U.S. patent application number 16/490044 was filed with the patent office on 2020-01-09 for fresh air blower and control method and apparatus thereof.
The applicant listed for this patent is GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., MIDEA GROUP CO., LTD.. Invention is credited to Rufeng CHEN, Bo LI, Xiaolong QIAN, Wentao SHU, Yongqiang WAN, Meibing XIONG, Yongfeng XU.
Application Number | 20200011559 16/490044 |
Document ID | / |
Family ID | 59819459 |
Filed Date | 2020-01-09 |
United States Patent
Application |
20200011559 |
Kind Code |
A1 |
WAN; Yongqiang ; et
al. |
January 9, 2020 |
FRESH AIR BLOWER AND CONTROL METHOD AND APPARATUS THEREOF
Abstract
A control apparatus for a fresh air blower, the apparatus
comprising an air blower module and an air blower module radiator
arranged corresponding to the air blower module. Further disclosed
is a control method for a fresh air blower, the method comprising
the following steps: (S1) acquiring a current operation mode of a
fresh air blower and determining whether the current operation mode
is a refrigeration mode or an air supply mode; (S2) if the current
operation mode is the refrigeration mode or the air supply mode,
further determining whether there is condensation in an air blower
module radiator; and (S3) if there is condensation in the air
blower module radiator, adjusting an air gear of the fresh air
blower or a target superheating degree of the fresh air blower
according to the current operation mode so as to eliminate the
condensation on the air blower module radiator.
Inventors: |
WAN; Yongqiang; (FOSHAN,
CN) ; XU; Yongfeng; (FOSHAN, CN) ; XIONG;
Meibing; (FOSHAN, CN) ; LI; Bo; (FOSHAN,
CN) ; SHU; Wentao; (FOSHAN, CN) ; QIAN;
Xiaolong; (FOSHAN, CN) ; CHEN; Rufeng;
(FOSHAN, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
MIDEA GROUP CO., LTD. |
FOSHAN
FOSHAN |
|
CN
CN |
|
|
Family ID: |
59819459 |
Appl. No.: |
16/490044 |
Filed: |
October 10, 2017 |
PCT Filed: |
October 10, 2017 |
PCT NO: |
PCT/CN2017/105569 |
371 Date: |
August 29, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24F 13/30 20130101;
F24F 2013/228 20130101; F24F 11/00 20130101; F24F 2110/20 20180101;
F24F 2110/10 20180101; F24F 11/83 20180101; F24F 11/30 20180101;
F24F 11/81 20180101 |
International
Class: |
F24F 11/30 20060101
F24F011/30; F24F 11/81 20060101 F24F011/81 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 21, 2017 |
CN |
201710475715.6 |
Claims
1. A method for controlling a fresh air machine, wherein the fresh
air machine comprises a fan module and a fan module radiator
arranged corresponding to the fan module, the method comprising:
obtaining a current operation mode of the fresh air machine;
determining whether the current operation mode is one of a
refrigeration mode or a delivery air mode; determining whether
there is condensation on the fan module radiator in response to
determining that the current operation mode is the refrigeration
mode or the delivery air mode; and in response to determining that
there is the condensation on the fan module radiator, adjusting a
wind level of the fresh air machine or a target overheat degree of
the fresh air machine based on the current operation mode, to
remove the condensation on the fan module radiator.
2. The method of claim 1, wherein determining whether there is the
condensation on the fan module radiator comprises: obtaining a
current indoor ambient temperature, a current indoor ambient
humidity, and a temperature of the fan module radiator; obtaining a
current indoor dew point temperature based on the current indoor
ambient temperature and the current indoor ambient humidity, and
calculating a temperature difference between the temperature of the
fan module radiator and the current indoor dew point temperature;
determining whether the temperature difference is less than a first
preset temperature value and lasts for a first preset time; and
determining that there is the condensation on the fan module
radiator in response to determining that the temperature difference
is less than the first preset temperature value and lasts for the
first preset time.
3. The method of claim 2, wherein adjusting the wind level of the
fresh air machine or the target overheat degree of the fresh air
machine based on the current operation mode comprises: in response
to determining that the current operation mode is the refrigeration
mode, increasing the target overheat degree of the fresh air
machine by a first preset value every second preset time, until the
temperature difference between the temperature of the fan module
radiator and the current indoor dew point temperature is greater
than or equal to the first preset temperature value and lasts for
the first preset time, or until the target overheat degree of the
fresh air machine reaches a maximum target overheat degree.
4. The method of claim 2, wherein adjusting the wind level of the
fresh air machine or the target overheat degree of the fresh air
machine based on the current operation mode comprises: in response
to determining that the current operation mode is the delivery air
mode, increasing the wind level of the fresh air machine by a first
preset level every second preset time, until the temperature
difference between the temperature of the fan module radiator and
the current indoor dew point temperature is greater than or equal
to the first preset temperature value and lasts for the first
preset time, or until the wind level of the fresh air machine
reaches a maximum wind level.
5. A non-transitory computer readable storage medium having stored
thereon computer programs that, when executed by a processor, cause
the processor to: obtain a current operation mode of the fresh air
machine; determine whether the current operation mode is one of a
refrigeration mode or a delivery air mode; determine whether there
is condensation on the fan module radiator in response to
determining that the current operation mode is the refrigeration
mode or the delivery air mode; and in response to determining that
there is the condensation on the fan module radiator, adjust a wind
level of the fresh air machine or a target overheat degree of the
fresh air machine based on the current operation mode, to remove
the condensation on the fan module radiator.
6. A device for controlling a fresh air machine, wherein the fresh
air machine comprises a fan module and a fan module radiator
arranged corresponding to the fan module, the device comprises: a
first obtaining module, configured to obtain a current operation
mode of the fresh air machine; a determining module, configured to
determine whether the current operation mode is one of a
refrigeration mode or a delivery air mode, and to determine whether
there is condensation on the fan module radiator in response to
determining that the current operation mode is the refrigeration
mode or the delivery air mode; and a control module, connected to
the determining module, and configured to, in response to
determining that there is the condensation on the fan module
radiator, adjust a wind level of the fresh air machine or a target
overheat degree of the fresh air machine based on the current
operation mode, to remove the condensation on the fan module
radiator.
7. The device of claim 6, further comprising: a second obtaining
module, configured to obtain a current indoor ambient temperature,
a current indoor ambient humidity, and a temperature of the fan
module radiator; wherein the determining module is configured to:
obtain a current indoor dew point temperature based on the current
indoor ambient temperature and the current indoor ambient humidity,
and calculate a temperature difference between the temperature of
the fan module radiator and the current indoor dew point
temperature; determine whether the temperature difference is less
than a first preset temperature value and lasts for a first preset
time; and determine that there is the condensation on the fan
module radiator in response to determining that the temperature
difference is less than the first preset temperature value and
lasts for the first preset time.
8. The device of claim 7, wherein when the control module is
configured to adjust the wind level of the fresh air machine or the
target overheat degree of the fresh air machine based on the
current operation mode, the control module is configured to: in
response to determining that the current operation mode is the
refrigeration mode, increase the target overheat degree of the
fresh air machine by a first preset value every second preset time,
until the temperature difference between the temperature of the fan
module radiator and the current indoor dew point temperature is
greater than or equal to the first preset temperature value and
lasts for the first preset time, or until the target overheat
degree of the fresh air machine reaches a maximum target overheat
degree.
9. The device of claim 7, wherein when the control module is
configured to adjust the wind level of the fresh air machine or the
target overheat degree of the fresh air machine based on the
current operation mode, the control module is configured to: in
response to determining that the current operation mode is the
delivery air mode, increase the wind level of the fresh air machine
by a first preset level every second preset time, until the
temperature difference between the temperature of the fan module
radiator and the current indoor dew point temperature is greater
than or equal to the first preset temperature value and lasts for
the first preset time, or until the wind level of the fresh air
machine reaches a maximum wind level.
10. A machine configured to provide air freshening, comprising the
device for control a fresh air machine according to claim 6.
Description
FIELD
[0001] The present disclosure relates to the field of air
conditioning technologies, and more particularly, to a method for
controlling a fresh air machine, a non-transitory computer readable
storage medium, a device for controlling a fresh air machine, and a
fresh air machine having the device for controlling a fresh air
machine.
BACKGROUND
[0002] With the rapid development of China's economy and the
improvement of people's living standards, air conditioners are
widely used in people's daily life. Based on people's requirements
for health and environment protection, fresh air machines are
favored by the market for their ability to introduce fresh air with
higher quality.
[0003] However, due to the unique outdoor air returning
characteristic of the fresh air machine system, its structure,
function and characteristic are quite different from those of the
ordinary indoor machine. For example, the large-capacity indoor
machine such as the fresh air machine or the high static pressure
has the fan module, and other indoor machines do not have the fan
module, this brings the problem unique to such large-capacity
indoor machines, such as condensation on the fan module. Once the
problem occurs, the reliability of the fresh air machine will be
greatly affected, and user experience will be affected.
SUMMARY
[0004] Embodiments of the present disclosure aim to solve at least
one of the technical problems in the related art to at least some
extent. Accordingly, a first objective of the present disclosure is
to provide a method for controlling a fresh air machine, when there
is condensation on the fan module radiator, the wind level or the
target overheat degree of the fresh air machine can be adjusted
according to the current operation mode of the fresh air machine,
to remove the condensation on the fan module radiator, such that
the fresh air machine can be reliably operated, and the user
satisfaction can be effectively improved.
[0005] A second objective of the present disclosure is to provide a
non-transitory computer readable storage medium.
[0006] A third objective of the present disclosure is to provide a
device for controlling a fresh air machine.
[0007] A fourth objective of the present disclosure is to provide a
fresh air machine.
[0008] To achieve the above objectives, embodiments of a first
aspect of the present disclosure provide a method for controlling a
fresh air machine. The fresh air machine includes a fan module and
a fan module radiator arranged corresponding to the fan module. The
method includes: obtaining a current operation mode of the fresh
air machine, and determining whether the current operation mode is
one of a refrigeration mode or a delivery air mode; determining
whether there is condensation on the fan module radiator in
response to determining that the current operation mode is the
refrigeration mode or the delivery air mode; and in response to
determining that there is the condensation on the fan module
radiator, adjusting a wind level of the fresh air machine or a
target overheat degree of the fresh air machine based on the
current operation mode, to remove the condensation on the fan
module radiator.
[0009] With the method for controlling a fresh air machine
according to embodiments of the present disclosure, the current
operation mode of the fresh air machine is obtained, it is
determined whether the current operation mode is one of the
refrigeration mode or the delivery air mode, in response to
determining that the current operation mode is the refrigeration
mode or the delivery air mode, it is further determined whether
there is condensation on the fan module radiator, and in response
to determining that there is the condensation on the fan module
radiator, the wind level of the fresh air machine or the target
overheat degree of the fresh air machine is adjusted based on the
current operation mode to remove the condensation on the fan module
radiator, such that the fresh air machine can be reliably operated,
and the user satisfaction can be effectively improved.
[0010] In an embodiment of the present disclosure, determining
whether there is the condensation on the fan module radiator
includes: obtaining a current indoor ambient temperature, a current
indoor ambient humidity, and a temperature of the fan module
radiator; obtaining a current indoor dew point temperature based on
the current indoor ambient temperature and the current indoor
ambient humidity, and calculating a temperature difference between
the temperature of the fan module radiator and the current indoor
dew point temperature; determining whether the temperature
difference is less than a first preset temperature value and lasts
for a first preset time; and determining that there is the
condensation on the fan module radiator in response to determining
that the temperature difference is less than the first preset
temperature value and lasts for the first preset time.
[0011] In an embodiment of the present disclosure, adjusting the
wind level of the fresh air machine or the target overheat degree
of the fresh air machine based on the current operation mode
includes: in response to determining that the current operation
mode is the refrigeration mode, increasing the target overheat
degree of the fresh air machine by a first preset value every
second preset time, until the temperature difference between the
temperature of the fan module radiator and the current indoor dew
point temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
target overheat degree of the fresh air machine reaches a maximum
target overheat degree.
[0012] In an embodiment of the present disclosure, adjusting the
wind level of the fresh air machine or the target overheat degree
of the fresh air machine based on the current operation mode
includes: in response to determining that the current operation
mode is the delivery air mode, increasing the wind level of the
fresh air machine by a first preset level every second preset time,
until the temperature difference between the temperature of the fan
module radiator and the current indoor dew point temperature is
greater than or equal to the first preset temperature value and
lasts for the first preset time, or until the wind level of the
fresh air machine reaches a maximum wind level.
[0013] To achieve the above objectives, embodiments of a second
aspect of the present disclosure provide a non-transitory computer
readable storage medium having stored thereon computer programs
that, when executed by a processor, cause the method for
controlling a fresh air machine to be implemented.
[0014] With the non-transitory computer readable storage medium
according to embodiments of the present disclosure, by performing
the above method for controlling a fresh air machine, when there is
condensation on the fan module radiator, the wind level or the
target overheat degree of the fresh air machine may be adjusted
according to the current operation mode of the fresh air machine,
to remove the condensation on the fan module radiator, such that
the fresh air machine can be reliably operated, and the user
satisfaction can be effectively improved.
[0015] To achieve the above objectives, embodiments of a third
aspect of the present disclosure provide a device for controlling a
fresh air machine. The fresh air machine includes a fan module and
a fan module radiator arranged corresponding to the fan module. The
device includes a first obtaining module, a determining module, and
a control module. The first obtaining module is configured to
obtain a current operation mode of the fresh air machine. The
determining module is configured to determine whether the current
operation mode is one of a refrigeration mode or a delivery air
mode, and to determine whether there is condensation on the fan
module radiator in response to determining that the current
operation mode is the refrigeration mode or the delivery air mode.
The control module is connected to the determining module, and is
configured to, in response to determining that there is the
condensation on the fan module radiator, adjust a wind level of the
fresh air machine or a target overheat degree of the fresh air
machine based on the current operation mode, to remove the
condensation on the fan module radiator.
[0016] With the device for controlling a fresh air machine
according to embodiments of the present disclosure, the first
obtaining module obtains the current operation mode of the fresh
air machine, the determining module determines whether the current
operation mode is one of the refrigeration mode or the delivery air
mode, in response to determining that the current operation mode is
the refrigeration mode or the delivery air mode, the determining
module further determines whether there is condensation on the fan
module radiator, and in response to determining that there is the
condensation on the fan module radiator, the control module adjusts
adjust the wind level of the fresh air machine or the target
overheat degree of the fresh air machine based on the current
operation mode, to remove the condensation on the fan module
radiator, such that the fresh air machine can be reliably operated,
and the user satisfaction can be effectively improved.
[0017] In an embodiment of the present disclosure, the device
further includes a second obtaining module. The second obtaining
module is configured to obtain a current indoor ambient
temperature, a current indoor ambient humidity, and a temperature
of the fan module radiator. The determining module is configured
to: obtain a current indoor dew point temperature based on the
current indoor ambient temperature and the current indoor ambient
humidity, and calculate a temperature difference between the
temperature of the fan module radiator and the current indoor dew
point temperature; determine whether the temperature difference is
less than a first preset temperature value and lasts for a first
preset time; and determine that there is the condensation on the
fan module radiator in response to determining that the temperature
difference is less than the first preset temperature value and
lasts for the first preset time.
[0018] In an embodiment of the present disclosure, when the control
module is configured to adjust the wind level of the fresh air
machine or the target overheat degree of the fresh air machine
based on the current operation mode, the control module is
configured to: in response to determining that the current
operation mode is the refrigeration mode, increase the target
overheat degree of the fresh air machine by a first preset value
every second preset time, until the temperature difference between
the temperature of the fan module radiator and the current indoor
dew point temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
target overheat degree of the fresh air machine reaches a maximum
target overheat degree.
[0019] In an embodiment of the present disclosure, when the control
module is configured to adjust the wind level of the fresh air
machine or the target overheat degree of the fresh air machine
based on the current operation mode, the control module is
configured to: in response to determining that the current
operation mode is the delivery air mode, increase the wind level of
the fresh air machine by a first preset level every second preset
time, until the temperature difference between the temperature of
the fan module radiator and the current indoor dew point
temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
wind level of the fresh air machine reaches a maximum wind
level.
[0020] To achieve the above objectives, embodiments of a fourth
aspect of the present disclosure provide a fresh air machine. The
fresh air machine includes the above device for control a fresh air
machine.
[0021] With the fresh air machine according to embodiments of the
present disclosure, based on the above device, when there is
condensation on the fan module radiator, the wind level or the
target overheat degree of the fresh air machine can be adjusted
according to the current operation mode of the fresh air machine,
to remove the condensation on the fan module radiator, such that
the fresh air machine can be reliably operated, and the user
satisfaction can be effectively improved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] FIG. 1 is a flow chart of a method for controlling a fresh
air machine according to an embodiment of the present
disclosure;
[0023] FIG. 2 is a schematic diagram of an arrangement position of
a sensor according to an embodiment of the present disclosure;
[0024] FIG. 3 is a flow chart of a method for controlling a fresh
air machine according to an embodiment of the present
disclosure;
[0025] FIG. 4 is a block diagram of a device for controlling a
fresh air machine according to an embodiment of the present
disclosure; and
[0026] FIG. 5 is a block diagram of a device for controlling a
fresh air machine according to another embodiment of the present
disclosure.
DETAILED DESCRIPTION
[0027] Embodiments of the present disclosure will be described in
detail in the following descriptions, examples of which are shown
in the accompanying drawings, in which the same or similar elements
and elements having same or similar functions are denoted by like
reference numerals throughout the descriptions. The embodiments
described herein with reference to the accompanying drawings are
exemplary, which are used to explain the present disclosure, and
shall not be construed to limit the present disclosure.
[0028] The method for controlling a fresh air machine, the
non-transitory computer readable storage medium, the device for
controlling a fresh air machine, and the fresh air machine
including the device for controlling a fresh air machine will be
described below with reference to the accompanying drawings.
[0029] In an embodiment of the present disclosure, the fresh air
machine may include a fan module and a fan module radiator arranged
corresponding to the fan module. The fan module is arranged in the
electric control box of the fresh air machine. A side of the fan
module radiator is arranged in the electric control box, and the
other side of the fan module radiator is exposed in the box on the
delivery air side of the fresh air machine. The fan module is
arranged on the fan module radiator, such that the fan module
radiator can radiate the heat of the fan module.
[0030] When the fresh air machine performs refrigerant operation in
the indoor environment with high humidity, the outlet temperature
of the fresh air machine may be lower, such that the fan module may
be cooled, and the outlet wind with the lower temperature may also
be transmitted to the fan module radiator close to one side of the
fan module. Since the thermal conductivity of the fan module
radiator is better, its surface temperature can be greatly reduced,
when the surface temperature is less than the indoor dew point
temperature, condensation may occur on the fan module radiator, and
the condensation may drip into or flow into the electric control
box, causing short circuit, component damage, and even fire or
other accidents in serious cases. Therefore, when it is determined
that the fan module radiator is about to condense, it is necessary
to take corresponding measures to prevent the condensation from
continuing to occur, to avoid the above dangerous situation, and
ensure the safe and reliable operation of the fresh air
machine.
[0031] FIG. 1 is a flow chart of a method for controlling a fresh
air machine according to an embodiment of the present disclosure.
As illustrated in FIG. 1, the method according the embodiment of
the present disclosure may include the followings.
[0032] At block S1, a current operation mode of the fresh air
machine is obtained, and it is determined whether the current
operation mode is one of a refrigeration mode or a delivery air
mode.
[0033] At block S2, it is determined whether there is condensation
on the fan module radiator in response to determining that the
current operation mode is the refrigeration mode or the delivery
air mode.
[0034] Specifically, according to the foregoing analysis, it is
known that, when the surface temperature of the fan module radiator
is less than the indoor dew point temperature, the condensation may
occur on the fan module radiator. Therefore, in the present
disclosure, the risk of occurrence of condensation on the fan
module radiator (i.e., determining whether there is the
condensation on the fan module radiator) can be determined based on
the surface temperature of the fan module radiator and the indoor
dew point temperature.
[0035] According to an embodiment of the present disclosure,
determining whether there is the condensation on the fan module
radiator may include: obtaining a current indoor ambient
temperature, a current indoor ambient humidity, and a temperature
of the fan module radiator; obtaining a current indoor dew point
temperature based on the current indoor ambient temperature and the
current indoor ambient humidity, and calculating a temperature
difference between the temperature of the fan module radiator and
the current indoor dew point temperature; determining whether the
temperature difference is less than a first preset temperature
value and lasts for a first preset time; and determining that there
is the condensation on the fan module radiator in response to
determining that the temperature difference is less than the first
preset temperature value and lasts for the first preset time. The
first preset temperature value and the first preset time may be
calibrated according to actual conditions.
[0036] Specifically, as illustrated in FIG. 2, the current indoor
ambient temperature T1 and the current indoor ambient humidity TW
may be obtained by the indoor temperature sensor and the indoor
humidity sensor, respectively (or T1 and TW may be obtained by the
indoor temperature/humidity sensor), and the temperature Tf (i.e.,
the surface temperature) of the fan module radiator may be obtained
by the temperature sensor disposed on the fan module radiator.
Then, the current indoor dew point temperature Td can be calculated
based on T1 and TW, and the difference between Tf and Td can be
calculated, and the difference (Tf-Td) can be determined. When the
difference (Tf-Td) is less than the first preset temperature value
.DELTA.T, and the state in which the difference (Tf-Td) is less
than the first preset temperature value .DELTA.T lasts for the
first preset time T, it can be indicated that the temperature of
the fan module radiator is far less than the current indoor dew
point temperature, and it can be determined that there may be
condensation on the fan module radiator. Otherwise, it can be
determined that there may not be condensation on the fan module
radiator.
[0037] At block S13, in response to determining that there is the
condensation on the fan module radiator, a wind level of the fresh
air machine or a target overheat degree of the fresh air machine is
adjusted based on the current operation mode, to remove the
condensation on the fan module radiator.
[0038] Specifically, when it is determined that there is
condensation on the fan module radiator, the condensation on fan
module radiator may be removed by increasing the temperature of the
fan module radiator, since the operation mode of the fresh air
machine may be different, the way to increase the temperature of
the fan module radiator may also vary.
[0039] For example, when the current operation mode of the fresh
air machine is the delivery air mode, the compressor does not
operate, in this case, the temperature of the fan module radiator
may be increased by adjusting the fan speed of the fresh air
machine. When the current operation mode of the fresh air machine
is the refrigeration mode, the compressor operates, in this case,
the temperature of the fan module radiator may be increased by
adjusting the indoor refrigerant capacity. Since, during the
refrigerating process, the refrigerant flowing into the fresh air
machine is controlled according to the target overheat degree of
the evaporator in the fresh air machine, the temperature of the fan
module radiator may be increased by adjusting the target overheat
degree of the evaporator.
[0040] The adjustment of the wind level (the wind level of the fan
of the fresh air machine) of the fresh air machine to remove the
condensation on the fresh air machine will be described below when
the current operation mode of the fresh air machine is the delivery
air mode.
[0041] According to an embodiment of the present disclosure,
adjusting the wind level of the fresh air machine or the target
overheat degree of the fresh air machine based on the current
operation mode includes: in response to determining that the
current operation mode is the delivery air mode, increasing the
wind level of the fresh air machine by a first preset level every
second preset time, until the temperature difference between the
temperature of the fan module radiator and the current indoor dew
point temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
wind level of the fresh air machine reaches a maximum wind level.
The second preset time and the first preset level may be calibrated
according to actual conditions.
[0042] Specifically, when the current operation mode of the fresh
air machine is the delivery air mode, and there is the condensation
on the fan module radiator, the temperature of the fan module
radiator may be increased by increasing the wind level of the fresh
air machine, such that the temperature of the fan module radiator
can be close to greater than the indoor dew point temperature, to
remove the condensation water on the fan module radiator. For
example, the wind level of the fresh air machine may be increased
by the first preset level (such as 1 level) every second preset
time, until the difference (Tf-Td) is greater than or equal to the
first preset temperature value .DELTA.T, and the state in which the
difference (Tf-Td) is greater than or equal to the first preset
temperature value .DELTA.T lasts for the first preset time T, or
unit the wind level of the fresh air machine reaches the maximum
wind level (which may be determined according to the specification
of the air machine), the adjustment of the wind level of the fresh
air machine can be stopped, and the fan of the fresh air machine
can be operated in the current wind level.
[0043] The adjustment of the target overheat degree of the fresh
air machine to remove the condensation on the fresh air machine
will be described below when the current operation mode of the
fresh air machine is the refrigeration mode.
[0044] According to an embodiment of the present disclosure,
adjusting the wind level of the fresh air machine or the target
overheat degree of the fresh air machine based on the current
operation mode includes: in response to determining that the
current operation mode is the refrigeration mode, increasing the
target overheat degree of the fresh air machine by a first preset
value every second preset time, until the temperature difference
between the temperature of the fan module radiator and the current
indoor dew point temperature is greater than or equal to the first
preset temperature value and lasts for the first preset time, or
until the target overheat degree of the fresh air machine reaches a
maximum target overheat degree. The first preset value may be
calibrated according to actual conditions.
[0045] Specifically, when the current operation mode is the
refrigeration mode, and there is the condensation on the fan module
radiator, the temperature of the fan module radiator may be
increased by increasing the target overheat degree of the
evaporator to remove the condensation water on the fan module
radiator. For example, the target overheat degree of the evaporator
may be increased by the first preset value (such as 1.degree. C.)
every second preset time, until the difference (Tf-Td) is greater
than or equal to the first preset temperature value .DELTA.T and
lasts for the first preset time T, or unit the target overheat
degree of the evaporator reaches the maximum target overheat degree
(the maximum target overheat degree allowed during normal operation
of the fresh air machine), the adjustment of the target overheat
degree of the evaporator can be stopped, and the fresh air machine
can be controlled to operate in the current target overheat
degree.
[0046] The target overheat degree of the evaporator may be default
target overheat degree when shipped from the factory, or the target
overheat degree sent by the outdoor machine or the central
controller during the refrigeration operation of the fresh air
machine, or the target overheat degree calculated based on the
saturation temperature corresponding to the outlet temperature and
the outlet pressure, by obtaining the outlet temperature and the
outlet pressure of the evaporator, which is not limited herein.
[0047] FIG. 3 is a flow chart of a method for controlling a fresh
air machine according to an embodiment of the present disclosure.
As illustrated in FIG. 3, the method according to the embodiment of
the present disclosure may include the followings.
[0048] At block S101, the fresh air machine operates normally.
[0049] At block S102, it is determined whether the current
operation mode of the fresh air machine is one of a refrigeration
mode or a delivery air mode. If yes, go to block S103, if no, go to
block S101.
[0050] At block S103, the current indoor ambient temperature T1,
the current indoor ambient humidity TW and the temperature of the
fan module radiator Tf are obtained in real time.
[0051] At block S104, the current indoor dew point temperature Td
is obtained based on T1 and TW.
[0052] At block S105, it is determined whether (Tf-Td) is less than
the first preset value .DELTA.T and lasts for the first preset time
T. If yes, go to block S106, if no, go to block S101.
[0053] At block S106, it is determined whether the current
operation mode is the refrigeration mode. If yes, go to block S107,
if no, go to block S109.
[0054] At block S107, the target overheat degree SHS of the fresh
air machine is increased by a first preset value (such as 1.degree.
C.) every second preset time t2.
[0055] At block S108, it is determined whether (Tf-Td) is greater
than or equal to the first preset value .DELTA.T and lasts for the
first preset time T, or whether the target overheat degree SHS is
equal to the maximum target overheat degree SHSmax. If yes, go to
block S111, if no, go to block S107.
[0056] At block S109, the wind level FAN of the fresh air machine
is increased by a first preset level (such as 1 level) every second
preset time t2.
[0057] At block S110, it is determined whether (Tf-Td) is greater
than or equal to the first preset value .DELTA.T and lasts for the
first preset time T, or whether the wind level FAN is equal to the
maximum wind level FANmax. If yes, got o block S111, if no, go to
block S109.
[0058] At block S111, the current state is kept.
[0059] Specifically, when the fresh air machine operates in the
refrigeration mode, and the fan of fresh air machine is in the on
state, the condensation on the fan module radiator can be removed
by adjusting the target overheat degree of the evaporator and the
fan wind level of the fresh air machine. For example, the fan wind
level may be adjusted first, and then the target overheat degree of
the evaporator is adjusted, which will not be described in detail
here.
[0060] In summary, with the method for controlling a fresh air
machine according to embodiments of the present disclosure, the
current operation mode of the fresh air machine is obtained, it is
determined whether the current operation mode is one of the
refrigeration mode or the delivery air mode, in response to
determining that the current operation mode is the refrigeration
mode or the delivery air mode, it is further determined whether
there is condensation on the fan module radiator, and in response
to determining that there is the condensation on the fan module
radiator, the wind level of the fresh air machine or the target
overheat degree of the fresh air machine is adjusted based on the
current operation mode to remove the condensation on the fan module
radiator, such that the fresh air machine can be reliably operated,
and the user satisfaction can be effectively improved.
[0061] FIG. 4 is a block diagram of a device for controlling a
fresh air machine according to an embodiment of the present
disclosure. In the embodiment of the present disclosure, the fresh
air machine includes a fan module and a fan module radiator
arranged corresponding to the fan module.
[0062] As illustrated in FIG. 4, in the embodiment of the present
disclosure, the device may include a first obtaining module 10, a
determining module 20, and a control module 30.
[0063] The first obtaining module 10 is configured to obtain a
current operation mode of the fresh air machine. The determining
module 20 is configured to determine whether the current operation
mode is one of a refrigeration mode or a delivery air mode, and to
determine whether there is condensation on the fan module radiator
in response to determining that the current operation mode is the
refrigeration mode or the delivery air mode. The control module 30
is connected to the determining module 20, and is configured to, in
response to determining that there is the condensation on the fan
module radiator, adjust a wind level of the fresh air machine or a
target overheat degree of the fresh air machine based on the
current operation mode, to remove the condensation on the fan
module radiator.
[0064] In an embodiment of the present disclosure, as shown in FIG.
5, the device further includes a second obtaining module 40. The
second obtaining module 40 is configured to obtain a current indoor
ambient temperature, a current indoor ambient humidity, and a
temperature of the fan module radiator. The determining module 20
is configured to: obtain a current indoor dew point temperature
based on the current indoor ambient temperature and the current
indoor ambient humidity, and calculate a temperature difference
between the temperature of the fan module radiator and the current
indoor dew point temperature; determine whether the temperature
difference is less than a first preset temperature value and lasts
for a first preset time; and determine that there is the
condensation on the fan module radiator in response to determining
that the temperature difference is less than the first preset
temperature value and lasts for the first preset time.
[0065] In an embodiment of the present disclosure, when the control
module 30 is configured to adjust the wind level of the fresh air
machine or the target overheat degree of the fresh air machine
based on the current operation mode, the control module 30 is
configured to: in response to determining that the current
operation mode is the refrigeration mode, increase the target
overheat degree of the fresh air machine by a first preset value
every second preset time, until the temperature difference between
the temperature of the fan module radiator and the current indoor
dew point temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
target overheat degree of the fresh air machine reaches a maximum
target overheat degree.
[0066] In an embodiment of the present disclosure, when the control
module 30 is configured to adjust the wind level of the fresh air
machine or the target overheat degree of the fresh air machine
based on the current operation mode, the control module 30 is
configured to: in response to determining that the current
operation mode is the delivery air mode, increase the wind level of
the fresh air machine by a first preset level every second preset
time, until the temperature difference between the temperature of
the fan module radiator and the current indoor dew point
temperature is greater than or equal to the first preset
temperature value and lasts for the first preset time, or until the
wind level of the fresh air machine reaches a maximum wind
level.
[0067] It should be noted that, for details not disclosed in the
device for controlling a fresh air machine in the embodiment of the
present disclosure, reference may be made to the details of the
method for controlling a fresh air machine according to the
embodiment of the present disclosure, and details are not described
herein again.
[0068] With the device for controlling a fresh air machine
according to embodiments of the present disclosure, the first
obtaining module obtains the current operation mode of the fresh
air machine, the determining module determines whether the current
operation mode is one of the refrigeration mode or the delivery air
mode, in response to determining that the current operation mode is
the refrigeration mode or the delivery air mode, the determining
module further determines whether there is condensation on the fan
module radiator, and in response to determining that there is the
condensation on the fan module radiator, the control module adjusts
adjust the wind level of the fresh air machine or the target
overheat degree of the fresh air machine based on the current
operation mode, to remove the condensation on the fan module
radiator, such that the fresh air machine can be reliably operated,
and the user satisfaction can be effectively improved.
[0069] In addition, embodiments of the present disclosure further
provide a non-transitory computer readable storage medium having
stored thereon computer programs that, when executed by a
processor, causes the method for controlling a fresh air machine to
be implemented.
[0070] With the non-transitory computer readable storage medium
according to embodiments of the present disclosure, by performing
the above method for controlling a fresh air machine, when there is
condensation on the fan module radiator, the wind level or the
target overheat degree of the fresh air machine may be adjusted
according to the current operation mode of the fresh air machine,
to remove the condensation on the fan module radiator, such that
the fresh air machine can be reliably operated, and the user
satisfaction can be effectively improved.
[0071] In addition, embodiments of the present disclosure further
provide a fresh air machine. The fresh air machine includes the
above device for control a fresh air machine.
[0072] With the fresh air machine according to embodiments of the
present disclosure, based on the above device, when there is
condensation on the fan module radiator, the wind level or the
target overheat degree of the fresh air machine can be adjusted
according to the current operation mode of the fresh air machine,
to remove the condensation on the fan module radiator, such that
the fresh air machine can be reliably operated, and the user
satisfaction can be effectively improved.
[0073] It should be understood that, each part of the present
disclosure may be realized by the hardware, software, firmware or
their combination. In the above embodiments, a plurality of steps
or methods may be realized by the software or firmware stored in
the memory and executed by the appropriate instruction execution
system. For example, if it is realized by the hardware, likewise in
another embodiment, the steps or methods may be realized by one or
a combination of the following techniques known in the art: a
discrete logic circuit having a logic gate circuit for realizing a
logic function of a data signal, an application-specific integrated
circuit having an appropriate combination logic gate circuit, a
programmable gate array (PGA), a field programmable gate array
(FPGA), etc.
[0074] In addition, in the description of the present disclosure,
terms such as "central," "longitudinal," "lateral," "length,"
"width," "thickness," "upper," "lower," "front," "rear," "left,"
"right," "vertical," "horizontal," "top," "bottom," "inner,"
"outer," "clockwise," "counterclockwise," "axial," "radial" and
"peripheral" should be construed to refer to the orientation as
then described or as shown in the drawings under discussion. These
relative terms are for convenience of description and do not
require that the present disclosure be constructed or operated in a
particular orientation, therefore cannot be construed to limit the
present disclosure.
[0075] In addition, terms such as "first" and "second" are used
herein for purposes of description and are not intended to indicate
or imply relative importance or significance or to imply the number
of indicated technical features. Thus, the feature defined with
"first" and "second" may explicitly or implicitly comprises one or
more of the features. In the description of the present disclosure,
"a plurality of" means two or more than two, unless specified
otherwise.
[0076] In the present disclosure, unless specified or limited
otherwise, the terms "mounted," "connected," "coupled," "fixed" and
the like are used broadly, and may be, for example, fixed
connections, detachable connections, or integral connections; may
also be mechanical or electrical connections; may also be direct
connections or indirect connections via intervening structures; may
also be inner communications of two elements.
[0077] In the present disclosure, unless specified or limited
otherwise, a structure in which a first feature is "on" or "below"
a second feature may include an embodiment in which the first
feature is in direct contact with the second feature, and may also
include an embodiment in which the first feature and the second
feature are not in direct contact with each other, but are
contacted via an additional feature formed therebetween.
Furthermore, a first feature "on," "above," or "on top of" a second
feature may include an embodiment in which the first feature is
right or obliquely "on," "above," or "on top of" the second
feature, or just means that the first feature is at a height higher
than that of the second feature; while a first feature "below,"
"under," or "on bottom of" a second feature may include an
embodiment in which the first feature is right or obliquely
"below," "under," or "on bottom of" the second feature, or just
means that the first feature is at a height lower than that of the
second feature.
[0078] Reference throughout this specification to "an embodiment,"
"some embodiments," "one embodiment," "an example," "a specific
example," or "some examples" means that a particular feature,
structure, material, or characteristic described in connection with
the embodiment or example are included in at least one embodiment
or example of the present disclosure. In the specification,
expressions of the above terms do not need for same embodiments or
examples. Furthermore, the feature, structure, material, or
characteristic described can be incorporated in a proper way in any
one or more embodiments or examples. In addition, under
non-conflicting condition.
[0079] Although explanatory embodiments have been shown and
described, it would be appreciated that the above embodiments are
exemplary and cannot be construed to limit the present disclosure,
and changes, amendments, alternatives and modifications can be made
in the embodiments.
* * * * *