U.S. patent application number 11/652797 was filed with the patent office on 2007-07-19 for thin air processing device for heat ventilation air conditioning system.
This patent application is currently assigned to Industrial Design Laboratories Inc.. Invention is credited to Lev Fedoseyev, Edward Lopatinsky, Daniel Schaefer.
Application Number | 20070166177 11/652797 |
Document ID | / |
Family ID | 38263361 |
Filed Date | 2007-07-19 |
United States Patent
Application |
20070166177 |
Kind Code |
A1 |
Lopatinsky; Edward ; et
al. |
July 19, 2007 |
Thin air processing device for heat ventilation air conditioning
system
Abstract
A thin air processing device suitable for wall mounting
comprises a housing and located inside a crossflow blower, an air
processing unit and a controller unit. The housing comprises a
cover plate, a base and side parts. The blower comprises a casing,
an impeller, an electric drive with a flat stator and a magnetized
rotor, and an axle fixed perpendicularly to the base. The casing
comprises an inlet, a central part and an outlet and integrated
with the housing thus a volute shape of the casing formed by side
parts. The impeller comprises circumferential arrayed magnetic
means thus serving as the magnetized rotor. The flat stator
comprises circumferential arrayed coils with magnetic axes coincide
with a plane of the flat stator and integrated with the housing.
The air processing unit located at the inlet of the casing and
comprises an intake and an outtake openings.
Inventors: |
Lopatinsky; Edward; (San
Diego, CA) ; Fedoseyev; Lev; (El Cajon, CA) ;
Schaefer; Daniel; (Kanarravile, UT) |
Correspondence
Address: |
Edward Lopatinsky
5450 Complex str. # 307
San Diego
CA
92123
US
|
Assignee: |
Industrial Design Laboratories
Inc.
|
Family ID: |
38263361 |
Appl. No.: |
11/652797 |
Filed: |
January 12, 2007 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60759949 |
Jan 19, 2006 |
|
|
|
Current U.S.
Class: |
417/423.1 ;
417/423.9 |
Current CPC
Class: |
F04D 17/04 20130101 |
Class at
Publication: |
417/423.1 ;
417/423.9 |
International
Class: |
F04B 17/00 20060101
F04B017/00 |
Claims
1. A thin air processing device for heat ventilation air
conditioning system comprising a housing and located inside a
blower, an air processing unit and a controller unit, wherein: (i)
said housing comprising a cover plate, a base and side parts; (ii)
said blower comprising a casing, a drum type impeller, an electric
drive with a flat stator and a magnetized rotor, and an axle fixed
perpendicularly to said base; (iii) said casing comprising an
inlet, a central part and an outlet and being integrated with said
housing thus a volute shape of said casing being formed by said
side parts; (iv) said impeller being placed at said central part
and comprising blades being attached to a backplate and a shroud,
and circumferential arrayed magnetic means at the peripheral part
of said impeller, thus serving as said magnetized rotor; (v) said
flat stator comprising circumferential arrayed coils with magnetic
axes being coincide with a plane of said flat stator and being
integrated with said housing; (vi) said magnetic means being placed
and magnetized along said plane of said flat stator thus magnetic
axes of said coils and said magnetic means being located at said
plane substantially; (vii) said air processing unit being located
at said inlet of said casing and comprising an intake and an
outtake openings, so air flows through said intake opening, said
air processing unit, said outtake opening, said inlet, said
impeller and said outlet in a series way, thus said blower being a
crossflow type blower.
2. The air processing device as claimed in claim 1, wherein said
casing further comprising two volute tongues divided the impeller
circumference on an inlet and an outlet arcs thus said inlet arc
being within 90-130 degrees and said outlet arc being within
140-230 degrees.
3. The air processing device as claimed in claim 1, wherein said
blower further comprising at least one guide vane surrounded by
said impeller and being integrated with said housing, so air flows
through said intake opening, said air processing unit, said outtake
opening, said inlet, said blades, said guide vane, said blades
again and said outlet in a series way.
4. The air processing device as claimed in claim 3, wherein said at
least one guide vane being integrated with said base.
5. The air processing device as claimed in claim 3, wherein said at
least one guide vane being integrated with said cover plate.
6. The air processing device as claimed in claim 1, wherein said
flat stator being integrated with said base while said magnetic
means being integrated with said shroud.
7. The air processing device as claimed in claim 1, wherein said
flat stator being integrated with said cover plate while said
magnetic means being integrated with said backplate.
8. The air processing device as claimed in claim 1, wherein said
air processing unit comprising an air purifier placed within said
intake and outtake openings.
9. The air processing device as claimed in claim 1, wherein said
air processing unit comprising a temperature regulating means
placed within said intake and outtake openings.
10. The air processing device as claimed in claim 1, wherein said
air processing unit comprising a humidifier placed within said
intake and outtake openings.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims the benefit of priority of
U.S. Provisional Patent Application No. 60/759,949 filed Jan. 19,
2006 for Edward Lopatinsky et al. the entire content of which is
incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The present invention relates generally to heat ventilation
air conditioning (HVAC) systems for moving air, and/or regulating
the temperature, humidity and quality of indoor air. More
particularly, the present invention relates to air processing
devices such as ventilators including heat ventilators, coolers,
air conditioners and air purifiers. The present invention is
particularly, but not exclusively, useful for systems that are
mounted on the wall and became a part of room decor; therefore,
thickness of the system is a critical factor.
BACKGROUND OF THE INVENTION
[0003] Regulation of the temperature, humidity and indoor air
quality is an important consideration during the design of HVAC
systems. Such air parameters are managed to improve human comfort
and productivity, and to avoid some specific health problems. All
such air processing devices are comprised of an air moving device
plus some air processing unit, usually external to the structure.
The system might provide humidifier, de-humidifier, air
conditioner, filter, or other functions, but the present invention
is applicable to those systems in which a thin, unobtrusive,
wall-mounted air movement system is desirable, while retaining
efficient air movement and low noise.
[0004] In addition to the main requirements like supplying enough
airflow at the specific static pressure there are some specific
requirements for air moving devices such as lower sound levels and
relatively high efficiency.
[0005] Axial fans are rarely used as air moving devices because
they do not create enough static pressure required at the required
airflow. Such designs are described in the International Patent
Application WO 2005/040686 "Window Type Air Conditioner".
[0006] There are numerous designs of air processing devices for
HVAC systems that include radial type blowers as an air moving
devices, for example, U.S. patent application 2005/0257687. Radial
blowers for indoor air processing devices create sufficient static
pressure at a given airflow, but have relatively small diameter of
the impeller, usually less than 500 mm. It is well known that for
such diameters the total blower efficiency decreases
dramatically.
[0007] Crossflow blowers are used in air processing devices more
often due to their affordable mounting performance and a well known
ability to achieve relatively high efficiency that does not depend
upon diameter size. And more, the crossflow blower creates much
more static pressure at the same airflow unlike the radial blower
when other conditions are equal. There are many such designs, for
example, International Patent Application WO 2004/085929 "Indoor
Unit for Air Conditioner" and Japanese Patent No. JP2000297945 "An
Air Conditioner". According to these designs, air processing
devices comprise a base with a flat surface for wall mounting and
the axis of the crossflow blower is parallel in respect to that
surface. Electric motors for typical crossflow blowers are located
adjacent to the impellers and a drive is achieved by belt or other
means, because when the electric motor is placed inside the
impeller it destroys the internal aerodynamic structure of the
crossflow blower thus dramatically decreasing performance
characteristics.
[0008] Modern air processing devices have become a part of indoor
interior as a wall-mounted system, creating a requirement for thin
box shaped designs. But, known designs do not allow a thin air
processing device with the crossflow blower for such wall-mounted
air movement systems. The thickness of known devices with the
crossflow blower axis parallel to the mounting surface is defined
by the impeller diameter. Such solutions are thicker than desired,
and neither satisfy the market.
[0009] The main problem of all known air processing devices is that
they cannot resolve the contradiction between the high performance
that requires a relatively big impeller diameter on the one hand
and a small thickness of the whole device on the other hand.
[0010] Therefore, it is generally desirable to provide a thin, box
shaped air processing device for indoor HVAC systems with an
efficient crossflow blower that overcomes such problems in a
mechanically feasible manner.
SUMMARY OF THE INVENTION
[0011] According to the present invention a thin air processing
device for heat ventilation air conditioning system comprises a
housing and located inside a blower, an air processing unit and a
controller unit. The housing comprises a cover plate, a base and
side parts. The blower comprises a casing, a drum type impeller, an
electric drive with a flat stator and a magnetized rotor, and an
axle fixed perpendicularly to the base. The casing comprises an
inlet, a central part and an outlet and integrated with the housing
thus a volute shape of the casing formed by the side parts. The
impeller is placed at the central part and comprises blades
attached to a backplate and a shroud, and circumferential arrayed
magnetic means at the peripheral part of the impeller, serving as
the magnetized rotor. The flat stator comprises circumferential
arrayed coils with magnetic axes coincide with a plane of the flat
stator and integrated with the housing. The magnetic means placed
and magnetized along the plane of the flat stator thus magnetic
axes of the coils and the magnetic means located at the plane of
the flat stator substantially. The air processing unit located at
the inlet of the casing and comprises an intake and an outtake
openings, so air flows through the intake opening, the air
processing unit, the outtake opening, the inlet, the impeller and
the outlet in a series way, thus the blower is a crossflow type
blower.
[0012] The casing further comprises two volute tongues divided the
impeller circumference on an inlet and an outlet arcs thus the
inlet arc is within 90-130 degrees and the outlet arc is within
140-230 degrees.
[0013] The preferred embodiment according to the present invention
comprises the blower with at least one guide vane surrounded by the
impeller and integrated with the base, so air flows through the
intake opening, the air processing unit, the outtake opening, the
inlet, the blades, the guide vane, the blades again and the outlet
in a series way. The flat stator is integrated with the base while
the magnetic means is integrated with the shroud.
[0014] According to the second embodiment of the present invention
the flat stator is integrated with the cover plate while the
magnetic means is integrated with the backplate.
[0015] According to the other embodiment of the present invention
at least one guide vane is integrated with the cover plate.
[0016] The air processing unit can comprise an air purifier and/or
a filter and/or a humidifier and/or a temperature regulating means
placed within the intake and outtake openings.
[0017] The foregoing and other objectives, features and advantages
of the invention will be more readily understood upon consideration
of the following detailed description of the invention, taken in
conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 is a perspective view showing the preferred
embodiment of the thin air processing device for heat ventilation
air conditioning system for the present invention.
[0019] FIG. 2 is an exploded view showing the preferred embodiment
of the air processing device for the present invention.
[0020] FIG. 3 is an exploded view showing the housing and flat
stator integrated with the base according to the preferred
embodiment of the air processing device for the present
invention.
[0021] FIG. 4 is a plane top view showing the housing and drum type
impeller according to the preferred embodiment of the air
processing device.
[0022] FIG. 5 is a perspective exploded view showing the second
embodiment of the air processing device for the present invention.
The flat stator integrated with the cover plate while the magnetic
means integrated with the backplate.
[0023] FIG. 6 is an exploded view showing the second embodiment of
the air processing device for the present invention.
[0024] FIG. 7 is an exploded view showing the housing and flat
stator integrated with the cover plate according to the second
embodiment of the air processing device for the present
invention.
[0025] FIG. 8 is a perspective view showing a design option
according to the preferred embodiment of the air processing device
when intake opening coincides with one of the side part of the
casing.
[0026] FIG. 9 is an exploded view showing a design option of the
air processing device according FIG. 8.
[0027] FIG. 10 is a perspective view showing the third embodiment
of the air processing device for the present invention when at
least one guide vane integrated with the cover plate.
[0028] FIG. 11 is a perspective view showing the third embodiment
of the air processing device for the present invention when the
cover plate is turned along the edge for better illustrative
view.
[0029] FIGS. 12 and 12A are two variants of section view along
radial direction of the region A from FIG. 11.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0030] Preferred embodiment of the present invention will be
described in detail below with reference to the accompanying
drawings.
[0031] FIGS. 1-12A show embodiments of the present invention.
[0032] A thin air processing device 1 for heat ventilation air
conditioning system comprises a housing 2 and located inside a
blower 3, an air processing unit 4 and a controller unit 5. The
housing 2 comprises a cover plate 6, a base 7 and side parts 8. The
blower 3 comprises a casing 9, a drum type impeller 10, an electric
drive 11 with a flat stator 12 and a magnetized rotor 13, and an
axle 14 fixed perpendicularly to the base 7. The casing 9 comprises
an inlet 15, a central part 16 and an outlet 17 and integrated with
the housing 2 thus a volute shape 18 of the casing 9 formed by the
side parts 8. The impeller 10 placed at the central part 16 and
comprises blades 19 attached to a backplate 20 and a shroud 21, and
circumferential arrayed magnetic means 22 at the peripheral part of
the impeller 10, thus serves as the magnetized rotor 13. The flat
stator 12 comprises circumferential arrayed coils 23 with magnetic
axes coincide with a plane of the flat stator 12 and integrated
with the housing 2. The magnetic means 22 placed and magnetized
along the plane of the flat stator 12 thus magnetic axes of the
coils 23 and the magnetic means 22 located at the plane of the flat
stator 12 substantially. The air processing unit 4 located at the
inlet 15 of the casing 9 and comprises an intake 25 and an outtake
26 openings, so air flows through the intake opening 25, the air
processing unit 4, the outtake opening 26, the inlet 15, the
impeller 10 and the outlet 17 in a series way, thus the blower 3 is
a crossflow type blower.
[0033] The casing 9 further comprises two volute tongues 27 and 27A
divided the impeller circumference on an inlet 28 and an outlet 29
arcs thus the inlet arc 28 is within 90-130 degrees and the outlet
arc 29 is within 140-230 degrees (FIG. 4).
[0034] The preferred embodiment according to the present invention
comprises the blower 3 with at least one guide vane 30 surrounded
by the impeller 10 and integrated with the base 7, so air flows
through the intake opening 25, the air processing unit 4, the
outtake opening 26, the inlet 15, the blades 19, the guide vane 30,
the blades 19 again and the outlet 17 in a series way. The flat
stator 12 integrated with the base 7 while the magnetic means 22
integrated with the shroud 21.
[0035] According to the second embodiment of the present invention
the flat stator 12 integrated with the cover plate 6 while the
magnetic means 22 integrated with the backplate 20.
[0036] There are two design options according to both embodiments.
The first design option (FIGS. 1-7) realizes an aerodynamic scheme
when ambient air goes to the intake opening 25 of the air
processing unit 4 in direction perpendicular to the cover plate 6,
while the second design option (FIGS. 8-9) realizes the aerodynamic
scheme when ambient air goes to the corresponding intake opening 25
from side in direction parallel to the cover plate 6.
[0037] According to the third embodiment of the present invention
(FIGS. 11-12A) at least one guide vane 30 integrated with the cover
plate 7. Ambient air in this case goes to the intake opening 25
from side in direction parallel to the cover plate 6. Unlike the
previous embodiments the backplate 20 located closer to the base 7
than shroud 21. The detailed mutual layout of components of the
electric drive 11 is shown on FIGS. 12 and 12A. The coils 23 are
integrated with the base 7 while magnetic means 22 are integrated
with the backplate 20 by supporting ring 24 and retaining ring 35.
The variant design shown on FIG. 12A differs from design shown on
FIG. 12 by the conical upper surface 36 of the backplate 20 and may
be used in extremely slim design of air processing device 1
according to the present invention.
[0038] According to all embodiments and variant designs the air
processing unit 4 may be made like air purifier 32 and/or
humidifier 34 and/or may comprises the temperature regulating means
33.
[0039] The air processing device 1 for HVAC systems operates in the
following way. When an electric power supplied to the flat stator
12 of the electric drive 11, the alternative electro-magnetic field
is created. This electro-magnetic field controlled by the
controllers (not shown on Figs.) interacts with a magnetic field
created by the magnetized rotor 13. In result of this interaction
the magnetized rotor 13 and, therefore the impeller 10 of the
blower 3, starts to rotate. Ambient air starts moving and flow
through the air processing unit 4 and the crossflow blower 3 thus
regulating temperature, humidity and quality of indoor air. The
controller unit 5 regulates volume and all mentioned parameters of
ambient air.
[0040] Therefore, the air processing device 1 due to the mutual
arrangement of the crossflow blower 3 with impeller 10 parallel to
the base 7 of the housing 2 according to the present invention
provides a thin, compact, high efficient, simple, reliable and less
expensive air processing device that can easily mounting at the
wall.
[0041] While the invention has been described with reference to
various embodiments, it will be understood that these embodiments
are only illustrative that the scope of invention is not limited to
them. Many variations, modifications and improvements of the
embodiments described are possible. Variations and modifications of
the embodiments disclosed herein may be made based on description
set forth herein, without departing from the scope and spirit of
the invention as set forth in the following claims.
* * * * *