U.S. patent application number 17/131113 was filed with the patent office on 2021-04-15 for automobile charger.
The applicant listed for this patent is Pilot Inc.. Invention is credited to Calvin Shiening Wang, Chung-Hsin Wang.
Application Number | 20210107365 17/131113 |
Document ID | / |
Family ID | 1000005300339 |
Filed Date | 2021-04-15 |
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United States Patent
Application |
20210107365 |
Kind Code |
A1 |
Wang; Calvin Shiening ; et
al. |
April 15, 2021 |
AUTOMOBILE CHARGER
Abstract
A novel automobile charger comprises a direct current (DC)
voltage supply, wherein a positive pole of the (DC) voltage supply
is connected with a first end or a first lead of a DC-to-DC module,
a first end of a battery voltage detection module and a first end
of a load module simultaneously, while a negative pole of the DC
voltage supply is connected with a second end of the DC-to-DC
module, a first end of a microcontroller, a first end of an
automobile start control module and a second end of the battery
voltage detection module simultaneously. A third end of the
DC-to-DC module is connected with a second end of the
microcontroller. Third, fourth and fifth ends of the
microcontroller are connected with a third end of the battery
voltage detection module, a second end of the automobile start
control module and a first end of a load detection module
respectively. A second end of the load detection module is
connected with a third end of the automobile start control module
and a second end of the load module simultaneously.
Inventors: |
Wang; Calvin Shiening; (City
of Industry, CA) ; Wang; Chung-Hsin; (Shenzhen,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Pilot Inc. |
City of Industry |
CA |
US |
|
|
Family ID: |
1000005300339 |
Appl. No.: |
17/131113 |
Filed: |
December 22, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
16404321 |
May 6, 2019 |
10875410 |
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17131113 |
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|
15923219 |
Mar 16, 2018 |
10328806 |
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16404321 |
|
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|
15355409 |
Nov 18, 2016 |
10046653 |
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15923219 |
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14569352 |
Dec 12, 2014 |
9525297 |
|
|
15355409 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H02J 7/0068 20130101;
H02J 9/005 20130101; H02J 2207/20 20200101; H02J 7/0029 20130101;
H02J 7/0034 20130101; B60L 53/00 20190201; B60L 53/53 20190201 |
International
Class: |
B60L 53/00 20060101
B60L053/00; B60L 53/53 20060101 B60L053/53; H02J 7/00 20060101
H02J007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 28, 2014 |
CN |
201420212173.5 |
Claims
1-6. (canceled)
7. A jumpstarter device, comprising: a power supply connected to a
microcontroller via a voltage regulator; a power supply voltage
detector, connected to the microcontroller, to detect a power
supply voltage; a load detector, connected to the microcontroller,
to detect a connection to an automobile battery, wherein the
microcontroller generates an output signal based on a detected
power supply voltage in response to a detected connection;
switching circuitry including a plurality of MOSFETs to selectively
connect a terminal of the power supply to the automobile battery
when the microcontroller generates the output signal, such that the
power supply supplies a charging current to the automobile battery;
and a boost device for boosting a gate voltage of the plurality of
MOSFETs.
8. The jumpstarter device of claim 7, the voltage regulator
comprising a voltage stabilizer connected to a resistor, a
capacitor, and the microcontroller.
9. The jumpstarter device of claim 7, wherein the load detector
comprises a resistor in parallel with a capacitor, the resistor and
capacitor connected to the microcontroller.
10. The jumpstarter device of claim 7, wherein the microcontroller
comprises a plurality of ports, the ports including a power supply
port, a ground port, an output signal port, and a switching
circuitry port.
11. The jumpstarter device of claim 7, wherein the switching
circuitry is connected to the microcontroller via the boost device,
and the plurality of MOSFETs are connected in parallel.
12. The jumpstarter device of claim 7, wherein the microcontroller:
generates the output signal to cause the switching circuitry to
connect the power supply to the automobile battery when the
automobile battery is properly connected and the detected power
supply voltage is above a threshold; and generates the output
signal to cause the switching circuitry to disconnect the power
supply from the automobile battery when i) the detected power
supply voltage is below the threshold, or ii) the automobile
battery is improperly connected.
13. The jumpstarter device of claim 7, wherein the microcontroller
causes the switching circuitry to disconnect the power supply from
the automobile battery when the automobile battery has a higher
voltage than the power supply.
14. The jumpstarter device of claim 7, wherein the output signal
causes the switching circuitry to disconnect the power supply from
the automobile battery to prevent recharging of the power supply by
the automobile battery.
15. The jumpstarter device of claim 7, wherein the voltage
regulator is a direct-current to direct-current (DC-DC)
converter.
16. The jumpstarter device of claim 7, wherein the load detector
prevents improper user operation of the jumpstarter device.
17. The jumpstarter device of claim 7, wherein the load detector
detects a reversed polarity condition.
18. The jumpstarter device of claim 7, wherein the load detector is
connected to a negative terminal of the plurality of MOSFETs.
19. The jumpstarter device of claim 7, further comprising one or
more light emitting diodes (LEDs) controlled by the
microcontroller.
20. The jumpstarter device of claim 7, wherein a portion of the
load detector is connected in parallel with the plurality of
MOSFETs.
21. The jumpstarter device of claim 7, wherein the microcontroller
causes the device to enter a standby mode when a voltage of the
power supply is less than 9V and allows operation when the voltage
of the power supply is greater than 10V.
22. A method for a device to charge an automobile battery
comprising: detecting a voltage level of a power supply; detecting
a connection and a type of connection between the power supply and
the automobile battery; generating, by a microcontroller receiving
power from the power supply, an output signal based on the voltage
level of the power supply, the connection to the automobile battery
and the type of connection of the automobile battery; based on the
output signal, selectively connecting the power supply to the
automobile battery by activating a plurality of MOSFETs; and based
on the output signal, selectively disconnecting the power supply
from the automobile battery to prevent damage caused by
over-discharging of the power supply.
23. The method of claim 22, wherein a boost device boosts the gate
voltage of the plurality of MOSFETs.
24. The method of claim 23, wherein: the type of connection of the
automobile battery is a correct polarity connection or an incorrect
polarity connection.
25. The method of claim 24, wherein the output signal: causes the
plurality of MOSFETs to connect the power supply to the automobile
battery when the type of connection is a correct polarity
connection and the voltage level of the power supply is above a
threshold; and cause the plurality of MOSFETs to disconnect the
power supply from the automobile battery when i) the level of the
power supply is below the threshold, or ii) the type of connection
is an incorrect polarity connection.
26. A system for jumpstarting an automobile battery comprising: a
power supply; means for detecting a voltage level of the power
supply; means for detecting whether a connection with an automobile
battery is a correct polarity connection or an incorrect polarity
connection; a microcontroller configured to generate an output
signal based on the voltage level of the power supply and whether
the connection with the automobile battery is a correct polarity
connection or an incorrect polarity connection; and means for
selectively enabling current to flow from the power supply to the
automobile battery based on the output signal; and a boost device
for boosting a voltage associated with the means for selectively
enabling current to flow from the power supply to the automobile
battery based on the output signal.
Description
RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 16/404,321, filed on May 6, 2019 and entitled
"Automobile Charger," which is a continuation of U.S. patent
application Ser. No. 15/923,219, filed on Mar. 16, 2018 and
entitled "Automobile Charger," which is a continuation of U.S.
patent application Ser. No. 15/355,409, filed on Nov. 18, 2016 and
entitled "Automobile Charger," now U.S. Pat. No. 10,046,653, which
is a continuation of U.S. patent application Ser. No. 14/569,352,
filed on Dec. 12, 2014 and entitled "Automobile Charger," now U.S.
Pat. No. 9,525,297, which claims the benefit of priority of Chinese
application no. 201420212173.5 filed on Apr. 28, 2014, the entire
contents of all of which are incorporated herein by reference.
BACKGROUND
[0002] The present disclosure relates to an automobile charging
device, in particular relates to a novel automobile charger with a
safe power supply charging quickly.
[0003] Automobile charging is a big issue of traveling by
automobile for those automobile fans and businessmen, the maturity
of the technology thereof is one of the critical factors
restricting the application of the automobile charger. However,
current automobile chargers have common problems of not able to
automatically detect whether a load is connected, whether an
electrode is connected with an automobile storage battery
reversely, whether an automobile engine or the storage battery has
a reverse current, whether the battery state is suitable for heavy
current power generation and so on. Accordingly, the present
disclosure provides a novel automobile charger with the safe power
supply charging quickly to solve the problems mentioned above, thus
making the automobile charging safe, quick, mature and
propagable.
SUMMARY
[0004] A purpose of the present disclosure aims to provide a novel
automobile charger with the safe power supply charging quickly, in
order to solve the problems presented in the above background.
[0005] To achieve the purpose described above, the present
disclosure provides the following technical solutions: a novel
automobile charger comprises a direct current power supply, wherein
a positive pole of the direct current power supply is connected
with one end of a DC to DC module, one end of a battery voltage
detection module and one end of a load module simultaneously, while
a negative pole of the direct current voltage is connected with the
other end of the DC to DC module, one end of a micro controller,
one end of an automobile start control module and the other end of
the battery voltage detection module simultaneously. A third end of
the DC to DC module is connected with the other end of the
microcontroller, and the other three ends of the microcontroller
are connected with the third end of the battery voltage detection
module, the other end of the automobile start control module and
one end of the load detection module respectively, wherein the
other end of the load detection module is connected with the third
end of the automobile start control module and the other end of the
load module simultaneously; the load module which comprises the
automobile storage battery and the automobile engine is located on
the end of the load module.
[0006] As a further solution of the present disclosure that: the DC
to DC module provides a stable voltage for the microcontroller
which collects relevant data to conduct the corresponding control.
The battery voltage detection module conducts the measurement of
the batter voltage, the automobile start control module conducts
the power supply or the power outage for the load module through
the microcontroller, and the load detection module which comprises
the automobile storage battery or the automobile engine detects
whether the load module is correctly connected.
[0007] As a further solution of the present disclosure that: the
circuit employs an electronic switch to supply power to the load
module, which can offer more protection for the product, or reduce
the product size and the material cost.
[0008] As a further solution of the present disclosure that: the
battery voltage detection module provides protection for the power
supply battery to prevent damages caused by the discharging of the
direct current power supply.
[0009] As a further solution of the present disclosure that: the
load detection module prevents improper operations of the user.
[0010] As a further solution of the present disclosure that: in the
standby mode, the microcontroller closes all outputs when the
voltage of the direct current power supply is lower than that of
the state being able to supply power and then recovers when it is
higher than that of the state being able to supply power.
[0011] As a further solution of the present disclosure that: the
automobile start control module is the electronic switch.
[0012] Compared to the prior art, the present disclosure has the
beneficial effects that:
[0013] 1. The present disclosure employs the electronic switch to
control the supply power for the load, this part can offer more
protection for the product, and reduce the product size and the
material cost.
[0014] 2. The battery detection of the present disclosure can
provide low voltage protection to prevent damages caused by the
over discharging of the battery.
[0015] 3. The load detection of the present disclosure can prevent
improper operations by the user, such as reversed polarity, which
causes damages to the automobile or the direct current power
supply.
[0016] 4. The present disclosure employs the voltage backflow
protection for abnormal load, wherein the automobile start line is
closed to protect the battery when the abnormal voltage is
detected.
[0017] 5. The present disclosure has a fast charging function, and
can be installed fixedly or moved portably according to the use
requirements of people.
[0018] 6. The automatic detection module of the present disclosure
can automatically detects whether the load is connected, whether
the electrode is connected with the automobile storage battery
reversely, whether the automobile engine or the storage battery has
reverse current, whether the battery state is suitable for heavy
current power generation, thereby protecting the load and the
circuit and thus has complete functions.
BRIEF DESCRIPTION OF DRAWINGS
[0019] FIG. 1 is a block diagram for the principle of the emergency
power supply of the safe intelligent automobile;
[0020] FIG. 2 is a circuit diagram for the emergency power supply
of the safe intelligent automobile.
[0021] In figures: 1-DC to DC module, 2-microcontroller, 3-battery
voltage detection module, 4-automobile start control module, 5-load
detection module, 6-load module, 7-direct current power supply.
DETAILED EMBODIMENTS
[0022] The technical solutions of the present disclosure will be
described more clearly and fully in conjunction with drawings in
the embodiments of the present disclosure, and obviously, the
described embodiments are merely a part of the embodiments of the
present disclosure, not all the embodiments. Based on the
embodiments of the present disclosure, all the other embodiments
obtained by the ordinary skilled in the art without creative labors
belong to the scope claimed by the present disclosure.
[0023] Refer to FIG. 1, a novel automobile charger comprises a
direct current power supply, wherein the positive pole of the
direct current power supply is connected with one end or lead of
the DC to DC module, one end of the battery voltage detection
module and one end of the load module simultaneously, while the
negative pole of the direct current voltage is connected with the
other end of the DC to DC module, one end of the microcontroller,
one end of the automobile start control module and the other end of
the battery voltage detection module simultaneously. A third end of
the DC to DC module is connected with the other end of the
microcontroller, and the other three ends of the microcontroller
are connected with the third end of the battery voltage detection
module, the other end of the automobile start control module and
one end of the load detection module respectively, wherein the
other end of the load detection module is connected with the third
end of the automobile start control module and the other end of the
load module simultaneously; the load module which comprises the
automobile storage battery and the automobile engine is located on
the end of the load module.
[0024] Refer to FIG. 2, the DC to DC module comprises a diode D1, a
resistor R1, capacitor C1, a HT7530 voltage stabilizing tube,
capacitors C2 and C3, wherein the positive pole of the diode D1 is
connected with the positive pole of the battery, the negative pole
of the diode D1 is connected with one end of the capacitor C1 and
an IN port of the HT7530 voltage stabilizing tube simultaneously
through the resistor R1, and an OUT port of the HT7530 voltage
stabilizing tube is connected with one end of the capacitor C2, one
end of the capacitor C3 and a VDD port of the microcontroller U2,
while the other end of the capacitor C1, the other end of the
capacitor C2 and the other end of the capacitor C3 as well as a GND
port of the HT7530 voltage stabilizing tube are grounded and
connected with the negative pole of the battery simultaneously; a
R1 port of the microcontroller U2 is connected with the negative
pole of the battery through a light-emitting diode L1 and a
resistor R12 which are in series connection, a B1 port of the
microcontroller U2 is connected with a EN port of the automobile
start control module, a V0 port of the microcontroller U2 is
connected with the negative pole of the battery through a capacitor
C4 and a resistor R7 which are in parallel connection, the V0 port
is also connected with the VDD port through a slide rheostat RT, a
V1 port of the microcontroller U2 is also connected with the
negative pole of the battery through a resistor 10, a capacitor C6
and a resistor R13 which are in parallel connection, the V1 port is
connected with the positive pole of the battery through a resistor
R2, and is also connected with the negative pole of the automobile
storage battery and the automobile engine simultaneously through a
resistor R9, wherein two ends of the automobile storage battery are
in parallel connection with the capacitor C7, resistors R9, 10, a
capacitor C6 and a resistor R13 to form the load detection module
together, a V4 port of the microcontroller U2 is grounded through a
capacitor C5, a VSS port of the microcontroller U2 and one end of
the capacitor C4 are grounded simultaneously. The other end of the
capacitor C4 is connected with the VDD port of the microcontroller
U2, the resistors R2, R13 and capacitor C6 form the battery voltage
detection module together, and a Drive port of the automobile start
control module is connected with the automobile engine and one end
of a resistor R14 simultaneously, wherein the other end of the
resistor R14 is grounded.
[0025] The EN port of the automobile start control module is
positioned on a boost device, which provides a gate-source voltage
to a plurality of N-channel MOSFETs Q3_1, Q3_2, Q3_3, Q4_1, Q4_2,
Q4_3, which are connected in parallel pairs.
[0026] The DC to DC module in the present disclosure provides the
stable voltage for the microcontroller which collects relevant data
to conduct the corresponding control. The battery voltage detection
module conducts the measurement of the batter voltage, and the
automobile start control module conducts the power supply or the
power outage for the load module through the microcontroller,
wherein the load detection module detects whether the load module
is correctly connected.
[0027] The microcontroller in the present disclosure determines
whether the automobile storage battery is connected with the
automobile engine through the load detection module, wherein the
automobile start control model is automatically activated and the
battery starts to supply power to the load module when the load is
correctly connected; the automobile start control model is
automatically deactivated and the battery stops supplying power to
the load module when assuming that the load is not connected or the
positive and negative polarities are reversely connected. In the
standby mode, the microcontroller closes all outputs when the
battery voltage is lower than 9V, and recovers the normal operation
only when the battery voltage is larger than 10V; the automobile
engine will generate the normal voltage to recharge the battery
after the automobile starts, whereas the automobile start control
module is deactivated immediately once the recharging voltage is
larger than the voltage before that battery starts the power
supply, to protect the battery from damages caused by charging with
the normal voltage; the automobile start control module is the
electronic switch, which can prevent the load from being reversely
connected and recharging of the normal voltage, thus protecting the
battery and prolonging lifespan.
[0028] The automobile engine will generate abnormal voltage to
recharge the direct current power supply after the automobile
starts, and the automobile start control module is deactivated
immediately once the recharging voltage is larger than the voltage
before the direct current power supply starts the power supply, to
protect the direct current power supply from damages caused by
charging with normal voltage charge.
[0029] It is obvious for the skilled people in the art that the
present disclosure is not merely limited to the details of the
above exemplary embodiments, and the present disclosure can be
implemented in other specific forms without departing from the
sprits or the basic features of the present disclosure. Thus, no
matter to consider from which point of view, the embodiments should
be considered as exemplary and non-limiting. The scope of the
present disclosure is defined by the accompanying Claims rather
than the above description, therefore it is intended that all the
changes fallen within the meanings and scope of the equivalent
elements of the Claims are contained in the present disclosure. Any
drawing reference in the Claims should not be regarded as limiting
the Claims involved.
[0030] Furthermore, it should be understood that although the
specification is described according to the embodiments, but not
every embodiment includes only an independent technical solution,
this manner of description for the specification is only for
clarity, therefore the skilled people in the art should take the
Specification as a whole, and the technical solutions in various
embodiments can be combined appropriately to form other
implementations understandable for those skilled in the art.
* * * * *