CN206908328U - A kind of energy storage charging-discharging controller with dual control heating function - Google Patents
A kind of energy storage charging-discharging controller with dual control heating function Download PDFInfo
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- CN206908328U CN206908328U CN201720632273.7U CN201720632273U CN206908328U CN 206908328 U CN206908328 U CN 206908328U CN 201720632273 U CN201720632273 U CN 201720632273U CN 206908328 U CN206908328 U CN 206908328U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of energy storage charging-discharging controller with dual control heating function, including charging-discharging controller（1）, lithium battery（2）And solar cell（3）, lithium battery（2）On be fitted with heating plate（4）；The charging-discharging controller（1）Including general charging circuit（11）, temperature measurement circuit（12）, MCU main control circuits（13）, heating plate control circuit（14）With heating power supply selection circuit（15）；The temperature measurement circuit（12）Connect MCU main control circuits（13）Thermometric input, temperature measurement circuit（12）Temperature probe fit in lithium battery（2）Surface；The heating plate（4）Both ends connection heating plate control circuit（14）, lithium battery（2）And solar cell（3）Connection heating power supply selection circuit（15）, heating plate control circuit（14）With heating power supply selection circuit（15）Connect MCU main control circuits（13）.The drawbacks of overcoming prior art the utility model has the advantage of it, novelty reasonable in design.
Description
Technical field
It the utility model is related to a kind of energy storage charging-discharging controller, and in particular to a kind of energy storage with heating function can fill
Discharge controller.
Background technology
" lithium battery ", be it is a kind of by lithium metal or lithium alloy be negative material, the battery using non-aqueous electrolytic solution.With
The development of science and technology, present lithium battery has become main flow.Lithium ion battery is with its distinctive performance advantage just
Take in formula electrical equipment such as laptop computer, video camera, mobile communication and be widely used.The high capacity lithium ion battery of exploitation is in electricity
Start to try out in electrical automobile, it is contemplated that by one of major impetus power supply as 21 century electric automobile, and will be in artificial satellite, boat
It is applied in terms of empty space flight and energy storage.With the pressure of the environmental protection aspect in the in short supply and world of the energy.Lithium electricity is widely used
In the appearance of electric car industry, particularly LiFePO4 and ternary material battery, the development of lithium battery industry is more promoted and has answered
With.But due to the chemical characteristic of lithium battery so that lithium battery efficiency for charge-discharge at low ambient temperatures, life-span, security etc.
There is significant impact.
Solar energy-lithium energy streetlight charging-discharging controller is not perfect for lithium battery low-temperature heat function at present；Particularly
Avenged for the long-term extremely low gentle the moon such as northeast, Tibet in weather environment, the bar once continuous more days solar panels do not generate electricity
Part；It is in after lithium battery power shortage under the low temperature environment of pole；Electricity only can be just re-filled after battery temperature raises with environment temperature
Stream, causes whole low temperature season can not normal use.In low temperature environment, using the single control heating mode in lithium battery power supply pond, work as electricity
Battery temperature after pond is under-voltage after the power supply of heating is lost if can not charging in time constantly reduces, if (because of electricity when being spent less than -15
Pond composition difference), recover the generating capacity of solar panel, can not also charge；The season of whole low temperature will be unable to just
Often use.In low temperature environment, the single control heating mode of battery is supplied using solar panel, only having daytime during charging ability to open
Dynamic heating function, once after solar panel can not generate electricity because of without sunlight or accumulated snow, lose the battery temperature after heating power supply
Degree constantly reduces, and (because of battery composition difference) if spent less than -15, recovers the generating capacity of solar panel, also without
Method charges；The season of whole low temperature will be unable to normal use.
Utility model content
In view of the deficienciess of the prior art, technical problem to be solved in the utility model is to provide one kind with double
The energy storage charging-discharging controller of heating function is controlled, using dual control mode, in low temperature environment, when solar cell has generating capacity
Preferentially heated using solar cell for supplying power, use lithium battery intelligently to be saved as power supply source when solar cell is without generating capacity
Can power supply heating；After battery power shortage, charged afterwards as long as possessing power generation conditions and then first heating, battery has been effectively ensured in suitable ring
Discharge and recharge at a temperature of border, it is ensured that the normal use of product.
It is a kind of with dual control heating function in order to solve the above technical problems, the utility model adopts the technical scheme that
Energy storage charging-discharging controller, including charging-discharging controller (1), lithium battery (2) and solar cell (3), lithium battery are bonded on (2)
There is heating plate (4)；The charging-discharging controller (1) includes general charging circuit (11), temperature measurement circuit (12), MCU main controls electricity
Road (13), heating plate control circuit (14) and heating power supply selection circuit (15)；The temperature measurement circuit (12) connects MCU master controls
The thermometric input of circuit (13) processed, the temperature probe of temperature measurement circuit (12) fit in the surface of lithium battery (2)；The heating plate
(4) both ends connection heating plate control circuit (14), lithium battery (2) and solar cell (3) connection heating power supply selection circuit
(15), heating plate control circuit (14) and heating power supply selection circuit (15) connection MCU main control circuits (13).
Optimization, the above-mentioned energy storage charging-discharging controller with dual control heating function, the temperature measurement circuit (12) includes heat
Quick resistance one (37), thermistor two (39), ceramic disc capacitor one (21), ceramic disc capacitor two (22), resistance 12 (38), resistance ten
(40), thermistor one (37), thermistor two (39) fit in lithium battery (2) surface, MCU main control circuits (13)
ADC-NTC ends connect 5V power supplys by thermistor one (37), are series at after resistance 12 (38), ceramic disc capacitor one (21) are in parallel
Between the ADC-NTC ends of MCU main control circuits (13) and earth terminal；2nd ADC-NTC ends of MCU main control circuits (13) lead to
Thermistor two (39) connection 5V power supplys are crossed, MCU main control circuits are series at after resistance ten (40), ceramic disc capacitor two (22) are in parallel
(13) between the 2nd ADC-NTC ends and earth terminal.
Optimization, the above-mentioned energy storage charging-discharging controller with dual control heating function, the heating plate control circuit (14)
Including LM358 operational amplifiers (51), N-channel MOS pipe (52), diode 21 (57), resistance 11 (90), resistance two
(82), resistance three (83), resistance four (84), resistance five (85), resistance six (86), thermistor three (81), electric capacity three (23)；Institute
The second pin of one end connection LM358 operational amplifiers (51) of thermistor three (81) is stated, the other end connects 10 volts of voltages, heat
Quick resistance three (81) fits in the surface of lithium battery (2)；One end connection LM358 operational amplifiers (51) of resistance three (83)
3rd pin, the other end connect 10 volts of voltages；The second pin of LM358 operational amplifiers (51), resistance four (84), resistance two
(82), the second pin of LM358 operational amplifiers (51) is sequentially connected in series；8th pin of the LM358 operational amplifiers (51)
By being grounded in electric capacity three (23) equipment, it is grounded in the 4th multi-pin device of LM358 operational amplifiers (51)；The resistance five
(85) connected with after resistance six (86) parallel connection with the G poles of N-channel MOS pipe (52), the end connection LM358 computings of resistance five (85)
First pin of amplifier (51), the 4th pin of the end connection LM358 operational amplifiers (51) of resistance six (86)；The N
4th pin of the S poles connection LM358 operational amplifiers (51) of channel MOS tube (52)；The diode 21 (57) and electricity
It is connected after hindering 11 (90) parallel connection with the D poles of N-channel MOS pipe (52).
Optimization, the above-mentioned energy storage charging-discharging controller with dual control heating function, the heating plate (4) is parallel to two poles
Guan Ershi mono- (57) both ends, the positive pole connection supply voltage of diode 21 (57).
Optimization, the above-mentioned energy storage charging-discharging controller with dual control heating function, the resistance 11 (90) is in series with
One light emitting diode (95).
Optimization, the above-mentioned energy storage charging-discharging controller with dual control heating function, the heating power supply selection circuit
(15) diode 18 (53), diode 19 (54), voltage-regulator diode 20 (55), resistance seven (87), resistance 12 are included
(88), resistance nine (89), N-channel MOS pipe two (56), electric capacity four (24)；The voltage-regulator diode 20 (55) and electric capacity four
(24) both ends of parallel circuit are connected with resistance seven (87) and diode 19 (54) respectively after parallel connection, and the one of resistance seven (87)
The positive source and supply voltage of end connection solar cell (3)；The resistance 12 (88), the G of N-channel MOS pipe two (56)
Pole, the D poles of N-channel MOS pipe two (56), resistance nine (89) are sequentially connected in series, and the colelctor electrode of diode 18 (53) passes through electric capacity four
(24) 10V power supplys, the S poles of the emitter stage connection N-channel MOS pipe two (56) of diode 18 (53) are connected；The resistance nine
(89) the WARM-EN ends of MCU main control circuits (13) are connected, the D poles of N-channel MOS pipe two (56) are connected by resistance 12 (88)
Connect the negative pole of lithium battery (2) and connect the earth terminal of MCU main control circuits (13), the emitter stage connection of diode 19 (54) is too
The negative pole of positive energy battery (3).
The technical scheme of the application is different from only with the single control heating mode of lithium battery power supply or supplied only with solar energy
The single control heating mode of electricity.The technical scheme dual control mode of the application, in low temperature environment, when solar cell has generating capacity
Preferentially heated using solar cell for supplying power, use lithium battery intelligently to be saved as power supply source when solar cell is without generating capacity
Can power supply heating；After battery power shortage, charged afterwards as long as possessing power generation conditions and then first heating, battery has been effectively ensured in suitable ring
Discharge and recharge at a temperature of border, it is ensured that the normal use of product.General charging circuit (11) in the application uses to be made in the prior art
The universal charging-discharging controller of rechargeable battery, above-mentioned working condition detect it and can be achieved, will not be repeated here.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of temperature measurement circuit of the present utility model；
Fig. 3 is the structural representation of heating power supply selection circuit of the present utility model；
Fig. 4 is the structural representation of heating plate control circuit of the present utility model.
Embodiment
The technical characterstic of the present invention is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
The utility model is a kind of energy storage charging-discharging controller with dual control heating function, including charging-discharging controller
(1), lithium battery (2) and solar cell (3), heating plate (4) is fitted with lithium battery (2)；Charging-discharging controller (1) bag
General charging circuit (11), temperature measurement circuit (12), MCU main control circuits (13), heating plate control circuit (14) and heating is included to supply
Electric selection circuit (15)；The thermometric input of temperature measurement circuit (12) the connection MCU main control circuits (13), temperature measurement circuit (12)
Temperature probe fit in the surfaces of lithium battery (2)；The both ends connection heating plate control circuit (14) of the heating plate (4), lithium
Battery (2) and solar cell (3) connection heating power supply selection circuit (15), heating plate control circuit (14) and heating power supply
Selection circuit (15) connection MCU main control circuits (13).
The temperature measurement circuit (12) includes thermistor one (37), thermistor two (39), ceramic disc capacitor one (21), ceramics
Electric capacity two (22), resistance 12 (38), resistance ten (40), thermistor one (37), thermistor two (39) fit in lithium battery
(2) surface, the ADC-NTC ends of MCU main control circuits (13) connect 5V power supplys, resistance 12 by thermistor one (37)
(38) it is series at after, ceramic disc capacitor one (21) is in parallel between ADC-NTC ends and the earth terminal of MCU main control circuits (13)；MCU master
2nd ADC-NTC ends of control circuit (13) connect 5V power supplys, resistance ten (40), ceramic disc capacitor two by thermistor two (39)
(22) it is series at after parallel connection between the 2nd ADC-NTC ends and the earth terminal of MCU main control circuits (13).
The heating plate control circuit (14) includes LM358 operational amplifiers (51), N-channel MOS pipe (52), diode two
11 (57), resistance 11 (90), resistance two (82), resistance three (83), resistance four (84), resistance five (85), resistance six (86),
Thermistor three (81), electric capacity three (23)；The of one end connection LM358 operational amplifiers (51) of the thermistor three (81)
Two pins, the other end connect 10 volts of voltages, and thermistor three (81) fits in the surface of lithium battery (2)；The one of resistance three (83)
3rd pin of end connection LM358 operational amplifiers (51), the other end connect 10 volts of voltages；LM358 operational amplifiers (51)
Second pin, resistance four (84), resistance two (82), the second pin of LM358 operational amplifiers (51) are sequentially connected in series；It is described
8th pin of LM358 operational amplifiers (51) is by being grounded in electric capacity three (23) equipment, and the of LM358 operational amplifiers (51)
It is grounded in four multi-pin devices；Connected after the resistance five (85) is in parallel with resistance six (86) with the G poles of N-channel MOS pipe (52), electricity
Hinder the first pin of the end connection LM358 operational amplifiers (51) of five (85), the end connection LM358 fortune of resistance six (86)
Calculate the 4th pin of amplifier (51)；The 4th of the S poles connection LM358 operational amplifiers (51) of the N-channel MOS pipe (52)
Pin；It is connected after the diode 21 (57) is in parallel with resistance 11 (90) with the D poles of N-channel MOS pipe (52).
The heating plate (4) is parallel to the both ends of diode 21 (57), the positive pole connection of diode 21 (57)
Supply voltage.
The resistance 11 (90) is in series with a light emitting diode (95).
The heating power supply selection circuit (15) includes diode 18 (53), diode 19 (54), voltage-regulator diode
20 (55), resistance seven (87), resistance 12 (88), resistance nine (89), N-channel MOS pipe two (56), electric capacity four (24)；It is described
After voltage-regulator diode 20 (55) is in parallel with electric capacity four (24) both ends of parallel circuit respectively with resistance seven (87) and diode ten
Nine (54) are connected, the positive source and supply voltage of one end connection solar cell (3) of resistance seven (87)；The resistance 12
(88), the G poles of N-channel MOS pipe two (56), the D poles of N-channel MOS pipe two (56), resistance nine (89) are sequentially connected in series, diode ten
The colelctor electrode of eight (53) connects 10V power supplys, the emitter stage connection N-channel MOS of diode 18 (53) by electric capacity four (24)
The S poles of pipe two (56)；The WARM-EN ends of resistance nine (89) the connection MCU main control circuits (13), N-channel MOS pipe two
(56) D poles connect the negative pole of lithium battery (2) by resistance 12 (88) and connect the earth terminal of MCU main control circuits (13),
The negative pole of the emitter stage connection solar cell (3) of diode 19 (54).
LM358 operational amplifiers (51) use as comparator, when thermistor three (81) resistance>(now lithium electricity during 20K
Pond (2) temperature is less than -10 degree), the first pin output high level of LM358 operational amplifiers (51), N-channel MOS pipe (52) is led
It is logical, heating plate (4) ON operation.Conversely, heating plate (4) disconnects, stop heating.
In figure：VBAT connects the positive pole of solar energy and lithium battery, and CHGM connects the negative pole of solar energy, and GND is the negative pole of lithium battery；
JRM and JRP is the two poles of the earth of heating wire.
Lithium battery heating heating operation is divided into three kinds of states：
State 1：During daytime, lithium battery (2) is in charged state, and lithium battery (2) is if can not power.When lithium battery (2) temperature
When degree is less than 10 degree, the first pin driving N-channel MOS pipe (52) of LM358 operational amplifiers (51) makes the heating of lithium battery (2)
Piece (4) is in warm-up mode, and lithium battery (2) temperature rises to more than 10 degree and then stops heating.
State 2, during daytime, lithium battery (2) is in charged state, and lithium battery (2) is if can power, the MCU of master controller
Normal work, when lithium battery (2) temperature is less than 10 degree, MCU main control circuits (13) control the high electricity of its WARMEN_EN pin output
It is flat, N-channel MOS pipe two (56) conducting, the negative pole of the equivalent lithium battery (2) of negative pole of solar cell (3)；Solar cell (3)
And lithium battery (2) is powered jointly, the first pin driving N-channel MOS pipe (52) of LM358 operational amplifiers (51) makes lithium battery (2)
Heating plate (4) be in warm-up mode, lithium battery (2) temperature rises to more than 10 degree and then stops heating.
State 3, during evening, lithium battery (2) is in discharge condition, and lithium battery (2) is without charging ability, and lithium battery (2) is if energy
Power, then MCU main control circuits (13) normal work, when (this temperature can adjust according to the type selecting of lithium battery) is spent less than -15,
MCU main control circuits (13) control WARMEN_EN pin output high level, N-channel MOS pipe two (56) conducting, solar cell (3)
The equivalent lithium battery (2) of negative pole negative pole；Lithium battery (2) is powered, the first pin driving N ditches of LM358 operational amplifiers (51)
Road metal-oxide-semiconductor (52) makes the heating plate (4) of lithium battery (2) be in warm-up mode, and lithium battery (2) temperature rises to -5 degree (this temperature
Can be adjusted according to the type selecting of lithium battery) more than then MCU main control circuits (13) control WARMEN_EN pin close the high electricity of output
Flat, N-channel MOS pipe two (56) is obstructed, stops power supply and then closes heating.
Certainly, it is to limitation of the present utility model that described above, which is not, and the utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, the variations, modifications, additions or substitutions made, all
The scope of protection of the utility model should be belonged to.
Claims (6)
- A kind of 1. energy storage charging-discharging controller with dual control heating function, it is characterised in that：Including charging-discharging controller (1), Lithium battery (2) and solar cell (3), heating plate (4) is fitted with lithium battery (2)；The charging-discharging controller (1) includes logical With charging circuit (11), temperature measurement circuit (12), MCU main control circuits (13), heating plate control circuit (14) and heating power supply choosing Select circuit (15)；The thermometric input of temperature measurement circuit (12) the connection MCU main control circuits (13), the survey of temperature measurement circuit (12) Temperature probe fits in the surface of lithium battery (2)；The both ends connection heating plate control circuit (14) of the heating plate (4), lithium battery (2) and power supply selection circuit (15) is heated in solar cell (3) connection, and heating plate control circuit (14) and heating power supply selection are electric Road (15) connection MCU main control circuits (13).
- 2. the energy storage charging-discharging controller according to claim 1 with dual control heating function, it is characterised in that：The survey Circuit temperature (12) includes thermistor one (37), thermistor two (39), ceramic disc capacitor one (21), ceramic disc capacitor two (22), electricity 12 (38), resistance ten (40) are hindered, thermistor one (37), thermistor two (39) fit in lithium battery (2) surface, MCU master The ADC-NTC ends of control circuit (13) connect 5V power supplys, resistance 12 (38), ceramic disc capacitor one by thermistor one (37) (21) it is series at after parallel connection between ADC-NTC ends and the earth terminal of MCU main control circuits (13)；MCU main control circuits (13) 2nd ADC-NTC ends connect 5V power supplys by thermistor two (39), are connected after resistance ten (40), ceramic disc capacitor two (22) are in parallel Between the 2nd ADC-NTC ends of MCU main control circuits (13) and earth terminal.
- 3. the energy storage charging-discharging controller according to claim 2 with dual control heating function, it is characterised in that：It is described to add Hot plate control circuit (14) includes LM358 operational amplifiers (51), N-channel MOS pipe (52), diode 21 (57), resistance 11 (90), resistance two (82), resistance three (83), resistance four (84), resistance five (85), resistance six (86), thermistor three (81), electric capacity three (23)；The second pin of one end connection LM358 operational amplifiers (51) of the thermistor three (81), separately One end connects 10 volts of voltages, and thermistor three (81) fits in the surface of lithium battery (2)；One end connection of resistance three (83) 3rd pin of LM358 operational amplifiers (51), the other end connect 10 volts of voltages；The second of LM358 operational amplifiers (51) is drawn Pin, resistance four (84), resistance two (82), the second pin of LM358 operational amplifiers (51) are sequentially connected in series；The LM358 computings By being grounded in electric capacity three (23) equipment, the 4th pin of LM358 operational amplifiers (51) is set 8th pin of amplifier (51) Standby interior ground connection；Connected after the resistance five (85) is in parallel with resistance six (86) with the G poles of N-channel MOS pipe (52), resistance five (85) End connection LM358 operational amplifiers (51) the first pin, resistance six (86) end connection LM358 operational amplifiers (51) the 4th pin；4th pin of the S poles connection LM358 operational amplifiers (51) of the N-channel MOS pipe (52)；It is described It is connected after diode 21 (57) is in parallel with resistance 11 (90) with the D poles of N-channel MOS pipe (52).
- 4. the energy storage charging-discharging controller according to claim 3 with dual control heating function, it is characterised in that：It is described to add Backing (4) is parallel to the both ends of diode 21 (57), the positive pole connection supply voltage of diode 21 (57).
- 5. the energy storage charging-discharging controller according to claim 3 with dual control heating function, it is characterised in that：The electricity Hinder 11 (90) and be in series with a light emitting diode (95).
- 6. the energy storage charging-discharging controller according to claim 2 with dual control heating function, it is characterised in that：It is described to add Heat power supply selection circuit (15) includes diode 18 (53), diode 19 (54), voltage-regulator diode 20 (55), resistance seven (87), resistance eight (88), resistance nine (89), N-channel MOS pipe two (56), electric capacity four (24)；The voltage-regulator diode 20 (55) The both ends of parallel circuit are connected with resistance seven (87) and diode 19 (54) respectively after in parallel with electric capacity four (24), resistance seven (87) positive source and supply voltage of one end connection solar cell (3)；The resistance eight (88), N-channel MOS pipe two (56) G poles, the D poles of N-channel MOS pipe two (56), resistance nine (89) are sequentially connected in series, and the colelctor electrode of diode 18 (53) passes through Electric capacity four (24) connects 10V power supplys, the S poles of the emitter stage connection N-channel MOS pipe two (56) of diode 18 (53)；The electricity The WARM-EN ends of nine (89) connection MCU main control circuits (13) are hindered, the D poles of N-channel MOS pipe two (56) pass through resistance eight (88) The negative pole of connection lithium battery (2) simultaneously connects the earth terminal of MCU main control circuits (13), the emitter stage connection of diode 19 (54) The negative pole of solar cell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632273.7U CN206908328U (en) | 2017-06-02 | 2017-06-02 | A kind of energy storage charging-discharging controller with dual control heating function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632273.7U CN206908328U (en) | 2017-06-02 | 2017-06-02 | A kind of energy storage charging-discharging controller with dual control heating function |
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| CN206908328U true CN206908328U (en) | 2018-01-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086635A (en) * | 2017-06-02 | 2017-08-22 | 扬州市纵横光电科技有限公司 | A kind of energy storage charging-discharging controller with dual control heating function |
| CN112234696A (en) * | 2020-09-30 | 2021-01-15 | 普联技术有限公司 | Control method and device for lithium battery auxiliary heating system |
| CN115145331A (en) * | 2022-06-22 | 2022-10-04 | 东莞华贝电子科技有限公司 | Low-temperature heating module and electronic equipment |
-
2017
- 2017-06-02 CN CN201720632273.7U patent/CN206908328U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086635A (en) * | 2017-06-02 | 2017-08-22 | 扬州市纵横光电科技有限公司 | A kind of energy storage charging-discharging controller with dual control heating function |
| CN107086635B (en) * | 2017-06-02 | 2024-05-14 | 扬州市纵横光电科技有限公司 | Energy storage charge-discharge controller with double-control heating function |
| CN112234696A (en) * | 2020-09-30 | 2021-01-15 | 普联技术有限公司 | Control method and device for lithium battery auxiliary heating system |
| CN112234696B (en) * | 2020-09-30 | 2022-09-06 | 普联技术有限公司 | Control method and device for lithium battery auxiliary heating system |
| CN115145331A (en) * | 2022-06-22 | 2022-10-04 | 东莞华贝电子科技有限公司 | Low-temperature heating module and electronic equipment |
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