CN207116629U - Battery heater circuit and integrated battery - Google Patents
Battery heater circuit and integrated battery Download PDFInfo
- Publication number
- CN207116629U CN207116629U CN201721034250.2U CN201721034250U CN207116629U CN 207116629 U CN207116629 U CN 207116629U CN 201721034250 U CN201721034250 U CN 201721034250U CN 207116629 U CN207116629 U CN 207116629U
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- Prior art keywords
- resistor
- circuit
- battery
- reference voltage
- thermistor
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- 238000005070 sampling Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 62
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000010409 thin film Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 1
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- 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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- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a kind of battery heater circuit and integrated battery, and the battery heater circuit includes heater, temperature sampling circuit, reference voltage circuit, comparison circuit and on-off circuit；Wherein, temperature sampling circuit, the Current Temperatures of battery are detected, is converted into corresponding sampled voltage；Reference voltage circuit, there is provided reference voltage；Comparison circuit, by sampled voltage compared with reference voltage, according to comparative result output level control signal；On-off circuit, according to level controling signal, shut-off or the power supply for opening heater；Heater, in electric power starting, battery is heated.Technical solutions of the utility model ensure that battery can charge normal in low temperature.
Description
Technical Field
The utility model relates to a battery technology field, in particular to battery heating circuit and integrated battery.
Background
The working temperature of the lithium battery on the current market can reach minus 40 ℃ to plus 60 ℃, but the charging temperature must be 0-45 ℃. Therefore, the use environment is greatly limited, and the battery cannot be charged particularly when the battery is not enough to be charged after long-time work in a low-temperature environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery heating circuit, guarantee when aiming at low temperature that the battery can normally charge.
In order to achieve the above object, the present invention provides a battery heating circuit, which comprises a heating device, a temperature sampling circuit, a reference voltage circuit, a comparison circuit, and a switch circuit; wherein,
the temperature sampling circuit detects the current temperature of the battery and converts the current temperature into corresponding sampling voltage;
the reference voltage circuit provides a reference voltage;
the comparison circuit compares the sampling voltage with a reference voltage and outputs a level control signal according to a comparison result;
the switch circuit is used for switching off or switching on the power supply of the heating device according to the level control signal;
the heating device heats the battery when the power supply is turned on.
Preferably, the temperature sampling circuit and the reference voltage circuit are both connected with the comparison circuit, the comparison circuit is connected with the switch circuit, and the switch circuit is connected with the heating device.
Preferably, the reference voltage circuit comprises a first resistor, a first thermistor and a first power supply; the first end of the first resistor is connected with the first power supply, the second end of the first resistor is connected with the first end of the first thermistor, the second end of the first thermistor is grounded, and the first end of the first thermistor is also connected with the comparison circuit.
Preferably, the temperature sampling circuit comprises a second power supply, a second thermistor, a second resistor, a third resistor and a fourth resistor; the first end of the second thermistor is connected with the second power supply, the second end of the second thermistor is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the third resistor, the second end of the third resistor is connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded; the second end of the second thermistor is also connected with the comparison circuit.
Preferably, the comparison circuit comprises a first comparator, a fifth resistor and a sixth resistor; the first end of the fifth resistor is connected with the reference voltage circuit, the second end of the fifth resistor is connected with the non-inverting input end of the first comparator, the second end of the fifth resistor is also connected with the first end of a sixth resistor, and the second end of the sixth resistor is connected with the output end of the first comparator; the inverting input end of the first comparator is connected with the temperature sampling circuit; the output end of the first comparator is connected with the switch circuit.
Preferably, the switch circuit includes a seventh resistor, an eighth resistor, a first triode, and a first MOS transistor; a first end of the seventh resistor is connected with the comparison circuit, a second end of the seventh resistor is connected with a base terminal of the first triode, a first end of the eighth resistor is connected with the base terminal of the first triode, and a second end of the eighth resistor is grounded; the emitter end of the first triode is grounded, the collector end of the first triode is connected with the gate end of the first MOS tube, the source end of the first MOS tube is connected with an external power supply, and the drain end of the first MOS tube is connected with the heating device.
Preferably, the switch circuit comprises a ninth resistor, a tenth resistor, an eleventh resistor and a first capacitor; a first end of the ninth resistor is connected with a collector terminal of the first triode, a second end of the ninth resistor is connected with a first end of the tenth resistor, and a second end of the tenth resistor is connected with a gate terminal of the first MOS transistor; a first end of the eleventh resistor is connected with a second end of the ninth resistor, and a second end of the eleventh resistor is connected with an external power supply; and the first end of the first capacitor is connected with the second end of the tenth resistor, and the second end of the first capacitor is connected with an external power supply.
Preferably, the switch circuit comprises a first ESD tube and a second ESD tube; the anode of the first ESD tube is connected with the second end of the ninth resistor, and the cathode of the first ESD tube is connected with an external power supply; the anode of the second ESD tube is connected with the anode of the first ESD tube, and the cathode of the second ESD tube is connected with the cathode of the second ESD tube.
Preferably, the heating device is a thin film heating sheet, and the heating sheet is arranged on the battery.
The utility model provides an integrated battery, integrated battery includes as above battery heating circuit. The battery heating circuit comprises a heating device, a temperature sampling circuit, a reference voltage circuit, a comparison circuit and a switch circuit; the temperature sampling circuit detects the current temperature of the battery and converts the current temperature into corresponding sampling voltage; the reference voltage circuit provides a reference voltage; the comparison circuit compares the sampling voltage with a reference voltage and outputs a level control signal according to a comparison result; the switch circuit is used for switching off or switching on the power supply of the heating device according to the level control signal; the heating device heats the battery when the power supply is turned on.
The utility model discloses technical scheme has formed a battery heating circuit through setting up heating device, temperature sampling circuit, reference voltage circuit, comparison circuit, and switch circuit. The reference voltage output by the reference voltage circuit corresponds to the threshold temperature of the battery, the temperature sampling circuit detects the temperature of the battery to obtain sampling voltage, the comparison circuit compares the sampling voltage with the reference voltage, and the level output by the comparison circuit is turned over, so that when the switch circuit is switched on, the heating device is started to heat the battery, and the battery can be normally charged. The technical scheme ensures that the battery can still be charged in a severe environment, and improves the applicability of the battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional block diagram of an embodiment of a battery heating circuit according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the battery heating circuit of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention.
The utility model provides a battery heating circuit.
Referring to fig. 1, in the embodiment of the present invention, the battery heating circuit includes a heating device 50, a temperature sampling circuit 20, a reference voltage circuit 10, a comparison circuit 30, and a switch circuit 40; wherein,
the temperature sampling circuit 20 detects the current temperature of the battery and converts the current temperature into corresponding sampling voltage;
the reference voltage circuit 10 provides a reference voltage;
the comparison circuit 30 compares the sampling voltage with a reference voltage, and outputs a level control signal according to the comparison result;
the switch circuit 40 turns off or on the power supply of the heating device 50 according to the level control signal;
the heating device 50 heats the battery when the power is turned on.
In this embodiment, the battery used in the battery heating circuit is 18650 battery, and 8650 battery refers to a cylindrical lithium battery with a diameter of 18mm and a length of 65 mm. The 18650 common batteries are classified into lithium ion batteries and lithium iron phosphate batteries. The voltage of the lithium ion battery is 3.6V and 4.2V, the voltage of the lithium iron phosphate battery is 3.2V, the capacity is usually 1200mAh-3000mAh, and the common capacity is 2200mAh-2600 mAh. The 18650 battery working temperature in the current market can reach-40 to +60 ℃, but the charging temperature must be 0 to 45 ℃. Therefore, the use environment is greatly limited, and the battery cannot be charged particularly when the battery is not enough to be charged after long-time work in a low-temperature environment. Therefore, in the present embodiment, a 18650 battery scheme including the heating device 50 is designed, so as to widen a usage scenario of the 18650 battery in a low-temperature environment.
The utility model discloses technical scheme has formed a battery heating circuit through setting up heating device 50, temperature sampling circuit 20, reference voltage circuit 10, comparison circuit 30, and switch circuit 40. The reference voltage output by the reference voltage circuit 10 corresponds to the threshold temperature of the battery, the temperature sampling circuit 20 detects the temperature of the battery to obtain a sampling voltage, the comparison circuit 30 compares the sampling voltage with the reference voltage, and the level output by the comparison circuit 30 is turned over, so that when the switch circuit 40 is switched on, the heating device 50 is started to heat the battery, and the battery can be normally charged. The technical scheme ensures that the battery can still be charged in a severe environment, and improves the adaptability of the battery.
Specifically, the temperature sampling circuit 20 and the reference voltage circuit 10 are both connected to the comparison circuit 30, the comparison circuit 30 is connected to the switch circuit 40, and the switch circuit 40 is connected to the heating device 50.
Referring to fig. 2, in particular, the reference voltage circuit 10 includes a first resistor R1, a first thermistor Rt1 and a first power VCC 1; the first end of the first resistor R1 is connected with the first power source VCC1, the second end of the first resistor R1 is connected with the first end of the first thermistor Rt, the second end of the first thermistor Rt is grounded, and the first end of the first thermistor Rt is further connected with the comparison circuit 30.
The thermistor that this patent adopted is negative temperature coefficient thermistor, and the temperature is higher, and its resistance is lower. Because the resistance value of the thermistor has a certain corresponding relation with the temperature, the temperature of the current 18650 battery is detected through the thermistor.
The reference voltage of the reference voltage circuit 10 is divided by the first resistor R1 and the first thermistor Rt, so that the 18650 battery is heated when the battery temperature is lower than a certain temperature (e.g., 0 ℃) and the battery is stopped when the battery temperature is higher than a certain temperature (e.g., 36 ℃).
Specifically, the temperature sampling circuit 20 includes a second power VCC2, a second thermistor Rt2, a second resistor R2, a third resistor R3, and a fourth resistor R4; a first end of the second thermistor Rt2 is connected to the second power VCC2, a second end of the second thermistor Rt2 is connected to a first end of the second resistor R2, a second end of the second resistor R2 is connected to a first end of the third resistor R3, a second end of the third resistor is connected to a first end of the fourth resistor R4, and a second end of the fourth resistor R4 is grounded; a second terminal of the second thermistor Rt2 is also connected to the comparison circuit 30.
Specifically, the comparison circuit 30 includes a first comparator U1, a fifth resistor R1, and a sixth resistor R6; a first end of the fifth resistor R1 is connected to the reference voltage circuit 10, a second end of the fifth resistor R1 is connected to a non-inverting input terminal IN + of the first comparator U1, a second end of the fifth resistor R1 is further connected to a first end of a sixth resistor R6, and a second end of the sixth resistor R6 is connected to an output terminal OUT of the first comparator U1; the inverting input end IN-of the first comparator U1 is connected with the temperature sampling circuit 20; the output OUT of the first comparator U1 is connected to the switching circuit 40.
It should be noted that IN the present embodiment, the first comparator U1 is configured as an inverting input hysteresis comparator, and the value detected by the thermistor is input through the inverting input terminal IN-of the first comparator U1. In this embodiment, when VN > VP, the output voltage Vout is at the low level VOL, whereas Vout is at the high level VOH. Therefore, the VP value is a threshold voltage VTH, which is divided into an upper threshold voltage and a lower threshold voltage.
In addition, the threshold voltage VTH can be set correspondingly by selecting parameters of the components (resistance, power supply voltage), so that the on-temperature and the off-temperature of the heating device 50 can be flexibly set.
In addition, the ground terminal GND of the first comparator U1 is grounded, the power terminal VCC is connected to the third power source VCC3, the comparison circuit 30 further includes a second capacitor C2, the first terminal of the second capacitor C2 is connected to the power terminal, and the second terminal of the second capacitor C2 is grounded.
Specifically, the switch circuit 40 includes a seventh resistor R7, an eighth resistor R8, a first transistor K1, and a first MOS transistor U2; a first end of the seventh resistor R7 is connected to the comparator circuit 30, a second end of the seventh resistor R7 is connected to the base terminal of the first transistor K1, a first end of the eighth resistor R8 is connected to the base terminal of the first transistor K1, and a second end of the eighth resistor R8 is grounded; the emitter terminal of the first transistor K1 is grounded, the collector terminal of the first transistor K1 is connected to the gate terminal of the first MOS transistor U2, the source terminal of the first MOS transistor U2 is connected to an external power source, and the drain terminal of the first MOS transistor U2 is connected to the heating device 50.
It should be noted that, in this embodiment, the first MOS transistor U2 is a single P-channel enhancement type MOS transistor with a model number of DMP3035 LSS. The first MOS transistor U2 includes pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, and pin 7, i.e., pin 8; the pin 1, the pin 2 and the pin 3 are connected to each other and then serve as a source terminal of the first MOS transistor U2, the pin 4 serves as a gate terminal of the first MOS transistor U2, and the pin 5, the pin 6, the pin 7 and the pin 8 are connected to each other and then serve as a drain terminal of the first MOS transistor U2.
The level control signal output by the comparison circuit 30 is input to the first triode K1, when the level control signal is at a high level, the first triode K1 is turned on, the gate terminal of the first MOS transistor U2 is grounded, the MOS transistor in the first MOS transistor U2 reaches a conduction condition, the first MOS transistor U2 is turned on, and the external power supply starts to supply power to the heating device 50, so as to heat the battery. When the level control signal is at a low level, the first transistor K1 is turned off to correspondingly turn off the power supply of the heating device 50, and the battery is stopped from being heated.
Further, the switch circuit 40 includes a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a first capacitor C1; a first end of the ninth resistor R9 is connected to the collector terminal of the first transistor K1, a second end of the ninth resistor R9 is connected to a first end of the tenth resistor R10, and a second end of the tenth resistor R10 is connected to the gate terminal of the first MOS transistor U2; a first end of the eleventh resistor R11 is connected with a second end of the ninth resistor R9, and a second end of the eleventh resistor R11 is connected with an external power supply; a first terminal of the first capacitor C1 is connected to a second terminal of the tenth resistor R10, and a second terminal of the first capacitor C1 is connected to an external power source.
Here, the ninth resistor R9 and the eleventh resistor R11 form a voltage divider circuit of the gate of the first MOS transistor U2, the tenth resistor is a gate current limiting resistor, and the first capacitor C1 is a gate filter circuit, so as to prevent external interference and ensure stable and reliable turning on or off of the first MOS transistor U2.
Further, the switch circuit 40 includes a first ESD tube D1 and a second ESD tube D2; the anode of the first ESD tube D1 is connected to the second end of the ninth resistor R9, and the cathode of the first ESD tube D1 is connected to an external power source; an anode of the second ESD tube D2 is connected to an anode of the first ESD tube D1, and a cathode of the second ESD tube D2 is connected to a cathode of the first ESD tube D1.
The first ESD transistor D1 and the second ESD transistor D2 perform an electrostatic protection function, so as to prevent the first MOS transistor U2 from being damaged and prevent the battery from being damaged.
In this embodiment, the heating device 50 is a thin film heating plate, and the heating plate is disposed on the battery. The heating piece can wrap one side or the surface of the battery and fully contact with the battery, so that the battery can be rapidly heated and rapidly enter a chargeable state when the heating piece works.
The utility model discloses technical scheme utilizes comparison circuit 30 to realize not needing the participation of control chip and software to heating device 50's control, has advantages such as simple, stable, easily realization.
The utility model also provides an integrated battery, this integrated battery include the way and the battery of above-mentioned battery heating, and the concrete structure on the way of this battery heating refers to above-mentioned embodiment, because this integrated battery has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The utility model discloses technical scheme not only can design in the need broadening 18650 battery low temperature use occasion's product, can also be in the same place with 18650 batteries, for example can arrange technical scheme's battery heating circuit in on the circuit board, set up again on the battery. The circuit board may be a circuit board to which three batteries are connected, thereby forming a 18650 battery product suitable for long-term low-temperature operation.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A battery heating circuit is characterized by comprising a heating device, a temperature sampling circuit, a reference voltage circuit, a comparison circuit and a switch circuit; wherein,
the temperature sampling circuit detects the current temperature of the battery and converts the current temperature into corresponding sampling voltage;
the reference voltage circuit provides a reference voltage;
the comparison circuit compares the sampling voltage with a reference voltage and outputs a level control signal according to a comparison result;
the switch circuit is used for switching off or switching on the power supply of the heating device according to the level control signal;
the heating device heats the battery when the power supply is turned on.
2. The battery heating circuit of claim 1, wherein the temperature sampling circuit and the reference voltage circuit are both connected to the comparison circuit, the comparison circuit is connected to the switching circuit, and the switching circuit is connected to the heating device.
3. The battery heating circuit of claim 2, wherein the reference voltage circuit comprises a first resistor, a first thermistor, and a first power source; the first end of the first resistor is connected with the first power supply, the second end of the first resistor is connected with the first end of the first thermistor, the second end of the first thermistor is grounded, and the first end of the first thermistor is also connected with the comparison circuit.
4. The battery heating circuit of claim 2, wherein the temperature sampling circuit comprises a second power source, a second thermistor, a second resistor, a third resistor, and a fourth resistor; the first end of the second thermistor is connected with the second power supply, the second end of the second thermistor is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the third resistor, the second end of the third resistor is connected with the first end of the fourth resistor, and the second end of the fourth resistor is grounded; the second end of the second thermistor is also connected with the comparison circuit.
5. The battery heating circuit of any of claims 1-4, wherein the comparison circuit comprises a first comparator, a fifth resistor, and a sixth resistor; the first end of the fifth resistor is connected with the reference voltage circuit, the second end of the fifth resistor is connected with the non-inverting input end of the first comparator, the second end of the fifth resistor is also connected with the first end of a sixth resistor, and the second end of the sixth resistor is connected with the output end of the first comparator; the inverting input end of the first comparator is connected with the temperature sampling circuit; the output end of the first comparator is also connected with the switch circuit.
6. The battery heating circuit of claim 2, wherein the switching circuit comprises a seventh resistor, an eighth resistor, a first transistor, and a first MOS transistor; a first end of the seventh resistor is connected with the comparison circuit, a second end of the seventh resistor is connected with a base terminal of the first triode, a first end of the eighth resistor is connected with the base terminal of the first triode, and a second end of the eighth resistor is grounded; the emitter end of the first triode is grounded, the collector end of the first triode is connected with the gate end of the first MOS tube, the source end of the first MOS tube is connected with an external power supply, and the drain end of the first MOS tube is connected with the heating device.
7. The battery heating circuit of claim 6, wherein the switching circuit comprises a ninth resistor, a tenth resistor, an eleventh resistor, and a first capacitor; a first end of the ninth resistor is connected with a collector terminal of the first triode, a second end of the ninth resistor is connected with a first end of the tenth resistor, and a second end of the tenth resistor is connected with a gate terminal of the first MOS transistor; a first end of the eleventh resistor is connected with a second end of the ninth resistor, and a second end of the eleventh resistor is connected with an external power supply; and the first end of the first capacitor is connected with the second end of the tenth resistor, and the second end of the first capacitor is connected with an external power supply.
8. The battery heating circuit of claim 7, wherein the switching circuit comprises a first ESD transistor and a second ESD transistor; the anode of the first ESD tube is connected with the second end of the ninth resistor, and the cathode of the first ESD tube is connected with an external power supply; the anode of the second ESD tube is connected with the anode of the first ESD tube, and the cathode of the second ESD tube is connected with the cathode of the first ESD tube.
9. The battery heating circuit of claim 1, wherein the heating device is a thin film heater chip disposed on the battery.
10. An integrated battery, characterized in that it comprises a battery heating circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034250.2U CN207116629U (en) | 2017-08-17 | 2017-08-17 | Battery heater circuit and integrated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034250.2U CN207116629U (en) | 2017-08-17 | 2017-08-17 | Battery heater circuit and integrated battery |
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| CN207116629U true CN207116629U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721034250.2U Active CN207116629U (en) | 2017-08-17 | 2017-08-17 | Battery heater circuit and integrated battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113342089A (en) * | 2021-04-27 | 2021-09-03 | 上海空间电源研究所 | High-precision low-cost storage battery autonomous temperature control circuit |
| CN114421034A (en) * | 2022-01-21 | 2022-04-29 | 广东志成冠军集团有限公司 | Universal microelectronic switch for lithium battery module and use method thereof |
-
2017
- 2017-08-17 CN CN201721034250.2U patent/CN207116629U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113342089A (en) * | 2021-04-27 | 2021-09-03 | 上海空间电源研究所 | High-precision low-cost storage battery autonomous temperature control circuit |
| CN114421034A (en) * | 2022-01-21 | 2022-04-29 | 广东志成冠军集团有限公司 | Universal microelectronic switch for lithium battery module and use method thereof |
| CN114421034B (en) * | 2022-01-21 | 2024-03-01 | 广东志成冠军集团有限公司 | Universal microelectronic switch for lithium battery module and application method thereof |
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