CN207426085U - A kind of battery equipped with self-heating apparatus - Google Patents
A kind of battery equipped with self-heating apparatus Download PDFInfo
- Publication number
- CN207426085U CN207426085U CN201721500468.2U CN201721500468U CN207426085U CN 207426085 U CN207426085 U CN 207426085U CN 201721500468 U CN201721500468 U CN 201721500468U CN 207426085 U CN207426085 U CN 207426085U
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- Prior art keywords
- battery
- self
- heating
- heating apparatus
- inductance
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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 provides a kind of battery equipped with self-heating apparatus, including battery body and self-heating apparatus；Self-heating apparatus includes heating line, the anode of wherein one end connection battery body of heating line, and the other end connects the cathode of battery body；Inductance and first switch are provided on the heating line, is connected between inductance and first switch.Technical solution provided by the utility model is provided with inductance on the heating line of battery, so the electric current in heating line will not generate larger transient current, will not burn out battery.
Description
Technical field
The utility model belongs to battery technical field of heating, and in particular to a kind of battery equipped with self-heating apparatus.
Background technology
Lithium battery self-characteristic determines that it cannot charge below 0 DEG C in low temperature environment, otherwise can cause cathode
Lithium is analysed, declines the capacity of battery, while can also form Li dendrite in cathode, Li dendrite is continuous with the cycling of lithium ion battery
Growth, eventually penetrates membrane, causes the positive and negative anodes short circuit of charging unit, in some instances it may even be possible to trigger security incident.
Although lithium battery can discharge under the low temperature environment below 0 DEG C, lithium battery at low ambient temperatures its
Internal resistance is usually bigger, and the discharge voltage of lithium battery declines also with temperature and reduced, so institute cannot be provided for load
The operating voltage and operating current needed.
In practical application, such as in severe cold area, pure electric automobile passes through the standing in an evening, and battery would be at low temperature
State, if necessary using battery, it is necessary to be heated to battery.There are two types of usual to the mode of battery heating at present, wherein
One kind is that other external equipments is used to be heated for battery, and another kind is heated using the electric energy of battery in itself, i.e., certainly
Heating.Since the increase of cost can be caused using other external equipments, so many enterprises are all provided with the self-heating of battery.
There are two types of the mode of self-heating is usual, one of which is that the dresses such as heating wire are set between the positive electrode and negative electrode of battery
It puts, heat is generated after energization and is heated for battery, this mode needs to set heating wire, and cost is higher, and efficiency is relatively low；Other one
Kind is directly by the positive electrode and negative electrode short circuit of battery, generates heat using the internal resistance of battery itself and is heated, this mode is not
It needs to set other equipment, cost is relatively low, and directly acts on battery in itself, and the efficiency of heating surface is high, and firing rate is fast.
But the mode of the positive electrode and negative electrode short circuit of battery directly can be generated into larger electric current moment, it may be not yet
It is in time for the electric current is adjusted, just burns out battery, so the security of this self-heating mode reduces.
Utility model content
The utility model provides a kind of battery equipped with self-heating apparatus, due to instantaneous electric during for solving battery self-heating
Flow through it is big and the problem of burn out battery.
To achieve the above object, technical solution provided by the utility model is：
A kind of battery equipped with self-heating apparatus, including battery body and self-heating apparatus；Self-heating apparatus includes heating
Circuit, the anode of wherein one end connection battery body of heating line, the other end connect the cathode of battery body；The heater wire
Road is provided with inductance and first switch, connects between inductance and first switch.
Technical solution provided by the utility model is provided with inductance on the heating line of battery, so in heating line
Electric current will not generate larger transient current, battery will not be burnt out.
Further, controller is further included, the first switch is the first controllable switch, and the controller connection first can
Control the control pole of switch.
The duty cycle of controllable switch break-make is controlled by controller, the electric current in heating line can be adjusted.
Further, the heating line is provided with current sensor, the signal of the controller connection current sensor
Output terminal.
Current sensor is set, the electric current in heating line can be monitored, prevent that electric current is excessive and burns out battery.
Further, temperature sensor is further included, temperature sensor is arranged at battery body, the controller connection temperature
Spend the signal output part of sensor.
By temperature sensor, it can interpolate that whether battery needs to carry out self-heating.
Further, the inductance in parallel has the second controllable switch, and the controller connects the control of the second controllable switch
Pole.
Further, the inductance in parallel has fly-wheel diode.
Second controllable switch or fly-wheel diode are set, it can be when inductance be stopped, by the current drain in inductance
Fall.
Description of the drawings
Fig. 1 is the structure principle chart of the current-limiting inductance parallel connection fly-wheel diode of heating line in embodiment；
Fig. 2 is the structure principle chart of current-limiting inductance the second controllable switch in parallel of heating line in embodiment.
Specific embodiment
The purpose of this utility model is to provide a kind of battery equipped with self-heating, during for solving battery self-heating due to
Transient current is excessive and the problem of burning out battery.
To achieve the above object, technical solution provided by the utility model is：
A kind of battery equipped with self-heating apparatus, including battery body and self-heating apparatus；Self-heating apparatus includes heating
Circuit, the anode of wherein one end connection battery body of heating line, the other end connect the cathode of battery body；The heater wire
Road is provided with inductance and first switch, connects between inductance and first switch.
The technical solution of the utility model is described further With reference to embodiment.
The present embodiment provides a kind of batteries equipped with self-heating, use the mode of the positive electrode and negative electrode short circuit of battery as electricity
Pond is heated, and is solved the problems, such as due to burning out battery since transient current is excessive in heating process.
A kind of battery equipped with self-heating that the present embodiment is provided is as shown in Figure 1, including battery body GB1 and self-heating
Device, self-heating apparatus include controller U1 and heating line, and wherein one end connection battery body GB1 of heating line is just
Pole, the cathode of other end connection battery body GB1.
String is equipped with current-limiting inductance L1 and the first controllable switch Q1, controller U1 the first controllable switch of connection in heating line
The control pole of Q1.
Current sensor CT1, the signal output of controller U1 connection current sensors CT1 are additionally provided in heating line
End, current sensor CT1 are used to detect the current signal of heating line, and send it to controller U1.
Temperature sensor RT1, the signal output of controller U1 connection temperature sensors RT1 are provided at battery body GB1
End, temperature sensor RT1 are used to detect the temperature signal of battery, and send it to controller U1.
The temperature signal of temperature sensor RT1 detection battery bodies GB1 is simultaneously sent to controller U1, when controller U1 judges
When the temperature of battery body GB1 is too low, control the first controllable switch Q1 be closed, at this time the positive electrode and negative electrode of battery body GB1 it
Between short circuit, since the internal resistance R1 of battery body GB1 is larger, so battery body GB1 itself can generate higher temperature, to its from
Body is heated.
Due to the presence of current-limiting inductance L1, when the first controllable switch Q1 is closed, will not be generated in heating line larger
Electric current；And with the rise of battery body GB1 temperature, internal resistance R1 is gradually reduced, and the electric current in heating line continues to increase,
Due to the metering function of current-limiting inductance L1, larger electric current will not be generated in heating line moment.
Current sensor CT1 detects the electric current in heating line and is sent to controller U1 in real time, and controller U1 is according to this
Current value controls the duty cycle of the first controllable switch Q1 conductings, makes the electric current in heating line will not be excessively high, in order to avoid burn out battery
Body GB1.
When temperature sensor RT1 detects that the temperature of battery body GB1 is higher, needs not continue to heating, control first
Controllable switch Q1 is disconnected, and battery body GB1 stops self-heating.
Due to the working characteristics of current-limiting inductance L1, when the first controllable switch Q1 is disconnected, current-limiting inductance L1 can be stored itself
Part electric energy；At current-limiting inductance L1 and one is set in order to which this part electric energy is made not impacted to battery, in the present embodiment
Sustained diode 1, when the first controllable switch Q1 is disconnected, current-limiting inductance L1 starts to discharge by sustained diode 1, by electric current
It releases.
As other embodiment, the sustained diode 1 of current-limiting inductance L1 parallel connections can be changed into second controllable switch
The control pole of Q2, controller U1 the second controllable switch of connection when the first controllable switch Q1 is disconnected, controls the second controllable switch Q2
It is closed, current-limiting inductance L1 starts to discharge, the current drain of storage be fallen, as shown in Figure 2 by the second controllable switch Q2.
Claims (6)
1. a kind of battery equipped with self-heating apparatus, including battery body and self-heating apparatus；Self-heating apparatus includes heater wire
Road, the anode of wherein one end connection battery body of heating line, the other end connect the cathode of battery body；It is characterized in that,
Inductance and first switch are provided on the heating line, is connected between inductance and first switch.
2. a kind of battery equipped with self-heating apparatus according to claim 1, which is characterized in that further include controller, institute
First switch is stated as the first controllable switch, the controller connects the control pole of the first controllable switch.
3. a kind of battery equipped with self-heating apparatus according to claim 2, which is characterized in that the heating line is set
There are current sensor, the signal output part of the controller connection current sensor.
4. a kind of battery equipped with self-heating apparatus according to Claims 2 or 3, which is characterized in that further include temperature biography
Sensor, temperature sensor are arranged at battery body, the signal output part of the controller connection temperature sensor.
5. a kind of battery equipped with self-heating apparatus according to claim 2, which is characterized in that the inductance in parallel has
Two controllable switches, the controller connect the control pole of the second controllable switch.
6. a kind of battery equipped with self-heating apparatus according to claim 1, which is characterized in that the inductance in parallel has continuous
Flow diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500468.2U CN207426085U (en) | 2017-11-11 | 2017-11-11 | A kind of battery equipped with self-heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721500468.2U CN207426085U (en) | 2017-11-11 | 2017-11-11 | A kind of battery equipped with self-heating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426085U true CN207426085U (en) | 2018-05-29 |
Family
ID=62305577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721500468.2U Expired - Fee Related CN207426085U (en) | 2017-11-11 | 2017-11-11 | A kind of battery equipped with self-heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403855A (en) * | 2020-04-07 | 2020-07-10 | 广东微电新能源有限公司 | Self-heating virus-killing battery device and electronic equipment |
-
2017
- 2017-11-11 CN CN201721500468.2U patent/CN207426085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403855A (en) * | 2020-04-07 | 2020-07-10 | 广东微电新能源有限公司 | Self-heating virus-killing battery device and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20211111 |