CN208198113U - Power battery protection device, electricity defrosting control system and vehicle - Google Patents
Power battery protection device, electricity defrosting control system and vehicle Download PDFInfo
- Publication number
- CN208198113U CN208198113U CN201820333869.1U CN201820333869U CN208198113U CN 208198113 U CN208198113 U CN 208198113U CN 201820333869 U CN201820333869 U CN 201820333869U CN 208198113 U CN208198113 U CN 208198113U
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- circuit
- temperature
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- 230000005611 electricity Effects 0.000 title claims abstract description 26
- 238000010257 thawing Methods 0.000 title claims abstract description 25
- 238000005485 electric heating Methods 0.000 claims abstract description 30
- 238000000465 moulding Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000005779 cell damage Effects 0.000 abstract description 3
- 208000037887 cell injury Diseases 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to electric vehicle engineering field, especially power battery protection device, electricity defrosting control system and vehicles.The vehicle includes power battery and electricity defrosting control system, the control system includes frost removal, high voltage supply circuit, low-voltage control circuit, control module and temperature sensor, frost removal includes electric heating branch and temperature detect switch (TDS), high voltage supply circuit is connected between the positive and negative anodes of power battery, the first control switch and electric heating branch are provided on high voltage supply circuit, low-voltage control circuit setting connects the first control switch by temperature detect switch (TDS) and the second control switch, control module connects temperature sensor and the second control switch, when the electric heating branch temperature exceeds given threshold, control module controls the second control switch and disconnects the low-voltage control circuit, it solves the problems, such as when the system failure that control switch is opened and closed to lead to damage adhesion high-tension circuit is made to be constantly on state repeatedly and causes energy waste and cell damage.
Description
Technical field
The utility model relates to electric vehicle engineering field, especially power battery protection devices, electricity defrosting control system
And vehicle.
Background technique
Sole energy source of the power battery as pure electric coach, performance are directly related to the continuation of the journey of pure electric coach
Ability and safety, while its accounting reaches the expensive cost of vehicle cost one third, therefore extremely to the protection of power battery
It closes important.In pure electric coach, electricity defrosting, electric heating are the indispensable high voltage components of riding experience, and power battery passes through height
Crimping provides energy directly to electricity defrosting, electric heating.To avoid battery from leading to irreversible damage, high tension loop due to over-discharge
Middle contactor, fuse are in time disconnected and being particularly important.
Temperature detect switch (TDS) in existing frost removal be mostly normally closed type can self-healing temperature switch, as shown in Figure 1, including
High voltage supply circuit and low-voltage control circuit, high voltage supply are provided with control switch on circuit, with control to being arranged in series in height
The electric heating branch power supply on current supply circuit is pressed, low-voltage control circuit control connects first control switch, and low voltage control is returned
Road be provided with temperature detect switch (TDS), the temperature detect switch (TDS) be normally closed type can self-healing temperature switch, temperature control is opened when the temperature is excessively high
Shutdown is opened, and frost removal temperature detect switch (TDS) after temperature reduction can be closed the conducting for realizing DC low-voltage circuit automatically, leads to contactor
Closure and DC high-voltage circuit conducting, to heater power, in the case where no solution system failure, DC high-voltage circuit
Conducting can still result in the disconnection of heater overheat and temperature detect switch (TDS), and repetitious recovery, disconnection are easy to cause contactor more
Secondary high current band damages after carrying cutting.
The simplest mode that solves the above problems be by normally closed type can self-healing temperature switch change normally closed type into cannot
Self-healing temperature switch, having Chinese patent notification number is that the patent document of CN202574142U discloses a kind of high pressure electrothermal
Frost removal works as the system failure, fever temperature is high by accessing the not self-healing temperature detect switch (TDS) of normally closed type in DC low-voltage circuit
When setting value, DC low-voltage circuit disconnection is controlled, to control D.C. contactor disconnection, stops powering to heater,
Solve the problems, such as that above-mentioned normally closed type can be brought by self-healing temperature switch, but due to the limit by frost removal manufacturer
System, can not by the normally closed type can self-healing temperature switch change into can not self-healing temperature switch therefore using
It still will appear the phenomenon that closure disconnects repeatedly in the process, contactor caused to generate adhesion, entire DC high-voltage circuit is in and connects
Logical state, is easy to cause electric power over-discharge, leads to energy waste, and when power supply unit is battery, over-discharge can generate battery can not
The damage of reverse, causes greater loss.
Utility model content
The purpose of the utility model is to provide power battery protection device, electricity defrosting control system and vehicles, to solve
Control switch is opened and closed repeatedly and leads to damage adhesion and make high-tension circuit be constantly on state to cause energy waste when the system failure
And the problem of cell damage.
To achieve the above object, the embodiment of the utility model includes:
A kind of power battery protection device, including high voltage supply circuit, low-voltage control circuit and temperature sensor, the height
It is provided with the first control switch on pressure current supply circuit, to control power battery to being arranged in series on the high voltage supply circuit
The power supply of electric heating branch, the low-voltage control circuit control connect first control switch, use on the low-voltage control circuit
In setting temperature detect switch (TDS), the temperature sensor further includes control mould for detecting the electric heating branch temperature, described device
Block, the second control switch is provided on the low-voltage control circuit, and the input terminal of second control switch connects the control
The input terminal of the output end of module, the control module connects the temperature sensor, when the electric heating branch temperature exceeds
When given threshold, control module controls the second control switch and disconnects the low-voltage control circuit.The first control is effectively prevented to open
Closing damage adhesion causes high voltage supply circuit in the conductive state for a long time, avoids the hair that power battery is damaged by over-discharge
Raw, control switch be opened and closed repeatedly and causes damage adhesion that high-tension circuit is made to be constantly on state to cause when solving the system failure
The problem of energy waste and cell damage.
As a kind of improvement of power battery protection device provided by the utility model, also set on the low-voltage control circuit
It is equipped with rocker switch, to control the on-off of the low-voltage control circuit, the unlatching of the protective device is facilitated to control.
As a kind of further improvement of power battery protection device provided by the utility model, the high voltage supply circuit
On be additionally provided with fuse, guarantee that high voltage supply circuit disconnects under abnormal current situation, prevent the damage of circuit and battery.
As a kind of another step improvement of power battery protection device provided by the utility model, first control switch
For first contactor, second control switch is second contactor.
A kind of electricity defrosting control system, including frost removal, high voltage supply circuit, low-voltage control circuit and temperature sensor,
The frost removal includes electric heating branch and temperature detect switch (TDS), and the first control switch and described is provided on the high voltage supply circuit
Electric heating branch, the low-voltage control circuit control connect first control switch and the temperature detect switch (TDS), and the temperature passes
Sensor is for detecting the electric heating branch temperature, and the control system further includes control module, on the low-voltage control circuit
It is provided with the second control switch, the input terminal of second control switch connects the output end of the control module, the control
The input terminal of module connects the temperature sensor, when the electric heating branch temperature exceeds given threshold, control module control
It makes the second control switch and disconnects the low-voltage control circuit.
As a kind of improvement of electricity defrosting control system provided by the utility model, also set up on the low-voltage control circuit
There is rocker switch, to control the on-off of the low-voltage control circuit.
As a kind of further improvement of electricity defrosting control system provided by the utility model, on the high voltage supply circuit
It is additionally provided with fuse.
As a kind of another step improvement of electricity defrosting control system provided by the utility model, first control switch is
First contactor, second control switch are second contactor.
As a kind of another step improvement of electricity defrosting control system provided by the utility model, the control module is vehicle
Controller.
A kind of vehicle, including power battery and electricity defrosting control system, the control system includes frost removal, high voltage supply
Circuit, low-voltage control circuit and temperature sensor, the frost removal include electric heating branch and temperature detect switch (TDS), the power battery
Positive and negative anodes between be connected with the high voltage supply circuit, the first control switch and described is provided on the high voltage supply circuit
Electric heating branch, the low-voltage control circuit control connect first control switch and the temperature detect switch (TDS), and the temperature passes
Sensor is for detecting the electric heating branch temperature, and the control system further includes control module, on the low-voltage control circuit
It is provided with the second control switch, the input terminal of second control switch connects the output end of the control module, the control
The input terminal of module connects the temperature sensor, when the electric heating branch temperature exceeds given threshold, control module control
It makes the second control switch and disconnects the low-voltage control circuit.
As a kind of improvement of vehicle provided by the utility model, wraping plate is additionally provided on the low-voltage control circuit and is opened
It closes, to control the on-off of the low-voltage control circuit.
As a kind of further improvement of vehicle provided by the utility model, it is additionally provided on the high voltage supply circuit molten
Disconnected device.
As a kind of another step improvement of vehicle provided by the utility model, first control switch is the first contact
Device, second control switch are second contactor.
As a kind of another step improvement of vehicle provided by the utility model, the control module is entire car controller.
Detailed description of the invention
Fig. 1 is the electric control theory figure of frost removal in the prior art；
Fig. 2 is a kind of electric control theory figure of electricity defrosting control system.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing.
The utility model provides a kind of vehicle, which includes power battery and electricity defrosting control system, electricity defrosting control
System processed, as shown in Fig. 2, include frost removal 1, high voltage supply circuit and low-voltage control circuit, power battery positive and negative anodes it
Between be connected with high voltage supply circuit, and be provided on the high voltage supply circuit in the first control switch and frost removal 1 by connecting
Resistance R constitutes electric heating branch；It further include temperature detect switch (TDS) D in the frost removal 1, temperature detect switch (TDS) D is a kind of normally closed self- recoverage
Temperature switch；Temperature detect switch (TDS) D is arranged on low-voltage control circuit, and the second control is additionally provided on the low-voltage control circuit
Switch and rocker switch LS1A, the low-voltage control circuit one end connect 24V voltage, and the other end passes through the control of the first control switch
End ground connection.
It is additionally provided with temperature sensor in the control system, it, will as shown in Fig. 2 for detecting the temperature of electric heating branch
Temperature sensor I is set to the inside of frost removal 1, and temperature sensor I can be a part of frost removal 1, is also possible to solely
Stand on the setting of frost removal 1.
On the basis of the above, preferably above-mentioned first control switch is first contactor K1, and above-mentioned second control is opened
Closing is second contactor K2.Meanwhile it being also provided with fuse F on above-mentioned high voltage supply circuit, to improve to high-tension circuit
Protection.
The control system further includes control module, and preferably the control module is vehicle VCU.Above-mentioned temperature sensor I can lead to
It crosses instrument detection signal and is communicated with vehicle VCU, connection temperature sensor I directly directly can also be sampled by vehicle VCU,
The output end of vehicle VCU connects the control terminal of above-mentioned second contactor K2.
If temperature sensor connects vehicle VCU by instrument, when temperature sensor I detects above-mentioned electric heating branch
When temperature exceeds given threshold, excess temperature signal is passed to instrument by temperature sensor T, and instrument passes to vehicle by message form
VCU, vehicle VCU issue control signal, and control second contactor K2 disconnects low-voltage control circuit, and power battery stops to defrosting
Device provides electric power, and electricity defrosting stops working.The instrument is also connected with buzzer, issues alarm when the temperature is excessively high, prompts driver.
The position of above-mentioned second contactor K2 is not limited only to shown in Fig. 2, can be connected on first contactor K1 and low pressure
Any position between control loop feeder ear.
When heating branch operation irregularity of the control system in frost removal 1, stops battery power supply, prevents battery over-discharge,
It is a kind of device for being effectively protected power battery.
Above-mentioned electric heating branch is not only present in frost removal 1, is equally existed in the heater of vehicle, therefore, above-mentioned
Circuit connecting mode in control system is equally applicable to the control to heater, prevents battery case heating installation power supply failure from causing
Battery over-discharge and damage.
Be presented above the utility model relates to specific embodiment, but the utility model is not limited to described reality
Apply mode.Under the thinking that the utility model provides, to above-mentioned by the way of being readily apparent that those skilled in the art
Technological means in embodiment is converted, is replaced, is modified, and play the role of and the utility model in relevant art hand
The purpose of utility model that section is essentially identical, realizes is also essentially identical, and the technical solution formed in this way is carried out to above-described embodiment
What fine tuning was formed, this technical solution is still fallen in the protection scope of the utility model.
Claims (14)
1. a kind of power battery protection device, including high voltage supply circuit, low-voltage control circuit and temperature sensor, the high pressure
The first control switch is provided on current supply circuit, to control power battery to the electricity being arranged in series on the high voltage supply circuit
Branch power supply is heated, the low-voltage control circuit control connects first control switch, is used on the low-voltage control circuit
Temperature detect switch (TDS) is set, and the temperature sensor is for detecting the electric heating branch temperature, which is characterized in that described device is also wrapped
Control module is included, the second control switch, the input terminal connection of second control switch are provided on the low-voltage control circuit
The input terminal of the output end of the control module, the control module connects the temperature sensor, when the electric heating branch
When temperature exceeds given threshold, control module controls the second control switch and disconnects the low-voltage control circuit.
2. power battery protection device according to claim 1, which is characterized in that also set up on the low-voltage control circuit
There is rocker switch, to control the on-off of the low-voltage control circuit.
3. power battery protection device according to claim 1 or 2, which is characterized in that on the high voltage supply circuit also
It is provided with fuse.
4. power battery protection device according to claim 1 or 2, which is characterized in that first control switch is the
One contactor, second control switch are second contactor.
5. a kind of electricity defrosting control system, including frost removal, high voltage supply circuit, low-voltage control circuit and temperature sensor, institute
Stating frost removal includes electric heating branch and temperature detect switch (TDS), is provided with the first control switch and the electricity on the high voltage supply circuit
Branch is heated, the low-voltage control circuit control connects first control switch and the temperature detect switch (TDS), the temperature sensing
Device is for detecting the electric heating branch temperature, which is characterized in that the control system further includes control module, the low pressure control
The second control switch is provided on circuit processed, the input terminal of second control switch connects the output end of the control module,
The input terminal of the control module connects the temperature sensor, when the electric heating branch temperature exceeds given threshold, control
Molding block controls the second control switch and disconnects the low-voltage control circuit.
6. electricity defrosting control system according to claim 5, which is characterized in that be additionally provided on the low-voltage control circuit
Rocker switch, to control the on-off of the low-voltage control circuit.
7. electricity defrosting control system according to claim 5 or 6, which is characterized in that also set on the high voltage supply circuit
It is equipped with fuse.
8. electricity defrosting control system according to claim 5 or 6, which is characterized in that first control switch is first
Contactor, second control switch are second contactor.
9. electricity defrosting control system according to claim 5, which is characterized in that the control module is entire car controller.
10. a kind of vehicle, including power battery and electricity defrosting control system, the control system includes frost removal, high voltage supply
Circuit, low-voltage control circuit and temperature sensor, the frost removal include electric heating branch and temperature detect switch (TDS), the power battery
Positive and negative anodes between be connected with the high voltage supply circuit, the first control switch and described is provided on the high voltage supply circuit
Electric heating branch, the low-voltage control circuit control connect first control switch and the temperature detect switch (TDS), and the temperature passes
Sensor is for detecting the electric heating branch temperature, which is characterized in that the control system further includes control module, the low pressure
The second control switch is provided in control loop, the input terminal of second control switch connects the output of the control module
The input terminal at end, the control module connects the temperature sensor, when the electric heating branch temperature exceeds given threshold,
Control module controls the second control switch and disconnects the low-voltage control circuit.
11. vehicle according to claim 10, which is characterized in that be additionally provided with wraping plate on the low-voltage control circuit and open
It closes, to control the on-off of the low-voltage control circuit.
12. vehicle described in 0 or 11 according to claim 1, which is characterized in that be additionally provided with fusing on the high voltage supply circuit
Device.
13. vehicle described in 0 or 11 according to claim 1, which is characterized in that first control switch is first contactor,
Second control switch is second contactor.
14. vehicle according to claim 10, which is characterized in that the control module is entire car controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820333869.1U CN208198113U (en) | 2018-03-12 | 2018-03-12 | Power battery protection device, electricity defrosting control system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820333869.1U CN208198113U (en) | 2018-03-12 | 2018-03-12 | Power battery protection device, electricity defrosting control system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208198113U true CN208198113U (en) | 2018-12-07 |
Family
ID=64527627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820333869.1U Withdrawn - After Issue CN208198113U (en) | 2018-03-12 | 2018-03-12 | Power battery protection device, electricity defrosting control system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208198113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254233A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of power battery protection device, electricity defrosting control system and vehicle |
-
2018
- 2018-03-12 CN CN201820333869.1U patent/CN208198113U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254233A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of power battery protection device, electricity defrosting control system and vehicle |
| CN110254233B (en) * | 2018-03-12 | 2024-04-19 | 宇通客车股份有限公司 | Power battery protection device, electric defrosting control system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Road, Guancheng District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20240419 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181207 Effective date of abandoning: 20240419 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |