CN207217720U - A kind of battery heating system - Google Patents
A kind of battery heating system Download PDFInfo
- Publication number
- CN207217720U CN207217720U CN201720668754.3U CN201720668754U CN207217720U CN 207217720 U CN207217720 U CN 207217720U CN 201720668754 U CN201720668754 U CN 201720668754U CN 207217720 U CN207217720 U CN 207217720U
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- Prior art keywords
- heating
- battery
- temperature
- resistance wire
- cell heater
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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
It the utility model is related to a kind of battery heating system, including battery management system and heating relay, the battery heating system also includes cell heater, cell heater includes heating plate, the resistance wire being arranged on heating plate and the temperature sensor for being used to detect cell heater temperature being arranged on heating plate, resistance wire is connected with heating relay, temperature sensor communication connection battery management system.In the utility model, after battery management system sends the instruction for disconnecting heating relay, temperature sensor gathers the temperature of cell heater, if the temperature sampling value of later moment in time is more than the temperature sampling value of previous moment, it is abnormal then to judge that heating relay occurs, battery management system sends the abnormal alarm instruction of heating relay, the risk that effectively prevent heating relay exception and can not report in time.
Description
Technical field
A kind of battery heating system is the utility model is related to, belongs to lithium ion power supply technical field of system security.
Background technology
With the support energetically of country, new energy cause flourishes, the pure electronic and plug-in mixing by the end of 2015
Power vehicle adds up volume of production and marketing and reaches 500,000, it is contemplated that will be more than 5,000,000 to the year two thousand twenty.It can be said that electric automobile industry is just
Show a kind of blowout and increase phenomenon, and correlation technique lifting has also been reached advanced world standards.Just because of electric car
The high speed development of industry, also the safety problem for electric car bring test.Its safety problem is mainly manifested in the pipe to battery
In reason, when there are abnormal conditions in battery, can and alarm or the whole loop of cut-out to prevent abnormal conditions from continuing to deteriorate
As the main task in battery management.
At present, battery low temperature charging problems are not improved preferably yet, so to the demand of heating system just increasingly
Greatly, a potential safety hazard but is also brought simultaneously.If can not be monitored well to heating process, when failure mould occurs for heating
After formula, larger harm can be produced to battery, the lighter can bring it about hydrojet, serious to produce on fire and blast wind
Danger.
Utility model content
The purpose of this utility model is to provide a kind of battery heating system, for solving to work as heating in battery heating system
Relay can not report this technical problem in time when occurring abnormal.
In order to solve the above technical problems, the utility model provides a kind of battery heating system, including battery management system
With heating relay, the battery heating system also includes cell heater, and the cell heater includes heating plate, is arranged on institute
The temperature for being used to detect the cell heater temperature stated the resistance wire on heating plate and be arranged on the heating plate passes
Sensor, the resistance wire are connected with the heating relay, and the temperature sensor communication connects the battery management system.
Further, the temperature sensor is arranged on the centre position of heating plate.
Further, the heating plate includes aluminum heat conducting plate.
Further, the resistance wire is S-shaped is arranged on the heating plate.
Further, the resistance wire of S-shaped arrangement is provided with least two rows, each to arrange resistance wire series connection.
Further, the end of incoming cables of the resistance wire and leading-out terminal are located at the side of the heating plate.
The beneficial effects of the utility model are：
Battery management system gathers cell heater after the instruction for disconnecting heating relay is sent by temperature sensor
Temperature, if the temperature sampling value of later moment in time be more than previous moment temperature sampling value, judge heating relay occur
It is abnormal, the abnormal alarm instruction of heating relay is sent, effectively prevent and lack in battery heating process to heating relay
Monitoring, the risk that can not be reported in time when it occurs abnormal.
Further, temperature sensor is arranged on to the centre position of heating plate, ensure that the accurate of temperature detection numerical value
Property.
Brief description of the drawings
Fig. 1 is the circuit diagram of battery heating system；
Fig. 2 is the structure chart of cell heater；
Fig. 3 is the schematic diagram of heating plate；
Fig. 4 is the strategic process figure of battery heating system.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
Under cryogenic, heated using battery heating system to Vehicular battery.Battery heating of the present utility model
The circuit diagram of system is as shown in figure 1, including cell heater (heating element heater), heating relay and battery management system BMS.
Wherein, cell heater includes heating plate, the resistance wire being arranged on heating plate and is arranged on heating plate to be used to detect
The temperature sensor of cell heater temperature.Resistance wire is connected with heating relay, temperature sensor connection battery management system
BMS, battery management system BMS control connection heating relay.
After relay closure is heated, cell heater is heated to Vehicular battery.After temperature needed for battery is reached,
Battery management system BMS can send the order for disconnecting heating relay, stop heating to battery.And when heating relay loses
During effect, battery still can persistently be heated after reaching required temperature, and ultimately result in battery the hydrojet even hidden danger of blast on fire.
In order to detect the state of above-mentioned heating relay, referring to the drawings 2, use is additionally provided with the heating plate of cell heater
In the temperature sensor 2 of detection cell heater temperature, temperature sensor 2 connects battery management system BMS.Wherein, wiring 3,
4 be respectively the inlet wire wire harness and outlet wire harness of resistance wire 1, and wiring 5 is the collection wire harness of temperature sensor 2.For accurate response
The temperature of cell heater, temperature sensor 2 are distributed in the center of heating plate, and temperature sensor 2 is selected NTC materials, adopted
Fixed with crimping.The temperature sensor can detect the temperature of cell heater in real time, and the temperature data collected is sent
Give battery management system BMS.The temperature data can be the true temperature value or reflection true temperature value to have converted
Resistance or magnitude of voltage.In the present embodiment, the temperature data is resistance.
Scheme as a further improvement, the heating plate 6 include aluminum heat conducting plate 7, and resistance wire 1 mainly passes through the aluminum heat conducting plate
7 are conducted heat.Certainly, aluminum heat conducting plate can also be substituted for other thermal conductive metal plates.Silicon is provided between resistance wire and heating plate
Glue-line, in order to insulate and heat conduction.
In addition, as shown in figure 3, to realize high-temperature insulation, the upper surface 8 of aluminum heat conducting plate 7 and the both ends of lower surface 9 are viscous
A strata imide film is pasted.In order to increase heating surface (area) (HS, resistance wire is S-shaped to be arranged on heating plate 6, the S-shaped arrangement
Resistance wire is provided with two rows, naturally it is also possible to is arranged to 1 row or multiple rows of.When resistance wire is arranged to multiple rows of, resistance wire is respectively arranged
Series connection.For the ease of wiring, the end of incoming cables (being connected with wiring 3) of resistance wire and leading-out terminal (being connected with wiring 4) are located at heating plate
Side.As other embodiments, the leading-out terminal of resistance wire and end of incoming cables can also be located at the not homonymy of heating plate 6.
Battery management system BMS receives the resistance data that temperature sensor sends over, and can parse resistance and enter
Row logic judgment, it is that temperature data is compared by front and rear recorded parsing resistance, and then judges the state of heating relay,
Specific strategy is as shown in Figure 4：
(1) needed for reaching when battery after heating-up temperature, battery management system BMS sends the order for disconnecting heating relay,
Cell heater stops heating to battery.
(2) temperature of temperature sensor collection cell heater, and it is sent to battery management system.
(3) battery management system records the temperature T1 of now heating plate.
(4) it is delayed after Smin, battery management system records the temperature T2 of now cell heater.
(5) if T2<T1, illustrate that heating relay is normal, stop the monitoring to heating relay；Otherwise, illustrate heating after
Electrical equipment is abnormal, adhesion fault occurs, and battery management system sends alarm command, in time reported relay status, and control
System disconnects relay all in battery heating system.
Specifically, delay time S could be arranged to 5min.Certainly, in order to strengthen the reliability of monitoring, temperature T1 and T2
The average value that can select repeatedly to measure, multiple Time delay measurement can also be carried out, such as 3 times, 4 inferior, comparative cell heaters
Temperature variations, if the temperature of cell heater persistently rises with the time, illustrate to heat relay abnormal.
The utility model judges the state of heating relay by the temperature monitoring to cell heater, and method is simple,
The temperature monitoring and the corresponding control strategy of increase to cell heater need to be only added in original heating system, can
Reflect the state of heating relay reliable and stablely, prevent wrong report when heating relay exception and fail to report situation, favorably
In the safety for ensureing battery and the person.
Claims (6)
1. a kind of battery heating system, including battery management system and heating relay, it is characterised in that the battery heating system
Also include cell heater, the cell heater includes heating plate, the resistance wire being arranged on the heating plate and set
Be used to detect the temperature sensor of the cell heater temperature on the heating plate, the resistance wire and the heating after
Electrical equipment is connected, and the temperature sensor communication connects the battery management system.
2. battery heating system according to claim 1, it is characterised in that the temperature sensor is arranged on heating plate
Centre position.
3. battery heating system according to claim 1 or 2, it is characterised in that the heating plate includes aluminum heat conducting plate.
4. battery heating system according to claim 1 or 2, it is characterised in that the resistance wire is S-shaped be arranged in it is described
On heating plate.
5. battery heating system according to claim 4, it is characterised in that the resistance wire of S-shaped arrangement is provided with least
Two rows, it is each to arrange resistance wire series connection.
6. battery heating system according to claim 5, it is characterised in that the end of incoming cables and leading-out terminal position of the resistance wire
In the side of the heating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668754.3U CN207217720U (en) | 2017-06-09 | 2017-06-09 | A kind of battery heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668754.3U CN207217720U (en) | 2017-06-09 | 2017-06-09 | A kind of battery heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207217720U true CN207217720U (en) | 2018-04-10 |
Family
ID=61811700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720668754.3U Active CN207217720U (en) | 2017-06-09 | 2017-06-09 | A kind of battery heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207217720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082189A (en) * | 2019-12-03 | 2020-04-28 | 东风柳州汽车有限公司 | New energy automobile battery pack heating device and control method |
-
2017
- 2017-06-09 CN CN201720668754.3U patent/CN207217720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082189A (en) * | 2019-12-03 | 2020-04-28 | 东风柳州汽车有限公司 | New energy automobile battery pack heating device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220114 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |