CN204279117U - A kind of automobile high voltage joint temperature detection structure - Google Patents
A kind of automobile high voltage joint temperature detection structure Download PDFInfo
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- CN204279117U CN204279117U CN201420773116.4U CN201420773116U CN204279117U CN 204279117 U CN204279117 U CN 204279117U CN 201420773116 U CN201420773116 U CN 201420773116U CN 204279117 U CN204279117 U CN 204279117U
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Abstract
The utility model discloses a kind of automobile high voltage joint temperature detection structure, comprise battery pack, and the controller to be connected with battery pack by high-voltage relay and high-tension connector, high-tension connector is provided with the temperature detecting unit be connected with controller, temperature detecting unit comprises the temperature sensor being arranged on high-tension connector, and being connected to op amp and the temperature acquisition chip of temperature sensor successively, temperature acquisition chip is connected to controller.The utility model structure is simple, and cost is low, for available protecting battery core or other parts of battery system provide hardware supported from high temperature injury, also on the basis of this structure, sends to car load to remind driver this fault.
Description
Technical field
The utility model belongs to Control of Electric Vehicles field, is specifically related to a kind of detection architecture that can detect electric automobile high-voltage system high pressure electrical connection place temperature rise.
Background technology
Electrokinetic cell system is that electric automobile energy stores and exports body, its Energy Transfer is to all needing by electric load by power cable, connecting copper bar or adapter homenergic transmission body, and these transmit bodies in automobile use procedure due to the impact of the factors such as vibration, maintenance, impact, the problems such as connection loosens, contact resistance rising can be caused, thus cause junction temperature to raise, the temperature rise of junction is transferred to battery core by conductive equipments such as cables, just may damage battery core cause system to work when temperature rise exceedes battery core tolerance range.The problem of loosening can cause arcing on fire time serious, finally causes electronlmobil safety misadventure.
Traditional high-pressure system connects the problem of loosening will loosen risk averse by design in early stage fastening schemes, but the high voltage joint of often dismounting or plug maintenance, it loosens or contact resistance becomes large risk and but can not evade completely, therefore designs actv. passive security means and evades this risk and seem particularly necessary.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of automobile high voltage joint temperature detection structure, avoids high-tension connector and high pressure service switch temperature to raise the risk damaging battery core or system.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of automobile high voltage joint temperature detection structure, comprise battery pack and high-voltage relay, one end of high-voltage relay is connected to battery pack, the other end is connected to high-tension connector, the control coil of high-voltage relay is connected to controller, high-tension connector is provided with the temperature detecting unit be connected with controller, temperature detecting unit comprises the temperature sensor being arranged on high-tension connector, and being connected to op amp and the temperature acquisition chip of temperature sensor successively, temperature acquisition chip is connected to controller.
Preferably, loop, battery pack place is serially connected with high pressure service switch, and high pressure service switch is provided with temperature detecting unit.
Preferably, comprise two Battery pack groups, high pressure service switch is arranged between two Battery pack groups.
Preferably, one end of temperature sensor is connected to the mouth of op amp, other end ground connection by the first dropping resistor; The in-phase input end of op amp is by a filter capacitor ground connection, and inverting input is connected with mouth; One end of second dropping resistor is connected between the first dropping resistor and temperature sensor, and the other end connects temperature acquisition chip.
Preferably, high-tension connector comprises adaptor union electric conductor and connector insulator, and temperature sensor is arranged at connector insulator.
Preferably, controller is micro controller system.
A kind of automobile high voltage joint temperature detection structure of the present utility model is provided with temperature detecting unit at high-tension connector and high pressure service switch place, temperature sensor is utilized to detect the temperature of high voltage joint by op amp and temperature acquisition chip, the temperature detected is passed to controller in real time, allows controller realize real-time monitoring to this place's temperature.When temperature increases above certain limit, high-voltage relay can be controlled by controller and disconnect power loop, avoid high voltage joint temperature to raise the risk damaging battery core or system.The utility model structure is simple, and cost is low, for available protecting battery core or other parts of battery system provide hardware supported from high temperature injury, also on the basis of this structure, sends to car load to remind driver this fault.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model embodiment,
Fig. 2 is the structural representation of the utility model embodiment temperature detecting unit,
Fig. 3 is the structural representation of the utility model embodiment high-tension connector.
In figure: 1, battery pack, 2, high-voltage relay, 3, high-tension connector, 3.1, adaptor union electric conductor, 3.2, connector insulator, 4, controller, 5, temperature detecting unit, 5.1, temperature sensor, 5.2, op amp, the 5.3, first dropping resistor, 5.4, filter capacitor, 5.5, the second dropping resistor, 6, high pressure service switch, 7, other actuating units.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
A kind of automobile high voltage joint temperature detection structure, comprise battery pack 1 and high-voltage relay 2, one end of high-voltage relay 2 is connected to battery pack, and the other end is connected to high-tension connector 3, and the control coil of high-voltage relay 2 is connected to controller 4.
Battery pack 1 is high voltage power battery pack 1, for electric automobile energy stores and output unit.The status information of high voltage power battery pack 1 monitored by controller 4, controls the break-make of high-voltage relay 2, thus the electric energy controlling battery pack 1 exports and input.
High-tension connector 3 is provided with the temperature detecting unit 5 be connected with controller 4, temperature detecting unit 5 comprises the temperature sensor 5.1 being arranged on high-tension connector 3, and connect successively in op amp 5.2 and the temperature acquisition chip of temperature sensor 5.1, temperature acquisition chip is connected to controller 4.
The loop at battery pack 1 place is provided with high pressure service switch 6.The present embodiment comprises two Battery pack groups 1, and high pressure service switch 6 is arranged between two Battery pack groups 1, and high pressure service switch 6 is also provided with temperature detecting unit 5.One end of temperature sensor 5.1 is connected to the mouth of op amp 5.2, other end ground connection by the first dropping resistor 5.3; The in-phase input end of op amp 5.2 is by filter capacitor 5.4 ground connection, and inverting input is connected with mouth; One end of second dropping resistor 5.5 is connected between the first dropping resistor 5.3 and temperature sensor 5.1, and the other end connects temperature acquisition chip.High-tension connector 3 comprises adaptor union electric conductor 3.1 and connector insulator 3.2, and temperature sensor 5.1 is arranged at connector insulator 3.2.
High pressure service switch 6 and high-tension connector 3 overhaul at electronlmobil or change in electric process, need often dismounting or plug, these high voltage joints may be caused to occur loosening or the problem such as bad contact, contact resistance increase, these high voltage joint temperature can be made in conveying capacity process sharply to raise, even occur arcing equivalent risk on fire.
The Real-Time Monitoring to high voltage joint temperature such as high-tension connector 3, service switch is achieved by above structure controller 4; when temperature increases above certain limit; controller 4 can control high-voltage relay 2 and disconnect power loop, to protect battery core or other parts of battery system from high temperature injury.
Controller 4 is connected by other actuating units 7 of CAN and car load, after fault being detected, can be sent to other actuating units 7 and remind driver or passenger to overhaul, and to eliminate because contact resistance becomes, the temperature caused greatly raises, arcing equivalent risk even on fire.The function of controller 4 also accessible site in battery management system or other controllers 4 of automobile.
Controller 4 in the present embodiment is micro controller system.
As required above-mentioned temperature detecting unit 5 can also be set at high voltage joints such as frogs in practice.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (6)
1. an automobile high voltage joint temperature detection structure, comprise battery pack (1) and high-voltage relay (2), one end of described high-voltage relay (2) is connected to described battery pack, the other end is connected to high-tension connector (3), the control coil of described high-voltage relay (2) is connected to controller (4), it is characterized in that: high-tension connector (3) is provided with the temperature detecting unit (5) be connected with controller (4), described temperature detecting unit (5) comprises the temperature sensor (5.1) being arranged on described high-tension connector (3), and be connected to op amp (5.2) and the temperature acquisition chip of described temperature sensor (5.1) successively, described temperature acquisition chip is connected to described controller (4).
2. a kind of automobile high voltage joint temperature detection structure according to claim 1, it is characterized in that: described battery pack (1) loop, place is serially connected with high pressure service switch (6), described high pressure service switch (6) is provided with described temperature detecting unit (5).
3. a kind of automobile high voltage joint temperature detection structure according to claim 2, it is characterized in that: comprise battery pack (1) described in two groups, described high pressure service switch (6) to be arranged at described in two groups between battery pack (1).
4. a kind of automobile high voltage joint temperature detection structure according to claim 1, it is characterized in that: one end of described temperature sensor (5.1) is connected to the mouth of described op amp (5.2), other end ground connection by the first dropping resistor (5.3); The in-phase input end of op amp (5.2) is by a filter capacitor (5.4) ground connection, and inverting input is connected with mouth; One end of second dropping resistor (5.5) is connected between described first dropping resistor (5.3) and described temperature sensor (5.1), and the other end connects temperature acquisition chip.
5. a kind of automobile high voltage joint temperature detection structure according to claim 1, it is characterized in that: described high-tension connector (3) comprises adaptor union electric conductor (3.1) and connector insulator (3.2), and described temperature sensor (5.1) is arranged at described connector insulator (3.2).
6. a kind of automobile high voltage joint temperature detection structure according to claim 1, is characterized in that: described controller (4) is micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773116.4U CN204279117U (en) | 2014-12-09 | 2014-12-09 | A kind of automobile high voltage joint temperature detection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773116.4U CN204279117U (en) | 2014-12-09 | 2014-12-09 | A kind of automobile high voltage joint temperature detection structure |
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| CN204279117U true CN204279117U (en) | 2015-04-22 |
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| CN201420773116.4U Active CN204279117U (en) | 2014-12-09 | 2014-12-09 | A kind of automobile high voltage joint temperature detection structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427621A (en) * | 2016-09-30 | 2017-02-22 | 奇瑞汽车股份有限公司 | High-voltage loop control device and method for electric automobile |
| CN109193270A (en) * | 2018-08-30 | 2019-01-11 | 北京普莱德新能源电池科技有限公司 | A kind of connector |
| CN111717033A (en) * | 2020-06-30 | 2020-09-29 | 东风小康汽车有限公司重庆分公司 | Vehicle control system and vehicle control method |
| CN113533874A (en) * | 2020-04-21 | 2021-10-22 | 北京新能源汽车股份有限公司 | Virtual connection detection method and device for auxiliary instrument panel assembly, vehicle and storage medium |
| CN115236561A (en) * | 2022-06-13 | 2022-10-25 | 中国第一汽车股份有限公司 | Connector testing method and device |
-
2014
- 2014-12-09 CN CN201420773116.4U patent/CN204279117U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427621A (en) * | 2016-09-30 | 2017-02-22 | 奇瑞汽车股份有限公司 | High-voltage loop control device and method for electric automobile |
| CN106427621B (en) * | 2016-09-30 | 2019-07-09 | 奇瑞汽车股份有限公司 | A kind of high voltage loop of electric automobile control device and method |
| CN109193270A (en) * | 2018-08-30 | 2019-01-11 | 北京普莱德新能源电池科技有限公司 | A kind of connector |
| CN113533874A (en) * | 2020-04-21 | 2021-10-22 | 北京新能源汽车股份有限公司 | Virtual connection detection method and device for auxiliary instrument panel assembly, vehicle and storage medium |
| CN111717033A (en) * | 2020-06-30 | 2020-09-29 | 东风小康汽车有限公司重庆分公司 | Vehicle control system and vehicle control method |
| CN111717033B (en) * | 2020-06-30 | 2021-11-26 | 东风小康汽车有限公司重庆分公司 | Vehicle control system and vehicle control method |
| CN115236561A (en) * | 2022-06-13 | 2022-10-25 | 中国第一汽车股份有限公司 | Connector testing method and device |
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