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Battery pack heating device, battery pack and hybrid electric vehicle

A technology for heating devices and battery packs, which is applied in the automotive field and can solve problems such as poor heating performance

Inactive Publication Date: 2018-09-07
北京长城华冠汽车技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a battery pack heating device, a battery pack and a hybrid electric vehicle to solve the technical problem of poor heating performance of the battery pack heating device in the prior art

Method used

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  • Battery pack heating device, battery pack and hybrid electric vehicle
  • Battery pack heating device, battery pack and hybrid electric vehicle
  • Battery pack heating device, battery pack and hybrid electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The battery pack heating device provided in this embodiment, such as Figure 3 to Figure 4 As shown, the heat exchanger 2 is included; the heat exchanger 2 is provided with an exhaust gas channel 21 and a coolant channel 22; the inlet of the exhaust gas channel 21 is used to communicate with the exhaust port of the hybrid vehicle, and the outlet of the exhaust gas channel 21 is used to communicate with the exhaust port of the hybrid vehicle. External communication; the inlet of the cooling liquid passage 22 is connected with the outlet of the battery pack cooling liquid passage, and the outlet of the cooling liquid passage 22 is connected with the entrance of the battery pack cooling liquid passage, and the cooling liquid can flow between the cooling liquid passage 22 and the battery pack cooling liquid passage. middle flow; heat exchanger 2 is used to transfer the heat of the exhaust gas to the cooling liquid.

[0037] Wherein, after the hybrid electric vehicle is star...

Embodiment 2

[0060] The battery pack 1 provided in this embodiment includes the battery pack 1 body and the battery pack heating device described in Embodiment 1, and the battery pack heating device is used to heat the battery pack 1 body.

[0061] After the hybrid vehicle is started, the exhaust gas discharged from the exhaust port flows into the exhaust gas channel 21 through the inlet of the exhaust gas channel 21, and then is discharged to the outside through the outlet of the exhaust gas channel 21. The outlet of the channel 22 flows out into the cooling liquid channel 22, the heat exchanger 2 transfers the heat of the exhaust gas to the cooling liquid in the cooling liquid channel 22, the temperature of the cooling liquid rises, and then the cooling liquid flows into the battery pack through the outlet of the cooling liquid channel 22 1 into the inlet of the body cooling liquid channel 22, thereby heating the body of the battery pack 1. The battery pack 1 provided in this embodiment ...

Embodiment 3

[0063] The hybrid electric vehicle provided in this embodiment includes the battery pack heating device described in Embodiment 1 or the battery pack 1 described in Embodiment 2.

[0064] After the hybrid vehicle is started, the exhaust gas discharged from the exhaust port flows into the exhaust gas channel 21 through the inlet of the exhaust gas channel 21, and then is discharged to the outside by the outlet of the exhaust gas channel 21, and the cooling liquid in the battery pack 1 is discharged from the outlet of the battery pack cooling liquid channel. After flowing out, it enters the cooling liquid channel 22, and the heat exchanger 2 transfers the heat of the exhaust gas to the cooling liquid in the cooling liquid channel 22. The temperature of the cooling liquid rises, and then the cooling liquid flows into the cooling liquid channel of the battery pack through the outlet of the cooling liquid channel 22. Inlet, thereby heating the battery pack 1 . The battery pack heat...

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PUM

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Abstract

The invention provides a battery pack heating device, a battery pack and a hybrid electric vehicle and relates to the technical field of vehicles. The battery pack heating device comprises a heat exchanger; the heat exchanger is internally provided with a waste gas channel and a coolant channel; an inlet of the waste gas channel is used for being communicated with an exhaust hole of the hybrid electric vehicle, and an outlet of the waste gas channel is used for being communicated with the external; an inlet of the coolant channel is communicated with an outlet of a battery pack coolant channel, an outlet of the coolant channel is communicated with an inlet of the battery pack coolant channel, and a coolant can flow in the coolant channel and the battery pack coolant channel; and the heat exchanger is used for transferring heat of waste gas to the coolant. By adopting the battery pack heating device, small circulation water of an engine does not need to be shunted, so that the heating performance of the hybrid electric vehicle is avoided from being influenced; and in addition, compared with a heater in the prior art, the battery pack heating device is relatively low in electricity consumption, can greatly slows down the dropping speed of battery capacity of the battery pack and has relatively small influence on the endurance mileage of the hybrid electric vehicle.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a battery pack heating device, a battery pack with the battery pack heating device, and a hybrid electric vehicle with the battery pack heating device or the battery pack. Background technique [0002] With the popularization of hybrid electric vehicles, the requirements for the mileage and environmental adaptability of the battery pack are getting higher and higher. Since the normal operating temperature of the battery pack is 5-35°C, in the cold weather in Northeast China, the power of the battery will decrease. plummeted. Heating the battery pack has become an effective method to ensure the power of the battery pack. At present, there are two heating methods for the battery pack of hybrid electric vehicles. One is to heat the battery pack with small circulating water when the engine is warming up, and the other is to use the battery pack installed in the battery pack to he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/615H01M10/625H01M10/6567B60L11/18H01M50/249
CPCH01M10/615H01M10/625H01M10/6567B60L58/27H01M50/20Y02T10/70Y02E60/10
Inventor 崔亮
Owner 北京长城华冠汽车技术开发有限公司