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Battery module

A battery module and battery technology, applied in the direction of batteries, battery components, secondary batteries, etc., can solve the problem that the width and thickness of the connecting piece cannot be too large, the internal space size of the battery module is limited, and the battery module is affected. Discharge power and other issues to achieve the effect of avoiding power limit in advance, optimizing structure and performance, and optimizing performance

Active Publication Date: 2020-12-29
CONTEMPORARY AMPEREX TECH CO
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventors have found that there are at least the following problems in the prior art: due to the limitation of the internal space size of the battery module, and considering the influence of manufacturing and cost, the width and thickness of the connecting piece cannot be made very large
Under high-power working conditions, due to the limitation of the over-current area of ​​the connecting piece, the temperature of the connecting piece will rise sharply, while the temperature inside the battery will rise slowly. The temperature difference between the two is huge, which will cause the battery module to advance Limit power, which affects the discharge power of the battery module

Method used

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Embodiment Construction

[0050] Combine below Figure 1 to Figure 14 The technical solution provided by the present invention is described in more detail.

[0051] see Figure 1 to Figure 14 , the embodiment of the present invention provides a battery module, including a battery 1 , a wiring harness board 2 , a circuit board 3 , a pressing member 4 and a temperature collection assembly 5 . The battery 1 includes a top cover 11 . The wiring harness plate 2 is disposed on the top outside of the top cover 11 . The circuit board 3 is arranged on a side of the wiring harness board 2 away from the battery 1 . The pressing part 4 is installed on the wiring harness plate 2 . The temperature collection component 5 includes a thermistor 51 , and the thermistor 51 is electrically connected with the circuit board 3 . The pressing part 4 presses the thermistor 51 of the temperature collection assembly 5 , so that the thermistor 51 is pressed against the top cover 11 .

[0052] The optional structure of each ...

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Abstract

The invention discloses a battery module, relates to the technical field of batteries, and is used for optimizing the structure of the battery module. The battery module comprises a battery, a wiringharness plate, a circuit board, a pressing piece and a temperature collecting assembly, wherein the battery comprises a top cover, the wire harness plate is arranged on the outer side of the top of the top cover, the circuit board is arranged on the side, away from the battery, of the wiring harness board, the pressing piece is installed on the wire harness plate, the temperature collecting assembly comprises a thermistor which is electrically connected with the circuit board, and the compressing piece compresses the thermistor of the temperature collecting assembly so that the thermistor andthe top cover are compressed. According to the battery module provided by the technical scheme, the temperature acquisition assembly acquires the temperature of the battery top cover, the temperaturetransmission path is short, the temperature transmission response is fast, temperature loss is small, and measurement is accurate.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module. Background technique [0002] The normal working temperature of the battery module is between -30°C and 55°C. If the limit temperature is exceeded, the battery module will limit the discharge power to realize the safety protection of the battery module. [0003] In the related art, the temperature of the battery module is collected in the following way: the temperature on the connecting piece is collected through a thermistor arranged on the flexible circuit board, and the temperature of the connecting piece is used as the internal temperature of the battery. In actual situations, the temperature on the connection plate is high, while the temperature inside the battery is low. If the difference between the two is large, the battery module will limit the power in advance, which will affect the performance of the battery module. [0004] At present, all vehicle...

Claims

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Application Information

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IPC IPC(8): H01M10/48
CPCH01M10/486H01M10/482H01M2220/20H01M50/209H01M50/505H01M50/519H01M50/581Y02P70/50H01M50/284H01M50/249H01M50/543H01M50/298H01M50/271H01M10/0481
Inventor 曹根陈思杭姚己华黄小腾
Owner CONTEMPORARY AMPEREX TECH CO
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