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Battery module temperature sensor and battery module

A technology of temperature sensor and battery module, applied in the field of temperature sensor, can solve the problem that the direct monitoring of the highest temperature of the module cannot be realized.

Pending Publication Date: 2020-10-23
JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then use the method of experimental calibration to determine the actual temperature and the temperature deviation of the sensor layout position for correction. These solutions cannot realize the direct monitoring of the maximum temperature of the module, and can only correct the factory state. For the thermal characteristics generated during the life cycle Changes or deviations caused by changes in sensor position due to vibrations are powerless

Method used

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  • Battery module temperature sensor and battery module
  • Battery module temperature sensor and battery module
  • Battery module temperature sensor and battery module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 2 , image 3 , Figure 4 , Figure 5 Shown is Embodiment 1 of the present invention, in which a battery module temperature sensor is provided, including a temperature probe 9, a flexible thin film circuit 8 and a sensor plug connector 7, the temperature probe 9 is arranged at the lower end of the flexible thin film circuit 8, The upper end of the flexible film circuit 8 is connected to the sensor plug connector 7, and the sensor plug connector 7 is also connected to the battery management system sampling harness to realize signal transmission. The temperature probe 9 is arranged between the cells of the battery module to collect temperature signals. Installed and fixed on the module bracket of the battery module, specifically, the sensor plug connector 7 is installed and fixed at the end of the battery module.

[0039] The battery management system sampling harness is also called the BMS sampling line, which is a type of flexible circuit board and can...

Embodiment 2

[0051] Embodiment 2 of the present invention is an improvement made on the basis of Embodiment 1. The difference between Embodiment 2 of the present invention and Embodiment 1 is that: Figure 12 As shown, the sensor plug connector 7 is equipped with a plug-in terminal, the bottom end of the plug-in terminal is electrically connected to the flexible film circuit 8, the plug-in terminal can be a pin 10, and the battery management system sampling harness is provided with a connector 12 The connector 12 is correspondingly provided with a socket 11 , the socket 11 is a metal hole with elasticity, and the connector 12 is combined with the plug-in terminal to realize the electrical connection with the flexible film circuit 8 .

[0052] The bottom end of the contact pin 10 is soldered to the flexible film circuit 8, and the top end protrudes. A slot can be arranged in the sensor plug 7, the top of the pin 10 is located in the slot, and the connector 12 can be inserted into the slot. ...

Embodiment 3

[0055] Such as Figure 8 , Figure 9 , Figure 10 As shown, this embodiment provides a battery module, including a plurality of battery cells 14, and also includes the battery module temperature sensor described in Embodiment 1 or Embodiment 2, the temperature probe 9 and the flexible film of the battery module temperature sensor The circuit 8 is arranged between the cells 14 to collect temperature signals.

[0056] The sensor plug connector 7 of the battery module temperature sensor is connected to the sampling wire harness 13 of the battery management system to realize the electrical connection with the flexible thin film circuit 8 . The battery module is provided with a main interface 15, and the battery management system sampling harness 13 is connected to the main interface 15, and finally transmits signals externally through the main interface 15.

[0057] A flexible foam pad can be provided between the battery cells 14 corresponding to the temperature probes 9 to pre...

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Abstract

The invention discloses a battery module temperature sensor and a battery module, and solves a technical problem that a battery module temperature sensor in the prior art is not ideal in temperature measurement effect. The battery module temperature sensor comprises a temperature probe, a flexible film circuit and a sensor connecting plug, wherein the temperature probe is arranged at a lower end of the flexible film circuit, an upper end of the flexible film circuit is connected with the sensor connecting plug, the sensor connecting plug is further connected with a sampling wire harness of a battery management system to achieve signal transmission, the temperature probe is arranged between battery cells of the battery module to collect temperature signals, and the sensor connecting plug isfixedly installed on a module support of the battery module. The battery module temperature sensor is advantaged in that the temperature probe can be conveniently and quickly arranged in the heat accumulation area in the center of the battery module, and the real temperature of the battery module can be directly monitored.

Description

technical field [0001] The invention relates to a temperature sensor, in particular to a battery module temperature sensor. The invention also relates to a battery module. Background technique [0002] Among various energy storage technologies, lithium-ion batteries have gradually become the best choice for industrial and vehicle energy storage devices due to their high energy density characteristics and high commercialization prospects. However, the performance of large-capacity, high-power energy storage battery systems is sensitive to temperature changes. The long-term high and low temperature environment and the accumulation of temperature differences in the system will affect the life and performance of the battery, and may cause safety problems. Accurate and reliable battery temperature acquisition is the basis for the thermal management system to work. A temperature sensor that can conveniently and accurately place the temperature probe in a suitable position inside...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/48H01M10/42H01M2/10H01M10/0525
CPCH01M10/0525H01M10/4285H01M10/486Y02E60/10
Inventor 韩振亚
Owner JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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