Power battery pack thermal management system air tightness detection tool and detection system

A technology for air tightness detection and power battery, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problems such as threatening the personal safety of drivers and passengers, potential safety hazards, losses, etc., and achieves convenient operation, convenient maintenance, simple structure

Pending Publication Date: 2018-12-21
江苏和中普方新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the safe operation of the battery thermal management system, the battery thermal management system must be required to prevent leakage; to avoid short circuit caused by cooling water entering the battery pack, causing danger, causing heavy losses, and even threatening the personal safety of drivers and passengers
Therefore, before the battery system leaves the factory, the sealing of the battery thermal management system is generally tested. Once the battery management system leaks and the battery pack enters water, it will inevitably cause safety hazards.

Method used

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  • Power battery pack thermal management system air tightness detection tool and detection system
  • Power battery pack thermal management system air tightness detection tool and detection system
  • Power battery pack thermal management system air tightness detection tool and detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-Figure 3 As shown, an airtightness detection tool for a thermal management system of a power battery pack in this embodiment includes a ventilation rod 1, an expansion rod 2 and an elastic expansion part 3, and the elastic expansion part 3 is sleeved on the ventilation On the outer wall of one end of the rod 1 , the expansion rod 2 is screwed on the outer wall of the middle part of the ventilation rod 1 and its one end is arranged close to the elastic expansion part 3 . When in use, first tighten the expansion rod 2 on the ventilation rod 1, and then screw the ventilation rod 1. When the ventilation rod 1 moves downward, it also drives the expansion rod 2 to move downward. The expansion rod 2 can push the elastic The expansion part 3 moves downward and realizes the expansion fit with the air inlet.

[0038] Wherein, an air tightness detection channel 17 is opened in the middle of the ventilation rod 1 along its axial direction.

[0039] In the airtig...

Embodiment 2

[0053] Such as Figure 4 As shown, an air tightness detection system for a thermal management system of a power battery pack in this embodiment includes the detection tool 100, a high-pressure gas source 200, a detector 300, a water cooling plate 400 for a thermal management system of a power battery, and the ventilation One end of the rod 1 is plugged into the water inlet 401 of the water-cooled plate 400 of the power battery thermal management system and sealed with the inner wall of the water inlet 401 through the elastic expansion part 3 , and the other end of the ventilation rod 1 is connected to the water inlet 401. The detector 300 is connected through a pipeline 500 , and the detector 300 is connected with a high-pressure gas source 200 through the pipeline 500 .

[0054] When the detection system of this embodiment is in use, the detection tooling is installed in the air inlet of the water-cooled plate of the thermal management system of the power battery, and then th...

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Abstract

The invention relates to a power battery pack thermal management system air tightness detection tool and detection system. The detection tool comprises a vent rod, a swelling rod and an elastic swelling part; and the elastic swelling part is arranged on the outer side wall of one end of the vent rod in a sleeving mode, the swelling rod is connected to the outer side wall of the middle of the ventrod in a threaded mode, and one end of the swelling rod is arranged to be close to the elastic swelling part. According to the air tightness detection tool, by arranging the elastic swelling part on the outer side wall of the vent rod, a connection piece can achieve seal connection with a power battery pack management system through the elastic swelling part when being connected to the power battery pack management system, and the detection tool is simple in structure and convenient to operate and maintain.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to an air tightness detection tool and detection system for a thermal management system of a power battery pack. Background technique [0002] As the core component of a pure electric vehicle, the safety of the battery system will directly affect the vehicle performance and driving safety of the electric vehicle. In order to ensure the safe operation of the battery thermal management system, the battery thermal management system must be required to prevent leakage; to prevent the cooling water from entering the battery pack and causing a short circuit, causing danger, causing heavy losses, and even threatening the personal safety of drivers and passengers. Therefore, before the battery system leaves the factory, the sealing of the battery thermal management system is generally tested. Once the battery management system leaks and the battery pack enters water, it will inevitably ca...

Claims

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Application Information

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IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 贾志佳周征利赵锋邓翔杨三虎
Owner 江苏和中普方新能源科技有限公司
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