A reliability test method for coolant leakage of power battery liquid cooling system
A technology of power battery and testing method, which is applied in the direction of measuring electricity, measuring devices, measuring heat, etc., and can solve the problems of no power battery liquid cooling system coolant leakage test and evaluation method, electric vehicle fire, battery cell short circuit, etc.
Active Publication Date: 2021-03-09
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The power battery liquid cooling system will inevitably leak coolant during use. After the coolant leaks, the battery cells may be short-circuited, and flammable gases will be generated inside the battery system, which will eventually lead to fire or explosion of the electric vehicle.
However, there is currently no test and evaluation method for the leakage of coolant in the liquid cooling system of the power battery, and there is no test platform for the leakage of coolant in the liquid cooling system of the power battery.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0036] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for testing the reliability of coolant leakage in a liquid cooling system of a power battery, comprising the following steps: transforming the liquid cooling system of a power battery; building a test platform: fixing the power battery system The low-voltage wiring harness of the system is connected to the CAN communication information collection system, and the CAN communication information collection system of the power battery system is debugged on the console, and the temperature and voltage of the single cell of the power battery system are monitored in real time; check after the test: test The insulation resistance value of the power battery system, check the communication status of the power battery system, unpack and check the key components of the power battery system. A power battery liquid cooling system coolant leakage reliability test method described in the present invention can truly simulate the application scene of coolant leakage in the power battery liquid cooling system of a new energy vehicle, and is a useful tool for the safety test and application of the power battery liquid cooling system. Evaluations provide support.
Description
technical field [0001] The invention belongs to the technical field of power battery system safety testing and evaluation, and in particular relates to a method for testing the reliability of cooling liquid leakage of a power battery liquid cooling system. Background technique [0002] As the core component of new energy vehicles, lithium-ion power batteries directly determine key technical parameters such as cruising range, life and safety of new energy vehicles. As the energy density of the power battery system continues to rise, the heat generated by the power battery system during charging and discharging will also increase. The thermal management system can effectively regulate the working temperature of the power battery system to ensure the normal cycle of the power battery system. . The power battery thermal management system can be divided into air cooling, liquid cooling and phase change material cooling according to the heat transfer medium. Among them, the liqu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/385G01R31/389G01K13/00
CPCG01R31/385G01R31/389G01K13/00
Inventor 徐月王芳刘磊何兴王金伟魏墨晗
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD