Battery Box Thermal Management Mounting Without Weld Corrosion
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Solution Overview
Problem
Existing battery technologies face challenges in ensuring safety performance, particularly due to the potential damage to thermal management components during welding, which can lead to corrosion and increased risk of accidents from high-temperature and high-pressure emissions.
Innovation Solution
A fixing member is used to penetrate through a thermal management component and bend towards its periphery, forming a blocking portion to fix it to the box body, thereby avoiding damage to the surface treatment and preventing corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding method is used to fix thermal management component to box body, then fixing strength is improved, but surface treatment of thermal management component is damaged leading to corrosion
Solution Approach 1:
The patent replaces the welding process with a mechanical fixing method using a fixing member that penetrates through the thermal management component and bends toward its periphery. This mechanical fixation achieves sufficient fixing strength without applying heat that would damage the surface treatment, thereby preventing corrosion and maintaining reliability of the thermal management component.
Solution Approach 2:
The fixing member acts as an intermediary element between the box body and the thermal management component. It provides the necessary mechanical connection and fixing strength while avoiding direct contact between the thermal management component and the box body, thus preventing corrosion through the surface treatment protection.
2Reliability
If thermal management component is installed using conventional methods, then temperature adjustment function is achieved, but installation complexity increases and surface treatment may be damaged
Solution Approach 1:
The patent replaces complex installation procedures with a simplified mechanical fixing method. The fixing member is inserted through the thermal management component and bent toward its periphery, creating a simple yet effective fixation that maintains the temperature adjustment function while reducing installation complexity and avoiding damage to surface treatment.
3Reliability
If fixing member is crimped to form blocking portion, then fixing reliability is improved, but manufacturing precision requirement increases
Solution Approach 1:
The fixing member is designed with a pre-formed bell-mouth opening that facilitates the crimping process. This preliminary structural design guides the crimping operation and ensures that the blocking portion forms correctly, improving fixing reliability while reducing the actual precision requirements during the crimping manufacturing step.
Data Source
AI summary
Embodiments of the present application provide a box, a battery, an electrical apparatus, and a method and an apparatus for preparing a battery. The box (10) includes a box body for accommodating a plurality of battery cells; a fixing member fixedly connected to the box body; and a thermal management component provided with a fitting hole for guiding the fixing member to penetrate through the thermal management component, the thermal management component being used for adjusting temperatures of the plurality of battery cells; wherein the fixing member is configured to penetrate through the fitting hole and bend toward the periphery of the fitting hole, so as to fix the thermal management component to the box body. The box, the battery, the electrical apparatus, and the method and apparatus for preparing a battery in the embodiments of the present application are capable of improving the safety performance of the battery.