Protective Pressure Plate for Battery Module Wire Safety
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Solution Overview
Problem
The existing battery modules face safety and stability issues due to exposed wires that can be deformed or broken under external forces, leading to potential disconnection and instability.
Innovation Solution
A protective pressure plate with recessed side surfaces and a flexible buffering member is used to fix and protect the circuit board and bonding wires, preventing deformation and disconnection by providing a secure and cushioned environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wires are directly exposed to the outside, then the battery module structure is simple, but the wires are easily deformed or broken under external forces
Solution Approach 1:
The patent introduces a protective pressure plate as an intermediary component between the external environment and the bonding wires. This pressure plate with recessed side surfaces acts as a protective mediator that shields the wires from external forces while maintaining the overall structural simplicity of the battery module.
Solution Approach 2:
The recessed side surfaces of the pressure plate provide beforehand cushioning protection for the bonding wires. By pre-positioning the protective structure with recessed areas, the wires are shielded from external forces before any deformation or breakage can occur, ensuring connection stability.
2Reliability
If the rigidity of packaging housing is increased to protect wires, then wire protection is improved, but the battery module weight increases
Solution Approach 1:
Instead of increasing the overall rigidity of the packaging housing, the patent applies local quality enhancement by adding a protective pressure plate specifically at the wire locations. The recessed side surfaces provide localized protection exactly where needed, maintaining lightweight construction elsewhere in the battery module.
Solution Approach 2:
The protective pressure plate serves as a lightweight intermediary component that provides wire protection without requiring the entire packaging housing to be reinforced. This mediator approach allows targeted protection while maintaining overall module lightness.
3Reliability
If bonding wires are used to connect circuit board and busbar, then electrical connection is achieved, but the wires are vulnerable to external forces
Solution Approach 1:
The protective pressure plate with recessed side surfaces acts as an intermediary protective structure that shields the bonding wires from external forces. This mediator component allows the electrical connection to function while protecting the vulnerable wires from mechanical damage.
Solution Approach 2:
The recessed side surfaces provide beforehand cushioning protection specifically for the bonding wires. By pre-positioning these protective recesses, the wires are shielded from external forces before they can cause deformation or breakage, maintaining electrical connection reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the safety and stability of the battery module by securely fixing the circuit board and protecting the wires from external forces, preventing breakage and disconnection, thus ensuring reliable operation.
Implementation Method 1
a flexible buffering member, the flexible buffering member is connected to the pressure plate body and disposed on the lower surface
Data Source
AI summary
The present disclosure relates to a protective pressure plate and a battery module. The protective pressure plate comprises a pressure plate body having a strip-like shape. The pressure plate body includes an upper surface and a lower surface that are opposed in a thickness direction of the pressure plate body and two side surfaces that are opposed in a width direction of the pressure plate body. At least one portion of each of the side surfaces is recessed toward a center line of the pressure plate body to form a protective recess. The upper surface of the pressure plate body has a maximum width greater than a maximum width of the lower surface. The protective pressure plate according to the embodiment of the present disclosure can be used to fix the circuit board and protect the bonding wires, thereby improving the use safety and stability of the battery module.