Electrical Connection Assembly for Draw-Out Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electrical connection devices with a draw-out structure face a contradiction between assembly difficulty and performance, as increased clamping force improves contact area and stability but increases installation resistance, while reduced clamping force leads to insufficient engagement and heat issues.
Innovation Solution
The electrical connection device separates insertion and clamping operations, using a flexible assembly to absorb position deviations and provide synchronized clamping force, reducing friction and contact resistance, and incorporating a linkage mechanism for synchronized operation of multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spring force of the tension spring is increased to improve clamping force and contact stability, then the contact area and contact stability are improved, but the installation resistance and friction between the main body busbar and contact pieces greatly increase
Solution Approach 1:
The patent divides the electrical connection device into multiple independent contact pieces arranged in rows, each capable of independent movement and clamping. This segmentation allows the busbar to be gradually engaged by multiple contact points rather than requiring high force from a single clamping mechanism, reducing installation resistance while maintaining contact stability.
Solution Approach 2:
The contact pieces are designed to be dynamically movable rather than fixed, allowing them to adjust their position and angle during the insertion process. This dynamic capability enables the contact pieces to adapt to the busbar's position and angle deviations, ensuring reliable contact without requiring excessive clamping force during installation.
2Reliability
If the clamping force is increased to ensure sufficient engagement and reduce contact resistance, then the contact area increases and contact resistance decreases, but the operating force required for insertion becomes too large
Solution Approach 1:
The contact pieces are designed to automatically clamp onto the busbar through their own elastic deformation and positioning mechanisms during insertion, without requiring external actuation or high operating force. The spring-loaded contact pieces self-adjust to engage the busbar, reducing the force needed by the operator while ensuring sufficient contact area.
Solution Approach 2:
The patent changes the physical parameters of the contact pieces, making them elastic and movable rather than rigid. This allows the contact pieces to deform and adapt to the busbar's position, increasing the contact area through elastic deformation rather than requiring high clamping force, thus reducing the operating force needed for insertion.
3Manufacturing precision
If the contact pieces are made rigid to maintain precise positioning and clamping, then the manufacturing precision is improved, but the adaptability to position and angle deviations decreases
Solution Approach 1:
The contact pieces are designed with dynamic movement capabilities, allowing them to adjust their position and angle during insertion. This dynamic design maintains manufacturing precision through controlled movement while simultaneously providing adaptability to position and angle deviations of the busbar, resolving the contradiction between rigidity and flexibility.
Solution Approach 2:
The patent changes the physical state of the contact pieces from rigid to elastic-movable, allowing them to deform within certain limits while maintaining precise positioning. This enables the contact pieces to adapt to busbar deviations through elastic deformation rather than requiring perfect manufacturing precision, while still ensuring reliable electrical contact.
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
This solution allows for efficient insertion with reduced operational force, increased contact area and stability, and lower contact resistance, reducing heat generation and extending the service life of electrical appliances.
Implementation Method 1
the flexible assembly absorbs the offset of the contact pieces by its own deformation
Implementation Method 2
The spring force generated by the deformation of the tension spring 103 acts on the contact pieces to clamp the two rows of contact pieces inward
Data Source
AI summary
An electrical connection device is connected between a main body and a draw-out device of an electrical appliance having a draw-out structure. The electrical connection device includes: a draw-out device connection assembly being fixed on the draw-out device and electrically connected to inlet and outlet ends of the draw-out device; a main body connection assembly including contact pieces with a clamping mechanism, wherein the clamping mechanism makes the contact pieces close to and clamp main body busbars; and a flexible assembly connecting the draw-out device connection assembly and the main body connection assembly to form a conductive path. The contact pieces of the main body connection assembly are offset by adapting to the position deviation of the main body busbars. A linked electrical connection assembly is formed by the described electrical connection devices and an electrical appliance using the described electrical connection devices or the electrical connection assembly.