Electrical Connector Block Preventing Chip Module Dislodgment
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Solution Overview
Problem
Existing electrical connector assemblies fail to securely fix chip modules to printed circuit boards, leading to potential dislodgment and damage, especially when the heat sink is locked to the board without accurate positioning.
Innovation Solution
An electrical connector design featuring an insulative housing with a retaining block and tabs, along with a pressing element and screws, creates a stable receiving space to prevent the chip module from coming off, ensuring accurate positioning and secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the heat sink is locked to the printed circuit board to provide pressure for the chip module, then the chip module is pressed firmly, but the chip module cannot be positioned accurately and may come off damaging the terminal
Solution Approach 1:
The pressing mechanism is divided into two independent components: the heat sink provides pressing force while the retaining block with positioning holes provides accurate positioning. This segmentation allows each component to specialize in one function, resolving the contradiction between providing firm pressure and achieving accurate positioning.
Solution Approach 2:
The retaining block acts as an intermediary component between the chip module and the heat sink. It receives the chip module through positioning holes that ensure accurate positioning, then transfers the pressing force from the heat sink to the chip module, thereby achieving both accurate positioning and firm pressure.
2Device complexity
If the chip module is assembled to the electrical connector without a retaining block, then the structure is simpler, but the chip module may come off and damage the terminal
Solution Approach 1:
The retaining block is pre-assembled to the electrical connector with positioning holes prepared in advance. When the chip module is installed, it is guided through these pre-positioned holes, ensuring accurate positioning and secure retention without requiring complex additional structures during the assembly process.
3Productivity
If the chip module is positioned without a retaining block and positioning holes, then the assembly process is faster, but the chip module cannot be accurately positioned on the printed circuit board
Solution Approach 1:
The positioning function is segmented from the pressing function and integrated into the retaining block. The positioning holes in the retaining block provide ready-made alignment features that guide the chip module into the correct position quickly, eliminating the need for complex positioning mechanisms and maintaining high assembly speed while achieving accurate positioning.
Data Source
AI summary
An electrical connector electrically connecting a chip module to a printed circuit board, and includes an insulative housing, a plurality of terminals received in the insulative housing and a block assembled to the insulative housing, the electrical connector comprises a bottom wall and a plurality of side walls, between the bottom wall and the side walls forms a receiving space to receive the chip module for assembling the chip module from top to bottom in vertical direction, the block is configured with frame shape and comprises a plurality of tabs, the insulative housing comprises a plurality of slots matched with the tabs, the block can prevent the chip module coming off from the insulative housing while the chip module received in the receiving space.