Bonded Joint Component for Circuit Board Miniaturization
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Solution Overview
Problem
Conventional electronic devices with screw joint components fixed to circuit boards face challenges in miniaturization and component reduction, leading to increased complexity and manufacturing inefficiencies.
Innovation Solution
The use of a joint component with an insertion portion, a protruding portion, and a support portion, bonded to the circuit board using a bonding agent, allows for secure fixation without passing through the circuit board, reducing the size and number of components, and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional screw joint component is used on a circuit board, then the mechanical connection is reliable, but the device size increases and manufacturing complexity increases
Solution Approach 1:
The joint component integrates multiple functions into a single structure: the insertion portion combines with the circuit board opening, the protruding portion provides both positioning and bonding surface, and the support portion extends to provide additional bonding area. This merging of functions reduces the number of separate components and assembly steps while maintaining reliable mechanical connection.
Solution Approach 2:
The joint component is designed to be inserted into an opening of the circuit board, with the insertion portion fitting within the board thickness. The protruding portion extends from one side while the support portion extends from the other side, creating a nested configuration where the joint component is partially embedded in the circuit board structure.
2Strength
If external nuts are used for joint components, then the mechanical fastening is secure, but the number of components increases and miniaturization is hindered
Solution Approach 1:
The joint component integrates the fastening function directly into its structure through the protruding portion that extends from the insertion portion. This eliminates the need for separate external nuts while maintaining secure mechanical fastening capability through the bonding agent applied to the protruding portion.
Solution Approach 2:
The design extracts the essential fastening function from the traditional screw-nut assembly and incorporates it directly into the joint component itself. The protruding portion serves as the integrated fastening element, removing the need for separate external nuts and reducing overall device volume.
3Reliability
If multiple separate components are used for joint fixation, then the assembly is robust, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The joint component consolidates multiple fixation functions into a single integrated structure with an insertion portion, protruding portion, and support portion. This reduces the number of discrete components that need to be handled, positioned, and assembled, thereby improving manufacturing efficiency while maintaining assembly robustness through the integrated design.
4Ease of manufacture
If the joint component structure is simplified, then manufacturing is easier, but the bonding area and mechanical strength may be reduced
Solution Approach 1:
The joint component features local quality variations with distinct portions optimized for specific functions: the insertion portion for board integration, the protruding portion for primary bonding and fastening, and the support portion for additional bonding area and structural support. Each portion has tailored geometry to optimize its local function while maintaining overall manufacturing simplicity.
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 configuration enables a more compact and efficient assembly of electronic devices by reducing the size of the joint component and minimizing the risk of bonding agent leakage, while enhancing the bonding strength and ease of assembly.
Implementation Method 1
The bonding agent is provided between the insertion portion and the first opening and between the support portion and the first face, and configured to bond the circuit board and the joint component with each other.
Data Source
AI summary
According to one embodiment, electronic device includes casing, circuit board, joint component, and bonding agent. The circuit board is held in the casing, includes first face and second face opposite the first face, and includes a first opening provided on the first face. The joint component includes: insertion portion that is inserted into the first opening; protruding portion that protrudes from the insertion portion toward a side opposite the second face; first end of the protruding portion provided at a side opposite the second face; and support portion extended along the first face. The joint component includes a second opening provided on the first end, extended to the insertion portion, and into which a joint tool is inserted. The bonding agent is provided between the insertion portion and the first opening and between the support portion and the first face, and bonds the circuit board and the joint component.