Clip With Extended Guiding Portions For Shielding Case Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing clips soldered to printed wiring boards for fixing shielding cases have a limited guiding function, making it difficult to insert the shielding case due to a small range of guiding functionality, which complicates the assembly process.
Innovation Solution
A clip design featuring a base portion with holding and guiding portions, where the guiding portions include a contact surface that expands the guidable range, allowing easy insertion of the insert between the spring pieces, and a convex portion for feedback during assembly, which helps in aligning the insert correctly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the holding spring portions are designed with bent leading edges to provide guiding function, then the insert can be guided to center during insertion, but the range of guiding function is small relative to the size of the clip, making insertion difficult
Solution Approach 1:
The patent extends the guiding portions horizontally outward from the holding spring portions in addition to the vertical bending. This adds a horizontal dimension to the guiding function, significantly expanding the guiding range while maintaining the centering capability. The guiding portions now provide guidance both vertically (through bending) and horizontally (through extension), resolving the contradiction between limited guiding range and insertion ease.
2Ease of operation
If the leading edge is bent inward to guide the insert, then centering is achieved, but the guiding portion occupies space that could be used for other functions
Solution Approach 1:
The patent divides the guiding function into two distinct segments: the holding spring portions provide vertical guidance through bending, while the separately extended guiding portions provide horizontal guidance. This segmentation allows each component to specialize in a specific guidance direction, achieving comprehensive centering without requiring one bulky structure to perform all guiding functions simultaneously.
3Area of stationary object
If the contact surface is positioned closer to the base portion, then the structure is more compact, but the guidable range is reduced
Solution Approach 1:
The patent positions the contact surface on horizontally extended guiding portions that protrude outward from the holding spring portions. By extending in the horizontal dimension rather than only vertically, the contact surface achieves a large guidable range while maintaining a compact vertical profile, thus resolving the contradiction between compactness and guidance range.
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 expanded guidable range facilitates easier insertion and assembly of the shielding case, while the convex portion provides tactile feedback for proper alignment, enhancing the assembly process and ensuring secure fixation without increasing the clip's size.
Implementation Method 1
The first spring piece and the second spring piece are each configured to be elastically displaceable in a facing direction
Implementation Method 2
The base portion includes a joining portion to be soldered to the conductive portion
Data Source
Figure 1A~1B
Figure 2A~2D
Figure 3
AI summary
A clip provided with a base portion, at least one holding portion, and a guiding portion. The holding portion includes a pair of spring pieces including a first spring piece and a second spring piece connected to the base portion and facing each other, and sandwiches an insert inserted between these spring pieces. The guiding portion includes a contact surface that guides the insert toward a position between the first spring piece and the second spring piece when the insert moves in an insertion direction and the guide portion comes into contact with the insert. The contact surface is at least partially, in relation to the insertion direction, in a position farther away from the base portion than the second portion of at least one of the first spring piece and the second spring piece. The contact surface is at least partially, in relation to a facing direction, in a position farther away from the corresponding spring piece than the second portion of the one spring piece.