Spring Push Terminal Support Beam Fixation
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Solution Overview
Problem
Existing spring plug-in terminals for installation switching devices, such as circuit breakers, face difficulties in assembly due to the clamping spring not being fixed in position independently of the housing installation, leading to complex assembly processes and limited installation options.
Innovation Solution
A spring plug-in terminal design where a support beam is attached to the clamping frame, allowing the spring to be fixed directly on the frame independently of the housing installation position, along with features like an angled conductor piece and a conductor rail, enabling precise assembly and a narrow design for efficient installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spring is fixed using a fixing part connected to the housing, then the spring can be secured in position, but the installation options are limited and the device complexity increases
Solution Approach 1:
The invention extracts the spring fixation function from the housing structure and relocates it to the clamping frame. The support beam is attached to the clamping frame, allowing the spring to be fixed independently of the housing installation position. This eliminates the need for additional fixing parts connected to the housing, reducing device complexity while maintaining reliable spring position fixation.
2Ease of manufacture
If the curved piece rises freely above the level of the square recess, then the spring can be easily installed, but the assembly precision is reduced and installation options are limited
Solution Approach 1:
The invention applies preliminary action by providing a support beam that extends from the clamping frame to define the spring position in advance. The spring rests against this support beam, which guides and secures the spring in the correct position during assembly. This preliminary positioning structure ensures both easy installation and high assembly precision, eliminating the need for the curved piece to rise freely above the recess level.
3Ease of operation
If the plug-in spring terminal is designed with sufficient width for assembly clearance, then assembly is easier, but the device width increases reducing installation efficiency
Solution Approach 1:
The invention resolves the width contradiction by transitioning to another dimension. The support beam extends in a direction perpendicular to the main plane of the clamping frame, providing necessary assembly clearance and guidance without increasing the device width in the horizontal plane. This vertical or lateral extension of the support beam allows sufficient assembly space while maintaining a compact device footprint suitable for standard module widths.
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 design allows for secure and precise assembly of spring plug-in terminals within installation switching devices, particularly in base design configurations, with reduced electrical resistance and a compact structure, facilitating easier installation and operation.
Implementation Method 1
two spring ends of the spring legs together with the clamping piece of the clamping frame form a clamping zone for two conductor sections to be connected
Data Source
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AI summary
The invention relates to a spring push terminal (1) having a U or O shaped spring (2) having two contact tongues (3, 4) and comprising a rectangular clamping frame (5) having a square recess (7) and a clamping piece (6) at an angle to the plane of the clamping frame (5), wherein the contact tongues (3, 4) are connected to a fixed end (8) by means of a bow-shaped connection (14, 15), and the fixed end (8) is fixedly disposed in a fixation zone (13) in the recess (7), and the two spring ends (9, 10) of the contact tongue (3, 4) form a clamping zone (11) with the clamping piece (6) of the clamping frame (5) for two conductors to be connected, wherein a support beam (12) is attached to the clamping frame (5), the spring (2) being fixedly attached thereto.