Socket Pole Contact End Stop Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing socket pole contacts for electrical installations suffer from deformation of conductor entries when a plug is inserted, leading to potential blocking of the unlocking mechanism and loosening of the support spring-contact spring assembly.
Innovation Solution
A socket pole contact design featuring a geometric body acting as an end stop, formed from the contact spring sheet metal, which stabilizes the conductor entries and prevents deformation, combined with a strut element that enhances mechanical contact forces and dimensional stability by limiting leg widening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conductor entries are allowed to deform freely to accommodate plug insertion, then the ease of operation is improved, but the reliability deteriorates due to potential blocking of the unlocking mechanism and loosening of the support spring assembly
Solution Approach 1:
The patent applies preliminary anti-action by providing geometric bodies (end stops) that preemptively prevent excessive deformation of the conductor entries. These end stops are positioned in advance to limit the deformation range, thereby preventing the harmful effects (unlocking mechanism blocking, support spring loosening) before they can occur during plug insertion and removal operations.
2Reliability
If the conductor entries are constrained to prevent deformation, then the reliability is improved, but the ease of operation deteriorates due to increased insertion forces
Solution Approach 1:
The patent applies local quality by providing selective constraints through geometric bodies (end stops) only at specific locations where deformation would cause harmful effects. The conductor entries are free to deform in regions where deformation is beneficial for plug accommodation, while being constrained only at the ends where excessive deformation would block the unlocking mechanism or loosen the support spring assembly. This localized constraint approach maintains ease of operation while ensuring reliability.
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 solution effectively reduces deformation of conductor entries and ensures reliable conductor clamping and unlocking, maintaining the stability of the pole contact and improving power transmission.
Implementation Method 1
The support spring-contact spring assembly is formed from a metal with spring properties and enables the mechanical function. For this purpose, the clamping force for clamping the connector pin is ensured by two supporting spring arms compressing the contact legs and by a contact spring with at least one contact spring arm and at least one locking arm
Implementation Method 2
the clamping force for clamping the connector pin is ensured by two supporting spring arms compressing the contact legs
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A socket terminal contact for a socket insert is proposed, which is composed of a terminal component (3) and a support spring-contact spring assembly (19). The terminal component (3) is composed of two conductor entries (14, 15) and two opposing contact legs (4, 5) for inserting and clamping a plug pin and covers the electrical function of the current flow from the conductor to the plug pin. The support spring-contact spring assembly (19) is made of a metal with spring properties and covers the mechanical function, whereby two support spring arms (20, 21) that press the contact legs (4, 5) together provide the clamping force for clamping the plug pin, and a contact spring with at least one contact spring arm (25, 26) and at least one locking arm (27, 28) provides the clamping force for conductor clamping and conductor locking.In addition to the locking arm (27, 28), a release arm (29, 30) of a release spring is arranged, which, when force is applied to one of the release arms (29, 30), releases the respective locking arm (27, 28) from the inserted conductor at its end. Between the conductor entries (14, 15), an end stop (2) is arranged on the side of the release spring facing the free end of the conductor entries (14, 15), which spaces the conductor entries (14, 15) apart from each other.