Cable Receiving Device with Integrated Strain Relief and Housing Locking
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Solution Overview
Problem
Existing cable receiving devices require separate screw connections for strain relief and housing closure, increasing installation time and complexity.
Innovation Solution
A cable receiving device with pivotally connected housing parts and a displaceable strain relief mechanism that shifts from one position to another via a screw, allowing simultaneous strain relief and housing locking during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate screw connections are used for strain relief and housing closure, then reliable strain relief and secure housing closure are achieved, but installation time and operational complexity increase
Solution Approach 1:
The patent combines the strain relief function and housing closure function into a single integrated screw connection. The screw connection serves dual purposes: it provides strain relief for the cable by anchoring the strain relief device, and simultaneously secures the housing closure by engaging with the housing. This merging of functions eliminates the need for separate screw connections, reducing installation steps and time while maintaining reliable strain relief and secure housing closure.
Solution Approach 2:
The screw connection is designed as a multi-functional element that performs multiple tasks: it acts as both a strain relief anchor and a housing closure fastener. The strain relief device is integrated into the screw connection mechanism, allowing the same screw to simultaneously secure the cable strain relief and close the housing, thereby achieving universal functionality with a single component.
2Reliability
If separate screw connections are used for strain relief and housing closure, then functional requirements are met, but assembly complexity increases
Solution Approach 1:
The patent merges the strain relief anchoring function and housing closure fastening function into a single screw connection mechanism. The strain relief device is integrated into the screw connection, allowing one screw to simultaneously secure both the cable strain relief and the housing closure, thereby simplifying the assembly process while maintaining functional reliability.
Solution Approach 2:
The screw connection is segmented into functional zones: one zone engages with the strain relief device to provide cable anchoring, while another zone engages with the housing to provide closure security. This segmentation within a unified structure allows the single screw connection to fulfill multiple functional requirements without increasing overall assembly complexity.
3Ease of manufacture
If a fixed strain relief structure is used, then simple housing closure is achieved, but adaptability to various cable cross-sections is limited
Solution Approach 1:
The strain relief device incorporates a movable element that can be displaced along the screw connection axis. This dynamic feature allows the strain relief structure to adapt to different cable diameters and cross-sections. When the screw is tightened, the movable element shifts position to accommodate varying cable sizes, providing both simple housing closure and versatile cable adaptability through its dynamic adjustment capability.
Solution Approach 2:
The strain relief device utilizes parameter changes in the form of a movable element that adjusts its position along the screw connection. By changing the position parameter of this element, the device can accommodate different cable cross-sections while maintaining effective strain relief. This parameter adjustment enables the same housing closure mechanism to work with various cable sizes without compromising simplicity or adaptability.
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
Simplifies the assembly process by integrating strain relief and housing closure into a single operation, reducing installation time and accommodating various cable cross-sections, while providing reliable strain relief for cables from 1.5 mm individual conductors to 9 mm cables.
Implementation Method 1
The strain relief means preferably has a threaded section through which a screw is guided. In order to bring the strain relief from the first position into the second position, a screw can be used, which is screwed into the threaded section and, by turning, for example clockwise, shifts the strain relief from the first position into the second position.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a cable receiving device (10) comprising a first housing part (1), a second housing part (2), an insertion channel (3) for a cable (4) and a strain relief means (5), wherein the strain relief means (5) is configured to be moved from a first position (11) to a second position (12), wherein it is configured such that in the first position (11) the cable (4) can be inserted via the insertion channel (3) and in the second position (12) the cable (4) is clamped in the insertion channel (3), wherein the strain relief means (5) further comprises a locking means (6) which, during the transition from the first position (11) to the second position (12), interacts with retaining means (7) arranged in the first housing part (1) and the second housing part (2) such that the housing parts (1, 2) are locked together.