Installation Box Inlet Break-Off Structure for Precise Conduit Openings
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Solution Overview
Problem
Existing installation boxes face difficulties in precisely opening insertion openings, which often result in uncontrollable breakage of wall sections and sharp edges, making it challenging to accommodate electrical conduits of varying diameters.
Innovation Solution
The installation box features a detachable wall section with a rounded transition area, incorporating inner and outer sections separated by gaps with predetermined breaking elements, allowing controlled removal based on conduit diameter, facilitated by injection molding to avoid undercuts and ensure material flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wall sections are made detachable for conduit insertion, then adaptability to different pipe diameters is improved, but precision of opening and control of breakage is worsened
Solution Approach 1:
The wall section is divided into multiple segments with predetermined breaking points, allowing controlled removal of specific portions. The breaking points are strategically positioned to enable precise opening while maintaining adaptability to different conduit sizes through selective segment removal.
Solution Approach 2:
Predetermined breaking points are pre-formed in the wall section during manufacturing, enabling controlled breakage when force is applied. This preliminary preparation ensures that when the wall section needs to be opened, it breaks precisely at the predetermined locations rather than unpredictably.
2Adaptability or versatility
If wall sections are made detachable for conduit insertion, then adaptability to different pipe diameters is improved, but uncontrollable breakage is worsened
Solution Approach 1:
The wall section is divided into multiple segments with predetermined breaking points, allowing controlled removal of specific portions. The breaking points are strategically positioned to enable precise opening while maintaining adaptability to different conduit sizes through selective segment removal.
Solution Approach 2:
Predetermined breaking points are pre-formed in the wall section during manufacturing, enabling controlled breakage when force is applied. This preliminary preparation ensures that when the wall section needs to be opened, it breaks precisely at the predetermined locations rather than unpredictably.
3Ease of manufacture
If conventional insertion openings are used, then manufacturing simplicity is maintained, but sharp edges are created causing safety issues
Solution Approach 1:
The insertion opening is designed with rounded edges instead of sharp corners. This curvature eliminates the harmful sharp edges while maintaining the functional opening, and can be achieved through standard molding techniques without significantly complicating the manufacturing process.
Data Source
Figure 1~2
Figure 3~4
AI summary
An electrical installation box (1) comprising a base (2) and an adjoining wall (3) forming an installation space (5). Opposite the base (2) and surrounded by the wall (3) is an installation opening (4). The installation box (1) further comprises at least one insertion opening (6) which is closed by a removable wall section (7). The wall section (7) is separated from an edge (8) of the insertion opening (6) at least partially by a gap (12) which includes at least one break-off element (13). The wall section (7) further comprises an inner section (9) and at least one outer section (10) which at least partially surrounds it. The at least one outer section (10) is separated from the inner section (9) at least partially by a gap (12) which includes at least one break-off element (14).