Angled RJ45 Socket Orientation for DIN Rail Housing Dimensions
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Solution Overview
Problem
Communication units in top-hat rail housings often protrude beyond the required installation dimensions due to the design of RJ45 sockets, which either require special cables or compromise the bending radius of standard cables, making them susceptible to damage.
Innovation Solution
The first circuit board is arranged perpendicularly to the mounting side, and the built-in socket's insertion axis is angled between 15° and 30° relative to the mounting side, allowing standard RJ45 cables to be used while maintaining the necessary installation dimensions and bending radius.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the built-in socket is arranged with the insertion opening perpendicular to the mounting side, then the installation dimensions are reduced, but the cable bending radius becomes too small causing cable damage
Solution Approach 1:
The built-in socket is arranged at an angle of 15° to 30° relative to the mounting side, transitioning from a perpendicular arrangement to an angular arrangement. This dimensional change in orientation allows the cable to exit at an optimal angle that maintains both compact installation dimensions and sufficient bending radius, resolving the contradiction between size and cable durability.
2Reliability
If the built-in socket is arranged with the insertion opening parallel to the mounting side, then cable bending radius is maintained, but the housing protrudes beyond required installation dimensions
Solution Approach 1:
Instead of arranging the socket parallel to the mounting side (which would maintain cable bending but increase housing length), the socket is arranged at an intermediate angle of 15° to 30°. This angular arrangement optimizes the projection of the cable path, maintaining adequate bending radius while minimizing the housing protrusion beyond installation dimensions.
3Adaptability or versatility
If standard RJ45 cables are used with conventional socket arrangements, then cable availability is improved, but the bending radius becomes too small causing cable susceptibility to damage
Solution Approach 1:
The critical parameter changed is the orientation angle of the built-in socket relative to the mounting side. By setting this angle between 15° and 30°, the cable path geometry is optimized to provide sufficient bending radius while maintaining compatibility with standard RJ45 cables, thus improving both adaptability and reliability simultaneously.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a communication unit with a housing (1) for mounting on a mounting rail (2) and with at least one circuit board (17, 19) arranged in the housing (1). The housing has a side facing the mounting rail – mounting side (3) – and a front side (4). A panel-mount socket (8) is arranged on one of the at least one circuit board – first circuit board (17) – wherein the panel-mount socket (8) has an insertion opening (23) into which a corresponding plug (10) can be inserted through an opening (7) in the housing (1), the opening (7) in the housing (1) being formed at least partially in the front side (4) and wherein an axis (16) is defined by the insertion opening (23) along which an inserted plug (10) is arranged. The first circuit board (17) is arranged perpendicular to the mounting side (3).The mounting socket (8) is also arranged on the first circuit board (17) such that the axis (16) of the insertion opening (23) forms an angle between 15° and 30° relative to the mounting side (3). In a preferred embodiment, the housing is a DIN rail housing (1) and the mounting rail is a DIN rail (2). Accordingly, in this embodiment, the mounting side (3) is designed to be essentially parallel to the front side (4).