Transmitter Housing Plug Connection for Explosion-Proof Assembly
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Solution Overview
Problem
Existing measuring devices face challenges in manufacturing ease and component replacement, particularly in ensuring explosion-proof designs while maintaining compactness and efficient signal transmission in tight spaces.
Innovation Solution
A measuring device with a self-centering connection unit that adapts to the contacting unit during connection, featuring funnel-shaped sockets and pins with a tolerance range, and a modular design with separate electronics and terminal compartments to prevent explosion spread, along with a flexible circuit board for compactness and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a modular electronics unit with separate terminal compartment and electronics compartment is used, then explosion-proof safety is improved, but device complexity increases
Solution Approach 1:
The transmitter housing is divided into a terminal compartment and an electronics compartment, with the terminal compartment further subdivided into a non-flameproof section and a flameproof section. This segmentation isolates potentially explosive areas from electronics, preventing explosion spread while maintaining manageable complexity through functional separation.
Solution Approach 2:
A partition wall with a flameproof penetration acts as an intermediary barrier between the terminal compartment and electronics compartment. This intermediary structure allows controlled signal and power transmission while maintaining explosion-proof isolation, resolving the contradiction by enabling communication without direct exposure.
2Ease of operation
If connection elements are arranged in a floating manner perpendicular to the joining direction, then ease of assembly is improved, but manufacturing precision requirements increase
Solution Approach 1:
The connection elements are designed to be movable in the perpendicular direction rather than fixed, allowing automatic adaptation to position variations during assembly. This dynamic arrangement compensates for manufacturing tolerances and simplifies assembly operations without requiring high precision.
Solution Approach 2:
The floating connection elements self-adjust to the correct position during assembly through their movable design, eliminating the need for precise pre-positioning or complex alignment procedures. The system performs its own positioning function, reducing both assembly difficulty and precision requirements.
3Ease of operation
If a self-centering connection with floating connection elements is used, then ease of assembly is improved, but device complexity increases
Solution Approach 1:
The connection elements automatically center themselves during assembly through their floating, movable design, performing the alignment function without external assistance or complex mechanisms. This self-centering capability simplifies assembly operations while the underlying mechanism remains integrated into the existing connection structure, minimizing added complexity.
4Ease of operation
If funnel-shaped sockets and pins with tolerance range are used, then ease of assembly is improved, but manufacturing precision decreases
Solution Approach 1:
The connection elements are designed with intentional tolerance ranges and funnel-shaped geometries that accommodate manufacturing variations. By changing the dimensional parameters to include built-in tolerances, the design prioritizes ease of assembly while accepting reduced manufacturing precision, as the forgiving geometry compensates for dimensional variations.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A measuring device (1) with at least one sensor (3) and at least one transmitter housing (4) is described and illustrated, wherein the transmitter housing (4) has at least one terminal compartment (5) and an electronics compartment (7) adjacent to the terminal compartment (5) and connected via a partition (6), wherein at least one first electronic device (25) for connecting supply and/or I/O lines is arranged in the terminal compartment (5) and wherein at least one second electronic device (11) with electronics for controlling the sensor (3) is arranged in the electronics compartment (7), wherein the first electronic device (25) and the second electronic device (11) are electrically connected to each other via a contacting unit (14), wherein the second electronic device (11) has a connection unit (13) which is connected to the contacting unit (14) via a plug connection, wherein the plug connection has an insertion direction.The task of specifying a measuring instrument that is easy to manufacture and whose components are particularly easy to replace is solved by the fact that the connection unit (13) is fixedly arranged in the joining direction and that the connection unit (13) is arranged floating perpendicular to the joining direction in such a way that it adapts to the position of the contacting unit (14) when connected to the contacting unit (14).