Heat Circulation Pump Axial Plug Offset
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Solution Overview
Problem
Heating circulating pumps face challenges in reducing manufacturing and assembly costs while improving reliability, with existing designs often having inefficient use of space around the terminal box and motor housing connections.
Innovation Solution
The solution involves arranging the electrical plug connection axially offset from the terminal box and adjacent to the motor housing, allowing it to lie flat and within the pump housing's outer contour, with snap connections for easy assembly and reduced bulkiness, and incorporating additional plugs for sensors or external controls in a compact, accessible manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the plug or socket is arranged in the area of the terminal box, then the electrical connection is integrated, but the plug-in connection protrudes radially beyond the pump housing outer contour
Solution Approach 1:
The plug or socket is relocated from the terminal box area to an axial offset position adjacent to the motor housing. This dimensional repositioning moves the electrical connection from a radial arrangement (protruding beyond the pump housing outer contour) to an axial arrangement (within the outer contour), resolving the contradiction between integration and shape compliance.
2Shape
If the plug or socket is arranged axially offset from the terminal box adjacent to the motor housing, then the plug-in connection lies within the outer contour, but the electrical connection is less integrated
Solution Approach 1:
The plug or socket is positioned in the unused radial area between the motor housing and pump housing, merging the electrical connection arrangement with the existing structural layout. This utilizes the naturally occurring space between components, maintaining integration without requiring additional housing modifications or protruding elements.
3Ease of operation
If the plug-in connection is arranged radially protruding, then it is easily accessible, but it increases the overall footprint of the pump
Solution Approach 1:
The plug-in connection is repositioned from a radial arrangement (protruding outward) to an axial arrangement (aligned with the pump axis). This dimensional change allows the connection to be accessed from the axial direction while remaining within the pump's radial footprint, effectively reducing the overall footprint without sacrificing accessibility.
4Adaptability or versatility
If additional plugs for sensors or external controls are added, then the pump functionality is enhanced, but the device complexity increases
Solution Approach 1:
The axially offset plug or socket arrangement adjacent to the motor housing serves as a universal connection point that can accommodate various electrical connections including power supply, sensors, and external controls. This single location can support multiple functions through different plug configurations, enhancing versatility without proportionally increasing device complexity.
Data Source
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AI summary
The invention relates to a heating circulating pump with a pump housing (1) with a pump impeller arranged therein, which is driven by an electric motor arranged in a motor housing (8) axially adjoining the pump housing (1), with a terminal box (12) axially adjoining the motor housing (8) for receiving electrical and/or electronic components of the motor control and with a plug or socket (34) of an electrical connector for electrical connection arranged on the outside of the terminal box (12), wherein the plug or socket (34) is arranged axially offset to the terminal box (12) and adjacent to the motor housing (8).