Circulation Pump Control Housing Simultaneous Connection
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Solution Overview
Problem
Existing control boxes for circulation pumps face challenges in providing a simplified and reliable connection for electrical power and information transmission, while ensuring IP protection against water and dust, due to complex interconnections and space constraints.
Innovation Solution
A control box design with connection and ground pins extending along an extension axis in the connection plane, accessible through a cover that can be moved between open and closed positions, and integrated with a standard connector, allowing simultaneous connection to a printed circuit board, thereby simplifying the connection process and enhancing protection against environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an indirect connection with an interconnect component is used between the connector and the control board, then the connection is easier to implement and the control board does not need direct access, but the number of components increases thus increasing manufacturing cost and the risk of poor contact increases affecting reliability
Solution Approach 1:
The patent merges the interconnect component with the control board housing, integrating the connection function directly into the housing structure. This eliminates the need for separate interconnect components while maintaining ease of connection implementation, and reduces the number of connection points to improve reliability by minimizing potential failure points.
2Ease of manufacture
If a direct connection is made between the connector and the control board, then the number of components is reduced and manufacturing cost decreases, but the control unit requires specific access to the control board which complicates the housing design and raises concerns about watertightness
Solution Approach 1:
The housing is designed to integrate the control board access function directly into its structure, allowing direct connection between the connector and control board without requiring separate access mechanisms. This maintains manufacturing simplicity while enabling direct connection to reduce component count and cost.
Solution Approach 2:
The housing provides localized access to the control board specifically at the connection area, rather than requiring general access to the entire control board. This localized access approach simplifies the overall housing design while enabling direct connection, and allows the rest of the housing to maintain its watertight integrity.
3Device complexity
If direct access to the control board is provided for connector connection, then the number of components is reduced, but it becomes difficult to guarantee the expected protection rating (IP X2D) against water droplet penetration
Solution Approach 1:
The housing provides localized access to the control board specifically at the connection area, rather than requiring general access to the entire control board. This localized access approach simplifies the overall housing design while enabling direct connection, and allows the rest of the housing to maintain its watertight integrity.
4Object-affected harmful factors
If a hinged cover is mounted on the control box to meet protection rating requirements, then the protection against water droplets is ensured, but a significant amount of space is required for opening the cover which is not suitable for confined installation environments
Solution Approach 1:
The housing integrates the protection function directly into its structure, eliminating the need for separate hinged covers. The housing design itself provides the necessary protection rating while maintaining a compact form factor suitable for confined installation spaces.
Data Source
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AI summary
Control box (10) for a drive motor of a fluid circulation pump, comprising a drive motor control board (12) including at least one connection pin having a power portion for supplying power to the control board (12) and a transmission portion enabling the control board (12) to receive or transmit an information signal; and a ground pin suitable for connecting the drive motor to earth to form an electrical circuit with the power portion of the connection pin, wherein the connection and ground pins are suitable for being connected simultaneously to the same connector (16).