Separately Molded Pump Terminal Box Connector Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The irrational location of electric connectors in conventional pump assemblies leads to difficulties in assembly, demolding, and increased production costs due to integrally molded connectors and wiring issues.
Innovation Solution
A pump component design featuring a terminal box with a tubular shell part and separately molded electric connector, where the connector is fixed using a fastener and slidable insertion within a chute, allowing for improved assembly efficiency and reduced production costs by enabling easier demolding and separate molding of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electric connectors are integrally molded with the terminal box, then the structure is simplified, but demolding becomes difficult and production cost increases
Solution Approach 1:
The patent divides the terminal box into two separately molded parts: the tubular shell part and the electric connector. This segmentation allows each component to be molded independently, eliminating demolding difficulties while maintaining structural integration during assembly. The tubular shell part forms the housing structure, while the electric connector is separately formed and then assembled into the terminal box.
2Device complexity
If electric connectors are located at the shaft side of the stator shell, then the terminal box can be integrated, but wiring connection becomes inconvenient
Solution Approach 1:
The patent repositions the electric connector from the traditional shaft-side location to the axial end side of the stator shell. This spatial repositioning in a different dimension (axial direction) provides easier access for wiring connections while maintaining terminal box integration. The connector is now accessible from the end of the stator shell rather than from the shaft side, facilitating simplified wiring operations.
3Ease of operation
If electric connectors are fixed on the axial end side of the stator shell, then wiring connection is facilitated, but assembly complexity increases
Solution Approach 1:
The patent combines the electric connector with the tubular shell part through assembly, where the connector is inserted into the shell part and secured with a fastener. This merging approach maintains the benefits of separate molding (easy demolding) while achieving integration (simplified assembly). The fastener secures the connector in place, eliminating the need for complex assembly procedures.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The utility model discloses a pump component, the pump component having a motor disposed in a stator shell, wherein the stator shell is provided with a terminal box on an axial end side. The terminal box has a tubular shell part; the first axial end side of the tubular shell part is placed on the axial end side of the stator shell; the second axial end side of the tubular shell part is closed by at least one cover. The terminal box is internally provided with an operation and display circuit board and a motor drive circuit in electric connection with the operation and display circuit board and for control over working of the motor. The cover is provided with a plurality of operation elements and a display hole, characterized in that, the tubular shell part and the electric connector are separately molded; the periphery of the tubular shell part is formed with a groove portion matched with the electric connector. The utility model brings convenience in assembly, greatly improving the assembling efficiency. Moreover, the tubular shell part and the electric connector are separately molded, greatly reducing the difficulties in demolding, enhancing the production efficiency and lowering the production cost.