Electronic expansion valve, manufacturing method thereof, and thermal management assembly
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Solution Overview
Problem
The assembly of electronic expansion valves in refrigeration systems is complex due to separate mechanical and electrical connections between sensors and valve bodies, leading to a non-uniform assembly reference and increased complexity.
Innovation Solution
An integrated electronic expansion valve design where the sensor is securely connected to the valve body, eliminating the need for separate mechanical connections and wire harnesses, with the sensor directly abutting against the electric control board for signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sensor and valve body are separately connected with mechanical connections and wire harnesses, then the sensor can be independently positioned, but the assembly structure becomes complicated and the assembly process becomes complex
Solution Approach 1:
The sensor is integrated directly into the valve body, merging two previously separate components. The sensor mounting cavity is formed within the valve body structure itself, eliminating the need for separate mechanical connections and wire harnesses, thus simplifying the overall assembly while maintaining functional independence
2Ease of manufacture
If the sensor and valve body are separately connected, then the sensor can be independently installed, but the assembly reference becomes non-uniform and the assembly process becomes complex
Solution Approach 1:
By integrating the sensor mounting cavity directly into the valve body structure, the patent creates a unified assembly reference. The sensor is positioned relative to the valve body through the integrated cavity design, ensuring uniform assembly reference and simplifying the assembly process while maintaining ease of manufacture
3Adaptability or versatility
If separate mechanical connections and wire harnesses are used, then the sensor can be independently positioned, but additional components and assembly steps are required
Solution Approach 1:
The integration of the sensor mounting cavity into the valve body eliminates the need for separate mechanical connections and wire harnesses. This merging of components reduces the number of parts and assembly steps required, thereby improving assembly efficiency and productivity while maintaining the sensor's positioning flexibility through the integrated cavity design
Data Source
AI summary
Provided are an electronic expansion valve, a manufacturing method thereof and a thermal management assembly. The electronic expansion valve includes a valve body, a valve component and a control portion. The valve component includes a valve seat, a valve core and a rotor assembly. The valve seat is formed with a valve port, the rotor assembly is capable of driving the valve core to move relative to the valve seat to adjust an opening degree of the valve port. The control portion includes a cover body, a stator assembly and an electric control board. The stator assembly is in electrical connection to, or is in signal connection to, or is in electrical connection to and in signal connection to the electric control board. The electronic expansion valve further includes a sensor. The control portion provided with a control cavity. The electric control board is disposed in the control cavity.