Compact Electric Valve Structure for Stable Refrigerant Flow
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Solution Overview
Problem
In commercial air-conditioning systems, existing flow control valves are not compact enough to minimize size and ensure stable regulation of refrigerant flow, which is necessary for efficient operation across multiple indoor units connected to a single outdoor unit.
Innovation Solution
The electric valve features a compact structure with a valve body, valve seat, valve core, transmission component, and screw nut kit, including a magnetic rotor, screw rod, and non-circular screw nut, which allows for precise control and reduced size through a combination of cylindrical and annular structures and welding for assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electric valve uses a conventional transmission mechanism, then the valve can operate, but the size of the electric valve becomes large
Solution Approach 1:
The magnetic rotor is arranged inside the inner chamber of the valve cover, and the screw rod is positioned within the valve body, creating a nested arrangement where transmission components are housed within the existing valve structure rather than adding external bulk
Solution Approach 2:
The patent replaces conventional mechanical transmission components with a magnetic rotor that interacts with the screw rod through magnetic fields, eliminating the need for complex mechanical couplings and reducing overall device size while maintaining transmission functionality
2Volume of moving object
If the electric valve uses a compact structure, then the size is reduced, but the assembly accuracy and reliability may be compromised
Solution Approach 1:
The screw nut kit incorporates a non-circular cross-section first limiting portion that asymmetrically engages with the screw rod, providing precise positional control and preventing rotational slip, thereby ensuring assembly accuracy despite the compact design
Solution Approach 2:
The valve is divided into modular components (valve body component, valve seat component, valve core component, transmission component, screw nut kit) that can be independently manufactured and assembled with high precision, then integrated into a compact overall structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the compactness and reliability of the electric valve, ensuring stable operation and precise flow regulation, reducing the risk of product failure due to pressure fluctuations and improving assembly accuracy.
Implementation Method 1
the transmission component includes a magnetic rotor, a screw rod, and a screw nut
Data Source
AI summary
An electrically operated valve, comprising a valve body component, a drive component and a nut sleeve piece. The drive component comprises a magnetic rotor, a screw rod and a nut, the magnetic rotor being arranged in an inner cavity of a valve cover body, the screw rod being threadedly connected to the nut, the screw rod being incapable of movement in the axial direction with respect to a valve body. The nut sleeve piece comprises a first limiting portion which limits rotation of the nut in the circumferential direction, the cross-section of the first limiting portion being non-circular. A compact structure, which helps to reduce the size of the electrically operated valve.