Electrical valve
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Solution Overview
Problem
Existing direct-acting electric valves in commercial air-conditioning systems, particularly in variable refrigerant flow models, face challenges in reducing size while maintaining driving force due to the use of flammable and explosive refrigerants, which limits refrigerant charge and requires a larger driving system, increasing the overall size of the valve.
Innovation Solution
The electric valve design is optimized with a compact structure featuring a valve body, valve cover, valve core, transmission component, and valve seat components, where the valve seat core is sleeved outside the valve port jacket, enhancing position accuracy and reliability, and reducing the overall size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large valve port area is used to meet commercial air conditioner requirements, then the driving force is increased, but the overall size of the valve increases
Solution Approach 1:
The valve core is nested within the valve body, and the valve seat is integrated into the valve body structure. The electromagnetic coil is positioned around the valve core assembly, creating a compact nested configuration that maximizes driving force while minimizing overall valve size.
Solution Approach 2:
The valve core uses a needle-like shape extending axially through the valve body, utilizing the vertical dimension to create sufficient valve port area without increasing the horizontal footprint. This dimensional approach allows large driving force through axial movement while maintaining compact radial dimensions.
2Power
If the size of the driving system is increased to obtain large driving force, then the driving force is improved, but the overall size of the flow control valve increases
Solution Approach 1:
The electromagnetic coil is directly coupled to the valve core assembly, merging the driving system with the valve mechanism. This integration eliminates separate mounting structures and reduces overall valve size while maintaining sufficient driving force for the application.
Solution Approach 2:
The electromagnetic coil surrounds the valve core in a nested configuration, allowing the driving system to be positioned within the existing valve structure rather than adding external components. This nesting approach increases power output without proportionally increasing valve size.
3Measurement precision
If a direct-acting electric valve is used to precisely regulate refrigerant flow, then flow regulation precision is improved, but the valve size increases due to flammable refrigerant constraints
Solution Approach 1:
The valve is segmented into distinct functional components: electromagnetic coil, valve core, valve seat, and valve body. This segmentation allows each component to be optimized for its specific function while maintaining a compact overall structure suitable for flammable refrigerant applications.
Solution Approach 2:
The valve core is designed with a needle-like shape providing precise local control at the valve seat interface, while the overall valve maintains a compact form factor. The local quality of the needle valve core enables precise flow regulation without requiring a large overall valve 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
The optimized design results in a smaller, more reliable electric valve that meets the requirements of commercial air conditioners, such as variable refrigerant flow models, with improved position accuracy and reduced manufacturing costs.
Implementation Method 1
an electromagnetic coil, arranged outside the valve cover and used for driving the valve core component to move axially
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An electrical valve, comprising: a valve body component (40), the valve body component (40) comprising a valve body (41) and a valve cover body (42), the valve cover body (42) being fixedly connected to the valve body (41); a valve seat component (20), the valve seat component (20) comprising a valve seat body (21) and a valve seat core (22), the valve seat body (21) being fixedly connected to the valve body (41), the valve seat core (22) being sleeved with a valve port protective sleeve (24). By means of a structurally optimised design, the electrical valve has a compact overall structure and a small size, and the positional accuracy between various functional parts is easily ensured, thereby increasing the reliability of the valve seat core (22).