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Valve device

A valve device and valve body technology, applied in valve device, valve operation/release device, sliding valve, etc., can solve problems such as affecting the normal function of the valve, low reliability, and inability to accurately control the flow rate.

Inactive Publication Date: 2019-07-12
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation and positioning structure of the coil and the valve body parts is relatively complicated, and the reliability is also low
[0007] When working, the electronic expansion valve adjusts the flow rate by changing the relative position of the valve needle 5' and the valve port 4'. The change of the flow rate is related to the size of the valve port 4' and the structure of the valve needle 5'. In practice, the flow rate cannot be precisely controlled. poor consistency
[0008] In addition, when the valve needle 5' moves up and down, friction will inevitably occur between the valve port 4', which will affect the life and performance of the electronic expansion valve (such as internal leakage). At the same time, when the valve needle 5' moves, the relevant There is friction between metals in the parts, which will not only produce friction noise, but also wear and tear when there is no oil lubrication, resulting in seizure, thus affecting the normal function of the valve

Method used

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Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] It should be noted that the orientation words involved in this article, such as upper and lower, are defined by the parts in the figure and the positions between the parts in the figure. They are only for the clarity and convenience of expressing the technical solution, and should not It is understood as an absolute limitation on the scope of protection; similarly, "first", "second", etc. are used only for the convenience of description to distinguish different components with the same name, and do not indicate the order, nor should it be understood as a certain limited.

[0067] Please refer to Figure 2 to Figure 4 , figure 2 It is a schematic cross-sectional view of a specific embodiment of the valve device provided by ...

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Abstract

The invention discloses a valve device. The valve device comprises a driving part and a valve body part, wherein the driving part comprises a coil part sleeving the valve body part; a first mounting plate is fixedly arranged on the coil part; a second mounting plate is fixedly arranged on the valve body part; the first mounting plate is provided with a first bending section extending towards a valve seat assembly of the valve body part; the second mounting plate is provided with a second bending section extending towards the coil part; one of the first bending section and the second bending section is provided with a positioning convex part, and the other of the first bending section and the second bending section is provided with a positioning hole; and when the coil part sleeves the valve body part, the positioning convex part is clamped and embedded in the positioning hole. According to the valve device, the mounting structure of the coil part and the valve body part is simple and reliable.

Description

technical field [0001] The invention relates to the technical field of fluid control components, in particular to a valve device for flow regulation. Background technique [0002] With the improvement of energy efficiency requirements, the frequency conversion refrigeration system based on frequency conversion air conditioners has developed rapidly. As a throttling element, capillary tubes have been unable to meet the frequency conversion requirements of refrigeration systems. Capillary tubes have been replaced by various valves that can adjust flow. The main valve. [0003] Please refer to figure 1 , figure 1 It is a schematic cross-sectional view of a conventional electronic expansion valve. [0004] When working, through the external excitation coil (not shown in the figure), the magnetic rotor 1' of the motor is driven to rotate, and the valve needle screw 2' and the fixed nut 3' are driven to rotate relative to each other, so as to realize the up and down movement of...

Claims

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Application Information

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IPC IPC(8): F16K3/08F16K3/34F16K3/314F16K3/30F16K31/06F16K31/10F16K31/53
CPCF16K3/085F16K3/30F16K3/314F16K3/34F16K31/0668F16K31/105F16K31/535
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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