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Electromagnetic expansion valve

An electromagnetic expansion valve, valve body technology, applied in valve details, safety valve, balance valve and other directions, can solve the problems of high cost of electronic expansion valve, expensive stepping motor, complex structure and heavy weight, etc., to achieve light weight and structure. Simple, low-cost effects

Inactive Publication Date: 2013-06-19
NINGBO ALLKO AUTOMOBILE AIR CONDITIONERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter which kind of transmission mechanism is involved, there are many parts involved, and there are defects of complex structure and heavy weight; in addition, it generally needs a stepper motor as a power source. Expansion valve is expensive

Method used

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  • Electromagnetic expansion valve
  • Electromagnetic expansion valve
  • Electromagnetic expansion valve

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as Figure 1~5 Shown is the first embodiment of the present invention.

[0027] An electromagnetic expansion valve, including

[0028] The valve body 1 has an inlet 11 and an outlet 12 on the wall of the valve body 1, a first connecting pipe 7a is inserted and welded at the inlet 11, and a second connecting pipe 7b is inserted and welded at the outlet 12. The valve body 1 has a flow passage 13 connecting the inlet 11 and the outlet 12, the inlet 11, the outlet 12 and the flow passage 13 are located on the same horizontal axis, and the valve body 1 also has a valve hole 14, the center line of the valve hole 14 is in line with the The centerlines of the flow channels 13 intersect vertically, and the valve hole 14 runs through the flow channel 13 , and the diameter of the valve hole 14 is greater than or equal to the hole diameter o...

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PUM

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Abstract

The invention relates to an electromagnetic expansion valve which comprises a valve body and a valve plug, wherein the valve body is provided with an inlet, an outlet, a runner and a valve port, the valve plug is inserted into the valve port and is connected with a valve plug drive structure; the electromagnetic expansion valve is characterized in that the valve plug drive structure comprises a valve sleeve fixed on the valve body, a coil sleeved at the periphery of the valve sleeve, a magnetic element fixed on the valve plug, an upper spring supported between the upper internal wall of an accommodating cavity and the upper end face of the magnetic element, and a lower spring supported between the lower internal wall of the accommodating cavity and the lower end face of the magnetic element, wherein the accommodating cavity is formed between the valve sleeve and the upper part of the valve plug, and the valve body is further internally provided with a connection channel communicated with the valve port at the lower part of the valve plug and the accommodating cavity. When the valve plug moves downwards, gas in the valve port at the lower part of the valve plug enters the accommodating cavity of the valve sleeve through the connection channel on the valve body so as to stopping the valve plug moving downwards, then the gas pressure in the valve port at the lower part of a valvebase is balanced with the gas pressure in the accommodating cavity of the valve sleeve to prevent the valve plug from moving up and down, so that the moving stability of the valve plug is guaranteed.

Description

technical field [0001] The invention relates to a flow regulating valve, which is especially suitable for electromagnetic expansion valves of household and commercial air conditioners, and of course can also be used in other application fields. Background technique [0002] Throttle valves in refrigeration systems can generally be divided into capillary throttling, thermal expansion valve throttling (internal balance, external balance) and electronic expansion valve throttling. At present, in the refrigeration system, the electronic expansion valve is a new type of throttling device, which is controlled by a microprocessor. Its appearance realizes the direct control and adjustment of the refrigeration cycle by the microcomputer. The action is quick and sensitive, the adjustment is precise, stable and reliable. The refrigerant can flow in both forward and reverse directions in the electronic expansion valve, which avoids the disadvantage of only one direction of the thermal e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/10F16K17/20F25B41/06
Inventor 金仁召
Owner NINGBO ALLKO AUTOMOBILE AIR CONDITIONERS