A thermal expansion valve

A thermal expansion valve and valve core technology, applied in the field of thermal expansion valves, can solve problems such as complex structure and high requirements for valve body processing technology, and achieve the effect of simplified processing technology, simple and reliable processing technology

Active Publication Date: 2016-08-17
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned structure can integrate the expansion valve and the one-way valve provided separately into an integrated structure, the structure is complex and requires high processing technology for the valve body, while the thermal expansion valve with the one-way control function in the prior art Improve structure, simplify structure and improve reliability, is the problem to be solved in this technical field

Method used

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  • A thermal expansion valve
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Embodiment Construction

[0043] The technical idea of ​​the present invention will be specifically described below in conjunction with the accompanying drawings.

[0044] figure 2 It is a specific structural schematic diagram of the thermal expansion valve provided by the present invention, image 3 for figure 2 Front and side views of the enclosure part in .

[0045] Such as figure 2 and image 3 shown. In this specific embodiment, the thermal expansion valve includes a valve body 1, on which an inlet channel 11 and an outlet channel 12 are arranged, and an inner cavity 13 communicating with the inlet channel 11 and the outlet channel 12 is processed in the valve body 1 , the temperature-sensing component 2 is placed at one end of the valve body 1 and closes the inner cavity 13, and a through hole 17 is also processed in the inner cavity 13 of the valve body 1, and the connection between the through hole 17 and the inner cavity 13 forms a first valve port 14 .

[0046] The through hole 17 t...

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Abstract

The invention discloses a thermal expansion valve with a one-way control function, which comprises a valve body (1), a temperature-sensing component (2), and a first valve core component ( 4), the first valve core part (4) includes a valve stem (41) and a first valve core (42), and the valve body (1) is also provided with a housing part, and a cover body ( 5), the inner hole (16) of the cover body (5) communicates with the inlet channel (11) and the inner cavity (13) to form a fluid auxiliary channel. Compared with the prior art, the belt The thermal expansion valve with one-way control function simplifies the processing technology of the valve body by providing a cover body on the valve body. And in the preferred solution, the valve port and sealing position can be processed at one time by stretching, and the guiding part or restricting part is set by stamping, which makes the processing process simpler and more reliable, and is suitable for mass production.

Description

technical field [0001] The invention belongs to a refrigeration control system, in particular to a thermal expansion valve with a single control function used in an air conditioning system. Background technique [0002] Thermal expansion valves are usually used in heat pump control systems. In heat pump control systems, the refrigerant can generally flow in reverse to achieve the functions of cooling and heating. The thermal expansion valves in the prior art are generally set in one direction, and the one-way valve is set on the external bypass. to the valve. When the system flows forward, the one-way valve is closed, and the medium is throttled through the expansion valve. When the system is flowing in the reverse direction, the one-way valve is opened, and the medium flows through the one-way valve. But the separate one-way valve and bypass channel Will increase installation costs and maintenance costs, the potential for leakage will increase. [0003] Therefore, in rece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/06F25B41/31
Inventor 不公告发明人
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
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