Unlock instant, AI-driven research and patent intelligence for your innovation.

Thermal expansion valve

A thermal expansion valve and valve hole technology, applied in the field of thermal expansion valves, can solve the problems of difficulty in the stable welding state of the outer wall hole and the head, insufficient welding reliability, etc., to achieve reliable welding, prevent poor welding, and reliable welding Effect

Active Publication Date: 2008-09-24
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] According to the above, in the previous thermal expansion valve, it may be difficult to achieve a stable welding state for the welding of the hole on the outer wall and the head. Possibility of insufficient soldering reliability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermal expansion valve
  • Thermal expansion valve
  • Thermal expansion valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 A thermal expansion valve installed in a refrigeration cycle in a vehicle air conditioner and the like is described. The valve body 1 is provided with a high-pressure refrigerant flow path 2 through which the liquid refrigerant flowing into the evaporator and a low-pressure refrigerant flow path 3 flow out from the evaporator. In the middle of the high-pressure refrigerant flow path 2, there is a valve hole formed by a small-diameter orifice. 4. Therefore, the liquid refrigerant flowing into the high-pressure refrigerant passage 2 from the accumulator (not shown) expands thermally through the valve hole 4 with a relatively small passage area, and flows into the passage 21 . The opening portion on the refrigerant inflow side of the valve hole 4 forms a valve seat, and the opening degree of the valve hole 4 is changed by the approach or separation of the spherical valve body member 5 at the valve hole valve seat. The valve body member 5 is supported by a suppor...

Embodiment 2

[0048] like Figure 5 The shown disc-shaped head has a protruding portion 16a on its lower surface 16e, and the protruding portion 16a is located around a convex portion 16b integrally formed on the central portion of the face 16e of the head 16 as an edge portion 6f. , and the integrated configuration of the head. The convex portion 16b and the protruding portion 16a may be formed separately from the aforementioned head.

[0049] According to the above-mentioned head 16, the convex portion 16b of the head 16 is inserted into the hole formed in the bottom portion 151 of the recess 15 of the outer wall 14. In order to arrange the head 16 in the recess 15 and play a guiding role, the flange The front end 16g of 6f is in contact with the bottom of the recess 15 of the outer wall 14 , and the head 16 is combined with the outer wall 14 . Therefore, the head 16 can be combined with the outer wall 14 stably and firmly. As a result, during the resistance welding of the two, the ene...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a thermal expansion valve. It includes the following several main portions: valve core, diaphragm, air tight chamber and seal head. Said invention also provides the concrete structure of the above-mentioned every portion and the connection mode of all the above-mentioned portions. Besides, said also provides the concrete working principle of said thermal expansion valve and its concrete application method.

Description

technical field [0001] The present invention relates to a thermal expansion valve suitable for an air conditioning system, especially a structure in which a sealing head is used to seal a filling hole of a gas box head (also called a power head) to seal the temperature sensing gas in an airtight chamber. Background technique [0002] There are many types of thermal expansion valves used in refrigeration cycles, such as JP-Ping 8-226567. This thermal expansion valve includes the following: a high-pressure refrigerant passage through which the refrigerant flows into the evaporator and a low-pressure refrigerant passage through which the refrigerant flows out of the evaporator, A valve body provided with a valve hole in the middle of the above-mentioned high-pressure refrigerant flow path, a valve core member that changes the opening of the valve hole by contacting or leaving the valve hole of the valve body, and a drive rod to drive the valve to control the operation of the val...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/14F16K31/64F25B41/06
CPCF25B2341/0683
Inventor 小池隆志史初良裘浩明杜又德尹斌
Owner ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD