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

Electronic expansion valve

An electronic expansion valve, valve body technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of scrap, high production cost, and difficult replacement of stator components.

Pending Publication Date: 2022-01-25
浙江智汇汽车热管理科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 201811146859.8 patent application provides an electric valve, because the stator assembly and the valve core assembly are fixedly connected together by heat riveting, so during the assembly process, when there is a problem in the detection, the stator assembly is not easy to replace, and the entire valve group can only be scrapped, and the production cost relatively high

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
  • Electronic expansion valve
  • Electronic expansion valve
  • Electronic expansion valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see figure 1 , figure 2 , image 3 , the electronic expansion valve includes a valve body 1 and a valve assembly 2, and the valve assembly 2 and the valve body 1 are fixedly connected or detachably connected.

[0026] The valve assembly 2 includes a valve core assembly 10 and a stator assembly 20; the valve core assembly 2 and the valve body 1 are relatively limited, and the valve core assembly 10 is relatively limited relative to the stator assembly 20; that is, the valve core assembly 10 and the stator assembly 20 are detachably connected, The valve assembly 2 is formed as a whole.

[0027] The stator assembly 20 includes a coil 21, a skeleton 22, a buckle 23, and an annular connecting plate 25. The skeleton 22 provides support for the winding of the coil 21; As an injection molding insert, the injection molding body is formed with an insulating layer 24 of the stator assembly 20 on the periphery of the coil 21 and the skeleton 22, which can prevent the stator ass...

Embodiment 2

[0031] see Figure 4 , Figure 5 , Image 6 , the valve body 1 is also provided with at least two stop rod holes 5 (not shown separately), a stop rod 6 is arranged in the stop rod holes, and a stop rod groove 18 cooperating with the stop rod is provided on the valve seat 16, Can be straight or circular. The valve body 1 is formed with at least one gap through which at least a part of the blocking rod protrudes into the cavity, and the portion of the blocking rod protruding into the cavity abuts against or rests against the blocking rod groove 18 Next, the stop rod 6 limits the displacement of the valve seat 16 in the axial direction. All of the above are stated in the background technical documents.

[0032] The ring-shaped connecting plate 25 is fixed on the lower end surface of the insulating layer 24 by heat riveting, and the buckle 26 is welded to the ring-shaped connecting plate 25 . The buckle 26 includes a flat plate portion 261 connected to the lower end surface o...

Embodiment 3

[0035] see Figure 7 , Figure 8 , Figure 9 The flat part 271 of the clasp 27 is ring-shaped, fixed to the lower end surface of the insulating layer 24 by heat riveting, and has a downward extension 272 integrated with the flat part and a radial protrusion 273 of the snap-in part, and the protrusion points to the valve seat direction.

[0036] When assembling the electronic expansion valve, the valve core assembly 10 and the stator assembly 20 are first assembled, and then the stator assembly is assembled on the valve core assembly 10 to form the valve assembly 2. The circumference of the valve seat has a recess 164, and the buckle protrusions 273 are snapped into the recess. 164, through the elastic detachable connection of the buckle; then the valve assembly 2 is inserted into the valve body 1, and the side wall of the insertion hole of the valve body prevents the radial offset of the convex point 273 of the buckle buckle, and further restricts the detachment of the buckl...

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 invention provides an electronic expansion valve. The electronic expansion valve comprises a valve assembly and a valve body, wherein the valve assembly is connected with the valve body, the valve assembly comprises a stator assembly and a valve element assembly, the valve element assembly comprises a rotor, a sleeve, a valve seat and a valve needle, the stator assembly is located at the outer side of the rotor, the rotor is located at the inner side of the sleeve, the valve seat is provided with a valve port, the rotor can drive the valve needle to move relative to the valve port, the stator assembly is fixedly connected with an elastic buckle and detachably connected with the valve element assembly through the elastic buckle, and the valve body limits disengaging of the elastic buckle. The stator assembly and the valve element assembly are detachably connected, so that the stator assembly is convenient to replace, and the requirements of customers on delivery of the whole valve group are met.

Description

technical field [0001] The invention relates to the field of fluid control, in particular to an electronic expansion valve. Background technique [0002] 201811146859.8 patent application provides an electric valve, because the stator assembly and the valve core assembly are fixedly connected together by heat riveting, so during the assembly process, when there is a problem in the detection, the stator assembly is not easy to replace, and the entire valve group can only be scrapped, and the production cost relatively high. 201710255248.6 patent application provides an electric valve, the stator assembly needs to be fixed separately with the valve body. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an electronic expansion valve, through the detachable connection between the stator assembly and the valve core assembly, it is convenient to replace the stator assembly, and it also meets the customer's require...

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 Applications(China)
IPC IPC(8): F16K1/00F16K1/42F16K31/06
CPCF16K1/00F16K1/427F16K31/0655F16K31/0675
Inventor 范志伟叶南伟舒虎刚郭国武
Owner 浙江智汇汽车热管理科技有限公司