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CN-224230397-U - Electronic expansion valve

CN224230397UCN 224230397 UCN224230397 UCN 224230397UCN-224230397-U

Abstract

The utility model relates to the technical field of expansion valves, in particular to an electronic expansion valve. The electronic expansion valve comprises a coil component and a valve body, wherein the coil component is provided with a shell, the bottom of the shell is provided with an opening, one end of the valve body stretches into the shell through the opening, a first connecting portion is constructed at the bottom of the shell, a second connecting portion is constructed at the outer portion of the valve body, at least part of the second connecting portion protrudes out of the outer wall of the valve body in the radial direction, and the first connecting portion and the second connecting portion are in limiting clamping connection. The valve body has the advantages that the second connecting part is constructed on the outer peripheral side of the valve body, the first connecting part is constructed on the bottom of the valve body, the first connecting part and the second connecting part can be directly and limitedly clamped, the outer side of the valve body or the outer side of the valve body is not required to be additionally provided with the limiting structure to assist assembly, the limiting clamping can be realized by the structures of the valve body and the valve body, the production efficiency is improved, the assembly process is simplified, and the manufacturing cost is reduced.

Inventors

  • HUANG HONGFENG
  • ZHAO JUN
  • ZHANG JIYOU

Assignees

  • 浙江盾安禾田金属有限公司

Dates

Publication Date
20260512
Application Date
20250425

Claims (18)

  1. 1. An electronic expansion valve, comprising: The coil component is provided with a shell (10), and an opening (11) is formed in the bottom of the shell (10); The coil component is fixedly connected with the valve body (20), and one end of the valve body (20) extends into the shell (10) through the opening (11); The bottom of the shell (10) is provided with a first connecting part, the outer part of the valve body (20) is provided with a second connecting part, at least part of the second connecting part protrudes out of the outer wall of the valve body (20) along the radial direction, and the first connecting part is in limit fit with the second connecting part.
  2. 2. The electronic expansion valve according to claim 1, wherein at least part of the first connecting portion is arranged at the bottom of the housing (10) in a protruding manner, the first connecting portion is provided with a limiting groove (121), and the second connecting portion is in limiting fit with the limiting groove (121); The first connecting part is arranged to be a boss (12), the limiting groove (121) is formed in the inner side of the boss (12), the second connecting part is arranged to be a convex rib (211), and the convex rib (211) is in limiting fit with the limiting groove (121).
  3. 3. The electronic expansion valve according to claim 2, wherein the number of the bosses (12) is plural, and the plural bosses (12) are arranged at intervals along the circumferential direction of the housing (10).
  4. 4. An electronic expansion valve according to claim 3, wherein a plurality of bosses (12) are provided, a limit bump (24) is provided on the outer peripheral side of the valve body (20) in a protruding manner, the limit bump (24) is provided outwardly in the radial direction of the valve body (20), and the limit bump (24) is provided between two adjacent bosses (12) and is in limit fit with two adjacent bosses (12).
  5. 5. An electronic expansion valve according to claim 3, wherein a joint (23) is connected to the valve body (20), at least part of the joint (23) extending in a radial direction of the valve body (20) and being limited between two adjacent bosses (12).
  6. 6. The electronic expansion valve according to claim 2, wherein a notch (213) is provided in the second connecting portion, and a width of the notch (213) is greater than or equal to a width of the boss (12) along a circumferential direction of the valve body (20); And/or an abutment plane is provided on the outer peripheral side of the valve body (20), the abutment plane extending along the axial direction of the valve body (20).
  7. 7. The electronic expansion valve according to claim 2, wherein the protruding rib (211) is separately arranged with the valve body (20), a connecting hole (25) is formed in the valve body (20), one end of the protruding rib (211) is bent inwards along the radial direction of the valve body (20) and is connected with the connecting hole (25), and the other end of the protruding rib (211) is bent outwards along the radial direction of the valve body (20) and is in limit fit with the boss (12).
  8. 8. The electronic expansion valve according to claim 7, wherein the valve body (20) is provided with a connecting groove (26), the protruding rib (211) is clamped with a groove wall of the connecting groove (26), and the connecting hole (25) is formed in a groove bottom of the connecting groove (26).
  9. 9. The electronic expansion valve according to claim 1, wherein the first connecting portion is provided as a buckle (40), the buckle (40) extends along the axis of the housing (10) and cooperates with the bottom of the housing (10) to form a cooperation groove (41), the electronic expansion valve is provided with a fixing frame (50), and the second connecting portion is of a plate-shaped structure and cooperates with the cooperation groove (41) in a limiting mode.
  10. 10. The electronic expansion valve according to claim 9, wherein the clasp (40) comprises a connecting section (42) and an extending section (43), the connecting section (42) is connected with the housing (10), the extending section (43) is connected with an end of the connecting section (42) away from the housing (10) and extends toward an axial direction of the housing (10), and the extending section (43) is spaced from the housing (10) in an axial direction of the electronic expansion valve.
  11. 11. The electronic expansion valve according to claim 10, wherein the connecting section (42) extends along an axis of the housing (10), the fitting groove (41) penetrates through both sides of the buckle (40) along a circumferential direction of the housing (10), the fixing frame (50) comprises a limiting plate (51), and the second connecting portion is the limiting plate (51) and is in limiting fit with the fitting groove (41).
  12. 12. The electronic expansion valve according to claim 11, wherein one of the buckle (40) and the limiting plate (51) is provided with a protrusion (44), the other is provided with a groove (52), and the protrusion (44) is correspondingly clamped with the groove (52).
  13. 13. The electronic expansion valve according to claim 12, wherein the projection (44) is projected on a side wall of the fitting groove (41) opposite to the bottom of the housing (10), the recess (52) is opened on a side of the limiting plate (51) facing the projection (44), or, The bottom of the shell (10) is convexly provided with the protrusion (44), the protrusion (44) is positioned in the matching groove (41), and one side of the limiting plate (51) facing the shell (10) is provided with the groove (52).
  14. 14. The electronic expansion valve according to claim 11, wherein the limiting plates (51) are plural, and the plurality of limiting plates (51) are disposed at intervals around the valve body (20).
  15. 15. The electronic expansion valve of claim 1, wherein the first connection portion and the second connection portion are snap-fit.
  16. 16. The electronic expansion valve according to claim 1, wherein the housing (10) comprises an upper waterproof shell (15), a lower waterproof shell (14) and an annular body (13), the bottom of the housing (10) being located at the lower waterproof shell (14).
  17. 17. The electronic expansion valve according to claim 16, wherein the coil component has a stator assembly (60), the upper waterproof case (15) covers an upper portion of the stator assembly (60), the lower waterproof case (14) covers a lower portion of the stator assembly (60), an annular gap is formed between the upper waterproof case (15) and the lower waterproof case (14), and the annular body (13) is formed of a material injected into the annular gap and an assembly gap of the stator assembly (60).
  18. 18. The electronic expansion valve according to claim 16, characterized in that the coil part has a stator assembly (60), the upper waterproof shell (15), the lower waterproof shell (14) and the annular body (13) being injection molded integrally with the stator assembly (60).

Description

Electronic expansion valve Technical Field The utility model relates to the technical field of expansion valves, in particular to an electronic expansion valve. Background Electronic expansion valves typically include a coil member and a valve body fixedly connected to the coil member. In the existing electronic expansion valve, a limiting structure special for installing a valve body and a coil component, such as a clamping piece or a positioning piece, is additionally arranged on the outer periphery side of the coil component, and the valve body and the coil component need to be clamped by the clamping piece, so that the problems of complex production process, low assembly efficiency and the like are caused. Disclosure of utility model In view of the above technical problems, the present utility model provides an electronic expansion valve. The electronic expansion valve comprises a coil component, a valve body and a valve body, wherein the coil component is provided with a shell, an opening is formed in the bottom of the shell, the coil component is fixedly connected with the valve body, one end of the valve body stretches into the shell through the opening, a first connecting part is formed in the bottom of the shell, a second connecting part is formed in the outer part of the valve body, at least part of the second connecting part protrudes out of the outer wall of the valve body in the radial direction, and the first connecting part and the second connecting part are in limiting clamping connection. So set up, the casing is used for protecting the coil of installing wherein, and the valve body stretches into in the casing from the opening to this butt and spacing coil for each structure is more stable. The periphery side of valve body is constructed with the second connecting portion, and the bottom construction of casing has first connecting portion, and first connecting portion and second connecting portion can direct spacing joint, need not to add limit structure in the casing outside or the valve body outside and assist the assembly, and the spacing joint just can be realized to the structure of casing and valve body self, improves production efficiency, simplifies assembly process, reduction in manufacturing cost. In one embodiment, at least part of the first connecting part is arranged at the bottom of the shell in a protruding way, the first connecting part is provided with a limiting groove, and the second connecting part is in limiting fit with the limiting groove; The first connecting part is arranged as a boss, the inner side of the boss is provided with the limit groove, the second connecting part is arranged as a convex rib, and the convex rib is in limit fit with the limit groove. In one embodiment, the number of the bosses is plural, and the plural bosses are arranged at intervals along the circumferential direction of the housing. In one embodiment, the number of the bosses is plural, a limit bump is provided on the outer peripheral side of the valve body, the limit bump is protruded outwards along the radial direction of the valve body, and the limit bump is disposed between two adjacent bosses and is in limit fit with two adjacent bosses. In one embodiment, the valve body is connected with a joint, at least part of the joint extends along the radial direction of the valve body and is limited between two adjacent bosses. In one embodiment, the second connecting portion is provided with a notch, and the width of the notch is greater than or equal to the width of the boss along the circumferential direction of the valve body; And/or, an abutting plane is arranged on the outer peripheral side of the valve body, and the abutting plane extends along the axial direction of the valve body. In one embodiment, the protruding rib and the valve body are arranged in a split mode, a connecting hole is formed in the valve body, one end of the protruding rib is bent inwards in the radial direction of the valve body and connected with the connecting hole, and the other end of the protruding rib is bent outwards in the radial direction of the valve body and is in limiting fit with the boss. In one embodiment, the valve body is provided with a connecting groove, the convex rib is clamped with the groove wall of the connecting groove, and the connecting hole is formed in the groove bottom of the connecting groove. In one embodiment, the first connecting portion is configured as a buckle, the buckle extends along an axis of the housing and cooperates with a bottom of the housing to form a mating groove, the electronic expansion valve has a fixing frame, and the second connecting portion is in a plate-shaped structure and cooperates with the mating groove in a limiting manner. In one embodiment, the buckle comprises a connecting section and an extending section, the connecting section is connected with the shell, the extending section is connected with one end of the connecting section, which is far away