Expansion valve coil assembly

Patent metadata

Field	Value
Publication number	US-12334257-B2
Application number	US-202017440771-A
Country	US
Kind code	B2
Filing date	Apr 14, 2020
Priority date	Apr 15, 2019
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

Disclosed is an expansion valve coil assembly, comprising a coil unit and a housing, wherein the coil unit is provided with a mounting platform, the mounting platform is provided, in a partially protruding manner, with a connecting part, and the housing is sheathed over the connecting part and is fixedly connected to the mounting platform; and a side wall of the connecting part has a concave-convex structure, and the space between an inner side of the housing and the connecting part is filled with a sealing material.

First claim

We claim:

1. An expansion valve coil assembly, characterized by comprising,
a coil unit and a housing,
wherein the coil unit is provided with a mounting platform;
the mounting platform is provided with a connecting portion, and the connecting portion protrudes out from the mounting platform;
the housing is sleeved on the connecting portion, and fixedly connected to the mounting platform;
the connecting portion has a plurality of sidewalls; and
a sealing material is filled in a space between an inner side of the housing and the sidewall of the connecting portion;
the plurality of sidewalls of the connecting portion are defined as a first sidewall, a second sidewall, a third sidewall and a fourth sidewall,
the first sidewall and the third sidewall are symmetrically disposed,
the second sidewall and the fourth sidewall are symmetrically disposed,
a first recess is disposed on the first sidewall, a second recess is disposed on the second sidewall, a third recess is disposed on the third sidewall, and a fourth recess is disposed on the fourth sidewall; and
the first recess, the second recess, the third recess and the fourth recess are in communication with each other, to form a ring-shaped recess around a circumference of the connecting portion.

2. The expansion valve coil assembly of claim 1 , wherein,
the housing and the mounting platform are combined together to form an integral structure by welding.

3. The expansion valve coil assembly of claim 1 , wherein,
a cross section of each of the first recess, the second recess, the third recess and the fourth recess along a direction perpendicular to corresponding sidewall is polygon-shaped.

4. The expansion valve coil assembly of claim 1 , wherein
each of the first sidewall, the second sidewall, and the fourth sidewall comprises a protrusion.

5. The expansion valve coil assembly of claim 4 , wherein
a protrusion is disposed on the third sidewall.

6. The expansion valve coil assembly of claim 1 , wherein
a protrusion is disposed on the at least one of the first sidewall, the second sidewall, the third sidewall and the fourth sidewall of the connecting portion.

7. The expansion valve coil assembly of claim 6 , wherein,
at least one protrusion is disposed on each of the first sidewall, the second sidewall, the third sidewall and the fourth sidewall of the connecting portion, respectively.

8. The expansion valve coil assembly of claim 5 , wherein
a cross section of the at least one protrusion disposed on each of the first sidewall, the second sidewall, the third sidewall and the fourth sidewall of the connecting portion is polygon-shaped.

9. The expansion valve coil assembly of claim 1 ,
wherein an inner side of the housing is provided with a protrusion.

10. The expansion valve coil assembly of claim 9 , wherein,
the housing is a half-surrounded structure comprising a bottom, a first wall, a second wall and a third wall;
the first wall abuts against the first sidewall;
the second wall abuts against the second sidewall; and
the third wall abuts against the fourth sidewall.

11. The expansion valve coil assembly of claim 10 , wherein the protrusion is arranged on at least one of the first wall, the second wall and the third wall.

12. The expansion valve coil assembly of claim 10 , wherein
the protrusion comprises a ripple-shaped structure.

Assignees

• Zhejiang Dunan Artificial Env Co Ltd

Inventors

• Zheng Lifeng
• Wei Bin
• Zeng Qingjun
• Zhang Jiyou

Classifications

• F25B41/31

  Expansion valves · CPC title

• H01F7/126

  Supporting or mounting · CPC title

• F25B41/345

  by solenoids · CPC title

• H01F2007/062

  Details of terminals or connectors for electromagnets · CPC title

• H01F7/06

  Electromagnets; Actuators including electromagnets {(electric coils H01F5/00; devices for holding workpieces using electric force B23Q3/15; load-engaging elements for lifting articles electromagnetically B66C1/06; electromagnetic couplings F16D27/00; magnetic brakes F16D63/002; electromagnetically operated valves F16K11/24, F16K31/00; analysing materials by magnetic means G01N27/72, G01N27/80; electromagnets for winding mechanical clocks G04C1/02; electromagnetic relays H01H51/00; windings for salient poles of dynamo-electric machines H02K3/18; electromagnets for telegraphic communication H04L; for arc lamps H05B31/28)} · CPC title