Air conditioning device

Patent metadata

Field	Value
Publication number	US-12188698-B2
Application number	US-202217886654-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Nov 19, 2021
Publication date	Jan 7, 2025
Grant date	Jan 7, 2025

Abstract

An air conditioning device including a condenser configured to condense a refrigerant gas into a liquid refrigerant, an evaporator configured to phase-change the liquid refrigerant introduced from the condenser into a vapor refrigerant, a refrigerant inlet pipe connected to the evaporator and into which a refrigerant is introduced from the condenser, a capillary tube fully inserted into the refrigerant inlet pipe, and a clamping portion depressed a part of the refrigerant inlet pipe and a part of the capillary tube corresponding to the depressed part of the refrigerant inlet pipe to fix the capillary tube inside the refrigerant inlet pipe.

First claim

What is claimed is:

1. An air conditioning device comprising:
a condenser configured to condense a refrigerant gas into a liquid refrigerant;
an evaporator configured to phase-change the liquid refrigerant introduced from the condenser into a vapor refrigerant;
a refrigerant inlet pipe connected to the evaporator and into which a refrigerant is introduced from the condenser;
a capillary tube fully inserted into the refrigerant inlet pipe; and
a clamping portion depressed a part of the refrigerant inlet pipe and a part of the capillary tube corresponding to the depressed part of the refrigerant inlet pipe to fix the capillary tube inside the refrigerant inlet pipe.

2. The air conditioning device of claim 1 , wherein the capillary tube comprises an expansion portion having an expanded diameter, and the expansion portion includes the depressed part of the capillary tube which corresponds to the depressed part of the clamping portion.

3. The air conditioning device of claim 2 , wherein an inner diameter of the depressed part of the expansion portion which is depressed by the clamping portion is greater than or equal to an inner diameter of the capillary tube.

4. The air conditioning device of claim 1 , further comprising a buffering material arranged between the refrigerant inlet pipe and the capillary tube.

5. The air conditioning device of claim 1 , wherein the refrigerant inlet pipe comprises at least one bending portion that is bent together with the capillary tube.

6. The air conditioning device of claim 5 , further comprising a buffering material arranged between the refrigerant inlet pipe and the capillary tube in the at least one bending portion.

7. The air conditioning device of claim 1 , wherein the capillary tube is made of a flexible material.

8. The air conditioning device of claim 7 , further comprising a shape retention pipe comprising:
a large-diameter portion inserted into the refrigerant inlet pipe, and contacting an inner side of the refrigerant inlet pipe;
a small-diameter portion inserted into an end portion of the capillary tube to fix the capillary tube to the inner side of the refrigerant inlet pipe; and
a connection portion connecting the large-diameter portion to the small-diameter portion,
wherein the depressed part of the refrigerant inlet pipe and the depressed part of the capillary tube are in a position corresponding to the small-diameter portion to fix the capillary tube inside the refrigerant inlet pipe.

9. The air conditioning device of claim 1 , wherein the refrigerant inlet pipe comprises a first portion comprising the capillary tube inserted therein, and a second portion connected to the first portion and provided with a first connection member connected to a first connection pipe into which a refrigerant from the condenser flows.

10. The air conditioning device of claim 9 , wherein a natural potential of the second portion has a value between a natural potential of the first portion and a natural potential of the first connection member.

11. An air conditioning device comprising:
an outdoor unit comprising:
a compressor configured to compress a vapor refrigerant to a high-pressure vapor refrigerant;
a condenser configured to condense the compressed high-pressure vapor refrigerant to a liquid refrigerant; and
a flow control valve configured to control a flow rate of the liquid refrigerant from the condenser;

a first connection pipe connected to the condenser and into which the liquid refrigerant flows from the condenser;
an indoor unit comprising:
a refrigerant inlet pipe connected to the first connection pipe;
a capillary tube fully inserted into the refrigerant inlet pipe, and configured to expand the liquid refrigerant, the capillary tube comprising an expansion portion having an expanded diameter;
an evaporator connected to the refrigerant inlet pipe to evaporate the refrigerant from the condenser; and
a refrigerant outlet pipe in which the refrigerant discharged from the evaporator flows;

a second connection pipe connecting the refrigerant outlet pipe to the compressor-; and
a clamping portion depressed a part of the refrigerant inlet pipe and a part of the expansion portion corresponding to the depressed part of the refrigerant inlet pipe to fix the capillary tube inside the refrigerant inlet pipe;
wherein the refrigerant inlet pipe comprises at least one bending portion that is bent together with the inserted capillary tube.

12. The air conditioning device of claim 11 , wherein a buffering material is between the refrigerant inlet pipe and the capillary tube in the at least one bending portion.

13. The air conditioning device of claim 11 , further comprising:
a shape retention pipe comprising:
a large-diameter portion;
a small-diameter portion inserted into the capillary tube; and
a connection portion connecting the large-diameter portion to the small-diameter portion,

wherein the capillary tube is made of a flexible material, and the clamping portion is depressed the part of the refrigerant inlet pipe and the part of the capillary tube corresponding to the depressed part of the refrigerant inlet in a region corresponding to the small-diameter portion to fix the capillary tube inside the refrigerant inlet pipe.

14. The air conditioning device of claim 11 , wherein the refrigerant inlet pipe comprises a first portion connected to the evaporator and comprising the capillary tube inserted therein, and a second portion connected to the first portion and provided with a first connection member connected to the first connection pipe in an end portion thereof, and a natural potential of the second portion has a value between a natural potential of the first portion and a natural potential of the first connection member.

15. An air conditioning device comprising:
a condenser configured to condense a refrigerant gas into a liquid refrigerant;
a first connection pipe into which a refrigerant from the condenser flows;
an evaporator configured to phase-change the liquid refrigerant introduced from the condenser into a vapor refrigerant;
a refrigerant inlet pipe comprising a first portion connected to the evaporator and a second portion connected to the first portion and provided with a first connection member connected to the first connection pipe in an end portion thereof;
a capillary tube fully inserted into the first portion, the capillary tube comprising an expansion portion having an expanded diameter; and
a clamping portion formed depressed in the refrigerant inlet pipe and the expansion portion to fix the capillary tube inside the refrigerant inlet pipe.

16. The air conditioning device of claim 15 , further comprising:
a shape retention pipe comprising:
a large-diameter portion;
a small-diameter portion inserted into the capillary tube; and
a connection portion connecting the large-diameter portion to the small-diameter portion,

wherein the capillary tube is made of a flexible material, and the clamping portion is depressed in the refrigerant inlet pipe and the capillary tube in a region corresponding to the small-diameter portion to fix the capillary tube inside the refrigerant inlet pipe.

17. The air conditioning device of claim 15 , wherein the refrigerant inlet pipe comprises at least one bending portion that is bent together with the capillary tube, and a buffering material is between the refrigerant inlet pipe and the capillary tube in the at least one bending portion.

18. The air conditioning device of claim 15 , wherein a natural potential of the second portio

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Munsub
• Lee Hyeongjin
• Jung Duhan
• Choi Jaewoo

Classifications

• F25B41/37 Primary

  Capillary tubes · CPC title

• F25B39/00 Primary

  Evaporators; Condensers · CPC title

• F25B2500/01

  Geometry problems, e.g. for reducing size · CPC title

• F25B2500/12

  Sound · CPC title

• F25B41/40 Primary

  Fluid line arrangements · CPC title