FLANGE, PIPE, AND FLANGE STRUCTURE

Abstract

The present invention relates to a flange, and a pipe and a flange structure and, more particularly, to a pipe and a flange structure, which easily enable the pipe connection and the assembling of an expansion valve of a vehicle air conditioner using two or more evaporators, increase the durability, and facilitate the flow of a refrigerant.

Description

Claims

1. A pipe and flange structure comprising a flange for connecting an expansion valve and a pipe that transfers a refrigerant to an evaporator with each other, wherein the flange includes: a body;a supply passage including a first inlet and a first outlet positioned at both ends thereof for a refrigerant to be introduced from the expansion valve and supplied to the evaporator;a discharge passage including a second inlet and a second outlet positioned at both ends thereof for the refrigerant to be introduced from the evaporator and supplied to the expansion valve,the first inlet and the second outlet, connected to the expansion valve, are positioned on one surface of the body to be parallel to each other, andthe first outlet and the second inlet are respectively positioned on both surfaces of the body opposing each other among the remaining surfaces other than the one surface.

2. The structure of claim 1, wherein the flange includes the supply passage and discharge passage spaced apart from each other by a predetermined distance in the height direction.

3. The structure of claim 1, wherein the pipe is fixed by welding or caulking when one pipe connects the flange and the evaporator with each other in the pipe and flange structure.

4. The structure of claim 1, wherein the pipe connecting the flange and the evaporator with each other is divided into two or more pipes in the pipe and flange structure, and a first fixing part and a second fixing part fixed to each other by a fixing means are respectively positioned at connection portions of two pipes.

5. The structure of claim 4, wherein the fixing means uses a bolt and a nut.

6. The structure of claim 1, further comprising a fastening reinforcement part positioned at an end of the pipe, connected to the first outlet or the second inlet, when the pipe connected to the first outlet or second inlet of the flange is divided into two or more pipes in the pipe and flange structure.

7. The structure of claim 6, wherein the body includes: an extension part extending from a predetermined region in the height direction where the first outlet or second inlet of the flange is positioned, in a direction opposite to the surface to which the expansion valve is connected; and a protrusion protruding parallel to the first outlet or second inlet of the flange from the extension part in an outward direction in which the first outlet or second inlet is positioned, and the fastening reinforcement part is positioned to correspond to the extension part, and includes a fixing groove into which the protrusion is inserted.

8. The structure of claim 1, wherein the two or more evaporators are connected in series with each other in the pipe and flange structure.

9. The structure of claim 8, wherein the pipe connecting the two evaporators to each other is divided into two or more pipes in the pipe and flange structure, and the first fixing part and the second fixing part fixed to each other by the fixing means are respectively positioned at connection portions of two pipes.

10. A flange comprising: a body;two or more passages passing through the inside of the body; anda fluid inlet and a fluid outlet respectively positioned at both ends of each of the passages,wherein the inlet and outlet of each of the passages are positioned on different surfaces of the body.

11. The flange of claim 10, wherein the passages include one supply passage and one discharge passage, the supply passage includes a first inlet which is the fluid inlet and a first outlet which is the fluid outlet that are positioned at both ends thereof, and the discharge passage includes a second inlet which is the fluid inlet and a second outlet which is the fluid outlet that are positioned at both ends of thereof,the first inlet and the second outlet are positioned on one surface of the body to be parallel to each other, andthe first outlet and the second inlet are positioned on the remaining surfaces of the body other than the one surface.

12. The flange of claim 11, wherein the first outlet and the second inlet are positioned on both surfaces of the body opposing each other among the remaining surfaces other than the one surface.

13. The flange of claim 12, wherein the first outlet and the second inlet are positioned on the surfaces of the body opposing each other.

14. The flange of claim 11, wherein the supply passage and the discharge passage are spaced apart from each other in the height direction.

15. The flange of claim 11, further comprising: an extension part in which a predetermined region corresponding to the first outlet or the second inlet protrudes from the body; anda coupling part positioned on the extension part.

16. The flange of claim 15, wherein the coupling part protrudes from the extension part in a direction in which the first outlet or the second inlet is positioned.