JPH09280773A - Liquid receiving part built-in type condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate insertion in a header pipe from an ordinary direction by a method wherein the part, communicating with an outlet pipe, of a liquid receiving part is arranged at a header pipe in a direction extending substantially vertically to the direction of insertion of a heat-exchange tube in a header pipe. SOLUTION: A liquid receiving part 13, especially a communication part with an outlet pipe 9 thereof, is arranged in a direction extending substantially vertically to a heat-exchange tube insertion direction. Thereby, a partition plate 11 is inserted in the header pipe 3 from a direction reverse to a tube insertion direction. The insertion direction is an ordinary insertion direction of a type incorporating no liquid receiving part 13. Thus, regardless of a liquid receiving part built-in type, a hole for a partition plate insertion is formed in a header pipe 3 part through a method similar to an ordinary method. The partition plate 11 is easily inserted through the hole and joining by brazing after insertion is practicable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid receiving section built-in type condenser having a built-in liquid receiving section for containing condensed liquid refrigerant and guiding it to an outlet pipe.

[0002]

2. Description of the Related Art In this type of condenser, the liquid receiving portion is usually added integrally with the refrigerant outlet side header pipe.
As a method of addition, it is often the case that the liquid receiving portion is formed as a member separate from the header pipe and is joined to the header pipe.

For example, as shown in FIG. 6, a plurality of heat exchange tubes 101 are inserted and connected to the outlet side header pipe 102 in the same direction as the tube insertion direction but on the opposite side to the tube connection side. 103 is provided.

[0004]

However, the condenser with a built-in liquid receiving portion having the above structure has the following problems. That is, when a partition plate is provided in the header pipe 102, the partition plate is normally inserted from the direction A in the drawing, but since the liquid receiving portion 103 is located in this direction, the liquid receiving portion 103 exists. It is difficult to insert the partition plate in this state. Therefore, the liquid receiving portion 103 is connected to the header pipe 10
It is necessary to form a separate member from 2, and insert and join the partition plate into the header pipe 102 and then join the liquid receiving portion 103 to the header pipe 102. Therefore, there is a problem that the manufacturing process becomes complicated.

It is conceivable to insert the partition plate from the direction B in the figure. However, if this is done, the hole for inserting the partition plate and the hole for inserting the heat exchange tube 101 have to come close to each other, so that the header pipe 102 is processed. And the strength of the header pipe is extremely reduced.

Further, since the liquid receiving portion 103 is disposed in the same direction as the tube insertion direction, when the space occupied by the condenser is the same in the width direction of the condenser, heat is exchanged by the amount of the liquid receiving portion 103. There is also a problem in that the effective core area of is reduced.

An object of the present invention is to pay attention to the problems in the conventional structure as described above, and to easily insert the partition plate into the header pipe from the normal direction without causing a problem in processing or strength of the header pipe. (EN) It is possible to provide a structure of a condenser with a built-in liquid receiver, which can be formed and which does not reduce the effective heat exchange area of the condenser core even if the condenser is built-in.

[0008]

In order to solve the above-mentioned problems, a condenser with a built-in liquid receiving portion of the present invention has a liquid receiving portion capable of containing condensed liquid refrigerant and communicating with an outlet pipe of the refrigerant. , A condenser with a built-in liquid receiver provided integrally with one of the header pipes, wherein a portion communicating with the outlet pipe of the liquid receiver is heat-exchanged to the header pipe with respect to the header pipe. It is characterized in that it is arranged in a direction substantially perpendicular to the tube insertion direction.

The liquid receiving part-integrated header pipe as described above can be formed of, for example, a two-hole extruded material.

In such a condenser with a built-in liquid receiving portion, the liquid receiving portion is arranged in the direction substantially perpendicular to the insertion direction of the heat exchange tube with respect to the outlet side header pipe, and the liquid receiving portion has a conventional structure. Since it will not be arranged at the position opposite to the heat exchange tube insertion direction with respect to the header pipe,
From this direction, that is, from the normal direction, the partition plate can be easily inserted into the header pipe. That is, even if the header pipe is provided with a hole for inserting a partition plate, there is no problem in processing or strength of the header pipe,
The partition plate can be easily inserted into the header pipe without any problem in the presence of the liquid receiving portion.

Further, since the header pipe portion and the liquid receiving portion are arranged in series in a direction substantially the same as the flow direction of the external air for heat exchange, the direction perpendicular to the air flow. The effective heat exchange area of the condenser core occupied by the heat exchanger does not decrease, and the target good heat exchanger performance can be secured with the liquid receiving part (with the liquid receiving part built-in). .

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a condenser with a built-in liquid receiver according to an embodiment of the present invention, and show a case where the present invention is applied to a so-called multi-flow type condenser. In the figure, 1 is the entire condenser, 2 is the inlet side header pipe, and 3 is the outlet side header pipe. Between the header pipes 2 and 3,
A plurality of flat heat exchange tubes 4 are arranged, and corrugated fins 5 are arranged between the heat exchange tubes 4. Reinforcing plates 6 and 7 are provided at both ends in the heat exchange tube arrangement direction.

The inlet header pipe 2 has a refrigerant inlet pipe 8 (shown as an inlet union in FIGS. 1 and 2), but such a union structure is also included in the concept of the inlet pipe in the present invention. The same applies to the outlet pipe.), And the header pipe 3 on the outlet side is
It communicates with the outlet pipe 9 through a liquid receiving portion described later. A partition plate 10 is provided in the inlet-side header pipe 2 and a partition plate 11 is provided in the outlet-side header pipe 3, and the refrigerant flows in the condenser main body as indicated by the broken line arrow in FIG.

As shown in FIGS. 3 and 4, the outlet header pipe 3 is provided with a hole 12 for inserting the heat exchange tube 4. The header pipe 3 is provided with a liquid receiving portion 13 integrally with the header pipe 3. In this embodiment, the header pipe 3 portion and the liquid receiving portion 13 portion are 2
The hole extruded material (extruded tube) is formed as an integrated member. The liquid receiving portion 13 includes a portion 14 that communicates with the outlet pipe 9 and a liquid reservoir portion 15 formed at the lower end of the header pipe 3, and the communication portion 14 that communicates with the outlet pipe 9 is the liquid reservoir portion. It plays the role of sucking up the liquid refrigerant from 15.

The communicating portion 14 and the liquid reservoir portion 15 communicate with each other through a notch 17 formed in the lower end of the partition wall 16 as shown in FIG. 5, and the lower end side thereof is closed by a cap 18. .

A communicating portion 14 of the liquid receiving portion 13 which communicates with the outlet pipe 9 is arranged with respect to the header pipe 3 in a direction substantially perpendicular to the insertion direction of the heat exchange tube into the header pipe 3. There is.

In the condenser with a built-in liquid receiving portion constructed as described above, the liquid receiving portion 13, especially the communicating portion 14 to the outlet pipe 9, is substantially in the heat exchange tube insertion direction with respect to the header pipe 3. Since it is arranged in the direction perpendicular to
As shown in FIG. 2, the partition plate 11 can be inserted into the header pipe 3 from the direction opposite to the tube insertion (direction C in the figure) without any problem. This insertion direction is the normal insertion direction in the type in which the liquid receiving section is not built in. Therefore, in spite of the liquid receiving part built-in type, a hole for inserting a partition plate is formed in the header pipe 3 part by a method similar to that usually performed, and the partition plate 11 is easily inserted through the hole and inserted. It can be joined by post brazing. Since the partition plate insertion hole is formed on the side opposite to the tube hole 12, the strength of the header pipe 3 is not reduced, and there is no problem in processing.

Further, as shown in FIG. 2, since the liquid receiving portion 13 and the header pipe 3 are arranged in series in the same direction as the heat exchange external air flow direction E, it is perpendicular to this direction. The effective heat exchange area acting in the direction of is not reduced by the existence of the liquid receiving portion 13. Therefore, although the liquid receiving portion is built-in, the effective core area can be the same as that of the non-built-in type.

In the above embodiment, the multi-flow type condenser has been described, but the present invention is not limited to this, and can be applied to any type of condenser having a built-in liquid receiving portion.

Further, the material of the outlet-side header pipe integrated with the liquid receiving portion is not limited to the two-hole extruded material, and members formed by joining half-divided pipe members to each other may be used. Further, a member in which a brazing material is clad may be used.

[0021]

As described above, in the case of the condenser with a built-in liquid receiving portion of the present invention, the portion of the liquid receiving portion communicating with the outlet pipe is substantially perpendicular to the heat exchange tube insertion direction of the header pipe. Since it is arranged in different directions, the partition plate can be easily inserted into the header pipe without causing problems in processing and strength, and the heat exchange effective area is available despite the liquid receiving part built-in type. Can be prevented.

[Brief description of drawings]

FIG. 1 is a front view of a condenser according to an embodiment of the present invention.

2 is a plan view of the condenser of FIG. 1. FIG.

FIG. 3 is a longitudinal sectional view taken along line III-III in FIG. 2;

FIG. 4 is a perspective view of the liquid receiver integrated header pipe of FIG.

FIG. 5 is an enlarged partial perspective view of the liquid receiving unit-integrated header pipe of FIG.

FIG. 6 is a partial schematic configuration diagram of a conventional condenser.

[Explanation of symbols]

 1 Condenser 2 Inlet side header pipe 3 Outlet side header pipe 4 Heat exchange tube 5 Fins 6, 7 Reinforcement plate 8 Inlet pipe 9 Outlet pipe 10, 11 Partition plate 12 Heat exchange tube insertion hole 13 Liquid receiving part 14 Outlet pipe Communication part to 15 Liquid reservoir

Claims (3)

[Claims] 1. A condenser with a built-in liquid receiving portion, wherein a liquid receiving portion capable of containing condensed liquid refrigerant and communicating with an outlet pipe of the refrigerant is integrally provided on one header pipe, A condenser with a built-in liquid receiver, wherein a portion of the liquid receiver that communicates with the outlet pipe is arranged in a direction substantially perpendicular to the header pipe with respect to the insertion direction of the heat exchange tube into the header pipe. vessel. 2. The condenser with a built-in liquid receiving section according to claim 1, wherein a partition plate is provided in the one header pipe. 3. The condenser with a built-in liquid receiving part according to claim 1, wherein the header pipe with a liquid receiving part is formed of a two-hole extruded material.