JP3036892B2 - Heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger made of metal such as aluminum used as a heat exchanger for a room air conditioner.

[0002]

2. Description of the Related Art In recent years, header type heat exchangers called multi-flow or parallel flow as heat exchangers for room air conditioners, for example, condensers, have high heat exchange efficiency, low pressure loss and ultra compactness. Tend to be put to practical use as one that can realize the above. In this heat exchanger, as shown in FIG. 3 , both ends of a plurality of tubes (52) are connected to a pair of left and right headers (51) (51) in a communicating state. Through 53), it flows into one header (51), is branched into a tube (52), merges into the other header (51), and flows out through an outlet pipe (54). (55) is a corrugated fin.

[0003]

However, as described above, in the configuration provided with the hollow cylindrical headers (51) and (51) having similar functions of dividing and merging the refrigerant, the number of main parts is small. And the structure becomes complicated.

An object of the present invention is to provide a multi-flow type heat exchanger capable of reducing the number of headers used, reducing the number of main components, and simplifying the configuration. .

[0005]

In the above object, according to the Invention The, present invention includes a hollow cylindrical one header (1), a predetermined tune
It is bent into a ring with a constant radius, and both ends are separated and opposed
And a distributed multiple of tubes (2), vertical partition said header <br/> loaders (1) in is provided along its length
Each of these chambers is divided into two chambers by the member (3).
Multiple tubes communicate with each other at opposite ends
And are arranged in parallel to form a part of the circumference as a whole.
The gist of the present invention is a heat exchanger characterized in that the heat exchanger is formed in a cylindrical shape in which the header is positioned .

[0006]

In the above configuration, two heads were conventionally required.
The number of holders is reduced to one, the structure is simplified, and
Because the body is formed in a cylindrical shape, fans and
Peripheral devices such as pressers can be arranged.

[0007]

Next, an embodiment in which the present invention is applied to a heat exchanger for an air conditioner will be described. It goes without saying that the present invention can be applied to various heat exchangers having a header.

In the heat exchanger shown in FIGS. 1A and 1B, (1) is a header, (2) is a flat tube,
(3) the header (1) in vertically divided into right and left two rooms I partition the
The vertical partition member to be split , (4) is the left side in the header (1)
A horizontal partition member for further dividing the right two chambers into a plurality of upper and lower chambers, and (5) are fins for heat radiation. (6)
Is a refrigerant inlet pipe, (7) is the same outlet pipe, and (8) is a side plate.

The header (1) comprises a cylindrical aluminum header pipe (10) and a lid (11) (11) also made of aluminum, which closes an end of the pipe (10). In the header pipe (10), there is a tube insertion hole (12) with a horizontal slit at one side of the peripheral side wall at intervals in the length direction.
Are provided in one row, and the same number of tube insertion holes (12) are provided on the other side at the same pitch as the tube insertion holes (12). Further, a horizontal partition member insertion hole (13) is formed at a predetermined position between the tube insertion holes (12) of each row and extends over a half circumference for inserting the horizontal partition member (4).

[0010] the flat tubes (2) are, der that bending an aluminum extruded member in the width direction in a ring shape at a predetermined radius of curvature is, are oppositely disposed ends spaced apart.

The radiation fins (5) are so-called corrugated fins obtained by bending an aluminum sheet material into a corrugated shape.

The vertical partition member (3) is made of a long rectangular aluminum plate, and its length is determined by the header (1).
, And its width matches the inner diameter of the header. The horizontal partition plate member (13) is made of a semi-circular disk made of aluminum.

The manufacture of the heat exchanger is performed by assembling the components in a temporary assembly with each other and brazing them together. That is, after the vertical partition member (3) is inserted and arranged in the header pipe (10) through the end opening thereof,
The horizontal partition member (4) is inserted and arranged through the insertion hole (13) of the header pipe (10). Due to the arrangement of the horizontal partition member (4), the vertical partition member (3) is corrected in an appropriate direction and its rotation is also restricted. Placed in And
The lids (11) and (11) are fitted and arranged at both ends of the header pipe (10), and both ends of the tube (2) are inserted and arranged in the tube insertion holes (12) and (12). )
The corrugated fins (5) are arranged between them, and the side plate (8), the inlet pipe (6), the outlet pipe (7) and the like are further assembled. Thereafter, the heat exchanger assembly is passed through a brazing furnace, and the whole is joined and integrated. Thus, a heat exchanger is manufactured.

When the refrigerant flows into the first header chamber (1a) of the header (1) through the inlet pipe (6), the refrigerant flows into the first header chamber (1a).
After diverting into the three tubes (2) connected to a) and making a round, they merge into the second chamber (1b) of the header (1), and the next three tubes (2) Is diverted into the inside. Then, it makes a round in the opposite direction, merges into the third chamber (1c) of the header (1), and branches into the next three tubes (2). Then, it makes a further round in the opposite direction, merges into the fourth chamber (1d) of the header (1), and divides into the two tubes (2) that are the final pass.
It merges into the fifth chamber (1e) of the header (1) and flows out through the outlet pipe (7).

In the heat exchanger having the above-described structure, the number of headers, which was conventionally required two, is reduced to one, the number of main components of the heat exchanger is reduced, and the structure is simplified.
In particular, the reduction in the number of headers, which are likely to be expensive to manufacture, can contribute to a reduction in the cost of the entire heat exchanger.

Further, since the heat exchanger is formed in a cylindrical shape as a whole, as shown in FIG. 2, a peripheral device such as a fan (15) and a compressor is arranged in an internal space, and an installation space is provided. Not only can be used effectively, but also because it is structurally integrated in the circumferential direction, it has high rigidity and is advantageous in strength.

[0017]

As described above, the heat exchanger of the present invention has the following features.
One and headers of the hollow cylindrical ring with a predetermined radius of curvature
Plural pieces that are bent in the shape of
The header is divided into two chambers by a vertical partition member provided along the length of the header.
Each of these chambers has multiple tubes facing each other.
Are connected in a communication state and are arranged in parallel , so conventionally two headers were required.
The number of heat exchanger main components has been reduced to one.
As a result, the structure is simplified. In particular, is it costly to make?
Heat exchange by reducing the number of easy-to-use headers
It can also contribute to the cost reduction of the whole vessel.

Further , the heat exchanger is formed in a cylindrical shape as a whole.
The internal space, as shown in Figure 2.
And peripheral equipment such as a fan and a compressor.
If you can only use the installation space effectively
Instead, they are structurally integrated in the circumferential direction.
High rigidity and strength.
You.

[Brief description of the drawings]

FIG. 1A is an overall perspective view of a heat exchanger, and FIG. 1B is a cross-sectional view illustrating a configuration of a header portion .

FIG. 2 is a plan view of the heat exchanger.

FIG. 3 is an overall front view of a conventional heat exchanger.

[Explanation of symbols]

1. Header 2. Tube 3. Vertical partition member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-40495 (JP, A) JP-A-55-116090 (JP, A) JP-A-57-1391 (JP, U) JP-A-4-139 10260 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F28D 1/047 F28F 9/02 F28F 9/02 301

Claims (1)

(57) [Claims] 1. A hollow cylindrical header (1), and a header (1)
It is bent into a ring with a constant radius of curvature, and both ends are separated.
Te and an oppositely disposed a plurality of tubes (2), the header (1) within is divided into right and left two rooms by vertical partitions (3) which is provided along its length, this
In each of these chambers, a plurality of tubes are
Connected in communication and arranged in parallel, as a whole
It is configured in a cylindrical shape with the header positioned in part of
Heat exchanger characterized by comprising Te.