JPH0271091A - Heat exchanger - Google Patents

Abstract

PURPOSE:To reduce the number of processes, to reduce the number of parts, and to increase the degree of freedom of the shape of an end plate by a method wherein an end plate held commonly with an inner fin is mounted to an outer fin, and a hole with a flange through which the pipe of the inner fin is inserted is formed in the end plate. CONSTITUTION:An end plate 6 is formed in a size being large enough to be commonly held with an inner fin 3, and a hole 8 through which a pipe 7 is inserted and a flange 9 protruded along the hole 8 and in a reverse direction to that of the inner fin 3 are formed. A heat exchanger body 1 in a flat shape is positioned on a bending jig 10 to perform bending processing, and is formed in a given shape. In this case, since the bending radius of an outer fin 2 is different from that of the inner fin 3 (a bending radius is larger by an amount equivalent to the thickness of the inner fin 3), the outer fin is moved. The movement causes movement of the end plate 6, the pipe 7 mounted to the inner fin 3 is inserted in the hole 8 formed in the end plate 6, the outer and inner fins 2 and 3 are adhered to each other by means of the pipe 7 and the flange 9 and are secured mechanically to form the heat exchanger body 1 in a given shape.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat exchanger used in a refrigeration cycle or the like.

2. Description of the Related Art Conventional integrated air conditioners have been constructed as shown in FIGS. 4 to 6.

That is, a bulkhead 102, a compressor 103, and an air generator 104 are provided on a substrate 101, and an indoor fan 105 and an outdoor fan 106 are provided on the bulkhead 102.
A motor 107 is attached to drive the motor.

108 is an indoor heat exchanger fixed to the bulkhead 102 and the substrate 101. 109 is air guider 104
and an outdoor heat exchanger fixed to the substrate lot, which together with the compressor 103 and the indoor heat exchanger 108 constitute a well-known refrigeration cycle.

Here, the outdoor heat exchanger 109 will be explained.

The fins 110 constitute the outside of the outdoor heat exchanger 109, and the fins 111 constitute the inside of the outdoor heat exchanger 9. Together with the pipes 112, they influence the heat exchanger characteristics.

113 is an end plate that engages the fins 110 and 111 together. 114 is an end plate attached to one side of the fin 110, and 115 is an end plate attached to one side of the fin 111. Numeral 116 is a screw that integrally engages the end plate 114 and the end plate 11, and is tightened after the heat exchanger is bent.

Problems to be Solved by the Invention However, in the heat exchanger configured as described above, there are many parts that make up the heat exchanger 109, and two types of end plates 113, 114, and 115 are connected with screws 116. Therefore, the degree of freedom in the shape of the end plate and the heat exchanger is low, and the number of processing steps is large.

Means for Solving the Problems In order to solve the above problems, the present invention provides inner fins (
The end plate is shared with the inner row heat exchanger), and this end plate is provided with a flanged hole into which the inner fin pipe enters.

action The effects of the above configuration are as follows.

The outer fin of the heat exchanger, one of which is fixed to the same end plate, has an end plate shared with the inner fin, and this end plate has a flanged hole into which the pipe of the inner fin enters. The inner pipe enters the hole and the flange portion, and the outer and inner fins are mechanically brought into close contact to form a predetermined shape.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3. Here, the main body structure of the integrated air conditioner is the same as that of the conventional example, so a description thereof will be omitted.

In the figure, 1 is a heat exchanger main body. 2 is the outer fin of the heat exchanger l, 3 is the inner fin of the heat exchanger, 4 is the end plate to which the outer fin 2 and the inner fin 3 are fixed, 5 is the pipe of the outer fin 2, and 6 is the outer fin of the heat exchanger 5. The end plate 7 fixed to the fin 2 is a pipe of the inner fin 3.

The end plate 6 will now be explained. The end plate 6 is formed to a size that can be shared with the inner fin 3, and has a hole 8 into which the pipe 7 is inserted and a flange 9 that projects along the hole 8 and in the opposite direction to the inner fin 3. It is provided.

Next, the bending process of the heat exchanger main body 1 and the method of engaging the outer fins 2 and inner fins 3 will be explained.

First, the heat exchanger main body l is made in a flat shape as shown in FIG. Next, this flat-shaped heat exchanger main body 1 is placed on a bending jig 10, and force is applied in the directions of arrows C and D to bend it into a predetermined shape shown by a two-dot chain line. do.

At this time, the outer fin 2 has a different bending radius from the inner fin 3 (the bending radius is larger by the thickness of the inner fin 3), so
Move in the direction of arrow E. Due to this movement, the end plate 6 also moves in the direction of arrow E, and the pipe 7 provided on the inner fin 3 is inserted into the 68 provided on the end plate 6.
The outer fins 2 and inner fins 3 are brought into close contact with each other by the pipes 7 and the flanges 9, and are mechanically fixed to form a heat exchanger main body l having a predetermined shape.

Also, in this embodiment, a two-row heat exchanger was explained, but
There may be two or more rows.

Effects of the Invention As described above, the present invention provides an outer fin of a heat exchanger, one of which is fixed to the same end plate, an end plate shared with the inner fin, and a flange into which the pipe of the inner fin is inserted. By providing the holes, the outer fins and inner fins can be brought into close contact and mechanically engaged simply by bending the heat exchanger. As a result, the number of processing steps and the number of parts can be reduced. Furthermore, since the end plates are not engaged with screws, the degree of freedom in the shape of the end plates increases.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of a heat exchanger showing an embodiment of the present invention, Fig. 2 is a perspective view of the heat exchanger, Fig. 3 is a processing explanatory diagram of the heat exchanger, and Fig. 4 is FIG. 5 is a perspective view of the main parts of a conventional heat exchanger, FIG. 5 is a perspective view of the same heat exchanger, and FIG. 6 is a schematic plan view of an integrated air conditioner. l... Heat exchanger main body, 2... Outer fin, 3... Inner fin, 4... End plate,
5...Pipe, 6...End plate, 7...
...pipe, 8 ... hole, 9 ... flange. Name of agent Patent attorney Shigetaka Awano Haka 1 person Fig./--One heat exchange, Atsuki λ Wood --- Rib flight j Fin 5-m-Bahia (A) 7-Bazubu<B ) Figure

Claims (1)

[Claims] An end plate for simultaneously fixing multiple rows is provided on either the left or right side of the multiple row heat exchanger having a bend, and an end plate shared with the inner heat exchanger is provided on the other outer peripheral row heat exchanger, and this end plate is provided with an end plate that is shared with the inner heat exchanger. A heat exchanger with flanged holes for inserting the inner row heat exchanger pipes.