JPH0761229A - Structure of fixing heat exchanger to case - Google Patents

Abstract

PURPOSE:To provide a structure of fixing a heat exchanger to a case in an easy installing manner without being effected by the shape of a heat exchanger. CONSTITUTION:Cases 21, 24 accommodate a heat exchanger 11 and hold the heat exchanger 11 by bringing supporting parts 22, 23 into contact with the upper end face 11a of the heat exchanger 11 and bringing supporting parts 25, 26 into contact with the lower end face 11b. The recessed parts 21c, 24c of the cases 21, 24 are fitted to the groove 31c of a rubber bush 31 to fix the rubber bush 31, and the recessed part 32 of the rubber bush 31 is fitted to pipeline parts 12, 13. There is therefore no need to fix the heat exchanger 11 directly to the case 21 or 24, and the design of the cases 21, 24 is improved. In addition, the heat exchanger 11 can be positively assembled into the cases 21, 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a heat exchanger to a case.

[0002]

2. Description of the Related Art Conventionally, a structure shown in FIGS. 5 and 6 is known as a structure for fixing a heat exchanger used in an air conditioner for adjusting the temperature inside a vehicle such as an automobile to a case.
As shown in FIG. 5, the heat exchanger 4 is provided on both end surfaces of the heat exchanger 40.
The L-shaped bracket 41 integrally formed with the case 0 and the support portions 52 and 53 integrally formed with the case 51 with the screw 5.
It is fixed at 5. Then, the case 51 and the case 54 are fitted to fix the pipe portion 42 of the heat exchanger 40, and the heat exchanger 40 is housed in the case 51 and the case 54.

In the structure shown in FIG. 6, cases 62 and 63 are formed in accordance with the shape of the heat exchanger 60, and the cases 62 and 63 are fitted to each other, whereby the heat exchanger 60 and the piping portion of the heat exchanger 60 are formed. 61 is sandwiched and fixed.

[0004]

However, in such a conventional structure for fixing the heat exchanger to the case as shown in FIG. 5, the heat exchanger 40 is fixed to the case 51 with the screw 55 via the bracket 41. Although it can be securely fixed, there is a problem in that many man-hours are required for assembly. In the case shown in FIG. 6, the number of parts is small and the assembly is easy, but since the cases 62 and 63 are design parts, if the shape of the heat exchanger 60 is matched, the design of the cases 62 and 63 is restricted. There is a problem, and if the designs of the cases 62 and 63 are improved, the shape of the heat exchanger 60 may be changed to the cases 62 and 63.
However, there is a problem that the heat exchanger 60 cannot be securely fixed because the shapes of the heat exchangers do not match.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a structure for fixing a heat exchanger to a case which is easy to assemble regardless of the shape of the heat exchanger. To aim.

[0006]

A structure for fixing a heat exchanger to a case according to the present invention for solving the above problems is formed in an insertion portion into which a pipe portion of the heat exchanger can be inserted and an outer peripheral portion. An elastic body having a groove, a support portion that supports the main body of the heat exchanger, and a case having a fitting portion that can be fitted in the groove are provided.

[0007]

In the structure for fixing the heat exchanger of the present invention to the case,
By fitting the pipe portion of the heat exchanger with the elastic body and holding the elastic body with the case, the heat exchanger can be easily assembled to the case via the elastic body.

[0008]

Embodiments of the present invention will be specifically described with reference to the drawings. An embodiment of a structure for fixing a heat exchanger of the present invention to a case is shown in FIGS. As shown in FIG. 2, the air conditioner 10 is fixed to, for example, the ceiling of the vehicle 1 behind the instrument panel 2, and the heat exchanger 11 is housed in the cases 21 and 24. The cases 21 and 24 are fixed to each other with screws or the like, and are fitted into the rubber bush 31 from above and below. The rubber bush 31 is provided on the piping portions 12 and 1 of the heat exchanger 11.
3 is fitted. The refrigerant suction pipe 18 transfers the refrigerant to the heat exchanger 1
1, and the refrigerant delivery pipe 19 delivers the refrigerant that has undergone heat exchange processing in the heat exchanger 11 to the outside of the heat exchanger 11.

From the heat exchanger 11, the piping parts 12 and 13
Has been derived. The pipe joint portions 14 and 15 are joined to the pipe portions 12 and 13, respectively.
And 15 are respectively connected to the suction pipe 18 and the delivery pipe 19 described above. As shown in FIG. 1, the case 21 is integrally formed of a flat wall portion 21a and a peripheral end portion 21b. The flat wall portion 21a is parallel to the upper end surface 11a of the heat exchanger 11 and has a larger area than the upper end surface 11a. The peripheral end portion 21b is formed into a curved surface and a flat surface following the flat wall portion 21a, and surrounds the heat exchanger 11 from the circumference. The support portions 22 and 23 are formed integrally with the case 21, and are in contact with the upper end surface 11 a of the heat exchanger 11. Similarly to the case 21, the case 24 has a flat wall portion 24a.
And the supporting portions 25 and 26 are in contact with the lower end surface 11b of the heat exchanger 11. When the heat exchanger 11 is housed, the cases 21 and 24 are provided with peripheral end portions 21b except for recesses 21c and 24c described later.
And the peripheral end portion 24b are formed so that the end portions thereof come into contact with each other.

As shown in FIG. 1, the supporting portions 22, 23, 25 and 26 have the heat exchanger 1 in the cases 21 and 24, respectively.
When accommodating 1, the support portions 22 and 23 are in contact with the upper end surface 11a of the heat exchanger 11, and the support portion 25 is in contact with the lower end surface 11b.
And 26 are abutted. The peripheral end portions 21b and 24b have recesses 21c and 24c formed in a shape and size that can be fitted into a groove 31c of the rubber bush 31 described later.

The rubber bush 31 is made of elastic material such as rubber and has a pair of arm portions 33 and 34 and a connecting portion 35 connecting the arm portions 33 and 34, as shown in FIGS. 3 and 4. As described above, some deformation can be absorbed. The rubber bush 31 has a cut 31b except for the connecting portion 35, and has a recess 32 having a semicircular cross-sectional shape in which the pipe portions 12 and 13 can be fitted.
An annular groove 31c is formed all around the outer wall of the rubber bush 31, and the recesses 21c and 24c of the cases 21 and 24 are formed.
Can be fitted.

Next, the cases 21 and 2 of the heat exchanger 11
The procedure of assembling to No. 4 will be described. Rubber bush 31
The arm portions 33 and 34 are expanded to sandwich the pipe portions 12 and 13 in the recess 32, and then the arm portions 33 and 34 are closed. Next, the case 2 is inserted into the groove 31c of the rubber bush 31.
The recesses 21c and 24c of 1 and 24 are fitted. Then, at the same time as this fitting, the supporting portions 22, 23, 25 and 26 of the cases 21 and 24 hold the heat exchanger 11,
The heat exchanger 11 is positioned and housed in the cases 21 and 24. As a result, the heat exchanger 11
Are restricted from moving in the directions indicated by arrows A and B shown in FIG.
This restricts the movement in the directions indicated by arrows C and D.

In this embodiment, since the heat exchanger 11 is held by the supporting portions 22, 23, 25 and 26, the case 2 is held.
As long as the heat exchanger 11 does not have to be directly fixed to 1 or 24 and can be mounted in a vehicle, the outer shapes of the cases 21 and 24 may be any shape, and the designability of the cases 21 and 24 is improved. Also, rubber bush 3
Since the pipe parts 12 and 13 of the heat exchanger 11 are fitted with each other at 1, the rubber bush 31 absorbs the looseness of the pipe parts 12 and 13, the cases 21 and 24, and the heat exchangers are accommodated in the cases 21 and 24. 11 can be assembled securely.

In the embodiment of the present invention, the rubber bush 31 is made of rubber, but it is not limited to rubber as long as it is an elastic body capable of fixing the pipe portions 12 and 13.

[0015]

According to the structure for fixing the heat exchanger to the case of the present invention described above, the pipe portion of the heat exchanger is fitted with the elastic body, and the elastic body is fitted with the case to perform the heat exchange. Since the heat exchanger can be fixed with a simple structure of fixing the heat exchanger, the heat exchanger can be easily fixed without directly fixing it to the case, and the design is less dependent on the shape of the heat exchanger. It is possible to provide a high heat exchanger case.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a structure for fixing a heat exchanger of the present invention to a case.

FIG. 2 is a plan view showing an embodiment in which the structure for fixing the heat exchanger to the case of the present invention is applied to an air conditioner for a vehicle.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a schematic explanatory view showing an assembling procedure of an embodiment of a structure for fixing a heat exchanger to a case of the present invention.

FIG. 5 is a schematic cross-sectional view showing an example of a structure for fixing a conventional heat exchanger to a case.

FIG. 6 is a schematic cross-sectional view showing another example of a conventional structure for fixing a heat exchanger to a case.

[Explanation of symbols]

 10 Heat Exchanger 11 Heat Exchanger (Main Body) 12, 13 Piping Section 14, 15 Piping Joint Section 21 Case 21c Recessed Section (Fit Section) 22, 23 Support Section 24 Case 24c Recessed Section (Fit Section) 25, 26 Support Section 31 rubber bush (elastic body) 31c groove 32 recess (insertion part)

Claims (1)

[Claims] 1. An insert part into which a pipe part of a heat exchanger can be inserted,
And an elastic body having a groove formed in the outer peripheral portion, a support portion that supports the main body of the heat exchanger, and a case that has a fitting portion that can be fitted in the groove. Fixing structure for heat exchanger case.