JP2001311596A - Tank structure of heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tank structure which does not require caulking of a tube plate for a resin-made tank for a heat exchanger. SOLUTION: A tube plate 4 is formed at one end of a tank main body 1 and a rubber plate 5 for sealing having an elastic tube passing hole 3a aligned with a tube passing hole 3 in the tube plate 4 is provided. End caps 2 are capped on both ends of the tank main body 1 in such a manner that bent parts 9a at both ends of a support member 9 of a core 8 are inserted in inner circumferences of the end caps 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure in a resin tank of a heat exchanger for an automobile.

[0002]

2. Description of the Related Art A resin tank structure of a heat exchanger for an automobile has a resin tank main body formed in an elongated box shape, and a metal tube plate fitted in an opening thereof. In the tube plate, an annular groove is recessed at the peripheral edge, and a claw portion for caulking is raised at an edge of a side wall of the groove. Then, the resin tank body was fitted into the annular groove of the tube plate via an O-ring, and the claw portion of the tube plate was caulked to complete the tank.

[0003]

In the manufacturing process of the resin tank, the caulking process of the tube plate is extremely troublesome, and leakage may occur due to poor caulking. Further, once assembled, the tank has a disadvantage that it is difficult to disassemble the tank, and inspection and repair is troublesome. Then, this invention makes it a subject to solve these problems.

[0004]

According to the first aspect of the present invention, there is provided a resin-made tank main body 1 having both ends in the longitudinal direction and having a cylindrical shape, and a pair of resin tank bodies 1 fitted into the both ends of the opening. A resin end cover 2 and a tube plate portion 4 arranged on one side along the longitudinal direction of the tank main body 1 and having a large number of tube insertion holes 3 opened in parallel, and the tube plate portion 4 integrally formed with the tube plate portion 4. A sealing rubber plate 5 having an elastic tube insertion hole 3a fixed and arranged in alignment with the tube insertion hole 3, and a number of fins 6 and tubes 7 arranged in parallel, the end of each tube 7 is provided. It has a core 8 inserted into the elastic tube insertion hole 3a, and support members 9 fixed on both sides of the core 8, and both ends in the longitudinal direction of the support member 9 are bent into an L-shaped cross section. With bent part 9a A tank structure of a heat exchanger in which the bent portion 9a is supported by fitting the inner peripheral surface of said end cap 2.

According to a second aspect of the present invention, in the first aspect, the tank main body 1 is formed in a U-shaped cross section, and a pair of concave grooves 10 are formed on the inner surface of the opening edge of both side walls. A first member 1a, and a second member 1b of which the widthwise edges are press-fitted into the pair of concave grooves 10, and which constitutes the tube plate portion 4. The second member 1b has the width thereof. This is a tank structure of a heat exchanger in which the sealing rubber plate 5 is coated on both edges in the direction.

According to a third aspect of the present invention, in the first aspect, the tank body 1 has a first member 1a formed in a C-shaped cross section, and a C-shaped opening edge of the first member 1a. And a second member 1b that forms the tube plate portion 4. The second member 1b is configured such that the groove 11 is formed by the rubber plate for sealing. 5 is a tank structure of the heat exchanger formed in 5. According to a fourth aspect of the present invention, in the first aspect, the tubular tank body 1 has a tank structure of a heat exchanger in which the tube plate portion 4 is integrally formed.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a main part of a tank structure of a heat exchanger showing a first embodiment of the present invention, FIG. 2 is a transverse sectional view showing an assembled state thereof, and FIG. 3 is a longitudinal sectional view of the same. . In this example, the tank body 1 has a first member 1a.
And the second member 1b. The first member 1a is made of a synthetic resin material, has a U-shaped cross section, and has a pair of concave grooves 10 facing each other on the inner side of the opening edges of both side walls. In the second member 1b, a sealing rubber plate 5 is coated on the outer periphery of a metal tube plate portion 4. A large number of tube insertion holes 3 are formed at regular intervals in the tube plate portion 4, and elastic tube insertion holes 3 are formed in sealing rubber plates 5 at positions corresponding to the holes.
a is provided.

In this example, a number of flat tubes 7 are juxtaposed, corrugated fins 6 are arranged between the tubes 7, and the two are integrally brazed and fixed.
The core 8 is constituted. Support members 9 are brazed and fixed to both sides (one side omitted) of the core 8 via fins 6. A longitudinal end of the support member 9 is bent in an L shape, and a bent portion 9a is formed there. Then, both sides of the second member 1b composed of the tube plate portion 4 and the sealing rubber plate 5 are pressed into the concave grooves 10 of the first member 1a. End lids 2 are fitted to both ends in the longitudinal direction of the tank body 1 thus configured. The end cover 2 includes a bent portion 9 a at the end of the support member 9, and has an annular groove 13 that is substantially aligned with both longitudinal end surfaces of the tank body 1.
An O-ring 14 for sealing is fitted in the inner frame 13.
The end cover 2 thus configured is fitted to both longitudinal end surfaces of the tank body 1, and the end of the core 8 is supported via the bent portion 9 a of the support member 9 as shown in FIG.

Next, FIG. 4 is an exploded perspective view of a main part showing a second embodiment of the present invention, FIG. 5 is a transverse sectional view thereof, and FIG.
Is a longitudinal sectional view of the same. In this example, the first member 1a of the tank body 1 is formed in a C-shaped cross section, the second member 1b is joined to a sealing rubber plate 5 on a tube plate portion 4, and the sealing rubber plate 5 is moved in the width direction. Grooves 11 on both sides
Are formed. And the concave groove 11 is the first member 1a.
To the opening edge of the C-shape. Then, the concave groove 11 is press-fitted into the opening edge of the first member 1a, and the end covers 2 are fitted to both ends in the longitudinal direction. The annular groove 13 of the end cover 2 includes the bent portion 9a of the support member 9 in a state where the second member 1b is mounted, and is aligned with both ends in the longitudinal direction.

Next, FIG. 7 is an exploded perspective view of a main part showing a third embodiment of the present invention, FIG. 8 is a transverse sectional view showing an assembled state, and FIG. 9 is a longitudinal sectional view of the same. This example is shown in FIG.
As shown in FIG. 9, the tank body 1 is formed in a cylindrical shape,
A large number of tube insertion holes 3 are formed on the outer peripheral surface, and a sealing rubber plate 5 is coated on the inner and outer surfaces of the tank body 1 including the tube insertion holes 3. An elastic tube insertion hole 3 a is formed in the sealing rubber plate 5, and is slightly smaller than the outer periphery of the tube 7. Then, the tubes 7 and the fins 6 are arranged alternately, and the space therebetween is brazed to form the core 8, and the support members 9 are fixed to both sides of the core 8 via the fins 6. Each of the tubes 7 of the core 8 is press-fitted into the elastic tube insertion hole 3a of the tank body 1, and then the end cover 2 is fitted to both ends of the tank body 1 in the longitudinal direction, thereby completing the present tank structure.

Next, FIG. 10 shows a fourth embodiment of the present invention, in which a fan shroud 12 is provided integrally with the tank body 1. Its fan shroud 12
Except for the above, it is the same as the first embodiment. Further, a front end (not shown) or the like may be protruded from the outer periphery of the tank body 1.

[0012]

The tank structure according to claim 1 is
Since the bent portions 9a of the support members 9 fixed to both sides of the core 8 are configured to fit into the inner peripheral surface of the end cover 2, both ends of the core 8 can be reliably supported by the end cover 2.
According to the second aspect of the present invention, the tank body 1 is formed in a U-shaped cross section, and a pair of concave grooves 10 are formed on the inner surface sides of the opening edges of both side walls.
Is formed, and both sides of the tube plate portion 4 are press-fitted into the concave grooves 10, so that a tank structure which is easy to assemble and has relatively high pressure resistance can be provided.

According to the third aspect of the present invention, the tank body 1 has the first member 1a formed in a C-shaped cross section and the second member 1b constituting the tube plate portion 4, The grooves 11 are provided on both edges of the two members 1b, and the C-shaped opening edge of the first member 1a is aligned with the grooves 11, so that the confidentiality and pressure resistance of the tank body can be improved. According to the fourth aspect of the invention, since the cylindrical tank body 1 is formed integrally with the tube plate portion 4, the pressure resistance of the tank can be further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing a first embodiment of a tank structure of a heat exchanger of the present invention.

FIG. 2 is a cross-sectional view showing an assembled state of FIG. 1;

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is an exploded perspective view of a main part showing a second embodiment of the present invention.

FIG. 5 is a transverse sectional view showing the assembled state of FIG. 4;

FIG. 6 is a longitudinal sectional view of the same.

FIG. 7 is an exploded perspective view of a main part showing a third embodiment of the present invention.

FIG. 8 is a cross-sectional view showing the assembled state of FIG. 7;

FIG. 9 is a longitudinal sectional view of the same.

FIG. 10 is a sectional view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank main body 1a 1st member 1b 2nd member 2 End cover 3 Tube insertion hole 3a Elastic tube insertion hole 4 Tube plate part 5 Sealing rubber plate 6 Fin 7 Tube 8 Core 9 Support material 9a Bent part 10 Concave groove 11 Concave part Groove 12 Fan shroud 13 Annular groove 14 O-ring

Claims (4)

[Claims] 1. A resin-made tank body 1 having both ends opened in a longitudinal direction and formed in a cylindrical shape, a pair of resin-made end covers 2 fitted into the both-end openings, A tube plate portion 4 that is arranged on one side along the longitudinal direction and has a large number of tube insertion holes 3 opened in parallel; and is integrally fixed to the tube plate portion 4 and is arranged in alignment with the tube insertion holes 3. A sealing rubber plate 5 having an elastic tube insertion hole 3a, a number of fins 6 and tubes 7 arranged in parallel,
The end of each tube 7 is connected to the elastic tube insertion hole 3a.
And a support member 9 fixed to both sides of the core 8. Both ends of the support member 9 in the longitudinal direction have a bent portion 9 a bent into an L-shaped cross section. , The bent portion 9a of the end cover 2
The tank structure of the heat exchanger that is supported by being inserted into the inner peripheral surface of the heat exchanger. 2. The first tank body according to claim 1, wherein the tank main body is formed in a U-shaped cross section, and a pair of concave grooves is formed on an inner surface side of an opening edge of both side walls.
A member 1a and a second member 1b which press-fits both edges in the width direction into the pair of concave grooves 10 to constitute the tube plate portion 4.
And a tank structure of the heat exchanger in which the second member 1b is covered with the sealing rubber plate 5 on both edges in the width direction. 3. The tank body 1 according to claim 1, wherein the tank body 1 has a first member 1a formed in a C-shaped cross section and a concave groove 11 aligned with a C-shaped opening edge of the first member 1a. A second member 1b which is formed on both edges in the direction, and which constitutes the tube plate portion 4. The second member 1b comprises a heat exchanger in which the concave groove 11 is formed by the sealing rubber plate 5. Tank structure. 4. The tubular tank body 1 according to claim 1, wherein:
The tank structure of the heat exchanger integrally formed.