JP2001194088A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger wherein a header tank is rationally constituted. SOLUTION: The heat exchanger is provided with a core 2 comprising a tube 210 and a fin 220, and a header tank 3 connected with the end of a tube. The header tank is composed by assembling a semi-cylindrical tank plate 310 and an end plate 320 provided with a hole 320a to be connected with the end of a tube. Joint parts 311, 321 are provided respectively to the tank plate edge and the end plate edge, and they are protruded to the outside of the header tank in extension in the longitudinal direction of the header tank and jointed to each other. The joint parts are positioned close to the core side of the center of the tank diameter in the direction of assembly of the tank plate and the end plate, and the end plate has a swell to the core side, the end of a side plate 5 is brazed to the edge of the tank plate or the edge of the end plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a core made up of a tube through which a medium flows and a fin mounted on the tube, and a header tank to which the end of the tube is connected. The present invention relates to a heat exchanger for performing exchange.

[0002]

2. Description of the Related Art Generally, a heat exchanger such as a condenser or an evaporator in a refrigerating cycle forms a core by alternately stacking a plurality of tubes and a plurality of fins, and connects an end of the tube to a header tank. It is configured. The medium is taken into the inside from one joint pipe provided in the header tank, passes through the tube while performing heat exchange by heat transmitted to the core, and is then discharged to the outside from the other joint pipe provided in the header tank. .

As a header tank of this type of heat exchanger, for example, JP-A-5-302794 and JP-A-10-
No. 132485, Japanese Utility Model Laid-Open No. 2-133581, Japanese Utility Model Application No. 3-56062, Utility Model Registration No. 2570322, etc., and a hole connecting a semi-cylindrical tank plate and an end of a tube. An end plate provided with an end plate is known. Furthermore,
Japanese Patent Application Laid-Open No. H11-142086 also describes a configuration for reinforcing a heat exchanger.

[0004]

By the way, the above-described heat exchanger is easy to manufacture and has the required pressure resistance performance.
It is desirable to have a configuration that can ensure heat exchange efficiency, strength, and the like reliably, and further improvement is required for the header tank.

[0005] The present invention has been made in view of the above situation, and the pressure resistance performance, heat exchange efficiency, strength,
It is another object of the present invention to provide a heat exchanger in which a header tank is rationally configured while taking into consideration easiness of manufacture and the like.

[0006]

Means for Solving the Problems The invention described in the first aspect of the present invention relates to a core including a tube through which a medium flows and a fin mounted on the tube, and a header tank to which an end of the tube is connected. A heat exchanger that performs heat exchange of the medium by heat transmitted to the core,
The header tank has a semi-cylindrical tank plate,
An end plate provided with a hole for connecting an end of the tube, and an edge of the tank plate and an edge of the end plate which are projected outside the header tank and are joined to each other. Parts are provided, and the joint portion is located closer to the core than the center of the diameter of the header tank with respect to the mounting direction of the tank plate and the end plate, and the end plate further bulges toward the core. According to such a configuration, the configuration of the header tank is further streamlined, and the heat exchanger is easily manufactured, and the required pressure resistance is reliably ensured.

According to a second aspect of the present invention, there is provided a core including a tube through which a medium flows, a fin mounted on the tube, and a header tank connected to an end of the tube. In a heat exchanger that performs heat exchange of the medium by transmitting heat, the header tank is obtained by assembling a semi-cylindrical tank plate and an end plate provided with a hole for connecting an end of the tube, An edge portion of the tank plate and an edge portion of the end plate are provided with joining portions that are continuous and joined to each other over the longitudinal direction of the header tank, and the joining portion is formed of the tank plate and the end plate. The end plate is located closer to the core than the center of the diameter of the header tank in the assembling direction, and the end plate expands toward the core. A heat exchanger structure you are,
According to such a configuration, the configuration of the header tank is further streamlined, and the heat exchanger is easily manufactured,
The required pressure resistance performance is reliably ensured.

According to a third aspect of the present invention, in the first or second aspect, the front end of the joining portion is arranged in a direction in which the tank plate and the end plate are assembled.
A heat exchanger configured to protrude toward the core from the top of the end plate, and according to such a configuration,
The gap formed between the header tank and the fin is covered with the joint. Therefore, particularly when air is sent to the core, air leakage caused by the gap between the header tank and the fin is eliminated, and the heat exchange efficiency is improved.

According to a fourth aspect of the present invention, in the heat exchanger according to any one of the first to third aspects, the tank plate is provided with a joint pipe through which the medium flows in or out, and According to such a configuration, the joint pipe can be easily provided in the header tank.

That is, since the joint between the tank plate and the end plate is located closer to the core than the center of the diameter of the header tank with respect to the mounting direction of the tank plate and the end plate, the portion where the joint pipe is provided is set relatively wide. Is possible, and the degree of freedom in design is improved with respect to the diameter of the joint pipe and its mounting position.

For example, the joint pipe can be provided without straddling the end plate even when the joint pipe is provided in the direction perpendicular to the mounting direction of the tank plate and the end plate with respect to the header tank.

[0012] According to a fifth aspect of the present invention, there is provided a core including a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side portion of the core. In the heat exchanger that includes a side plate as a reinforcing member provided in the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank includes a semi-cylindrical tank plate and an end of the tube. An end plate provided with a connecting hole is assembled, an edge of the tank plate protrudes toward the core in a longitudinal direction of the header tank, and an end of the side plate is connected to the tank. A heat exchanger having a configuration brazed to the edge of the plate. According to such a configuration, the configuration of the header tank is further streamlined, and as a result, With exchange efficiency is improved, the strength is improved with respect to vibration and fatigue.

That is, since the gap formed between the header tank and the fins is covered by the edge of the tank plate, air leakage caused by the gap between the header tank and the fins is eliminated particularly when air is sent to the core. The heat exchange efficiency is improved.

[0014] By brazing the end of the side plate to the edge of the tank plate, the side plate is more reliably supported, and the strength of the heat exchanger is improved.

According to a sixth aspect of the present invention, there is provided a core comprising a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side portion of the core. In the heat exchanger that includes a side plate as a reinforcing member provided in the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank includes a semi-cylindrical tank plate and an end of the tube. An end plate provided with a connecting hole is assembled, an edge of the end plate protrudes toward the core over a longitudinal direction of the header tank, and an end of the side plate is connected to the end. A heat exchanger having a configuration brazed to the edge of the plate. According to such a configuration, the configuration of the header tank is further streamlined, and as a result, With exchange efficiency is improved, the strength is improved with respect to vibration and fatigue.

That is, since the gap formed between the header tank and the fin is covered by the edge of the end plate, air leakage caused by the gap between the header tank and the fin is eliminated particularly when air is sent to the core. The heat exchange efficiency is improved.

Further, by brazing the end of the side plate to the edge of the end plate, the support of the side plate is more reliably performed, and the strength of the heat exchanger is improved.

According to a seventh aspect of the present invention, in the fifth or sixth aspect, the side plate has a first wall facing the core and a second wall perpendicular to the first wall.
A heat exchanger having a configuration in which the second wall portion is brazed to an edge of the tank plate or the end plate. According to such a configuration, the side plate with respect to the header tank is The brazing area at the end is sufficiently ensured, and the reliability of brazing and the strength of supporting the side plate are improved.

According to an eighth aspect of the present invention, in any one of the fifth to seventh aspects, the end plate comprises:
This is a heat exchanger configured to bulge toward the core, and according to such a configuration, it is possible to increase the pressure resistance of the header tank.

According to a ninth aspect of the present invention, there is provided a heat exchanger according to any one of the first to eighth aspects, wherein the heat exchanger has a holding means for holding the end plate to the tank plate. According to the configuration, the tank plate and the end plate can be firmly assembled.

According to a tenth aspect of the present invention, in the heat exchanger according to any one of the first to ninth aspects, the thickness of the end plate is smaller than the thickness of the tank plate. According to such a configuration, it is possible to efficiently ensure the pressure resistance performance of the header tank.

That is, since the end plate is reinforced by connecting the ends of the tubes, the end plate can be made thinner than the tank plate. And by reducing the thickness of the end plate,
End plate processing such as providing holes becomes easy,
In addition, the weight of the header tank is reduced.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The heat exchanger 1 of this embodiment is a condenser of a refrigeration cycle for in-vehicle air conditioning mounted on an automobile. As shown in FIG. 1, a plurality of tubes 210 and a plurality of fins 220 through which a medium flows are alternately provided. A core 2 formed by lamination and a pair of header tanks 3 to which ends of the tubes 210 are connected are provided, and heat is transferred to the medium by heat transmitted to the core 2. Note that the header tank 3 is provided with a joint pipe 4 through which the medium flows in or out. Further, a fan for sending air to the core 2 is provided on the outside adjacent to the core 2.

That is, the medium flows into the header tank 3 from one joint pipe 4 and flows through the tube 2 while exchanging heat, and then flows from the other joint pipe 4 to the header tank 3.
Is discharged to the outside.

The upper and lower sides of the core 2 are provided with side plates 5 as reinforcing members. The end of each side plate 5 is supported by the header tank 3.

Further, a support member 6 for positioning and supporting the heat exchanger 1 in an engine room of an automobile is provided at a longitudinal end of the header tank 3.

Then, the tube 210, the fin 22
0, the header tank 3, the joint pipe 4, the side plate 5, and the support member 6 are integrally formed by assembling the respective members constituting these components and subjecting the assembled body to a heat treatment in a furnace. The cladding of the brazing material, the application of flux, and the like are performed in advance at key points of these members.

The tube 210 of this embodiment is a flat tube formed by extruding an aluminum alloy or roll-forming a plate made of an aluminum alloy. Is provided.

As shown in FIGS. 2 to 5, the heat exchanger 3 of the present embodiment has an end plate provided with a semi-cylindrical tank plate 310 and a hole 320a into which the end of the tube 210 is inserted and connected. 320 is assembled.
The plurality of holes 320a are provided at regular intervals over the longitudinal direction of the end plate 320.

The partition plate 3 is provided at a predetermined interval between the tank plate 310 and the end plate 320.
30 are provided. That is, the end and the inside of the header tank 3 are closed and partitioned by the partition plate 330, and the medium is circulated between the pair of header tanks 3 so as to reciprocate a plurality of times.

The end of the header tank 3 may be closed by, for example, attaching a cap in addition to the partition plate 330. The cap is made by press-forming or cold-forging a material made of an aluminum alloy, and its flange is provided by brazing to the outer peripheral surface or the inner peripheral surface of the header tank.

The tank plate 310 and the end plate 320 are formed by extruding an aluminum alloy or pressing a plate made of an aluminum alloy.

At the edge of the tank plate 310 and the edge of the end plate 320, the joining portions 31 to be joined to each other are provided.
1 and 321 are provided. In this example, these joints 311 and 321 protrude outside the header tank 3 and are continuous in the longitudinal direction of the header tank 3.

The joints 311 and 321 are set so as to be located closer to the core 2 than the center of the diameter of the header tank 3 in the mounting direction of the tank plate 310 and the end plate 320. A in FIG. 4 is an imaginary line indicating the center of the diameter.

As shown in FIG. 5, a locking piece 322 and a locking portion 313 to be locked to each other are provided at appropriate portions of the tank plate 310 and the end plate 320, respectively. The end plate 320 is accurately positioned by locking the locking piece 322 and the locking portion 313.

Further, the tank plate 310 is provided with a hole 310a into which the joint pipe 4 is inserted.
An end is inserted into the hole 310a. In addition, the joint pipe 4 is connected to the tank plate 31 with respect to the header tank 3.
0 and the end plate 320 are provided in a direction orthogonal to the mounting direction.

Since the end plate 320 is reinforced by connecting the ends of the tubes 210, the thickness of the end plate 320 is set slightly smaller than the thickness of the tank plate 310.

Further, the end plate 320 is configured to increase the pressure resistance of the header tank 3 by expanding toward the core 2.

Here, the joint 3 of the tank plate 310
11 and the end 321 of the end plate 320 are connected to the end plate 3 with respect to the mounting direction of the tank plate 310 and the end plate 320.
20 is configured to protrude toward the core 2 from the top. According to such a configuration, the gap formed between the header tank 3 and the fins 220 is covered by at least one of the joints 322. Therefore, leakage of the air sent to the core 2 by the fan from the gap is eliminated.

The joining portion 31 of the tank plate 310
1 includes the tank plate 310 and the end plate 32
The end plate 320 is fixed by bending the bent piece 312 in a predetermined direction after positioning the end plate 320 on the tank plate 310.

That is, the bent pieces 312 are holding means for holding the end plate 320 on the tank plate 310.
And the end plate 320 are firmly assembled, and the reliability of brazing is improved.

Incidentally, the holding means of this embodiment is the tank plate 3
10 is provided with a bent piece 312 at the joint 311 or, as shown in FIGS. 6 and 7, by appropriately forming the shape of each joint 311 and 322, the end plate is attached to the tank plate 310. 320 may be press-fitted.

As described above, according to the heat exchanger of the present embodiment, the header tank is formed by assembling a semi-cylindrical tank plate and an end plate provided with a hole for connecting the end of the tube. An edge of the tank plate and an edge of the end plate are provided with joints that protrude to the outside of the header tank and are continuous and joined to each other over the longitudinal direction of the header tank. Since the end plate is located closer to the core than the center of the diameter of the header tank with respect to the mounting direction of the end plate, and further the end plate is bulged toward the core, the header tank can be rationally configured, and the heat exchanger is In addition to being easily manufactured, required pressure resistance performance can be reliably ensured.

Further, according to the heat exchanger of this embodiment, since the tip of the joint projects from the top of the end plate toward the core with respect to the direction in which the tank plate and the end plate are assembled, the header tank and the fin are not connected to each other. The gap formed therebetween can be covered with the joint. Therefore, particularly when air is sent to the core, air leakage caused by a gap between the header tank and the fins can be eliminated, and the heat exchange efficiency can be improved.

According to the heat exchanger of this embodiment, since the holding means for holding the end plate to the tank plate is provided, the tank plate and the end plate can be firmly assembled.

According to the heat exchanger of this embodiment, the thickness of the end plate is smaller than the thickness of the tank plate, so that the pressure resistance of the header tank can be efficiently secured.

That is, since the end plate is reinforced by connecting the ends of the tubes, the end plate can be made thinner than the tank plate. And, by reducing the thickness of the end plate, the end plate can be easily processed such as providing holes, and the weight of the header tank can be reduced.

Further, according to the heat exchanger of this embodiment, since the coupling plate for inflowing or outflowing the medium is provided in the tank plate, the coupling tube can be easily provided in the header tank.

That is, since the joint between the tank plate and the end plate is located closer to the core than the center of the diameter of the header tank with respect to the mounting direction of the tank plate and the end plate, the portion where the joint pipe is provided should be set relatively wide. Thus, the degree of freedom in design can be improved with respect to the diameter of the joint pipe and its mounting position.

For example, even when the joint pipe is provided to the header tank in a direction orthogonal to the direction in which the tank plate and the end plate are assembled, the joint pipe can be provided without straddling the end plate.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on.

As shown in these figures, in the heat exchanger 1 of this embodiment, the end of the side plate 5 is
, That is, brazed to the joint portion 321 of the end plate 320.

The side plate 5 is formed by pressing or extruding, and has a first wall 5 facing the core 2.
10 and a second wall 520 perpendicular to the first wall 510
And a member comprising: The second wall portion 520 is a first wall portion 5
10 are provided at both ends in the width direction.

A second wall 520 is brazed to the edge of the end plate 320.

The end plate 320 is provided with a hole 320b for connecting the side plate 5, and the end of the side plate 5 is provided with a protrusion 511 to be inserted into the hole 320b. The protrusion 511 is provided on the first wall 5
10 is extended and brazed to the hole 320b.

The other components are the same as those of the above-described specific example. Therefore, common members are denoted by the same reference numerals, and description thereof is omitted.

As described above, according to the heat exchanger of the present embodiment, the edge of the end plate protrudes toward the core in the longitudinal direction of the header tank, and the end of the side plate is Since I brazed to the edge,
The configuration of the header tank can be further streamlined, the heat exchange efficiency can be improved, and the strength against vibration and fatigue can be improved.

That is, since the gap formed between the header tank and the fin is covered by the edge of the end plate, air leakage caused by the gap between the header tank and the fin is eliminated particularly when air is sent to the core. And heat exchange efficiency can be improved.

Further, by brazing the end of the side plate to the edge of the tank plate, the side plate can be more reliably supported, and the strength of the heat exchanger can be improved.

According to the heat exchanger of this embodiment, the side plate includes the first wall facing the core, and the second wall perpendicular to the first wall, and the edge of the end plate. Since the second wall portion is brazed, a sufficient brazing area at the end of the side plate with respect to the header tank can be ensured, and the reliability of brazing and the strength of supporting the side plate can be improved. Can be.

Next, a third embodiment of the present invention will be described with reference to FIGS.

As shown in these figures, in the heat exchanger 1 of this embodiment, the end of the side plate 5 is
It is brazed to the edge of. That is, the second wall 520 of the side plate 5 is brazed to the edge of the tank plate 310.

The edge of the tank plate 310 protrudes toward the core 2 along the longitudinal direction of the header tank 3.

In the case of this example, the joint 321 of the end plate 320 is provided by bending the edge of the end plate 320 inside the header tank 3.

The tank plate 310 and the end plate 320 are assembled by fitting the end plate 320 between both edges of the tank plate 310, and the insertion amount of the end plate 320 is regulated by the partition plate 330. Is done. The joining portion 311 of the tank plate 310 is a portion where the joining portion 321 of the end plate 320 comes into contact by such assembling.

The joint pipe 4 is provided at a portion that does not interfere with the joint 311 of the tank plate 310 and the joint 321 of the end plate 320.

The bent piece 312 is attached to the tank plate 31
A cut is made in the edge of the zero.

Since other structures are the same as those of the above-described specific example, common members are denoted by the same reference numerals, and description thereof is omitted.

As described above, the end of the side plate 5
The edge of the tank plate 310 may be brazed.

[0071]

According to the first aspect of the present invention, there is provided a core including a tube through which a medium flows, a fin mounted on the tube, and a header tank to which an end of the tube is connected. In a heat exchanger that performs heat exchange of the medium by heat transmitted to a core, the header tank is obtained by assembling a semi-cylindrical tank plate and an end plate provided with a hole connecting an end of the tube. A joining portion protruding outside the header tank and joined to each other at an edge of the tank plate and an edge of the end plate, and the joining portion is provided in a direction in which the tank plate and the end plate are assembled. Is located closer to the core than the center of the diameter of the header tank, and the end plate further bulges toward the core. With this configuration, the configuration of the header tank can be further streamlined, and the heat exchanger can be easily manufactured and ensure the required pressure resistance performance. can do.

The invention described in the second aspect of the present invention comprises a core including a tube through which a medium flows and a fin mounted on the tube, and a header tank to which an end of the tube is connected. In a heat exchanger that performs heat exchange of the medium by transmitting heat, the header tank is obtained by assembling a semi-cylindrical tank plate and an end plate provided with a hole for connecting an end of the tube, An edge portion of the tank plate and an edge portion of the end plate are provided with joining portions that are continuous and joined to each other over the longitudinal direction of the header tank, and the joining portion is formed of the tank plate and the end plate. The end plate is located closer to the core than the center of the diameter of the header tank in the assembling direction, and the end plate expands toward the core. A heat exchanger structure you are,
According to such a configuration, the configuration of the header tank can be further streamlined, the heat exchanger can be easily manufactured, and the required pressure resistance can be reliably ensured.

According to a third aspect of the present invention, in the first or second aspect, the front end of the joining portion is disposed in a direction in which the tank plate and the end plate are assembled.
A heat exchanger configured to protrude toward the core from the top of the end plate, and according to such a configuration,
The gap formed between the header tank and the fin can be covered with the joint. Therefore, particularly when air is sent to the core, air leakage caused by a gap between the header tank and the fins can be eliminated, and the heat exchange efficiency can be improved.

According to a fourth aspect of the present invention, there is provided a heat exchanger according to any one of the first to third aspects, wherein the tank plate is provided with a joint pipe through which the medium flows or flows out. According to such a configuration, the joint pipe can be easily provided in the header tank.

The invention according to a fifth aspect of the present invention is directed to a core including a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side portion of the core. In the heat exchanger that includes a side plate as a reinforcing member provided in the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank includes a semi-cylindrical tank plate and an end of the tube. An end plate provided with a connecting hole is assembled, an edge of the tank plate protrudes toward the core in a longitudinal direction of the header tank, and an end of the side plate is connected to the tank. The heat exchanger is brazed to the edge of the plate. With such a structure, the structure of the header tank can be further streamlined, and Result, it is possible to improve the heat exchange efficiency, it is possible to improve the strength against vibrations and fatigue.

According to a sixth aspect of the present invention, there is provided a core comprising a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side portion of the core. In the heat exchanger that includes a side plate as a reinforcing member provided in the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank includes a semi-cylindrical tank plate and an end of the tube. An end plate provided with a connecting hole is assembled, an edge of the end plate protrudes toward the core over a longitudinal direction of the header tank, and an end of the side plate is connected to the end. The heat exchanger is brazed to the edge of the plate. With such a structure, the structure of the header tank can be further streamlined, and Result, it is possible to improve the heat exchange efficiency, it is possible to improve the strength against vibrations and fatigue.

According to a seventh aspect of the present invention, in the fifth or sixth aspect, the side plate includes a first wall facing the core and a second wall perpendicular to the first wall.
A heat exchanger having a configuration in which the second wall portion is brazed to an edge of the tank plate or the end plate. According to such a configuration, the side plate with respect to the header tank is A sufficient brazing area at the end can be ensured, and the reliability of brazing and the supporting strength of the side plate can be improved.

According to an eighth aspect of the present invention, in any one of the fifth to seventh aspects, the end plate comprises:
The heat exchanger has a configuration bulging toward the core, and according to such a configuration, the pressure resistance of the header tank can be increased.

According to a ninth aspect of the present invention, there is provided a heat exchanger according to any one of the first to eighth aspects, wherein the heat exchanger has a holding means for holding the end plate to the tank plate. According to the configuration, the tank plate and the end plate can be firmly assembled.

The tenth aspect of the present invention is the heat exchanger according to any one of the first to ninth aspects, wherein the thickness of the end plate is smaller than the thickness of the tank plate. According to such a configuration, the pressure resistance performance of the header tank can be efficiently ensured.

[Brief description of the drawings]

FIG. 1 is a front view showing a heat exchanger according to a specific example of the present invention.

FIG. 2 is a perspective view showing a header tank according to a specific example of the present invention.

FIG. 3 is an exploded perspective view showing a header tank according to a specific example of the present invention.

FIG. 4 is a sectional view showing a tank plate and an end plate according to a specific example of the present invention.

FIG. 5 is a perspective view showing a main part of a tank plate and an end plate according to a specific example of the present invention.

FIG. 6 is a cross-sectional view showing a tank plate and an end plate according to a specific example of the present invention.

FIG. 7 is a sectional view showing a tank plate and an end plate according to a specific example of the present invention.

FIG. 8 is a perspective view showing a main part of a heat exchanger according to a specific example of the present invention.

FIG. 9 is an exploded perspective view showing a main part of a heat exchanger according to a specific example of the present invention.

FIG. 10 is a perspective view showing a main part of a heat exchanger according to a specific example of the present invention.

FIG. 11 is an exploded perspective view showing a main part of a heat exchanger according to a specific example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Core 3 Header tank 4 Joint pipe 5 Side plate 6 Support member 210 Tube 220 Fin 310 Tank plate 310a Hole 311 Joint 312 Bent piece 313 Locking part 320 End plate 320a Hole 320b Hole 321 Joint 322 Locking piece 330 Partition plate 510 First wall 511 Projection 520 Second wall A Virtual line

Claims (10)

[Claims] 1. A core comprising a tube through which a medium flows and a fin mounted on the tube, and a header tank to which an end of the tube is connected, wherein heat transmitted to the core exchanges heat of the medium. In the heat exchanger to be performed, the header tank has a semi-cylindrical tank plate,
An end plate provided with a hole for connecting an end of the tube; and an edge of the tank plate and an edge of the end plate, which are projected to the outside of the header tank and joined to each other. The joint portion is located closer to the core than the center of the diameter of the header tank with respect to the assembling direction of the tank plate and the end plate, and the end plate swells toward the core. A heat exchanger. 2. A core comprising a tube through which a medium flows and a fin attached to the tube, and a header tank to which an end of the tube is connected, wherein heat transmitted to the core exchanges heat of the medium. In the heat exchanger to be performed, the header tank has a semi-cylindrical tank plate,
An end plate provided with a hole for connecting an end of the tube is assembled. An edge of the tank plate and an edge of the end plate are continuous with each other in a longitudinal direction of the header tank and are mutually connected. A joint portion to be joined is provided, wherein the joint portion is located closer to the core than a center of a diameter of the header tank with respect to an assembling direction of the tank plate and the end plate; A heat exchanger characterized by bulging into a heat exchanger. 3. A joint according to claim 1, wherein a front end of the joint projects from the top of the end plate toward the core with respect to a mounting direction of the tank plate and the end plate. 2. The heat exchanger according to 2. 4. The heat exchanger according to claim 1, wherein the tank plate is provided with a joint pipe through which the medium flows or flows out. 5. A core comprising a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side plate serving as a reinforcing member provided on a side of the core. In the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank has a semi-cylindrical tank plate,
An end plate provided with a hole for connecting an end of the tube is assembled. An edge of the tank plate projects toward the core over a longitudinal direction of the header tank, and an edge of the side plate is provided. A heat exchanger wherein an end is brazed to an edge of the tank plate. 6. A core comprising a tube through which a medium flows and a fin mounted on the tube, a header tank to which an end of the tube is connected, and a side plate as a reinforcing member provided on a side of the core. In the heat exchanger that performs heat exchange of the medium by heat transmitted to the core, the header tank has a semi-cylindrical tank plate,
An end plate provided with a hole for connecting an end of the tube is assembled. An edge of the end plate protrudes toward the core in a longitudinal direction of the header tank, and an edge of the side plate is provided. A heat exchanger wherein an end is brazed to an edge of the end plate. 7. The side plate includes a first wall facing the core, and a second wall perpendicular to the first wall. The side plate is provided at an edge of the tank plate or the end plate. 7. The heat exchanger according to claim 5, wherein the second wall is brazed. 8. The heat exchanger according to claim 5, wherein the end plate bulges toward the core. 9. The heat exchanger according to claim 1, further comprising holding means for holding the end plate on the tank plate. 10. The heat exchanger according to claim 1, wherein the thickness of the end plate is smaller than the thickness of the tank plate.