JPH0740862Y2 - Water-cooled intercooler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a water-cooled intercooler used in an automobile equipped with a turbocharger.

[Conventional technology]

Conventionally, this type of water-cooled intercooler is, for example,
The one disclosed in Japanese Laid-Open Patent Publication No. 63-36868 is known.

This will be described with reference to FIGS. 4 and 5. In the figure, reference numeral 1 is a core portion having a substantially quadrangular shape, and comprises a tube 2, fins 3 and a seat plate 4. At both ends of this core part 1,
For example, water tanks 5 and 6 made of cast aluminum are attached so as to communicate with the tubes 3. Here
The water tank 6 is provided with a partition portion 6A, which is divided into an inflow portion and an outflow portion for the cooling liquid, and an inlet pipe 6B and an outlet pipe 6C are provided in each. Air tanks 7 and 8 are attached to both sides of the core portion 1 in a direction orthogonal to the flow direction of the cooling liquid in the core portion 1. Further, shielding members 9 and 10 are attached to the remaining both sides of the core portion 1.

The water tanks 5 and 6 are fixed to the seat plate 4 by, for example, argon welding. Further, the air tanks 7 and 8 are fixed to the seat plate 4 of the core portion 1 and the shielding members 9 and 10 by, for example, argon welding.

Next, the operation of the water-cooled intercooler thus constructed will be described.

As shown in FIG. 4, when the cooling liquid flows from the introduction pipe 6B of the water tank 6 into the inflow portion, it flows into the water tank 5 through the core portion 1 as shown by an arrow, and makes a U-turn in the water tank 5. Then, it again flows down through the core part 1 to the outflow part of the water tank 6,
It is discharged via the outlet pipe 6C. On the other hand, the high-temperature air discharged from the turbocharger flows from the air tank 7 along the outer periphery of the core portion 1 in the direction orthogonal to the core portion 1 as shown by the arrow, as shown in FIG. After being heat-exchanged by, it flows into the air tank 8 on the downstream side.
At this time, since the core portion 1 is surrounded by the seat plate 4, the air tanks 7, 8 and the shielding members 9, 10, the high temperature air flowing in from the air tank 7 does not leak to the outside and the core portion 1 Heat is exchanged at 1 and enters the air tank 8 on the downstream side.

As described above, according to this water-cooled intercooler, the high temperature air discharged from the turbocharger is heat-exchanged with the cooling liquid passing through the inside of the core portion 1 by passing through the core portion 1 to efficiently cool the air. can do.

[Problems to be solved by the device]

In the above water-cooled intercooler, as shown in FIGS. 6 and 7, the water tanks 5 and 6 are fitted inside the seat plate 4 of the core portion 1, and the air tanks 7 and 8 are attached to the core portion 1. The outer side 4B of the seat plate 4 and the end portions 7A, 8A of the shield members 9, 10 are brought into contact with each other, and the shield members 9, 10 are disposed outside the end portions 7A, 8A of the air tanks 7, 8 and the seat plate 4 of the core portion 1. 4B, and between the outer peripheral edge portion 4A of the seat plate 4 of the core portion 1 and the wall surfaces 5A, 6A of the water tanks 5, 6, and the outer peripheral edge portion 4A of the seat plate 4 of the core portion 1 and the air tank 7 Between the end portions 7A, 8A of the core portion 1, the outer peripheral edge portion 4A of the seat plate 4 of the core portion 1 and the end portions 9A, 10A of the shielding members 9, 10 and the front edge portions 9B, 10B. Between, and
The ends 7A, 8A of the air tanks 7, 8 and the ends 9A, 10A of the shielding members 9, 10
The space between and is fixed by welding.

As shown in FIGS. 6 and 7, the seat plate 4 and the water tank are
Joint 11 between 5, 6 and air tank 7, 8, seat plate 4 and water tank
At the joint portion 12 between the shield members 9 and 10, the outer peripheral edge portion 4A of the seat plate 4, the end portions 7A and 8A of the end portions 7A and 8A of the air tanks 7 and 8 and the outer portion of the seat plate 4 are joined. Since the peripheral edge portion 4A and the tip edge portions 9B and 10B of the end portions 9A and 10A of the shielding members 9 and 10 are flush with each other, respectively 3
Even if two members are integrated by welding, it is not possible to sufficiently dissolve each member by welding, and it is difficult to obtain sufficient joint strength and airtightness.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to provide a joint between the seat plate of the core and the air tank and a joint between the core and the shielding member. An object of the present invention is to provide a water-cooled intercooler that can sufficiently secure joint strength and airtightness.

[Means for Solving the Problems]

The water-cooled intercooler according to the present invention includes a core portion including tubes, fins, and a seat plate, water tanks attached to both ends of the core portion, which communicate with the tubes, and a cooling liquid flow direction in the core portion. An air tank attached to both sides of the core portion so as to be orthogonal to each other, and a shielding member for covering the remaining both sides of the core portion, the water tank is fitted inside the seat plate of the core portion, and the air tank is the core portion. Contacting the outside of the seat plate and the end of the shielding member, the shielding member contacts the end of the air tank and the outside of the seat plate of the core part, and the outer peripheral edge of the seat plate of the core part and the water. Between the wall surface of the tank, between the outer peripheral edge of the seat plate of the core and the end of the air tank, between the outer peripheral edge of the seat plate of the core and the end of the shielding member, and the end of the air tank. The water-cooled intercooler is welded between the end of the shield and the shield. At a, the outer peripheral edge of the seat plate of the core portion, but which projects from the end of the end portion and the shielding member of the air tank.

[Action]

In the present invention, the outer peripheral edge portion of the seat plate of the core portion projects beyond the end portion of the air tank and the end portion of the shielding member.
When the seat plate, the core part, and the air tank are integrated by welding, and when the seat plate, the core part, and the shielding member are integrated by welding, the end parts of these joint parts are melted over a wide area. The three can be fixed in three dimensions.

〔Example〕

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

FIG. 1 shows a water-cooled intercooler according to an embodiment of the present invention, and 20 indicates a core portion.

The core portion 20 has a substantially rectangular shape like the conventional core portion, and includes a tube 21, fins 22, and a seat plate 23.

At the joint between the tube 21 and the fin 22 and at the joint between the tube 21 and the seat plate 23, they are fixed by brazing as in the conventional case.

A water tank 25 is fitted in the inner wall surface of the standing wall 24 surrounding the seat plate 23 as in the conventional case.

Further, the air tanks 26 are arranged in the same manner as in the conventional case on both sides of the core portion 20, that is, in the direction orthogonal to the flow direction of the cooling liquid flowing in the tube 21 of the core portion 20.

Further, shield members 27 and 28 are attached to the remaining both sides of the core portion 20.

Next, joining of the seat plate 23, the water tank 25, and the air tank 26, and joining of the seat plate 23, the water tank 25, and the shielding members 27 and 28 will be described.

As shown in FIGS. 1 to 3, the outer peripheral edge portion 24A of the standing wall 24 of the seat plate 23 is the outer peripheral edge portion 26B of the end portion 26A of the air tank 26.
Has a length l that is more protruding than. Standing wall 24 of the seat plate 23
The outer peripheral edge portion 24A has a length l protruding from the outer peripheral edge portions 27B, 28B of the end portions 27A, 28A of the shielding members 27, 28.

First, as shown in FIG. 2, the seat plate 23, the water tank 25, and the air tank 26 are inserted into the standing wall 24 of the seat plate 23, and then the end portion 26A of the air tank 26 is attached to the seat plate 23. Standing wall 24
In this state, for example, by argon welding, the wall surface 25A of the water tank 25 and the outer peripheral edge portion 24A of the standing wall 24 of the seat plate 23 and the outer peripheral edge portion 26B of the end portion 26A of the air tank 26 are indicated by a two-dot chain line As shown in the drawing, while melting, the outer circumference is laid up as indicated by the chain double-dashed line to integrate the three.

Next, the seat plate 23, the water tank 25, and the shielding members 27 and 28 are
As shown in the figure, after fitting the water tank 25 inside the standing wall 24 of the seat plate 23, the end portions 27A, 28A of the shielding members 27, 28 abut the standing wall 24 of the seat plate 23, in this state, For example, by argon welding, the wall surface 25A of the water tank 25, the outer peripheral edge portion 24A of the standing wall 24 of the seat plate 23, and the outer peripheral edge portions 27B, 28B of the end portions 27A, 28A of the shielding members 27, 28.
And are melted as shown by the chain double-dashed line, and at the same time, they are piled up on the outer periphery as shown by the chain double-dashed line to integrate the three parts.

The water-cooled intercooler according to this embodiment thus configured can operate in the same manner as the conventional water-cooled intercooler.

As described above, according to the present embodiment, the outer peripheral edge portion 24A of the standing wall 24A of the seat plate 23 of the core portion 20, the outer peripheral edge portion 24B of the end portion 26A of the air tank 26, and the end portions of the shielding members 27, 28. Since it projects more than the outer peripheral edge portions 27B and 28B of 27A and 28A, the seat plate 23 and the water tank 2
When the 5 and the air tank 26 are joined, and when the seat plate 23, the water tank 25 and the shielding members 27, 28 are joined, the outer peripheral edge portion 24A of the standing wall 24A of the seat plate 23 is the air tank 26. End of
The outer peripheral edge portion 24B of 26A and the outer peripheral edge portions 27B, 28B of the end portions 27A, 28A of the shield members 27, 28 project from the outer peripheral edge portion 24B, and by integrally welding these, it becomes possible to melt over a wide range. Moreover, since the build-up area is enlarged, the three members having sufficient joint strength can be integrated. As a result, airtightness can be secured.

Since the welding of the air tank 26 and the shielding members 27 and 28 is performed by two members, no inconvenience will occur even if the same processing as the conventional method is performed.

Further, in the above embodiment, the water tank 6 is described as being provided with the partition member 6A, but the water tanks 5 and 6 may be respectively provided with an introduction part and a discharge part so that the cooling liquid may flow in one direction. good.

Further, the case where the air tanks 7 and 8 are respectively provided with the inflow portion and the outflow portion has been described, but it is also possible to provide a partition member on one side and make a U-turn on one side.

[Effect of device]

As described above, according to the present invention, the core portion including the tube, the fins and the seat plate, the water tanks attached to both ends of the core portion and communicating with the tubes, and the flow direction of the cooling liquid in the core portion are orthogonal to each other. As described above, the air tank is attached to both sides of the core portion, and the shielding member that covers the remaining both sides of the core portion.The water tank is fitted inside the seat plate of the core portion, and the air tank is the seat of the core portion. The shield member contacts the outside of the plate and the end of the shielding member, the shield member contacts the end of the air tank and the outside of the seat plate of the core, and the outer peripheral edge of the seat plate of the core and the water tank. Between the wall surface, between the outer peripheral edge of the seat plate of the core and the end of the air tank, between the outer peripheral edge of the seat plate of the core and the end of the shielding member, and between the end of the air tank and the shield. In the water-cooled intercooler where the end of the member is fixed by welding, the core Since the outer peripheral edge portion of the seat plate protrudes more than the end portion of the air tank and the end portion of the shielding member, the joint portion between the seat plate, the water tank and the air tank, and the seat plate, the water tank and the shielding member. The joining strength at the joining portion is secured, the three members can be reliably integrated, and sufficient airtightness is secured.

[Brief description of drawings]

FIG. 1 is a sectional view showing a water-cooled intercooler according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view showing a joint between the seat plate, the water tank and the air tank in FIG. FIG. 3 is an enlarged sectional view showing a joint portion between the seat plate, the water tank and the shielding member in FIG. FIG. 4 is a front view showing a conventional water-cooled intercooler. FIG. 5 is an exploded perspective view of a conventional water-cooled intercooler. FIG. 6 is an enlarged sectional view showing a joint between a seat plate, a water tank and an air tank in a conventional water-cooled intercooler. FIG. 7 is an enlarged sectional view showing a joint between a seat plate, a water tank and a shielding member in a conventional water-cooled intercooler. [Explanation of symbols for main parts] 20 …… Core part 21 …… Tube 22 …… Fin 23 …… Seat plate 24 …… Standing wall 23 standing wall 24A …… Outer peripheral edge of standing plate 23 standing wall 24 25: Water tank 25A: Wall surface 26: Air tank 26A: End of air tank 26 26B: Outer peripheral edge of end 26A of air tank 26 27, 28 Shield member 27A, 28A Shield member 27, 28 end portions 27B, 28B ... Outer peripheral edge portions of the end portions 27A, 28A of the shielding members 27, 28 l ...... Outer peripheral edge portion 24A of the standing wall 24 of the seat plate 23 and the air tank 26
Difference (protruding length) from the outer peripheral edge portion 26B of the end portion 26A, the outer peripheral edge portion 24A of the standing wall 24 of the seat plate 23 and the end portions 27A, 28A of the shielding members 27, 28.
The difference with the outer peripheral edge portions 27B and 28B (projection length).

Claims (1)

[Scope of utility model registration request] 1. A core portion comprising a tube, fins and a seat plate, a water tank attached to both ends of the core portion and communicating with each tube, and a core so as to be orthogonal to the flow direction of the cooling liquid in the core portion. Air tanks attached to both sides of the part,
The water tank is fitted inside the seat plate of the core portion, and the air tank is in contact with the outside of the seat plate of the core portion and the end portion of the shield member. The shielding member is in contact with the end portion of the air tank and the outside of the seat plate of the core portion, and between the outer peripheral edge portion of the seat plate of the core portion and the wall surface of the water tank, the outer peripheral edge of the seat plate of the core portion. Section and the end of the air tank, between the outer peripheral edge of the seat plate of the core and the end of the shielding member,
Also, in a water-cooled intercooler in which the end portion of the air tank and the end portion of the shielding member are fixed by welding, the outer peripheral edge portion of the seat plate of the core portion is the end portion of the air tank and the shielding member. A water-cooled intercooler characterized by protruding from the end.