JP2017036869A - Reinforcement structure of heat exchanger and attachment method of reinforcement member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure which enables a reinforcement member of a heat exchanger to be easily attached thereto, reduces the number of components needed for attachment, and achieves high strength.SOLUTION: Support bodies 7 and cushion bodies 12 are pressed to a fitting part 10 of an attachment part 9 of a tank body 5 from a bottom part 6a side of a reinforcement member 6. In the state, an engaging claw 11 protruding in a width direction of the attachment part 9 of the tank body 5 is engaged with an edge of an engaging hole 8 to cause both side walls 6b of the reinforcement member 6 to hold both sides of the attachment part 9 of the tank body 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reinforcing structure for a heat exchanger such as an automobile radiator and a method for attaching a reinforcing member.

  In the heat exchanger described in Patent Document 1 below, an engagement protrusion is provided on the tank of the heat exchanger body, and the end of the reinforcing member is attached to the tank via a cushioning material. It is described that the reinforcing member can be easily attached by engaging the.

Moreover, what was shown in FIG. 7, FIG. 8 was known as a reinforcement structure of another heat exchanger.
In this case, vertical mounting portions 9 are integrally provided at both ends in the longitudinal direction of the tank body 5 made of a resin material, and fitting portions 10 are provided on the vertical surfaces thereof. And the penetration hole 24 is drilled in the bottom part 6a of the longitudinal direction of the reinforcement member 6, and the cushion body 12a and the cylinder 25 with a washer are penetrated there. Then, the bolt 16 is inserted into the inside of the cylinder 25 with the washer, and the nut 17 is screwed to the tip of the bolt 16 to attach the reinforcing member 6 to the tank body 5.

Japanese Utility Model Publication No. 61-48285

The heat exchanger described in Patent Document 1 has a problem in mechanical strength, although it is easy to attach the reinforcing member. Moreover, the reinforcement structure shown in FIG.7 and FIG.8 has many number of parts, and the attachment becomes troublesome.
SUMMARY OF THE INVENTION An object of the present invention is to provide a device having a high strength, easy mounting, and a small number of parts.

The present invention according to claim 1 includes a core (3) in which fins (1) and tubes (2) are alternately arranged in parallel, and a tube plate (4) into which both ends in the longitudinal direction of the tube (2) are inserted. And an elongated resin tank body (5) whose opening end is fitted to the periphery of the tube plate (4), and a reinforcing member (6) whose ends are connected to both ends in the longitudinal direction of the tank body (5). ), And a heat exchanger reinforcing structure comprising:
The reinforcing member (6) is formed in a groove shape with a bottom (6a) and both side walls (6b), and one end is fixed to both ends in the longitudinal direction of the bottom (6a) so as to be separated from each other between the side walls. A pair of support bodies (7) projecting and square locking holes (8) opened at both longitudinal ends of the side walls (6b),
On the outer surface of the tank body (5) in the longitudinal direction, a mounting portion (9) is integrally formed in a direction perpendicular to the tube plate (4),
The mounting portion (9) is a reinforcing member in a direction perpendicular to the fitting portion (10), with the pair of fitting portions (10) being recessed facing the bottom portion (6a) side of the reinforcing member (6). A pair of locking claws (11) aligned with the locking holes (8) are formed on the both side walls (6b) side of (6) so as to protrude outward in the width direction of the tank body (5), and At least the end of the locking claw (11) is formed in a wedge shape that is inclined toward the bottom (6a),
The outer periphery is aligned with the fitting portion (10) of the attachment portion (9), and the inner periphery has a pair of cushion bodies (12) aligned with the outer periphery of the support (7),
With the cushion body (12) fitted to the outer periphery of each support body (7) of the reinforcing member (6), the cushion body (12) and the cushion body (12) are fitted to the fitting part (9). This is a reinforcing structure of a heat exchanger in which the locking claw (11) is locked to the edge of the locking hole (8) while being press-fitted into (10).

According to a second aspect of the present invention, in the reinforcing structure for a heat exchanger according to the first aspect,
The support (7) has a heat exchanger reinforcing structure in which an end of the support (7) is caulked or welded to the bottom (6a) of the reinforcing member (6).

According to a third aspect of the present invention, there is provided the reinforcing member mounting method using the reinforcing structure for a heat exchanger according to the first or second aspect.
Using a mounting jig (15) having convex portions (13) at both ends in the longitudinal direction and protruding pins (14) on the convex portions (13), a support (7 ) And the mounting jig (15) with the pin (14) of the mounting jig (15) inserted into the support (7) of the reinforcing member (6). Move parallel to the core (3), press the cushion body (12) into the fitting part (10) of the tank body (5), and fix the locking claw (11) of the mounting part (9). (8) the step of locking to the hole edge;
Next, moving the mounting jig (15) in the direction opposite to the press-fitting direction, and removing only the mounting jig (15) from the reinforcing member (6),
It is the attachment method of the reinforcement member of the heat exchanger which has this.

In the heat exchanger reinforcement structure of the present invention, the support 7 and the cushion body 12 are pressed from the bottom 6 a side of the reinforcement member 6 to the fitting portion 10 of the attachment portion 9 of the tank body 5. In this state, locking claws 11 protruding in the width direction of the tank body 5 are locked to the edges of the locking holes 8, and both side walls 6 b of the reinforcing member 6 are attached to both sides of the mounting portion 9 of the tank body 5. It is something to embrace.
Therefore, the attachment state can be maintained firmly. This is because the force in the axial direction of the cushion body 12 is held by the engagement of the locking holes 8 and the locking claws 11 of the side walls 6b.
Moreover, according to this reinforcement structure, the reinforcement member 6 can be easily attached to a heat exchanger.

  As described in claim 2, in the above configuration, when the end of the support body 7 is caulked or welded to the bottom portion 6a of the reinforcing member 6, the structure is simpler and the number of parts is reduced. .

According to a third aspect of the present invention, there is provided a reinforcing member mounting method in which the mounting jig 15 is moved in parallel with the core 3 in a state where the pins 14 of the mounting jig 15 are inserted into the support 7 of the reinforcing member 6, A step of locking the locking claw 11 of the mounting portion 9 to the edge of the locking hole 8 while press-fitting the body 12 into the fitting portion 10 of the tank body 5, and then the mounting jig 15 in the press-fitting direction. Moving in the opposite direction and removing only the mounting jig 15 from the reinforcing member 6.
Therefore, attachment of a reinforcing member becomes easier.

It is a principal part disassembled perspective view of the reinforcement structure of this invention, Comprising: Only the upper end part is shown. The same side view. III-III arrow sectional drawing of FIG. FIG. Installation explanatory drawing of the reinforcing structure. The removal explanatory drawing of the attachment jig | tool 15 after attachment. The exploded perspective view of the conventional reinforcement structure. The principal part sectional drawing.

The heat exchanger reinforcing structure of the present invention is applied to, for example, a radiator for cooling engine coolant of an automobile.
As an example, as shown in FIG. 1, the heat exchanger forms a core 3 by alternately arranging fins 1 and tubes 2 in parallel. Then, both ends of each tube 2 are inserted into a tube insertion hole (not shown) of the tube plate 4. Moreover, the side material 18 is arrange | positioned at the both ends of the width direction of the core 3, and between components is brazed integrally.

Thereafter, as shown in FIG. 5, the outer periphery of the tube plate 4 is fitted to the opening end of the tank body 5 made of synthetic resin via an O-ring 23, and the crimping claw 22 of the tube plate 4 is bent to the flange side of the tank body 5. By doing so, the tank main body 5 and the core 3 are integrated.
The tank body 5 is integrally projected so that the attachment portions 9 have vertical surfaces at both ends in the longitudinal direction. A pair of fitting portions 10 are arranged in parallel in the vertical surface of the attachment portion 9 so as to be spaced apart from each other in the width direction, and a hole 26 is formed in the central portion of the fitting portion 10. Moreover, the frame part 21 is integrally formed in those back sides. The frame portion 21 may not be provided.

  Next, in this example, the reinforcing member 6 is formed in a groove shape by a bottom portion 6a and side walls 6b raised on both sides thereof. And the bending part 20 is bent at the both ends of the longitudinal direction at the tank main body 5 side in the shape of a letter. A vertical U-shaped portion is integrally formed at the end of the bent portion 20. The reinforcing member 6 is manufactured by press molding. At that time, holes for attaching the pair of support bodies 7 are arranged in parallel in the width direction at the end of the bottom 6a. This hole is provided at a position that matches the position of the hole 26 of the mounting portion 9 described above. Square locking holes 8 are formed at both ends of the side wall 6b.

  As shown in FIG. 3, the support 7 is caulked and fixed to the reinforcing member 6. The support 7 has a flange portion 7a protruding from the end of the hollow portion 7b. The flange portion 7a is caulked and fixed to the reinforcing member 6, and the hollow portion 7b is fixed to the side wall 6b of the reinforcing member 6. Fixed in parallel. Note that a stud may be used as the support 7 and fixed to the reinforcing member 6 by welding.

  The center hole of the cushion body 12 is fitted on the support body 7 thus formed. The cushion body 12 is made of a plastic material having rubber elasticity, the inner periphery thereof is aligned with the outer periphery of the support body 7, the outer periphery is stepped on the front end side in the axial direction, and the front end side is the fitting portion 10 of the attachment portion 9. Align with the inner circumference of.

  The attachment portion 9 is integrally provided with locking claws 11 on both sides thereof. As shown in FIG. 3, the latching claw 11 includes a portion in which the width between the pair of latching claws 11 protrudes wider than the width between the side walls 6b of the reinforcing member 6, and a wedge portion 11a having a narrower width. A portion and a portion substantially aligned between the inner walls of the pair of side walls 6b. Furthermore, a retaining portion 11b is projected from the locking claw 11 on the tank body 5 side.

(Reinforcing member mounting direction)
5 and 6 are explanatory views for attaching the reinforcing member 6 to the tank body 5.
The mounting jig 15 has a pair of convex portions 13 (the lower portion is omitted) at both ends in the longitudinal direction, and a pin 14 projects from the end surface of the convex portion 13 on the tank body 5 side. Therefore, the pin 14 of the mounting jig 15 is inserted into the support 7 in a state where the cushion 12 is fitted on the support 7 of the reinforcing member 6. Then, the mounting jig 15 is moved in the direction of the arrow, and the pin 14 and the support 7 are inserted into the hole 26 of the mounting portion 9 and the cushion body 12 is pressed against the fitting portion 10. Accordingly, as shown in FIG. 3, the wedge portion 11 a of the locking claw 11 is guided to the locking hole 8 of the reinforcing member 6, and the locking claw 11 is locked to the edge of the locking hole 8. At this time, the retaining portion 11 b of the locking claw 11 is fixed to the edge of the locking hole 8.
Next, as shown in FIG. 6, the attachment jig 15 is moved away from the reinforcing member 6 to complete the attachment of the reinforcing member.

1 Fin 2 Tube 3 Core 4 Tube Plate 5 Tank Body 6 Reinforcing Member 6a Bottom 6b Side Wall 6c Mounting Hole

DESCRIPTION OF SYMBOLS 7 Support body 7a Flange part 7b Hollow part 8 Locking hole 9 Attaching part 10 Fitting part 11 Locking claw 11a Wedge part 11b Stopping part 12 Cushion body 12a Cushion body

13 Convex part 14 Pin 15 Mounting jig 16 Bolt 17 Nut 18 Side material 20 Bent part

21 Frame portion 22 Caulking claw 23 O-ring 24 Insertion hole 25 Tube with washer 26 Hole

Claims (3)

A core (3) in which fins (1) and tubes (2) are alternately arranged in parallel, a tube plate (4) through which both ends in the longitudinal direction of the tube (2) are inserted, and a peripheral edge of the tube plate (4) Reinforcement of a heat exchanger comprising an elongated resin tank body (5) to which an open end is fitted, and reinforcing members (6) having ends connected to both ends in the longitudinal direction of the tank body (5) In structure
The reinforcing member (6) is formed in a groove shape with a bottom (6a) and both side walls (6b), and one end is fixed to both ends in the longitudinal direction of the bottom (6a) so as to be separated from each other between the side walls. A pair of support bodies (7) projecting and square locking holes (8) opened at both longitudinal ends of the side walls (6b),
On the outer surface of the tank body (5) in the longitudinal direction, a mounting portion (9) is integrally formed in a direction perpendicular to the tube plate (4),
The mounting portion (9) is a reinforcing member in a direction perpendicular to the fitting portion (10), with the pair of fitting portions (10) being recessed facing the bottom portion (6a) side of the reinforcing member (6). A pair of locking claws (11) aligned with the locking holes (8) are formed on the both side walls (6b) side of (6) so as to protrude outward in the width direction of the tank body (5), and At least the end of the locking claw (11) is formed in a wedge shape that is inclined toward the bottom (6a),
The outer periphery is aligned with the fitting portion (10) of the attachment portion (9), and the inner periphery has a pair of cushion bodies (12) aligned with the outer periphery of the support (7),
With the cushion body (12) fitted to the outer periphery of each support body (7) of the reinforcing member (6), the cushion body (12) and the cushion body (12) are fitted to the fitting part (9). (11) A heat exchanger reinforcing structure in which the locking claw (11) is locked to the edge of the locking hole (8) while being press-fitted into the (10). In the reinforcement structure of the heat exchanger according to claim 1,
A heat exchanger reinforcing structure in which an end of the support (7) is caulked or welded to the bottom (6a) of a reinforcing member (6). In the attachment method of the reinforcement member using the reinforcement structure of the heat exchanger of Claim 1 or Claim 2,
Using a mounting jig (15) having convex portions (13) at both ends in the longitudinal direction and protruding pins (14) on the convex portions (13), a support (7 ) And the mounting jig (15) with the pin (14) of the mounting jig (15) inserted into the support (7) of the reinforcing member (6). Move parallel to the core (3), press the cushion body (12) into the fitting part (10) of the tank body (5), and fix the locking claw (11) of the mounting part (9). (8) the step of locking to the hole edge;
Next, moving the mounting jig (15) in the direction opposite to the press-fitting direction, and removing only the mounting jig (15) from the reinforcing member (6),
The mounting method of the reinforcement member of the heat exchanger which has this.

Images