JP2542550Y2 - Mounting structure of mounting bracket in heat exchanger - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a mounting bracket in a heat exchanger, in which the mounting dimensional accuracy of the mounting bracket after brazing is improved and the mounting of the heat exchanger can be performed easily and quickly. .

[0002]

2. Description of the Related Art For example, a heat exchanger such as a condenser mounted on an automobile is generally mounted by a mounting bracket.
As disclosed in Japanese Patent Publication No. 3 (1994), it is made of the same aluminum material as the radiation fins and tubes, and is assembled together with the above-mentioned constituent members, header pipes, end plates, and the like. They were brought into the furnace and brazed together.

[0003]

However, when the brazing material coated on the laminated radiating fins or tubes is melted during the above-mentioned brazing, they are displaced in the laminating direction by that much, and the brazed end plate is attached. Since the mounting bracket is tilted inward following the displacement, the mounting position of the mounting bracket with respect to the vehicle is shifted, and there is a problem that mounting of the heat exchanger becomes difficult.

[0004] The present invention solves these problems, to prevent the displacement of Mounting the Hare a wake positioned brazing mounting bracket, and improve the mounting dimensions accuracy and facilitate attachment of the heat exchanger Can be done promptly and installed before brazing
Was temporarily fixed in use brackets supplemented obtained so that, and an object thereof is to provide a mounting structure of the mounting bracket in the heat exchanger.

[0005]

For this reason, the mounting structure of the mounting bracket in the heat exchanger of the present invention has a structure in which a plurality of tubes and radiating fins are stacked and arranged between a pair of header pipes. An end plate is provided between the upper and lower ends, and is engaged with an engagement piece engageable with the end plate and the header pipe.
A mounting bracket having a mating joint piece;
Align the bracket with the header pipe and end plate, and
The end plate can be displaced vertically with respect to the mounting bracket.
Disposed in ability, in the mounting structure of the mounting bracket in these heat exchanger so as to brazing, the
The tip of the engagement piece is engaged from one side of the end plate to the back.
One was, and the joining pieces in the before brazing the header pipe
Mounting bracket before brazing , fixed to the body and immovable
In addition to replenishing the temporary fixing, the position of the mounting portion of the mounting bracket due to brazing is prevented from being shifted, and the accuracy of the mounting dimensions is improved.

[0006]

[Action] The tip of the engagement piece is moved from one side surface of the end plate to the back surface thereof.
Engage and arrange to supplement the temporary fixing of the end plate and the mounting bracket.
Fill the header pipe before brazing
To the mounting bracket by brazing
Prevent displacement of the bracket .

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a first embodiment of the present invention; FIG. A plurality of tubes 4 made of aluminum and a radiating fin 5 constituting a capacitor core are stacked and arranged between the header pipes 2 and 3.

Each of the header pipes 2 and 3 is formed in a substantially elliptical tubular shape, and is formed of, for example, an aluminum brazing sheet coated on one or both sides with a brazing material. And the end plates 2b and 3b are formed, and each pair of these is fitted to face each other, and the joint is brazed.

The upper and lower ends of the header pipes 2 and 3 are closed by caps 6 and 7, and the inside thereof is partitioned by a plurality of partition plates 8, and a refrigerant pipe (not shown) connected to the upper part of the header pipe 2. The refrigerant is guided, meandered through the tube 4, and allowed to flow out to a refrigerant conduit (not shown) connected to a lower portion of the header pipe 3.

At the upper and lower ends of the capacitor core, end plates 9 and 10 made of aluminum are disposed, which are formed in a substantially U-shaped cross section.
It is fixed to. Of these, through holes 11 are formed at both ends of the upper end plate 9, and mounting brackets 12, 13 are attached at positions near the through holes 11.

The mounting brackets 12 and 13 are symmetrically formed of, for example, an aluminum brazing sheet coated on both sides with a brazing material.
In the upper part of the main piece 14, there are formed a bolt insertion hole 15 which is a mounting portion to a mounting side of a vehicle or the like, and a cutout groove 16 communicating with the hole 15.

The joining piece 1 is provided on one side of the bracket main piece 14.
7 is provided integrally, the bonding strip 17 as shown in FIGS. 1 and 2, is shaped to be engageable in the circumferential surface of the side peripheral surface and the header pipes 2 and 3 of the cap 6, the furnace in its joint surface Be brazed.

On the other side of the bracket main piece 14, there is provided an engagement piece 18 bent into a substantially S-shaped cross section. The engagement piece 18 is formed so as to be inserted into the through hole 11, and the tip of the engagement piece 18 is bent. a piece 18a engages with the inner opening edge of the through hole 11, and is filtered <br/> earthenware pots with oven.

In addition, in the figure, reference numeral 19 denotes header pipes 2 and 3.
The mounting legs project from the lower end of the vehicle, and can be inserted into mounting holes (not shown) on the vehicle side.

FIG. 6 shows another embodiment of the present invention, and the same reference numerals are used for components corresponding to those of the above-described embodiment. In this embodiment, instead of protruding an engagement piece 18 on one side of the bracket main piece 14 and engaging it with the inner edge of the through hole 11 formed in the end plate 9, the engagement piece 18 It is characterized in that the engagement piece 18 is cut and raised on the side, and this is engaged with the inner surface of the end plate 9 and brazed to simplify the configuration.

Although the mounting brackets 12 and 13 are mounted on one side surface of the end plate 9 in the above-described embodiment, the mounting brackets 12 and 13 may be mounted on the other side surface in the same manner. Can be connected and formed into a substantially U-shape.

The mounting bracket of the present invention constructed as described above is formed, for example, by press-forming an aluminum brazing sheet coated on both sides with a brazing material to form a main bracket 1.
4, the joining piece 17 and the engaging piece 18 are manufactured integrally. In this case, these components may be separately manufactured and connected by appropriate means.

Next, the components of the heat exchanger 1 are assembled.
Temporarily fix these. That is, the pair of tank plates 2a, 3a and the end plates 2b, 3b are fitted to face each other, the partition plate 18 is arranged at a predetermined position thereof, and the upper and lower ends thereof are closed by the caps 6, 7.

Further, both ends of the tube 4 are inserted into notched grooves (not shown) provided in the end plates 2b and 3b, and the radiation fins 5 are interposed between the tubes 4, and these are laminated and arranged. The end plates 9 and 10 are arranged outside the fin 5 at the position, and both ends of the end plates 9 and
b and 3b are inserted into notched grooves (not shown), and the front ends thereof are bent and locked by appropriate means.

Thereafter, a rod-shaped jig (not shown) is housed inside the end plates 9 and 10, and bolts (both not shown) are inserted between projecting pieces projecting from the jig, and this is inserted. The assembled state is maintained by tightening with a nut.

After such temporary fixing, the mounting bracket 1
2 and 13 are assembled over the upper end portions of the header pipes 2 and 3 and both end portions of the end plate 9. That is, the joining piece 17 is engaged with the peripheral surface of the cap 6 and the peripheral surfaces of the header pipes 2 and 3, and the engaging piece 18 is inserted into the through hole 11 from outside the end plate 9, and the tip of the bending pieces 18a and engaging the inner opening edge of the through hole 11, to prevent the hanging out, their temporal fastening
Refill . Therefore, the mounting brackets 12, 1
The close contact between the end plate 9 and the end plate 9 is promoted.
Be attached . After that, the side peripheral surface of the cap 6 or the peripheral surfaces of the header pipes 2 and 3 and the joint piece 17 are temporarily welded in place, and both are temporarily fixed.

In this manner, the mounting bracket 1
One end of each of the pipes 2 and 13 is fixed to the header pipes 2 and 3 so that their positions are immobilized, and the engaging piece 18 at the other end moves in the front-rear direction through the engagement of the bending piece 18a. And the vertical movement of the end plate 9 is allowed.

FIG. 4 shows a temporarily fixed state of the mounting bracket 12 at this time, and the center P of the bolt insertion hole 15 coincides with the mounting center Po on the vehicle side.

Thereafter, the capacitor 1 in the above assembled state is
Into the brazing furnace and braze each part. At the time of this brazing, a part of the brazing material coated on the predetermined members of the tubes 4, the radiating fins 5, and the end plates 9 which are laminated is melted and flows, and accordingly, they are displaced in the laminating direction. that time,
The bent piece 18a is engaged with the opening edge of the through hole 11.
The displacement of the end plate 9 in the front-rear direction is restricted, and the mounting bracket
The close contact between the brackets 12 and 13 and the end plate 9 is promoted,
Is reliably brazed .

FIG. 5 shows the situation at this time.
The radiation fins 5, the end plates 9 and the like are displaced downward from the initial horizontal position, and they are inclined by θ in the stacking direction. Even if the laminated member is displaced in this manner, the joining piece 17 on one side of the mounting bracket 12 is fixed to the header pipes 2 and 3 which are dimensionally stable before and after brazing, and the end plate 9 is fixed. And so on, the mounting bracket 12 does not follow the laminated member and is displaced.
5 is still located at the same position as the mounting center Po on the vehicle side.

Then, the members are brazed in such a state, and the mounting brackets 12 and 13 are brazed over the end portions of the header pipes 2 and 3 and the end plate 9. Therefore, when the capacitor 1 is mounted on the vehicle after this brazing, the center P of the bolt insertion hole 15 coincides with the mounting center Po on the vehicle side as described above, and the mounting dimensional accuracy is extremely high. Easy and fast.

[0027]

[Effects of the Invention] The mounting structure of the mounting bracket in the heat exchanger of the present invention is, as described above , the end of the engaging piece is connected to the end plate.
From one side to the back side, so it is attached to the end plate
Replenish the temporary fixing with the bracket for
Therefore , the brazing can be surely performed . Ma
Also, before brazing, attach the joint piece to the header pipe
Since it is fixed to the moving, the mounting bracket and header pipe
Is integrated and immovable. Bracket for mounting by brazing
It is possible to prevent displacement of the mounting portion of the unit.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a main part of the present invention.

FIG. 3 is an enlarged sectional view taken along the line AA of FIG. 2;

FIG. 4 is an enlarged front view showing a situation before brazing of a mounting bracket.

FIG. 5 is an enlarged front view showing the situation after brazing of the mounting bracket.

FIG. 6 is a sectional view showing a main part of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger 2, 3 Header pipe 4 Tube 5 Radiation fin 9, 10 End plate 12, 13 Mounting bracket 15 Mounting part 18 Engagement piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of tubes and heat radiation fins are stacked and arranged between a pair of header pipes, an end plate is arranged between upper and lower ends of the header pipe, and an engagement engageable with the end plate.
Mounting with piece and joining piece engageable with header pipe
Bracket for the header pipe
An end plate is engaged with the end plate, and the end plate is attached to a mounting bracket.
To be displaceable up and down with respect to
In the mounting structure of the mounting bracket in the heat exchanger, the distal end of the engaging piece is attached to one side of an end plate.
On the other side, and joined before brazing
A mounting structure for a mounting bracket in a heat exchanger, wherein the pieces are integrally and immovably fixed to a header pipe.