JPH0517376U - Bracket for mounting heat exchanger - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the retrofitting of the mounting bracket, reduce the retrofitting work and the number of parts, and enhance the support strength of the mounting bracket. [Structure] A fixing piece 16 that can be mounted on mounting frames 6 and 7 made of aluminum and having a substantially U-shaped cross-section, which is arranged in the heat exchanger 1.
A mounting bracket 13 made of aluminum is provided. A brazing material is coated on the peripheral surface of either one of the mounting frames 6, 7 or the mounting bracket 13,
A locking piece 17 that can be joined to is attached to the mounting bracket 13. Insertion ports 8 and 9 into which the locking pieces 17 can be inserted are provided at predetermined positions of the mounting frames 6 and 7, and the fixing pieces 16 and the locking pieces 17 are brazed to the mounting frames 6 and 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heat exchanger mounting bracket suitable for mounting a condenser of a vehicle air conditioner, for example.

[0002]

[Prior Art]

 When mounting a condenser of a vehicle air conditioner on a vehicle, a mounting bracket is generally used, and various proposals have been made for this bracket. For example, in Japanese Patent Application No. 3-8205 proposed by the applicant, a steel plate is press-molded to manufacture a mounting bracket, and after the capacitor core is completed, it is mounted on a capacitor core frame through a bolt or the like. ing.

However, this already proposed mounting bracket requires a later mounting bracket to be mounted on the core frame after the completion of the capacitor core, which is time-consuming and requires a bolt or the like, resulting in a large number of parts. There was a problem.

[0004] By the way, assuming that the bracket is not retrofitted with such a bolt, for example, in Japanese Utility Model Laid-Open No. Sho 63-168106, the lowermost refrigerant tube of the condenser is clamped and welded. The mounting bracket is shown with a bayonet.

[0005]

[Problems to be solved by the device]

 However, with this conventional mounting bracket, there is concern about the support strength of the mounting bracket via the refrigerant tube, and there is a risk that the refrigerant tube may be deformed or broken due to the swinging of the condenser accompanying the vehicle running vibration. It was

The present invention solves such a problem, eliminates the retrofitting of the mounting bracket, reduces the retrofitting work and the number of parts, and rationally assembles it, and strengthens the support strength of the mounting bracket. It is an object of the present invention to provide a bracket for mounting a heat exchanger designed to be obtained.

[0007]

[Means for Solving the Problems]

 For this reason, the heat exchanger mounting bracket of the present invention is an aluminum heat exchanger mounting bracket having a fixing piece that can be mounted on an aluminum mounting frame having a substantially U-shaped cross section disposed in the heat exchanger. In, the brazing material is coated on the peripheral surface of either the mounting frame or the mounting bracket, and a locking piece that can be joined to the mounting frame is provided on the mounting bracket, and the locking piece can be inserted at a predetermined position of the mounting frame. An opening is provided and the above-mentioned fixing piece and locking piece are brazed to the mounting frame to eliminate the retrofitting of the mounting bracket, reduce the retrofitting work and the number of parts, and assemble it reasonably. The feature is that the support strength of can be strengthened.

[0008]

【Example】

 Hereinafter, a description will be given of an illustrated embodiment in which the present invention is applied to mounting a condenser of a vehicle air conditioner. In FIGS. 1 to 3, reference numeral 1 is a condenser as a heat exchanger, which is a gutter-shaped tank plate 2a. Elliptic tubular headers 2 and 2 facing each other with end plates 2b in contact with each other, flat refrigerant tubes 3 arranged in parallel between the headers 2 and 2, and disposed between the tubes 3. It has a radiation fin 4, and mounting frames 6 and 7 are arranged at the upper and lower ends of the capacitor core 5.

The mounting frames 6 and 7 are formed by bending an aluminum brazing sheet whose inner and outer surfaces are coated with a brazing material into a substantially U-shaped cross section. Among them, the upper mounting frame 6 has opposing bending pieces 5 a and 5 b. The mounting frame 7 on the lower side is arranged upward, and the bending pieces 5a and 5b facing each other are arranged downward.

The mounting frames 6 and 7 have substantially the same structure. When the mounting frames 6 on the upper side are described, the laterally long insertion openings 8 and 9 are formed at the bent portions of the bent pieces 6a and 6b at the left and right ends thereof. Are formed to face each other. A pair of notches 10 and 11 are formed separately from each other at the upper end edge of the bent piece 6a immediately above the insertion port 8, and a brazing hole 12 is provided at a predetermined position of the bent piece 6b facing the notches 10 and 11. , 12 are provided, and the mounting brackets 13, 13 are brazed to the bent pieces 6a, 6b.

The mounting bracket 13 is formed by bending an aluminum bare material whose surface is not covered with a brazing material, and has a flat plate-shaped mounting piece 15 having a through hole 14 as shown in FIG. The piece 15 is bent at a substantially right angle, and a pair of fixing pieces 16 and 16 and a locking piece 17 are formed on the bent edge.

In this case, when the mounting frames 6 and 7 are bare materials whose surfaces are not covered with a brazing material, an aluminum brazing sheet whose inner and outer surfaces are covered with a brazing material is used as a material for the mounting bracket 13. ..

Of these, the fixing pieces 16 and 16 are formed on both sides of the bending end edge of the mounting piece 15 so as to be formed in a substantially inverted L shape, and the upright portion is joined to the outer surface of the bending piece 6a and the upper side thereof. The bent portions are fitted in the notches 10 and 11, and the edges are bent inward to form the connection pieces 18 and 18. The pieces 18 and 18 are formed on the inner opening edge portions of the brazing holes 12 and 12. Is joined to.

The locking piece 17 is provided between the fixing pieces 16 and 16, and as shown in the drawing, the bending end edge of the mounting piece 15 is bent in a stepwise manner to extend horizontally and is inserted into the insertion opening. 8 and 9, and the extended portion is joined to the inner surface of the mounting frame 6.

In the figure, 19 and 20 are caps attached to the upper and lower ends of the header 2, 21 is a partition plate provided inside the header 2, and 22 and 23 are refrigerant conduits connected to the upper and lower ends of the header 2. ..

4 to 11 show another embodiment of the present invention, in which the same reference numerals are used for the components corresponding to those of the above-described embodiment. Of these, in the embodiment shown in FIGS. 4 and 5, instead of joining the connecting piece 18 provided at the end of the fixing piece 16 to the inner surface of the bending piece 6b to strengthen the rigidity of the mounting frame 6, the fixing piece is fixed. The connecting piece 18 and the bridging piece of 16 are omitted, and only the upright portions that can be joined to the bending piece 6a are provided. Also, the notches 10 and 11 of the bending piece 6a are omitted, and the mounting bracket 13 is intended to have a simple structure. The feature is that the fixed strength of is obtained.

In the embodiment shown in FIGS. 6 and 7, instead of providing the fixing pieces 16 and 16 on the mounting bracket 13, the fixing pieces 16 and 16 are omitted and the locking piece 1 having the brazing hole 12 is formed. 7, the tongue piece 17a is formed at the tip of the locking piece 17, and the center portion of the frame 6 is cut and raised instead of the insertion holes 8 and 9 of the mounting frame 6 to be attached to the cut and raised piece 24. An insertion port 8 into which a locking piece 17 can be inserted is formed between the frame 6 and the bottom of the frame 6.

The bent piece 6 a and the bent piece 6 b facing the cut-and-raised piece 24 have a cutout portion 25 that can engage with the side edge of the locking piece 17 and a cutout portion that can engage with the side edge of the tongue piece 17 a. 26 are provided, and the opening width of each of them is wider in the excised portion 25 than in the excised portion 26. That is, in this embodiment, the structure of the mounting bracket 13 is simplified, and the inner and outer surfaces of the locking piece 17 are brazed to the bottom of the mounting frame 6 and the cut-and-raised pieces 24 to enhance the fixing strength thereof. It is characterized by the point.

The embodiment shown in FIGS. 8 and 9 is substantially the same as the configuration shown in FIGS. 1 to 3, and a brazing hole 27 is formed in the center of the mounting frame 6 to braze the locking piece 17. In addition to increasing strength, a bead-shaped reinforcing portion 28 is provided at the end of the frame 6 to reinforce the portion and prevent its deformation.

The embodiment shown in FIGS. 10 and 11 is applied to the lower mounting frame 7 for convenience of description, and a bracket base 29 on the same plane as the mounting piece 15 is provided on the mounting bracket 13, and the base 29 Side walls 30 and 31 having different heights are formed on both sides, and the base 29 is formed into a substantially U-shaped cross section that can be engaged with the mounting frame 7.

Of these, a part of the high-side side wall 30 is extended upward, and the extended portion is bent at a right angle to form a locking piece 17 parallel to the bracket base 29, and the locking is performed. The engaging hole 32 is formed immediately below the bent portion of the piece 17. On the other hand, an engaging claw 33 is provided on the lower end of the bending piece 7a of the mounting frame 7 so as to project outward, and this is provided so as to be engageable with the engaging hole 32.

That is, in this embodiment, the mounting bracket 13 and the mounting frame 7 are opposed to each other so that the side walls 30 and 31 are engaged with each other, and at that time, the locking piece 17 is inserted into the insertion ports 8 and 9. It is characterized in that the engaging claws 33 are inserted into the engaging holes 32 so as to position them reliably and to increase their joint area to enhance the brazing strength.

[0023]

[Action]

 The mounting bracket 13 configured in this way is an aluminum bare material when the mounting frames 6 and 7 are made of an aluminum brazing sheet whose inner and outer surfaces are covered with a filler, and when the mounting frames 6 and 7 are aluminum bare materials. Is manufactured by press-molding an aluminum brazing sheet whose inner and outer surfaces are coated with a brazing material. Therefore, the weight is lighter than that of the conventional steel plate mounting bracket. The mounting frames 6 and 7 are also manufactured by press-molding the above-mentioned materials, and their molding forms are shown in FIG.

Next, when the mounting bracket 13 thus manufactured is assembled to the capacitor 1, after the assembly of the capacitor core 5 and the header 2 is completed, the locking piece 17 of the mounting bracket 13 is inserted from the outside of the mounting frames 6 and 7. , 9 at the same time, the fixing pieces 16, 16 are pressed against the outer surfaces of the bending pieces 6a, 7a, and the upper ends of the fixing pieces 16, 16 are fitted into the cutouts 10, 11, and the connecting piece of the other end is connected. 18 and 18 are pressed against the opening edge portions of the brazing holes 12 and 12 on the inner surfaces of the bent pieces 6b and 7b.

With this configuration, the mounting bracket 13 is positioned by the fitting of the locking piece 17 and the insertion openings 8 and 9, and the upper ends of the fixing pieces 16 and 16 are fitted to the notches 10 and 11. By fitting them together, the displacement of the bracket 13 is prevented. Therefore, it is possible to omit the conventional temporary fixing of the mounting bracket 13 using spot welding or clips.

In this way, the mounting bracket 13 is assembled, and after the capacitor core 5 and each part are temporarily fixed, this is carried into a brazing furnace, and the mounting bracket 13 is mounted together with the brazing of the capacitor core 5 and the header 2. Brazing to the mounting frames 6 and 7

That is, at the time of the brazing, the fixing pieces 16 and 16 of the mounting bracket 6 are brazed to the outer surface of the bending piece 6a, and the locking pieces 17 are brazed to the inner surfaces of the bottom portions of the mounting frames 6 and 7. The connecting pieces 18, 18 are brazed to the inner surface of the bending piece 6b.

In this case, when the brazing material coated on the inner and outer surfaces of the bending piece 6 b is melted, the molten brazing material is collected in the brazing reservoir hole 12, that is, the brazing filler metal is connected through the brazing reservoir hole 12 to the connecting piece 18. Is supplied to the outer surface of the connecting piece 18, and the connecting pieces 18, 18 are brazed to the bending piece 6b. Therefore, even when the mounting bracket 6 not covered with the brazing material is brazed to the mounting frame 6 covered with the brazing material as in this embodiment, a required amount of the molten brazing solder is supplied through the brazing hole 12 and a predetermined amount of molten brazing material is supplied. The brazing strength of is obtained.

As described above, since the mounting bracket 13 is brazed to the capacitor 1 together with other brazing points, it is not necessary to attach the mounting bracket 13 with bolts or the like as in the conventional case, and the mounting bracket 13 is assembled accordingly. The labor and the number of parts are reduced. Moreover, since the bending pieces 6a, 6b and 7a, 7b are supported by the bridging portion of the fixing piece 16, the rigidity of the corresponding portions of the mounting frames 6, 7 is strengthened, and the mechanical strength thereof is strengthened.

As described above, according to the present invention, since the mounting brackets 13 are brazed to the mounting frames 6 and 7, a stable supporting strength is obtained, and the condenser tubes can be used like those conventionally welded to a refrigerant tube. The refrigerant tube 3 will not be deformed or broken due to the vibration of No. 1 or the like.

[0031]

[Effect of the device]

 As described above, the bracket for mounting the heat exchanger of the present invention has the mounting frame provided on the heat exchanger or the mounting bracket mounted on the frame, coated with a filter material on the peripheral surface of the mounting frame. Since the mounting bracket is provided with a locking piece that can be joined to the mounting bracket, an insertion port into which the locking piece can be inserted is provided at a predetermined position of the mounting frame, and the fixing piece and the locking piece are brazed to the mounting frame. By eliminating the retrofitting of such mounting brackets, it is possible to reduce the retrofitting work and the number of parts, which can be rationally assembled and the supporting strength of the mounting brackets can be strengthened.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view of the main part of the present invention.

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

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

FIG. 5 is a cross-sectional view showing an enlarged main part of a joining state in the other embodiment.

FIG. 6 is an exploded perspective view showing a main part of another embodiment of the present invention.

FIG. 7 is a plan view showing, in an enlarged manner, a main part of a joining state in the another embodiment.

FIG. 8 is an exploded perspective view showing a main part of still another embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a main part of a joining state in the still another embodiment.

FIG. 10 is an exploded perspective view of a main part of still another embodiment of the present invention.

FIG. 11 is an enlarged cross-sectional view showing a main part of a joining state in the yet another embodiment.

[Explanation of symbols]

 1 Heat Exchanger 6,7 Mounting Frame 8,9 Insertion Port 13 Mounting Bracket 16 Fixing Piece 17 Locking Piece

Claims (1)

[Scope of utility model registration request] 1. A bracket for mounting a heat exchanger made of aluminum, comprising a fixing piece mountable on a mounting frame made of aluminum having a substantially U-shaped cross section arranged in the heat exchanger,
Either the mounting frame or the mounting bracket is coated with a brazing material on the peripheral surface, and a locking piece that can be joined to the mounting frame is provided on the mounting bracket. A bracket for mounting a heat exchanger, wherein the fixing piece and the locking piece are brazed to a mounting frame.