JPH0741280U - Heat exchanger - Google Patents

Abstract

(57) [Abstract] [Purpose] A fixing member for fixing a heat medium supply / discharge pipe can be easily attached to a heat exchanger, and the number of constituent members and cost can be reduced. [Structure] Side plates 5 are arranged outside both ends of a plurality of heat exchange tubes 3 connected to a header pipe 2. A mounting piece 12 of a fixing member 10 for fixing a heat medium discharge pipe 7 connected to the header pipe 2 is fitted into the cutout portion 8 provided in the side plate 5 and fixed by brazing. This makes it possible to easily attach the fixing member 10, reduce the number of constituent members, and reduce the cost.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heat exchanger, and more particularly to an improvement of a heat exchanger used as, for example, a condenser or an evaporator.

[0002]

[Prior art]

 As a conventional heat exchanger of this type, a plurality of parallel heat exchange tubes are connected between a pair of header pipes, fins are arranged between adjacent heat exchange tubes, and fins are provided outside the heat exchange tubes at both ends. There is known a so-called multi-flow type heat exchanger in which a protective frame member (side plate) is arranged via a heat exchanger. The heat exchanger configured as described above exchanges heat of the air flowing between the fins with the heat medium supplied / exhausted from the heat medium supply / exhaust pipe for supplying or discharging the heat medium connected to the header pipe. Is.

In addition, a heat exchanger of this type is packaged in a vacuum heating furnace or the like in a state in which a header pipe, a heat exchange pipe, fins and side plates each formed of an aluminum member are held by a restraining jig. It is formed by attaching.

By the way, in order to arrange the heat exchanger in the limited space of the automobile body, the heat medium supply / discharge pipes connected to the header pipe are connected to the heat medium supply side or discharge side pipe connection portion. Need to extend and connect. Therefore, conventionally, as shown in FIG. 5, the heat medium supply / exhaust pipe 40 connected to the header pipe 2 is fixed to the side plate 5a by the gripping portion 21 provided on the fixing member 20 fixed to the side plate 5a by welding W. is doing. 5 and 6, reference numeral 3 is a heat exchange tube, 4 is a fin interposed between the heat exchange tubes 3, and 30 is a restraint tool used when assembling the heat exchanger.

[0005]

However, in the conventional structure, since the fixing member 20 is welded to the side plate 5a, temporary fixing by welding is performed in another process before brazing the constituent members of the heat exchanger. It is necessary and, as shown in FIG. 6, it is necessary to provide an extra rib portion 5b for fixing the fixing member 20 to the side plate 5a. In order to provide this rib portion 5b, the side plate 5a is required. Must be formed in an angled shape, and there is a problem in that the processing is troublesome and the cost increases when using such an angled side plate 5a as a brazing material coated with a brazing material layer. There is also a problem that a jig for positioning the fixing member 20 is required. Furthermore, when iron or the like different from aluminum is used for the fixing member 20, there is a problem that electrolytic corrosion occurs due to a potential difference between different metals.

The present invention has been made in view of the above circumstances, and a fixing member for fixing the heat medium supply / discharge pipe can be easily attached to the heat exchanger, and the number of constituent members can be reduced and the cost can be reduced. The purpose of the present invention is to provide a heat exchanger that can be realized.

[0007]

[Means for Solving the Problems]

 To achieve the above object, a heat exchanger according to the present invention comprises a header pipe connecting a plurality of heat exchange pipes, a protective frame member disposed outside the heat exchange pipes at both ends and fixed to the header pipe. A heat exchanger comprising a heat medium supply / discharge pipe for supplying or discharging a heat medium connected to the header pipe, and a fixing member for fixing the heat medium supply / discharge pipe, wherein a cutout portion is provided in the protective frame member. Is provided, and the mounting piece provided on the fixing member is fitted and fixed in the cutout portion.

The heat exchanger according to the present invention includes a header pipe connecting a plurality of heat exchange tubes, fins interposed between the heat exchange tubes, and the headers disposed outside the heat exchange tubes at both ends. Heat exchange provided with a protection frame member fixed to the pipe, a heat medium supply / discharge pipe for supplying or discharging heat medium connected to the header pipe, and a fixing member fixing the heat medium supply / discharge pipe. In the container, the protective frame member is provided with a notch, the mounting piece provided on the fixing member is fitted into the notch, and the fixing member, the protective frame member and the fin are integrally brazed. It is characterized by that.

In this invention, the means for fixing the protective frame member and the fixing member may be arbitrary, but preferably by brazing. In this case, at least one of the protective frame member and the fixing member can be formed by a brazing member coated with a brazing material layer.

Further, by forming at least one of the fixing member, the protective frame member, and the member to which the fins are joined by a brazing member coated with a brazing material layer, these members are integrated. It can be brazed.

[0011]

[Action]

 According to the heat exchanger of the present invention configured as described above, the attachment piece of the fixing member can be fitted and fixed in the notch provided in the protective frame member. Therefore, the protection frame member can be formed in a plate shape, and the fixing member can be easily positioned.

Further, the mounting piece provided on the fixing member is fitted into the notch provided on the protection frame member, and the fixing member, the protection frame member and the fins are integrally brazed to weld the fixing frame member. It can be fixed at the same time as the constituent members of the heat exchanger without temporarily fixing it with the like.

[0013]

【Example】

 An embodiment of the present invention will be described below in detail with reference to the drawings. Here, the same parts as in the conventional case will be described with the same reference numerals.

FIG. 1 is a perspective view of the heat exchanger of the present invention, FIG. 2 is a front view of the heat exchanger, and FIG. 3 is a sectional view taken along the line AA of FIG.

In the heat exchanger 1 of the present invention, a plurality of flat tube-shaped heat exchange tubes 3 and corrugated fins 4 are alternately arranged between a pair of left and right header pipes 2, and both ends thereof are connected. The side plate 5, which is a protective frame member, is arranged at each of the upper and lower ends to form a main part.

A supply pipe 6 for a heat medium, for example, a cooling medium is connected to an upper part of one header pipe 2 (left side in the drawing), and a refrigerant discharge pipe is connected to a lower part of the other header pipe 2 (right side in the drawing). 7 is connected, and the refrigerant discharge pipe 7 extends upward along the header pipe 2 and its front end side is slightly bent inward toward the heat exchanger side and is fixedly held by a fixing member 10 fixed to the side plate 5. Has been done.

In this case, the side plate 5 is formed of a plate-shaped member made of an aluminum alloy having a brazing material layer coated thereon, and a U-shape for mounting the fixing member 10 at an appropriate position on one side thereof. The notch 8 is formed (see FIG. 4). Further, as shown in FIG. 4, the fixing member 10 has a mounting piece 12 fitted into the cutout portion 8 of the side plate 5 at one end of the plate-shaped base portion 11, and the other end side of the plate-shaped base portion 11. A gripping piece 14 having an arc-shaped cross section for holding the refrigerant discharge pipe 7 is provided at the tip of the arm portion 13 projecting from the mounting piece 12 to the opposite side. The fixing member 10 is formed, for example, by pressing an aluminum extruded profile or an aluminum plate.

In the heat exchanger 1 configured as described above, the heat exchange pipe 3 is inserted and connected to the insertion hole (not shown) provided in the header pipe 2. The header pipe 2, the heat exchange pipe 3 and the fins 4 are each formed of an aluminum alloy member, and at least the fins 4 are formed of a brazing sheet (member) coated with a brazing material layer.

To assemble the heat exchanger 1 configured as described above, the heat exchange tubes 3 and the fins 4 are alternately arranged and connected between the header pipes 2 and 2, and the heat exchange tubes 3 at the upper and lower ends are connected. After arranging the side plate 5 on the outer side (specifically, on the outer side of the fins 4 at the upper and lower ends), the mounting piece 12 of the fixing member 10 is fitted into the cutout portion 8 provided on the side plate 5, and It can be formed by collectively brazing R in a vacuum heating furnace or the like with the outside of the plate 5 held by the restraint jig 30.

Therefore, unlike the conventional case, it is not necessary to temporarily fix the fixing member to the side plate by welding beforehand, and the fixing member 10 can be fixed at the same time as the heat exchanger 1 is assembled. Further, since the side plate 5 can be formed by a plate-shaped member, the number of constituent members can be reduced, and moreover, the mounting piece 12 of the fixing member 10 can be fitted into the cutout portion 8 provided in the side plate 5. Since it can be inserted and fixed, the side plate 5 and the attachment piece 12 of the fixing member 10 can be arranged on the same surface. Therefore, the protruding portion from the heat exchanger can be reduced, and the restraining jig 30 can be easily set when the heat exchanger 1 is assembled. Further, since the fixing member 10 is made of an aluminum alloy member, it is possible to prevent the life of the heat exchanger from being shortened due to electrolytic corrosion.

In the above embodiment, the case where the side plate 5 and the fin 4 are formed by the brazing member has been described, but at least one of the joining portions of these members may be formed by the brazing member. Further, in the above embodiment, the case where the refrigerant discharge pipe 7 is fixed by the fixing member 10 has been described, but the refrigerant supply pipe 6 may be fixed by the fixing member.

[0022]

[Effect of device]

 As described above, according to the heat exchanger of the present invention, since it is configured as described above, the following effects can be obtained.

1) According to the heat exchanger of claim 1, since the fixing member is fitted and fixed to the notch provided in the protective frame member, the protective frame member can be formed into a plate shape. The fixing member can be easily positioned, the number of constituent members can be reduced and the cost can be reduced, and the heat exchanger can be easily assembled.

2) According to the heat exchanger of claim 2, the attachment piece provided on the fixing member is fitted into the notch provided on the protection frame member, and the fixing member, the protection frame member, and the fin are attached. Since it is brazed as a whole, it is possible to improve production efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view showing a heat exchanger of the present invention.

FIG. 2 is a front view of a heat exchanger.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing a protective frame member and a fixing member according to the present invention.

FIG. 5 is a front view showing a mounted state of a heat medium supply / discharge pipe of a conventional heat exchanger.

6 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 2 Header pipe 3 Heat exchange pipe 4 Fins 5 Side plate (protective frame member) 7 Refrigerant discharge pipe 8 Notch portion 10 Fixing member 12 Mounting piece R Brazing portion

Claims (2)

[Scope of utility model registration request] 1. A header pipe connecting a plurality of heat exchange pipes, a protective frame member arranged outside the heat exchange pipes at both ends and fixed to the header pipe, and a heat medium supply connected to the header pipe. Alternatively, in a heat exchanger comprising a heat medium supply / discharge pipe for discharge and a fixing member for fixing the heat medium supply / discharge pipe, a cutout portion is provided in the protective frame member, and the cutout portion is provided with A heat exchanger characterized in that a mounting piece provided is fitted and fixed firmly. 2. A header pipe for connecting a plurality of heat exchange pipes, fins interposed between the heat exchange pipes, and a protective frame member arranged outside the heat exchange pipes at both ends and fixed to the header pipe. A heat medium supply / discharge pipe for supplying or discharging a heat medium connected to the header pipe, and a fixing member for fixing the heat medium supply / discharge pipe, wherein the protective frame member has a notch. A heat exchanger characterized in that a portion is provided, a mounting piece provided on the fixing member is fitted into the cutout portion, and the fixing member, the protective frame member and the fin are integrally brazed.