JPH0596788U - Heat exchanger - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to cope with the corner shape of the reinforcing member, reduce the manufacturing cost, and prevent leakage of the heat exchange medium. [Structure] A plurality of tubes and fins are alternately stacked, side plates are disposed outside the stacked upper and lower tubes, and header tanks are connected to both ends of each of the tubes and side plates. A tank is a parallel flow type heat exchanger composed of an end plate and a tank plate, wherein the end portion of the tank plate is located inside the end portion of the end plate in the header tank axial direction, and A partition plate was provided between the side plate and the tube adjacent to the side plate to close the header tank.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a parallel flow type heat exchanger having a header tank that is divided into two in the radial direction, and particularly to a countermeasure structure when there is a constraint in the corner of the installation space in a vehicle.

[0002]

[Prior Art]

 In a parallel flow type heat exchanger, a plurality of tubes and fins are alternately laminated, and header tanks are connected in communication with both ends of these laminated tubes, and generally the front shape is a square shape. In addition, the upper and lower openings of each header tank are closed by blind caps, and partition plates are installed at required locations in each header tank, and heat exchange medium is provided between the inlet joint and outlet joint provided in the header tank. It has a structure that allows it to meander several times to flow.

Further, in order to install a heat exchanger such as a condenser in a vehicle, an installation space is often provided on the reinforcing member, and the corners of the reinforcing member are generally formed obliquely. Is. When installing this quadrangular heat exchanger on the reinforcing member, the four corners of the heat exchanger are at the corners of the reinforcing member, so a small heat exchanger must be used, and therefore the heat exchange capacity is There is a problem that the cooling efficiency decreases due to the decrease in the heat exchanger and the increase in the gap between the heat exchanger and the inner edge of the reinforcing member, and the cooling air taken in from the front escapes from this gap.

Therefore, a circular pipe is used for the header tank, the end of the header tank is formed obliquely in correspondence with the diagonal corner of the reinforcing member, and the diagonal opening is closed by the lid plate. It has been devised that the cooling air is taken in reliably by sufficiently utilizing the installation space on the reinforcing member to prevent the cooling effect from decreasing and the heat exchanger capacity from decreasing (for example, Japanese Utility Model Laid-Open No. 3-46759). , JP-A-4-52471).

[0005]

[Problems to be solved by the device]

 However, according to the prior art described in the above publication, the end portion of the header tank made of a round pipe is diagonally processed so as to correspond to the corner portion of the reinforcing member, and the lid plate that closes the diagonal opening also has a special shape. Since it has to be formed in a simple manner, it is difficult to manufacture and the cost is high. Further, since the opening is oblique, there is a problem that the heat exchange medium easily leaks and the above-mentioned specially shaped lid body increases in the number of parts.

Therefore, an object of the present invention is to provide a heat exchanger that can share a partition plate as a lid and can easily correspond to the corner of the reinforcing member.

[0007]

[Means for Solving the Problems]

 In the present invention, a plurality of tubes and fins are alternately laminated, a side plate is disposed outside the laminated upper and lower tubes, and a header tank is connected to both ends of each of the tubes and side plates. This header tank is a parallel flow type heat exchanger composed of an end plate and a tank plate, and the end portion of the tank plate is located inside the end portion of the end plate in the axial direction of the header tank. Then, a partition plate is provided between the side plate and the tube adjacent to the side plate to close the header tank.

[0008]

[Action]

 Therefore, since the header tank is composed of the end plate and the tank plate which are divided into two in the radial direction, the end of the end plate and the tank plate are shortened by shortening the length of the tank plate located outside. The position with respect to the end can be different, and it can correspond to the diagonal corner of the reinforcing member. However, since the header tank is divided into two in the radial direction, each plate can be easily manufactured by press molding. In addition, since the tank opening is closed by the partition plate between the side plate and the adjacent tube, the tank capacity is reduced compared to the conventional one, and the conventional partition plate that meanders the heat exchange medium is also used as it is. Since it can be done, it is not necessary to process a lid with a special shape as in the past, and the cost can be reduced.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of a heat exchanger 1 of the present embodiment. In this heat exchanger 1, a plurality of flat tubes 2 and wavy fins 3 are alternately laminated, and both ends of the laminated flat tubes 2 are arranged. The header tanks 4 are connected in communication with each other.

The header tank 4 is composed of an end plate 5 and a tank plate 6 which are divided into two in the radial direction, and each opening at the lower end of each header tank 4 is closed by a partition plate 7. The upper end opening is closed by a blind cap 8. An inlet joint 9a is communicatively connected to one header tank 4, an outlet joint 9b is communicatively connected to the other header tank 4, and a partition plate 7 provided at a required position in both header tanks 4 The heat exchange medium is meandered a plurality of times between the inlet joint 9a and the outlet joint 9b. Further, on the upper end side and the lower end side of the laminated flat tubes 2, reinforcing side plates 10 having a U-shaped cross section are connected to the end plates 5 of the header tank 4. In FIG. 1, reference numeral 11 denotes a vehicle reinforcement member.

More specifically, as shown in FIG. 2, the flat tube 2 is inserted into a tube insertion hole 5a provided in the end plate 5, and the side plate 10 has its bent tip at the end plate 5. It is inserted into the plate insertion hole 5b provided in the and is joined by integrally brazing. Further, each partition plate 7 is joined by integral brazing in a state where the fitting projection 7a at the peripheral portion is fitted in the fitting holes 12 provided in the end plate 5 and the tank plate 6.

Further, as shown in FIG. 2, in the header tank 4, the lower end of the end plate 5 and the lower end of the tank plate 6 are formed in a stepped manner so as to correspond to the front shape of the corner of the reinforcing member 11. In other words, since the corners of the reinforcing member 11 are inclined, the lower end of the tank plate 6 located outside is positioned above (lower in the axial direction) the lower end of the inner end plate 5 to follow this. It has a different structure. A partition plate 7 that closes the opening of the header tank 4 is disposed between the side plate 10 and the flat tube 2 adjacent to the side plate 10. Further, as shown in FIG. 2, the bent piece 10a of the lower side plate 10 is formed wide so as to reduce the gap with the lower member 11.

Therefore, in the present embodiment, even if the corner of the installation space is notched, it is possible to perform the installation corresponding to the installation space without deteriorating the capacity of the heat exchanger. Since the cooling air can be taken in efficiently, the inherent performance of the heat exchanger can be exhibited. In addition, since the header tank of the two-part type is used and the opening is closed by the partition plate, it is easy to correspond to the corner of the installation space and the heat exchanger can be closed without leakage. Also, it can be shared with other partition plates, and it is possible to prevent an increase in component manufacturing cost. Furthermore, since the header tank is closed between the side plate and the flat tube, the tank capacity can be reduced. Furthermore, since the header tank of the two-division type is used, it can be easily manufactured by press molding.

Although the lower end of the end plate 5 is horizontal when viewed from the front in the above-described embodiment, as shown in FIG. This is also possible, and in this case as well, since it is press molding, it can be easily handled.

Next, another embodiment will be described. As shown in FIGS. 4 and 5, in the present embodiment, the lower end of the end plate 5 of the header tank 4 is extended downward, and this extension 5A is utilized as a bracket. The extension portion 5A of the end plate 5 is integrally formed when the end plate 5 is press-molded, and the tip portion thereof is bent and attached to the hole portion 11A of the reinforcing member 11 via the rubber bush 13. It is built.

Therefore, the present embodiment has the same effects as those of the previous embodiment, facilitates the attachment of the heat exchanger, does not require a bracket as a separate member, and can reduce the number of parts.

In each of the above-described embodiments, the case where the lower corner of the installation space is restricted has been described as an example, but the present invention is not limited to this, and the same applies to the case of the upper corner. it can.

[0018]

[Effect of the device]

 As described above, according to the present invention, a header tank including an end plate and a tank plate is used, and the end portion of the outer tank plate is positioned axially inward of the inner end plate end portion. Therefore, the diagonal corners of the reinforcing member can be easily accommodated, and the heat exchange capacity and the cooling effect can be prevented from lowering. Moreover, since each plate of the header tank can be easily manufactured by press molding into a shape according to the situation, the manufacturing cost as in the conventional case is not increased. Further, since the opening of the header tank is closed by the partition plate, the partition plate provided in the header tank can be shared as it is, and a lid plate having a special shape as in the conventional case is not required, and the cost can be reduced. Further, since the header tank is closed by the partition plate between the side plate and the tube adjacent thereto, there is an advantage that the capacity in the header tank can be reduced. Furthermore, since the opening of the header tank is not slanted, the joint surface of the partition plate is small, and since there are no sharp edges, there is no risk of leakage of the heat exchange medium.

[Brief description of drawings]

FIG. 1 is a front view of a heat exchanger according to a first embodiment of the present invention.

FIG. 2 is a front view showing a main part of a heat exchanger.

FIG. 3 is a front view of a heat exchanger showing a main part according to the second embodiment of the present invention.

FIG. 4 is a front view of a heat exchanger showing a main part according to the third embodiment of the present invention.

FIG. 5 is an exploded perspective view of a main part of the heat exchanger.

[Explanation of symbols]

 1 Heat exchanger 2 Tube 3 Fin 4 Header tank 5 End plate 6 Tank plate 7 Partition plate 10 Side plate

Claims (1)

[Scope of utility model registration request] 1. A plurality of tubes and fins are alternately stacked, side plates are disposed outside the stacked upper and lower tubes, and header tanks are connected to both ends of each of the tubes and side plates. In the parallel flow type heat exchanger in which the header tank is composed of an end plate and a tank plate, the end portion of the tank plate is located inside the end portion of the end plate in the header tank axial direction, A heat exchanger characterized in that a partition plate is provided between a side plate and a tube adjacent to the side plate to close the header tank.