JPH078528U - Heat exchanger - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a heat exchanger that does not need to change the specifications of the upper and lower header tanks and shroud even if the water pipe has different front and rear widths. [Structure] Spacer mounting portions 17 having fitting recesses 18 are formed at the shroud mounting positions of the upper and lower header tanks 2 and 3. The spacer mounting space 17 is fitted with a shroud mounting space holding spacer 12 having a fitting convex portion 15. When a heat exchanger with different specifications of the water pipe 4 is required, a spacer 12 is newly installed according to this.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a heat exchanger used for a radiator or the like.

In this specification, the right side of FIG. 2 is referred to as the front, the left side thereof is referred to as the rear, and the left and right are referred to as the front.

[0003]

[Prior art]

 As shown in FIG. 7, the upper and lower header tanks (72) (73) made of synthetic resin, which are vertically spaced apart from each other, are arranged in parallel between the header tanks (72) (73) and both end portions are arranged. The heat exchanger (71), which has a plurality of water pipes (74) each connected to both header tanks (72) and (73) and to which a cooling fan (75) is attached, has been Has been. In this heat exchanger, a female screw member is inserted into the cylindrical protrusion to fix the required location of the shroud (76) of the cooling fan (75) to the upper and lower header tanks (72) (73). The formed shroud fixing part (77) is provided in the upper and lower header tanks (72) (73). The cylindrical protrusion of the shroud fixing part (77) is formed by forming a corresponding part in the mold for the upper and lower header tanks (72) (73), so that the upper and lower header tanks (72) (73) Is formed integrally with the.

[0004]

[Problems to be solved by the device]

 In this type of heat exchanger, it may be necessary to manufacture the heat exchangers with different specifications of the front and rear widths of the water passages in order to satisfy the required performance. For example, based on a heat exchanger (71) with a wide front and rear width of the water pipe (74) as shown in FIG. 7, a heat exchanger (81) with a narrow front and rear width of the water pipe (84) as shown in FIG. When manufacturing, if only the water pipes (74) and (84) are changed and the upper and lower header tanks (72) (73) and the shroud (76) are left as they are, as shown in FIG. 8, the water pipe (84) and the shroud are There is a gap (S) between it and (76). Therefore, conventionally, each time the water pipes (74) (84) have different front and rear widths, the specifications of the upper and lower header tanks (72) (73) and the shroud (76), and accordingly the metal for manufacturing them, are accordingly changed. There was a problem that the type had to be changed.

An object of the present invention is to provide a heat exchanger that does not need to change the specifications of the upper and lower header tanks and the shroud even if the water pipe has different front and rear widths.

[0006]

[Means for Solving the Problems]

 The heat exchanger according to the present invention comprises an upper and lower header tanks which are vertically arranged at intervals, and a plurality of water pipes which are arranged in parallel between the upper and lower header tanks and whose both ends are respectively connected to the upper and lower header tanks. In a heat exchanger in which the required part of the cooling fan shroud is fixed to the upper and lower header tanks, a spacer mounting part that has either one of a fitting protrusion and a fitting recess is provided at the shroud mounting position of the upper and lower header tanks. A spacer for holding the shroud mounting space, which is formed and has the other side, is fitted to the spacer mounting portion.

[0007]

[Action]

 In the heat exchanger according to the present invention, a spacer mounting portion having one of a fitting convex portion and a fitting concave portion is formed at the shroud mounting position of the upper and lower header tanks, and the spacer mounting portion has the other at the spacer mounting portion. Since the spacers for holding the mounting interval are fitted together, the shroud should be designed to fit the heat exchanger with a narrow width in the front and back of the water pipe, and the radiator with the water pipe in the front and back wider than this. When manufacturing the above, use the same specifications for the upper and lower header tanks and shroud, and manufacture a new spacer with a wide front and rear width so that there is almost no gap between the shroud and the water passage.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show an example in which the heat exchanger according to the present invention is used in a radiator for an automobile, in which a radiator (1) has upper and lower header tanks (2) arranged at predetermined intervals in the vertical direction. ) (3) and the upper and lower header tanks (2) and (3) are arranged in parallel in one row and both ends are connected to the upper and lower header tanks (2) and (3), respectively, and made of a plurality of flat aluminum plates. It consists of a water pipe (4) and an aluminum corrugated fin (7) placed between adjacent water pipes.The radiator (1) is fitted with a shroud (6) of a cooling fan (5). There is.

The upper and lower header tanks (2) and (3) are composed of a synthetic resin box-shaped upper and lower header tank bodies (8) and (9), and aluminum upper and lower header plates (10) and (11) that close the openings. Has been formed.

In the radiator (1) according to the present invention, a synthetic resin spacer (12) for holding a mounting interval when the shroud (6) of the cooling fan (5) is mounted is provided with upper and lower header tanks (2) (3). ) Is formed separately. The spacer (12) is a pair of opposing walls (13) and (13) each having a tenon-like fitting convex portion (15) (15) at the tip and a connecting wall that connects them near the base end. It consists of (14). The connecting wall (14) is integrally provided with a nut (16) into which a bolt (21) for fixing the shroud (6) is screwed.

Spacer mounting portions (17) are provided on the rear sides of the upper and lower header tanks (2) and (3). The spacer mounting part (17) consists of a pair of left and right rail-shaped protrusions (19) integrally formed on the upper and lower header tanks (2) and (3), and a dovetail groove extending vertically on each protrusion (19). The fitting recesses (18) and (18). By inserting the fitting protrusions (15) and (15) of the spacer (12) into the fitting recesses (18) and (18) of the mounting part (17), the spacers (12) are attached to both header tanks. It is attached to (2) (3).

The shroud (6) is fixed to the radiator (1) by screwing the bolt (21) into the nut (16) of each spacer (12).

The shapes of the fitting concave portion of the mounting portion (17) and the fitting convex portion of the spacer (12) can be appropriately changed, and are not limited to the dovetail groove and the dovetail tenon. In addition, a stopper for preventing the spacer (12) from coming off may be provided at the lower end of the fitting recess (18), and the bottom surface of the dovetail-shaped fitting recess (18) and the dovetail-shaped fitting projection (15) may be provided. Either or both of the protruding end faces of () may be tapered. Furthermore, a fitting convex portion may be provided on the mounting portion (17) and a fitting concave portion may be provided on the facing wall (13) of the spacer (12).

FIG. 2 is a side view of the radiator (1) to which the shroud (6) is attached. As can be seen from this, the shroud (6) for avoiding interference with the header plates (10) (11) is shown. The recessed portion (6a) of () has a large amount of recessed portion for common use as will be described later, and the space between the bottom wall of the recessed portion (6a) and the front and rear edges of the header plates (10) and (11) is large. Although there is a gap between the shroud (6) and the water pipe (4), there is no gap.

FIG. 3 is a side view of a radiator (41) which is manufactured based on the radiator (1) described above and has a water pipe (44) having a narrow front-rear width. In this figure, the same parts as those in FIG.

In the radiator (41) of FIG. 3, the upper and lower header tanks (2) and (3), the cooling fan (5), and the shroud (6) thereof are shared with the radiator (1) shown in FIG. As shown in FIG. 4, the spacer (52) for mounting the shroud (6) of the cooling fan (5) has the opposing walls (53) and (53) having a narrower front-rear width than the spacer (12) described above. Have

As can be seen from FIG. 3, there is no gap between the shroud (6) and the water pipe (44), and the bottom wall of the recess (6a) of the shroud (6) and the header plate (10) (11). There is no gap between the left and right edges of).

That is, if the shroud (6) is designed so as to fit the radiator (41) having a narrow width in the front and rear of the water pipe (44), the water pipe (4) having a wider width in the front and rear is provided. The radiator (1) can be manufactured only by changing the size of the facing wall (13) of the spacer (12), and the upper and lower header tanks (2) (3), the cooling fan (5) and its shroud (6) can be manufactured. Can be shared.

When the sizes of the header tanks (2) and (3) are different between the upper and lower parts, the specifications of the spacers (12) and (52) need to be changed between the upper and lower parts. 3) The cooling fan (5) and its shroud (6) can be shared in the same manner as above.

In addition, when mounting the spacers (12) and (52) to both header tanks (2) and (3), an example for strengthening the mounting will be shown below.

In the embodiment shown in FIG. 5, the nut (16) into which the shroud fixing bolt (21) is screwed is embedded in the upper and lower header tanks (2) and (3), and the connecting wall of the spacer (12) is connected. A bolt insertion hole (22) is formed in (14). Therefore, by screwing the bolts (21) into the nuts (22) of the upper and lower header tanks (2) (3), the shroud (6) and spacer (12) are fixed to the header tanks (2) (3). .

In the embodiment shown in FIG. 6, a hemispherical engagement protrusion (23) is further provided at the tip of the fitting protrusion (15) of the opposing wall (13) of the spacer (12), and the engagement protrusion (23) is provided. A hemispherical engagement recess (24) is provided at the bottom of each fitting recess (18) of the left and right mounting portions (17) so as to correspond to the protrusion (23). Then, the spacer (12) is fixed to the mounting portion (17) by forcibly fitting the engagement protrusion (23) into the engagement recess (24).

[0024]

[Effect of device]

 According to the heat exchanger of this invention, if the shroud is designed according to the radiator with narrow width in front and back of the water pipe, the radiator with wide water pipe in front and back of the water pipe has a spacer with wide front and rear width. Since it only needs to be newly manufactured, both upper and lower header tanks and shrouds can be shared.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a radiator (heat exchanger) according to the present invention.

FIG. 2 is a side view of the radiator.

FIG. 3 is a side view of a radiator in which a water pipe has a narrow front-rear width.

FIG. 4 is a perspective view of a spacer used in the radiator.

FIG. 5 is a plan view showing an example of a method of fixing a spacer.

FIG. 6 is a vertical cross-sectional view showing another embodiment of a method of fixing a spacer.

FIG. 7 is a side view of a conventional radiator.

FIG. 8 is a side view of a conventional radiator having a water pipe having a narrow front-rear width.

[Explanation of symbols]

 (1) Radiator (heat exchanger) (2) Upper header tank (3) Lower header tank (4) Water pipe (5) Cooling fan (6) Shroud (12) Spacer (15) Fitting protrusion (17) Spacer Mounting part (18) Mating recess

Claims (1)

[Scope of utility model registration request] 1. The upper and lower header tanks (2) and (3) which are vertically spaced apart from each other, and the upper and lower header tanks (2) and (3) which are arranged in parallel between the upper and lower header tanks (2) and (3) respectively. 2)
It has multiple water pipes (4) connected to (3), and the required location of the shroud (6) of the cooling fan (5) is the upper and lower header tanks.
(2) In the heat exchanger (1) fixed to (3), fit the fitting protrusion (15) at the shroud mounting position of the upper and lower header tanks (2) and (3).
And a spacer mounting portion (17) having one of the fitting recesses (18) is formed, and the spacer mounting portion (17) is fitted with the shroud mounting spacing holding spacer (12) having the other. A heat exchanger characterized by the above.