JP3052725B2 - Automotive radiator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat dissipating device for an automobile in which a shroud and a radiator are assembled.

[0002]

2. Description of the Related Art As a conventional heat dissipating device for automobiles, there is, for example, one shown in FIG. 7 (similar structures are disclosed in Japanese Utility Model Laid-Open Nos. 61-20431, 1-1115840 and 2-31342). Reference).

[0005] First, in FIG.
_r . This automotive heat radiator includes a shroud 1 and a radiator 3, and is attached to a vehicle body in a state where both are assembled. To explain further, the entire shroud 1 has an integral structure, and a motor fan 5 is assembled. The upper part of the shroud 1 is provided with two shroud upper brackets 7 for fastening connection to the radiator 3 at two places. At the lower part of the shroud 1, there are two shroud assembling pins 9 to be fitted to the radiator 3 side.
It is provided at each location.

[0004] The radiator 3 has a radiator upper bracket 1 on its rear side in the vehicle longitudinal direction.
1 are provided in two places. At the upper part of the radiator 3, radiator upper mounting pins 16 are provided at two places on the left and right. A shroud mounting bracket 13 is provided at two places on the lower rear surface of the radiator 3. The shroud mounting bracket 13 is provided with fitting holes 15 for fitting the shroud assembling pins 9 respectively. On the lower surface of the radiator 3, radiator lower mounting pins 17 are protruded at two places.

On the other hand, the first cross member 1 on the vehicle body side
9 is provided with two radiator mounting brackets 21. The radiator mounting bracket 21 is provided with mounting holes 23 into which the radiator lower mounting pins 17 are inserted.

The radiator 3 has a lower mounting pin 17 for the radiator and a mounting hole 23 of a radiator mounting bracket 21.
Is inserted through a not-shown mount insulator or the like. The radiator upper mounting pin 16 is mounted on a mounting stay (not shown) via a mounting insulator (not shown) or the like, and each mounting stay is mounted on a radiator core support upper (not shown).

On the other hand, when the motor fan 5 is mounted on the shroud 1, the shroud mounting pin 9 is fitted into the fitting hole 15 of the shroud mounting bracket 13, and the shroud upper bracket 7 is bolted to the radiator upper bracket 11. 25 fastens and fixes.

Therefore, the shroud 1 can be securely assembled together with the radiator 3. Also, shroud 1
The motor fan 5 can be reliably mounted on the radiator 3 side by utilizing the mounting of (1).

[0009]

However, when the shroud 1 has an integral structure as described above, when the motor fan 5 is removed for maintenance or the like, the entire shroud 1 must be removed. There was such a problem.

That is, in this removal, the bolt 25 is loosened to release the fastening connection of the upper shroud bracket 7 to the upper radiator bracket 11, and the shroud 1 is further lifted upward so that the shroud mounting pin 9 is fitted to the fitting hole of the shroud mounting bracket 13. 15 must be withdrawn. With such a detached structure, a special space for removing the shroud 1 is required around the radiator 3, which is extremely disadvantageous in layout in an engine room where many parts are densely packed.

[0011] In addition, if a sufficient space is not available for removal, the removal may be more troublesome. That is, as shown in FIG. 8, the front side members 27 on the vehicle body side are present on the left and right sides of the radiator 3, and the radiator hose 29 is located above the radiator 3. Therefore, it is necessary to remove the radiator hose 29 from the radiator 3 at the time of removal. In order to prevent the shroud 1 from interfering with the radiator hose 29 at the time of removal, it is conceivable to rotate the shroud 1 as shown by a dashed line in the drawing, but the lower corner portion 31 (hatched portion) of the shroud 1 may be considered.
Cannot be rotated simply because it interferes with the front side member 27.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat radiating device for a vehicle which is advantageous in layout in an engine room and which can be easily removed.

[0013]

According to a first aspect of the present invention, a shroud to which a fan is attached is removably assembled to a radiator, and the shroud is disposed under a radiator hose disposed above the radiator. In the heat radiating device for an automobile positioned with a clearance on a side, the shroud is divided into a main body portion surrounding the fan with a hood and another divided portion, and a joining portion of the main body portion and the divided portion is formed. An assembling state in which a coupling portion for pulling up the main body portion upwardly in the clearance within the clearance and detachably fitting the main body portion is provided, and a shroud formed by the main body portion and the divided portion is detachable from the radiator side. An upper assembling part and a lower assembling part are provided, at least a part of the lower assembling part is formed in the divided part, and the lower assembling part is also provided in the main part. The lower mounting portion is configured to be pulled up to the radiator side in the clearance so as to be detachably fitted therein, and the main body portion is pulled up in the clearance to be opposed to the radiator hose side. When the side is rotated upward, the opposite side does not interfere with the side member.

According to a second aspect of the present invention, in the heat radiating device for a vehicle according to the first aspect, the dividing portion is formed by dividing the shroud into upper and lower portions.

According to a third aspect of the present invention, there is provided the heat radiating device for an automobile according to the first aspect, wherein the dividing portion is formed by dividing a lower corner portion of the shroud.

According to a fourth aspect of the present invention, there is provided the heat radiating device for an automobile according to the second aspect, wherein the connecting portion is formed on one of the main portion and the split portion with a connecting pin projecting vertically and on the other. And a coupling hole into which the coupling pin is fitted.

According to a fifth aspect of the present invention, there is provided the heat radiating device for an automobile according to the fourth aspect, wherein the radiator has a radiator upper bracket for assembling a shroud at an upper part, and a radiator at a mounting hole on a vehicle body side at a lower part. It has a radiator lower mounting pin to be inserted, the upper mounting part is a shroud upper bracket that is fastened and connected to the radiator upper bracket, and the lower mounting part is a shroud lower fitting that fits into the radiator lower mounting pin. Part.

According to a sixth aspect of the present invention, there is provided the heat radiator for an automobile according to the third aspect, wherein the radiator has a shroud mounting bracket provided with a fitting hole for assembling the shroud in a lower portion, and the lower radiator has a lower portion. The assembling portion is a shroud assembling pin that fits into the fitting hole for assembling the shroud, and the coupling portion forms one part of the vertically divided shroud assembling pin into a divided portion and mainly uses the other portion. It is characterized in that it has a configuration to be formed in a part.

[0019]

According to the first aspect of the present invention, the main part including the fan of the shroud and the other divided parts can be detachably connected by the fitting of the connecting part of the joining part. The upper and lower assembly portions of the shroud make it possible to make the shroud composed of the main portion and the split portion detachably attached to the radiator.
Further, only the main part can be removed while the divided part remains on the radiator side. However, the dividing part can also be removed.

According to the second aspect of the invention, in addition to the operation of the first aspect, the shroud can connect and detach the upper main body part to and from the lower divided part.

According to the third aspect of the present invention, in addition to the operation of the first aspect, the main body can be connected to and separated from the divided portion of the corner portion of the shroud.

According to the fourth aspect of the present invention, the main body and the divided portion can be connected and detached by the connecting pin in which the main body and the divided part are vertically projected and the connecting hole in which the connecting pin is fitted.

According to the fifth aspect of the present invention, in addition to the function of the fourth aspect of the present invention, the upper portion of the shroud can be assembled by fastening the upper shroud bracket to the radiator upper bracket. The lower portion of the shroud can be assembled by fitting the lower shroud fitting portion to the lower radiator mounting pin.

According to a sixth aspect of the present invention, in addition to the function of the third aspect of the present invention, one of the vertically divided portions of the shroud assembling pin formed in the divided portion and the other portion formed in the main portion are combined with the shroud mounting bracket. Part of the connection can be made by fitting together in the fitting holes.

[0025]

Embodiments of the present invention will be described below.

The same components as those shown in FIG. 7 are denoted by the same reference numerals, and the description will not be repeated.

FIG. 1 is an exploded perspective view of a heat radiating device for an automobile according to a first embodiment of the present invention.

The shroud 1 is divided into a main part 33 having a motor fan 5 as a fan and a division part 35 other than the main part. In particular, in this embodiment, the dividing portion 35 is formed by dividing the shroud 1 into upper and lower portions. That is, in the joining portion 45, the main portion 33 includes a straight portion 39 passing below the pair of hood portions 37 to which the motor fan 5 is attached, a curved portion 41 along the hood portion 37, and a portion outside the curved portion 41. An abutting portion 43 is formed.

On the other hand, in the joining portion 45, the linear portion 47, the curved portion 49, and the abutment portion 51 are also formed corresponding to the dividing portion 35.

A connecting pin 53 projecting downward is provided at the center of the linear portion 39 of the main body 33 and at each of the left and right abutting portions 43. Further, the dividing portion 35 is provided with coupling holes 55 for fitting the coupling pins 53 at the center of the linear portion 47 and the left and right abutting portions 51, respectively.

Accordingly, the main body 33 and the divided portion 35 are integrated, and the main body 33 and the divided portion 35 are integrated with each other by fitting the coupling pin 53 into the coupling hole 55, thereby forming the shroud 1.

In this embodiment, the upper shroud bracket 7 provided above the main body 33 is
Is mounted on the radiator 3 side detachably.

At the lower edge of the divided portion 35, a fitting bracket 59 having an L-shaped cross section, which is a lower fitting portion of the shroud, is fixed by welding or the like as a lower assembly portion provided below the shroud 1. I have. That is, as shown in FIG. 2, the engagement portion bracket 59 is provided with the engagement hole 61. An insertion port 63 reaching the engagement hole 61 is provided at a distal end 59 a of the fitting bracket 59. The width of the insertion port 63 is formed smaller than the diameter of the radiator lower mounting pin 17 in FIG.
Are engaged with the radiator lower mounting pin 17 with a click.

Next, the assembly of the shroud 1 and the radiator 3 will be described.

The radiator 3 is attached to the first cross member 19 and a radiator core supporter upper (not shown) as in FIG.

On the other hand, the shroud 1 is integrated with a main body 33 to which the motor fan 3 has been attached in advance by a joining portion 45 at a joining portion 45. This connection is the main part 3
This is performed by fitting the respective coupling pins 53 into the respective coupling holes 55 of the divided portion 35.

The shroud 1 integrated in this manner is disposed so that the insertion opening 63 of the fitting portion bracket 59 faces the lower mounting pin 17 of the radiator 3 and is pressed forward to directly engage the lower mounting pin 17. The mating hole 61 is elastically engaged.

The upper shroud bracket 7 is fastened to the upper radiator bracket 11 by bolts 25. Thus, the motor fan 3 is supported by the shroud 1, and the shroud 1 is assembled on the radiator 3 side. That is, the radiator 3 of the motor fan 5
The installation on the side is done without difficulty.

On the other hand, when it becomes necessary to remove the motor fan 5 for maintenance or the like, the following procedure is performed.

First, the bolt 25 is disengaged, and the fastening of the upper shroud bracket 7 to the upper radiator bracket 11 is released.

Next, instead of removing the entire shroud 1, the main body 33 to which the motor fan 5 is attached is
Only lift slightly up. This lifting is performed by the clearance between the radiator hose 29 and the main body 33. When the main body 33 is lifted, each connecting pin 53 is detached from each of the connecting holes 55 of the divided portion 35, and the main body 33 can be removed from the divided portion 35.

Further, the main body 33 is lifted and removed. However, if the main body 33 is lifted vertically upward, it interferes with the radiator hose 29. Therefore, the radiator hose 29 side of the main body 33 is left as it is, and the left side of FIG. Rotate to pull up. Then, when the main body portion 33 is inclined, if the main body portion 33 is pulled up in the inclined direction, the main body portion 33 can be pulled up without difficulty.

By such removal, it is not necessary to remove the radiator hose 29, and the removal operation becomes extremely easy. In addition, there is no need to provide a special removal space as compared with the case where the entire shroud 1 is removed, and the structure is extremely advantageous in terms of space and layout in an engine room where various types of parts are densely packed. Further, when the entire shroud 1 is to be removed, the operator must reach for the lower part in a narrow space, but when removing only the main body 33 as described above, this is not necessary. Also, the removal work becomes extremely easy.

When the main body 33 is attached, the main body 33 is pulled down by the reverse procedure to the above, and
At this point, the shroud upper bracket 7 is fastened to the radiator upper bracket 11 by bolts 25 to complete the installation. Therefore, the motor fan 5 can be reattached very easily.

The procedure of assembling the main part 33 and the dividing part 35 in advance and assembling them on the radiator 3 side and the procedure of assembling the dividing part 35 on the radiator 3 side first and then assembling the main part 33 are as follows. You can take both.

Next, another embodiment will be described. The same components as those in the above-described embodiment are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, a main body 65 having a motor fan 5 is provided.
And a dividing portion 67 formed by dividing a lower corner portion of the shroud 1. Main part 65 and division part 67
Are connected at a joining portion 69. In the joining portion 69, the main portion 65 has a curved portion 71 of a substantially quarter-arc along the outer periphery of the hood portion 37 and an abutting portion 73. The other part 77 of the split of the shroud assembling pin 75 protrudes below the curved part 71. The connecting pin 53 is protruded from the abutting portion 73 similarly to the above embodiment.

The shroud 1 is provided with one shroud assembling pin 75 in addition to the other shroud assembling pin 79 in a pair with the shroud assembling pin 75.

The mating portion 69 of the dividing portion 67 is formed corresponding to the mating portion 69 of the main body portion 65, and has a curved portion 81 and an abutting portion 83. The abutment portion 83 is provided with a coupling hole 55 as in the above embodiment. Further, one side portion 85 of a vertically divided shroud assembling pin 75 is protruded below the curved portion 81, and is combined with the other portion 77 to constitute one shroud assembling pin 75. I have. Therefore, one part 85 and the other part 7 of the shroud assembly pin 75
Reference numeral 7 designates a fitting portion 6 between the main body portion 65 and the split portion 67 by fitting together into a fitting hole 87 on the radiator 3 side described later.
9 is constituted so as to be detachable. Also,
The coupling pin 53 and the coupling hole 55 also constitute a coupling part.

Shroud mounting brackets 89 and 91 are provided at the lower rear portion of the radiator 3 on the rear side in the vehicle longitudinal direction. The fitting hole 87 is provided in one shroud mounting bracket 89. Similarly, a fitting hole 93 is provided in the other shroud mounting bracket 91.

In this embodiment, the shroud assembling pins 75 and 79 constitute a lower assembling portion which allows the shroud 1 to be detachably attached to the radiator 3 side.

At the time of assembling, the main body portion 65 and the dividing portion 67 are joined at the joining portion 69. This connection is in a temporary connection state when the connection pin 53 and the connection hole 55 are fitted in advance.

Next, the one part 85 and the other part 77 of one shroud assembling pin 75 are fitted into the fitting hole 87 of the one shroud mounting bracket 89 of the radiator 3 so as to be fitted. Thereby, the main body 65,
The joining of the joining section 69 of the dividing section 67 is completed. At the same time, the shroud assembling pins 75 and 79 are fitted into the fitting holes 87 and 93 of the shroud mounting brackets 89 and 91, so that the lower part of the shroud 1 can be supported on the radiator 3 side. The upper portion of the shroud 1 is attached by fastening bolts 25 as in the above embodiment.

When the shroud 1 is to be removed, the bolt 25 is removed and the fastening of the upper shroud bracket 7 to the radiator upper bracket 11 is released. When the main body 65 is lifted upward, the coupling pin 53 is separated from the coupling hole 55 of the divided portion 67 and only the other portion 77 of the shroud assembling pin 75 is separated from the fitting hole 87 of the shroud mounting bracket 89. . In this state, the main body 65 is rotated so as to raise the left side of FIG. At this time, since the divided portion 67 does not exist in the lower corner portion of the main body portion 65, it can be rotated without interfering with the front side member. Then, if the main body portion 65 is in an oblique state, it may be pulled out as it is so as not to interfere with the radiator hose 29 as described above. The dividing unit 6
7 can also be easily removed. However, it may be left on the radiator 3 side as it is.

When assembling the main body 65,
It is arranged on the back side of the radiator 3 by the reverse procedure, the coupling pin 53 is fitted into the coupling hole 55, and the other end 77 of the shroud assembling pin 75 is fitted into the fitting hole 87. 79 into the other fitting hole 93 to connect the main body portion 65 and the divided portion 67 and to connect the shroud 1
Of the lower part of the radiator 3 is completed.
Next, the shroud 1 is tightened by tightening the bolt 25.
Is completed on the radiator 3 side.

Therefore, this embodiment can provide the same operation and effect as described above. In this embodiment, the size of the dividing portion 67 is small, and the handling thereof is easy.

FIG. 4 shows a third embodiment.

In this embodiment, as in the second embodiment, the lower corner portion is divided to form a divided portion 97 for the main body portion 95. Dividing unit 97 is different from the second embodiment are provided on the right lower part of the shroud 1 facing the vehicle front F _r. As is clear from the above description, the position of the dividing portion 97 is
It is determined by the relationship with the position of the radiator hose in the upper part. Thus, the radiator hose rather than on the right side of the radiator 3 facing the vehicle front F _r In this example, a structure where on the left. Further, the dividing portion 97 is a joining portion 98 including a part 37a of the hood portion 37. The structure of the connecting portion is as shown in FIG.

In FIG. 5A, the shroud assembling pin 77 is divided vertically including the hood 37 to form a mating portion 98.

However, instead of the structure of FIG.
(B). In FIG. 5B, an engaging structure is provided on the divided surface 99a of the shroud assembling pin 99. In other words, the projection 101a is formed on the division surface 99a on the main body 95 side, and the recess 101b is formed on the division surface 99b side of the division 97. In this case, when the divided surfaces 99a and 99b are aligned, the engagement between the protruding ridge portion 101a and the concave ridge portion 101b causes a shift between the one portion 103 of the shroud assembling pin 99 and the other portion 105 in the up-down direction and the front-back direction. Therefore, the shroud mounting bracket 91 can be easily inserted into the fitting hole 93.

Further, the main part 95 above the dividing part 97 in FIG.
Is assembled as shown in FIG. 6 (a). As shown in FIG. 4 and FIG. 6A, an upper mounting projection 107 is formed on the upper part of the divided portion 97, and
The elastic insertion portion 109 is formed as shown in FIG. The elastic insertion portion 109 is provided with an engagement claw 109a. In addition, the main portion 95 is provided with the convex portion 1 at the mating portion 98.
The insertion hole 111 is provided on the surface where 07 is fitted.
The insertion hole 111 has a lower edge side opened. This is because the main body 95 can be easily inserted from above when the main body 95 is detached from the divided part 97 and then re-assembled, so that the main body 95 can be easily engaged with the elastic insertion part 109 from above.

Then, the elastic insertion portion 109 is inserted into the insertion hole 1.
The elastic claw 109 is engaged with the insertion hole 111 by elastic insertion into the main body 95 at the upper side of the divided portion 97.

Therefore, the elastic insertion portion 109 and the insertion hole 11
Reference numeral 1 denotes a connecting portion in the joining portion 98 in this embodiment.

Further, instead of the structure of FIG.
A screw 113 can be used as shown in FIG. That is, the convex portion 107 of the divided portion 97 is aligned with the main portion 95 and fastened with the screw 133. Therefore, in this embodiment, the same operation and effect as those of the second embodiment can be obtained.

When the connecting portion as shown in FIG. 5B is used, the fitting hole 93 of the shroud mounting bracket 91 is used.
Can be easily inserted. FIG.
In the case where the upper connecting portion as shown in FIG. 3A is employed, the upper portion of the divided portion 97 is elastically engaged with the main body portion 95, and can be more securely connected. Screw 1 as shown in FIG.
When 33 is used, the coupling strength between the main body portion 95 and the divided portion 97 can be further increased.

In each of the embodiments described above, the shroud in which the motor fan is assembled is described. However, the same operation and effect can be obtained with the engine shroud.

[0067]

As is apparent from the above, according to the first aspect of the present invention, the fan can be securely mounted by assembling the entire shroud on the radiator side. Further, when the fan is removed for maintenance or the like, only the main part including the fan can be detached from the divided part, and handling and detachment thereof are extremely easy as compared with the case where the entire shroud is detached. further,
When only the main body is removed, it is not necessary to remove the radiator hose or the like, and the workability is significantly improved from this point as well. Further, the structure is very advantageous in terms of space and layout as compared with the case where the entire shroud is removed.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, the dividing portion is formed by dividing the shroud into upper and lower portions, and only the upper main portion can be removed. Therefore, the main body can be made smaller and the removal operation can be made easier. Further, the support of the divided portion after removing the main body portion on the radiator side can be stably performed. For this reason, when the main body is remounted, it can be easily mounted.

According to the third aspect of the present invention, in addition to the effects of the first aspect of the present invention, the size of the divided portion is reduced, and the handling thereof is extremely easy.

According to the fourth aspect of the present invention, in addition to the effect of the second aspect of the present invention, the main portion and the divided portion can be reliably connected by fitting the connecting pin and the connecting hole.

According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect, the upper part of the shroud can be assembled by fastening and connecting the radiator upper bracket,
The lower portion can be easily mounted by fitting the lower shroud fitting portion to the radiator lower mounting pin.

According to the sixth aspect of the invention, in addition to the effect of the third aspect of the invention, the connecting portion can be formed by using the shroud assembling pin, and the structure is further simplified.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part as viewed from the front of a division part.

FIG. 3 is an exploded perspective view according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a shroud according to a third embodiment of the present invention.

5 is an exploded perspective view of a main part, and FIG. 5A is an enlarged exploded perspective view of a main part of the embodiment of FIG. (B) is an enlarged exploded perspective view of a main part of a modification.

FIG. 6 is a cross-sectional view showing the engagement of the upper part of the division part;
(A) is a sectional view of a main part of the embodiment of FIG. 4, and (b) is a sectional view of a modification.

FIG. 7 is an exploded perspective view according to a conventional example.

FIG. 8 is an operation explanatory diagram for explaining a problem.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 shroud 3 radiator 5 motor fan (fan) 7 upper shroud bracket (upper mounting part) 11 radiator upper bracket 15 fitting hole 17 radiator lower mounting pin (lower mounting part) 19 first cross member (vehicle side) 23 mounting hole (Vehicle side) 25 Bolt 33 Main part 35 Splitting part 45 Joining part 53 Joining pin (joining part) 55 Joining hole (joining part) 59 Fitting part bracket (shroud lower fitting part) (lower assembly part) 65 Main part 67 Splitting part 69 Fitting part 75 Shroud assembling pin (lower assembling part) 77 Other part (joining part) 79 Shroud assembling pin (lower assembling part) 85 One part (joining part) 87 Fitting hole (joining part) 89 Shroud mounting bracket 95 Main part 97 Split part 98 Fitting part 99 Shroud assembling pin (lower assembling part) 103 One part (joining part) 105 other portion (coupling portion) 109 elastic insert portion (coupling portion) 111 insertion hole (coupling portion) 133 bis (coupling portion)

Continued on the front page (56) References JP-A-56-99819 (JP, A) JP-A-5-231794 (JP, A) JP-A-56-122727 (JP, U) JP-A-63-124523 (JP) , U) Hikaru 2-31342 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B60K 11/04

Claims (6)

(57) [Claims] 1. A heat radiator for an automobile, wherein a shroud to which a fan is attached is detachably assembled to a radiator, and wherein the shroud is located with a clearance below a radiator hose disposed above the radiator. The fan is divided into a main part surrounded by a hood and a divided part other than the main part, and the main part is pulled upward in the clearance with respect to the divided part at a joining part of the main part and the divided part. A coupling portion that is detachably fitted to the radiator; and an upper assembly portion and a lower assembly portion that allow a shroud including the main body portion and the split portion to be detachably attached to the radiator side. Forming at least a part of the lower mounting part on the main body part, the lower mounting part is disposed on the clearer side with respect to the radiator side. When the main part is pulled up in the clearance and the opposite side is rotated upward around the radiator hose side, the opposite side does not interfere with the side member. A heat dissipating device for an automobile, characterized in that: 2. The heat dissipating device for a vehicle according to claim 1, wherein the divided portion is formed by dividing the shroud into upper and lower portions. 3. The heat dissipating device for an automobile according to claim 1, wherein the divided portion is formed by dividing a lower corner portion of the shroud. 4. The heat radiating device for a vehicle according to claim 2, wherein the connecting portion includes a connecting pin projecting vertically in one of the main body portion and the split portion, and the connecting pin formed in the other. A heat dissipating device for an automobile, comprising a coupling hole to be fitted. 5. The radiator for an automobile according to claim 4, wherein the radiator has a radiator upper bracket for assembling a shroud at an upper part, and a radiator lower mounting pin inserted into a mounting hole on a vehicle body side at a lower part. The upper assembly part is a shroud upper bracket that is fastened and coupled to the radiator upper bracket, and the lower assembly part is a shroud lower fitting part that is fitted to the radiator lower mounting pin. A heat dissipating device for automobiles. 6. The heat radiating device for a vehicle according to claim 3, wherein the radiator has a shroud mounting bracket provided with a fitting hole for mounting the shroud at a lower portion, and the lower mounting portion includes: A shroud assembling pin to be fitted into the shroud assembling hole, wherein the coupling part forms one part of a vertically divided part of the shroud assembling pin as a divided part and the other part as a main part. A heat dissipating device for a vehicle, comprising: