JPH08132894A - Vehicle engine cooling device - Google Patents

Abstract

PURPOSE: To reduce, parts assembling man-hours so as to improve productivity and make almost the whole quantity of travel air pass through a radiator. CONSTITUTION: The protrusion 303 of a radiator 3 is inserted through a hole 607 provided in a fitting plate 602, and an air duct 6 is fixedly supported making use of the own weight of the radiator 3. The assembly is thereby simplified to reduce assembling manhours, and as a result, productivity can be improved. A clearance between a bumber 1 and the radiator 3 is closed by a bottom plate 601, and side plates 603, 604 are provided on both sides of the bottom plate 601 to form the air duct 6. Almost the whole quantity of travel air flowing in from the air intake 2 of the bumper 1 can thereby contribute to cooling the radiator 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling system for a vehicle engine which facilitates assembly and facilitates radiator design planning.

[0002]

2. Description of the Related Art In order to improve the heat exchange efficiency of a radiator mounted on a vehicle, it is necessary to increase the amount of air passing through the radiator. As a concrete conventional example thereof, there is one disclosed in Japanese Utility Model Publication No. 60-10195. That is, by bending both sides of the bottom plate in front of the radiator and arranging an air duct panel body having a U-shaped front shape, the air duct panel body receives the flow of wind (hereinafter referred to as traveling wind) caused by the traveling of the vehicle. I am trying to lead to the radiator. The air duct panel body is provided with brackets on the side walls of the bottom plate, both sides of which are bent, and the brackets are attached to the chassis of the vehicle body through the brackets.

In Japanese Utility Model Publication No. 62-27480, an adjusting plate similar to the sectional shape of the bumper can be moved to the bumper via bolts so as to adjust the opening area of the air intake port formed in the bumper. It is disclosed that the radiator and the engine are not overcooled by adjusting the amount of air flowing through the air intake port while the vehicle is traveling.

[0004]

Since the air duct panel body and the adjusting plate of the above-mentioned conventional example are attached to the chassis and the bumper through the bolts, the air duct panel body and the adjusting plate can be attached. A large number of man-hours are required, resulting in a high cost and a problem in productivity.

Further, in the one disclosed in Japanese Utility Model Publication No. 60-10195, since the distance between the bumper and the radiator is large, the wind flow caused by the running of the vehicle unless there is an obstacle in front of the radiator. Therefore, there is no problem because a substantially uniform air amount passes through the entire heat transfer surface of the radiator, but in the one disclosed in Japanese Utility Model Publication No. 62-27480, the gap between the bumper and the radiator is narrow, and Since there is no blockage between them, there are the following problems. That is, the wind flow caused by the running of the vehicle is biased to the side with less resistance, so the air flow flowing in from the air intake port opened in the bumper becomes a very irregular flow, and the wind flow on the desk. Is difficult to predict. Therefore, it is extremely difficult to determine whether or not a uniform amount of air is passing through the entire heat transfer surface of the radiator.Therefore, it is also necessary to increase the heat transfer area of the radiator to make room for it. If the heat transfer area becomes large and there is a margin, there is a problem of radiator subcooling, and there is a possibility that adequate heat exchange efficiency may not be obtained. There is a problem that design planning is difficult.

The present invention reduces the man-hours for assembling the parts to improve the productivity, rectifies the flow of the wind generated by the traveling of the vehicle, and allows the amount of the air passing through the radiator to be grasped to some extent accurately. A cooling device for a vehicle engine, which facilitates a design plan.

[0007]

Means for Solving the Problems According to the present invention for solving the above-mentioned problems, an air passage is formed by a bottom plate that closes a gap between a bumper and a radiator, and side plates erected on both sides of the bottom plate. Then, a mounting plate extending from the back surface of the bottom plate to the radiator side is integrally provided on the bottom plate, and a hole is formed in the mounting plate for inserting a protrusion protruding from the lower end of the radiator, and the mounting plate is attached to the radiator supporting member by the weight of the radiator. It is characterized by supporting.

Further, in the above means, part of the bumper is part of the wind passage.

[0009]

Since the present invention is constructed as described above, it has the following effects. That is, since the projection of the radiator is inserted into the hole provided in the mounting plate and the wind path is fixedly supported by utilizing the weight of the radiator, the assembly can be simplified. Since the bottom plate closes the gap between the bumper and the radiator, and side plates are provided on both sides of the bottom plate to form the air passage, almost all the air of the running wind flowing from the air intake port of the bumper is supplied to the radiator. It is possible to contribute to the cooling of the radiator and to allow a substantially uniform amount of air to pass through the entire area of the radiator core. Further, by utilizing a part of the bumper as a part of the air passage, the weight of the air passage itself can be reduced in addition to the above-described action.

[0010]

EXAMPLE An example of the present invention will be described below. First, the outline will be described with reference to FIG. 2. The bumper 1 has an air intake port 2 for taking in the traveling wind, and the bumper 1 faces the air intake port 2 and the grill 4.
The radiator 3 is disposed on the back side of the. In this embodiment, a member 5 for attaching the license plate to the air intake 2 is provided integrally with the bumper 1, an air passage 6 is provided beside the member 5, and a radiator is provided behind the air passage 6. 3 is located.

FIG. 1 is a longitudinal sectional view showing a portion of the wind passage 6 in FIG. 2. The wind passage 6 includes a bottom plate 601, a mounting plate 602,
It is formed of side plates 603 and 604. The width of the bottom plate 601 is almost equal to the width of the radiator 3, and the tip portion 605 of the bottom plate 601 comes into contact with the lower surface 201 of the opening of the air intake port 2, forming a streamlined shape corresponding to the running wind.
The upper end portion 606 contacts the edge of the tube sheet 302 forming the lower tank 301 of the radiator 3 and completely closes the gap between the bumper 1 and the radiator 3. Further, since the front end portion 605 of the bottom plate 601 is in contact with the opening lower surface 201 of the air intake port 2, even if the bumper 1 is slightly deformed due to a vehicle collision, the impact force is transmitted to the radiator 3. Instead, the radiator 3 is protected from the impact force at the time of collision.

The mounting plate 602 is provided integrally with the bottom plate 601 so as to extend substantially horizontally from the center of the back surface of the bottom plate 601 to the radiator 3 side, and the mounting plate 602 is provided below the radiator 3. Hole for engagement of protrusion 303 6
07 (see Figure 6) is opened. Side plates 603 and 604
As shown in FIG. 2, the bottom plate 601 is provided substantially vertically on both sides of the bottom plate 601, and the side plate 603 is provided with the member 5 integrally provided on the bumper 1 as shown in FIG. The width is narrower so that it can be used as a part of. As a result, the weight of the wind passage 6 can be reduced. The other side plate 604 is provided over the entire width from the front end 605 to the upper end 606 of the bottom plate 601, and its height is made lower than the height of the air intake port 2 to rectify the traveling wind and to assemble it. It has a shape that considers both sides.

Then, as shown in FIG. 1, between the side plate 603 and the core portion 304 of the radiator 3, and between the side plate 604 and the core portion 3
Cushion materials 15 and 16 such as sponge are provided between the pad and 04.
The air flow is regulated and the vibration of the radiator 3 is not transmitted to the side plates 603 and 604 (or other components not shown) to prevent noise from being generated, and at the same time, the opening lower surface 201 and the tip portion 605 are separated. The contact vibration between them prevents fatigue.

As shown in FIGS. 5 and 6, the bottom plate
The rear end 606 of the 601 is provided with a notch 608, and
As shown in (3), when the protrusion 303 is inserted into the hole 607 of the mounting plate 602 and assembled, the part is visible so that the assembling property is improved. Reference numeral 8 is a reinforcing rib. The hole 9 in FIG. 6 is a drain hole for draining water of the radiator 3,
The hole 10 is a clip hole, and is a member shown in FIGS. 1 and 3.
The clip can be stopped at 11 to diversify the attachment of the wind passage 6 and improve the versatility of the wind passage 6. Also, as shown in FIG.
The corners R of the notch 608 are rounded with a predetermined radius to ensure safety during assembly work.

The operation of the embodiment constructed as described above will now be described. First, the assembly will be described. The mounting plate 6 for the air passage 6 is mounted on the mounting seat 13 fixed to the member 11.
02, then insert the bush 12 to insert the bottom plate
The tip portion 605 of the 601 is supported while being in contact with the lower surface 201 of the opening, so that the air passage 6 can be positioned on the member 11.
Next, the radiator 3 is hung down, and as shown in FIG. 3, it is visually observed from the cutout 608. The radiator 3 is lowered while aligning the protrusion 303 with the bush 13, and the protrusion 303 is inserted into the bush 13. The air passage 6 is pressed and fixed by the weight of the radiator 3 to complete the assembly.

Thus, in the assembled state, the tip portion 605 of the bottom plate 601 has the air intake port 2 of the bumper 1.
The lower surface 201 of the opening and the rear end 606 of the tube sheet 302
Come into contact with.

Next, the function of rectifying the traveling wind will be described. In FIG. 4, the tip portion 605 of the bottom plate 601 is in contact with the opening lower surface 201 of the air intake port 2, and the rear end portion 606 is in contact with the tube plate 303 of the radiator 3 so that the space between the bumper 1 and the radiator 3 is reduced. Since the gap is closed and the side plates 603 and 604 are provided on both sides of the bottom plate 601, it is possible to form the air passage leading to the radiator 3 using the air intake port 2 of the bumper 1 as the air inlet of the air passage 6.

As a result, almost all of the running wind that has flowed in from the air intake port 2 can be taken in as cooling air for the radiator 3, and some of that wind flows in as an updraft (a) by the bottom plate 601. This updraft (a)
The horizontal airflow (b) collides with the horizontal airflow (b) to generate a mixed airflow (c), and the traveling wind that has flowed in from the air intake port 2 is evenly dispersed toward the core 304 of the radiator 3. On the other hand, with the horizontal airflow flowing from the grill hole 4,
Running air can be supplied to the entire area of the core 304. The traveling wind thus taken in is sucked by a fan (not shown) provided at the rear of the radiator 3 and substantially uniform air can be passed through the core 304 of the radiator 3.

In the embodiment shown in FIGS. 7 and 8, instead of providing the mounting plate 602 for the air passage 6 in FIG. 1, the rear portion of the side plate 604 is bent to form a flange portion 609 in FIG. 7 and is directly attached to the radiator 3. It is designed to be fastened with bolts, and in FIG. 8, a flange is attached to the tip of the bottom plate 601.
A 610 is provided so that it can be directly attached to the bumper 1. In this embodiment, there is no particular action in terms of assembling, but there is an action similar to that of the wind passage 6 shown in FIG.

[0020]

As described in detail above, according to the present invention, the projection of the radiator is inserted into the hole provided in the mounting plate, and the wind path is fixedly supported by utilizing the weight of the radiator, thereby simplifying the assembly. Therefore, the number of assembling steps can be reduced to reduce the cost and the productivity can be improved. In addition, since the radiator is attached by using its own weight, it is possible to improve the versatility of the air passage without requiring a component for attaching the air passage.

The bottom plate closes the gap between the bumper and the radiator, and side plates are provided on both sides of the bottom plate to form air passages. It contributes to the cooling of the radiator and allows a substantially uniform amount of air to pass through the entire area of the radiator core, which simplifies the radiator design planning and improves the heat exchange efficiency of the radiator, as well as reducing the size of the radiator. Can be reduced to reduce the weight. Further, by using a part of the bumper as a part of the wind passage, the weight of the wind passage can be reduced.

[Brief description of drawings]

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

FIG. 2 is a perspective view of a front portion of a vehicle to which the wind passage of FIG. 1 is applied.

FIG. 3 is a view showing a mounted state of the air passage of FIG.

FIG. 4 is a conceptual diagram showing a flow of traveling wind in FIG.

5 is a right side view of the wind passage in FIG. 1. FIG.

FIG. 6 is a left side view of FIG.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a perspective view showing still another embodiment of the present invention.

[Description of sign]

 1 Bumper 2 Air intake 3 Radiator 4 Grill hole 6 Airway 601 Bottom plate 602 Mounting plate 603 Side plate 604 Side plate 605 Tip 606 Rear end 607 Hole 608 Notch

Claims (2)

[Claims] 1. An air passage is formed by a bottom plate that closes between a bumper and a radiator, and side plates that are erected on both sides of the bottom plate.
A mounting plate extending from the back surface of the bottom plate to the radiator side is provided integrally with the bottom plate, and a hole is formed in the mounting plate to insert a protrusion protruding from the lower end of the radiator, and the mounting plate is supported by the radiator support member by the weight of the radiator. A cooling device for a vehicle engine, characterized by: 2. The cooling device for a vehicle engine according to claim 1, wherein a part of the bumper is a part of the wind passage.