JPH08226325A - Cooling water reservoir tank for automobile - Google Patents

Abstract

PURPOSE: To prevent cooling water from splashing into the engine room and to increase degrees of freedom for layout. CONSTITUTION: An overflow pipe portion 16, whose upper end passes through the front wall of a tank main body 11 to communicate with the inside of the tank main body 11, and whose lower-end opening 17 is provided integral with the lower side of the tank main body 11 and opens downwards, is projected toward and molded integrally with the front of the tank main body 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vehicle cooling water reservoir tank.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional cooling water reservoir tank for an automobile, which has a cooling water replenishing port 2 in which a cap 3 is detachably fitted on the upper wall of a tank body 1, and an overflow port 4. And a radiator communication port 5 is provided at the lower rear portion of the tank body 1, and the radiator communication port 5 is communicated with an upper tank of a radiator (not shown) through an overflow tube 6 to The cooling water that overflows from the upper tank is collected in the tank body 1.

The tank body 1 is disposed on the front ledge 9a of the hood ridge panel 9 forming the side wall of the engine room E / R through a locate pin 7 which is erected on the bottom surface. The tank body 1 is fastened and fixed via brackets 8 integrally formed on the front and rear side edges.

This similar structure is used, for example, in Japanese Utility Model Publication 4-125.
621.

[0005]

As described above, the tank body 1 is mounted on the front ledge 9a of the hood ridge panel 9 so as not to interfere with other functional components in the engine room, and the tank body 1 is The overflow port 4 on the upper wall is
Even if the cooling water overflows from inside the tank body 1 without being collected in the tank body 1, the cooling water will not be splashed on other functional parts in the engine room near the periphery of the tank body 1. The opening direction is, for example, the front of the vehicle,
It is set integrally in a specific orientation.

However, as described above, the tank body 1 is mounted on the front shelf 9a of the hood ridge panel 9 at the front corner of the engine room E / R, and the overflow port 4 is formed in a specific direction such as the front of the vehicle. However, since the overflow port 4 is erected on the upper wall of the tank main body 1, when the overflow amount of the cooling water from the overflow port 4 is large, the cooling water will be in the engine room E / R. It is unavoidable that it scatters on the upper part of the vehicle and hits other functional parts in the engine room around it. Also, not only the hood ridge panel 9 but also the vehicle body panel such as the radiator core support panel 10 is extensively wet and rusted. Causes a problem that causes.

Further, as described above, when the tank body 1 is mounted in a space-constrained portion in the engine room E / R, the upper surface and the front and rear side surfaces of the tank body 1 do not have protrusions as much as possible. Although this is more advantageous in terms of layout,
In addition to the cooling water replenishment port 2, the overflow port 4 must be set on the upper wall of the tank body 1, and the brackets 8 must be set on the front and rear sides. Must be arranged so as not to interfere with the functional parts in the engine room, and the layout of the tank body 1 and other functional parts in the engine room is very difficult.

Therefore, according to the present invention, even if the cooling water overflows from the tank body, it is possible to avoid the cooling water from splashing to other functional parts in the engine room and the vehicle body panel in the surrounding area, and
(EN) A cooling water reservoir tank for an automobile, in which the protrusions on the peripheral wall of the tank body can be reduced as much as possible and the degree of freedom in the layout can be expanded.

[0009]

According to a first aspect of the present invention, the upper end portion penetrates one side wall of the tank body to communicate with the upper portion of the tank body, and the lower end opening portion is the lower side of the tank body. It is characterized in that an overflow pipe portion which is integrally connected to the above portion and opens downward is projected to one side portion of the tank body and integrally formed.

A second aspect of the present invention is characterized in that one side portion of the tank body according to the first aspect and an intermediate portion of the overflow pipe portion are integrally connected by a wall portion.

According to a third aspect of the present invention, an overhang portion projecting into the tank body is formed in an upper portion of one side portion of the tank body according to the first and second aspects, and an overflow pipe portion is provided above the overhang portion. It is characterized in that the upper end portion of is formed so as to communicate with the inside of the tank body.

A fourth aspect of the present invention is characterized in that a mounting portion having an enlarged area is formed on a wall portion connecting one side portion of the tank body and the overflow pipe portion according to the third aspect. .

A fifth aspect of the present invention is characterized in that the mounting seat according to the fourth aspect is formed in a portion where an overhang portion of one side of the tank body is formed.

According to a sixth aspect of the present invention, the lower end opening of the overflow pipe section according to any of the first to fifth aspects is formed so as to project downward from the bottom surface of the tank body, and the lower end opening penetrates the vehicle body panel. The feature is that it is placed outside the vehicle.

[0015]

According to the first aspect of the present invention, when a large amount of cooling water overflows from the radiator into the tank body and the tank body becomes full, the cooling water that cannot be collected by the tank body flows to the overflow pipe section. It flows in and is discharged to the outside from the opening at the lower end of the overflow pipe section.

Since the lower end opening of the overflow pipe is integrally connected to the lower side of the tank main body and opens downward, the overflowed cooling water is scattered to the upper side in the engine room, and the other surrounding areas. It is possible to enhance the security of these functional parts in the engine room without affecting the functional parts in the engine room, and to prevent the functional parts in the engine room from being scattered around.

Further, since the overflow pipe portion is projected integrally on one side of the tank body and integrally molded, and does not project to the upper wall of the tank body, the layout layout of the tank body and other functional parts in the engine room is reduced. The degree of freedom can be expanded.

According to the second aspect, since one side portion of the tank main body and the intermediate portion of the overflow pipe portion are integrally connected by the wall portion, the strength and rigidity of the overflow pipe portion can be sufficiently secured. A sense of quality can be improved, and a moldability can be improved because there is no space between the tank body and the overflow pipe section.

According to the third aspect of the present invention, an overhang portion projecting into the tank body is formed at an upper portion of one side portion of the tank body, and an upper end portion of the overflow pipe portion is communicated with the overhang portion above the tank body. Since it is formed, even if the cooling water in the tank body moves or the vehicle inclines when the vehicle is running, the baffle action of this overhang part blocks the cooling water below the communicating part of the overflow pipe part, Water can be prevented from flowing out.

According to the fourth aspect, since the mounting seat having an enlarged area is formed on the wall portion connecting the one side portion of the tank body and the overflow pipe portion, the mounting seat having the large area is formed. The tank body can be attached to the vehicle body panel with, and the bracket protruding to the peripheral wall portion of the tank body is not required, so that the moldability can be improved, and since the peripheral wall portion has no protrusions, the tank body and other engine room functions The degree of freedom in the layout of the parts can be further expanded.

According to the fifth aspect, since the mounting seat of the wall portion is formed in the portion where the overhang portion is formed on one side of the tank body, the wall area can be easily increased in design.

According to the sixth aspect of the invention, since the lower end opening of the overflow pipe portion projecting downward from the bottom surface of the tank body penetrates the vehicle body panel and is projected outside the vehicle, the overflow pipe portion overflows. All the cooling water in the tank body can be discharged to the outside of the vehicle without being scattered in the engine room, which can further enhance the safety of the functional parts in the engine room and also cause the vehicle body panel to get wet and rust. Can be avoided, and the quality and reliability can be further enhanced.

Further, by arranging the lower end opening of the overflow pipe portion so as to penetrate the vehicle body panel, the tank body can be positioned, the workability of mounting the tank body can be improved, and the mounting stability of the tank body is enhanced. be able to.

Further, since the locating pin for positioning the tank body is not necessary, the moldability of the tank body is further improved, and the cost can be obtained advantageously.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 11 denotes a tank body made of an appropriate synthetic resin material, and a cooling water replenishing port 12 is provided upright near the rear portion of the upper wall of the tank body. Is detachably attached.

A radiator communication port 14 is integrally formed in the lower part of the rear wall of the tank body 11, and the radiator communication port 14 is communicated with an upper tank of a radiator (not shown) through an overflow tube 15 to cause an overflow from the upper tank. The cooling water to be collected is collected in the tank body 11.

The overflow pipe section 1 is provided on one side of the tank body 11, for example, on the front side of the tank body 11.
6 is projected forward and is integrally formed.

The upper end of the overflow pipe portion 16 penetrates through the front wall of the tank body 11 and communicates with the upper portion of the tank body 11, and the lower end opening 17 is integrally connected to the front wall of the tank body 11. Open downwards.

In this embodiment, the overflow pipe portion 16 is biased toward the hood ridge panel 9 side so as to be flush with the side wall of the tank body 11 facing the hood ridge panel 9 and at the same time, the tank body. The lower end opening 17 is formed so as to be flush with the upper wall of the tank 11, and the lower end opening 17 projects slightly below the bottom surface of the tank body 11.

The front wall of the tank body 11 and the middle wall of the overflow pipe 16 are flush with the side faces of the hood ridge panels 9.
8 are integrally connected.

An overhang portion 19 projecting into the tank body 11 is provided in an upper portion of a front side portion of the tank body 11 in which the overflow pipe portion 16 is continuously provided, and an overflow pipe is provided above the overflow hang portion 19. The upper end of the portion 16 is communicated and integrally formed.

Further, a mounting seat 18a whose area is enlarged in the front-rear direction by forming a recess in the overhang portion 19 of the tank body 11 is formed in the wall portion 18, and a bolt insertion hole 20, for example, is formed in the mounting seat 18a. Then, the bolt 21 is inserted into the bolt insertion hole 20 to fasten and fix the tank body 11 to the hood ridge panel 9 at the mounting seat 18a.

On the other hand, the lower end opening 17 of the overflow pipe portion 16 projecting from the bottom surface of the tank body 11 is inserted into the front shelf 9a of the hood ridge panel 9 on which the tank body 11 is mounted. Engagement holes 22 are formed to project 17 into the outside of the vehicle.

According to the structure of the above embodiment, the tank body 1
1 is mounted on the front shelf 9a of the hood ridge panel 9 at the front corner in the engine room E / R and used. At this time, the lower end opening 1 of the overflow pipe 16 is used.
Since the tank body 11 can be positioned by inserting and engaging 7 into the engaging hole 22 of the front side shelf portion 9a, the mounting work can be easily performed, and the lower end opening 17 and the engaging hole 22 are also provided. By engaging with the tank body 11
The mounting stability of can be improved.

The wall 18 connecting the front side of the tank main body 11 and the intermediate portion of the overflow pipe 16 is formed with a mounting seat 18a whose area is enlarged in the front-rear direction by the overhang 19 of the tank main body 11. The mounting seat 1
Since the hood ridge panel 9 is fastened and fixed to the hood ridge panel 9 at the portion 8a, the mounting area is large and the mounting strength of the tank body 11 can be increased.

Here, if the cooling water overflows from the radiator (not shown) into the tank body 11 so much that the tank body 11 becomes full and the tank body 11 cannot collect the cooling water, Since the cooling water flows into the overflow pipe portion 16 and is guided downward, and is discharged to the outside of the tank body 11 through the lower end opening portion 17, the cooling water flows to the upper portion in the engine room E / R as in the conventional case. It doesn't scatter.

In particular, in this embodiment, the lower end opening 17 of the overflow pipe portion 16 is formed so as to project downward from the lower surface of the tank main body 11 and is engaged with the front shelf portion 9a of the hood ridge panel 9. Since it is arranged so as to penetrate through the joint hole 22 and project outside the vehicle, all the cooling water that overflows into the overflow pipe portion 16 is discharged as it is from the lower end opening portion 17 to the outside of the vehicle. Since the functional parts are not involved at all, the safety of the functional parts in the engine room can be remarkably enhanced.

Further, since the cooling water does not flow out onto the front side shelf 9a of the hood ridge panel 9 or scatter on the radiator core support panel 10, it is possible to avoid rusting of the vehicle body panels due to the cooling water. it can.

On the other hand, even if the tank body 11 is not full, if the cooling water in the tank body 11 moves or the vehicle inclines forward when the vehicle is running, the cooling water will overflow. Although it is predicted that the overflow pipe portion 16 will flow out to the tank 16, an overflow hang portion 19 projecting into the tank body 11 is formed in an upper portion of the front side portion of the tank body 11 where the overflow pipe portion 16 is continuously provided. Since the upper end portion of the cooling pipe is formed so as to communicate with the upper portion of the overflow hang portion 19, cooling water is blocked by the baffle action of the overhang portion 19 below the communicating portion of the overflow pipe portion 16 as shown in FIG. It is possible to prevent the water from flowing to the outside, and thus to avoid a shortage of cooling water.

In addition to such a reservoir function,
As described above, the overflow pipe portion 16 is the tank body 1
Since the protrusion on the upper wall of the tank body 11 is only the cooling water replenishing port 12, the tank body 11 and other functional components in the engine room are arranged in a layout. The degree of freedom can be expanded.

Moreover, since the intermediate portion of the overflow pipe portion 16 and the front side portion of the tank body 11 are integrally connected by the wall portion 18, the strength and rigidity of the overflow pipe portion 16 can be sufficiently secured, and a sense of quality can be obtained. In addition, since a space is not formed between the tank body 11 and the overflow pipe portion 16, the moldability can be improved when the tank body 11 is blow molded, for example.

Regarding the moldability of this tank body 11,
In addition to the above, the tank body 11 is attached to the hood ridge panel 9 by the attachment seat 18a of the wall portion 18, so that a bracket projecting in the front-rear direction as in the conventional case is not required, and the lower end opening 17 of the overflow pipe portion 16 is unnecessary. Also functions as a locate pin for positioning, eliminating the need for a dedicated locate pin to project.
Since the number of protrusions on the peripheral wall portion can be reduced as much as possible, the moldability can be further improved and the cost can be advantageously obtained.

Although the overflow pipe portion 16 of the above-described embodiment has the upper end portion penetrating the front wall of the tank main body 11, it may be communicated with the upper portion of the tank main body 11, and therefore the tank main body 11 may be connected. It may pass through the upper wall of 11.

[0045]

As described above, according to the present invention, the following effects can be obtained.

According to the first aspect, when the overflow amount of the cooling water is too large to collect the cooling water in the tank body, the cooling water is guided downward by the overflow pipe portion to the lower side portion of the tank body. Since it can be discharged to the outside of the tank body from the bottom opening that is connected, cooling water does not splash to the upper part in the engine room and hit the functional parts in the surrounding engine room. In addition, it is possible to prevent the rusting of the vehicle body panel due to the cooling water, since it is possible to increase the cooling efficiency and to prevent the vehicle body panel from being scattered around.

Further, since the overflow pipe portion is projected integrally with one side portion of the tank main body and does not project to the upper wall of the tank main body, the layout layout of the tank main body and other functional parts in the engine room is The degree of freedom can be expanded.

According to the second aspect, since one side portion of the tank main body and the intermediate portion of the overflow pipe portion are integrally connected by the wall portion, sufficient strength and rigidity of the overflow pipe portion can be secured. A sense of quality can be enhanced, and a moldability can be improved because no space is formed between the tank body and the overflow pipe portion.

According to the third aspect of the present invention, the overhang portion projecting into the tank body is formed in the upper portion of one side portion of the tank body in which the overflow pipe portion is connected, and the upper end portion of the overflow pipe portion is formed above the overhang portion. Since they are formed in communication with each other, even if the cooling water in the tank body moves when the vehicle is running, or if the vehicle is tilted, the baffle action of this overhang part blocks the cooling water below the communication part of the overflow pipe part. Since it is possible to prevent the cooling water from flowing to the outside, it is possible to enhance the feeling of quality and reliability without inducing a shortage of the cooling water.

According to the fourth aspect, since the mounting seat having an enlarged area is formed on the wall portion connecting the one side portion of the tank body and the overflow pipe portion, the mounting seat having the large area is formed. The tank body can be attached to the vehicle body panel with higher strength, and the bracket protruding to the peripheral wall portion of the tank body is not required, so that the moldability can be improved and the peripheral wall portion has no protrusion. Therefore, the degree of freedom in the layout of the tank body and other functional components in the engine room can be further increased.

According to the fifth aspect, since the mounting seat of the wall portion is formed at the portion where the overhang portion is formed on one side of the tank body, the wall seat area can be easily enlarged by designing the mounting seat. Can be formed.

According to the sixth aspect of the invention, since the lower end opening of the overflow pipe portion projecting downward from the bottom surface of the tank body penetrates the vehicle body panel and is projected outside the vehicle, the overflow pipe portion overflows. All the cooling water in the tank body can be discharged to the outside of the vehicle without being scattered in the engine room, and the safety of the functional parts in the engine room can be further improved, and the cooling water can also be scattered to the surrounding body panels. Since it is not present, it is possible to avoid rusting of the vehicle body panel due to cooling water.

Further, by arranging the lower end opening of the overflow pipe portion so as to penetrate the vehicle body panel, the tank body can be positioned, the workability of mounting the tank body can be improved, and the mounting stability of the tank body is enhanced. be able to.

Further, since the locating pin for positioning the tank body is not required, the moldability of the tank body is further improved and the cost can be obtained advantageously.

[Brief description of drawings]

FIG. 1 is a perspective view showing an arrangement state of an embodiment of the present invention.

FIG. 2 is a sectional view of the embodiment.

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

FIG. 4 is a sectional view showing a tilted state of the embodiment.

FIG. 5 is a perspective view showing an arrangement state of a conventional cooling water reservoir tank.

[Explanation of symbols]

 9, 9a Body panel 11 Tank body 16 Overflow pipe part 17 Lower end opening 18 Wall part 18a Mounting seat 19 Overhang part

Claims (6)

[Claims] 1. An upper end portion penetrates one side wall of the tank body to communicate with an upper portion of the tank body, and a lower end opening portion is integrally connected to a lower side portion of the tank body and opens downward. A cooling water reservoir tank for an automobile, characterized in that an overflow pipe portion is projected on one side of the tank body and integrally molded. 2. A cooling water reservoir tank for an automobile according to claim 1, wherein one side portion of the tank body and an intermediate portion of the overflow pipe portion are integrally connected by a wall portion. 3. An overhang portion projecting into the tank body is formed at an upper portion of one side portion of the tank body, and an upper end portion of an overflow pipe portion is formed above the overhang portion so as to communicate with the tank body. Claim 1, characterized in that
2. A cooling water reservoir tank for automobiles according to 2. 4. A cooling water reservoir for an automobile according to claim 2, wherein a mounting seat having an enlarged area is formed on a wall portion connecting one side portion of the tank body and the overflow pipe portion. tank. 5. The cooling water reservoir tank for an automobile according to claim 4, wherein the mounting seat is formed at a portion where an overhang portion is formed on one side of the tank body. 6. The lower end opening of the overflow pipe portion is formed so as to project downward from the bottom surface of the tank body, and the lower end opening is arranged so as to project through the vehicle body panel to the outside of the vehicle. A cooling water reservoir tank for an automobile according to any one of items 1 to 5.