JPH0986351A - Washer tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent washer pumps from being soaked with water in a low-cost constitution. SOLUTION: A wall body 52 provided with a bottom wall 52B underneath of a bottom face of washer pumps 22 and 24 is integrally formed in the tank main body 12 of a washer tank 10. This constitution thereby enables parts to be reduced in number as compared with a constitution where a waterproofing cover is separately mounted. Therefore, manufacturing cost can thereby be lowered. In addition to this, assembling works assembling the wall body 52 to the tank main body 12 can also be eliminated. As a result, the washer pumps 22 and 24 can surely be prevented from being soaked with water by a constitution low in cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer tank containing a cleaning liquid discharged by a washer pump.

[0002]

2. Description of the Related Art Conventionally, a washer device is provided in an automobile in order to wash windshield glass and the like. The washer device consists of a washer tank that is installed in the engine room to store the cleaning liquid, a washer pump that is attached to the washer tank and that delivers the cleaning liquid, and the cleaning liquid that is delivered by the washer pump is directed to the windshield glass, etc. And a washer nozzle for jetting.

Here, when the above-mentioned washer tank is arranged in the lower part of the engine room, the washer pump may be flooded while the vehicle is traveling. In this case, since a breathing hole is provided in the lower part of the washer pump to reduce fluctuations in the pressure inside the pump chamber due to heat generation and cooling due to operation of the motor, the breather action through this breathing hole causes the motor of the washer pump to move. Water may enter the room and cause the motor to rust. Therefore, conventionally, a structure for preventing water from being exposed to a washer pump described below has been adopted.

As shown in FIG. 8, a washer pump 104 is attached to a side portion of the washer tank 100 via a grommet 102. A resin waterproof cover 106 is provided on the bottom surface side of the washer pump 104 to prevent water from entering from the lower side of the vehicle body. The direction of water exposure is indicated by arrow A.

FIG. 9 shows details of the above-mentioned waterproof cover 106. As shown in this figure, the waterproof cover 106 is provided with a breathing hole 108 for alleviating fluctuations in the pump chamber pressure. The breathing hole 108 is formed in a labyrinth shape, and also in this respect, the effect of preventing the washer pump 104 from getting wet is obtained.

[0006]

However, in the case of the above-mentioned structure, since the waterproof cover 106 is formed as a separate part from the washer pump 104, the number of parts increases and the manufacturing cost increases. Further, the waterproof cover 10
Since 6 is attached to the bottom of the washer pump 104 by ultrasonic welding, the cost is increased in this respect as well.

In consideration of the above facts, an object of the present invention is to obtain a washer tank which can surely prevent the washer pump from being exposed to water with a low cost structure.

[0008]

A washer tank according to the present invention is provided with a washer pump, a tank main body for containing a cleaning liquid discharged by the washer pump, and a tank main body at least as compared with a bottom surface of the washer pump. A wall body that is integrally provided at a lower position and that prevents the washer pump from being exposed to water.

According to the above construction, since the wall body is integrally provided at a position lower than the bottom surface of the washer pump of the tank main body, it is possible to reliably prevent the washer pump from being exposed to water.

Further, since the wall body is provided integrally with the tank main body, the number of parts is reduced as compared with the case where the waterproof cover is separately attached. Therefore, the manufacturing cost is reduced. Further, since the wall body is provided integrally with the tank body, the assembling work is unnecessary. Therefore, also in this respect, cost reduction can be achieved. Therefore, the cost is low.

[0011]

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

FIG. 4 shows a front view of the washer tank 10 according to this embodiment, FIG. 5 shows a side view of the washer tank 10, and FIG. 6 shows the washer tank 10. The bottom view is shown. As shown in these drawings, the washer tank 10 is provided with a tank body 12 having a substantially rectangular parallelepiped shape and containing a cleaning liquid therein. The tank body 12 is made of resin. At the top of the tank body 12, a cylindrical cleaning liquid injection part 14 is provided.
Is provided. Further, a plurality of brackets 16 are fixed to appropriate portions on the sides of the tank body 12, and the tank body 12 is fixed to the vehicle body via the brackets 16.

A pair of pump accommodating grooves 18 and 20 are provided in parallel on one side of the tank body 12 described above. One of the pump housing grooves 18 has a front washer pump 2
2 is disposed, and a rear washer pump 24 is disposed in the other pump housing groove 20. Inside each of the washer pumps 22 and 24, a motor (not shown) for driving the pump is arranged. The front washer pump 22 and the rear washer pump 24 do not necessarily have to be provided separately, and a front and rear washer pump may be provided.

FIG. 1 is a front view of the washer tank 1.
The periphery of the washer pumps 22 and 24 at 0 is shown enlarged. As shown in this figure, the washer pumps 22 and 24 have a pair of power supply terminals 26 and 28 and connector fitting portions 30 and 32 at their upper ends, and an outlet 34 at the lower side of each side. , 36 and inlets 38, 40 (see FIGS. 2 and 3).

Grommets 42 are attached to the inlets 38, 40, respectively, and the grommet 42 is fitted into the wall portion of the tank body 12 so that the inlets 38, 40
The insides of the washer pumps 22 and 24 are communicated with the inside of the tank body 12 via 40. Further, one end of a front hose 44 is attached to the outlet 34 of the front washer pump 22, and one end of a rear hose 46 is attached to the outlet 36 of the rear washer pump 24. The other end of the front hose 44 is connected to a pair of washer nozzles 50 (see FIG. 7) arranged near the lower part of the windshield glass 48, and the other end of the rear hose 46 is near the lower part of the rear glass. Is connected to a washer nozzle (not shown) disposed in the.

Here, as shown in FIG. 1, FIG. 2, and FIG. 3, the wall body 52 is included in the washer tank 10 described above.
Are integrally formed. The wall body 52 has a pair of side walls 52A extending along the height of the washer pumps 22 and 24, although they have long and short sides, and a bottom wall 52B horizontally connecting the lower ends of the side walls 52A. And a partition wall 52C that rises from an intermediate portion in the longitudinal direction of the bottom wall 52B and is arranged between the front washer pump 22 and the rear washer pump 24. An opening 54 for routing the rear hose 46 is formed in one side wall 52A of the wall body 52.
The wall body 52 is integrally formed when the washer tank 10 is formed.

The bottom wall 52B of the wall body 52 described above is arranged such that its wall surface is located below the bottom surfaces of the washer pumps 22 and 24. Further, the upper end wall surface of the bottom wall 52B is a tapered surface that has a downward slope from the inner side to the outer side of the washer tank 10 (FIG. 2).
And FIG. 3). Therefore, even if water enters from the lower side of the vehicle body, this water is reliably drained to the outside of the washer pumps 22 and 24 by the bottom wall 52B having a downward slope.

Next, the operation and effect of this embodiment will be described. When a washer switch (not shown) is turned on,
The motors in the washer pumps 22 and 24 operate. For this reason, the cleaning liquid stored in the tank body 12 of the washer tank 10 passes through the front hose 44 and the rear hose 46, and the front washer nozzle 5
0, delivered to the rear washer nozzle. As a result, the cleaning liquid is sprayed from the washer nozzle 50 and sprayed onto the windshield glass 48 and the rear glass.

The washer tank 10 which operates as described above.
Since the tank main body 12 is provided with the wall 52, and the bottom wall 52B of the wall 52 is arranged below the bottom surfaces of the washer pumps 22 and 24, water tried to enter from the lower side of the vehicle body. In this case, the intrusion of this water is surely blocked by the bottom wall 52B. Therefore, the washer pump 2
It is possible to reliably prevent 2, 24 from getting wet.

Further, in the present embodiment, the wall body 52 described above is used.
Since it is formed integrally with the tank main body 12, the number of parts can be reduced as compared with a configuration in which a waterproof cover is separately attached as in the prior art. For this reason, manufacturing costs can be reduced. In addition to this, since the wall body 52 is formed integrally with the tank body 12 when the washer tank 10 is formed, the assembling work for assembling the wall body 52 to the tank body 12 becomes unnecessary. Therefore, also in this respect, cost reduction can be achieved. As a result, it is possible to reliably prevent the washer pumps 22 and 24 from getting wet with a low-cost configuration.

Further, according to this embodiment, since the wall body 52 can prevent the washer pumps 22 and 24 from being covered with stones, the fender liner can be abolished or, if not abolished, the shape of the fender liner can be eliminated. Can be simplified.

In the present embodiment, the wall body 52 composed of the side wall 52A, the bottom wall 52B and the partition wall 52C is used, but the present invention is not limited to this, and at least the wall surface is lower than the bottom surface of the washer pump. If so, it is possible to use wall bodies of various wall shapes.

[0023]

As described above, in the washer tank according to the present invention, the wall body for preventing the washer pump from being exposed to water is integrally provided at a position lower than at least the bottom surface of the washer pump of the tank body. Therefore, there is an excellent effect that it is possible to reliably prevent the washer pump from being exposed to water with a low-cost configuration.

[Brief description of drawings]

FIG. 1 is an enlarged view showing a main part of a washer tank having a partition according to the present embodiment.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

3 is a cross-sectional view taken along line 3-3 of FIG.

FIG. 4 is a front view of the washer tank according to the present embodiment.

FIG. 5 is a side view of the washer tank according to the present embodiment.

FIG. 6 is a bottom view of the washer tank according to the present embodiment.

FIG. 7 is a configuration diagram schematically showing a washer device including a washer tank according to the present embodiment.

FIG. 8 is a cross-sectional view of essential parts showing a washer tank provided with a waterproof cover according to a conventional example.

9 is an enlarged cross-sectional view showing the internal structure of the waterproof cover shown in FIG.

[Explanation of Codes] 10 washer tank 12 tank body 22 washer pump 24 washer pump 52 wall

Claims (1)

[Claims] 1. A washer pump is attached, and a tank main body that stores a cleaning liquid discharged by the washer pump, and a tank main body which is integrally provided at least at a position lower than a bottom surface of the washer pump, are provided. A washer tank, comprising: a wall that prevents the pump from being exposed to water.