KR101262591B1 - Apparatus for nozzle in wiper washer - Google Patents

Abstract

PURPOSE: A washer nozzle device for a wiper is provided to effectively remove contaminants from a windshield glass by controlling the discharged angle of a washer solution depending on the temperature of outdoor air. CONSTITUTION: A washer nozzle device for a wiper comprises a washer nozzle(100), multiple nozzles(140,141,142), a guide valve(150), and an expansion member(160). The washer nozzle is installed in a hood of a vehicle. The nozzles are installed in the washer nozzle at each different height. The guide valve supplies a washer solution to the nozzles while lifting in the washer nozzle. The expansion member is installed in between the guide valve and the washer nozzle in order to lift up the guide valve depending on the temperature of outdoor air.

Description

Apparatus for nozzle in wiper washer}

The present invention relates to a wiper washer nozzle apparatus, and more particularly, to a wiper washer nozzle apparatus for spraying washer liquid to a predetermined height by adjusting the discharge angle of the washer liquid injected in accordance with the temperature of the outside air. .

In general, a washer nozzle device is installed on the top of a hood of a vehicle, and the washer nozzle device sprays the washer fluid stored in the washer fluid storage tank with a washer pump to remove foreign substances on the windshield glass to secure a forward view. .

The conventional washer nozzle device shown in FIG. 1 is implemented through a washer nozzle 1 installed in a hood (not shown) of a vehicle, as disclosed in [Document 1].

The washer nozzle 1 is a main body portion 2 which penetrates through a hood of a vehicle, and a washer liquid storage tank (not shown) that is formed in the lower portion of the main body portion 2 and is provided in an engine room (not shown). A head part 4 and an main body part 2 provided with a connecting part 3 connected to the main body part 2 and an injection nozzle 5 which is formed on an upper part of the main body part 2 and is installed on an upper surface of the hood and sprays washer fluid. It consists of a check valve (6) which is installed in the interior of the flow path to which the washer fluid is supplied in one direction only.

When the washer nozzle 1 configured as described above is operated by operating a washer switch (not shown) installed in the driver's seat, the pump (not shown) associated with the washer switch is operated. The washer fluid stored in the washer fluid storage tank by the operation of the pump is transferred through a transfer pipe (not shown), and then to the windshield glass (not shown) through the washer nozzle 1 provided in the head part 4. Sprayed.

By removing the foreign matter on the windshield glass that interferes with the operation through the washer fluid and the wiper sprayed by this operation to secure the driver's front field of view, it is possible to drive safely.

[Document 1] Korean Unexamined Patent Publication No. 10-2007-0033552 (Name: wiper washer nozzle structure), Publication Date: March 27, 2007, Figure 1

However, since the washer fluid generally varies in viscosity depending on the temperature of the outside air, and the injection pressure changes according to the changed viscosity, the washer liquid sprayed through the washer nozzle 1 falls on the windshield glass according to the temperature of the outside air. Will be different.

That is, the viscosity of the washer liquid is lowered at the normal temperature (less than or equal to 10 degrees Celsius or more), whereas the starting point height of the washer liquid is formed 400 mm above the lower end of the windshield glass, while the viscosity of the washer liquid is increased (increased) at a low temperature of -10 ° C. Since the injection pressure is lowered, the impingement point height of the washer liquid is formed over 100 mm from the lower end of the windshield glass, thus preventing the contamination of the windshield glass.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, by adjusting the discharge angle of the washer liquid sprayed through the washer nozzle according to the temperature of the outside air, the washer fluid is always windshield irrespective of the temperature of the outside air. It is an object of the present invention to provide a wiper washer nozzle device which is sprayed to a certain height of the glass to effectively remove the contaminants of the windshield glass.

The above object is a washer nozzle installed in the hood of the vehicle; A plurality of nozzles installed in isolation from the washer nozzles at different heights; A guide valve which is raised and lowered in the washer nozzle and is in communication with the nozzle to supply washer fluid; And an expansion and contraction member installed between the guide valve and the washer nozzle to move the guide valve up and down according to the temperature of the outside air.

In addition, the stretching member includes a wax that is contracted or expanded according to the temperature of the outside air.

The plurality of nozzles may include first, second, and third nozzles, and the third nozzle may be installed above the first and second nozzles, and the first and second nozzles may be installed in the washer nozzles, respectively. 1,2,3 flow paths are formed, and the first and second flow paths are branched from one inlet, and the guide valve has a lower surface thereof opened, and an outer surface of the first and second flow paths is optional with the first, second, or third flow paths. A discharge port communicating with is formed.

According to the wiper washer nozzle device of the present invention, the washer fluid is sprayed through the first and second nozzles of the washer nozzle at the normal temperature, and at a low temperature of minus 10 ° C. or lower, the washer liquid has a higher discharge position than the first and second nozzles. By spraying through the nozzle, the washer liquid sprayed through the washer nozzle is effectively sprayed to a certain height of the windshield glass by the discharge angle is controlled by the temperature of the outside air by a plurality of nozzles to effectively remove the contaminants of the windshield glass. In this way, the driver's front field of vision is stably secured, thereby promoting safe driving.

1 is a view showing a washer nozzle disclosed in the related art.
2 is a view showing a washer nozzle according to the present invention.
FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 and shows the nozzles opened at a normal temperature.
FIG. 4 is a cross-sectional view taken along line BB of FIG. 2 and shows the nozzle opened under a low temperature.
5 is a view of a guide valve configured in the washer nozzle according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 to 5 are views illustrating a washer nozzle device according to the present invention.

As shown in FIG. 2, the wiper washer nozzle device of the present invention is implemented through a washer nozzle 100 installed in a hood (not shown) of the vehicle, and the washer nozzle 100 is a main body part 110 and a connection part. 120, a head 130, a plurality of nozzles, a guide valve 150, the expansion and contraction member 160.

The main body 110 of the washer nozzle 100 is a hollow member through which washer fluid flows. The main body 110 of the washer nozzle 100 penetrates the hood of the vehicle, and the upper and lower parts of the main body 110 are respectively provided with the head 130 and the connecting portion ( 120 is integrally formed to extend.

The connection part 120 is a hollow member which is integrally formed under the main body part 110 and communicates with the main body part 110, and is connected to a washer fluid storage tank (not shown) provided in an engine room (not shown).

In addition, the head part 130 is a member integrally formed on the upper part of the main body part 110 to communicate with the main body part 110, and is installed on an upper surface of the hood and is opposed to a windshield glass (not shown). One side of the unit 130 is provided with a plurality of nozzles for spraying the washer liquid to the windshield glass.

The plurality of nozzles include first, second, and third nozzles 140, 141, and 142 installed on one surface of the head part 130 to be spaced apart from each other, and the first, second, and third nozzles 140, 141. ) 142 is a discharge position of the washer liquid is formed by differently installed positions (or "discharge position") is formed by the first, second, third flow path (140a) (141a) (142a) to be described later, respectively The angle is adjusted. That is, the third nozzle 142 is installed at a position higher than the first and second nozzles 140 and 141 by the third flow path 142a, and the discharge angle of the third nozzle 142 is also the first, It is preferable that the two nozzles 140 and 141 be formed more inclined upward. This is to inject the washer liquid with high viscosity at low temperature of the outside temperature to the impingement point of the windshield glass such as under normal temperature.

Therefore, when the outside temperature is the normal temperature, since the viscosity of the washer liquid is normal, the washer liquid is injected through the first and second nozzles 140 and 141 to the impingement point of 400 mm height of the windshield glass, and the outside temperature is below zero. When the temperature is lower than ℃, the viscosity of the washer liquid is increased and the ejection pressure is lowered, so that it is sprayed through the third nozzle 142 installed at a position higher than the first and second nozzles 140 and 141 to compensate for this. Similarly, the impinging point of the washer liquid can be formed at a height of 400 mm of the windshield glass.

Meanwhile, the first, second and third nozzles 140, 141, and 142 may be mounted on the head 130 of the washer nozzle 100 in which the first, second, and third nozzles 140, 141, and 142 are installed. The first, second and third flow paths 140a, 141a and 142a are respectively provided. As described above, the third flow path 142a in which the third nozzle 142 is installed is formed on the first and second flow paths 140a and 141a as shown in FIGS. 3 and 4. It may be formed to have a steeper discharge angle than the first and second flow paths 140a and 141a.

The first, second and third flow passages 140a, 141a and 142a are connected to the washer liquid storage tank through the inside of the washer nozzle 100. In particular, the first and second flow passages 140a and 141a are shown in FIG. As shown, the outlet located at the outer side is formed by branching from one inlet located at the inner side of the washer nozzle 100. As described above, the first and second flow passages 140a and 141a branching from one inlet narrow their diameters, while the discharge pressure increases, so that the washer liquid can be sprayed to the 400 mm high impingement point of the windshield glass. do.

In addition, the guide valve 150 is installed in the main body 110 of the washer nozzle 100 so as to be lifted up and down. As shown in FIG. 5, the guide valve 150 has a cylindrical shape in which a lower surface thereof is opened and an upper surface thereof is closed, and a plurality of discharge ports 151 and 152 for supplying a washer fluid are formed in the outer surface thereof. The discharge ports 151 and 152 formed as described above are preferably formed on the same horizontal line on the left and right sides of the outer side of the guide valve 150, but may be formed with a height difference. The discharge ports 151 and 152 formed as described above are selectively communicated with the first and second flow paths 140a and 141a or the third flow path 142a of the washer nozzle 100 when the guide valve 150 is elevated.

In addition, between the guide valve 150 and the inner surface of the washer nozzle 100, the expansion and contraction member 160 for elevating the guide valve 150 is installed, the expansion and contraction member 160 is contracted or Preferably, the expansion is made of wax that elevates the guide valve 150. Such a wax may be provided with a thermostat or sprinkler, or the like, and may be made of wax that causes a volume change according to temperature change. The stretching member 160 made of the wax as described above is fixed to the upper surface of the guide valve 150 and the inner surface of the washer nozzle 100 by fusion as ultrasonic waves.

The operation of the wiper washer nozzle device according to the present invention as described above will be described.

First, when the temperature of the outside air is a normal temperature, that is, a temperature higher than room temperature or minus 10 ° C, as shown in FIG. 3, the expansion member 160 provided between the guide valve 150 and the inner surface of the washer nozzle 100 is provided. Is in an expanded state, the guide valve 150 is lowered in the main body portion 110 of the washer nozzle 100 by the expanded expansion and contraction member 160, in this state to the left of the guide valve 150 The first discharge port 151 (see FIG. 5) positioned is in communication with the inlet of the first and second flow paths 140a and 141a, while the third flow path 142a is closed by contacting the outer surface of the guide valve 150. It becomes a state.

Accordingly, the washer fluid stored in the washer fluid storage tank is transferred by a pump (not shown), and the washer fluid thus transferred is connected to the washer nozzle 100, the main body 110, the head 130, and the guide valve. The first and second passages 140a and 141a are supplied to the first and second passages 140a and 141a through the first discharge port 151 of the 150. It is injected into the windshield glass through the 140 (141).

At this time, the impingement point of the washer liquid sprayed into the windshield glass is formed at a point 400 mm above the lower end of the windshield glass, thereby effectively removing the contaminants on the windshield glass due to the height of the sufficient impingement point.

And, in winter, when the temperature of the outside air is less than 10 degrees Celsius or less, as shown in Figure 4, the elastic member 160 is contracted between the guide valve 150 and the inner surface of the washer nozzle (100).

Then, the guide valve 150, which was lowered in the main body 110 of the washer nozzle 100 by the contracting elastic member 160, rises to the upper side of the main body 110, such a guide valve. The lower first and second flow paths 140a and 141a are closed in contact with the outer surface of the guide valve 150 by the rising of the 150, while the upper third flow path 142a is the right side of the guide valve 150. It communicates with the 2nd discharge port 152 (FIG. 5 reference | standard) located in the same.

Therefore, the washer liquid is supplied to the third flow path 142a through the second discharge port 152 of the guide valve 150, and the washer liquid thus supplied is injected into the windshield glass through the third nozzle 142.

At this time, the washer liquid sprayed as described above is not only the height of the flow path higher than at normal temperature, but also the diameter of the washer can be reduced to increase the discharge pressure, it is possible to inject the washer liquid farther.

Therefore, even if the viscosity of the washer fluid in winter increases, the discharge pressure of the washer fluid sprayed through the upper third flow path 142a is higher than at the normal temperature, so the impingement point at which the sprayed washer fluid falls on the windshield glass is at the above-mentioned normal temperature. It is possible to form a landing point of the same height.

Therefore, it is possible to promote safe driving by eliminating the problem that the contaminants of the upper part of the windshield glass, that is, the driver's eye level, can not be removed due to the lowering of the starting point during the low temperature in winter, and it is not necessary to use a high capacity pump and motor. Cost savings

100: washer nozzle 110: main body
120: connection 130: head
140,141,142: nozzles 140a, 141a, 142a: flow path
150: guide valve 151,152: discharge port
160: stretching member

Claims (5)

A washer nozzle installed in the hood of the vehicle;
A plurality of nozzles installed in isolation from the washer nozzles at different heights;
A guide valve which is raised and lowered in the washer nozzle and is in communication with the nozzle to supply washer fluid; And
And an elastic member installed between the guide valve and the washer nozzle to move the guide valve up and down according to the temperature of the outside air.
The method according to claim 1,
The expansion member is a wiper washer nozzle device including a wax that is contracted or expanded in accordance with the temperature of the outside air.
The method according to claim 1,
The plurality of nozzles are composed of first, second, third nozzles, the third nozzle is a wiper washer nozzle apparatus is installed on the upper portion of the first and second nozzles.
The method according to claim 3,
And a first, second and third flow paths in which the first, second, and third nozzles are installed in the washer nozzle, and the first and second flow paths are branched from one inlet.
The method of claim 4,
The lower surface of the guide valve is opened, the outer surface of the wiper washer nozzle device is formed with a discharge port selectively communicating with the first, second or third flow path.

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