KR100427340B1 - Device for injecting washer liquid - Google Patents

Abstract

The present invention relates to a washer fluid injector for automobiles, comprising a worm wheel, an electrode plate attached to the worm wheel, and a terminal such that the electrode plate is grounded. By eliminating, the installation structure and operation structure can be simplified to improve the assembly workability. Also, by eliminating the two unidirectional rotating washer motors and adopting one forward rotating washer motor, the cost can be reduced. It is to provide a washer fluid injection device for an automobile.

Description

Automotive washer liquid injection device {Device for injecting washer liquid}

The present invention relates to a washer fluid injection device for automobiles, and more particularly, to spray washer fluid on the windshield immediately before the blade passes according to the operating direction of the wiper blade to prevent waste of washer fluid and to prevent contamination by washer fluid. The present invention relates to a washer fluid injection device for automobiles, which has improved the cost and structure of the existing device.

Generally, a wiper system is provided as a device means for securing a forward view in rainy weather or for cleaning windshield glass for automobiles contaminated with dust or the like.

The wiper system comprises a wiper motor for rotating the wiper link, a wiper blade for removing rainwater or dirt while moving the windshield glass surface left and right by the wiper link, and a wiper arm supporting the wiper link.

In addition, when wiping the surface of the glass by operating the wiper to eject the washer liquid to facilitate the movement of the wiper blade and remove contaminants.

The washer fluid injection device for injecting the washer fluid is composed of a washer tank for storing washer fluid, a washer motor for pumping the washer fluid in the washer tank, and a washer nozzle for injecting the washer fluid supplied from the washer motor into the windshield. have.

In the conventional washer fluid injector having such a configuration, the vehicle body is contaminated by the washer fluid injected while the wiper passes when the washer liquid is injected, and there is a problem that the washer liquid is wasted.

In view of such a problem, the present applicant automatically sprays washer liquid on the windshield glass surface directly passing the blade according to the operating direction of the wiper blade to prevent waste of washer liquid and to prevent contamination by washer liquid. Patent application (application number: 1996-79608 (1996.12.31)) was registered (registration number: 230949 (1999.08.25)).

Looking at the configuration of the vehicle washer liquid injection device (Patent Registration No .: 230949 (1999.08.25)), as shown in Figure 4 attached to the wiper motor for rotating the wiper link by the electricity supplied from the battery, In the automobile wiper device composed of a wiper arm for rotating the wiper blade by the rotational force of the wiper motor transmitted through the wiper link, the first electrode plate 62 and the first electrode plate (62) is rotated by the wiper motor around the rotation pin The worm wheel 60 having the two electrode plates 64, the first terminal and the second terminal connected to the first electrode plate 62 and the second electrode plate 64, respectively, the first terminal and the second terminal. A first washer motor 66 and a second washer motor 68 which are operated according to a signal transmitted through the first and second wires connected to and supply the washer liquid to the first and second injection ports; Flowed into the first injection port 32 and the second injection port 34 It consists of a washer nozzle 30 having a first injection hole 36 and a second injection hole 38 for spraying the washer liquid into the windshield glass.

Therefore, by spraying the washer liquid just before the wiper passes, it is possible to prevent waste of the washer liquid and to prevent the vehicle body from being contaminated by the washer liquid that is thrown out by the collision with the wiper arm.

However, the following disadvantages occurred in the conventional washer liquid injection device (Patent Registration No .: 230949 (1999.08.25)) registered in the prior application.

The installation structure and operation structure of the worm wheel that rotates as the wiper motor rotates, the electrode plate attached to the worm wheel, and the terminal grounded to the electrode plate are complicated, and two unidirectional washer motors are used. As a result, it takes up a lot of installation space and at the same time acts as a cause of the increase in cost.

Accordingly, in view of the above, the present invention provides a worm wheel, an electrode plate attached to the worm wheel, and a terminal such that the electrode plate is grounded in the washer fluid injector previously registered and registered. By eliminating this, the installation structure and the operation structure can be simplified to improve the assembly workability. Also, by eliminating the two unidirectional rotating washer motors and adopting one forward rotating washer motor, the cost can be reduced. It is an object to provide a washer fluid injector for an automobile.

1 is a block diagram showing a vehicle washer liquid injection device according to the present invention,

Figure 2a, 2b is a cross-sectional view showing a state in which the two-way washer motor of the washer fluid injection apparatus according to the present invention,

Figure 3a, 3b is a front view showing a state in which the washer liquid is sprayed on the windshield glass surface from the washer liquid injector according to the present invention,

4 is a schematic view showing a conventional washer fluid injection device for automobiles.

<Explanation of symbols for the main parts of the drawings>

10 holder 12: first nozzle

14: second nozzle 16: the first passage

18: second passage 20: stationary motor

22: first supply port 24: second supply port

26: ECU 30: washer nozzle

32: 1st injection port 34: 2nd injection port

36: first sprayer 38: second sprayer

40: washer liquid tank 42: wiper blade

44: windshield glass 46: wiper motor

50: diaphragm 60: worm wheel

62: first electrode plate 64: second electrode plate

66: first washer motor 68: second washer motor

Hereinafter, the present invention will be described with reference to the accompanying drawings.

The present invention for achieving the above object is:

In the washer liquid injector for automobiles,

A washer nozzle (30) having a first injection port (32) and a second injection port (34) attached to a lower bottom surface, and having a first injection hole (36) and a second injection hole (38) formed on an upper surface thereof; The first nozzle 12 and the second nozzle 14 which are connected to the first injection port 32 and the second injection port 34 are formed at both sides of the lower end, and the first passage 16 and the first inside A holder 10 divided into two passages 18; Coupled with the holder 10, characterized in that consisting of the stationary motor 20 for pumping the washer liquid from the washer liquid tank 40 to the first nozzle 12 or the second nozzle (14).

In a preferred embodiment, the first passage 16 and the second passage 18 of the holder 10 are bisected into a diaphragm 50 in the form of a fluid, which diaphragm 50 is the holder. It is characterized in that it is positioned to block the inlet of the second nozzle (14) (10).

In a more preferred embodiment, the first supply port 22 and the second supply port 24 are formed on both sides of the lower end of the stationary motor 20, the first supply port 22 and the second supply port ( 24 is characterized in that it is connected in communication with the first passage 16 and the second passage 18 of the holder 10, respectively.

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

1 is a block diagram showing a washer fluid injector for automobiles according to the present invention, and reference numeral 20 denotes a forward and reverse motor.

An ECU 26 is connected to the stationary motor 10 so as to rotate in clockwise or counterclockwise direction according to the current application signal of the ECU 26.

The first supply port 22 and the second supply port 24 are formed at both lower ends of the stationary motor 20, and a port connected to the washer liquid tank 40 is formed at the rear part.

Here, the holder 10 is fastened to the first supply port 22 and the second supply port 24 of the stationary motor 20, and the first nozzle 12 and the first nozzle 12 are formed on both sides of the lower end of the holder 10. The two nozzles 14 are symmetrical and the ends thereof are formed to protrude outwards, and the first and second passages 16 and 18 are divided into two parts.

More specifically, the means for dividing the first passage 16 and the second passage 18 of the holder 10 into two parts is a diaphragm 50 having a fluidity, which is a diaphragm. 50 is positioned to block the inlet of the second nozzle 14 of the holder 10.

In addition, the first supply port 22 and the second supply port 24 of the stationary motor 20 are respectively provided on the upper opening side of the first passage 16 and the second passage 18 of the holder 10. It is inserted in communication and is fastened.

Meanwhile, the first nozzle 12 and the second nozzle 14 of the holder 10 are connected to the first injection port 32 and the second injection port 34 of the washer nozzle 30 using a connection hose. Each is connected.

Referring to the operation relationship of the washer liquid injector of the present invention having such a configuration as follows.

First, after operating the multi-function switch is installed in the front of the driver's seat for the wiper drive, when operating the switch for injecting the external liquid, the ECU 26 detects this to flow the drive current to the stationary motor 20 send.

At this time, the ECU 26 transmits a current signal to the stationary motor 20 in accordance with the rotational drive angle of the wiper motor 46, which automatically blades 42 according to the operating direction of the wiper blade 42. It is to be able to spray the washer liquid on the windshield glass 44 just before passing.

Accordingly, the stationary motor 20 is driven to rotate in a clockwise direction while pumping the washer liquid from the washer liquid tank 40 as shown in FIG. 2A to the first supply port 22 of the stationary motor 20. The washer fluid is ejected.

At the same time, the washer fluid flows through the first passage 16 and the first nozzle 12 of the holder 10, and subsequently passes through the first injection port 32 of the washer nozzle 30. It is injected to the windshield glass surface through the first injection hole (36).

As shown in FIG. 3A, the rotation angle of the wiper motor 46 (the position just before the wiper blade 42 passes through the surface of the windshield glass 44 at the position where the washer fluid is injected) is measured by the ECU 26. Since the current signal is applied to the stationary motor 20, the washer fluid is sprayed immediately before the wiper blade 42 passes through the surface of the windshield glass 44.

On the other hand, as shown in FIG. 3B, the rotation angle of the wiper motor 46 (the wiper blade 42 moves back to its original position, but passes through the surface of the windshield glass 44 at the position where the washer fluid is injected). When the position immediately before the ECU 26 is recognized, the current signal for counterclockwise rotation is applied to the stationary motor 20.

Therefore, when the forward and reverse motor 20 is driven to rotate in the counterclockwise direction, as shown in FIG. 2B, the washer fluid is pumped from the washer fluid tank 40 to the second supply port 24 of the forward and reverse motor 20. At the same time, the washer liquid passes through the second passage 18 of the holder 10.

At this time, the washer fluid at the moment passing through the second passage 18 of the holder 10 pushes the diaphragm 50 to its own pressure, and the pushed diaphragm 50 is formed of the holder 10. The inlet of the first nozzle 12 is blocked, and the inlet of the second nozzle 14 that is blocked becomes open.

Accordingly, the washer fluid exits the inlet of the second nozzle 14 and passes through the second injection port 34 of the washer nozzle 30, and at the same time, the windshield glass 44 through the second spray hole 38. Sprayed on the surface.

Accordingly, the wiper blade 42 is moved back to the original position, the washer liquid is injected just before passing through the surface of the windshield glass 44 at the position where the washer liquid is injected.

As a result, since the washer liquid is injected into the windshield glass 44 immediately before the wiper blade 42 passes, the washer liquid can be prevented from flowing out and wasted, and contamination by the washer liquid can be prevented.

As described above, according to the washer fluid injection device for automobiles according to the present invention, the installation structure and the operation structure are simpler than the conventional washer fluid injection device, and assembling workability can be greatly improved. Excluding the use of unidirectional motors, the use of one stationary motor provides significant cost savings.

Of course, by spraying the washer liquid on the windshield glass surface immediately before the wiper blade passes, it is possible to obtain the same effect of preventing the washer liquid from wasting and contamination.

Claims (3)

delete The washer nozzle 30 having the first injection port 32 and the second injection port 34 attached to the bottom of the lower surface and the first injection hole 36 and the second injection hole 38 formed on the upper surface thereof; The first nozzle 12 and the second nozzle 14, which are connected to the first injection port 32 and the second injection port 34, are coupled to the holder 10 and the holder 10 formed at both sides of the lower end thereof. In the washer fluid injector for automobiles, which comprises a stationary motor 20 for pumping washer fluid from the washer fluid tank 40 to the first nozzle 12 or the second nozzle 14, The interior of the holder 10 is divided into a first passage 16 and a second passage 18, the first passage 16 and the second passage 18 is a membrane-like diaphragm 50 having fluidity The diaphragm 50 is divided into two, the washer fluid injection device for a vehicle, characterized in that positioned to block the inlet of the second nozzle (14) of the holder (10). According to claim 2, wherein the first supply port 22 and the second supply port 24 is formed on both sides of the lower end of the stationary motor 20, the first supply port 22 and the second supply port ( 24 is a vehicle washer liquid injector, characterized in that connected to the first passage (16) and the second passage (18) of the holder (10), respectively.