WO2015000309A1

WO2015000309A1 - Rain wiper

Info

Publication number: WO2015000309A1
Application number: PCT/CN2014/073621
Authority: WO
Inventors: 王建成
Original assignee: Wang Jiancheng
Priority date: 2013-07-05
Filing date: 2014-03-18
Publication date: 2015-01-08
Also published as: DE112014000093T5; CN103350686A; CN103350686B; JP2015523278A; JP5990645B2

Abstract

A rain wiper comprises a wiper strip (10) having a liquid communication cavity (11) and a plurality of liquid outlets (12) communicated with the liquid communication cavity (11) provided therein. The wiper strip (10) is provided with two contact edges contacting with a wiped surface; a liquid storage slot (14) is formed between the two contact edges; the plurality of liquid outlets (12) are formed at the bottom of the liquid storage slot (14). The rain wiper further comprises a fixing support (20) for fixing the wiper strip (10) and a rotating support (30) detachably connected with the fixing support (20); a liquid supply pipe (31) communicated with the liquid communication cavity (11) is arranged on the rotating support (30). The wiper strip (10) can supply lubrication liquid while swinging, thereby reducing the dry-abrasion condition during initial swinging in a rainless state, reducing abrasion of the wiper strip and the glass, and prolonging service life of the rain wiper product. In addition, two contacting edges are adopted in the wiper strip (10), thereby effectively preventing the situation of missing scraping. Besides, since glass cleaning water for cleaning and friction reduction is sprayed out from the wiper strip, the wiper strip can be kept in a lubricating state all the time, thereby reducing the friction force.

Description

A new type of wiper

Technical field

The present invention relates to a wiper structure, and more particularly to a novel wiper that employs a liquid outlet for ejecting glass cleaning water from a wiper strip.

Background technique

In the prior art, in the current operation, the wiper on the market first sprays some water (ie, glass clean water) to the windshield, and then the rain strip starts to run.

This kind of rain-scraping method, in the initial stage, because there is no water lubrication, it is not only easy to cause the abrasion of the wiper strip, but also easily causes the glass to be scratched and scratched.

Therefore, the inventors have developed a new wiper structure for this purpose.

Summary of the invention

It is an object of the present invention to overcome the deficiencies of the prior art and to provide a novel wiper.

To achieve the above object, the present invention adopts the following technical solutions:

A novel wiper includes a wiper strip, and the wiper strip is provided with a liquid passage chamber and a plurality of liquid outlets connected to the liquid passage chamber.

A further technical solution is that: the contact edge of the wiper strip and the surface to be scraped is two; a liquid storage tank is disposed between the two contact edges; and the bottom of the liquid storage tank is provided with the Several outlets.

A further technical solution is as follows: further comprising a fixing bracket for fixing the wiper strip, and a rotating bracket detachably coupled with the fixing bracket; the rotating bracket is provided with a liquid supply pipe connected to the liquid passage chamber.

A further technical solution is that the bottom surface of the wiper strip is a flat surface and is coupled to the fixing bracket.

A further technical solution is that the liquid supply pipe is connected with the wiper supply pump pipe.

A further technical solution is that the contact edge is a pointed edge, a circular edge or a strip contact.

A further technical solution is that the height of the contact edge to the bottom surface is 0.5 to 1.2 times the width; the width of the liquid storage tank is 0.3 to 0.5 times the width of the wiper strip.

A further technical solution is: the wiper strip is a rubber strip; the fixed bracket is a curved strut, the middle is coupled with the rotating bracket, and the two ends are coupled with the wiper strip; the two ends of the fixing bracket are further provided There is a small curved struts, and the two ends of the curved small struts are fixed with the wiper strip.

A further technical solution is as follows: the liquid passage chamber is two, and the liquid outlet connected to the liquid passage chamber is located at two sides of the wiper strip; the cross-sectional shape of the wiper strip is triangular; The cross-sectional shape of the cavity is a long waist shape; the liquid outlet is located at a bottom edge of the side which is in contact with the surface to be scraped.

A further technical solution is: further comprising a wiper motor for driving the rotating bracket, a wiper driving circuit electrically connected to the wiper motor, and a controller electrically connected to the wiper driving circuit, wherein the controller further Connected with a wiper control handle and a wiper pump drive circuit, the wiper pump drive circuit is electrically connected to the wiper pump; and further includes a plurality of water immersion sensors connected to the controller; the water immersion sensor is disposed at The outermost outlet port; when the plurality of water immersion sensors are turned on, the controller outputs a control signal of the wiper control handle to the wiper drive circuit; when the plurality of water immersion sensors are not fully turned on, the controller After receiving the control signal of the wiper control handle, the control signal is output to the wiper pump drive circuit, and the wiper pump drive circuit outputs current to the wiper pump, and the wiper pump starts to work, and the wiper water is sent to the wiper strip. The liquid-passing chamber and the plurality of water immersion sensors are all turned on, and the controller outputs a control signal to the wiper drive circuit, and the wiper drive circuit drives the wiper motor to work.

The invention has the beneficial effects compared with the prior art: the invention adopts a structure in which a liquid outlet is provided at the wiper strip, so that the wiper strip can provide a lubricating liquid while swinging, and the rain-free state is reduced. The dry grinding condition during the initial swing reduces the wear of the wiper strip and the glass and improves the service life of the wiper product. In addition, the wiper strip adopts two contact edges, which can effectively prevent the slippage; in addition, the glass cleaning water which reduces the friction and cleaning effect is sprayed out from the wiper strip, so that the wiper strip can always be lubricated. The state reduces friction and effectively reduces the noise of the wiper to reduce the impact on the driver and help improve the car environment. It is also possible to use a water immersion sensor for automatic supply of wiper water and intelligent control of the wiper.

The invention is further described below in conjunction with the drawings and specific embodiments.

DRAWINGS

1 is a schematic plan view showing a first embodiment of a novel wiper according to the present invention;

Figure 2 is a schematic cross-sectional view of the wiper strip of the embodiment shown in Figure 1;

Figure 3 is a block diagram of the circuit in the embodiment shown in Figure 1;

4 is a schematic cross-sectional view of a wiper strip according to a second embodiment of a novel wiper according to the present invention.

Reference numeral

10 wiper strip 11 liquid passage chamber

12 liquid outlet 13 pointed edge

14 reservoir 20 fixing bracket

30 rotating bracket 31 liquid supply tube

40 curved small pole

10A wiper strip 11A liquid passage chamber

12A outlet 60 wiper motor

61 wiper drive circuit 70 controller

71 wiper control handle 72 wiper pump drive circuit

73 wiper pump 80 water immersion sensor

detailed description

In order to more fully understand the technical content of the present invention, the technical solutions of the present invention are further described and illustrated in conjunction with the specific embodiments, but are not limited thereto.

As shown in FIG. 1 to FIG. 2, a novel wiper includes a wiper strip 10, and a wiper strip 10 is provided with a liquid passage 11 and a plurality of liquid discharges communicating with the liquid passage chamber 11 Port 12. The contact edge of the wiper strip 10 with the scraped surface (such as the automobile front window) is two pointed edges 13; between the two pointed edges 13 is provided a liquid storage tank 14; the bottom of the liquid storage tank 14 is provided The plurality of liquid outlets 12 are described.

Also included is a fixing bracket 20 for fixing the wiper strip 10, and a rotating bracket 30 detachably coupled to the fixing bracket 20; the rotating bracket 30 is provided with a liquid supply pipe 31 communicating with the liquid passage chamber 11. The wiper strip 10 is a rubber strip; the fixed bracket 20 is an arc-shaped strut, and the middle is coupled with the rotating bracket 30. The two ends of the fixing bracket are further provided with a curved small strut 40, and both ends of the curved small strut 40 are rained The wiper strip 10 is fixed.

The bottom surface of the wiper strip 10 is a flat surface and is coupled to the fixing bracket 20. The liquid supply pipe 31 is coupled to the wiper supply pump pipe. Among them, the wiper strip is a rubber material.

The optimum size for the wiper strip is that the height from the contact edge to the bottom surface is 0.5 to 1.2 times the width; the width of the liquid storage tank is 0.3 to 0.5 times the width of the wiper strip.

The wiper strip can be subjected to a continuous extrusion stretch forming process and then cut to the desired length. After cutting, the liquid outlet (usually a circular hole shape) is processed; the ends of the liquid passage are blocked by rubber stoppers.

As shown in FIG. 3, a wiper motor 60 for driving the rotating bracket 30, a wiper driving circuit 61 electrically connected to the wiper motor 60, and a controller 70 electrically connected to the wiper driving circuit 61 are further included. The controller 70 is further connected with a wiper control handle 71 (provided in the cab), a wiper pump drive circuit 72, the wiper pump drive circuit 72 is electrically connected to the wiper pump 73, and further includes a plurality of connected to the controller 70. The water immersion sensor 80 (a total of four water immersion sensors) are respectively disposed in the outermost outlets of the two wiper strips of the automobile; when the four water immersion sensors are all turned on (indicating that it is in a rainy state, the glass When the driver operates the wiper control handle 71, the controller 70 outputs a control signal of the wiper control handle 71 to the wiper drive circuit 61, and the wiper operates normally to scrape the rainwater on the glass surface. When the four water immersion sensors are not turned on (indicating that they are in a water-free state, if the wiper action is activated, the glass surface will be damaged and the wiper strip will be damaged), when the driver operates the wiper control handle 71, the controller 70, after receiving the control signal of the wiper control handle, first output a control signal to the wiper pump drive circuit 72, the wiper pump drive circuit 72 outputs current to the wiper pump 73, the wiper pump 73 starts to work, and the wiper water is sent to After the four water immersion sensors are turned on in the liquid passing chamber 11 in the wiper strip 10, the controller 70 outputs a control signal to the wiper drive circuit 61, and the wiper drive circuit 61 drives the wiper motor 60 to operate. Among them, the water immersion sensor plays a role in detecting whether there is water on the surface of the glass, and can also function to detect that the wiper water is sent to both ends of the wiper strip, and the two can satisfy one condition. This reduces the complexity of the operation. After the wiper control handle is activated, the wiper first determines whether there is water on the glass surface, or whether the liquid passage in the wiper strip is full of wiper water.

In actual use, it may be light rain. The water immersion sensor on the wiper strip will detect water, but the water does not have enough lubrication. At this time, a wiper manual button connected to the controller can be added. , to manually choose to provide wiper water for the wiper strip. It is also possible to further add a speed control circuit connected to the controller for the wiper pump, and the speed control circuit is provided with a speed control handle so that the flow rate of the wiper water provided for the wiper strip can be adjusted. This structure is suitable for foggy days without rain, or driving environment of dust, no rainwater flows down the glass, and it is necessary to scrape the fog or dust on the glass all the time. The conventional wiper can only be realized by pressing the wiper control handle for a long time, and the wiper speed and the water supply amount cannot be adjusted; and the product of the invention is quite convenient to operate in this case, and the speed is adjusted after the handle is activated. It's easy to use, simple and practical.

In the second embodiment shown in FIG. 4, two liquid passing chambers 11A are used, and the liquid outlets 12A connected to the liquid passing chamber 11A are located on both sides of the wiper strip 10A; the cross-sectional shape of the wiper strip 10A is a triangular shape; the cross-sectional shape of the liquid-passing chamber is a long waist; the liquid outlet is located at a bottom edge of the side that is in contact with the surface to be scraped. The advantage of this structure is that the wiper water flowing out from the liquid outlet directly acts on the outer side of the wiper strip, directly acts on the working surface of the wiper strip, reduces the friction, and can save the electricity of the wiper motor. The amount can also save water (glass clean water) and ensure that any lubricating water will adhere to the working surface of the wiper strip. The difference is that there are two liquid-passing chambers, and there are two wiper pumps; the two wiper pumps work separately, and when the wiper motor is reversed, the working state of the two wiper pumps is switched at the same time. The intelligent control can be performed in conjunction with the water immersion sensor in the embodiment of FIG.

In other embodiments, the contact edge may also be a circular arc edge or a strip contact surface, but the effective contact surface width is preferably less than 3 mm. In other embodiments, the wiper strip can also be made of other materials, such as a plastic material having a certain flexibility and toughness.

In other embodiments, the fixing bracket may also adopt the same shape as the wiper strip, and adopt a fixing manner close to the wiper strip.

In summary, the present invention adopts a structure in which a liquid outlet is provided at the wiper strip, so that the wiper strip can provide a lubricating liquid while swinging, thereby reducing dry grinding at the initial swing in a rainless state. Reduces the wear of wiper strips and glass, increasing the life of wiper products. In addition, the wiper strip adopts two contact edges, which can effectively prevent the slippage; in addition, the glass cleaning water which reduces the friction and cleaning effect is sprayed out from the wiper strip, so that the wiper strip can always be lubricated. The state reduces friction and effectively reduces the noise of the wiper to reduce the impact on the driver and help improve the car environment.

The above technical description of the present invention is further described by way of example only, and is not to be understood by the reader, but the embodiments of the present invention are not limited thereto, and any technology extending or re-creating according to the present invention is subject to the present invention. protection of. The scope of the invention is defined by the claims.

Claims

A novel wiper includes a wiper strip, characterized in that the wiper strip is provided with a liquid passage chamber and a plurality of liquid outlets connected to the liquid passage chamber.
A novel wiper according to claim 1, wherein the wiper strip has two contact edges with the surface to be scraped; and a liquid storage tank is disposed between the two contact edges; The plurality of liquid outlets are provided at the bottom of the liquid storage tank.
A novel wiper according to claim 1 or 2, further comprising a fixing bracket for fixing the wiper strip, and a rotating bracket detachably coupled to the fixing bracket; the rotating bracket is provided with The liquid supply pipe is connected to the liquid passage.
A novel wiper according to claim 3, wherein the bottom surface of the wiper strip is planar and coupled to the fixed bracket.
A novel wiper according to claim 4, wherein said liquid supply pipe is coupled to a wiper supply pump pipe.
A novel wiper according to claim 2, wherein said contact edge is a pointed edge, a circular edge or a strip contact.
A novel wiper according to claim 2, wherein said contact edge to bottom surface has a height of 0.5 to 1.2 times the width; and said reservoir has a width of 0.3 to 0.5 times the width of the wiper strip.
A novel wiper according to claim 3, wherein the wiper strip is a rubber strip; the fixing bracket is an arc-shaped strut, the middle is coupled with the rotating bracket, and both ends are coupled with the wiper strip; The two ends of the fixing bracket are also provided with small curved struts, and the two ends of the curved small struts are fixed with the wiper strip.
A novel wiper according to claim 1, wherein the liquid passing chamber is two, and the liquid outlet connected to the liquid passing chamber is located at two sides of the wiper strip; The cross-sectional shape is a triangle; the cross-sectional shape of the liquid-passing chamber is a long waist shape; and the liquid outlet is located at a bottom edge portion of the side which is in contact with the surface to be scraped.
A novel wiper according to claim 5, further comprising a wiper motor for driving the rotating bracket, a wiper driving circuit electrically connected to the wiper motor, and electrically connected to the wiper driving circuit. a controller, the controller is further connected with a wiper control handle and a wiper pump drive circuit, wherein the wiper pump drive circuit is electrically connected to the wiper pump; and further comprises a plurality of water immersion sensors connected to the controller The water immersion sensor is disposed in the outermost outlet port; when the plurality of water immersion sensors are turned on, the controller outputs a control signal of the wiper control handle to the wiper drive circuit; When the sensor is not fully turned on, after receiving the control signal of the wiper control handle, the controller outputs a control signal to the wiper pump drive circuit, and the wiper pump drive circuit outputs current to the wiper pump, and the wiper pump starts working and transports. The wiper water reaches the liquid passage in the wiper strip, and the plurality of water immersion sensors are all turned on, and the controller outputs a control signal to the wiper drive circuit, and the wiper drive circuit drives the wiper motor to work.