WO2017067296A1

WO2017067296A1 - Windshield cleaning device, cleaning system thereof, cleaning method, and vehicle

Info

Publication number: WO2017067296A1
Application number: PCT/CN2016/094020
Authority: WO
Inventors: 万永中; 刘梅; 朱树礼
Original assignee: 北汽福田汽车股份有限公司
Priority date: 2015-10-23
Filing date: 2016-08-08
Publication date: 2017-04-27
Also published as: CN105346514B; CN105346514A

Abstract

A windshield cleaning device, a cleaning system thereof, a cleaning method, and a vehicle. The windshield cleaning device comprises: a windshield wiper assembly (10), comprising an ejection channel (11); a main conveying pipe (20), connected to the ejection channel (11) and provided with a booster pump (21); a first liquid storage tank (50), in which a first liquid for cleaning the windshield is stored; a first conveying pipe, communicated with the first liquid storage tank (50) and the main conveying pipe (20); a second liquid storage tank (30), in which a second liquid for enhancing surface adhesion force of the windshield and a third liquid having hydrophobicity are stored; and a second conveying pipe, communicated with the second liquid storage tank (30) and the main conveying pipe (20). The booster pump (21) selectively conveys the first liquid, the second liquid or the third liquid into the ejection channel (11). The windshield cleaning device, the cleaning system thereof and the cleaning method can resolve the problem of affecting sight of a driver when a windshield wiper is used to wipe liquid in the prior art.

Description

Windshield cleaning device and cleaning system thereof, cleaning method and vehicle

Technical field

The present invention relates to the field of automobile manufacturing, and in particular to a windshield cleaning device, a cleaning system thereof, a cleaning method, and a vehicle.

Background technique

One of the risk factors for driving in the wind and rain is that the windshield has a poor line of sight, which prevents the driver from clearly observing the road. In the prior art, the solution to the problem of the sight line of the windshield in the wind and rain is that the wiper is used to continuously scrape the liquid. However, the use of a wiper to wipe the liquid also affects the driver's line of sight.

Summary of the invention

The main object of the present disclosure is to provide a windshield cleaning device, a cleaning system thereof, a cleaning method, and a vehicle to solve the problem in the prior art that the wiper liquid is used to affect the driver's line of sight.

In order to achieve the above object, according to an aspect of the present disclosure, a windshield cleaning apparatus is provided, comprising: a wiper assembly including an injection passage; a main delivery line, a downstream end of the main delivery line Connected to the injection passage, the main conveying line is provided with a boosting pump; a first liquid storage tank for storing the first liquid for cleaning the windshield; the first conveying a first delivery line connecting the first liquid storage tank and the main delivery line; a second liquid storage tank, the second liquid storage tank is provided with a first liquid storage chamber independent of each other a second liquid storage chamber for storing a second liquid capable of enhancing surface adhesion of the windshield, the second liquid storage chamber for storing a third liquid having hydrophobicity; a second delivery line connecting the second liquid storage tank and the main delivery line, the second delivery line including a first branch And a second branch, the first reservoir is in communication with the main delivery line through the first branch, and the second reservoir passes through the second branch and the main delivery tube The first communication line and the second delivery line are connected in parallel to the upstream end of the main delivery line, and the booster pump selectively connects the first liquid storage tank The first liquid, the second liquid or the third liquid in the second liquid storage tank is delivered into the injection passage.

Based on the above technical solution, the present disclosure further provides a windshield cleaning system, wherein the windshield cleaning system includes a windshield cleaning device provided by the present disclosure, and a control device for controlling the windshield Control device of the working mode, wherein the working mode comprises a first working mode, a second working mode and a third working mode, wherein when the cleaning device operates in the first working mode, the control device controls the a booster pump delivering the first liquid in the first reservoir to the injection passage; when the cleaning device is operated in the second mode of operation, the control device controls the increase a pressure pump sequentially delivers the second liquid and the third liquid in the second liquid storage tank into the injection passage; when the cleaning device operates in the third operation mode, the control The device controls the booster pump to sequentially deliver the first liquid in the first liquid storage tank, the second liquid in the second liquid storage tank, and the third liquid to the injection passage Inside.

Based on the above technical solution, the present disclosure also provides a vehicle, wherein the vehicle includes a cleaning system for a windshield provided by the present disclosure.

According to another aspect of the present disclosure, a method of cleaning a windshield is provided, the method comprising the steps of: providing a first liquid for cleaning the windshield and/or different from the first liquid a fourth liquid that cleans the windshield by the wiper assembly using the first liquid and/or the fourth liquid; S2: providing a second liquid capable of enhancing surface adhesion of the windshield a wiper assembly coating the second liquid on a surface of the windshield; S3: providing a third liquid having hydrophobicity, the third liquid being coated by the wiper assembly On the surface of the windshield.

The core technical idea of the present disclosure is to form a hydrophobic film on the outer surface of the windshield, so that raindrops dripping onto the windshield can slide down by their own gravity in the rainy day, thereby avoiding the use of a wiper. The windshield is continuously scraped to provide a clear view of the driver while avoiding affecting the driver's line of sight. The windshield cleaning device, the windshield cleaning system, the vehicle including the windshield cleaning system, and the windshield cleaning method provided by the present disclosure can embody the above technical concept.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

1 shows a schematic view of a piping structure of a windshield cleaning system in accordance with an embodiment of the present disclosure, in which a windshield cleaning apparatus according to an embodiment of the present disclosure is illustrated;

2 shows a schematic structural view of a wiper assembly in a windshield cleaning device in accordance with an embodiment of the present disclosure.

Wherein, the above figures include the following reference numerals:

10, wiper assembly; 11, injection channel;

111, a first temperature sensor; 112, a second normally open valve;

12. Wiper arm; 13. Wiper motor;

14. Wiper blade; 20, main conveying pipeline;

21, a booster pump; 22, a first heat exchanger;

23, a first auxiliary heater; 24, a first normally open valve;

25, the filter; 26, the first control valve;

30. The second liquid storage tank; 31. The first branch control valve;

32. The second branch control valve; 33. The third branch control valve;

40, air compression pipeline; 41, air compressor;

42. Normally closed valve; 43. Second heat exchanger;

44, a pressure reducing valve; 45, a second auxiliary heater;

46, the total valve; 47, diverter valve;

50, a first liquid storage tank; 51, a second temperature sensor;

52, the first liquid storage tank heater; 53, agitator;

54, the first liquid storage tank plus liquid port; 100, intelligent controller.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the drawings and embodiments.

In addition, in the present disclosure, the terms "upstream" and "downstream" are used in the context of the flow direction of the liquid, and are used for the purpose of explaining and explaining the present disclosure, and should not be used. Understood as a limitation.

Before describing in detail the specific embodiments of the present disclosure, it should be noted that the smart controller 100 and the first control valve 26, the first temperature sensor 111, the second normally open valve 112, and the first are briefly shown in FIG. Schematic diagram of the connection of the auxiliary heater 23 and the like. FIG. 1 does not completely show the connection form between all the components and the intelligent controller 100. For example, the connection of the air compressor 41 to the intelligent controller 100 is not shown in FIG. Form, but the air compressor 41 and the intelligent controller 100 are interconnected.

In one aspect, in accordance with an embodiment of the present disclosure, a windshield cleaning apparatus is provided. Referring to the embodiment shown in Figures 1 and 2, the windshield cleaning apparatus includes a wiper assembly 10 including an injection passage 11 and a main delivery line 20 downstream of the main delivery line 20. The end is connected to the injection passage 11, and the main delivery line 20 is provided with a booster pump 21; a first liquid storage tank 50 for storing the windshield for cleaning the windshield First liquid a first delivery line connecting the first liquid storage tank 50 and the main delivery line 20; a second liquid storage tank 30, wherein the second liquid storage tank 30 is provided with a mutual a first first reservoir chamber and a second reservoir chamber for storing a second liquid capable of enhancing surface adhesion of the windshield, the second reservoir chamber for storing a third liquid having a hydrophobicity; a second delivery line communicating with the second reservoir 30 and the main delivery line 20, the second delivery line including the first branch And a second branch, the first reservoir chamber is in communication with the main delivery line 20 through the first branch, and the second reservoir chamber passes through the second branch and the main delivery tube The road 20 is connected; wherein the first conveying line and the second conveying line are connected in parallel to the upstream end of the main conveying line 20, and the boosting pump 21 selectively connects the first liquid storage The first liquid in the tank 50, the second liquid or the third liquid in the second liquid storage tank 30 is delivered into the injection passage 11. In addition, referring specifically to FIG. 2, the wiper assembly 10 further includes a wiper motor 13, a wiper arm 12, and a wiper blade 14, the wiper blade 14 is coupled to the wiper arm 12, and the wiper motor 13 drives the wiper The arm 12 swings to drive the wiper blade 14 to wipe the windshield. The line of the injection passage 11 is installed along the wiper arm 12, and the outlet of the injection passage 11 is provided on the wiper blade 14 (the outlet may be the port of the line of the injection passage 11, or may be the wiper blade 14). The upper spout is provided, and the wiper blade 14 is provided with an inner cavity, the pipe of the injection passage 11 is in communication with the inner cavity, and the liquid is filled out of the inner cavity and then ejected by the spout), preferably, the outlet array of the injection passage 11 is distributed. On the wiper blade 14, and the outlet faces the front windshield, i.e., the showerhead on the wiper blade 14 is a microfluidic array showerhead. The A interface and the B interface shown in FIG. 1 are connected to the A interface and the B interface shown in FIG. 2, respectively. Thereby, the liquid flowing through the injection passage 11 can be ejected onto the windshield through the spout opened in the wiper blade 14.

Therefore, in the cleaning device for the windshield provided according to the embodiment of the present disclosure, the second liquid and the third liquid can be sequentially sprayed onto the windshield by the booster pump 21, the delivery line, and the injection passage 11. Since the second liquid has an effect of enhancing the surface adhesion of the windshield, it is possible to increase the adhesion of the third liquid having hydrophobicity on the surface of the windshield, After the third liquid is sprayed onto the windshield, the wiper blade 14 is scraped back and forth, and the third liquid can be coated on the outer surface of the windshield, thereby being outside the windshield. A hydrophobic film is formed on the surface. In this case, when the raindrop falls on the windshield, it does not stay too much on the windshield, but can naturally slide down by its own gravity. The clarity of the driver's field of view no longer needs to be maintained by the wiper arm 12 and the wiper blade 14 for a long time back and forth, and can greatly improve the driver's visual field clarity and improve the vehicle. Driving safely in rainy weather. In addition, since it is no longer necessary to swing back and forth by the wiper arm 12 and the wiper blade 14 for a long time, the wiper motor 13 does not need to work for a long time, and the green color is environmentally friendly. In addition, the windshield cleaning device provided by the present disclosure can also reduce the maintenance frequency of the windshield of the vehicle, thereby correspondingly extending the life of the windshield.

In a preferred embodiment of the present disclosure, the second liquid storage tank 30 is further provided with a third liquid storage chamber independent of the first liquid storage chamber and the second liquid storage chamber, and the third liquid storage chamber is provided. And storing a fourth liquid for cleaning the windshield, the fourth liquid is different from the first liquid, and the second conveying pipeline further includes a third branch, wherein the third liquid storage chamber passes through the The third branch communicates with the main delivery line 20, wherein the booster pump 21 also selectively delivers a fourth liquid within the second reservoir 30 to the injection passage 11.

When there is little or no dust and/or other dirt on the outer surface of the windshield, if the vehicle needs to travel in rainy weather, then only the second and third liquids need to be sequentially delivered by the booster pump 21 to It is sufficient in the injection passage 11. However, when a certain amount of dust and/or other dirt accumulates on the outer surface of the windshield, it is necessary to clean the windshield by the first liquid and/or the fourth liquid before transporting the second liquid to the injection passage 11. The glass, when spraying the second liquid onto the windshield, ensures that the active ingredient in the second liquid contacts the surface of the windshield, thereby causing the third liquid to be sprayed and scraped on the windshield to form The hydrophobic film has good coherence. The first liquid may be a car windshield washer fluid (for example, glass water composed of water, alcohol, ethylene glycol, corrosion inhibitor, etc.), and the fourth liquid may be pure water. This kind In this case, when there is little dust and/or other dirt on the outer surface of the windshield, the windshield can be simply cleaned with pure water only; dust and/or other on the outer surface of the windshield When there is a lot of dirt, you can use the car windshield washer fluid to deeply clean the windshield. In this case, in order to avoid certain chemical components in the windshield washer fluid and the active components in the second liquid. The chemical reaction reduces the effect of the second liquid, and after the deep cleaning of the windshield by the automobile windshield cleaning solution, the windshield is cleaned twice with pure water before the second liquid, thereby washing away Chemicals that remain on the surface of the windshield during deep cleaning. Further, the second liquid may be a commercially available glass adhesion promoter, and the third liquid may be commercially available superhydrophobic.

Referring to FIG. 1, a first control valve 26 is disposed on the first delivery line to control delivery of the first liquid in the first reservoir 50. For example, the first control valve 26 may be an on-off valve. It may also be a flow control valve; correspondingly,

branch control valves

31, 32, 33 are provided on each branch to control the second liquid storage tank 30 in the first liquid storage chamber and the second liquid storage, respectively. The delivery of the second liquid A, the third liquid B, and the fourth liquid C in the chamber and the third liquid storage chamber, for example, the branch control valve may be an on-off valve or a flow control valve. The first control valve 26 and the respective

branch control valves

31, 32, 33 may be correspondingly controlled in any suitable manner, for example, in a cleaning system for a windshield provided in accordance with embodiments of the present disclosure (hereinafter As will be described in detail), the first control valve 26 and each of the

branch control valves

31, 32, 33 can be electrically connected to a control device (for example, the intelligent controller 100), and the corresponding first control valve 26, the first branch is controlled by the control device. Opening, closing or flow of the road control valve 31, the second bypass control valve 32, and the third bypass control valve 33, by the booster pump 21, to achieve the desired first liquid, second liquid A, third liquid B or Delivery of the fourth liquid C.

In a specific embodiment provided by the present disclosure, the liquid activity of the second liquid A and/or the third liquid B used requires a certain temperature environment, for example, when the temperature of the liquid is 20 ° C to 35 ° C, the second liquid The liquid activity of A and the third liquid B is good. Therefore, the first heat exchanger 22 may be disposed on the main delivery line 20 to heat the liquid flowing through the main delivery line 20, for example, when the second liquid A And/or when the third liquid B flows through the main delivery line 20, the second liquid A and/or the third liquid B may be heated to a desired temperature by the first heat exchanger 22. In addition, in areas where the weather is cold but does not cause the liquid to freeze, the application of the disclosed technology in rainy days can automatically drip the rain liquid falling on the outer surface of the windshield, but also in the windshield. A frost mist is formed on the inner surface to blur the line of sight. Therefore, the fluid flowing through the main delivery line 20 can be heated by the first heat exchanger 22 to avoid spraying and/or wiping the liquid on the outer surface of the windshield. A frost mist is generated on the inner surface of the windshield during the process. In order to allow the heated liquid to reach the injection passage 11 as early as possible, the first heat exchanger 22 may be located downstream of the boost pump 21. To save energy, the first heat exchanger 22 can be in communication with the exhaust line of the vehicle to utilize the exhaust of the vehicle as a heat source.

In the above embodiment, the first temperature sensor 111 may be disposed on the injection passage 11 to detect the temperature of the liquid flowing through the injection passage 11, and the flow rate of the vehicle exhaust gas in the first heat exchanger 22 is The temperature of the liquid in the injection passage 11 detected by the first temperature sensor 111 is inversely proportional. For example, the first heat exchanger 22 may be an in-line heater provided with a flow regulating valve to adjust the flow rate adjustment according to the temperature of the liquid in the injection passage 11 detected by the first temperature sensor 111. valve. In addition, for example, in the cleaning system of the windshield provided according to the embodiment of the present disclosure, the flow regulating valve may be a solenoid valve, and the electromagnetic valve and the first temperature sensor 111 are electrically connected to the intelligent controller 100, thereby passing The intelligent controller 100 is capable of realizing intelligent control of the flow regulating valve according to the temperature of the liquid in the injection passage 11 detected by the first temperature sensor 111.

In the specific embodiment provided by the present disclosure, in the case where the first heat exchanger 22 utilizes the heat of the vehicle exhaust gas as the heat source, since the heat of the vehicle exhaust gas is sufficiently sufficient, it is necessary to control the flow rate of the vehicle exhaust gas in the first heat exchanger 22. So that the liquid passing through the first heat exchanger 22 is heated to a desired temperature. However, in some cases, passing only the first heat exchanger 22 is not sufficient to heat the liquid flowing through the main delivery line 20 to the desired temperature. Therefore, the first auxiliary heater 23 (for example, an electric heater) may be disposed on the main conveying line 20, and in order to prevent the heated liquid from flowing through The long main delivery line 20 is then cooled, the first auxiliary heater 23 is located downstream of the first heat exchanger 22, preferably the first auxiliary heater 23 is adjacent to the downstream end of the main delivery line 20, the first auxiliary heater 23 is turned on or off according to the temperature of the liquid in the ejection passage 11 detected by the first temperature sensor 111. It should be noted that when the temperature of the liquid in the injection channel 11 detected by the first temperature sensor 111 does not reach the required temperature, the flow rate of the vehicle exhaust gas in the first heat exchanger 22 can be adjusted while maintaining The first auxiliary heater 23 is turned on to ensure that the heated liquid can reach the desired temperature. For the opening of the first auxiliary heater 23, for example, in the cleaning system of the windshield provided according to the embodiment of the present disclosure, the first auxiliary heater 23 may be electrically connected to the intelligent controller 100 to pass the intelligent controller The 100 intelligently controls the opening and closing of the first auxiliary heater 23.

In addition, when the temperature in the late winter and early spring is low, in order to make the washing liquid in the first liquid storage tank 50 be rapidly heated to utilize the first liquid in the first liquid storage tank 50 in a short time, the first The liquid storage tank 50 may be provided with a second temperature sensor 51, a first liquid storage tank heater 52 and an agitator 53, and the second temperature sensor 51 is for detecting the temperature of the liquid in the first liquid storage tank 50, the first storage The liquid tank heater 52 is for heating the first liquid in the first liquid storage tank 50, the agitator 53 is for stirring the first liquid in the first liquid storage tank 50, and the first liquid storage tank heater 52 and the agitator 53 is turned on or off according to the temperature of the liquid in the first liquid storage tank 50 acquired by the second temperature sensor 51. For example, referring to FIG. 1, in the cleaning system of the windshield provided according to the embodiment of the present disclosure, the second temperature sensor 51, the first liquid storage tank heater 52, and the agitator 53 are all combined with the smart controller 100. The connection is automatically controlled after the vehicle is started by the program set in the intelligent controller 100. While the first reservoir heater 52 heats the liquid, the agitator 53 agitates to increase the rate at which the liquid temperature rises. And the first reservoir heater 52 is automatically controlled by the temperature data detected and fed back by the second temperature sensor 51. When the amount of liquid in the first liquid storage tank 50 is insufficient, liquid may be added from the first liquid storage tank plus liquid port 54 to replenish the liquid amount.

In order to utilize the liquid in the first liquid storage tank 50 or the second liquid storage tank 30 more safely and efficiently, A filter 25 may be disposed on the main delivery line 20 to filter impurities in the liquid to prevent clogging of the microfluidic array nozzle described above. For example, the filter 25 can be placed downstream of the booster pump. Since the liquid in the second liquid storage tank 30 is highly cleaned, it is generally unnecessary to perform impurity filtration, but the liquid in the first liquid storage tank 50 has more impurities, and the first liquid storage tank 50 is utilized. Impurity filtration must be performed during the liquid, and therefore, the filter 25 can also be disposed on the first delivery line and upstream of the first control valve 26.

In a specific embodiment provided by the present disclosure, the first liquid storage tank heater 52 can be used to heat and heat the washing liquid to maintain the first liquid at a suitable temperature, thereby avoiding the use of the cleaning block at any time in low temperature weather. When the wind glass causes the frost on the inner surface of the windshield. Since the liquid activity of the first liquid A and/or the second liquid B in the second liquid storage tank 30 requires a certain temperature, in order to improve the utilization efficiency of the thermal energy, the second liquid storage tank 30 can be closely attached to the first storage. The liquid tank 50 is disposed or directly inlaid on the first liquid storage tank 50. Thus, when the first liquid storage tank heater 52 heats the washing liquid, the heat of the washing liquid can be transferred to the second liquid storage tank 30 so that the temperature of the liquid therein rises. When it is necessary to utilize the liquid in the second liquid storage tank 30, the first heat exchanger 22 and the first auxiliary heater 23 are used to further increase the temperature of the liquid on the main delivery line 20 so that the liquid flows out of the injection passage 11. Has the best liquid activity.

Based on the above technical solution, according to a specific embodiment of the present disclosure, a windshield cleaning system is further provided, wherein the windshield cleaning system includes the windshield cleaning device provided by the present disclosure, and And a control device for controlling an operation mode of the cleaning device, wherein the working mode comprises a first working mode, a second working mode, and a third working mode as follows:

The control device controls the booster pump 21 to deliver the first liquid in the first liquid storage tank 50 to the injection passage 11 when the cleaning device operates in the first operation mode . Thereafter, the first liquid is ejected through the spout and sprinkled on the outer surface of the windshield, and with the wiping motion of the wiper blade 14, the outer surface of the windshield can be cleaned. It should be noted that the first working mode also serves as a conventional windshield cleaning mode.

The control device controls the booster pump 21 to sequentially transport the second liquid and the third liquid in the second liquid storage tank 30 when the cleaning device operates in the second operation mode Up to the injection passage 11. After the second liquid is delivered into the injection passage 11, the second liquid is ejected through the spout and sprinkled on the outer surface of the windshield, and can be coated with the windshield as the wiper blade 14 is scraped. On the outer surface of the glass, the outer surface of the windshield is coated with a region of the second liquid, which has strong adhesion. Thereafter, the third liquid is delivered into the injection passage 11, and the third liquid is ejected through the spout and sprinkled on the outer surface of the windshield, and can be coated with the wind as the wiper blade 14 is scraped. The outer surface of the glass corresponds to a region coated with the second liquid, and a hydrophobic film is formed on the region.

The control device controls the booster pump 21 to sequentially the first liquid and the second liquid storage in the first liquid storage tank 50 when the cleaning device operates in the third operation mode. The second liquid and the third liquid in the tank 30 are delivered into the injection passage 11. That is, the third working mode is a combination of the first working mode and the second working mode. Therefore, referring to the above description of the first working mode and the second working mode, it can be known that the cleaning device works in the third working mode. The process is: cleaning the outer surface of the windshield - applying a second liquid capable of enhancing the adhesion of the glass in the cleaning area of the outer surface of the windshield - applying a third liquid having hydrophobicity in the cleaning area, A hydrophobic film is formed.

Wherein, the cleaning device of the windshield is the cleaning device of the windshield in the above preferred embodiment (ie, the second liquid storage tank 30 is provided separately from the first liquid storage chamber and the second liquid storage chamber). In the case of the third reservoir chamber: the control device controls the booster pump 21 to sequentially perform the said in the second reservoir tank 30 when the cleaning device is operated in the second mode of operation The fourth liquid, the second liquid, and the third liquid are delivered into the injection passage 11. Among them, the role of the fourth liquid is to clean the windshield, for example, to clean the windshield from slight dirt. The control device controls the booster pump 21 to sequentially the first liquid and the second liquid storage in the first liquid storage tank 50 when the cleaning device operates in the third operation mode. The fourth liquid in the tank 30 The body, the second liquid, and the third liquid are delivered into the injection passage 11. Wherein, the function of the fourth liquid is to clean the chemical substance in the first liquid remaining on the windshield to prevent the chemical substance from reacting with the effective chemical component in the second liquid, thereby affecting the utility of the second liquid.

In a preferred embodiment of the present disclosure, the windshield cleaning system further includes means for evacuating the liquid in the main delivery line 20, in which different liquids are replaced in the main delivery line 20. When the gap and the cleaning device are in operation, the liquid remaining in the main delivery line 20 is discharged from the main delivery line 20 by the means for evacuating the liquid in the main delivery line 20. discharge. At least the liquid remaining in the main delivery line 20 can be discharged by the device after the gap of the liquid exchange in the main delivery line 20 and after the third liquid, for example, the liquid is discharged to the windshield through the injection channel 11. And/or, the liquid is returned to the corresponding reservoir or reservoir along the main delivery line 20 for recovery.

In the specific embodiment provided by the present disclosure, the above-described means for evacuating the liquid in the main delivery line 20 can be implemented in a variety of ways. Preferably, compressed air is used, correspondingly means for evacuating the liquid in the main delivery line 20 comprising: an air compression line 40, the first end of the air compression line 40 being open for air to enter The second end of the air compression line 40 is in communication with the main delivery line 20; the air compressor 41 is disposed on the air compression line 40; the normally closed valve 42 is disposed. On the air compression line 40 and downstream of the air compressor 41; wherein the normally closed valve 42 is controlled to open by the control device, and compressed air is introduced to pass the main delivery line 20 The remaining liquid is discharged from the main delivery line 20. The normally closed valve 42 is electrically connected to the control device.

In the specific embodiment provided by the present disclosure, the second end of the air compression line 40 may be connected to the downstream end of the main delivery line 20, and the connection of the main delivery line 20, the air compression line 40 and the injection channel 11 may be It is a three-way joint connection, and it can also be connected by a gas-liquid mixer. The apparatus for evacuating the liquid in the main delivery line 20 further includes: a first normally open valve 24, the first normally open valve 24 Disposed on the main delivery line 20 and downstream of the booster pump 21; a second normally open valve 112, the second normally open valve 112 is disposed on the injection passage 11. The recovery of the liquid in the main delivery line 20 or the discharge of the liquid in the ejection channel 11 can be achieved by controlling the sequence of closing and opening of the first normally open valve 24 and the second normally open valve 112. The first normally open valve 24 and the second normally open valve 112 are electrically connected to the control device.

When the air temperature is low, the compressed air needs to be heated to prevent the moisture in the air from condensing and adhering to the pipe wall to further freeze and thereby damage the pipeline, and therefore, for evacuating the main conveying pipe 20 The liquid apparatus may further include: a second heat exchanger 43 disposed on the air compression line 40 and located between the air compressor 41 and the normally closed valve 42, the second heat exchanger 43 and The vehicle's exhaust line is connected to utilize vehicle exhaust as a heat source to save energy. Wherein, the second heat exchanger 43 can be electrically connected to the control device to implement intelligent control.

Further, in a specific embodiment provided by the present disclosure, the means for evacuating the liquid in the main delivery line 20 may include a second auxiliary heater 45, and the second auxiliary heater 45 is disposed in the air compression tube The road 40 is located downstream of the second heat exchanger 43 for heating the compressed air. It should be noted that the second auxiliary heater 45 may be an electric heater capable of rapidly heating the compressed air. Like the first auxiliary heater 23, the second auxiliary heater 45 can also be electrically connected to the control device to achieve intelligent control.

In addition, since the vehicle exhaust is generally sufficient, the heated compressed air will have a higher temperature, and when the compressed air enters the main delivery line 20 and/or the injection passage 11, the main delivery line 20 and/or The injection passage 11 has a hidden danger of damage. Therefore, a portion of the air compression line 40 corresponding to the second heat exchanger 43 is divided into two parallel branches, and the second heat exchanger 43 is disposed in the two parallel branches. One of the branches, wherein the means for evacuating the liquid in the main delivery line 20 further comprises: a diverter valve 47 disposed on the other branch of the two parallel branches On the road, and used to control the flow of compressed air flowing through the branch. Therefore, the compressed air having a lower temperature can be compressed before the compressed air enters the second heat exchanger 43. A part of the flow is branched to be mixed with the compressed air of a higher temperature after passing through the second heat exchanger 43, and the amount of the compressed air which is partially branched is controlled by the diverter valve 47, and compressed air having a suitable temperature can be obtained. Wherein, the diverter valve 47 is electrically connected to the control device to implement intelligent control.

In the specific embodiment provided by the present disclosure, the first auxiliary heater 23 and the second auxiliary heater 45 may be separately provided, or may be disposed together in the cleaning device of the front windshield, and the first auxiliary heater 23 And the opening or closing of the second auxiliary heater 45 is controlled by the intelligent controller 100 according to the temperature data detected by the first temperature sensor 111, and the first auxiliary heating is respectively controlled under the control of the preset control strategy in the intelligent controller 100. The device 23 and the second auxiliary heater 45 are turned on or off.

Further, in a specific embodiment provided by the present disclosure, the means for evacuating the liquid in the main delivery line 20 may further include a pressure reducing valve 44 disposed on the air compression line 40 and Located between the air compressor 41 and the second heat exchanger 43. In addition, the air compression line 40 is further provided with a total valve 46. After the air compressor 41 completes the compression of the air, the air has a certain pressure energy, and then the pressure reduction is performed by the pressure reducing valve 44 to increase the flow rate of the compressed air, thereby improving The working efficiency of compressed air. The total valve 46 is utilized to facilitate the flow of compressed air through the pressure reducing valve 44 under reduced pressure.

Based on the above technical solution, the present disclosure also provides a vehicle, wherein the vehicle includes a windshield cleaning system provided by the present disclosure.

In another aspect, according to a specific embodiment of the present disclosure, a method of cleaning a windshield is provided, the method comprising the steps of:

S1: providing a first liquid for cleaning the windshield and/or a fourth liquid different from the first liquid, using the first liquid and/or the fourth liquid cleaning by the wiper assembly 10 The windshield;

S2: providing a second liquid capable of enhancing surface adhesion of the windshield, through the rain a brush assembly 10 coating the second liquid on a surface of the windshield;

S3: providing a third liquid having hydrophobicity, the third liquid being coated on the surface of the windshield by the wiper assembly 10.

Wherein, when only the first liquid is provided in step S1, the step S1 corresponds to the first working mode described above. When only the fourth liquid is supplied in step S1, the method corresponding to the combination of step S1 and step S2 and step S3 corresponds to the second operational mode described above. When the first liquid and the fourth liquid are simultaneously supplied in step S1, the method corresponding to the combination of step S1 and step S2 and step S3 corresponds to the third operational mode described above. Therefore, in order to avoid repetition, no further details are provided herein.

In a preferred embodiment of the present disclosure, the method of cleaning the windshield further includes step S0:

S0: after each of the steps S1 to S3 is completed, discharging the liquid remaining in the fluid line from the fluid line;

Wherein the fluid line is a line for the liquid to flow to the injection passage 11 of the wiper assembly 10, and includes an injection passage 11. Therefore, in conjunction with the above description, this step S0 corresponds to the above-mentioned "the gap of the liquid exchange in the main delivery line 20 and after the third liquid, the means for evacuating the liquid in the main delivery line 20" At least the liquid remaining in the main delivery line 20 is discharged, for example, the liquid is discharged to the windshield through the injection passage 11, and/or the liquid is returned to the corresponding liquid storage tank or reservoir along the main delivery line 20. In the liquid chamber, to recover." Therefore, in order to avoid repetition, it will not be repeated here.

Preferably, the second liquid in the present disclosure requires a certain temperature condition to achieve a better activity. When the liquid temperature is at a first predetermined temperature (for example, any temperature value within 20 ° C to 35 ° C), the activity of the second liquid is the most Preferably, therefore, in said step S2, said second liquid is heated to a first predetermined temperature before said second liquid is applied to the surface of said windshield.

Preferably, the second liquid in the present disclosure requires a certain temperature condition to achieve a better activity. When the liquid temperature is at a first predetermined temperature (for example, any temperature value within 20 ° C to 35 ° C), the activity of the second liquid is the most Well, therefore, in the step S3, the third liquid is coated on the windshield The third liquid is heated to a second predetermined temperature before the surface of the glass.

The above description is only a preferred embodiment of the present disclosure, and is not intended to limit the disclosure, and various changes and modifications may be made to the present disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

A windshield cleaning device, comprising:

a wiper assembly (10), the wiper assembly (10) comprising a spray channel (11);

a main delivery line (20), the downstream end of the main delivery line (20) is connected to the injection channel (11), the main delivery line (20) is provided with a booster pump (21);

a first liquid storage tank (50) for storing a first liquid for cleaning the windshield;

a first delivery line, the first delivery line communicating with the first reservoir (50) and the main delivery line (20);

a second liquid storage tank (30), wherein the second liquid storage tank (30) is provided with a first liquid storage chamber and a second liquid storage chamber independent of each other, the first liquid storage chamber for storing a second liquid adhered to the surface of the windshield, the second liquid storage chamber for storing a third liquid having hydrophobicity;

a second delivery line connecting the second liquid storage tank (30) and the main delivery line (20), the second delivery line including a first branch and a second branch The first liquid storage chamber communicates with the main delivery line (20) through the first branch, and the second liquid storage chamber passes through the second branch and the main delivery line ( 20) connected;

Wherein the first delivery line and the second delivery line are connected in parallel to the upstream end of the main delivery line (20), and the booster pump (21) selectively connects the first storage liquid A first liquid in the tank (50), a second liquid or a third liquid in the second liquid storage tank (30) is delivered into the injection passage (11).
The windshield cleaning device according to claim 1, wherein the second liquid storage tank (30) is further provided with a third portion independent of the first liquid storage chamber and the second liquid storage chamber. a liquid storage chamber for storing a fourth liquid for cleaning the windshield, the fourth liquid being different In the first liquid, the second delivery line further includes a third branch, and the third liquid storage chamber communicates with the main delivery line (20) through the third branch, wherein the A booster pump (21) also selectively delivers a fourth liquid within the second reservoir (30) into the injection passage (11).
The windshield cleaning device according to claim 2, wherein the first conveying pipe is provided with a first control valve (26), and each of the branches is provided with a branch control valve (31, 32). , 33).
A windshield cleaning apparatus according to claim 1, wherein

a first heat exchanger (22) is disposed on the main conveying line (20), the first heat exchanger (22) is located downstream of the boosting pump (21), and the first heat exchange The device (22) is in communication with the exhaust line of the vehicle to utilize the vehicle exhaust as a heat source; the injection passage (11) is provided with a first temperature sensor (111), and the vehicle exhaust in the first heat exchanger (22) The magnitude of the flow is inversely proportional to the level of the temperature of the liquid in the injection passage (11) detected by the first temperature sensor (111).
A windshield cleaning apparatus according to claim 4, wherein

The main delivery line (20) is further provided with a first auxiliary heater (23), the first auxiliary heater (23) is located downstream of the first heat exchanger (22);

The first auxiliary heater (23) is turned on or off according to the temperature of the liquid in the injection passage (11) detected by the first temperature sensor (111).
A windshield cleaning apparatus according to claim 1, wherein

The first liquid storage tank (50) is provided with a second temperature sensor (51), a first liquid storage tank heater (52) and a stirrer (53), and the second temperature sensor (51) is used for detecting The first The temperature of the liquid in the liquid storage tank (50) for heating the liquid in the first liquid storage tank (50), the agitator (53) being used for Stirring the liquid in the first liquid storage tank (50), and the first liquid storage tank heater (52) and the agitator (53) are obtained according to the second temperature sensor (51) The temperature of the liquid in a liquid storage tank (50) is turned on or off.
A windshield cleaning system, characterized in that the windshield cleaning system comprises a windshield cleaning device according to any one of claims 1-6, and a control device for controlling the windshield a control device of the working mode, wherein the working mode comprises a first working mode, a second working mode, and a third working mode,

The control device controls the booster pump (21) to deliver the first liquid in the first reservoir (50) to the first cleaning mode when the cleaning device is operated in the first mode of operation Inside the injection channel (11);

When the cleaning device is operated in the second mode of operation, the control device controls the booster pump (21) to sequentially apply the second liquid in the second reservoir (30) and the a third liquid is delivered into the injection channel (11);

When the cleaning device operates in the third mode of operation, the control device controls the booster pump (21) to sequentially apply the first liquid in the first reservoir (50), the The second liquid and the third liquid in the second liquid storage tank (30) are delivered into the injection passage (11).
A windshield cleaning system according to claim 7, wherein the windshield cleaning device is a windshield cleaning device according to claim 2 or 3.

When the cleaning device operates in the second mode of operation, the control device controls the booster pump (21) to sequentially apply the fourth liquid in the second reservoir (30), the a second liquid and the third liquid are delivered into the injection channel (11);

When the cleaning device operates in the third mode of operation, the control device controls the booster pump (21) to sequentially apply the first liquid in the first reservoir (50), the The fourth liquid, the second liquid, and the third liquid in the second liquid storage tank (30) are delivered into the injection passage (11).
A windshield cleaning system according to claim 7 or 8, wherein the windshield cleaning system further comprises means for evacuating the liquid in the main delivery line (20), When the gap of the different liquids is changed in the main delivery line (20) and the cleaning device is in operation, the main device is used to evacuate the liquid in the main delivery line (20) The liquid remaining in the transfer line (20) is discharged from the main transfer line (20).
A windshield cleaning system according to claim 9, wherein said means for evacuating liquid in said main delivery line (20) comprises:

An air compression line (40), the first end of the air compression line (40) is an open end, and the second end of the air compression line (40) is in communication with the main delivery line (20);

An air compressor (41), the air compressor (41) being disposed on the air compression line (40);

a normally closed valve (42) disposed on the air compression line (40) and located downstream of the air compressor (41);

Wherein, the normally closed valve (42) is controlled to be opened by the control device, and compressed air is introduced to discharge the liquid remaining in the main delivery line (20) from the main delivery line (20).
A windshield cleaning system according to claim 10, wherein a second end of said air compression line (40) is coupled to said downstream end of said main delivery line (20), said The apparatus for evacuating the liquid in the main delivery line (20) further includes:

a first normally open valve (24), the first normally open valve (24) being disposed on the main delivery line (20) and downstream of the booster pump (21);

a second normally open valve (112), the second normally open valve (112) is disposed on the injection passage (11);

Wherein, the control device controls the sequence of closing and opening of the first normally open valve (24) and the second normally open valve (112) to realize recovery of the liquid in the main conveying line (20) Or discharging the liquid in the injection passage (11).
A windshield cleaning system according to claim 10, wherein the means for evacuating the liquid in the main delivery line (20) further comprises:

a second heat exchanger (43) disposed on the air compression line (40) and located in the air compressor (41) and the normally closed valve (42) The second heat exchanger (43) communicates with the exhaust line of the vehicle to utilize the exhaust gas of the vehicle as a heat source.
A windshield cleaning system according to claim 12, wherein said means for evacuating the liquid in said main delivery line (20) further comprises:

A second auxiliary heater (45) is disposed on the air compression line (40) and downstream of the second heat exchanger (43).
The windshield cleaning system according to claim 12, characterized in that the portion of the air compression line (40) corresponding to the second heat exchanger (43) is divided into two parallel branches The second heat exchanger (43) is disposed on one of the two parallel branches, wherein the means for evacuating the liquid in the main delivery line (20) is further include:

a diverter valve (47), the diverter valve (47) being disposed on the other branch of the two parallel branches On the road, and used to control the flow of compressed air flowing through the branch.
A windshield cleaning system according to claim 12, wherein said means for evacuating the liquid in said main delivery line (20) further comprises:

A pressure reducing valve (44) is disposed on the air compression line (40) and between the air compressor (41) and the second heat exchanger (43).
A vehicle characterized by comprising the windshield cleaning system according to any one of claims 7 to 15.
A method of cleaning a windshield, the method comprising the steps of:

S1: providing a first liquid for cleaning the windshield and/or a fourth liquid different from the first liquid, using the first liquid and/or the fourth through the wiper assembly (10) Liquid cleaning the windshield;

S2: providing a second liquid capable of enhancing the surface adhesion of the windshield, the second liquid being coated on the surface of the windshield by the wiper assembly (10);

S3: providing a third liquid having hydrophobicity, the third liquid being coated on the surface of the windshield by the wiper assembly (10).
The method of cleaning a windshield according to claim 17, further comprising the step S0:

S0: after each of the steps S1 to S3 is completed, discharging the liquid remaining in the fluid line from the fluid line;

Wherein the fluid line is a line for the liquid to flow to the injection channel (11) of the wiper assembly (10), the line comprising the injection channel (11).
A method of cleaning a windshield according to claim 17, wherein In step S2, the second liquid is heated to a first predetermined temperature before the second liquid is coated on the surface of the windshield.
A method of cleaning a windshield according to claim 17, wherein in said step S3, said third liquid is heated before said third liquid is applied to said surface of said windshield The liquid reaches a second predetermined temperature.