High pressure air snow and rain isolation device for automobile

Abstract

The application discloses a high-pressure air snow and rain isolation device for a vehicle, which is provided with a strip-shaped matrix high-pressure sprayer arranged along the bottom end of a window glass, the matrix high-pressure sprayer is located outside the window glass and blows air to the window glass in a slanting side direction, and the matrix high-pressure sprayer is connected with a blower through a pipeline. The snow and rain isolation system can independently isolate snow and rain through the high-pressure air isolation device system, can automatically adjust air pressure, a spraying angle and the like according to the real-time snow and rain amount, realizes isolation of snow and rain during driving, and thus improves the driver's field of vision. The system can realize isolation of snow and rain for the front windshield glass and the side window glass of the driver and the front passenger. The system can realize dust removal before starting of the vehicle and periodic dust removal.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile intelligence, in particular to the automobile glass rain and snow removing technology. BACKGROUND

[0002] In order to obtain a good view during driving, a wiper structure on the front windshield glass is derived, which can simply clean the rain and other dirt on the glass.

[0003] The wiper currently includes ordinary wiper, water spraying wiper and air wiper. For example, the publication number is CN106985790A, the publication date is July 28, 2017, and the patent name is "a car equipped with a new wiper system". The publication discloses a car equipped with a new wiper system, which comprises a wiper, the wiper comprising a wiper arm and a wiper blade, the wiper arm and the wiper blade being fixedly connected; the wiper arm and / or the wiper blade is provided with a magnetic part. When the wiper is installed on the car, the magnetic parts on the A-pillar and the air inlet grille are also provided with magnetic parts, the magnetic parts on the wiper and the magnetic parts on the A-pillar and the air inlet grille have the same magnetism; the magnetic parts on the wiper and the magnetic parts on the A-pillar and the air inlet grille repel each other to generate repulsive force, so that the wiper will not touch the A-pillar and the air inlet grille.

[0004] The ordinary wiper sprays water through two nozzles on the car hood or front decorative plate, the water column is columnar and fan-shaped, the spraying is not uniform enough, and the driver's view is seriously affected in the moment when the water column is sprayed out and the wiper blade is not in action. Compared with the ordinary wiper, the water spraying wiper can save windshield washer, and the driver can get a clearer view, effectively reducing the safety hazards in the driving process of the vehicle. The air wiper uses the structure of the water spraying wiper, the air pressure is not large enough, and the effect of removing rain, snow and sand is not good.

[0005] The motor vehicle drives in rainy and snowy weather, the rearview mirror with heating can obtain a good rearview mirror view, but the driver's side and the front passenger's side windows will be attached with rain and snow, which seriously affects the view and causes serious influence on the lane changing and overtaking of the driver, and even endangers life. But there is no effective solution on the market SUMMARY

[0006] The technical problem to be solved by the present application is to realize a system capable of blowing air by using air pressure to isolate rain and snow on the glass.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is: a high-pressure air isolation rain and snow device for automobile, a strip-shaped matrix type high-pressure sprayer is arranged along the bottom end of the window glass, the matrix type high-pressure sprayer is located outside the window glass and blows air to the window glass in a diagonal side direction, and the matrix type high-pressure sprayer is connected with a blower through a pipeline.

[0008] The air blower is connected with the air inlet of the pressure tank through a normal pressure air duct, and the air outlet of the pressure tank is connected with the matrix high-pressure injector through a high-pressure air duct.

[0009] The matrix high-pressure injector is provided with two rows of injection holes, and the aperture of the upper row of injection holes is smaller than that of the lower row of injection holes, so that the air pressure of the upper air flow layer is greater than that of the lower air flow layer.

[0010] The angle between the injection direction of the upper row of injection holes and the glass is slightly greater than the angle between the injection direction of the lower row of injection holes and the glass.

[0011] The vehicle window glass includes a front windshield and a driver's side and a passenger's side window glass.

[0012] The air blower is an automobile air conditioner air blower.

[0013] The pressure tank is provided with an electric heating wire, and the control module is connected with and outputs a control signal to the electric heating wire.

[0014] The outside of the vehicle window is provided with a temperature and rainfall sensor for sensing the ambient temperature and whether it is raining, and the temperature and rainfall sensor is connected with and outputs a sensing signal to the control module, and when it is raining, the rain and snow isolation function is automatically started, the air blower is controlled to work, and after the rain stops, the rain and snow isolation function is closed, and the air blower is controlled to be closed.

[0015] When it is raining and the ambient temperature is lower than the set temperature, the electric heating wire is started when the rain and snow isolation function is started, and the electric heating wire is turned off when the rain and snow isolation function is turned off, the control module is connected with the vehicle central control, the vehicle central control is provided with a virtual setting button for starting or stopping the automatic starting of the rain and snow isolation function, and the vehicle central control is provided with a virtual button for manually starting the rain and snow isolation function.

[0016] The rain and snow isolation system can independently isolate the rain and snow by high-pressure air, and can automatically adjust the air pressure, the injection angle, and realize the isolation of the rain and snow during driving, so as to improve the driver's field of view. The system can realize the isolation of the rain and snow on the front windshield, the driver's side and the passenger's side window glass. The system can realize the dust removal before starting the vehicle and the regular dust removal effect.

[0017] The system can realize the automatic deicing and defrosting function in low temperature, reduce the influence of severe cold weather on the vehicle, and improve the user's intelligent driving experience. BRIEF DESCRIPTION OF DRAWINGS

[0018] The content expressed in each drawing in the specification of the present application and the marks in the drawings are briefly described as follows:

[0019] Figure 1Structure diagram of high-pressure air rain and snow isolation device for automobile

[0020] Figure 2 Working state diagram of high-pressure air rain and snow isolation device for automobile

[0021] The marks in the above figures are as follows: 1, air blower; 2, normal-pressure air duct; 3, pressure tank; 4, control module; 5, high-pressure air duct; 6, matrix high-pressure sprayer; 7, spray hole; 8, temperature and rainfall sensor. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described below with reference to the accompanying drawings and by describing the embodiments, the shape, structure, mutual position and connection relationship between the parts, the function and working principle of each part, the manufacturing process and the operation and use method of each component involved in the present application are described in further detail to help the skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application.

[0023] Currently, the rain wiper on the market blocks the field of vision, and the rain and snow attached to the main and assistant driver's window glass affects the driving safety. The streaming rearview mirror is not mature, and there is no effective solution at present. The high-pressure air rain and snow isolation device for automobile uses high-pressure gas to remove the accumulated water and snow on the glass surface, which can be applied to the front windshield and the main and assistant driver's window glass, and can also be applied to part of the glass alone.

[0024] For the glass that needs to remove the accumulated water and snow, the matrix high-pressure sprayer 6 needs to be installed under the eave of the glass. The matrix high-pressure sprayer 6 is in a strip structure, and the overall length is the same as the width of the glass. It is generally fixed to the outside of the window frame for blowing air to the outer surface of the glass, and the matrix high-pressure sprayer 6 is densely covered with spray holes 7 to blow air to the window glass in a diagonal direction.

[0025] The air source of the matrix high-pressure sprayer 6 comes from the air blower 1. The air blower 1 is connected to the air inlet of the pressure tank 3 through the normal-pressure air duct 2, and the air outlet of the pressure tank 3 is connected to the matrix high-pressure sprayer 6 through the high-pressure air duct 5. The air blower 1 is preferably the original air conditioner air blower 1 of the automobile, which can reduce the assembly cost of the system. The control module 4 of the system needs to be connected with the vehicle body controller for coordinated control of the air blower 1 in the air conditioner. In order to increase the effect of removing the accumulated water and snow, especially the ability to remove the snow, an electric heating wire is arranged in the pressure tank 3. The control module 4 is connected to and outputs a control signal to the electric heating wire, which can blow out hot air as needed through the intelligent control system working by knowing the environmental temperature and state.

[0026] The blower 1 provides normal pressure air flow, when the pressure needs to be increased, the normal pressure air flow enters the pressure tank 3 through the normal pressure air duct 2, and the high pressure gas is output from the pressure tank 3; the high pressure gas passes through the high pressure air duct 5, and is sprayed out through the matrix high pressure sprayer 6 arranged on the front windshield and the main and auxiliary driver side window glasses. The temperature and rainfall sensor 8 inputs the outdoor temperature and rainfall size to the control module 4 through the LIN signal, the control module 4 also receives the vehicle running condition of the whole vehicle, and the control module 4 controls the rotating speed of the blower 1 and the rotating speed of the pressure pump of the pressure tank 3, adjusts the internal temperature of the pressure tank 3, and adjusts the spraying angle of the matrix high pressure sprayer 6, so as to realize the functions of high pressure gas dust removal, automatic adjustment of air pressure to isolate rain and snow in rainy and snowy weather, and opening of low temperature ice and frost removal.

[0027] The system can additionally add a separate temperature and rainfall sensor 8 outside the window for sensing the ambient temperature and whether it is raining, the temperature and rainfall sensor 8 is connected and outputs the sensing signal to the control module 4, and when it rains, the rain and snow isolation function is automatically opened, the blower 1 is controlled to work, and after the rain stops, the rain and snow isolation function is closed, and the blower 1 is controlled to be closed

[0028] The specific control strategy includes:

[0029] 1. When the outside temperature is lower than 2℃, the control module 4 realizes the function of unlocking and automatically opening the low temperature ice and frost removal function, and the frost removal time is less than 10S and the ice removal time is less than 2min;

[0030] 2. When the whole vehicle unlocking signal is recognized, the dust removal function is opened;

[0031] 3. The spraying air pressure value is calibrated according to different use scenes, and the gas temperature can be changed from normal temperature to 115℃;

[0032] 4. When the equipment unlocking signal or a certain time interval is reached, the control module 4 can open the system to realize the dust removal effect of the window glass, which is expected to be 5S; according to the rainfall size and the vehicle speed, the control module 4 automatically adjusts the spraying air pressure to blow away the rain and snow falling on the glass;

[0033] 5. When the door is opened, the control module 4 automatically closes the matrix high pressure sprayer 6.

[0034] Through the above control method, when it rains and the ambient temperature is lower than the set temperature, the electric heating wire can be turned on at the same time when the rain and snow isolation function is started, and the electric heating wire can be turned off when the rain and snow isolation function is turned off. The automatic start function can be set in the vehicle central control to determine whether it is turned on. It will be automatically executed only when it is turned on. This requires the control module 4 to be connected to the vehicle central control. A virtual setting button for turning on or off the automatic start of the rain and snow isolation function is provided on the vehicle central control. A virtual button for manually turning on and off the rain and snow isolation function is provided on the vehicle central control, which can control the automatic function of the function and can also be manually controlled when needed.

[0035] In order to enhance the effect of removing accumulated water and snow, it is preferred that the matrix high-pressure ejector 6 is provided with two rows of ejection holes 7, the lines connecting the two rows of ejection holes 7 are parallel to each other, and preferably, the aperture of the upper row of ejection holes 7 of the matrix high-pressure ejector 6 is smaller than the aperture of the lower row of ejection holes 7, so that the air pressure of the upper air flow layer is greater than that of the lower air flow layer. Figure 2 As shown, the pressure of the wind blown out of the two layers is different. The wind from a larger aperture has a lower velocity and lower pressure. Similarly, the wind from a smaller aperture has a higher velocity and higher pressure. Consequently, there is a pressure difference between the wind blowing toward the glass from the top and bottom. This creates downward pressure everywhere on the glass, dispersing water and snow for a more effective decontamination effect. Furthermore, the injection holes 7 of the matrix-type high-pressure ejectors 6 have a slightly larger angle between the injection direction and the glass than the injection holes 7 in the upper row. This further enhances the effectiveness of removing accumulated water and snow.

[0036] The rain and snow isolation system of the present invention is an independent high-pressure air isolation system that automatically adjusts air pressure and spray angle based on the actual amount of rain and snow, isolating rain and snow during driving, thereby improving the driver's field of vision. This system can isolate rain and snow from the front windshield and the driver and passenger side windows. This system can also achieve dust removal before the vehicle starts and periodically.

[0037] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A high-pressure air device for isolating rain and snow for automobiles, characterized by: A strip-shaped matrix high-pressure injector is provided along the bottom end of the vehicle window glass. The matrix high-pressure injector is located on the outside of the vehicle window glass and blows air toward the vehicle window glass in an oblique direction. The matrix high-pressure injector is connected to the blower through a pipe. The blower is connected to the air inlet of the boost tank through a normal pressure air duct, and the air outlet of the boost tank is connected to the matrix high pressure ejector through a high pressure air duct; The matrix high-pressure injector is provided with two rows of injection holes. Among the injection holes of the matrix high-pressure injector, the aperture of the injection holes in the upper row is smaller than the aperture of the injection holes in the lower row, so that the air pressure of the upper air flow layer is greater than the air pressure of the lower air flow layer; Among the injection holes of the matrix high-pressure injector, the angle between the injection direction of the upper row of injection holes and the glass is slightly larger than the angle between the injection direction of the lower row of injection holes and the glass; The vehicle window glass includes the front windshield, and the driver and co-driver side window glass; The blower is an automobile air-conditioning blower; An electric heating wire is provided in the boost tank, and the control module is connected to and outputs a control signal to the electric heating wire.

2. The high-pressure air rain and snow isolation device for automobiles according to claim 1, characterized in that: A temperature and rain sensor is provided on the outside of the car window glass for sensing the ambient temperature and whether it is raining. The temperature and rain sensor is connected to and outputs a sensing signal to the control module. When it rains, the rain and snow isolation function is automatically turned on to control the blower to work. After the rain stops, the rain and snow isolation function is turned off to control the blower to shut down.

3. The high-pressure air rain and snow isolation device for automobiles according to claim 2, characterized in that: When it rains and the ambient temperature is lower than the set temperature, the electric heating wire is turned on at the same time when the rain and snow isolation function is started, and the electric heating wire is turned off when the rain and snow isolation function is turned off. The control module is connected to the vehicle central control, and the vehicle central control is provided with a virtual setting button for turning on or off the automatic start of the rain and snow isolation function, and the vehicle central control is provided with a virtual button for manually turning on and off the rain and snow isolation function.

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