High-pressure air rain and snow isolation device for automobile

Abstract

The invention discloses a high-pressure air rain and snow isolation device for an automobile, a strip-shaped matrix type high-pressure ejector is arranged along the bottom end of automobile window glass, the matrix type high-pressure ejector is located on the outer side of the automobile window glass and blows air to the automobile window glass in the inclined side direction, and the matrix type high-pressure ejector is connected with an air blower through a pipeline. According to the rain and snow isolation system, the rain and snow isolation system can independently isolate rain and snow through high-pressure air, the air pressure and the spraying angle can be automatically adjusted according to the real-time rain and snow amount, rain and snow in the driving process are isolated, and therefore the visual field of a driver is improved. The system can realize isolation of rain and snow for front windshield glass and main and co-pilot side window glass. The system can achieve the effects of dust removal before the vehicle is started and regular dust removal.

Description

Technical Field

[0001] The present invention relates to the field of automobile intelligence, and in particular to a technology for removing rain and snow from automobile glass. Background Art

[0002] In order to obtain a good field of vision while driving, motor vehicles have developed a wiper structure on the front windshield, which can simply clean rainwater and other dirt on the glass.

[0003] Wipers currently include ordinary wipers, water-spraying wipers, and air wipers. For example, the public document with the announcement number CN106985790A, the publication date of July 28, 2017, and the patent name "A car equipped with a new wiper system" discloses a car equipped with a new wiper system, including a wiper, and the wiper includes a wiper arm and a wiper brush, and the wiper arm and the wiper brush are fixedly connected; the wiper arm and / or the wiper brush are provided with a magnetic part. When the wiper is installed on the car, a magnetic part is also provided on the A-pillar and the air-conditioning air intake grille, and the magnetic properties of the magnetic part on the wiper are the same as those of the magnetic part on the A-pillar and the air-conditioning air intake grille; the magnetic part on the wiper and the magnetic part on the A-pillar and the air-conditioning air intake grille repel each other with the same polarity to generate a repulsive force, and the wiper will not touch the A-pillar and the air-conditioning air intake grille.

[0004] Ordinary wipers spray water through two nozzles on the car hood or front trim. The water column is columnar and fan-shaped, the spraying is not uniform, and the driver's vision is seriously affected at the moment of water column spraying and the time when the wiper blade is not in action. Compared with ordinary wipers, water-spraying wipers can save glass water and enable drivers to have a clearer field of vision, effectively reducing safety hazards during vehicle driving. Air wipers use the structure of water-spraying wipers, but the air pressure is not high enough, and the effect of clearing rain, snow, wind and sand is not good.

[0005] When a motor vehicle is driving in rainy or snowy weather, the rearview mirrors are heated to provide a good view, but the driver and co-driver side windows will be covered with rain and snow, which seriously affects the view and has a serious impact on the driver's lane change and overtaking, and even endangers life. However, there is currently no effective solution on the market. Summary of the invention

[0006] The technical problem to be solved by the present invention is to realize a system which can utilize air pressure to blow air and isolate rain and snow from glass.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-pressure air rain and snow isolation device for a car, a strip-shaped matrix high-pressure injector is provided along the bottom end of the car window glass, the matrix high-pressure injector is located on the outside of the car window glass and blows air toward the car window glass in an oblique direction, and the matrix high-pressure injector is connected to a blower through a pipe.

[0008] 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 type high pressure ejector through a high pressure air duct.

[0009] 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 upper row of injection holes is smaller than the aperture of the lower row of injection holes, so that the air pressure of the upper airflow layer is greater than the air pressure of the lower airflow layer.

[0010] Among the injection holes of the matrix type high-pressure injector, 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 driver and co-driver side window glass.

[0012] The blower is an automobile air-conditioning blower.

[0013] An electric heating wire is arranged in the boost tank, and the control module is connected to and outputs a control signal to the electric heating wire.

[0014] A temperature and rain sensor is provided on the outside of the vehicle window 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.

[0015] When it rains and the ambient temperature is lower than the set temperature, the electric heating wire is turned on 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.

[0016] The rain and snow isolation system of the present invention can be an independent high-pressure air isolation rain and snow device system, which can automatically adjust the air pressure and spray angle according to the real-time amount of rain and snow, so as to isolate the rain and snow during driving, thereby improving the driver's field of vision. This system can isolate the front windshield and the main and co-driver side windows from rain and snow. This system can achieve the effect of dust removal before the vehicle starts and regular dust removal.

[0017] This system can realize the functions of automatic defrosting and defrosting at low temperatures, reduce the impact of severe cold weather on vehicle use, and enhance the user's intelligent driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents expressed in each figure in the specification of the present invention and the marks in the figure:

[0019] Figure 1This is a schematic diagram of the structure of a high-pressure air device for isolating rain and snow for automobiles;

[0020] Figure 2 This is a schematic diagram of the working state of the high-pressure air device for isolating rain and snow for automobiles;

[0021] The markings in the above figures are: 1. Blower; 2. Normal-pressure air duct; 3. Booster tank; 4. Control module; 5. High-pressure air duct; 6. Matrix high-pressure injector; 7. Injection hole; 8. Temperature and rainfall sensor. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation methods of the present invention, such as the shape, structure, relative position and connection relationship between the various components involved, the function and working principle of each part, the manufacturing process and operation method, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0023] Currently, windshield wipers on the market block the view, and the driver and co-driver side windows are covered with rain and snow, which affects driving safety. The streaming media rearview mirror is immature and there is no effective solution. The high-pressure air snow and rain isolation device for automobiles uses high-pressure gas to remove water and snow on the glass surface. It can be applied to the front windshield, the driver and co-driver side windows, and of course it can also be applied to some of the glass alone.

[0024] For glass that needs to remove accumulated water and snow, a matrix high-pressure injector 6 needs to be installed under the eaves of the glass. The matrix high-pressure injector 6 is a strip structure with an overall length the same as the width of the glass. It is generally fixed to the outside of the window frame against the glass to blow air to the outer surface of the glass. The matrix high-pressure injector 6 is densely covered with injection holes 7 to blow air toward the car window glass in an oblique direction.

[0025] The wind source of the matrix high-pressure injector 6 comes from the blower 1. The blower 1 is connected to the air inlet of the boost tank 3 through the normal-pressure air duct 2. The air outlet of the boost tank 3 is connected to the matrix high-pressure injector 6 through the high-pressure air duct 5. The blower 1 preferably adopts the original air-conditioning blower 1 of the car, which can reduce the assembly cost of the system; the control module 4 of this system needs to be connected to the body controller to coordinate and control the operation of the blower 1 in the air conditioner; in order to increase the effect of removing accumulated water and snow, especially to increase the ability to remove snow, an electric heating wire is provided in the boost tank 3, and the control module 4 is connected and outputs a control signal to the electric heating wire, so that hot air can be blown out according to needs through control, and the control system works by knowing the ambient temperature and environmental status.

[0026] The blower 1 provides normal pressure airflow. When boosting is required, the normal pressure airflow enters the boost tank 3 through the normal pressure air duct 2, and the boost tank 3 outputs high pressure gas; the high pressure gas passes through the high pressure air duct 5 and enters the matrix high pressure injector 6 arranged on the front windshield and the driver and co-driver side windows for ejection. The temperature and rainfall sensor 8 inputs the outdoor temperature and rainfall to the control module 4 via the L IN signal. The control module 4 also receives the vehicle operation status sent by the whole vehicle. The control module 4 controls the speed of the blower 1 and the boost pump speed of the boost tank 3 according to all the received signals, adjusts the internal temperature of the boost tank 3, and adjusts the injection angle of the matrix high pressure injector 6, so as to realize the functions of high pressure gas dust removal on the vehicle, automatic air pressure adjustment in rainy and snowy weather to isolate rain and snow, and start low temperature deicing and defrosting.

[0027] The system can add an independent temperature and rain sensor 8 outside the car window to sense the ambient temperature and whether it is raining. The temperature and rain sensor 8 is connected and outputs a sensing signal to the control module 4. When it rains, the rain and snow isolation function is automatically turned on to control the blower 1 to work. When the rain stops, the rain and snow isolation function is turned off, and the blower 1 is controlled to turn off.

[0028] Specific control strategies include:

[0029] 1. When the outside temperature is lower than 2°C, the control module 4 can unlock and automatically start the low-temperature defrosting and ice-removing function. The defrosting time is less than 10 seconds and the de-icing time is less than 2 minutes.

[0030] 2. Identify the vehicle unlocking signal and turn on the dust removal function;

[0031] 3. The injection pressure value is calibrated according to different usage scenarios, and the gas temperature can be changed from room temperature to 115 degrees Celsius;

[0032] 4. When the device unlocks, or after a certain period of time, the control module 4 can start the system to achieve dust removal effect on the car window glass, which is expected to take 5 seconds; according to the amount of rain and the speed of the car, the control module 4 automatically adjusts the injection 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 turns off the matrix high-pressure injector 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 to turn it 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 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 startup state of the function and can also be manually controlled when needed.

[0035] In order to increase the effect of removing accumulated water and snow, it is preferred that the matrix high-pressure injector 6 is provided with two rows of injection holes 7, the connection lines of the two rows of injection holes 7 are parallel to each other, and it is preferred that the aperture of the upper row of injection holes 7 in the injection holes 7 of the matrix high-pressure injector 6 is smaller than the aperture of the lower row of injection holes 7, so that the air pressure of the upper airflow layer is greater than the air pressure of the lower airflow layer. Figure 2 As shown, the air pressure of the two layers of the wind blown out in this way is different. The wind blown out of the large aperture has a lower wind speed and a lower wind pressure. Similarly, the wind blown out of the small aperture has a higher wind speed and a higher wind pressure. The wind blowing toward the glass from the upper and lower sides has a pressure difference. The wind blowing toward the glass will form a downward pressure anywhere on the glass, blowing away the water and snow, and having a better decontamination effect. At the same time, among the injection holes 7 of the matrix high-pressure injector 6, the angle between the injection direction of the upper row of injection holes 7 and the glass is slightly larger than the angle between the injection direction of the lower row of injection holes 7 and the glass, which can further improve the effect of blowing away accumulated water and snow.

[0036] The rain and snow isolation system of the present invention can be an independent high-pressure air isolation rain and snow device system, which can automatically adjust the air pressure and spray angle according to the real-time amount of rain and snow, so as to isolate the rain and snow during driving, thereby improving the driver's field of vision. This system can isolate the front windshield and the main and co-driver side windows from rain and snow. This system can achieve the effect of dust removal before the vehicle starts and regular dust removal.

[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 protection scope of the present invention.

Claims

1. A high-pressure air rain and snow isolation device for automobiles, characterized in that: 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 outside 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 pipeline.

2. The high-pressure air rain and snow isolation device for automobiles according to claim 1, characterized in that: 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 type high pressure ejector through a high pressure air duct.

3. The high-pressure air rain and snow isolation device for automobiles according to claim 2, characterized in that: 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 upper row of injection holes is smaller than the aperture of the lower row of injection holes, so that the air pressure of the upper airflow layer is greater than the air pressure of the lower airflow layer.

4. The high-pressure air rain and snow isolation device for automobiles according to claim 3, characterized in that: Among the injection holes of the matrix type high-pressure injector, 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.

5. The high-pressure air rain and snow isolation device for automobiles according to any one of claims 1 to 4, characterized in that: The vehicle window glass includes a front windshield, and driver and co-driver side window glass.

6. The high-pressure air rain and snow isolation device for automobiles according to claim 5, characterized in that: The blower is an automobile air-conditioning blower.

7. The high-pressure air rain and snow isolation device for automobiles according to claim 1 or 6, characterized in that: An electric heating wire is arranged in the boost tank, and the control module is connected to and outputs a control signal to the electric heating wire.

8. The high-pressure air rain and snow isolation device for automobiles according to claim 7, characterized in that: A temperature and rain sensor is provided on the outside of the vehicle window 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.

9. The high-pressure air rain and snow isolation device for automobiles according to claim 8, characterized in that: When it rains and the ambient temperature is lower than the set temperature, the electric heating wire is turned on 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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