阅读说明：本技术 用于提高汽车后视镜防水雾性能的等离子体装置 (Plasma device for improving water mist prevention performance of automobile rearview mirror ) 是由 崔行磊 申杰飞 周洋洋 方志 金珊珊 于 2021-07-16 设计创作，主要内容包括：本发明提供了一种用于提高玻璃防水雾性能的等离子体装置,放电装置高压电极单元包括放电介质、高压电极和高压导线,放电装置高压电极单元下方设有接地单元,高压电极两端固定在绝缘支撑单元上,绝缘支撑单元为上下开口,绝缘支撑单元上设有供气单元,供气单元包括混气腔,混气腔上设有气体进入口和疏水改性试剂进料雾化器,混气腔的下方设有排气孔。本发明利用等离子体改性技术,实现对后视镜镜面的憎水改性处理,处理时间短,效率高。处理后后视镜镜面自带防水效果,无需额外加热装置或雨刮等附加装置。等离子体改性使用小剂量疏水试剂,避免镀膜液等化学试剂的大量使用,成本低,节能环保。同时憎水改性均匀度较好,无需无尘环境,适应性好。(The invention provides a plasma device for improving the water mist resistance of glass, wherein a high-voltage electrode unit of a discharge device comprises a discharge medium, a high-voltage electrode and a high-voltage lead, a grounding unit is arranged below the high-voltage electrode unit of the discharge device, two ends of the high-voltage electrode are fixed on an insulating support unit, the insulating support unit is provided with an upper opening and a lower opening, an air supply unit is arranged on the insulating support unit, the air supply unit comprises an air mixing cavity, an air inlet and a hydrophobic modified reagent feeding atomizer are arranged on the air mixing cavity, and an exhaust hole is arranged below the air mixing cavity. The invention realizes hydrophobic modification treatment on the mirror surface of the rearview mirror by using a plasma modification technology, and has short treatment time and high efficiency. The mirror surface of the rear-view mirror is treated to have a waterproof effect, and additional devices such as an additional heating device or a wiper are not needed. The plasma modification uses a small amount of hydrophobic reagent, so that a large amount of chemical reagents such as coating liquid are prevented from being used, the cost is low, and the energy conservation and environmental protection are realized. Meanwhile, the hydrophobic modification has better uniformity, no dust-free environment is needed, and the adaptability is good.)

1. A plasma device for improving the water fog prevention performance of an automobile rearview mirror comprises a discharge device high-voltage electrode unit (3), and is characterized in that: the discharge device high-voltage electrode unit (3) comprises a discharge medium (301), a high-voltage electrode (302) and a high-voltage lead (303), the high-voltage electrode (302), the discharge medium (301) and the high-voltage lead (303) are tightly connected, a grounding unit (5) is arranged below the discharge device high-voltage electrode unit (3), two ends of the high-voltage electrode (302) are fixed on an insulating support unit (2), the insulating support unit (2) is provided with an upper opening and a lower opening, an air supply unit (1) is supported on the insulating support unit (2), the air supply unit comprises an air mixing chamber (104), an air inlet is arranged on the air mixing chamber (104) and is tightly matched with a hydrophobic modified reagent feeding atomizer (102) through a feeding hole, and an exhaust hole (105) is arranged below the air mixing chamber (104.

2. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1, wherein: and a conveyor belt is arranged on the grounding unit (5).

3. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the high-voltage electrode (302) is made of red copper.

4. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the material of the discharge medium (301) is alumina ceramic.

5. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the grounding unit (5) is made of stainless steel.

6. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the air mixing cavity (104) and the insulating support unit (2) are cuboid in shape.

7. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the exhaust holes (105) are distributed in an array manner.

8. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: transparent glass (4) is arranged on two sides of the insulating support unit (2).

9. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the gas mixing cavity (104) is provided with two gas inlet openings, namely a first gas inlet opening (101) and a second gas inlet opening (102).

10. The plasma device for improving the antifogging property of the automobile rearview mirror as claimed in claim 1 or 2, wherein: the insulating support unit (2) is made of one or more of rubber, resin, nylon and wood.

Technical Field

The invention belongs to the field of plasmas, and relates to a plasma device for improving the water mist resistance of glass.

Background

The automobile outer rear-view mirror is an important component of automobile safe driving, can reflect the conditions of the rear, the side and the lower part of an automobile, enables a driver to indirectly see the conditions of the positions, and effectively enlarges the visual field range of the driver. However, in a rainy day environment, the automobile rearview mirror often cannot be seen clearly by a driver due to the accumulation of water drops, and the driving safety is adversely affected. Therefore, the rain removing device has strong practical significance for removing rain from the glass on the two sides and the outer rearview mirror and ensuring the definition of the glass on the two sides and the outer rearview mirror of the cab in a rainy environment.

Research and development personnel have developed various methods for meeting the rainproof requirement of the automobile rearview mirror.

The automatic drying of the rearview mirror is realized by adopting a heating drying technology, such as CN212921327U, CN110171363A and CN210337746U, and utilizing a heating plate or a heating copper pipe. However, in a large environment, the heat generated by the heating plate or the heating copper tube is not enough to quickly evaporate raindrops, so that the visual field is still blurred. Meanwhile, the device has large energy consumption, and a small-displacement automobile is not suitable for a rearview mirror heating technology, so that the total electric energy of the automobile is insufficient easily.

The bone wiper is adopted, as shown in CN206067713U, a motor and a wiper blade are utilized to effectively remove rainwater on the mirror surface of the rearview mirror, but the whole component of the bone wiper is large, and the bone wiper is installed on the rearview mirror to destroy the beauty of the rearview mirror and cause the increase of the wind resistance of the rearview mirror.

Coating liquid is used, as shown in CN111393926A, CN110272645A, CN110272645B and CN110054915A, oil-based or water-based coating liquid is used, a layer of hydrophobic protective film is formed on the surface of the rearview mirror, the residual of rainwater is reduced, the driving in rainy days is facilitated, but the coating liquid is high in cost and long in processing time, dust cannot be guaranteed in the coating process, the requirement on operation precision is high, and the coating is easy to be uneven.

Utilize nanometer coating protection film, as CN209989300U, CN209508131U, CN206279086U show, paste multilayer nanometer coating and protective layer that has oleophobic hydrophobic function on the rear-view mirror lens, guarantee the definition of driving the field of vision under rainy day or the fog environment, 4) hydrophobic persistence of hydrophobic protection film is relatively poor, often will leave glue when changing, it is comparatively troublesome to clear away, and if the dress pastes the method incorrectly, lead to the inside to contain the bubble, can cause and realize distortion, influence the back vision effect.

Disclosure of Invention

1. The technical problem to be solved is as follows:

the waterproof fog performance of the automobile rearview mirror is improved, the requirement for rapid hydrophobic treatment of the automobile driving outer rearview mirror is met, and the driving safety in rainy days is improved.

2. The technical scheme is as follows:

in order to solve the problems, the invention provides a plasma device for improving the water mist prevention performance of an automobile rearview mirror, which comprises a discharge device high-voltage electrode unit, wherein the discharge device high-voltage electrode unit comprises a discharge medium, a high-voltage electrode and a high-voltage wire, the high-voltage electrode, the discharge medium and the high-voltage wire are tightly connected, a grounding unit is arranged below the discharge device high-voltage electrode unit, two ends of the high-voltage electrode are fixed on an insulating support unit, the insulating support unit is provided with an upper opening and a lower opening, an air supply unit is arranged on the insulating support unit and comprises an air mixing cavity, an air inlet and a hydrophobic modified reagent feeding atomizer are arranged on the air mixing cavity and are tightly matched with the inlet, and an exhaust hole is arranged below the air mixing cavity.

And the grounding unit is provided with a conveyor belt.

The high-voltage electrode is made of red copper.

The material of the discharge medium is alumina ceramic.

The grounding unit is made of stainless steel.

The air mixing cavity and the insulating support unit are cuboid.

The exhaust hole is a plurality of, and the array distributes.

Transparent glass is arranged on two sides of the insulating support unit.

The gas mixing cavity is provided with two gas inlet openings, namely a first gas inlet opening and a second gas inlet opening.

The insulating support unit is made of one or more of rubber, resin, nylon and wood.

3. Has the advantages that:

the invention utilizes the plasma modification technology to rapidly realize hydrophobic modification treatment on the mirror surface of the rearview mirror, and has short treatment time and high efficiency. The mirror surface of the rear-view mirror is treated to have a waterproof effect, and additional devices such as an additional heating device or a wiper are not needed. The plasma modification uses a small amount of hydrophobic reagent, so that a large amount of chemical reagents such as coating liquid are prevented from being used, the cost is low, and the energy conservation and environmental protection are realized. Meanwhile, the hydrophobic modification has better uniformity, no dust-free environment is needed, and the adaptability is good.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the air supply unit.

Fig. 3 is a schematic view of a high voltage discharge electrode.

Description of reference numerals: 1. an air supply unit; 2. an insulating support unit; 3. a discharge device high voltage electrode unit; 4. transparent glass; 5. a grounding unit; 101. a first gas inlet port; 102. a second gas inlet port; 103. a hydrophobically modified reagent feed atomizer; 104. a gas mixing cavity; 105. an exhaust hole; 301. a discharge medium; 302. a high voltage electrode; 303. a high voltage wire.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the discharge device high-voltage electrode unit 3 is included, the discharge device high-voltage electrode unit 3 includes a discharge medium 301, a high-voltage electrode 302 and a high-voltage wire 303, the high-voltage electrode 302, the discharge medium 301 and the high-voltage wire 303 are tightly connected, a grounding unit 5 is arranged below the discharge device high-voltage electrode unit 3, two ends of the high-voltage electrode 302 are fixed on an insulating support unit 2, the insulating support unit 2 is provided with an upper opening and a lower opening, an air supply unit 1 is arranged on the insulating support unit 2, the air supply unit includes an air mixing chamber 104, the air mixing chamber 104 is provided with an air inlet and a hydrophobic modified reagent feeding atomizer 102 tightly matched with the inlet, and an exhaust hole 105 is arranged below the air mixing chamber 104.

As shown in fig. 2, the gas supply unit 1 includes a gas mixing chamber 104, the gas mixing chamber 104 is provided with a gas inlet and a hydrophobic modified reagent feeding atomizer 103, the modified hydrophobic reagent in an atomized state in the gas mixing chamber 104 is fully mixed with the working gas, and enters a discharge area through a lower exhaust hole 105, so as to ensure uniform and stable discharge.

In one embodiment, there are two gas inlets, a first gas inlet 101 and a second gas inlet 102.

In one embodiment, the exhaust holes 105 are arranged in a plurality of arrays.

As shown in fig. 3, the discharge device high voltage electrode unit 3 is composed of a high voltage motor 302, a discharge medium 301 and a high voltage lead 303. The high voltage electrode 302 is made of red copper and is tightly connected with a high voltage lead 303, and when the high voltage pulse power supply 304 applies voltage to the high voltage electrode 302 through the high voltage lead 303. The discharge medium 301 is made of alumina ceramic and is tightly matched with the metal high-voltage electrode 302, so that no air residue is ensured.

In one embodiment, the air mixing chamber 104 and the insulating support unit 2 are rectangular parallelepiped in shape. The insulating and supporting unit 2 is shown with transparent glass 4 on both sides. Used for observing discharge phenomenon and shielding gas.

In one embodiment, the grounding unit 5 is provided with a conveyor belt to facilitate industrial continuous processing.

When the rearview mirror is modified, the mirror lens can be conveyed to the upper part of the metal grounding unit 5 in fig. 1 by a conveyor belt, and a pulse voltage is applied to the high-voltage electrode 302 by the high-voltage pulse power supply 304 in fig. 3, so that dielectric barrier discharge occurs between the high-voltage electrode 302 and the metal grounding unit 5, and the hydrophobic treatment of the mirror lens is realized.

Before discharging, working gas argon, helium or air with a set flow rate is introduced into the gas mixing chamber 104 through the working gas inlet by the flow control unit. The hydrophobic reagent adding unit automatically controls the feeding amount of the hydrophobic reagent through a computer, the hydrophobic reagent is fully atomized by the atomizer 103 and fully mixed with working gas such as argon, helium or air in the gas mixing cavity 104, and the working gas enters a discharge space formed by the high-voltage electrode unit 3, the insulating support unit 2 and the observation window unit 4 through the array type exhaust holes 105, so that the specific atmosphere requirement of the discharge space is met. When in discharge, the hydrophobic reagent is cracked by the uniform low-temperature plasma generated by dielectric barrier discharge, the surface of the lens is etched, deposited and the like, the surface roughness of the lens is increased, and hydrophobic groups are introduced, so that the hydrophobic modification treatment of the lens is realized.

The device of the invention is not only suitable for all glass needing waterproof effect.