WO2018068708A1

WO2018068708A1 - Defrosting and decontamination system for windshield of vehicle

Info

Publication number: WO2018068708A1
Application number: PCT/CN2017/105570
Authority: WO
Inventors: 徐振彪
Original assignee: 徐振彪
Priority date: 2016-10-11
Filing date: 2017-10-10
Publication date: 2018-04-19
Also published as: CN106427906A

Abstract

Disclosed is a defrosting and decontamination system for a windshield of a vehicle. The defrosting and decontamination system for a windshield of a vehicle comprises: a liquid supply device, a heating device and a windshield wiper (100). The liquid supply device is connected to the windshield wiper (100) by a pipe (200); water outlet holes (101) in communication with the pipe (200) are provided on the windshield wiper (100); and the heating device is provided on the pipe (200) and is used to heat a cleaning liquid. The defrosting operation for a windshield of a vehicle is enabled to be convenient and quick, saving time and effort, and a decontamination operation can also be implemented at the same time as when the defrosting operation for the windshield is implemented.

Description

Vehicle windshield defrost and decontamination system

This application claims priority to Chinese Patent Application No. CN201610887359.4, entitled "Vehicle Windshield Defrosting and Decontamination System", filed on October 11, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of vehicle engineering technology, and in particular, to a vehicle windshield defrost and decontamination system.

Background technique

With the development of the economy, vehicles have entered the homes as a means of transportation that provides great convenience for life, and people have higher and higher requirements for various performances of vehicles. At present, in cold regions, especially in northern Europe, North America, northern China and other regions, the front window of vehicles parked outdoors is often covered with ice and snow or frost, especially the frost condensation on the windshield is difficult to remove, affecting the driver's sight. , which in turn affects driving safety. Or you must wait until the frost melts before you can drive and waste time. The defrost performance of a vehicle is one of the criteria for verifying vehicle safety and has been enforced. Decontamination of the window glass is also an indispensable but cumbersome task.

At present, it is common practice to have a vehicle engine blowing hot air on the front windshield to melt the snow frost or wiping the defrosting with a hot towel, which is time consuming and laborious. There are also wipers repeatedly used to defrost and remove snow, so long-term use will cause great wear and tear on the wiper, affecting the working effect of the wiper. Moreover, the above defrosting method takes a while to drive, causing great inconvenience to the driver and time and labor.

Summary of the invention

It is an object of the present invention to provide a vehicle windshield defrosting and decontaminating system to solve the technical problem of inconvenient and time-consuming and cumbersome operation of the vehicle windshield defrosting and decontaminating in the prior art.

The present invention provides a defrosting device comprising: a liquid supply device, a heating device and a wiper; the liquid supply device is connected to the wiper through a pipe, and the wiper is provided with a water outlet communicating with the pipe The heating device is disposed on the pipe for heating the cleaning liquid.

Further, the wiper comprises two brush plates arranged in parallel, and a water-permeable plate for spraying a cleaning liquid is disposed between the two brush plates, and the water-permeable plate and the two brush plates together form a hollow cavity The water outlet hole is disposed on the water seepage plate.

Further, one end of the duct communicates with the liquid supply device and extends to the wiper and The hollow cavity is in communication.

Further, the number of the water outlet holes is at least one.

Further, the liquid supply device includes a water pump and a water tank for storing the cleaning liquid, and the water tank is connected to one end of the pipe;

The water pump is disposed at a portion of the conduit between the water tank and the heating device for extracting and delivering the cleaning liquid in the water tank to the hollow cavity.

Further, the heating device is disposed in a circumferential manner on a pipe between the water pump and the wiper, that is, the pipe passes through the heating device.

Further, the heating device includes an electric heater.

Further, the electric heater includes a resistance wire.

Further, a control device is further included, the control device being electrically connected to the water pump and the electric heater, respectively.

Further, the water tank is a glass water tank in a vehicle.

Compared with the prior art, the present invention can achieve the following beneficial effects:

The invention provides a vehicle windshield defrosting and defogging system, comprising: a liquid supply device, a heating device and a wiper; the liquid supply device is connected with the wiper through a pipe, and the water wiper is provided with a water outlet hole communicating with the pipe; A heating device is provided on the pipe for heating the cleaning liquid. The pipeline is used for conveying the cleaning liquid in the liquid supply device to the wiper. During the transportation process, the heating device is responsible for heating the liquid, and the cleaning liquid delivered to the wiper acts on the windshield of the vehicle through the water outlet hole due to the temperature thereof. Higher, it can melt the snow frost in time, and the wiper will brush the melted snow cream together with the cleaning liquid and discharge it from the discharge passage of the vehicle. At the same time, the heated cleaning liquid will have a better cleaning ability, and the windshield will be defrosted while being clean and clear. It is also possible to perform decontamination operation while defrosting the windshield, which is convenient and quick, and saves time and labor.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic structural view of a vehicle windshield defrost and decontamination system according to an embodiment of the present invention;

2 is a schematic structural diagram of a wiper of a vehicle windshield defrosting and decontaminating system according to an embodiment of the present invention;

Figure 3 is an enlarged view of A in Figure 2;

4 is a schematic cross-sectional structural view of a wiper of a vehicle windshield defrosting and decontaminating system according to an embodiment of the present invention.

Icons: 100 - wiper; 101 - water outlet; 102 - brush; 103 - water seepage; 200 - pipe; 300 - water pump; 400 - water tank; 500 - electric heater.

detailed description

The technical solutions of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

1 is a schematic structural view of a vehicle windshield defrosting and decontaminating system according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a wiper of a vehicle windshield defrosting and decontaminating system according to an embodiment of the present invention; FIG. 3 is an enlarged view of A of FIG. 2; FIG. 4 is a schematic cross-sectional structural view of a wiper of a vehicle windshield defrosting and decontaminating system according to an embodiment of the present invention;

In winter driving, the windshield will inevitably encounter frost and snow. For the driver of the vehicle, not only will it affect the driving horizon, but it will also cause a serious safety accident. It can be seen that it is necessary to remove frost and snow.

As shown in FIG. 1 , the vehicle windshield defrost and decontamination system provided by the embodiment includes: a liquid supply device, The heating device and the wiper 100 are connected to the wiper 100 through a pipe 200. The wiper 100 is provided with a water outlet hole 101 communicating with the pipe 200. The heating device is disposed on the pipe 200 for heating the cleaning liquid.

The wiper 100 is an important accessory mounted on the windshield of the vehicle, and functions to remove rain, snow and dust on the windshield that obstruct the line of sight, and plays an important role in driving safety.

Nowadays, the wiper 100 basically realizes the motor drive, and generally consists of a wiper brush arm, a wiper brush assembly, a brush 102, a brush holder, a drive rod system, a speed reduction mechanism, a motor, a switch and the like. In the unused state, the brush 102 of the wiper 100 is pressed against the outer surface of the windshield by the wiper arm. In use, the switch is activated, the motor drives the speed reduction mechanism to rotate, and the drive rod is reciprocated to drive the wiper brush arm and the brush piece 102 to swing side to side to realize the wiping motion of the windshield.

Due to the special physical properties of frost and snow, it will be more troublesome to remove. Although the wiper 100 can realize a partial defrost and decontamination function, it is time-consuming and laborious to require the wiper 100 to repeatedly scrape for a long time.

As shown in FIG. 2-4, in the present embodiment, the wiper 100 is provided with a water outlet hole 101, and the water outlet hole 101 communicates with the pipe 200, and the cleaning liquid in the liquid supply device is ejected from the water outlet hole 101 through the pipe 200. On the windshield of the vehicle. The cleaning liquid is heated by the heating device during the conveyance of the pipe 200 and sprayed onto the windshield, and its higher temperature can quickly melt the snow frost attached to the windshield. Thereafter, the wiper 100 reciprocates, and the melted snow frost water and the cleaning liquid are brushed together and discharged through the discharge passage of the vehicle.

The cleaning liquid heated by the heating device has better cleaning ability, better decontamination effect, and decontamination operation while performing defrosting operation on the windshield, so that the windshield is clean and transparent.

In general, water as a common solution can be used as a cleaning liquid, and the heated hot water can achieve the effect of defrosting and decontaminating.

In order to enhance the effect of defrost and decontamination, glass water can also be used as the cleaning liquid. Glass water is a common name for vehicle windshield cleaners and is a consumable item used in vehicles.

Glass water is mainly composed of water, alcohol, ethylene glycol, corrosion inhibitor and various surfactants. It has functions such as decontamination, landlord, antistatic and anti-corrosion. Among them, alcohol and ethylene glycol can significantly reduce the freezing point of the liquid, thereby preventing the freezing effect, and can quickly dissolve the snow frost. Surfactants usually have functions such as wetting, permeation, solubilization, etc., so as to clean and decontaminate.

Specifically, the wiper 100 includes two brush plates 102 disposed in parallel. A water-permeable plate 103 for spraying a cleaning liquid is disposed between the two brush plates 102. The water-permeable plate 103 and the two brush plates 102 together form a hollow cavity. .

The brush 102 of the wiper 100 acts like a broom that closely fits the surface of the windshield, and is driven by the wiper arm. It moves back and forth on the windshield surface, scraping off the water, dirt and snow frost on the windshield surface by repeated friction.

The material of the brush sheet 102 is generally selected from rubber. Since rubber has excellent resilience, insulation, water repellency and plasticity, it is the material most suitable for the production of the brush sheet 102. Most of the early brush blades 102 were made of natural rubber. The comprehensive physical and mechanical properties of natural rubber were superior to those of other rubbers. The processing performance was good, but the heat resistance, oxidation resistance and oil resistance were poor. With the advancement of technology, synthetic rubber has begun to be widely used. Synthetic rubber has superior oxidation resistance, ozone resistance and erosion resistance, and increases the service life of the brush sheet 102 while ensuring the water wiping performance. According to different chemical processes and additives, the quality of the blade is clearly distinguished. The brush 102 with excellent quality is very clean after wiping. In the process of repeated wiping, the group is also small, no noise and no vibration.

When selecting the material of the brush sheet 102, it is also necessary to consider the hardness of the rubber. When the rubber hardness is too large, the angle between the strip edge of the brush 102 and the surface of the windshield is too large, thereby increasing the risk of the wiper 100 being shaken during operation. On the contrary, when the hardness of the rubber is too small, the strength of the wiper 100 in the work is not large enough, and there is a hidden danger that the wiper blade and the scraping are not clean.

During the operation of the wiper 100, the vertical pressure is uniformly applied to the brush 102 by the wiper arm, so that the edge of the strip of the brush 102 is perpendicular to the curved surface of the windshield of the vehicle and is attached thereto.

The wiper 100 is generally classified into a bone wiper and a boneless wiper. A bone wiper, that is, a conventional wiper, works by pressing the brush 102 against the windshield through a plurality of support points on the skeleton to average the pressure of each support point on the brush 102. However, due to its structural relationship, it is impossible to make the brush sheet 102 and the windshield fit perfectly, resulting in problems such as dirty scratching, easy wear of the brush sheet 102, and high noise. The boneless wiper relies on a whole force of the entire force distribution bar, and the various parts of the brush piece 102 are evenly stressed, which can reduce the generation of water marks and achieve a better scratching effect.

In the present embodiment, the wiper 100 is provided with two parallel brush blades 102, and a water seepage plate 103 is disposed between the two brush blades 102. The water seepage plate 103 and the two brush sheets 102 enclose a hollow cavity. One end of the pipe 200 communicates with the liquid supply device, and the other end extends until the wiper 100 communicates with the hollow cavity. The cleaning liquid delivered to the wiper 100 via the duct 200 enters the cavity and is discharged from the water seepage plate 103. At this time, the water outlet hole 101 is provided on the water seepage plate 103.

The cleaning liquid in the liquid supply device is conveyed by the pipe 200 to the wiper 100, and the cleaning liquid enters

The shape of the water seepage plate 103 should be adapted to the space formed by the two parallelly disposed brush blades 102, and the position where the water seepage plate 103 and the brush blade 102 are connected is not at the end of the brush blade 102 contacting the windshield, that is, not being shielded from the wind. The glass is in contact with and has a certain gap. This is because the brush piece 102 is deformed due to the elasticity of the rubber during operation. If the water seepage plate 103 is disposed at the end of the brush piece 102 that is in contact with the windshield, when the wiper 100 is in operation, the brush The sheet 102 is deformed, and the water seepage plate 103 is in contact with the windshield, one affects the normal operation of the wiper 100, and the other causes damage to the water seepage plate 103.

Since the water seepage plate 103 is disposed along the gap between the two brush sheets 102, its shape should be an elongated face. The plurality of water outlet holes 101 provided on the water seepage plate 103 are preferably arranged in a single row along the longitudinal direction of the water seepage plate 103. Moreover, in order to uniformly spray the cleaning liquid onto the windshield surface during operation of the wiper 100, the water outlet hole 101 is evenly extended along the longitudinal direction of the water seepage plate 103 to cover the entire water seepage plate 103.

It should be noted that the shape of the water outlet hole 101 in the present embodiment is circular, but it is not limited to a circular shape, but may be a square shape, a rhombus shape, and the like. The circular shape is only a preferred embodiment.

The liquid supply device in this embodiment includes a water pump 300 and a water tank 400 for storing a cleaning liquid, and the water tank 400 is connected to one end of the pipe 200.

Specifically, the water tank 400 can directly adopt a water tank in which glass water is stored in the vehicle, which is economical and convenient.

The water pump 300 is a machine that delivers or pressurizes the liquid, and transmits mechanical energy or other external capabilities of the engine to the liquid to increase the energy of the liquid.

The water tank 400 is generally placed near the engine position of the vehicle, at a lower position than the position of the windshield. The function of the water pump 300 extracts and transports the cleaning liquid stored in the water tank 400 to the hollow body formed by the two brush blades 102 and the water seepage plate 103 in the wiper 100, and the cleaning liquid passes through the water outlet hole on the water seepage plate 103. The 101 discharge is sprayed onto the windshield.

It should be noted that the water pump 300 is disposed on the portion of the pipe 200 between the water tank 400 and the heating device, that is, one end of the pipe 200 is connected to the water tank 400, and the water pump 300 and the heating device are sequentially disposed along the pipe 200 from the water tank 400. The other end of the duct 200 is connected to the wiper 100.

Specifically, the heating device is disposed in a circumferential manner on the duct 200 between the water pump 300 and the wiper 100, that is, the duct 200 passes through the heating device.

By arranging the heating means in a surrounding manner on the duct 200, it is possible to heat the cleaning liquid in the duct 200 in a short time.

It should be noted that the heating device is disposed behind the water pump 300 along the conveying direction of the cleaning liquid in the duct 200. The reason for this arrangement is that after the heating device heats the cleaning liquid, the temperature of the cleaning liquid rises. If the water pump 300 passes again at this time, the cleaning liquid having a higher temperature will cause more damage to the water pump 300 than the ordinary cleaning liquid. This will result in a reduction in the service life of the water pump 300.

Specifically, the heating device includes an electric heater 500. The electric heater 500 is tubular and sleeved on the pipe 200.

Electric heater 500 is a commonly used electric heating device, mainly used for the flow of liquid and gaseous medium. The temperature is raised, kept warm or heated. When the heated medium needs to pass through the heating chamber of the electric heater 500 under pressure, the medium uniformly takes away the huge heat generated in the operation of the electric heating element due to the fluid thermodynamic principle, so that the medium reaches the purpose of being heated. In the present embodiment, the heated medium, that is, the cleaning liquid that is delivered to the electric heater 500 via the duct 200, is required.

The electric heating method of the electric heater 500 is generally classified into resistance heating, induction heating, arc heating, electron beam heating, infrared heating, and medium heating, depending on the manner of electric energy conversion.

In the embodiment, the electric heater 500 is made by resistance heating, and the electric heating element is a resistance wire.

Resistance heating uses the Joule effect of current to convert electrical energy into thermal energy to heat an object. Generally divided into direct resistance heating and indirect resistance heating. The former's power supply voltage is directly applied to the object to be heated, and when a current is passed, the heated object itself heats up. Objects that can be directly resistively heated must be conductors and have a high electrical resistivity. Indirect resistance heating requires a special metal or alloy to be used as a heating element. Thermal energy is generated by the heating element and transmitted to the object to be heated by radiation, convection and conduction. Since the object to be heated and the heating element are divided into two parts, the type of the object to be heated is not limited, and the operation is simple.

It should be noted that the electric heater 500 in the present embodiment is provided with a lead piece which is connected to the electric resistance wire inside the electric heater 500 and externally to the external power source. Wherein, the lead piece and the power source are connected by wires. The position of the lead piece relative to the electric heater 500 is not limited.

Further, the arrangement of the electric resistance wires inside the electric heater 500 is not limited, and may be provided around the duct 200 or may be arranged in a serpentine direction along the extending direction of the duct 200. However, the arrangement is preferably such that the intervals between the electric resistance wires are the same to obtain a uniform heating effect on the cleaning liquid.

This embodiment also includes a control device that is electrically coupled to the water pump 300 and the heating device, respectively.

The control device is used to control the operation of the water pump 300 and the electric heater 500. It should be noted that the control circuits of the water pump 300 and the electric heater 500 are separately provided, and the water pump 300 and the electric heater 500 can be independently controlled.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A vehicle windshield defrosting and decontaminating system comprises: a liquid supply device, a heating device and a wiper; the liquid supply device is connected to the wiper through a pipe, and the wiper is connected to the pipe a water outlet; the heating device is disposed on the pipe and configured to heat the cleaning liquid.
A vehicle windshield defrosting and decontaminating system according to claim 1, wherein said wiper comprises two brush sheets arranged in parallel, and between said two brush sheets is provided with water permeable to spray a cleaning liquid. a plate, the water seepage plate and the two brush plates together form a hollow cavity; the water outlet hole is disposed on the water seepage plate.
A vehicle windshield defrosting and decontaminating system according to claim 2, wherein one end of said duct communicates with said liquid supply means and extends until said wiper communicates with said hollow cavity.
The vehicle windshield defrost and decontamination system according to any one of claims 2 to 3, wherein the number of the water outlet holes is at least one.
A vehicle windshield defrosting and decontaminating system according to claim 2, wherein said liquid supply means comprises a water pump and a water tank for storing the cleaning liquid, said water tank being connected to one end of said pipe;

The water pump is disposed on a portion of the conduit between the water tank and the heating device and configured to draw the cleaning liquid in the water tank and pipe it to the hollow cavity.
A vehicle windshield defrosting and decontaminating system according to claim 5, wherein said heating means is disposed in a surrounding manner on a pipe between said water pump and said wiper, that is, said pipe is worn Through the heating device.
A vehicle windshield defrosting and decontaminating system according to claim 6 wherein said heating means comprises an electric heater.
A vehicle windshield defrosting and decontaminating system according to claim 7, wherein said electric heater comprises a resistance wire.
A vehicle windshield defrosting and decontaminating system according to claim 8, further comprising control means electrically connected to said water pump and said electric heater, respectively.
A vehicle windshield defrost and decontamination system according to any one of claims 5-9, wherein the water tank is a glass water tank in a vehicle.