KR20030062475A - System for jetting washing liquid for a car - Google Patents

Abstract

PURPOSE: A warm washer liquid is injected as necessary, or the washer liquid is made as a steam and injected to clean front glass in a cold weather. CONSTITUTION: A washer liquid heating device(206) is provided between an injection pump(202) and a washer liquid transferring pipe(204). An operating switch is installed in a front part of a driver seat. A washer liquid heating controlling portion is provided inside of an automobile body. The washer liquid heating device is composed of a heater receiving power from a battery of the automobile.

Description

Washer liquid injector for automobiles {System for jetting washing liquid for a car}

The present invention relates to a washer fluid injector of an automobile, and in particular, by heating the washer fluid as needed to inject a warm washer fluid or by spraying the washer fluid, the front of the vehicle (or before, when the window brush is installed in cold weather or bad weather) The back side of the present invention relates to a washer fluid injector for cleaning a window.

In general, a window brush (wiper) is installed on the front (or front and rear) window of the vehicle. Such a window brush cleans the windshield of the car to clear the driver's watch for safe driving. With such a window brush, there is a washer fluid injector for cleaning a window of a vehicle. The washer fluid injector sprays the washer liquid of a specific component on the front, rear, and front windows of the vehicle where the window brush is installed to remove various dirts or foreign matters on the windows.

1 is a view schematically showing the configuration of a washer liquid injector of a conventional vehicle.

Referring to FIG. 1, a washer fluid injector of a conventional vehicle includes a washer fluid storage tank 101 for storing washer fluid, an injection pump 102 for injecting washer fluid from the washer fluid storage tank 101 at a predetermined pressure, and an injection pump 102. Drive motor 103 to operate the motor, and the washer fluid injected by the injection pump 102 to the predetermined place and the end of the transfer tube 104 and the delivery tube 104 to deliver the pumped washer liquid finally Washer liquid injection nozzle 105 for spraying the front or front, rear glass window 120 of the.

However, the above-described conventional washer fluid injector injects the washer fluid at a cold temperature in discharging the washer liquid, and thus the removal of snow deposited on the front windshield by heavy snow release or heavy snow. When dirt is stuck in the glass window or a specific component, there is a problem that does not properly perform the cleaning function.

The present invention was created in order to solve the above problems, by washing the washer fluid spray device of the vehicle which can clean the windshield of the car even in cold weather or bad weather by spraying the warm washer liquid or steamed washer liquid as needed The purpose is to provide.

1 is a block diagram of a washer fluid injector of a conventional vehicle.

2 is a block diagram of a washer fluid injector of an automobile according to the present invention.

3 is a system configuration diagram of a control unit of the washer fluid heating device of the washer fluid injection device of the present invention.

<Explanation of symbols for the main parts of the drawings>

Washer fluid storage tank 102,202 ...

103,203 Drive motor 104,204 Transport pipe

105,205 Injection nozzle 120,220 Windshield

206 Washer fluid heater 207 Container

208 Heater 209 Low water level detector

210 ... thermostat 211 ... automatic pressure regulating valve

212 ... Pressure gauge 213 ... (Washer fluid / steam) Outlet

214 ... Reduction outlet 230 ... Car battery

240 ... Residual washer fluid outlet 250 ... Heater on / off switch

301 Washer fluid heater Main part 302 Warm washer fluid switch

303 Washer fluid steam switch

In order to achieve the above object, a washer fluid injection device for a vehicle according to the present invention includes a washer fluid storage tank for storing washer fluid, a washer fluid injection pump and pump driving motor for injecting the washer fluid, and a washer fluid transfer pipe for pumping the washer fluid. And a washer fluid injection nozzle for injecting the pumped washer fluid into a window of the vehicle,

A device for supplying warm washer liquid or washer liquid steam to the transfer pipe by heating a predetermined amount of washer fluid supplied from the washer fluid storage tank by the injection pump to a predetermined temperature between the washer fluid injection pump and the transfer pipe. It includes a heater that receives power from a car's battery and generates heat, a low level sensor for detecting the low level of the washer fluid in the container, an automatic thermostat for automatically adjusting the temperature inside the container to a predetermined temperature range, and a warm washer or washer fluid. When the pressure inside the container is higher than a certain pressure while injecting steam, the washer fluid heating device is provided with automatic pressure regulating valves for automatically reducing the pressure in the container. Warm washer fluid by the washer fluid heater It is provided with an operating switch for the injection of steam washer liquid, and that characterized in that a predetermined portion of the car body, the washer fluid inside the heater control unit for controlling parts of the total length of the operation switch and the washer fluid heating device is provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing the configuration of a washer fluid injector of an automobile according to the present invention.

2, the washer fluid injector of an automobile according to the present invention basically has a configuration of a conventional washer fluid injector. That is, the washer fluid injector of an automobile according to the present invention includes a washer fluid storage tank 201 for storing washer fluid, an injection pump 202 for injecting washer fluid from the washer fluid storage tank 201 at a predetermined pressure, and an injection pump 202. The driving motor 203 for operating the motor, the washer fluid injected by the injection pump 202, and the transfer pipe 204 and the end of the transfer pipe 204 for pumping the washer liquid is finally provided to Washer liquid injection nozzles 205 for spraying the front or front and rear glass windows are basically provided, and a predetermined amount of washer liquid supplied from the washer liquid storage tank 201 via the injection pump 202 is heated to a predetermined temperature. A washer liquid heating device 206 is further provided to supply the transfer pipe 204.

The washer liquid heating device 206 is a container 207 having a predetermined capacity constituting the main body portion, a heater 208, a low water level sensor 209, an automatic temperature controller, respectively provided at predetermined portions of the container 207, as shown. 210 and an automatic pressure control valve 211.

The container 207 may be manufactured in various sizes, but is manufactured in a size of about 500 ml. As the material of the container 207, any metal can be used, but stainless steel is preferably used. Insulating pressure vessels are also used because of their functional or structural properties to maintain the temperature of the heated washer fluid inside the vessel and to withstand a certain pressure inside the vessel.

The heater 208 is electrically connected to the battery 230 of the vehicle and receives the power (DC 12V) from the battery 230 to generate heat. The heater 208 may be configured in the form of a rod rod or coil form.

The low level detector 209 detects the low level of the washer liquid in the container. This is to prevent a situation such as burnout of the heater 208 that may be generated by operating the heater 208 in a state in which the washer fluid is less than the minimum amount required or in the absence of the washer fluid. Therefore, when it is detected by the low water level detector 209 that the level of the washer fluid in the container 207 has fallen below the set value, the heater 208 is not operated, that is, the power supplied to the heater 208 is cut off. It is composed of an electric circuit.

The thermostat 210 automatically adjusts the temperature inside the vessel 207 to a predetermined temperature range. That is, the thermostat 210 senses the temperature inside the container 207 and is switched off when the temperature inside the container exceeds a predetermined temperature range to supply power from the battery 230 to the heater 208. When the temperature inside the container 207 falls below a predetermined temperature range, the switch is turned on to supply power from the battery 230 to the heater 208. At this time, the temperature range may be set in advance at the time of manufacture of the device of the present invention, or may be set at the time of installation of the device of the present invention in a vehicle after shipment of the product.

The automatic pressure regulating valve 211 injects warm washer fluid or washer fluid steam, and automatically opens when the pressure in the container is too high to reduce the pressure in the container. The automatic pressure regulating valve 211 is composed of a composite structure of an electronic valve mechanism and a mechanical valve mechanism internally, the washer liquid and steam outlet 213 is provided toward the electronic valve mechanism, the discharge port for pressure reduction toward the mechanical valve mechanism 214 is provided. In addition, one side of the valve body is provided with a pressure gauge 212 for measuring the pressure in the container. According to such a structure, when the pressure in the container 207 becomes more than a predetermined pressure, the pressure-reducing discharge port 214 automatically opens, and discharges the high pressure air in the container 207 to the outside of the container. Relieve the pressure. This is to prevent the container 207 from exploding due to excessive pressure rise.

On the other hand, the residual washer liquid discharge device for discharging the remaining washer liquid to the outside of the transfer pipe 204 is preferably used on the conduit of the transfer pipe 204 adjacent to the discharge port 213 of the washer liquid heating device 206 as described above. 240 is further installed. This is to prevent the conveying pipe 204 from freezing by the washer liquid remaining in the conveying pipe 204 during the cold weather by discharging the excess washer fluid as such. As shown in the partial enlarged view of the residual washer liquid discharge device 240, when the washer liquid proceeds toward the injection nozzle 205, the valve member 240p is laid down by the pressure to block the discharge hole 240h. The washer fluid continues to flow through the transfer pipe 204, and when the washer fluid is not in use, the pressure of the washer fluid is released and the valve member 240p is returned to its original state, thereby transferring the residual washer fluid discharge device 240 and the injection nozzle 205. Washer liquid remaining in the tube 204 is configured to be discharged to the outside through the discharge hole (240h). In FIG. 2, reference numeral 220 denotes a front (or front and rear) glass window of the vehicle.

On the other hand, Figure 3 is a schematic system configuration of the control unit of the washer liquid heating apparatus of the washer liquid injection apparatus according to the present invention as described above.

As shown in FIG. 3, the control system of the washer fluid heater 206 includes a washer fluid heater main controller 301, a warm washer fluid switch 302, a washer fluid steam switch 303, and a heater on / off. It consists of the switch 250, the low water level sensor 209, the thermostat 210, and the automatic pressure regulating valve 211 (internal solenoid valve mechanism part) provided in the washer liquid heating apparatus 206. Here, the components inside the rectangular box indicated by the dotted lines are components installed inside the vehicle interior and the body. The heater on / off switch 250 may be configured as a separate component from the main controller 301 or may be integrated with the main controller 301 by one chip. The warm washer fluid switch 302 and the washer fluid steam switch 303 are provided at predetermined positions of the front part in which various operation switches around the driver's seat in the vehicle interior are installed. Here, the main controller 301 receives an input signal (command signal through an operation switch and a detection signal through a detector, etc.) from the respective terminal operation switches and electronic devices connected to the main control unit 301 and controls corresponding thereto. A kind of control program for sending a command or performing a process is prepared in advance and stored in the internal memory.

Then, the operation of the washer liquid injector of the vehicle according to the present invention having the above configuration will be described.

When the driver operates the existing washer liquid spraying operation bar provided on the handle shaft of the vehicle to clean the front (or front and rear) window of the vehicle, the washer liquid is stored by the operation of the driving motor 203 and the injection pump 202. The washer liquid in the tank 201 flows into the vessel 207 of the washer liquid heating apparatus 206 once through the injection pump 202. When the washer fluid is sufficiently filled in the container 207 (in the initial stage of operation of the apparatus of the present invention, it takes some time until the washer fluid is filled in the container), after which the washer fluid is placed on one side of the automatic pressure regulating valve 211. It flows out through the washer liquid / steam discharge port 213 provided, is conveyed through the transfer pipe 204, and finally is injected to the windshield 220 of the vehicle through the injection nozzle 205. The series of processes described above is a routine washer liquid spraying process, which is not different from the washer liquid spraying process of the conventional washer liquid spraying apparatus.

In the cleaning of the windshield of the car by the usual washer fluid injection, the driver (user) has a warm washer fluid to solve the problem. When the switch 302 is pressed, the washer fluid heater main controller 301 first checks whether the washer fluid is properly level through the detection signal from the low water level sensor 209 in response to the input signal. As a result of the check, if there is no abnormality in the level of the washer fluid, that is, if the washer fluid is secured in the minimum amount required in the container 207, the heater on / off switch 250 is turned on, and thus the car battery 230 is turned off. Power is supplied to the heater 208 so that the heater 208 generates heat. As the heater 208 generates heat, the temperature of the washer liquid in the container 207 increases, and the temperature of the washer liquid continues to rise to reach a set temperature range (for example, 30 to 40 ° C.) (the arrival time to this set temperature range is approximately 2 If it exceeds the upper limit of (about 4 minutes), the main controller 301 that has been continuously receiving the temperature value of the washer fluid through the temperature controller 210 turns off the heater on / off switch 250 to turn off the battery 230. Power supply to the heater 208 is cut off. When the driver (user) operates the washer fluid injection operation bar in this state, the driving motor 203 and the injection pump 202 operate as described above, whereby the washer fluid is discharged from the washer fluid storage tank 201 by the injection pump ( Pass 202 through the vessel 207. Then, the washer liquid heated to the predetermined temperature, which has been filled in the container 207 by the pushing pressure of the introduced washer liquid, is discharged through the discharge port 213, and the discharged washer liquid is continuously transferred by the transfer pipe 204. It is injected to the vehicle windshield 220 through the injection nozzle 205. That is, the warm washer liquid is injected. Therefore, the snow deposited by the freezing state or heavy snowfall of the windshield can be easily removed.

In addition, when the driver (user) presses the washer liquid steam switch 303, the case in which the warm washer liquid switch 302 is pressed is the same as the overall operating mechanism. However, in this case, since the washer liquid in the container must be boiled, the power supply time from the battery 230 to the heater 208 is longer (for example, about 10 to 15 minutes), and the temperature controller In operation of the main control unit 301 according to the temperature detection value through 210, the difference is that the heater on / off switch 250 is turned off at a different temperature value (in this case, the temperature value of steam) than the former case. It is only. As described above, the operation mechanism is based on a control program stored in the internal memory of the main controller 301 in advance.

In addition, when the washer liquid steam switch 303 is pressed, in the case of the former, the warm washer liquid is finally injected through the injection nozzle 205. In this case, the high temperature and high pressure washer liquid steam is also different. As such, when the high-temperature high-pressure steam is injected, the efficiency of removing snow deposited on the window due to heavy snow can be said to be even higher.

On the other hand, in the above series of processes, when the pressure in the container 207 exceeds a predetermined pressure value (set pressure value), the discharge port 214 of the automatic pressure regulating valve 211 automatically by the pressure. The pressure inside the container 207 is reduced, thereby preventing the container 207 from being exploded by high pressure.

In addition, after the washer liquid is injected through the injection nozzle 205, the washer liquid remaining in the transfer pipe 204 between the injection nozzle 205 and the washer liquid heating device 206 is the washer liquid / steam of the washer liquid heating device 206. The washer fluid is discharged to the outside of the transfer pipe 204 through the washer liquid discharge device 240 installed at the tip of the discharge port 213. Therefore, freezing of the conveying pipe 204 by the washer liquid which remained in the conveying pipe 204 during a cold weather is prevented.

As described above, the washer fluid injector of an automobile according to the present invention is provided with a separate washer fluid heating device capable of supplying warm washer fluid or washer fluid steam by heating the washer fluid between the washer fluid injection pump and the transfer pipe. By spraying warm washer fluid or by spraying the washer fluid, it is possible to clean the windshield of the car even in cold weather or bad weather, and thus there is an advantage that the driver's safe driving can be further enhanced.

Claims (2)

A washer fluid storage tank for storing washer fluid, a washer fluid injection pump and pump driving motor for injecting the washer fluid, a washer fluid delivery pipe for pumping the washer fluid, and a washer fluid injection nozzle for injecting the washer fluid into the vehicle window Washer liquid injector, A device for supplying warm washer liquid or washer liquid steam to the transfer pipe by heating a predetermined amount of washer fluid supplied from the washer fluid storage tank by the injection pump to a predetermined temperature between the washer fluid injection pump and the transfer pipe. It includes a heater that receives power from a car's battery and generates heat, a low level sensor for detecting the low level of the washer fluid in the container, an automatic thermostat for automatically adjusting the temperature inside the container to a predetermined temperature range, and a warm washer or washer fluid. When the pressure inside the container is higher than a certain pressure while injecting steam, the washer fluid heating device is provided with automatic pressure regulating valves for automatically reducing the pressure in the container. Warm washer fluid by the washer fluid heater An operation switch for discharging washer fluid steam is provided, and a washer fluid injector for a vehicle is provided with a washer fluid heater control unit for controlling the entire length of the operation switch and the washer fluid heating device at a predetermined portion inside the body of the vehicle. . The method of claim 1, The washer fluid injector of the vehicle, further comprising a residual washer fluid discharge device for discharging the washer fluid used and discharged to the outside of the delivery pipe on the conduit line of the washer fluid and steam discharge port of the washer fluid heating device. .