KR100197805B1 - Automatically operated side-mirror water eliminating device when wiper is operated - Google Patents

Abstract

The present invention relates to a side mirror dewatering device which operates automatically during the wiper operation for driving the vibration element and the heating wire in a number of times proportional to the operating speed of the wiper in rainy weather. In the side mirror moisture removal device operating in conjunction with the driving wiper drive device, the wiper is vibrated by a number of times proportional to the wiper operation speed during the wiper operation according to the selective switching operation of the wiper positioning means. If not, the electronic control means for vibrating the vibration element for a predetermined time each time the operating switching means is operated, and the heating wire is operated together with the vibration element vibration, and connected to the electronic control means, and the water removal operation is performed according to the on / off operation. The operating switching means and the inside of the side mirror, The vibration device receives a high frequency high voltage signal applied from the magnetic control means and vibrates, and a heating wire installed inside the side mirror to receive power from the electronic control means to dissipate heat.

Description

Drain device of side mirror that operates automatically when wiper works

The present invention relates to a device for removing water from a side mirror for a vehicle that allows a driver to secure a good side clock while driving. More specifically, the wiper for driving a vibration device and a heating wire in a number of times proportional to the operating speed of the wiper in rainy weather. The present invention relates to a side mirror drain device that operates automatically.

In general, good forward, side and rear vision must be ensured during driving for safe driving. FIG. 1 is a structural diagram showing a conventional structure of a device for removing moisture from the side mirror to secure a good side clock. In the related art, a heating wire 12 and a vibration device 13 are provided inside the side mirror 14. When the driver asks for water removal (ie, operates a side mirror water removal switch (not shown), etc.), the electronic mirror 15 operates the heating wire 12 and the vibration device 13 for a predetermined time, and the side mirror is operated. (14) Remove moisture from the surface.

FIG. 2 is a circuit diagram showing a wiper driving circuit for securing a good front clock. When the rain or snow falls, the wiper provided on the front windshield is constantly operated to clean the front windshield. The operation is outlined as follows.

When the mode of the wiper switch is the intermittent mode 25, the terminal of © is earthed through the wiper switch 29, and the transistor TR3 is turned on. The relay 34 is excited, and the contact is connected to the P1 axis. , A terminal, ⓕ-P1- terminal, and a circuit connected to the + S of the ⓔ wiper switch 29 is formed. Therefore, power is supplied to the +1 terminal of the wiper motor 30 so that the motor 30 starts to rotate continuously. When the circuit of + B and S of the cam plate 31 is formed by the rotation of the motor 30, The capacitor C3 is discharged through the circuits of the resistor R3 terminal and the + -terminal and the S-terminal and the terminal ⓕ of the cam plate 31, and when the discharge is completed, the terminal, ⓓ at the + B side of the cam plate 31. An earth circuit is formed through the capacitor C3 terminal and INT1 and INT2 of the wiper switch 29, and the capacitor C3 is charged in the reverse direction, so that the potential at the ⓑ point is positive. As a result, when the wiper blade (not shown) is reciprocated once and comes to the stop position, the terminal ⓓ is earthed via the cam plate 31, and the transistor TR3 is turned off with the transistor TR3 at the negative potential. As described above, when the transistor TR3 is turned off, the suction force of the relay 34 is lost, the contact 34 of the relay is connected to P2, the + S of the wiper switch 29 is earthed, and the motor 30 is stopped. The capacitor C3 is discharged to the circuit of the terminal, ⓓ earth and at the same time, the circuit of the terminal, ⓓ-cam plate 31 + S, E-battery 33-terminal, ⓕ-resistance R3, and the discharge is completed. When the charging is started in the first state. When the potential at the point ⓐ rises again to reach a predetermined voltage, the transistor TR3 is turned on again and the above operation is repeated. In the capacitor C3, the time from discharge to charge becomes the intermittent operation time, so that any time can be selected by varying the value of the resistor R3.

When the wiper switch is in the low speed mode 26, a circuit is formed at + B and +1 of the wiper switch 29 so that power is supplied to the +1 terminal of the wiper motor 30, and the wiper motor 30 is operated at low speed. Start to rotate Accordingly, the cam plate 31 also rotates, where the fixed contacts + B and + S are connected when the wiper arm and the blade (not shown) are outside the stop position. Then, when the wiper switch is turned off, the current supplied from the battery 33 is the circuit of the cam contact 31 + S-relay 34 contact P2- wiper switch 29 + S-wiper switch 29 +1. It continues to flow to the +1 terminal of the wiper motor (30) through. When the wiper blade (not shown) comes immediately before the stop position, the + B and + S connection circuits of the cam plate 31 are cut off and the wiper motor 30 tries to stop. However, since the motor 30 continues to rotate due to inertia and the cam plate 31 also rotates, a circuit of + S and E is formed and the +1 terminal of the motor 30 is earthed, so that the electric brake is applied and the motor 30 It stops immediately and the wiper blade (not shown) stops at the designated stop position.

When the wiper switch 29 is in the high speed mode, + B and +2 are connected and power is supplied to the +2 terminal of the wiper motor 30, so that the wiper motor 30 rotates at high speed. ) Rotates at high speed to operate the wiper blade (not shown) at high speed. The stop operation at this time is the same as the low speed mode.

However, such a conventional dewatering device is operated only when the driver operates the dewatering switch (or button) to remove the water on the surface of the side mirror, so that the driver must operate the dewatering switch frequently during rainy weather. There was an inconvenience, and there was a problem that prevented the safe operation by operating the water removal switch frequently during operation, and also has a problem that a good side clock is not secured for a time until the water removal is performed after operating the water removal switch. . In addition, the conventional dehydration device has the problem that the correct dehydration is not made when a lot of rain falls by operating the same regardless of the amount of rain falling.

The present invention has been made to solve the above-mentioned conventional problems, the object of which is to operate the vibration element and the heating wire in the operating time proportional to the operating speed of the wiper during the wiper operation, and the operation of the wiper switch when the wiper is inactive According to the present invention to provide a side mirror dewatering device that automatically operates when the wiper operation for operating the vibration element and the heating wire.

1 is a block diagram showing a conventional side mirror moisture removal device.

2 is a block diagram showing an example of a wiper drive device.

3 is a block diagram showing a side mirror dewatering device according to the present invention.

4 is a circuit diagram showing the internal configuration of the electronic control unit shown in FIG.

5 is a timing diagram showing the operation of the vibration device during wiper driving.

6 is a timing diagram showing the operation of the dehydration device when the wiper is not operated.

7 is a flowchart showing the control procedure of the moisture removal operation of the side mirror according to the present invention.

* Explanation of symbols for main parts of the drawings

36: wiper switching part 37: electronic control unit

38: moisture removal switch 40: side mirror

40a: heating wire 40b: vibration device

37a: microcomputer 37b: power-on reset unit

T: Transformer Q1, Q2: Switching Transistor

As a constituent means for achieving the object of the present invention as described above, the present invention is a side mirror moisture removal device which operates in conjunction with the wiper drive device to operate in accordance with the selection switching operation of the wiper switching means, the wiper switching means of When the wiper is operated according to the selective switching operation, the vibrating element is vibrated by the number of times proportional to the wiper operation speed.When the wiper is not operated, the vibrating element is vibrated for a predetermined time whenever the operating switching means is operated. Electronic control means for operating together, operation switching means connected to the electronic control means to indicate whether the water removal operation according to the on / off operation, and a high-frequency high-voltage signal installed in the side mirror applied from the electronic control means It is installed inside the side mirror and the vibration device that is applied and vibrates. It is provided with a heating wire that emits heat when supplied with power from said electronic control means.

Hereinafter, with reference to the accompanying drawings will be described in more detail the configuration and operation according to an embodiment of the present invention.

3 is a block diagram schematically showing the configuration of the side mirror bite removal apparatus according to the present invention, and comprises a stop mode 36a, an intermittent operation mode 36b, a low speed operation mode 36c, and a high speed operation mode 36d. A wiper switching unit 36 for operating the wiper and an electronic control unit 37 for adjusting and operating the operating time of the heating wire 40a and the vibration device 40b according to the switching operation of the wiper switching unit 36; An operation switch 38 for operating the side mirror dewatering device and a heating wire 40a installed in the side mirror to supply power from the electronic control unit 37 to dissipate heat to evaporate small moisture on the surface of the side mirror. And a vibration device 40b that receives the high pressure of a predetermined frequency from the electronic control unit 37 and vibrates to remove moisture from the side mirror surface.

FIG. 4 is a circuit diagram showing the internal configuration of the electronic control unit 37 shown in FIG. 3, which generates a drive signal and continuously changes the frequency of the drive signal in a predetermined frequency range and switches the wiper switching unit 36. FIG. Microcomputer 37a for controlling the generation time and number of driving signals according to the selection operation, and driving transistors Q1 and Q2 for applying the driving signal output from the microcomputer 37a to the transformer T. ), A transformer T for boosting the driving signals applied from the driving transistors Q1 and Q2 to a high voltage and applying them to the vibration device 40b, and the operation of the microcomputer 37a when the operation switch 38 is turned on. And a power-on reset unit 37b for resetting the microcomputer 37a until it is stabilized.

Next, the operation of the water removal apparatus according to the above-described configuration will be described with reference to the timing diagrams of FIGS. 5 and 6.

First, when the operation switch 38 is turned on, the power-on reset unit 37b resets the microcomputer 37a for a predetermined time from when the operation switch 38 is turned on. After the set time has elapsed, the normal power is supplied to the microcomputer 37a to start the operation.

That is, the microcomputer 37a checks the switching operation of the wiper switching unit 36. If the wiper switching unit 36 is set to the off mode, the microcomputer 37a operates as shown in the timing diagram shown in FIG. do. That is, an arbitrary high frequency signal is generated during the setting time t from the time when the operation switch 38 is turned on, so that the shaking element 40b vibrates for the setting time t. In addition, the heating wire 40a is operated for a predetermined time t ₁ from the time when the operation switch 38 is turned on, and then, the operation of the vibration element 40b and the heating wire 40a is stopped for a predetermined time t _{1 to} t ₂ . This protects the device from damage by excessive high voltage and high frequency.

When the wiper switching unit 36 is selected as the intermittent mode, the drive signal is generated while the frequency is changed for t time at each setting time t _A as shown in the timing diagram shown in FIG. Thus, the vibration device 40b operates in a t _A period.

When the wiper switching unit 36 is selected as the low speed mode, the microcomputer 37a changes the frequency of the driving signal for t time at each setting time t _B as shown in the timing diagram shown in FIG. While generating. Thus, the vibration device 40b operates in a t _B period. Then, when the wiper switching unit 36 is selected as the high speed mode, the microcomputer 37a changes the driving signal for a time t every time t _c as shown in the timing diagram shown in FIG. While the vibration device 40b operates in a period of t _c .

In the above, faster than the dither element (40b) operating period t _B in had the dither element (40b) operating period t _A more flutter at low speed mode, the device (40b) the operation period t _B is shorter in the intermittent mode, the low speed mode The operation period t _C of the vibration device 40b in the mode is shorter. Therefore, as the one-time reciprocating time of the wiper blade (not shown) becomes faster, that is, the amount of rain falls, the vibration device 40b vibrates frequently.

As described above, the drive signal generated by the microcomputer 37a is applied in phase and reverse phase to the respective drive transistors Q1 and Q2 through the resistors R1 and R2. Thus, the driving transistors Q1 and Q2 alternately apply a high frequency drive signal to the primary coil of the transformer T, and the high frequency drive signal is boosted to a high voltage by the transformer T and is shaken through the secondary coil. Is applied to 40b.

7 is a flowchart showing the overall control flow of the water removal operation according to the present invention, the operation of the water removal device with reference to this as follows.

First, the microcomputer 37a checks whether the wiper is operating (710). This can be determined by checking the selection mode of the wiper switching unit 36.

In the above, if the wiper does not operate, that is, the wiper switching portion 36 is off, the flow advances to step 702 to check whether the operation switch 38 is on. Here, if the operation switch 38 is turned off, the process returns to step 701 to wait for the wiper to operate or to turn on the operation switch. If the operation switch is turned on above, the operation proceeds to step 703 to set the vibration device 40b for a set time. Vibrate once. Here, one oscillation time is t hours.

If the wiper operates in step 701, the flow advances to step 704 to determine whether the wiper operation is an intermittent operation. This determination is made by checking the switching selection of the wiper switching unit 36 as described above. Here, if the wiper is operated in the intermittent mode, the process proceeds to step 706 to check whether the operation switch is turned on, and if the operation switch is turned on, the operation proceeds to step 709 without operating in the intermittent mode and the vibration device 40b is vibrated once. Let's do it. However, if the operation switch is off here, the flow proceeds to step 708 to vibrate the vibrating element 40b in the intermittent mode, which causes the vibrating element 40b to t every t _A periods, as shown in the timing diagram shown in FIG. It vibrates for time.

If the wiper does not operate in the intermittent mode in step 704, the process proceeds to step 705 to check whether the wiper operates in the low speed mode. Here, if not operating in a low speed mode, because the wiper operates at a high speed, sikineunde forward element (40b) Shake the process proceeds to step 710 in a high-speed mode, which is as help timing shown in FIG. 5 (c), t _C The vibrating element 40b is vibrated every cycle.

In step 705, if the wiper is operating in the low speed mode, the process proceeds to step 707 to check whether the operation switch 38 is in the on state, and in this case, if the operation switch 38 is in the on state, the operation proceeds to step 711. If the operation switch 38 is not turned on once and the operation switch 38 is not turned on, the operation proceeds to step 712 where the vibration device 40b is shaken at every cycle of t _B as shown in the timing diagram shown in FIG. ) Is operated to cause the vibration device 40b to vibrate at low speed.

As described above, after vibrating the vibration device 40b, the flow proceeds to step 713 to operate the heating wire for a set time (t ₁ ), and proceeds to step 714 to check again whether the operation switch is on, then the operation switch Is turned on, the operation returns to the initial step 701 and the above operation is repeated. If the operation switch is turned off, the operation is terminated.

As described above, according to the present invention, if the wiper is operated even if the driver does not operate the operation switch, the side mirror's moisture removal device vibrates the vibration device 40b at a period proportional to the operating speed of the wiper, The generated water can be properly removed, and the vibration of the vibration element for a predetermined time every time the operation switch is turned on can also remove water from the side mirror surface at the request of the driver.

As described above, according to the present invention, even when the driver does not operate the bite removal switch in rainy weather, the vibration device attached to the side mirror vibrates in proportion to the speed of the wiper, so that the driver does not disperse the driver's surroundings while driving according to the amount of water. Removal is effected, and thereby has an excellent effect to ensure safe operation.

Claims (2)

In the side mirror moisture removal device operating in conjunction with a wiper drive device driven in accordance with the selective switching operation of the wiper switching means, the wiper operation speed is proportional to the wiper operation speed in the wiper operation according to the selective switching operation of the wiper switching means. Electronic control means for vibrating the vibrating element, vibrating the vibrating element for a predetermined time each time the operation switching means is operated when the wiper is not in operation, and operating the heating wire together with the vibrating element, and connected to the electronic control means. Operation switching means for dehydration operation in accordance with the off operation, a vibration device is installed in the side mirror and vibrating by receiving a high frequency high voltage signal applied from the electronic control means, and installed inside the side mirror Heat dissipated by receiving power from control means Having also water removal apparatus of the side mirror to operate automatically when the wiper operation, characterized by a. 2. The electronic control means according to claim 1, wherein the electronic control means checks the switching operation of the wiper switching means in generating a drive signal while varying the frequency within a set frequency range, and the predetermined time is performed every time the operation switch is turned on when the wiper is not operated. A microcomputer that generates a drive signal during the wiper operation, and generates a drive signal at a period proportional to the operation speed of the wiper; a base is connected to the drive signal output terminal of the microcomputer; and a collector is connected to the primary coil of the transformer. A driving transistor, a transformer for boosting a high frequency driving signal applied through the driving transistor, and a vibration device connected to the secondary coil, and a power-on reset unit for resetting the microcomputer for a predetermined time when the operation switch is turned on. Automatically during wiper operation Draining device of the working side mirror.

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