KR100391725B1 - Apparatus of head lamp for vehicle - Google Patents

Abstract

The present invention provides a head lamp device in which one lamp is used in common for a low beam and a high beam, and a vehicle head lamp that can be easily installed and operated without changing a separate circuit regardless of a (+) (-) control vehicle. Relates to a device. The present invention is connected to the lamp via a high beam driving solenoid coil from the HI terminal and the common terminal of the head lamp connector, by the operation of the relay operated in accordance with the signal applied from the LO terminal and HI terminal of the head lamp connector In a head lamp device of a vehicle commonly used for low beam and high beam as a single lamp by supplying power to a lamp via a ballast, a first lamp for connecting the LO terminal at all times between the head lamp connector and the relay And a two-circuit relay including a switch, a second switch connecting the HI terminal when the relay is turned on, and a relay coil connected to the HI terminal and the common terminal to operate the switch.

Description

Headlamp device for vehicles {APPARATUS OF HEAD LAMP FOR VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp device for a vehicle. More specifically, in a headlamp device in which one lamp is commonly used for a low beam and a high beam, a vehicle headlamp that can be installed regardless of a (+) (-) control vehicle is provided. Relates to a device.

Conventionally, the control method of a switch for turning on a lighting device of a vehicle is mainly a common (-) pole of a battery, and controls the (+) side by switching on, or conversely, There is a way to use the positive pole in common and the negative pole for control. At this time, the (-) terminal among the (+) and (-) terminals of the battery is always grounded to the vehicle body.

1 is a circuit diagram of a conventional vehicle headlamp device, FIG. 2 is a detailed circuit diagram showing a diode connection state of a conventional (+) control vehicle, and FIG. 3 is a detailed circuit diagram showing a diode connection state of a conventional (-) control vehicle.

As shown in FIG. 1, when the vehicle is normally connected to the vehicle and the head lamp switch is left in the low beam position, the common terminal 11 of the connector 10 for the head lamp connected from the vehicle wire harness is turned on. And current flows from the LO terminal 13 toward the relay 17 to conduct the relay contact "E", and the input of the ballast (BALLAST) 15 by the battery 16 power source connected to the relay 17 contact "E". The current flows in the line, and the lamp 14 lights up.

On the other hand, when the vehicle head lamp switch is turned on to the high beam position, the connection with the relay 17 is disconnected, and thus the lamp 14 is turned off while a current flows in the high beam solenoid coil (not shown) to direct the lamp 14 in the high beam direction. Move to.

In order to solve the problem that the lamp 14 is turned off when the high beam is turned on, as shown in FIG. 2, a diode is connected between the contacts "A" and "B" in a direction in which current flows from B to A.

When the high beam is turned on, the contacts "B" and "A" are in the forward direction and current flows, and the relay 17 is attracted and the ballast 15 is operated to turn on the light, and at the same time, a current is generated between the contacts "B" and "C". The high beam solenoid is activated to produce a high beam pattern. At this time, the high beam indicator on the instrument panel lights up.

When the low beam is turned on, the contact between "A" and "B" is reversed so that no current flows from the LO terminal 13 to the HI terminal 12, so that the high beam solenoid does not operate, and also the high beam indicator of the instrument panel. Does not light up.

In the case of a (-) control car, as shown in FIG. 3, a diode is connected in the opposite direction to that of the (+) control car. Therefore, the positive and negative control vehicles, respectively, must change the direction of the diode connected between the contacts "A" and "B" according to the control.

Therefore, in the conventional vehicle headlamp device, since one lamp is used in common for the low beam and the high beam, a contradiction occurs in that the high beam pilot is turned on in the instrument panel even when the low beam is turned on. In order to solve the problem, a diode was inserted to block the high beam electric signal so that the high beam pilot was not turned on at the instrument panel when the low beam was lit, but at this time, depending on whether it was a (+) control vehicle or a (-) control vehicle, Failure to artificially change the direction will cause malfunctions and the device will not operate correctly. Therefore, in the head lamp apparatus in which one lamp is used in common for the low beam and the high beam as described above, the diode between the (+) terminal and the (-) terminal is changed every time according to the (+) and (-) control method. There is a problem that it is difficult to install because of the hassle to change the wiring circuit.

In addition, since a single lamp is used for both low beam and high beam, the lamp is mechanically moved backward to light during high beam lighting to satisfy its function. At this time, motor or solenoid coil and magnet are used to move the lamp. In case of using solenoid and magnet, the + and-directions of the electrodes entering the solenoid coil should always be fixed. This is because the direction of the magnetic field is determined by the direction of the current entering the coil. Therefore, in the related art, the electrode direction of the solenoid coil for the movement of the lamp also needs to be changed every time according to the (+) and (-) control methods.

Therefore, the present invention is to solve the above-mentioned conventional problems, in the head lamp device in which one lamp is used in common for the low beam and high beam, a separate circuit regardless of the (+) (-) control vehicle It is an object of the present invention to provide a headlamp device for a vehicle that can be installed and operated easily without changing.

1 is a circuit diagram of a conventional vehicle headlamp device.

2 is a detailed circuit diagram illustrating a diode connection state of a conventional (+) control vehicle.

3 is a detailed circuit diagram illustrating a diode connection state of a conventional (-) control vehicle.

4 is a circuit diagram of a vehicular headlamp device of the present invention.

5 is a detailed circuit diagram showing a solenoid coil of the present invention.

* Description of the symbols for the main parts of the drawings *

10: connector 11: common terminal

12: HI terminal 13: LO terminal

14 lamp 15 ballast

16: battery 17: relay

20: two-circuit relay 21: first switch

22: second switch 23: relay coil

24: solenoid coil D1 ~ D4: diode

The vehicle head lamp device according to the present invention for achieving the above object is connected to the lamp via a high beam driving solenoid coil from the HI terminal and the common terminal of the head lamp connector, the LO terminal and HI of the head lamp connector In the head lamp device of an automobile commonly used for low beam and high beam as a lamp by supplying the power of the battery to the lamp through the ballast by the operation of a relay operated according to the signal applied from the terminal, the head lamp A two-circuit relay comprising a first switch for always connecting the LO terminal between the connector and the relay, a second switch for connecting the HI terminal when the relay is on, and a relay coil connected to the common terminal with the HI terminal to operate the switch. 2, but the second switch of the first switch that is always connected to receive an electrical signal from the LO terminal of the connector And applying an electrical signal through the first contact to drive a ballast operating relay to light a lamp with a low beam, and when a voltage is applied from the HI terminal, electricity is applied to the relay coil to operate the relay. The first switch is turned off, the second switch is turned on, and electricity from the HI terminal is applied to terminal 6 through terminal 5 to drive the ballast operation relay, and at the same time, the high beam driving solenoid from the HI terminal and the common terminal. A high beam driving solenoid coil is operated via a coil to light the lamp with a high beam.

In addition, a diode circuit is formed between the HI terminal, the common terminal of the headlamp connector, and the both ends of the high beam driving solenoid coil so that current flows in the solenoid coil always in one direction regardless of the direction of the input current. It is another feature to do.

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

4 is a circuit diagram of a vehicular headlamp device of the present invention, and FIG. 5 is a detailed circuit diagram of the solenoid coil of the present invention.

As shown, the present invention is connected to the high beam driving solenoid coil 24 from the HI terminal 12 and the common terminal 11 of the head lamp connector 10, the LO of the head lamp connector 10 One lamp by supplying the power of the battery 16 to the lamp 14 via the ballast 15 by the operation of the relay 17 is operated in accordance with the signal applied from the terminal 13 and the HI terminal 12 In the headlamp device of a vehicle commonly used for low beam and high beam, the first switch 21 for always connecting the LO terminal 13 between the headlamp connector 10 and the relay 17. ), A second switch 22 connecting the HI terminal 12 when the relay is on, and a relay coil 23 connected to the HI terminal 12 and the common terminal 11 to operate the switches 21 and 22. Install a two-circuit relay 20 comprising:

Here, the electrical signal is received from the LO terminal 13 of the connector 10 and the electrical signal is applied through the second and the first contact points of the first switch 21 which are always connected to the ballast operation relay 17. The lamp 14 is turned on by the low beam by driving.

In addition, when a voltage is applied from the HI terminal 12, electricity is applied to the relay coil 23 to operate the relay, so that the first switch 21 is turned off and the second switch 22 is turned on. Electricity from the HI terminal 12 is applied to terminal 6 through terminal 5 to drive the ballast operating relay 17, and at the same time, the high beam driving solenoid from the HI terminal 12 and the common terminal 11 The coil 24 is operated to light the lamp 14 with a high beam.

In addition, a bridge circuit is formed by using diodes D1 to D4 between both ends of the HI terminal 12 and the common terminal 11 of the headlamp connector 10 and the high beam driving solenoid coil 24. Regardless of the direction of the current, the current flows in the solenoid coil 24 in one direction at all times.

Referring to the operation of the present invention configured in this way in more detail as follows.

Since the present invention receives an electric signal applied to the headlamp on the vehicle side through the two-contact relay 20, electricity is supplied to the ballast 15 regardless of whether the vehicle electrical system is a (+) control or a (-) control. To supply.

In more detail, first, when the low beam is applied in FIG. 4, when the electric signal is received from the LO terminal 13 of the headlamp connector 10, the first switch 21 is always connected to the two-circuit relay 20. ) It is applied to one line of ballast operation relay 17 via the 2nd and 1st contact. At this time, since the (-) line exits from the common terminal 11 and is applied to the other side of the ballast operating relay 17, the lamp 14 is turned on with a low beam.

When the high beam is turned on, when a voltage is applied from the HI terminal 12, electricity is applied to the coil 23 of the two-contact relay 20, and the relay is turned on, and the low connected to the first switch 21 terminal 2 of the relay is turned on. The beam line is disconnected as the contact moves to number three. On the other hand, the electricity coming from the HI terminal 12 is applied to the 5 terminal of the contact of the switch 2 switch 22 of the relay and is applied to the 6 terminal through the contact according to the relay operation, so that one line of the ballast operation relay 17 is applied. Is applied to. The other one is connected to the common terminal 11 so that the ballast 15 is activated to light the lamp 14.

At this time, since the signal line applied from the vehicle is applied through the two-circuit relay 20, the vehicle is turned on regardless of whether the vehicle is a (+) control or a (-) control and the high beam indicator is normally operated.

In addition, referring to the operation of the high beam driving solenoid coil 24, when the high beam signal is applied to the A and B terminals from the HI terminal 12 and the common terminal 11, as shown in FIG. 5, the solenoid 24 side Connected to the C and D terminals of the lamp 14 is moved in the direction of the arrow to form a pattern of high beams.

In this case, in order to make the pattern of the high beam, the lamp 17 should always be moved only in the direction of the arrow, so that electricity of a certain polarity should be applied to the C and D terminals even when electricity of any polarity is applied to the A and B terminals.

Therefore, in the present invention, when the positive electrode is applied to the A terminal from the HI terminal 12, the positive electrode is applied to the C terminal through the diode D1 connected in the forward direction, and the negative terminal to the B terminal. Since electricity of is applied, the negative pole electricity is applied to the solenoid coil 24 via the D terminal through the diode D4.

On the contrary, when the positive terminal of the terminal is applied from the HI terminal 12 to the terminal A, the terminal of the negative terminal is applied to the terminal D through the diode D3 connected in the reverse direction. When the positive electrode is applied to the B terminal, the positive electrode is applied to the C terminal through the forward diode D2. Thus, no matter what polarity is applied to terminals A and B, electricity of the same polarity is always applied to terminals C and D. Therefore, the direction of the magnetic field generated in the solenoid coil 24 is always constant, so that the lamp 14 is always It works only in the direction of the arrow.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

As described above, according to the vehicle headlamp device according to the present invention, in the case of a conventional vehicle headlamp device, a malfunction may occur if the direction of the diode is not artificially changed depending on whether it is a (+) control vehicle or a (-) control vehicle. There is a problem that the device does not operate correctly, but the present invention has an effect that can be easily installed and operated without changing a separate circuit regardless of the (+) (-) control vehicle using a two-contact relay circuit. In addition, a constant current is always supplied through the bridge diode to the solenoid coil used to move the lamp during the high beam operation, so that the electrode direction of the solenoid coil is not changed according to the (+) or (-) control method during installation. It also works.

Claims (2)

It is connected to the lamp 14 from the HI terminal 12 and the common terminal 11 of the head lamp connector 10 via the high beam driving solenoid coil 24, The power of the battery 16 passes through the ballast 15 by the operation of the relay 17 operated according to the signals applied from the LO terminal 13 and the HI terminal 12 of the connector 10 for the headlamp. In the head lamp device of a motor vehicle used in common for a low beam and a high beam with one lamp 14 by being supplied to (14), A first switch 21 for always connecting the LO terminal 13 between the headlamp connector 10 and the relay 17, a second switch 22 for connecting the HI terminal 12 when the relay is turned on; The two-circuit relay 20 is connected to the HI terminal 12 and the common terminal 11 and includes a relay coil 23 for operating the switches 21 and 22. Receives an electrical signal from the LO terminal 13 of the connector 10 and applies an electrical signal through the second and first contacts of the first switch 21, which is always connected to drive the ballast operating relay 17 Turns on the lamp 14 with a low beam, When a voltage is applied from the HI terminal 12, electricity is applied to the relay coil 21 to operate a relay, so that the first switch 21 is turned off, and the second switch 22 is turned on so that the HI terminal is turned on. Electricity input from (12) is applied to terminal 6 through terminal 5 to drive the ballast operating relay 17, A vehicle headlamp, which lights the lamp 14 with a high beam by operating the high beam driving solenoid coil 24 from the HI terminal 12 and the common terminal 11 via the high beam driving solenoid coil 24. Device. The method of claim 1, Current input by forming bridge circuits with diodes D1-D4 between the HI terminal 12 and the common terminal 11 of the headlamp connector 10 and the both ends of the high beam driving solenoid coil 24. Regardless of the direction of the vehicle head lamp device, characterized in that the current flows in one direction always in the solenoid coil (24).