JPS6325256Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an operating circuit for a headlamp cleaning device.

Conventionally, the operating circuit of a headlamp cleaning device (hereinafter referred to as a headlamp cleaner) has been designed to be operable only when the headlamp is on or the tail lamp is on, in order to prevent incorrect operation when the headlamp is not in use. There are many. For example, in a pop-up headlamp, the pop-up state of the headlamp is linked to the lighting of the headlamp or tail lamp, so the cleaner operation of the pop-up headlamp is only possible when the headlamp is turned on or the tail lamp is turned on, as described above. . This method has the disadvantage that when a user manually cleans the headlamp after operating the headlamp cleaner, the headlamp must be turned on or the tail lamp must be turned on, which wastes power.

In addition, in the operating circuit of a conventional headlamp cleaner, if the pop-up circuit that pops up the headlamp is disconnected, if the lighting switch is turned on to turn on the headlamp even if the headlamp does not pop up and remains in the down state, the headlamp will turn on. Since the lamp cleaner is ready to operate, turning on the headlamp cleaner switch causes the cleaner to operate, which is a useless operation, and may also cause problems such as liquid splashing on people and objects outside the vehicle, as well as on the vehicle itself. There was a drawback that it was difficult to use.

This idea was made in view of the above points,
A headlamp retractably mounted on the body of a vehicle, a motor for driving the headlamp to a storage position or a use position, an up-operation circuit that energizes the motor to drive the headlamp to the use position; In the retractable headlamp for a vehicle, the headlamp is equipped with a down operation circuit that energizes the motor to drive the headlamp to the retracted position, and a headlamp cleaning device that cleans the headlamp. One end of the motor that drives the cleaning device was connected to a power source, and the other end was connected to ground via a relay switch, and the relay coil of the relay switch was connected via the switch to the above-mentioned up-operation circuit and ground. To provide an operating circuit for a headlamp cleaning device, which enables the operation of a headlamp cleaner when the headlamp is in a pop-up state, regardless of whether the headlamp or tail lamp is lit or not. With the goal.

An embodiment of this invention will be described below with reference to the drawings. In FIG. 1, 11 is a power source. The positive pole of this power supply 11 is connected to a positive power line 11a via the main fusible ring 12, and the negative pole of the power supply 11 is connected to a negative power line 11b. The power line 11a is connected to one end of a motor 14 via a fusible link 13. The other end of the motor 14 is connected to the power supply line 11b via a relay switch 16S in a headlamp cleaner relay 15. Further, one end of the relay coil 16L in the relay 15 is connected to the power supply line 11b via a headlamp cleaner switch 17. Furthermore, a headlamp cleaner 18 is connected as a load to the motor 14. This headlamp cleaner 18 cleans the headlamp 1 when the motor 14 is driven.
The cleaning liquid is sprayed at the point 9. One end of the headlamp 19 is connected to a fixed contact L of a daylight switch 21 in a column switch 20. Also,
The other end of the headlamp 19 is connected to a fixed contact H of the daylight switch 21. Furthermore, the movable contact E of the daylight switch 21 is connected to the power supply line 11b. The column switch 20 is composed of the daylight switch 21 and a passing switch 22 which is a two-way switch. The two movable contacts of the two-path switch are connected to each other and taken out from contact E. Further, the above-mentioned passing switch 22 is provided with fixed contacts H and R. Further, the fixed contact H of the daylight switch 21 and the fixed contact H of the passing switch 22, and the movable contact E of the daylight switch 21 and the movable contact E of the passing switch 22 are connected to each other.

The power line 11a is connected to the midpoint of the filament in the headlamp 19 via a fusible ring 23 and a relay switch 24S in a headlamp relay 24. moreover,
One end of the relay switch 24S is the fuse 2
5. Connected to the fixed contact H of the daylight switch 21 via the high beam indicator 26. Further, the power supply line 11a is connected to the fixed contact R of the passing switch 22 via a fusible link 23 and a relay coil 24L in the headlamp relay 24. Further, the power line 11a is connected to the power line 11b via the fusible link 23, the relay switch 27S in the tail lamp relay 27, the fuse 28, and the tail lamp 29. moreover,
The power line 11a is connected to the lighting switch 30 via the fusible link 23 and the relay coil 27L in the tail lamp relay 27.
It is connected to the fixed contact T of the lighting switch 31 inside. Further, one end of the relay coil 24L is connected to a fixed contact H of the lighting switch 31. Furthermore, the movable contact E of the lighting switch 31 is connected to the power line 11b.
connected to. The above lighting switch 31
has three positions: OFF, . The lighting switch 30 is composed of the lighting switch 31 and a pop-up switch 32 interlocked with the lighting switch 31. In the pop-up switch 32, when the writing switch 31 is OFF, the contact D is closed and the contact U is non-conductive. Then, only when the writing switch 31 is set to or, the contact U closes and the contact D opens.

Furthermore, the power line 11a is connected to a fuse 33.
It is connected to the movable contact E of the pop-up switch 32 via. The fixed contact U of the pop-up switch 32 is connected to the relay coil 16.
It is connected to the contact point U of the pop-up motor 34. Further, the pop-up switch 32 is connected to a movable contact D of a pop-up switch 35. The pop-up switch 35 operates separately from the operation of the lighting switch 30 when the headlamp 10 is turned off when the lighting is turned off.
It is provided for the purpose of raising and lowering. When the pop-up switch 35 is turned off, the D contact is closed and the U contact is open. Here, the pop-up switch 35 has two paths of switches 35a and 35b.
The fixed contacts 5b are connected to each other. Also,
The movable contact U of the pop-up switch 35 is connected to the relay coil 16L and the contact U of the pop-up motor 34. Furthermore, the movable contact D of the pop-up switch 35 is connected to the contact D of the pop-up motor 34.

Further, the power line 11a is connected to a fixed contact B of a relay switch 37S in a pop-up relay 37 via a fusible link 36. The movable contact M of the relay switch 37S is connected to one end of the pop-up motor 34. The other end of the pop-up motor 34 is connected to the power supply line 11b and to the fixed contact E of the relay switch S. Further, the other end of the pop-up motor 34 is connected to a movable contact R of the pop-up motor 34 via a relay coil 37L. Furthermore, the pop-up motor 34 has an earth plate 38.
Built-in, every time the motor rotates 180°,
Switching between contacts UR and RD. The figure shows the headlamp 19 in the down state, contacts UR are closed, but contacts DR are open. On the other hand, when the headlamp 19 is in the up state, the ground plate 38 rotates 180 degrees and contacts U-
R is open and contact D-R is closed. Therefore, the pop-up relay 37 is a relay in which when the coil is de-energized, contacts B-M are non-conductive and contacts E-M are conductive, and when the coil is energized, contacts B-M are conductive and contacts E-M are non-conductive. . Further, the head lamp cleaner relay 15, the head lamp relay 24, and the tail lamp relay 27 are non-conducting due to the coil de-energization.
This is a relay that conducts when the coil is excited.

Next, the operation of this device configured as described above will be explained. For ease of understanding, the operation will be explained in three cases. That is, () when the lighting switch 30 is OFF and the pop-up switch 35 is OFF, () when the lighting switch 30 is ON, () when the lighting switch 30 is OFF and the pop-up switch 35 is ON. be.

() When the lighting switch 30 is OFF and the pop-up switch 35 is OFF.

In this case, the lighting switch 31 is
Since they are in the OFF position, the coils of the head lamp relay 24 and tail lamp relay 27 are not energized, so the relays do not operate. Therefore, the head lamp 11, tail lamp 12, etc. do not light up. In addition, the pop-up switch 3
2, the D contact is closed but the U contact is open, so the contact R-U of the pop-up motor 34
The pop-up relay 37 is not energized. Therefore, since the relay contacts B-M are not closed, no power is supplied to the pop-up motor 34, and the motor remains stationary. At this time, even if the headlamp cleaner switch 17 is turned on, the relay coil 16L of the headlamp cleaner relay 15 is turned on by the pop-up switch 32.
However, since the U contact of the pop-up switch 32 is open and the U contact of the pop-up switch 35 is also open, no voltage is applied to the headlamp cleaner relay 1.
5 does not work.

Therefore, in the above case (), the headlamp cleaner 18 does not operate.

() When lighting switch 30 is ON.

In this case, the lighting switch 31 is in the or position, but in the case of the position, the tail lamp relay 27 is energized and the tail lamp 12 etc. are turned on. In the case of the position , the coils of the tail lamp relay 27 and the head lamp relay 24 are energized, so the tail lamp 1
At the same time as the second class lights up, the headlamp 19 lights up. Here, switch 32 for pop-up
is operated in conjunction with the or of the lighting switch 30, the D contact opens and the U contact closes. Therefore, the current flows from battery 11 → main fusible ring 12 → fuse 33 → U contact of pop-up switch 32 → contact R-U of pop-up motor 34 → relay coil 37L of pop-up relay 37 → ground of battery 11. Contacts B-M of the pop-up relay close.
Therefore, battery 11 -> main fusible link 12 -> fusible link 36 -> contact B-M of pop-up relay 37 -> pop-up motor 34 -> battery 11 ground and current flows, and pop-up motor 34 rotates. do. motor 3
4 rotates 180 degrees, the ground plate 38 also rotates 180 degrees, contacts R-U become non-conductive, current no longer flows to the relay coil 37L of the pop-up relay 37, contacts B-M of the pop-up relay 37 open, and the pop motor 34 stops in a pop-up state. At this time, when the headlamp cleaner switch 17 is turned on, the U contact of the pop-up switch 32 is closed, so the battery 11 → main fusible link 12 → fuse 33 → U of the pop-up switch 32 is closed.
Contact → relay coil 16L of headlamp cleaner relay 15 → headlamp cleaner switch 17 → battery 11 ground, and current flows and the headlamp cleaner relay 15 closes. Therefore, the battery 11 → main fusible link 12 → fusible link 13 → headlamp cleaner motor 14 → headlamp cleaner relay 15 → battery 11 ground and current flows, and the headlamp cleaner motor 14 operates, causing the headlamp cleaner motor 14 to operate. The cleaner 18 is activated.

Therefore, when the lighting switch is ON, the headlamp cleaner switch 17
When turned on, the headlamp 19 is cleaned.

Note that when the lighting switch 30 is ON, the headlamp 19 remains in the UP state regardless of whether the pop-up switch 35 is ON or OFF.

() When lighting switch 30 is OFF and pop-up switch 35 is ON.

First, since the lighting switch 31 is in the OFF position, the head lamp 19, tail lamp 29, etc. are not lit. Also, the D contact of the pop-up switch 32 is closed, the D contact of the pop-up switch 35 is open, and the U contact is closed, so the battery 11 → main fusible link 12 → fuse 33 → pop-up switch 32 D contact → pop-up switch 35
U contact → contact R- of pop-up motor 34
U→Relay coil 37L of pop-up relay 37→Battery 11 ground and flow, contacts B-M of pop-up relay 37 close, ()
The pop-up motor 34 operates in the same way as in the case of 1, and the headlamp 19 goes into the pop-up state and stops. At this time, when the headlamp cleaner switch 17 is turned on, the battery 11 → the main fusible link 12 → the fuse 33 → the D contact of the pop-up switch 32 → the U contact of the pop-up switch 35 → the relay of the headlamp cleaner relay 15. Current flows through the coil 16L→headlamp cleaner switch 17→battery 11 ground, the headlamp cleaner relay 15 is activated, and the headlamp cleaner 18 is activated as in ().

Therefore, turn off the lighting switch 30.
Even when the headlamp 19 and tail lamp 29 are off, the headlamp cleaner 18 can be operated to clean the headlamp 19 by turning on the pop-up switch 35.

In the above embodiment, an excitation type relay is used as the headlamp cleaner relay 15, but an electronic circuit such as a timer operation may be used.

Further, the two-line switches 35a and 35b in the pop-up switch 35 in the above embodiment
The connection between the switch 35 and peripheral circuits is not limited to the embodiment, but as shown in FIG.
The fixed contacts a and 35b are made independent of each other, and the fixed contact of the switch 35b is connected to the fixed contact D of the pop-up switch 32.
A similar operation is performed even if the fixed contact of the fuse 33 is connected to one end of the fuse 33.

Further, this invention can be applied to a headlamp washer, a headlamp wiper, and a headlamp wiper with a washer.

As described above, according to this invention, power is supplied to the headlamp cleaner relay 15 from the circuit in the pop-up state of the pop-up lamp system, and the head lamp cleaner 18 can be operated only when the head lamp 19 is in the pop-up state. Therefore, the headlamp cleaner 18 does not operate when the headlamp 19 is down.
It is possible to prevent unnecessary scattering of the washer fluid and staining of people and objects outside the vehicle and the own vehicle.

Also, tail lamp 29 lighting and head lamp 19
Since this has nothing to do with lighting, when the user wants to manually clean the headlamp 19 after operating the headlamp cleaner 18, the cleaner 18 can be operated without turning on the tail lamp 29 or the headlamp 19, which wastes power. Not at all.

In addition, even if the headlamp 19 remains down due to a disconnection on the power supply side from the pop-up motor circuit, the headlamp cleaner relay 15 is a circuit that receives power from the circuit in which the headlamp 19 is in the pop-up state, so the relay will The structure is such that the above-mentioned useless cleaner operation cannot occur due to incorrect operation of the headlamp cleaner switch due to lack of power supply.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an operating circuit of a headlamp cleaning device showing one embodiment of this invention, and FIG. 2 is a circuit diagram showing another embodiment of this invention. 15...Relay for headlamp cleaner, 17
...Headlamp cleaner switch, 18...
Headlamp cleaner, 19...Headlamp,
30... Lighting switch, 34... Pop-up motor, 37... Pop-up relay.

Claims (1)

[Scope of utility model registration request] A headlamp retractably mounted on the body of a vehicle, a motor for driving the headlamp to a storage position or a use position, an up-operation circuit that energizes the motor to drive the headlamp to the use position; In the retractable headlamp for a vehicle, the headlamp is equipped with a down operation circuit that energizes the motor to drive the headlamp to the retracted position, and a headlamp cleaning device that cleans the headlamp. One end of the motor that drives the cleaning device was connected to a power source, and the other end was connected to ground via a relay switch, and the relay coil of the relay switch was connected via the switch to the above-mentioned up-operation circuit and ground. An operating circuit for a headlamp cleaning device characterized by: