JP2004182012A - Interior light for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior light for a vehicle capable of varying a light quantity according to whether it is used as a map lamp or a room lamp. <P>SOLUTION: In the interior light for a vehicle, bulbs 24a and 25a are attached on a cabin of the vehicle, the supply of electric power from an on-vehicle battery to the bulbs 24a to 25a is turned on and off by lighting switches 27 and 28, and a vehicle door interlocking switch 40 is turned on when a vehicle door is opened. When the vehicle door interlocking switch 40 is valid by a selection switch 26 and the vehicle door is opened, the bulbs 24a and 25a are turned on even if the lighting switches 48 and 28 are turned off, and illumination light quantities of the bulbs 24a and 25a when the vehicle door interlocking switch 40 is turned on are smaller than illumination light quantities of the bulbs 24a and 25a when the lighting switches 27 and 28 are turned on by a resistor 40 as an automatic dimming means. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle interior light, in particular, a bulb mounted in a vehicle interior and shared by a map lamp and a room lamp, and an illumination switch for turning ON / OFF a power supply from a vehicle-mounted battery to the bulb. A vehicle door interlocking switch that detects when the vehicle door is in an open state and turns on, and a valve that turns off the light switch when the vehicle door is open when the vehicle door interlocking switch is selected to be enabled / disabled. The present invention relates to a vehicle interior light provided with a selection switch for turning on regardless of the above.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle interior, an overhead module (vehicle interior light) provided with a room lamp, a map lamp (also referred to as a spot lamp) and the like in a single housing and provided on a ceiling of the vehicle interior has been known. (For example, see Patent Document 1).
[0003]
FIG. 4 is a perspective view of a main part of a vehicle cabin showing an example of such an overhead module, and FIG. 5 is an exploded perspective view showing an internal structure of the overhead module.
[0004]
In FIG. 4, reference numeral 1 denotes a ceiling of a vehicle, 2 denotes a housing for an overhead module provided on the ceiling 1, 3 denotes a lens for both a room lamp and a map lamp held by the housing 2, and 4 denotes sunglasses and the like. A holder that can be stored, 5 is a switch for a room lamp, 6 and 6 ′ are switches for a map lamp, 7 is a switch for opening and closing a sunroof, and 8 is a switch for a sunroof tilt.
[0005]
As shown in FIG. 5, the housing 2 holds a lamp housing 9 on the back surface of the housing 2 and also has a lens mounting window 10, a room lamp switch mounting portion 11, and map lamp switch mounting holes 12, 12. ', A sunroof switch installation hole 13 and the like are formed.
[0006]
The room lamp switch 5 generally has three contacts, one of which is always on, one of which is always off, and one of which is turned on when the vehicle door is open, so that the user can arbitrarily select it. Has become.
[0007]
The lamp housing 9 holds a boat-shaped bulb 14 for a room lamp and high-luminance bulbs 15, 15 'for a map lamp. The room lamp switch 5 is provided in the room lamp switch mounting portion 11, the map lamp switches 6 and 6 'are provided in the map lamp switch installation holes 12 and 12', and the sunroof opening / closing switch 7 is provided in the sunroof switch installation hole 13. It is attached so as to be positioned, and is connected to a predetermined position by a wiring 16.
[0008]
[Patent Document 1]
JP-A-2000-272409 (paragraph number 0002-0004, FIG. 5 to FIG. 5)
[0009]
[Problems to be solved by the invention]
By the way, in the overhead module as a vehicle interior light configured as described above, the boat-shaped bulb 14 for the room lamp and the high-intensity bulbs 15 and 15 'for the map lamp are separately provided. In addition to the increase in the size of the housing 2, the number of parts has increased and the product cost has risen.
[0010]
Therefore, the boat-shaped bulb 14 for the room lamp is abolished, and high brightness bulbs 15 and 15 'for the map lamp are provided with a room lamp function.
[0011]
However, since such a lamp for a map lamp has higher brightness than the boat-shaped bulb 14 used for a conventional room lamp due to its function, the high-luminance bulbs 15 and 15 'for a map lamp are used as indoor nighttime illumination. There is a problem that it is too bright to use the same.
[0012]
In addition, when set to be turned on in conjunction with the opening of the vehicle door, the high-intensity bulbs 15, 15 'for the map lamp are set to the original map lamp regardless of day and night and whenever the frequently used vehicle door is opened. There was also a problem that wearing it for use would cause heavy consumption.
[0013]
An object of the present invention is to provide a vehicle interior light that can vary the amount of light when used as a map lamp and when used as a room lamp in order to solve the above problem.
[0014]
[Means for Solving the Problems]
In order to achieve the object, a vehicle interior light according to the present invention includes a bulb mounted in a vehicle interior, an illumination switch for turning ON / OFF a power supply from a vehicle-mounted battery to the bulb, and a vehicle door in an open state. A vehicle door interlocking switch that is turned on upon detection of the presence of the vehicle door, and when the vehicle door interlocking switch is selected to be enabled / disabled, the valve is turned on when the vehicle door is opened regardless of whether the illumination switch is turned off. A vehicle interior light provided with a selection switch, wherein an automatic light dimming is performed such that the illumination light amount of the bulb when the vehicle door interlocking switch is turned on is smaller than the illumination light amount of the bulb when the illumination switch is turned on. Means are provided.
[0015]
According to such a configuration, the valve is mounted in the vehicle interior, power supply from the vehicle-mounted battery to the valve is turned ON / OFF by the illumination switch, and the vehicle door interlocking switch is turned ON when the vehicle door is in the open state, When the vehicle door is opened while the vehicle door interlocking switch is enabled by the selection switch, the bulb is turned on regardless of whether the illumination switch is OFF, and the illumination of the bulb when the illumination switch is turned ON by the automatic dimming means. The illumination light quantity of the bulb when the vehicle door interlock switch is turned on is smaller than the light quantity.
[0016]
Further, the vehicle interior light of the present invention detects a bulb mounted in the vehicle interior, an illumination switch for turning on / off power supply from a vehicle-mounted battery to the bulb, and detecting that the vehicle door is open. A vehicle door interlocking switch that is turned on by a switch, and a selection switch that turns on the bulb when the vehicle door is opened when the vehicle door is opened when the vehicle door interlocking switch is selected to be enabled or disabled. In the vehicle interior light, an illumination range restricting means for automatically increasing the illumination range of the bulb when the vehicle door interlocking switch is turned on, than the illumination range of the bulb when the illumination switch is turned on. It is characterized by having been provided.
[0017]
According to such a configuration, the valve is mounted in the vehicle interior, power supply from the vehicle-mounted battery to the valve is turned ON / OFF by the illumination switch, and the vehicle door interlocking switch is turned ON when the vehicle door is in the open state, When the vehicle door is opened while the vehicle door interlocking switch is enabled by the selection switch, the bulb is turned on regardless of whether the illumination switch is OFF, and the illumination of the bulb when the illumination switch is turned ON by the illumination range regulating means. The illumination range of the bulb when the vehicle door interlock switch is turned on is wider than the range.
[0018]
Further, the vehicle interior light of the present invention detects a bulb mounted in the vehicle interior, an illumination switch for turning on / off power supply from a vehicle-mounted battery to the bulb, and detecting that the vehicle door is open. A vehicle door interlocking switch that is turned on by a switch, and a selection switch that turns on the bulb when the vehicle door is opened when the vehicle door is opened when the vehicle door interlocking switch is selected to be enabled or disabled. In the vehicle interior light, an illumination direction regulating means for automatically switching an illumination direction of the bulb when the illumination switch is turned on and an illumination direction of the bulb when the vehicle door interlocking switch is turned on is provided. It is characterized by the following.
[0019]
According to such a configuration, the valve is mounted in the vehicle interior, power supply from the vehicle-mounted battery to the valve is turned ON / OFF by the illumination switch, and the vehicle door interlocking switch is turned ON when the vehicle door is in the open state, When the vehicle door is opened while the vehicle door interlocking switch is enabled by the selection switch, the bulb is turned on regardless of whether the illumination switch is OFF, and the illumination of the bulb when the illumination switch is turned ON by the illumination direction regulating means. The direction and the illumination direction of the bulb when the vehicle door interlock switch is turned on are switched.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a vehicle interior light according to the present invention will be described with reference to the drawings.
[0021]
1A is a front view of a vehicle interior light of the present invention, FIG. 1B is a side view of the vehicle interior light of the present invention, and FIG. 1C is a cross-sectional view of the vehicle interior light of the present invention. FIG. 2 is a circuit diagram of a vehicle interior light according to the present invention.
[0022]
In FIG. 1, a vehicle interior light 20 includes a lamp housing 21 having a housing shape, a lamp lens 22 for closing a front opening 21 a of the lamp housing 21, and a lamp formed by the lamp housing 21 and the lamp lens 22. Two bulb units 24 and 25 for the map lamps located in the chamber 23, a selection switch 26 provided on the lamp housing 21, and a lighting switch 27 for the driver's seat for lighting the bulb 24 a of one bulb unit 24. A lighting switch 28 for the driver's seat for lighting the bulb 25a of the other bulb unit 25, a holder 29 holding a circuit board (not shown) electrically connected to each of the switches 26 to 28, and a circuit board. And a connector unit 30 connected thereto.
[0023]
The valve units 24 and 25 include conductive plates 24b and 25b connected to a circuit board. The conductive plates 24b and 25b hold the valve valves 24a and 25a and can supply power to the valves 24a and 25a at the same time. Has become.
[0024]
In FIG. 2, reference numeral 31 denotes a vehicle-mounted battery (normally 12 V in the case of an ordinary vehicle) as a power supply. The vehicle-mounted battery 31 is connected to the circuit board via a plurality of connection terminals 32, 33, and 34 of the connector unit 30, and specifically, a driver connecting the bulb 24a and the lighting switch 27 in series. The side connection line 35, the passenger side connection line 36 connecting the bulb 25a and the lighting switch 28 in series, and the selection switch connection line 37 having the selection switch 26 are connected in parallel.
[0025]
The selection switch connection line 37 is connected via a diode 38 to the driver side connection line 35 between the bulb 24 a and the illumination switch 27. The selection switch connection line 37 is connected via a diode 39 between the bulb 25 a of the passenger side connection line 36 and the illumination switch 28.
[0026]
One end of the selection switch connection line 37 is connected to the connection terminal 32, and the other end is connected to the connection terminal 34. A vehicle door interlock switch 40 that is turned on when the vehicle door is open is provided between the vehicle-mounted battery 31 and the connection terminal 34. Further, a resistor 41 is connected in series between the selection switch 26 of the selection switch connection line 37 and the diode connection.
[0027]
In such a configuration, when the illumination switch 27 is turned on, the bulb 24a on the driver's side is turned on, so that it can be used as a map lamp. At this time, the other bulb 25a is prevented from being simultaneously turned on unexpectedly by the diode 38.
[0028]
Similarly, when the lighting switch 28 is turned on, the bulb 25a on the passenger's seat side is turned on, so that the bulb 25a can be used as a map lamp. At this time, the other bulb 24a is not unexpectedly turned on simultaneously by the diode 39.
[0029]
Further, when the vehicle door (not shown) is opened while the selection switch 26 is selecting the ON state when the door is opened, the vehicle door interlocking switch 40 is turned on and the valves 24a and 25a are simultaneously turned on.
[0030]
At this time, since the resistor 41 is connected in series between the selection switch 26 of the selection switch connection line 37 and the diode connection, the lighting switch 27 or the lighting switch 28 is turned on, and the bulbs 24a and 25a are turned on. The amount of illumination light is smaller than when it is lit.
[0031]
Therefore, the illumination light quantity of the bulbs 24a and 25a when the door is opened is not excessively bright, and the durability of the bulbs 24a and 25a can be reduced by reducing the consumption of the bulbs 24a and 25a.
[0032]
By the way, in the above-described embodiment, the case where the amount of illumination is different between the map lamp and the room lamp by connecting the resistor 41 in series is disclosed. However, as shown in FIG. A reflector 50 is provided as an illumination range restricting means for reflecting a light beam emitted from the bulb light point P as a parallel light with the bulb light point P of 25a as a focal point. When the illumination switches 27 and 28 are turned on, a reflector 50 for a map lamp is provided. When a narrow range is illuminated and the vehicle door interlocking switch 40 is turned on, as shown in FIG. 3B, the reflector 50 is expanded to reflect a light beam emitted from the bulb light point P as diffused light. This can reduce the feeling of being too bright for the user even when illuminating a wide range for the room lamp.
[0033]
A shade (not shown) is provided in the vicinity of the bulbs 24a and 25a as an illumination direction regulating means for blocking a light beam going to the outside of the vehicle. When the vehicle door interlocking switch 40 is turned on, the shade is separated from the bulbs 24a and 25a to use the light beam directed to the outside of the vehicle body as it is. It is also possible to illuminate the entire interior of the vehicle.
[0034]
【The invention's effect】
With the vehicle interior light of the present invention configured as described above, the amount of light can be varied between when used as a map lamp and when used as a room lamp.
[Brief description of the drawings]
1 shows a vehicle interior light according to an embodiment of the present invention, (A) is a front view of the vehicle interior light of the present invention, (B) is a side view of the vehicle interior light of the present invention, ( (C) is a sectional view of the vehicle interior light of the present invention.
FIG. 2 is a circuit diagram of a vehicle interior light according to the present invention.
3A and 3B show a vehicle interior light according to a second embodiment of the present invention, wherein FIG. 3A is an explanatory view of a main part when a map lamp is used, and FIG. 3B is an explanatory view of a main part when a room lamp is used. is there.
FIG. 4 is a perspective view of an essential part of a vehicle interior showing an example of a conventional overhead module as a vehicle interior light.
FIG. 5 is an exploded perspective view showing the internal structure of an overhead module as a conventional vehicle interior light.
[Explanation of symbols]
24a bulb, 25a bulb, 26 selection switch, 27 illumination switch, 28 illumination switch, 31 vehicle battery, 40 resistance (automatic dimming means).

Claims (3)

A valve mounted in a vehicle compartment, an illumination switch for turning on / off a power supply from a vehicle-mounted battery to the valve, a vehicle door interlocking switch for turning on when a vehicle door is open, and A selection switch for turning on or off the bulb regardless of whether the illumination switch is OFF when the vehicle door is opened when selecting valid / invalid and selecting valid / invalid for the door interlocking switch,
A vehicle interior, comprising: an automatic dimming means for reducing an illumination light amount of the bulb when the vehicle door interlocking switch is turned on, as compared with an illumination light amount of the bulb when the illumination switch is turned on. light. A valve mounted in a vehicle compartment, an illumination switch for turning on / off a power supply from a vehicle-mounted battery to the valve, a vehicle door interlocking switch for turning on when a vehicle door is open, and A selection switch for turning on or off the bulb regardless of whether the illumination switch is OFF when the vehicle door is opened when selecting valid / invalid and selecting valid / invalid for the door interlocking switch,
An illumination range restricting means is provided for automatically increasing an illumination range of the bulb when the vehicle door interlocking switch is turned on, than an illumination range of the bulb when the illumination switch is turned on. Interior lights for vehicles. A valve mounted in a vehicle compartment, an illumination switch for turning on / off a power supply from a vehicle-mounted battery to the valve, a vehicle door interlocking switch for turning on when a vehicle door is open, and A selection switch for turning on or off the bulb regardless of whether the illumination switch is OFF when the vehicle door is opened when selecting valid / invalid and selecting valid / invalid for the door interlocking switch,
A vehicle, comprising: an illumination direction regulating means for automatically switching an illumination direction of the bulb when the illumination switch is turned on and an illumination direction of the bulb when the vehicle door interlocking switch is turned on. Interior light.

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