WO2024009935A1 - Vehicle light fixture - Google Patents

Vehicle light fixture Download PDF

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Publication number
WO2024009935A1
WO2024009935A1 PCT/JP2023/024574 JP2023024574W WO2024009935A1 WO 2024009935 A1 WO2024009935 A1 WO 2024009935A1 JP 2023024574 W JP2023024574 W JP 2023024574W WO 2024009935 A1 WO2024009935 A1 WO 2024009935A1
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WO
WIPO (PCT)
Prior art keywords
lamp
light emitting
lighting circuit
emitting section
vehicle
Prior art date
Application number
PCT/JP2023/024574
Other languages
French (fr)
Japanese (ja)
Inventor
宏基 酒井
西村　泰成
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2024009935A1 publication Critical patent/WO2024009935A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/10—Position lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/20—Direction indicator lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/35—Brake lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/45—Reversing lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/55—Daytime running lights [DRL]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a vehicular lamp, for example a vehicular lamp used in a vehicle such as an automobile.
  • a vehicle lamp includes, for example, a semiconductor light emitting element or other light source, a circuit board on which electronic components for controlling the light source are mounted, and a housing that houses these (see, for example, Patent Document 1). .
  • each of the plurality of lamp units typically has a separate housing, and the light source of each lamp unit and its control circuit are mounted in each housing. .
  • the space occupied by the vehicle light In order to reduce the risk that such a vehicle light will interfere with other vehicle parts arranged around it, it is desirable to reduce the space occupied by the vehicle light.
  • the present invention has been made in view of these circumstances, and one exemplary objective of a certain aspect of the present invention is to save space in a vehicle lamp having a plurality of lamp units.
  • a vehicle lamp includes a first lamp unit including a first lamp housing, a first light emitting part disposed in the first lamp housing, and a second lamp unit.
  • the second lamp unit includes a housing and a second light emitting section disposed within the second lamp housing.
  • the first lamp unit is provided with a first lighting circuit connected to the first light emitting section.
  • the first lighting circuit can be connected to the second light emitting section via external wiring, and is configured to operate the first light emitting section and the second light emitting section as marker lights with the same function.
  • a plurality of light emitting parts provided in separate lamp units can be operated as the same type of marker light by a common lighting circuit.
  • the other lamp units do not need to prepare a space for installing the lighting circuit, and can be made smaller. Therefore, compared to a typical existing design in which a light emitting part and its lighting circuit are provided for each lamp unit, it is possible to design a vehicle lamp including a plurality of lamp units in a space-saving manner as a whole. Furthermore, the number of lighting circuits included in the vehicle lamp can be reduced, which can also lead to a reduction in manufacturing costs.
  • the second light emitting section may be powered and controlled from the first lighting circuit through external wiring. In this way, it is possible to eliminate the need for a lighting circuit for the second light emitting part in the second lamp unit, and it is possible to downsize the second lamp housing.
  • the first lamp housing may be placed adjacent to the second lamp housing.
  • the first lamp housing may be placed adjacent to the second lamp housing.
  • the first light emitting section may form a continuous line-shaped light emitting region together with the second light emitting section. In this way, the vehicle lamp can provide a complete light-emitting design by combining the two light-emitting parts.
  • the volume of the first lamp housing is larger than the volume of the second lamp housing. This makes it easy to secure the installation space for the lighting circuit in the first lamp unit, and also contributes to miniaturization of the second lamp unit.
  • the first lighting circuit is housed in a metal case, and the first lamp unit may further include an optical unit that can operate as a headlamp and a second lighting circuit connected to the optical unit.
  • the second lighting circuit may be placed adjacent to the metal case. In this way, heat dissipation from the first lamp unit can be promoted. That is, although the second lighting circuit for the headlamp can be a relatively large heat source, the metal case of the first lighting circuit adjacent thereto can be used as a heat radiation path from the second lighting circuit.
  • FIG. 1 is a schematic front view of a vehicle lamp according to an embodiment.
  • 2 is a partial cross-sectional view schematically showing a cross section taken along line AA of the vehicle lamp shown in FIG. 1.
  • FIG. FIG. 2 is a block diagram of the vehicle lamp shown in FIG. 1.
  • FIG. 2 is a schematic cross-sectional view taken along the line BB of the vehicle lamp shown in FIG. 1.
  • FIG. 1 is a schematic front view of a vehicle lamp 10 according to an embodiment.
  • FIG. 2 is a partial sectional view schematically showing a cross section taken along line AA of the vehicle lamp 10 shown in FIG.
  • FIG. 3 is a block diagram of the vehicle lamp 10 shown in FIG. 1.
  • FIG. 4 is a schematic cross-sectional view taken along line BB of the vehicle lamp 10 shown in FIG.
  • the vehicular lamp 10 is a vehicular headlamp device having a pair of headlamp units arranged on the left and right sides in front of the vehicle.
  • the pair of headlamp units have generally symmetrical structures and have substantially the same configuration, so one headlamp unit is shown in FIG. 1.
  • the vehicular lamp 10 can be installed, for example, in a freight vehicle such as a truck, or other automobiles.
  • the vehicle lamp 10 includes a plurality of lamp units, here a first lamp unit 20 and a second lamp unit 30.
  • the first lamp unit 20 and the second lamp unit 30 are arranged side by side so that the second lamp unit 30 is located above the first lamp unit 20.
  • the first lamp unit 20 is used as a headlamp, and includes a first optical unit 21 for providing a high beam and a second optical unit 22 for providing a low beam.
  • the first optical unit 21 and the second optical unit 22 can adopt various known configurations as appropriate, and therefore will not be described in detail here.
  • the first optical unit 21 may be configured to perform so-called ADB (Adaptive Driving Beam) control, which dynamically and adaptively controls the high beam light distribution pattern based on the surrounding state of the vehicle.
  • ADB control detects vehicles in front of the vehicle, such as a preceding vehicle or an oncoming vehicle, and forms a dark area in the area corresponding to the vehicle in front of the high beam light distribution pattern. , it is possible to reduce or prevent glare that may be given to the vehicle in front.
  • the second lamp unit 30 includes at least one type of marker light, for example a turn signal lamp 31.
  • a turn signal lamp 31 As for the turn signal lamp 31, various known configurations can be adopted as appropriate, so a detailed description thereof will not be given here.
  • the first lamp unit 20 includes a first light emitting section 23 that is used as at least one type of marker light, a clearance lamp in this embodiment.
  • the second lamp unit 30 includes a second light emitting section 33 that is used as a marker light having the same function as the first light emitting section 23, that is, a clearance lamp.
  • the first light emitting section 23 and the second light emitting section 33 can also operate as daylight running lamps.
  • the first lamp unit 20 includes a first lamp housing 11a having a first lamp body 12a and a first transparent cover 14a
  • the second lamp unit 30 has a second lamp body 12b and a second transparent cover 14b.
  • a second lamp housing 11b is provided.
  • the light-transmitting cover is attached to the lamp body so as to cover the front opening of the lamp body.
  • the lamp body is made of a suitable material such as a general-purpose resin material
  • the light-transmitting cover is made of a suitable light-transmitting material such as a synthetic resin material having light-transmitting properties or glass.
  • the first lamp body 12a and the second lamp body 12b can each be individually attached to the vehicle body.
  • the first lamp housing 11a is arranged adjacent to the second lamp housing 11b.
  • the first lamp housing 11a and the second lamp housing 11b are each supported by the vehicle body, and these two lamp housings do not contact each other and are arranged with a slight gap as shown in the figure.
  • the first light emitting section 23 is arranged inside the first lamp housing 11a, and the second light emitting section 33 is arranged inside the second lamp housing 11b. Both the first light emitting section 23 and the second light emitting section 33 are configured to have a linearly elongated light emitting shape.
  • the first light emitting section 23 is arranged inside the first lamp housing 11a so as to frame at least a part of the outer periphery (in this example, the left part as shown in FIG. 1) of the first optical unit 21 and the second optical unit 22. may be placed at the end.
  • the second light emitting part 33 is attached to an end within the second lamp housing 11b so as to frame at least a part of the outer periphery (in this example, the left part as shown in FIG. 1) of the turn signal lamp 31. may be placed.
  • the first light emitting unit 23 includes a first light source 24 and a first light guide 25, as shown in FIG.
  • the second light emitting section 33 includes a second light source 34 and a second light guide 35.
  • the light source may be of a type comprising, for example, a semiconductor light emitting element such as an LED or other light emitting element and a circuit board such as a printed circuit board on which such light emitting element is mounted, or may be any other light source. good.
  • the light guide is made of a suitable transparent material such as a synthetic resin material or glass, and has an end face that faces the light source and receives the incident light L1 from the light source, and a side face that emits the light incident from this end face. A rod-shaped light guide may be used. The light L2 emitted from the light guide is emitted to the outside from the light-transmitting cover.
  • the first light emitting section 23 and the second light emitting section 33 form a continuous line-shaped light emitting region.
  • the two light emitting parts are arranged with their respective ends close to each other, so that the entire light emitting area is viewed by the viewer as if it were one continuous light emitting area.
  • both the first light emitting section 23 and the second light emitting section 33 extend linearly in the vertical direction.
  • One end of the first light emitting section 23 and one end of the second light emitting section 33 are arranged close to each other, so that the first light emitting section 23 and the second light emitting section 33 as a whole are arranged in the vertical direction. It is visually recognized by the viewer as a single linear light-emitting area extending over the area.
  • the light emitting part extends in a simple straight line, but it can take various shapes, such as a polygonal line with at least one bent part, a curved line with at least one curved part, or a combination thereof.
  • a plurality of light emitting parts may be arranged in one lamp unit. In this way, by appropriately designing the shape and arrangement of the light-emitting parts of each lamp unit and combining these light-emitting parts, it is possible to create various shapes or parts of them, such as figures drawn with straight or curved lines, characters, symbols, etc. It can be expressed by light emission.
  • the vehicle lamp 10 can provide a complete light-emitting design by combining a plurality of light-emitting parts.
  • the light emitting unit is not limited to the combination of a light source and a light guide as described above, and may take various other forms.
  • the light emitting section may be a so-called edge light that receives incident light from a light source from one end surface of a plate-shaped light guide and emits it from the other end surface of the light guide.
  • the light emitting section may include an arrangement of a large number of light emitting elements, such as an LED array, and light may be emitted directly from these light emitting elements to the transparent cover.
  • the light emitting unit may include at least one optical member, such as an inner lens or a reflector, for directing the emitted light L2 toward the transparent cover or for controlling the emitted light L2, if necessary.
  • the light emitting section may include a heat radiating member for radiating heat generated by the light source.
  • the first lamp unit 20 is provided with a first lighting circuit 26 connected to the first light emitting section 23.
  • the first lighting circuit 26 can be connected to the second light emitting section 33 via external wiring 40, and connects the first light emitting section 23 and the second light emitting section 33 to a marker light with the same function (in this example, a clearance lamp or a light emitting section). is configured to operate as a time running lamp). In this way, the lighting circuit for the same type of marker lights that are mounted in a plurality of lamp units is provided only in one of the lamp units.
  • the second light emitting section 33 is powered and controlled from the first lighting circuit 26 through the external wiring 40. Therefore, the second lamp unit 30 is not provided with a lighting circuit for the second light emitting section 33.
  • the first lamp unit 20 includes a high beam lighting circuit 27 connected to the first optical unit 21 and a second optical unit 22, as shown in FIG.
  • a low beam lighting circuit 28 is also provided. These lighting circuits are arranged within the first lamp housing 11a.
  • the second lamp unit 30 is provided with a lighting circuit 36 which is disposed within the second lamp housing 11b and is connected to the turn signal lamp 31.
  • the lighting circuit 36 for the turn signal lamp 31 may be arranged adjacent to the second lamp body 12b on the back side of the second lamp unit 30, for example.
  • a lighting circuit is a control device that controls a corresponding light source, and is configured as a circuit board on which necessary electronic components are mounted, and is often referred to as an LDM (LDE Driving Module).
  • a first lamp unit 20 and a second lamp unit 30 are connected to the vehicle side, and the first lamp unit 20 and the second lamp unit 30 are connected to each other.
  • a wire harness 38 is provided to connect to.
  • the wire harness 38 is arranged outside the first lamp unit 20 and the second lamp unit 30.
  • the wire harness 38 includes the above-mentioned external wiring 40 that connects the first lighting circuit 26 to the second light emitting section 33. Further, the wire harness 38 includes a first power supply cable 42 and a second power supply cable 44 for supplying power to the first lamp unit 20 and the second lamp unit 30.
  • the first power supply cable 42 connects the first lamp unit 20 (more specifically, the first lighting circuit 26, the high beam lighting circuit 27, and the low beam lighting circuit 28) to an in-vehicle battery provided on the vehicle side. Connect to.
  • the second power supply cable 44 connects the second lamp unit 30 (more specifically, the lighting circuit 36) to the vehicle battery.
  • the wire harness 38 may further include a communication cable for communication between a control device such as a vehicle ECU provided on the vehicle side and the first lamp unit 20 and/or the second lamp unit 30.
  • the wire harness 38 includes a first connector 46 and a second connector 48 for connection to the first lamp unit 20 and the second lamp unit 30.
  • An external wiring 40 and a first power supply cable 42 extend from the first connector 46
  • an external wiring 40 and a second power supply cable 44 extend from the second connector 48 .
  • the first connector 46 and the second connector 48 are provided at both ends of the external wiring 40.
  • the first lamp unit 20 is provided with a first socket 50 to which the first connector 46 is connected, and the second lamp unit 30 is provided with a second socket 52.
  • the first socket 50 is provided on the back surface of the first lamp housing 11a (for example, the first lamp body 12a), and the second socket 52 is provided on the back surface of the second lamp housing 11b (for example, the second lamp body 12b). There is.
  • the first socket 50 is connected to the first lighting circuit 26, the high beam lighting circuit 27, and the low beam lighting circuit 28 through internal wiring in the first lamp housing 11a, and the second socket 52 is connected to the second lamp housing 11a. It is connected to the second light emitting section 33 and the lighting circuit 36 for the turn signal lamp 31 by internal wiring inside the turn signal lamp 11b.
  • the first lamp unit 20 and the second lamp unit 30 are provided separately from each other by the manufacturer of the vehicle lamp 10, and the first lamp housing 11a and the second lamp unit 30 are provided separately from each other.
  • the housings 11b may be individually attached to the vehicle body.
  • the wire harness 38 may be prepared separately from the vehicle lamp 10 and connected to the first lamp unit 20 and the second lamp unit 30 during this assembly process.
  • the vehicular lamp 10 may be provided as one unit by the manufacturer of the vehicular lamp 10, with the wire harness 38 connected to the first lamp unit 20 and the second lamp unit 30.
  • FIG. 4 shows the lower part of the first lamp unit 20.
  • a first lighting circuit 26 and a high beam lighting circuit 27 are installed at the bottom of the first lamp body 12a within the first lamp housing 11a.
  • a high beam lighting circuit 27 is attached to the bottom surface of the first lamp body 12a, and a first lighting circuit 26 is attached above it.
  • a first optical unit 21 for high beam is installed above these lighting circuits in the first lamp housing 11a, and a first lighting circuit 26 is arranged between the first optical unit 21 and the lighting circuit 27. ing.
  • the first lighting circuit 26 is housed in a first metal case 54, and the high beam lighting circuit 27 is housed in a second metal case 56, which are adjacent to each other.
  • These metal cases are made of a metal material with excellent thermal conductivity, such as aluminum or an aluminum alloy (for example, a metal material with higher thermal conductivity than stainless steel), or other highly thermally conductive materials.
  • the high beam lighting circuit 27 can become a relatively large heat source, especially when ADB control is enabled. Therefore, in addition to the second metal case 56 of the high beam lighting circuit 27, by using the first metal case 54 of the adjacent first lighting circuit 26 as a heat radiation path from the lighting circuit 27, the first lamp unit 20 can promote heat dissipation.
  • the first light emitting section 23 and the second light emitting section are separately provided in these lamp units.
  • 33 can be operated by the first lighting circuit 26 as a similar type of marker light (clearance lamp or daytime running lamp).
  • the second lamp unit 30 does not need to have a lighting circuit for the second light emitting section 33, and can be made smaller. Therefore, the vehicle lamp 10 can be designed to take up less space as a whole than the existing general design in which a light emitting part and its lighting circuit are provided for each lamp unit. Furthermore, the number of lighting circuits included in the vehicle lamp 10 can be reduced, which can also lead to a reduction in manufacturing costs.
  • the volume of the first lamp housing 11a is larger than the volume of the second lamp housing 11b.
  • the second lamp housing 11b is thinner than the first lamp housing 11a (for example, in the longitudinal direction of the vehicle, in the left-right direction in FIG. 2). In this way, it becomes easy to secure a space for installing the first lighting circuit 26 in the first lamp unit 20, and it also helps to reduce the size of the second lamp unit 30.
  • the first lamp unit 20 and the second lamp unit 30 are arranged adjacent to each other vertically, but other arrangements are also possible, such as, for example, adjacent to each other laterally. Furthermore, it is not essential that these lamp units be adjacent to each other.
  • the first lamp unit 20 is arranged at one end of the vehicle (for example, the front left end of the vehicle) and the second lamp unit 30 is arranged at another end of the vehicle (for example, the front right end of the vehicle).
  • the lamp unit 20 and the second lamp unit 30 may be placed apart.
  • the vehicle lamp 10 is installed as a headlamp at the front of the vehicle is described as an example, but the vehicle lamp 10 according to the embodiment can be used as a rear combination lamp, for example.
  • the invention may also be applied to lamps installed in other parts of the vehicle.
  • the case where the first light emitting section 23 and the second light emitting section 33 operate as a clearance lamp or a daytime running lamp is described as an example.
  • other types of marker lights may be divided and arranged into a plurality of lamp units. Therefore, in some embodiments, the first light emitting section 23 and the second light emitting section 33 may operate as other marker lights such as a turn signal lamp, a tail lamp, a stop lamp, and a backup lamp.
  • the vehicle lamp 10 may include three or more lamp units.
  • the light emitting parts provided in each of the lamp units may be operated as the same type of marker light by a common lighting circuit provided in any of the lamp units.
  • the vehicle lamp 10 further includes a third lamp unit including a third lamp housing and a third light emitting section disposed within the third lamp housing, and the first lighting circuit is connected to the third lamp unit via external wiring. It can be connected to three light emitting parts, and may be configured to operate the first light emitting part, the second light emitting part, and the third light emitting part as a marker light with the same function.
  • Embodiments may also be expressed in the following numbered sections.
  • a first lamp unit including a first lamp housing and a first light emitting section disposed within the first lamp housing; a second lamp unit including a second lamp housing and a second light emitting section disposed within the second lamp housing;
  • the first lamp unit is provided with a first lighting circuit connected to the first light emitting section,
  • the first lighting circuit is connectable to the second light emitting section via external wiring, and is configured to operate the first light emitting section and the second light emitting section as a marker light with the same function. Characteristic vehicle lighting equipment.
  • 2. The vehicular lamp according to item 1, wherein the second light emitting section is powered and controlled by the first lighting circuit through the external wiring. 3. 3. 3.
  • the vehicle lamp according to item 1 or 2 wherein the first lamp housing is disposed adjacent to the second lamp housing. 4. 4. The vehicular lamp according to item 3, wherein the first light emitting section forms a continuous linear light emitting area together with the second light emitting section. 5. 5. The vehicle lamp according to any one of Items 1 to 4, wherein a volume of the first lamp housing is larger than a volume of the second lamp housing. 6.
  • the first lighting circuit is housed in a metal case,
  • the first lamp unit further includes an optical unit that can operate as a headlamp, and a second lighting circuit connected to the optical unit, 6.
  • the present invention can be used in a vehicle lamp, for example, a vehicle lamp used in a vehicle such as an automobile.
  • Vehicle lamp 11a First lamp housing, 11b Second lamp housing, 20 First lamp unit, 23 First light emitting section, 26 First lighting circuit, 30 Second lamp unit, 33 Second light emitting section, 40 External wiring .

Abstract

A vehicle light fixture (10) is provided with: a first lamp unit (20) comprising a first lamp housing (11a) and a first light emitting portion (23) which is disposed in the first lamp housing (11a); and a second lamp unit (30) comprising a second lamp housing (11b) and a second light emitting portion (33) which is disposed in the second lamp housing (11b). The first lamp unit (20) is provided with a first lighting circuit (26) which is connected to the first light emitting portion (23). The first lighting circuit (26) is connectable to the second light emitting portion (33) via an external wire (40), and is configured to operate the first light emitting portion (23) and the second light emitting portion (33) as signaling lamps of the same function.

Description

車両用灯具Vehicle lights
　本発明は、車両用灯具、例えば自動車などの車両に用いられる車両用灯具に関する。 The present invention relates to a vehicular lamp, for example a vehicular lamp used in a vehicle such as an automobile.
　一般に、車両用灯具は、例えば半導体発光素子またはその他の光源と、この光源を制御する電子部品を実装した回路基板と、これらを収納するハウジングとを備えている（例えば、特許文献１参照。）。 In general, a vehicle lamp includes, for example, a semiconductor light emitting element or other light source, a circuit board on which electronic components for controlling the light source are mounted, and a housing that houses these (see, for example, Patent Document 1). .
特開２０１５－２３０８３４号公報Japanese Patent Application Publication No. 2015-230834
　車両用灯具が複数のランプユニットから構成される場合、典型的には、複数のランプユニットのそれぞれが別々のハウジングを有し、個々のハウジングに各ランプユニットの光源とその制御回路が搭載される。このような車両用灯具がその周りに配置されるほかの車両部品と干渉するリスクを低減するうえで、車両用灯具の占有スペースを小さくすることが望まれる。 When a vehicle lamp is composed of a plurality of lamp units, each of the plurality of lamp units typically has a separate housing, and the light source of each lamp unit and its control circuit are mounted in each housing. . In order to reduce the risk that such a vehicle light will interfere with other vehicle parts arranged around it, it is desirable to reduce the space occupied by the vehicle light.
　本発明はこうした状況に鑑みてなされたものであり、そのある態様の例示的な目的のひとつは、複数のランプユニットをもつ車両用灯具の省スペース化にある。 The present invention has been made in view of these circumstances, and one exemplary objective of a certain aspect of the present invention is to save space in a vehicle lamp having a plurality of lamp units.
　上記課題を解決するために、本発明のある態様の車両用灯具は、第１ランプハウジングと、第１ランプハウジング内に配置された第１発光部とを備える第１ランプユニットと、第２ランプハウジングと、第２ランプハウジング内に配置された第２発光部とを備える第２ランプユニットと、を備える。第１ランプユニットには、第１発光部と接続された第１点灯回路が設けられている。第１点灯回路は、外部配線を介して第２発光部と接続可能であり、第１発光部と第２発光部を同一機能の標識灯として動作させるように構成される。 In order to solve the above problems, a vehicle lamp according to an aspect of the present invention includes a first lamp unit including a first lamp housing, a first light emitting part disposed in the first lamp housing, and a second lamp unit. The second lamp unit includes a housing and a second light emitting section disposed within the second lamp housing. The first lamp unit is provided with a first lighting circuit connected to the first light emitting section. The first lighting circuit can be connected to the second light emitting section via external wiring, and is configured to operate the first light emitting section and the second light emitting section as marker lights with the same function.
　この態様によると、複数のランプユニットを備える車両用灯具に関して、それぞれ別々のランプユニットに設けられた複数の発光部を共通の点灯回路で同種の標識灯として動作させることができる。点灯回路をいずれかのランプユニットに設けることにより、他のランプユニットは点灯回路の設置スペースを用意する必要が無くなり、小型化しうる。そのため、ランプユニットごとに発光部とその点灯回路を設ける典型的な既存設計に比べて、複数のランプユニットを備える車両用灯具を全体として省スペースに設計することが可能になる。また、車両用灯具が備える点灯回路の数を減らすことができ、これは製造コストの低減にもつながりうる。 According to this aspect, regarding a vehicle lamp including a plurality of lamp units, a plurality of light emitting parts provided in separate lamp units can be operated as the same type of marker light by a common lighting circuit. By providing a lighting circuit in one of the lamp units, the other lamp units do not need to prepare a space for installing the lighting circuit, and can be made smaller. Therefore, compared to a typical existing design in which a light emitting part and its lighting circuit are provided for each lamp unit, it is possible to design a vehicle lamp including a plurality of lamp units in a space-saving manner as a whole. Furthermore, the number of lighting circuits included in the vehicle lamp can be reduced, which can also lead to a reduction in manufacturing costs.
　第２発光部は、第１点灯回路から外部配線を通じて給電され制御されてもよい。このようにすれば、第２ランプユニットで第２発光部のための点灯回路を不要とすることができ、第２ランプハウジングを小型化しうる。 The second light emitting section may be powered and controlled from the first lighting circuit through external wiring. In this way, it is possible to eliminate the need for a lighting circuit for the second light emitting part in the second lamp unit, and it is possible to downsize the second lamp housing.
　第１ランプハウジングは、第２ランプハウジングと隣接して配置されてもよい。このようにすれば、２つのランプユニットが例えば車両前部左側（または右側）など車両上のある特定の部位に並んで配置される車両用灯具を提供することができる。ランプユニットそれぞれに異なる灯具機能を割り当てることにより、全体として複数の灯具機能を持つ車両用灯具を提供することができる。 The first lamp housing may be placed adjacent to the second lamp housing. In this way, it is possible to provide a vehicle lamp in which two lamp units are arranged side by side at a specific location on the vehicle, such as the front left (or right) of the vehicle. By assigning different lamp functions to each lamp unit, it is possible to provide a vehicle lamp having a plurality of lamp functions as a whole.
　第１発光部は、第２発光部とともに、連続的なライン状の発光領域を形成してもよい。このようにすれば、車両用灯具は、２つの発光部の組み合わせにより、ひとまとまりの発光意匠を提供することができる。 The first light emitting section may form a continuous line-shaped light emitting region together with the second light emitting section. In this way, the vehicle lamp can provide a complete light-emitting design by combining the two light-emitting parts.
　第１ランプハウジングの容積は、第２ランプハウジングの容積よりも大きい。このようにすれば、点灯回路の設置スペースを第１ランプユニットに確保することが容易になるとともに、第２ランプユニットの小型化にも役立つ。 The volume of the first lamp housing is larger than the volume of the second lamp housing. This makes it easy to secure the installation space for the lighting circuit in the first lamp unit, and also contributes to miniaturization of the second lamp unit.
　第１点灯回路は、金属ケースに収められており、第１ランプユニットは、ヘッドランプとして動作可能な光学ユニットと、光学ユニットと接続された第２点灯回路とをさらに備えてもよい。第２点灯回路は、金属ケースと隣接して配置されてもよい。このようにすれば、第１ランプユニットの放熱を促進することができる。すなわち、ヘッドランプのための第２点灯回路は比較的大きな発熱源となりうるところ、これと隣接する第１点灯回路の金属ケースを第２点灯回路からの放熱経路として利用することができる。 The first lighting circuit is housed in a metal case, and the first lamp unit may further include an optical unit that can operate as a headlamp and a second lighting circuit connected to the optical unit. The second lighting circuit may be placed adjacent to the metal case. In this way, heat dissipation from the first lamp unit can be promoted. That is, although the second lighting circuit for the headlamp can be a relatively large heat source, the metal case of the first lighting circuit adjacent thereto can be used as a heat radiation path from the second lighting circuit.
　本発明によれば、複数のランプユニットをもつ省スペースの車両用灯具を提供することができる。 According to the present invention, it is possible to provide a space-saving vehicular lamp having a plurality of lamp units.
実施の形態に係る車両用灯具の概略正面図である。FIG. 1 is a schematic front view of a vehicle lamp according to an embodiment. 図１に示される車両用灯具のＡ－Ａ線断面を概略的に示す部分断面図である。2 is a partial cross-sectional view schematically showing a cross section taken along line AA of the vehicle lamp shown in FIG. 1. FIG. 図１に示される車両用灯具のブロック図である。FIG. 2 is a block diagram of the vehicle lamp shown in FIG. 1. FIG. 図１に示される車両用灯具のＢ－Ｂ線断面の概略断面図である。2 is a schematic cross-sectional view taken along the line BB of the vehicle lamp shown in FIG. 1. FIG.
　以下、本発明を好適な実施の形態をもとに図面を参照しながら説明する。実施の形態は、発明を限定するものではなく例示であって、実施の形態に記述されるすべての特徴やその組み合わせは、必ずしも発明の本質的なものであるとは限らない。各図面に示される同一または同等の構成要素、部材、処理には、同一の符号を付するものとし、適宜重複した説明は省略する。また、各図に示す各部の縮尺や形状は、説明を容易にするために便宜的に設定されており、特に言及がない限り限定的に解釈されるものではない。また、本明細書または請求項中に用いられる「第１」、「第２」等の用語は、いかなる順序や重要度を表すものでもなく、ある構成と他の構成とを区別するためのものである。また、各図面において実施の形態を説明する上で重要ではない部材の一部は省略して表示する。 Hereinafter, the present invention will be explained based on preferred embodiments with reference to the drawings. The embodiments are illustrative rather than limiting the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention. Identical or equivalent components, members, and processes shown in each drawing are designated by the same reference numerals, and redundant explanations will be omitted as appropriate. Further, the scale and shape of each part shown in each figure are set for convenience to facilitate explanation, and should not be interpreted in a limited manner unless otherwise mentioned. Furthermore, terms such as "first" and "second" used in this specification or the claims do not indicate any order or importance, but are used to distinguish one configuration from another. It is. Further, in each drawing, some members that are not important for explaining the embodiments are omitted.
　図１は、実施の形態に係る車両用灯具１０の概略正面図である。図２は、図１に示される車両用灯具１０のＡ－Ａ線断面を概略的に示す部分断面図である。図３は、図１に示される車両用灯具１０のブロック図である。図４は、図１に示される車両用灯具１０のＢ－Ｂ線断面の概略断面図である。 FIG. 1 is a schematic front view of a vehicle lamp 10 according to an embodiment. FIG. 2 is a partial sectional view schematically showing a cross section taken along line AA of the vehicle lamp 10 shown in FIG. FIG. 3 is a block diagram of the vehicle lamp 10 shown in FIG. 1. FIG. 4 is a schematic cross-sectional view taken along line BB of the vehicle lamp 10 shown in FIG.
　車両用灯具１０は、車両前方の左右に配置される一対の前照灯ユニットを有する車両用前照灯装置である。一対の前照灯ユニットは概ね左右対称の構造を有し、実質的に同一の構成であるため、図１には一方の前照灯ユニットを示している。車両用灯具１０は、例えばトラックなど貨物自動車、またはその他の自動車に設置されうる。 The vehicular lamp 10 is a vehicular headlamp device having a pair of headlamp units arranged on the left and right sides in front of the vehicle. The pair of headlamp units have generally symmetrical structures and have substantially the same configuration, so one headlamp unit is shown in FIG. 1. The vehicular lamp 10 can be installed, for example, in a freight vehicle such as a truck, or other automobiles.
　車両用灯具１０は、複数のランプユニット、ここでは第１ランプユニット２０および第２ランプユニット３０を備える。第１ランプユニット２０と第２ランプユニット３０は、第２ランプユニット３０が第１ランプユニット２０の上方に位置するように並んで配置されている。 The vehicle lamp 10 includes a plurality of lamp units, here a first lamp unit 20 and a second lamp unit 30. The first lamp unit 20 and the second lamp unit 30 are arranged side by side so that the second lamp unit 30 is located above the first lamp unit 20.
　第１ランプユニット２０は、ヘッドランプとして使用されるものであり、ハイビームを提供するための第１光学ユニット２１とロービームを提供するための第２光学ユニット２２とを備える。第１光学ユニット２１および第２光学ユニット２２は、種々の公知の構成を適宜採用することができるので、ここでは詳述しない。 The first lamp unit 20 is used as a headlamp, and includes a first optical unit 21 for providing a high beam and a second optical unit 22 for providing a low beam. The first optical unit 21 and the second optical unit 22 can adopt various known configurations as appropriate, and therefore will not be described in detail here.
　なお、第１光学ユニット２１は、車両の周囲の状態に基づいてハイビーム配光パターンを動的、適応的に制御する、いわゆるＡＤＢ(Adaptive Driving Beam)制御を実行するように構成されてもよい。知られているように、ＡＤＢ制御では、自車前方に位置する先行車や対向車等の前方車両を検出し、ハイビーム配光パターン内で前方車両に対応する部位に暗領域を形成することによって、前方車両に与えうるグレアを軽減または防止することができる。 Note that the first optical unit 21 may be configured to perform so-called ADB (Adaptive Driving Beam) control, which dynamically and adaptively controls the high beam light distribution pattern based on the surrounding state of the vehicle. As is known, ADB control detects vehicles in front of the vehicle, such as a preceding vehicle or an oncoming vehicle, and forms a dark area in the area corresponding to the vehicle in front of the high beam light distribution pattern. , it is possible to reduce or prevent glare that may be given to the vehicle in front.
　第２ランプユニット３０は、少なくとも１種類の標識灯、例えばターンシグナルランプ３１を備える。ターンシグナルランプ３１についても、種々の公知の構成を適宜採用することができるので、ここでは詳述しない。 The second lamp unit 30 includes at least one type of marker light, for example a turn signal lamp 31. As for the turn signal lamp 31, various known configurations can be adopted as appropriate, so a detailed description thereof will not be given here.
　第１光学ユニット２１および第２光学ユニット２２に加えて、第１ランプユニット２０は、少なくとも１種類の標識灯、この実施の形態ではクリアランスランプとして使用される第１発光部２３を備える。また、第２ランプユニット３０は、第１発光部２３と同一機能の標識灯、すなわちクリアランスランプとして使用される第２発光部３３を備える。第１発光部２３および第２発光部３３は、デイライトランニングランプとしても動作しうる。 In addition to the first optical unit 21 and the second optical unit 22, the first lamp unit 20 includes a first light emitting section 23 that is used as at least one type of marker light, a clearance lamp in this embodiment. Further, the second lamp unit 30 includes a second light emitting section 33 that is used as a marker light having the same function as the first light emitting section 23, that is, a clearance lamp. The first light emitting section 23 and the second light emitting section 33 can also operate as daylight running lamps.
　第１ランプユニット２０は、第１ランプボディ１２ａおよび第１透光カバー１４ａを有する第１ランプハウジング１１ａを備え、第２ランプユニット３０は、第２ランプボディ１２ｂおよび第２透光カバー１４ｂを有する第２ランプハウジング１１ｂを備える。透光カバーは、ランプボディの前面開口を覆うようにランプボディに取り付けられている。通例、ランプボディは、例えば汎用樹脂材料など適宜の材料で形成され、透光カバーは、透光性をもつ合成樹脂材料またはガラスなど適宜の透光材料で形成されている。第１ランプボディ１２ａと第２ランプボディ１２ｂはそれぞれが個別に車体に取り付け可能である。 The first lamp unit 20 includes a first lamp housing 11a having a first lamp body 12a and a first transparent cover 14a, and the second lamp unit 30 has a second lamp body 12b and a second transparent cover 14b. A second lamp housing 11b is provided. The light-transmitting cover is attached to the lamp body so as to cover the front opening of the lamp body. Typically, the lamp body is made of a suitable material such as a general-purpose resin material, and the light-transmitting cover is made of a suitable light-transmitting material such as a synthetic resin material having light-transmitting properties or glass. The first lamp body 12a and the second lamp body 12b can each be individually attached to the vehicle body.
　第１ランプハウジング１１ａは、第２ランプハウジング１１ｂと隣接して配置される。第１ランプハウジング１１ａおよび第２ランプハウジング１１ｂはそれぞれ車体に支持されており、これら２つのランプハウジングは互いに接触せず、図示されるように、わずかな隙間をあけて配置されている。 The first lamp housing 11a is arranged adjacent to the second lamp housing 11b. The first lamp housing 11a and the second lamp housing 11b are each supported by the vehicle body, and these two lamp housings do not contact each other and are arranged with a slight gap as shown in the figure.
　第１発光部２３は、第１ランプハウジング１１ａ内に配置され、第２発光部３３は、第２ランプハウジング１１ｂ内に配置されている。第１発光部２３および第２発光部３３はともに、線状に延びた細長い発光形状を有するように構成される。 The first light emitting section 23 is arranged inside the first lamp housing 11a, and the second light emitting section 33 is arranged inside the second lamp housing 11b. Both the first light emitting section 23 and the second light emitting section 33 are configured to have a linearly elongated light emitting shape.
　第１発光部２３は、第１光学ユニット２１および第２光学ユニット２２の外周の少なくとも一部（この例では図１に示されるように左部）を縁取るように、第１ランプハウジング１１ａ内で端部に配置されてもよい。同様に、第２発光部３３は、ターンシグナルランプ３１の外周の少なくとも一部（この例では図１に示されるように左部）を縁取るように、第２ランプハウジング１１ｂ内で端部に配置されてもよい。 The first light emitting section 23 is arranged inside the first lamp housing 11a so as to frame at least a part of the outer periphery (in this example, the left part as shown in FIG. 1) of the first optical unit 21 and the second optical unit 22. may be placed at the end. Similarly, the second light emitting part 33 is attached to an end within the second lamp housing 11b so as to frame at least a part of the outer periphery (in this example, the left part as shown in FIG. 1) of the turn signal lamp 31. may be placed.
　例示的な構成として、第１発光部２３は、図２に示されるように、第１光源２４と第１導光体２５を備える。同様に、第２発光部３３は、第２光源３４と第２導光体３５を備える。光源は、例えばＬＥＤなどの半導体発光素子、またはその他の発光素子と、こうした発光素子を実装したプリント基板などの回路基板とを備える形式のものであってもよく、またはその他の光源であってもよい。導光体は、透光性をもつ合成樹脂材料またはガラスなど適宜の透光材料で形成され、光源に対向し光源からの入射光Ｌ１を受け入れる端面とこの端面から入射した光を出射する側面とを有する棒状の導光体であってもよい。導光体からの出射光Ｌ２は透光カバーから外部に出射される。 As an exemplary configuration, the first light emitting unit 23 includes a first light source 24 and a first light guide 25, as shown in FIG. Similarly, the second light emitting section 33 includes a second light source 34 and a second light guide 35. The light source may be of a type comprising, for example, a semiconductor light emitting element such as an LED or other light emitting element and a circuit board such as a printed circuit board on which such light emitting element is mounted, or may be any other light source. good. The light guide is made of a suitable transparent material such as a synthetic resin material or glass, and has an end face that faces the light source and receives the incident light L1 from the light source, and a side face that emits the light incident from this end face. A rod-shaped light guide may be used. The light L2 emitted from the light guide is emitted to the outside from the light-transmitting cover.
　第１発光部２３は、第２発光部３３とともに、連続的なライン状の発光領域を形成する。２つの発光部は、それぞれの端部を互いに近接させて配置され、それにより、全体として１つの連続的な発光領域であるかのように看者に視認される。この実施の形態では、図１および図２に示されるように、第１発光部２３および第２発光部３３はともに、鉛直方向に直線状に延在する。第１発光部２３の一方の端部と第２発光部３３の一方の端部とが互いに近接して配置され、それにより、第１発光部２３および第２発光部３３は全体として、鉛直方向に延びる１本の直線状の発光領域のように看者に視認される。 The first light emitting section 23 and the second light emitting section 33 form a continuous line-shaped light emitting region. The two light emitting parts are arranged with their respective ends close to each other, so that the entire light emitting area is viewed by the viewer as if it were one continuous light emitting area. In this embodiment, as shown in FIGS. 1 and 2, both the first light emitting section 23 and the second light emitting section 33 extend linearly in the vertical direction. One end of the first light emitting section 23 and one end of the second light emitting section 33 are arranged close to each other, so that the first light emitting section 23 and the second light emitting section 33 as a whole are arranged in the vertical direction. It is visually recognized by the viewer as a single linear light-emitting area extending over the area.
　発光部は、図示の例では、単純な直線状に延びているが、少なくとも１つの屈曲部をもつ折れ線、少なくとも１つの湾曲部をもつ曲線、またはこれらの組み合わせなど、さまざまな形状をとりうる。また、１つのランプユニットに複数の発光部が配置されてもよい。このように、各ランプユニットの発光部それぞれの形状や配置を適宜設計し、これら発光部を組み合わせることで、直線または曲線など線で描かれる図形、文字、記号などさまざまな形状またはその一部を発光により表現することができる。車両用灯具１０は、複数の発光部の組み合わせにより、ひとまとまりの発光意匠を提供することができる。 In the illustrated example, the light emitting part extends in a simple straight line, but it can take various shapes, such as a polygonal line with at least one bent part, a curved line with at least one curved part, or a combination thereof. Further, a plurality of light emitting parts may be arranged in one lamp unit. In this way, by appropriately designing the shape and arrangement of the light-emitting parts of each lamp unit and combining these light-emitting parts, it is possible to create various shapes or parts of them, such as figures drawn with straight or curved lines, characters, symbols, etc. It can be expressed by light emission. The vehicle lamp 10 can provide a complete light-emitting design by combining a plurality of light-emitting parts.
　なお、発光部は、上述のような光源と導光体の組み合わせに限られず、さまざまな他の形式をとりうる。例えば、発光部は、光源からの入射光を板状の導光体のある端面から受け入れ、この導光体の他の端面から出射するいわゆるエッジライトであってもよい。あるいは、発光部は、導光体を備える代わりに、例えばＬＥＤアレイなど多数の発光素子の配列を備えてもよく、これら発光素子から透光カバーに光が直接発せられてもよい。 Note that the light emitting unit is not limited to the combination of a light source and a light guide as described above, and may take various other forms. For example, the light emitting section may be a so-called edge light that receives incident light from a light source from one end surface of a plate-shaped light guide and emits it from the other end surface of the light guide. Alternatively, instead of including the light guide, the light emitting section may include an arrangement of a large number of light emitting elements, such as an LED array, and light may be emitted directly from these light emitting elements to the transparent cover.
　発光部は、必要とされる場合には、出射光Ｌ２を透光カバーに向けるために、または出射光Ｌ２の制御のために、例えばインナーレンズやリフレクタなど少なくとも１つの光学部材を備えてもよい。また、発光部は、光源が発する熱を放熱するための放熱部材を備えてもよい。 The light emitting unit may include at least one optical member, such as an inner lens or a reflector, for directing the emitted light L2 toward the transparent cover or for controlling the emitted light L2, if necessary. . Further, the light emitting section may include a heat radiating member for radiating heat generated by the light source.
　第１ランプユニット２０には、第１発光部２３と接続された第１点灯回路２６が設けられる。第１点灯回路２６は、外部配線４０を介して第２発光部３３と接続可能であり、第１発光部２３と第２発光部３３を同一機能の標識灯（この例では、クリアランスランプまたはデイタイムランニングランプ）として動作させるように構成される。このように、複数のランプユニットに分かれて搭載された同種の標識灯のための点灯回路は、そのうち一つのランプユニットのみに設けられる。第２発光部３３は、第１点灯回路２６から外部配線４０を通じて給電され制御される。よって、第２ランプユニット３０には、第２発光部３３用の点灯回路は設けられていない。 The first lamp unit 20 is provided with a first lighting circuit 26 connected to the first light emitting section 23. The first lighting circuit 26 can be connected to the second light emitting section 33 via external wiring 40, and connects the first light emitting section 23 and the second light emitting section 33 to a marker light with the same function (in this example, a clearance lamp or a light emitting section). is configured to operate as a time running lamp). In this way, the lighting circuit for the same type of marker lights that are mounted in a plurality of lamp units is provided only in one of the lamp units. The second light emitting section 33 is powered and controlled from the first lighting circuit 26 through the external wiring 40. Therefore, the second lamp unit 30 is not provided with a lighting circuit for the second light emitting section 33.
　第１点灯回路２６に加えて、第１ランプユニット２０には、図３に示されるように、第１光学ユニット２１と接続されたハイビーム用の点灯回路２７、および第２光学ユニット２２と接続されたロービーム用の点灯回路２８も設けられる。これらの点灯回路は、第１ランプハウジング１１ａ内に配置される。一方、第２ランプユニット３０には、第２ランプハウジング１１ｂ内に配置されターンシグナルランプ３１と接続された点灯回路３６が設けられる。ターンシグナルランプ３１用の点灯回路３６は、例えば、第２ランプユニット３０の背面側で第２ランプボディ１２ｂに隣接して配置されてもよい。点灯回路は、対応する光源を制御する制御装置であり、必要な電子部品を実装した回路基板として構成され、ＬＤＭ(LDE Driving Module)ともしばしば称される。 In addition to the first lighting circuit 26, the first lamp unit 20 includes a high beam lighting circuit 27 connected to the first optical unit 21 and a second optical unit 22, as shown in FIG. A low beam lighting circuit 28 is also provided. These lighting circuits are arranged within the first lamp housing 11a. On the other hand, the second lamp unit 30 is provided with a lighting circuit 36 which is disposed within the second lamp housing 11b and is connected to the turn signal lamp 31. The lighting circuit 36 for the turn signal lamp 31 may be arranged adjacent to the second lamp body 12b on the back side of the second lamp unit 30, for example. A lighting circuit is a control device that controls a corresponding light source, and is configured as a circuit board on which necessary electronic components are mounted, and is often referred to as an LDM (LDE Driving Module).
　図２および図３に示されるように、車両用灯具１０には、第１ランプユニット２０および第２ランプユニット３０を車両側と接続し、かつ第１ランプユニット２０と第２ランプユニット３０を相互に接続するワイヤーハーネス３８が設けられる。ワイヤーハーネス３８は、第１ランプユニット２０および第２ランプユニット３０の外側に配置される。 As shown in FIGS. 2 and 3, in the vehicle lamp 10, a first lamp unit 20 and a second lamp unit 30 are connected to the vehicle side, and the first lamp unit 20 and the second lamp unit 30 are connected to each other. A wire harness 38 is provided to connect to. The wire harness 38 is arranged outside the first lamp unit 20 and the second lamp unit 30.
　ワイヤーハーネス３８は、第１点灯回路２６を第２発光部３３に接続する上述の外部配線４０を備える。また、ワイヤーハーネス３８は、第１ランプユニット２０および第２ランプユニット３０への給電のための第１給電ケーブル４２および第２給電ケーブル４４を備える。第１給電ケーブル４２は、第１ランプユニット２０（より具体的には、第１点灯回路２６、ハイビーム用の点灯回路２７、およびロービーム用の点灯回路２８）を、車両側に設けられた車載バッテリに接続する。第２給電ケーブル４４は、第２ランプユニット３０（より具体的には、点灯回路３６）を車載バッテリに接続する。ワイヤーハーネス３８はさらに、車両側に設けられた例えば車両ＥＣＵなどの制御装置と第１ランプユニット２０及び／または第２ランプユニット３０との間の通信のための通信ケーブルを含んでもよい。 The wire harness 38 includes the above-mentioned external wiring 40 that connects the first lighting circuit 26 to the second light emitting section 33. Further, the wire harness 38 includes a first power supply cable 42 and a second power supply cable 44 for supplying power to the first lamp unit 20 and the second lamp unit 30. The first power supply cable 42 connects the first lamp unit 20 (more specifically, the first lighting circuit 26, the high beam lighting circuit 27, and the low beam lighting circuit 28) to an in-vehicle battery provided on the vehicle side. Connect to. The second power supply cable 44 connects the second lamp unit 30 (more specifically, the lighting circuit 36) to the vehicle battery. The wire harness 38 may further include a communication cable for communication between a control device such as a vehicle ECU provided on the vehicle side and the first lamp unit 20 and/or the second lamp unit 30.
　ワイヤーハーネス３８は、第１ランプユニット２０および第２ランプユニット３０との接続のために第１コネクタ４６および第２コネクタ４８を備える。第１コネクタ４６から外部配線４０および第１給電ケーブル４２が延び、第２コネクタ４８から外部配線４０および第２給電ケーブル４４が延びている。第１コネクタ４６と第２コネクタ４８は外部配線４０の両端に設けられている。 The wire harness 38 includes a first connector 46 and a second connector 48 for connection to the first lamp unit 20 and the second lamp unit 30. An external wiring 40 and a first power supply cable 42 extend from the first connector 46 , and an external wiring 40 and a second power supply cable 44 extend from the second connector 48 . The first connector 46 and the second connector 48 are provided at both ends of the external wiring 40.
　第１ランプユニット２０には、第１コネクタ４６が接続される第１ソケット５０が設けられ、第２ランプユニット３０には第２ソケット５２が設けられている。第１ソケット５０は、第１ランプハウジング１１ａ（例えば第１ランプボディ１２ａ）の背面に設けられ、第２ソケット５２は、第２ランプハウジング１１ｂ（例えば第２ランプボディ１２ｂ）の背面に設けられている。第１ソケット５０は、第１ランプハウジング１１ａ内の内部配線により第１点灯回路２６、ハイビーム用の点灯回路２７、およびロービーム用の点灯回路２８に接続され、第２ソケット５２は、第２ランプハウジング１１ｂ内の内部配線により第２発光部３３およびターンシグナルランプ３１用の点灯回路３６に接続されている。 The first lamp unit 20 is provided with a first socket 50 to which the first connector 46 is connected, and the second lamp unit 30 is provided with a second socket 52. The first socket 50 is provided on the back surface of the first lamp housing 11a (for example, the first lamp body 12a), and the second socket 52 is provided on the back surface of the second lamp housing 11b (for example, the second lamp body 12b). There is. The first socket 50 is connected to the first lighting circuit 26, the high beam lighting circuit 27, and the low beam lighting circuit 28 through internal wiring in the first lamp housing 11a, and the second socket 52 is connected to the second lamp housing 11a. It is connected to the second light emitting section 33 and the lighting circuit 36 for the turn signal lamp 31 by internal wiring inside the turn signal lamp 11b.
　よって、ワイヤーハーネス３８の第１コネクタ４６と第２コネクタ４８がそれぞれ第１ランプユニット２０の第１ソケット５０と第２ランプユニット３０の第２ソケット５２に接続されることにより、第１点灯回路２６と第２発光部３３の電気接続、第１ランプユニット２０と車載バッテリの電気接続、および第２ランプユニット３０と車載バッテリの電気接続が確立される。 Therefore, by connecting the first connector 46 and the second connector 48 of the wire harness 38 to the first socket 50 of the first lamp unit 20 and the second socket 52 of the second lamp unit 30, respectively, the first lighting circuit 26 An electrical connection between the second lamp unit 33 and the second light emitting unit 33, an electrical connection between the first lamp unit 20 and the vehicle battery, and an electrical connection between the second lamp unit 30 and the vehicle battery are established.
　車両用灯具１０を車両に組み付ける工程において、第１ランプユニット２０と第２ランプユニット３０は、互いに分離された状態で車両用灯具１０の製造業者から提供され、第１ランプハウジング１１ａと第２ランプハウジング１１ｂがそれぞれが個別に車体に取り付けられてもよい。ワイヤーハーネス３８は、車両用灯具１０とは別に用意され、この組み付け工程のなかで、第１ランプユニット２０および第２ランプユニット３０に接続されてもよい。あるいは、車両用灯具１０は、ワイヤーハーネス３８が第１ランプユニット２０と第２ランプユニット３０に接続された状態で、車両用灯具１０の製造業者から一つのユニットとして提供されてもよい。 In the process of assembling the vehicle lamp 10 to the vehicle, the first lamp unit 20 and the second lamp unit 30 are provided separately from each other by the manufacturer of the vehicle lamp 10, and the first lamp housing 11a and the second lamp unit 30 are provided separately from each other. The housings 11b may be individually attached to the vehicle body. The wire harness 38 may be prepared separately from the vehicle lamp 10 and connected to the first lamp unit 20 and the second lamp unit 30 during this assembly process. Alternatively, the vehicular lamp 10 may be provided as one unit by the manufacturer of the vehicular lamp 10, with the wire harness 38 connected to the first lamp unit 20 and the second lamp unit 30.
　図４には、第１ランプユニット２０の下部が示されている。図示されるように、第１点灯回路２６およびハイビーム用の点灯回路２７が、第１ランプハウジング１１ａ内で第１ランプボディ１２ａの底部に設置されている。ハイビーム用の点灯回路２７が第１ランプボディ１２ａの底面に取り付けられ、その上に第１点灯回路２６が取り付けられている。第１ランプハウジング１１ａ内でこれら点灯回路の上方にはハイビーム用の第１光学ユニット２１が設置されており、第１点灯回路２６は、第１光学ユニット２１と点灯回路２７に挟まれて配置されている。 FIG. 4 shows the lower part of the first lamp unit 20. As illustrated, a first lighting circuit 26 and a high beam lighting circuit 27 are installed at the bottom of the first lamp body 12a within the first lamp housing 11a. A high beam lighting circuit 27 is attached to the bottom surface of the first lamp body 12a, and a first lighting circuit 26 is attached above it. A first optical unit 21 for high beam is installed above these lighting circuits in the first lamp housing 11a, and a first lighting circuit 26 is arranged between the first optical unit 21 and the lighting circuit 27. ing.
　第１点灯回路２６は、第１金属ケース５４に収められ、ハイビーム用の点灯回路２７は、第２金属ケース５６に収められ、これらは互いに隣接している。これら金属ケースは、例えばアルミニウムまたはアルミニウム合金などの熱伝導性に優れる金属材料（例えば、ステンレス鋼よりも高い熱伝導率をもつ金属材料）またはその他の高熱伝導材料で形成されている。 The first lighting circuit 26 is housed in a first metal case 54, and the high beam lighting circuit 27 is housed in a second metal case 56, which are adjacent to each other. These metal cases are made of a metal material with excellent thermal conductivity, such as aluminum or an aluminum alloy (for example, a metal material with higher thermal conductivity than stainless steel), or other highly thermally conductive materials.
　ハイビーム用の点灯回路２７は、とくに、ＡＤＢ制御を実行可能とする場合には、比較的大きな発熱源となりうる。そこで、ハイビーム用の点灯回路２７の第２金属ケース５６に加えて、隣接する第１点灯回路２６の第１金属ケース５４を点灯回路２７からの放熱経路として利用することにより、第１ランプユニット２０の放熱を促進することができる。 The high beam lighting circuit 27 can become a relatively large heat source, especially when ADB control is enabled. Therefore, in addition to the second metal case 56 of the high beam lighting circuit 27, by using the first metal case 54 of the adjacent first lighting circuit 26 as a heat radiation path from the lighting circuit 27, the first lamp unit 20 can promote heat dissipation.
　以上説明したように、実施の形態によると、第１ランプユニット２０および第２ランプユニット３０を備える車両用灯具１０に関して、これらランプユニットに別個に設けられた第１発光部２３および第２発光部３３を第１点灯回路２６によって同種の標識灯（クリアランスランプまたはデイタイムランニングランプ）として動作させることができる。第１点灯回路２６を第１ランプユニット２０のみに設けたことにより、第２ランプユニット３０は第２発光部３３のための点灯回路を持つ必要が無く、小型化が可能となる。そのため、車両用灯具１０は、ランプユニットごとに発光部とその点灯回路を設ける既存の一般的な設計に比べて、全体として省スペースに設計することができる。また、車両用灯具１０に備わる点灯回路の数を減らすことができ、製造コストの低減にもつながりうる。 As described above, according to the embodiment, regarding the vehicle lamp 10 including the first lamp unit 20 and the second lamp unit 30, the first light emitting section 23 and the second light emitting section are separately provided in these lamp units. 33 can be operated by the first lighting circuit 26 as a similar type of marker light (clearance lamp or daytime running lamp). By providing the first lighting circuit 26 only in the first lamp unit 20, the second lamp unit 30 does not need to have a lighting circuit for the second light emitting section 33, and can be made smaller. Therefore, the vehicle lamp 10 can be designed to take up less space as a whole than the existing general design in which a light emitting part and its lighting circuit are provided for each lamp unit. Furthermore, the number of lighting circuits included in the vehicle lamp 10 can be reduced, which can also lead to a reduction in manufacturing costs.
　この実施の形態では、第１ランプハウジング１１ａの容積は、第２ランプハウジング１１ｂの容積よりも大きい。一例として、第２ランプハウジング１１ｂは、図２に示されるように、第１ランプハウジング１１ａに比べて（例えば車両前後方向、図２では左右方向において）薄型となっている。このようにすれば、第１点灯回路２６の設置スペースを第１ランプユニット２０に確保することが容易になるとともに、第２ランプユニット３０の小型化にも役立つ。 In this embodiment, the volume of the first lamp housing 11a is larger than the volume of the second lamp housing 11b. As an example, as shown in FIG. 2, the second lamp housing 11b is thinner than the first lamp housing 11a (for example, in the longitudinal direction of the vehicle, in the left-right direction in FIG. 2). In this way, it becomes easy to secure a space for installing the first lighting circuit 26 in the first lamp unit 20, and it also helps to reduce the size of the second lamp unit 30.
　本発明は、上述した実施の形態及び変形例に限定されるものではなく、実施の形態及び変形例を組み合わせたり、当業者の知識に基づいて各種の設計変更などのさらなる変形を加えることも可能であり、そのように組み合わせられ、もしくはさらなる変形が加えられた実施の形態や変形例も本発明の範囲に含まれる。上述した実施の形態や変形例、及び上述した実施の形態や変形例と以下の変形との組合せによって生じる新たな実施の形態は、組み合わされる実施の形態、変形例及びさらなる変形それぞれの効果をあわせもつ。 The present invention is not limited to the embodiments and modifications described above, and it is also possible to combine the embodiments and modifications, and to add further modifications such as various design changes based on the knowledge of those skilled in the art. Embodiments and modifications in which such combinations or further modifications are made are also included within the scope of the present invention. The above-described embodiments and modifications, and new embodiments created by combining the above-mentioned embodiments and modifications with the following modifications, combine the effects of the combined embodiments, modifications, and further modifications. Motsu.
　上述の実施の形態では、第１ランプユニット２０と第２ランプユニット３０が上下に隣接配置されているが、これらランプユニットは、例えば左右に隣接するなど、他の配置も可能である。また、これらランプユニットが隣接することは必須ではない。ある実施の形態では、例えば第１ランプユニット２０が車両端部（例えば車両前方左端）に配置され第２ランプユニット３０が別の車両端部（例えば車両前方右端）に配置される等、第１ランプユニット２０と第２ランプユニット３０が離れて配置されてもよい。 In the embodiment described above, the first lamp unit 20 and the second lamp unit 30 are arranged adjacent to each other vertically, but other arrangements are also possible, such as, for example, adjacent to each other laterally. Furthermore, it is not essential that these lamp units be adjacent to each other. In some embodiments, the first lamp unit 20 is arranged at one end of the vehicle (for example, the front left end of the vehicle) and the second lamp unit 30 is arranged at another end of the vehicle (for example, the front right end of the vehicle). The lamp unit 20 and the second lamp unit 30 may be placed apart.
　上述の実施の形態では、車両用灯具１０が前照灯として車両前部に設置される場合を例として説明しているが、実施の形態に係る車両用灯具１０は、例えばリアコンビネーションランプなど、車両の他の部位に設置される灯具に適用されてもよい。 In the above-described embodiment, the case where the vehicle lamp 10 is installed as a headlamp at the front of the vehicle is described as an example, but the vehicle lamp 10 according to the embodiment can be used as a rear combination lamp, for example. The invention may also be applied to lamps installed in other parts of the vehicle.
　上述の実施の形態では、第１発光部２３および第２発光部３３がクリアランスランプまたはデイタイムランニングランプとして動作する場合を例として説明している。しかし、他の種類の標識灯が複数のランプユニットに分割配置されてもよい。よって、ある実施の形態では、第１発光部２３および第２発光部３３は、ターンシグナルランプ、テールランプ、ストップランプ、バックアップランプなど他の標識灯として動作してもよい。 In the embodiments described above, the case where the first light emitting section 23 and the second light emitting section 33 operate as a clearance lamp or a daytime running lamp is described as an example. However, other types of marker lights may be divided and arranged into a plurality of lamp units. Therefore, in some embodiments, the first light emitting section 23 and the second light emitting section 33 may operate as other marker lights such as a turn signal lamp, a tail lamp, a stop lamp, and a backup lamp.
　上述の実施の形態では、車両用灯具１０が２つのランプユニットを備える場合を例として説明しているが、実施の形態に係る車両用灯具１０は、３以上のランプユニットを備えてもよく、それらランプユニットにそれぞれ設けられた発光部を、いずれかのランプユニットに設けた共通の点灯回路で同種の標識灯として動作させてもよい。例えば、車両用灯具１０は、第３ランプハウジングと、第３ランプハウジング内に配置された第３発光部とを備える第３ランプユニットをさらに備え、第１点灯回路は、外部配線を介して第３発光部と接続可能であり、第１発光部、第２発光部および第３発光部を同一機能の標識灯として動作させるように構成されてもよい。 In the embodiment described above, the case where the vehicle lamp 10 includes two lamp units is described as an example, but the vehicle lamp 10 according to the embodiment may include three or more lamp units. The light emitting parts provided in each of the lamp units may be operated as the same type of marker light by a common lighting circuit provided in any of the lamp units. For example, the vehicle lamp 10 further includes a third lamp unit including a third lamp housing and a third light emitting section disposed within the third lamp housing, and the first lighting circuit is connected to the third lamp unit via external wiring. It can be connected to three light emitting parts, and may be configured to operate the first light emitting part, the second light emitting part, and the third light emitting part as a marker light with the same function.
　実施の形態にもとづき、具体的な語句を用いて本発明を説明したが、実施の形態は、本発明の原理、応用の一側面を示しているにすぎず、実施の形態には、請求の範囲に規定された本発明の思想を逸脱しない範囲において、多くの変形例や配置の変更が認められる。 Although the present invention has been described using specific words based on the embodiments, the embodiments merely illustrate one aspect of the principles and applications of the present invention, and the embodiments do not include the claims. Many modifications and changes in arrangement are possible without departing from the spirit of the invention as defined in scope.
　実施の形態は、番号を付した以下の項のように表現することもできる。
　１．第１ランプハウジングと、第１ランプハウジング内に配置された第１発光部とを備える第１ランプユニットと、
　第２ランプハウジングと、第２ランプハウジング内に配置された第２発光部とを備える第２ランプユニットと、を備え、
　前記第１ランプユニットには、前記第１発光部と接続された第１点灯回路が設けられ、
　前記第１点灯回路は、外部配線を介して前記第２発光部と接続可能であり、前記第１発光部と前記第２発光部を同一機能の標識灯として動作させるように構成されることを特徴とする車両用灯具。
　２．前記第２発光部は、前記第１点灯回路から前記外部配線を通じて給電され制御されることを特徴とする項１に記載の車両用灯具。
　３．前記第１ランプハウジングは、前記第２ランプハウジングと隣接して配置されることを特徴とする項１または２に記載の車両用灯具。
　４．前記第１発光部は、前記第２発光部とともに、連続的なライン状の発光領域を形成することを特徴とする項３に記載の車両用灯具。
　５．前記第１ランプハウジングの容積は、前記第２ランプハウジングの容積よりも大きいことを特徴とする項１から４のいずれかに記載の車両用灯具。
　６．前記第１点灯回路は、金属ケースに収められており、
　前記第１ランプユニットは、ヘッドランプとして動作可能な光学ユニットと、前記光学ユニットと接続された第２点灯回路とをさらに備え、
　前記第２点灯回路は、前記金属ケースと隣接して配置されることを特徴とする項１から５のいずれかに記載の車両用灯具。 Embodiments may also be expressed in the following numbered sections.
1. a first lamp unit including a first lamp housing and a first light emitting section disposed within the first lamp housing;
a second lamp unit including a second lamp housing and a second light emitting section disposed within the second lamp housing;
The first lamp unit is provided with a first lighting circuit connected to the first light emitting section,
The first lighting circuit is connectable to the second light emitting section via external wiring, and is configured to operate the first light emitting section and the second light emitting section as a marker light with the same function. Characteristic vehicle lighting equipment.
2. 2. The vehicular lamp according to item 1, wherein the second light emitting section is powered and controlled by the first lighting circuit through the external wiring.
3. 3. The vehicle lamp according to item 1 or 2, wherein the first lamp housing is disposed adjacent to the second lamp housing.
4. 4. The vehicular lamp according to item 3, wherein the first light emitting section forms a continuous linear light emitting area together with the second light emitting section.
5. 5. The vehicle lamp according to any one of Items 1 to 4, wherein a volume of the first lamp housing is larger than a volume of the second lamp housing.
6. The first lighting circuit is housed in a metal case,
The first lamp unit further includes an optical unit that can operate as a headlamp, and a second lighting circuit connected to the optical unit,
6. The vehicle lamp according to claim 1, wherein the second lighting circuit is disposed adjacent to the metal case.
　本発明は、車両用灯具、例えば自動車などの車両に用いられる車両用灯具に利用できる。 INDUSTRIAL APPLICABILITY The present invention can be used in a vehicle lamp, for example, a vehicle lamp used in a vehicle such as an automobile.
　１０　車両用灯具、　１１ａ　第１ランプハウジング、　１１ｂ　第２ランプハウジング、　２０　第１ランプユニット、　２３　第１発光部、　２６　第１点灯回路、　３０　第２ランプユニット、　３３　第２発光部、　４０　外部配線。 10 Vehicle lamp, 11a First lamp housing, 11b Second lamp housing, 20 First lamp unit, 23 First light emitting section, 26 First lighting circuit, 30 Second lamp unit, 33 Second light emitting section, 40 External wiring .

Claims (6)

  1. 　第１ランプハウジングと、第１ランプハウジング内に配置された第１発光部とを備える第１ランプユニットと、
    　第２ランプハウジングと、第２ランプハウジング内に配置された第２発光部とを備える第２ランプユニットと、を備え、
    　前記第１ランプユニットには、前記第１発光部と接続された第１点灯回路が設けられ、
    　前記第１点灯回路は、外部配線を介して前記第２発光部と接続可能であり、前記第１発光部と前記第２発光部を同一機能の標識灯として動作させるように構成されることを特徴とする車両用灯具。     a first lamp unit including a first lamp housing and a first light emitting section disposed within the first lamp housing;
    a second lamp unit including a second lamp housing and a second light emitting section disposed within the second lamp housing;
    The first lamp unit is provided with a first lighting circuit connected to the first light emitting section,
    The first lighting circuit is connectable to the second light emitting section via external wiring, and is configured to operate the first light emitting section and the second light emitting section as a marker light with the same function. Characteristic vehicle lighting equipment.
  2. 　前記第２発光部は、前記第１点灯回路から前記外部配線を通じて給電され制御されることを特徴とする請求項１に記載の車両用灯具。 The vehicular lamp according to claim 1, wherein the second light emitting section is powered and controlled by the first lighting circuit through the external wiring.
  3. 　前記第１ランプハウジングは、前記第２ランプハウジングと隣接して配置されることを特徴とする請求項１に記載の車両用灯具。 The vehicular lamp according to claim 1, wherein the first lamp housing is arranged adjacent to the second lamp housing.
  4. 　前記第１発光部は、前記第２発光部とともに、連続的なライン状の発光領域を形成することを特徴とする請求項３に記載の車両用灯具。 The vehicular lamp according to claim 3, wherein the first light emitting section forms a continuous linear light emitting area together with the second light emitting section.
  5. 　前記第１ランプハウジングの容積は、前記第２ランプハウジングの容積よりも大きいことを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, wherein a volume of the first lamp housing is larger than a volume of the second lamp housing.
  6. 　前記第１点灯回路は、金属ケースに収められており、
    　前記第１ランプユニットは、ヘッドランプとして動作可能な光学ユニットと、前記光学ユニットと接続された第２点灯回路とをさらに備え、
    　前記第２点灯回路は、前記金属ケースと隣接して配置されることを特徴とする請求項１に記載の車両用灯具。     The first lighting circuit is housed in a metal case,
    The first lamp unit further includes an optical unit that can operate as a headlamp, and a second lighting circuit connected to the optical unit,
    The vehicle lamp according to claim 1, wherein the second lighting circuit is arranged adjacent to the metal case.
PCT/JP2023/024574 2022-07-04 2023-07-03 Vehicle light fixture WO2024009935A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017126535A (en) * 2016-01-15 2017-07-20 スタンレー電気株式会社 Lighting device mounting structure for vehicular lighting fixture
JP2020032745A (en) * 2018-08-27 2020-03-05 市光工業株式会社 Vehicular lighting fixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017126535A (en) * 2016-01-15 2017-07-20 スタンレー電気株式会社 Lighting device mounting structure for vehicular lighting fixture
JP2020032745A (en) * 2018-08-27 2020-03-05 市光工業株式会社 Vehicular lighting fixture

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