CN108613099B - Multifunctional lighting device for motor vehicle - Google Patents

Multifunctional lighting device for motor vehicle Download PDF

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Publication number
CN108613099B
CN108613099B CN201611175805.5A CN201611175805A CN108613099B CN 108613099 B CN108613099 B CN 108613099B CN 201611175805 A CN201611175805 A CN 201611175805A CN 108613099 B CN108613099 B CN 108613099B
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CN
China
Prior art keywords
light
mounting plate
light emitting
light source
mounting
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201611175805.5A
Other languages
Chinese (zh)
Other versions
CN108613099A (en
Inventor
邱学秀
邝志峰
李驿林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
Original Assignee
Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
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.)
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Publication date
Application filed by Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd filed Critical Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
Priority to CN201611175805.5A priority Critical patent/CN108613099B/en
Publication of CN108613099A publication Critical patent/CN108613099A/en
Application granted granted Critical
Publication of CN108613099B publication Critical patent/CN108613099B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2696—Mounting of devices using LEDs
    • 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
    • F21S43/10—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
    • F21S43/15—Strips of 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
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • 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
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • 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
    • F21S43/601—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by variable optical properties, e.g. involving the use of LCD or movable parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/20—Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
    • 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
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • 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
    • F21S43/249—Light guides with two or more light sources being coupled into 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
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F21S43/2492—Light guides with two or more light sources being coupled into the light guide having two or more input branches
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • 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
    • F21W2103/55—Daytime running lights [DRL]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention provides a multifunctional lighting device for a motor vehicle, comprising a lighting assembly (1), the lighting assembly (1) comprising at least two mounting plates, each of which is provided with a light source. The light-emitting device can realize multiple functions, has good heat dissipation performance and can save space.

Description

Multifunctional lighting device for motor vehicle
Technical Field
The invention relates to the technical field of vehicle devices, in particular to a multifunctional light-emitting device for a motor vehicle.
Background
Lighting and/or signalling devices are provided in motor vehicles for their function of lighting and/or signalling, which are also referred to as light-emitting devices, including automotive headlamps, fog lights, tail lights, turn lights, brake lights, standing lights and the like. In existing motor vehicles, a single lighting device generally performs only one function, and thus, in order to meet the requirements of road regulations for lighting and/or signaling functions, it is necessary to configure a plurality of lighting devices for the motor vehicle, thereby causing the lighting devices to occupy a large space.
Furthermore, in the prior art, the light source of the lighting device generates a large amount of heat, especially when Light Emitting Diodes (LEDs) are used as the light source, and therefore a separate heat sink is often required for the lighting device, which results in an increase in the volume of the lighting device on the one hand and in a more complicated assembly on the other hand.
Disclosure of Invention
The object of the present invention is to overcome the drawbacks of the prior art and to provide a multifunctional lighting device for motor vehicles, which is integrated with a plurality of functions.
The invention also aims to provide the multifunctional light-emitting device with good heat dissipation performance for the motor vehicle.
The object of the invention is also to provide a multifunctional lighting device for a motor vehicle which is volume-limited and which can save installation space in the motor vehicle.
In order to achieve one of the above objects or purposes, the technical solution of the present invention is as follows:
a multifunctional lighting device for a motor vehicle, comprising a lighting assembly comprising at least two mounting plates, each provided with a light source.
According to a preferred embodiment of the invention, the lighting assembly comprises two mounting plates, a first mounting plate on which a first light source is arranged and a second mounting plate on which a second light source is arranged.
According to a preferred embodiment of the invention, the first mounting plate comprises an overhang and a recess, the first light source is arranged on the overhang of the first mounting plate, and the first mounting plate is arranged in front of the second mounting plate such that the second light source on the second mounting plate is arranged in the recess of the first mounting plate.
According to a preferred embodiment of the invention, the first and second mounting plates each comprise an overhang and a recess, the first light source is arranged on the overhang of the first mounting plate, the second light source is arranged on the overhang of the second mounting plate, and the first and second mounting plates are arranged in the same plane such that the overhang of the first mounting plate is located in the recess of the second mounting plate and the overhang of the second mounting plate is located in the recess of the first mounting plate.
According to a preferred embodiment of the invention, the first mounting plate comprises an inner recess, and the first mounting plate is arranged in front of the second mounting plate such that the second light source on the second mounting plate is arranged in the inner recess of the first mounting plate, and
the light emitting assembly is configured to be rotatable about an axis of rotation to selectively place the first light source or the second light source in an operative position.
According to a preferred embodiment of the invention, the first light source and the second light source are arranged in a line.
According to a preferred embodiment of the present invention, the light emitting apparatus further comprises a light guide device disposed in front of the light emitting assembly.
According to a preferred embodiment of the invention, the light guiding device is selected from the group consisting of a flat light guide, an elongated light guide and a reflector.
According to a preferred embodiment of the present invention, the flat light guide is in a flat shape, and a plurality of recesses are provided on the light-incident side of the flat light guide, the plurality of recesses being arranged to face the light sources in the light emitting assembly, respectively.
According to a preferred embodiment of the invention, the elongate light guide comprises an exit portion and a plurality of entrance branches arranged to face the light sources in the light emitting assembly, respectively, and the ends of the plurality of entrance branches remote from the light emitting assembly converge towards each other to transition to the exit portion.
According to a preferred embodiment of the invention, the reflector comprises a plurality of interconnected ellipsoids arranged to face the light sources in the light emitting assembly, respectively.
According to a preferred embodiment of the invention, the first mounting board and/or the second mounting board is a printed circuit board.
The multifunctional lighting device for a motor vehicle according to the present invention comprises at least two mounting plates, wherein a first type of light source is provided on a first mounting plate and a second type of light source is provided on a second mounting plate, the first type of light source and the second type of light source may be, for example, different in luminescent color, whereby more than two functions can be implemented on one lighting device, for example, a signal indication function of a turn signal (yellow light) and a lighting function of a headlight (white light) can be implemented by the lighting device of the present invention when the first type of light source emits yellow light and the second type of light source emits white light. It is also possible to introduce more light sources by introducing more mounting plates, thus introducing more functions, or to combine different light emitting means by collocating different colors of light, for example introducing a red light source. Here, white light may be used as a low beam, a high beam, a fog light, a daytime running light, etc., yellow light may be used as a turn signal, a warning light, etc., and red light may be used as a position light, a brake light, a tail light, etc. Thus, by combining the above-described light sources of the respective colors differently, different light emitting devices can be formed.
Further, since all the light sources are distributed on more than two mounting plates, compared with the case that the same number of light sources are carried on one mounting plate, the light sources are arranged sparsely on each mounting plate, the heat conduction area of the light sources is increased, and gaps can exist between the mounting plates, so that the heat dissipation performance of the light emitting device is better. In practical application, the radiator is not required to be arranged independently, so that components are saved, and the installation procedure is saved.
The radiator does not need to be installed, and more light sources are arranged, but the light sources are distributed on more than two mounting plates, so that the mounting plates are not particularly large, the whole volume of the light-emitting device is reduced, and the mounting space reserved for the light-emitting device by a vehicle is also saved.
Drawings
Fig. 1 is an exploded view of a light emitting assembly according to a first embodiment of the present invention;
fig. 2 is an example of a light emitting device according to a first embodiment of the present invention;
fig. 3 is another example of a light emitting device according to the first embodiment of the present invention;
fig. 4 is still another example of a light emitting device according to the first embodiment of the present invention;
fig. 5 is an exploded view of a light emitting assembly according to a second embodiment of the present invention;
fig. 6 is an example of a light emitting device according to a second embodiment of the present invention;
fig. 7 is another example of a light emitting device according to a second embodiment of the present invention;
fig. 8 is still another example of a light emitting device according to a second embodiment of the present invention;
fig. 9 is an exploded view of a light emitting assembly according to a third embodiment of the present invention;
fig. 10 is an example of a light emitting device according to a third embodiment of the present invention;
fig. 11 is another example of a light emitting device according to a third embodiment of the present invention;
fig. 12 is still another example of a light emitting device according to a third embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein the same or similar reference numerals denote the same or similar elements. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.
According to the present general inventive concept, there is provided a multifunctional light emitting device for a motor vehicle, including a light emitting assembly including at least two mounting boards, one of which is provided with a first light source, and the other of which is provided with a second light source different from the first light source.
In the present invention, the light source may be a tungsten filament lamp, a halogen lamp, a xenon lamp, a cold cathode fluorescent tube (CCFL), an LED lamp, etc., preferably an LED lamp, and accordingly, the mounting board is a printed circuit board that supplies power to the LEDs. By providing two or more mounting boards in one light emitting assembly and arranging different types of light sources (e.g., different colors of light emission) on different mounting boards, a variety of functions can be realized.
The lighting assembly 1 comprises two mounting plates, a first mounting plate 11 on which a first light source 13 is arranged and a second mounting plate 12 on which a second light source 14 is arranged. Here, the light emitting device of the present invention is described by taking two mounting plates as an example, however, the number of mounting plates may not be limited to two.
Fig. 1-4 show a first embodiment of the invention, wherein fig. 1 is an exploded view of a light emitting assembly according to the first embodiment of the invention, and fig. 2-4 are light emitting devices according to the first embodiment of the invention, wherein different light guiding means are employed. According to a first embodiment of the present invention, a light emitting apparatus includes a light emitting assembly 1 and a light guide device (see fig. 2 to 4) provided in front of the light emitting assembly 1. In addition, the light emitting device may further include a housing, an outer lens, etc., wherein the light emitting assembly 1 may be disposed on the housing, and the outer lens is disposed in front of the light guide and coupled to the housing to enclose the housing, thereby forming a complete light emitting device. As shown in fig. 1, the lighting assembly 1 includes a first mounting board 11 and a second mounting board 12, the first mounting board 11 including an overhang 15 and an indent 16, thereby forming a zigzag or merlons shape; unlike the first mounting plate 11, the second mounting plate 12 has a substantially flat plate shape, and a plurality of second light sources 14 are provided near the lower edge thereof. The first light source 13 is arranged on an overhanging portion 15 of the first mounting plate 11, and the first mounting plate 11 is arranged in front of the second mounting plate 12 such that the second light source 14 on the second mounting plate 12 is arranged within an inner recess 16 of the first mounting plate 11. The right side of fig. 1 shows the assembled light emitting assembly 1 with the plurality of first light sources 13 on the first mounting plate 11 alternately arranged linearly with the plurality of second light sources 14 on the second mounting plate 12. The first mounting plate 11 and the second mounting plate 12 may be fixed together by means of gluing or screws or the like, alternatively the first mounting plate 11 and the second mounting plate 12 may be fixed to the housing of the lighting device, respectively, so that a relative fixation of the first mounting plate 11 and the second mounting plate 12 is achieved. A gap can be reserved between the first mounting plate 11 and the second mounting plate 12, and the existence of the gap is beneficial to heat dissipation.
Fig. 2 shows an example of a light emitting apparatus according to a first embodiment of the present invention, in which a light guiding device is configured as a flat light guide 2, the flat light guide 2 is in a flat shape, and a plurality of concave portions 21 are provided on a light entrance side of the flat light guide 2, the plurality of concave portions 21 being arranged to face light sources in the light emitting assembly 1, respectively. As shown in fig. 2, four light sources are provided in total, two first light sources 13, two second light sources 14, and accordingly, four concave portions 21 are formed in the flat light guide, each corresponding to one concave portion 21, and light emitted from the light source enters the flat light guide 2 from the concave portion 21 on the light-incident side, propagates inside the flat light guide 2, and exits from the side opposite to the light-emitting element 1. Alternatively, a collimator may be provided between the flat light guide 2 and the light emitting assembly 1, the collimator may be configured to include two tabs, an opening (the opening is a recess) is formed between the two tabs, and the first light source 13 and the second light source 14 may be disposed in the opening of the collimator. In this way, the flat light guide has a higher light collection efficiency by the recess or the opening of the collimator. For example, for a flat light guide without a recess, the angle of light rays that can enter the flat light guide is limited, whereas for a technical means comprising a recess or opening, a portion of light rays is directly injected into the middle portion between two tabs, and a portion of light rays is injected from one face of the tabs and reflected on the other face, so that a larger range of angles of light rays can be foreseen to be injected into the flat light guide, thus having a higher light collection efficiency.
Fig. 3 shows another example of a light emitting apparatus according to the first embodiment of the present invention, wherein the light guiding device is configured as an elongated light guide 3, the elongated light guide 3 comprises a lead-out portion 31 and a plurality of lead-in branch portions 32, the plurality of lead-in branch portions 32 being arranged to face the light sources in the light emitting assembly 1, respectively, and ends of the plurality of lead-in branch portions 32 remote from the light emitting assembly 1 converge with each other to transition to the lead-out portion 31. As shown in fig. 3, the elongate light guide forms a rake shape, and may be made of a transparent plastic material, for example PC or PMMA, preferably with the lead-out portion 31 and the plurality of lead-in branches 32 parallel to each other. The light emitted from the first light source 13 and the second light source 14 enters the elongated light guide 3 through one end of the introduction branch portion 32, is guided inside the elongated light guide 3, and is emitted from the exit portion 31.
Fig. 4 shows a further example of a light emitting device according to the first embodiment of the invention, wherein the light guiding means is configured as a reflector 4, e.g. a mirror, said reflector 4 comprising a plurality of interconnected ellipsoids 41, said plurality of ellipsoids 41 being arranged to face the light sources in said light emitting assembly 1, respectively.
The flat light guide 2, the elongated light guide 3 and the reflector 4 listed above may be fixed to the housing of the lighting device by fixing means.
The operation of the light emitting device according to the first embodiment of the present invention will be briefly described with reference to fig. 1 to 4, in which the first light source 13 is a first LED, emits yellow light, the second light source 14 is a second LED, emits white light, and when the driver activates the turn signal switch, the controller controls the first LED to emit yellow light and flash, and the second LED does not emit light, so that the light emitting device is used as a turn signal; when the driver activates the head lamp switch, the controller controls the second LED to emit white light and the first LED to emit no light, whereby the light emitting device is used as a head lamp.
Fig. 5-8 show a second embodiment of the invention, wherein fig. 5 is an exploded view of a light emitting assembly according to the second embodiment of the invention, and fig. 6-8 are light emitting devices according to the second embodiment of the invention. In the second embodiment, the light emitting assembly 1 includes the first mounting board 11 and the second mounting board 12, each of the first mounting board 11 and the second mounting board 12 includes the overhanging portion 15 and the concave portion 16, the first light source 13 is provided on the overhanging portion 15 of the first mounting board 11, the second light source 14 is provided on the overhanging portion 15 of the second mounting board 12, and the first mounting board 11 and the second mounting board 12 are arranged in the same plane such that the overhanging portion 15 of the first mounting board 11 is located in the concave portion 16 of the second mounting board 12 and the overhanging portion 15 of the second mounting board 12 is located in the concave portion 16 of the first mounting board 11. As shown in fig. 1, the first mounting plate 11 and the second mounting plate 12 each have a serrated or merlons-like edge, and are complementary, and the first mounting plate 11 and the second mounting plate 12 are oppositely plugged to form a substantially flat plate shape. In the first embodiment, the first light source 13 and the second light source 14 are arranged in different planes, staggered from each other, and in the present embodiment, the first light source 13 and the second light source 14 are arranged in the same plane. The first mounting plate 11 and the second mounting plate 12 may be secured together with a clamping force therebetween. Other aspects of the second embodiment may be the same as those of the first embodiment, and will not be described again.
Fig. 6 shows an example of a light emitting device according to a second embodiment of the present invention; fig. 7 shows another example of a light emitting device according to a second embodiment of the present invention; fig. 8 shows still another example of the light emitting device according to the second embodiment of the present invention, which correspond to fig. 2 to 4 of the first embodiment, respectively, and are not described here again.
In the following, the operation of the light emitting device according to the second embodiment of the present invention will be briefly described with reference to fig. 5 to 8, in which the first light source 13 is a first LED, emits yellow light, the second light source 14 is a second LED, emits red light, and when the driver activates the turn signal switch, the controller controls the first LED to emit yellow light and flash, and the second LED does not emit light, so that the light emitting device is used as a turn signal; when the driver steps on the brake pedal, the controller controls the second LED to emit red light, and the first LED does not emit light, so that the light emitting device is used as a brake lamp.
Fig. 9-12 show a third embodiment of the invention, wherein fig. 9 is an exploded view of a light emitting assembly according to the third embodiment of the invention, and fig. 10-12 are light emitting devices according to the third embodiment of the invention. In a third embodiment, the light emitting assembly 1 comprises a first mounting plate 11 and a second mounting plate 12, the first mounting plate 11 comprising an inner recess 16, and the first mounting plate 11 being arranged in front of the second mounting plate 12 such that the second light source 14 on the second mounting plate 12 is arranged within the inner recess 16 of the first mounting plate 11, and the light emitting assembly 1 is configured to be rotatable about the rotation axis 5 to selectively bring the first light source 13 or the second light source 14 in an operative position. The difference from the first and second embodiments is that the light emitting assembly 1 of the third embodiment is rotatable under the drive of a driving means (e.g. a motor) and thus can perform different functions by controlling different light sources into the operating position. In fig. 9, the first mounting plate 11 and the second mounting plate 12 are each configured to be substantially circular, an inner recess is provided in the first mounting plate 11, and one light source is provided in each of the first mounting plate 11 and the second mounting plate 12, and the light source positions are shown in the figure, and when the two mounting plates are attached, the first light source 13 is exposed through the inner recess in the first mounting plate 11, so that the two light sources can be seen from the front.
In the third embodiment, unlike the first and second embodiments, the flat light guide 2, the elongated light guide 3, and the reflector 4 are arranged corresponding to only one light source, as shown in fig. 10 to 12, in other words, the working position is defined by the flat light guide 2, the elongated light guide 3, and the reflector 4, the first light source 13 is used as the working light source when the light emitting assembly 1 is driven by the motor to rotate the first light source 13 into the working position, and the second light source 14 is used as the working light source when the light emitting assembly 1 is driven by the motor to rotate the second light source 14 into the working position.
Fig. 10 shows an example of a light emitting device according to a third embodiment of the present invention; fig. 11 shows another example of a light emitting device according to a third embodiment of the present invention; fig. 12 shows yet another example of a light emitting device according to a third embodiment of the invention, which corresponds to fig. 2-4 of the first embodiment, respectively, except that the flat light guide 2 has only one recess, the elongated light guide 3 is cylindrical and the reflector 4 has only a single ellipsoidal section.
The operation of the light emitting device according to the third embodiment of the present invention will be briefly described with reference to fig. 9 to 12, in which the first light source 13 is a first LED, which emits red light, the second light source 14 is a second LED, which emits white light, and the controller controls the first LED to emit red light and the second LED to emit no light when the illumination switch is turned on, whereby the light emitting device is used as a position light; when the daytime running light switch is turned on, the controller controls the second LED to emit white light, and the first LED does not emit light, whereby the light emitting device is used as a daytime running light.
The multifunctional lighting device for a motor vehicle according to the present invention comprises at least two mounting plates, wherein a first type of light source is provided on a first mounting plate and a second type of light source is provided on a second mounting plate, the first type of light source and the second type of light source may be, for example, different in luminescent color, whereby more than two functions can be implemented on one lighting device, for example, a signal indication function of a turn signal (yellow light) and a lighting function of a headlight (white light) can be implemented by the lighting device of the present invention when the first type of light source emits yellow light and the second type of light source emits white light. It is also possible to introduce more light sources by introducing more mounting plates, thus introducing more functions, or to combine different light emitting means by collocating different colors of light, for example introducing a red light source. Here, white light may be used as a low beam, a high beam, a fog light, a daytime running light, etc., yellow light may be used as a turn signal, a warning light, etc., and red light may be used as a position light, a brake light, a tail light, etc. Thus, by combining the above-described light sources of the respective colors differently, different light emitting devices can be formed.
Further, since all the light sources are distributed on more than two mounting plates, compared with the case that the same number of light sources are carried on one mounting plate, the light sources are arranged sparsely on each mounting plate, the heat conduction area of the light sources is increased, and gaps can exist between the mounting plates, so that the heat dissipation performance of the light emitting device is better. In practical application, the radiator is not required to be arranged independently, so that components are saved, and the installation procedure is saved.
The radiator does not need to be installed, and more light sources are arranged, but the light sources are distributed on more than two mounting plates, so that the mounting plates are not particularly large, the whole volume of the light-emitting device is reduced, and the mounting space reserved for the light-emitting device by a vehicle is also saved.
Further, since the heat sink is reduced, the light source and the printed circuit board are directly fixed to the housing of the light emitting device, not by the heat sink, and thus the assembly tolerance is smaller.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of applicability of the present invention is defined by the appended claims and equivalents thereof.
List of reference numerals:
1. light emitting assembly
11. First mounting plate
12. Second mounting plate
13. First light source
14. Second light source
15. Overhanging part
16. Concave part
2. Flat light guide
21. Concave part
3. Elongated light guide
31. Export part
32. Leading-in branch part
4. Reflector
41. Ellipsoid part
5. An axis of rotation.

Claims (8)

1. A multifunctional lighting device for motor vehicles, comprising a lighting assembly (1) and a light guide device in front of said lighting assembly, characterized in that: the light emitting assembly (1) comprises at least two mounting plates, wherein the at least two mounting plates are respectively provided with a light source;
the at least two mounting plates comprise a first mounting plate (11) and a second mounting plate (12), a first light source (13) is arranged on the first mounting plate (11), and a second light source (14) is arranged on the second mounting plate (12);
the first mounting plate (11) comprises an inner recess (16), the first mounting plate (11) being arranged in front of a second mounting plate (12) such that a second light source (14) on the second mounting plate (12) is arranged within the inner recess (16) of the first mounting plate (11);
the first mounting board (11) and the second mounting board (12) are printed circuit boards, the first light source arranged on the first mounting board is used as one light function, and the second light source arranged on the second mounting board is used as the other light function.
2. The multi-functional light emitting device for motor vehicles according to claim 1, wherein:
the first mounting plate (11) comprises an overhanging portion (15), and the first light source (13) is arranged on the overhanging portion (15) of the first mounting plate (11).
3. The multi-functional light emitting device for motor vehicles according to claim 1, wherein:
the light emitting assembly (1) is configured to be rotatable about an axis of rotation (5) to selectively place the first light source (13) or the second light source (14) in an operative position.
4. A multifunctional lighting device for motor vehicles according to any one of claims 1 to 3, characterized in that:
the first light source (13) and the second light source (14) are arranged linearly.
5. The multi-functional light emitting device for motor vehicles according to claim 1, wherein:
the light guide device is selected from the group consisting of a flat light guide (2), an elongated light guide (3) and a reflector (4).
6. The multi-functional light emitting device for motor vehicles according to claim 5, wherein:
the flat light guide (2) has a flat shape, and a plurality of concave portions (21) are provided on the light entrance side of the flat light guide (2), the plurality of concave portions (21) being arranged to face the light sources in the light emitting assembly (1), respectively.
7. The multi-functional light emitting device for motor vehicles according to claim 5, wherein:
the elongated light guide (3) comprises a lead-out portion (31) and a plurality of lead-in branch portions (32), the plurality of lead-in branch portions (32) being arranged to face the light sources in the light emitting assembly (1), respectively, and ends of the plurality of lead-in branch portions (32) remote from the light emitting assembly (1) converging towards each other to transition to the lead-out portion (31).
8. The multi-functional light emitting device for motor vehicles according to claim 5, wherein:
the reflector (4) comprises a plurality of interconnected ellipsoids (41), the ellipsoids (41) being arranged to face the light sources in the light emitting assembly (1), respectively.
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