Lighting device and motor vehicle

Abstract

The present application provides a lighting device and a motor vehicle, the lighting device comprising a casing (110); a heating assembly (120), disposed on the casing and having an openwork structure; a light source assembly (130), disposed on the casing and used for emitting light; and an outer lens (140), disposed at a front side of the heating assembly and the light source assembly, the outer lens being used to receive light emitted by the light source assembly, and output the received light towards a front side of the outer lens, wherein the heating assembly is used for generating heat to heat the outer lens.

Description

Lighting device and motor vehicle

[0001] The present application relates to the technical field of lighting devices, in particular to a lighting device and a motor vehicle.

[0002] In the technical field of lighting devices, a variety of lighting devices are known for providing light for lighting or signalling. For example, vehicle lamps are used in motor vehicles to provide lighting or signalling functions, so as to ensure safe travel, or to provide decorative functions. However, in cold weather, when the surface of a vehicle lamp is covered in ice, the function of the vehicle lamp will not be able to be used effectively. Thus, the question of how to provide a lighting device that can meet customers' demands with regard to styling while ensuring normal use of its own functions is in fact a technical problem in urgent need of solution at the present time.Summary of the invention

[0003] An object of the present application is to overcome at least one of the problems and shortcomings in the prior art.

[0004] A first aspect of the present application provides a lighting device, comprising:

[0005] a casing;

[0006] a heating assembly, disposed on the casing and having an openwork structure;

[0007] a light source assembly, disposed on the casing and used for emitting light; and

[0008] an outer lens, disposed at a front side of the heating assembly and the light source assembly, the outer lens being used to receive light emitted by the light source assembly, and output the received light towards a front side of the outer lens,

[0009] wherein the heating assembly is used for generating heat to heat the outer lens.

[0010] In some embodiments, a rear side of the lighting device is used for positioning a radar detection device, and when the radar detection device is positioned at the rear side of the lighting device, the orthographic projection of a signal window of the radar detection device onto the outer lens is located in a heated region of the outer lens;

[0011] at least a portion of the orthographic projection of the heating assembly onto the outer lens is located in the heated region, and the heating assembly is used to heat the heated region of the outer lens.

[0012] In some embodiments, the signal window of the radar detection device is enabled to receive and send radar signals normally as a result of having the heating assembly formed with the openwork structure;

[0013] the smallest enveloping circle of the orthographic projection of the heating assembly onto the outer lens completely covers the heated region.

[0014] In some embodiments, the orthographic projection of the light source assembly onto the outer lens and the orthographic projection of the signal window of the radar detection device onto the outer lens do not intersect with each other.

[0015] In some embodiments, the orthographic projection of the light source assembly onto the outer lens is located in a light emission region, and when the light source assembly emits light, light output by the outer lens towards a front side has the shape of the light emission region;

[0016] the orthographic projection of the heating assembly onto the outer lens and the orthographic projection of the light source assembly onto the outer lens do not intersect with each other.

[0017] In some embodiments, the casing comprises a body part, and a protruding part protruding from the body part, the light source assembly being disposed on the body part, and the heating assembly being disposed on the protruding part.

[0018] In some embodiments, the light source assembly comprises a circuit board with a first opening, and a light source disposed on the circuit board, the protruding part passing through the first opening of the circuit board.

[0019] In some embodiments, the light source comprises multiple LEDs, the multiple LEDs being disposed on the circuit board uniformly around the first opening.

[0020] In some embodiments, the casing and the heating assembly are a one-piece member, the heating assembly being disposed within the casing; or

[0021] the heating assembly is fitted to a front side of the casing.

[0022] In some embodiments, a logo structure is provided on the outer lens;

[0023] the lighting device further comprises an inner lens, the inner lens being disposed at the front side of the light source assembly, and used to receive light emitted by the light source assembly and output the received light to the outer lens.

[0024] In some embodiments, the inner lens comprises a second opening, and the inner lens has the same shape as the light source assembly.

[0025] In some embodiments, the lighting device further comprises a heating control unit, disposed at a rear side of the casing, and controlling heating of the heating assembly according to a received control signal.

[0026] In some embodiments, the lighting device further comprises a support disposed at a rear side of the casing;

[0027] the support comprises a radar mounting part for mounting a radar detection device.

[0028] In some embodiments, the support further comprises a camera mounting part for mounting a camera;

[0029] the orthographic projection of the camera mounting part onto the outer lens and the orthographic projection of the heating assembly onto the outer lens do not intersect with each other.

[0030] A second aspect of the present application provides a motor vehicle, comprising a lighting device as provided in the first aspect and the embodiments above.Brief description of the drawings

[0031] is a 3D structural schematic drawing of a lighting device according to an embodiment of the present application.

[0032] is an exploded structural schematic drawing of the lighting device in.

[0033] is a front view of the lighting device in.

[0034] is a structural schematic drawing of section C-C of the lighting device in.Detailed description of the invention

[0035] Embodiments of the present application are described in detail below with reference to the drawings. It should be understood that these embodiments of the present application are mainly possible embodiments intended to illustrate the technical solution of the present application, and should not be interpreted as limitations of the technical solution of the present application. In this Description, identical or similar components are indicated with identical or similar reference labels.

[0036] At present, more and more motor vehicles are currently using radar detection devices (such as millimetre wave radar or lidar) for advanced driver assistance systems (ADAS). One feasible solution is to integrate a radar detection device in a vehicle lamp, but when the surface of the vehicle lamp is covered in ice in cold weather, the functionality of the radar detection device will be disrupted. In such circumstances, it is necessary to install a heater for the radar detection device, to remove ice. Heaters known to the applicant will often affect the vehicle lamp's styling, and may even affect the normal function of the radar detection device in use.

[0037] Thus embodiments of the present application propose a lighting device that can meet customers' demands with regard to styling while ensuring normal use of a radar detection device.

[0038] is a 3D structural schematic drawing of a lighting device according to an embodiment of the present application.is an exploded structural schematic drawing of the lighting device in, also showing a radar detection device 200.is a front view of the lighting device in.is a structural schematic drawing of section C-C of the lighting device in.

[0039] As shown in Figs. 1 - 4, embodiments of the present application propose a lighting device 100, the lighting device comprising a casing 110, a heating assembly 120, a light source assembly 130 and an outer lens 140. The heating assembly 120 is disposed on the casing 110, and has an openwork structure 121. The light source assembly 130 is disposed on the casing 110, and used to emit light. The outer lens 140 is disposed at a front side of the heating assembly 120 and the light source assembly 130; the outer lens 140 is used to receive light emitted by the light source assembly 130, and output the received light towards a front side of the outer lens 140. The heating assembly 120 is used to generate heat to heat the outer lens 140.

[0040] In this embodiment, the outer lens 140 is disposed at the front side of the heating assembly 120, and the heating assembly 120 can be energized to heat up, the heat generated by heating being able to remove ice formed on the front side of the outer lens 140. When the radar detection device 200 is integrated at a rear side of the lighting device 100, the removal of ice from the front side of the outer lens 140 avoids disruption to the functionality of the radar detection device by ice on the front side of the outer lens 140 in cold weather. In addition, the heating assembly 120 has an openwork structure 121; here, the term "openwork structure 121" refers to spaces not covered by the heating assembly 120. As a result of configuring the heating assembly 120 to be formed with the openwork structure 121, when the radar detection device 200 is integrated at the rear side of the lighting device 100, radar signals of the radar detection device 200 can be transmitted normally through the openwork structure 121, such that a signal window 210 of the radar detection device 200 receives and sends radar signals normally, without being affected by the heating assembly 120. Conversely, if no openwork structure 121 is provided, the entire heating assembly 120 is a complete plate-like structure, and since the heating assembly 120 mostly comprises metal material, in this case the heating assembly 120 will seriously affect the transmission of radar signals. Finally, the heating assembly 120 and the light source assembly 130 are separately provided on the casing 110, light emitted by the light source assembly 130 can be output through the outer lens to a front side of the lighting device 100 as a whole, and the lighting function can be used normally, without being disrupted by the heating assembly 120.

[0041] In this embodiment, the casing 110 may be an injection-moulded hard plastic member, so as to support other components. The heating assembly 120 may be made of opaque metal heating wire. However, in other embodiments, the heating assembly 120 may employ transparent heating wire; the present application does not restrict the specific material, shape and dimensions of the heating assembly, as long as the target heating function can be achieved without affecting radar functionality. The light source assembly 130 may be adhered to a front side of the casing 110 by thermally conductive adhesive, and may also be mounted on the front side of the casing 110 using a fastener 190. It is worth explaining that in the present application, "front side" means the side that is further forward in a front-side direction D as shown in, i.e. the left side from the perspective of, and "rear side" means the side that is further back in the front-side direction D, i.e. the right side from the perspective of. When the lighting device 100 is installed at a front end of a motor vehicle, the front-side direction D approximately or precisely points straight ahead of the motor vehicle.

[0042] In this embodiment, the rear side of the lighting device 100 is used for positioning the radar detection device; when the radar detection device is disposed at the rear side of the lighting device, the orthographic projection of the signal window of the radar detection device onto the outer lens 140 may be configured to be located in a heated region 141 of the outer lens 140. The heated region 141 is then the region on the outer lens 140 where radar signals pass through, the radar signals being received and transmitted mainly through the heated region 141 of the outer lens 140. At least a portion of the orthographic projection of the heating assembly 120 onto the outer lens 140 is located in the heated region 141, the heating assembly 120 being used to heat the heated region 141 of the outer lens 140. Preferably, the smallest enveloping circle of the orthographic projection of the heating assembly 120 onto the outer lens 140 completely covers the heated region 141, to completely remove ice from the heated region 141 of the outer lens 140, thereby ensuring normal use of the functionality of the radar detection device 200.

[0043] In this embodiment, the orthographic projection of the light source assembly 120 onto the outer lens 140 and the orthographic projection of the signal window 210 of the radar detection device 200 onto the outer lens 140 do not intersect with each other. Specifically, the orthographic projection of the radar detection device 200 onto the outer lens 140 is located in the heated region 141, and the orthographic projection of the light source assembly 120 onto the outer lens 140 is located in a light emission region 142, wherein the heated region 141 and the light emission region 142 do not intersect with each other, i.e. the light source assembly 120 will not affect the functionality of the radar detection device 200. Generally, the light source assembly 120 comprises metal electrically conductive structures which, if located directly in front of the signal window 210 of the radar detection device 200, will inevitably disrupt radar signals. In this embodiment, by configuring the orthographic projection of the light source assembly 120 onto the outer lens 140 and the orthographic projection of the signal window 210 of the radar detection device 200 onto the outer lens 140 so that they do not intersect with one another, disruption to radar signals by the light source assembly 120 can be effectively avoided.

[0044] In this embodiment, the orthographic projection of the light source assembly 130 onto the outer lens 140 is located in the light emission region 142, and the orthographic projection of the heating assembly 120 onto the outer lens 140 is located in the heated region 141, wherein the heated region 141 and the light emission region 142 are separated from each other and do not intersect with one another. That is, the heating assembly 120 will not be located directly in front of the light source assembly 130, and will not block light emitted by the light source assembly 130, thus avoiding disruption, by the heating assembly 120, to light output by the light source assembly 130. Thus, the lighting device 100 simultaneously has a light emission function, a heating and ice removal function, and a radar function.

[0045] Specifically, the casing 110 comprises a body part 111 and a protruding part 112 protruding from the body part, wherein the light source assembly 130 is disposed at a front side of the body part 111, and the heating assembly 120 is disposed on the protruding part 112. The light source assembly 130 comprises a circuit board 131 with a first opening 135, and a light source 132 disposed on the circuit board 131, wherein the protruding part 112 passes through the first opening 135 of the circuit board 131. The light source assembly 130 may be substantially annular, with the light source assembly 130 surrounding the protruding part 112. The light source 132 may comprise multiple light emitting diodes (LED), the multiple LEDs being arranged on the circuit board 131 uniformly around the first opening 135.

[0046] In this embodiment, the casing 110 and the heating assembly 120 may be a one-piece member, with the heating assembly 120 being embedded within the casing 110. During manufacture, an in-mould injection moulding process may be used to place the heating assembly 120 into a mould, and then perform injection moulding integrally with the casing 110. However, in other embodiments, the heating assembly 120 may be fitted to the front side of the casing 110; the casing 110 and the heating assembly 120 are separable, independent components, which are fitted together by bonding or another mechanical method.

[0047] The lighting device of the present application may be used as a LOGO lamp of a motor vehicle, or a lighting lamp or signal lamp with other functionality, wherein a logo structure 145 is provided on the outer lens 140, the logo structure 145 for example being V-shaped. When the light source assembly 130 emits light, the light output by the outer lens 140 towards a front side has the shape of the light emission region 142, the light emission region 142 being annular, and this annular light emission region 142 surrounding the logo structure 145. A region of the outer lens 140 other than the light emission region 142 may be configured to be opaque, such that the internal structure of the lighting device 100 cannot be observed from the outside, and the lighting device 100 thus has a better overall appearance.

[0048] In this embodiment, the lighting device 100 further comprises an inner lens 150, the inner lens 150 being disposed at the front side of the light source assembly 130, and used for receiving light emitted by the light source assembly 130, and outputting the received light to the outer lens 140. The inner lens 150 may be configured to have the same shape as the light source assembly 130; for example, the inner lens 150 comprises a second opening 155 corresponding to the first opening 135, and the inner lens 150 may be used to diffuse light emitted by the LEDs. In other embodiments, a separate inner lens 150 may not be provided; instead, an inner lens is integrated in the outer lens 140, thus being formed as part of the outer lens 140.

[0049] In this embodiment, the lighting device 100 further comprises a heating control unit 160; the heating control unit 160 may be disposed at a rear side of the casing 110, and the heating control unit 160 may control heating of the heating assembly 120 according to a received control signal. For example, the heating control unit 160 may receive a voltage or current control signal of an external controller, and emit heat of a corresponding power according to the control signal, so as to remove ice efficiently.

[0050] The lighting device 100 further comprises a support 170 and a gasket 180; the gasket 180 is disposed between the casing 110 and the support 170, and the support 170 is installed at the rear side of the casing 110. The support 170 comprises a radar mounting part 171, the radar mounting part 171 being used to mount the radar detection device 200.

[0051] The support 170 further comprises a camera mounting part 172, the camera mounting part 172 being used to mount a camera (not shown). With the camera mounting part 172 provided on the support 170, the lighting device 100 simultaneously has a camera capture function. Correspondingly, to avoid disruption to the camera function by the heating assembly 120, the orthographic projection of the camera mounting part 172 onto the outer lens 140 and the orthographic projection of the heating assembly 120 onto the outer lens 140 may be configured so that they do not intersect with one another, i.e. the camera mounting part 172 and the heating assembly 120 have no overlapping parts. For example, the camera mounting part 172 is located in a lower part of the support 170, and the radar mounting part 171 is located in an upper part of the support 170; by configuring the orthographic projection of the camera mounting part 172 onto the outer lens 140 and the orthographic projection of the heating assembly 120 onto the outer lens 140 so that they do not intersect with one another, i.e. such that the heating assembly 120 will not block the camera mounting part 172, it is ensured that when a camera is integrated at the rear side of the lighting device 100, a lens of the camera will be able to capture images or video normally, without being affected by the heating assembly 120.

[0052] The heating assembly 120 as a whole is thus able to achieve a heating and ice removal function without having any effect at all on normal use of the radar detection device and the camera. Since the transparent outer lens does not affect the camera function, there is no need for an accommodating hole in the outer lens 140, i.e. the outer lens 140 may be configured as a complete, solid structure, so as to reduce contamination of internal components of the lighting device 100 by external dust and other sources of contamination.

[0053] Embodiments of the present application also provide a motor vehicle, which may comprise the lighting device 100 described in any one of the embodiments above.

[0054] Although the present application has been explained with reference to the drawings, the embodiments disclosed in the drawings are intended to provide an exemplary explanation of preferred implementations of the present application, and must not be construed as limiting the present application. The dimensional proportions in the drawings are merely schematic, and must not be construed as limiting the present application.

[0055] Although some embodiments of the general concept of the present application have been shown and explained, those skilled in the art will understand that the present application may comprise other equivalent embodiments without departing from the general inventive concept of the present application, and the scope of protection of the present application is defined by the claims.

Claims

Lighting device (100), characterized by comprising:a casing (110);a heating assembly (120), disposed on the casing and having an openwork structure;a light source assembly (130), disposed on the casing and used for emitting light; andan outer lens (140), disposed at a front side of the heating assembly and the light source assembly, the outer lens being used to receive light emitted by the light source assembly, and output the received light towards a front side of the outer lens,wherein the heating assembly is used for generating heat to heat the outer lens.Lighting device according to Claim 1, characterized in that a rear side of the lighting device is used for positioning a radar detection device (200), and when the radar detection device is positioned at the rear side of the lighting device, the orthographic projection of a signal window (210) of the radar detection device onto the outer lens is located in a heated region (141) of the outer lens;a least a portion of the orthographic projection of the heating assembly onto the outer lens is located in the heated region, and the heating assembly is used to heat the heated region of the outer lens.Lighting device according to Claim 2, characterized in that the signal window of the radar detection device is enabled to receive and send radar signals normally as a result of having the heating assembly (120) formed with the openwork structure (121);the smallest enveloping circle of the orthographic projection of the heating assembly onto the outer lens completely covers the heated region.Lighting device according to Claim 2, characterized in that the orthographic projection of the light source assembly onto the outer lens and the orthographic projection of the signal window of the radar detection device onto the outer lens do not intersect with each other.Lighting device according to Claim 1, characterized in that the orthographic projection of the light source assembly (130) onto the outer lens is located in a light emission region (142), and when the light source assembly emits light, light output by the outer lens towards a front side has the shape of the light emission region;the orthographic projection of the heating assembly onto the outer lens and the orthographic projection of the light source assembly onto the outer lens do not intersect with each other.Lighting device according to any one of Claims 1 - 5, characterized in that the casing (110) comprises a body part (111), and a protruding part (112) protruding from the body part, the light source assembly being disposed on the body part, and the heating assembly being disposed on the protruding part.Lighting device according to Claim 6, characterized in that the light source assembly comprises a circuit board (131) with a first opening (135), and a light source (132) disposed on the circuit board, the protruding part passing through the first opening of the circuit board.Lighting device according to Claim 7, characterized in that the light source comprises multiple LEDs, the multiple LEDs being disposed on the circuit board uniformly around the first opening.Lighting device according to any one of Claims 1 - 5, characterized in that the casing and the heating assembly are a one-piece member, the heating assembly being disposed within the casing; orthe heating assembly is fitted to a front side of the casing.Lighting device according to any one of Claims 1 - 5, characterized in that a logo structure (145) is provided on the outer lens;the lighting device further comprises an inner lens (150), the inner lens being disposed at the front side of the light source assembly, and used to receive light emitted by the light source assembly and output the received light to the outer lens.Lighting device according to Claim 10, characterized in that the inner lens comprises a second opening (155), and the inner lens (150) has the same shape as the light source assembly.Lighting device according to any one of Claims 1 - 5, characterized in that the lighting device further comprises a heating control unit (160), disposed at a rear side of the casing, and controlling heating of the heating assembly according to a received control signal.Lighting device according to any one of Claims 1 - 5, characterized in that the lighting device further comprises a support (170) disposed at a rear side of the casing;the support comprises a radar mounting part (171) for mounting a radar detection device.Lighting device according to Claim 13, characterized in that the support further comprises a camera mounting part (172) for mounting a camera;the orthographic projection of the camera mounting part onto the outer lens and the orthographic projection of the heating assembly onto the outer lens do not intersect with each other.Motor vehicle, characterized in that the motor vehicle comprises the lighting device (100) according to any one of Claims 1 - 14.

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