Lighting device for vehicles and vehicles

Abstract

Lighting device for vehicles, which is connected to a vehicle body, characterized in that the lighting device for vehicles comprises a housing and a lens, wherein the housing and the lens are interlocked and enclosed to form a mounting cavity, wherein the mounting cavity is provided with a printed circuit board arrangement; wherein the printed circuit board arrangement comprises at least two printed circuit boards, wherein at least two of the printed circuit boards are spaced apart from each other in a first direction and two adjacent printed circuit boards are electrically connected, wherein the printed circuit boards are provided with a plurality of light-emitting elements, and wherein the plurality of light-emitting elements are arranged on the same side of the printed circuit boards; wherein at least a part of the aperture is a light-transmitting element, and wherein the light-emitting ends of the plurality of light-emitting elements face at least a light-transmitting part of the aperture; where the first direction is a direction perpendicular to the aperture and the housing.

Description

TECHNICAL FIELD

[0001] The present application relates, without being limited thereto, to the technical field of lighting means, in particular a lighting device for vehicles and a vehicle. STATE OF THE ART

[0002] Automobiles have become indispensable means of transportation in human society. The rapid development of the automotive industry is placing ever-increasing demands on vehicle lighting. An exterior roof lamp is a lighting device mounted on the top of a vehicle that provides lighting for the exterior of the vehicle.

[0003] In the prior art, the roof lamp is illuminated by a light source, such as an LED (light-emitting diode), arranged inside the roof lamp. However, in the prior art, the arrangement of the light source is slightly restricted by the design of the roof lamp's external structure, and the lighting effect is limited. CONTENT OF THIS APPLICATION

[0004] The embodiments of the present application provide a lighting device for vehicles and a vehicle that can reduce the mounting space and make good use of the interior space of the vehicle lamp, which is useful for avoiding the arrangement of the light-emitting elements being restricted by the design of the external structure of the vehicle lamp, which in turn is advantageous for increasing the number of light-emitting elements to be installed and the area of ​​light illumination, and for improving the lighting effect of the light-emitting elements.

[0005] To achieve the above-mentioned objectives, the present application offers the following technical solutions: In a first aspect, embodiments of the present application provide a vehicle lighting device connected to a vehicle body, the vehicle lighting device comprising a housing and a bezel, the housing and the bezel being locked and enclosed together to form a mounting cavity, the mounting cavity being provided with a circuit board assembly; the circuit board assembly comprising at least two circuit boards, at least two of the circuit boards being spaced apart from each other in a first direction and two adjacent ones of the circuit boards being electrically connected, the circuit boards being provided with a plurality of light-emitting elements, and the plurality of light-emitting elements being arranged on the same side of the circuit boards;wherein at least a portion of the aperture is a light-transmitting element, and wherein the light-emitting ends of the plurality of light-emitting elements face at least a light-transmitting portion of the aperture; wherein the first direction is a direction perpendicular to the aperture to the housing.

[0006] The lighting device provided by the present application comprises a circuit board assembly, the circuit board assembly comprising at least two circuit boards, at least two of the circuit boards being spaced apart from each other in a first direction and two adjacent ones of the circuit boards being electrically connected, the circuit boards being provided with a plurality of light-emitting elements, and the plurality of light-emitting elements being arranged on the same side of the circuit boards. In this way, on the one hand, it is useful to reduce the mounting space of the circuit boards and the light-emitting elements in the direction from the bezel to the housing, and on the other hand, it is useful to avoid the arrangement of the light-emitting elements being limited by the external structure of the vehicle lamp, for example, by the design of the bezel or the housing.On the other hand, the rational use of the interior space of the vehicle lamp allows more light-emitting elements to be installed in the limited space, thereby increasing the number of light-emitting elements to be arranged and the area of ​​light illumination, which in turn is beneficial to improving the luminous effect of the light-emitting elements.

[0007] In one possible embodiment, two adjacent circuit boards are located in the same horizontal plane along the first direction and form a gap.

[0008] In one possible embodiment, at least a portion of the positive projections of two adjacent circuit boards in the same plane in which the housing is arranged overlap along the first direction.

[0009] In one possible embodiment, the circuit board arrangement comprises a supply line, wherein the supply line is arranged on the side of the circuit board facing away from the light-emitting element, and wherein two adjacent circuit boards are electrically connected via the supply line.

[0010] In one possible embodiment, the printed circuit board assembly comprises a printed circuit board holder, wherein the printed circuit board holder is arranged on the side of the printed circuit board close to the housing, and wherein the printed circuit board is mounted on the printed circuit board holder; wherein the printed circuit board is provided with terminal ends, and wherein the printed circuit board holder is provided with a lead avoidance region, wherein the lead avoidance region is used to avoid the terminal ends, wherein the first end of the lead is connected to the terminal of one of the printed circuit boards and the second end of the lead passes through the lead avoidance region and is connected to the terminal of an adjacent printed circuit board.

[0011] In one possible embodiment, the circuit board holder is provided with a cable fastening element on the side facing away from the light-emitting element, and wherein the supply line located between two adjacent circuit boards is snapped into the cable fastening element.

[0012] In one possible embodiment, the printed circuit board assembly comprises a fastening element, wherein the fastening element is arranged on the side of the printed circuit board near the bezel; wherein the fastening element is provided with a plurality of light-transmitting fastening ends, and wherein a plurality of light-emitting ends of the light-emitting elements are arranged one-to-one in the plurality of fastening ends.

[0013] In one possible embodiment, the circuit board comprises a plurality of stacked circuit layers along the direction from the bezel to the housing, wherein two adjacent circuit layers are electrically connected, and wherein the light-emitting element is arranged on the circuit layer on the side of the circuit board near the bezel.

[0014] In a second aspect, embodiments of the present invention provide a vehicle comprising a vehicle body and a lighting device, wherein the vehicle lighting device is connected to the vehicle body.

[0015] The vehicle provided in the present application includes the vehicle lighting device provided in any of the above embodiments and thus has the same technical effect. Namely, the vehicle lighting device includes a circuit board assembly, the circuit board assembly comprising at least two circuit boards, the at least two circuit boards being spaced apart from each other in a first direction, the circuit boards being provided with a plurality of light-emitting elements, and the plurality of light-emitting elements being arranged on the same side of the circuit boards.In this way, on the one hand, it is beneficial to reduce the mounting space of the circuit boards and the light-emitting elements in the direction from the bezel to the housing, and it is beneficial to avoid the arrangement of the light-emitting elements being limited by the external structure of the vehicle lamp, for example, the design of the bezel or the housing. On the other hand, the rational use of the interior space of the vehicle lamp allows more light-emitting elements to be installed in the limited space, thereby increasing the number of light-emitting elements to be arranged and the area of ​​light illumination, which in turn is beneficial to improving the luminous effect of the light-emitting elements.

[0016] The construction of the present application and its other purposes and advantageous effects will be made more apparent and understandable by the description of the preferred embodiments taken in conjunction with the accompanying drawings. SHORT DESCRIPTION OF THE DRAWING

[0017] In order to more clearly explain the technical solution in the embodiments of the present application or in the prior art, the drawings to be used in the explanation of the embodiments or for the prior art are briefly presented below. Obviously, the drawings presented below show only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings based on these drawings, provided no creative work is performed. Fig. 1 is a schematic diagram I showing the structure of a lighting device for vehicles in an embodiment of the present application; Fig. 2 is a schematic diagram II showing the structure of a lighting device for vehicles in an embodiment of the present application; Fig. 3 is a schematic diagram III showing the structure of a lighting device for vehicles in an embodiment of the present application; Fig. 4 is a schematic diagram IV showing the structure of a lighting device for vehicles in an embodiment of the present application; Fig. 5 is a schematic diagram showing a disassembled structure of a lighting device for vehicles in an embodiment of the present application; Fig. 6 is a schematic diagram I showing the structure of a method for arranging printed circuit boards in an embodiment of the present application; Fig. 7 is a schematic diagram II showing the structure of a method for assembling printed circuit boards in an embodiment of the present application; Fig. 8 shows a schematic diagram I of a cross section of a lighting device for vehicles in an embodiment of the present application; Fig. 9 shows a schematic diagram II of a cross section of a lighting device for vehicles in an embodiment of the present application. List of reference symbols:

[0018] 100- Lighting device for vehicles; 110 - Housing; 120 - Bezel; 130 - Mounting cavity; 140- PCB assembly; 141 - printed circuit board; 1411- connector; 142 - Lead wire; 143 - PCB holder; 1431 - Lead wire avoidance area; 1432 - Cable fastening element; 144 - Fastening element; 1441 - Fastening end; 150 - light-emitting element; 160 - drive element; 170 - air-permeable membrane; 180 - screws; 181 - nuts; 182 - washers; 190 - rivets. DETAILED DESCRIPTION

[0019] An exterior roof lamp is a lighting device mounted on the top of a vehicle to provide lighting functions for the exterior of the vehicle. The roof lamp is illuminated by a light source, such as an LED (Light Emitting Diode), disposed therein. Specifically, in the prior art, the roof lamp includes a bezel and a rear shell locked together, the bezel and the rear shell enclosing a light cavity, and two circuit boards are disposed inside the light cavity. The two circuit boards are arranged vertically parallel to each other, that is, the two circuit boards are arranged in a direction along the direction from the bezel to the rear shell, and the two circuit boards are each provided with an LED lamp on a surface opposite to each other.

[0020] However, in the above arrangement, since the two circuit boards are arranged along the direction from the bezel to the rear shell, the LED lamps on both sides are located close to the bezel and the rear shell, respectively. In this way, the arrangement of the LED lamps is slightly restricted by the external structure of the roof lamp, such as the design of the bezel or the rear housing, and the arrangement space is very limited, so only a limited number of LED lamps or light modules can be installed, resulting in a limited lighting effect. In addition, with such an arrangement, the heat dissipation from the circuit board and the LED lamps encounters certain difficulties.

[0021] Due to the above technical problems, embodiments of the present application provide a lighting device for vehicles and a vehicle, the lighting device for vehicles comprising a circuit board assembly, the circuit board assembly comprising at least two circuit boards, the at least two circuit boards being spaced apart from each other in a first direction, the circuit boards being provided with a plurality of light-emitting elements, and the plurality of light-emitting elements being arranged on the same side of the circuit boards. In this way, it is useful, on the one hand, to reduce the mounting space of the circuit boards and the light-emitting elements and to avoid the arrangement of the light-emitting elements being restricted by the external structure of the vehicle lamp, such as the design of the bezel or the housing.On the other hand, by making reasonable use of the interior space of the vehicle lamp, more light-emitting elements can be installed in the limited space, thereby increasing the number of light-emitting elements to be installed and the range of the light, which in turn contributes to improving the lighting effect of the light-emitting elements.

[0022] In order to clarify the purpose, technical solutions, and advantages of the embodiments of the present application, the technical solutions in the embodiments of the present application are described clearly and completely below in conjunction with the attached drawings in the embodiments of the present application. Of course, the described embodiments are only a part of the embodiments of the present application, not all embodiments. Starting from the embodiments of the present application, all other embodiments that a person skilled in the art can make without creative work fall within the scope of the present application.

[0023] The embodiments of the present application provide a vehicle, and there is no limitation on the type of vehicle. The vehicle includes a vehicle body and a lighting device, the lighting device being connected to the vehicle body. There is no limitation on the manner in which the lighting device and the vehicle body are connected. For example, the lighting device and the vehicle body may be detachably connected. For example, the vehicle body may be mounted to a base, and the lighting device may be connected to the base by a structure such as a suction cup, an adhesive button, or the like; or the headlight may be attached to the base by a structure such as a pin, a snap fastener, a screw, etc., which is not limited by this embodiment.In this way, the lighting device can be removed for repair or replacement or similar in case of malfunction or other problems.

[0024] The type of vehicle lamp is not limited. For example, the vehicle lamp may be a roof lamp mounted on top of the vehicle body; a headlight mounted on both sides of the vehicle head to illuminate the road at night; or other types of lights. In the present embodiment, a roof lamp is mainly shown as an example of the vehicle lamp.

[0025] As in the Fig. As shown in Figures 1 to 5, the vehicle lighting device 100 may include a housing 110 and a bezel 120, wherein the housing 110 and the bezel 120 are locked together and enclosed in a mounting cavity 130, and a printed circuit board assembly 140 is disposed in the mounting cavity 130. In this way, the mounting cavity 130 may play a role in mounting and protecting the printed circuit board assembly 140, which is useful for preventing the external environment from affecting the printed circuit board assembly 140 and ensuring the normal operation and reliability of the vehicle lighting device 100.

[0026] As in the Fig. As shown in Figures 5 to 7, the printed circuit board assembly 140 comprises at least two printed circuit boards 141, wherein the at least two printed circuit boards 141 are spaced apart from one another along a first direction, and two adjacent printed circuit boards 141 are electrically connected. The first direction is a direction perpendicular to the direction from the bezel 120 to the housing 110.

[0027] In the embodiment of the present application, the direction from the aperture 120 to the housing 110 may be determined with reference to the y-direction in the Fig. 5 to 7, and the first direction can be defined with reference to the x-direction in the Fig. 5 to 7 are shown.

[0028] Compared with the prior art in which the circuit boards 141 are arranged vertically, the arrangement of the circuit boards 141 of the present application is advantageous in reducing the mounting space of the circuit boards 141 and the light-emitting elements in the direction from the bezel 120 to the housing 110, which in turn is advantageous in avoiding the arrangement of the light-emitting elements 150 being limited by the design of the external structure of the vehicle lamp, such as the bezel 120 or the housing 110. Furthermore, by limiting the at least two circuit boards 141 spaced along the first direction, the two circuit boards 141 are spaced with gaps between them, which contributes to improving the heat dissipation efficiency of the circuit boards 141.

[0029] In the embodiments of the present application, there is no limitation on the number of circuit boards 141. For example, the number of circuit boards 141 may be two, and the two circuit boards 141 are spaced from each other in the first direction; or the number of circuit boards 141 may be three, and the three circuit boards 141 are spaced from each other in the first direction; or the number of circuit boards 141 may be a plurality, and the plurality of circuit boards 141 are spaced from each other in the first direction.

[0030] In the embodiment of the present application, two circuit boards 141 are mainly shown as an example for illustration.

[0031] The circuit boards 141 are provided with a plurality of light-emitting elements 150, and the plurality of light-emitting elements 150 are arranged on the same side of the circuit boards 141; the at least part of the aperture 120 is a light-transmitting element, and the light-emitting end of the plurality of light-emitting elements 150 is directed toward the light-transmitting at least part of the aperture 120.

[0032] For example, the light-emitting elements 150 in the embodiments of the present application may be LED lamps.

[0033] It should be noted that the "same side" in the sense that the plurality of light-emitting elements 150 are arranged on the same side of the circuit board 141 refers to the side of the circuit board 141 that is close to the bezel 120. Such an arrangement, on the one hand, facilitates the mounting of the light-emitting elements 150, which is advantageous for reducing the mounting space of the light-emitting elements 150 in the direction from the bezel 120 to the housing 110 compared to the prior art, and is thus advantageous for avoiding the arrangement of the light-emitting elements 150 being limited by the structural design of the housing 110. On the other hand, it is advantageous for eliminating the lead wire 142.

[0034] In the embodiments of the present application, there is no limitation on the material used to manufacture the circuit board 141. For example, the manufacturing material of the circuit board 141 may be aluminum; alternatively, the manufacturing material of the circuit board 141 may be copper; alternatively, the manufacturing material of the circuit board 141 may be plastic. In the present embodiment, the manufacturing material of the circuit board 141 is mainly exemplified as an aluminum plate, which has a better heat dissipation effect, which in turn allows the light-emitting element 150 to operate at a higher temperature and improves the service life of the light-emitting element 150.

[0035] In the embodiments of the present application, there is no limitation on the number of light-emitting elements 150. For example, the number of light-emitting elements 150 may be a plurality of, for example, 30, 40, 50, 100, and the like, and the embodiments of the present application do not limit this. Furthermore, the arrangement of the plurality of light-emitting elements 150 is not limited. For example, the plurality of light-emitting elements 150 may be arranged in two, three, or more rows on the same side of the circuit board 141, and the number of light-emitting elements 150 in each row can be set according to actual needs, and the embodiments of the present application are not limited to this.

[0036] In the embodiments of the present application, the power of the light-emitting elements 150 is not limited. For example, the light-emitting element 150 may adopt an LED light source with a power of 0.4W-1W. For example, the light-emitting element 150 may adopt a 0.4W LED light source, a 0.5W LED light source, a 0.7W LED light source, or a 1W LED light source. It should be understood that the power of the light-emitting element 150 in the embodiment of the present application includes, but is not limited to, the power of the light-emitting element 150.In the embodiments of the present application, the light-emitting element 150 is mainly illustrated as an example of an LED light source with a power of 0.5 W, which not only affects the light output of the light-emitting element 150 but also minimizes the heat generation of the light source, which in turn can extend the service life of the light-emitting element 150.

[0037] In the embodiments of the present application, the material of the panel 120 is not limited. For example, the panel 120 may be a glass plate, or the panel 120 may be an acrylic plate, or the panel 120 may be a transparent plastic plate made of polyvinyl chloride as the main component. This is not limited by the present embodiments.

[0038] The present embodiments of the present application are not limited with regard to the connection method between the panel 120 and the housing 110. For example, the panel 120 and the housing 110 can be connected using screws 180 and nuts 181, or the panel 120 and the housing 110 can be connected by gluing, snapping, and the like. In this embodiment, the panel 120 and the housing 110 can be screwed together, for example.

[0039] In some embodiments, as in Fig. 5, a washer 182, such as an O-ring, may also be arranged at the location where the housing 110 is connected to the screw 180, thus improving the sealing of the housing 110.

[0040] Accordingly, the lighting device 100 for vehicles provided by embodiments of the present application is provided with a plurality of light-emitting elements 150 arranged on the circuit boards 141 by spacing the at least two circuit boards 141 in the first direction, and the plurality of light-emitting elements 150 are arranged on the same side of the circuit boards 141.In this way, on the one hand, it is advantageous to reduce the mounting space of the circuit boards 141 and the light-emitting elements 150 in the direction from the shade 120 to the housing 110, and it is advantageous to avoid the arrangement of the light-emitting elements 150 being limited by the external structure of the vehicle lamp, such as the design of the shade 120 or the housing 110; on the other hand, by judiciously utilizing the interior space of the vehicle lamp, more light-emitting elements 150 can be mounted in the limited space, thereby increasing the number of light-emitting elements 150 to be arranged and the area of ​​light illumination, which in turn is advantageous for improving the luminous effect of the light-emitting elements 150.

[0041] In one possible embodiment, as in Fig. As shown in Figure 6, two adjacent circuit boards 141 are located on the same plane and form a gap along the first direction. Note that the gap value between the two adjacent circuit boards 141 is not further limited and can be adjusted according to actual needs.

[0042] With such an arrangement, on the one hand, the mounting space of the circuit boards 141 and the light-emitting element 150 in the direction from the bezel 120 to the housing 110 can be minimized, which is useful for avoiding the arrangement of the light-emitting element 150 being limited by the external structure of the vehicle lamp, such as the construction of the bezel 120 or the housing 110; on the other hand, the two circuit boards 141 form a gap therebetween, which is useful for improving the heat dissipation efficiency of the circuit boards 141; and on the other hand, it is convenient to be connected by means of the leads 142.

[0043] In one possible embodiment, as in Fig. As shown in Figure 7, at least a portion of the positive projections of two adjacent printed circuit boards 141 in the same plane in which the housing 110 is arranged may overlap along the first direction. Note that the overlapping area of ​​the positive projections of the two adjacent printed circuit boards 141 in the same plane in which the housing 110 is arranged is not further limited and can be adjusted according to actual needs. Such an arrangement ensures that the mounting space of the printed circuit boards 141 on the bezel 120 on the housing 110 is reduced, but also reduces the mounting space of the printed circuit boards 141 in the first direction and does not affect the mounting of the light-emitting element 150.

[0044] It should be noted that the arrangement of the circuit board 141 includes, but is not limited to, the manner described above, and the present embodiment is not limited thereto.

[0045] In one possible version, as in the Fig. 4 and Fig. 5, the circuit board assembly 140 may comprise a supply line 142, wherein the supply line 142 is arranged on the side of the circuit board 141 facing away from the light-emitting element 150 and two adjacent circuit boards 141 are electrically connected via the supply line 142.

[0046] There is no limitation on the length of the lead wire 142, which can be wired according to actual needs. In practice, for example, the housing 110 may be provided with lead holes, the lead wire 142 is connected to the circuit boards 141 one by one, and the free ends of the lead wire 142 are passed through the lead holes and electrically connected to an external electrical device to ensure the normal operation of the circuit boards 141.

[0047] Configured in this way, compared with the connection method of connecting two circuit boards 141 in the prior art, the lead wire 142 of the present application is able to avoid the light-emitting element 150, and the light-emitting element 150 and the lead wire 142 will not interfere with each other, thereby advantageously ensuring the normal operation of the lead wire 142 and the light-emitting element 150. At the same time, the circuit design is optimized, the circuit structure is simplified, the number of components and the length of the connection lines are reduced, and the wiring paths and connections are optimized as much as possible, which contributes to reducing the space occupied by the circuit and reducing the complexity of the circuit.

[0048] In one possible embodiment, as shown in the Fig. 5, Fig. 8 and Fig. As shown in Figure 9, the printed circuit board assembly 140 may include a printed circuit board holder 143, wherein the printed circuit board holder 143 is arranged on one side of the printed circuit board 141 near the housing 110, and the printed circuit board 141 is mounted on the printed circuit board holder 143. In this way, on the one hand, it helps to connect the plurality of printed circuit boards 141 to each other, which is advantageous for improving the mounting stability of the printed circuit boards 141; on the other hand, it is convenient to be connected by the leads 142 and can improve the connection stability of the lead 142, which then ensures the normal operation of the printed circuit boards 141 and the lead 142 to the greatest extent possible.

[0049] In particular, as in Fig. 4, the circuit board 141 may be provided with a terminal 1411, and the circuit board holder 143 may be provided with a lead-avoidance portion 1431, wherein the lead-avoidance portion 1431 is used to avoid the terminal 1411. A first end of the lead 142 is connected to the terminals 1411 of one of the circuit boards 141, and a second end of the lead 142 passes through the lead-avoidance portion 1431 and is connected to the terminals 1411 of the adjacent circuit boards 141.

[0050] For example, as in Fig. 4, the terminals 1411 can be formed on the bottom surface of the circuit board 141, and the lead-preventing portion 1431 can be opened on the bottom surface of the circuit board holder 143, which facilitates the connection of the lead 142. Furthermore, the opening position and the number of openings of the terminal 1411 and the lead-preventing portion 1431 are not limited and can be adjusted according to actual needs.

[0051] The shape of the opening of the lead-preventing portion 1431 is not limited. For example, the lead-preventing portion 1431 may be a through-hole opened in the circuit board holder 143, and the second end of the lead 142 is led out of the through-hole and connected to the terminal 1411 of the adjacent circuit board 141. For example, the lead-preventing portion 1431 may be a lead groove formed in the circuit board holder 143, the groove opening of which faces the lower end of the circuit board holder 143, the second end of the lead 142 is led out of the through-hole and connected to the terminal 1411 of the adjacent circuit board 141. The present embodiment does not limit this.

[0052] In the embodiments of the present application, the manner of connection between the circuit board holder 143 and the circuit board 141 is not limited. For example, the circuit board holder 143 and the housing 110 may be connected by rivets 190; or the circuit board holder 143 and the circuit board 141 may be connected by gluing, snapping, and the like. In this embodiment, as shown in Fig. 9, the rivet connection between the PCB holder 143 and the printed circuit board 141 is shown primarily as an example. Here, the use of the rivet connection is advantageous for shortening the length of the printed circuit board assembly 140 along the direction from the bezel 120 to the housing 110 compared to the connection by screws 180, which in turn is advantageous for reducing the mounting space of the printed circuit board assembly 140.

[0053] In the embodiments of the present application, there is no limitation on the connection method between the circuit board holder 143 and the housing 110. For example, the circuit board holder 143 and the housing 110 can be connected using the screws 180; or the circuit board holder 143 and the housing 110 can be connected by gluing, snapping, and the like. In one possible embodiment, as shown in Fig. 4, the circuit board holder 143 and the housing 110 are shown mainly as an example of a screw connection.

[0054] In one possible embodiment, as described in Fig. As shown in Figure 4, the side of the circuit board holder 143 facing away from the light-emitting element 150 may be provided with a cable fixing member 1432, and the lead wire 142 arranged between two adjacent circuit boards 141 is locked into the cable fixing member 1432. In this way, the cable fixing member 1432 can play a supporting, fixing, and restricting role for the lead wire 142, which is useful for preventing problems such as tangling of the lead wire 142 and ensuring the normal operation of the lead wire 142.

[0055] In some embodiments, without limiting the specific type of cable fastening element 1432, the cable fastening element 1432 may, for example, be a snap-in groove formed in the circuit board holder 143, and the lead 142 may be snapped into the snap-in groove; or the cable fastening element 1432 may be an over-hole in the circuit board holder 143, and the lead 142 may be snapped into the over-hole. This is not limited by this embodiment.

[0056] In one possible embodiment, as in Fig. 5, the circuit board assembly 140 may include a fastening element 144, wherein the fastening element 144 is arranged on one side of the circuit board 141 near the bezel 120. The fastening element 144 is provided with a plurality of light-transmitting fastening ends 1441, and the light-emitting ends of the plurality of light-emitting elements 150 are arranged one-to-one in the plurality of fastening ends 1441. In this way, the fastening ends 1441 can play an effective fastening role for the light-emitting elements 150 to facilitate the support of the light-emitting elements 150 and thereby ensure the normal operation of the light-emitting elements 150.

[0057] For example, the fastening element 144 in the present application may be a decorative frame.

[0058] There is no limitation on the number of arrangements of the fixing ends 1441 and the arrangement method. For example, the number of arrangements of the fixing ends 1441 and the number of light-emitting elements 150 may be the same, and the arrangement method of the plurality of fixing ends 1441 and the arrangement method of the plurality of light-emitting elements 150 may be the same. In this way, it is advantageous to improve the assembly stability of the plurality of light-emitting elements 150 and the plurality of fixing ends 1441, which in turn ensures the normal operation of the plurality of light-emitting elements 150.

[0059] In some embodiments, the fastener 144 and the circuit board holder 143 may be connected using the screw 180 and the nut 181; or the fastener 144 and the circuit board holder 143 may be connected by gluing, snapping, and the like. In this embodiment, the fastener 144 and the circuit board holder 143 are primarily illustrated as an example of a screw connection. In this way, the installation stability of the fastener 144 and the circuit board holder 143 can be improved, which in turn ensures the mounting stability of the light-emitting element 150.

[0060] In one possible embodiment, as in Fig. As shown in Figure 5, the present application may further include a drive element 160, which may be integrated on the circuit board 141. This reduces the weight of the vehicle lighting device 100, occupies less space in the vehicle, and contributes to cost savings.

[0061] In one possible embodiment, as in Fig. As shown in Figure 5, the housing 110 may be provided with an air-permeable membrane 170 that allows gas circulation between the mounting cavity 130 and the outside, which is advantageous for preventing fogging within the mounting cavity 130; or the air-permeable membrane 170 may be arranged on the bezel 120. The embodiments of the present application do not limit this.

[0062] In one possible embodiment, the circuit board 141 may include multiple stacked circuit layers along the direction from the bezel 120 to the housing 110. Two adjacent circuit layers are electrically connected to each other, and the light-emitting element 150 is arranged on the circuit layer on the side of the circuit board 141 near the bezel 120. In this way, more circuit layers can be added in a limited space, thereby increasing the capacity of the circuit design.

[0063] It should be noted that the layering of the circuit board 141 refers to the circuit board 141 formed by stacking a plurality of circuit layers. Each circuit layer can have independent circuit wiring, and the electrical connection of the different layers can be realized by means of via holes. In this way, on the one hand, by arranging the signal and ground layers between the different layers, the interference between the signals can be effectively isolated and reduced, thereby improving signal integrity and reliability. On the other hand, the multi-layer circuit layers can increase the line density, so that more signal and power lines can be laid in a limited space and a more compact circuit design is possible.On the other hand, multilayer circuitry can increase the number of dedicated layers for different signal types, which helps reduce signal loss, crosstalk, and delay problems, as well as improve the quality and speed of signal transmission.

[0064] In some embodiments, adjacent circuit layers may be connected by hot riveting, which is advantageous compared to connecting with screws 180 to save mounting space. Among other things, the rivet points may be distributed around the perimeter of the circuit board 141.

[0065] The present application provides a lighting device and a vehicle, the lighting device comprising a printed circuit board assembly, the printed circuit board assembly comprising at least two printed circuit boards, at least two of the printed circuit boards being spaced apart from each other in a first direction and two adjacent ones of the printed circuit boards being electrically connected, the printed circuit boards being provided with a plurality of light-emitting elements, and the plurality of light-emitting elements being arranged on the same side of the printed circuit boards. In this way, on the one hand, it is useful to reduce the mounting space of the printed circuit boards and the light-emitting elements in the direction from the bezel to the housing, and on the other hand, it is useful to avoid the arrangement of the light-emitting elements being limited by the external structure of the vehicle lamp, for example, by the design of the bezel or the housing.On the other hand, the rational use of the interior space of the vehicle lamp allows more light-emitting elements to be installed in the limited space, thereby increasing the number of light-emitting elements to be arranged and the area of ​​light illumination, which in turn is beneficial to improving the luminous effect of the light-emitting elements.

[0066] In the description of the present application, it is to be understood that the terms, e.g. "center", "longitudinal", "transverse", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "above", "below", "inside", "outside", indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the attached drawings, are used only for convenience and to simplify the description of the present application and do not indicate or imply that the device or element referred to has a particular orientation or must be constructed and operated with a particular orientation, and therefore should not be construed as limiting the present application.

[0067] Furthermore, the terms "comprise" and "have," and all variations thereof, are intended to cover non-exclusive inclusion. For example, a process, procedure, system, product, or display that includes a series of steps or units need not be limited to the clearly listed steps or units, but may include other steps or units that are not clearly listed or that are inherent in the process, procedure, product, or display.

[0068] In the description of the present application, it should be noted that the terms "assembled," "connected," "attached," "attached," unless expressly stated and limited otherwise, are to be understood broadly, e.g., as either a fixed connection, a detachable connection, or a one-piece connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two elements. The specific meaning of the above terms in this application will be clear to a person skilled in the art.

[0069] Finally, it should be noted that the above embodiments serve only to illustrate the technical solution of the present application, rather than limiting it. Although the present application will be explained in more detail in connection with the above embodiments, those skilled in the art should understand that they may modify the technical solutions listed in the above embodiments or replace the technical features partially or entirely with equivalent ones. With these modifications or replacements, the corresponding technical solutions should still be considered to be covered by the spirit and scope of the technical solutions of the respective embodiments of the present application.

Claims

[1] Lighting device for vehicles connected to a vehicle body, characterized by that the lighting device for vehicles comprises a housing and a bezel, wherein the housing and the bezel are locked and enclosed together to form a mounting cavity, wherein the mounting cavity is provided with a printed circuit board assembly; wherein the circuit board assembly comprises at least two circuit boards, wherein at least two of the circuit boards are spaced apart from each other in a first direction and two adjacent ones of the circuit boards are electrically connected, wherein the circuit boards are provided with a plurality of light-emitting elements, and wherein the plurality of light-emitting elements are arranged on the same side of the circuit boards; wherein at least a portion of the aperture is a light-transmitting element, and wherein the light-emitting ends of the plurality of light-emitting elements face at least one light-transmitting portion of the aperture; wherein the first direction is a direction perpendicular to the bezel to the housing. [2] Lighting device for vehicles according to claim 1, characterized by that two adjacent circuit boards are located in the same horizontal plane along the first direction and form a gap. [3] Lighting device for vehicles according to claim 1, characterized by that at least a part of the positive projections of two adjacent printed circuit boards in the same plane in which the housing is arranged overlap along the first direction. [4] Lighting device for vehicles according to one of claims 1 to 3, characterized by that the printed circuit board arrangement comprises a supply line, wherein the supply line is arranged on the side of the printed circuit board facing away from the light-emitting element, and wherein two adjacent printed circuit boards are electrically connected via the supply line. [5] Lighting device for vehicles according to claim 4, characterized byin that the printed circuit board assembly comprises a printed circuit board holder, wherein the printed circuit board holder is arranged on the side of the printed circuit board near the housing, and wherein the printed circuit board is mounted on the printed circuit board holder; wherein the printed circuit board is provided with terminal ends, and wherein the printed circuit board holder is provided with a lead avoidance region, wherein the lead avoidance region is used to avoid the terminal ends, wherein the first end of the lead is connected to the terminal of one of the printed circuit boards and the second end of the lead passes through the lead avoidance region and is connected to the terminal of an adjacent printed circuit board. [6] Lighting device for vehicles according to claim 5, characterized bythat the circuit board holder is provided with a cable fastening element on the side facing away from the light-emitting element, and wherein the supply line located between two adjacent circuit boards is snapped into the cable fastening element. [7] Lighting device for vehicles according to one of claims 1 to 3, characterized by in that the printed circuit board assembly comprises a fastening element, wherein the fastening element is arranged on the side of the printed circuit board near the bezel; wherein the fastening element is provided with a plurality of light-transmitting fastening ends, and wherein a plurality of light-emitting ends of the light-emitting elements are arranged one-to-one in the plurality of fastening ends. [8] Lighting device for vehicles according to one of claims 1 to 3, characterized bythat along the direction from the bezel to the housing, the circuit board comprises a plurality of stacked circuit layers, wherein two adjacent circuit layers are electrically connected, and wherein the light-emitting element is arranged on the circuit layer on the side of the circuit board near the bezel. [9] Lighting device for vehicles according to claim 5, characterized by that the PCB holder is riveted to the PCB and / or that the housing is screwed to the cover. [10] Vehicle, characterized by that it comprises a vehicle body and a vehicle lighting device according to one of claims 1 to 9, wherein the vehicle lighting device is connected to the vehicle body.

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