Three-dimensional backlight lighting device

Abstract

The utility model discloses a three-dimensional backlight lighting device which comprises a structural part and a light-emitting module, the structural part and the light-emitting module are spliced into a three-dimensional backlight module, the outer surface of the backlight module is in a non-planar shape, and the light-emitting module emits light towards at least two directions. The backlight lighting device provided by the utility model has better heat dissipation and lighting effects.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, and in particular to a three-dimensional backlighting device. Background Technology

[0002] Some displays are equipped with backlight modules, which enable the screen to emit light evenly. This is achieved by using point or line light sources to emit light, which is then directed into a light guide plate. The light is guided by the light guide plate and continuously reflected forward within the plate. The light guide plate has light guide points (also called light source reflection points). When light hits these points, it disrupts the original reflection conditions within the light guide plate, causing the light to scatter and exit from the outer surface of the light guide plate. This results in the advantage of uniform light emission.

[0003] Currently, lighting devices that emit light through the aforementioned backlight module are mostly embedded in the ceiling. The outer surface of the backlight module is flat, and it emits light only directly downwards.

[0004] If a backlight module can be used to create a simple and three-dimensional lighting device, it will effectively improve heat dissipation and lighting effects. Utility Model Content

[0005] The purpose of this invention is to provide a three-dimensional backlighting device with better heat dissipation and lighting effects.

[0006] To achieve the above objectives, the solution of this utility model is: a three-dimensional backlighting device, including structural components and light-emitting modules, wherein the structural components and light-emitting modules are spliced ​​together to form a three-dimensional backlighting module, wherein the outer surface of the backlighting module is non-planar, and the light-emitting module emits light in at least two directions.

[0007] Furthermore, multiple light-emitting modules are provided, and the light emitted by each light-emitting module is not entirely in the same direction.

[0008] Furthermore, one light-emitting module is provided and distributed around the backlight module and on its bottom surface.

[0009] Furthermore, the structural component is provided with at least a second light source, which is used to emit light toward the outside of the backlight module.

[0010] Furthermore, the second light source is located on the bottom surface of the backlight module to emit light downwards, and the light-emitting module is located on the side of the backlight module.

[0011] Furthermore, the light-emitting module extends from the side of the backlight module to the bottom surface of the backlight module.

[0012] Furthermore, a cavity is formed within the structural components of the backlight module, a third light source is installed within the cavity, and an opening is provided to connect to the outside.

[0013] Furthermore, the third light source is distributed in a circular pattern around the inner wall of the cavity.

[0014] Furthermore, the opening includes an inlet and an outlet, and a light-transmitting tube is provided inside the cavity, which is sealed and connected from the inlet to the outlet.

[0015] Furthermore, a fan is also installed inside the cavity.

[0016] Furthermore, the structural component is a one-piece molded closed three-dimensional shape with the cavity formed inside, and the light-emitting module is disposed on the periphery of the structural component.

[0017] Furthermore, the light-emitting module includes a light guide plate, a reflector plate, an optical film, and a first light source. The light guide plate and the structural components are assembled into a three-dimensional shape. The reflector plate is located on the side of the light guide plate facing inward toward the backlight module. The optical film is disposed on the side of the light guide plate facing outward toward the backlight module. The first light source is disposed on the structural components, located at the edge of the light guide plate, for emitting light toward the light guide plate and directing the light into the light guide plate.

[0018] After adopting the above solution, the beneficial effects of this utility model are as follows: the structural components and the light-emitting module are spliced ​​together to form a three-dimensional backlight module. The outer surface of the backlight module is non-planar, thereby improving the heat dissipation effect through a larger surface area, and enabling the light-emitting module to emit light in at least two directions, thereby having a better lighting effect and achieving more uniform lighting in zones or spaces. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of Embodiment 1 of the present invention;

[0020] Figure 2 for Figure 1 A partial magnified view of point A in the middle;

[0021] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0022] Figure 4 This is a partial cross-sectional structural diagram of Embodiment 2 of the present invention;

[0023] Figure 5 This is a schematic diagram of a cross-sectional structure from another direction in Embodiment 2 of the present invention;

[0024] Figure 6 This is an exploded structural diagram of Embodiment 3 of the present invention;

[0025] Figure 7 This is an exploded structural diagram of the second light source disassembled in Embodiment 4 of this utility model;

[0026] Figure 8 A partial cross-sectional structural diagram of an embodiment in which a fan is installed inside a cavity;

[0027] Figure 9 This is a schematic diagram of the internal structure of the structural component through which the water supply flowed in the cavity of this utility model is circulated.

[0028] Labeling Explanation: 1-Structural component, 2-Light-emitting module, 3-Backlight module, 4-Second light source, 5-Heat dissipation hole, 6-Cavity, 8-Light guide plate, 9-Reflector plate, 11-First light source, 12-Fan, 13-Card slot, 14-First light source mounting slot, 15-Second light source mounting slot, 16-Top cover, 17-Circular inner shell, 18-Heat dissipation fins, 19-Third light source, 20-Inlet, 21-Outlet, 22-Light-transmitting tube. Detailed Implementation

[0029] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this invention is merely for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0031] This utility model provides a three-dimensional backlighting device, such as Figure 1-9As shown, the backlight module includes a structural component 1 and a light-emitting module 2. The structural component 1 and the light-emitting module 2 are assembled to form a three-dimensional backlight module 3. Preferred specific structures of the structural component 1 and the light-emitting module 2 are given later. The shape and material of the structural component 1 are not limited, while the light-emitting module 2 can adopt any existing side-lit or direct-lit light-emitting module structure. The outer surface of the backlight module 3 is non-planar, which is more conducive to heat dissipation. Because the outer surface of the light-emitting module 2 is non-planar, it can emit light in at least two directions. The specific shape of the outer surface of the light-emitting module 2 is not limited. For example, if the light-emitting module 2 is positioned to extend from the side of the backlight module 3 to the bottom surface of the backlight module 3, it can emit light towards the bottom and sides of the backlight module 3, achieving zoned lighting that illuminates the bottom and one side area of ​​the backlight module 3 while not illuminating the remaining areas of the space. For example, if the outer surface of the light-emitting module 2 is located on the bottom and around the perimeter of the backlight module 3, it can... Light is emitted downwards and around the backlight module 3 to achieve uniform illumination of the space. Multiple light-emitting modules 2 can be provided, each emitting light in a different direction. Each light-emitting module 2 is electrically connected to a controller (not shown in the attached diagram, a standard feature in lighting devices, and not elaborated upon in this embodiment). The controller is electrically connected to a power source, and by controlling the illumination of different light-emitting modules 2, the lighting in different areas of the space can be turned on or off. Furthermore, in a design where the light-emitting modules 2 do not cover the entire outer surface of the backlight module 3, the outer surface of the backlight module 3 can also be used to install a display screen, advertising board, or ambient light. The backlight module 3 can also house audio equipment, sensors, communication modules, etc. Additionally, it can be equipped with an energy storage battery and a photovoltaic solar panel, which provide power to the electrical components during power outages for emergency use.

[0032] Preferably, the light-emitting module 2 is a side-lit type, including a first light source 11, a light guide plate 8, a reflector 9, and an optical film; the first light source 11 can be EL, CCFL, or LED, and is located at the edge of the light guide plate 8 to emit light towards the light guide plate 8 and direct the light into the light guide plate 8; the light guide plate 8 and the structural component 1 are assembled into a three-dimensional shape, and the light guide plate 8 is made of high-transmittance acrylic plastic with a smooth surface. After the first light source 11 directs the light into the light guide plate 8, the light will undergo regular reflection inside the light guide plate 8. Light guide points are printed on one side of the light guide plate 8 within the backlight module 3, and the number, shape, and arrangement of the light guide points are not limited. When the light guide point is encountered during the reflection process inside the light plate 8, the light guide point will change the reflection path of the light, so that the light is emitted from the side of the light guide plate 8 outside the backlight module 3; the reflector 9 can be made of any material that can reflect light. The reflector 9 is located on the side of the light guide plate 8 facing the backlight module 3. The reflector 9 reflects the light leaking from the side of the light guide plate 8 facing the backlight module 3 back to the light guide plate 8 to improve the lighting efficiency; the optical film is set on the side of the light guide plate 8 facing the backlight module 3 and is pasted on the light guide plate 8 (the optical film is not shown in the figure). The optical film plays a role in uniform light and converging large-angle light for front observation, which is a conventional design on the light-emitting module;

[0033] Preferably, refer to the key points. Figure 3 , Figure 6 The backlight module 3 has a cavity 6 formed within it; see detailed reference. Figure 3 , Figure 4 As shown, preferably, the structural component 1 is a one-piece molded closed three-dimensional shape, with the cavity 6 formed inside, and the light-emitting module 2 is disposed around the structural component 1; see detailed reference. Figure 5 , Figure 9 A fan 12 may also be installed inside the cavity 6. In one embodiment, the cavity 6 is used to install a controller, and the fan 12 blows air towards the controller inside the cavity 6 to dissipate heat from the controller. Alternatively, the cavity 6 may be omitted, and the controller may be externally mounted. Heat dissipation fins 18 may also be provided on the structural component 1 to increase the heat dissipation area and thus improve the heat dissipation effect. In another embodiment, see [reference needed]. Figure 5As shown, a third light source 19 is installed inside the cavity 6. The structure of the third light source 19 installed inside the cavity 6 is not specifically limited; it can be glued or snapped onto the inner wall of the cavity 6. The third light source 19 can be an ultraviolet lamp. The cavity 6 has an opening connecting to the outside, allowing air or water (or other fluids) to flow through it, thus achieving the effect of disinfecting the air or water. The third light source 19 can also be other light sources that can be used for phototherapy. In a preferred embodiment, the opening includes an inlet 20 and an outlet 21. The cavity 6 forms a channel between the inlet 20 and the outlet 21. The third light source 4 is distributed around the channel on the inner wall of the cavity 6. Specifically, the third light source 19 extends in a strip shape from the inlet 20 to the outlet 21, and the third light source 19 is designed with... Multiple third light sources 19 are arranged around the channel in pairs, with each third light source 19 converging and radiating into the cavity 6. Compared to existing point, line, or area light sources used for disinfection, this design allows each third light source 19 to evenly radiate the fluid as it flows through the cavity 6, avoiding uneven disinfection caused by varying distances between the fluid and the light source. Furthermore, the dense, surrounding structure allows a smaller power third light source 19 to radiate onto a larger volume of fluid with a higher flow rate. The third light sources 19 dissipate heat through the inner wall of the cavity 6, providing good heat dissipation. The illumination time and power can be controlled by increasing or decreasing the length of each third light source 19 or by controlling the flow rate of the fluid through the cavity 6. (Focus on...) Figure 9 As shown, specifically when the cavity 6 is used for water flow, a light-transmitting tube 22 is installed inside the cavity, which is sealed and connected from the inlet 20 to the outlet 21. The light-transmitting tube 22 is preferably a quartz tube, so that the water flows into the light-transmitting tube 22 from the inlet 20, and flows out from the outlet 21 after being irradiated by the third light source 19. (Focus on...) Figure 4 , Figure 5 As shown, when the cavity 6 is used to supply air flow, the fan 12 is inside the cavity 6 and is used to draw outside air into the cavity 6 from the inlet 20, or to blow the air inside the cavity 6 out to the outside from the outlet 21.

[0034] Preferably, refer to the key points. Figure 6 As shown, in order to improve the heat dissipation effect during use, the light-emitting module 2 is provided with heat dissipation holes 5. Specifically, the heat dissipation holes 5 pass through the reflector 9 and the optical film in sequence. The heat dissipation is enhanced by the heat dissipation holes 5, and the number of heat dissipation holes 5 is unlimited.

[0035] In the more specific embodiment one, please refer to the following. Figure 1-3As shown, the backlight module 3 is rectangular, and the structural component 1 is square tubular. The center of the square tubular structural component 1 is the cavity 6. A slot 13 extends from the top surface of the structural component 1, through which the structural component 1 can be snapped onto the ceiling. The first light source 11 is disposed on the structural component 1. The left and right edges of the top surface of the structural component 1 respectively have first light source mounting slots 14 extending outward. The openings of the first light source mounting slots 14 face downward, and the first light source 11 is installed in the first light source mounting slots 14, illuminating the openings of the slots. The light guide plate 8 is disposed... One side edge of the light guide plate 8 is located at the opening of a first light source mounting groove 14. The light guide plate 8 extends around the lower part of the structural component 1 to the opening of another first light source mounting groove 14, that is, it is distributed on the left, right and lower sides of the backlight module 3. This allows the light emitted by the first light source 11 to be emitted from the lower side and the left and right sides of the backlight module 3 after passing through the light guide plate 8. The simple structure achieves uniform illumination in the space. In addition, the arrangement of the structural component 1 can also absorb the heat emitted by the light-emitting module 2 and the controller, and accelerate heat dissipation by utilizing its large surface area.

[0036] In the more specific second embodiment, the focus is on combining Figure 4 , Figure 5 As shown, the backlight module 3 is also rectangular. A second light source mounting groove 15 is provided in the middle of the bottom surface of the structural component 1. A second light source 4 for emitting light downwards is installed in the second light source mounting groove 15. The second light source 4 can be any existing light source device such as LED beads, LED strips, spotlights, or backlight emitting modules. Specifically, in this embodiment, multiple second light sources 4 are provided, and multiple second light sources 4 are arranged in a row. The rest of the structure of the structural component 1 is the same as in Embodiment 1. First light sources 11 are installed in the first light source mounting grooves 14 on the left and right sides, respectively. There are two light guide plates 8, located on the left and right sides of the structural component 1, respectively. The light guide plate 8 on the left side of the structural component 1 extends from the slot of the first light source mounting groove 14 on the left side to the second light source mounting groove 15. The light guide plate 8 on the right side of the structural component 1 extends from the slot of the first light source mounting groove 14 on the left side to the second light source mounting groove 15. The light guide plate 8 on the side extends from the slot of the first light source mounting slot 14 on the right side to the second light source mounting slot 15. In use, selectively turning on the first light source 11 on the corresponding side will enable zoned lighting on the left and right sides of the space. Turning on the second light source 4 can enhance the lighting below the backlight module 3. A third light source 19 is also installed in the cavity 6 of the structural component 1. There are four third light sources 19, which are respectively set on the upper, lower, left and right side walls of the cavity 6, and they are all long strip-shaped ultraviolet lamps. The cavity 6 of the structural component 1 has an inlet 20 at one end and an outlet 21 at the other end. A fan 12 is also installed in the cavity 6 of the structural component 1, so that the cavity 6 continuously exchanges air with the outside, sucking in the outside air into the cavity 6 for disinfection, and then expelling it from the outside.

[0037] In the more specific embodiment three, the focus is on combining Figure 6As shown, the backlight module 3 is cylindrical in shape. The structural component 1 includes an upper cover 16 and a cylindrical inner shell 17. The cylindrical inner shell 17 is arranged longitudinally, with its top end inserted into the center of the lower side of the upper cover 16. A first light source mounting groove 14 is arranged around the cylindrical inner shell 17 on the lower side of the upper cover 16. The first light source mounting groove 14 has a downward-facing opening. A downward-facing first light source 11 is installed in the first light source mounting groove 14. The light guide plate 8 is bowl-shaped with its opening facing upward. It is attached to the lower side of the upper cover 16, and its upper edge is directly opposite the opening of the first light source mounting groove 14. Thus, the light emitted by the first light source 11 enters the light guide plate 8, causing light to be emitted from the lower side and all sides of the backlight module 3. Uniform illumination in the space is achieved through a simple structure.

[0038] In the more specific embodiment four, the focus is on combining Figure 7 As shown, the backlight module 3 is cylindrical in shape. The arrangement of the structural component 1 and the first light source 11 is the same as in the third specific embodiment. The light guide plate 8 is tubular and longitudinally arranged, with its upper edge facing the slot of the first light source mounting groove 14. The light emitted by the first light source 11 enters the light guide plate 8, causing light to be emitted from all sides of the backlight module 3. A second light source 4 is installed at the bottom of the inner shell 17 of the cylindrical tube. Light is emitted to the bottom side of the backlight module 3 through the second light source 4. By turning on the second light source 4, the illumination below the backlight module 3 can be enhanced.

[0039] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A volumetric backlighting device, characterized by: It includes a structural component (1) and a light-emitting module (2), which are spliced ​​together to form a three-dimensional backlight module (3). The outer surface of the backlight module (3) is non-planar, and the light-emitting module (2) emits light in at least two directions.

2. The volumetric backlighting device of claim 1, wherein: The light-emitting module (2) is provided in multiple ways, and the light emitted by each light-emitting module (2) is not entirely in the same direction.

3. The volumetric backlighting device of claim 1, wherein: One light-emitting module (2) is provided and distributed around and on the bottom surface of the backlight module (3).

4. The volumetric backlight of claim 1, wherein: The structural component (1) is provided with at least a second light source (4), which is used to emit light toward the outside of the backlight module (3).

5. The volumetric backlight of claim 4, wherein: The second light source (4) is located on the bottom surface of the backlight module (3) to emit light downwards, and the light-emitting module (2) is located on the side of the backlight module (3).

6. The three-dimensional backlighting device as described in claim 5, characterized in that: The light-emitting module (2) extends from the side of the backlight module (3) to the bottom surface of the backlight module (3).

7. The three-dimensional backlighting device as described in claim 1, characterized in that: The backlight module (3) has a cavity (6) formed in the structural component (1), a third light source (19) is installed in the cavity (6), and an opening is provided to connect to the outside.

8. The three-dimensional backlighting device as described in claim 7, characterized in that: The third light source (19) is distributed around the inner wall of the cavity (6).

9. The three-dimensional backlighting device as described in claim 7, characterized in that: The opening includes an inlet (20) and an outlet (21), and a light-transmitting tube (22) is provided in the cavity (6) and is sealed and connected from the inlet (20) to the outlet (21).

10. The volumetric backlight of claim 7, wherein: A fan (12) is also installed inside the cavity (6).

11. The stereoscopic backlighting device as described in claim 7, characterized in that: The structural component (1) is a one-piece molded closed three-dimensional shape, with the cavity (6) formed inside, and the light-emitting module (2) is arranged around the structural component (1).

12. The three-dimensional backlighting device as described in claim 1, characterized in that: The light-emitting module (2) includes a light guide plate (8), a reflector plate (9), an optical film, and a first light source (11). The light guide plate (8) and the structural component (1) are assembled into a three-dimensional shape. The reflector plate (9) is located on the side of the light guide plate (8) facing the backlight module (3). The optical film is set on the side of the light guide plate (8) facing the backlight module (3). The first light source (11) is set on the structural component (1) and located on the edge of the light guide plate (8). It is used to emit light towards the light guide plate (8) and to shoot the light into the light guide plate (8).

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