Light-emitting module and lighting device
Patent Information
- Application Number
- CN202522611402.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
Smart Images
Figure CN224932627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, and in particular to a light-emitting module and a lighting device. Background Technology
[0002] Light-emitting modules are common electronic devices used to assist users in illuminating their surroundings or creating ambiance. For example, multiple light-emitting modules are installed on the backlight strip of a monitor to emit light and create an atmosphere. However, the structure of common light-emitting modules dictates that they emit light directly outward during illumination (forward illumination means that the light-emitting chip emits light from a surface parallel to the side connected to the pins). In this case, some light will illuminate the working surface, while some light will illuminate other areas and fail to reach the working surface, resulting in wasted light. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a light-emitting module and an illumination device.
[0004] The technical problem solved by this utility model embodiment is addressed by the following technical solution: A light-emitting module includes a bracket, at least one light-emitting chip, and an optical lens. The bracket has a first surface and a second surface arranged adjacent to each other. The first surface is provided with connection pins. The at least one light-emitting chip is mounted on the bracket and located on one side of the second surface, and the light-emitting end of the light-emitting chip is arranged in a direction away from the second surface. The optical lens is disposed on the second surface and is used to refract the light emitted by the at least one light-emitting chip.
[0005] In some embodiments, along a direction perpendicular to the first surface, the distance between the central axis of the light-emitting chip and the first surface is d1, and the distance between the central axis of the support and the first surface is d2, satisfying d1≠d2. Further, d1<d2 is satisfied.
[0006] In some embodiments, the bracket has a groove recessed along a direction perpendicular to the second surface, and at least one light-emitting chip is disposed at the bottom of the groove.
[0007] In some embodiments, the sidewalls of the groove are inclined relative to the bottom surface of the groove, and along a direction perpendicular to the second surface and away from the groove, the area of the opening of the groove is larger than the area of the bottom of the groove.
[0008] In some embodiments, the light-emitting module includes a light-transmitting colloid filled in a groove, the light-transmitting colloid being disposed between a bracket and an optical lens, the light-transmitting colloid connecting the optical lens and the bracket respectively, and the light-transmitting colloid covering the light-emitting chip.
[0009] In some embodiments, the light-transmitting colloid includes epoxy resin or silicone; or, the light-transmitting colloid includes a first filling surface, a second filling surface, and an enclosing wall surface, with the first filling surface and the second filling surface respectively connected to the two ends of the enclosing wall surface, the first filling surface and the second filling surface being disposed opposite to each other in a direction perpendicular to the second surface, and the enclosing wall surface being disposed at an angle relative to the first filling surface, the first filling surface abutting against the bottom of the groove, the enclosing wall surface abutting against the side wall surface, and the second filling surface being connected to the optical lens.
[0010] In some embodiments, the bracket includes an elevating portion and a mounting portion. One end of the elevating portion is connected to the mounting portion, and the other end of the elevating portion is provided with a connecting pin. The mounting portion is equipped with an optical lens and at least one light-emitting chip.
[0011] In some embodiments, the light-transmitting colloid includes epoxy resin or silicone, and / or the optical lens includes a polarizing lens or a condensing lens.
[0012] In some embodiments, there are at least two light-emitting chips, and the at least two light-emitting chips are disposed on the support at a straight-line interval, and the distance between each light-emitting chip and the first surface is equal.
[0013] The technical problem solved by this utility model embodiment also adopts the following technical solution: A lighting device includes at least one of the above-described light-emitting modules and a circuit board, wherein the light-emitting module is electrically connected to the circuit board.
[0014] The beneficial effects of this utility model embodiment are as follows: The light-emitting module provided in this application embodiment includes a bracket, at least one light-emitting chip, and an optical lens. The bracket has a first surface and a second surface arranged adjacent to each other, and the first surface is provided with connection pins. At least one light-emitting chip is mounted on the bracket and located on one side of the second surface, and the light-emitting end of the light-emitting chip is arranged in a direction away from the second surface. The optical lens is disposed on the second surface and is used to refract the light emitted by the at least one light-emitting chip. Compared with the existing light-emitting modules that emit light in the forward direction during operation, the light-emitting module of this application, because the connection pins and the optical lens are disposed on two adjacent surfaces of the bracket, allows the light-emitting surface of the light-emitting chip to emit light laterally relative to the circuit board when the light-emitting module is connected to the circuit board through the connection pins. This enables the light from the light-emitting module to emit light in a preset direction, which is beneficial to improving the light utilization rate of the light-emitting module. Attached Figure Description
[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0016] Figure 1 This is a schematic diagram of the structure of a light-emitting module according to one embodiment of this application; Figure 2 yes Figure 1 Exploded view; Figure 3 yes Figure 1 A sectional view; Figure 4 This is a schematic diagram of the structure of a light-emitting module according to another embodiment of this application; Figure 5 yes Figure 4 Exploded view; Figure 6 yes Figure 4 A sectional view; Figure 7 This is a schematic diagram of the structure of a light-emitting module according to another embodiment of this application; Figure 8 yes Figure 7 Exploded view; Figure 9 This is a schematic diagram of the structure of a lighting device according to another embodiment of this application; In the figure: 1. Light-emitting module; 2. Support; 3. Light-emitting chip; 4. Optical lens; 5. Light-transmitting colloid; 2a. First surface; 2b. Second surface; 4a. Arc-shaped surface; 21. Connecting pin; 22. Groove; 221. Side wall; 222. Bottom surface; 51. First filling surface; 52. Second filling surface; 53. Enclosing wall; 201. Mounting part; 202. Heightening part; 100. Lighting device; 20. Circuit board; 30. Protective adhesive layer. Detailed Implementation
[0017] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0019] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0020] Example 1 like Figures 1-3 As shown, one embodiment of this application provides a light-emitting module 1, including a bracket 2, at least one light-emitting chip 3, and an optical lens 4. The bracket 2 has a first surface 2a and a second surface 2b arranged adjacent to each other. The first surface 2a is provided with a connection pin 21. At least one light-emitting chip 3 is mounted on the bracket 2 and located on the side of the second surface 2b. The optical lens 4 is disposed on the second surface 2b and is used to refract the light emitted by the at least one light-emitting chip 3. Compared with the existing light-emitting modules that emit light in the forward direction during operation, the light-emitting module 1 of this application has the connection pin 21 and the optical lens 4 arranged on two adjacent surfaces of the bracket 2. During use, the connection pin 21 of the light-emitting module 1 is soldered to the circuit board of the electrical device. At this time, the side where the light-emitting chip 3 is located will face a predetermined side of the circuit board, so that the light-emitting surface where the light-emitting chip 3 is located can emit light from the side relative to the circuit board, so that the light of the light-emitting module 1 emits light in the predetermined direction, which is beneficial to improving the light utilization rate of the light-emitting module 1.
[0021] Understandably, the optical lens 4 can be a polarizing lens, a condensing lens, or other types of lenses. The specific type can be set according to the needs, as long as the light emitted by the light-emitting chip 3 is allowed to be refracted after passing through the optical lens 4.
[0022] To facilitate understanding of the purpose of the light emitted by the light-emitting module 1 in this embodiment of the application being directed toward a predetermined side of the bracket 2, the following explanation will be based on the light strip on the back of the display as an example. However, this does not mean that the light-emitting module 1 can only be applied to the light strip on the back of the display; it can also be applied to other electronic products.
[0023] Generally, the backlight strip on the back of a monitor is used to create ambiance. It has multiple existing light-emitting modules. When these modules emit light in the forward direction, some light shines on the back center of the monitor, in addition to the sides. However, the light in the back center is blocked and cannot be seen by the user. Only the light shining on the edges of the monitor contributes to creating ambiance, which is a waste of light. However, when using the light-emitting module 1 in this embodiment of the application on the backlight strip, the light emitted by the light-emitting chip 3 of the light-emitting module 1 can be directed more towards the edges of the monitor. This reduces the risk of some of the light emitted by the light-emitting chip 3 directly shining on the back center of the monitor, which helps to make full use of the light emitted by the light-emitting chip 3 and is more conducive to creating a lighting atmosphere.
[0024] It should be noted that the bracket 2 contains a circuit board (not shown) that is electrically connected to the light-emitting chip 3 and the connection pins 21. The light-emitting chip 3 is indirectly electrically connected to the connection pins 21 through the circuit board. In use, the connection pins 21 are soldered to the circuit board of the electrical device, thus indirectly connecting the light-emitting chip 3 to the circuit. The operation of the light-emitting chip 3 can be controlled by the circuit within the circuit board. The multiple connection pins 21 can have different functions according to functional requirements; for example, they may include input connection pins 21, output connection pins 21, or ground pins for connecting to the circuit.
[0025] The number of light-emitting chips 3 can be set as needed, and can be one, two, three, or more. Furthermore, the distribution of the multiple light-emitting chips 3 on the support 2 can be set as needed, for example, they can be distributed at equal intervals along a straight line. In this embodiment, the multiple light-emitting chips 3 are arranged along a straight line on the support 2.
[0026] In some embodiments, there are at least two light-emitting chips 3, and the at least two light-emitting chips 3 are arranged at a straight interval on the support 2, and the distance between each light-emitting chip 3 and the first surface 2a is equal. This helps to ensure that the light emitted by the multiple light-emitting chips 3 can be better directed to the outside after being straightened by the optical lens 4, which helps to create a better lighting atmosphere.
[0027] In some embodiments, the light-emitting module 1 further includes a light-transmitting colloid 5, which is disposed between the bracket 2 and the optical lens 4. The light-transmitting colloid 5 connects the optical lens 4 and the bracket 2 respectively, and covers the light-emitting chip 3.
[0028] The optical lens 4 and the bracket 2 can be connected by adhesive, double-sided tape, or other adhesive materials, or by a snap-fit structure combining clips and slots. Other structures can also be used, depending on the specific requirements, as long as the connection between the two is achieved. Similarly, the light-emitting chip 3 and the bracket 2 can be connected by welding, by using conductive adhesive, or other methods, depending on the specific needs.
[0029] It should be understood that the light-transmitting colloid 5 in the embodiments of this application can prevent the light-emitting chip 3 from directly contacting the optical lens 4, thereby protecting the light-emitting chip 3, and can also reinforce the light-emitting chip 3 on the bracket 2.
[0030] It should be noted that the light-transmitting colloid 5 is made of potting material, which can be epoxy resin, silicone, or other light-transmitting materials. Similarly, the optical lens 4 can be made of epoxy resin, silicone, or other light-transmitting materials. Furthermore, in order to enable the light emitted by the light-emitting chip 3 to better transmit through the light-transmitting colloid 5 or the optical lens 4, the light-transmitting material used in the light-transmitting colloid 5 can be doped with diffusion particles, so as to mix the light emitted by multiple light-emitting chips 3 and then direct it towards the optical lens 4.
[0031] In some embodiments, the surface of the optical lens 4 facing away from the bracket 2 is an arc-shaped surface 4a.
[0032] In some embodiments, such as Figure 3 As shown, along the direction X perpendicular to the first surface 2a, the distance between the central axis L1 of the light-emitting chip 3 and the first surface 2a is d1, and the distance between the central axis L2 of the support 2 and the first surface 2a is d2, satisfying d1≠d2.
[0033] That is, with the central axis L1 of the bracket 2 as the boundary, the light-emitting chip 3 can be disposed on the side closer to the connection pin 21 or on the side farther away from the connection pin 21. In this embodiment, d1 < d2 is satisfied. In this case, the light-emitting chip 3 is disposed on the side closer to the connection pin 21, so that the light emitted from the side of the light-emitting chip 3 away from the connection pin 21 is refracted more towards the side farther away from the connection pin 21 under the action of the optical lens 4. This is beneficial to make full use of the light emitted by the light-emitting chip 3 and reduce the risk of wasting the light emitted by the light-emitting chip.
[0034] Example 2 like Figures 4-6As shown, the light-emitting module 1 provided in another embodiment of this application, in addition to having the structure of the light-emitting module 1 of Embodiment 1 described above, also has the following structure: In some embodiments, such as Figures 5-6 As shown, the bracket 2 has a groove 22 recessed along the direction Y perpendicular to the second surface 2b. At least one light-emitting chip 3 is disposed at the bottom of the groove 22, and the light-transmitting colloid 5 is filled in the groove 22. In this way, the light-transmitting colloid 5 can be housed by the groove 22, reducing the space occupied by the light-transmitting colloid 5, thereby helping to reduce the overall thickness of the light-emitting module 1 in the direction Y perpendicular to the second surface 2b.
[0035] In some embodiments, such as Figures 5-6 As shown, the sidewall 221 of the groove 22 is inclined relative to the bottom surface 222 of the groove 22, and along a direction perpendicular to the second surface 2b and away from the groove 22, the area of the opening of the groove 22 is larger than the area of the bottom of the groove 22. Thus, by utilizing the inclined arrangement of the sidewall 221 of the groove 22, light emanating from the side of the light-emitting chip 3 and directed towards the sidewall 221 of the groove 22 can be reflected, allowing more light to pass through the optical lens 4 and be emitted, which is beneficial for further utilization of the light emitted by the light-emitting chip 3. Understandably, the shape of the groove 22 can be a circular trumpet shape or a non-circular trumpet shape (such as a square shape), which can be set according to the needs. Furthermore, the side wall surface 221 of the groove 22 is a reflective surface for reflecting light.
[0036] In some embodiments, such as Figure 5 As shown, the light-transmitting colloid 5 includes a first filling surface 51, a second filling surface 52, and an enclosing wall surface 53. The two ends of the enclosing wall surface 53 are respectively connected to the first filling surface 51 and the second filling surface 52. The first filling surface 51 and the second filling surface 52 are arranged opposite each other in a direction Y perpendicular to the second surface 2b, and the enclosing wall surface 53 is inclined relative to the first filling surface 51. The first filling surface 51 abuts against the bottom of the groove 22, and the enclosing wall surface 53 abuts against the side wall surface 221. The second filling surface 52 is connected to the optical lens 4. That is, the shape of the light-transmitting colloid 5 is similar to the shape of the groove 22, which facilitates the embedding of the light-transmitting colloid 5 into the groove 22. At the same time, the inclined arrangement of the enclosing wall surface 53 facilitates demolding during production.
[0037] In this embodiment of the light-emitting module 1, a groove 22 is provided on the support 2 to accommodate the light-transmitting colloid 5, thereby reducing the overall thickness of the light-emitting module 1 in the direction Y perpendicular to the second surface 2b. Furthermore, the side wall 221 of the groove 22 is inclined relative to the bottom surface 222 of the groove 22, which can reflect the light emitted by the light-emitting chip 3 from the side onto the side wall 221 of the groove 22, thereby allowing more light to pass through the optical lens 4 and be emitted, which is beneficial for further utilization of the light emitted by the light-emitting chip 3.
[0038] Example 3 Unlike the light-emitting module 1 in Embodiment 2, such as Figures 7-8 As shown, the light-emitting module 1 provided in this application embodiment, in addition to having the structure in Embodiment 2 described above, also has the following structure: In some embodiments, such as Figures 7-8 As shown, the bracket 2 includes an elevation portion 202 and a mounting portion 201. One end of the elevation portion 202 is connected to the mounting portion 201, and the other end of the elevation portion 202 is provided with a connection pin 21. The mounting portion 201 mounts the light-transmitting colloid 5, the optical lens 4, and at least one light-emitting chip 3. In this embodiment, the mounting portion 201 is equivalent to the bracket 2 in embodiment two. That is, in this embodiment of the application, the bracket 2 increases the distance between the mounting portion 201 and the connection pin 21 by setting the elevation portion 202, thereby raising the position of the light-transmitting colloid 5, the optical lens 4, and at least one light-emitting chip 3 relative to the connection pin 21, preventing the light-emitting area of the light-emitting module 1 from being blocked and preventing the light path of the light-emitting module from being damaged.
[0039] It should be noted that in this embodiment, the central axis of the bracket 2 refers to the central axis of the mounting part 201.
[0040] Example 4 like Figure 9 As shown, the lighting device 100 provided in this application embodiment includes at least one of the above-mentioned light-emitting modules 1 and a circuit board 20, wherein the light-emitting module 1 is electrically connected to the circuit board 20.
[0041] When there are multiple light-emitting modules 1, the multiple light-emitting modules 1 are located on the same side of the circuit board 20 and can be spaced apart along the length of the circuit board 20. This helps to enhance the lighting effect of the lighting device 100 and create a better lighting atmosphere.
[0042] In some embodiments, the lighting device 100 further includes a protective adhesive layer 30, which is disposed on the side of the circuit board 20 facing the light-emitting module 1, and the thickness of the protective adhesive layer 30 is less than the minimum distance between the optical lens 4 and the circuit board 20. That is, the protective adhesive layer 30 does not contact the optical lens 4, thus avoiding interference with the light path propagation of the optical lens 4. The protective adhesive layer 30 can also provide anti-static protection and protect other electrical components on the circuit board 20 (such as resistors, capacitors, control chips, etc.).
[0043] In some embodiments, the heightening portion 202 of the light-emitting module 1 increases the vertical distance between the light-emitting chip 3 and the optical lens 4 and the first surface 2a, which helps to reduce the risk of the adhesive coming into contact with the optical lens 4 when applying adhesive to the surface of the circuit board 20, and avoids the adhesive solidifying and causing adverse effects on the optical lens 4. It is understandable that when the lighting device 100 is used on a display in this embodiment of the application, when it is set on the back of the display, since each light-emitting module 1 of the lighting device 100 can refract the light emitted by the light-emitting chip 3 and direct it to a preset side of the bracket 2, more light can be emitted from the edge of the display, which is beneficial to enhance the lighting effect of the lighting device 100 and create a better lighting atmosphere. The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A light-emitting module, characterized in that, include: The bracket has a first surface and a second surface arranged adjacent to each other, and the first surface is provided with connection pins; At least one light-emitting chip is mounted on the bracket and located on one side of the second surface, and the light-emitting end of the light-emitting chip is arranged in a direction away from the second surface; An optical lens is disposed on the second surface, the optical lens being used to refract light emitted by at least one of the light-emitting chips.
2. The light-emitting module according to claim 1, characterized in that, Along a direction perpendicular to the first surface, the distance between the central axis of the light-emitting chip and the first surface is d1, and the distance between the central axis of the bracket and the first surface is d2, satisfying d1≠d2.
3. The light-emitting module according to claim 2, characterized in that, The condition d1 < d2 is satisfied.
4. The light-emitting module according to claim 1, characterized in that, The bracket has a groove recessed along a direction perpendicular to the second surface, and at least one of the light-emitting chips is disposed at the bottom of the groove.
5. The light-emitting module according to claim 4, characterized in that, The sidewall of the groove is inclined relative to the bottom surface of the groove, and along a direction perpendicular to the second surface and away from the groove, the area of the opening of the groove is larger than the area of the bottom of the groove.
6. The light-emitting module according to claim 5, characterized in that, The light-emitting module includes a light-transmitting colloid filled in the groove, the light-transmitting colloid being disposed between the bracket and the optical lens, the light-transmitting colloid connecting the optical lens and the bracket respectively, and the light-transmitting colloid covering the light-emitting chip.
7. The light-emitting module according to claim 6, characterized in that, The light-transmitting colloid includes a first filling surface, a second filling surface, and an enclosing wall surface. The two ends of the enclosing wall surface are respectively connected to the first filling surface and the second filling surface. The first filling surface and the second filling surface are arranged opposite each other in a direction perpendicular to the second surface, and the enclosing wall surface is inclined relative to the first filling surface. The first filling surface abuts against the bottom of the groove, the enclosing wall surface abuts against the side wall surface, and the second filling surface is connected to the optical lens.
8. The light-emitting module according to claim 1, characterized in that, The bracket includes a heightening part and a mounting part. One end of the heightening part is connected to the mounting part, and the other end of the heightening part is provided with the connection pin. The mounting part is used to mount the optical lens and at least one of the light-emitting chips.
9. The light-emitting module according to any one of claims 1-8, characterized in that, The optical lens includes a polarizing lens or a condensing lens.
10. The light-emitting module according to claim 6 or 7, characterized in that, The light-transmitting colloid includes epoxy resin or silicone.
11. A lighting device, characterized in that, It includes at least one light-emitting module as described in any one of claims 1-10 and a circuit board, wherein the light-emitting module is electrically connected to the circuit board.