Light source mounting structure and ceiling lamp

Abstract

The utility model provides a kind of light source mounting structure, including lamp body and light source component, lamp body includes base and the lampshade part extended from base, base is equipped with mounting face, mounting face is equipped with locating post and tablet;Light source component includes multiple split type setting light emitting unit, light emitting unit includes light source board and the LED lamp pearl fixedly attached to light source board, light source board includes oppositely arranged emitting surface and back, and the locating hole passing through emitting surface and back, back is coated with adhesive;Locating post is inserted into locating hole, and locating post does not protrude from emitting surface, tablet is bent and is tightly pressed in light source board, light source component is fixedly attached on mounting face by adhesive.The light source mounting structure improves the overall waterproof performance under the premise of ensuring firm, stable and not affecting light output effect;At the same time, simplify installation process, improve assembly efficiency.The utility model also provides a ceiling lamp using the above light source mounting structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting devices, specifically relating to a light source installation structure and a ceiling light. Background Technology

[0002] Canopy lights are widely used in large venues such as factories, stadiums, logistics warehouses, and agricultural greenhouses due to their high power and wide illumination range.

[0003] Currently, the light source components of ceiling lights are mostly installed and fixed by using screws and nuts to drill holes in the light body. However, in semi-enclosed spaces such as stadiums and agricultural greenhouses, the light bodies with mounting holes are prone to liquid seeping into the light body during rainy weather or in environments requiring sprinklers. This can cause short circuits in the light source components or lead to excessive humidity inside the light body during operation, thus affecting the lifespan of the light source components.

[0004] Existing ceiling lights have been optimized for rain and water resistance, such as using gaskets to seal the nut end or employing screwless nut installation methods. However, installing gaskets only delays water seepage from the mounting hole; over time, the gaskets will still fail due to aging and other reasons. While existing screwless nut installation methods are waterproof, their installation security is weaker than that of screws and nuts, making them prone to detachment due to vibration and other factors. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a light source mounting structure. Positioning is achieved by inserting positioning pins into positioning holes without protruding from the light-emitting surface. Then, the light source assembly is fixed to the mounting surface using a pressing plate, bending, and adhesive. This ensures a secure and stable fixation without affecting the light output, while preventing water seepage and improving waterproofing. Furthermore, it simplifies the installation of the light source assembly and improves the assembly efficiency of larger lamps.

[0006] The technical effect to be achieved by this utility model is realized through the following technical solution: In a first aspect, this utility model provides a light source mounting structure, comprising: The lamp body includes a base and a lampshade extending from the base, the base having a mounting surface, the mounting surface having a positioning post and a pressure plate; and The light source assembly includes multiple light-emitting units arranged separately. Each light-emitting unit includes a light source plate and LED beads attached and fixed to the light source plate. The light source plate includes a light-emitting surface and a back surface arranged opposite to each other, and a positioning hole penetrating the light-emitting surface and the back surface. The back surface is coated with an adhesive. The positioning post is inserted into the positioning hole and does not protrude from the light-emitting surface; the pressure plate is bent and pressed against the light source plate; and the light source assembly is fixed to the mounting surface by adhesive.

[0007] In some implementations, a plurality of LED beads are arranged in an array on the light-emitting surface to form a light-emitting area, and the positioning hole is disposed in the light-emitting area.

[0008] In some implementations, the pressure plate is located near the junction of the base and the lampshade portion. The pressure plate includes a fixing portion and a bending portion. The fixing portion is fixed to the mounting surface, and the bending portion extends away from the mounting surface. The end of the bending portion is bent toward the light source plate and pressed against the outer edge of the light source plate.

[0009] In some implementations, the distance between the end of the bent portion and the nearest LED in the light-emitting area is 'a', and the distance between the nearest LED and the outer edge of the light source board is 'b', with the following relationship: 2mm ≤ a < b ≤ 5mm.

[0010] In some implementations, the two positioning holes are symmetrically arranged in the light-emitting area near the edge of the light source board, and the axis of symmetry of the positioning holes coincides with the center line of the bent portion.

[0011] In some implementations, multiple light-emitting units are arranged around the mounting surface to form a roughly ring-shaped light-emitting body. The distance between adjacent light-emitting units is c, where c satisfies: 2mm < c < 4mm.

[0012] In some implementations, the positioning post has a columnar or conical structure, and the thickness of the positioning post is less than the thickness of the light source plate.

[0013] In some implementations, when the positioning post is a columnar structure, the positioning post is interference-fitted with the light source plate.

[0014] Secondly, this utility model provides a ceiling light, including a driving power supply and the above-mentioned light source mounting structure. The base is a ring structure, and the base extends obliquely along the inner edge towards the light emission direction to form a heat dissipation part. The heat dissipation part is provided with a mounting cavity, and the driving power supply is installed in the mounting cavity. The driving power supply is electrically connected to the light emission unit.

[0015] In some implementations, the base, the lampshade, and the heat dissipation part are integrally formed.

[0016] In summary, this utility model has at least the following advantages: 1. The light source mounting structure provided by this utility model achieves positioning by inserting the positioning post into the positioning hole without protruding from the light-emitting surface. Then, the light source plate is pressed and tightened by bending the pressure plate, and the light source component is attached and fixed to the mounting surface with adhesive. This replaces the screw and nut installation scheme. Under the premise of ensuring a firm and stable fixation without affecting the light output effect, it avoids the risk of water leakage due to screw holes and significantly improves the overall waterproof performance.

[0017] 2. The light source mounting structure provided by this utility model greatly simplifies the installation process of the light source components compared with the fixing method of screws and nuts, especially for larger ceiling lights and other lamps, thus improving assembly efficiency.

[0018] 3. The ceiling light provided by this utility model has significantly improved overall waterproof performance and service life due to the adoption of the above-mentioned light source installation structure, thus reducing the failure rate of the ceiling light; at the same time, for large ceiling lights, the production cost will also be reduced due to the significant reduction in assembly time. Attached Figure Description

[0019] Figure 1 This is an axonometric view of the light source mounting structure in Example 1 from a bottom-view perspective.

[0020] Figure 2 This is an exploded view of the light source mounting structure in Example 1.

[0021] Figure 3 This is an axonometric view of the light source mounting structure when the end of the bent portion in Example 1 is not bent.

[0022] Figure 4 for Figure 1 A magnified view of point A in the image.

[0023] Figure 5 This is an axonometric view of the light source mounting structure in Example 2 from a bottom-view perspective.

[0024] Figure 6 This is a schematic diagram of the installation of positioning columns and light source boards with different structures in Example 2.

[0025] Figure 7 This is an axonometric view of the ceiling light in Example 3 from a bottom-view perspective.

[0026] Figure 8 This is a schematic diagram of the light output path of the light source component in Example 3.

[0027] Marked in the image: 100. Light source installation structure; 200. Ceiling light; 1. Lamp body; 11. Base; 111. Mounting surface; 1111. Positioning post; 1112. Pressing plate; 1113. Fixing part; 1114. Bending part; 12. Lamp cover; 13. Heat dissipation part; 131. Mounting cavity; 2. Light source assembly, 21. Light-emitting unit, 211. Light source board, 2111. Light-emitting surface, 2112. Back side, 2113. Positioning hole, 2114. Adhesive, 2115. Light-emitting area, 212. LED lamp bead; 3. Drive power supply; Y, the axis of symmetry of the positioning hole; H, the centerline of the bend; a. The distance between the end of the bend and the nearest LED in the light-emitting area; b. The distance between the outer edge of the light source board and the nearest LED bead; c. The distance between adjacent light-emitting units. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used herein 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 be limiting of the invention.

[0032] Example 1: Please see Figures 1-4 This embodiment provides a light source mounting structure 100, including a lamp body 1 and a light source assembly 2. Specifically, the lamp body 1 includes a base 11 and a lampshade portion 12 extending from the base 11. The base 11 is provided with a mounting surface 111, and the mounting surface 111 is provided with a positioning post 1111 and a pressure plate 1112. The light source assembly 2 includes a plurality of separately arranged light-emitting units 21. Each light-emitting unit 21 includes a light source plate 211 and LED beads 212 that are attached and fixed to the light source plate 211. The light source plate 211 includes a light-emitting surface 2111 and a back surface 2112 that are arranged opposite to each other, and a positioning hole 2113 that penetrates the light-emitting surface 2111 and the back surface 2112. The back surface 2112 is coated with an adhesive 2114.

[0033] More specifically, the positioning post 1111 is inserted into the positioning hole 2113 and the positioning post 1111 does not protrude from the light-emitting surface 2111. The pressure plate 1112 is bent and pressed tightly against the light source plate 211. The light source assembly 2 is attached and fixed to the mounting surface 111 by the adhesive 2114.

[0034] In this embodiment, the lamp body 1 has a rotationally symmetrical structure, and the positioning posts 1111 and the pressure plate 1112 are both arrayed on the mounting surface 111 with the rotation axis of the lamp body 1 as the core. The adhesive 2114 can be pre-applied to the back surface 2112. The positioning posts 1111 are usually set on the mounting surface 111 by stamping the base 11, or fixed to the mounting surface 111 by welding. The pressure plate 1112 can be fixed to the mounting surface 111 by resistance welding or other methods.

[0035] During installation, the light-emitting unit 21, coated with adhesive 2114, is placed against the mounting surface 111 of the lamp body 1, with its back side 2112 facing each other. The positioning post 1111 is inserted into the positioning hole 2113, completing the positioning of the light source assembly 2. The positioning post 1111 is lower than the light-emitting surface 2111 to prevent poor light output, such as shadows on one side of the light-emitting surface 2111. The adhesive 2114 acts on the mounting surface 111 and the back side 2112, completing the initial fixation of the light source assembly 2 to the lamp body 1. Then, the pressure plate 1112, located on the mounting surface 111, is bent using equipment or tooling to press the pressure plate 1112 firmly against one side of the light-emitting surface 2111, thereby further reinforcing the light source assembly 2.

[0036] At this time, the pressure plate 1112 is generally pressed against the outer edge of the light source plate 211, forming a fixed state with the positioning post 1111 through an internal and external fit. Therefore, the number of pressure plates 1112 does not need to be too large to meet the fixing requirements. In this embodiment, only one pressure plate 1112 is needed for a single light source plate 211, which greatly simplifies the fixing structure.

[0037] With the above settings, under the premise of ensuring that the light source component 2 is securely and stably fixed and does not affect the light output effect, there is no need to open screw holes on the lamp body 1, which effectively avoids the possibility of water accumulation in the light source component 2 due to water seepage from the screw holes on the top of the lamp body 1, which could lead to a short circuit.

[0038] The simplified installation structure greatly simplifies the installation process of the light source component 2 compared to the screw and nut fixing method. This is especially true for larger canopy lights used in open-air stadiums, school playgrounds, etc. If the screw and nut installation method is used, the number of screws and nuts for the canopy light will increase many times over, affecting the installation efficiency of the light source component 2.

[0039] Furthermore, the adhesive 2114 can be a thermally conductive adhesive or other adhesive with heat dissipation function, or a high-temperature resistant adhesive or tape. The lampshade 12 is used to provide a larger heat dissipation area for the light source assembly 2. At the same time, the inner space of the lampshade 12 also concentrates the light emitted by the light source assembly 2, so as to ensure the brightness of the lighting area of ​​the ceiling light and other lamps.

[0040] In some embodiments, multiple LED beads 212 are arranged in an array on the light-emitting surface 2111 to form a light-emitting area 2115, and a positioning hole 2113 is disposed in the light-emitting area 2115. The positioning hole 2113 being disposed in the light-emitting area 2115 effectively increases the light-emitting area of ​​the light-emitting unit 21. Compared to placing the positioning hole 2113 on the edge of the light source board 211, this effectively avoids dark areas between adjacent light source boards 211, ensuring the overall light emission effect of the light source assembly 2.

[0041] In a further embodiment, the pressing sheet 1112 is located near the junction of the base 11 and the lampshade portion 12, allowing the surface area of ​​the light source plate 211 to be larger, thereby obtaining a larger light-emitting area 2115. The pressing sheet 1112 includes a fixing portion 1113 and a bending portion 1114. The fixing portion 1113 is fixed to the mounting surface 111, and the bending portion 1114 extends away from the mounting surface 111. By bending the end of the bending portion 1114 toward the light source plate 211 and pressing it against the outer edge of the light source plate 211, the light source assembly 2 is reinforced.

[0042] Furthermore, the distance between the end of the bent portion 1114 and the nearest LED bead 212 in the light-emitting area 2115 is 'a', and the distance between the nearest LED bead 212 and the outer edge of the light source board 211 is 'b', with the following relationship: 2mm ≤ a < b ≤ 5mm. As... Figure 4 As shown, the bending portion 1114 occupies a distance from the outer edge of the light source plate 211, which determines the final range of the light-emitting area 2115. If the bending portion 1114 occupies a large area, the light-emitting area 2115 will also decrease. When the light source assembly 2 emits light, a dark area may form at the location of the bending portion 1114, affecting the final light output effect. In addition, the area occupied by the bending portion 1114 and its effect on fixing the light source plate 211 exhibit diminishing marginal effects. According to simulation and experimental results, the bending portion 1114 needs to be at least 2mm thick to ensure its secure fixation. The LED bead 212 closest to the outer edge of the light source plate 211 needs to be no more than 5mm away from the outer edge of the light source plate 211 to avoid obvious edge dark areas during the operation of the ceiling light. Since the required clamping distance varies depending on the size and condition of the light source plate 211, the values ​​of a and b need to be determined based on the actual ceiling light situation, which will not be elaborated here.

[0043] In this embodiment, please continue to refer to Figures 1-4 To ensure optimal clamping effect of the pressure plate 1112, two positioning holes 2113 are symmetrically arranged in the light-emitting area 2115 near the edge of the light source plate 211, and the axis of symmetry of the two positioning holes 2113 coincides with the center line of the bending part 1114. The force-bearing points between the two positioning posts 1111 and the bending part 1114 form an isosceles triangle fixed layout, so that the fixing effect of the bending part 1114 with any positioning post 1111 is the same. While the light-emitting unit 21 obtains sufficient reinforcement, the number and layout of the pressure plate 1112 and the positioning posts 1111 are simplified, further improving the assembly efficiency of the ceiling light.

[0044] In summary, the light source mounting structure provided in this embodiment achieves positioning by inserting the positioning post into the positioning hole without protruding from the light-emitting surface. Then, the light source plate is pressed and tightened by bending the pressure plate, and the light source assembly is attached and fixed to the mounting surface with adhesive. This replaces the screw and nut installation scheme. Under the premise of ensuring a firm and stable fixation without affecting the light output effect, it avoids the risk of water leakage due to screw holes and significantly improves the overall waterproof performance.

[0045] Secondly, the light source mounting structure provided in this embodiment greatly simplifies the installation process of the light source components compared to the screw and nut fixing method, especially for larger ceiling lights and other lighting fixtures, thus improving assembly efficiency.

[0046] Example 2: Please Figures 1-4 Based on the above, refer to Figures 5-6 This embodiment provides a light source mounting structure 100, which is an adjustment and optimization based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that multiple light-emitting units 21 are arranged around the mounting surface 111, forming a roughly ring-shaped light-emitting body. The distance between adjacent light-emitting units 21 is c, where c satisfies: 2mm < c < 4mm. The ring-shaped light-emitting body provides more uniform heat dissipation, resulting in more consistent brightness across the illumination area and preventing localized over-brightness. Manufacturing the light source assembly 2 by dividing it into multiple light-emitting units 21 effectively reduces the manufacturing cost of the light source assembly 2 and minimizes waste of PCB circuit boards, especially for ceiling lights with large light source board 211 areas, where the saved PCB circuit board area is even greater. Furthermore, if a single light-emitting unit 21 fails, the entire light source assembly 2 does not need to be replaced. For ceiling lights used in public places and for long-term applications, this effectively reduces subsequent replacement and maintenance costs.

[0047] Sufficient distance is maintained between adjacent light-emitting units 21 to provide deformation space for the units at different temperatures. Similar to the case of the pressing sheet 1112 in Embodiment 1, excessive spacing between the light-emitting units 21 will result in dark areas. In simulations and experiments, when the distance c between adjacent light-emitting units 21 is between 2mm and 4mm, it can balance the light emission effect of the lamp with the problem of thermal deformation. In addition, the space between adjacent light-emitting units 21 can also be used for wiring, such as the power lines of the light-emitting units 21, the signal lines of sensors inside the lamp body, etc.

[0048] Furthermore, the positioning post 1111 has a columnar or conical structure. The columnar positioning post 1111 can accurately position and fix the positioning hole 2113, such as... Figure 6 As shown in Figure 6a. The conical positioning post 1111 is used when the light source board 211 is thicker and has a larger surface area, to facilitate faster positioning and installation of assembled components, such as... Figure 6 As shown in Figure 6b. Regardless of the shape of the positioning post 1111, the thickness of the positioning post 1111 should be less than the thickness of the light source plate 211 to avoid affecting the light output effect due to manufacturing errors of the lamp body 1 and the light source plate 211.

[0049] Furthermore, in this embodiment, the positioning post 1111 has a columnar structure, and in this case, the positioning post 1111 and the light source plate 211 are interference-fitted. Through the interference fit, the positioning post 1111 and the positioning hole 2113 further reinforce the light source plate 211. Conversely, the end of the bent portion 1114 can be bent smaller as needed, thereby increasing the area of ​​the light-emitting area 2115. However, it should be noted that the outer surface of the positioning post 1111 and the inner surface of the positioning hole 2113 should be made of materials with the same or similar coefficient of thermal expansion, such as the same solder material. This is to avoid the light source plate 211 cracking at the positioning hole 2113 position due to the temperature difference between the light source plate 211 and the base 11 when the light source assembly 2 is working.

[0050] Example 3: Please Figures 1-6 Based on the above, refer to Figures 7-8 This embodiment provides a ceiling light 200, which includes a driving power supply 3 and a light source mounting structure 100 mentioned in Embodiment 1 or Embodiment 2. In this embodiment, the base 11 is an annular structure, and the base 11 extends obliquely along its inner edge towards the light emission direction to form a heat dissipation part 13. The heat dissipation part 13 is provided with a mounting cavity 131, in which the driving power supply 3 is installed. The driving power supply 3 is electrically connected to the light emission unit 21. Due to the use of the light source mounting structure 100 in Embodiment 1 or Embodiment 2, the overall waterproof performance and service life of the ceiling light 200 are greatly improved, while its failure rate is also reduced. In the production stage, especially for large ceiling lights 200, the production cost of the ceiling light 200 provided in this embodiment is also reduced because the fixed assembly time of its light source component 2 and lamp body 1 is greatly reduced.

[0051] The heat dissipation section 13 formed inside the base 11 further provides a larger heat dissipation area for the light source assembly 2, which helps to reduce the operating temperature of the light source assembly 2. Secondly, the side of the heat dissipation section 13 facing the light source assembly 2, together with the lampshade section 12, forms the light-emitting structure of the ceiling light 200. For example... Figure 8 As shown, the light emitted by the LED lamp bead 212 is reflected on the lamp cover 12 and the heat dissipation part 13. The reflection of the heat dissipation part 13 can effectively enhance the brightness of the ceiling light 200 within its light output range and improve the brightness of the illuminated area. For the ceiling light 200 installed at high altitude, it has a longer illumination distance with the same light source component 2.

[0052] Furthermore, in this embodiment, the lamp body 1 can be integrally formed by processes such as stamping and spinning to create a single-piece structure from the base 11, the lampshade 12, and the heat dissipation part 13. The integrally formed lamp body 1 exhibits superior strength and consistency compared to welding or other splicing methods. Moreover, in mass production, the integrally formed lamp body 1 offers higher production efficiency and lower production costs compared to other production methods.

[0053] In summary, the ceiling light provided in this embodiment, due to the adoption of the aforementioned light source installation structure, significantly improves its overall waterproof performance and service life, reducing the failure rate. Furthermore, for large ceiling lights, the greatly reduced assembly time also lowers production costs.

[0054] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. A light source mounting structure, characterized in that, include: The lamp body includes a base and a lamp cover extending from the base, the base having a mounting surface, and the mounting surface having a positioning post and a pressure plate; as well as The light source assembly includes multiple light-emitting units arranged separately. Each light-emitting unit includes a light source plate and LED beads attached and fixed to the light source plate. The light source plate includes a light-emitting surface and a back surface arranged opposite to each other, and a positioning hole penetrating the light-emitting surface and the back surface. The back surface is coated with an adhesive. The positioning post is inserted into the positioning hole and does not protrude from the light-emitting surface; the pressure plate is bent and pressed against the light source plate; and the light source assembly is fixed to the mounting surface by adhesive.

2. The light source mounting structure according to claim 1, characterized in that, Multiple LED beads are arranged in an array on the light-emitting surface to form a light-emitting area, and the positioning hole is disposed in the light-emitting area.

3. The light source mounting structure according to claim 2, characterized in that, The pressure plate is located near the junction of the base and the lampshade portion. The pressure plate includes a fixing portion and a bending portion. The fixing portion is fixed to the mounting surface, and the bending portion extends away from the mounting surface. The end of the bending portion is bent toward the light source plate and pressed against the outer edge of the light source plate.

4. The light source mounting structure according to claim 3, characterized in that, The distance between the end of the bent portion and the nearest LED in the light-emitting area is 'a', and the distance between the nearest LED and the outer edge of the light source board is 'b', with the following relationship: 2mm ≤ a < b ≤ 5mm.

5. The light source mounting structure according to claim 3, characterized in that, The two positioning holes are symmetrically arranged in the light-emitting area near the edge of the light source plate, and the axis of symmetry of the positioning holes coincides with the center line of the bent portion.

6. The light source mounting structure according to claim 1, characterized in that, Multiple light-emitting units are arranged around the mounting surface to form a roughly ring-shaped light-emitting body. The distance between adjacent light-emitting units is c, and c satisfies: 2mm < c < 4mm.

7. The light source mounting structure according to claim 6, characterized in that, The positioning post has a columnar or conical structure, and the thickness of the positioning post is less than the thickness of the light source plate.

8. The light source mounting structure according to claim 7, characterized in that, When the positioning post is a columnar structure, the positioning post is interference-fitted with the light source plate.

9. A ceiling light, characterized in that, The device includes a driving power supply and a light source mounting structure as described in any one of claims 1-8, wherein the base is a ring-shaped structure, the base extends obliquely along its inner edge in the direction of light emission to form a heat dissipation part, the heat dissipation part is provided with a mounting cavity, the driving power supply is mounted in the mounting cavity, and the driving power supply is electrically connected to the light-emitting unit.

10. The ceiling light according to claim 9, characterized in that, The base, the lampshade, and the heat dissipation part are integrally formed.

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