A COB light source mounting base
By designing a COB light source mounting bracket, the problem of easy displacement of COB light sources is solved by using the cooperation of locking blocks and sliding grooves, realizing simple and efficient installation and stable fixation, thereby improving production efficiency and the reliability of the light source.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BEIXIN MICRO TECHNOLOGY CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-06-30
AI Technical Summary
Existing COB light source fixing methods are prone to light source displacement, resulting in shortened product lifespan, low production efficiency, and high defect rate.
A COB light source mounting bracket was designed, including a base, a fixing device, and a COB light source body. The COB light source is stably installed through the cooperation of a locking block and a sliding groove. The locking block slides and rotates in the sliding groove to lock into the locking cavity, and the spring rebound force is used to achieve fixation.
It simplifies the installation process, improves installation efficiency and reliability, reduces labor costs, ensures stable fixation of the light source, and reduces problems such as light source shaking and displacement caused by improper installation.
Smart Images

Figure CN224434277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of COB light source technology, specifically a COB light source mounting bracket. Background Technology
[0002] In the lighting field, COB light sources are widely used in a wide range of applications, from large lighting fixtures such as streetlights and tunnel lights to small lighting fixtures such as PAR lamps and MR16 spotlights, due to their advantages such as high brightness, small luminous area, high temperature resistance, and the ability to achieve higher brightness, smaller luminous angle, and longer product life. With the increasingly widespread application of COB light sources, the demand for their mounting bases is also constantly increasing. A stable, efficient, and easy-to-install mounting base is crucial for fully realizing the performance of COB light sources.
[0003] However, existing COB light source fixing methods have shortcomings. Traditional methods use metal heat sinks with raised limiting ribs or recessed square grooves on the COB light source bonding surface to center or fix the COB light source in the required position. However, during subsequent assembly processes, the COB light source is very easy to shift. After shifting, it will be suspended on the raised limiting ribs or the edge steps of the recessed square groove. This not only shortens the product life, but may even burn out the lamp in a short time. Moreover, the production efficiency is low and the defect rate is difficult to avoid. To address this, we propose a COB light source fixing bracket. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a COB light source holder that solves the aforementioned problems.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a COB light source holder, comprising:
[0006] The device comprises a base, a fixing device, and a COB light source body. The fixing device is installed inside the base, and the bottom of the fixing device is connected to the base by an adapter screw. The COB light source body is installed inside the top of the base. The outer side of the bottom of the COB light source body slides and engages with the inner wall of the base, and the side wall of the COB light source body engages and snaps with the fixing device.
[0007] Preferably, the COB light source body has an overall cylindrical structure, four card blocks arranged in a ring array are provided on the bottom side wall of the COB light source body, and two electrical connection pins are provided on the bottom of the COB light source body in an axisymmetrical arrangement.
[0008] Preferably, the base has an installation cylinder at the top and four connecting holes arranged in a ring array on the bottom side wall of the base, and four connecting holes arranged in a ring array on the bottom end face of the base, with the connecting holes arranged in a ring and the connecting holes arranged in a ring and intersecting.
[0009] Preferably, the cylindrical sidewall of the mounting cylinder has four sliding grooves arranged in a ring array, and the sliding grooves are vertically arranged with open tops. The inner wall of the sliding groove has a locking cavity, and the locking block slides and engages with the sliding groove. The bottom center of the mounting cylinder has a mating platform, and the top of the mating platform has two symmetrically distributed insertion holes, which are connected to the electrical connection pins.
[0010] Preferably, the fixing device includes a connector and a clamping member. The main body of the fixing device is the connector, and the connector is provided with a clamping member inside. The clamping member is slidably connected to the inside of the connector.
[0011] Preferably, the bottom and top of the connector are both circular ring plate structures, the connector is placed on the outside of the mounting cylinder, and the connector has four guide posts arranged in a circular array inside. A connection hole three is opened between two adjacent guide posts on the bottom circular ring plate of the connector, and the connection hole three is connected to the connection hole two by an adapter screw.
[0012] Preferably, the top of the clamping member is a lifting plate, and the inner wall of the lifting plate is provided with four sliders arranged in a circular array. The sliders are slidably connected to the sliding groove, and the side wall of the sliders is in contact with the side wall of the clamping block. The bottom of the lifting plate is provided with four guide cylinders arranged in a circular array. The guide cylinders are slidably connected to the guide posts. The bottom of the lifting plate is provided with a spring, the bottom end of which is connected to the bottom ring plate of the connector, and the spring is positioned between the slider group and the guide cylinder group.
[0013] Compared with the prior art, this utility model provides a COB light source holder, which has the following advantages:
[0014] The COB light source mounting bracket offers a simple installation process for the COB light source itself. Installers simply align the locking block on the bottom of the COB light source with the sliding groove, press it down, and then rotate the COB light source to engage the locking block in the cavity. This completes the installation without the need for complex tools or cumbersome procedures, significantly saving installation time and improving efficiency. Furthermore, the tight and precise fit of all components during installation ensures the COB light source is stably fixed to the base, reducing issues such as light source wobbling and displacement caused by improper installation, thus effectively improving installation reliability. This installation method also requires relatively low technical skills from installers, reducing labor costs and facilitating large-scale production and installation operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the COB light source mounting base structure of this utility model;
[0016] Figure 2This is a cross-sectional schematic diagram of the COB light source mounting base of this utility model;
[0017] Figure 3 This is a schematic diagram of the base of this utility model;
[0018] Figure 4 This is a cross-sectional view of the fixing device of this utility model.
[0019] In the diagram: 1. Base; 2. Fixing device; 3. COB light source body; 4. Locking block; 5. Electrical connection pin; 6. Mounting cylinder; 7. Connection hole one; 8. Connection hole two; 9. Slide groove; 10. Locking cavity; 11. Mating platform; 12. Insertion hole; 13. Connector; 14. Clamping component; 15. Guide post; 16. Connection hole three; 17. Lifting plate; 18. Slider; 19. Guide cylinder; 20. Spring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 This utility model provides a technical solution;
[0022] A COB light source holder, comprising:
[0023] The base 1, the fixing device 2, and the COB light source body 3 are provided. The fixing device 2 is installed inside the base 1. The bottom of the fixing device 2 is connected to the base 1 by an adapter screw. The COB light source body 3 is installed inside the top of the base 1. The bottom outer side of the COB light source body 3 is slidably engaged with the inner wall of the base 1, and the side wall of the COB light source body 3 is engaged with the fixing device 2.
[0024] Furthermore, the COB light source body 3 has an overall cylindrical structure. The bottom side wall of the COB light source body 3 is provided with four locking blocks 4 arranged in a ring array, and the bottom of the COB light source body 3 is provided with two electrical connection pins 5 arranged in an axisymmetric manner. The locking blocks 4, together with the base 1 and the fixing device 2, play a role in locking and fixing.
[0025] Furthermore, the base 1 has a mounting cylinder 6 on its top, and four connecting holes 7 arranged in a ring array on the bottom side wall of the base 1. Four connecting holes 8 arranged in a ring array are also provided on the bottom end face of the base 1. The connecting holes 7 and 8 are arranged in a ring-shaped cross pattern. The connecting holes 7 can be effectively connected to the designated installation position of the equipment by means of an adapter screw.
[0026] Furthermore, the cylindrical sidewall of the mounting cylinder 6 has four sliding grooves 9 arranged in a ring array, and the sliding grooves 9 are vertically positioned with open tops. The inner wall of the sliding grooves 9 has a retaining cavity 10, and the retaining block 4 slides and engages with the sliding grooves 9 and the retaining cavity 10. The bottom center of the mounting cylinder 6 has a mating platform 11, and the top of the mating platform 11 has two symmetrically distributed insertion holes 12, which are connected to the electrical connection pins 5. The dimensions of the sliding grooves 9, retaining cavities 10 and retaining blocks 4 are matched, so the retaining block 4 can slide inside the sliding grooves 9 and can be rotated into the retaining cavity 10.
[0027] Furthermore, the fixing device 2 includes a connector 13 and a clamping member 14. The main body of the fixing device 2 is the connector 13, and the clamping member 14 is provided inside the connector 13. The clamping member 14 is slidably connected to the inside of the connector 13. When fixing the COB light source body 3, the four locking blocks 4 on the bottom side wall of the COB light source body 3 are aligned with the top openings of the four slide grooves 9. At this time, the COB light source body 3 is controlled to press down along the slide grooves 9, so that the locking blocks 4 slide vertically inside the slide grooves 9 and apply downward force to the slider 18 inside the slide grooves 9, driving the spring 20 to compress downward, so that the slider 18 and the locking blocks 4 slide downward together, and the electrical connection pin 5 is inserted into the socket 12. When it slides to the appropriate position, the COB light source body 3 is rotated, so that the locking blocks 4 rotate and lock into the locking cavity 10. At this time, no external force is applied to the top of the slider 18, so that the slider 18 is reset under the action of the spring 20. At this time, the side wall of the reset slider 18 cooperates with the locking cavity 10 to fix the locking blocks 4, thus completing the fixing and installation of the COB light source body 3.
[0028] Furthermore, the bottom and top of the connector 13 are both circular ring plate structures. The connector 13 is positioned on the outside of the mounting cylinder 6, and the connector 13 has four guide posts 15 arranged in a circular array inside. A connecting hole 3 16 is opened between two adjacent guide posts 15 on the bottom circular ring plate of the connector 13. The connecting hole 3 16 is connected to the connecting hole 2 8 by an adapter screw. The connector 13 plays a limiting and supporting role for the clamping part 14. The sliding connection between the guide post 15 and the guide cylinder 19 effectively ensures the smoothness of the lifting plate 17's lifting and sliding.
[0029] Furthermore, the top of the clamping component 14 is a lifting plate 17, and the inner wall of the lifting plate 17 is provided with four sliders 18 arranged in a circular array. The sliders 18 are slidably connected to the slide groove 9, and the side wall of the sliders 18 is in contact with the side wall of the clamping block 4. The bottom of the lifting plate 17 is provided with four guide cylinders 19 arranged in a circular array. The guide cylinders 19 are slidably connected to the guide post 15. The bottom of the lifting plate 17 is provided with a spring 20. The bottom end of the spring 20 is connected to the bottom ring plate of the connector 13, and the spring 20 is positioned between the slider group 18 and the guide cylinder group 19. The spring 20 is always in a compressed state, and its rebound force ensures the stability of the clamping and fixing of the COB light source body 3.
[0030] Structural Description:
[0031] Base 1: This is the basic structure of the COB light source mounting base. It has a fixing device 2 inside, a COB light source body 3 inside the top, and connection hole 7 and connection hole 8 at the bottom for connecting and fixing to the equipment.
[0032] Fixing device 2: includes connector 13 and clamping member 14. The bottom is connected to base 1 by screws and can be engaged with the side wall of COB light source body 3 to fix it.
[0033] COB light source body 3: It is cylindrical in shape, with four locking blocks 4 on the bottom side wall, two electrical connection pins 5 on the bottom, and the bottom outer side slidingly engages with the inner wall of the base 1. It is the core component for light emission.
[0034] Card block 4: Located on the bottom side wall of COB light source body 3, it is arranged in a ring array and can slide and rotate in the slide groove 9 to be inserted into the card cavity 10. It works with the base 1 and the fixing device 2 to clamp and fix it.
[0035] Electrical connection pin 5: It is symmetrically distributed at the bottom of the COB light source body 3 and can be inserted into the socket 12 of the mating platform 11 to realize the electrical connection between the COB light source body 3 and the outside.
[0036] Mounting cylinder 6: Located at the top of base 1, with four sliding grooves 9 on the side wall and a retaining cavity 10 on the inner wall, and a mating platform 11 at the bottom center of the interior, providing installation space and guidance for COB light source body 3;
[0037] Connection hole 1 7: It is opened on the bottom side wall of the base 1 and is distributed in a ring array. It intersects with connection hole 2 8 in a ring. The base 1 can be connected to the designated position of the equipment by the adapter screw.
[0038] Connection hole 2 8: It is arranged in a ring array on the bottom end face of the base 1, and intersects with connection hole 1 7 in a ring. It can be fixed by screws and connection hole 3 16 of connector 13.
[0039] Slide 9: It is arranged in a ring array on the cylindrical side wall of the mounting cylinder 6, with an open top and vertical placement, for the sliding of the locking block 4 and the slider 18, providing guidance for the installation of the COB light source body 3;
[0040] Cavity 10: It is formed on the inner wall of the slide groove 9 and matches the size of the locking block 4. After the locking block 4 is rotated and locked in, it can be fixed with the slider 18.
[0041] Matching platform 11: Inside the mounting cylinder 6, at the bottom center, there are two insertion holes 12 at the top, which are used to place the bottom of the COB light source body 3 and provide insertion positions for the electrical connection pins 5;
[0042] Socket 12: It is symmetrically distributed on the top of the mating platform 11 and is plugged into the electrical connection pin 5 to ensure the electrical connection stability of the COB light source body 3.
[0043] Connector 13: The main body is a structure with circular plates on both the top and bottom. It is placed on the outside of the mounting cylinder 6. Inside, there is a guide post 15 and a connecting hole 16 at the bottom. It serves to limit and support the clamping part 14.
[0044] Clamping component 14: The top is a lifting plate 17, with a slider guide cylinder 19 and a spring 20, which slides in cooperation with the connecting component 13 and can cooperate with the clamping cavity 10 to fix the clamping block 4;
[0045] Guide columns 15: They are arranged in a ring array inside the connector 13 and slide in conjunction with the guide cylinder 19 to ensure the smoothness of the lifting plate 17's lifting and sliding.
[0046] Connection hole 3 16: Between the bottom annular plate of the connector 13 and the adjacent guide post 15, the connector 13 is connected to the base 1 by screws and connection hole 2 8.
[0047] Lifting plate 17: It is the top structure of the clamping part 14. The inner wall has a slider 18, and the bottom has a guide cylinder 19 and a spring 20. It can slide up and down as the slider 18 is subjected to force.
[0048] Slider 18: It is arranged in a ring array on the inner wall of the lifting plate 17 and slides in conjunction with the slide groove 9. Its side wall fits against the card block 4 and can cooperate with the card cavity 10 to fix the card block 4.
[0049] Guide cylinder 19: It is arranged in a ring array at the bottom of the lifting plate 17 and slides with the guide column 15 to help ensure the smoothness of the sliding of the lifting plate 17;
[0050] Spring 20: Located at the bottom of the lifting plate 17, between the slider group 18 and the guide cylinder group 19, and connected to the connector 13 at the bottom, it is always compressed and the rebound force ensures stable locking.
[0051] Working Principle: Install the COB light source mounting bracket correctly according to the diagram. First, connect the base 1 to the designated installation position on the equipment via the connecting hole 7 and the appropriate screws to complete the installation of the base 1. Then, install the COB light source body 3. Align the four locking blocks 4 on the bottom sidewall of the COB light source body 3 with the four circularly arranged, open-topped sliding grooves 9 on the cylindrical sidewall of the mounting cylinder 6 at the top of the base 1. Next, control the COB light source body 3 to press down along the sliding grooves 9. During this process, the locking blocks 4 slide vertically inside the sliding grooves 9, simultaneously applying a downward force to the slider 18 inside the sliding grooves 9. The slider 18 drives the spring 20 at its bottom to compress downwards, causing the slider 18 and locking blocks 4 to slide downwards together. The electrical connection pin 5 at the bottom of the COB light source body 3 is then inserted into the insertion hole 12 at the top of the mating platform 11 at the bottom end of the mounting cylinder 6. After sliding to the appropriate position, rotate the COB light source body 3 so that the locking block 4 rotates and engages with the locking cavity 10 opened in the inner wall of the slide groove 9. At this time, no external force is applied to the top of the slider 18, and it resets under the action of the spring 20. The reset slider 18 side wall cooperates with the locking cavity 10 to fix the locking block 4, thereby completing the fixed installation of the COB light source body 3. In the fixing device 2, the bottom and top of the connector 13 are both circular ring plate structures, which are placed on the outside of the mounting cylinder 6 to limit and support the clamping member 14. The guide cylinder 19 of the clamping member 14 is slidably connected to the guide post 15, and a spring 20 is provided at the bottom. The bottom end of the spring 20 is connected to the bottom circular ring plate of the connector 13 and is always in a compressed state. Its rebound force ensures the stability of the locking and fixing of the COB light source body 3. The sliding connection between the guide post 15 and the guide cylinder 19 also effectively ensures the smoothness of the lifting plate 17's lifting and sliding.
[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A COB light source holder, characterized in that, include: The base (1), the fixing device (2) and the COB light source body (3) are provided. The fixing device (2) is provided inside the base (1). The bottom of the fixing device (2) is connected to the base (1) by an adapter screw. The top of the base (1) is provided with the COB light source body (3). The bottom outer side of the COB light source body (3) is slidably engaged with the inner wall of the base (1), and the side wall of the COB light source body (3) is engaged with the fixing device (2).
2. The COB light source fixing seat according to claim 1, characterized in that, The COB light source body (3) has a cylindrical structure. The bottom side wall of the COB light source body (3) is provided with four card blocks (4) arranged in a ring array, and the bottom of the COB light source body (3) is provided with two electrical connection pins (5) arranged in an axisymmetric distribution.
3. The COB light source fixing seat according to claim 1, characterized in that, The base (1) has an installation cylinder (6) on its top, and four connecting holes (7) arranged in a ring array are opened on the bottom side wall of the base (1). Four connecting holes (8) arranged in a ring array are opened on the bottom end face of the base (1), and the connecting holes (7) and the connecting holes (8) are arranged in a ring-shaped cross distribution.
4. The COB light source fixing seat according to claim 3, characterized in that, The cylindrical sidewall of the mounting cylinder (6) has four sliding grooves (9) arranged in a ring array, and the sliding grooves (9) are vertically arranged with the top open. The inner wall of the sliding grooves (9) has a locking cavity (10), and the locking block (4) slides and engages with the sliding grooves (9) and the locking block (4) engages with the locking cavity (10). The bottom center of the mounting cylinder (6) has a mating platform (11), and the top of the mating platform (11) has two axially symmetrical insertion holes (12), which are connected to the electrical connection pins (5).
5. The COB light source fixing seat according to claim 1, characterized in that, The fixing device (2) includes a connector (13) and a clamping member (14). The main body of the fixing device (2) is the connector (13). The clamping member (14) is provided inside the connector (13). The clamping member (14) is slidably connected to the inside of the connector (13).
6. The COB light source fixing seat according to claim 5, characterized in that, The bottom and top of the connector (13) are both circular ring plate structures. The connector (13) is placed on the outside of the mounting cylinder (6). The connector (13) has four guide posts (15) arranged in a circular array inside. A connection hole three (16) is opened between two adjacent guide posts (15) on the bottom circular ring plate of the connector (13). The connection hole three (16) is connected to the connection hole two (8) by an adapter screw.
7. The COB light source fixing seat according to claim 5, characterized in that, The top of the clamping member (14) is a lifting plate (17), and the inner wall of the lifting plate (17) is provided with four sliders (18) arranged in a ring array. The sliders (18) are slidably connected to the slide groove (9), and the side wall of the sliders (18) is in contact with the side wall of the clamping block (4). The bottom of the lifting plate (17) is provided with four guide cylinders (19) arranged in a ring array. The guide cylinders (19) are slidably connected to the guide column (15). The bottom of the lifting plate (17) is provided with a spring (20). The bottom end of the spring (20) is connected to the bottom ring plate of the connector (13), and the spring (20) is placed between the slider (18) group and the guide cylinder (19) group.