LED ceramic light source with compact structure

Abstract

The utility model discloses an LED (light-emitting diode) ceramic light source with a compact structure. The LED ceramic light source comprises a base, and a power supply module, an LED light-emitting plate, a lens assembly and a light-transmitting cover which are arranged on the base, the LED light-emitting plate comprises a ceramic substrate and a plurality of LED lamp beads which are evenly distributed on the ceramic substrate at intervals in an array mode or a radial mode. The light-transmitting cover is coaxially installed on the upper end face of the ceramic substrate through a fastener. An annular leakage-proof groove is formed in the peripheral edge of the upper end face of the ceramic substrate, a sealing convex ring matched with the leakage-proof groove is arranged on the end face of the bottom of the light-transmitting cover, and the sealing convex ring extends into the leakage-proof groove in a matched mode and is limited; the LED lamp beads are directly integrated on the ceramic substrate in a welding mode and the like, the structure is simplified, the thin design of the light source structure is achieved, the annular leakage-proof groove is formed in the upper end of the ceramic substrate, and the groove is precisely matched with the sealing convex ring at the bottom of the light-transmitting cover to form an effective sealing device. And the problem of light leakage caused by gaps or assembly errors is prevented.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to a compact LED ceramic light source. Background Technology

[0002] GX53 is a common LED light source used in cabinet lighting, furniture lighting, display case lighting, and ceiling lights. Its installation is relatively simple, meeting requirements for energy saving, high brightness, and aesthetic appeal. It typically includes a housing, lamp holder, LED light-emitting module, driver circuit, auxiliary heat dissipation components, and a light-transmitting cover.

[0003] However, existing GX53 luminaires also have some shortcomings in practical applications. First, gaps or inadequate sealing during the assembly of the lamp body and the light-transmitting cover can easily lead to light leakage from the sides or bottom. This not only disrupts the originally designed uniform light distribution but also affects the overall aesthetics of the product. Second, traditional LED light boards mostly use MCPCBs, whose insulation layer is usually thin. Furthermore, due to the insufficient continuity of the heat dissipation path design, the heat generated by the LEDs is difficult to conduct quickly and evenly to the heat dissipation system. Therefore, additional heat sinks or metal casings are often required to compensate for insufficient heat dissipation, which not only complicates the structure but also increases production costs and assembly difficulty.

[0004] Therefore, further research and development is necessary to address the problems existing in the aforementioned technologies. Utility Model Content

[0005] Therefore, in order to solve the problems existing in the prior art, the purpose of this utility model is to provide a compact LED ceramic light source.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A compact LED ceramic light source includes a base and a power module, an LED light-emitting board, a lens assembly, and a light-transmitting cover mounted on the base. The base has a mounting cavity in the middle for mounting the power module, which is located in the mounting cavity and used to connect to power. The LED light-emitting board includes a ceramic substrate and multiple LED beads evenly spaced in an array or radial pattern on the ceramic substrate. The lens assembly is mounted between the ceramic substrate and the light-transmitting cover, with a gap between it and the LED beads. The light-transmitting cover is coaxially mounted on the upper surface of the ceramic substrate by fasteners and has a light-transmitting hole. An annular leak-proof groove is provided on the outer periphery of the upper surface of the ceramic substrate, and a sealing protrusion adapted to the leak-proof groove is provided on the bottom surface of the light-transmitting cover. The sealing protrusion extends into the leak-proof groove and is limited in position.

[0008] Furthermore, the sealing convex rings are spaced apart on the inner side of the bottom end face edge of the light-transmitting cover, and their vertical cross-sectional shape is arc-shaped.

[0009] Furthermore, an annular sealing step is provided between the sealing convex ring and the bottom end face edge of the light-transmitting cover, and the sealing step abuts against the outside of the leak-proof groove of the ceramic substrate.

[0010] Furthermore, the outer peripheral sidewall of the ceramic substrate is provided with a plurality of heat dissipation grooves at intervals; a plurality of LED beads are welded and fixed on the ceramic substrate, and are distributed in a ring at intervals at the center of the ceramic substrate.

[0011] Furthermore, the ceramic substrate and the light-transmitting cover are respectively provided with mounting holes in the circumference, and the fasteners are simultaneously inserted into the mounting holes to lock the light-transmitting cover to the upper end face of the ceramic substrate.

[0012] Furthermore, the power module is installed in the middle of the base via a power socket, and the power socket forms the mounting cavity inside; the power socket is provided with a plurality of elastic buckles, and the ceramic substrate is provided with buckle grooves that are connected to the elastic buckles at intervals from the mounting holes; the power socket is installed under the ceramic substrate by the engagement of the elastic buckles with the buckle grooves.

[0013] Furthermore, the power socket includes a mounting cavity for placing a power module and a mounting platform extending outward relative to the mounting cavity, wherein the elastic buckle is integrally formed on the outer peripheral edge of the mounting platform.

[0014] Furthermore, the lens assembly includes a lens and a diffuser plate sequentially disposed inside the light-transmitting cover; the outer peripheral edge of the diffuser plate is pressed and fastened to the inside of the light-transmitting cover by fastening screws.

[0015] Furthermore, the diffusion plate is an acrylic diffusion plate.

[0016] Furthermore, the base is provided with a metal conductive spring, and the power module is electrically connected to an external power source through the metal conductive spring; the outer periphery of the base is provided with a wiring port for connecting to an external power wire.

[0017] Furthermore, the base is provided with a limiting cover, the inner wall of the limiting cover is provided with an elastic buckle, and the base is provided with a buckle groove that matches the elastic buckle; the inner wall of the limiting cover is provided with a connector that connects to the power socket, and the outer wall of the power socket is provided with a rotating groove that matches the connector, and the rotating groove is provided with an opening that allows the connector to enter.

[0018] Compared with the prior art, the beneficial effects of this utility model are at least in the following aspects:

[0019] 1. This utility model improves the structure of the LED light source by directly integrating LED beads onto a ceramic substrate through welding or other methods. This eliminates the need for an additional heat sink in traditional designs, simplifies the structure, and enables a thinner design of the light source structure, thereby improving the compactness and reliability of the overall device. In addition, the ceramic substrate not only utilizes its high thermal conductivity to quickly conduct away the heat generated by the LED, but its electrical insulation performance is also significantly better than that of traditional metal substrates, thus effectively avoiding safety hazards caused by electrical short circuits or leakage.

[0020] 2. This utility model features an annular anti-leakage groove on the upper end of the ceramic substrate. This groove precisely matches the sealing protrusion at the bottom of the light-transmitting cover, forming an effective sealing device to prevent light leakage from the sides and bottom due to assembly gaps or inadequate sealing. Furthermore, the anti-leakage groove is located on the outer periphery of the ceramic substrate to form a preliminary light isolation channel. The bottom of the light-transmitting cover has a sealing protrusion with an optimized shape that can be evenly embedded in the anti-leakage groove, ensuring a tight contact between the two and effectively blocking light leakage from the joint surface. In addition, an annular sealing step is provided between the light-transmitting cover and the ceramic substrate. This sealing step, together with the anti-leakage groove and the sealing protrusion, forms a continuous sealing interface, further enhancing the sealing effect of the entire assembly area and preventing light leakage due to gaps or assembly errors. It also improves the overall structural stability and durability.

[0021] 3. This utility model employs a precision assembly structure, integrating the base, ceramic substrate, and light-transmitting cover into a single unit using fasteners, power supply sockets, elastic clips, and locking slots. The power module mounted on the base is connected to an external power source via a metal conductive spring and is securely fixed to the ceramic substrate by the power supply socket, ensuring the stability of the electrical connection. Simultaneously, the entire assembly system forms a stable and compact mechanical whole, effectively preventing loosening of components due to vibration or temperature changes. This ensures high brightness output while extending the lifespan of the LED light source and enhancing the overall stability of the system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a compact LED ceramic light source according to a preferred embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional view of the overall structure of the compact LED ceramic light source according to a preferred embodiment of the present invention.

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of a local structure at point A;

[0025] Figure 4This is an exploded view of the overall structure of the compact LED ceramic light source according to a preferred embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the assembly state of the base, power socket, and power module of the compact LED ceramic light source, which is a preferred embodiment of this utility model.

[0027] In the picture:

[0028] 1. Base; 11. Mounting cavity; 12. Power supply socket; 121. Mounting platform; 122. Thrust groove; 13. Elastic buckle; 14. Cable routing port; 15. Limiting cover; 16. Connector; 2. Power module; 3. LED light-emitting board; 31. Ceramic substrate; 311. Leak-proof groove; 312. Heat dissipation groove; 313. Buckle groove; 32. LED lamp bead; 4. Lens assembly; 41. Lens; 42. Diffuser plate; 5. Light-transmitting cover; 51. Sealing protrusion ring; 52. Sealing step; 6. Fastener; 7. Metal conductive spring. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings and 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.

[0030] like Figure 1-5 As shown, this utility model provides a compact LED ceramic light source, including a base 1 and a power module 2, an LED light-emitting board 3, a lens assembly 4, and a light-transmitting cover 5 disposed on the base 1; the base 1 has a mounting cavity 11 in the middle for mounting the power module 2, the power module 2 is located in the mounting cavity 11 and is used to connect the power supply; the LED light-emitting board 3 includes a ceramic substrate 31 and a plurality of LED beads 32 evenly spaced in an array or radial pattern on the ceramic substrate 31; the lens assembly 4 is installed between the ceramic substrate 31 and the light-transmitting cover 5, and is spaced apart from the LED beads 32; the light-transmitting cover 5 is coaxially mounted on the upper end face of the ceramic substrate 31 by fasteners 6, and has a light-transmitting hole; the outer peripheral edge of the upper end face of the ceramic substrate 31 is provided with an annular anti-leakage groove 311, and the bottom end face of the light-transmitting cover 5 is provided with a sealing protrusion 51 adapted to the anti-leakage groove 311, the sealing protrusion 51 extending into the anti-leakage groove 311 and being limited.

[0031] Specifically, the base 1 is provided with a metal conductive spring 7, and the power module 2 forms an electrical connection with an external power source through the metal conductive spring 7; the outer periphery of the base 1 is provided with a wiring port 14 for connecting to an external power cord. In this embodiment, the main function of the metal conductive spring on the base is to achieve electrical contact, connect the external power source to the power module inside the lamp, and ensure a stable power supply.

[0032] As a further preferred embodiment, the sealing protrusions 51 are spaced apart on the inner side of the bottom end face edge of the light-transmitting cover 5, and their vertical cross-sectional shape is arc-shaped. Further refined, an annular sealing step 52 is provided between the sealing protrusions 51 and the bottom end face edge of the light-transmitting cover 5, and the sealing step 52 abuts against and covers the outer side of the leak-proof groove 311 of the ceramic substrate 31.

[0033] This invention features an annular anti-leakage groove on the upper end of a ceramic substrate. This groove precisely engages with a sealing protrusion at the bottom of the light-transmitting cover, forming an effective sealing device to prevent light leakage from the sides and bottom due to assembly gaps or inadequate sealing. Furthermore, the anti-leakage groove is located on the outer periphery of the ceramic substrate, forming a preliminary light isolation channel. The bottom of the light-transmitting cover has a sealing protrusion with an optimized shape that can be evenly embedded within the anti-leakage groove, ensuring tight contact between the two and effectively blocking light leakage from the joint surface. In addition, an annular sealing step is provided between the light-transmitting cover and the ceramic substrate. This sealing step, together with the anti-leakage groove and the sealing protrusion, forms a continuous sealing interface, further enhancing the sealing effect of the entire assembly area and preventing light leakage due to gaps or assembly errors. It also improves the overall structural stability and durability.

[0034] As a further preferred embodiment, the outer peripheral sidewall of the ceramic substrate 31 is provided with a plurality of heat dissipation grooves 312 spaced apart; a plurality of LED beads 32 are welded and fixed on the ceramic substrate 31, and are arranged in a ring at the center of the ceramic substrate 31. In this embodiment, the LED beads are typically welded onto the ceramic substrate using a high-temperature reflow soldering process, whereby the LED chips are soldered onto pre-printed metal electrodes on the ceramic substrate. After soldering, the metal electrodes are connected to the driving circuit in the circuit through pre-designed printed lines or conductive adhesive, thereby enabling power-on operation.

[0035] As a further preferred embodiment, the ceramic substrate 31 and the light-transmitting cover 5 are respectively provided with mounting holes (not shown in the figure), and the fastener 6 is inserted into the mounting holes to lock the light-transmitting cover 5 to the upper surface of the ceramic substrate 31.

[0036] As a further preferred embodiment, the power module 2 is mounted in the middle of the base 1 via a power socket, the power socket forming the mounting cavity 11. The power socket is provided with several elastic buckles 13, and the ceramic substrate 31 has slots 313 spaced apart from the mounting holes and connected to the elastic buckles 13. The power socket is mounted below the ceramic substrate 31 through the engagement of the elastic buckles 13 with the slots 313. In this embodiment, the elastic buckles integrated on the power socket and the pre-set slots on the ceramic substrate achieve quick and secure installation through the engagement action, reducing installation time and avoiding errors and loosening that may occur with traditional screw fixing methods. Furthermore, the one-piece molded elastic buckle design of the mounting platform not only ensures precise docking between the power module and the ceramic substrate but also improves the overall shock resistance and durability of the structure.

[0037] As a further preferred embodiment, the power socket 12 includes a mounting cavity 11 for placing the power module 2 and a mounting platform 121 extending outward relative to the mounting cavity 11. The mounting platform 121 has the elastic buckle 13 integrally formed on its outer peripheral edge. In this embodiment, the power socket 12 design, with the mounting platform 121 extending outward and integrally formed with the elastic buckle 13, has the advantage of connecting the upper and lower components. On the one hand, the mounting platform 121 provides a stable placement position for the power module, while the integrally formed structure ensures precise positioning between the socket and the base; on the other hand, the elastic buckle 13 allows the power socket to form a tight snap-fit ​​with the groove under the ceramic substrate, thereby ensuring a stable connection between the power module and the upper light-emitting components.

[0038] As a further preferred embodiment, the lens assembly 4 includes a lens 41 and a diffuser plate 42 sequentially disposed inside the light-transmitting cover 5; the outer peripheral edge of the diffuser plate 42 is pressed and fastened to the inner side of the light-transmitting cover 5 by fastening screws. Specifically, the diffuser plate 42 is an acrylic diffuser plate 42. The combination of the lens and the diffuser plate can better and more evenly disperse the light emitted by the LED light source, reduce the problem of excessively high local brightness, and improve lighting uniformity and visual comfort.

[0039] As a further preferred embodiment, the base 1 is provided with a limiting cover 15, the inner wall of the limiting cover 15 is provided with an elastic buckle 13, and the base 1 is provided with a buckle groove adapted to the elastic buckle; the inner wall of the limiting cover 15 is provided with a connector 16 connected to the power socket 12, and the outer wall of the power socket 12 is provided with a screw groove 122 adapted to the connector, and the screw groove 122 is provided with an opening for the connector 16 to enter.

[0040] In this embodiment, the power supply socket is first securely installed on the ceramic substrate using its own elastic buckle, achieving direct connection with the ceramic substrate. Subsequently, the connector 16 provided on the inner wall of the limiting cover 15 on the base 1 is adapted to the screw groove 122 on the outer wall of the power supply socket 12 (which has an opening for the connector to enter) and screwed together. The power supply socket, as an intermediate connector, not only achieves stable fixation with the ceramic substrate, but also facilitates mechanical locking with the upper cover of the base 1, thereby ensuring the assembly accuracy and stability of the entire system.

[0041] This invention employs a precision assembly structure, integrating the base, ceramic substrate, and light-transmitting cover into a single unit using fasteners, power supply brackets, elastic clips, and locking slots. The power module on the base is connected to an external power source via a metal conductive spring and is securely fixed to the ceramic substrate by the power supply bracket and locking slots below, ensuring stable electrical connections. Simultaneously, the entire assembly system forms a stable and compact mechanical whole, effectively preventing loosening of components due to vibration or temperature changes. This ensures high brightness output while extending the lifespan of the LED light source and enhancing the overall stability of the system.

[0042] The above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A compact LED ceramic light source, characterized by The device includes a base and a power module, an LED light-emitting board, a lens assembly, and a light-transmitting cover mounted on the base. The base has a mounting cavity in the center for mounting the power module, which is located within the cavity and used to connect to the power supply. The LED light-emitting board includes a ceramic substrate and multiple LED beads evenly spaced in an array or radial pattern on the ceramic substrate. The lens assembly is mounted between the ceramic substrate and the light-transmitting cover, with a gap between it and the LED beads. The light-transmitting cover is coaxially mounted on the upper surface of the ceramic substrate using fasteners. An annular leak-proof groove is provided on the outer periphery of the upper surface of the ceramic substrate, and a sealing protrusion adapted to the leak-proof groove is provided on the bottom surface of the light-transmitting cover. The sealing protrusion extends into the leak-proof groove and is limited in position.

2. A compact LED ceramic light source as claimed in claim 1, characterized in that The sealing convex rings are spaced apart and located on the inner side of the bottom end face edge of the light-transmitting cover, and their vertical cross-sectional shape is arc-shaped.

3. A compact LED ceramic light source as claimed in claim 2, characterized in that An annular sealing step is provided between the sealing convex ring and the bottom end face edge of the light-transmitting cover, and the sealing step abuts against the outside of the leak-proof groove of the ceramic substrate.

4. A compact LED ceramic light source as claimed in claim 3, characterized in that The outer peripheral sidewall of the ceramic substrate is provided with multiple heat dissipation grooves at intervals; multiple LED beads are welded and fixed on the ceramic substrate, and are distributed in a ring at intervals at the center of the ceramic substrate.

5. A compact LED ceramic light source as claimed in claim 4, characterized in that The ceramic substrate and the light-transmitting cover are respectively provided with mounting holes in the circumference, and the fasteners are simultaneously inserted into the mounting holes to lock the light-transmitting cover to the upper end face of the ceramic substrate.

6. A compact LED ceramic light source as claimed in claim 5, characterized in that The power module is installed in the middle of the base via a power socket, and the power socket forms the mounting cavity inside; the power socket is provided with a plurality of elastic buckles, and the ceramic substrate is provided with buckle grooves at intervals from the mounting holes to connect with the elastic buckles; the power socket is installed under the ceramic substrate by the engagement of the elastic buckles with the buckle grooves.

7. A compact LED ceramic light source as claimed in claim 6, characterized in that The power socket includes a mounting cavity for placing a power module and a mounting platform extending outward relative to the mounting cavity, wherein the elastic buckle is integrally formed on the outer peripheral edge of the mounting platform.

8. A compact LED ceramic light source as claimed in claim 7, characterized in that The lens assembly includes a lens and a diffuser plate arranged sequentially inside the light-transmitting cover; the outer peripheral edge of the diffuser plate is pressed and fastened to the inside of the light-transmitting cover by fastening screws.

9. A compact LED ceramic light source as claimed in claim 1, characterized in that The base is provided with a metal conductive spring, and the power module is electrically connected to an external power source through the metal conductive spring; the outer periphery of the base is provided with a wiring port for connecting to external wires.

10. The compact LED ceramic light source as described in claim 9, characterized in that, The base is provided with a limiting cover, the inner wall of the limiting cover is provided with an elastic buckle, and the base is provided with a buckle groove that matches the elastic buckle; the inner wall of the limiting cover is provided with a connector that connects to the power socket, and the outer wall of the power socket is provided with a rotary buckle groove that matches the connector, and the rotary buckle groove is provided with an opening that allows the connector to enter.

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