LED ceramic module

Abstract

The utility model discloses an LED ceramic module. The LED ceramic module comprises a ceramic base, a lens, an LED lamp bead and a power module, wherein the lens, the LED lamp bead and the power module are installed on the ceramic base. A threading hole is formed in the ceramic base; the power supply module is positioned in the ceramic base and is electrically connected with an external power line; a bowl-shaped heat dissipation piece used for installing LED lamp beads is arranged in the ceramic base. A mounting part of a heat dissipation piece is arranged in the ceramic base, the heat dissipation piece is arranged on the mounting part, and the outer wall of the heat dissipation piece is attached to the inner wall of the ceramic base in a matched mode. The LED lamp beads are fixedly installed on the heat dissipation piece through the limiting structures. According to the ceramic LED module with the built-in power supply, a traditional power supply assembly box is omitted, space is greatly saved, module assembly in a limited space is met, an external power supply assembly box is omitted, and connecting pieces are reduced, so that assembly is simplified, and manufacturing cost is reduced; and by improving the heat dissipation structure, the power of the LED module is greatly improved and is far higher than that of similar products in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lighting, in particular to a high-power LED ceramic module. Background Art

[0002] As the core component of modern lighting technology, LED modules are generally composed of LED lamp beads, chips, lamp holders and related circuits, and are widely used in various lighting scenarios. In practical applications, the design and manufacture of LED modules still face many challenges, such as space limitations and assembly problems, insufficient heat dissipation performance, cost and reliability issues, and environmental adaptability. Specifically, traditional LED modules usually require the installation of an external power assembly box, which not only takes up space, but also increases the complexity of assembly, limiting the application of modules in lighting equipment of various sizes and shapes; and because of the need for an external power box and complex connectors, it not only increases production costs, but may also introduce failure points, increasing the difficulty and cost of maintenance and repair; secondly, high-power LED modules face heat dissipation problems. If the heat cannot be effectively dissipated, it will cause excessive temperature, affecting the performance and life of the LED.

[0003] In order to solve the above problems, some manufacturers have improved the heat dissipation design and material selection of LED modules to improve their heat dissipation performance. At the same time, by optimizing the structural design of the module to reduce its volume and reduce the complexity of assembly. In addition, there are also plans to reduce its manufacturing cost and improve reliability by improving the power supply system of the module. Although certain progress has been made in the above aspects, there are still some problems and shortcomings: First, the existing heat dissipation design and material selection still cannot meet the heat dissipation requirements of high-power LED modules, resulting in excessively high operating temperatures of LEDs, affecting their performance and life. Secondly, the existing module design is still relatively complex and difficult to assemble, which is not conducive to large-scale production and cost reduction.

[0004] Therefore, it is necessary to propose a new type of high-power LED ceramic module to solve the problems existing in the above-mentioned prior art. Utility Model Content

[0005] Therefore, in order to solve the above problems in the prior art, the purpose of the present invention is to provide a high-power LED ceramic module.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] An LED ceramic module comprises a ceramic base and a lens, an LED lamp bead and a power module mounted on the ceramic base; the lens is covered and arranged at the end of the ceramic base; a threading hole is provided at the end of the ceramic base away from the lens for an external power line to extend to the inside of the ceramic base; the power module is located inside the ceramic base and is electrically connected to the external power line; a bowl-shaped heat sink for mounting the LED lamp bead is provided inside the ceramic base; a mounting portion for the heat sink is provided inside the ceramic base, the heat sink is arranged on the mounting portion, and the outer wall is adapted to fit with the inner wall of the ceramic base; the LED lamp bead is fixedly mounted on the heat sink by a limiting structure.

[0008] Further explanation: the power module is connected to an external power line via a wiring structure, and the wiring structure is located in the wire threading hole to fix the power line and the power module and form an electrical connection.

[0009] Further description, the wiring structure includes a wiring buckle that is clamped in the wire threading hole; the wiring buckle includes a buckle end and a wiring end that are integrally formed with its main body; the end diameter of the buckle end is larger than the end diameter of the wiring end and extends into the ceramic base; the end diameter of the wiring end is larger than the aperture of the wire threading hole; the edge of the wire threading hole is provided with a limiting convex ring that protrudes toward the inside of the ceramic base, and the buckle end limit clamp is set on the limiting convex ring.

[0010] Further description, the inner side of the buckle end is provided with an inclined first limit step, the inner wall of the limit convex ring is provided with a second limit step adapted thereto, and the buckle end is limitedly clamped on the limit convex ring through reverse buckling of the two first limit steps and the second limit step.

[0011] Further description, the limiting structure is composed of limiting protrusions distributed at intervals on the side of the end of the heat sink facing the lens and a fastener used to press and fix the LED lamp bead, at least two limiting protrusions are distributed at intervals at the opposite end edges of the LED lamp bead, and are used to limit the displacement of the LED lamp bead; the heat sink is provided with a locking hole for installing the fastener, and the locking hole and the limiting protrusion are staggered; the fastener is fastened and installed in the locking hole, and presses the edge of the LED lamp bead.

[0012] Further description, the wiring structure includes a wiring back cover that is snapped into the wire threading hole; the wiring back cover is provided with a wire crimping seat that is connected to the wire threading hole; the wire crimping seat is provided with a wire groove for accommodating the power cord, a wire crimping block is fastened above the wire groove, and the inner side of the wire crimping block is provided with a plurality of crimping lines that extend toward the wire crimping seat and are used to clamp the power cord.

[0013] Further explanation: the limiting structure is a bracket arranged on the heat sink, the bracket is provided with a limiting portion adapted to the LED lamp bead, the limiting portion is provided with at least two supporting blocks for fixing the LED lamp bead; the two supporting blocks are respectively arranged on adjacent or opposite edges of the limiting portion; the supporting block is provided with a supporting portion extending horizontally toward the center of the mounting portion, and the edge of the LED lamp bead is just located on the supporting portion; the heat sink is provided with an avoidance opening corresponding to the supporting block.

[0014] Further description, a threaded connecting column is provided on the wiring back cover, and the mounting parts of the bracket, heat sink and ceramic base are respectively provided with a first connecting hole, a second connecting hole and a third connecting hole corresponding to the connecting column; the bracket, heat sink, ceramic base and wiring back cover are assembled by sequentially passing a threaded connecting member through the first connecting hole, the second connecting hole, the third connecting hole and the threaded connecting column.

[0015] It is further explained that an annular convex edge is provided on the outer periphery of one end of the wiring rear cover close to the ceramic base, and a limiting step corresponding to the annular convex edge is provided on the inner side of the ceramic base, and the annular convex edge abuts against the limiting step.

[0016] It is further explained that the ceramic base is a ceramic base made of alumina ceramics, and the outer peripheral surface of the ceramic base is provided with a plurality of heat dissipation strips arranged at intervals; the heat sink is an aluminum heat sink, and the outer wall of the heat sink is provided with a plurality of heat dissipation grooves at circumferential intervals.

[0017] It is further specified that the threaded connection member is a screw.

[0018] Compared with the prior art, the beneficial effects of the present invention are at least in the following aspects:

[0019] 1. The utility model uses a ceramic LED module with a built-in power supply to eliminate the traditional power supply assembly box, which greatly saves space, meets the module assembly in a limited space, simplifies the module assembly process, improves space utilization efficiency and flexibility, and also reduces manufacturing costs; at the same time, the power supply module is integrated into the ceramic base, effectively utilizing the space of the LED module, and can be installed and arranged more flexibly; further, eliminating the external power supply assembly box and reducing the number of connectors not only simplifies assembly, but also reduces manufacturing costs;

[0020] 2. On the other hand, the utility model also improves the connection structure of the built-in power module, realizes stable electrical connection through the wiring structure, reduces the risk of failure caused by loose or poor connection of the external power line, and improves the reliability and durability of the LED module; at the same time, it also reduces the use of connectors, reduces the overall cost, improves the convenience of maintenance and installation, and adapts to a wide range of application needs;

[0021] 3. The core advantages of the present invention also include greatly improving the power of the LED module by improving the heat dissipation structure, which is much higher than similar products in the prior art. Specifically, the bowl-shaped heat sink is used as the intermediate heat dissipation medium, and the heat sink is abutted against the inner circumference of the ceramic base on all sides, which increases the heat dissipation area of ​​the LED lamp beads and improves the heat conduction efficiency, preventing the product from being overheated during operation and shortening the service life or damage of the bulb. At the same time, the present invention also utilizes the high thermal conductivity of aluminum or aluminum alloy materials to timely dissipate the heat of the LED lamp beads, evenly and quickly conduct it to the heat sink through the aluminum bowl-shaped heat sink; the heat sink is made of ceramic material, and utilizes the high thermal radiation characteristics and high-quality insulation performance of ceramics to further improve the heat dissipation capacity of this composite heat dissipation structure while also ensuring the insulation required by the bulb product.

[0022] 4. The high-power LED ceramic module of the utility model effectively improves the performance, reliability and service life of the product through a built-in power supply, an optimized heat dissipation structure and an improved connection design, while reducing costs and maintenance complexity, bringing significant innovation and competitive advantages to the LED lighting industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the LED ceramic module provided in Example 1 of the utility model;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the LED ceramic module provided in Example 1 of the utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of the LED ceramic module provided in Example 1 of the utility model;

[0026] Figure 4 A schematic diagram of the overall structure of the ceramic base of the LED ceramic module provided in Example 1 of the utility model;

[0027] Figure 5 A schematic diagram of the overall structure of the wiring buckle of the LED ceramic module provided in Example 1 of the utility model;

[0028] Figure 6 This is a schematic diagram of the overall structure of the LED ceramic module provided in Example 2 of the utility model;

[0029] Figure 7 This is a cross-sectional view of the overall structure of the LED ceramic module provided in Example 2 of the utility model;

[0030] Figure 8 This is a schematic diagram of the overall structure of the LED ceramic module provided in Example 2 of the utility model;

[0031] Fig. 9 A schematic diagram of the overall structure of the bracket of the LED ceramic module provided in Example 2 of the utility model;

[0032] Fig.10 A schematic diagram of the overall structure of the wiring rear cover of the LED ceramic module provided in Example 2 of the utility model;

[0033] Fig.11 This is a schematic diagram of the overall structure of the wire crimping seat of the LED ceramic module provided in Example 2 of the utility model.

[0034] In the figure:

[0035] 1. Ceramic base; 11. Threading hole; 12. Mounting part; 13. Position limiting convex ring; 131. Second position limiting step; 14. Third connecting hole; 15. Position limiting step; 16. Heat dissipation strip; 2. Lens; 3. LED lamp bead; 4. Power module; 5. Heat dissipation element; 51. Heat dissipation groove; 52. Locking hole; 53. Avoidance; 54. Second connecting hole; 6. Position limiting structure; 61. Position limiting convex block; 62. Fastener; 63. Support Frame; 631, limit part; 632, support block; 6321, support part; 633, first connection hole; 7, wiring structure; 71, wiring buckle; 711, buckle end; 7111, first limit step; 712, wiring terminal; 72, wiring rear cover; 721, wire pressing seat; 7211, wire groove; 722, wire pressing block; 7221, pressing line; 723, threaded connection column; 724, annular flange; 8, threaded connector;

[0036] 10. Power cord. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively in conjunction with the relevant drawings and embodiments below. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0038] Example 1

[0039] like Figure 1-5As shown, this embodiment 1 provides a high-power LED ceramic module, including a ceramic base 1 and a lens 2, an LED lamp bead 3, and a power module 4 installed on the ceramic base 1; the lens 2 is arranged to cover the end of the ceramic base 1; the end of the ceramic base 1 away from the lens 2 is provided with a threading hole 11 for the external power line 10 to extend to the inside of the ceramic base 1; specifically, the threading hole can be set in the middle part of the bottom of the ceramic base, or it can be set at the side wall of the bottom of the ceramic base. The power module 4 is located inside the ceramic base 1 and forms an electrical connection with the external power line 10; a bowl-shaped heat sink 5 for mounting the LED lamp bead 3 is provided inside the ceramic base 1; a mounting portion 12 of the heat sink 5 is provided inside the ceramic base 1, and the heat sink 5 is arranged on the mounting portion 12, and the outer wall is adapted to fit the inner wall of the ceramic base 1; the LED lamp bead 3 is fixedly mounted on the heat sink 5 by a limiting structure 6. In this embodiment, the mounting portion may be a protruding structure extending radially inward from the inner wall of the ceramic base, so as to form a mounting space having an inner diameter smaller than the bottom inner diameter of the heat sink.

[0040] Specifically, in this embodiment, the ceramic base 1 is a ceramic base 1 made of alumina ceramics, and the outer peripheral surface of the ceramic base 1 is provided with a plurality of heat dissipation strips 16 arranged at intervals; the heat sink 5 is an aluminum heat sink 5, and the outer wall of the heat sink 5 is provided with a plurality of heat dissipation grooves 51 at circumferential intervals.

[0041] Furthermore, the heat sink is made of 1060 pure aluminum. The high thermal conductivity of 1060 pure aluminum is utilized to dissipate the concentrated heat of the LED lamp beads, reduce the heat flux density, and evenly and quickly conduct it to the ceramic base, thereby accelerating the heat exchange between the ceramic base and the outside air to achieve a better heat dissipation effect. In addition, the ceramic base is made of alumina ceramics, and the high thermal radiation characteristics of ceramics are utilized to further improve the thermal conductivity while also ensuring the insulation required by the LED module.

[0042] In this embodiment, the light-emitting function of the LED lamp beads, the electrical connection relationship required to achieve light emission, and the electrical function of the power module are all referenced to the driving power supply of the prior art. The utility model only improves its assembly structure and does not involve the improvement of the electrical function of the light-emitting or driving module. Therefore, the above-mentioned electrical and circuit functions are not elaborated. The working principle of the lens and the specific way of covering it on the ceramic base are also not elaborated.

[0043] The utility model eliminates the traditional power supply assembly box through the ceramic LED module with built-in power supply, which greatly saves space, simplifies the assembly process of the module, improves the space utilization efficiency and flexibility, and also reduces the manufacturing cost; at the same time, the power supply module is integrated into the interior of the ceramic base, which effectively utilizes the space of the LED module, meets the module assembly in a limited space, and can be installed and arranged more flexibly; further, eliminating the external power supply assembly box and reducing the connecting parts not only simplifies the assembly, but also reduces the manufacturing cost.

[0044] The core advantages of the utility model also include greatly improving the power of the LED module through the improved heat dissipation structure, which is much higher than similar products in the prior art; specifically, a bowl-shaped heat sink is used as an intermediate heat dissipation medium, and the heat sink is abutted against the inner periphery of the ceramic base on all sides, thereby increasing the heat dissipation area of ​​the LED lamp bead and improving the heat conduction efficiency, thereby preventing the product from being overheated during operation and shortening the service life of the bulb or causing damage.

[0045] As a further preferred embodiment, the power module 4 is connected to the external power line 10 through the wiring structure 7, and the wiring structure 7 is located in the threading hole 11, fixing the power line 10 and the power module 4 to form an electrical connection. In this embodiment, a stable electrical connection is achieved through the wiring structure, reducing the risk of failure caused by loose or poor connection of the external power line, and improving the reliability and durability of the LED module; at the same time, the use of connectors is reduced, the overall cost is reduced, the convenience of maintenance and installation is improved, and a wide range of application needs are met.

[0046] The wiring structure is further introduced. The wiring structure 7 includes a wiring buckle 71 that is clamped in the threading hole 11; the wiring buckle 71 includes a clamping end 711 and a wiring end 712 that are integrally formed with its main body; the end diameter of the clamping end 711 is larger than the end diameter of the wiring end 712 and extends into the ceramic base 1; the end diameter of the wiring end 712 is larger than the aperture of the threading hole 11; specifically, the main body of the wiring buckle is inserted into the threading hole, and in order to achieve a more stable connection, the end diameters of the clamping end and the wiring end are both larger than the end diameter of the middle body; the edge of the threading hole 11 is provided with a limiting convex ring 13 protruding toward the inside of the ceramic base 1, and the clamping end 711 is clamped on the limiting convex ring 13.

[0047] To be more specific, the inner side of the buckle end 711 is provided with an inclined first limiting step 7111, and the inner wall of the limiting convex ring 13 is provided with a second limiting step 131 adapted thereto, and the buckle end 711 is limitedly clamped on the limiting convex ring 13 by the reverse buckling of the two first limiting steps 7111 and the second limiting step 131. In this embodiment, the second limiting step is a secondary inclined step inclined outwardly toward the buckle end, and the buckle end is reversely buckled on the limiting convex ring, which can ensure that the buckle end with a larger end diameter is restricted on the limiting convex ring and cannot be separated from the threading hole, while the wiring terminal extending to the outside of the threading hole cannot enter the interior of the ceramic base from the threading hole because the end diameter is larger than the hole diameter of the threading hole. Therefore, the structural design of the wiring buckle in this embodiment can achieve a stable connection without using additional connectors. Not only is the installation convenient and fast, but the installation cost is also reduced.

[0048] As a further preferred embodiment, the limiting structure 6 is composed of limiting protrusions 61 distributed at intervals on the side of the end of the heat sink 5 facing the lens 2 and a fastener 62 for pressing and fixing the LED lamp bead 3, at least two limiting protrusions 61 are distributed at intervals at the opposite end edges of the LED lamp bead 3, for limiting the displacement of the LED lamp bead 3; the heat sink 5 is provided with a locking hole 52 for installing the fastener 62, and the locking hole 52 is staggered with the limiting protrusion 61; the fastener 62 is fastened and installed in the locking hole 52, and presses the edge of the LED lamp bead 3.

[0049] In this embodiment, the part where the LED lamp bead and the heat sink are assembled is a square structure, and the two limiting protrusions 61 can be distributed on two opposite sides thereof, and the two fasteners are pressed and fixed on the diagonal parts thereof and are staggered with the limiting protrusions, so that the stable installation of the LED lamp bead can be ensured. In other embodiments, the limiting protrusions can also be provided with 4 or more.

[0050] Example 2

[0051] like Figure 6-11 As shown, this embodiment 2 provides a high-power LED ceramic module. The difference between this embodiment 2 and embodiment 1 is that the arrangement of the wiring structure 7 and the LED lamp bead 3 is different, as follows:

[0052] The wiring structure 7 includes a wiring rear cover 72 that is snapped into the threading hole 11; in the second embodiment, the diameter of the threading hole 11 is consistent with the inner diameter of the ceramic base, and the wiring rear cover 72 can be directly embedded in the threading hole. To further facilitate the positioning and installation of the wiring rear cover, in the present embodiment, an annular convex edge 724 is provided on the outer periphery of one end of the wiring rear cover 72 close to the ceramic base 1, and a limiting step 15 corresponding to the annular convex edge is provided on the inner side of the ceramic base 1, and the annular convex edge 724 abuts against the limiting step 15.

[0053] The wiring structure is described in more detail as follows: a wire crimping seat 721 connected to the wire threading hole 11 is provided on the wiring back cover 72; a wire crimping seat 721 is provided with a wire groove 7211 for accommodating the power cord 10, a wire crimping block 722 is fastened above the wire groove 7211, and a plurality of crimping lines 7221 extending toward the wire crimping seat 721 and used to clamp the power cord 10 are provided on the inner side of the wire crimping block 722.

[0054] As a further preferred embodiment, the limiting structure 6 is a bracket 63 arranged on the heat sink 5, and the bracket 63 is provided with a limiting portion 631 adapted to the LED lamp bead 3, and the limiting portion 631 is provided with at least two supporting blocks 632 for fixing the LED lamp bead 3; the two supporting blocks 632 are respectively arranged on the adjacent or opposite edges of the limiting portion 631; the supporting block 632 is horizontally extended toward the center of the mounting portion 12 and provided with a supporting portion 6321, and the edge of the LED lamp bead 3 is just located on the supporting portion 6321; the heat sink 5 is provided with an avoidance opening 53 corresponding to the supporting block 632. In this embodiment, the LED lamp bead is installed and limited on the heat sink by installing the bracket, and the installation operation is more convenient and faster, and can provide a better and more stable installation and fixing effect.

[0055] As a further preferred embodiment, a threaded connecting column 723 is provided on the wiring back cover 72, and the bracket 63, the heat sink 5, and the mounting portion 12 of the ceramic base 1 are respectively provided with a first connecting hole 633, a second connecting hole 54, and a third connecting hole 14 corresponding to the connecting column; in the present embodiment, the mounting portion 12 is a bowl-shaped mounting portion in the ceramic base that is adapted to the contour of the heat sink, and its third connecting hole is arranged through the bottom of the bowl-shaped mounting portion.

[0056] The assembly of the bracket 63, the heat sink 5, the ceramic base 1 and the wiring rear cover 72 is completed by sequentially passing the threaded connector 8 through the first connection hole 633, the second connection hole 54, the third connection hole 14 and the threaded connection column 723. In this embodiment, the threaded connector 8 is a screw. In other optional embodiments, fasteners such as rivets can also be used instead of the threaded connector to achieve locking by interference connection with the connection column.

[0057] In this embodiment 2, by directly embedding the wiring back cover into the wire threading hole of the ceramic base and adopting a bowl-shaped mounting portion in the ceramic base that matches the contour of the heat sink, a single screw can be used to simultaneously complete the assembly of four main components in one step, and the structure of the entire LED module is more compact and more integrated. In addition, when maintenance or replacement of parts is required, the entire LED module can be disassembled by simply loosening the screws or rivets, which facilitates subsequent maintenance and repair operations and reduces maintenance costs and repair time.

[0058] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. For ordinary technicians in this field, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An LED ceramic module, characterized in that: It includes a ceramic base and a lens, an LED lamp bead, and a power module installed on the ceramic base; the lens is covered and arranged at the end of the ceramic base; the end of the ceramic base away from the lens is provided with a threading hole for an external power line to extend to the inside of the ceramic base; the power module is located inside the ceramic base and forms an electrical connection with the external power line; a bowl-shaped heat sink for mounting the LED lamp bead is provided inside the ceramic base; a mounting portion for the heat sink is provided inside the ceramic base, the heat sink is arranged on the mounting portion, and the outer wall is adapted to fit with the inner wall of the ceramic base; the LED lamp bead is fixedly mounted on the heat sink by a limiting structure.

2. The LED ceramic module according to claim 1, characterized in that: The power module is connected to an external power line through a wiring structure, and the wiring structure is located in the wire threading hole to fix the power line and the power module to form an electrical connection.

3. The LED ceramic module according to claim 2, characterized in that: The wiring structure includes a wiring buckle that is clamped in the wire threading hole; the wiring buckle includes a buckle end and a wiring end that are integrally formed with its main body; the end diameter of the buckle end is larger than the end diameter of the wiring end and extends into the ceramic base; the end diameter of the wiring end is larger than the aperture of the wire threading hole; the edge of the wire threading hole is provided with a limiting convex ring that protrudes toward the inside of the ceramic base, and the buckle end limit clamp is set on the limiting convex ring.

4. The LED ceramic module according to claim 3, characterized in that: An inclined first limiting step is provided on the inner side of the buckle end, and a second limiting step adapted to the limiting convex ring is provided on the inner wall of the buckle end. The buckle end is limitedly clamped on the limiting convex ring through reverse buckling of the two first limiting steps and the second limiting step.

5. The LED ceramic module according to claim 4, characterized in that: The limiting structure is a limiting protrusion distributed at intervals on the side of the end of the heat sink facing the lens and a fastener used to press and fix the LED lamp bead, at least two limiting protrusions are distributed at intervals at the two opposite ends of the LED lamp bead, and are used to limit the displacement of the LED lamp bead; the heat sink is provided with a locking hole for installing the fastener, and the locking hole is staggered with the limiting protrusion; the fastener is fastened and installed in the locking hole, and presses the edge of the LED lamp bead.

6. The LED ceramic module according to claim 2, characterized in that: The wiring structure includes a wiring rear cover that is snapped into the wire threading hole; the wiring rear cover is provided with a wire pressing seat that is connected to the wire threading hole; the wire pressing seat is provided with a wire groove that accommodates the power cord, a wire pressing block is fastened above the wire groove, and the inner side of the wire pressing block is provided with a plurality of pressing lines that extend toward the wire pressing seat and are used to press the power cord.

7. The LED ceramic module according to claim 6, characterized in that: The limiting structure is a bracket arranged on the heat sink, and the bracket is provided with a limiting portion adapted to the LED lamp bead, and the limiting portion is provided with at least two supporting blocks for fixing the LED lamp bead; the two supporting blocks are respectively arranged on adjacent or opposite edges of the limiting portion; the supporting block is horizontally extended toward the center of the mounting portion and provided with a supporting portion, and the edge of the LED lamp bead is just located on the supporting portion; the heat sink is provided with an avoidance opening corresponding to the supporting block.

8. The LED ceramic module according to claim 7, characterized in that: The wiring rear cover is provided with a threaded connection column, and the mounting parts of the bracket, heat sink and ceramic base are respectively provided with a first connection hole, a second connection hole and a third connection hole corresponding to the connection column; the assembly of the bracket, heat sink, ceramic base and wiring rear cover is completed by sequentially penetrating the first connection hole, the second connection hole, the third connection hole and the threaded connection column with a threaded connection component.

9. The LED ceramic module according to claim 8, characterized in that: An annular convex edge is provided on the outer periphery of one end of the wiring rear cover close to the ceramic base, and a limiting step corresponding to the annular convex edge is provided on the inner side of the ceramic base, and the annular convex edge abuts against the limiting step.

10. The LED ceramic module according to claim 1, characterized in that: The ceramic base is a ceramic base made of alumina ceramics, and a plurality of heat dissipation strips arranged at intervals are arranged on the outer peripheral surface of the ceramic base; the heat dissipation element is an aluminum heat dissipation element, and a plurality of heat dissipation grooves are arranged at intervals on the outer wall of the heat dissipation element in the circumferential direction.

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