Radiator structure for high-power lamp and lamp

Abstract

The utility model provides a radiator structure for a high-power lamp and the lamp. The radiator structure for the high-power lamp comprises a radiator body, a heat conduction aluminum substrate and a middle heat conduction sheet, the heat conduction aluminum substrate abuts against a light source module, the middle heat conduction sheet is a heat conduction copper sheet, and a heat conduction embedding groove and an installation fixing groove which are communicated are formed in the end, facing the heat conduction aluminum substrate, of the radiator body. A plurality of limiting fixing blocks are arranged in the heat conduction embedding groove, a plurality of corresponding clamping grooves are formed in the outer periphery of the middle heat conduction piece, the limiting fixing blocks are clamped in the clamping grooves, the middle heat conduction piece abuts against the radiator body, the thickness of the middle heat conduction piece is larger than or equal to that of the limiting fixing blocks, and the heat conduction aluminum substrate is fixedly installed on the limiting fixing blocks. The heat conduction aluminum substrate is located in the heat conduction embedding groove so that the heat conduction aluminum substrate can abut against the middle heat conduction piece, and the installation fixing groove is used for containing the part of the lamp body. According to the radiator structure, the installation convenience is improved, the middle heat-conducting fins are convenient to replace, and the good radiating effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of lamp heat dissipation, and particularly relates to a heat dissipation structure for high-power lamps and a lamp. BACKGROUND

[0002] At present, the heat dissipation device of a lamp generally adopts aluminum material, and the heat dissipation device is changed in internal heat dissipation fin structure to increase heat dissipation conduction area, so that heat generated during lamp use is quickly transferred out through the heat dissipation fin. However, for an ultra-high-power lamp, heat is accumulated when a light source module is used, which leads to rapid heating of the lamp. If a traditional aluminum heat dissipation device is used alone, the heat conduction effect is poor, which seriously affects the service life of the lamp.

[0003] Therefore, as disclosed in Chinese Patent Publication No. CN 103939871 A, a high-efficiency heat dissipation high-power LED lighting lamp base includes a heat dissipation device body aluminum core, heat dissipation fins, an aluminum base plate, a bottom copper sheet, and heat-conducting copper pipes. The aluminum base plate is used to mount an LED lamp body. A bottom copper sheet is fixed on the aluminum base plate by welding. The heat dissipation device body aluminum core is fixed on the bottom copper sheet by welding. The outer wall of the heat dissipation device body aluminum core is fixed with a plurality of heat dissipation fins through grooves. The heat dissipation fins are further fixed on the bottom copper sheet by welding. A plurality of heat-conducting copper pipes are welded and fixed on the corresponding circular-arc grooves in the inner wall of the heat dissipation device body aluminum core and the bottom copper sheet.

[0004] However, although the above-mentioned high-efficiency heat dissipation high-power LED lighting lamp base can effectively dissipate heat from the lamp, the aluminum base plate, the bottom copper sheet, and the heat dissipation device body aluminum core need to be connected by welding, which leads to complicated installation operation and inconvenience in repairing and replacing the bottom copper sheet. Practical new type content

[0005] The present disclosure aims to overcome the deficiencies in the prior art, provide a heat dissipation structure for high-power lamps, which improves installation convenience and facilitates repair and replacement of the intermediate heat-conducting sheet, thereby ensuring good heat dissipation effect.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] The application discloses a heat sink structure for a high-power lamp, which comprises a heat sink body and a heat-conducting aluminum base plate used for being fixedly abutted with a light source module of a lamp body, and further comprises an intermediate heat-conducting sheet, wherein the intermediate heat-conducting sheet is a heat-conducting copper sheet, one end of the heat sink body is provided with a heat-conducting embedding groove and a mounting and fixing groove which are connected in a communication mode, a plurality of limiting and fixing blocks are arranged in the heat-conducting embedding groove, a plurality of clamping grooves are formed in the outer periphery of the intermediate heat-conducting sheet, the limiting and fixing blocks and the clamping grooves are arranged in a one-to-one correspondence mode, the limiting and fixing blocks are clamped in the clamping grooves, so that the intermediate heat-conducting sheet is abutted with the heat sink body, wherein the thickness of the intermediate heat-conducting sheet is greater than or equal to the thickness of the limiting and fixing blocks, the heat-conducting aluminum base plate is fixedly mounted on the limiting and fixing blocks and is located in the heat-conducting embedding groove, so that the heat-conducting aluminum base plate is abutted with the intermediate heat-conducting sheet, and the mounting and fixing groove is used for accommodating part of the lamp body.

[0008] In one of the embodiments, each of the limiting and fixing blocks comprises oppositely arranged first and second abutting parts which are jointly abutted with the inner side wall of the clamping groove, so that the intermediate heat-conducting sheet is clamped on each of the limiting and fixing blocks.

[0009] In one of the embodiments, each of the limiting and fixing blocks has a rectangular structure, and the distance between the first and second abutting parts is equal to the distance between the two opposite inner side walls of the clamping groove.

[0010] In one of the embodiments, the number of the clamping grooves is two, and the intermediate heat-conducting sheet has a symmetrical structure, and the two clamping grooves are symmetrically formed in the outer periphery of the intermediate heat-conducting sheet.

[0011] In one of the embodiments, the heat sink body and the limiting and fixing blocks are integrally formed.

[0012] In one of the embodiments, the heat sink structure for the high-power lamp further comprises a locking and fixing part, each of the limiting and fixing blocks is provided with a fixing hole, the heat-conducting aluminum base plate is provided with a mounting hole corresponding to the fixing hole, so that the locking and fixing part is fixedly connected to the limiting and fixing block through the mounting hole.

[0013] In one of the embodiments, the heat sink structure for the high-power lamp further comprises heat-conducting silicone grease, a heat-conducting transition part is formed at the connection position between the inner wall of the heat-conducting embedding groove and the inner wall of the mounting and fixing groove, and the heat-conducting silicone grease is coated on the heat-conducting transition part.

[0014] In one of the embodiments, the heat sink body is further provided with a wire protection groove which is used for accommodating the electric wire of the lamp body.

[0015] A lamp, comprising a lamp body and the heat sink structure for high-power lamps of any of the above embodiments, part of the lamp body is accommodated in the mounting and fixing groove.

[0016] In one of the embodiments, the lamp further comprises a bending prevention ring, which is clamped with the heat sink body.

[0017] Compared with the prior art, the present disclosure has at least the following advantages:

[0018] 1) The heat sink structure for high-power lamps of the present disclosure, since a plurality of limiting fixing blocks are arranged in the heat conduction embedding groove, and a plurality of clamping grooves are formed on the outer periphery of the middle heat conduction sheet, the limiting fixing blocks are clamped one by one in the clamping grooves, ensuring that the middle heat conduction sheet and the heat sink body abut each other, and the heat conduction aluminum substrate is fixedly installed on the limiting fixing block, the heat conduction aluminum substrate is located in the heat conduction embedding groove, and the thickness of the middle heat conduction sheet is greater than or equal to the thickness of the limiting fixing block, so that the middle heat conduction sheet and the heat conduction aluminum substrate abut each other. On the one hand, it ensures that the heat conduction aluminum substrate quickly conducts the heat generated by the light source module to the middle heat conduction sheet when the light source module of the lamp body is in use. Since the middle heat conduction sheet is a heat conduction copper sheet, the heat conduction effect of the heat conduction copper sheet is better than that of aluminum material, which avoids the accumulation of heat on the heat conduction aluminum substrate and effectively conducts the heat to the heat sink body through the heat conduction copper sheet, achieving good heat dissipation effect. On the other hand, it avoids mutual welding between the heat conduction aluminum substrate, the middle heat conduction sheet and the heat sink body, ensures that the middle heat conduction sheet is firmly fixed in the heat conduction embedding groove of the heat sink body by the heat conduction aluminum substrate, thereby improving the convenience of installation operation.

[0019] 2) The heat sink structure for high-power lamps of the present disclosure, since the middle heat conduction sheet is clamped on the limiting fixing block of the heat conduction embedding groove, it realizes welding-free connection, ensures the simplicity of the heat sink structure, and facilitates the replacement of the middle heat conduction sheet. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 The structural schematic diagram of the heat sink structure for high-power lamps of an embodiment of the present disclosure;

[0022] Figure 2 The structural schematic diagram of the heat sink structure for high-power lamps of an embodiment of the present disclosure; Figure 1 The structural schematic diagram of the heat sink structure for high-power lamps of an embodiment of the present disclosure;

[0023] Figure 3 is a partial enlarged view of A shown in FIG. 1; Figure 2

[0024] Figure 4 is a structural schematic view of a lamp of an embodiment of the present disclosure;

[0025] Figure 5 is a partial enlarged view of B shown in FIG. 2. Figure 4

[0026] Reference signs: 10, radiator structure for high-power lamp; 100, radiator main body; 101, heat-conducting embedding groove; 102, mounting and fixing groove; 103, wire protection groove; 200, heat-conducting aluminum substrate; 201, mounting hole; 300, intermediate heat-conducting sheet; 301, clamping groove; 400, limiting and fixing block; 410, first abutting portion; 420, second abutting portion; 401, fixing hole; 500, locking and fixing member; 1, lamp; 20, lamp body; 30, anti-bending ring. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present disclosure can be understood more thoroughly and comprehensively.

[0028] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0029] 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 the present disclosure belongs. The terminology used in the description of the present disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below in combination with specific embodiments:

[0031] As Figures 1 to 4 ​​As shown, the heat sink structure 10 for high-power lamp of an embodiment includes a heat sink body 100, a heat-conductive aluminum substrate 200 and an intermediate heat-conductive sheet 300. The heat-conductive aluminum substrate 200 is used to be fixedly abutted with a light source module of a lamp body 20. The intermediate heat-conductive sheet 300 is a heat-conductive copper sheet. The heat sink body 100 is provided with a heat-conductive embedding groove 101 and a mounting and fixing groove 102 which are in communication at one end of the heat-conductive aluminum substrate 200. A plurality of limiting and fixing blocks 400 are arranged in the heat-conductive embedding groove 101. A plurality of clamping grooves 301 are formed at the outer periphery of the intermediate heat-conductive sheet 300. The limiting and fixing blocks 400 are arranged in one-to-one correspondence with the clamping grooves 301. The limiting and fixing blocks 400 are clamped in the clamping grooves 301 so that the intermediate heat-conductive sheet 300 is abutted with the heat sink body 100. The thickness of the intermediate heat-conductive sheet 300 is greater than or equal to the thickness of the limiting and fixing blocks 400. The heat-conductive aluminum substrate 200 is fixedly mounted on the limiting and fixing blocks 400 and is located in the heat-conductive embedding groove 101 so that the heat-conductive aluminum substrate 200 is abutted with the intermediate heat-conductive sheet 300. The mounting and fixing groove 102 is used to accommodate part of the lamp body 20.

[0032] It can be understood that, since the heat-conductive embedding groove 101 is provided with a plurality of limiting and fixing blocks 400 and the outer periphery of the intermediate heat-conductive sheet 300 is formed with a plurality of clamping grooves 301, the limiting and fixing blocks 400 are clamped in the clamping grooves 301 in one-to-one correspondence, which ensures that the intermediate heat-conductive sheet 300 is abutted with the heat sink body 100. The heat-conductive aluminum substrate 200 is fixedly mounted on the limiting and fixing blocks 400 and is located in the heat-conductive embedding groove 101. The thickness of the intermediate heat-conductive sheet 300 is greater than or equal to the thickness of the limiting and fixing blocks 400, which ensures that the intermediate heat-conductive sheet 300 is abutted with the heat-conductive aluminum substrate 200. On the one hand, it ensures that, when the light source module of the lamp body 20 is used, the heat-conductive aluminum substrate 200 quickly conducts the heat generated by the light source module to the intermediate heat-conductive sheet 300. Since the intermediate heat-conductive sheet 300 is a heat-conductive copper sheet, the heat-conductive copper sheet has a better heat-conducting effect than the aluminum material. This avoids the heat from gathering on the heat-conductive aluminum substrate 200 and effectively conducts the heat to the heat sink body 100 through the heat-conductive copper sheet, thereby achieving a good heat dissipation effect. On the other hand, it avoids mutual welding between the heat-conductive aluminum substrate 200, the intermediate heat-conductive sheet 300 and the heat sink body 100, which ensures that the intermediate heat-conductive sheet 300 is fixedly mounted on the heat sink body 100 by the heat-conductive aluminum substrate 200, thereby improving the convenience of installation operation.

[0033] It can also be understood that, since the intermediate heat-conductive sheet 300 is clamped on the limiting and fixing blocks 400 of the heat-conductive embedding groove 101, the welding connection is avoided, which ensures the simplicity of the heat sink structure and facilitates the maintenance and replacement of the intermediate heat-conductive sheet 300.

[0034] As shown in FIG. 1, the heat sink structure 10 for high-power lamp of an embodiment includes a heat sink body 100, a heat-conductive aluminum substrate 200 and an intermediate heat-conductive sheet 300. The heat-conductive aluminum substrate 200 is used to be fixedly abutted with a light source module of a lamp body 20. The intermediate heat-conductive sheet 300 is a heat-conductive copper sheet. The heat sink body 100 is provided with a heat-conductive embedding groove 101 and a mounting and fixing groove 102 which are in communication at one end of the heat-conductive aluminum substrate 200. A plurality of limiting and fixing blocks 400 are arranged in the heat-conductive embedding groove 101. A plurality of clamping grooves 301 are formed at the outer periphery of the intermediate heat-conductive sheet 300. The limiting and fixing blocks 400 are arranged in one-to-one correspondence with the clamping grooves 301. The limiting and fixing blocks 400 are clamped in the clamping grooves 301 so that the intermediate heat-conductive sheet 300 is abutted with the heat sink body 100. The thickness of the intermediate heat-conductive sheet 300 is greater than or equal to the thickness of the limiting and fixing blocks 400. The heat-conductive aluminum substrate 200 is fixedly mounted on the limiting and fixing blocks 400 and is located in the heat-conductive embedding groove 101 so that the heat-conductive aluminum substrate 200 is abutted with the intermediate heat-conductive sheet 300. The mounting and fixing groove 102 is used to accommodate part of the lamp body 20. Figure 1 and Figure 2As shown in the drawings, in one of the embodiments, each limiting fixed block 400 comprises a first abutting part 410 and a second abutting part 420 arranged oppositely, and the first abutting part 410 and the second abutting part 420 abut the inner side wall of the clamping groove 301 together, so that the intermediate heat-conducting sheet 300 is clamped on each limiting fixed block 400. In this embodiment, since the first abutting part 410 and the second abutting part 420 abut the inner side wall of the clamping groove 301 together, the intermediate heat-conducting sheet 300 is stably clamped on the limiting fixed block 400, preventing the position of the intermediate heat-conducting sheet 300 from deviating during installation, ensuring that the heat-conducting aluminum substrate 200 stably conducts the heat of the light source module to the heat-dissipating body 100, and avoiding the situation of heat accumulation.

[0035] As shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, in one of the embodiments, each limiting fixed block 400 has a rectangular structure, and the distance between the first abutting part 410 and the second abutting part 420 is equal to the distance between the two opposite inner side walls of the clamping groove 301. In this embodiment, since the distance between the first abutting part 410 and the second abutting part 420 is equal to the distance between the two opposite inner side walls of the clamping groove 301, the adaptability of the limiting fixed block 400 clamped in the clamping groove 301 is ensured, avoiding the situation that the distance between the first abutting part 410 and the second abutting part 420 is greater than the distance between the two opposite inner side walls of the clamping groove 301, which leads to the problem that the intermediate heat-conducting sheet 300 cannot be installed, and also avoiding the situation that the distance between the first abutting part 410 and the second abutting part 420 is less than the distance between the two opposite inner side walls of the clamping groove 301, which leads to the problem that there is a large gap between the clamping groove 301 and the limiting fixed block 400 during installation, affecting the heat dissipation effect.

[0036] As shown in the drawings, Figure 1 As shown in the drawings, in one of the embodiments, the number of clamping grooves 301 is two, and the intermediate heat-conducting sheet 300 has a symmetrical structure, and the two clamping grooves 301 are symmetrically formed on the outer periphery of the intermediate heat-conducting sheet 300. In this embodiment, the two clamping grooves 301 symmetrically formed on the outer periphery of the intermediate heat-conducting sheet 300 ensure the firmness of the intermediate heat-conducting sheet 300 when installed on the limiting fixed block 400, and the two clamping grooves 301 make it easy to position the intermediate heat-conducting sheet 300 when installed on the limiting fixed block 400, avoiding the situation that the position of the intermediate heat-conducting sheet 300 deviates.

[0037] As shown in the drawings, Figure 1 As shown in the drawings, in one of the embodiments, the heat-dissipating body 100 and the limiting fixed block 400 are integrally formed, ensuring the firmness of the limiting fixed block 400 connected to the heat-dissipating body 100, ensuring the structural strength of the limiting fixed block 400, and thus ensuring the stability of the installation position of the intermediate heat-conducting sheet 300.

[0038] As shown in the drawings, Figure 1As shown, in one embodiment, the heat sink structure 10 for high-power lamps further comprises locking fixtures 500, each limiting fixture 400 is provided with a fixing hole 401, and the heat-conducting aluminum substrate 200 is provided with a mounting hole 201 corresponding to the fixing hole 401, so that the locking fixtures 500 are fixedly connected to the limiting fixture 400 through the mounting hole 201. In this embodiment, the locking fixtures 500 are used to fixedly connect the heat sink body 100 and the heat-conducting aluminum substrate 200, which on the one hand ensures the mutual abutment of the heat-conducting aluminum substrate 200 and the intermediate heat-conducting sheet 300, and on the other hand ensures that the intermediate heat-conducting sheet 300 is fixed between the heat sink body 100 and the heat-conducting aluminum substrate 200, thereby avoiding the mutual welding of the heat-conducting aluminum substrate 200, the intermediate heat-conducting sheet 300 and the heat sink body 100, and ensuring the convenience of installation operation. In one embodiment, the locking fixtures 500 are fastening bolts, and the fixing holes 401 are threaded holes, and the locking fixtures 500 are fastened and connected in the fixing holes 401 through the mounting holes 201.

[0039] In one embodiment, the heat sink structure 10 for high-power lamps further comprises heat-conducting silicone grease (not shown in the figure), and the heat-conducting transition part is formed at the connection between the inner wall of the heat-conducting embedding groove 101 and the inner wall of the mounting and fixing groove 102, and the heat-conducting silicone grease is coated on the heat-conducting transition part. In this embodiment, the heat-conducting silicone grease is coated on the heat-conducting transition part formed at the connection between the inner wall of the heat-conducting embedding groove 101 and the inner wall of the mounting and fixing groove 102, so that the heat generated around the lamp body 20 is transmitted to the heat sink body 100 through the heat-conducting silicone grease, thereby improving the heat dissipation effect of the heat sink structure.

[0040] As shown in Figure 1 , in one embodiment, the heat sink body 100 is further provided with a wire protection groove 103, which is used to accommodate the wires of the lamp body 20, so as to avoid the exposure of the wires connected to the lamp body 20 and protect the wires.

[0041] As shown in Figure 1 , Figure 4 and Figure 5 , the present disclosure further provides a lamp 1, which comprises a lamp body 20 and the heat sink structure 10 for high-power lamps according to any one of the above embodiments, and part of the lamp body 20 is accommodated in the mounting and fixing groove 102, so as to ensure that the lamp body 20 can be fixedly installed with the heat sink body 100, and the heat generated by the lamp body 20 can be quickly dissipated from the heat sink body 100.

[0042] As shown in Figure 1 , Figure 4 and Figure 5As shown, in one of the embodiments, the lamp 1 further comprises a bending prevention ring 30, which is clamped with the radiator body 100, that is, the bending prevention ring 30 is clamped in the wire protection groove 103 of the radiator body 100 away from the lamp body 20. Since the wire near the wire protection groove 103 away from the lamp body 20 is often plugged in and out, the wire is often bent, which causes the contact between the wire and the radiator body 100 to wear out. The inner periphery of the added bending prevention ring 30 is designed to be smooth, so that after the wire passes through the bending prevention ring 30, the wire is prevented from being bent and worn out.

[0043] Compared with the prior art, the present disclosure has at least the following advantages:

[0044] 1) The radiator structure 10 for high-power lamps of the present disclosure is provided with a plurality of limiting fixing blocks 400 in the heat-conducting embedded groove 101, and a plurality of clamping grooves 301 are formed on the outer periphery of the middle heat-conducting sheet 300, so that the limiting fixing blocks 400 are clamped one by one in the clamping grooves 301, ensuring that the middle heat-conducting sheet 300 and the radiator body 100 abut each other, and the heat-conducting aluminum substrate 200 is fixedly installed on the limiting fixing blocks 400. The heat-conducting aluminum substrate 200 is located in the heat-conducting embedded groove 101, and the thickness of the middle heat-conducting sheet 300 is greater than or equal to the thickness of the limiting fixing block 400, so that the middle heat-conducting sheet 300 and the heat-conducting aluminum substrate 200 abut each other. On the one hand, it ensures that the light source module of the lamp body 20 is used, and the heat-conducting aluminum substrate 200 quickly conducts the heat generated by the light source module to the middle heat-conducting sheet 300. Since the middle heat-conducting sheet 300 is a heat-conducting copper sheet, the heat-conducting copper sheet has better heat-conducting effect than aluminum material, which avoids the accumulation of heat on the heat-conducting aluminum substrate 200, effectively conducts the heat to the radiator body 100 through the heat-conducting copper sheet, and achieves good heat dissipation effect. On the other hand, it avoids the mutual welding between the heat-conducting aluminum substrate 200, the middle heat-conducting sheet 300 and the radiator body 100, ensures that the middle heat-conducting sheet 300 is fixedly fixed in the heat-conducting embedded groove 101 of the radiator body 100 by the heat-conducting aluminum substrate 200, and improves the convenience of installation operation.

[0045] 2) The radiator structure 10 for high-power lamps of the present disclosure is clamped on the limiting fixing blocks 400 of the heat-conducting embedded groove 101, which realizes welding-free connection, ensures the simplicity of the radiator structure, and facilitates the maintenance and replacement of the middle heat-conducting sheet 300.

[0046] The above-described embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, a number of modifications and improvements can be made, which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A heat sink structure for high-power lamps, comprising a heat sink body and a heat-conductive aluminum base plate for fixedly abutting with a light source module of a lamp body, characterized in that the heat sink structure for high-power lamps further comprises an intermediate heat-conductive plate, the intermediate heat-conductive plate is a heat-conductive copper plate, one end of the heat sink body towards the heat-conductive aluminum base plate is provided with a heat-conductive embedding groove and a mounting and fixing groove in communication, a plurality of limiting and fixing blocks are arranged in the heat-conductive embedding groove, a plurality of clamping grooves are formed on the outer periphery of the intermediate heat-conductive plate, the limiting and fixing blocks and the clamping grooves are arranged one by one, the limiting and fixing blocks are clamped in the clamping grooves, so that the intermediate heat-conductive plate abuts with the heat sink body, wherein the thickness of the intermediate heat-conductive plate is greater than or equal to the thickness of the limiting and fixing blocks, the heat-conductive aluminum base plate is fixedly mounted on the limiting and fixing blocks, and the heat-conductive aluminum base plate is located in the heat-conductive embedding groove, so that the heat-conductive aluminum base plate abuts with the intermediate heat-conductive plate, and the mounting and fixing groove is used for accommodating part of the lamp body. Each of the limiting and fixing blocks comprises a first abutting portion and a second abutting portion arranged oppositely, and the first abutting portion and the second abutting portion jointly abut the inner side wall of the clamping groove, so that the intermediate heat-conductive plate is clamped on each of the limiting and fixing blocks.

2. The heat sink structure for a high-power lamp as set forth in claim 1, wherein Each of the limiting and fixing blocks has a rectangular structure, and the distance between the first abutting portion and the second abutting portion is equal to the distance between the two opposite inner side walls of the clamping groove.

3. The heat sink structure for a high-power lamp as set forth in claim 2, wherein The number of the clamping grooves is two, and the intermediate heat-conductive plate has a symmetrical structure, and the two clamping grooves are symmetrically formed on the outer periphery of the intermediate heat-conductive plate.

4. The heat sink structure for a high-power lamp as set forth in claim 3, wherein The heat sink body and the limiting and fixing blocks are an integral molding structure.

5. The heat sink structure for a high-power lamp as set forth in claim 1, wherein The heat sink structure for high-power lamps further comprises a locking and fixing member, each of the limiting and fixing blocks is provided with a fixing hole, and the heat-conductive aluminum base plate is provided with a mounting hole corresponding to the fixing hole, so that the locking and fixing member is fixedly connected to the limiting and fixing blocks through the mounting hole.

6. The heat sink structure for a high-power lamp as set forth in claim 5, wherein The heat sink structure for high-power lamps further comprises heat-conductive silicone grease, and a heat-conductive transition portion is formed at the connection between the inner wall of the heat-conductive embedding groove and the inner wall of the mounting and fixing groove, and the heat-conductive silicone grease is coated on the heat-conductive transition portion.

7. The heat sink structure for a high-power lamp as set forth in claim 1, wherein The heat sink body is further provided with a wire protection groove for accommodating the electric wire of the lamp body.

8. The heat sink structure for a high-power lamp as set forth in claim 1, wherein The lamp body and the heat sink structure for high-power lamps according to any one of claims 1 to 8 are comprised, and part of the lamp body is accommodated in the mounting and fixing groove.

9. A luminaire characterized by, The lamp further comprises a bending prevention ring clamped with the heat sink body.

10. The luminaire of claim 9, wherein, ​

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