Radiator and spotlight

Abstract

The present disclosure relates to the technical field of spotlights, and discloses a heat sink and a spotlight. The heat sink comprises a cylinder, a bearing seat arranged in the cylinder and used for separating an internal space of the cylinder into a first accommodating cavity and a second accommodating cavity along an axial direction of the cylinder, the first accommodating cavity being used for placing a light module and a controller of the spotlight, an end of the bearing seat corresponding to the first accommodating cavity being provided with a first mounting portion used for mounting the light module and a second mounting portion used for mounting the controller, and heat dissipation fins distributed in the second accommodating cavity along a circumferential direction of the cylinder and connected with the cylinder and an end of the bearing seat corresponding to the second accommodating cavity. The light module and the heat dissipation fins can be arranged in the first accommodating cavity and the second accommodating cavity respectively, so that the partitioned layout of the heat generating components and the heat dissipation components and the spatial separation of the heat are realized, and the heat concentration is avoided. The heat dissipation fins are directly connected with the cylinder and the bearing seat, the contact area with the bearing seat and the cylinder is increased, and the heat transfer efficiency is significantly improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of spotlights, and for example to a heat sink and a spotlight. Background Technology

[0002] With the development of lighting technology, spotlights have been widely used in commercial spaces, office environments, and home lighting, where high light quality is required. However, the electrical components of spotlights, such as the light source, generate a lot of heat during operation. If this heat cannot be effectively dissipated in a timely manner, the junction temperature of the light source will rise, leading to accelerated light decay, color temperature drift, shortened lifespan, and even failure of the driver components. Therefore, good heat dissipation performance is crucial to ensuring stable operation and extending the lifespan of spotlights.

[0003] Most spotlight heat sinks in related technologies adopt an integral aluminum profile structure, relying on external heat dissipation fins on the outer shell for natural convection cooling. While this structure possesses some heat dissipation capacity, its heat dissipation path design is unreasonable, concentrating heat in the light source mounting area and making it difficult to quickly conduct heat to the entire heat sink. Moreover, the heat dissipation fins are mostly distributed on the outside, resulting in low heat transfer efficiency between them and the internal heat-generating components, leading to low overall heat dissipation efficiency. Therefore, spotlight heat sinks in related technologies generally suffer from poor heat dissipation and insufficient thermal management capabilities, failing to meet the high-efficiency heat dissipation requirements of high-power, high-density light source modules.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a radiator and spotlight that can achieve partitioned layout of heat-generating and heat-dissipating components and spatial separation of heat, avoiding heat concentration and improving heat transfer efficiency.

[0007] According to a first aspect of this disclosure, a heat sink is provided, comprising: cylindrical body; A support base is disposed inside the cylinder and is used to divide the internal space of the cylinder into a first receiving cavity and a second receiving cavity along its axial direction. The first receiving cavity is used to place the lighting module of the spotlight. The end of the support base corresponding to the first receiving cavity is provided with a first mounting part for installing the lighting module. The heat dissipation fins are distributed circumferentially in the second receiving cavity of the cylinder and are connected to the cylinder and the end of the support corresponding to the second receiving cavity.

[0008] In some embodiments, the first mounting portion includes a first mounting groove and a first threaded hole located at the bottom of the first mounting groove, the first mounting groove being located in the middle region of the carrier.

[0009] In some embodiments, the end of the carrier corresponding to the first receiving cavity is provided with a second mounting portion for mounting the wire clamping block. The second mounting portion is provided with a wire passing hole for the wire harness to pass through, and the wire passing hole penetrates the carrier.

[0010] In some embodiments, the second mounting portion includes a second mounting groove adapted to the mounting pressure block, and a second threaded hole located at the bottom of the second mounting groove, the second mounting groove being adjacent to the first mounting portion.

[0011] In some embodiments, the heat sink includes: a heat-conducting column coaxially connected to the support and located in the second receiving cavity, and each heat sink fin connected to the heat-conducting column.

[0012] In some embodiments, the end of the support corresponding to the first receiving cavity is provided with a third mounting portion for mounting the lampshade module.

[0013] In some embodiments, the third mounting portion includes a third mounting groove and a third threaded hole located at the bottom of the third mounting groove, the third mounting groove being located in the edge region of the carrier.

[0014] In some embodiments, the cylinder body is provided with a chamfered notch in the area corresponding to the third mounting portion.

[0015] According to a second aspect of this disclosure, a spotlight is provided, including a light module and a heat sink provided in the first aspect of this disclosure; the light module is located in a first receiving cavity of the heat sink, and the light module is mounted on a support via a first mounting portion.

[0016] In some embodiments, the spotlight includes a wire clamping block, which is mounted on the support via a second mounting portion; and / or, the spotlight includes a lampshade module, which is mounted on the support via a third mounting portion.

[0017] The heat sink and spotlight provided in this disclosure can achieve the following technical effects: The heat sink provided in this embodiment adopts a combined structure of a cylindrical body and an internal support. The support divides the interior of the cylindrical body axially into a first receiving cavity and a second receiving cavity. The first receiving cavity is used to install the lighting module, which generates a large amount of heat. The heat dissipation fins are concentrated in the second receiving cavity and distributed along the circumference of the cylindrical body. This achieves a partitioned layout and spatial separation of heat generation components (lighting modules) and heat dissipation components (heat dissipation fins), avoiding heat concentration. The heat dissipation fins are directly connected to the cylindrical body and the support, increasing the contact area with the support and the cylindrical body, significantly improving heat transfer efficiency, and helping to efficiently dissipate heat from the lighting module of the spotlight.

[0018] The above general description and the description below are exemplary and illustrative only and are not intended to limit this disclosure. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a schematic diagram of the structure of a heat sink provided in an embodiment of the present disclosure from one view. Figure 2 This is a schematic diagram of the structure of a heat sink provided in an embodiment of this disclosure from another perspective; Figure 3 This is a schematic diagram of the structure of a spotlight provided in an embodiment of this disclosure; Figure 4 This is an exploded view of a spotlight provided in an embodiment of this disclosure; Figure 5 This is an assembly diagram of a heat sink, a lighting module, and a wire clamping block provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of the structure of an anti-glare module provided in an embodiment of this disclosure; Figure 7 This is a schematic diagram of the assembly of an anti-glare module and a honeycomb perforated plate from one viewpoint, according to an embodiment of this disclosure. Figure 8 This is a schematic diagram of the assembly of an anti-glare module and a honeycomb perforated plate from another perspective, according to an embodiment of this disclosure. Figure 9 This is an assembly diagram of a heat sink, an anti-glare module, and a portion of a lighting module provided in an embodiment of this disclosure.

[0020] Explanation of icon numbers: 1. Radiator; 11. Cylinder body, 111. Chamfered notch, 12. Support base, 13. Heat dissipation fins, 14. Heat conduction pillar; 101 First receiving cavity, second receiving cavity; 102, 103 Through holes; 121 First mounting part, 1211 First mounting groove, 1212 First threaded hole; 122 Second mounting part; Second mounting slots 1221, 1222 Second threaded holes; 123 Third mounting part, 1231 Third mounting groove, 1232 Third threaded hole; 2 lighting modules, 201 light output terminal; 3 wire clamping blocks, 4 lampshade modules; 5 anti-glare modules; 501 Light-transmitting hole, 502 Ribbon, 502a First group of Ribbons, 502b Second group of Ribbons; 51 First anti-glare ring, 52 Second anti-glare ring; 6-cell honeycomb plate, 61 micropores. Detailed Implementation

[0021] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0022] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0023] Unless otherwise stated, the term "multiple" means two or more.

[0024] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0025] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0026] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0027] Combination Figures 1 to 5 As shown, this embodiment of the present disclosure provides a radiator 1, which includes a cylindrical body 11, a support base 12, and heat dissipation fins 13. The cylindrical body 11, the support base 12, and the heat dissipation fins 13 can be made of materials with high thermal conductivity, such as aluminum alloy or copper alloy, so as to facilitate the rapid conduction of heat from the inside to the external environment.

[0028] A support 12 is disposed inside the cylinder 11, dividing the internal space of the cylinder 11 axially into a first receiving cavity 101 and a second receiving cavity 102. The first receiving cavity 101 is used to house the lighting module 2 of the spotlight. A first mounting portion 121 for mounting the lighting module 2 is provided at the end of the support 12 corresponding to the first receiving cavity 101. Heat dissipation fins 13 are distributed circumferentially in the second receiving cavity 102. The support 12 divides the internal space of the cylinder 11 into two parts, effectively isolating the heat-generating component (lighting module 2) from the heat-dissipating component (heat dissipation fins 13), preventing excessive heat concentration. The heat dissipation fins 13 are connected to the ends of the cylinder 11 and the support 12 corresponding to the second receiving cavity 102. The heat dissipation fins 13 increase the contact area with air, promoting rapid heat dissipation. Furthermore, the fins are directly connected to the cylinder 11 and the support 12, further enhancing the ability to transfer heat from the high-temperature area and reducing thermal resistance.

[0029] The heat sink 1 provided in this embodiment adopts a combined structure of a cylindrical body 11 and an internal support 12. The support 12 divides the interior of the cylindrical body 11 axially into a first receiving cavity 101 and a second receiving cavity 102. The first receiving cavity 101 is used to install the light module 2, which generates a large amount of heat. The heat dissipation fins 13 are concentrated in the second receiving cavity 102 and distributed circumferentially along the cylindrical body 11. This achieves a partitioned layout and spatial separation of heat generation components (light module 2) and heat dissipation components (heat dissipation fins 13), avoiding heat concentration. The heat dissipation fins 13 are directly connected to the cylindrical body 11 and the support 12, increasing the contact area with the support 12 and the cylindrical body 11, significantly improving heat transfer efficiency, and helping to efficiently dissipate heat from the light module 2 of the spotlight.

[0030] In some embodiments, such as Figure 2 , Figure 4 and Figure 5As shown, the first mounting portion 121 includes a first mounting groove 1211 and a first threaded hole 1212 located at the bottom of the first mounting groove 1211. The first mounting groove 1211 is located in the middle region of the support 12 and has a recessed structure. The light module 2 is located in the first receiving cavity 101 of the heat sink 1 and is embedded in the first mounting groove 1211. The light module 2 is mounted to the support 12 by screws and the first threaded hole 1212. Since the first mounting groove 1211 is located in the middle region of the support 12, this ensures that the light-emitting center of the light module 2 is strictly coaxial with the optical system of the spotlight.

[0031] In some embodiments, such as Figure 2 , Figure 4 and Figure 5 As shown, the end of the support 12 corresponding to the first receiving cavity 101 is provided with a second mounting part 122 for mounting the wire clamping block 3. The second mounting part 122 is provided with a wire passage hole 103 for the wire harness to pass through, and the wire passage hole 103 penetrates the support 12. The external wire harness extends into the first receiving cavity 101 of the cylinder 11 through the wire passage hole 103 to facilitate the connection of the lighting module 2. The wire clamping block 3 is mounted on the support 12 through the second mounting part 122 to apply a stable mechanical clamping force to the wire harness.

[0032] The wire through hole 103 penetrates the support base 12, providing a closed wiring channel for the wire harness from the outside of the spotlight to the internal light source module, avoiding the safety hazards caused by exposed cables. The wire clamping block 3, installed via the second mounting part 122, applies a stable mechanical clamping force to the wire harness entering the first receiving cavity 101, preventing loosening, detachment, or solder joint breakage caused by vibrations during spotlight installation, disassembly, or long-term use. The cooperation between the wire through hole 103 and the wire clamping block 3 also enables centralized management and orderly wiring of the wire harness, avoiding the messiness caused by traditional flying wires, tangles, or tape binding.

[0033] In some embodiments, the second mounting portion 122 includes a second mounting groove 1221 adapted to the pressure block 3, and a second threaded hole 1222 located at the bottom of the second mounting groove 1221, the second mounting groove 1221 being adjacent to the first mounting portion 121. The pressure block 3 is located in the first receiving cavity 101 of the heat sink 1 and is embedded in the second mounting groove 1221, and is mounted to the carrier 12 by screws and the second threaded hole 1222.

[0034] The second mounting groove 1221 is a recessed structure, and its shape matches the outline of the wire clamping block 3. It can achieve circumferential limiting and axial alignment, ensuring that the wire clamping block 3 does not shift or rotate during installation. By placing the second mounting groove 1221 near the first mounting part 121, the light source mounting area and the wire harness fixing area are centrally located, shortening the wiring distance of the power cable from the wire clamping block 3 to the light module 2 and reducing cable redundancy.

[0035] In some embodiments, the end of the support 12 corresponding to the first receiving cavity 101 is provided with a third mounting portion 123 for mounting the lampshade module 4, and the lampshade module 4 is mounted on the support 12 via the third mounting portion 123. The third mounting portion 123 provides a reliable mounting reference for the lampshade module 4, ensuring that it is strictly coaxially aligned with the light-emitting center of the light module 2 after installation.

[0036] In some embodiments, such as Figure 2 , Figure 4 and Figure 9 As shown, the third mounting part 123 includes a third mounting groove 1231 and a third threaded hole 1232 located at the bottom of the third mounting groove 1231. The third mounting groove 1231 is located in the edge region of the support 12. The third mounting groove 1231 is a partially recessed structure, opened in the edge region of the support 12, and its shape is adapted to the shape of the top region of the lampshade module 4 to achieve circumferential positioning and axial limiting. The lampshade module 4 is embedded in the third mounting groove 1231 and locked by screws through the third threaded hole 1232 to achieve high-precision and high-strength assembly and fixation.

[0037] In some embodiments, such as Figure 1 As shown, a chamfered notch 111 is provided in the area of ​​the cylinder 11 corresponding to the third mounting portion 123. The chamfered notch 111 is an arc-shaped notch formed by partially removing the outer peripheral wall of the cylinder 11. Its position corresponds to the third mounting portion 123 in the edge area of ​​the support seat 12. The chamfered notch 111 extends through a portion of the axial length of the cylinder 11, forming an open window structure. The chamfered notch 111 is used to avoid the lampshade module 4, so that the lampshade module 4 can rotate freely and adjust its angle relative to the cylinder 11.

[0038] In some embodiments, such as Figure 1As shown, the radiator 1 includes a heat-conducting column 14, coaxially connected to the support base 12 and located in the second receiving cavity 102. Each heat dissipation fin 13 is connected to the heat-conducting column 14. The heat-conducting column 14 can be made of a high thermal conductivity metal material (such as aluminum alloy, copper, or copper alloy), and can be integrally formed with the support base 12 or firmly connected by pressing, welding, screwing, etc., to ensure good thermal contact. Multiple heat dissipation fins 13 are evenly distributed around the circumference of the cylinder 11 and are directly connected to the heat-conducting column 14. The inner end face of each heat dissipation fin 13 is fixedly connected to the outer circumferential surface of the heat-conducting column 14 (e.g., by casting, extrusion, or machining), forming a continuous heat conduction path. This structure allows the heat generated from the lighting module 2 to be transferred to the heat-conducting column 14 via the support base 12, and then quickly conducted laterally to the root of each heat dissipation fin 13, achieving efficient heat dissipation through convection and radiation between the fin surface and the air.

[0039] Combination Figures 1 to 9 As shown, this embodiment of the present disclosure provides a spotlight, which includes a heat sink 1 and a light module 2. The light module 2 is located in the first receiving cavity 101 of the heat sink 1, and the light module 2 is mounted on the support 12 via a first mounting part 121.

[0040] In some embodiments, such as Figure 2 , Figure 4 and Figure 5 As shown, the first mounting portion 121 includes a first mounting groove 1211 and a first threaded hole 1212 located at the bottom of the first mounting groove 1211. The first mounting groove 1211 is located in the middle region of the support 12 and has a recessed structure. The light module 2 is located in the first receiving cavity 101 of the heat sink 1 and is embedded in the first mounting groove 1211. The light module 2 is mounted to the support 12 by screws and the first threaded hole 1212. Since the first mounting groove 1211 is located in the middle region of the support 12, this ensures that the light-emitting center of the light module 2 is strictly coaxial with the optical system of the spotlight.

[0041] In some embodiments, such as Figure 2 , Figure 4 and Figure 5 As shown, the spotlight includes a wire clamping block 3. The external wire harness extends into the first receiving cavity 101 of the cylinder 11 through the wire hole 103 to facilitate the connection of the light module 2. The wire clamping block 3 is mounted on the support 12 through the second mounting part 122 to apply a stable mechanical clamping force to the wire harness.

[0042] In some embodiments, the second mounting portion 122 includes a second mounting groove 1221 adapted to the pressure block 3, and a second threaded hole 1222 located at the bottom of the second mounting groove 1221, the second mounting groove 1221 being adjacent to the first mounting portion 121. The pressure block 3 is located in the first receiving cavity 101 of the heat sink 1 and is embedded in the second mounting groove 1221, and is mounted to the carrier 12 by screws and the second threaded hole 1222.

[0043] In some embodiments, such as Figure 2 , Figure 4 and Figure 9 As shown, the spotlight includes a lampshade module 4, which is mounted on the support base 12 via a third mounting portion 123. Optionally, the third mounting portion 123 includes a third mounting groove 1231 and a third threaded hole 1232 located at the bottom of the third mounting groove 1231. The third mounting groove 1231 is located in the edge region of the support base 12. The third mounting groove 1231 is a partially recessed structure, formed in the edge region of the support base 12, and its shape is adapted to the shape of the top region of the lampshade module 4, achieving circumferential positioning and axial limiting. The lampshade module 4 is fitted into the third mounting groove 1231 and locked by screws through the third threaded hole 1232, achieving high-precision and high-strength assembly and fixing.

[0044] In some embodiments, such as Figure 2 , Figure 4 , Figure 6 and Figure 9 As shown, the spotlight includes an anti-glare module 5. The light-emitting end 201 of the light module 2 and the anti-glare module 5 are both located inside the lampshade module 4. The anti-glare module 5 is provided with a light-transmitting hole 501 facing the light-emitting end 201 of the light module 2. The light-transmitting hole 501 is provided with a plurality of ribs 502, each rib 502 extending along the axial direction of the light-transmitting hole 501, and the plurality of ribs 502 are circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501.

[0045] The light module 2 emits light outward through its light-emitting end 201. The light enters the light-transmitting hole 501 of the anti-glare module 5. Multiple ribs 502 in the light-transmitting hole 501 refract and block the light. Specifically, after the light emitted from the light-emitting end 201 of the light module 2 enters the light-transmitting hole 501 of the anti-glare module 5, the multiple ribs 502 within the light-transmitting hole 501 effectively block the direct visible image of the light source through multi-angle refraction and blocking, preventing high-brightness light from overflowing at a large angle and entering the human eye, thereby significantly reducing glare intensity and improving visual comfort. Furthermore, the ribs 502 are circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501 and are positioned opposite the light-emitting end 201 of the light module 2. This helps optimize the light distribution, forming a uniform and soft light spot, avoiding uneven edge light spots. This effectively suppresses glare while also improving the overall lighting quality and luminous efficiency of the spotlight.

[0046] In some embodiments, the plurality of light guide ribs 502 include a first group of ribs 502a and a second group of ribs 502b. The first group of ribs 502a and the second group of ribs 502b are spaced apart along the axial direction of the light-transmitting hole 501. Each rib 502 in the first group of ribs 502a is circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501, and each rib 502 in the second group of ribs 502b is circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501.

[0047] In this embodiment, light enters the light-transmitting hole 501 of the anti-glare module 5 and passes sequentially through the first set of prisms 502a and the second set of prisms 502b. When the light passes through the first set of prisms 502a, the first set of prisms 502a performs preliminary refraction and scattering of the light, playing a primary shielding role; when the light passes through the second set of prisms 502b, the second set of prisms 502b further optimizes the light that has already undergone initial modulation, ensuring that the light is softer and more uniform.

[0048] In some embodiments, the diameter of the inscribed circle of the first set of ribs 502a is smaller than the diameter of the inscribed circle of the second set of ribs 502b, wherein the inscribed circles of the first set of ribs 502a and the second set of ribs 502b are coaxial. This means that the effective light-transmitting area enclosed by the first set of ribs 502a is smaller and located on the side of the light-transmitting hole 501 closer to the light module 2 (i.e., the light-incident side), while the second set of ribs 502b is distributed on the side of the light-transmitting hole 501 closer to the light-exiting port, and the diameter of the inscribed circle they enclose is larger, forming a stepped rib distribution structure that gradually expands outward. The two sets of ribs 502 constitute a tapered light-guiding path that gradually expands from the inside out, similar to a gradually expanding optical cavity design. This structure helps guide light to propagate orderly along the main axis, reduces energy loss caused by multiple internal reflections, and improves the effective light extraction rate.

[0049] In some embodiments, the anti-glare module 5 includes a first anti-glare ring 51 and a second anti-glare ring 52, which are coaxial and adjacent to each other. The annular holes of the first anti-glare ring 51 and the second anti-glare ring 52 form a light-transmitting hole 501. The annular hole of the first anti-glare ring 51 is provided with a first set of ribs 502a, and each rib 502 in the first set of ribs 502a is circumferentially spaced along the inner circumferential surface of the annular hole of the first anti-glare ring 51. The annular hole of the second anti-glare ring 52 is provided with a second set of ribs 502b, and each rib 502 in the second set of ribs 502b is circumferentially spaced along the inner circumferential surface of the annular hole of the first anti-glare ring 51.

[0050] The anti-glare module 5 adopts a split design with a first anti-glare ring 51 and a second anti-glare ring 52, which facilitates modular production and flexible assembly. The first anti-glare ring 51 and the second anti-glare ring 52 can be manufactured and molded separately, ensuring the dimensional accuracy and surface finish of the ribs 502. At the same time, the split design facilitates later maintenance or replacement of specific components, such as replacing anti-glare rings with different rib angles or densities according to lighting requirements.

[0051] In some embodiments, the second anti-glare ring 52 is sleeved on the outer periphery of the first anti-glare ring 51 and engages with it. A groove, recess, elastic buckle, or protrusion structure is provided on the outer periphery of the second anti-glare ring 52 to engage with a groove or recess on the inner wall of the first anti-glare ring 51. Alternatively, a barbed claw is provided on the inner side of the second anti-glare ring 52, which is pressed into the corresponding limiting groove of the first anti-glare ring 51 during assembly to achieve self-locking. The engaging structure can complete the alignment and locking of the first anti-glare ring 51 and the second anti-glare ring 52 in a short time, without the need for additional fasteners or curing time, greatly improving assembly efficiency.

[0052] In some embodiments, such as Figure 2 , Figures 4 to 9 As shown, the anti-glare spotlight also includes a honeycomb perforated plate 6. The honeycomb perforated plate 6 includes multiple micro-holes 61, which are typically hexagonal (but can also be circular, square, or polygonal). The honeycomb perforated plate 6 is disposed inside the anti-glare module 5 and perpendicular to the axis of the light-transmitting hole 501. The honeycomb perforated plate 6 can limit the maximum emission angle of light. Each micro-hole 61 only allows light rays with small angles near the main axis to pass through, while light rays with large angle divergence are absorbed or blocked by the hole walls.

[0053] In some embodiments, the honeycomb perforated plate 6 is disposed between the first set of ribs 502a and the second set of ribs 502b. The ribs 502 in the first set of ribs 502a are circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501, and the ribs 502 in the second set of ribs 502b are also circumferentially spaced along the inner circumferential surface of the light-transmitting hole 501. When light passes through the first set of ribs 502a, the first set of ribs 502a performs preliminary refraction and scattering of the light, providing initial shielding. When light passes through the honeycomb perforated plate 6, the honeycomb perforated plate 6 filters the light at different angles, blocking lateral light leakage. When light passes through the second set of ribs 502b, the second set of ribs 502b further optimizes the light that has already undergone initial modulation, ensuring that the light is softer and more uniform.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A radiator, characterized in that, include: cylindrical body; A support base is disposed inside the cylinder and is used to divide the internal space of the cylinder into a first receiving cavity and a second receiving cavity along its axial direction. The first receiving cavity is used to place the lighting module of the spotlight. The end of the support base corresponding to the first receiving cavity is provided with a first mounting part for installing the lighting module. The heat dissipation fins are distributed circumferentially in the second receiving cavity of the cylinder and are connected to the cylinder and the end of the support corresponding to the second receiving cavity.

2. The radiator according to claim 1, characterized in that, The first mounting part includes a first mounting groove and a first threaded hole located at the bottom of the first mounting groove, the first mounting groove being located in the middle region of the bearing seat.

3. The radiator according to claim 1, characterized in that, The bearing seat has a second mounting part for mounting the wire clamping block at the end corresponding to the first receiving cavity. The second mounting part has a wire passing hole for the wire harness to pass through, and the wire passing hole penetrates the bearing seat.

4. The radiator according to claim 3, characterized in that, The second mounting part includes a second mounting groove adapted to the mounting pressure block, and a second threaded hole located at the bottom of the second mounting groove, the second mounting groove being adjacent to the first mounting part.

5. The radiator according to claim 1, characterized in that, The radiator includes: The heat-conducting column is coaxially connected to the support and located in the second receiving cavity, and each heat dissipation fin is connected to the heat-conducting column.

6. The radiator according to claim 1, characterized in that, The end of the support corresponding to the first receiving cavity is provided with a third mounting part for mounting the lampshade module.

7. The radiator according to claim 6, characterized in that, The third mounting part includes a third mounting groove and a third threaded hole located at the bottom of the third mounting groove, which is located in the edge region of the bearing seat.

8. The radiator according to claim 6, characterized in that, The cylinder body has a chamfered notch in the area corresponding to the third mounting section.

9. A spotlight, characterized in that, Includes a lighting module and a heat sink as described in any one of claims 1 to 8; The lighting module is located in the first receiving cavity of the heat sink, and the lighting module is mounted on the support base through the first mounting part.

10. The spotlight according to claim 9, characterized in that, The spotlight includes a wire clamp, which is mounted on the support base via a second mounting part; And / or, the spotlight includes a lampshade module, which is mounted on the carrier via a third mounting part.

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