Light source heat dissipation device and photographic camera lamp

Abstract

The utility model relates to a light source heat abstractor and photography camera lamp belong to photography camera equipment technical field. Light source heat abstractor includes the lamp board, the substrate, the heat pipe and the heat abstractor component, the lamp board has a luminous surface, the substrate sets up in the one side of the lamp board away from the luminous surface, and is pasted with the lamp board, the one side of the substrate away from the lamp board is equipped with the accommodation groove, a plurality of heat pipes set up in the accommodation groove. The heat abstractor component sets up in the one side of the substrate away from the lamp board, and is connected with the substrate and the heat pipe heat, the heat of the lamp board produces and is transferred to the heat abstractor component through the substrate and the heat pipe and carries out the heat dissipation. Its through the combination structure of "the substrate + the heat pipe", can effectively lead out the core heat of COB lamp board under not depending on the heat sink, avoids the heat gathering in the local area of lamp board, remarkably reduces the manufacturing cost under the premise of guaranteeing the heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of photographic and video equipment technology, and in particular to a light source heat dissipation device and a photographic and video light. Background Technology

[0002] With the rapid development of the live streaming industry and video content creation, photography lights, as essential equipment in live streaming studios and shooting locations, are widely used in various scenarios such as portrait live streaming, product demonstrations, and short video shooting. Different application scenarios place higher demands on photography lights in terms of brightness stability, heat control, and product price. Users often hope to obtain reliable and stable photography lights within a limited budget, which poses a challenge to the structural design and cost control capabilities of photography equipment manufacturers.

[0003] Among existing photographic lights, COB light sources are widely used in high-brightness fill lighting scenarios due to their high luminous efficiency and concentrated brightness. However, COB light sources generate a large amount of heat during operation. If this heat cannot be dissipated effectively and in a timely manner, it can easily lead to excessively high local temperatures on the light panel, resulting in accelerated light decay, color temperature drift, and even affecting the lifespan of the light source. Traditional solutions typically use a VC vapor chamber to connect the COB light panel to the heat dissipation component, utilizing the vapor chamber's excellent thermal conductivity and heat dissipation capabilities to evenly transfer heat to the heat dissipation component. However, VC vapor chambers have a complex structure, require high-precision manufacturing processes, and have high material and processing costs, significantly increasing the overall cost of the photographic light. Utility Model Content

[0004] The purpose of this invention is to address the technical problem of providing a photographic and video lamp with low heat dissipation cost and good heat dissipation effect.

[0005] To address the aforementioned technical problems, this application provides a light source heat dissipation device, comprising: a lamp plate having a light-emitting surface; a substrate disposed on the side of the lamp plate away from the light-emitting surface and attached to the lamp plate; a receiving groove formed on the side of the substrate away from the lamp plate; a plurality of heat dissipation pipes arranged side by side in the receiving groove; and a heat dissipation assembly disposed on the side of the substrate away from the lamp plate and thermally connected to the substrate and the heat dissipation pipes; the heat generated by the lamp plate is transferred to the heat dissipation assembly for heat dissipation via the substrate and the heat dissipation pipes.

[0006] In some embodiments of this application, the substrate is an aluminum plate; the heat dissipation pipe is a copper pipe.

[0007] In some embodiments of this application, the heat dissipation pipe extends along the length of the receiving groove and exceeds the projection boundary of the lamp panel on the substrate, so that both ends of the heat dissipation pipe are flush with the boundary of the substrate; a plurality of heat dissipation pipes are arranged side by side along the width of the receiving groove; the upper and lower sides of the heat dissipation pipes abut against the bottom wall of the receiving groove and the heat dissipation assembly, respectively.

[0008] In some embodiments of this application, the heat dissipation pipe is provided with a closed sealing cavity, the sealing cavity extends along the axial direction of the heat dissipation pipe, and the sealing cavity is provided with a liquid working fluid.

[0009] In some embodiments of this application, the heat dissipation assembly includes a fin group and a cooling fan; the fin group has a plurality of spaced-apart heat dissipation air ducts; the cooling fan is disposed on the side of the fin group away from the substrate and is used to generate airflow.

[0010] This application also provides a photographic and video lighting device, comprising: a lamp housing having a light outlet; a light source heat dissipation device as described above, which is disposed inside the lamp housing and with the light-emitting surface of the lamp panel facing the light outlet; and a reflector detachably connected to the light outlet of the lamp housing.

[0011] In some embodiments of this application, the photographic and video lighting also includes a module bracket, which is disposed inside the lamp housing; the module bracket includes a support and a connecting rod, and the support is provided with a mounting cavity for installing a power supply; one end of the connecting rod is fixedly connected to the support, and the other end is fixedly connected to the heat dissipation component of the light source heat dissipation device, so that a gap space is formed between the support and the heat dissipation component.

[0012] In some embodiments of this application, the lamp housing includes a body, a front cover, and a rear cover; the body is a hollow structure with openings at both ends, and the body is provided with a plurality of heat dissipation holes; the front cover is detachably connected to one end opening of the body, and the light outlet is disposed on the front cover; the rear cover is disposed at the other end opening of the body, and the rear cover is provided with a handle for gripping.

[0013] In some embodiments of this application, the photographic and video lighting lamp further includes a bayonet and a chuck; the bayonet is disposed on the light outlet side of the lamp housing; the chuck is fixedly disposed on the reflector; the chuck can be rotatably inserted into the bayonet, so that the reflector and the lamp housing are detachably connected.

[0014] In some embodiments of this application, the photographic and video lighting also includes a support frame, which includes connecting arms and docking portions; the connecting arms are disposed on both sides of the lamp housing and connected to the lamp housing; the docking portions are disposed at the bottom of the connecting arms and are used for docking and connecting with an external support device.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This application provides a light source heat dissipation device and a photographic / video lamp. The light source heat dissipation device has a substrate attached to the side of the lamp board opposite to the light-emitting surface. A receiving groove is formed on the back of the substrate to accommodate multiple heat dissipation pipes, allowing the heat generated by the lamp board to be quickly conducted away from the substrate and heat dissipation pipes simultaneously and transferred to a heat dissipation assembly for cooling. Compared to existing heat dissipation methods that connect the lamp board and heat dissipation assembly via a VC vapor chamber, this application, through a combination structure of "substrate + heat dissipation pipes," effectively dissipates the core heat of the COB lamp board without relying on a vapor chamber, preventing heat accumulation in localized areas of the lamp board. This improves the uniformity of the overall temperature distribution of the lamp board and reduces the impact of high temperatures on the luminous efficiency and lifespan of the light source. Furthermore, this structure is simple and has low processing costs, significantly reducing manufacturing costs while ensuring effective heat dissipation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a photography and video lighting device.

[0017] Figure 2 for Figure 1 A cross-sectional view of a camera light.

[0018] Figure 3 for Figure 1 A schematic diagram of the exploded structure of a camera light.

[0019] Figure 4 for Figure 3 A three-dimensional structural diagram of the heat dissipation device for the light source.

[0020] Figure 5 for Figure 4 A cross-sectional view of the heat dissipation device for the central light source.

[0021] Figure 6 for Figure 4 Exploded view of the heat dissipation device for the light source.

[0022] Figure 7 yes Figure 4 A top view of the lamp plate and heat dissipation pipe of the heat dissipation device for the light source.

[0023] Figure 8 yes Figure 4 A bottom view of the substrate and heat dissipation pipes of the heat dissipation device for the light source.

[0024] The annotations in the attached figures are explained as follows: 100. Photography and video lighting; 10. Lamp housing; 11. Housing body; 111. Heat dissipation holes; 12. Front cover; 121. Light outlet; 13. Rear cover; 131. Handle; 20. Light source heat dissipation device; 21. Lamp board; 211. COB light source; 22. Substrate; 221. Receiving groove; 23. Heat dissipation pipe; 24. Heat dissipation assembly; 241. Fin assembly; 242. Cooling fan; 30. Reflector; 31. Chuck; 40. Module bracket; 41. Support; 411. Mounting cavity; 42. Connecting rod; 43. Spacing; 50. Bayonet; 60. Support frame; 61. Connecting arm; 62. Connecting part. Detailed Implementation

[0025] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0026] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Please see Figures 1 to 8 This embodiment provides a photographic and video lighting lamp 100, which includes a lamp housing 10, a light source heat dissipation device 20, and a reflector 30.

[0029] The lamp housing 10 has an internal space to accommodate various functional components, and one end has a light outlet 121 for outputting illumination light generated by the light source. A heat dissipation device 20 for the light source is located inside the lamp housing 10, near the light outlet 121, to ensure that the light emitted from the heat dissipation device 20 is emitted in a predetermined direction. A reflector 30 is located at the light outlet 121 of the lamp housing 10. The reflector 30 is detachably connected to the lamp housing 10, allowing it to be replaced or removed according to different shooting needs. The reflector 30 is used to reflect and shape the light emitted from the light outlet 121 to change the beam angle or spot shape, thereby meeting the lighting requirements of different photographic and video shooting scenarios.

[0030] Please see Figures 3 to 6 In this embodiment, the heat dissipation device 20 for the light source includes a lamp plate 21, a substrate 22, a heat dissipation pipe 23, and a heat dissipation component 24.

[0031] The lamp panel 21 has a light-emitting surface; a substrate 22 is disposed on the side of the lamp panel 21 away from the light-emitting surface and is attached to the lamp panel 21, and a receiving groove 221 is formed on the side of the substrate 22 away from the lamp panel 21. Multiple heat dissipation pipes 23 are disposed within the receiving groove 221 and are distributed relative to the area of ​​the lamp panel 21. A heat dissipation assembly 24 is disposed on the side of the substrate 22 away from the lamp panel 21 and is thermally connected to the substrate 22 and the heat dissipation pipes 23; the heat generated by the lamp panel 21 is transferred to the heat dissipation assembly 24 via the substrate 22 and the heat dissipation pipes 23 for heat dissipation.

[0032] Specifically, the light panel 21 serves as the light source carrier, and a COB light source 211 is mounted on it to form a light-emitting surface for outputting photographic light. During operation, the light panel 21 continuously generates heat. A substrate 22 is positioned on the side of the light panel 21 away from the light-emitting surface and is attached to the light panel 21, allowing the heat generated by the light panel 21 to be conducted through the substrate 22 first. The substrate 22 can be made of metal sheet, and its overall structure is relatively simple. A receiving groove 221 is formed on the side of the substrate 22 away from the light panel 21, and multiple heat dissipation pipes 23 are disposed within the receiving groove 221, distributed accordingly to the COB light source 211 area of ​​the light panel 21, ensuring that the heat dissipation pipes 23 are close to the main heat source area on the light panel 21.

[0033] By providing a receiving groove 221 and embedding a heat dissipation pipe 23 in a localized area of ​​the substrate 22, the heat generated by the lamp board 21 can not only diffuse along the substrate 22, but also be quickly absorbed by the heat dissipation pipe 23 and conducted to the heat dissipation assembly 24. This avoids heat concentration in a localized area of ​​the lamp board 21, thereby improving the overall temperature distribution uniformity of the lamp board 21. The heat generated by the COB light source 211 is transferred from the lamp board 21 to the substrate 22, then through the heat dissipation pipe 23, and finally to the heat dissipation assembly 24, where it diffuses and is released to the external environment. Effective heat dissipation of the COB light source 211 can be achieved without relying on high-cost structures such as heat spreaders, reducing overall structural complexity and manufacturing costs while ensuring heat dissipation performance.

[0034] In some embodiments, the substrate 22 is an aluminum plate. Aluminum has a relatively high thermal conductivity, allowing it to diffuse the heat generated by the lamp panel 21 within the substrate 22 during operation, thereby reducing the localized temperature rise in the area where the lamp panel 21 and substrate 22 are in contact. Simultaneously, aluminum plates have good processing performance, easily forming a receiving groove 221 on the side facing away from the lamp panel 21 through milling, stamping, or extrusion processes for embedding the heat dissipation pipe 23. Compared to heat dissipation solutions with complex structures and high manufacturing costs, such as heat spreaders, using an aluminum plate as the substrate 22 effectively reduces material and processing costs while ensuring good thermal conductivity.

[0035] Please see Figure 6 In some embodiments, the heat dissipation pipe 23 extends along the length of the receiving groove 221, and multiple heat dissipation pipes 23 are arranged side by side along the width of the receiving groove 221; the two sides of the heat dissipation pipe 23 abut against the bottom wall of the receiving groove 221 and the heat dissipation assembly 24, respectively.

[0036] Specifically, the receiving groove 221 is disposed on the side of the substrate 22 away from the lamp panel 21. The receiving groove 221 extends along the length of the substrate 22, so that the receiving groove 221 can cover the core heat source position of the lamp panel 21, thereby providing the heat dissipation pipe 23 with installation space close to the heat source, which is conducive to quickly absorbing and dissipating the heat generated by the lamp panel 21.

[0037] The heat dissipation pipe 23 is embedded in the receiving groove 221, with one side of the heat dissipation pipe 23 abutting against the bottom wall of the receiving groove 221 and the other side abutting against the heat dissipation component 24 disposed on the side of the substrate 22 opposite to the lamp panel 21, thereby forming a continuous heat conduction path between the heat dissipation pipe 23, the substrate 22, and the heat dissipation component 24. This allows the heat dissipation pipe 23 to exchange heat between the two sides of the substrate 22 and the heat dissipation component 24, so that heat is conducted from the lamp panel 21 through the substrate 22 to the heat dissipation pipe 23, and then further efficiently transferred to the heat dissipation component 24 and released into the external environment, thereby improving the overall heat dissipation efficiency and improving the uniformity of the temperature distribution of the lamp panel 21.

[0038] Please see Figure 5 and Figure 6 In some embodiments, the heat sink 23 is a copper pipe. The heat sink 23 has a closed sealing cavity that extends along the axial direction of the heat sink and contains a liquid working fluid.

[0039] Specifically, the copper tube is flat and tubular, with its axial direction aligned with the extension direction of the receiving groove 221. The external dimensions of the copper tube match the receiving groove 221 to facilitate installation and to form reliable surface or line contact with the bottom wall of the receiving groove 221 and the heat dissipation assembly 24. Furthermore, copper itself has a high thermal conductivity, enabling it to absorb and conduct heat transferred from the substrate 22 more quickly, thereby improving the efficiency of heat transfer from the lamp panel 21 to the heat dissipation assembly 24.

[0040] The light source heat dissipation device 20 forms a composite heat dissipation structure of "high thermal conductivity copper pipe + lightweight aluminum substrate 22" between the copper pipe and the aluminum substrate 22. The aluminum substrate 22 is responsible for in-plane diffusion of heat generated by the lamp board 21, while the copper pipe is responsible for rapidly conducting concentrated heat along the axial direction and transferring it to the heat dissipation component 24. Through the synergistic cooperation of the two materials in terms of thermal conductivity and structural cost, efficient heat dissipation of the light source can be achieved without using high-cost heat dissipation structures such as heat spreaders. This ensures good heat dissipation effect while taking into account manufacturing costs, thereby improving the overall performance of the light source heat dissipation device 20.

[0041] In some embodiments, the two ends of the copper tube are closed to form a sealed cavity, which is a vacuum chamber filled with a certain amount of liquid working medium, such as deionized water, acetone or ammonia.

[0042] Please refer to further information. Figure 7 and Figure 8 Multiple copper heat dissipation pipes 23 are arranged side by side. The heat dissipation pipes 23 extend along the length of the receiving groove 221, and the two ends of the heat dissipation pipes 23 extend beyond the projection boundary of the lamp board 21 on the substrate 22, so that the two ends of the heat dissipation pipes 23 are flush with the boundary of the substrate 22.

[0043] When the camera light 100 is working, the high-density heat generated by the light panel 21 is transferred to the substrate 22 directly below it and to the multiple heat dissipation pipes 23 sandwiched between the substrate 22 and the heat dissipation assembly 24. The middle section of these heat dissipation pipes 23 becomes the main evaporation section, where the liquid working fluid inside the pipes rapidly absorbs the heat generated in the central area of ​​the light panel 21 and vaporizes, generating high-temperature, high-pressure steam. Driven by pressure, the generated steam flows rapidly to both ends of the heat dissipation pipes 23, quickly and evenly "pumping" the heat generated by the COB light source 211 in the central area of ​​the light panel 21 along the axial direction of each heat dissipation pipe 23 to both ends of the axial direction of the heat dissipation pipe 23 (condensation section), and releasing the heat carried to the heat dissipation assembly 24 to condense back into liquid.

[0044] The condensed liquid working fluid, relying on the capillary pumping force generated by the capillary structure of the inner wall of the heat dissipation pipe 23, flows back from both ends of the heat dissipation pipe 23 to the central heat source area, thus replenishing the evaporation section of the heat dissipation pipe 23. At the same time, some of the heat in the middle section of these heat dissipation pipes 23 is transferred to the heat dissipation assembly 24 through the copper tube outer wall of the heat dissipation pipe 23, and then transferred to the outside along the longitudinal direction (perpendicular to the lamp panel 21).

[0045] Therefore, this embodiment uses a combination of horizontal rapid heat conduction by multiple heat pipes 23 laid side by side and vertical heat conduction by heat dissipation components 24 to improve heat dissipation efficiency, avoid heat accumulation at the center of the heat source, reduce the impact of high heat on the performance of the light-emitting chip and phosphor of the COB light source 211, and make the color rendering index and color temperature output of the photography and video lights more stable.

[0046] Please see Figures 4 to 6 In some embodiments, the heat dissipation assembly 24 includes a fin group 241 and a cooling fan 242. The fin group 241 has a plurality of spaced-apart heat dissipation channels; the cooling fan 242 is disposed on the side of the fin group 241 away from the substrate 22 to generate airflow.

[0047] Specifically, the fin assembly 241 is formed by multiple heat dissipation fins arranged at intervals along a predetermined direction. Adjacent fins are spaced apart to form heat dissipation channels, making the fin assembly 241 a three-dimensional heat dissipation structure with a large heat exchange area. A cooling fan 242 is located on the side of the fin assembly 241 facing away from the substrate 22. In operation, it generates airflow, allowing air to pass through the fin assembly 241 along the heat dissipation channels. As the airflow flows over the surface of each heat dissipation fin, it continuously carries away the heat accumulated on the fins, thereby accelerating the convective heat dissipation process of the fin assembly 241 and further improving the heat dissipation performance of the light source heat dissipation device 20 under high power and long-term operating conditions.

[0048] Please see Figure 3 In some embodiments, the lamp housing 10 of the camera lamp 100 includes a body 11, a front cover 12, and a rear cover 13. The body 11 is a hollow structure with openings at both ends, and has multiple heat dissipation holes 111. The front cover 12 is detachably connected to one end opening of the body 11, and a light outlet 121 is provided on the front cover 12. The rear cover 13 is provided at the other end opening of the body 11, and has a handle 131 for gripping.

[0049] Specifically, the housing 11 is a hollow structure with openings at both ends, used to house the light source heat dissipation device 20 and the power control components. Multiple heat dissipation holes 111 are provided on the side walls of the housing 11. These holes 111 communicate with the internal space of the lamp housing 10, allowing hot air generated by the light source heat dissipation component 24 to be exhausted through them. Simultaneously, external cool air can enter the lamp housing 10 through the heat dissipation holes 111, thus forming an air convection channel and, in conjunction with the cooling fan 242, improving the overall heat dissipation effect of the lamp.

[0050] The front cover 12 is detachably connected to the front opening of the housing 11, and the light outlet 121 is located on the front cover 12. The detachable snap-fit ​​connection structure allows the front cover 12 to be quickly assembled or disassembled, facilitating the replacement of accessories such as reflectors 30 and diffusers of different specifications or optical effects. It also facilitates the maintenance or cleaning of the light source components inside the lamp housing 10, improving the overall flexibility and ease of maintenance of the lamp.

[0051] The back cover 13 is located at the rear opening of the housing 11, and a handle 131 is provided on the back cover 13 for gripping, so that users can easily apply force when moving, installing or adjusting the position of the camera light 100, reducing the difficulty of operation, especially suitable for usage scenarios that require frequent movement or adjustment of shooting angle. At the same time, the handle 131 is integrated with the back cover 13, which also avoids taking up extra space.

[0052] Please see Figure 3 In some embodiments, the camera light 100 further includes a module bracket 40. The module bracket 40 is disposed within the lamp housing 10. The module bracket 40 includes a support 41 and a connecting rod 42. The support 41 is provided with a mounting cavity 411 for installing a power supply. One end of the connecting rod 42 is fixedly connected to the support 41, and the other end is fixedly connected to the heat dissipation component 24 of the light source heat dissipation device 20, so that a gap space 43 is formed between the support 41 and the heat dissipation component 24.

[0053] Specifically, the module bracket 40 is the supporting structure for the internal functional modules, used for installing and positioning the power supply and light source heat dissipation device 20. The module bracket 40 includes a support 41 and a connecting rod 42. The support 41 is a block-shaped or frame-shaped structure, and its interior forms a mounting cavity 411 for installing the power supply. The power supply can be accommodated and fixed in the mounting cavity 411, thereby realizing the modular installation of the power supply in the lamp housing 10.

[0054] Four connecting rods 42 are provided. One end of each connecting rod 42 is fixedly connected to the support 41, and the other end is fixedly connected to the cooling fan 242 of the light source heat dissipation device 20. This allows the support 41 to be suspended to one side of the cooling fan 242 via the connecting rods 42, and a preset gap space 43 is formed between the support 41 and the cooling fan 242. The gap space 43 is not occupied by any solid structure, thus creating an air circulation area inside the lamp housing 10. This effectively prevents the heat dissipation path of the cooling fan 242 and the power supply from being blocked.

[0055] Furthermore, the heat dissipation holes 111 on the lamp housing 10 are interconnected with the partition space 43, allowing external air to enter the lamp housing 10 through the heat dissipation holes 111 and form a flowing airflow within the partition space 43. This airflow then flows over the surface of the heat dissipation component 24 and carries away heat. The module bracket 40, through the partition space 43 formed between the support 41 and the cooling fan 242, not only isolates the power supply from the high-temperature heat dissipation component 24 but also provides a continuous airflow channel inside the lamp housing 10. Combined with the heat dissipation holes 111 on the lamp housing 10, this effectively enhances the convective heat dissipation effect inside the lamp body, thereby improving the heat dissipation performance and overall reliability of the photography and videography light 100 during long-term operation.

[0056] Please see Figure 3 In some embodiments, the camera light 100 further includes a bayonet 50 and a chuck 31. The bayonet 50 is disposed on one side of the light outlet 121 of the lamp housing 10; the chuck 31 is fixedly disposed on the reflector 30; the chuck 31 can be rotatably inserted into the bayonet 50 so that the reflector 30 and the lamp housing 10 are detachably connected.

[0057] Specifically, the bayonet 50 is fixedly mounted on the end face of the lamp housing 10 near the light outlet 121 by screws. It is ring-shaped, and the end face of the bayonet 50 facing the reflector 30 has several engaging parts. These engaging parts are distributed circumferentially and form engaging channels for the chuck 31 to enter and lock. The chuck 31 is fixedly mounted on the end of the reflector 30. The chuck 31 is also ring-shaped, with lugs on its outer periphery that mate with the engaging parts of the bayonet 50. When the chuck 31 is axially inserted into the bayonet 50, it can engage with the engaging parts of the bayonet 50 through rotation, thereby achieving a detachable connection between the reflector 30 and the lamp housing 10.

[0058] Please see Figures 1 to 3 In some embodiments, the camera light 100 further includes a support frame 60. The support frame 60 includes connecting arms 61 and docking portions 62; the connecting arms 61 are disposed on both sides of the lamp housing 10 and connected to the lamp housing 10. The docking portions 62 are disposed at the bottom of the connecting arms 61 and are used for docking and connecting with an external support device.

[0059] Specifically, the support frame 60 includes symmetrically arranged connecting arms 61 and a mating portion 62 at the bottom of the connecting arms 61. The connecting arms 61 on both sides extend along the side wall of the lamp housing 10 and are fixedly connected to the opposite sides of the lamp housing 10, so that the lamp housing 10 is located in the middle of the U-shaped connecting arms 61, thereby forming a stable clamping structure for the lamp body. Designing the connecting arms 61 as a U-shaped frame not only provides good support and limitation for the lamp housing 10, but also facilitates the angle adjustment of the lamp body of the photography and videography light 100 around the connection position of the connecting arms 61 to meet the usage requirements under different shooting angles.

[0060] A docking part 62 is located at the bottom of the U-shaped connecting arm 61. The docking part 62 can be a plug-in shaft, plug rod, or other docking structure, used for quick docking with the support rod assembly in the external support device. The docking part 62 can be directly inserted into or snapped onto the corresponding interface of the external support rod assembly, thereby realizing the quick installation and disassembly of the camera light 100 with the tripod, light stand, or other support equipment. This significantly improves installation efficiency and ease of use while ensuring the overall structural stability of the camera light 100, facilitating quick switching and deployment in different shooting scenarios.

[0061] In summary, this embodiment provides a light source heat dissipation device 20 and a photographic / video lighting lamp 100. The light source heat dissipation device 20 has a lamp plate 21 with a substrate 22 attached to it on the side opposite to the light-emitting surface. A receiving groove 221 is formed on the back of the substrate 22 to accommodate multiple heat dissipation pipes 23, allowing the heat generated by the lamp plate 21 to be quickly conducted and transferred to the heat dissipation assembly 24 via both the substrate 22 and the heat dissipation pipes 23. Compared to existing heat dissipation methods that connect the lamp plate 21 and the heat dissipation assembly 24 using a VC vapor chamber, this embodiment, through the combination structure of "substrate 22 + heat dissipation pipes 23," effectively dissipates the core heat of the COB lamp plate 21 without relying on a vapor chamber, preventing heat accumulation in localized areas of the lamp plate 21. This improves the overall temperature distribution consistency of the lamp plate 21 and reduces the impact of high temperatures on the light source's luminous efficiency and lifespan. Furthermore, this structure is simple and has low processing costs, significantly reducing manufacturing costs while ensuring heat dissipation performance, which is beneficial for its widespread application in cost-sensitive fields such as photographic and live-streaming lights.

[0062] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A heat dissipation device for a light source, characterized in that, include: A light panel, which has a light-emitting surface; A substrate is disposed on the side of the lamp panel opposite to the light-emitting surface and is attached to the lamp panel; The substrate has a receiving groove on the side opposite to the lamp panel; Multiple heat dissipation pipes are arranged side by side in the receiving groove; A heat dissipation assembly is disposed on the side of the substrate away from the lamp panel and is thermally connected to the substrate and the heat dissipation pipe; the heat generated by the lamp panel is transferred to the heat dissipation assembly for heat dissipation via the substrate and the heat dissipation pipe.

2. The heat dissipation device for the light source according to claim 1, characterized in that, The substrate is an aluminum plate; the heat dissipation pipe is a copper pipe.

3. The heat dissipation device for the light source according to claim 1, characterized in that, The heat dissipation pipe extends along the length of the receiving groove and exceeds the projection boundary of the lamp panel on the substrate, so that both ends of the heat dissipation pipe are flush with the boundary of the substrate; a plurality of heat dissipation pipes are arranged side by side along the width of the receiving groove; the upper and lower sides of the heat dissipation pipes abut against the bottom wall of the receiving groove and the heat dissipation assembly, respectively.

4. The light source heat dissipation device according to claim 1, characterized in that, The heat dissipation pipe has a closed sealing cavity that extends along the axial direction of the heat dissipation pipe and contains a liquid working fluid.

5. The heat dissipation device for the light source according to claim 1, characterized in that, The heat dissipation assembly includes a fin group and a cooling fan; the fin group has multiple spaced-apart heat dissipation air ducts; the cooling fan is located on the side of the fin group away from the substrate and is used to generate airflow.

6. A photographic / video lighting device, characterized in that, include: The lamp housing has a light outlet; The light source heat dissipation device as described in any one of claims 1-5 is disposed inside the lamp housing and the light-emitting surface of the lamp plate is positioned facing the light-emitting port; The reflector is detachably attached to the light outlet of the lamp housing.

7. The photographic / video lighting according to claim 6, characterized in that, The photographic and video lighting also includes a module bracket, which is disposed inside the lamp housing; the module bracket includes a support and a connecting rod, and the support has a mounting cavity for installing a power supply; one end of the connecting rod is fixedly connected to the support, and the other end is fixedly connected to the heat dissipation component of the light source heat dissipation device, so that a gap space is formed between the support and the heat dissipation component.

8. The photographic and video lighting according to claim 6, characterized in that, The lamp housing includes a body, a front cover, and a rear cover; the body is a hollow structure with openings at both ends, and has multiple heat dissipation holes; the front cover is detachably connected to one end opening of the body, and the light outlet is located on the front cover; the rear cover is located at the other end opening of the body, and has a handle for gripping.

9. The photographic and video lighting according to claim 6, characterized in that, The photographic and video lighting also includes a bayonet and a chuck; the bayonet is disposed on the light outlet side of the lamp housing; the chuck is fixedly disposed on the reflector; the chuck can be rotatably inserted into the bayonet, so that the reflector and the lamp housing are detachably connected.

10. The photographic and video lighting according to claim 6, characterized in that, The photographic and video lighting also includes a support frame, which includes connecting arms and docking parts; the connecting arms are disposed on both sides of the lamp housing and connected to the lamp housing; the docking parts are disposed at the bottom of the connecting arms and are used for docking and connecting with an external support device.

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