Film and television lamp and lighting system

Abstract

The utility model provides a film and television lamp and lighting system, it includes light source subassembly, shell and heat dissipation channel, light source subassembly includes LED light source and circuit board, LED light source is provided on the circuit board, LED light source is used for emitting light; a containing cavity is formed in the shell, the light source assembly is arranged in the containing cavity, the shell comprises a top face and a bottom face which are oppositely arranged up and down, a front face and a back face which are oppositely arranged front and back, and a first side face and a second side face which are oppositely arranged left and right, and the top face seals the top of the shell; the heat dissipation channel comprises at least one air outlet formed in the first side face and the second side face and at least one air inlet formed in the bottom face, the back face and the first side face or the second side face without the air outlet, the air inlets and the air outlets are communicated with the containing cavity, and external air enters the containing cavity through the air inlets and flows out of the containing cavity through the air outlets. The utility model aims to improve the heat dissipation reliability and efficiency of the film and television lamp.

Description

Technical Field

[0001] This utility model relates to the technical field of photographic auxiliary equipment, and in particular to a film and television light and lighting system. Background Technology

[0002] In film and television shooting, high-power lighting systems are often required. Because these systems produce a lot of light, they also generate a significant amount of heat. Therefore, heat dissipation devices are typically installed inside the lighting lights to prevent damage to internal components due to overheating. Current high-power film and television lights usually have built-in fans for cooling, and ventilation holes on the top of the light's casing allow hot air to escape. However, in rainy or snowy weather, rainwater or snowflakes can easily enter the light through these ventilation holes, causing short circuits or damage to internal components. Furthermore, moisture can condense at the ventilation holes, blocking the heat dissipation channels and significantly reducing the light's cooling efficiency. Utility Model Content

[0003] The purpose of this invention is to improve the reliability and efficiency of heat dissipation in film and television lights.

[0004] To solve the above-mentioned technical problems, this utility model provides a film and television light, comprising:

[0005] A light source assembly includes an LED light source and a circuit board, wherein the LED light source is disposed on the circuit board and is used to emit light;

[0006] The housing has an internal cavity, in which the light source assembly is disposed. The housing includes a top surface and a bottom surface arranged vertically opposite each other, a front surface and a back surface arranged front to back, and a first side surface and a second side surface arranged left to right. The top surface seals the top of the housing.

[0007] The heat dissipation channel includes at least one air outlet on the first side and the second side, and at least one air inlet on the bottom surface, the back surface, or the first side or the second side without the air outlet. Both the air inlet and the air outlet are connected to the receiving cavity. External air enters the receiving cavity through the air inlet and flows out of the receiving cavity through the air outlet.

[0008] Optionally, a plurality of first through holes are provided on the bottom sidewall of the housing to form the air inlet, and a plurality of second through holes are provided on the first side and the second side to form the air outlet.

[0009] Optionally, the film and television light also includes a heat dissipation system, which includes a fan. Two fans are arranged opposite each other in the housing cavity. One fan is arranged near the first side and the other fan is arranged near the second side. The fans are used to draw external air into the housing cavity through the air inlet, so that the air flows through the light source assembly, and blow the air in the housing cavity out of the housing cavity through the air outlet.

[0010] Optionally, the heat dissipation system further includes a liquid cooling component disposed within the receiving cavity. The liquid cooling component includes a cooling pipe and a drive pump. Coolant flows through the cooling pipe, and the drive pump is connected to the cooling pipe. The drive pump drives the coolant to flow within the cooling pipe, and the light source component is disposed close to the cooling pipe, so that the coolant absorbs the heat generated by the light source component.

[0011] Optionally, the liquid cooling assembly further includes liquid-cooled fins disposed within the receiving cavity. The liquid-cooled fins include a housing, a liquid flow channel, and a ventilation channel. The liquid flow channel is disposed inside the housing, and its two ends are connected to the drive pump via the cooling pipes, allowing the coolant to circulate between the drive pump, the cooling pipes, and the liquid flow channel. The drive pump drives the coolant to flow within the cooling pipes to absorb heat from the light source assembly and to flow into the liquid channel. The ventilation channel is disposed within the receiving cavity and is positioned relative to the liquid flow channel. The fan guides air within the receiving cavity through the ventilation channel to exchange heat with the coolant within the liquid channel.

[0012] Optionally, the liquid-cooled fin component further includes a flow channel plate and a ventilation plate. The ventilation plate is disposed on the surface of the flow channel plate. The flow channel plate is disposed inside the housing in the vertical direction. The liquid flow channel is disposed along the extension direction of the flow channel plate. The ventilation plate is provided with a plurality of ventilation slots to form the ventilation passage. The extension direction of the ventilation slots intersects with the extension direction of the flow channel plate.

[0013] Optionally, the liquid cooling assembly further includes a heat-conducting element, the light source assembly is disposed on the heat-conducting element, the heat-conducting element is disposed in the receiving cavity, the heat-conducting element has a heat-conducting cavity inside, the cooling pipe connects the drive pump and the heat-conducting element so that the coolant flows through the heat-conducting cavity, and the heat-conducting element and the liquid cooling fin are connected through the cooling pipe so that the coolant flows from the heat-conducting cavity to the liquid flow channel.

[0014] Optionally, two liquid-cooled fins are provided in the receiving cavity. One liquid-cooled fin is located near the first side, and the other liquid-cooled fin is located near the second side, so that each ventilation channel can be arranged opposite to an air outlet. Each liquid-cooled fin is provided with a fan opposite to it. One liquid-cooled fin is connected to the heat-conducting element through a cooling pipe, and the other liquid-cooled fin is connected to the drive pump through the cooling pipe. The two liquid-cooled fins are connected through the cooling pipe, so that the coolant circulates sequentially in the heat-conducting element, one liquid-cooled fin, the other liquid-cooled fin, and the drive pump under the drive pump.

[0015] Optionally, the film and television light also includes a mounting bracket, which is disposed within the receiving cavity and connected to the inner wall of the housing. The liquid-cooled fins are fixed within the mounting bracket, the drive pump is disposed on the bottom surface of the mounting bracket, and the light source assembly is fixed to the side of the mounting bracket near the front.

[0016] Optionally, the area occupied by the plurality of second through holes on the first side of the housing sidewall is larger than the size of the fan, so that external air can enter the receiving cavity through part of the second through holes.

[0017] This application also proposes a lighting system, including:

[0018] The aforementioned film and television lights;

[0019] The lamp holder includes a holder body and mounting arms. Each mounting arm is provided on a opposite side of the holder body and is rotatably connected to the film and television lamp to support the film and television lamp.

[0020] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: The film and television lamp includes a housing, with a top and bottom surface arranged vertically opposite each other, a front and back surface arranged front and back opposite each other, and a first and second side surface arranged left and right opposite each other. By providing at least one air inlet on the bottom surface, back surface, first and second side surfaces of the housing, and providing an air outlet on the side of the first and second side surfaces without an air inlet, air from outside the housing can enter the receiving cavity through the air inlets located on the periphery or bottom surface of the housing to absorb the heat generated by the light source assembly, and then flow out of the receiving cavity from the air outlet, thus completing the heat dissipation of the light source assembly. The top surface is used to seal the top surface of the housing, and no air inlet or outlet is provided, so that in cold or snowy weather, rainwater or snowflakes are less likely to fall from the top surface of the housing into the film and television lamp and damage it, thereby improving the operational stability and heat dissipation reliability of the film and television lamp. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of the film and television light proposed in this application;

[0022] Figure 2 yes Figure 1 Top view of a film and television light;

[0023] Figure 3 yes Figure 1 A bottom view of a film and television light;

[0024] Figure 4 yes Figure 1 Rear view of the film and television lights;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the mounting bracket and heat dissipation system in this embodiment;

[0026] Figure 6 This is a schematic diagram of the assembly structure of the liquid-cooled finned component and the fan in this embodiment;

[0027] Figure 7 This is a schematic diagram of the liquid-cooled finned component and the fan in this embodiment;

[0028] Figure 8 yes Figure 7 A schematic diagram of the overall structure of the liquid-cooled finned component;

[0029] Figure 9 yes Figure 8 Sectional view at point AA;

[0030] Figure 10 yes Figure 9 Enlarged schematic diagram of the structure at point A;

[0031] Figure 11 yes Figure 10 A schematic diagram of the flow channel plate;

[0032] Figure 12 yes Figure 10 A schematic diagram of the ventilation panel;

[0033] Figure 13 yes Figure 8 A partial exploded schematic diagram of the upper manifold, ventilation plate, and flow channel plate;

[0034] Figure 14 This is a schematic diagram of the lighting system proposed in this application;

[0035] Figure 15 yes Figure 14 A bottom view of the lighting system.

[0036] The reference numerals in the attached drawings are explained as follows: 1000, Lighting system; 100, Film and television light; 10, Light source assembly; 11, LED light source; 12, Circuit board; 20, Housing; 21, Receiving cavity; 22, Top cover; 221, Power interface; 23, Base plate; 231, First through hole; 232, Support foot; 24, Front plate; 241, Mounting hole; 25, Back plate; 251, Third through hole; 26, First side wall; 261, Second through hole; 262, Connecting hole; 27, Mounting part; 271, Mounting boss; 272, Snap-fit ​​component; 28, Electrical connector; 29, Handle; 30, Heat dissipation channel; 31, Air outlet; 32, Air inlet; 40, Fan; 41, Long slot; 50, Liquid cooling assembly; 51, Cooling pipe; 511, First pipe 512. Second pipe; 513. Third pipe; 514. Fourth pipe; 52. Drive pump; 53. Liquid-cooled fins; 531. Housing; 5311. Mounting rail; 532. Fixture; 533. Ventilation plate; 5331. Ventilation slot; 534. Flow channel plate; 5341. Liquid flow channel; 535. Upper manifold; 5351. First channel; 536. Lower manifold; 5361. Second channel; 537. Ventilation passage; 538. Mounting slot; 54. Heat-conducting component; 60. Mounting bracket; 61. Support column; 62. Connecting beam; 70. Sheet metal bracket; 80. Wire; 90. Light fixture bracket; 91. Bracket body; 92. Mounting arm; 93. Pull ring; 94. Connector; 941. Handle; 95. Handle. Detailed Implementation

[0037] 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.

[0038] 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 device 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.

[0039] 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.

[0040] In existing technologies, high-power video lights typically use built-in fans to dissipate heat from their internal components. These lights usually have ventilation holes on the top of their housings to allow the fan to expel hot air. However, this design is vulnerable to rain and snow. Rainwater or snowflakes can easily enter the light through these ventilation holes, causing short circuits or damage to internal components. Furthermore, moisture can condense at the ventilation holes, sealing them and significantly reducing the light's cooling efficiency.

[0041] Therefore, this utility model proposes a film and television lamp that changes the airflow path into and out of the lamp, making it less likely for impurities such as rain and snow to fall into the air inlet and outlet, thereby improving the heat dissipation reliability and efficiency of the film and television lamp.

[0042] Please see Figure 1 and Figure 2 The video lamp 100 proposed in this application includes a light source assembly 10, a housing 20, and a heat dissipation channel 30. The housing 20 has an internal cavity 21, within which the light source assembly 10 is disposed. The housing 20 includes a top and bottom surface arranged vertically opposite each other, a front and back surface arranged front and back opposite each other, and a first and second side surface arranged left and right opposite each other. The top surface seals the top of the housing 20. The heat dissipation channel 30 includes at least one air outlet 31 disposed on the first and second side surfaces, and at least one air inlet 32 ​​disposed on the bottom surface, back surface, or the first or second side surface without an air outlet 31. Both the air inlet 32 ​​and the air outlet 31 are connected to the cavity 21, allowing external air to enter the cavity 21 through the air inlet 32 ​​and exit the cavity 21 through the air outlet 31.

[0043] Thus, by providing at least one air inlet 32 ​​on the bottom, back, first side, and second side of the housing 20, and providing an air outlet 31 on the side of the first and second side where no air inlet 32 ​​is provided, air from outside the housing 20 can enter the receiving cavity 21 through the air inlets 32 on the periphery or bottom of the housing 20 to absorb the heat generated by the light source assembly 10, and then flow out of the receiving cavity 21 from the air outlet 31, thereby completing the heat dissipation of the light source assembly 10. The top surface is used to seal the top surface of the housing 20, and no air inlet 32 ​​or air outlet 31 is provided there, so that in cold or snowy weather, rainwater or snowflakes are less likely to fall from the top surface of the housing 20 into the interior of the film and television lamp 100, and are less likely to freeze at the air outlet 31 and air inlet 32. Therefore, the film and television light 100 is not easily damaged by rain or snow falling into its interior, nor is it easy for the air outlet 31 or air inlet 32 ​​to freeze, thus reducing the flow of air entering or leaving the containment cavity 21, thereby improving the operational stability and heat dissipation reliability of the film and television light 100.

[0044] In some embodiments, the air outlet 31 and air inlet 32 ​​can be arranged in various forms. Air inlets 32 can be provided on both the bottom and back surfaces, and one air inlet 32 ​​can be provided on one of the first and second sides. An air outlet 31 can be provided on the side without an air inlet 32 ​​on the first or second side. Alternatively, air inlets 32 can be provided on both the bottom and back surfaces, and air outlets 31 can be provided on both the first and second sides. Another option is to provide one air inlet 32 ​​on only the bottom or back surface, and one air outlet 31 on only the first or second side. Or, air inlets 32 can be provided on both the bottom and back surfaces, and one air outlet 31 on only the first or second side. Finally, one air inlet 32 ​​and one air outlet 31 can be provided on each of the first and second sides.

[0045] In this embodiment, please refer to Figure 2 and Figure 4 The housing 20 is designed with a square structure and includes a top cover 22 on the top surface, a bottom plate 23 on the bottom surface, a front plate 24 on the front side, a back plate 25 on the back side, and two first side walls 26 on the first and second sides respectively. The receiving cavity 21 is formed by the top cover 22, the bottom plate 23, the front plate 24, the back plate 25, and the two first side walls 26.

[0046] In this embodiment, please refer to Figure 2 The top cover 22 is a plate-like structure that seals the receiving cavity 21 on the top surface of the housing 20, preventing external and internal air from flowing through the top cover 22. This prevents rain, snow, and other impurities from falling into the receiving cavity 21 and damaging the film and television light 100 when it is used in rainy or snowy weather, thus improving the operational stability of the film and television light 100.

[0047] In some embodiments, the top cover 22 of the housing 20 is also provided with a power interface 221, which is electrically connected to the light source assembly 10. The power interface 221 is used to connect to an external power source so that the external power source supplies power to the light source assembly 10.

[0048] In another embodiment, a high-power battery can be provided in the receiving cavity 21. In the absence of an external power source, the battery can power the light source assembly 10, enabling the film and television light 100 to continue working and increasing the applicability of the film and television light 100.

[0049] Please see Figure 3 In this embodiment, the bottom plate 23 of the housing 20 is a plate-like structure, and the bottom plate 23 has multiple first through holes 231 communicating with the receiving cavity 21 to form an air inlet 32. Thus, air from outside the housing 20 can enter the receiving cavity 21 through the multiple first through holes 231, allowing the air to flow through the light source assembly 10 and absorb the heat generated by the light source assembly 10. Multiple second through holes 261 are formed on the two opposing first sidewalls 26 of the housing 20, and each of the multiple second through holes 261 on the first sidewall 26 communicates with the receiving cavity 21 to form an air outlet 31. Thus, the air that has absorbed the heat from the light source assembly 10 flows out of the receiving cavity 21 through the multiple second through holes 261 to dissipate heat from the light source assembly 10. Furthermore, connection holes 262 are formed on the two opposing first sidewalls 26.

[0050] In some embodiments, please refer to Figure 3 The housing 20 also includes multiple support feet 232 disposed on the base plate 23. There are four support feet 232, each fixed to one of the four corners of the base plate 23 boundary. Each support foot 232 is a block structure with threaded holes on its bottom surface for connection to an external bracket. Thus, when the video light 100 is placed on the supporting surface, the support feet 232 can support the video light 100, creating a certain gap between the base plate 23 of the video light 100 and the supporting surface. This ensures that the first air inlet on the base plate 23 is not blocked, thus preventing a reduction in the heat dissipation efficiency of the video light 100. Alternatively, it facilitates securing the video light 100 during storage, reducing the possibility of the video light 100 shifting and falling, causing damage.

[0051] In this embodiment, please refer to Figure 4The back plate 25 of the housing 20 is a plate-like structure, and multiple third through holes 251 communicating with the receiving cavity 21 are provided on the back plate 25 to form air inlets 32 similar to those on the bottom plate 23. This allows air from outside the housing 20 to be drawn into the receiving cavity 21 through the third through holes 251, increasing the airflow into the receiving cavity 21 and thus improving the heat dissipation efficiency of the video lamp 100. Connection holes 262 are provided on both opposite first sidewalls 26. The air inlets 32 on the bottom plate 23 and back plate 25, the receiving cavity 21, and the air outlets 31 on the two first sidewalls 26 form the heat dissipation channel 30 of the video lamp 100.

[0052] Please see 4 and Figure 5 In this embodiment, the light source assembly 10 is disposed within the receiving cavity 21. The front plate 24 of the housing 20 is a plate-shaped structure, and a mounting hole 241 communicating with the receiving cavity 21 is provided on the front plate 24. The light emitted by the light source assembly 10 is emitted through the mounting hole 241. A mounting portion 27 is also provided on the surface of the front plate 24 opposite to the receiving cavity 21. The mounting portion 27 includes a mounting boss 271 and a snap-fit ​​member 272. The mounting boss 271 is a ring-shaped structure and is arranged around the mounting hole 241. Multiple snap-fit ​​members 272 are provided and are spaced apart on the inner sidewall of the mounting boss 271. The snap-fit ​​members 272 are used for engaging with the electric accessory. An electrical connector 28 is also provided between the mounting hole 241 and the snap-fit ​​member 272. The electrical connector 28 is electrically connected to the power interface 221. When the electric accessory is snapped onto the mounting boss 271, the electric accessory is electrically connected to the electrical connector 28, so that the power supply external to the film and television lamp 100 supplies power to the electric accessory. This electric accessory can be used for devices such as electrically adjustable Fresnel lenses, electric filter disks, and electric zoom reflectors. By installing the electric accessory on the mounting hole 241, users can easily adjust the light efficiency of the light source assembly 10.

[0053] In some embodiments, a handle 29 is provided on each of the opposite sides of the top cover 22, and the two handles 29 are identical in shape and size. Both ends of each handle 29 are fixed to the same side of the top cover 22, and the handle 29 is bent to form an arched structure, making it easy for the user to hold and lift the camera light.

[0054] In some embodiments, please refer to Figure 5The film and television light 100 also includes a mounting frame 60, which is disposed within the receiving cavity 21 and connected to the inner wall of the housing 20. The mounting frame 60 is a frame structure, comprising four support columns 61 and multiple connecting beams 62. The four support columns 61 are vertically arranged, and connecting beams 62 connect the top and bottom surfaces of adjacent support columns 61, forming a rectangular frame structure. Each connecting beam 62 of the mounting frame 60 can be threadedly connected to the inner wall of the housing 20, fixing the mounting frame 60 within the receiving cavity 21 and ensuring its stability within the cavity 21.

[0055] In this embodiment, the video light 100 also includes a sheet metal bracket 70 protruding from the front of the mounting bracket 60. The sheet metal bracket 70 is fixedly connected to two support columns 61 on the front of the mounting bracket 60. The light source assembly 10 is fixed to the end of the support column 61 away from the mounting bracket 60, so that the light source assembly 10 is positioned corresponding to the mounting hole 241 on the front panel 24, facilitating the light emitted by the light source assembly 10 to be emitted through the mounting hole 241. Furthermore, the sheet metal bracket 70 is also provided with a wire 80 for connecting the light source assembly 10 and the power interface 221.

[0056] In some embodiments, the light source assembly 10 includes a circuit board 12 and an LED light source 11. The LED light source 11 is fixed to the circuit board 12 and electrically connected to the circuit board 12. The circuit board 12 is fixed to the side of the sheet metal bracket 70 opposite to the mounting bracket 60 and is electrically connected to the wires 80 on the sheet metal bracket 70.

[0057] Please see Figure 5 and Figure 6 In some embodiments, the video lamp 100 also includes a heat dissipation system, which includes a fan 40 and a liquid cooling assembly 50, both of which are disposed within the receiving cavity 21.

[0058] In this embodiment, two fans 40 are arranged opposite each other within the receiving cavity 21. The two fans 40 are respectively located on opposite sides of the mounting bracket 60, and the ventilation area of ​​each fan 40 corresponds to an air outlet 31 on the first side wall 26, so that the fans 40 can smoothly blow the air in the receiving cavity 21 out through the air outlet 31. The fans 40 can accelerate the exchange between the air in the receiving cavity 21 and the air outside the housing 20, thereby improving the heat dissipation efficiency of the film and television lamp 100.

[0059] In some embodiments, the liquid cooling assembly 50 includes a cooling pipe 51, a drive pump 52, a heat-conducting element 54, and a liquid-cooled finned element 53, all of which are disposed within a mounting bracket 60. The cooling pipe 51 contains coolant, and the drive pump 52 and the heat-conducting element 54 are connected through the cooling pipe 51. The drive pump 52 drives the coolant to flow through the cooling pipe 51 to the heat-conducting element 54. The heat-conducting element 54 has a plate-like structure and a heat-conducting cavity within it. The heat-conducting element 54 is fixed to two adjacent support columns 61 of the mounting bracket via a sheet metal bracket 70. The circuit board 12 is fixed to the surface of the heat-conducting element 54 facing away from the sheet metal bracket 70. The cooling pipe 51 connects the drive pump 52 and the heat-conducting cavity, and the drive pump 52 drives the coolant to flow into the heat-conducting cavity. The heat generated by the light source assembly 10 can be conducted to the heat-conducting outer wall, and the coolant in the heat-conducting cavity can absorb the heat generated by the light source assembly 10 to dissipate heat from the light source assembly 10.

[0060] In this embodiment, the type of coolant can be selected from various options, such as ethylene glycol, propylene glycol, or organic acids.

[0061] In other embodiments, the heat dissipation system may consist only of a fan 40, which accelerates the exchange of air between the housing cavity 21 and the outside of the housing 20 to dissipate heat from the light source assembly 10. Alternatively, only a liquid cooling assembly 50 may be provided to dissipate heat from the light source assembly 10.

[0062] In some embodiments, please refer to Figure 7 The liquid-cooled fin assembly 53 includes a housing 531, multiple flow channel plates 534 disposed within the housing 531, multiple ventilation plates 533, and a manifold. A fixing member 532, which is a U-shaped groove plate, is provided on the outer periphery of the housing 531. On the side of the mounting bracket 60 opposite to the first sidewall 26, the fixing member 532 is bolted to the support column 61 and connecting beam 62 of the mounting bracket 60 to fix the housing 531 on the mounting bracket 60 and to allow the housing 531 to fit and embed into the side of the mounting bracket 60. This improves the installation stability of the liquid-cooled fin assembly 53 inside the housing 20, making it less prone to shaking.

[0063] Specifically, a mounting rail 5311 is provided on one side of the housing 531, and elongated slots 41 are provided on both opposite sides of the fan 40. The elongated slots 41 can be fitted and snapped onto the mounting rail 5311, allowing the fan 40 to be mounted on the housing 531. The side of each housing 531 with the mounting rail 5311 faces inward toward the mounting bracket 60. In this way, the internal space of the mounting bracket 60 is fully utilized, and the structure of the fan 40, liquid-cooled fin 53, and mounting bracket 60 is made more compact, reducing the space occupied by the fan 40 and liquid-cooled fin 53.

[0064] In some embodiments, the area occupied by the plurality of second through holes 261 on the first sidewall 26 of the housing 20 is larger than the ventilation area of ​​the fan 40, so that the air flowing in some of the second through holes 261 on the first sidewall 26 is not affected by the air outlet area of ​​the fan 40, and can enter the receiving cavity 21, thereby increasing the airflow into the receiving cavity 21 and improving the heat dissipation efficiency of the film and television lamp 100.

[0065] In some embodiments, please refer to Figure 7 and Figure 8 The manifold is housed within the outer casing 531 and includes an upper manifold 535 located on the upper side of the outer casing 531 and a lower manifold 536 located on the lower side of the outer casing 531. A flow channel plate 534 and a ventilation plate 533 are both located between the upper manifold 535 and the lower manifold 536. Multiple mounting slots 538 are provided on the opposite sides of both the upper and lower manifolds 535 and 536, and these mounting slots 538 are spaced apart. The flow channel plate 534 has a plate-like structure and contains a liquid flow channel 5341 for coolant circulation. The liquid flow channel 5341 extends along the length of the flow channel plate 534. Multiple flow channel plates 534 are spaced apart within the outer casing 531, and the liquid flow channel 5341 is arranged vertically within the outer casing 531.

[0066] Please see Figure 9 and Figure 12Each flow channel plate 534 has its upper end inserted into the mounting slot 538 of the upper manifold 535 and its lower end inserted into the mounting slot 538 of the lower manifold 536, allowing coolant to flow between the upper and lower manifolds 535 and 536 through the liquid flow channel 5341. The upper end of the outer casing 531 has a first channel 5351 communicating with the upper manifold 535, through which the upper manifold 535 is connected to the cooling pipe 51. The lower end of the outer casing 531 also has a second channel 5361 communicating with the lower manifold 536, through which the lower manifold 536 is connected to the cooling pipe 51. Two liquid-cooled fins 53 are provided: one liquid-cooled fin 53 is located near the first side of the casing 20, and the other liquid-cooled fin 53 is located near the second side of the casing 20. The upper manifold 535 of the liquid-cooled fin 53 located near the first side is connected to the heat-conducting cavity via a cooling pipe 51, allowing coolant to flow from the heat-conducting cavity into the upper manifold 535 of the liquid-cooled fin 53. The lower manifold 536 of the liquid-cooled fin 53 located near the first side is connected to the lower manifold 536 of another liquid-cooled fin 53 via a cooling pipe 51, allowing coolant to flow from the lower manifold 536 of one liquid-cooled fin 53 into the lower manifold 536 of the other liquid-cooled fin 53. The upper manifold 535 of the liquid-cooled fin 53 located near the second side is connected to the drive pump 52 via a cooling pipe 51, allowing coolant to enter the drive pump 52 from the upper manifold 535 of the liquid-cooled fin 53, thus circulating the coolant within the liquid-cooling assembly 50.

[0067] In this embodiment, please refer to Figure 9 and Figure 10 The ventilation plate 533 has a plate-like structure, with each ventilation plate 533 positioned between two adjacent flow channel plates 534 and in close contact with the surfaces of the two adjacent flow channel plates 534. Each ventilation plate 533 has multiple ventilation slots 5331, the extension direction of which is perpendicular to the extension direction of the liquid flow channel 5341. The multiple ventilation slots 5331 are spaced apart along the length of the ventilation plate 533 to form a ventilation passage 537. Furthermore, the ventilation slots 5331 are oriented opposite to the air outlet 31 of the first side wall 26, allowing the fan 40 to blow air through the ventilation slots 5331 and out of the air outlet 31. This allows the air to absorb and carry away the heat of the coolant flowing through the liquid flow channel 5341, thereby dissipating heat from the coolant.

[0068] Thus, driven by the drive pump 52, the coolant, having absorbed heat from the light source assembly 10, enters the upper manifold 535 of the liquid-cooled fin 53 near the first side. The coolant flows through the liquid flow channel 5341 and exchanges heat with the air, lowering its temperature. Subsequently, the coolant flows from the lower manifold 536 of the liquid-cooled fin 53 near the first side into the lower manifold 536 of another liquid-cooled fin 53. Driven by the drive pump 52, the coolant can then flow from the lower manifold 536 of the liquid-cooled fin 53 near the second side through the liquid flow channel 5341 into the upper manifold 535 for further cooling.

[0069] In this way, the coolant undergoes two cooling processes, improving its heat dissipation efficiency. The coolant then enters the drive pump 52 through the upper manifold 535 near the liquid-cooled fin assembly 53 on the second side, and re-enters the heat-conducting cavity to dissipate heat from the light source assembly 10, allowing the coolant to circulate within the liquid-cooled assembly 50. This reduces coolant waste and purchasing needs, lowers costs, and mitigates environmental pollution caused by coolant emissions.

[0070] In other embodiments, the two liquid-cooled fins 53 may be arranged in other ways. The upper manifold 535 of the liquid-cooled fin 53 near the first side is connected to the heat-conducting element 54 through a cooling pipe 51, and the lower manifold 536 of the liquid-cooled fin 53 is connected to the drive pump 52 through a cooling pipe 51. The upper manifold 535 of the liquid-cooled fin 53 near the second side is connected to the heat-conducting element 54 through a cooling pipe 51, and the lower manifold 536 of the liquid-cooled fin 53 is connected to the drive pump 52 through a cooling pipe 51.

[0071] In some embodiments, please refer to Figure 6The cooling pipe system 51 consists of multiple pipes, including a first pipe 511, a second pipe 512, a third pipe 513, and a fourth pipe 514. One end of the first pipe 511 is connected to the drive pump 52, and the other end is connected to the heat-conducting cavity of the heat-conducting component 54, allowing coolant to flow from the drive pump 52 through the first pipe 511 into the heat-conducting cavity. One end of the second pipe 512 is connected to the heat-conducting cavity of the heat-conducting component 54, and the other end is connected to the first channel 5351 of the liquid-cooled fin 53 near the first side, allowing coolant in the heat-conducting cavity to flow through the second pipe 512 into the upper manifold of the liquid-cooled fin 53 near the first side. One end of the third pipe 513 is connected to the second channel 512 of the liquid-cooled fin 53 near the first side, and the other end is connected to the second channel 512 of the liquid-cooled fin 53 near the second side, allowing coolant in one side of the liquid-cooled fin 53 to flow through the third pipe 513 into the other side of the liquid-cooled fin 53. One end of the fourth pipe 514 is connected to the first channel 511 of the liquid-cooled fin 53 near the second side, and the other end is connected to the drive pump 52, so that the coolant can flow back into the drive pump 52 for reuse.

[0072] Please see Figure 13 and Figure 14 This application also provides a lighting system 1000, including a lamp holder 90 and the aforementioned film and television light 100. The lamp holder 90 is connected to the housing 20 of the film and television light 100 to support the film and television light 100. The specific details of the film and television light 100 are as described in the above embodiments. Since the film and television light 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0073] In this embodiment, the lamp holder 90 includes a holder body 91, mounting arms 92 disposed on the holder body 91, and a handle 95 connected to the middle of the holder body 91. Two mounting arms 92 are provided, respectively fixed to opposite sides of the holder body 91, forming a "U" shape with the holder body 91. The ends of the two mounting arms 92 furthest from the holder body 91 are respectively connected to the two first sidewalls 26 of the housing 20 to support the video lamp 100.

[0074] In some embodiments, the lamp holder 90 further includes a connector 94, which is rotatably connected to the end of each mounting arm 92 away from the holder body 91. Each connector 94 is fixedly connected to the first sidewall 26 of the housing 20, enabling the lamp holder 90 to support the video lamp 100 and allowing the video lamp 100 to rotate relative to the mounting arm 92, facilitating user adjustment of the direction of the light emitted by the video lamp 100. A handle 941 is also fixed to the connector 94; rotating the handle 941 causes the video lamp 100 to rotate relative to the mounting arm 92, improving the convenience for the user to adjust the light direction of the video lamp 100.

[0075] In some embodiments, the lamp holder 90 further includes a pull ring 93 disposed on a mounting arm 92, with each mounting arm 92 having a slidably slidably disposed on a pull ring 93. External cables of the lighting system 1000 can be passed through the pull ring 93 or suspended from the pull ring 93 to neatly organize the cables of the lighting system 1000, preventing tangling of numerous external cables and thus ensuring the usability of the film and television light 100. Furthermore, the pull ring 93 can also be connected to external hoisting equipment, facilitating the hoisting of the lighting system 1000 and eliminating the need for manual relocation by the user, effectively improving the ease of use of the lighting system 1000.

[0076] 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 film and television light, characterized in that, include: A light source assembly includes an LED light source and a circuit board, wherein the LED light source is disposed on the circuit board and is used to emit light; The housing has an internal cavity, in which the light source assembly is disposed. The housing includes a top surface and a bottom surface arranged vertically opposite each other, a front surface and a back surface arranged front to back, and a first side surface and a second side surface arranged left to right. The top surface seals the top of the housing. The heat dissipation channel includes at least one air outlet on the first side and the second side, and at least one air inlet on the bottom surface, the back surface, or the first side or the second side without the air outlet. Both the air inlet and the air outlet are connected to the receiving cavity. External air enters the receiving cavity through the air inlet and flows out of the receiving cavity through the air outlet.

2. The film and television light according to claim 1, characterized in that, The bottom sidewall of the housing has multiple first through holes to form the air inlet, and the first sidewall and the second sidewall have multiple second through holes to form the air outlet.

3. The film and television light according to claim 1, characterized in that, The film and television light also includes a heat dissipation system, which includes a fan. Two fans are arranged opposite each other in the housing cavity. One fan is arranged near the first side and the other fan is arranged near the second side. The fans are used to draw external air into the housing cavity through the air inlet, so that the air flows through the light source assembly, and blow the air in the housing cavity out of the housing cavity through the air outlet.

4. The film and television light according to claim 3, characterized in that, The heat dissipation system also includes a liquid cooling component disposed within the receiving cavity. The liquid cooling component includes a cooling pipe and a drive pump. Coolant flows through the cooling pipe, and the drive pump is connected to the cooling pipe. The drive pump drives the coolant to flow within the cooling pipe. The light source component is disposed close to the cooling pipe, so that the coolant absorbs the heat generated by the light source component.

5. The film and television light according to claim 4, characterized in that, The liquid cooling assembly further includes liquid-cooled fins disposed within the receiving cavity. The liquid-cooled fins include a housing, a liquid flow channel, and a ventilation channel. The liquid flow channel is located inside the housing, and its two ends are connected to the drive pump via the cooling pipes, allowing the coolant to circulate between the drive pump, the cooling pipes, and the liquid flow channel. The drive pump drives the coolant to flow within the cooling pipes to absorb heat from the light source assembly and to flow into the liquid flow channel. The ventilation channel is located within the receiving cavity and is positioned relative to the liquid flow channel. The fan guides air within the receiving cavity through the ventilation channel to exchange heat with the coolant within the liquid flow channel.

6. The film and television light according to claim 5, characterized in that, The liquid-cooled fin component further includes a flow channel plate and a ventilation plate. The ventilation plate is disposed on the surface of the flow channel plate. The flow channel plate is disposed inside the housing in the vertical direction. The liquid flow channel is disposed along the extension direction of the flow channel plate. The ventilation plate is provided with a plurality of ventilation slots to form the ventilation passage. The extension direction of the ventilation slots intersects with the extension direction of the flow channel plate.

7. The film and television light according to claim 5, characterized in that, The liquid cooling assembly further includes a heat-conducting element, the light source assembly is disposed on the heat-conducting element, the heat-conducting element is disposed in the receiving cavity, the heat-conducting element has a heat-conducting cavity inside, the cooling pipe connects the drive pump and the heat-conducting element so that the coolant flows through the heat-conducting cavity, and the heat-conducting element and the liquid cooling fin are connected through the cooling pipe so that the coolant flows from the heat-conducting cavity to the liquid flow channel.

8. The film and television light according to claim 7, characterized in that, Two liquid-cooled fins are provided in the receiving cavity. One liquid-cooled fin is located near the first side, and the other liquid-cooled fin is located near the second side, so that each ventilation channel can be positioned opposite an air outlet. Each liquid-cooled fin is provided with a fan opposite to it. One liquid-cooled fin is connected to the heat-conducting component through a cooling pipe, and the other liquid-cooled fin is connected to the drive pump through the cooling pipe. The two liquid-cooled fins are connected through the cooling pipe, so that the coolant circulates sequentially in the heat-conducting component, one liquid-cooled fin, the other liquid-cooled fin, and the drive pump under the drive pump.

9. The film and television light according to claim 5, characterized in that, The film and television light also includes a mounting bracket, which is disposed in the receiving cavity and connected to the inner wall of the housing. The liquid-cooled fins are fixed in the mounting bracket, the drive pump is disposed on the bottom surface of the mounting bracket, and the light source assembly is fixed on the side of the mounting bracket near the front.

10. The film and television light according to claim 3, characterized in that, The area occupied by the plurality of second through holes on the first side of the housing is larger than the size of the fan, so that external air can enter the housing cavity through part of the second through holes.

11. A lighting system, characterized in that, include: Film and television lights as described in any one of claims 1 to 10; The lamp holder includes a holder body and mounting arms. Each mounting arm is provided on a opposite side of the holder body and is rotatably connected to the film and television lamp to support the film and television lamp.

Images