Stereoscopic light source type film and television lamp and film and television lamp system

Abstract

The utility model provides a three-dimensional light source type film and television lamp and a film and television lamp system. The three-dimensional light source type film and television lamp comprises a plurality of lamp panels and a liquid cooling device. The lamp panel comprises a light source and a circuit board, and the light source is arranged on the circuit board. The liquid cooling device comprises a liquid cooling box, at least one liquid cooling cavity used for circulation of cooling liquid is formed in the liquid cooling box, the liquid cooling box is further provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity, the liquid cooling device is provided with a plurality of heat conduction faces, included angles are formed between the heat conduction faces, and lamp panels are assembled on at least two heat conduction faces. Cooling liquid enters the liquid cooling cavity through the liquid inlet and is discharged from the liquid outlet. According to the three-dimensional light source type film and television lamp and the film and television lamp system, the good heat dissipation effect can be guaranteed, and the size is small.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment, and in particular to a three-dimensional light source film and television light and film and television light system. Background Technology

[0002] Currently, film and television lighting sources can generally be divided into LED lights and thermal light sources. Thermal light sources typically include incandescent lamps and halogen lamps. Due to their advantages such as smaller size and faster response, LED lights are gradually replacing traditional thermal light sources. However, the power output of LED lights is often limited by the number of LEDs. To increase the power output of LED lights, a larger number of LED chips are needed.

[0003] However, adding more LED chips results in a larger LED light area and a larger light-emitting surface. Typically, in film and television lighting, optical accessories with corresponding functions are installed on the outside of the LED light according to the usage requirements. If the light-emitting surface of the LED light is large, it will cause the optical accessories to be bulky, and at the same time, it will be difficult for the optical accessories to achieve their optical effects. Furthermore, when there are many LEDs and the light-emitting area is large, there are limitations in heat dissipation, directly affecting the normal operation of the high-power LED light. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and propose a three-dimensional light source film and television light and film and television light system that can ensure good heat dissipation and small size.

[0005] A three-dimensional light source for film and television lighting, comprising:

[0006] Multiple light panels, each light panel including a light source and a circuit board, the light source being disposed on the circuit board; and

[0007] A cooling device comprising multiple heat-conducting surfaces arranged at an angle to each other, wherein at least two of the heat-conducting surfaces are fitted with the lamp panels and at least two of the lamp panels emit light in different directions.

[0008] In one embodiment, the cooling device is a liquid cooling device, which includes a liquid cooling box. The liquid cooling box has at least one liquid cooling cavity for circulating coolant. The liquid cooling box also has an inlet and an outlet connected to the liquid cooling cavity. The coolant enters the liquid cooling cavity through the inlet and is discharged from the outlet.

[0009] In one embodiment, the lamp panel is detachably mounted on the heat-conducting surface.

[0010] In one embodiment, the liquid cooling box is polyhedral in shape, and the liquid inlet and the liquid outlet are located on the same side of the liquid cooling box.

[0011] In one embodiment, the liquid cooling box includes multiple sub-liquid cooling boxes, each of which has a sub-liquid cooling cavity. The multiple sub-liquid cooling boxes are spliced ​​together at an incline. Each sub-liquid cooling box includes a first mounting plate and a second mounting plate disposed opposite to each other. The outer side of the first mounting plate is the heat-conducting surface, and the second mounting plate has a first connecting pipe and a second connecting pipe communicating with the sub-liquid cooling cavity.

[0012] In one embodiment, the liquid cooling device further includes a manifold, the liquid inlet and the liquid outlet are disposed on the manifold, the manifold is provided with a manifold cavity, and the manifold cavity is connected to the liquid cooling cavity.

[0013] In one embodiment, a mounting bracket is also included, the mounting bracket having a plurality of mounting surfaces that are inclined to each other, and the second mounting plate of the sub-liquid cooling box is mounted on the mounting surface.

[0014] In one embodiment, the second mounting plate of the sub-liquid cooling box is further provided with a circuit conduit for the cable passing through the lamp board. The mounting surface is provided with a first through hole, a second through hole and a third through hole. The first through hole is used to pass through the first connecting pipe, the second through hole is used to pass through the second connecting pipe, and the third through hole is used to pass through the circuit conduit.

[0015] In one embodiment, a base is also included, on which the mounting bracket is mounted, and the base is provided with a bayonet structure for detachable connection of optical accessories.

[0016] In one embodiment, the liquid cooling box is an integral structure.

[0017] In one embodiment, the system further includes a liquid cooling tank, which contains a cooler and a pressure pump. The liquid cooling tank also has an inlet pipe and an outlet pipe. The inlet pipe is connected to the inlet port, and the outlet pipe is connected to the outlet port. The cooler is used to provide circulating coolant for the liquid cooling device, and the pressure pump is connected to the circulating coolant.

[0018] In one embodiment, a power control device is further included, which is electrically connected to the lamp panel and the liquid cooling box, and is used to supply power to the lamp panel and the liquid cooling box.

[0019] In one embodiment, the power control device is electrically connected to both the lamp panel and the liquid cooling box. After the power control device controls the liquid cooling box to start working, it then controls the lamp panel to be powered on.

[0020] In one embodiment, the cooling device includes a plurality of semiconductor cooling plates, the cold side of the semiconductor cooling plates facing the lamp plate and the hot side of the semiconductor cooling plates facing away from the lamp plate.

[0021] A film and television lighting system, comprising:

[0022] The aforementioned three-dimensional light source for film and television lighting;

[0023] An optical accessory is disposed in front of the stereoscopic light source film and television light, and the stereoscopic light source film and television light is located on the optical axis of the optical accessory.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] The aforementioned three-dimensional light source film and television lights use a liquid cooling device to remove heat from the light panel through flowing coolant, ensuring that heat can be dissipated in a timely manner from all parts of the light panel, thus improving the heat dissipation effect of the liquid cooling device.

[0026] Furthermore, the liquid cooling device has multiple heat-conducting surfaces arranged at an angle to each other. Since each heat-conducting surface is used to mount a lamp panel, the area of ​​each lamp panel can be relatively reduced, thus facilitating heat dissipation from each panel and further improving the heat dissipation effect of the liquid cooling device.

[0027] Furthermore, the aforementioned three-dimensional light source film and television lights can not only achieve high operating power, but also form a three-dimensional light-emitting surface by arranging multiple light panels at an angle, giving the liquid cooling device multiple light-emitting surfaces at different angles.

[0028] In this film and television lighting system, the diameter of the three-dimensional light source is relatively small, and the aperture of its compatible optical accessories is also relatively smaller. Smaller aperture optical accessories are easier to install and have higher light conversion efficiency for the liquid cooling device, thus improving the optical effect of the film and television lighting system. Attached Figure Description

[0029] Figure 1 This is a perspective view of the film and television lighting system of this embodiment;

[0030] Figure 2 yes Figure 1 An exploded view of the three-dimensional light source type film and television light section shown;

[0031] Figure 3 yes Figure 2 A schematic diagram of the internal structure of the liquid-cooled box of a three-dimensional light source film and television lamp;

[0032] Figure 4 yes Figure 3 The liquid cooling box shown is a cross-sectional view along the AA direction;

[0033] Figure 5 This is a three-dimensional view of another embodiment of a stereoscopic light source for film and television lighting;

[0034] Figure 6 yes Figure 5 An exploded view of a 3D light source for film and television lighting.

[0035] Figure 7 This is a perspective view of the film and television lighting system of this embodiment, including optical accessories and a base;

[0036] Figure 8 yes Figure 7 The diagram shown is an exploded view of the film and television lighting system.

[0037] Figure 9 This is a three-dimensional view of the film and television lighting system shown from another angle;

[0038] Figure 10 yes Figure 9 The diagram shown is an exploded view of the film and television lighting system.

[0039] Figure 11 This is a schematic diagram of another embodiment of the cooling device for the stereoscopic light source film and television lamp of this application.

[0040] The reference numerals in the attached figures are explained as follows:

[0041] 1. Three-dimensional light source for film and television lighting;

[0042] 10. Three-dimensional light source; 11. Lamp board; 111. LED light source; 112. Circuit board; 113. Electrical connection module; 114. Cable; 13. Lamp housing;

[0043] 20. Liquid cooling device; 21. Liquid cooling box; 201. Heat-conducting surface; 202. Temperature sensor; 203. First heat-conducting surface; 204. Second heat-conducting surface; 205. Third heat-conducting surface; 206. Fourth heat-conducting surface; 207. Fifth heat-conducting surface; 212 (312) Liquid inlet; 213 (313) Liquid outlet; 214. First cooling chamber; 215. Second cooling chamber; 216. Cooling channel; 217. Fins; 218. High-temperature reflux chamber; 219. Baffle plate;

[0044] 22. Sub-liquid cooling box; 221. First mounting plate; 222. Second mounting plate; 223. First connecting pipe; 224. Second connecting pipe; 225. Circuit conduit; 23. Combiner box; 231. First connector; 232. Second connector;

[0045] 30. Cooling device; 31. Liquid cooling box; 320. Semiconductor cooling plate; 303. First heat-conducting surface; 305. Third heat-conducting surface; 307. Fifth heat-conducting surface; 300. Cooling rack;

[0046] 40. Base; 41. Bayonet structure;

[0047] 50. Mounting bracket; 51. Mounting surface; 511. First through hole; 512. Second through hole; 513. Third through hole;

[0048] 60. Liquid cooling box; 61. Pressure pump; 62. Fan; 63. Liquid inlet pipe; 64. Liquid outlet pipe;

[0049] 70. Power control device; 71, 72. Wires;

[0050] 2. Optical accessories. Detailed Implementation

[0051] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0052] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. While certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0053] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0054] Film and television lights are used in venues such as stages, concerts, and studios, typically for stage lighting and also for photography and videography lighting. Traditional high-power film and television lights usually use halogen lamps as their light source, with luminous power often reaching thousands or even tens of thousands of watts. For LED film and television lights, when the luminous power reaches thousands or tens of thousands of watts, the number of LED chips is much larger. If all the LED chips are arranged on the same plane, the LED chip area increases significantly. For LED light sources with a large area, heat dissipation becomes a challenge. At the same time, the larger area of ​​the LED light source also results in larger mounting diameters for the compatible optical accessories, leading to larger overall optical component sizes. Examples include softboxes with diameters several meters, softboxes, reflectors, diffusers, projection tubes, Fresnel lenses, motorized focusing lenses, and multi-leaf baffles. Large optical components also result in poorer optical performance, thus causing inconvenience in the use of high-power LED film and television lights.

[0055] Please see Figure 1 and Figure 2 The stereoscopic light source type film and television lamp 1 provided in this embodiment includes a stereoscopic light source 10 and a liquid cooling device 20. The stereoscopic light source 10 is disposed on the cooling device, which is the liquid cooling device 20 in this example. Compared with traditional planar light sources, the stereoscopic light source 10 can greatly reduce the projected area of ​​the LED chip on the light-emitting surface. Furthermore, the liquid cooling device 20 can dissipate heat from the stereoscopic light source 10 in a timely manner, ensuring that the high-power film and television lamp can operate normally.

[0056] The three-dimensional light source 10 includes multiple light panels 11, which are arranged at angles to each other to form multiple light-emitting surfaces at various angles. These light-emitting surfaces are distributed in a three-dimensional space. This three-dimensional light source 10 can reduce its area perpendicular to the illumination direction, which is beneficial for reducing the size of the high-power three-dimensional light source film and television lamp 1.

[0057] The lamp board 11 includes a light source 111 and a circuit board 112. The light source 111 is mounted on the circuit board 112. The light source 111 can be an LED bead, an LED chip, a laser light source, etc. When the light source 111 is an LED chip, the LED chip can be directly integrated onto the circuit board using chip-on-board (COB) packaging technology. Therefore, the lamp board 11 can also be a COB board. When the light source is lit, it generates heat, which is transferred to the circuit board 112.

[0058] LED chips are evenly arranged on circuit board 112, and the shape of the LED chip arrangement corresponds to the shape of the light-emitting surface of the lamp board 11. The LED chip arrangement shape can be rectangular, circular, etc. When the density of LED chips is high, the LED chips generate more heat.

[0059] The lamp board 11 is also provided with an electrical connection module 113, which can be located on the outer edge of the circuit board. The circuit of the LED chip on the COB board is integrated into the electrical connection module 113, and the electrical connection module 113 leads out a cable 114, which can be used to supply power to the lamp board 11 and transmit data signals.

[0060] The electrical connection modules 113 can be connected via cables 114, and can be electrically connected via plug-and-play. The interconnected light panels 11 can be electrically connected and transmit data signals via the electrical connection modules 113. It can be understood that the electrical connection between the light panels 11 can be either series or parallel. That is, the three-dimensional light source film and television light 1 can individually control the working state of a single light panel 11, or simultaneously control the working state of multiple light panels 11. The working states of the light panels 11 include lighting, turning off, flashing, and controlling the LED chips of different colors to adjust the color temperature.

[0061] The liquid cooling device 20 has a three-dimensional shape. The liquid cooling device 20 has multiple heat-conducting surfaces 201 arranged at an angle to each other, and at least two heat-conducting surfaces 201 are fitted with lamp plates 11. Thus, the three-dimensional light source 10 can be formed by mounting the heat-conducting surfaces 201 of the liquid cooling device 20. Furthermore, mounting the lamp plate 11 on the heat-conducting surface 201 facilitates the transfer of heat from the lamp plate 11 through the heat-conducting surface 201.

[0062] The side of the liquid cooling device 20 can be configured as a heat-conducting surface 201. Each heat-conducting surface 201 corresponds to a light-emitting surface. Multiple lamp panels 11 can be assembled on the liquid cooling device 20 to form the three-dimensional light source 10. The liquid cooling device 20 can be a cube, polyhedron, irregular shape, etc., and the corresponding three-dimensional light source 10 can also be a cube, polyhedron, irregular shape, etc.

[0063] The lamp board 11 is detachably mounted on the heat-conducting surface 201. When one of the lamp boards 11 fails, only that lamp board 11 needs to be removed and replaced, while the other lamp boards 11 can continue to work normally, thus achieving convenient maintenance and saving maintenance costs.

[0064] Specifically, the lamp panel 11 can be detachably mounted on the heat-conducting surface 201 of the liquid cooling device 20 by means of fastening screws 9.

[0065] Please see Figure 2 The liquid cooling device 20 includes a liquid cooling box 21. The liquid cooling box 21 has at least one liquid cooling cavity for the flow of coolant. The liquid cooling box 21 also has an inlet and an outlet connected to the liquid cooling cavity. Coolant enters the liquid cooling cavity through the inlet and exits through the outlet. The flowing coolant from the liquid cooling cavity carries away heat from the heat-conducting surface 201, thereby achieving heat dissipation for the lamp panel 11.

[0066] The liquid cooling box 21 includes multiple sub-liquid cooling cavities, which are interconnected. Each sub-liquid cooling cavity can correspond to a heat-conducting surface 201, on which a lamp plate 11 is mounted for heat dissipation. The multiple sub-liquid cooling cavities can be connected in series or in parallel, as long as the circulation of coolant in each sub-liquid cooling cavity can be achieved.

[0067] The liquid cooling box 21 can be a single integrated structure. Each side of the liquid cooling box 21 is a heat-conducting surface 201, and the lamp panel 11 is directly mounted on multiple sides of the liquid cooling box 21.

[0068] Specifically, the liquid cooling box 21 is cubic in shape. Adjacent heat-conducting surfaces 201 are arranged perpendicularly to each other, and the included angle between adjacent heat-conducting surfaces 201 is a right angle. When the liquid cooling box 21 is of other shapes, such as a frustum or a polyhedron, the included angle between the heat-conducting surfaces 201 can also be acute or obtuse.

[0069] The liquid-cooled box 21 has six sides. Five of these sides can serve as heat-conducting surfaces 201, while the other side can have a liquid inlet 212 and a liquid outlet 213, providing outlets for lines such as the liquid inlet pipe 63, the liquid outlet pipe 64, and the cable 114. Alternatively, this side can also be used for assembly to fix the liquid-cooled box 21 to an external bracket. Alternatively, this side can also have a snap-fit ​​structure to allow the liquid-cooled boxes 21 to be spliced ​​together. Alternatively, if the liquid inlet pipe 63, the liquid outlet pipe 64, and the cable 114 do not interfere with the operation of other lamp panels 11, this side can also serve as a heat-conducting surface 201 for mounting lamp panels 11, increasing the number of lamp panels 11 that can be installed on the liquid-cooled box 21.

[0070] The individual liquid cooling boxes 10 can also be spliced ​​together to form pyramid, column, or other shapes. Multiple liquid cooling boxes 10 stacked together can form a light source that meets the design requirements of a photographic lamp. Furthermore, if one liquid cooling box 10 is damaged, only the damaged box needs to be replaced; the other boxes continue to operate, making the liquid cooling system easy to maintain and reducing maintenance costs.

[0071] The interior of the liquid-cooled box 21 can form a liquid-cooled cavity 211, or the liquid-cooled box 21 can be divided into multiple sub-liquid-cooled cavities through partitions, pipes, etc. The division of the internal liquid-cooled cavities of the liquid-cooled box 21 is not limited here, as long as each heat-conducting surface 201 of the liquid-cooled box 21 is in contact with a corresponding liquid-cooled cavity, and the heat on the heat-conducting surface 201 can be carried away by the coolant. Low-temperature coolant is introduced into the liquid-cooled box 21 through the inlet, cooling each heat-conducting surface 201 in contact with the liquid-cooled cavity. The low-temperature coolant absorbs the heat generated by the light source on the lamp panel 11 through the heat-conducting surface 201, becoming high-temperature coolant, which is then discharged from the outlet.

[0072] For details in this embodiment, please refer to Figure 3 and Figure 4 For ease of explanation, the heat-conducting surface 201 of the liquid cooling box 21 includes a first heat-conducting surface 203, a second heat-conducting surface 204, a third heat-conducting surface 205, and a fourth heat-conducting surface 206 arranged around each other and connected end to end, and a fifth heat-conducting surface 207 located at the top. The liquid inlet 212 and the liquid outlet 213 are opened at the bottom of the liquid cooling box 21.

[0073] The liquid cooling chamber 211 of the liquid cooling box 21 can be divided into a low-temperature cooling chamber and a high-temperature reflux chamber. The low-temperature cooling chamber is connected to the liquid inlet 212, and the high-temperature reflux chamber is connected to the liquid outlet 213. The low-temperature cooling chamber includes a first cooling chamber 214 distributed circumferentially around the liquid cooling chamber 211 and a second cooling chamber 215 located at the top. The first cooling chamber 214 and the second cooling chamber 215 are connected by a cooling channel 216. The first cooling chamber 214 is distributed around a first heat-conducting surface 203, a second heat-conducting surface 204, a third heat-conducting surface 205, and a fourth heat-conducting surface 206. The second cooling chamber 215 is located at the top of the liquid cooling box 21, corresponding to the fifth heat-conducting surface 207. The cooling channel 216 is located at the center of the liquid cooling box 21, extending upwards to connect the first cooling chamber 214 and the second cooling chamber 215. Fins 217 are provided in both the first cooling chamber 214 and the second cooling chamber 215.

[0074] When the low-temperature coolant enters through the inlet 212 at the bottom, it is diverted through the cooling channel 216 to the first cooling chamber 214 and the second cooling chamber 215. The coolant in the first cooling chamber 214 flows upwards along the fins 217, carrying away the heat generated by the first heat-conducting surface 203, the second heat-conducting surface 204, the third heat-conducting surface 205, and the fourth heat-conducting surface 206. It then flows out from the top of the first cooling chamber 214, becoming the first high-temperature reflux liquid. In the second cooling chamber 215, the coolant flows upwards to the fins and is diverted to both sides, carrying away the heat generated by the fifth heat-conducting surface 207. It then flows out from the periphery of the second cooling chamber 215, becoming the second high-temperature reflux liquid.

[0075] The high-temperature reflux chamber 218 is located between the first cooling chamber 214 and the second cooling chamber 215, and extends vertically. The high-temperature reflux chamber 218 is connected to both the first and second cooling chambers 214 and 215. A baffle 219 is provided between the top of the first cooling chamber 214 and the periphery of the second cooling chamber 215 in the liquid cooling box 21. The baffle 219 prevents turbulence between the first and second high-temperature reflux liquids, thus preventing them from smoothly flowing back into the high-temperature reflux chamber 218. Finally, the first and second high-temperature reflux liquids flow out through the outlet 213. The arrangement of the low-temperature cooling chamber and the high-temperature reflux chamber 218 facilitates unidirectional flow of the coolant within the liquid cooling chamber, promoting coolant circulation.

[0076] It is understandable that the shape of the liquid cooling box 21 can also be a sphere, a polyhedron, an irregular shape, etc.

[0077] See also Figure 5 and Figure 6 In other embodiments, the liquid cooling box 21 may also include multiple sub-liquid cooling boxes 22. Each sub-liquid cooling box 22 is provided with a sub-liquid cooling cavity. The multiple sub-liquid cooling boxes 22 are spliced ​​together at an incline, and can be spliced ​​together to form a pyramid shape, a sphere shape, a polyhedron shape, etc.

[0078] The sub-liquid cooling box 22 can be flat. The sub-liquid cooling box 2222 includes a first mounting plate 221 and a second mounting plate 222 disposed opposite to each other. The outer surface of the first mounting plate 221 is a heat-conducting surface 201. The lamp plate 11 can be mounted on the outer surface of the first mounting plate 221. The lamp plate 11 is detachably mounted on the heat-conducting surface 201. When one lamp plate 11 fails, only that lamp plate 11 needs to be removed and replaced; the other lamp plates 11 can continue to work normally, achieving convenient maintenance and saving maintenance costs. Specifically, the lamp plate 11 can be detachably mounted on the heat-conducting surface 201 of the liquid cooling device 20 using fastening screws 9.

[0079] A temperature sensor 202 may also be provided on the first mounting plate 221, which is used to sense the temperature of the first mounting plate 221.

[0080] The first mounting plate 221 and / or the second mounting plate 222 may have a water-receiving tank along their thickness direction. The first mounting plate 221 and the second mounting plate 222 mutually cover the water-receiving tank to form a sub-liquid cooling chamber. The sub-liquid cooling chamber is used for the passage of coolant. The second mounting plate 222 is provided with a first connecting pipe 223 and a second connecting pipe 224 communicating with the sub-liquid cooling chamber. The first connecting pipe 223 can be used to connect to coolant, and the second connecting pipe 224 can be used to discharge coolant. It can be understood that the first connecting pipe 223 can also be used to discharge coolant, and the second connecting pipe 224 can also be used to connect coolant.

[0081] The multiple sub-liquid cooling boxes 22 include multiple sub-liquid cooling cavities, which can be interconnected through a first connecting pipe 223 and a second connecting pipe 224. Furthermore, the multiple sub-liquid cooling cavities can be connected in series or in parallel.

[0082] The liquid cooling device 20 also includes a manifold 23, with an inlet 212 and an outlet 213 located on the manifold 23. The manifold 23 contains a manifold cavity, which is connected to the liquid cooling cavity. Specifically, multiple sub-liquid cooling cavities are interconnected with the manifold cavity, thus the multiple sub-liquid cooling cavities are connected in parallel through the manifold cavity.

[0083] Specifically, five sub-liquid cooling boxes 22 and one manifold box 23 are connected to each other to form a hexahedral liquid cooling device 20. The five sub-liquid cooling boxes 22 are positioned on the five sides of the hexahedron, and the manifold box 23 is located on the bottom surface of the hexahedron. The first mounting surface of the five sub-liquid cooling boxes 22 is used to mount the lamp panel 11, thus forming a three-dimensional light source 10. Adjacent sub-liquid cooling boxes 22 are arranged perpendicularly to each other, and the included angle between adjacent heat-conducting surfaces 201 is a right angle. When the liquid cooling box 21 is of other shapes, such as a frustum or a polyhedron, the included angle between adjacent liquid cooling boxes 22 can also be an acute or obtuse angle.

[0084] The manifold 23 is located at the bottom of the hexahedral liquid cooling device 20. The upper surface of the manifold 23 is provided with a first connector 231 for connecting to the first connecting pipe 223 and a second connector 232 for connecting to the second connecting pipe 224. There are multiple first connectors 231 and second connectors 232, corresponding to the first connecting pipe 223 and the second connecting pipe 224 of the five sub-liquid cooling boxes 22.

[0085] Furthermore, the first connecting pipe 223 and the second connecting pipe 224 of the sub-liquid cooling boxes 22 located on different sides both extend toward the upper surface of the manifold 23. This ensures that the first connecting pipe 223 and the second connecting pipe 224 of each sub-liquid cooling box 22 can be connected to the first connector 231 and the second connector 232 of the manifold 23.

[0086] Furthermore, the first connectors 231 and the second connectors 232 are aligned with the first connecting pipe 223 and the second connecting pipe 224 of each sub-liquid cooling box 22, so that the five sub-liquid cooling boxes 22 can be connected to form a cube shape.

[0087] The first connecting pipe 223 and the second connecting pipe 224 are rigid pipes. Furthermore, the sub-liquid cooling box 22 is supported and positioned on the manifold 23 by the first connecting pipe 223 and the second connecting pipe 224.

[0088] Furthermore, the first connecting pipe 223 is detachably connected to the first connector 231. The second connecting pipe 224 is detachably connected to the second connector 232. When one of the sub-liquid cooling boxes 22 is damaged, it is only necessary to remove the sub-liquid cooling box 22 and replace it with a new one, thus achieving convenient maintenance.

[0089] Please see Figure 7 and Figure 8 In other embodiments, the stereoscopic light source film and television light 1 further includes a base 40 and a mounting bracket 50. The mounting bracket 50 is disposed on the base 40. The base 40 can be the main body of the stereoscopic light source film and television light 1, providing support. The base 40 can be a hollow box. The mounting bracket 50 can also be a cubic structure with one open end. In this case, the open end of the mounting bracket 50 is mounted on the base 40 and communicates with the interior of the base 40. The mounting bracket 50 and / or the base 40 can be a metal frame.

[0090] The base 40 is provided with a bayonet structure 41 for mounting optical accessories. The mounting bracket 50 is located at the center of the bayonet structure 41, and the optical accessories are fitted onto the outside of the mounting bracket 50. The mounting bracket 50 is then located on the optical axis of the optical accessories.

[0091] The mounting bracket 50 has multiple mounting surfaces 51 that are inclined to each other. The sub-liquid cooling boxes 22 are mounted on each mounting surface 51 of the mounting bracket 50. The mounting bracket 50 can better support the multiple sub-liquid cooling boxes 22, so that the sub-liquid cooling boxes 22 can be stably spliced ​​together and maintain a three-dimensional shape. Therefore, the three-dimensional light source 10 relies on the mounting bracket 50 to achieve its shape.

[0092] Please see Figure 9 and Figure 10 Furthermore, the stereoscopic light source 10 of this stereoscopic light source film and television light 1 also includes a lamp housing 13. The lamp housing 13 is fitted onto the outside of the stereoscopic light source 10 to protect it. The shape of the lamp housing 13 is adapted to the shape of the stereoscopic light source 10 and the mounting bracket 50. The lamp housing 13 is also a polyhedral shape. The lamp housing 13 has a light-transmitting hole on the side corresponding to the lamp panel 11 for transmitting light emitted by the light source on the lamp panel 11.

[0093] Specifically, the mounting bracket 50 is cubic in shape. The mounting bracket 50 may have five mounting surfaces 51 and one open end. Five sub-liquid cooling boxes 22 are correspondingly mounted on the five mounting surfaces 51. The second mounting plate 222 of the sub-liquid cooling boxes 22 is provided with a first connecting pipe 223, a second connecting pipe 224, and an electrical conduit 225. The electrical conduit 225 is used to transmit the cable 114 of the lamp board 11. The mounting surface 51 is provided with a first through hole 511, a second through hole 512, and a third through hole 513. The first through hole 511 is used to pass through the first connecting pipe 223, the second through hole 512 is used to pass through the second connecting pipe 224, and the third through hole 513 is used to pass through the electrical conduit 225. Thus, the first connecting pipes 223, the second connecting pipes 224, and the electrical conduit 225 of the multiple sub-liquid cooling boxes 22 are all gathered inside the mounting bracket 50 and enter the interior of the base 40 from the open end.

[0094] It is understandable that multiple first connecting pipes 223 can be combined into one pipe, and multiple second connecting pipes 224 can also be combined into one pipe, which facilitates connection with the inlet pipe 63 and the outlet pipe 64.

[0095] The aforementioned stereoscopic light source film and television light 1 may also include an external liquid cooling box 60 and a power control device 70. The liquid cooling box 60 is independent of the liquid cooling device 20, but they are interconnected. The liquid cooling box 60 provides low-temperature coolant to the liquid cooling device 20. The coolant can be low-temperature water, low-temperature fluorinated liquid, low-temperature silicone oil, etc. The liquid cooling box 60 is independent of the liquid cooling device 20, thus not occupying its space or increasing its weight, facilitating the installation of the stereoscopic light source 10. Furthermore, the distance between the liquid cooling box 60 and the liquid cooling device 20 can be adjusted according to usage requirements, making it suitable for various applications.

[0096] The liquid cooling tank 60 is equipped with a pressure pump and a cooler. The externally mounted liquid cooling tank 60 also has an inlet pipe 63 and an outlet pipe 64. The inlet pipe 63 is connected to the inlet port 212, and the outlet pipe 64 is connected to the outlet port 213, forming a closed liquid cooling circulation loop. The pressure pump is connected to the liquid cooling circulation loop to pressurize the coolant, maintaining a high flow rate so that the coolant can quickly remove heat.

[0097] The cooler is used to provide circulating coolant for the liquid cooling unit 20. The cooler inside the liquid cooling tank 60 can be a heat exchanger 61 and a fan 62. The fan 62 is located on one side of the heat exchanger 61.

[0098] The heat exchanger 61 can be a plate heat exchanger, a tube heat exchanger, a shell and tube heat exchanger, etc. The heat exchanger 61 allows high-temperature coolant to flow on one side while cold air flows on the other side. Through heat conduction and convection, the heat in the coolant is carried away by the flowing cold air, thereby achieving the cooling of the coolant.

[0099] The fan 62 can accelerate the flow of cold air on the surface of the heat exchanger, improve the heat dissipation efficiency of the heat exchanger, and help the coolant dissipate heat to the surrounding environment more quickly.

[0100] The liquid cooling box 60 can be powered by an internal battery or an external AC power source; the power supply method for the liquid cooling box 60 is not limited here. Connecting the liquid cooling box 60 to a power source will enable the pressure pump and fan to operate.

[0101] The power control device 70 is used for external power supply connection. The power control device 70 is electrically connected to the lamp board 11 and the liquid cooling box 60, and the power control device 70 is used to supply power to the lamp board 11 and the liquid cooling box 60.

[0102] The power control device 70 can be directly electrically connected to the cable 114 of the lamp board 11. The lamp boards 11 can be connected in series or in parallel. Alternatively, the power control device 70 is equipped with a wire 31, through which it is electrically connected to the stereoscopic light source film and television light 1. The power control device 70 is electrically connected to the lamp board 11. The power control device 70 can control various operating states of the lamp board 11.

[0103] The heat-conducting surface 201 of the stereoscopic light source film and television lamp 1 is equipped with a temperature sensor 202. The temperature sensor 202 is electrically connected to the power control device 70. When the temperature information collected by the temperature sensor 202 reaches the preset temperature, which is a safe temperature to ensure the safe operation of the lamp panel 11, the liquid cooling device 20 has started to cool the heat-conducting surface 201 when the temperature drops to the safe temperature of the lamp panel 11. When the temperature drops to the safe temperature of the lamp panel 11, the power control device 70 can be controlled to turn on the stereoscopic light source 10 to ensure that the stereoscopic light source film and television lamp 1 can work normally.

[0104] Specifically, in this embodiment, the power control device 70 can also be electrically connected to the liquid cooling box 60 of the liquid cooling device to supply power to the liquid cooling box 60. The power control device 70 can also be electrically connected to the liquid cooling box 60. After the power control device 70 controls the liquid cooling box 60 to start working, it then controls the lamp board 11 to be powered on, thereby controlling the operation of the liquid cooling box 60. The power control device 70 is equipped with a wire 72, and the power control device 70 is electrically connected to the liquid cooling box 60 through the wire 32.

[0105] Specifically, in this embodiment, the power control device 70 can first control the liquid cooling tank 60 to open, causing the pressure pump and fan to start working. After the liquid cooling tank 60 is opened, after a preset time interval, the power control device 70 then controls the stereoscopic light source film and television light 1 to turn on, ensuring the normal operation of the stereoscopic light source film and television light 1.

[0106] Please see Figures 7 to 10Furthermore, a film and television lighting system is also provided. The film and television lighting system includes the aforementioned stereoscopic light source film and television light 1 and optical accessories 2.

[0107] Optical component 2 is positioned in front of the stereo light source 10. This optical component 2 can be a softbox, diffuser, diffuser cabinet, or reflector, etc. The stereo light source 10 of the stereo light source-type film and television light 1 is located on the optical axis of the optical component 2. Furthermore, the stereo light source 10 has a smaller light-emitting area perpendicular to the optical axis, thus it can approximate a point light source to the greatest extent possible. This facilitates focusing of the optical component 2 and improves its light conversion efficiency. Additionally, the mounting diameter of the optical component 2 is significantly reduced, simplifying its assembly and use. The optical component 2 can be a small reflector fitted onto the outside of the stereo light source 10 and assembled into a single unit using a lamp housing. Alternatively, the optical component 2 can be various detachable external optical components.

[0108] Please refer to Figure 11 This is a schematic diagram of another embodiment of a cooling device for a three-dimensional light source film and television lamp according to this application. The cooling device 30 is similar to the liquid cooling device 20 in terms of overall shape and the arrangement of heat-conducting surfaces. Therefore, the cooling device 30 includes multiple heat-conducting surfaces similar to those of the liquid cooling device 20, and can be used to install multiple lamp panels with different light-emitting directions. For example, the lamp panel installed on the first heat-conducting surface 303 is on the left side of the light-emitting direction diagram, the lamp panel installed on the third heat-conducting surface 305 is on the right side of the light-emitting direction diagram, and the lamp panel installed on the fifth heat-conducting surface 307 is above the light-emitting direction diagram, thereby forming a three-dimensional light source. The cooling device 30 may include a cooling rack 300 made of metal or other materials with good thermal conductivity. The outer surface of the cooling rack 300 forms the aforementioned multiple heat-conducting surfaces with different orientations. The inner surface of the cooling rack 300 is equipped with a semiconductor cooling plate 320 corresponding to each heat-conducting surface, and the cold side of the semiconductor cooling plate 320 faces or is in close contact with the heat-conducting surface and the lamp panel, while the hot side of the semiconductor cooling plate 320 is away from the heat-conducting surface. The cooling effect generated by the cold side of the thermoelectric cooler 320 can quickly lower the temperature of the lamp board, while the hot side can dissipate heat through a fan or liquid cooling. As an example, the cooling device 30 may further include a liquid-cooled box 31 disposed inside the cooling rack 300. The liquid-cooled box 31 is filled with liquid, and its outer surfaces are connected to the hot side of the thermoelectric cooler 320 for rapid liquid cooling of the hot side of the thermoelectric cooler 320. The liquid-cooled box 31 is connected to an inlet 312 and an outlet 313 to allow coolant to be introduced into the liquid-cooled box 31 for circulation before being discharged from the liquid-cooled box 31.

[0109] Although the solution described in this application is mainly based on external or partially external cooling systems, it should be understood that the film and television lights using the stereoscopic light source of this application can also integrate the external liquid cooling box, the stereoscopic light source, and the liquid cooling device into a single housing.

[0110] The above description is only a preferred embodiment of the present utility model and is not intended to limit the implementation of the present utility model. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of the present utility model. Therefore, the protection scope of the present utility model should be determined by the scope of protection claimed in the claims.

Claims

1. A three-dimensional light source for film and television lighting, characterized in that, include: Multiple light panels, each light panel including a light source and a circuit board, wherein the light source is disposed on the circuit board; and A cooling device comprising multiple heat-conducting surfaces arranged at an angle to each other, wherein at least two of the heat-conducting surfaces are fitted with the lamp panels and at least two of the lamp panels emit light in different directions.

2. The stereoscopic light source film and television light according to claim 1, characterized in that, The cooling device is a liquid cooling device, which includes a liquid cooling box. The liquid cooling box has at least one liquid cooling cavity for the flow of coolant. The liquid cooling box also has an inlet and an outlet connected to the liquid cooling cavity. The coolant enters the liquid cooling cavity through the inlet and is discharged from the outlet.

3. The stereoscopic light source film and television light according to claim 2, characterized in that, The lamp panel is detachably mounted on the heat-conducting surface.

4. The stereoscopic light source film and television light according to claim 2, characterized in that, The liquid cooling box is in the shape of a polyhedron, and the liquid inlet and the liquid outlet are located on the same side of the liquid cooling box.

5. The stereoscopic light source film and television light according to claim 4, characterized in that, The liquid cooling box includes multiple sub-liquid cooling boxes, each of which has a sub-liquid cooling cavity. The multiple sub-liquid cooling boxes are spliced ​​together at an incline. Each sub-liquid cooling box includes a first mounting plate and a second mounting plate arranged opposite to each other. The outer side of the first mounting plate is the heat-conducting surface. The second mounting plate has a first connecting pipe and a second connecting pipe that communicate with the sub-liquid cooling cavity.

6. The stereoscopic light source film and television light according to claim 5, characterized in that, The liquid cooling device also includes a manifold, on which the liquid inlet and the liquid outlet are located. The manifold has a manifold cavity inside, which is connected to the liquid cooling cavity.

7. The stereoscopic light source film and television light according to claim 5, characterized in that, It also includes a mounting bracket, which has multiple mounting surfaces that are inclined to each other, and the second mounting plate of the sub-liquid cooling box is mounted on the mounting surface.

8. The stereoscopic light source film and television light according to claim 7, characterized in that, The second mounting plate of the sub-liquid cooling box is also provided with a circuit conduit for the cable passing through the lamp board. The mounting surface is provided with a first through hole, a second through hole and a third through hole. The first through hole is used to pass through the first connecting pipe, the second through hole is used to pass through the second connecting pipe, and the third through hole is used to pass through the circuit conduit.

9. The stereoscopic light source film and television light according to claim 7, characterized in that, It also includes a base, on which the mounting bracket is mounted, and the base is provided with a bayonet structure for detachable connection of optical accessories.

10. The stereoscopic light source type film and television light according to claim 2, characterized in that, The liquid cooling box is a single-piece structure.

11. The stereoscopic light source type film and television light according to any one of claims 2-10, characterized in that, It also includes a liquid cooling tank, which is equipped with a cooler and a pressure pump. The liquid cooling tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is connected to the inlet port, and the outlet pipe is connected to the outlet port. The cooler is used to provide circulating coolant for the liquid cooling device, and the pressure pump is connected to the circulating coolant.

12. The stereoscopic light source type film and television light according to claim 11, characterized in that, It also includes a power control device, which is electrically connected to the lamp panel and the liquid cooling box, and is used to supply power to the lamp panel and the liquid cooling box.

13. The stereoscopic light source film and television light according to claim 12, characterized in that, The power control device is electrically connected to the lamp board and the liquid cooling box respectively. After the power control device controls the liquid cooling box to start working, it then controls the lamp board to be powered on.

14. The stereoscopic light source film and television light according to claim 1, characterized in that, The cooling device includes multiple semiconductor cooling plates, with the cold side of the semiconductor cooling plates facing the lamp plate and the hot side of the semiconductor cooling plates facing away from the lamp plate.

15. A film and television lighting system, characterized in that, include: The stereoscopic light source film and television lamp according to any one of claims 1-14; An optical accessory is disposed in front of the stereoscopic light source film and television light, and the stereoscopic light source film and television light is located on the optical axis of the optical accessory.

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