Liquid cooling device and photographing light source

Abstract

The utility model provides a liquid cooling device and a photographing light source. A liquid cooling device comprises a plurality of liquid cooling boxes. And the liquid cooling boxes are mutually spliced and connected. The liquid cooling box comprises a bottom shell and a top cover, and the top cover covers the bottom shell and forms a liquid cooling cavity. The outer surface of the top cover is a heat conduction face used for assembling a lamp panel, the bottom shell is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the liquid cooling cavity. The liquid cooling device and the photographing light source are convenient to maintain.

Description

Technical Field

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

[0002] Currently, photographic lighting sources can generally be divided into LED lights and thermal light sources. Thermal light sources can include incandescent lamps, halogen lamps, etc. Due to their advantages such as smaller size and faster response, LED lights are gradually replacing traditional thermal light sources.

[0003] LED lighting fixtures typically integrate multiple LED chips onto a single circuit board, forming a light source board. The power output of an LED lighting fixture is often limited by the number of LED chips. For higher-power LED lights, such as kilowatt-level LED photography lights, more LED chips are required, resulting in a larger chip layout area. In these higher-power LED lighting fixtures, air cooling is often insufficient to meet the heat dissipation requirements, necessitating liquid cooling. Large-area liquid cooling requires extensive liquid cooling piping and a complex liquid cooling system. When a section of the liquid cooling piping needs repair, the entire piping or cooling system must be replaced, increasing maintenance costs and complexity. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and to propose a liquid cooling device and photographic light source that is easy to maintain.

[0005] A liquid cooling device includes multiple liquid cooling boxes connected to each other. Each liquid cooling box includes a bottom shell and a top cover. The top cover seals the bottom shell and forms a liquid cooling cavity. The outer surface of the top cover is a heat-conducting surface for mounting a lamp panel. The bottom shell is provided with a liquid inlet and a liquid outlet, which are connected to the liquid cooling cavity.

[0006] In one embodiment, the liquid cooling cavities between the plurality of liquid cooling boxes are interconnected.

[0007] In one embodiment, the plurality of liquid cooling boxes are located in the same plane.

[0008] In one embodiment, two adjacent liquid cooling boxes are arranged at an angle.

[0009] In one embodiment, a manifold is also included, which has a main liquid inlet and a main liquid outlet, and a manifold cavity is provided inside the manifold, which is connected to the liquid cooling cavity.

[0010] In one embodiment, the liquid cooling box has a first connecting pipe at its inlet and a second connecting pipe at its outlet. The surface of the manifold is provided with a first connector for connecting to the first connecting pipe and a second connector for connecting to the second connecting pipe. The first connecting pipe and the second connecting pipe are rigid pipes. The liquid cooling box is positioned on the manifold through the first connecting pipe and the second connecting pipe.

[0011] In one embodiment, a mounting bracket is also included, the mounting bracket having a mounting surface, and the bottom shell of the liquid cooling box is mounted on the mounting surface.

[0012] In one embodiment, the bottom shell of the sub-liquid cooling box is provided with a first connecting pipe communicating with the liquid inlet, a second connecting pipe communicating with the liquid outlet, and an electrical 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 electrical conduit.

[0013] In one embodiment, an external liquid cooling tank is also included. The external liquid cooling tank includes a pressure pump, 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 pressure pump, the inlet pipe, the liquid cooling chamber, and the outlet pipe form a closed loop for the coolant. The external liquid cooling tank is used to provide circulating coolant for the liquid cooling device.

[0014] A photographic light source, comprising:

[0015] Multiple light panels, each light panel including a light source and a circuit board, the light source being disposed on the circuit board; and

[0016] In the aforementioned liquid cooling device, the lamp panel is detachably mounted on the heat-conducting surface.

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

[0018] In the photographic light source provided in the embodiment, the liquid cooling device carries away the heat of the lamp panel through the flowing coolant, ensuring that the heat of each part of the lamp panel can be dissipated in a timely manner, thereby improving the heat dissipation effect of the photographic light source.

[0019] Furthermore, in the above-mentioned liquid cooling device, when one of the multiple interconnected liquid cooling boxes malfunctions and needs maintenance, it is only necessary to disassemble and replace the damaged liquid cooling box, while the other liquid cooling boxes can continue to be used normally, saving maintenance costs and facilitating the maintenance operation of the liquid cooling device.

[0020] Therefore, the size of the aforementioned liquid cooling device can be customized by combining multiple liquid cooling boxes according to design requirements, making it easier to adapt to the heat dissipation needs of light panels of different sizes. For photographic light sources with operating power reaching thousands of watts, the light panel area is relatively large, and this liquid cooling device can easily meet their heat dissipation requirements. Attached Figure Description

[0021] Figure 1 This is a perspective view of a photographic light source according to this embodiment;

[0022] Figure 2 yes Figure 1 An exploded view of the liquid cooling device shown;

[0023] Figure 3 yes Figure 2 An exploded view of another embodiment of the liquid cooling device shown;

[0024] Figure 4 yes Figure 2 An exploded view of another embodiment of the liquid cooling device shown;

[0025] Figure 5 yes Figure 4 An exploded view of the liquid cooling device from another angle;

[0026] Figure 6 yes Figure 2 A perspective view of another embodiment of the liquid cooling device shown.

[0027] The reference numerals in the attached figures are explained as follows:

[0028] 1. Liquid cooling device; 10. Liquid cooling box; 11. Bottom shell; 123. First connecting pipe; 124. Second connecting pipe; 125. Circuit piping; 12. Top cover; 13. Heat-conducting surface; 14. Liquid inlet; 15. Liquid outlet; 16. Manifold; 161. First connector; 162. Second connector; 163. Main liquid inlet; 164. Main liquid outlet; 17. Mounting bracket; 170. Mounting surface; 171. First through hole; 172. Second through hole; 173. Third through hole; 175. Interface; 18. External liquid cooling box; 183. Liquid inlet pipe; 184. Liquid outlet pipe; 182, 185. Wires;

[0029] 2. Lamp panel; 21. Cable; 22. Lampshade; 23. Light transmission hole;

[0030] 3. Power control device. Detailed Implementation

[0031] 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.

[0032] 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. Although 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.

[0033] 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.

[0034] Please see Figure 1 and Figure 2 This embodiment provides a photographic light source and a liquid cooling device. The photographic light source includes a liquid cooling device 1 and a lamp plate 2. The lamp plate 2 is mounted on the liquid cooling device 1. The liquid cooling device 1 is used to dissipate heat from the lamp plate 2 to ensure the heat dissipation effect of the photographic light source.

[0035] The liquid cooling device 1 includes multiple liquid cooling boxes 10. These boxes 10 are interconnected. Each liquid cooling box 10 includes a bottom shell 11 and a top cover 12. The top cover seals the bottom shell 11 and forms a liquid cooling cavity for the flow of coolant. The outer surface of the top cover is a heat-conducting surface 13 for mounting the lamp panel 2. The bottom shell 11 has an inlet 14 and an outlet 15, which communicate with the liquid cooling cavity. Coolant enters the liquid cooling cavity through the inlet 14 and exits through the outlet 15. The flowing coolant within the liquid cooling cavity dissipates heat from the light source on the heat-conducting surface.

[0036] In the above-mentioned liquid cooling device 1, when one of the liquid cooling boxes 10 malfunctions and needs to be maintained, it is only necessary to disassemble and replace the damaged liquid cooling box 10, while the other liquid cooling boxes 10 can continue to be used normally, which saves maintenance costs and facilitates the maintenance operation of the liquid cooling device 1.

[0037] The lamp board 2 can be mounted on the heat-conducting surface 13, facilitating heat transfer from the lamp board 2 via the heat-conducting surface 13. The lamp board 2 includes a light source and a circuit board, with the light source integrated into the circuit board. The heat generated by the light source is transferred to the heat-conducting surface 13 via the circuit board, and then carried away by the flowing coolant in the liquid-cooling cavity. The light source can be LED beads, LED chips, laser light sources, etc. When the light source is an LED chip, COB (chip on board) technology can be used to directly integrate the LED chip onto the circuit board. Therefore, the lamp board 2 can also be a COB board. When the light source is lit, it generates heat, which is transferred to the circuit board. The LED chips are evenly arranged on the circuit board, and the arrangement shape of the LED chips corresponds to the shape of the light-emitting surface of the lamp board 2. The arrangement shape of the LED chips can be rectangular, circular, etc.

[0038] The lamp panel 2 is detachably mounted on the heat-conducting surface 13. When one of the lamp panels 2 fails, only that lamp panel 2 needs to be removed and replaced, while the other lamp panels 2 can continue to work normally, achieving convenient maintenance and saving maintenance costs. Specifically, the lamp panel 2 can be detachably mounted on the heat-conducting surface 13 of the liquid cooling device 1 by means of fastening screws 9.

[0039] The photographic light source also includes a power control device 3 for supplying power to the light panel 2. The power control device 3 is electrically connected to the light panel 2. The light panel 2 can be electrically connected to the power control device 3 via cables 21 on its circuit board. The power control device 3 can also supply power to the liquid cooling device 1, and the power control device 3 can also be electrically connected to the liquid cooling device 1 via wire 182.

[0040] The liquid-cooled box 10 can be flat. The bottom shell 11 and the top cover 12 are positioned opposite each other. The heat-conducting surface 13 of the top cover 12 is used to conduct the temperature of the lamp plate 2.

[0041] The top cover 12 and / or the bottom shell 11 may be provided with a water-receiving tank along the thickness direction. The top cover 12 and the bottom shell 11 cover each other to form a liquid cooling chamber. The liquid cooling chamber is used for the passage of coolant.

[0042] The bottom shell 11 is provided with a first connecting pipe 123 and a second connecting pipe 124 that communicate with the liquid cooling chamber. The first connecting pipe 123 can be used to connect to coolant, and the second connecting pipe 124 can be used to discharge coolant. It can be understood that the first connecting pipe 123 can also be used to discharge coolant, and the second connecting pipe 124 can also be used to connect coolant.

[0043] The liquid cooling cavities of the multiple liquid cooling boxes 10 are interconnected. The multiple liquid cooling boxes 10 can be interconnected via a first connecting pipe 123 and a second connecting pipe 124. Furthermore, the multiple liquid cooling cavities can be connected in series or in parallel.

[0044] Multiple liquid cooling boxes 10 can be tilted and spliced ​​together, and the multiple heat-conducting surfaces 13 of the multiple liquid cooling boxes 10 can be arranged at an angle. Multiple liquid cooling boxes 10 can be spliced ​​together to form a three-dimensional structure, such as a pyramid shape, a sphere shape, a polyhedron shape, etc.

[0045] In one embodiment, the liquid cooling device 1 further includes a manifold 16, with a main liquid inlet 163 and a main liquid outlet 164 disposed on the manifold 16. The manifold 16 has a manifold cavity that communicates with the liquid cooling cavity. Specifically, multiple liquid cooling cavities are interconnected with the manifold cavity, thus the multiple liquid cooling cavities are connected in parallel through the manifold cavity.

[0046] Specifically, adjacent liquid cooling boxes 10 are arranged perpendicularly to each other. Five liquid cooling boxes 10 and one manifold box 16 are spliced ​​together to form a hexahedral liquid cooling device 1. The five liquid cooling boxes 10 are respectively located on the five sides of the hexahedron, and the manifold box 16 is located on the bottom surface of the hexahedron.

[0047] The manifold 16 is located at the bottom of the hexahedral liquid cooling device 1. The upper surface of the manifold 16 is provided with a first connector 161 for connecting to the first connecting pipe 123 and a second connector 162 for connecting to the second connecting pipe 124. There are multiple first connectors 161 and second connectors 162, corresponding to the first connecting pipe 123 and the second connecting pipe 124 of the five liquid cooling boxes 10, respectively.

[0048] Furthermore, the first connecting pipe 123 and the second connecting pipe 124 of the liquid cooling boxes 10 located on different sides both extend toward the upper surface of the manifold 16. This ensures that the first connecting pipe 123 and the second connecting pipe 124 of each liquid cooling box 10 can be connected to the first connector 161 and the second connector 162 of the manifold 16.

[0049] Furthermore, the multiple first connectors 161 and multiple second connectors 162 are aligned with the docking positions of the first connecting pipe 123 and the second connecting pipe 124 of each liquid cooling box 10, so that the five liquid cooling boxes 10 can be docked to form a cube shape.

[0050] The first connecting pipe 123 and the second connecting pipe 124 are rigid pipes. Furthermore, the liquid cooling box 10 is supported and positioned on the manifold 16 by the first connecting pipe 123 and the second connecting pipe 124.

[0051] Furthermore, the first connecting pipe 123 is detachably connected to the first connector 161. The second connecting pipe 124 is detachably connected to the second connector 162. When one of the liquid cooling boxes 10 is damaged, it is only necessary to remove the liquid cooling box 10 and replace it with a new one, thus achieving convenient maintenance.

[0052] It is understandable that the angle between two adjacent liquid cooling boxes 10 can be acute or obtuse. There is no limitation on the tilt angle between the liquid cooling boxes 10 here.

[0053] Please see Figure 3 In other embodiments, the liquid cooling device 1 may also include a mounting bracket 17. The mounting bracket 17 may be a cubic structure with one open end. The open end of the mounting bracket 17 is used to lead out water pipes and electrical wiring. The mounting bracket 17 may be a metal frame.

[0054] The mounting bracket 17 has multiple mounting surfaces 170 that are inclined to each other. The liquid cooling boxes 10 are mounted on each mounting surface 170 of the mounting bracket 17. The mounting bracket 17 can better support multiple liquid cooling boxes 10, so that the liquid cooling boxes 10 can be stably spliced ​​together and maintain their three-dimensional shape.

[0055] Specifically, the mounting bracket 17 is cubic in shape. Since two adjacent mounting surfaces 170 are perpendicular to each other, two adjacent liquid cooling boxes 10 are also perpendicular to each other.

[0056] The mounting bracket 17 may have five mounting surfaces 170 and one open end. Five liquid-cooled boxes 10 are correspondingly mounted on the five mounting surfaces 170. The bottom shell 11 of the liquid-cooled box 10 is provided with a first connecting pipe 123, a second connecting pipe 124, and an electrical conduit 125. The electrical conduit 125 is used to pass through the cable 21 of the lamp board 2. The mounting surface 170 is provided with a first through hole 171, a second through hole 172, and a third through hole 173. The first through hole 171 is used to pass through the first connecting pipe 123, the second through hole 172 is used to pass through the second connecting pipe 124, and the third through hole 173 is used to pass through the electrical conduit 125. Thus, the first connecting pipes 123, the second connecting pipes 124, and the electrical conduit 125 of the multiple liquid-cooled boxes 10 are all gathered inside the mounting bracket 17 and led out from the open end.

[0057] It is understandable that multiple first connecting pipes 123 can be combined into one pipe, and multiple second connecting pipes 124 can also be combined into one pipe, which facilitates connection with the inlet pipe 183 and the outlet pipe 184. Multiple circuit pipes 125 can also be combined into one pipe, which facilitates electrical connection with the wire 185.

[0058] Please see Figure 4 and Figure 5 In other embodiments, multiple liquid cooling boxes 10 are spliced ​​in parallel to form a plane, so that the heat-conducting surface 13 of the liquid cooling device 1 is located on the same plane. The lamp plate 2 is disposed on the heat-conducting surface 13. Furthermore, a lamp cover 22 is provided in front of the lamp plate 2. A light-transmitting hole 23 is provided on the lamp cover 22, which corresponds to the light-emitting surface of the lamp plate 2.

[0059] Specifically, the mounting bracket 17 can also be a plate-like structure, in which case the mounting surfaces 170 of the mounting bracket 17 are located in the same plane. The liquid cooling boxes 10 are then assembled in a planar manner and placed on the mounting surface 170. When multiple liquid cooling boxes 10 are assembled in a planar manner, the luminous surface of the resulting photographic lamp is planar. Three interfaces 175 are integrated on the side of the mounting bracket 17 facing away from the mounting surface, which are respectively connected to the inlet pipe 183, the outlet pipe 184, and the wire 185.

[0060] Please see Figure 6 It is understood that the shape of the liquid cooling box 10 is not limited to a flat shape, but can also be a three-dimensional shape, such as a regular hexahedron. Therefore, the individual liquid cooling boxes 10 can be spliced ​​together to form pyramids, columns, and other shapes. Multiple liquid cooling boxes 10 stacked together can form a light source that meets the design requirements of a photographic lamp. Furthermore, when one liquid cooling box 10 is damaged, only the damaged liquid cooling box 10 needs to be replaced; the other liquid cooling boxes 10 continue to operate, making the liquid cooling device easy to maintain and reducing maintenance costs.

[0061] Please see Figure 1 The liquid cooling device 1 may also include an external liquid cooling box 18. The external liquid cooling box is independent of the liquid cooling device 1. Furthermore, the external liquid cooling box and the liquid cooling device 1 are interconnected via an inlet pipe 183 and an outlet pipe 184. The external liquid cooling box provides low-temperature coolant to the liquid cooling device 1. The coolant can be low-temperature water, low-temperature fluorinated liquid, low-temperature silicone oil, etc. The external liquid cooling box is independent of the liquid cooling device 1, does not occupy space in the liquid cooling device 1, and does not increase the weight of the liquid cooling device 1, facilitating the placement of the three-dimensional light source 10. Moreover, the distance between the external liquid cooling box and the liquid cooling device 1 can be adjusted according to usage requirements, making it suitable for various applications.

[0062] An external liquid cooling tank is used to provide circulating coolant for the liquid cooling device 1. The external liquid cooling tank is equipped with a pressure pump (not shown), an inlet pipe 183, and an outlet pipe 184. The inlet pipe 183 is connected to the inlet port 14, and the outlet pipe 184 is connected to the outlet port 15. The pressure pump, the inlet pipe, the liquid cooling chamber, and the outlet pipe form a closed-loop circulation circuit for the coolant. The pressure pump is connected to the circulation circuit and is used to pressurize the coolant, maintaining a high flow rate so that the coolant can quickly remove heat.

[0063] The external liquid cooling box is connected to the liquid cooling housing 10 via an extended inlet pipe 183 and outlet pipe 184, enabling a separate design between the liquid cooling housing 10 and the external liquid cooling box. The weight of the external liquid cooling box does not affect the weight of the liquid cooling housing 10, making the liquid cooling housing 10 more lightweight. When installing the photography light, only the lightweight liquid cooling housing 10 needs to be fixedly installed, facilitating the setting of the installation position of the liquid cooling housing 10 according to the usage requirements. This also reduces the area of ​​the liquid cooling housing.

[0064] The external liquid cooling box can be powered by an internal battery or external AC power; the power supply method for the external liquid cooling box is not limited here. Connecting the external liquid cooling box to a power source enables the pressure pump to operate.

[0065] 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 liquid cooling device, characterized in that, It includes multiple liquid cooling boxes that are spliced ​​and connected to each other. Each liquid cooling box includes a bottom shell and a top cover. The top cover covers the bottom shell and forms a liquid cooling cavity. The outer surface of the top cover is a heat-conducting surface for mounting a lamp panel. The bottom shell is provided with a liquid inlet and a liquid outlet, which are connected to the liquid cooling cavity.

2. The liquid cooling device according to claim 1, characterized in that, The liquid cooling cavities of the multiple liquid cooling boxes are interconnected.

3. The liquid cooling device according to claim 1, characterized in that, Multiple liquid cooling boxes are located in the same plane.

4. The liquid cooling device according to claim 1, characterized in that, The two adjacent liquid cooling boxes are arranged at an angle.

5. The liquid cooling device according to claim 1, characterized in that, It also includes a manifold, which has a main liquid inlet and a main liquid outlet, and a manifold cavity inside the manifold, which is connected to the liquid cooling cavity.

6. The liquid cooling device according to claim 5, characterized in that, The liquid cooling box has a first connecting pipe at its inlet and a second connecting pipe at its outlet. The surface of the manifold is provided with a first connector for connecting to the first connecting pipe and a second connector for connecting to the second connecting pipe. The first connecting pipe and the second connecting pipe are rigid pipes. The liquid cooling box is positioned on the manifold through the first connecting pipe and the second connecting pipe.

7. The liquid cooling device according to claim 1, characterized in that, It also includes a mounting bracket, which has a mounting surface, and the bottom shell of the liquid cooling box is mounted on the mounting surface.

8. The liquid cooling device according to claim 7, characterized in that, The bottom shell of the liquid cooling box is provided with a first connecting pipe communicating with the liquid inlet, a second connecting pipe communicating with the liquid outlet, and 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 liquid cooling device according to claim 1, characterized in that, It also includes an external liquid cooling box, which includes a pressure pump, 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 pressure pump, the inlet pipe, the liquid cooling chamber and the outlet pipe form a closed loop of coolant circulation. The external liquid cooling box is used to provide circulating coolant for the liquid cooling device.

10. A photographic light source, 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 The liquid cooling device according to any one of claims 1-9, wherein the lamp plate is detachably mounted on the heat-conducting surface.

Images