Photography lamp

Abstract

The utility model belongs to the field of photographic technical equipment, and particularly relates to a photographic lamp. The photoflood lamp comprises a radiator main body, the radiator main body is provided with a water outlet and a water inlet, and the water outlet and the water inlet are both communicated with a cooling liquid box; the circuit board is detachably connected to the radiator main body, and the circuit board is provided with a heating component; the light source plate is electrically connected with the circuit board and provided with lamp beads, and the circuit board is used for driving the lamp beads to emit light; the liquid cooling strip is internally provided with a heat dissipation flow channel and is connected to the circuit board, and the heating component is in contact with the liquid cooling strip; one ends of the two liquid cooling pipes are respectively connected with the water outlet and the water inlet, and the other ends of the two liquid cooling pipes are respectively detachably connected with the two ends of the liquid cooling strip and are communicated with the heat dissipation flow channel. According to the utility model, when the circuit board needs to be maintained, the two liquid cooling pipes connected to the liquid cooling strip can be rapidly disassembled, and then the circuit board is disassembled from the radiator main body, so that the convenience of the maintenance of the circuit board is improved.

Description

Technical Field

[0001] This utility model belongs to the field of photographic technology equipment, and in particular relates to a photographic lamp. Background Technology

[0002] Currently, traditional air-cooling solutions are no longer sufficient to meet the heat dissipation requirements of point light sources in high-power photography lights. Water-cooled radiators are usually installed in high-power photography lights to dissipate heat from heat-generating components.

[0003] Traditional air-cooling solutions typically involve an aluminum heatsink attached to the surface of the heat-generating component, with a fan forcing convection to remove heat. This approach offers flexibility in layout. Water-cooling, on the other hand, requires a water-cooling plate or block. The heat-generating component is attached to the plate or block, and liquid circulates inside the block to dissipate heat. For single, planar heat-generating components, the water-cooling block is relatively easy to disassemble and assemble.

[0004] However, if a PCB circuit board is present, the disassembly and assembly of the water cooling head becomes more complicated. The positional relationship between the water cooling head and the electronic components on the circuit board is also more complex, which makes the disassembly and maintenance of the circuit board more difficult. Utility Model Content

[0005] The purpose of this application is to provide a photographic lamp that addresses the problem of heat dissipation from a circuit board and improves the convenience of disassembly and maintenance of the circuit board.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a photographic light, which includes:

[0007] The radiator body has a coolant tank, and the radiator body has an outlet and an inlet, both of which are connected to the coolant tank.

[0008] A circuit board detachably connected to the heat sink body, the circuit board having heat-generating components;

[0009] A light source board is electrically connected to the circuit board and has LED beads installed thereon. The circuit board is used to drive the LED beads to emit light.

[0010] A liquid cooling strip, which has heat dissipation channels and is connected to the circuit board, and the heat-generating components are in contact with the liquid cooling strip;

[0011] The liquid cooling pipes are at least two in number. One end of each liquid cooling pipe is connected to the water outlet and the water inlet, respectively. The other end of each liquid cooling pipe is detachably connected to both ends of the liquid cooling strip and is connected to the heat dissipation channel.

[0012] In some embodiments, the number of heat-generating components is multiple, and the liquid cooling strip includes a main body extending along a first direction and having the heat dissipation channel, with multiple heat-generating components distributed along the first direction on the main body.

[0013] In some embodiments, the liquid cooling strip further includes one or more branches extending along a second direction, the main body is connected to the branches, the heating element is arranged on the branches, and the first direction is perpendicular to the second direction.

[0014] In some embodiments, the heat-generating component includes a MOSFET.

[0015] In some embodiments, quick-release male connectors are provided at both ends of the liquid cooling strip, and quick-release female connectors are provided on both liquid cooling pipes, with the two quick-release male connectors respectively inserted into the two quick-release female connectors.

[0016] In some embodiments, any of the quick-release male connectors is provided with an automatic sealing valve, and / or any of the quick-release female connectors is provided with the automatic sealing valve.

[0017] In some embodiments, the liquid cooling pipe includes a first pipe segment and a second pipe segment connected to the first pipe segment. The first pipe segment is connected to the radiator body, and the second pipe segment is connected to the liquid cooling bar. The length directions of the first pipe segment and the second pipe segment are arranged alternately.

[0018] In some embodiments, the circuit board has a rear panel facing the heat sink body and a front panel facing away from the heat sink body, with the second pipe segment located on the front panel.

[0019] In some embodiments, the first pipe segment is a flexible hose and the second pipe segment is a rigid pipe.

[0020] In some embodiments, the photographic light further includes a fastener for securing the connection between the first pipe segment and the second pipe segment.

[0021] The beneficial effects of this application are as follows: by connecting one end of two liquid cooling pipes to the water outlet and the water inlet respectively, and then detachably connecting the other end of the liquid cooling pipes to both ends of the liquid cooling strip, and the circuit board and the heat sink body can also be detachably connected, not only can the circuit board be vented and cooled, but also when the circuit board needs to be maintained, the two liquid cooling pipes connected to the liquid cooling strip can be quickly disconnected, and the circuit board can be removed from the heat sink body, thereby improving the convenience of circuit board maintenance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the photographic lamp provided in this application, in which the heat sink body and circuit board are detachably connected and both liquid cooling pipes are separated from the liquid cooling strip.

[0024] Figure 2 yes Figure 1 A schematic diagram of the connection between the circuit board and the liquid cooling strip.

[0025] The following are the labeling elements in the figure:

[0026] 10. Radiator body; 11. Outlet; 12. Inlet; 20. Circuit board; 21. Heating components; 30. Liquid cooling pipe; 31. First pipe section; 32. Second pipe section; 40. Liquid cooling bar; 41. Branch section; 42. Quick-release male connector; 43. Fastener; 44. Automatic sealing valve; 45. Main body; Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. 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. "A plurality" means two or more, unless otherwise explicitly defined.

[0029] Please see Figures 1 to 2This application provides a photographic lamp, which includes: a heat sink body 10, a circuit board 20, a light source board, a liquid cooling pipe 30, and a liquid cooling strip 40.

[0030] Please see Figures 1 to 2 The radiator body 10 has a coolant tank containing coolant, which can be water or an aqueous solution. The radiator body 10 has an outlet 11 and an inlet 12, both of which are connected to the coolant tank. It is understood that the coolant can flow out of the coolant tank from the outlet 11 and flow into the coolant tank from the inlet 12.

[0031] Please see Figures 1 to 2 The circuit board 20 is detachably connected to the heat sink body 10 and located at one end of the heat sink body 10. The circuit board 20 has a heat-generating component 21. The connection between the circuit board 20 and the heat sink body 10 can be achieved by screw connection, for example, by making threaded holes in the heat sink body 10 and making through holes in the circuit board 20 at the corresponding positions of the threaded holes, and then screwing the circuit board 20 onto the heat sink body 10. Alternatively, a snap-fit ​​structure can be used to detachably snap the circuit board 20 onto the heat sink body 10. It is understood that the heat-generating component 21 includes capacitors, resistors, transistors, and integrated circuit chips disposed on the circuit board 20, and the heat-generating component 21 generates heat during operation.

[0032] The light source board and circuit board 20 are electrically connected and have LED beads installed on them. The circuit board 20 is connected to a power source and supplies power to the light source board. It is also used to control and drive the LED beads to emit light. The LED beads can be LED beads.

[0033] Please see Figures 1 to 2 The liquid cooling strip 40 has heat dissipation channels and is connected to and laid on the circuit board 20. The heat-generating components 21 are in contact with the liquid cooling strip 40. The heat generated by the circuit board 20 and the heat-generating components 21 during operation can be conducted to the liquid cooling strip 40 and dissipated through the liquid cooling strip 40.

[0034] Please see Figures 1 to 2 There are at least two liquid cooling pipes 30. One end of each liquid cooling pipe 30 is connected to the outlet 11 and the inlet 12, respectively. The other ends of each liquid cooling pipe 30 are detachably connected to both ends of the liquid cooling strip 40 and are connected to the heat dissipation channel. This allows the low-temperature coolant in the coolant tank to flow into one of the liquid cooling pipes 30 through the outlet 11. The coolant flows through the liquid cooling pipe 30 into the heat dissipation channel and absorbs the heat conducted to the liquid cooling strip 40. After absorbing heat, the coolant heats up. The high-temperature coolant flows through the other liquid cooling pipe 30 to the inlet 12 and then flows into the coolant tank through the inlet 12. The radiator body 10 dissipates the heat of the high-temperature coolant and forms a low-temperature coolant, thus circulating the coolant.

[0035] The photographic lamp provided in this application embodiment connects one end of two liquid cooling pipes 30 to the outlet 11 and the inlet 12 respectively, and then detaches the other end of the liquid cooling pipes 30 to both ends of the liquid cooling strip 40. The circuit board 20 is also detachably connected to the heat sink body 10. This not only dissipates heat from and cools the circuit board, but also allows for quick disconnection of the two liquid cooling pipes 30 connected to the liquid cooling strip 40 and removal of the circuit board 20 from the heat sink body 10 when maintenance of the circuit board 20 is required, thereby improving the convenience of maintaining the circuit board 20.

[0036] Optionally, the circuit board 20 can be a PCB board.

[0037] Please see Figures 1 to 2 Optionally, the liquid cooling strip 40 can also be detachably fixed to the circuit board 20 by screws. Multiple heat-generating components 21 are arranged at intervals on the circuit board 20, with the liquid cooling strip 40 arranged in the middle of each heat-generating component 21. Alternatively, some heat-generating components 21 can be directly arranged on the liquid cooling strip 40.

[0038] Optionally, the liquid cooling strip 40 can be made of metal, such as copper, aluminum, or aluminum alloy. In this embodiment, the liquid cooling strip 40 is made of aluminum alloy. In other embodiments, the material can be selected according to the actual situation, and no limitation is made here.

[0039] The aluminum alloy liquid cooling bar 40 has the following characteristics:

[0040] Aluminum alloy has high thermal conductivity, which can effectively and quickly conduct the heat generated inside the photographic lamp to the surface of the liquid cooling strip 40, thereby improving heat dissipation efficiency. When the LED chips are outputting high power, they easily generate a large amount of heat. The aluminum alloy liquid cooling strip 40 can quickly remove this heat through the coolant, maintaining stable operation of the equipment.

[0041] Aluminum alloy has a low density and is lightweight. While maintaining heat dissipation performance, it can reduce the overall weight of the photography light, making it easier to carry.

[0042] Aluminum alloys have strong corrosion resistance, and a dense oxide film can be formed on the surface to prevent corrosive substances such as moisture and salt in the air from damaging the equipment. Therefore, during use, the liquid cooling bar 40 can resist the corrosion of the coolant and improve its service life.

[0043] Aluminum alloys also have good machinability, allowing them to be customized into suitable shapes according to specific heat dissipation requirements.

[0044] Please see Figures 1 to 2In some embodiments, the number of heat-generating components 21 is multiple, and the liquid cooling strip 40 includes a main body 45 extending along a first direction and having a heat dissipation channel, with multiple heat-generating components 21 distributed along the first direction on the main body 45.

[0045] Please see Figures 1 to 2 Optionally, two liquid cooling pipes 30 are detachably connected to both ends of the main stem 45. Coolant flows into the main stem 45 from one of the liquid cooling pipes 30 and absorbs heat, then flows from the main stem 45 into the other liquid cooling pipe 30, and finally into the coolant tank. Multiple heat-generating components 21 are spaced apart on the main stem 45, which can quickly conduct heat to the main stem 45 and evenly distribute heat to the main stem 45, avoiding local overheating.

[0046] Please see Figures 1 to 2 In some embodiments, the liquid cooling strip 40 further includes one or more branches 41 extending along the second direction, the main body 45 is connected to the branch 41, and a heating element 21 is arranged on the branch 41, with the first direction perpendicular to the second direction.

[0047] Please see Figures 1 to 2 Optionally, by adding one or more branches 41 to the main stem 45, the heat absorption and heat dissipation range of the liquid cooling strip 40 can be increased. Multiple branches 41 can make the liquid cooling strip 40 form different shapes, so that the liquid cooling strip 40 can meet different heat dissipation requirements and improve the flexibility of heat dissipation.

[0048] Optionally, in this embodiment, multiple branches 41 are provided, with branches 41 arranged on both sides of the main stem 45 along the direction parallel to the circuit board 20. By extending the branches 41 to different positions on the circuit board 20, the heat generated by the heat-generating components 21 and the circuit board 20 can be quickly absorbed, thereby improving the heat dissipation coverage and heat dissipation capacity.

[0049] Please see Figures 1 to 2 In some embodiments, the heat-generating component 21 includes a MOSFET, which is an insulated-gate field-effect transistor with a higher input impedance than a junction field-effect transistor. It is also simpler to manufacture, more flexible and convenient to use, and conducive to high integration.

[0050] Please see Figures 1 to 2 In some embodiments, quick-release male connectors 42 are provided at both ends of the liquid cooling strip 40, and quick-release female connectors are provided on both liquid cooling pipes 30. The two quick-release male connectors 42 are respectively inserted into the two quick-release female connectors.

[0051] Optionally, the quick-release male connector 42 and quick-release female connector improve the ease of disassembling or assembling the liquid cooling pipe 30 and the liquid cooling strip 40. When the circuit board 20 needs maintenance or replacement, the quick-release male connector 42 and quick-release female connector can be quickly separated, and then the quick-release male connector 42 and quick-release female connector can be quickly plugged in without complicated tools, thus improving ease of use.

[0052] Please see Figures 1 to 2 It is also understandable that the quick-release female connector could be placed on the liquid cooling strip 40, while the quick-release male connector 42 could be placed on the liquid cooling tube 30. There are no restrictions here, and the choice can be made according to the actual situation. Both the quick-release male connector 42 and the quick-release female connector are existing technologies and will not be described in detail here.

[0053] Please see Figures 1 to 2 In some embodiments, any quick-release male connector 42 is provided with an automatic sealing valve 44.

[0054] Please see Figures 1 to 2 In some embodiments, an automatic sealing valve 44 is provided inside any quick-release female connector.

[0055] It is understandable that by installing automatic sealing valves 44 in both the quick-release male connector 42 and the quick-release female connector, when the quick-release male connector 42 and the quick-release female connector are separated, the two automatic sealing valves 44 can seal the quick-release male connector 42 and the quick-release female connector respectively, preventing the coolant in the liquid cooling pipe 30 and the liquid cooling bar 40 from leaking, and also preventing air from entering the liquid cooling pipe 30 and the liquid cooling bar 40, so that the disassembly of the circuit board 20 and the heat sink body 10 can continue.

[0056] Please see Figures 1 to 2 In some embodiments, the liquid cooling pipe 30 includes a first pipe segment 31 and a second pipe segment 32 connecting the first pipe segment 31. The first pipe segment 31 is connected to the radiator body 10, and the second pipe segment 32 is connected to the liquid cooling bar 40. A quick-release male connector 42 is located in the second pipe segment 32. The length directions of the first pipe segment 31 and the second pipe segment 32 are staggered.

[0057] Optionally, the first pipe segment 31 is arranged along a first direction, and the second pipe segment 32 is arranged along a second direction. By arranging the first pipe segment 31 and the second pipe segment 32 in different directions, the flexibility of the liquid cooling pipe 30 arrangement and the stability of the structure can be improved. Moreover, the arrangement of the first pipe segment 31 and the second pipe segment 32 in different directions can also improve the convenience of disassembling the second pipe segment 32.

[0058] Please see Figures 1 to 2 In some embodiments, the circuit board 20 has a rear panel facing the heat sink body 10 and a front panel facing away from the heat sink body 10, with the second pipe segment 32 located on the front panel.

[0059] Optionally, placing the second pipe segment 32 on the front panel of the circuit board 20 optimizes the layout of the liquid cooling pipe 30, improving the compactness and rationality of the structure. This ensures that the distance between the liquid cooling pipe 30 and the circuit board 20 is appropriate, improving heat dissipation and avoiding unnecessary space occupation.

[0060] Please see Figures 1 to 2 In some embodiments, the first pipe section 31 is a flexible tube and the second pipe section 32 is a rigid tube.

[0061] Optionally, the first pipe section 31 can be made of rubber, and the second pipe section 32 can be made of stainless steel. The first pipe section 31 has a certain degree of elasticity and flexibility, and can be bent and repositioned when separating the second pipe section 32 from the main body 45, thereby providing disassembly space for the second pipe section 32 and improving the ease of disassembly of the second pipe section 32.

[0062] Please see Figures 1 to 2 In some embodiments, the photographic light also includes a fastener 43, which is used to secure the connection between the first pipe segment 31 and the second pipe segment 32. For example, a fastener 43 is provided at the connection between the first pipe segment 31 and the radiator body 10 to secure the connection between the first pipe segment 31 and the radiator body 10. A fastener 43 is also provided at the connection between the second pipe segment 32 and the quick-release male connector to secure the connection between the second pipe segment 32 and the quick-release male connector.

[0063] Optionally, in this embodiment, the fastener 43 is a hose clamp made of stainless steel. The fastener 43 allows the liquid cooling pipe 30 to be easily and quickly connected to the radiator body 10, and also allows for faster disassembly and replacement of the liquid cooling pipe 30 during maintenance, reducing maintenance costs and operational difficulty.

[0064] Please see Figures 1 to 2 The disassembly process of circuit board 20 will now be described, based on the structural features described above:

[0065] First, disconnect the quick-release male connector 42 on one of the liquid cooling pipes 30, and then disconnect the quick-release male connector 42 on the other liquid cooling pipe 30. At the moment of disconnection, the automatic sealing valve 44 inside the quick-release male connector 42 and the quick-release female connector is activated to prevent leakage.

[0066] Next, move one of the second pipe sections 32 outwards by a certain distance, while bending and deforming the corresponding first pipe section 31 until the second pipe section 32 no longer blocks the circuit board 20. The other second pipe section 32 is operated in the same way.

[0067] Next, loosen all the screws on the circuit board 20, and then separate the circuit board 20 and the water block together from the heat sink body 10.

[0068] Finally, loosen the screws connecting the liquid cooling strip 40 and the circuit board 20. After the liquid cooling strip 40 and the circuit board 20 are separated again, the circuit board 20 can be performed for after-sales maintenance.

[0069] After the repair is completed, the circuit board 20, liquid cooling strip 40 and liquid cooling pipe 30 can be reinstalled in reverse order back into the heat sink body 10, which will not be described in detail here.

[0070] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A photographic light, characterized in that, include: The radiator body (10) has a coolant tank. The radiator body (10) has an outlet (11) and an inlet (12). The outlet (11) and the inlet (12) are both connected to the coolant tank. Circuit board (20), said circuit board (20) is detachably connected to the heat sink body (10), said circuit board (20) has heat-generating components; A light source board is electrically connected to the circuit board and has LED beads installed thereon. The circuit board is used to drive the LED beads to emit light. A liquid cooling strip (40) has a heat dissipation channel and is connected to the circuit board (20), and the heat-generating components are in contact with the liquid cooling strip (40); The liquid cooling pipes (30) are at least two in number. One end of each liquid cooling pipe (30) is connected to the outlet (11) and the inlet (12) respectively. The other end of each liquid cooling pipe (30) is detachably connected to both ends of the liquid cooling strip (40) and is connected to the heat dissipation channel.

2. The photographic light as described in claim 1, characterized in that: The number of heat-generating components is multiple, and the liquid cooling strip (40) includes a main body extending along a first direction and having the heat dissipation channel, and the multiple heat-generating components are distributed on the main body along the first direction.

3. The photographic light as described in claim 2, characterized in that: The liquid cooling strip (40) further includes one or more branches (41) extending along the second direction, the main body is connected to the branches, the heating element is arranged on the branches, and the first direction is perpendicular to the second direction.

4. The photographic light as described in claim 2 or 3, characterized in that: The heat-generating components include MOSFETs.

5. The photographic light as described in any one of claims 1-3, characterized in that: The liquid cooling strip (40) has quick-release male connectors (42) at both ends, and quick-release female connectors are provided on both liquid cooling pipes (30). The two quick-release male connectors (42) are respectively inserted into the two quick-release female connectors.

6. The photographic light as described in claim 5, characterized in that: An automatic sealing valve (44) is provided in any of the quick-release male connectors (42), and / or the automatic sealing valve (44) is provided in any of the quick-release female connectors.

7. The photographic light as described in any one of claims 1-3, characterized in that: The liquid cooling pipe (30) includes a first pipe section (31) and a second pipe section (32) connected to the first pipe section (31). The first pipe section (31) is connected to the radiator body (10), and the second pipe section (32) is connected to the liquid cooling bar (40). The length direction of the first pipe section (31) and the length direction of the second pipe section (32) are arranged alternately.

8. The photographic light as described in claim 7, characterized in that: The circuit board (20) has a rear panel facing the heat sink body (10) and a front panel facing away from the heat sink body (10), and the second pipe segment (32) is located on the front panel.

9. The photographic light as described in claim 7, characterized in that: The first pipe section (31) is a flexible pipe, and the second pipe section (32) is a rigid pipe.

10. The photographic light as described in claim 9, characterized in that: The photographic light also includes a fastener (43) for securing the connection between the first pipe segment (31) and the second pipe segment (32).

Images