Film and television lamp with liquid cooling device

Abstract

The utility model belongs to the technical field of film and television lamps, and particularly relates to a film and television lamp with a liquid cooling device, which comprises a lamp panel, a control circuit board, a liquid cooling plate and a liquid cooling head, the control circuit board is connected to the lamp panel and provided with a control circuit used for controlling the LED light-emitting units, a water flow pipeline is arranged in the liquid cooling plate so that cooling water can flow in, and the control circuit board is installed on the surface of the liquid cooling plate. A water flow cavity is formed in the liquid cooling head and used for allowing cooling water to flow in, the lamp panel is installed on the surface of the liquid cooling head, and the liquid cooling head and the liquid cooling plate are communicated with an external pump body so that the cooling water can be circularly fed into the liquid cooling plate and the liquid cooling head. Heat on the lamp panel and the circuit board can be taken away, and the phenomenon that components are damaged due to overheating is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of film and television lights, specifically a film and television light with a liquid cooling device. Background Technology

[0002] In the film and television lighting industry, certain shooting scenes require high-power film and television lights. Traditional high-power lights may use high-energy-consuming HMI (metal halide) lamps or tungsten filament lamps. Due to their high energy consumption and large heat generation, HMI and tungsten filament lamps have been gradually replaced by high-power LEDs. LED film and television lights can reach power of over 2000W, while achieving precise dimming and color control. COB (chip integration) technology enables LED luminous efficacy to exceed 200lm / W, approaching the brightness level of traditional light sources, and the color rendering index (CRI≥95) and color fidelity (TLC I≥98) meet the professional film and television requirements.

[0003] However, during prolonged use, LED lights generate a lot of heat due to prolonged high-power operation, which can easily lead to overheating, causing light decay or even damage to the LED lights.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application proposes a film and television lamp with a liquid cooling device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A video light with a liquid cooling device includes a light panel, a control circuit board, a liquid cooling plate, and a liquid cooling head. The light panel integrates multiple LED light-emitting units. The control circuit board is connected to the light panel and is provided with a control circuit for controlling the multiple LED light-emitting units. The liquid cooling plate has a water flow pipe inside for cooling water to flow in, and the control circuit board is mounted on the surface of the liquid cooling plate. The liquid cooling head has a water flow chamber inside for cooling water to flow in, and the light panel is mounted on the surface of the liquid cooling head. The liquid cooling head and the liquid cooling plate are connected to an external pump body to circulate cooling water into the liquid cooling plate and the liquid cooling head.

[0008] Preferably, it also includes an inlet pipe, a connecting pipe, and an outlet pipe. One end of the inlet pipe is connected to one end of the water flow pipe, and the other end is connected to an external pump body. One end of the connecting pipe is connected to the other end of the water flow pipe. The other end of the connecting pipe is connected to the water flow chamber. One end of the outlet pipe is connected to the water flow chamber, and the other end is connected to an external pump body.

[0009] Preferably, a water nozzle is provided at the end of the water inlet pipe away from the liquid cooling plate. The water nozzle includes a body and a plug rod. A plug groove is provided on one end face of the body for sealing and communication with an external pump body. The plug rod is provided on the end face of the body away from the opening of the plug groove and is used for sealing and inserting into the water inlet pipe. A water inlet hole communicating with the plug groove is provided on the end face of the plug rod away from the body. From the direction of the opening of the plug groove, the cross-sectional area of ​​the water inlet hole is smaller than the cross-sectional area of ​​the opening of the plug groove.

[0010] Preferably, the outer wall of the liquid cooling head is provided with two plug-in tubes, which are respectively connected to the water flow chamber and are used for the connection of the connecting pipe and the water outlet pipe.

[0011] Preferably, connectors are provided on the connecting pipe and the outlet pipe, one end of one connector is connected to the connecting pipe and the other end is used for sealing insertion into one of the plug tubes, and one end of the other connector is connected to the outlet pipe and the other end is used for sealing insertion into the other plug tube.

[0012] Preferably, the portion of the connector inserted into the plug tube has an installation annular groove on its outer side wall, and a sealing ring is provided in the installation annular groove. The sealing ring extends from the opening of the installation annular groove to tightly abut against the inner wall of the plug tube.

[0013] Preferably, the outer wall of the plug-in cylinder is provided with a blocking rod, which is inserted into the inner wall from the outer wall of the plug-in cylinder, and the outer wall of the connector is provided with a snap-fit ​​groove, into which the blocking rod is inserted.

[0014] Preferably, the water flow chamber is provided with multiple heat dissipation fins, which are distributed at intervals.

[0015] Preferably, the top of the plurality of heat dissipation fins is provided with a corrugated plate, the corrugated plate corresponding to the connection between the water flow chamber and the connecting pipe.

[0016] Preferably, the liquid cooling head includes a first surface and a second surface disposed opposite to each other, the liquid cooling plate includes a third surface and a fourth surface disposed opposite to each other, the lamp board is mounted on the first surface, the liquid cooling plate is spaced apart from the liquid cooling plate and the second surface and the third surface are disposed face to face, and the control circuit board is mounted on the third surface or the fourth surface and spaced apart from the liquid cooling head.

[0017] In summary, this application has the following beneficial technical effects:

[0018] When LED lights are used for extended periods, the light board and control circuit board generate a significant amount of heat. This heat is transferred to the liquid cooling head and liquid cooling plate. At this point, an external pump will activate, drawing cooling water from the inlet pipe into the liquid cooling plate. The water flows through the water pipes within the liquid cooling plate, carrying away the heat. The cooling water is then fed into the water flow chamber via connecting pipes and finally discharged from the outlet pipe. This process removes heat from the light board and control circuit board, preventing overheating and potential component damage. Furthermore, since the control circuit board generates relatively little heat, the cooling water flowing out of the water pipes after the liquid cooling plate has been cooled first will not be significantly overheated, thus not affecting subsequent heat dissipation of the light board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall schematic diagram of the liquid cooling device in the embodiments of this application;

[0021] Figure 2 This is another perspective view of the liquid cooling device in the embodiments of this application;

[0022] Figure 3 This is an exploded view of the liquid cooling device in an embodiment of this application;

[0023] Figure 4 This is an exploded view of the liquid cooling head in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of a water tap in an embodiment of this application;

[0025] Figure 6 This is an exploded view of the overall video lighting in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 100, lamp board; 200, control circuit board; 1, liquid cooling plate; 11, water flow pipe; 2, liquid cooling head; 21, water flow chamber; 22, heat dissipation fins; 23, corrugated plate; 3, water inlet pipe; 4, connecting pipe; 5, water outlet pipe; 6, water nozzle; 61, main body; 611, insertion groove; 62, insertion rod; 621, water inlet hole; 7, insertion sleeve; 71, blocking rod; 8, connector; 81, mounting ring groove; 82, sealing ring; 83, snap-fit ​​groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] This application discloses a video lamp with a liquid cooling device.

[0029] Reference Figures 1 to 6 The film and television light includes a light board 100, a control circuit board 200, a liquid cooling plate 1, and a liquid cooling head 2. Specifically, multiple LED light-emitting units are integrated on the light board 100 to achieve the function of illumination. The control circuit board 200 is electrically connected to the light board 100 and is provided with a control circuit for controlling the multiple LED light-emitting units. The liquid cooling plate 1 is generally thin and, in this embodiment, is generally rectangular. A water flow pipe 11 is provided inside the liquid cooling plate 1 for cooling water to flow through. In this embodiment, the water flow pipe 11 is arranged in a serpentine bend to increase the contact area between the cooling water and the liquid cooling plate 1, thereby further improving the heat dissipation efficiency. One side of the liquid cooling plate 1 with a larger cross-sectional area is used for the control circuit board 200 to... The liquid cooling head 2 is block-shaped, and in this embodiment, it is rectangular. The cross-sectional area of ​​the liquid cooling head 2 is smaller than that of the liquid cooling plate 1, and the thickness of the liquid cooling head 2 is greater than that of the liquid cooling plate 1. A water flow chamber 21 is provided inside the liquid cooling head 2 for the inflow and outflow of cooling water. One side of the liquid cooling head 2 with a larger cross-sectional area is used for mounting the lamp board 100. The water flow channel and the water flow chamber 21 are connected to an external pump body to deliver cooling water into the liquid cooling plate 1 and the liquid cooling head 2. The liquid cooling head 2 and the liquid cooling plate 1 constitute the liquid cooling device of the film and television lamp. Through liquid cooling, the lamp board 100 is cooled quickly and efficiently by the liquid cooling head 2, and the control circuit board 200 is cooled by the liquid cooling plate 1, so as to achieve separate heat dissipation of the film and television lamp and avoid damage to the LED lamp.

[0030] In this embodiment, the film and television light also includes an inlet pipe 3, a connecting pipe 4, and an outlet pipe 5. All three are ordinary water pipes. One end of the inlet pipe 3 is connected to the water flow pipe 11, and the other end is connected to an external pump body to draw cooling water from the pump body into the water flow pipe 11. One end of the connecting pipe 4 is connected to the water flow pipe 11, and the other end is connected to the water flow chamber 21, allowing cooling water to flow from the water flow pipe 11 into the water flow chamber 21. One end of the outlet pipe 5 is connected to the water flow chamber 21, and the other end is connected to the external pump body, and outlet water... The connection points of pipe 5 and connecting pipe 4 with the water flow chamber 21 are located on the same side of the liquid cooling head 2, and this side is the side of the liquid cooling head 2 that is away from the lamp plate 100. With this design, the cooling water drawn out by the pump body will first enter the water flow pipe 11. Since the heat generated by the control circuit board 200 is relatively low, the cooling water will not carry away much heat after flowing through the water flow pipe 11, causing the cooling water temperature to be too high. Therefore, when the cooling water flows into the water flow chamber 21 through the connecting pipe 4, it can still absorb the heat on the liquid cooling plate 1 to dissipate heat from the lamp plate 100.

[0031] To increase the water pressure of the cooling water flowing into the water pipe 11, a water nozzle 6 is installed on the water inlet pipe 3. The water nozzle 6 is located at the connection between the water inlet pipe 3 and the external pump body. The water nozzle 6 includes a main body 61 and a plug rod 62. The main body 61 is generally in the shape of a regular polygonal prism, but it can also be other shapes in other embodiments. A insertion groove 611 is opened on one end face of the main body 61. The cross-section of the insertion groove 611 is circular when viewed from the groove opening direction. The insertion groove 611 is used for the water pipe of the pump body to be tightly and sealed, and the side wall of the insertion groove 611 is used to tightly abut against the outer side wall of the water pipe of the pump body. The plug rod 62 is located on the end face of the main body 61 away from the groove opening of the insertion groove 611, and the plug rod 62 is connected to the external pump body. The groove 611 is coaxially arranged, and the insertion rod 62 is used for sealing insertion into the water inlet pipe 3. A water inlet hole 621 is opened on the end face of the insertion rod 62 away from the main body 61. The water inlet hole 621 is distributed along the axis of the insertion rod 62 and is connected to the bottom of the groove 611. From the direction of the groove opening of the groove 611, the cross-sectional area of ​​the groove 611 is larger than the cross-sectional area of ​​the water inlet hole 621. Therefore, when the cooling water enters the water inlet pipe 3 from the pump body, the water flow area of ​​the cooling water will be reduced to increase the water pressure of the cooling water, so that the cooling water can move in the water flow pipe 11 and the water flow chamber 21 at a faster speed to improve the heat dissipation efficiency. At the same time, a water nozzle 6 is also provided at the water outlet pipe 5.

[0032] In some embodiments, two insertion sleeves 7 are provided on the outer wall of the liquid cooling head 2. Both insertion sleeves 7 are located on the side of the liquid cooling head 2 away from the lamp plate 100. The two insertion sleeves 7 are respectively connected to the water flow chamber 21. The two insertion sleeves 7 are used for inserting the connecting pipe 4 and the water outlet pipe 5, so that cooling water flows through the water flow chamber 21. In this embodiment, a connector 8 is provided at one end of the connecting pipe 4 and the water outlet pipe 5 inserted into the insertion sleeve 7. One end of the connector 8 is sealed and connected to the water flow chamber 21, and the other end is connected to the connecting pipe 4 or the water outlet pipe 5. In this embodiment, the connector... The portion of the connector 8 that is sealed and inserted into the plug-in tube 7 is provided with an installation ring groove 81. The installation ring groove 81 is located on the outer side wall of the connector 8 and is coaxial with the axis of the connector 8. A sealing ring 82 is provided in the installation ring groove 81. The sealing ring 82 is made of elastic material, and the outer side of the sealing ring 82 extends out of the groove opening of the installation ring groove 81 to tightly abut against the inner side wall of the plug-in tube 7. Through the tight abutment between the sealing ring 82 and the inner side wall of the plug-in tube 7, the connection stability between the connecting pipe 4, the water outlet pipe 5 and the liquid cooling head 2 can be achieved, and the cooling water can be prevented from flowing out of the plug-in tube 7.

[0033] In addition, to further improve the stability of the connection between the connector 8 and the plug tube 7, a snap-fit ​​groove 83 is provided on the outer wall of the connector 8. When the connector 8 is inserted into the plug tube 7, the snap-fit ​​groove 83 is located inside the plug tube 7. In this embodiment, the snap-fit ​​groove 83 is a ring groove and is spaced apart from the mounting ring groove 81. A blocking rod 71 is provided on the outer wall of the plug groove 611. The blocking rod 71 passes through the inner wall from the outer wall of the plug tube 7 and is used to insert into the snap-fit ​​groove 83. By restricting the side wall of the snap-fit ​​groove 83 with the blocking rod 71, the position of the connector 8 is restricted, preventing the connector 8 from detaching from the plug tube 7 due to excessive water pressure. In this embodiment, the blocking rod 71 is U-shaped. When inserted into the snap-fit ​​groove 83, it will snap into both sides of the snap-fit ​​groove 83, further preventing the connector 8 from shifting due to uneven force.

[0034] In some embodiments, the outer wall of the water tap 6 insertion rod 62 can be provided with multiple serrated protrusions, or with an annular groove and a sealing ring 82, so as to achieve a sealed connection between the insertion rod 62 and the water inlet pipe 3, and the connection ends of the two connectors 8 to the connecting pipe 4 and the water outlet pipe 5 are also provided in the same way as the water tap 6 insertion rod 62.

[0035] In some embodiments, a plurality of heat dissipation fins 22 are provided in the water flow chamber 21. The plurality of heat dissipation fins 22 are arranged at intervals and are located on the side of the water flow chamber 21 near the connection with the lamp panel 100. The heat dissipation fins 22 increase the contact area with the cooling water to remove more heat and improve the heat dissipation efficiency. A corrugated plate 23 is provided at the top of the plurality of heat dissipation fins 22. The corrugated plate 23 is positioned facing the water inlet of the water flow chamber 21, i.e., the position where it connects with the connecting pipe 4. When the cooling water rushes into the water flow chamber 21 under pressure, it is dispersed by the corrugated plate 23 so that the cooling water can better cover the water flow chamber 21 and make the heat dissipation more uniform.

[0036] In some embodiments, the two opposite sides of the liquid cooling head 2 with larger cross-sectional areas are the first surface and the second surface, respectively. The lamp plate 100 is mounted on the first surface of the liquid cooling head 2 by screws. The two opposite sides of the liquid cooling plate 1 with larger cross-sectional areas are the third surface and the fourth surface, respectively. The liquid cooling head 2 and the liquid cooling plate 1 are spaced apart, and the second surface and the third surface are arranged face to face. The control circuit board 200 can be disposed on the third surface or on the fourth surface. In this embodiment, the control circuit board 200 is mounted on the fourth surface by screws. By setting the liquid cooling head 2 and the liquid cooling plate 1 face to face, a face-to-face structure is formed between the control circuit board 200 and the lamp plate 100, making the overall structure more compact and reducing the volume occupied by the film and television lamp body.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A film and television light with a liquid cooling device, characterized in that: include: The light panel integrates multiple LED light-emitting units; A control circuit board, which is connected to the lamp board and is provided with a control circuit for controlling the plurality of LED light-emitting units; A liquid cooling plate with internal water flow pipes for cooling water to flow into it, and the control circuit board is mounted on the surface of the liquid cooling plate; The liquid cooling head has an internal water flow chamber for cooling water to flow into it. The lamp plate is mounted on the surface of the liquid cooling head. The liquid cooling head and the liquid cooling plate are connected to an external pump body to circulate cooling water into the liquid cooling plate and the liquid cooling head.

2. The film and television light according to claim 1, characterized in that: It also includes an inlet pipe, a connecting pipe, and an outlet pipe. One end of the inlet pipe is connected to one end of the water flow pipe, and the other end is connected to an external pump body. One end of the connecting pipe is connected to the other end of the water flow pipe; the other end of the connecting pipe is connected to the water flow chamber; and one end of the outlet pipe is connected to the water flow chamber, and the other end is connected to an external pump body.

3. The film and television light according to claim 2, characterized in that: A water nozzle is provided at the end of the water inlet pipe away from the liquid cooling plate. The water nozzle includes a main body and a plug rod. A plug groove is provided on one end face of the main body. The plug groove is used for sealing and connecting with an external pump body. The plug rod is provided on the end face of the main body away from the opening of the plug groove. The plug rod is used for sealing and inserting into the water inlet pipe. A water inlet hole communicating with the plug groove is provided on the end face of the plug rod away from the main body. From the direction of the opening of the plug groove, the cross-sectional area of ​​the water inlet hole is smaller than the cross-sectional area of ​​the opening of the plug groove.

4. The film and television light according to claim 2, characterized in that: The outer wall of the liquid cooling head is provided with two plug-in tubes, which are respectively connected to the water flow chamber and are used for sealing the connection of the connecting pipe and the water outlet pipe.

5. The film and television light according to claim 4, characterized in that: Connectors are provided on the connecting pipe and the outlet pipe. One end of one connector is connected to the connecting pipe, and the other end is used to be sealed and inserted into one of the plug-in tubes. One end of the other connector is connected to the outlet pipe, and the other end is used to be sealed and inserted into another plug-in tube.

6. The video lighting according to claim 5, characterized in that: The portion of the connector inserted into the plug tube has an installation ring groove on its outer side wall, and a sealing ring is provided in the installation ring groove. The sealing ring extends from the opening of the installation ring groove to tightly abut against the inner wall of the plug tube.

7. The film and television light according to claim 5, characterized in that: A blocking rod is provided on the outer wall of the plug-in cylinder. The blocking rod is inserted into the inner wall from the outer wall of the plug-in cylinder. A snap-fit ​​groove is provided on the outer wall of the connector. The blocking rod is used to insert into the snap-fit ​​groove.

8. The film and television light according to claim 2, characterized in that: The water flow chamber is provided with multiple heat dissipation fins, which are distributed at intervals.

9. The film and television light according to claim 8, characterized in that: The top of each of the heat dissipation fins is provided with a corrugated plate, which corresponds to the connection between the water flow chamber and the connecting pipe.

10. The film and television light according to claim 1, characterized in that: The liquid cooling head includes a first surface and a second surface arranged opposite to each other, the liquid cooling plate includes a third surface and a fourth surface arranged opposite to each other, the lamp board is mounted on the first surface, the liquid cooling plate is spaced apart from the liquid cooling plate and the second surface and the third surface are arranged face to face, and the control circuit board is mounted on the third surface or the fourth surface and spaced apart from the liquid cooling head.

Images