Film and television lamp
By designing a film and television light with a detachable light panel and liquid cooling module, the problems of difficult maintenance and high cost of high-power COB film and television lights have been solved, achieving convenient maintenance and efficient heat dissipation, reducing maintenance costs, and improving ease of use and work efficiency.
Patent Information
- Application Number
- CN202423323265.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-31
AI Technical Summary
High-power COB film and television lights are difficult to maintain and have high maintenance costs. In particular, when a part of the LED chip is damaged, the entire light board needs to be disassembled, resulting in waste of resources and complicated maintenance.
The design incorporates multiple detachable lamp panels and liquid cooling modules. The lamp panels are detachably installed on the inner wall of the base and utilize liquid cooling for heat dissipation. Coolant circulation is achieved through inlet and outlet ports, simplifying the maintenance process.
It facilitates the replacement of individual light panels, reduces maintenance difficulty and costs, improves ease of use, achieves efficient heat dissipation, reduces the use of optical components, and improves the working efficiency of film and television lights.
Smart Images
Figure CN223582291U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of light emitting equipment, especially relates to a film and television lamp. BACKGROUND
[0002] In order to meet the photography requirement of different environment, the power requirement of film and television lamp is higher and higher. For high power film and television lamp, for example, the working power of film and television lamp reaches 800W above, especially for the film and television lamp whose light emitting source is LED chip, the LED chip is directly integrated on a circuit board. In order to increase the power size of LED film and television lamp, a large number of LED chips need to be added, which will lead to the large area of corresponding PCB.
[0003] If partial LED chip in the COB lamp plate with large area is damaged, the whole COB lamp plate needs to be disassembled and replaced when repairing. For the COB film and television lamp with large power, the damage of a small part of LED chip leads to the waste of the whole lamp plate, so that the maintenance cost is large. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of film and television lamps, which are convenient to repair and have low maintenance cost.
[0005] A kind of film and television lamp, comprising:
[0006] A plurality of lamp plates, including light source and circuit board, the light source is arranged on one side of the circuit board;And
[0007] Base is provided with light emitting cavity, the light emitting cavity is conical, one end of the light emitting cavity is large mouth end, the other end is small mouth end, the lamp plate is detachably arranged on the inner side wall of the light emitting cavity, and the large mouth end is the light outlet of the light source.
[0008] In one embodiment, the lamp plate includes a plurality of light sources, the light source is an LED chip, the lamp plate is a COB lamp plate, and the plurality of light sources include at least two of the following: white light, cool white light, warm white light, red light, green light, blue light, yellow light and cyan light.
[0009] In one embodiment, the base is hollow inside to form a receiving cavity, the receiving cavity is used to accommodate a cable electrically connected to the lamp plate, the base is provided with a liquid inlet, a liquid outlet and a line interface, the liquid inlet and the liquid outlet are in communication with the receiving cavity, and the line interface is used to electrically connect with the cable.
[0010] In one embodiment, the receiving cavity is a liquid cooling cavity for accommodating the cooling liquid, and the liquid cooling cavity cools the inner side wall of the light emitting cavity.
[0011] In one of the embodiments, the lamp panel further comprises a plurality of liquid cooling modules, each of which is provided with a sub-liquid cooling cavity, one side of the sub-liquid cooling cavity is provided with a heat-conducting surface, the heat-conducting surface is connected with the lamp panel, and the liquid cooling module is detachably mounted on the inner side wall of the light-emitting cavity.
[0012] In one of the embodiments, the liquid cooling module is provided with a mounting surface on the side of the inner side wall of the base, the mounting surface is provided with a docking head, the inner side wall of the base is correspondingly provided with a docking hole, the docking head is inserted into the docking hole, the docking head comprises a liquid inlet head, a liquid outlet head and an electric head, the liquid inlet head and the liquid outlet head are communicated with the sub-liquid cooling cavity, the electric head is electrically connected with the cable of the lamp panel, the liquid inlet head is communicated with the liquid inlet, and the liquid outlet head is communicated with the liquid outlet.
[0013] In one of the embodiments, the liquid cooling module is flat, and the shape of the circuit board is matched with the shape of the liquid cooling module.
[0014] In one of the embodiments, the inner side wall of the light-emitting cavity is divided into a plurality of light-emitting surfaces, the plurality of light-emitting surfaces are symmetrically arranged, and the light-emitting surface is arranged obliquely relative to the optical axis direction of the light-emitting cavity.
[0015] In one of the embodiments, the included angle between the light-emitting surface and the optical axis direction of the light-emitting cavity is 80°-150°.
[0016] In one of the embodiments, the lamp panel arranged on the light-emitting surface is a side lamp panel, the small end of the light-emitting cavity is further provided with a main lamp panel, the main lamp panel is perpendicular to the optical axis direction of the light-emitting cavity, and the edges of the main lamp panel are respectively connected with the edges of the side lamp panels of the plurality of light-emitting surfaces.
[0017] According to the above technical solution, the utility model has the beneficial effects that:
[0018] In the above-mentioned film and television lamp, when one of the lamp panels fails, the lamp panel only needs to be disassembled and replaced. The area of the single lamp panel is small, facilitating transportation and disassembly. The detachable lamp panel reduces the difficulty of maintenance, facilitates user self-maintenance, reduces maintenance cost, and improves the convenience of the film and television lamp.
[0019] The lamp panel of the above-mentioned film and television lamp is arranged on the inner side wall of the base to form a three-dimensional light source. On the one hand, the three-dimensional light source can facilitate the arrangement of more lamp panels, which is conducive to improving the working efficiency of the film and television lamp. On the other hand, the optical effect of the film and television lamp can also achieve the optical effect of the traditional optical accessory. The film and television lamp can also reduce the use of optical accessories, facilitating debugging and assembly.
[0020] And, the above-mentioned film and television lamp radiates the lamp panel through liquid cooling, which can ensure good heat dissipation effect of the lamp panel, and avoid high heat generated when the power of the film and television lamp is high, which affects the normal work of the lamp panel. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a schematic diagram of a perspective structure of the film and television lamp of the embodiment.
[0022] Figure 2 is Figure 1 is a schematic diagram of another perspective structure of the film and television lamp.
[0023] Figure 3 is Figure 1 is an exploded view of the film and television lamp.
[0024] Figure 4 is Figure 2 is an exploded view of the film and television lamp.
[0025] The following signs are explained: 10, film and television lamp; 11, lamp panel; 111, light source; 112, circuit board; 115, side lamp panel; 116, main lamp panel;
[0026] 12, base; 121, light-emitting cavity; 122, large opening end; 123, small opening end; 124, light-emitting surface; 125, liquid inlet; 126, liquid outlet; 127, line interface;
[0027] 13, liquid cooling module; 130, heat-conducting surface; 131, first liquid cooling plate; 132, second liquid cooling plate; 133, mounting surface; 134, liquid inlet connector; 135, liquid outlet connector; 136, electric connector;
[0028] 14, mounting part; 141, total liquid inlet; 142, total liquid outlet; 143, total line interface;
[0029] 9, fastening screw. DETAILED DESCRIPTION
[0030] The typical embodiments embodying the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes on different embodiments, which do not deviate from the scope of the present application, and the description and drawings in essence are used for illustration, not for limiting the present application.
[0031] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of direction or positional relationship (such as up, down, left, right, front and back, etc.) is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. These indications are appropriate when the elements are in the positions shown in the drawings. If the position of these elements changes, the indications of these directions will also change accordingly.
[0032] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0033] The film and television lamp can be used in stage, concert, studio and other occasions, which can usually be used for stage lighting and also for photography and video lighting. For traditional high-power film and television lamps, the luminous power can often reach thousands of watts, even tens of thousands of watts. For LED light source film and television lamps, when the luminous power reaches thousands of watts or tens of thousands of watts, the number of LED chips will be more. If all the LED chips are arranged on the same plane, the layout area of the LED chips will increase a lot, and the overall volume of the film and television lamp will also increase a lot. For the maintenance of the film and television lamp with huge volume, there are many difficulties, such as inconvenience to disassemble, inconvenience to transport, disassembly is more complex, causing waste of resources and other problems. At the same time, for the LED light source with a larger layout area, the heat dissipation problem becomes a difficult problem.
[0034] Referring to Figure 1 、 Figure 2 The film and television lamp 10 of the embodiment includes a plurality of lamp panels 11 and a base 12. The plurality of lamp panels 11 can be detachably arranged in the base 12, and the single lamp panel 11 can be maintained in a targeted manner, so that the maintenance operation is more convenient.
[0035] The plurality of lamp panels 11 includes a light source 111 and a circuit board 112, and the light source 111 is arranged on one side of the circuit board 112. Specifically, in the embodiment, the light source 111 is an LED chip, and the lamp panel 11 is a chip on board (COB) lamp panel 11. The COB lamp panel 11 is a LED chip which can be directly packaged on the circuit board 112 through COB packaging technology.
[0036] Furthermore, the LED chips can include multiple colors and color temperatures. Multiple light sources include at least two of the following: pure white light, cool white light, warm white light, red light, green light, blue light, yellow light, and cyan light. The lamp panels 11 are connected in parallel. By controlling the lighting state and luminous intensity of the aforementioned LED chips, the color and color temperature of different lamp panels 11 and different light sources 111 can be adjusted, thus meeting various usage requirements of the aforementioned film and television light 10.
[0037] The base 12 can be a three-dimensional structure. The base 12 can be bowl-shaped, trumpet-shaped, or cone-shaped. The base 12 has a light-emitting cavity 121. The lamp panel 11 is detachably mounted on the inner wall of the light-emitting cavity 121. When one of the lamp panels 11 malfunctions, only that lamp panel 11 needs to be disassembled and replaced. The small area of each lamp panel 11 facilitates transportation and disassembly. Furthermore, the detachable lamp panels 11 reduce maintenance difficulty, facilitate user self-repair, and improve the convenience of using the film and television lights.
[0038] The light-emitting cavity 121 is conical. One end of the light-emitting cavity 121 is a large opening 122, and the other end is a small opening 123. The shape of the base 12 is not limited to the above shape, as long as the shape of the light-emitting cavity 121 formed is conical. The large opening 122 is the light outlet of the light source 111, so as to facilitate the dispersion of light.
[0039] See Figure 3 , Figure 4 The inner wall of the light-emitting cavity 121 can be divided into multiple light-emitting surfaces 124. The light-emitting surfaces 124 are inclined relative to the optical axis of the light-emitting cavity 121. The multiple light-emitting surfaces 124 are arranged symmetrically. The extending direction of each light-emitting surface 124 forms an angle with the optical axis. Specifically, the angle between each light-emitting surface 124 and the optical axis of the light-emitting cavity 121 is 80° to 150°. The light-emitting cavity 121 includes four light-emitting surfaces 124, which together form a frustum-shaped surface.
[0040] The multiple lamp panels 11 disposed on the light-emitting surface 124 are side lamp panels 115. The angle between the light emitted by the side lamp panel 115 and the optical axis is 80° to 150°. Furthermore, the light-emitting surface 124 may also be provided with a reflective layer, which is used to reflect the light emitted by the light source 111.
[0041] A lamp plate 11 can also be provided at the small end 123 of the frustum surface. The lamp plate 11 provided at the small end 123 can be named the main lamp plate 116, and the main lamp plate 116 is perpendicular to the optical axis of the light-emitting cavity 121. The light emitted by the main lamp plate 116 is parallel to the optical axis.
[0042] Furthermore, the edge of the main lamp panel 116 is connected to the edge of the side lamp panels 115 of the four light-emitting surfaces 124 respectively, so as to increase the density of the lamp panels 11 of the light-emitting cavity 121 and increase the power of the film and television lights.
[0043] The lamp panels 11 are arranged directly along the inner side wall of the light emitting cavity 121, and the plurality of lamp panels 11 are symmetrically distributed about the central axis of the light emitting cavity 121. The light emitted by the LED chips between the plurality of lamp panels 11 is at an angle, and the light emitted by the plurality of lamp panels 11 forms a three-dimensional light source. When different lamp panels 11 are controlled to be lit, corresponding optical effects such as divergent light and parallel light can be achieved. Therefore, the plurality of lamp panels 11 in the light emitting cavity 121 can also achieve the optical effects achieved by the cooperation of traditional point light sources and optical accessories.
[0044] The lamp panels 11 of the above-mentioned film and television lamp 10 are arranged on the inner side wall of the base 12 to form a three-dimensional light source. On the one hand, the three-dimensional light source can facilitate the arrangement of more lamp panels 11, thereby improving the working efficiency of the film and television lamp 10. On the other hand, the optical effect of the film and television lamp 10 can also achieve the optical effect of the traditional optical accessory, and the film and television lamp 10 can also reduce the use of optical accessories, thereby facilitating debugging and assembly.
[0045] The LED chips on the lamp panel 11 are provided with a connecting cable, and the cable is used to provide power supply, control signals and the like for the LED chips.
[0046] The inside of the base 12 is hollow to form a receiving cavity, and the inner side wall of the light emitting cavity 121 of the base 12 is located on one side of the receiving cavity. The receiving cavity is used to accommodate the cable for electrical connection with the lamp panel 11. The cable can be guided from the back of the light emitting cavity 121, thereby facilitating the line design of the film and television lamp 10. It can be understood that the cable can be a plurality of wires or a line between integrated electrical modules. In addition, the line interface 127 is used to electrically connect with the cable. The cable can be connected to the power supply, control signals and the like through the line interface 127, so as to achieve the lighting and control of the LED chips on the lamp panel 11.
[0047] The base 12 is provided with a liquid inlet 125, a liquid outlet 126 and a line interface 127. The liquid inlet 125 and the liquid outlet 126 are in communication with the receiving cavity. Therefore, the receiving cavity can also be used for circulating cooling liquid.
[0048] In one embodiment, the receiving cavity is a liquid cooling cavity for accommodating cooling liquid, and the liquid cooling cavity cools the inner side wall of the light emitting cavity 121. When the cooling liquid flows in the receiving cavity, the heat on the inner side wall of the light emitting cavity 121 of the base 12 can be timely removed, thereby achieving heat dissipation of the lamp panel 11.
[0049] In this embodiment, the receiving cavity of the base 12 can also not accommodate cooling liquid. The receiving cavity can be used to accommodate a plurality of cooling liquid pipelines.
[0050] Specifically, the lamp panel 11 further comprises a plurality of liquid cooling modules 13. The outer side of one side of the sub-liquid cooling cavity is a heat-conducting surface 130, and the heat-conducting surface 130 of the liquid cooling module 13 is connected with the lamp panel 11. The liquid cooling module 13 is provided with at least one sub-liquid cooling cavity for flowing cooling liquid.
[0051] Specifically, the liquid cooling module 13 is flat. The liquid cooling module 13 comprises a first liquid cooling plate 131 and a second liquid cooling plate 132 arranged oppositely. The first liquid cooling plate 131 and / or the second liquid cooling plate 132 can be provided with a water-containing groove along the thickness direction thereof, and the first liquid cooling plate 131 and the second liquid cooling plate 132 mutually cover the water-containing groove to form a sub-liquid cooling cavity. The sub-liquid cooling cavity is used for flowing cooling liquid.
[0052] The outer side of the first liquid cooling plate 131 is a heat-conducting surface 130. The lamp panel 11 can be mounted on the outer side of the first liquid cooling plate 131. The lamp panel 11 can be detachably arranged on the heat-conducting surface 130. When one of the lamp panels 11 fails, only the lamp panel 11 needs to be disassembled and replaced, and other lamp panels 11 can continue to work normally, thereby achieving convenient maintenance and saving maintenance cost. Specifically, the lamp panel 11 can be detachably arranged on the heat-conducting surface 130 of the liquid cooling module 13 through a fastening screw 9.
[0053] The side of the second liquid cooling plate 132 facing the inner side wall of the base 12 is a mounting surface 133, that is, the outer side of the second liquid cooling plate 132 is a mounting surface 133. The mounting surface 133 is provided with a butt joint. The butt joint comprises a liquid inlet joint 134 and a liquid outlet joint 135 which are in communication with the sub-liquid cooling cavity. The cooling liquid enters the sub-liquid cooling cavity through the liquid inlet joint 134 and is discharged from the liquid outlet joint 135. The flowing cooling liquid flows out of the sub-liquid cooling cavity, which can take away the heat on the heat-conducting surface 130, thereby achieving heat dissipation of the lamp panel 11.
[0054] The butt joint further comprises an electric joint 136. The electric joint 136 is electrically connected with the cable of the lamp panel 11.
[0055] The inner side wall of the base 12 is correspondingly provided with a butt joint hole in which the butt joint can be inserted. The liquid inlet joint 134 is in communication with the liquid inlet 125, the liquid outlet joint 135 is in communication with the liquid outlet 126, and the electric joint 136 is electrically connected with the power supply control box of the film and television lamp.
[0056] The small end of the base 12 is further provided with a mounting portion 14, and the volume of the mounting portion 14 is smaller than that of the base 12. The mounting portion 14 is used for fixing the base 12 to an external support. Furthermore, the mounting portion 14 is provided with a total liquid inlet 141, a total liquid outlet 142 and a total wiring port 143. The total liquid inlet 141 is in communication with the liquid inlet joint 134, the total liquid outlet 142 is in communication with the liquid outlet joint 135, and the total wiring port 143 is electrically connected with the electric joint 136.
[0057] The total liquid inlet 141 can be connected with the liquid inlet connector 134 through a pipeline or a passage, the total liquid outlet 142 can be connected with the liquid outlet connector 135 through a pipeline or a passage, and the total wiring port 143 can be electrically connected with the electric connector 136 through a wire or an integrated circuit. The total liquid inlet 141 can be used to access the low-temperature cooling liquid, so as to be input into the liquid cooling cavity through the liquid inlet connector 134. After flowing through the heat-conducting surface 130, the heated cooling liquid is output from the liquid outlet connector 135 to the total liquid outlet 142, and the circulation of the cooling liquid is realized through the external liquid cooling device. The shape of the circuit board 112 is matched with the shape of the liquid cooling module 13. Each circuit board 112 can correspond to one liquid cooling module 13, or two circuit boards 112 correspond to one liquid cooling module 13, and the arrangement is performed according to the area of the lamp panel 11 and the area of the heat-conducting surface 130 of the liquid cooling module 13.
[0058] The liquid cooling module 13 can be detachably mounted on the inner side wall of the light-emitting cavity 121. When one of the liquid cooling modules 13 fails, only the liquid cooling module 13 needs to be disassembled and replaced, and the other liquid cooling modules 13 can continue to work normally, so that the maintenance is convenient and the maintenance cost is saved. Specifically, the liquid cooling module 13 can be detachably arranged on the inner side wall of the base 12 through the fastening screw 9.
[0059] The above-mentioned film and television lamp 10 can dissipate heat through liquid cooling, so as to dissipate heat of the lamp panel 11, and the heat dissipation effect of the lamp panel 11 can be ensured. When the power of the film and television lamp 10 is high, high heat is generated, which can affect the normal work of the lamp panel 11.
[0060] The liquid cooling cavities of the liquid cooling module 13 are connected in parallel with each other. When the different lamp panels 11 are controlled to be on or off, the corresponding liquid cooling modules 13 can also be matched with the on or off state of the lamp panel 11. That is, when the lamp panel 11 is on, the corresponding liquid cooling module 13 corresponding to the on lamp panel 11 is started to cool, or when the lamp panel 11 is off, the corresponding liquid cooling module 13 can also be in a non-working state. Therefore, the plurality of liquid cooling modules 13 can be independently controlled and have different working states, so as to reduce the energy consumption of the liquid cooling module 13.
[0061] Although the present application has been described with reference to several exemplary embodiments, it is understood that the terms used are illustrative and not restrictive terms. Since the present application can be embodied in various forms without departing from the spirit or essential characteristics thereof, it is understood that the above-described embodiments are not limited to any of the aforementioned details, but are to be interpreted broadly within the spirit and scope of the appended claims, and all changes and modifications that fall within the scope of the claims or equivalents thereof are intended to be embraced by the appended claims.
Claims
1. A film and television light, characterized in that, include: Multiple light panels, including light sources and circuit boards, wherein the light sources are disposed on one side of the circuit boards; and The base is provided with a light-emitting cavity, which is conical in shape. One end of the light-emitting cavity is a large opening, and the other end is a small opening. The lamp plate is detachably disposed on the inner side wall of the light-emitting cavity, and the large opening is the light outlet of the light source.
2. The film and television light according to claim 1, characterized in that, The light panel includes multiple light sources, each of which is an LED chip. The light panel is a COB light panel, and the multiple light sources include at least two of the following: pure white light, cool white light, warm white light, red light, green light, blue light, yellow light, and cyan light.
3. The film and television light according to claim 1, characterized in that, The base has a hollow interior forming a receiving cavity, which is used to accommodate the cable electrically connected to the lamp panel. The base is provided with a liquid inlet, a liquid outlet, and a line interface. The liquid inlet and the liquid outlet are connected to the receiving cavity, and the line interface is used to electrically connect to the cable.
4. The film and television light according to claim 3, characterized in that, The receiving cavity is a liquid-cooled cavity for containing coolant, which cools the inner wall of the light-emitting cavity.
5. The film and television light according to claim 3, characterized in that, The lamp panel also includes multiple liquid cooling modules. Each liquid cooling module has a sub-liquid cooling cavity. One outer side of the sub-liquid cooling cavity is a heat-conducting surface. The heat-conducting surface is connected to the lamp panel. The liquid cooling module can be detachably installed on the inner wall of the light-emitting cavity.
6. The film and television light according to claim 5, characterized in that, The side of the liquid cooling module facing the inner wall of the base is a mounting surface. The mounting surface is provided with a connector. The inner wall of the base is provided with a corresponding mating hole. The connector can be inserted into the mating hole. The connector includes a liquid inlet connector, a liquid outlet connector, and an electrical connector. The liquid inlet connector and the liquid outlet connector are connected to the sub-liquid cooling cavity. The electrical connector is electrically connected to the cable of the lamp board. The liquid inlet connector is connected to the liquid inlet, and the liquid outlet connector is connected to the liquid outlet.
7. The film and television light according to claim 5, characterized in that, The liquid cooling module is flat, and the shape of the circuit board is adapted to the shape of the liquid cooling module.
8. The film and television light according to claim 1, characterized in that, The inner wall of the light-emitting cavity is divided into multiple light-emitting surfaces, which are symmetrically arranged and inclined relative to the optical axis of the light-emitting cavity.
9. The film and television light according to claim 8, characterized in that, The angle between the light-emitting surface and the optical axis of the light-emitting cavity is 80° to 150°.
10. The video lighting according to claim 8, characterized in that, The lamp panel on the light-emitting surface is a side lamp panel, and the small opening end of the light-emitting cavity is also provided with a main lamp panel. The main lamp panel is perpendicular to the optical axis of the light-emitting cavity, and the edge of the main lamp panel is connected to the edge of the side lamp panels of the multiple light-emitting surfaces.