Shell of film and television lamp and film and television lamp
By designing air inlets and outlets in the front and rear directions of the movie light housing, a heat dissipation path is formed that does not pass through the control drive components, solving the problem of uneven heat dissipation when splicing LED movie light matrices and achieving uniform heat dissipation for multiple movie lights.
Patent Information
- Application Number
- CN202521823720.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2035-08-26
AI Technical Summary
When existing LED cinema lights are connected in a matrix, the airflow from the lower cinema lights absorbs heat and becomes hotter, resulting in poor heat dissipation for the upper cinema lights.
A film and television lamp housing is designed with front-to-back air inlets and outlets to form a heat dissipation path that does not pass through a control drive component, ensuring that airflow directly dissipates heat for multiple film and television lamps and accelerates heat dissipation through heat dissipation components such as heat pipes and heat dissipation fins.
Improves the heat dissipation efficiency of multiple cinema lights when they are spliced in a matrix, avoids heat accumulation due to wind flow, and ensures uniform heat dissipation for each cinema light.
Smart Images
Figure CN223413598U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of film and television lighting equipment, and in particular to a housing of a film and television lamp and a film and television lamp using the housing of the film and television lamp. Background Art
[0002] In film and television shooting, lighting technicians will matrix-splice multiple LED light sources to construct an "artificial sun". This way, they can simulate the light emitted by the sun at different times during the shooting process on the set to cooperate with the shooting work on the set.
[0003] In the related art, LED cinema lights usually adopt a fan cooling form, and specifically a fan cooling form with air inlet at the bottom and air outlet at the top. This means that when multiple cinema lights are spliced in a rectangular shape, the airflow will first flow through the cinema lights located at the bottom, and after absorbing the heat of the cinema lights located at the bottom, it will flow to the cinema lights located at the top, resulting in the airflow flowing to the cinema lights located at the top having a higher temperature, causing the heat dissipation effect of the cinema lights located at the top to be poor. Utility Model Content
[0004] The embodiments of the present application provide a housing of a film and television lamp and a film and television lamp, which can improve the heat dissipation effect of the film and television lamp when it is spliced in a matrix.
[0005] In a first aspect, an embodiment of the present application provides a housing for a film and television light, the housing comprising a plurality of COB light sources and a control and drive assembly electrically connected to the plurality of COB light sources. The housing defines a receiving cavity for receiving the plurality of COB light sources, and the housing includes an interior receiving groove for receiving the control and drive assembly.
[0006] The housing is further provided with an air inlet on one side along the front-to-back direction and an air outlet on the other side, the air inlet and the air outlet being connected to the receiving cavity respectively, and the front-to-back direction is parallel to the light emitting direction of the COB light source;
[0007] The receiving groove is located outside the receiving cavity, and a heat dissipation path is formed between the air inlet, the receiving cavity and the air outlet.
[0008] In some embodiments, the air inlet is provided on the front side of the housing along the front-to-back direction, and the air outlet is provided on the rear side of the housing along the front-to-back direction;
[0009] Wherein, the heat dissipation path is extended along the front-to-back direction.
[0010] In some embodiments, along the front-to-back direction, the air inlet, the receiving cavity, and the air outlet are arranged in a straight line.
[0011] In some embodiments, heat dissipation ribs are provided on the side walls of the receiving cavity.
[0012] In some embodiments, the housing includes a housing body, an air inlet filter, and an air outlet filter;
[0013] The shell body surrounds the receiving cavity and forms the receiving groove inside. The shell body has a first assembly opening communicating with the receiving cavity on the front side along the front-back direction and a second assembly opening communicating with the receiving cavity on the rear side.
[0014] The air inlet filter is installed at the first assembly port and forms a plurality of air inlets. The air outlet filter is installed at the second assembly port and forms a plurality of air outlets.
[0015] In some embodiments, the housing is an integrally formed component.
[0016] In some embodiments, the outer peripheral edge of the shell is arranged in a square shape.
[0017] In some embodiments, the control drive assembly includes a first power supply, a second power supply, a first control component, and a second control component;
[0018] The housing includes four side shell parts, which are connected end to end and cooperate to form the receiving cavity, and the receiving groove is formed inside each side shell part;
[0019] The four receiving slots of the side shell parts are used to accommodate the first power supply component, the second power supply component, the first control component and the second control component in a one-to-one correspondence.
[0020] In a second aspect, an embodiment of the present application provides a film and television light, which includes the housing as described above, a plurality of COB light sources, and a control drive assembly;
[0021] The plurality of COB light source matrices are arranged in the receiving cavity, and the control drive assembly is received in the receiving groove.
[0022] In some embodiments, the film and television lamp further includes a heat dissipation component, which is received in the receiving cavity and is thermally connected to the plurality of COB light sources to dissipate heat for the COB light sources;
[0023] Wherein, the heat dissipation component is located on the heat dissipation path.
[0024] Based on the shell and the film and television lamp of the embodiment of the present application, the heat dissipation path does not pass through the control drive component, so that when the airflow flows along the heat dissipation path, it will not flow through the receiving groove, so the airflow will not be interfered with by the control drive component, thereby improving the efficiency of the airflow when flowing along the heat dissipation path; and, the air inlet and outlet form of the shell structure along the front and back directions can make it possible for multiple film and television lamps to be spliced in a matrix. After the multiple airflows have respectively cooled the multiple film and television lamps, they will not flow back into other film and television lamps, so there is no situation where the airflow heat accumulates and flows to other film and television lamps. Therefore, this embodiment can ensure that multiple film and television lamps have good heat dissipation effects when they are spliced in a rectangular shape. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0026] Figure 1 This is a structural diagram of a film and television light according to an embodiment of the present application;
[0027] Figure 2 for Figure 1 The structural diagram of the movie light from another perspective is shown;
[0028] Figure 3 for Figure 1 A schematic cross-sectional view of a section of a movie light shown;
[0029] Figure 4 for Figure 1 A schematic cross-sectional view of another cross section of the movie light shown;
[0030] Figure 5 for Figure 1 Schematic diagram of the structure of the shell body shown.
[0031] Description of Figure Numbers:
[0032] 100. Cinema light; 10. Shell; 10A. Accommodation cavity; 10B. Accommodation slot; 10C. Air inlet; 10D. Air outlet; 11. Side shell; 12. Heat dissipation ribs; 13. Shell body; 13A. First assembly port; 13B. Second assembly port; 14. Air inlet filter; 15. Air outlet filter; 20. COB light source; 30. Control drive assembly; 40. Heat dissipation assembly; X. Heat dissipation path.
[0033] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.
[0035] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.
[0036] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.
[0038] Please refer to Figure 1-Figure 4 The present application proposes a film and television light 100 . In an embodiment of the present application, the film and television light 100 includes a plurality of COB light sources 20 , a control drive assembly 30 and a housing 10 .
[0039] The COB light source 20 includes a metal substrate and multiple LED chips, which are packaged on the metal substrate to form a high-density, high-power integrated light source. In this embodiment, the COB light sources 20 include multiple COB light sources, meaning that the film and television light 100 has multiple independent light sources. The multiple COB light sources 20 can be arranged in a matrix. In this way, the multiple COB light sources 20 can be used to increase the power of the film and television light 100. It can be understood that the film and television light 100 of this embodiment integrates multiple COB light sources 20. For example, the number of COB light sources 20 can be four, so the film and television light 100 is actually a four-head light. The four COB light sources 20 can achieve a rated power of 2500W. Of course, this embodiment is not limited to this. The number of COB light sources 20 can also be nine or twelve, etc., and the corresponding number of COB light sources 20 can be selected according to the actual power required by the film and television light 100.
[0040] The control and drive assembly 30 is electrically connected to the multiple COB light sources 20. Its function is to output electrical energy to the COB light sources 20 and provide control instructions to the COB light sources 20, enabling them to change their operating states. Thus, in this embodiment, the cinema light 100 does not require an external power source for control. By integrating the control and drive assembly 30 within the cinema light 100, the overall structure of the cinema light 100 is enhanced. In actual use, only the power cord needs to be connected to the cinema light 100, eliminating the need for an external power supply or power adapter. This makes operation easier and effectively improves the user experience.
[0041] The housing 10 can be made of metal, such as a magnesium alloy. Magnesium alloys offer advantages such as light weight and high strength, and the material of the housing 10 is not specifically limited herein. The housing 10 defines a receiving cavity 10A for accommodating a plurality of COB light sources 20, which are arranged in a matrix within the receiving cavity 10A. A receiving slot 10B is formed within the housing 10 for accommodating the control drive assembly 30.
[0042] The housing 10 is further provided with an air inlet 10C on one side along the front-to-back direction, and an air outlet 10D on the other side; for example, the air inlet 10C is provided on the front side of the housing 10 assembly along the front-to-back direction, and the air outlet 10D is provided on the rear side of the housing 10 assembly along the front-to-back direction; for another example, the air outlet 10D is provided on the front side of the housing 10 assembly along the front-to-back direction, and the air inlet 10C is provided on the rear side of the housing 10 assembly along the front-to-back direction. The front-to-back direction described here can be combined with Figure 4 To understand, Figure 4 The left side is front and the right side is back, so the direction from left to right is the direction from front to back, and the direction from right to left is the direction from back to front.
[0043] The air inlet 10C and the air outlet 10D are each connected to the receiving chamber 10A, and are arranged in a front-to-back direction parallel to the light emission direction of the COB light source 20. It is understood that the external airflow will first flow into the receiving chamber 10A through the air inlet 10C. As the airflow flows within the receiving chamber 10A, it will absorb the heat generated by the multiple COB light sources 20 before flowing out through the air outlet 10D. In this way, the heat of the COB light sources 20 can be dissipated to the outside world through the airflow.
[0044] Among them, the receiving groove 10B is located outside the receiving cavity 10A, and a heat dissipation path X is formed between the air inlet 10C, the receiving cavity 10A and the air outlet 10D. With this arrangement, the heat dissipation path X does not pass through the control drive component 30. In this way, when the airflow flows along the heat dissipation path X, it will not flow through the receiving groove 10B, so the airflow will not be interfered with by the control drive component 30, thereby improving the efficiency of the airflow when flowing along the heat dissipation path X.
[0045] In this embodiment, the air inlet and outlet forms of the shell 10 along the front-to-back direction can ensure that when multiple film and television lights 100 are spliced in a matrix, multiple air flows will not flow back into other film and television lights 100 after dissipating heat for the multiple film and television lights 100 respectively, so there is no situation where the heat of the air flow accumulates and then flows to other film and television lights 100. Therefore, this embodiment can ensure that multiple film and television lights 100 have a good heat dissipation effect when they are spliced in a rectangular shape.
[0046] Please refer to Figure 1-Figure 4 In some embodiments, the air inlet 10C is provided at the front side of the housing 10 along the front-to-back direction, and the air outlet 10D is provided at the rear side of the housing 10 along the front-to-back direction.
[0047] The heat dissipation path X extends along the front-to-back direction. It is understood that in some usage scenarios, multiple matrix-connected cinema lights 100 may be hung upside down, with the multiple cinema lights 100 arranged at an angle, so that the light output direction of the multiple cinema lights 100 can be tilted downward toward the subject. Therefore, in this usage scenario, the air inlet 10C of this embodiment is located below the air outlet 10D. Since the lower-temperature airflow is located below the higher-temperature airflow, the lower-temperature airflow will flow into the air inlet 10C, absorb heat from the light source assembly, and then flow out of the air outlet 10D. This ensures the heat dissipation efficiency of the cinema light 100 in this usage scenario.
[0048] Please refer to Figure 1-Figure 4 In some embodiments, the air inlet 10C, the receiving cavity 10A, and the air outlet 10D are arranged in a straight line along the front-to-back direction. This arrangement shortens the heat dissipation path X, allowing the airflow to quickly remove heat from the multiple COB light sources 20, thereby improving the heat dissipation efficiency of the multiple COB light sources 20.
[0049] Please refer to Figure 1-Figure 4 In some embodiments, the cinema light 100 further includes a heat dissipation assembly 40, which is housed within the housing cavity 10A and is thermally connected to the plurality of COB light sources 20. The housing cavity 10A is further configured to house the heat dissipation assembly 40, which is located on the heat dissipation path X.
[0050] The heat dissipation component 40 is located on the heat dissipation path X. Thus, the heat absorbed by the heat dissipation component 40 can be carried away by the wind flow and quickly dissipated to the outside, thereby achieving air-cooled heat dissipation and further improving the heat dissipation effect of the multiple COB light sources 20.
[0051] In some exemplary structures, the heat dissipation assembly 40 may include a heat pipe, heat dissipation fins and a heat dissipation fan. The heat pipe is in thermal contact with the COB light source 20 and is attached to the heat dissipation fins. With this arrangement, the heat pipe can absorb the heat of the COB light source 20 and transfer the heat to the heat dissipation fins. Under the action of the heat dissipation fan, the flow of air can be guided so that the air flow can absorb the heat from the heat dissipation fins and flow to the outside during the flow process, so as to finally dissipate the heat to the outside.
[0052] Please refer to Figure 1-Figure 5 In some embodiments, the sidewalls of the receiving cavity 10A are provided with heat dissipation ribs 12. It is understood that during the operation of the cinema light 100, the control drive assembly 30 also generates heat. If the heat generated by the control drive assembly 30 is not dissipated in a timely manner, the components of the power supply heat dissipation assembly 40 may be damaged.
[0053] Therefore, in this embodiment, the heat of the control drive component 30 will be transferred to the side wall of the cavity 10A. When the airflow flows along the heat dissipation path X, the airflow can take away the heat generated by the control drive component 30 during operation, and the setting of the heat dissipation ribs 12 can increase the contact area between the airflow and the side wall of the cavity 10A, so as to effectively improve the heat dissipation efficiency of the control drive component 30.
[0054] Please refer to Figure 1-Figure 5 Optionally, the heat dissipation ribs 12 may include multiple heat dissipation ribs 12, and the multiple heat dissipation ribs 12 are spaced apart and connected to the side wall of the receiving cavity 10A to further increase the contact area between the airflow and the side wall of the receiving cavity 10A, thereby improving the heat dissipation efficiency of the control drive component 30.
[0055] Please refer to Figure 1-Figure 5 In some embodiments, the housing 10 includes a shell body 13 , an air inlet filter 14 and an air outlet filter 15 .
[0056] The shell body 13 is the main body of the housing 10 and defines a receiving cavity 10A and an internal receiving groove 10B. The shell body 13 has a first assembly opening 13A on the front side and a second assembly opening 13B on the rear side.
[0057] The air inlet filter 14 is installed at the first assembly opening 13A and forms a plurality of air inlets 10C. In this way, the air inlet filter 14 can prevent oversized foreign objects from entering the receiving chamber 10A through the first assembly opening 13A, thereby preventing foreign objects from entering the receiving chamber 10A and damaging the COB light source 20.
[0058] The air filter 15 is installed at the second assembly opening 13B and forms a plurality of air outlets 10D. In this way, the air filter 15 can prevent oversized foreign objects from entering the receiving chamber 10A through the second assembly opening 13B, thereby preventing foreign objects from entering the receiving chamber 10A and damaging the COB light source 20.
[0059] Please refer to Figure 1-Figure 5 In some embodiments, the shell body 13 of the housing 10 is an integrally molded component. For example, a mold specifically designed for the housing 10 can be used to integrally mold the shell body 13 of the housing 10. Thus, the technical solution of the present application, by using the shell body 13 of the housing 10 as an integrally molded component, eliminates the need for complex assembly steps after the shell body 13 of the housing 10 is formed and manufactured. This can reduce the assembly cost of the film and television light 100 and effectively improve the production efficiency of the film and television light 100. Furthermore, since the housing 10 does not have a connection structure such as a mortise and tenon structure, it can effectively reduce its own weight, thereby making the overall weight of the film and television light 100 relatively light.
[0060] Please refer to Figure 1-Figure 5 Furthermore, the outer periphery of the shell body 13 of the housing 10 is square, for example, rectangular or square. This makes the shell body 13 of the housing 10 more regular, thereby effectively reducing mold costs and lowering the overall manufacturing cost of the movie light 100.
[0061] Please refer to Figure 1-Figure 5 Furthermore, the film and television light 100 can be a dual-color temperature lamp, so the film and television light 100 can be adjusted between two different color temperatures, for example, it can be adjusted between 2700K and 6500K to meet different shooting needs of users.
[0062] Specifically, the control drive assembly 30 includes a first power supply, a second power supply, a first control component, and a second control component. The first power supply and the second power supply are respectively electrically connected to the metal substrate of the COB light source 20 to supply power to the COB light source 20. The first control component is electrically connected to the first power supply and the COB light source 20 to drive some of the LED chips in the COB light source 20 to emit warm light. The second control component is electrically connected to the second power supply and the COB light source 20 to drive the remaining LED chips in the COB light source 20 to emit cold light. One of the first control component and the second control component includes a first drive board and a control circuit board, and the first drive board can drive the COB light source 20. The other includes a second drive board, and the second drive board can drive the COB light source 20.
[0063] The housing body 13 of the housing 10 includes four side housing parts 11, which are connected end to end to form an integral structure. The four side housing parts 11 cooperate to form a receiving cavity 10A, and each side housing part 11 has a receiving groove 10B formed therein.
[0064] The receiving slots 10B of the four side shell portions 11 are used to accommodate the first power supply, the second power supply, the first control component, and the second control component in a one-to-one correspondence. Thus, given that the cinema light 100 is a dual-color temperature lamp, the four side shell portions 11 of the housing 10 can be used to accommodate multiple components of the control drive assembly 30, resulting in a more rational installation layout.
[0065] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0066] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A housing for a film and television lamp, comprising a plurality of COB light sources and a control drive assembly electrically connected to the plurality of COB light sources, characterized in that: The housing is provided with a receiving cavity, the receiving cavity is used to receive a plurality of the COB light sources, and a receiving groove is formed inside the housing, the receiving groove is used to receive the control drive assembly; The housing is further provided with an air inlet on one side along the front-to-back direction and an air outlet on the other side, the air inlet and the air outlet being connected to the receiving cavity respectively, and the front-to-back direction is parallel to the light emitting direction of the COB light source; The receiving groove is located outside the receiving cavity, and a heat dissipation path is formed between the air inlet, the receiving cavity and the air outlet.
2. The housing of the movie light according to claim 1, wherein: The air inlet is provided on the front side of the housing along the front-to-back direction, and the air outlet is provided on the rear side of the housing along the front-to-back direction; Wherein, the heat dissipation path is extended along the front-to-back direction.
3. The housing of the movie light according to claim 2, wherein: Along the front-to-back direction, the air inlet, the receiving cavity, and the air outlet are arranged in a straight line.
4. The housing of the movie light according to claim 2, wherein: The side wall of the receiving cavity is provided with heat dissipation ribs.
5. The housing of the movie light according to claim 2, wherein: The housing comprises: The shell body surrounds the receiving cavity and forms the receiving groove therein. The shell body has a first assembly opening communicating with the receiving cavity on the front side along the front-to-back direction and a second assembly opening communicating with the receiving cavity on the rear side. an air inlet filter, mounted on the first assembly port, and forming a plurality of the air inlets; and The air outlet filter is installed at the second assembly opening and forms a plurality of the air outlets.
6. The housing of a movie light according to any one of claims 1 to 5, wherein: The housing is an integrally formed component.
7. The housing of the movie light according to claim 6, wherein: The outer peripheral edge profile of the shell is arranged in a square shape.
8. The housing of the movie light according to claim 7, wherein: The control drive assembly includes a first power supply, a second power supply, a first control component and a second control component; The housing includes four side shell parts, which are connected end to end and cooperate to form the receiving cavity, and the receiving groove is formed inside each side shell part; The four receiving slots of the side shell parts are used to accommodate the first power supply component, the second power supply component, the first control component and the second control component in a one-to-one correspondence.
9. A film and television lamp, characterized in that: include: The housing according to any one of claims 1 to 8; A plurality of COB light sources are arranged in a matrix in the receiving cavity; as well as The control drive assembly is accommodated in the accommodating groove.
10. The movie light according to claim 9, wherein: The video lamp also includes: a heat dissipation component, received in the receiving cavity and thermally connected to the plurality of COB light sources to dissipate heat for the COB light sources; Wherein, the heat dissipation component is located on the heat dissipation path.