Stage lamp with built-in heat dissipation loop

Abstract

The utility model relates to the technical field of stage lamps, in particular to a stage lamp with a built-in heat dissipation loop, which structurally comprises a lamp holder, the lamp holder comprises a lamp bracket and a light source arranged in the lamp bracket, and a lamp bracket side cover is spliced on the side surface of the lamp bracket; a ventilation gap is formed between the lamp holder side cover and the lamp holder; the air inlet window is formed in the lamp holder side cover and used for allowing external air to enter the ventilation gap. The air inlet is formed in the lamp holder and allows air in the ventilation gap to enter the lamp cap; the air inlet window and the air inlet are arranged along the light emitting direction of the light source; the air outlet is formed in the lamp holder and allows air in the lamp cap to be discharged outwards; and the fan is arranged on the lamp holder, the air exhaust end and the air exhaust end of the fan communicate with the interior of the lamp holder and the air outlet correspondingly, and air in the lamp holder is exhausted through the fan so that negative pressure can be formed in the lamp holder. According to the stage lamp, efficient heat dissipation of the stage lamp can be achieved, the structure is simple, and a complex heat dissipation structure does not need to be additionally arranged.

Description

TECHNICAL FIELD

[0001] The utility model relates to stage lamp technical field especially relates to a stage lamp of built -in heat dissipation loop. BACKGROUND

[0002] With the development of stage lighting equipment towards high power, high brightness, multi-functional direction, high power stage lamp inevitably produces a large amount of heat in the working process. If these heat cannot be effectively dissipated in time, it will lead to the internal temperature of the lamp sharply rising, seriously affecting the performance and life of the light source, and even may cause safety hazards. Therefore, efficient and reliable heat dissipation system becomes a crucial part of high power stage lamp design.

[0003] At present, stage lamp heat dissipation technology mainly includes natural heat dissipation, fan heat dissipation and heat pipe heat dissipation and other ways.

[0004] The heat dissipation efficiency of natural heat dissipation is low, especially for high power stage lamp, it is difficult to meet the heat dissipation demand, and is easy to cause the lamp overheating.

[0005] In order to improve the heat dissipation effect, fan heat dissipation becomes the most widely used heat dissipation way in stage lamp. The traditional fan heat dissipation usually installs the fan directly on the lamp outside or inside, directly blows the heat dissipation to the light source or lamp internal element. Although this direct blowing heat dissipation can enhance the air flow to a certain extent, it still has the following deficiencies in heat dissipation efficiency and structural complexity:

[0006] Limited heat dissipation efficiency: direct blowing heat dissipation, air flow path is not clear, easy to form hot air accumulation area in the lamp, causes heat to be unable to effectively discharge, and the heat dissipation effect is limited. Especially in the case of complex internal structure of the lamp and dense components, direct blowing is difficult to cover all the heating areas, and the heat dissipation effect is more uneven.

[0007] Increased structural complexity: in order to improve the effect of direct blowing heat dissipation, it may be necessary to increase the number of fans, increase the power of the fan, or adopt special fan layout, which undoubtedly increases the complexity of the lamp structure, leads to the rise of manufacturing cost, increases the maintenance difficulty, and reduces the reliability. In order to achieve better heat dissipation effect, the existing technology often needs to make compromises in structure, leading to the lamp structure being bloated, which is not conducive to lightweight and integrated design.

[0008] However, heat pipe heat dissipation is a more efficient heat dissipation technology, which utilizes the vaporization and condensation process of the working medium inside the heat pipe for heat transfer, and has the advantages of high heat dissipation efficiency and good temperature uniformity. However, the heat pipe heat dissipation technology has high cost, relatively complex structure, and high requirements for installation and maintenance, and its application in high-power stage lamps is limited. Although the heat pipe heat dissipation has high heat dissipation efficiency, its complex structure and cost limit its wide application.

[0009] In summary, the existing stage lamp heat dissipation technology, especially the traditional direct fan heat dissipation method, has disadvantages in heat dissipation efficiency and structural simplicity, and cannot meet the increasing heat dissipation demand of high-power and high-performance stage lamps. Therefore, a stage lamp heat dissipation structure with higher heat dissipation efficiency and simpler structure is needed to overcome the defects of the existing technology, improve the performance and reliability of the stage lamp, and meet the development needs of modern stage lighting technology. Practical new type content

[0010] In order to solve at least one of the above technical problems in the prior art, the utility model provides a stage lamp with built-in heat dissipation loop, which can realize efficient heat dissipation of the stage lamp and has simple structure without additional complex heat dissipation structure.

[0011] The utility model relates to a stage lamp with built-in heat dissipation loop, which comprises a lamp head, a support arm and a bottom case, the support arm is pivoted to the bottom case, the side of the lamp head is pivoted to the support arm, the lamp head comprises a lamp holder and a light source arranged in the lamp holder, characterized in that a lamp holder side cover is spliced on the side of the lamp holder, and a ventilation gap is formed between the lamp holder side cover and the lamp holder.

[0012] Further comprising:

[0013] An air inlet window is arranged on the lamp holder side cover and allows external air to enter the ventilation gap.

[0014] An air inlet is arranged on the lamp holder and allows air in the ventilation gap to enter the interior of the lamp head.

[0015] The air inlet window and the air inlet are arranged along the light emission direction of the light source.

[0016] An air outlet is arranged on the lamp holder and allows air in the interior of the lamp head to be discharged outward.

[0017] A fan is arranged on the lamp holder, the suction end and the exhaust end of the fan are respectively communicated with the interior of the lamp head and the air outlet, and the fan is used to suck air in the interior of the lamp head to form negative pressure in the interior of the lamp head.

[0018] According to the stage lamp with built-in heat dissipation loop, the suction end of the fan is close to the light source in the lamp holder.

[0019] The air inlet is away from the fan and close to the light head.

[0020] According to the stage lamp with the built-in heat dissipation circuit, the filter body is arranged in the ventilation gap, and air flowing from the air inlet window to the air inlet is filtered through the filter body.

[0021] According to the stage lamp with the built-in heat dissipation circuit, an installation opening corresponding to the filter body is formed in the outer wall of the lamp holder side cover.

[0022] The installation opening is detachably connected with an installation cover.

[0023] According to the stage lamp with the built-in heat dissipation circuit, opposite sides of the installation cover are respectively provided with a positioning buckle and an elastic barb.

[0024] One side of the installation cover is fixedly buckled to a buckle position of the edge of the installation opening through the positioning buckle.

[0025] The other side of the installation cover is elastically buckled to the lamp holder side cover through the elastic barb.

[0026] According to the stage lamp with the built-in heat dissipation circuit, a clamping block is arranged at the edge of the installation opening.

[0027] A buckle groove is arranged at the outer side of the free end of the elastic barb.

[0028] When the installation cover is combined with the installation opening, the free end of the elastic barb is elastically pushed outward to buckle the buckle groove to the clamping block.

[0029] According to the stage lamp with the built-in heat dissipation circuit, the elastic barb is provided with a U-shaped elastic arm.

[0030] The U-shaped elastic arm is arranged between the installation cover and the installation opening, the fixed end of the U-shaped elastic arm is integrally formed on one side of the installation cover, the free end of the U-shaped elastic arm is elastically buckled to the lamp holder side cover in the installation opening and extends outward to the outside of the lamp holder side cover, so as to control the free end of the elastic barb to be separated from the buckle of the lamp holder side cover.

[0031] According to the stage lamp with the built-in heat dissipation circuit, a clamping groove is integrally formed in the inner side of the installation cover.

[0032] A supporting plate is integrally formed on the lamp holder.

[0033] The filter body is tightly arranged between the installation cover and the lamp holder, one end of the filter body is clamped in the clamping groove, and the other end of the filter body is supported by the supporting plate.

[0034] The stage lamp with built-in heat dissipation circuit, the opposite sides of the lamp holder side cover are integrally formed with bearing grooves extending along the direction perpendicular to the light source light emitting direction;

[0035] Each of the bearing grooves is clamped on the opposite sides of the filter body.

[0036] The stage lamp with built-in heat dissipation circuit, the number of ventilation gaps is two, and each ventilation gap is formed on the opposite sides of the lamp holder.

[0037] The stage lamp with built-in heat dissipation circuit, the fan is a blower.

[0038] The stage lamp with built-in heat dissipation circuit, the air inlet window is arranged on the lamp holder side cover close to the light source.

[0039] The stage lamp with built-in heat dissipation circuit, the bottom of the lamp head is provided with a mounting plate for mounting the light source, and the side of the mounting plate away from the light source is provided with a heat dissipation fin module, and the air outlet is arranged on the mounting plate.

[0040] The main technical effect of the stage lamp with built-in heat dissipation circuit is:

[0041] 1. The air inlet window is directly contacted with the external water vapor at the outermost edge of the stage lamp, the air inlet window and the air inlet are arranged in a staggered manner along the direction perpendicular to the lamp head pivot shaft, so that the water vapor around the air inlet window cannot directly enter the air inlet, and the waterproof performance of the stage lamp is enhanced.

[0042] 2. The heat dissipation efficiency of the stage lamp is improved, the light source and internal elements work at an appropriate temperature, the service life is prolonged, and the performance stability is improved.

[0043] 3. While meeting the heat dissipation requirement, the structure design of the stage lamp is simplified, the manufacturing cost is reduced, no additional complex heat dissipation structure is needed, and the lamp structure is avoided to be complicated. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0045] Figure 1 is the external structure diagram of the present application;

[0046] Figure 2 is an exploded view of the utility model;

[0047] Figure 3 is Figure 2 a partial enlarged view of the utility model;

[0048] Figure 4 is Figure 2 a partial enlarged view of the utility model.

[0049] Reference signs:

[0050] 100, lamp holder, 101, support arm, 102, bottom machine case, 103, light-emitting lens;

[0051] 1, lamp stand, 2, lamp stand side cover, 3, ventilation gap, 4, air inlet window, 5, air inlet, 6, air outlet, 7, fan, 8, filter body, 9, mounting port, 10, mounting cover,

[0052] 11, positioning buckle, 12, elastic barb, 13, clamping block, 14, buckle groove, 15, clamping groove,

[0053] 16, supporting plate, 17, supporting groove, 18, heat dissipation fin. DETAILED DESCRIPTION

[0054] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model. In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as the limitation of the utility model.

[0055] As Figures 1 to 4As shown, the stage lamp of the embodiment comprises a lamp head 100, a support arm 101 and a bottom case 102. The support arm 101 is pivotally connected to the bottom case 102, and the side of the lamp head 100 is pivotally connected to the support arm 100. The lamp head 100 mainly comprises a lamp holder 1 and a lamp holder side cover 2. The lamp holder 1 serves as the main structure of the lamp head and is used to carry the light source and other internal components (not shown in the figure). The lamp holder side cover 2 is kept at a certain interval from the lamp holder 1 to jointly form a ventilation gap 3, which is used to build the physical space of the built-in heat dissipation circuit. In addition, the stage lamp also comprises an air inlet window 4, an air inlet 5, an air outlet 6 and a fan 7. Optionally, the fan 7 of the embodiment is a blower fan. The air inlet window 4 is arranged on the lamp holder side cover 2 and directly communicates with the external environment, serving as the entrance of the external cold air into the heat dissipation system. The air inlet 5 is arranged on the lamp holder 1 and communicates the ventilation gap 3 with the internal space of the lamp head 100. The air inlet window 4 and the air inlet 5 are arranged along the light emitting direction of the light source, specifically, the air inlet window 4 and the air inlet 5 are arranged in a staggered manner along the direction perpendicular to the pivot axis of the lamp head 100. The air inlet window 4 is close to the light emitting lens 103 of the lamp, and the air inlet 5 is close to the light source. The air inlet 5 is used to guide the cold air pre-processed by the ventilation gap 3 into the internal space of the lamp head 100, so that the cold air exchanges heat with the heat generating elements such as the light source. The air outlet 6 is also arranged on the lamp holder 1 and serves as the channel for the hot air in the internal space of the lamp head 100 to be discharged. The fan 7 is installed on the lamp holder 1, and the suction end of the fan 7 communicates with the internal space of the lamp head 100, and the exhaust end of the fan 7 communicates with the air outlet 6. The fan 7 is the power source for driving the air flow in the heat dissipation circuit. By sucking the hot air in the internal space of the lamp head 100, the fan 7 forms a negative pressure in the internal space of the lamp head 100, thereby driving the external cold air to enter from the air inlet window 4 and finally be discharged from the air outlet 6, forming a complete air convection heat dissipation circuit.

[0056] When the stage lamp is working, the light source and related electronic components will generate heat. In order to dissipate the heat in time, the fan 7 starts to work and sucks the air in the internal space of the lamp head 100 and discharges it through the air outlet 6. The suction effect of the fan 7 forms a negative pressure in the internal space of the lamp head 100, and the pressure difference between the inside and the outside drives the external cold air to enter from the air inlet window 4. The entering cold air first enters the ventilation gap 3 formed between the lamp holder 1 and the lamp holder side cover 2. The ventilation gap 3 serves as a pre-cooling channel. Before entering the internal space of the lamp head 100, the external cold air flows in the gap, which can carry away part of the heat of the lamp holder side cover 2 and the lamp holder 1, achieving preliminary heat dissipation. This pre-cooling design helps to improve the overall heat dissipation efficiency. Subsequently, the cold air pre-heated by the ventilation gap 3 enters the internal space of the lamp head 100 through the air inlet 5 and fully exchanges heat with the heat generating elements such as the light source, thereby absorbing heat. The heated air becomes hot air and is finally sucked out of the internal space of the lamp head 100 by the fan 7 and discharged outside the lamp body through the air outlet 6, completing the heat dissipation cycle. The whole heat dissipation process is efficient and the path is clear, which guarantees the heat dissipation efficiency.

[0057] It can be understood that by the fan 7 to form a negative pressure inside the lamp head 100, forced external cold air from the air inlet window 4 into, and via the ventilation gap 3, air inlet 5, lamp head 100 inside, air outlet 6 of the path formed directional, controllable air convection cooling circuit. This forced convection cooling compared to natural cooling and direct blowing cooling, can be more quickly, more effectively to take away the heat generated by the light source and internal components, significantly improve the heat dissipation efficiency, thereby effectively reducing the temperature inside the lamp head 100, guarantee the light source and electronic components in the appropriate temperature stable work, prolong the service life, improve the overall performance and reliability of the stage light. The external cold air first enters the ventilation gap 3, before entering the lamp head 100 inside, first in the gap flow, take away part of the heat of the lamp holder side cover 2 and lamp holder 1. This pre-cooling mechanism can reduce the surface temperature of the lamp holder and side cover, further improve the overall heat dissipation effect. The use of lamp holder 1 and lamp holder side cover 2 between the structural gap naturally form ventilation gap 3, and the air inlet, air outlet and fan cleverly integrated into the structure of the lamp holder and lamp holder side cover, without additional increase complex cooling components or cooling channels, clever structure design, simple and compact. This structure simplification not only reduces the manufacturing cost, but also improves the reliability and maintenance convenience of the lamp.

[0058] Therefore, the stage lamp cooling structure of the embodiment is to cleverly use the structural space between the lamp holder and the lamp holder side cover, to build an internal cooling circuit, and to drive the fan, to achieve the comprehensive technical effects of efficient cooling and simple structure, to effectively solve the problems of cooling efficiency and structural complexity in the prior art.

[0059] In one embodiment, in order to further optimize the heat dissipation airflow path inside the lamp head, improve the heat dissipation efficiency, and target cooling of key heat generating components such as the light source and the light exit lens, the air suction end of the fan 7 is close to the light source inside the lamp holder 1, while the air inlet 5 is away from the fan 7 and close to the light exit lens 103 of the lamp head 100. That is, the close arrangement of the air suction end of the fan 7 and the light source, and the close arrangement of the air inlet 5 and the light exit lens 103, and the spatial separation of the air inlet 5 and the air suction end of the fan 7, together form a heat dissipation airflow path. When the fan 7 is working, its air suction end extracts hot air from the vicinity of the light source, forming a negative pressure, and external cold air enters the lamp head interior from the air inlet 5 located at the front of the lamp head. Since the air inlet 5 is located away from the air suction end of the fan 7, after the cold air enters the interior of the lamp head, it will first flow through the light source area, exchange heat with the light source, absorb the heat generated by the light source, and then be discharged from the air outlet 6 by the fan 7. This structural layout can ensure that the cold air can effectively cool the light source and the light exit lens 103, forming a directional and efficient heat dissipation airflow. It can be understood that the close arrangement of the fan air suction end and the light source can directly extract hot air near the heat source, reduce the accumulation of heat inside the lamp head, improve the heat removal efficiency, and through the above position layout, a directional airflow from the air inlet 5 to the light source and then to the air outlet 6 can be formed, avoiding dead angles in heat dissipation and improving the overall heat dissipation uniformity.

[0060] In one embodiment, in order to prevent impurities such as dust, particulate matter and moisture in the external environment from entering the interior of the lamp head, protect the light source, electronic components and optical components inside the lamp head, and improve the reliability and life of the luminaire, a filter 8 is arranged in the ventilation gap 3 to filter the air flowing from the air inlet window 4 to the air inlet 5. The filter 8 is arranged in the ventilation gap 3 between the air inlet window 4 and the air inlet 5, and when external air enters the ventilation gap 3 through the air inlet window 4, it will first come into contact with the filter 8. The filter 8 intercepts impurities such as dust, particulate matter and moisture in the air, and the purified air then enters the interior of the lamp head through the air inlet 5 to participate in the heat dissipation cycle. The ventilation gap 3 provides an ideal installation position for the filter 8 as the only passage for air entering the interior of the lamp head, ensuring the maximization of the filtering effect. It can be understood that the filter 8 is arranged in the ventilation gap, which can pre-filter the air before it enters the core area of the lamp head, effectively intercepting most of the impurities, ensuring that all air entering the interior of the lamp head is filtered, reducing pollution from the source, reducing the accumulation of dust on the surface of the optical components, maintaining the quality of the light beam, preventing dust and moisture from corroding and affecting the electronic components, and improving the stability of the electronic system.

[0061] In one embodiment, in order to achieve convenient replacement and maintenance of the filter body 8, improve the maintenance convenience of the stage lamp, and ensure long-term effective operation of the filtering system, an outer wall of the lamp frame side cover 2 is provided with a mounting port 9 corresponding to the filter body 8, a mounting cover 10 is detachably and integrally connected on the mounting port 9, and the filter body 8 is detachably connected on the mounting cover 10. The mounting port 9 is provided on the lamp frame side cover 2 to provide a mounting position for the filter body 8, the mounting cover 10 is detachably and integrally connected on the mounting port 9 to close the mounting port 9 and fix the filter body 8, and the filter body 8 is detachably connected on the mounting cover 10 to form a filter assembly that can be integrally disassembled and maintained. When the filter body 8 needs to be replaced, the user can conveniently disassemble the mounting cover 10, take out the old filter body 8, replace the new filter body 8, and then reassemble the mounting cover 10 to complete the maintenance operation. It can be understood that the mounting port and the mounting cover can provide a convenient filter replacement channel without disassembling the main body structure of the lamp, and the filter body is detachably connected to the mounting cover, which can simplify the filter replacement operation, the user can quickly replace the filter, and the maintenance time is reduced. The mounting cover 10 is detachably and integrally connected on the mounting port 9, which can ensure the fixing reliability of the mounting cover and facilitate disassembly, and the stability and maintainability are considered.

[0062] In one embodiment, in order to achieve a detachable connection structure of the mounting cover 10 which is convenient to operate and reliably fixed, further improve the convenience of replacing the filter body 8, and ensure the stability of the mounting cover 10 in the working state, the upper side and the lower side of the mounting cover 10 are integrally formed with a positioning buckle 11 and an elastic barb 12 respectively, the upper side of the mounting cover 10 is fixedly buckled on the buckle position of the edge of the mounting port 9 through the positioning buckle 11, and the lower side of the mounting cover 10 is elastically buckled on the lamp frame side cover 2 through the elastic barb 12. The positioning buckle 11 and the elastic barb 12 are respectively arranged on the upper side and the lower side of the mounting cover 10 and cooperate with the buckle position of the edge of the mounting port 9 and the lamp frame side cover 2. During installation, first, the positioning buckle 11 on the upper side of the mounting cover 10 is aligned with the buckle position of the edge of the mounting port 9 for buckling as a positioning and supporting point; then the lower side of the mounting cover 10 is pressed towards the lamp frame side cover 2 to make the elastic barb 12 elastically deform and buckle on the lamp frame side cover 2, thereby completing the fixation of the mounting cover 10. During disassembly, only the elastic barb 12 needs to be operated to make it disengage from the buckle on the lamp frame side cover 2, and then the mounting cover 10 can be removed. It can be understood that the combination of the positioning buckle and the elastic barb can consider the convenience of installation and the reliability of connection, the positioning buckle provides positioning and support, the elastic barb realizes quick locking and releasing, and one-side fixed buckling and the other-side elastic buckling can simplify the installation and disassembly operation of the mounting cover 10, and the user can complete the disassembly and assembly of the mounting cover with one hand. Furthermore, the elastic buckling of the elastic barb can ensure the close fit between the mounting cover and the lamp frame side cover, prevent loosening, and have a certain anti-vibration ability.

[0063] In one embodiment, in order to realize a simple structure and reliable buckling of the elastic barb 12, to ensure the stable connection between the mounting cover 10 and the mounting port 9, and to facilitate the user to perform the disassembly operation, the mounting port 9 is integrally formed with a clamping block 13 at the edge thereof, and the free end of the elastic barb 12 is integrally formed with a buckling groove 14 at the outer side thereof. When the mounting cover 10 is combined with the mounting port 9, the free end of the elastic barb 12 is elastically pushed outward to buckle the clamping block 13. The clamping block 13 is fixed at the edge of the mounting port 9, and the buckling groove 14 is arranged at the outer side of the free end of the elastic barb 12. When the mounting cover 10 is combined with the mounting port 9, the free end of the elastic barb 12 is in contact with the lamp holder side cover 2 and is extruded, the elastic barb 12 is elastically deformed, the buckling groove 14 slides along the clamping block 13, until the buckling groove 14 passes the clamping block 13, the elastic barb 12 restores the deformation, the buckling groove 14 is clamped into the clamping block 13, and the buckling is completed. When disassembling, as long as the elastic barb 12 is reversely operated to be elastically deformed, the buckling groove 14 can quickly separate from the clamping block 13, and the mounting cover 10 can be conveniently disassembled. It can be understood that the cooperation of the clamping block and the buckling groove can form a simple structure and reliable elastic locking mechanism, to ensure the stability of the mounting cover. Moreover, the elastic pushing of the elastic barb can realize the buckling and locking by using the elastic deformation of the material, so the operation force is small, the hand feeling is clear, and the operation is easy. The structure that the buckling groove buckles the clamping block can realize the quick buckling and release, without the need of tools, and is convenient and fast.

[0064] In one embodiment, in order to further optimize the structural design of the elastic hook 12, a more convenient and user-friendly elastic buckling mechanism is provided, so that the disassembly of the mounting cover 10 is more easy and fast, and the user experience is improved. The elastic hook 12 of the embodiment is provided with a U-shaped elastic arm (not marked in the figure), which is interposed between the mounting cover 10 and the mounting port 9, and the fixed end of the U-shaped elastic arm is integrally formed on one side of the mounting cover 10. The free end of the U-shaped elastic arm is elastically buckled to the lamp holder side cover 2 in the mounting port 9 and extends outward to the outside of the lamp holder side cover 2. The fixed end of the U-shaped elastic arm is integrally formed with the mounting cover 10, the main body of the U-shaped elastic arm is located between the mounting cover 10 and the mounting port 9, and the free end of the U-shaped elastic arm extends to the outside of the lamp holder side cover 2. Therefore, during installation, the elasticity of the U-shaped elastic arm can be used to buckle the mounting cover 10 on the mounting port 9, and the free end of the U-shaped elastic arm is elastically buckled to the lamp holder side cover 2. When disassembling, the user can directly operate the free end of the U-shaped elastic arm extending to the outside of the lamp holder side cover 2, such as pressing or poking, so that the U-shaped elastic arm is elastically deformed and separated from the buckling of the lamp holder side cover 2. The mounting cover 10 can be easily removed. It can be understood that the structure of the elastic hook 12 provided with the U-shaped elastic arm can utilize the elastic properties of the U-shaped structure to provide reliable elastic buckling force, while the structure is simple and easy to manufacture. Since the free end of the U-shaped elastic arm extends outward, a convenient operating handle can be formed on the mounting cover 10, and the user can directly control the elastic hook without tools, thereby achieving quick disassembly. Since the fixed end of the U-shaped elastic arm is integrally formed on one side of the mounting cover 10, the number of parts and the assembly process can be simplified, and the structural strength and reliability can be improved.

[0065] In one embodiment, in order to achieve the stable installation of the filter 8 at the entrance of the ventilation gap 3, facilitate the user to replace and maintain, and improve the maintenance convenience of the stage lamp, the inner side of the mounting cover 10 of the embodiment is integrally formed with a clamping groove 15, the lamp holder 1 is integrally formed with a supporting plate 16, the filter 8 is tightly abutted between the mounting cover 10 and the lamp holder 1 and clamped in the clamping groove 15 at one end and supported by the supporting plate 16 at the other end. When the mounting cover 10 is fitted to the mounting port 9, the clamping groove 15 and the supporting plate 16 form the upper and lower clamping and supporting effect on the filter 8, ensure the stable installation of the filter 8 at the entrance of the ventilation gap 3, effectively prevent the filter 8 from being displaced or falling off under the working conditions such as airflow impact or vibration, and ensure the stability of the filtering effect. When the filter 8 needs to be replaced, only the mounting cover 10 needs to be disassembled, and the old filter 8 can be conveniently taken out and the new filter 8 can be installed, which is simple and convenient to operate and reduces the maintenance difficulty. It can be understood that in the embodiment, the cooperation of the clamping groove 15 and the supporting plate 16 can form effective constraint on the filter 8, provide reliable clamping and supporting force, ensure the stability of the filter 8 in the working state, avoid the filtering failure caused by loosening or falling off, and the installation and disassembly operation of the filter 8 is simple, without additional fasteners, which reduces the assembly difficulty and maintenance cost, improves the maintenance efficiency, and the user can quickly complete the replacement of the filter 8. The clamping groove 15 and the mounting cover 10 are integrally formed, and the supporting plate 16 and the lamp holder 1 are integrally formed, which can reduce the number of parts, simplify the structure, improve the overallity and reliability of the structure, and reduce the manufacturing cost.

[0066] In one embodiment, in order to achieve the stable installation of the filter 8 at the entrance of the ventilation gap 3, facilitate the user to replace and maintain, and improve the maintenance convenience of the stage lamp, the inner side of the mounting cover 10 of the embodiment is integrally formed with a clamping groove 15, the lamp holder 1 is integrally formed with a supporting plate 16, the filter 8 is tightly abutbed between the mounting cover 10 and the lamp holder 1 and clamped in the clamping groove 15 at one end and supported by the supporting plate 16 at the other end. When the mounting cover 10 is fitted to the mounting port 9, the clamping groove 15 and the supporting plate 16 form the upper and lower clamping and supporting effect on the filter 8, ensure the stable installation of the filter 8 at the entrance of the ventilation gap 3, effectively prevent the filter 8 from being displaced or falling off under the working conditions such as airflow impact or vibration, and ensure the stability of the filtering effect. When the filter 8 needs to be replaced, only the mounting cover 10 needs to be disassembled, and the old filter 8 can be conveniently taken out and the new filter 8 can be installed, which is simple and convenient to operate and reduces the maintenance difficulty. It can be understood that in the embodiment, the cooperation of the clamping groove 15 and the supporting plate 16 can form effective constraint on the filter 8, provide reliable clamping and supporting force, ensure the stability of the filter 8 in the working state, avoid the filtering failure caused by loosening or falling off, and the installation and disassembly operation of the filter 8 is simple, without additional fasteners, which reduces the assembly difficulty and maintenance cost, improves the maintenance efficiency, and the user can quickly complete the replacement of the filter 8. The clamping groove 15 and the mounting cover 10 are integrally formed, and the supporting plate 16 and the lamp holder 1 are integrally formed, which can reduce the number of parts, simplify the structure, improve the overallity and reliability of the structure, and reduce the manufacturing cost.

[0067] In addition, preferably, the air inlet window 4 is arranged on the lamp holder side cover 2 close to the light source to achieve better heat dissipation effect.

[0068] In one embodiment, the bottom of the lamp head 100 is provided with a mounting plate (not labeled in the figure) for mounting the light source, and the side of the mounting plate away from the light source is provided with a heat dissipation fin module, which is provided with a plurality of heat dissipation fins 18. The air outlet 6 is arranged on the mounting plate, so that the heat dissipation airflow output from the air outlet 6 can more easily flow through the heat dissipation fins 18. Therefore, the heat generated by the light source during operation is first transmitted to the heat dissipation fins 18 in close contact with the back surface thereof by heat conduction, and the heat dissipation fins 18 spread the heat to a larger surface area to facilitate heat exchange with the surrounding air. On the other hand, when the fan 7 is working, the hot air flow discharged from the air outlet 6 passes through the heat dissipation fins 18, which can effectively drive the air around the heat dissipation fins 18 to flow, accelerating the dissipation of heat on the surface of the heat dissipation fins 18 and quickly removing the heat on the heat dissipation fins 18, thereby more effectively reducing the temperature of the light source. It can be understood that by passing the gas discharged from the air outlet 6 into the heat dissipation cavity, through the heat dissipation fins and discharged from the lamp head 100, the airflow discharged is used to actively guide and accelerate the air flow around the heat dissipation fins 18, forming a stronger forced convection cooling effect, significantly improving the heat dissipation efficiency of the heat dissipation fins 18, thereby more effectively reducing the temperature of the light source, prolonging the service life of the light source, improving the reliability and performance of the stage lamp, and reasonably arranging the relative positions of the air outlet 6 and the heat dissipation fins 18, making the heat dissipation system structure more compact and efficient, improving the overall heat dissipation performance, achieving a more optimal heat dissipation effect in a limited space. Furthermore, the above structure can more easily and quickly remove the hot air around the heat dissipation fins 18, effectively preventing the accumulation of hot air inside the lamp head 100, reducing the overall temperature inside the lamp head 100, improving the working environment inside the lamp head 100, and improving the overall performance and service life of the lamp.

[0069] In one embodiment, in order to improve the heat dissipation efficiency and heat dissipation uniformity of the stage lamp heat dissipation system, achieve more uniform and efficient heat dissipation of the lamp head 100, and improve the heat dissipation performance and reliability of the lamp, the number of ventilation gaps 3 in the embodiment is two, each ventilation gap 3 is formed on the opposite sides of the lamp holder 1, and correspondingly, the number of air inlet windows 4, air inlets 5, air outlets 6 and fans 7 is also two, and as described above, they are respectively matched with the ventilation gaps 3 on the two sides of the lamp holder 1, to realize the circulation of two heat dissipation air flows on the two sides of the lamp holder 1. The two ventilation gaps 3 are arranged on the opposite sides of the lamp holder 1, which can realize the introduction of external cold air from the two sides of the lamp holder 1 for heat dissipation, form a double-sided air inlet heat dissipation circuit, and compared with a single-sided ventilation gap, the double-sided ventilation gap 3 increases the air inlet area and air inlet amount of cold air, so that more external cold air can enter the inside of the lamp head 100 to participate in heat exchange, thereby improving the overall heat dissipation efficiency, more effectively reducing the internal temperature of the lamp head 100, and improving the heat dissipation performance. And the symmetrical or opposite distribution of the double-sided ventilation gaps 3 enables the cold air to enter uniformly from both sides of the lamp head 100, avoids the problem of uneven distribution of heat dissipation air flow caused by single-sided air inlet, improves the uniformity of heat dissipation, reduces the risk of local overheating, improves the overall efficiency of the heat dissipation system, ensures more uniform distribution of internal temperature of the lamp head 100, and improves the reliability and service life of the lamp.

[0070] Optionally, the filter 8 in the embodiment is a breathable cotton block, which can effectively filter dust particles and larger impurities in the air, reduce pollutants entering the inside of the lamp head 100, reduce the accumulation of dust in the inside of the lamp head 100, protect the internal light source and electronic components from dust pollution, and the breathable cotton material has good air permeability, which ensures that the air can pass through the filter 8 more smoothly, avoids that the air flow of the heat dissipation circuit is significantly affected by the excessive resistance of the filter 8, and has less influence on the heat dissipation efficiency. While achieving air filtration, the normal operation and heat dissipation effect of the heat dissipation system are ensured.

[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stage lamp with built-in heat dissipation circuit, comprising a lamp head (100), a supporting arm (101) and a bottom case (102), the supporting arm (101) is pivoted on the bottom case (102), the side of the lamp head (100) is pivoted on the supporting arm (101), the lamp head (100) comprises a lamp holder (1) and a light source arranged in the lamp holder (1), characterized in that, The side of the lamp holder (1) is spliced with a lamp holder side cover (2); a ventilation gap (3) is formed between the lamp holder side cover (2) and the lamp holder (1); Further comprising: An air inlet window (4) is arranged on the lamp holder side cover (2) and is used to allow external air to enter the ventilation gap (3); An air inlet (5) is arranged on the lamp holder (1) and allows air in the ventilation gap (3) to enter the inside of the lamp head (100); The air inlet window (4) and the air inlet (5) are arranged along the light emitting direction of the light source; An air outlet (6) is arranged on the lamp holder (1) and allows air in the inside of the lamp head (100) to be discharged outward; A fan (7) is arranged on the lamp holder (1), and the suction end and the exhaust end of the fan (7) are respectively communicated with the inside of the lamp head (100) and the air outlet (6), and the fan (7) is used to suck the air in the inside of the lamp head (100) to form negative pressure in the inside of the lamp head (100).

2. The stage light with a built-in heat dissipation circuit according to claim 1, characterized in that, The suction end of the fan (7) is close to the light source in the lamp holder (1); The air inlet (5) is away from the fan (7) and close to the light emitting lens (103) of the lamp head (100).

3. The stage lamp with an internal heat dissipation circuit according to claim 1, wherein A filter body (8) is arranged in the ventilation gap (3), and the filter body (8) is used to filter the air flowing from the air inlet window (4) to the air inlet (5).

4. The stage light with a built-in heat dissipation circuit according to claim 3, characterized in that, An installation opening (9) corresponding to the filter body (8) is arranged on the outer wall of the lamp holder side cover (2); An installation cover (10) is detachably spliced and connected to the installation opening (9).

5. The stage light with a built-in heat dissipation circuit according to claim 4, characterized in that, Opposite sides of the installation cover (10) are respectively provided with a positioning buckle (11) and an elastic barb (12); One side of the installation cover (10) is fixedly buckled to the buckle position of the edge of the installation opening (9) through the positioning buckle (11); The other side of the installation cover (10) is elastically buckled to the lamp holder side cover (2) through the elastic barb (12).

6. The stage light with a built-in heat dissipation circuit according to claim 5, characterized in that, The edge of the installation opening (9) is provided with a clamping block (13); The free end of the elastic barb (12) is provided with a clamping groove (14) on the outside; When the installation cover (10) is spliced to the installation opening (9), the free end of the elastic barb (12) elastically pushes the clamping groove (14) to be buckled to the clamping block (13).

7. The stage light with a built-in heat dissipation circuit according to claim 5, wherein, The elastic barb (12) is provided with a U-shaped elastic arm; The U-shaped elastic arm is between the installation cover (10) and the installation opening (9), the fixed end of the U-shaped elastic arm is integrally formed on one side of the installation cover (10), the free end of the U-shaped elastic arm is elastically buckled to the lamp holder side cover (2) in the installation opening (9) and extends outward to the outside of the lamp holder side cover (2).

8. The stage light with a built-in heat dissipation circuit according to claim 4, wherein, The inside of the installation cover (10) is integrally formed with a clamping groove (15); The lamp holder (1) is integrally formed with a supporting plate (16); The filter body (8) is tightly arranged between the installation cover (10) and the lamp holder (1), one end of the filter body (8) is clamped in the clamping groove (15), and the other end of the filter body (8) is supported by the supporting plate (16).

9. The stage light with a built-in heat dissipation circuit according to claim 4, wherein, The opposite sides of the lamp holder side cover (2) are integrally formed with a supporting groove (17) extending along the direction perpendicular to the light source light emitting direction; Each supporting groove (17) is clamped on the opposite sides of the filter body (8).

10. The stage light with a built-in heat dissipation circuit according to any one of claims 1 to 9, characterized in that, The number of the ventilation gaps (3) is two, and each ventilation gap (3) is arranged on the opposite sides of the lamp holder (1).

11. The stage light with a built-in heat dissipation circuit according to any one of claims 1 to 9, characterized in that, The air inlet window (4) is arranged on the lamp holder side cover (2) close to the light source.

12. The stage light with a built-in heat dissipation circuit according to any one of claims 1 to 9, characterized in that, The bottom of the lamp holder (100) is provided with a mounting plate for mounting the light source, and the side of the mounting plate away from the light source is provided with a heat dissipation fin module, and the air outlet (6) is arranged on the mounting plate.

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