Portable stage lamp power supply cabinet

Abstract

The utility model relates to stage lamp technical field especially, and more particularly to a portable stage lamp power supply cabinet. The power supply cabinet includes: cabinet, has the plug -in channel, and it is equipped with cabinet door, air vent and heat dissipation module, the electricity connection module corresponds with the plug -in channel, the electricity connection module has a plurality of hot plug interface, and the periphery of each hot plug interface is equipped with the guide structure, and the hot plug interface is used for power supply and signal transmission, a plurality of digital unit modules are detachably inserted and installed in the plug -in channel and are electrically connected with the hot plug interface, and the digital unit module is equipped with the positioning structure that cooperates with the guide structure and inserts, the utility model provides the scheme, through portable modular design, the cooperation of hot plug interface and guide positioning structure and the intelligent control of integrated heat dissipation module and temperature sensor, realize the tool -free convenient dismounting of digital unit module, accurate butt joint and efficient heat dissipation, and the maintenance efficiency, operation stability and security of stage lamp power supply cabinet are improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting technology, and in particular to a portable stage lighting power supply cabinet. Background Technology

[0002] In professional performance settings such as television stations, theaters, concerts, large-scale galas, and electronic music festivals, stage lights are typically diverse in type and function, with dozens or even hundreds of lights configured in a single setting. To achieve unified power supply and control for a large number of stage lights, portable power supply cabinets are usually required. However, existing power supply cabinets have two prominent problems in practical applications: first, their heat dissipation performance is poor, and the equipment inside the cabinet is prone to decreased stability due to heat buildup during long-term operation; second, when the power supply or control unit corresponding to an individual stage light fails, it is difficult to quickly locate and replace the faulty unit, potentially affecting the continuity of the performance. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this utility model provides a portable stage lighting power supply cabinet. Through the combination of portable modular design, hot-swappable interface and guide positioning structure, as well as intelligent control integrating heat dissipation module and temperature sensor, it realizes tool-free convenient disassembly and assembly, precise docking and efficient heat dissipation of digital unit modules, significantly improving the maintenance efficiency, operational stability and safety of stage lighting power supply cabinet.

[0004] This utility model provides a portable stage light power supply cabinet, comprising: The cabinet has several insertion channels arranged side by side along the height direction. The cabinet is equipped with cabinet doors and ventilation holes, and also has a heat dissipation module inside. A power connection module is located inside the cabinet and corresponds to the plug-in channel. The power connection module has several hot-swappable interfaces arranged side by side along the height direction. Each hot-swappable interface has a guide structure on its outer periphery. The hot-swappable interface is used for power supply and signal transmission. Several digital unit modules are detachably inserted into the insertion channel and electrically connected to the hot-swappable interface. Each digital unit module is provided with a positioning structure that engages with the guide structure. Each digital unit module integrates a heat dissipation module and a temperature sensor. The controller is electrically connected to the heat dissipation module, the temperature sensor, and the heat dissipation module, respectively, and is used to control the power adjustment of the heat dissipation module and the start and stop of the heat dissipation module based on the temperature data collected by the temperature sensor.

[0005] In some embodiments, the hot-swappable interface includes a power supply interface and a signal interface, and the guide structure is disposed around the outer periphery of the signal interface.

[0006] In some embodiments, the guide structure includes a guide shaft disposed along the outer periphery of the signal interface, the end of the guide shaft having a tapered structure; The positioning structure includes a spring piece adapted to the guide shaft, and the center of the spring piece has an insertion hole for the guide shaft to be inserted into; the two ends of the spring piece are bent in the same direction to form a first elastic arm, the two first elastic arms are bent axially toward the insertion hole to form a second elastic arm, the ends of the second elastic arms are bent to form an abutment portion, the two abutment portions are parallel to each other, and the ends of the abutment portions are bent outward to form a guide portion.

[0007] In some embodiments, the guide shaft and the spring are both conductive structures used for grounding the digital unit module.

[0008] In some embodiments, the power supply interface includes a plurality of conductive tabs arranged in an array, and the digital unit module is provided with a socket that corresponds to and is adapted to the conductive tabs. The socket is plugged into the conductive tabs to achieve a power supply connection.

[0009] In some embodiments, the cabinet includes a frame, the cabinet door is hinged to the frame, the frame is also provided with a side panel and a back panel, the back panel is disposed opposite to the cabinet door and is hinged to the frame, and the cabinet door and the back panel are both provided with ventilation holes; The digital unit module is inserted into the insertion channel along the direction of the cabinet door toward the back panel, and the heat dissipation module is located between the digital unit module and the back panel. The cabinet is also equipped with casters with brakes at the four corners of its bottom.

[0010] In some embodiments, shelves are symmetrically arranged within the frame along the direction from the cabinet door toward the back panel, and the shelves are spaced apart along the height direction with several horizontal support plates, which are used to support the digital unit module; the inner sidewall of the shelves has a hollow structure, and the digital unit module has guide springs on both sides that engage with the hollow structure.

[0011] In some embodiments, a number of reinforcing plates are provided between the shelf and the side panel of the frame. The reinforcing plates, the shelf, and the digital unit module together divide the internal space of the cabinet into an air inlet chamber and an air outlet chamber. The digital unit module is provided with a ventilation channel connecting the air inlet chamber and the air outlet chamber. The heat dissipation module includes a mounting plate vertically arranged along the height direction of the frame, and the mounting plate is provided with a plurality of first cooling fans at intervals along the height direction.

[0012] In some embodiments, the heat dissipation module includes a heat sink and a second cooling fan, the heat sink being attached to the heat source surface within the digital unit module, and the exhaust direction of the second cooling fan being towards the heat sink.

[0013] In some embodiments, the cabinet door is equipped with a touch screen, which is electrically connected to the power module and the controller, respectively, for displaying and adjusting the operating parameters of each digital unit module. The touch screen also integrates a communication interface for connecting to an external control console. A number of status indicator lights are also provided on one side of the touch screen, each status indicator light corresponding to a hot-swappable interface, for indicating the online status and operating status of the corresponding digital unit module.

[0014] By applying the technical solution of this utility model, through the design of several parallel insertion channels along the height of the cabinet and the portable hot-swappable interface of the power connection module, the digital unit modules of multiple stage lights can be integrated and installed in the cabinet, thereby achieving portable power supply and unified signal transmission management for stage equipment. Combined with the detachable installation structure of the digital unit modules and the guiding positioning of the power connection module, along with the plug-and-play characteristic of the hot-swappable interface, the modules can be quickly disassembled and precisely connected without tools, significantly improving the efficiency of daily maintenance and fault replacement. Simultaneously, the temperature sensor integrated into the digital unit module can provide real-time feedback on the operating temperature. The controller dynamically adjusts the start / stop of the heat dissipation module and the power adjustment of the heat dissipation module based on the temperature data, thus forming a tiered heat dissipation system. This enables independent and precise heat dissipation adjustment for each digital unit module, effectively avoiding the risk of localized overheating and improving the operational stability and reliability of the stage lighting and the overall system. Attached Figure Description

[0015] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0016] Figure 1 This is a schematic diagram of the portable stage light power supply cabinet shown in an embodiment of the present invention; Figure 2 This is a schematic diagram of the portable stage light power supply cabinet after the back panel has been removed, as shown in an embodiment of this utility model. Figure 3 yes Figure 2 A schematic diagram of the structure after the heat dissipation module has been removed; Figure 4 yes Figure 3 A schematic diagram of the structure after the power connection module has been removed; Figure 5 yes Figure 3 Side view; Figure 6 This is an exploded view of the cabinet shown in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the storage rack shown in an embodiment of the present invention; Figure 8 This is a schematic diagram of the signal interface structure shown in an embodiment of the present invention; Figure 9 This is a schematic diagram of the power supply interface shown in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the digital unit module shown in an embodiment of the present invention; Figure 11 This is another structural schematic diagram of the digital unit module shown in an embodiment of the present invention.

[0017] Figure label: 1. Cabinet body; 11. Cabinet door; 12. Ventilation hole; 13. Heat dissipation module; 130. Mounting plate; 131. First cooling fan; 14. Frame; 15. Side panel; 16. Back panel; 17. Casters; 18. Shelf; 19. Touch screen; 2. Power connection module; 20. Hot-swappable interface; 200. Power supply interface; 201. Signal interface; 21. Guide structure; 3. Digital unit module; 30. Positioning structure; 30a. Plug-in hole; 30b. First elastic arm; 30c. Second elastic arm; 30d. Abutment part; 30e. Guide part; 31. Heat dissipation module; 310. Heat sink; 311. Second cooling fan; 32. Socket; 33. Guide spring; 34. Signal plug; 35. Ventilation channel. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0019] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In professional performance settings such as television stations, theaters, concerts, large-scale galas, and electronic music festivals, stage lights are typically diverse in type and function, with dozens or even hundreds of lights configured in a single setting. To achieve unified power supply and control for a large number of stage lights, portable power supply cabinets are usually required. However, existing power supply cabinets have two prominent problems in practical applications: first, their heat dissipation performance is poor, and the equipment inside the cabinet is prone to decreased stability due to heat buildup during long-term operation; second, when the power supply or control unit corresponding to an individual stage light fails, it is difficult to quickly locate and replace the faulty unit, potentially affecting the continuity of the performance.

[0022] To address the aforementioned issues, this utility model provides a portable stage lighting power supply cabinet. Through its portable modular design, hot-swappable interface, and guiding positioning structure, along with intelligent control integrating a heat dissipation module and temperature sensor, it enables tool-free, convenient assembly and disassembly of digital unit modules, precise docking, and efficient heat dissipation, significantly improving the maintenance efficiency, operational stability, and safety of the stage lighting power supply cabinet.

[0023] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] See Figures 1 to 6 The portable stage light power supply cabinet provided by this utility model includes: The cabinet 1 has several insertion channels arranged in parallel along the height direction. The cabinet 1 is provided with cabinet doors 11 and ventilation holes 12, and is also provided with a heat dissipation module 13 inside. A power connection module 2 is located inside the cabinet 1 and corresponds to the plug-in channel. The power connection module 2 has several hot-swappable interfaces 20 arranged in parallel along the height direction. Each hot-swappable interface 20 has a guide structure 21 on its outer periphery. The hot-swappable interface 20 is used for power supply and signal transmission. Several digital unit modules 3 are detachably inserted into the insertion channel and electrically connected to the hot-swappable interface 20. Each digital unit module 3 is provided with a positioning structure 30 that is inserted into the guide structure 21. Each digital unit module 3 integrates a heat dissipation module 31 and a temperature sensor. The controller is electrically connected to the heat dissipation module 13, the temperature sensor, and the heat dissipation module 31, respectively, and is used to control the power adjustment of the heat dissipation module 13 and the start and stop of the heat dissipation module 31 based on the temperature data collected by the temperature sensor.

[0025] Specifically, the internal space of cabinet 1 is divided by insertion channels, the number of which can be set from 30 to 60 depending on the application scenario. Cabinet 1 has a top surface, a bottom surface, and four sides, with ventilation holes 12 located on the bottom surface and the four sides. Heat dissipation modules 13 are used to dissipate heat from the entire cabinet 1. When digital unit modules 3 are vertically stacked and inserted into the insertion channels, the positioning structure 30 and the guide structure 21 of digital unit modules 3 cooperate to ensure accurate connection between the power supply interface 200 and the signal interface 201. During performance, the heat dissipation modules 13 and the ventilation holes 12 form an airflow circulation, dissipating heat from the entire cabinet 1. The internal temperature of each digital unit module 3 is monitored in real time by various temperature sensors. When the temperature exceeds a threshold, the controller activates the heat dissipation module 31 to dissipate heat from the digital unit modules 3, reducing the high temperature of individual digital unit modules 3. In some embodiments, the controller can also increase or decrease the output power of the heat dissipation module 13 based on the temperature data from the temperature sensors.

[0026] In this embodiment, the module can be quickly replaced through the plug-in channel and guide structure 21, solving the maintenance difficulties caused by the low modularity of traditional power supply cabinets. The heat dissipation module 13 and heat dissipation unit 31, combined with temperature feedback control, can effectively improve heat dissipation efficiency and reduce the risk of overheating. The modular design also allows for flexible adjustment of the number of functional units according to performance needs, and the hot-swappable interface 20 allows for the connection and disconnection of equipment while powered on, facilitating maintenance and thus improving equipment utilization and system stability.

[0027] Furthermore, the cabinet door 11 is equipped with a touch screen 19, which is electrically connected to the power module 2 and the controller, respectively, and is used to display and adjust the operating parameters of each digital unit module 3. The touch screen 19 also integrates a communication interface for connecting to an external control console. A number of status indicator lights are also provided on one side of the touch screen 19, and each status indicator light corresponds to a hot-swappable interface 20, which is used to indicate the online status and operating status of the corresponding digital unit module 3.

[0028] Specifically, the touchscreen 19 is a TFT color touchscreen, embedded in the cabinet door 11. The touchscreen 19 displays the voltage, current, temperature, and fault codes (such as E01 overcurrent, E02 high temperature) of each digital unit module 3. It also features a parameter adjustment interface, allowing users to set the upper limit of the output current, the temperature protection threshold, and the output power of the heat dissipation module 31 (for example, when the temperature sensor detects temperatures of 60℃ and 70℃, the output power of the heat dissipation module 31 can be adjusted from 10W to 20W). The back of the touchscreen 19 integrates an RS485 interface and an Ethernet interface, allowing connection to the stage control console, power module 2, and controller via network cable or DMX512 signal cable for remote monitoring (such as viewing the power supply cabinet status on the lighting control console). Below the touchscreen 19, along the height, are arranged three-color LED indicators corresponding to the number of plug-in channels, each displaying red, green, and yellow. A solid green light indicates that the module is online and operating normally; a flashing yellow light indicates that the module temperature exceeds 60℃ (high temperature warning); a solid red light indicates that the module is faulty (such as overcurrent, short circuit or communication interruption); and an off light indicates that the module is not inserted or powered on.

[0029] During the operation of the power supply cabinet, the controller collects the operating data (voltage, current, temperature) of each digital unit module 3 in real time and transmits it to the touch screen 19 through the internal communication bus. The touch screen 19 displays the data and controls the indicator light color according to the preset threshold. After the user adjusts the parameters through the touch screen 19, the controller executes the command and synchronizes it to the main control panel. In case of a fault, the indicator light and the fault code on the touch screen 19 will trigger an alarm, guiding maintenance personnel to quickly locate the faulty digital unit module 3.

[0030] To improve the efficiency of tool-free disassembly and precise connection of digital unit module 3, and to ensure the power supply stability and signal transmission quality of digital unit module 3, based on embodiment 1, embodiment 2 of this utility model also designs a corresponding structure. Please refer to [link / reference]. Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9The aforementioned hot-swappable interface 20 includes a power supply interface 200 and a signal interface 201, with the guide structure 21 located around the signal interface 201. When the digital unit module 3 is inserted into the insertion channel, the signal interface 201 first contacts the guide structure 21, which guides the signal interface 201 to precisely align with the insertion position through physical constraints. After the signal interface 201 is positioned, the power supply interface 200 achieves power transmission through the elastic contact between the conductive tab and the socket 32. The guide structure 21 near the signal interface 201 can be positioned first, and then the signal connector 34 of the digital unit module 3 is inserted into the signal interface 201. The guide structure 21 and positioning structure 30 prevent deformation or poor contact of the conductive tab of the power supply interface 200 due to angular deviation during insertion. Furthermore, the hot-swappable interface 20 adopts a dual-interface independent design for power supply and signal, with physical isolation between the two to avoid electromagnetic interference.

[0031] Furthermore, such as Figure 8 and Figure 10 As shown, the guide structure 21 includes a guide shaft disposed along the outer periphery of the signal interface 201, and the end of the guide shaft is tapered. The positioning structure 30 includes a spring piece adapted to the guide shaft. The spring piece has a central insertion hole 30a for the guide shaft to be inserted into. Both ends of the spring piece are bent in the same direction to form first elastic arms 30b. The two first elastic arms 30b are bent axially toward the insertion hole 30a to form second elastic arms 30c. The ends of the second elastic arms 30c are bent to form abutment portions 30d. The two abutment portions 30d are parallel to each other, and their ends are bent outwards to form guide portions 30e. When the digital unit module 3 slides in the insertion channel, the tapered end of the guide shaft first contacts the guide portion 30e of the spring piece. During the advancement process, the guide portion 30e forces the spring piece to undergo elastic deformation, causing the insertion hole 30a to gradually align coaxially with the guide shaft. With further insertion, the guide shaft passes through the insertion hole 30a. At this time, the bending deformation of the first elastic arms 30b and the second elastic arms 30c generates a radial clamping force, causing the abutment portion 30d to tightly adhere to the surface of the guide shaft, achieving positioning and fixation. During disassembly, the elastic restoring force of the spring can automatically release the clamping state, facilitating the quick removal of the digital unit module 3. For example, two guide shafts are symmetrically arranged around the periphery of each signal interface 201, and the ends of the guide shafts are machined into a tapered structure. The spring can be made of thick beryllium bronze strip and formed by stamping, with the insertion hole 30a of the spring fitting with the guide shaft with a clearance.

[0032] Furthermore, both the guide shaft and the spring are conductive structures used for grounding the digital unit module 3. Both the guide shaft and the spring are made of metal; the guide shaft can be made of brass, and the spring can be made of beryllium copper. Reliable grounding of the digital unit module 3 is achieved through the connection between the guide shaft and the spring. The guide shaft is connected to the power supply module 2 via a grounding wire, and then connected to the stage-specific grounding electrode via the grounding terminal of the cabinet 1; the spring is grounded internally to the digital unit module 3 via screws.

[0033] The power supply interface 200 needs to meet the instantaneous high current of the stage lights, and also needs to meet the requirements for long-term stable operation, such as... Figure 9 and Figure 10 As shown, based on the above specific implementation, the power supply interface 200 includes a plurality of conductive inserts arranged in an array. The digital unit module 3 is provided with a socket 32 ​​corresponding to and adapted to the conductive inserts. The socket 32 ​​is plugged into the conductive inserts to achieve a power supply connection. The conductive inserts of the power supply interface 200 are arranged in a multi-row, multi-column manner, for example, a two-row, two-column or three-row, three-column layout. Each conductive insert is independently fixed on the base of the power supply interface 200. The socket 32 ​​of the digital unit module 3 is provided with a plurality of elastic contact pieces inside. When the digital unit module 3 is pushed in along the insertion channel, the conductive inserts and contact pieces form multi-point contact. The width and thickness of the conductive inserts can be adjusted according to the current requirements, and the opening size of the contact pieces is slightly smaller than the thickness of the conductive inserts to generate a clamping force. For example, the power supply conductive inserts can be formed by stamping copper, thereby providing durability and reducing contact resistance. The surface of the power supply conductive inserts can also be silver-plated to further reduce contact resistance and reduce heat generation after conduction. The socket 32 ​​uses a fiberglass insulated shell with beryllium bronze elastic clips embedded inside. The ends of the elastic clips are machined into Ω-shaped contact areas. By connecting the two conductive plugs in parallel and making contact with the surface of the elastic clips, the contact resistance of a single power supply interface can be reduced by 200, thereby meeting the centralized power supply needs of multiple lights in large-scale events.

[0034] The existing power supply cabinet uses a fan to cool the digital unit module 3, but it does not fully consider airflow direction, resulting in highly turbulent airflow and an inability to effectively expel hot air from the cabinet 1. To solve this problem, based on the specific implementation method described above, please refer to... Figures 1 to 3 , Figure 6 and Figure 11 The cabinet body 1 includes a frame 14, the cabinet door 11 is hinged to the frame 14, the frame 14 is also provided with a side panel 15 and a back panel 16, the back panel 16 is arranged opposite to the cabinet door 11 and is hinged to the frame 14, and the cabinet door 11 and the back panel 16 are both provided with ventilation holes 12. The digital unit module 3 is inserted into the insertion channel along the direction of the cabinet door 11 toward the back plate 16, and the heat dissipation module 13 is located between the digital unit module 3 and the back plate 16. The cabinet 1 is also equipped with casters 17 with brakes at the four corners of its bottom.

[0035] Specifically, the frame 14 is welded from square steel tubing, and the surface is bolted to aluminum alloy side panels 15. Both the cabinet door 11 and the back panel 16 are single-opening tempered glass doors, hinged to the frame 14. Honeycomb-shaped air vents are provided on the cabinet door 11 and the back panel 16. The digital unit module 3 is centrally located, with the heat dissipation module 13 positioned between the digital unit module 3 and the back panel 16. The power connection module 2 is located behind the digital unit module 3, and the controller is located in a separate cavity at the top of the cabinet 1. Four heavy-duty casters 17 are installed at the four corners of the bottom of the cabinet 1, two of which are equipped with brakes, and shock-absorbing springs are installed at the axles.

[0036] like Figure 6 and Figure 7 As shown, a shelf 18 is symmetrically arranged inside the frame 14 along the direction from the cabinet door 11 toward the back panel 16. The shelf 18 is provided with several horizontal support plates at intervals along the height direction. The support plates are used to support the digital unit module 3. The inner side wall of the shelf 18 is provided with a hollow structure. The two sides of the digital unit module 3 are provided with guide springs 33 that engage with the hollow structure.

[0037] Specifically, the shelf 18 can be made of aluminum alloy profile and fixed to both sides inside the cabinet 1 with bolts to form a symmetrically distributed support structure. A certain number (e.g., 50) of U-shaped slits are formed in the profile by cutting, and elongated horizontal support plates and elongated hollow structures are formed by stamping. The plane of the horizontal support plate is perpendicular to the plane of the profile. In some embodiments, a silicone pad can be attached to the surface of the horizontal support plate, which can both prevent slippage and cushion the impact force when the digital unit module 3 is inserted. When the digital unit module 3 is inserted, it slides along the horizontal support plate, and the guide spring 33 hooks automatically engage with the hollow holes to prevent the digital unit module 3 from sliding out due to tilting or vibration of the cabinet 1. At the same time, the outer side of the digital unit module 3 adheres to the profile, thereby sealing the hollow structure. For disassembly, the digital unit module 3 can be pulled out simply by lifting it upwards, without the need for tools.

[0038] Furthermore, a number of reinforcing plates are provided between the shelf 18 and the side plate 15 of the frame 14. The reinforcing plates, the shelf 18 and the digital unit module 3 together divide the internal space of the cabinet 1 into an air inlet cavity and an air outlet cavity. The digital unit module 3 is provided with a ventilation channel 35 connecting the air inlet cavity and the air outlet cavity. The heat dissipation module 13 includes a mounting plate 130 vertically arranged along the height direction of the frame 14, and the mounting plate 130 is provided with a plurality of first cooling fans 131 at intervals along the height direction.

[0039] Specifically, the shelf 18 and the cabinet frame 14 are connected by bolts to an aluminum alloy plate. The aluminum alloy plate is at the same height as the interior space of the cabinet 1, and divides the interior space into a front air inlet cavity and a rear air outlet cavity along the depth direction of the cabinet 1. The digital unit module 3 is located between the two cavities, and its front and rear surfaces are respectively opened with air inlets and air outlets to connect the air inlet cavity and the air outlet cavity. The first cooling fan 131 is located in the air outlet cavity. A mounting plate 130 is set in the air outlet cavity along the height direction. Six axial flow fans are fixed on the mounting plate 130. The air outlet direction of the fans is towards the ventilation hole 12 of the back panel 16 of the cabinet 1, so as to form a directional air duct between the air outlet cavity, the back panel 16 and the outside.

[0040] After the first cooling fan 131 starts, a negative pressure is created in the exhaust chamber, drawing in cool air. This air enters the digital unit module 3 through its inlet, flows through the cooling module 31, and then exits through the top outlet of the digital unit module 3 into the exhaust chamber, finally being expelled from the cabinet 1 by the fan. Additionally, a baffle plate can be installed on the side of the insertion channel near the cabinet door 11. The baffle plate is hinged to the insertion channel, and a rubber strip can be installed on the outer side of the baffle plate to ensure a seal between adjacent baffle plates. When a digital unit module 3 is not installed in a certain insertion channel, the baffle plate blocks the corresponding insertion channel to maintain the directional airflow.

[0041] Correspondingly, to facilitate the insertion and removal of the digital unit module 3, a pull-out handle is also provided on the front side of the digital unit module 3.

[0042] While directional airflow can improve heat dissipation efficiency, the output power of each stage light varies significantly within the same time period. Therefore, to address the issue of localized overheating in a single digital unit module 3, please refer to [link to relevant documentation]. Figure 10 and Figure 11 The heat dissipation module 31 includes a heat sink 310 and a second cooling fan 311. The heat sink 310 is attached to the heat source surface inside the digital unit module 3, and the air outlet direction of the second cooling fan 311 is towards the heat sink 310.

[0043] Specifically, the heat sink 310 can adopt a composite heat dissipation structure of an aluminum heat sink and a finned heat sink 310. The heat sink is tightly attached to the power devices inside the digital unit module 3 through thermal grease. The second cooling fan 311 can be a centrifugal fan. The exhaust air of the centrifugal fan blows vertically towards the finned assembly, thereby forming forced convection and reducing the heat flux density of the digital unit module. The centrifugal fan, together with the first fan, can quickly alleviate the local overheating problem of a single digital unit module 3.

[0044] In summary, the portable stage light power supply cabinet provided by this utility model, through its portable modular design, precise cooperation between the hot-swappable interface 20 and the guide positioning structure 30, intelligent integrated heat dissipation system and optimized cabinet structure 1, achieves tool-free quick assembly and disassembly of the digital unit module 3, precise connection between power supply and signal, temperature adaptive efficient heat dissipation and intelligent fault diagnosis. Compared with traditional stage light power supply cabinets, it has the advantages of high heat dissipation efficiency, convenient maintenance and high safety.

[0045] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A portable stage light power supply cabinet, characterized in that, include: The cabinet (1) has several insertion channels arranged in parallel along the height direction. The cabinet (1) is provided with cabinet doors (11) and ventilation holes (12), and is also provided with heat dissipation modules (13) inside. A power connection module (2) is located inside the cabinet (1) and corresponds to the plug-in channel. The power connection module (2) has several hot-swappable interfaces (20) arranged in parallel along the height direction. Each hot-swappable interface (20) has a guide structure (21) on its outer periphery. The hot-swappable interface (20) is used for power supply and signal transmission. Several digital unit modules (3) are detachably inserted into the insertion channel and electrically connected to the hot-swappable interface (20). The digital unit module (3) is provided with a positioning structure (30) that is inserted into the guide structure (21). The digital unit module (3) integrates a heat dissipation module (31) and a temperature sensor. The controller is electrically connected to the heat dissipation module (13), the temperature sensor and the heat dissipation module (31) respectively, and is used to control the power adjustment of the heat dissipation module (13) and the start and stop of the heat dissipation module (31) according to the temperature data collected by the temperature sensor.

2. The portable stage light power supply cabinet according to claim 1, characterized in that, The hot-swappable interface (20) includes a power supply interface (200) and a signal interface (201), and the guide structure (21) is arranged around the outer periphery of the signal interface (201).

3. The portable stage light power supply cabinet according to claim 2, characterized in that, The guide structure (21) includes a guide shaft disposed along the outer periphery of the signal interface (201), and the end of the guide shaft is tapered. The positioning structure (30) includes a spring piece adapted to the guide shaft. The center of the spring piece is provided with a insertion hole (30a) for the guide shaft to be inserted. The two ends of the spring piece are bent in the same direction to form a first elastic arm (30b). The two first elastic arms (30b) are bent axially toward the insertion hole (30a) to form a second elastic arm (30c). The ends of the second elastic arms (30c) are bent to form an abutment portion (30d). The two abutment portions (30d) are parallel to each other, and the ends of the abutment portions (30d) are bent outward to form a guide portion (30e).

4. The portable stage light power supply cabinet according to claim 3, characterized in that, The guide shaft and spring are both conductive structures used for grounding the digital unit module (3).

5. The portable stage light power supply cabinet according to claim 2, characterized in that, The power supply interface (200) includes a plurality of conductive inserts arranged along the array. The digital unit module (3) is provided with a socket (32) that is adapted to the conductive inserts. The socket (32) is plugged into the conductive inserts to achieve power supply connection.

6. The portable stage light power supply cabinet according to claim 1, characterized in that, The cabinet (1) includes a frame (14), the cabinet door (11) is hinged to the frame (14), the frame (14) is also provided with a side panel (15) and a back panel (16), the back panel (16) is arranged opposite to the cabinet door (11), and the back panel (16) is hinged to the frame (14), and the cabinet door (11) and the back panel (16) are both provided with ventilation holes (12); The digital unit module (3) is inserted into the insertion channel along the direction of the cabinet door (11) toward the back plate (16), and the heat dissipation module (13) is located between the digital unit module (3) and the back plate (16); The cabinet (1) is also equipped with universal wheels (17) with brakes at the four corners of its bottom.

7. The portable stage light power supply cabinet according to claim 6, characterized in that, The frame (14) is symmetrically provided with shelves (18) along the direction from the cabinet door (11) toward the back panel (16). The shelves (18) are provided with several horizontal support plates at intervals along the height direction. The support plates are used to support the digital unit module (3). The inner side wall of the shelves (18) is provided with a hollow structure. The digital unit module (3) is provided with guide springs (33) on both sides that engage with the hollow structure.

8. The portable stage light power supply cabinet according to claim 7, characterized in that, Several reinforcing plates are provided between the side panels (15) of the shelf (18) and the frame (14). The reinforcing plates, the shelf (18) and the digital unit module (3) together divide the internal space of the cabinet (1) into an air inlet cavity and an air outlet cavity. The digital unit module (3) is provided with a ventilation channel connecting the air inlet cavity and the air outlet cavity. The heat dissipation module (13) includes a mounting plate (130) vertically arranged along the height direction of the frame (14), and the mounting plate (130) is provided with a plurality of first cooling fans (131) spaced apart along the height direction.

9. The portable stage light power supply cabinet according to claim 1, characterized in that, The heat dissipation module (31) includes a heat sink (310) and a second cooling fan (311). The heat sink (310) is attached to the heat source surface inside the digital unit module (3), and the air outlet direction of the second cooling fan (311) is towards the heat sink (310).

10. The portable stage light power supply cabinet according to any one of claims 1 to 9, characterized in that, The cabinet door (11) is equipped with a touch screen (19), which is electrically connected to the power module (2) and the controller respectively, and is used to display and adjust the operating parameters of each digital unit module (3). The touch screen (19) also integrates a communication interface for connecting to an external control console. A number of status indicator lights are also provided on one side of the touch screen (19), and each status indicator light corresponds to a hot-swappable interface (20) for indicating the online status and operating status of the corresponding digital unit module (3).

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