A continuous rotation stage light optical imaging system and a lamp

Abstract

The utility model provides a kind of continuous rotation type stage light optical imaging system and lamp, including lamp body, light source is successively installed with imaging platform and lens from bottom to top in lamp body inside, and imaging platform is composed of stator end and rotor end;Stator end includes fixed plate, and the bottom of fixed plate is fixedly installed with synchronous pulley one, and the bottom side of synchronous pulley one is installed with multiple groups of conductive slip rings;Rotor end includes mounting plate, and the top of mounting plate is provided with rotor, and the top end of rotor is rotatably installed in the inside of synchronous pulley one;Electric brush is fixedly installed on the side of mounting plate close to rotor;The top of mounting plate is installed with motor, and the output shaft of motor is fixedly installed with synchronous pulley two, and synchronous pulley two is driven connection with synchronous pulley one by synchronous belt.The utility model is through using wear-resistant electric contact pair and synchronous belt mute transmission, combined with shaft rotation design, completely solve carbon brush wear, carbon powder pollution, line winding and noise problem, realize imaging platform stable unlimited continuous rotation.

Description

Technical Field

[0001] This utility model belongs to the field of stage lighting technology, and more specifically, it relates to a continuous rotating stage lighting optical imaging system and lighting fixture. Background Technology

[0002] Stage lighting is one of the core means of stage art design. By precisely controlling the color and changes of light, it achieves environmental rendering, atmosphere enhancement, highlighting of central characters, and the creation of a sense of space and time, ultimately shaping the overall visual image of the stage performance. A typical stage light consists of a base, XY arm supports, a light body shell, and a key component located inside the shell—the imaging system. This imaging system usually consists of a fixed support, an imaging platform, an optical lens assembly, and a light source. Its working principle is as follows: the light generated by the light source is processed by the imaging platform through effects such as light cutting and rotation, and then projected onto the target area through the optical lens assembly. To enhance visual effects and atmosphere, the imaging system often integrates various effect components, among which the rotation function of the imaging platform itself is crucial for producing complex and dynamic lighting effects.

[0003] However, in existing technologies, the rotation of the imaging platform is mostly achieved by the relative rotation of the platform and the fixed support. A significant drawback of this mechanical structure is that the power supply and control lines connected to the rotating platform will inevitably become tangled and twisted as the platform continues to rotate, especially in one direction. This phenomenon can, at best, accelerate the aging of the lines and shorten their lifespan, and at worst, directly cause the lines to be damaged, resulting in the failure of stage lights and seriously affecting the performance effect and equipment reliability.

[0004] To address the aforementioned issue of wire entanglement, existing technologies have provided improved solutions, such as the "An Infinitely Rotatable Stage Light Imaging System and its Stage Light" disclosed in Chinese Patent Publication No. CN113669701B. This technical solution mainly includes: a fixed bracket rotatably connected to the top surface of the imaging platform; a conductive strip integrated plate fixedly mounted on the top surface of the imaging platform, on which several concentric annular conductive strips are provided, which are electrically and signal-connected to the driving device of the imaging platform; and a carbon brush assembly fixedly mounted on the fixed bracket, maintaining contact with the annular conductive strips. By using the sliding contact of the carbon brushes on the annular conductive strips, the traditional rotating wire harness is replaced, solving the problem of wire entanglement due to unidirectional rotation. Its structure is relatively simple, saves internal space, and helps reduce failure rates and manufacturing costs.

[0005] Nevertheless, the above-disclosed technical solutions still have the following significant drawbacks in practical applications:

[0006] 1. Carbon brush wear and failure: As the core sliding contact element, carbon brushes are prone to wear under long-term, high-frequency rotational friction, leading to poor contact or even complete failure, requiring frequent maintenance or replacement.

[0007] 2. Carbon powder contamination and short circuit risk: Conductive carbon powder generated during carbon brush wear may scatter and accumulate between or around the annular conductive strips. This carbon powder can easily cause short circuits between adjacent conductive strips or contaminate the contact surface, leading to unstable signal transmission or complete interruption, which seriously threatens the stability and safety of system operation.

[0008] 3. High noise in the transmission mechanism: The solution uses a ring gear and gear drive. This type of mechanical transmission will generate a lot of noise when running at high speed, which does not meet the increasingly important requirements of modern stage performances for quietness.

[0009] Therefore, developing a stage lighting optical imaging system that can completely avoid wire tangling, overcome carbon brush wear, toner contamination, short circuit risk and high noise, and achieve stable, reliable, quiet and continuous rotation has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0010] To solve the above-mentioned technical problems, this utility model provides a continuous rotating stage lighting optical imaging system and lamp, which is achieved by the following specific technical means:

[0011] A continuous rotating stage lighting optical imaging system includes a lamp body. Inside the lamp body, from bottom to top, are a light source, an imaging platform, and a lens. The imaging platform consists of a stator end and a rotor end. The stator end includes a fixing plate, and a first synchronous pulley is fixedly mounted on the bottom of the fixing plate. Multiple sets of conductive slip rings are mounted on the bottom side of the first synchronous pulley, and the central axes of the multiple sets of conductive slip rings are on the same vertical axis as the central axis of the first synchronous pulley. The conductive slip rings are made of beryllium copper alloy. The rotor end includes a mounting plate, and a rotor is mounted on the top of the mounting plate. The top of the rotor is rotatably mounted inside the first synchronous pulley. A brush is fixedly mounted on the mounting plate near the rotor, and the contact claws of the brushes are correspondingly arranged with and connected to the conductive slip rings. The contact claws are made of palladium silver alloy. A motor is mounted on the top of the mounting plate, and a second synchronous pulley is fixedly mounted on the output shaft of the motor. The second synchronous pulley is connected to the first synchronous pulley via a synchronous belt.

[0012] Furthermore, multiple sets of conductive slip rings are electrically connected to sockets, the top of which protrudes from the top of the synchronous pulley; the sockets are used to connect to the power supply circuit and control circuit of the lamp body.

[0013] Furthermore, a drive circuit board is fixedly mounted on the bottom of the mounting plate, and the brushes and motor are electrically connected to the drive circuit board.

[0014] Furthermore, the top of the mounting plate is provided with multiple sets of connecting columns, and a mounting base is fixedly installed on the top of the multiple sets of connecting columns. The motor is fixedly installed on the bottom side of the mounting base by fasteners. The second synchronous pulley is installed on the top side of the mounting base. The mounting base has pressure wheels installed on both sides near the second synchronous pulley via shafts for pressing the outer side of the synchronous belt.

[0015] Furthermore, a positioning Hall sensor is fixedly mounted on the top of the mounting plate via a bracket; a magnet is fixedly mounted on the mounting plate corresponding to the positioning Hall sensor.

[0016] Furthermore, connecting angle brackets are fixedly installed at both ends of one side of the bottom of the fixing plate, and the connecting angle brackets are used to connect with the lamp body.

[0017] Furthermore, a bearing is fixedly installed on the inner ring of the synchronous pulley, and the top end of the rotor is fixedly connected to the inner ring of the bearing.

[0018] A lighting fixture, comprising the aforementioned continuous rotating stage lighting optical imaging system.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This utility model effectively overcomes the key drawbacks of existing carbon brush contact solutions by employing an electrical contact pair composed of a beryllium copper alloy conductive slip ring and a palladium-silver alloy contact claw, supplemented by a synchronous belt drive structure. Specifically, it is manifested as follows:

[0021] (1) Completely eliminate carbon brush wear and carbon powder contamination: Beryllium copper alloy slip ring has excellent conductivity and wear resistance, and palladium silver alloy contact claw has extremely high hardness and wear resistance. The combination of the two significantly reduces the physical wear of the contact surface, avoids the conductive dust generated by the wear of traditional carbon brushes, thereby eliminating the short circuit risk, signal interference and contact failure caused by carbon powder accumulation, and greatly improving the long-term stability and reliability of electrical contact.

[0022] (2) Significantly reduce operating noise: The synchronous pulley and synchronous belt are used for power transmission, replacing the original gear meshing transmission. This effectively eliminates the sharp noise generated by high-speed gear meshing, achieving near-silent rotary drive, which fully meets the high requirements of modern stage performances for low noise equipment.

[0023] 2. This utility model, by designing the conductive slip ring and the rotating shaft coaxially, combined with the relative rotation of the stator end and the rotor end, enables the power supply and control signals to be stably transmitted through the slip ring-brush contact, completely solving the problem of tangling and twisting caused by the unidirectional or continuous rotation of traditional wire harnesses, and ensuring the long-term trouble-free operation of the equipment. Attached Figure Description

[0024] Figure 1This is a disassembly diagram of the stator end and rotor end structure of this utility model.

[0025] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0026] Figure 3 This is a disassembly diagram of the imaging platform of this utility model.

[0027] Figure 4 This is a schematic diagram showing the disassembled imaging platform and lamp body of this utility model.

[0028] Figure 5 This is a schematic diagram of the imaging platform of this utility model installed in the lamp body.

[0029] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0030] 1. Lamp body; 2. Light source; 3. Imaging platform; 4. Lens;

[0031] 31. Stator end; 311. Fixing plate; 312. Synchronous pulley one; 313. Conductive slip ring; 314. Synchronous belt; 315. Socket; 316. Magnet; 317. Connecting bracket;

[0032] 32. Rotor end; 321. Mounting plate; 322. Rotor; 323. Drive circuit board; 324. Positioning Hall; 325. Connecting column; 326. Mounting base; 327. Motor; 328. Synchronous pulley two; 329. Brush. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example:

[0037] As attached Figure 1 To be continued Figure 5 As shown:

[0038] This utility model provides a continuous rotating stage lighting optical imaging system, including a lamp body 1. Inside the lamp body 1, from bottom to top, a light source 2, an imaging platform 3, and a lens 4 are sequentially installed. The imaging platform 3 consists of a stator end 31 and a rotor end 32. The stator end 31 includes a fixing plate 311, and a synchronous pulley 312 is fixedly installed at the bottom of the fixing plate 311. Multiple sets of conductive slip rings 313 are installed on the bottom side of the synchronous pulley 312. The central axis of the multiple sets of conductive slip rings 313 is on the same vertical axis as the central axis of the synchronous pulley 312. The conductive slip rings 313 are made of beryllium copper alloy, or can be made of copper with a gold-plated surface. 3; The rotor end 32 includes a mounting plate 321, and a rotor 322 is disposed on the top of the mounting plate 321. The top end of the rotor 322 is rotatably mounted inside the first synchronous pulley 312. A brush 329 is fixedly mounted on the side of the mounting plate 321 near the rotor 322. The contact claws of the brush 329 are correspondingly arranged with the conductive slip rings 313 and are in contact with each other. The material of the contact claws is palladium-silver alloy, or copper-silver alloy. A motor 327 is mounted on the top of the mounting plate 321. A second synchronous pulley 328 is fixedly mounted on the output shaft of the motor 327. The second synchronous pulley 328 is connected to the first synchronous pulley 312 through a synchronous belt 314.

[0039] Multiple sets of conductive slip rings 313 are electrically connected to sockets 315, the top of which protrudes from the top of the synchronous pulley 312. The sockets 315 are used to connect to the power supply circuit and control circuit of the lamp body 1. The sockets 315 transmit the external power and signals collected by the stator-end conductive slip rings 313 to the rotating rotor end through the slip ring-brush contact pair, which simplifies the external wiring connection, avoids the introduction of the rotating part wiring harness, further consolidates the reliability of the non-winding design, and facilitates installation and maintenance.

[0040] The bottom of the mounting plate 321 is fixedly mounted with a drive circuit board 323, and the brush 329 and the motor 327 are electrically connected to the drive circuit board 323.

[0041] The mounting plate 321 has multiple sets of connecting posts 325 on its top. A mounting base 326 is fixedly mounted on the top of each set of connecting posts 325. The motor 327 is fixedly mounted to the bottom side of the mounting base 326 using fasteners. The second synchronous pulley 328 is mounted on the top side of the mounting base 326. Pressure rollers are mounted on both sides of the mounting base 326 near the second synchronous pulley 328 via shafts to press against the outer surface of the synchronous belt 314. The pressure rollers ensure that the synchronous belt 314 always maintains appropriate tension, effectively preventing slippage during transmission and ensuring the accuracy, smoothness, and reliability of power transmission.

[0042] The mounting plate 321 has a positioning Hall 324 fixedly mounted on its top via a bracket; the fixing plate 311 has a magnet 316 fixedly mounted on the positioning Hall 324; the positioning Hall 324 (mounted at the rotor end) and the magnet 316 (mounted at the stator end) work together to achieve precise detection and closed-loop control of the rotation angle of the imaging platform, providing position feedback to ensure the generation of complex and precise dynamic lighting effects.

[0043] The bottom side of the fixing plate 311 is fixedly installed with connecting angle brackets 317 at both ends. The connecting angle brackets 317 are used to connect with the lamp body 1. The connecting angle brackets 317 provide a simple, reliable and stable mechanical interface, which facilitates the modular installation and fixing of the entire imaging system inside the lamp body 1, ensuring the overall rigidity and stability of the system, while also having the advantage of simple and quick assembly.

[0044] Among them, the inner ring of the synchronous pulley 312 is fixedly installed with a bearing, and the top end of the rotor 322 is fixedly connected to the inner ring of the bearing to improve the smoothness of rotation, low friction, high concentricity and long service life.

[0045] This utility model also provides a lighting fixture, including the above-described continuous rotating stage lighting optical imaging system.

[0046] The working principle of this embodiment is as follows: During operation, the light generated by the light source 2 is projected upward onto the imaging platform 3; the stator end 31 is fixed to the lamp body 1 via the connecting bracket 317, and the conductive slip ring 313 at the bottom of its fixing plate 311 is connected to the power supply and control circuit of the lamp body 1 via the socket 315; the mounting plate 321 of the rotor end 32 is rotatably mounted relative to the stator end 31 via the rotor 322 on its top, and the contact claws of the brush 329 slide in contact with the conductive slip ring 313, stably transmitting the power and control signals from the stator end to the rotor end drive circuit board 323; the drive circuit board 323 controls the motor 327 to run, and the motor 327 drives the second synchronous pulley 328 to rotate, which in turn drives the first synchronous pulley 312 fixed to the stator end to rotate via the synchronous belt 314. Since the first synchronous pulley 312 and the rotor 322 are connected by bearings, and the motor 327 and the second synchronous pulley 328 are connected by bearings, the first synchronous pulley 312 and the rotor 322 are connected by bearings. Both the 8 and the clamping wheel are mounted on the mounting base 326 at the rotor end. Therefore, the rotation of the synchronous pulley 312 will have a reaction force to drive the entire rotor end 32 to rotate continuously around the axis relative to the stator end 31. At the same time, the positioning Hall 324 fixed at the rotor end cooperates with the magnet 316 fixed at the stator end to detect the rotation angle in real time to achieve precise control. After the imaging platform 3 processes the light (such as cutting light, rotating pattern), the rotation action or effect is projected out through the lens 4 above. In the whole process, the power supply and control signals are stably transmitted through the contact pair of the coaxially rotating conductive slip ring 313 and brush 329, which completely avoids the tangling of the wires. The high wear-resistant slip ring / brush material eliminates carbon powder contamination and short circuit risk. The synchronous belt drive realizes the silent and smooth rotation power transmission, thereby ensuring the imaging platform's unlimited, reliable, low-noise, continuous and precise rotation function.

[0047] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A continuous rotating stage lighting optical imaging system, comprising a lamp body (1), wherein a light source (2), an imaging platform (3), and a lens (4) are sequentially installed inside the lamp body (1) from bottom to top, characterized in that: The imaging platform (3) consists of a stator end (31) and a rotor end (32); The stator end (31) includes a fixing plate (311), and a timing pulley (312) is fixedly installed at the bottom of the fixing plate (311). Multiple sets of conductive slip rings (313) are installed on the bottom side of the timing pulley (312). The central axis of the multiple sets of conductive slip rings (313) is on the same vertical axis as the central axis of the timing pulley (312). The material of the conductive slip rings (313) is beryllium copper alloy. The rotor end (32) includes a mounting plate (321), and a rotor (322) is provided on the top of the mounting plate (321). The top of the rotor (322) is rotatably mounted inside the first synchronous pulley (312). A brush (329) is fixedly mounted on the side of the mounting plate (321) near the rotor (322). The contact claws of the brush (329) are correspondingly set with the conductive slip ring (313) and are in contact with each other. The material of the contact claws is palladium-silver alloy. A motor (327) is mounted on the top of the mounting plate (321). A second synchronous pulley (328) is fixedly mounted on the output shaft of the motor (327). The second synchronous pulley (328) is connected to the first synchronous pulley (312) through a synchronous belt (314).

2. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: Multiple sets of the conductive slip rings (313) are electrically connected to sockets (315), the top of which protrudes from the top of a timing pulley (312).

3. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: The bottom of the mounting plate (321) is fixedly mounted with a drive circuit board (323), and the brush (329) and the motor (327) are electrically connected to the drive circuit board (323).

4. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: The top of the mounting plate (321) is provided with multiple sets of connecting columns (325), and the top of the multiple sets of connecting columns (325) is fixedly installed with mounting bases (326). The motor (327) is fixedly installed on the bottom side of the mounting base (326) by fasteners. The second synchronous pulley (328) is installed on the top side of the mounting base (326). The mounting base (326) has pressure wheels installed on both sides near the second synchronous pulley (328) via shafts, which are used to press the outer side of the synchronous belt (314).

5. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: The top of the mounting plate (321) is fixedly mounted with a positioning Hall (324) by a bracket; the fixing plate (311) is fixedly mounted with a magnet (316) corresponding to the positioning Hall (324).

6. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: The bottom side of the fixing plate (311) is fixedly installed with connecting angle brackets (317) at both ends, and the connecting angle brackets (317) are used to connect with the lamp body (1).

7. The continuous rotating stage lighting optical imaging system as described in claim 1, characterized in that: The inner ring of the synchronous pulley (312) is fixedly mounted with a bearing, and the top end of the rotor (322) is fixedly connected to the inner ring of the bearing.

8. A lamp, characterized in that: Includes the continuous rotating stage lighting optical imaging system as described in any one of claims 1 to 7.

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