Rotating drive device and LED light belt rotating imaging device

Abstract

The present invention provides a rotation driving device and an LED light strip rotation imaging device, wherein the rotation driving device comprises a motor for driving the LED light strip to rotate, a control panel for controlling the operation of the LED light strip, a receiving coil for receiving electromagnetic energy to supply power to the LED light strip, a transmitting coil for transmitting electromagnetic energy to the receiving coil, and a wireless transmitting panel for controlling the transmitting coil; the motor comprises a stator and a rotor rotatably installed in the stator, the transmitting coil and the receiving coil are respectively arranged as flat coils, the receiving coil and the transmitting coil are respectively arranged around the rotor, and the transmitting coil and the receiving coil are arranged in parallel and at intervals. In the process of wireless power supply, since the transmitting coil and the receiving coil are integrated in the rotor part of the motor, a strong eddy current effect will not be generated in the entire motor, thus avoiding eddy current heating in the motor and causing failure, reducing energy loss in the process of wireless power supply, shortening the distance between the transmitting coil and the receiving coil, and improving the wireless transmission efficiency of electromagnetic energy.

Description

Technical Field

[0001] The present invention belongs to the technical field of POV-based imaging display, and more specifically, relates to a rotation driving device and an LED light strip rotation imaging device. Background Art

[0002] At present, various new imaging display technologies are emerging one after another, and the dynamic display technology of LED (Light Emitting Diode) rotation imaging based on POV (persistence of vision) technology is one of them. For example, the LED light strip rotation imaging device is an LED light strip composed of ultra-high-density LEDs assembled on a strip-shaped FPC (Flexible Printed Circuit) or PCB (Printed Circuit Board). When rotating at high speed, it produces a 3D visual effect through the visual persistence of the human eye.

[0003] LED light strip rotating imaging equipment usually needs to use a driving motor combined with a wireless power supply device to power the 360° high-speed rotating LED light strip load to ensure that the LED light strip rotating imaging equipment can work normally. At present, the wireless power supply device used in the LED light strip rotating imaging equipment sequentially sets the cylindrical transmitting coil and the cylindrical receiving coil from the inside to the outside on the outer periphery of the entire driving motor. This structure will produce a strong eddy current effect in the driving motor, which is easy to cause eddy current heating of the driving motor and cause failure. At the same time, it also reduces the efficiency of wireless power supply, increases the energy loss in the wireless power supply process, and has a great impact on the stability and reliability of the LED light strip rotating imaging equipment. Summary of the invention

[0004] One of the purposes of the present invention is to provide a rotational drive device to solve the problem in the prior art that a wireless power supply device used in a rotating imaging device with an LED light strip will generate a strong eddy current effect in the drive motor, which can easily cause damage to the drive motor and increase energy loss.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a rotation drive device, including a motor for driving an LED light strip to rotate, a control board for controlling the operation of the LED light strip, a receiving coil for receiving electromagnetic energy to power the LED light strip, a transmitting coil for sending electromagnetic energy to the receiving coil, and a wireless transmitting board for controlling the transmitting coil; the motor includes a stator and a rotor rotatably installed in the stator, the transmitting coil and the receiving coil are respectively arranged as flat coils, the transmitting coil is arranged around the rotor, the receiving coil is arranged around the rotor, the transmitting coil and the receiving coil are parallel and spaced apart; the wireless transmitting board is fixed on the stator, and the transmitting coil is connected to the wireless transmitting board; the control board is connected to the rotor, and the receiving coil is connected to the control board.

[0006] Furthermore, a first magnetic shielding plate for magnetic shielding is provided on a side of the receiving coil away from the transmitting coil, and a second magnetic shielding plate for magnetic shielding is provided on a side of the transmitting coil away from the receiving coil.

[0007] Furthermore, the receiving coil includes a first single-layer coil wound in a ring shape from inside to outside using a single enameled wire and two first terminals led out from the first single-layer coil, and the first single-layer coil is fixed on the first magnetic isolation plate at one side away from the transmitting coil.

[0008] Furthermore, the transmitting coil includes a second single-layer coil wound in a ring shape from inside to outside using a single enameled wire and two second terminals led out from the second single-layer coil, and the second single-layer coil is fixed on the second magnetic isolation plate at one side away from the receiving coil.

[0009] Furthermore, the first magnetic isolation plate and the second magnetic isolation plate are parallel and oppositely arranged, and the area of ​​the first magnetic isolation plate is larger than the area of ​​the receiving coil, and the area of ​​the second magnetic isolation plate is larger than the area of ​​the transmitting coil.

[0010] Furthermore, the rotation drive device also includes a plurality of pillars supporting the transmitting coil on a side of the stator close to the receiving coil, one end of each of the pillars is fixed to the wireless transmitting board, and the other end of each of the pillars is connected to the transmitting coil.

[0011] Furthermore, the rotation drive device also includes a ring plate that supports and fixes the transmitting coil, the ring plate is rotatably sleeved on the outer side of the rotor so that the rotor can rotate relative to the ring plate, and the other end of each of the pillars is connected to the ring plate.

[0012] Furthermore, the wireless transmitting board is installed at an end of the stator away from the transmitting coil.

[0013] Furthermore, the receiving coil and the transmitting coil are arranged in mirror symmetry.

[0014] The second purpose of the present invention is to provide an LED light strip rotating imaging device to solve the problem that the wireless power supply device used in the LED light strip rotating imaging device in the prior art will produce a strong eddy current effect in the driving motor, which is easy to cause damage to the driving motor and increase energy loss.

[0015] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide an LED light strip rotating imaging device, including the above-mentioned rotating driving device.

[0016] The beneficial effects of the LED light strip rotating imaging device and the rotating drive device provided by the present invention are as follows: compared with the prior art, the rotating drive device of the present invention realizes the wireless transmission of electromagnetic energy by relatively arranging the transmitting coil and the receiving coil, so as to wirelessly power the LED light strip load in high-speed rotation. Due to the use of a flat transmitting coil and a flat receiving coil, the eddy current effect is only generated in a small range of the rotor, and a strong eddy current effect will not be generated in the motor, thereby avoiding eddy current heating in the motor and causing failures, and reducing energy loss in the wireless power supply process. In addition, the distance between the transmitting coil and the receiving coil is shortened, and the strength of the magnetic induction coupling between the transmitting coil and the receiving coil is enhanced, thereby improving the transmission efficiency of the electromagnetic energy between the transmitting coil and the receiving coil, thereby increasing the output power of the wireless power supply device, and enhancing the stability and reliability of the operation of the LED light strip rotating imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a rotation drive device provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a rotation drive device provided in an embodiment of the present invention in a side view;

[0020] Figure 3 A schematic diagram of the structure of a rotation drive device provided in an embodiment of the present invention in a top view;

[0021] Figure 4 A schematic diagram of the structure of a receiving coil of a rotation drive device provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the structure of a transmitting coil of a rotation drive device provided in an embodiment of the present invention.

[0023] Among them, the main marks of the drawings in the figure are:

[0024] 1-motor; 11-stator; 12-rotor; 2-control board;

[0025] 3-receiving coil; 31-first single-layer coil; 32-first terminal;

[0026] 4-transmitting coil; 41-second single-layer coil; 42-second terminal;

[0027] 5-wireless transmitting board; 6-first magnetic isolation board; 7-second magnetic isolation board;

[0028] 8-pillar; 9-ring plate. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Please also read Figures 1 to 3 , the rotary drive device provided by the embodiment of the present invention is now described. The rotary drive device provided by the embodiment of the present invention includes a motor 1 for driving the LED light strip to rotate, a control board 2 for controlling the operation of the LED light strip, a receiving coil 3 for receiving electromagnetic energy to power the LED light strip, a transmitting coil 4 for sending electromagnetic energy to the receiving coil 3, and a wireless transmitting board 5 for controlling the transmitting coil 4. Based on the principle of electromagnetic resonance, electromagnetic energy transmission is realized through the transmitting coil 4 and the receiving coil 3 to realize wireless power supply. Among them, the motor 1 includes a stator 11 and a rotor 12 rotatably installed in the stator 11, the transmitting coil 4 and the receiving coil 3 are respectively arranged as flat coils, the transmitting coil 4 is arranged around the rotor 12, the receiving coil 3 is arranged around the rotor 12, and the transmitting coil 4 is parallel to the receiving coil 3 and arranged at intervals; the wireless transmitting board 5 is fixed on the stator 11, and the transmitting coil 4 is connected to the wireless transmitting board 5; the control board 2 is connected to the rotor 12, and the receiving coil 3 is connected to the control board 2. When the motor 1 drives the LED light strip to rotate at a high speed, the wireless transmission of electromagnetic energy is realized by relatively arranging the transmitting coil 3 and the receiving coil 4, so as to wirelessly power the LED light strip load rotating at a high speed.

[0035] The basic working principle of the rotary drive device provided by the present invention is as follows: when the LED light strip rotating imaging device is working, the transmission of wireless power supply energy based on the electromagnetic resonance principle is realized by transmitting coil 4 and receiving coil 3 to realize electromagnetic energy transmission, and the electromagnetic energy received by receiving coil 3 is supplied to the LED light strip load on the LED light strip rotating imaging device through the control circuit integrated on the control board 2. Specifically, the wireless transmitting board 5 integrated with the wireless power supply circuit converts the input direct current into alternating current of a certain frequency through the wireless power supply circuit. When the frequency of the alternating current is the same as the natural frequency of the transmitting circuit and the receiving circuit, a resonant state is reached to realize strong coupling of the magnetic field, thereby realizing wireless transmission of electromagnetic energy. Since the magnitude of the electromagnetic energy received by the receiving coil 3 is determined by the load condition of the LED light strip load, the electromagnetic energy received by the receiving coil 3 will be different if the load size is different. The wireless transmitting board 5 integrated with the wireless transmission control circuit detects the electrical parameters of the transmitting coil 4 to obtain whether the receiving coil 3 end has a load, and then determines and controls the working state of the transmitting coil 4, so that the transmitting coil 4 automatically works in a standby state when there is no load at the receiving circuit end to reduce energy consumption, realizes the control of the transmitting circuit with load changes, and reduces energy loss. Among them, the control circuit integrated on the control board 2 and the wireless control board 2 integrated with the wireless power supply circuit and the wireless transmission control circuit are conventional technologies well known to those skilled in the art and will not be described in detail here.

[0036] Compared with the prior art, the rotary drive device provided by the present invention is provided with a flat receiving coil 3 for receiving electromagnetic energy to supply power to the LED light strip on the rotor 12 of the motor 1, and a flat transmitting coil 4 for transmitting electromagnetic energy to the flat receiving coil 3 is installed on the stator 11 of the motor 1, so that the wireless transmission of electromagnetic energy is realized through the relatively arranged flat transmitting coil 4 and the flat receiving coil 3, and the wireless power supply to the LED light strip load in high-speed rotation is realized. In the process of wireless power supply, since the flat transmitting coil 4 and the flat receiving coil 3 are integrated and arranged in the rotor 12 of the motor 1, the eddy current effect is only generated in a small range of the rotor 12 of the motor 1, and a strong eddy current effect will not be caused to the entire motor 1, thereby avoiding the eddy current heating of the motor 1 and causing failure, and reducing the energy loss in the process of wireless power supply. In addition, the flat transmitting coil 4 and the flat receiving coil 3 are integrated in the rotor 12 of the motor 1, which shortens the distance between the transmitting coil 4 and the receiving coil 3, enhances the strength of the magnetic induction coupling between the transmitting coil 4 and the receiving coil 3, thereby improving the transmission efficiency of the electromagnetic energy between the transmitting coil 4 and the receiving coil 3, thereby increasing the output power of the rotation drive device, enhancing the stability and reliability of the LED light strip rotating imaging device, and reducing the volume of the LED light strip rotating imaging device.

[0037] Preferably, please also refer to Figure 2As a specific implementation of the rotation drive device provided by an embodiment of the present invention, the receiving coil 3 and the transmitting coil 4 are arranged in mirror symmetry, that is, the receiving coil 3 and the transmitting coil 4 have the same shape and size, and the receiving coil 3 and the transmitting coil 4 are arranged parallel to each other and face each other, so that the receiving coil 3 and the transmitting coil 4 are aligned with each other at a small distance, thereby realizing efficient transmission of electromagnetic energy and greatly reducing the generation of eddy currents.

[0038] For further information, please also refer to Figure 1 and Figure 2 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, a first magnetic isolation plate 6 for magnetic shielding is provided on the side of the receiving coil 3 away from the transmitting coil 4, and a second magnetic isolation plate 7 for magnetic shielding is provided on the side of the transmitting coil 4 away from the receiving coil 3.

[0039] In this embodiment, a first magnetic shielding plate 6 is provided on the side of the receiving coil 3 away from the transmitting coil 4, and a second magnetic shielding plate 7 is provided on the side of the transmitting coil 4 away from the receiving coil 3. Through the magnetic shielding effect of the first magnetic shielding plate 6 and the second magnetic shielding plate 7, on the one hand, the scattering of magnetic flux lines is effectively prevented, so that the magnetic flux lines of the coupled magnetic field are gathered between the transmitting coil 4 and the receiving coil 3, so as to realize efficient transmission of electromagnetic energy and thereby increase the output power of the rotating drive device; on the other hand, the generation of eddy current effect is effectively reduced, so as to avoid the heat generated by eddy current effect from damaging the LED light strip rotating imaging device, and reduce the energy loss in the power supply process.

[0040] Specifically, the first magnetic isolation plate 6 and the second magnetic isolation plate 7 are made of magnetically conductive ferrite. Of course, the first magnetic isolation plate 6 and the second magnetic isolation plate 7 in this embodiment can also be replaced by magnetic isolation sheets or magnetic shielding films made of ferrite. Among them, the second magnetic isolation plate 7 can be replaced by a soft magnetic sheet (alloy magnetic powder added to plastic or rubber, and then processed and formed). The material is relatively soft and the thickness is very thin. It can be punched according to the shape and size of the magnetic isolation sheet required by the wireless charging solution.

[0041] For further information, please also refer to Figure 4 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the receiving coil 3 includes a first single-layer coil 31 wound in a ring shape from inside to outside using a single enameled wire and two first connection terminals 32 led out from the first single-layer coil 31. The first single-layer coil 31 is fixed on the first magnetic isolation plate 6 on one side away from the transmitting coil 4.

[0042] In this embodiment, the receiving coil 3 is configured as a first single-layer coil 31 having two first connecting terminals 32, and the flat first single-layer coil 31 is combined with the first magnetic isolation plate 6 over a large area. The first magnetic isolation plate 6 (made of ferrite) has a unique saturation magnetic density and a large cross-section to reduce the magnetic permeability, which can effectively reduce the influence of the bias current, achieve the purpose of maximizing the utilization of the magnetic induction energy, realize the efficient transmission of electromagnetic energy, and thereby increase the output power of the rotating drive device.

[0043] Please also refer to Figure 5 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the transmitting coil 4 includes a second single-layer coil 41 wound in a ring from inside to outside using a single enameled wire and two second connection terminals 42 led out from the second single-layer coil 41, and the second single-layer coil 41 is fixed on the second magnetic isolation plate 7 on one side away from the receiving coil 3.

[0044] In this embodiment, the transmitting coil 4 is configured as a second single-layer coil 41 having two second connecting terminals 42, and the flat second single-layer coil 41 is combined with the second magnetic isolation plate 7 over a large area. The second magnetic isolation plate 7 (made of ferrite) has unique saturation magnetic density and large cross-section to reduce the magnetic permeability, which can effectively reduce the influence of bias current, achieve the purpose of maximizing the utilization of magnetic induction energy, realize efficient transmission of electromagnetic energy, and thereby increase the output power of the rotating drive device.

[0045] Please also refer to Figure 1 and Figure 2 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the first magnetic isolation plate 6 and the second magnetic isolation plate 7 are parallel and oppositely arranged, and the area of ​​the first magnetic isolation plate 6 is larger than the area of ​​the receiving coil 3, and the area of ​​the second magnetic isolation plate 7 is larger than the area of ​​the transmitting coil 4.

[0046] In this example, the first magnetic isolation plate 6 and the second magnetic isolation plate 7 are arranged parallel and opposite to each other, and the area of ​​the first magnetic isolation plate 6 is larger than the area of ​​the receiving coil 3, and the area of ​​the second magnetic isolation plate 7 is larger than the area of ​​the transmitting coil 4, so as to better prevent the scattering of magnetic flux lines, realize efficient transmission and utilization of electromagnetic energy, increase the output power of the rotating drive device, reduce the generation of eddy current effect, and reduce energy loss in the power supply process.

[0047] Preferably, please also refer to Figure 1 and Figure 2 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the first magnetic isolation plate 6 and the second magnetic isolation plate 7 are arranged in mirror symmetry to improve the effect of preventing the scattering of magnetic flux lines.

[0048] Please also refer to Figure 1 and Figure 2 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the rotation drive device also includes a plurality of pillars 8 supporting the transmitting coil 4 on the side of the stator 11 close to the receiving coil 3, one end of each pillar 8 is fixed on the wireless transmitting board 5, and the other end of each pillar 8 is connected to the transmitting coil 4.

[0049] In this embodiment, a plurality of pillars 8 are provided on the wireless transmitting board 5, and the transmitting coil 4 is supported on the side of the stator 11 close to the receiving coil 3 by the plurality of pillars 8, thereby shortening the distance between the transmitting coil 4 and the receiving coil 3, and enhancing the strength of the magnetic induction coupling between the transmitting coil 4 and the receiving coil 3, thereby improving the transmission efficiency of the electromagnetic energy between the transmitting coil 4 and the receiving coil 3, and further increasing the output power of the rotary drive device. At the same time, the transmitting coil 4 is supported on the side of the stator 11 close to the receiving coil 3 by the plurality of pillars 8, and the distance between the receiving coil 3 and the wireless transmitting board 5 is also increased, which is beneficial to the heat dissipation of the wireless transmitting board 5 and the transmitting coil 4, and avoids the wireless transmitting board 5 and the transmitting coil 4 from being burned and damaged due to the heat accumulation that cannot be dissipated in time, and affecting the stability and reliability of the power supply of the rotary drive device.

[0050] Please also refer to Figure 1 and Figure 2 As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the rotation drive device also includes a ring plate 9 that supports and fixes the transmitting coil 4. The ring plate 9 is rotatably sleeved on the outer side of the rotor 12 so that the rotor 12 can rotate relative to the ring plate 9. The other end of each pillar 8 is connected to the ring plate 9.

[0051] In this embodiment, the transmitting coil 4 is supported and fixed on the ring plate 9 by rotating the ring plate 9 on the outer side of the rotor 12, so that the force on the transmitting coil 4 is uniform, and the stability of the installation of the transmitting coil 4 is enhanced, so as to avoid the mechanical vibration of the motor 1 during operation causing the paint film of the transmitting coil 4 to wear and crack, resulting in a short circuit between turns, and affecting the stability of the wireless power supply.

[0052] Preferably, the rotary drive device further includes a bearing (not shown in the figure) rotatably connecting the ring plate 9 and the rotor 12, the inner ring of the bearing is sleeved on the outer peripheral surface of the rotor 12, and the outer ring of the bearing is connected to the ring plate 9. The ring plate 9 is rotatably mounted on the rotor 12 through the bearing to avoid interference of the ring plate 9 with the rotation of the rotor 12, thereby improving the stability and smoothness of the rotation of the rotor 12.

[0053] Please also refer to Figure 1 and Figure 2As a specific implementation of the rotation drive device provided in an embodiment of the present invention, the wireless transmitting board 5 is installed at one end of the stator 11 away from the transmitting coil 4 to prevent the heat generated by the motor 1 during operation from affecting or even damaging the electrical components on the wireless transmitting board 5.

[0054] For further information, please also refer to Figure 1 , Figure 2 and Figure 3 As a specific implementation of the rotary drive device provided in an embodiment of the present invention, a through hole for the rotor 12 to pass through is provided in the middle position of the control board 2, and the control board 2 is mounted on the end of the rotor 12 away from the stator 11 to reduce the volume of the rotary drive device and make the LED light strip rotary imaging device tend to be miniaturized.

[0055] An embodiment of the present invention further provides an LED light strip rotating imaging device, which includes the LED light strip rotating imaging device.

[0056] The rotary drive device of the LED light strip rotary imaging device provided by the present invention is provided with a flat receiving coil 3 for receiving electromagnetic energy to supply power to the LED light strip on the rotor 12 of the motor 1, and a flat transmitting coil 4 for transmitting electromagnetic energy to the flat receiving coil 3 is installed on the stator 11 of the motor 1, thereby realizing wireless transmission of electromagnetic energy through the relatively arranged flat transmitting coil 4 and the flat receiving coil 3, and realizing wireless power supply to the LED light strip load in high-speed rotation. In the process of wireless power supply, since the flat transmitting coil 4 and the flat receiving coil 3 are integrated and arranged in the rotor 12 part of the motor 1, the eddy current effect is only generated in a small range of the rotor 12 part of the motor 1, and a strong eddy current effect will not be caused to the entire motor 1, thereby avoiding eddy current heating of the motor 1 and causing failure, and reducing energy loss in the process of wireless power supply. In addition, the flat transmitting coil 4 and the flat receiving coil 3 are integrated in the rotor 12 of the motor 1, which shortens the distance between the transmitting coil 4 and the receiving coil 3, enhances the strength of the magnetic induction coupling between the transmitting coil 4 and the receiving coil 3, thereby improving the transmission efficiency of the electromagnetic energy between the transmitting coil 4 and the receiving coil 3, thereby increasing the output power of the rotation drive device, enhancing the stability and reliability of the LED light strip rotating imaging device, and reducing the volume of the LED light strip rotating imaging device.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotation drive device for supplying power to an LED light strip on an LED light strip rotation imaging device, characterized in that: It comprises a motor for driving an LED light strip to rotate, a control board for controlling the operation of the LED light strip, a receiving coil for receiving electromagnetic energy to supply power to the LED light strip, a transmitting coil for sending electromagnetic energy to the receiving coil, and a wireless transmitting board for controlling the transmitting coil; the motor comprises a stator and a rotor rotatably installed in the stator, the transmitting coil and the receiving coil are respectively arranged as flat coils, the transmitting coil is arranged around the rotor, the receiving coil is arranged around the rotor, the transmitting coil and the receiving coil are arranged in parallel and at intervals; the wireless transmitting board is fixed on the stator, the transmitting coil is connected to the wireless transmitting board; the control board is connected to the rotor, the receiving coil is connected to the control board; a through hole is provided in the middle of the control board for the rotor to pass through.

2. The rotary drive device according to claim 1, characterized in that: A first magnetic shielding plate for magnetic shielding is provided on a side of the receiving coil away from the transmitting coil, and a second magnetic shielding plate for magnetic shielding is provided on a side of the transmitting coil away from the receiving coil.

3. The rotary drive device according to claim 2, characterized in that: The receiving coil includes a first single-layer coil wound in a ring shape from inside to outside using a single enameled wire and two first terminals led out from the first single-layer coil. The first single-layer coil is fixed to the first magnetic isolation plate on one side away from the transmitting coil.

4. The rotary drive device according to claim 2, characterized in that: The transmitting coil includes a second single-layer coil wound in a ring shape from inside to outside using a single enameled wire and two second terminals led out from the second single-layer coil. The second single-layer coil is fixed to the second magnetic isolation plate on one side away from the receiving coil.

5. The rotary drive device according to claim 2, characterized in that: The first magnetic isolation plate and the second magnetic isolation plate are parallel and oppositely arranged, and the area of ​​the first magnetic isolation plate is larger than the area of ​​the receiving coil, and the area of ​​the second magnetic isolation plate is larger than the area of ​​the transmitting coil.

6. The rotary drive device according to claim 1, characterized in that: The rotation driving device also includes a plurality of pillars supporting the transmitting coil on a side of the stator close to the receiving coil, one end of each of the pillars is fixed to the wireless transmitting board, and the other end of each of the pillars is connected to the transmitting coil.

7. The rotary drive device according to claim 6, characterized in that: The rotary drive device also includes a ring plate for supporting and fixing the transmitting coil, the ring plate is rotatably sleeved on the outer side of the rotor so that the rotor can rotate relative to the ring plate, and the other end of each of the pillars is connected to the ring plate.

8. The rotary drive device according to claim 7, characterized in that: The wireless transmitting board is installed at one end of the stator away from the transmitting coil.

9. The rotary drive device according to any one of claims 1 to 8, characterized in that: The receiving coil and the transmitting coil are arranged in mirror symmetry.

10. An LED light belt rotating imaging device, characterized in that: It comprises a rotary drive device as claimed in any one of claims 1 to 9.

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