Disc type motor and motor driving method

Abstract

The invention discloses a disc type motor and a driving method in the field of motors. The motor comprises a shell, and a plurality of receiving pieces are arranged on the side wall of the shell; the eccentric mechanism is rotatably installed in the middle of the shell, and the driving end of the eccentric mechanism is correspondingly connected with the multiple receiving pieces through a microwave driver; wherein the receiving piece is triggered by a medium, so that the microwave driver deforms to drive the eccentric mechanism to rotate; the eccentric mechanism designed in the invention is matched with a plurality of microwave drivers for use, during use, the receiving piece is triggered by a medium (microwave) to realize rotation of the eccentric mechanism, change of the polarization direction of the microwave and continuous rotation of a motor, and the device can be used for driving equipment in a closed environment where wiring is inconvenient; microwave energy is transmitted in a wireless mode, a wire or contact power supply mode needed by a traditional motor is avoided, and the application flexibility of the motor in a limited space is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of motors, and particularly to a disc motor and a driving method. Background Art

[0002] In many industrial, medical, and special environment applications, motors, as the core driving units, are widely used to provide power for various devices. However, traditional motors generally rely on cable power supply, and their applications in sealed environments, restricted spaces, or special scenarios (such as high-radiation environments, etc.) are greatly limited. For example, in environments such as sealed cabins, inside pipelines, and hazardous areas, the power supply cables of traditional motors not only increase the wiring difficulty but may also lead to difficult equipment maintenance and even affect the overall safety of the system in some cases. In addition, the long-distance laying of motor cables will cause problems such as power transmission loss, signal attenuation, and electromagnetic interference, further restricting the application effect of traditional motors in specific scenarios.

[0003] To solve these problems, wireless drive technology has gradually become a research hotspot, and microwave has attracted attention due to its remote energy supply ability and high energy transmission efficiency. The microwave drive method transmits electromagnetic wave energy wirelessly, enabling the motor to operate efficiently without cables and without contact, especially suitable for sealed or difficult-to-wire environments.

[0004] Therefore, there is an urgent need to develop a disc motor based on remote wireless microwave drive and control. Summary of the Invention

[0005] The purpose of this application is to provide a disc motor and a driving method to solve the problem that motors in the prior art need to be connected to cables for use, resulting in limited scenarios for using motors.

[0006] To achieve the above purpose, the following technical solutions are adopted in this application: In the first aspect, this application discloses a disc motor, which includes: A housing, on the side wall of which there are several receiving components; An eccentric mechanism, which is rotatably installed in the middle of the housing, and the driving end of the eccentric mechanism is correspondingly connected to several receiving components through a microwave driver; Wherein, the receiving component is triggered by a medium, causing the microwave driver to deform and drive the eccentric mechanism to rotate.

[0007] In a further solution of this application, there are multiple first mounting holes corresponding to the receiving components on the side wall of the housing, a spring connecting piece is fixed at the driving end of the eccentric mechanism, and the microwave driver is connected to the corresponding first mounting hole and the spring connecting piece.

[0008] In a further embodiment, the first mounting holes are arranged in a circular array, and the angles between adjacent microwave drivers are equal.

[0009] In a further solution, the spring connector is provided with a second mounting hole corresponding to the first mounting hole, and sleeves are provided in the first mounting hole and the second mounting hole.

[0010] According to a further solution of the present application, the eccentric mechanism includes an output shaft, a rotor and an eccentric shaft, one end of the output shaft is fixedly connected to the axial center point of the rotor, and the output shaft is rotatably mounted in the housing mounting cavity through a bearing, one end of the eccentric shaft is fixed on a side of the rotor away from the output shaft, and the eccentric shaft is fixed at a non-axial position of the rotor.

[0011] According to a further solution of the present application, the receiving element includes a wire, a mounting groove is provided on the housing, the wire is fixed in the mounting groove, and the wire is connected to the microwave driver.

[0012] According to a further solution of the present application, the microwave driver uses an SMA spring.

[0013] In a second aspect, the present application discloses a motor driving method based on the above-mentioned disc motor, which comprises the following steps: The transmitter transmits microwaves to the motor, and the microwaves act on the receiving element and are received by the receiving element; When the polarization direction of the microwave is the same as the installation direction of the receiving element, the receiving element generates an induced current, which is transmitted to the microwave driver, causing it to produce a shape memory effect. Under the action of the phase change force, the driving end of the eccentric mechanism is pulled, causing the eccentric mechanism to rotate.

[0014] According to a further solution of the present application, the continuous rotation of the eccentric mechanism is achieved by changing the direction of polarization; the polarization direction of the microwave is changed in space so that multiple receiving elements have different microwave efficiencies, thereby controlling the timing of the deformation of the microwave driver and pulling the eccentric mechanism to rotate continuously.

[0015] In a further solution of the present application, the rotation direction of the motor is achieved by changing the polarization direction, and the polarization direction is changed by: If the polarization direction of the microwave rotates clockwise in steps, the eccentric mechanism rotates clockwise in steps; If the polarization direction of the microwave rotates counterclockwise in steps, the eccentric mechanism rotates clockwise and counterclockwise in steps.

[0016] The beneficial effects of this application are: In the present application, the designed eccentric mechanism is used in combination with multiple microwave drivers. During use, the receiving component realizes the rotation of the eccentric mechanism through the triggering of the medium (microwave), changes the polarization direction of the microwave, and the motor rotates continuously. It can be used to drive equipment in a closed environment where it is inconvenient to route wires; the microwave energy is transmitted wirelessly, avoiding the wires or contact power supply methods required by traditional motors, and greatly improving its application flexibility in limited spaces.

[0017] In addition, through the way of changing the polarization direction of the microwave, the forward and reverse rotation functions of the motor can also be realized, and it has strong performance in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the disc motor in the embodiment of the present application; Figure 2 It is a schematic installation diagram of the housing and the eccentric mechanism in the embodiment of the present application; Figure 3 It is a schematic structural diagram of the disc motor in the embodiment of the present application; Figure 4 It is a schematic structural diagram of the rotor in the embodiment of the present application; Figure 5 It is a schematic diagram of the driving process of the disc motor in the embodiment of the present application Figure 6 It is a schematic diagram of the counterclockwise rotation timing of the disc motor in the embodiment of the present application; Figure 7 It is a schematic diagram of the clockwise rotation timing of the disc motor in the embodiment of the present application; Figure 8 It is a schematic logic diagram of the driving method of the disc motor in the embodiment of the present application.

[0019] Wherein: 1. Housing; 2. Output shaft; 3. Bearing; 4. Rotor; 5. Eccentric shaft; 6. Sleeve; 7. Microwave driver; 8. Receiving component; 9. Spring connector, 11. First SMA spring; 12. Second SMA spring; 13. Third SMA spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use. Embodiment 1

[0021] As Figure 1 and Figure 2As shown, a disc motor is disclosed in this embodiment. This motor does not need to be connected to a cable and is driven by a signal through a medium. Microwave drive is used here. The motor includes a shell 1 and an eccentric mechanism. A plurality of receiving members 8 are provided on the side wall of the shell 1; the eccentric mechanism is rotatably installed in the middle of the shell 1, and the driving end of the eccentric mechanism is connected to a plurality of receiving members 8 through a microwave driver 7; wherein the receiving member 8 is triggered by the medium, causing the microwave driver 7 to deform and drive the eccentric mechanism to rotate, and the continuous rotation of the motor is achieved by the direction of microwave rotation.

[0022] As attached Figure 1 and Figure 3 As shown, in this embodiment, three first mounting holes corresponding to the receiving elements 8 are provided on the side wall of the shell 1. At this time, the receiving elements 8 are designed to be three, and a spring connector 9 is fixed to the driving end of the eccentric mechanism, and the microwave driver 7 is connected to the corresponding first mounting holes and the spring connector 9; usually, the microwave driver uses an SMA spring, and in order to make the stress of the microwave driver 7 on the eccentric mechanism relatively balanced when the microwave driver 7 is acted upon by microwaves, during design, the first mounting holes are arranged in a circular array, and the angles between adjacent microwave drivers 7 are equal. In this embodiment, the angle between adjacent microwave drivers 7 is 120°; the microwave driver 7 usually uses an SMA spring; in addition, for the selection of the receiving element 8, in order to cooperate with the use of microwaves, the receiving element 8 uses a wire, and a mounting groove is set on the shell 1, the wire is fixed in the mounting groove, and the wire is connected to the microwave driver 7.

[0023] In a further embodiment, a second mounting hole corresponding to the first mounting hole is provided on the spring connector 9, and a sleeve 6 is provided in the first mounting hole and the second mounting hole, and the sleeve 6 is used to prevent the microwave driver 7 from directly contacting the housing 1 and the spring connector 9, because when in use, the microwave driver 7 (SMA spring) may damage the printed part after the temperature is too high during the driving process. The surface wear of the contact surface is avoided and the service life is increased.

[0024] As attached Figure 2 and Figure 4 As shown, the eccentric mechanism in this embodiment includes an output shaft 2, a rotor 4 and an eccentric shaft 5. One end of the output shaft 2 is fixedly connected to the axis point of the rotor 4, and the output shaft 2 is rotatably installed in the installation cavity of the housing 1 through a bearing 3. During installation, two bearings 3 are respectively fixed at both ends of the output shaft 2, one end of the eccentric shaft 5 is fixed to the side of the rotor 4 away from the output shaft 2, and the eccentric shaft 5 is fixed at a non-axial position of the rotor 4; that is, the eccentric shaft 5 is fixed in a non-coaxial hole of the rotor 4, thereby configuring an eccentric mechanism.

[0025] This disc motor can provide stable and reliable driving capabilities in complex, closed and restricted environments, while also having efficient energy transmission and precise motion control to meet the needs of industrial automation, medical equipment, aerospace and special environment applications. Embodiment 2

[0026] As shown in the Figure 8 accompanying drawings, this embodiment discloses a motor driving method, which is implemented based on the disc motor of the above Embodiment 1. The steps include that the transmitter emits microwaves to the motor, and the microwaves are received by the receiving member 8; when the polarization direction of the microwaves is the same as the installation direction of the receiving member 8, the receiving member 8 generates an induced current, and the induced current is transmitted to the microwave driver 7, causing it to generate a shape memory effect, and under the action of the phase change force, pulling the driving end of the eccentric mechanism, so that the eccentric mechanism rotates.

[0027] As shown in the Figures 5 to 7 accompanying drawings, in some embodiments, the motor driving method is implemented in the following manner; The continuous rotation of the eccentric mechanism is achieved by changing the direction of the microwave polarization direction; the polarization direction of the microwaves is changed in space, so that multiple receiving members 8 have different microwave efficiencies, and then the timing of the deformation of the microwave driver 7 can be controlled, pulling the eccentric shaft 5 to transmit power to the output shaft 2, so that the output shaft 2 rotates continuously.

[0028] As shown in the Figure 5 accompanying drawings, taking three microwave drivers 7 as an example, 1) When the polarization direction (E) of the microwaves is parallel to the receiving member 8 (wire) of the first SMA spring 11, the polarization efficiency between the two is 1 at this time, while the polarization efficiency between the wires of the second and third SMA springs and the space microwaves is 0.5. Therefore, a larger induced current is generated on the wire connected to the first SMA spring 11 and conducts to the adjacent SMA spring, generating Joule heat. Under the action of the Joule heat, the SMA spring undergoes a martensite-austenite phase change and activates the shape memory effect, pulling the rotor 4 towards its own direction. At this time, the output shaft 2 rotates 120°.

[0029] 2) When the polarization direction of the microwaves changes (the polarization direction changes by 60°), the polarization efficiency between the wire connected to the second SMA spring 12 and the microwaves becomes 1, and the microwave power it receives increases, generating a shape memory effect (the spring shortens); while the microwave power received by the first SMA spring 11 decreases, and the temperature drops under the action of natural cooling and an austenite-martensite phase change (the spring elongates) occurs. Therefore, the eccentric shaft 5 moves towards the direction of the second SMA spring 12, and the output shaft 2 rotates 120°.

[0030] 3) Similarly, when the polarization direction of the microwaves changes by 60° and is parallel to the wire of the third SMA spring 13, the second SMA spring 12 is driven, and the first and second SMA springs are cooled and stretched; after the output shaft 2 rotates 120°, a full cycle of motion is completed.

[0031] As can be seen from the above, when the polarization direction of the microwave in space rotates clockwise at intervals of 60°, the microwave-actuated motor rotates clockwise in steps of 120°; when the polarization direction of the microwave in space rotates counterclockwise at intervals of 60°, the microwave-actuated motor rotates counterclockwise.

[0032] Among them, the rotation direction of the output shaft 2 is related to the change sequence of the microwave polarization direction in space. When the polarization direction rotates clockwise in steps of 60°, the output shaft 2 rotates clockwise in steps of 120°; when the polarization direction rotates counterclockwise in steps of 60°, the output shaft 2 rotates counterclockwise in steps of 120°. Due to the driving principle and structure of the motor, the motor has a built-in speed-increasing characteristic.

[0033] Compared with the traditional power supply method, microwave drive can not only reduce the complexity of cable layout, but also reduce the safety hazards caused by cable wear, fracture or aging. In addition, the remote transmission ability and selective heating characteristics of microwaves enable it to efficiently drive target devices under specific frequencies and polarization conditions without affecting the surrounding environment, providing a new way for high-precision and remote control.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

Claims

1. A disc motor, characterized in that: include: A housing (1), wherein a plurality of receiving members (8) are provided on a side wall of the housing (1); An eccentric mechanism, the eccentric mechanism being rotatably mounted in the middle of the housing (1), and a driving end of the eccentric mechanism being connected to a plurality of receiving elements (8) via a microwave driver (7); The receiving element (8) is triggered by the medium, causing the microwave driver (7) to deform and drive the eccentric mechanism to rotate.

2. The disc motor according to claim 1, characterized in that: A plurality of first mounting holes corresponding to the receiving member (8) are provided on the side wall of the housing (1), a spring connecting member (9) is fixed to the driving end of the eccentric mechanism, and the microwave driver (7) is connected to the corresponding first mounting holes and the spring connecting member (9).

3. The disc motor according to claim 2, characterized in that: The first mounting holes are arranged in a circular array, and the included angles between adjacent microwave drivers (7) are equal.

4. The disc motor according to claim 2, characterized in that: The spring connector (9) is provided with a second mounting hole corresponding to the first mounting hole, and sleeves (6) are provided in the first mounting hole and the second mounting hole.

5. The disc motor according to claim 1, characterized in that: The eccentric mechanism comprises an output shaft (2), a rotor (4) and an eccentric shaft (5); one end of the output shaft (2) is fixedly connected to the axis center point of the rotor (4), and the output shaft (2) is rotatably mounted in the mounting cavity of the housing (1) via a bearing (3); one end of the eccentric shaft (5) is fixed on a side of the rotor (4) away from the output shaft (2), and the eccentric shaft (5) is fixed at a non-axis center position of the rotor (4).

6. The disc motor according to claim 1, characterized in that: The receiving element (8) comprises a wire, the housing (1) is provided with a mounting groove, the wire is fixed in the mounting groove, and the wire is connected to the microwave driver (7).

7. The disc motor according to claim 1, characterized in that: The microwave driver (7) is a SMA spring.

8. A motor driving method based on the disc motor according to any one of claims 1 to 7, characterized in that: include The transmitter transmits microwaves to the motor, and the microwaves act on the receiving element (8) and are received by the receiving element (8); When the polarization direction of the microwave is the same as the installation direction of the receiving element (8), the receiving element (8) generates an induced current, which is transmitted to the microwave driver (7), causing it to produce a shape memory effect, and under the action of the phase change force, the driving end of the eccentric mechanism is pulled, causing the eccentric mechanism to rotate.

9. The motor driving method according to claim 8, characterized in that: The continuous rotation of the eccentric mechanism is achieved by changing the direction of polarization; the polarization direction of the microwave is changed in space so that the multiple receiving elements (8) have different microwave efficiencies, thereby controlling the timing of the deformation of the microwave driver (7) and driving the eccentric mechanism to rotate continuously.

10. The motor driving method according to claim 9, characterized in that: The rotation direction of the motor is achieved by changing the polarization direction, and the polarization direction is changed by: If the polarization direction of the microwave rotates clockwise in steps, the eccentric mechanism rotates clockwise in steps; If the polarization direction of the microwave rotates counterclockwise in steps, the eccentric mechanism rotates clockwise and counterclockwise in steps.

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