Copolar vector drive motor

Abstract

The invention relates to a like-pole vector drive motor comprising a power supply control unit (10), a stator (20), and a rotor (30). The stator (20) has a stator body (201) and several electromagnets (202) arranged along the circumferential side of the stator body (201) and intermittently supplied with current by the power supply control unit (10) to generate electromagnetic forces. Several magnets (302) are arranged along the circumferential side of the rotor body (301) of the rotor (30). The rotor body (301) and the stator body (201) are coaxially penetrated by a central shaft (40).When the rotor body (301) rotates with the central shaft (40) relative to the stator body (201), the power supply control unit (10) supplies a direct current to the electromagnets (202) only when the magnets reach the positions of the electromagnets (202), whereby the electromagnets (202) each generate an electromagnetic force which has the same magnetic polarity as the magnets in order to continuously rotate the rotor by means of the magnetic repulsion force.

Description

Technical field

[0001] The invention relates to a motor, in particular a common-pole vector drive motor, which is operated with direct current and has low energy consumption and high torque. State of the art

[0002] There are many types of motors. Taiwanese patent M556434 describes an electric motor with low energy consumption and high efficiency. In its basic structure, the motor consists primarily of a stator and a rotor. The stator is stationary, while the rotor rotates around its axis and is supported by bearings. A certain air gap exists between the stator and the rotor to allow the rotor to rotate freely.

[0003] Motors can be divided into direct current (DC) motors and alternating current (AC) motors. The principle of a DC motor is that the stator remains stationary, and the rotor rotates in the direction of the force generated by the interaction. In an AC motor, the stator winding is supplied with alternating current to generate a rotating magnetic field. This rotating magnetic field attracts the rotor, causing it to rotate.

[0004] Using a typical three-phase motor as an example, the three-phase alternating current consists of three alternating currents with a phase difference of 120 degrees and the same magnitude and frequency. Under the influence of the magnetic field of the wound stator, the central conductor induces a current according to Fleming's right-hand rule. When the alternating current changes, the magnetic poles also rotate. The direction of movement of a conductor in a moving magnetic field coincides with the magnetic field, so the rotor rotates along with it.

[0005] Generally, household AC power supplies are single-phase. Because single-phase AC current has a current whose magnitude and direction change over time, the magnetic field cannot be used to directly drive the rotor. Therefore, a single-phase induction motor, unlike a three-phase induction motor which only has a running winding, requires an additional starting winding. The starting winding has a 90-degree phase shift in the forward direction relative to the running winding to ensure the rotor's rotation. Object of the invention

[0006] The invention provides a like-pole vector drive motor comprising: a power supply control unit; a stator having a stator body and several electromagnets arranged at equal angles along the circumferential side of the stator body, the stator body being fixed in a rotational position and movably penetrated by a central shaft, the electromagnets being electrically connected to the power supply control unit; and a rotor having a rotor body and several magnets arranged at equal angles along the circumferential side, the rotor body being attached to the central shaft; wherein, when the rotor body rotates with the central shaft relative to the stator body, the power supply control unit supplies a direct current to the electromagnets only when the magnets reach the positions of the electromagnets, thereby each generating an electromagnetic force.which has the same magnetic polarity as the magnets, in order to continuously rotate the rotor through magnetic repulsion. When the magnets leave the electromagnets during rotation of the rotor body relative to the stator body, the power supply control unit interrupts the power supply to the electromagnets, which thus cease to generate a magnetic force. The rotor body continues to rotate due to rotational inertia until the magnets again reach the positions of the electromagnets. At that point, the power supply control unit again supplies direct current to the electromagnets so that they each generate a magnetic force to continuously rotate the rotor body through magnetic repulsion. The invention rotates the rotor through the intermittent power supply in combination with the repulsion force, thereby saving half the power consumption.

[0007] In one embodiment of the invention, when the electromagnets are energized, they generate magnetic forces of opposite polarity on two opposite sides in the radial direction of the stator body. Several first magnets are arranged on the radially outer side of the rotor body, and several second magnets are arranged on the radially inner side of the rotor body. The first and second magnets exert a magnetic repulsion force on the electromagnets. In the invention, an electromagnetic force is generated on two opposite sides of each electromagnet. In combination with the outer and inner magnets in the radial direction, the torque can be doubled, resulting in a reduction of one-quarter of the power consumption.

[0008] In one embodiment of the invention, the rotor body forms an outer wall and an inner wall in the radial direction, with the first magnets arranged on the outer wall and the second magnets on the inner wall; and a projecting wall is formed on one side of the stator body, with the first electromagnets arranged on the outer circumferential side of the projecting wall and the second electromagnets arranged on the inner circumferential side of the projecting wall. The projecting wall is located between the outer wall and the inner wall.

[0009] In one embodiment of the invention, the rotor body comprises a first rotor body and a second rotor body, which are separated from each other and coaxially attached to the central shaft, wherein the first rotor body forms an outer wall on its circumferential side, wherein the outer diameter of the second rotor body is smaller than the inner diameter of the outer wall, wherein several first magnets are arranged on the outer wall, and wherein several second magnets are arranged on the circumferential side of the second rotor body; and wherein several first electromagnets are arranged on the outside of the stator body and several second electromagnets are arranged on the inside of the stator body, and wherein the stator body is located between the first rotor body and the second rotor body.

[0010] Preferably, the surfaces of the first and second magnets facing the electromagnets are inclined surfaces, and the surfaces of the first and second electromagnets facing the inclined surfaces are flat surfaces. As the rotor rotates relative to the stator, the first and second magnets gradually approach the electromagnets, so that at the closest distance to the first and second magnets, the electromagnets repel them to set the rotor body in rotation.

[0011] In one embodiment of the invention, the rotor body comprises a first rotor body and a second rotor body, which are separate from each other and arranged coaxially over the opposite sides of the stator body in the axial direction of the center shaft, wherein several first magnets and several second magnets are arranged in the first rotor body and the second rotor body, wherein, when the electromagnets are energized, they generate electromagnetic forces of opposite polarity on the two opposite sides in the axial direction, wherein the first magnets and the second magnets have a repulsive force for the two opposite sides of the electromagnets.

[0012] The electromagnets are arranged in a ring shape at different diameter positions on the stator body, wherein the first magnets are arranged in a ring shape at different diameter positions and face one side of the electromagnets, and wherein the second magnets are arranged in a ring shape at different diameter positions and face the other side of the electromagnets. Brief description of the drawings Fig. 1 a sectional view of the first embodiment of the invention, Fig. 2 a sectional view along line II-II according to Fig. 1, Fig. 3 an enlarged representation of zone A according to Fig. 2, Fig. 4 a representation according to Fig. 3, wherein the electromagnets move the magnets, causing the rotor to rotate, Fig. 5 a representation according to Fig. 1, wherein the first and second magnets of the rotor body are not opposite the electromagnets, Fig. 6 a representation of the second embodiment of the invention, Fig. 7 a representation of the third embodiment of the invention, Fig. 8 a sectional view of the rotor according to Fig. 7. Ways to implement the invention

[0013] Terms such as "first" and "second" mentioned in the description are used to distinguish components of the same or similar type and do not serve to restrict the relationship between components such as order, size, etc. Design 1

[0014] As in Fig. 1 and Fig. As shown in Figure 2, the copolar vector drive motor of the invention comprises a power supply control unit 10, a stator 20, and a rotor 30. The stator 20 has a circular stator body 201 and several electromagnets 202 arranged at equal angles along the circumferential side of the stator body 201. The stator body 201 is fixedly mounted to the housing 50 and is penetrated by the central shaft 40. A bearing is provided between the central shaft 40 and the stator body 201, allowing the central shaft 40 to rotate freely relative to the stator body 201. The central shaft 40 is also mounted to the housing 50 by the bearing, allowing it to rotate freely around the housing 50. However, the stator body 201 is fixedly mounted and therefore cannot rotate. The electromagnets 202 are electrically connected to the power supply control unit 10.Under the control of the power supply control unit 10, the electromagnets 202 are intermittently supplied with direct current, causing them to generate magnetic force. Specifically, the electromagnets 202 are arranged on the stator 20 such that the power supply control unit 10 supplies the electromagnets 202 with direct current, thereby causing them to generate magnetic forces of opposite polarity on two opposite sides in the radial direction of the stator body.

[0015] More precisely, the electromagnets 202 can contain several first electromagnets 202A and second electromagnets 202B. A projecting wall 2011 can be formed on one side of the stator body 20. The first electromagnets 202A are distributed at equal angles on the outer circumferential side of the projecting wall 2011, and the second electromagnets 202B are distributed at equal angles on the inner circumferential side of the projecting wall 2011. The first electromagnets 202A and the second electromagnets 202B are connected to the power supply control unit 10 via wires. The wires can be electrically connected to the first electromagnets 202A and the second electromagnets 202B through channels formed in the stator body 201 (not shown).

[0016] The rotor 30 has a circular rotor body 301. Several first magnets 302A are arranged at equal angles on the radially outer side of the rotor body 301. Several second magnets 302B are arranged at equal angles on the radially inner side of the rotor body 301. The first magnets 302A and the second magnets 302B have the same magnetic polarity as the electromagnetic forces generated by the electromagnets 202. That is, the first magnets 302A each have a magnetic force that repels the electromagnetic force generated by the first electromagnets 202A. The second magnets 302B each have a magnetic force that repels the electromagnetic force generated by the second electromagnets 202B. More precisely, the rotor body 301 forms an outer wall 3011 and an inner wall 3012 in the radial direction. The first magnets 302A are arranged on the outer wall 3011.The second magnets 302B are arranged on the inner wall 3012. The rotor body 301 is attached to the central shaft 40, allowing the rotor body 301 to rotate the central shaft 40. Furthermore, the rotor body 30 and the stator body 20 are arranged coaxially around the central shaft 40. After assembly, the projecting wall 2011 is located between the outer wall 3011 and the inner wall 3012. Simultaneously, the path of rotation of the first magnets 302A passes over the virtual circumferential positions of the first electromagnets 202A. The path of rotation of the second magnets 302B passes over the virtual circumferential positions of the second electromagnets 202B.

[0017] As in Fig. As shown in Figure 3, in the preferred embodiment of the present invention, the facing surfaces of the first electromagnet 202A and the first magnet 302A form a flat surface 2021A and an inclined surface 3021A. The first point P1 and the second point P2 at opposite ends of the flat surface 2021A have the same height. The third point P3 and the fourth point P4 at opposite ends of the inclined surface 3021A have different heights. That is, when the flat surface 2021A and the inclined surface 3021A are opposite each other, the distance between the first point P1 and the third point P3 is smaller than the distance between the second point P2 and the fourth point P4. As shown in Figure 3, the flat surface 2021A and the inclined surface 3021A are opposite each other. Fig. As shown in Figure 4, when the rotor body 301 rotates clockwise and the first magnet 302A moves past the first electromagnet 202A, the distance between the inclined surface 3021A and the first point P1 of the flat surface 2021A gradually decreases in the direction from the fourth point P4 to the third point P3, so that the first magnet 302A can move to the position of the first electromagnet 202A by a relatively small repulsive force. When the distance between the third point P3 of the inclined surface 3021A and the first point P1 of the flat surface 2021A is at its smallest, the electromagnetic force generated by the first electromagnet 202A is sufficient to repel the first magnet 302A and rotate it clockwise. Fig. 4), so that the rotor body 301 rotates continuously. Likewise, the facing surfaces of the second electromagnet 202B and the second magnet 302B also form a flat surface and an inclined surface as mentioned above. The effect is the same as described above, and a repeated description is omitted here.

[0018] The following describes the operation of the common-pole vector drive motor of the present invention: The power supply control unit 10 of the present invention intermittently supplies each electromagnet 202 with a direct current to cause the rotor body 301 to rotate. More precisely, as in Fig. As shown in Figure 5, when the rotor body 301 rotates with the central shaft 40 relative to the stator body 201, the power supply control unit 10 supplies the direct current to the first electromagnets 202A and the second electromagnets 202B by means of a preset computer program, only when each first magnet 302A reaches the position of a first electromagnet 202A and each second magnet 302B reaches the position of a second electromagnet 202B, whereby the first electromagnet 202A and the second electromagnet 202B each generate an electromagnetic force which has the same magnetic polarity as the first magnet 302A and the second magnets 302B respectively, in order to continuously rotate the rotor by means of the magnetic repulsion force.When the rotor body 301 rotates relative to the stator body 201, and the first magnets 302A leave the first electromagnets 202A and the second magnets 302B leave the second electromagnets 202B, the power supply control unit 10 interrupts the power supply to the first electromagnets 202A and the second electromagnets 202B via the preset computer program, thus preventing them from generating a magnetic force. The rotor body 301 continues to rotate due to inertia until the first magnets 302A and the second magnets 302B return to their positions. Then the power supply control unit 10 again supplies the direct current to the first electromagnets 202A and the second electromagnets 202B via the preset computer program, so that they each generate a magnetic force to continuously rotate the rotor body 301 through the magnetic repulsion force.

[0019] In the aforementioned common-polarity vector drive motor of the present invention, the power supply control unit 10 intermittently supplies the direct current. This allows for a reduction of approximately half the power consumption. The first electromagnets 202A and the second electromagnets 202B jointly repel the first magnets 302A and the second magnets 302B to set the rotor body 301 in rotation, enabling the central shaft 40 to achieve twice the torque output. Design 2

[0020] Fig. Figure 6 shows the second embodiment of the same-pole vector drive motor of the present invention. The rotor body comprises a first rotor body 301A and a second rotor body 301B, which are separate from each other and coaxially mounted on the central shaft 40. The first rotor body 301A forms an outer wall 3011A on its circumferential side. The outer diameter of the second rotor body 301B is smaller than the inner diameter of the outer wall 3011A. Several first magnets 302A are arranged on the outer wall 3011A. Several second magnets 302B are arranged on the circumferential side of the second rotor body 301B. Several first electromagnets 202A are arranged on the outside of the stator body 201, and several second electromagnets 202B are arranged on the inside of the stator body 201. The stator body 201 is attached to the housing 50 and is located between the first rotor body 301A and the second rotor body 301B.The rotational track of the first magnets 302A runs over the virtual circumferential positions of the first electromagnets 202A.

[0021] The rotational track of the second magnets 302B runs over the virtual circumferential positions of the second electromagnets 202B.

[0022] Likewise, the power supply control unit 10 intermittently supplies the electromagnets with a direct current to set the rotor body 301A in rotation. That is, when the first rotor body 301A and the second rotor body 301B rotate with the central shaft 40 relative to the stator body 201, the power supply control unit 10, via a preset computer program, supplies the direct current to the first electromagnets 202A and the second electromagnets 202B only when each first magnet 302A reaches the position of a first electromagnet 202A and each second magnet 302B reaches the position of a second electromagnet 202B, thereby causing the first electromagnet 202A and the second electromagnet 202B to each generate an electromagnetic force that is connected to the first magnet 302A and the second electromagnet 202B, respectively.The second magnet 302B has the same magnetic polarity in order to cause the first rotor body 301A and the second rotor body 301B to rotate synchronously and continuously by means of the magnetic repulsion force. When the first rotor body 301A and the second rotor body 301B rotate relative to the stator body 201, and the first magnets 302A leave the first electromagnets 202A and the second magnets 302B leave the second electromagnets 202B, the power supply control unit 10 interrupts the power supply to the first electromagnets 202A and the second electromagnets 202B via the preset computer program, thus preventing them from generating a magnetic force. The first rotor body 301A and the second rotor body 301B continue to rotate due to rotational inertia until the first magnets 302A and the second magnets 302B reach the positions of the first electromagnets 202A and the second electromagnets 202B again.Then the power supply control unit 10 again supplies the direct current to the first electromagnets 202A and the second electromagnets 202B via the preset computer program, so that they each generate a magnetic force to continuously rotate the first rotor body 301A and the second rotor body 301B through the magnetic repulsion force. embodiment 3

[0023] Fig. 7 and Fig.Figure 8 shows the third embodiment of the same-pole vector drive motor of the present invention. The rotor body comprises a first rotor body 301C and a second rotor body 301D, which are separate from each other and arranged coaxially over opposite sides of the stator body 201 in the axial direction of the central shaft 40. Several first magnets 302A and second magnets 302B, which are distributed in a ring shape, are arranged at different diameter positions on the first rotor body 301C and the second rotor body 301D. The first electromagnets 202A and the second electromagnets 202B are arranged in a ring shape at different diameter positions of the stator body 201, so that the first magnets 302A, which are located in the first rotor body 301C and in the second rotor body 301D, are opposite the two sides of the first electromagnets 202A and the second magnets 302B are opposite the two sides of the second electromagnets 202B.Furthermore, the medium shaft 40 is also provided with a conductive rotor 60. Several conductive sections 61 are arranged at equal intervals on the circumferential surface of the conductive rotor 60. An insulating section 62 is located between adjacent conductive sections 61. The angle between adjacent conductive sections 61 is equal to the angle between adjacent first magnets 302A or the angle between adjacent second magnets 302B. The conductive section 61 is electrically connected to the first electromagnets 202A and the second electromagnets 202B via wires. The power supply control unit 10 is connected to a power cable. The power cable is provided with a conductive rod. The conductive rod contacts the circumferential surface of the conductive rotor 60.

[0024] In the third embodiment, when the first rotor body 301C and the second rotor body 301D rotate with the central shaft 40, the conductive rotor 60 also rotates synchronously. When the first magnets 302A and the second magnets 203B of the first rotor body 301C and the second rotor body 301D are opposite the first electromagnets 202A and the second electromagnets 202B, the conductive rod also contacts the conductive section 61 of the conductive rotor 60. This causes the power supply control unit 10 to supply direct current through the conductive section to the first electromagnets 202A and the second electromagnets 202B, so that the first electromagnets 202A and the second electromagnets 202B generate electromagnetic forces of opposite polarity on their two opposite sides in the axial direction.The first magnets 302A and the second magnets 302B exhibit magnetic forces that repel the opposite sides of the first electromagnets 202A and the second electromagnets 202B, causing the first rotor body 301C and the second rotor body 301D to rotate, so that the central shaft 40 delivers a torque.

Claims

[1] Common-pole vector drive motor comprising a power supply control unit (10); a stator (20) comprising a stator body (201) and several electromagnets (202) arranged at equal angles along the circumferential side of the stator body (201), wherein the stator body (201) is arranged to be rotationally fixed and is movably penetrated by a central shaft (40), wherein the electromagnets (202) are electrically connected to the power supply control unit (10); and a rotor (30) comprising a rotor body (301) and several magnets at equal angles along the circumferential side, wherein the rotor body (301) is attached to the central shaft (40); wherein, when the rotor body (301) rotates with the central shaft (40) relative to the stator body (201), the power supply control unit (10) supplies a direct current to the electromagnets (202), only when the magnets reach the positions of the electromagnets (202), whereby the first electromagnets (202) each generate an electromagnetic force which has the same magnetic polarity as the magnets in order to continuously rotate the rotor by means of the magnetic repulsion force, and wherein, when the rotor body (301) rotates relative to the stator body (201) and the magnets leave the electromagnets (202), the power supply control unit (10) interrupts the power supply to the electromagnets (202), which thus do not generate a magnetic force, whereby the rotor body (301) continues to rotate due to rotational inertia until the magnets again reach the positions of the electromagnets (202), whereby the power supply control unit (10) again supplies the direct current to the electromagnets (202) so that they each generate a magnetic force in order to continuously rotate the rotor body (301) by means of the magnetic repulsion force. [2] Same-pole vector drive motor according to claim 1, characterized by, that when the electromagnets (202) are supplied with current, the electromagnets (202) generate magnetic forces of opposite polarity on two opposite sides in the radial direction of the stator body; and several first magnets (302A) are arranged on the radially outer side of the rotor body (301) and several second magnets (302B) are arranged on the radially inner side of the rotor body (301), wherein the first magnets (302A) and the second magnets (302B) have a magnetic repulsion force for the electromagnets (202). [3] Same-pole vector drive motor according to claim 2, characterized by, that the rotor body (301) forms an outer wall (3011) and an inner wall (3012) in the radial direction, wherein the first magnets (302A) are arranged on the outer wall (3011) and the second magnets (302B) are arranged on the inner wall (3012); and a projecting wall (2011) is formed on one side of the stator body (20), wherein the first electromagnets (202A) are arranged on the outer circumferential side of the projecting wall (2011) and the second electromagnets (202B) are arranged on the inner circumferential side of the projecting wall (2011). [4] Same-pole vector drive motor according to claim 2, characterized by, that the rotor body (301) comprises a first rotor body (301A) and a second rotor body (301B) which are separated from each other and coaxially attached to the central shaft (40), wherein the first rotor body (301A) forms an outer wall (3011A) on its circumferential side, wherein the outer diameter of the second rotor body (301B) is smaller than the inner diameter of the outer wall (3011A), wherein several first magnets (302A) are arranged on the outer wall (3011A), and wherein several second magnets (302B) are arranged on the circumferential side of the second rotor body (301B); and several first electromagnets (202A) are arranged on the outside of the stator body (201) and several second electromagnets (202B) are arranged on the inside of the stator body (201), and wherein the stator body (201) is located between the first rotor body (301A) and the second rotor body (301B). [5] Same-pole vector drive motor according to claim 3 or 4, characterized by, that the surfaces of the first magnets (302A) and the second magnets (302B) facing the electromagnets (202) are inclined surfaces (2021A), and the surfaces of the first electromagnets (202A) and the second electromagnets (202B) facing the inclined surfaces (2021A) are flat surfaces. [6] Same-pole vector drive motor according to claim 1, characterized by , that the rotor body comprises a first rotor body (301C) and a second rotor body (301D) which are separate from each other and arranged coaxially over the opposite sides of the stator body (201) in the axial direction of the center shaft (40), wherein several first magnets (302A) and several second magnets (302B) are arranged in the first rotor body and the second rotor body, wherein, when the electromagnets (202) are supplied with current, they generate electromagnetic forces of different polarity on the two opposite sides in the axial direction, wherein the electromagnets (202) are arranged in a ring shape in different diameter positions of the stator body (201), wherein the first magnets (302A) are arranged in a ring shape in different diameter positions and are facing one side of the electromagnets (202), and wherein the second magnets (302B) are arranged in a ring shape in different diameter positions and are facing the other side of the electromagnets (202).

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