Matrix motor unit structure and matrix motor

Abstract

The application relates to the motor technical field, and provides a matrix motor unit structure and a matrix motor, the matrix motor unit comprises at least two motor elements, the motor elements are connected in an array form in the same plane and enclose a motor main structure, so that the central axis of the torque output shaft of each motor element is symmetrical about the geometric center of the motor main structure. The matrix motor unit structure provided by the application is capable of independently working, the motor elements are connected in an array form in the same plane to form the motor main structure, and the contour of the motor main structure is symmetrical. In this way, the motor elements of the matrix motor unit structure are arranged in the same plane and are more compact, and the structures of the motor elements can be shared, so that the overall volume and weight can be further reduced, and higher output torque can be obtained.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a matrix motor unit and a matrix motor having the structure of the matrix motor unit. Background Technology

[0002] An electric motor consists of a stator and a rotor. The stator has stator slots, and the windings are wound around the stator slots. By passing current through the windings of the stator, the stator generates a rotating magnetic field vector. The rotating magnetic field attracts the rotor to rotate, and ultimately, the motor outputs torque.

[0003] One of the most important performance indicators of a motor is its torque density, which is equal to the ratio of the motor's torque to its volume, or the ratio of its torque to its weight. Therefore, increasing torque density can increase the motor's output torque. Common methods include adding permanent magnets to the rotor, increasing the number of rotor poles, or increasing the current flowing through the windings. However, the limited space in the stator slots, the upper limit on the permeability of the stator and rotor, and the fact that excessive current can burn out the stator limit the potential for increasing motor torque density.

[0004] In other implementations, two or more motors are connected by a transmission mechanism to increase the total output torque of the motors. However, this also increases the overall size and weight of the motor system. Summary of the Invention

[0005] The purpose of this application is to provide a matrix motor unit structure that aims to solve the problem of limited output torque enhancement in existing motors.

[0006] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0007] In a first aspect, embodiments of this application provide a matrix motor unit structure, including at least two motor elements, each of which is connected in an array in the same plane and encloses a motor body structure, such that the central axis of the torque output shaft of each motor element is symmetrical about the geometric center of the motor body structure.

[0008] The beneficial effects of the embodiments of this application: The matrix motor unit structure provided in this application includes two or more motor elements. Here, the motor elements are capable of independent operation. The motor elements are connected in an array on the same plane to form a main motor structure. This main motor structure has a geometric center, meaning its outer contour is symmetrical. Thus, the central axis of the torque output shaft of each motor element is symmetrical about the geometric center of the main motor structure. Alternatively, when the central axis of the torque output shaft of one motor element coincides with the geometric center of the main motor structure, the central axes of the torque output shafts of the remaining motor elements are symmetrical about the geometric center of the main motor structure. In this way, the motor elements of the matrix motor unit structure of this application are on the same plane and arranged more compactly. Furthermore, the motor elements can share structural features, thereby further reducing the overall volume and weight. Moreover, connecting the torque output shafts of the motor elements through a transmission structure achieves higher output torque.

[0009] In one embodiment, the main structure of the motor includes a dedicated stator yoke, dedicated stator teeth disposed on the dedicated stator yoke, a dedicated winding wound on the dedicated stator teeth, a common stator yoke, common stator teeth disposed on the common stator yoke, a common winding wound on the common stator teeth, and a plurality of rotors corresponding to the dedicated stator teeth and / or the common stator teeth. The dedicated stator yoke, the dedicated stator teeth, and the dedicated winding are magnetically coupled to other motor elements, and the common stator yoke, the common stator teeth, and the common winding are magnetically coupled to at least one of the motor elements.

[0010] In one embodiment, the main structure of the motor further includes a compensation winding, which is disposed on the common stator teeth and / or the common stator yoke.

[0011] In one embodiment, the main structure of the motor further includes a compensation winding, which is disposed on the dedicated stator teeth and / or the dedicated stator yoke.

[0012] In one embodiment, the internal spaces of each motor element are independent, and the common stator yoke includes a first yoke formed by splicing two adjacent independent stator yokes.

[0013] In one embodiment, the internal space enclosed by the stators of each of the motor elements is interconnected, and the common stator yoke includes a second yoke for enabling the stator yoke portions of each of the motor elements to be shared.

[0014] In one embodiment, the common stator yoke further includes a third yoke portion disposed between the rotors of two adjacent motor elements and not connected to the stator of the motor element, and the opposite ends of the third yoke portion are respectively provided with the common stator teeth facing the rotor of the corresponding motor element.

[0015] In one embodiment, the motor body structure further includes a magnetic adjustment bridge, the two opposite ends of which are respectively connected to the two third yokes;

[0016] Alternatively, the opposite ends of the magnetic bridge are respectively connected to one of the second yokes and one of the third yokes.

[0017] In one embodiment, the common stator yoke further includes a fourth yoke portion disposed between the rotors of adjacent motor elements and not connected to the stator of the motor element. The fourth yoke portion has two first sub-segments opposite to the rotors of the two adjacent motor elements and a second sub-segment opposite to the rotor of the motor element at the center position. The two first sub-segments are respectively connected to the opposite ends of the second sub-segment.

[0018] In one embodiment, the motor body structure further includes a magnetic adjustment block, which surrounds the rotor of the motor element at the center position and corresponds to the second sub-segment.

[0019] Secondly, embodiments of this application also provide a matrix motor, including the matrix motor unit structure described above.

[0020] The beneficial effects of the embodiments of this application are as follows: The matrix motor provided by this application, based on the above-mentioned matrix motor unit structure, can obtain a higher upper limit of output torque. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 1 of the present invention;

[0023] Figure 2 for Figure 1 The second motor element B-phase winding coupling vector synthesis diagram of the matrix motor unit structure;

[0024] Figure 3This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 2 of the present invention;

[0025] Figure 4 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 3 of the present invention;

[0026] Figure 5 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 4 of the present invention;

[0027] Figure 6 This is a schematic diagram of the matrix motor unit structure provided in Embodiment 5 of the present invention;

[0028] Figure 7 This is a front view of the matrix motor unit structure provided in Embodiment Six of the present invention;

[0029] Figure 8 This is a front view of the matrix motor unit structure provided in Embodiment 7 of the present invention;

[0030] Figure 9 This is a front view of the matrix motor unit structure provided in Embodiment 8 of the present invention;

[0031] Figure 10 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 9 of the present invention;

[0032] Figure 11 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 10 of the present invention;

[0033] Figure 12 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment Eleven of the present invention;

[0034] Figure 13 This is a front view of the matrix motor unit structure provided in Embodiment Twelve of the present invention;

[0035] Figure 14 This is a front view of the matrix motor unit structure provided in Embodiment Thirteen of the present invention;

[0036] Figure 15 This is a front view of the matrix motor unit structure provided in Embodiment Fourteen of the present invention;

[0037] Figure 16 This is a front view of the matrix motor unit structure provided in Embodiment 15 of the present invention;

[0038] Figure 17 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment Sixteen of the present invention;

[0039] Figure 18 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment Seventeen of the present invention;

[0040] Figure 19 This is a cross-sectional view of the matrix motor unit structure provided in Embodiment 18 of the present invention.

[0041] The following are the labeling elements in the figure:

[0042] 100. Matrix motor unit structure; 10. Main motor structure; 10a. Motor element; 11. Dedicated stator yoke; 12. Dedicated stator teeth; 13. Dedicated winding; 14. Shared stator yoke; 15. Shared stator teeth; 16. Shared winding; 17. Rotor; 21. Compensating winding; 22. Compensating winding; 141. First yoke; 142. Second yoke; 143. Third yoke; 30. Adjusting bridge; 144. Fourth yoke; 14a. First segment; 14b. Second segment; 40. Adjusting block; 18. Shared permanent magnet; 19. Dedicated permanent magnet. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Please refer to Figure 1 , Figures 3 to 6 In a first aspect, the matrix motor unit structure 100 provided in this application includes at least two motor elements 10a. Each motor element 10a is connected in an array within the same plane and encloses a main motor structure 10, such that the central axis of the torque output shaft of each motor element 10a is symmetrical about the geometric center of the main motor structure 10. Understandably, the outer contour of the main motor structure 10 is symmetrical, ensuring that the overall structure experiences symmetrical force when each motor element 10a outputs torque, thus achieving stable output. The geometric center of the main motor structure 10 can be the center of a circle, the center of gravity, or the intersection of its diagonals. Based on the above, the motor elements 10a are connected in an array within the same plane. This connection can be a fixed connection, such as welding or integral molding, or a detachable connection, such as threaded connection, snap-fit, or plug-in connection. When connecting, each motor element 10a can share some structural components, so that the overall volume of the main motor structure 10 can be smaller and the overall weight can be lighter, thereby obtaining a higher torque density and thus a higher upper limit of output torque.

[0048] Of course, this also includes the following situation: among the motor elements 10a in the same plane, the central axis of the torque output shaft of one motor element 10a coincides with the geometric center of the motor body structure 10. In this way, except for the central axis of the torque output shaft of that motor element 10a, the central axes of the torque output shafts of the other motor elements 10a are symmetrical about the geometric center of the motor body structure 10.

[0049] For example, such as Figure 1 As shown, in the same plane, the outer hub of the motor element 10a is a regular hexagon. The stator sides of two regular hexagonal motor elements 10a are connected, that is, arranged in a parallel array. In this way, the outer contour of the motor body structure 10 formed by the combination is a regular hexagon, and the geometric center of the motor body structure 10 is the center of the regular hexagon.

[0050] For example, such as Figure 3As shown, in the same setting plane, the outer hub of the motor element 10a is an equilateral triangle. The stator sides of the six regular hexagonal motor elements 10a are connected together, that is, arranged in a ring array. In this way, the outer contour of the motor main body structure 10 formed by the combination is a decagon, and the geometric center of the motor main body structure 10 is the center of the decagon.

[0051] For example, such as Figure 4 As shown, within the same plane, the outer contour of the motor element 10a is an equilateral triangle. The stator sides of the four equilateral triangle motor elements 10a are connected sequentially, that is, arranged in an array of alternating side-by-side. Thus, the outer contour of the motor body structure 10 formed by the combination is a parallelogram, and the geometric center of the motor body structure 10 is located at the intersection of the diagonals of the parallelogram.

[0052] For example, such as Figure 5 As shown, within the same plane, the outer hub of the motor element 10a is a regular hexagon. The stator sides of the six motor elements 10a are connected together, that is, arranged in a circular array. The outer contour of the motor main body structure 10 formed by the combination is an octagon. The central axis of the torque output shaft of the remaining motor element 10a is located at the center of the octagon.

[0053] For example, such as Figure 6 As shown, a matrix motor unit structure 100 can be composed of two or more motor body structures 10. As shown in the figure, the matrix motor unit structure 100 is formed by stacking three motor body structures 10. The stacking direction is perpendicular to the arrangement direction of each motor body structure 10. Then, an output shaft is set at the geometric center of each motor body structure 10, and the output shafts are connected.

[0054] The matrix motor unit structure 100 provided in this application includes two or more motor elements 10a. Here, the motor elements 10a are capable of independent operation. The motor elements 10a are connected in an array on the same plane to form a motor main body structure 10. This motor main body structure 10 has a geometric center; that is, the outer contour of the motor main body structure 10 is symmetrical. Thus, the central axis of the torque output shaft of each motor element 10a is symmetrical about the geometric center of the motor main body structure 10. Alternatively, when the central axis of the torque output shaft of one motor element 10a coincides with the geometric center of the motor main body structure 10, then the central axes of the torque output shafts of the remaining motor elements 10a are symmetrical about the geometric center of the motor main body structure. In this way, the motor elements 10a of the matrix motor unit structure 100 of this application are on the same plane and arranged more compactly. Furthermore, the motor elements 10a can share structural features, thereby further reducing the overall volume and weight. Then, the torque output shafts of each motor element 10a are connected through a transmission structure to obtain higher output torque.

[0055] Please refer to Figure 7 and Figure 8 The motor element 10a itself includes a stator part and a rotor part. However, when each motor element 10a is assembled into a corresponding motor body structure 10 on the same plane, the stator parts of adjacent motor elements 10a may be used independently or jointly. Hereinafter, the stator parts used independently and the stator parts used jointly are defined as follows:

[0056] The main structure 10 of the motor includes a dedicated stator yoke 11, dedicated stator teeth 12, dedicated winding 13, a shared stator yoke 14, shared stator teeth 15, a shared winding 16, and several rotors 17. Here, the number of rotors 17 corresponds to the number of motor elements 10a. The dedicated stator yoke 11, dedicated stator teeth 12, and dedicated winding 13 are magnetically coupled to other motor elements 10a. Furthermore, the shared stator yoke 14, shared stator teeth 15, and shared winding 16 are magnetically coupled to at least one motor element 10a. Magnetic coupling occurs when two adjacent motor elements 10a are energized, resulting in magnetic field superposition on their corresponding windings or stator teeth. Magnetic coupling typically occurs on the stator, with the rotors 17 having a smaller impact. Therefore, the type of rotor 1 can be adjusted according to usage requirements; for example, it can be a permanent magnet synchronous motor rotor, an induction motor rotor, or a brushless DC motor rotor. The dedicated stator tooth 12 is located on the dedicated stator yoke 11, and the dedicated winding 13 is wound on the dedicated stator tooth 12. The common stator tooth 15 is located on the common stator yoke 14, and the common winding 16 is wound on the common winding 16 on the common stator tooth 15.

[0057] For example, such as Figure 1As shown, when two six-slot, four-pole regular hexagonal motor elements 10a are joined together, their magnetic field at a certain instant is... Figure 1 The motor element 10a on the left is the first motor element, and the motor element 10a on the right is the second motor element. The B-phase and C-phase windings of the first motor element are coupled with the B-phase and C-phase windings of the second motor element. That is, the magnetic field generated by the C-phase winding of the first motor element enters the B-phase winding of the second motor element, and the magnetic field generated by the C-phase winding of the second motor element enters the B-phase winding of the first motor element. At this time, the B-phase and C-phase windings of the first and second motor elements each have not only their own magnetic field flowing through them, but also the magnetic field of the other. Therefore, the motor teeth with coupling are called common stator teeth 15, the windings with coupling are called common windings 16, and the motor yokes with coupling are called common stator yokes 14. On the other hand, the motor teeth without coupling, far from the coupling point of the two motor elements, are called dedicated stator teeth 12, dedicated windings without coupling are called dedicated windings 13, and dedicated stator yokes without coupling are called dedicated stator yokes 11.

[0058] For example, such as Figure 1 , Figure 2 As shown, when two six-slot, four-pole regular hexagonal motor elements 10a are joined together (in this case, it is assumed that the magnetic poles of the rotors 17 of both motor elements 10a coincide with the corresponding A phase, i.e., the rotors 17 are aligned), then, due to the corresponding magnetic circuit coupling between the motor elements 10a, the magnetic field flowing through the common stator teeth 15 and the common winding 16 will be enhanced or weakened. This will result in unequal magnetic fields between the common stator teeth 15 and the common winding 16 and between the individual stator teeth 12 and the individual winding 13 in the main motor structure 10, thereby affecting the torque fluctuation and magnetic pull imbalance of the entire main motor structure 10. Specifically, as... Figure 1 , 2 As shown, Figure 2 for Figure 1 Vector synthesis diagram of the coupled magnetic field of the common winding 16 in the two motor elements 10a. Figure 1The motor element 10a on the left is the first motor element, and the motor element 10a on the right is the second motor element. The magnetic field direction of the C-phase winding (i.e., common winding 16) of the first motor element is towards the outside of the first motor element, but at the same time towards the inside of the second motor element (i.e., the magnetic field of the C-phase winding of the first motor element flows into the B-phase winding (i.e., common winding 16) of the second motor element). This is opposite to the magnetic field direction of the C-phase winding of the second motor element towards the outside of the second motor element, that is, the current phase is 180° out of space. Furthermore, since the magnetic field of the B-phase winding of the second motor element leads the magnetic field of the C-phase winding by 120° in current phase, the magnetic field direction of the C-phase winding of the first motor element and the magnetic field direction of the B-phase winding of the second motor element are spatially out of phase by 120°-180°=-60°. That is, the spatial phase angle between the B-phase winding of the second motor element and the C-phase winding of the first motor element is less than 90°. Therefore, the magnetic circuit coupling phenomenon enhances the magnetic field flowing through the common winding 16 and the common stator tooth 15. If this angle is greater than 90°, it will weaken the magnetic field flowing through the common winding 16 and the common stator tooth 15.

[0059] To address the magnetic field imbalance between the common stator teeth 15, common winding 16, and individual stator teeth 12 and individual winding 13 in the main motor structure 10, this can be achieved by adding windings. Specifically, compensating windings can be added at the common stator teeth 15 and common stator yoke 14 of the main motor structure 10, or compensating windings can be added at the individual stator teeth 12 and individual stator yoke 11 of the main motor structure 10.

[0060] For details, please refer to Figure 8 In one embodiment, the motor body structure 10 further includes a compensation winding 21, which is disposed on the common stator teeth 15 and / or the common stator yoke 14. Understandably, a current of a certain amplitude and phase is passed through the compensation winding 21, such that the magnetic field generated by the compensation winding 21 can change the amplitude or phase of the magnetic field flowing through the common stator teeth 15 or the common stator yoke 14, thereby counteracting the effects of coupling.

[0061] Or, specifically, please refer to Figure 7 In another embodiment, the motor body structure 10 further includes a compensation winding 22, which is disposed on a dedicated stator tooth and / or a dedicated stator yoke 11. Understandably, a current of a certain amplitude and phase is passed through the compensation winding 22, such that the magnetic field generated by the compensation winding 22 can change the amplitude or phase of the magnetic field flowing through the dedicated stator tooth 12 or the dedicated stator yoke 11, thereby compensating for the effects of coupling.

[0062] Specifically, such as Figure 8As shown, in one embodiment, the internal spaces of each motor element 10a are independent of each other, that is, the internal spaces of each motor element 10a are not connected. In this case, the common stator yoke 14 includes a first yoke portion 141 formed by splicing two adjacent independent stator yokes 11. It can be understood that the first yoke portion 141 is formed by splicing the independent stator yokes 11.

[0063] For example, when two six-slot, four-pole regular hexagonal motor elements 10a are joined together, Figure 2 for Figure 1 The vector synthesis diagram of the coupled magnetic field of the common winding 16 in the two motor elements 10a is shown. The motor element 10a on the left is the first motor element, and the motor element 10a on the right is the second motor element. The component of the C-phase winding (common winding 16) of the first motor element in the direction perpendicular to the B-phase winding (common winding 16) of the second motor element cancels out the component of the C-phase winding of the second motor element in the direction perpendicular to the B-phase winding of the first motor element. Therefore, no magnetic field flows through the common stator yoke 14 where the two motor elements 10a intersect, or only a very small amount of magnetic field flows through it. Thus, removing the common stator yoke 14 of the two motor elements 10a further reduces the weight of the motor, and the torque density of the main motor structure 10 is further improved.

[0064] For details, please refer to Figure 9 In one embodiment, the internal space enclosed by the stators of each motor element 10a is interconnected; that is, the common stator portion of the motor elements 10a is removed, and their respective internal spaces are interconnected. Although a common portion is removed, structurally, the stator portion connecting two adjacent motor elements 10a can be referred to as the common stator yoke 14. In this case, the common stator yoke 14 includes a second yoke portion 142 for realizing the sharing of the stator yoke portions of each motor element 10a.

[0065] For example, such as Figure 9 As shown, when two six-slot, four-stage regular hexagonal motor elements 10a are spliced ​​together, after the common stator part is removed, the yoke used to connect the two motor elements 10a is the second yoke 142 of the common stator yoke 14.

[0066] Please refer to Figures 10 to 12 In one embodiment, to further reduce the weight of the connected motor elements 10a, the stator yoke 14 can be used for further weight reduction. For example, when six three-slot, two-stage equilateral triangular motor elements 10a are spliced ​​together, the outer contour of the motor body structure 10 can be modified from the original... Figure 3 The regular hexagon shown is changed to... Figure 10The circle shown. At the same time, the shape of the common stator yoke 14 inside the main structure 10 of the motor is modified to increase more hollow space and change the original shape of the common stator yoke 14. Under the condition of satisfying the magnetic circuit closure, the weight of the main structure 10 of the motor is further reduced. The extra internal space can also increase the number of winding turns, and its torque density is further improved.

[0067] For example, such as Figure 11 , 12 As shown, when six equilateral triangular motor elements 10a with three slots and two poles are spliced ​​together, the outer contour of the main body structure can also be modified, changing the original shape. Figure 11 The regular hexagon shown is changed to... Figure 12 The circle shown. At the same time, the shape of the common stator yoke 14 inside the main structure 10 of the motor is modified to increase more hollow space and change the original shape of the common stator yoke 14.

[0068] In summary, the central axis of the torque output shaft of each motor element 10a in the motor main body structure 10 in the above embodiments is symmetrical with respect to the geometric center of the motor main body structure 10.

[0069] For example, such as Figure 13 , 14 As shown in 15 and 16, in other embodiments, the central axis of the torque output shaft of one motor element 10a coincides with the geometric center of the current motor body structure 10, while the central axes of the torque output shafts of the other motor elements 10a are symmetrical with respect to the geometric center of the motor body structure 10.

[0070] For details, please refer to Figure 13 To further reduce the weight of the main motor structure 10, the stator of the motor element 10a located at the center can be removed. This means the internal space of the motor element 10a is connected to the spaces of the other motor elements 10a. Furthermore, to achieve magnetic circuit closure of the motor element 10a at the center, the common stator yoke 14 includes a third yoke portion 143 located between the rotors 17 of two adjacent motor elements 10a and not connected to the stator of the motor element 10a. The third yoke portion 143 has common stator teeth 15 facing the rotors 17 of the corresponding motor element 10a at its opposite ends. Here, the third yoke portion 143 can be independently installed, with additional support structures for support and restraint. It can also be replaced for easy maintenance later.

[0071] For example, such as Figure 13As shown, when six six-slot, four-level regular hexagonal motor elements 10a are joined together to form the main body of the motor body structure 10, and then a seventh motor element 10a is placed at the center of the motor body structure 10, the third yoke 143 enables a closed magnetic circuit to be formed between the rotor 17 of the central motor element 10a and the rotors 17 of the other motor elements 10a. Of course, as the internal space of the motor body structure 10 is gradually removed, the third yoke 143 can also be used to achieve a closed magnetic circuit between adjacent motor elements 10a that are not at the center.

[0072] While achieving magnetic circuit closure between each motor element 10a, a common stator tooth 15 and a common winding 16 can also be provided on the third yoke 143. Furthermore, the shape of the third yoke 143 can be adjusted according to the degree of commonality, such as... Figure 13 As shown, in this embodiment, the third yoke 143 is strip-shaped, and common stator teeth 15 and common windings 16 can be provided at its opposite ends.

[0073] Please refer to Figure 14 In one embodiment, the motor body structure 10 further includes a magnetic bridge 30, with its opposite ends connected to two third yokes 143. Here, the magnetic bridge 30 serves to enable communication between adjacent motor elements 10a in phase, thereby increasing the torque of the entire motor body structure 10. The magnetic bridge 30 is made of the same material as the third yokes 143.

[0074] For example, such as Figure 14 As shown, when six six-slot, four-stage regular hexagonal motor elements 10a are spliced ​​together to form the main body of the motor body structure 10, a seventh motor element 10a is placed at the center of the motor body structure 10. The third yoke 143 is used to form a closed magnetic circuit between the rotor 17 of the central motor element 10a and the rotors 17 of the other motor elements 10a. At the same time, the same phases between adjacent motor elements 10a can be connected by the magnetic bridge 30, thereby shortening the magnetic circuit and increasing the torque.

[0075] Or, such as Figure 14 As shown, the two opposite ends of the magnetic bridge 30 are respectively connected to one of the second yokes 142 and one of the third yokes 143.

[0076] Or, such as Figure 14 As shown, in the same motor body structure 10, the opposite ends of a portion of the magnetic adjustment bridge 30 are respectively connected to two third yokes 143, and the opposite ends of the remaining magnetic adjustment bridges 30 are respectively connected to one of the second yokes 142 and one of the third yokes 143.

[0077] Depending on actual usage requirements, within the same motor body structure 10, the number of poles and slots of each motor element 10a can be the same or different. Please refer to [reference needed]. Figure 15 In this embodiment, the number of poles and slots of each motor element 10a in the main motor structure 10 are different. Specifically, the common stator yoke 14 also includes a fourth yoke portion 144 disposed between the rotors 17 of adjacent motor elements 10a and not connected to the stator of the motor element 10a. The fourth yoke portion 144 has two first sub-segments 14a opposite to the rotors 17 of the two adjacent motor elements 10a and a second sub-segment 14b opposite to the rotor 17 of the motor element 10a at the center position. The two first sub-segments 14a are respectively connected to the opposite ends of the second sub-segment 14b. It can be understood that the second sub-segment 14b is key to adjusting the number of poles and slots of the motor element 10a at the center position, for example, by changing the length of the second sub-segment 14b, or by setting windings at the corresponding second sub-segment 14b.

[0078] For example, such as Figure 15 As shown, when six six-slot, four-pole regular hexagonal motor elements 10a are spliced ​​together to form the main body of the motor body structure 10, a seventh motor element 10a is placed at the center of the motor body structure 10. The fourth yoke 144 is used to form a closed magnetic circuit between the rotor 17 of the motor element 10a at the center and the rotors 17 of the other motor elements 10a. At the same time, by adjusting the length of the second sub-segment 14b in the fourth yoke 144, the number of poles and slots of the motor element 10a at the center can be adjusted.

[0079] Please refer to Figure 16 In this embodiment, the main motor structure 10 further includes a magnetic adjustment block 40, which surrounds the rotor 17 of the motor element 10a at the center position and corresponds to the second sub-segment 14b. Understandably, the magnetic adjustment block 40 can couple the magnetic field generated by the common winding 16 of the motor element 10a at the center position, thereby realizing the torque output of the motor element 10a at the center position; that is, the magnetic adjustment block 40 can replace the stator teeth and windings.

[0080] For example, such as Figure 16 As shown, six six-slot, four-pole regular hexagonal motor elements 10a are spliced ​​together to form the main body of the motor body structure 10. A seventh motor element 10a is then positioned at the center of the motor body structure 10. The fourth yoke 144 enables a closed magnetic circuit to be formed between the rotor 17 of the central motor element 10a and the rotors 17 of the other motor elements 10a. Simultaneously, the adjusting magnetic blocks 40 correspond to the second sub-segment 14b in the fourth yoke 144. The number of adjusting magnetic blocks 40 is half the sum of the number of poles of the outer ring motor elements 10a and the number of poles of the central motor element 10a.

[0081] Please refer to Figures 17 to 19 Secondly, the matrix motor provided in the embodiments of this application includes the matrix motor unit structure 100 described above.

[0082] The matrix motor provided in this application, based on the matrix motor unit structure 100 described above, can achieve a higher upper limit of output torque.

[0083] For example, such as Figure 17 As shown, the matrix motor can be a DC matrix motor, and similarly, the matrix motor unit structure 100 is a DC matrix motor unit structure.

[0084] For example, such as Figure 18 As shown, the matrix motor can be a two-pole DC matrix motor. Similarly, the matrix motor unit structure 100 is a two-pole DC matrix motor unit structure.

[0085] For example, such as Figure 19 As shown, the matrix motor can be a flux-switched DC matrix motor. Similarly, the matrix motor unit structure 100 is a flux-switched matrix motor unit structure. Furthermore, the flux-switched matrix motor unit structure 100 also includes a common permanent magnet 18 and a unique permanent magnet 19.

[0086] The above are merely preferred embodiments of the present invention and are 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 within the scope of protection of the present invention.

Claims

1. A matrix motor unit structure, characterized in that: It includes at least two motor elements, each of which is connected in an array in the same plane and encloses a motor body structure, such that the central axis of the torque output shaft of each motor element is symmetrical about the geometric center of the motor body structure; or, the central axis of the torque output shaft of one of the motor elements coincides with the geometric center of the motor body structure, and the central axes of the torque output shafts of the other motor elements are symmetrical about the geometric center of the motor body structure. In this case, the torque output shafts of adjacent motor elements rotate in the same direction; The main structure of the motor includes a dedicated stator yoke, dedicated stator teeth on the dedicated stator yoke, a dedicated winding wound on the dedicated stator teeth, a common stator yoke, common stator teeth on the common stator yoke, a common winding wound on the common stator teeth, and a plurality of rotors corresponding to the dedicated stator teeth and / or the common stator teeth. The dedicated stator yoke, the dedicated stator teeth, and the dedicated winding are magnetically coupled to other motor elements. The common stator yoke, the common stator teeth, and the common winding are magnetically coupled to at least one of the motor elements. The main structure of the motor also includes a compensation winding, which is disposed on the common stator teeth and / or the common stator yoke; and / or, The main structure of the motor also includes a compensation winding, which is located on the dedicated stator teeth and / or the dedicated stator yoke.

2. The matrix motor unit structure according to claim 1, characterized in that: The internal spaces of each motor element are independent, and the common stator yoke includes a first yoke formed by splicing two adjacent independent stator yokes.

3. The matrix motor unit structure according to claim 1, characterized in that: The internal spaces enclosed by the stators of each of the motor elements are interconnected, and the common stator yoke includes a second yoke for realizing the sharing of the stator yoke portions of each of the motor elements.

4. The matrix motor unit structure according to claim 3, characterized in that: The common stator yoke further includes a third yoke portion disposed between the rotors of two adjacent motor elements and not connected to the stator of the motor element. The opposite ends of the third yoke portion are respectively provided with the common stator teeth facing the rotor of the corresponding motor element.

5. The matrix motor unit structure according to claim 4, characterized in that: The main structure of the motor also includes a magnetic adjustment bridge, the two opposite ends of which are respectively connected to the two third yokes; Alternatively, the opposite ends of the magnetic bridge are respectively connected to one of the second yokes and one of the third yokes.

6. The matrix motor unit structure according to claim 3, characterized in that: The common stator yoke further includes a fourth yoke portion disposed between the rotors of adjacent motor elements and not connected to the stator of the motor element. The fourth yoke portion has two first sub-segments opposite to the rotors of the two adjacent motor elements and a second sub-segment opposite to the rotor of the motor element at the center position. The two first sub-segments are respectively connected to the opposite ends of the second sub-segment.

7. The matrix motor unit structure according to claim 6, characterized in that: The main structure of the motor also includes a magnetic adjustment block, which surrounds the rotor of the motor element at the center position and corresponds to the second sub-segment.

8. A matrix motor, characterized in that: Includes the matrix motor unit structure as described in any one of claims 1 to 7.

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