A hybrid flux composite structure disc motor

Abstract

This invention discloses a hybrid flux composite structure disc motor, comprising a front stator assembly, a middle stator assembly, and a rotor assembly. The rotor assembly includes a magnetically conductive rotor support, a front-end permanent magnet, and a middle permanent magnet. Both the front-end permanent magnet and the middle permanent magnet are mounted on the magnetically conductive rotor support, with the middle permanent magnet surrounding the front-end permanent magnet. The front stator assembly and the front-end permanent magnet are arranged face-to-face. The middle permanent magnet is placed in a stator slot of the middle stator assembly, and the sidewall of the middle permanent magnet is at a predetermined distance from the sidewall of the stator slot. This invention discloses a hybrid flux composite structure disc motor, in which closed magnetic field loops are formed between the front stator assembly and the front-end permanent magnet, and between the middle permanent magnet and the middle stator assembly, respectively, improving energy conversion efficiency and thus improving the energy conversion capacity to the volume-to-weight ratio of the disc motor.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a disc motor with a hybrid magnetic flux composite structure. Background Technology

[0002] Currently, disc motors have low energy conversion efficiency, and the ratio of converted energy to volume and weight is also relatively low.

[0003] Therefore, how to improve the energy conversion efficiency of disc motors and increase the ratio of conversion capacity to volume and weight is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a disc motor with a hybrid flux composite structure, which can improve the energy conversion efficiency of the disc motor and improve the ratio of conversion capacity to volume and weight.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A hybrid flux composite structure disc motor includes a front stator assembly, a middle stator assembly, and a rotor assembly;

[0007] The rotor assembly includes a magnetically conductive rotor support, a front-end permanent magnet, and an intermediate permanent magnet. Both the front-end permanent magnet and the intermediate permanent magnet are mounted on the magnetically conductive rotor support, and the intermediate permanent magnet is arranged around the front-end permanent magnet.

[0008] The front stator assembly is positioned face-to-face with the front end permanent magnet;

[0009] The intermediate permanent magnet is placed in the stator slot of the intermediate stator assembly, and the sidewall of the intermediate permanent magnet is at a preset distance from the sidewall of the stator slot.

[0010] In one specific implementation, the hybrid flux composite structure disc motor further includes a rear stator assembly;

[0011] The rotor assembly also includes a rear end face permanent magnet, which is mounted on the magnetic rotor support and is arranged back-to-back with the front end face permanent magnet.

[0012] The rear stator assembly is positioned face-to-face with the rear end permanent magnet.

[0013] In another specific embodiment, the magnetic rotor support includes a first support disk and a second support disk arranged coaxially;

[0014] The first support plate is disposed on the first end face of the second support plate, and the first support plate is provided with a front end face permanent magnet fixing groove in the circumferential direction for mounting the front end face permanent magnet.

[0015] The second support plate has a circumferential groove for mounting the intermediate permanent magnet.

[0016] In another specific embodiment, the magnetic rotor support further includes a third support disk coaxially disposed with the second support disk;

[0017] The third support plate is disposed on the second end face of the second support plate, and the third support plate has a circumferential groove for mounting the rear end permanent magnet.

[0018] In another specific embodiment, the rotor assembly further includes a front-end permanent magnet fastening ring;

[0019] The front end permanent magnet fastening ring is sleeved on the first support plate to limit the front end permanent magnet;

[0020] and / or

[0021] The rotor assembly also includes an intermediate permanent magnet fastening ring;

[0022] The second support plate is fitted around the intermediate permanent magnet fastening ring to limit the position of the intermediate permanent magnet.

[0023] and / or

[0024] The rotor assembly also includes a rear end face permanent magnet fastening ring;

[0025] The rear end permanent magnet fastening ring is sleeved on the third support plate to limit the rear end permanent magnet.

[0026] In another specific embodiment, the front stator assembly includes a front stator core and a front stator winding;

[0027] The front stator core is provided with a front winding mounting slot, and the front stator winding is wound in the front winding mounting slot;

[0028] and / or

[0029] The intermediate stator assembly includes an intermediate stator core and an intermediate stator winding;

[0030] The stator slot of the intermediate stator core includes an intermediate winding mounting slot, and the intermediate stator winding is wound in the intermediate winding mounting slot.

[0031] and / or

[0032] The rear stator assembly includes a rear stator core and a rear stator winding;

[0033] The rear stator core is provided with a rear winding mounting slot, and the rear stator winding is wound in the rear winding mounting slot.

[0034] In another specific implementation, there are multiple intermediate stator cores, which are arranged around the permanent magnet at the front end face;

[0035] The stator slot of the intermediate stator core also includes a receiving slot, the bottom of the receiving slot is connected to the top of the intermediate winding mounting slot, the intermediate permanent magnet is placed in the receiving slot, and the side wall of the intermediate permanent magnet is at a preset distance from the side wall of the receiving slot.

[0036] In another specific implementation, an anti-detachment limiting platform is provided at the connection between the top of the intermediate winding mounting slot and the bottom of the receiving slot;

[0037] The anti-detachment limiting platform limits the intermediate stator winding.

[0038] In another specific embodiment, the width of the intermediate stator core gradually decreases along the direction from the bottom to the top of the receiving groove;

[0039] The width direction of the intermediate stator core refers to the direction in which the intermediate stator core is perpendicular to the intermediate stator winding.

[0040] In another specific implementation, the front stator core is made of electrical steel sheets wound together or magnetic metal powder pressed together;

[0041] and / or

[0042] The intermediate stator core is made of electrical steel sheets or pressed magnetic metal powder.

[0043] and / or

[0044] The rear stator core is made of electrical steel sheets wound together or magnetic metal powder pressed together.

[0045] and / or

[0046] The magnetic rotor support is made of electrical steel sheet or pressed magnetic metal powder.

[0047] and / or

[0048] The coil cross-section of the intermediate stator winding is rectangular;

[0049] and / or

[0050] The cross-section of the front stator winding is triangular;

[0051] and / or

[0052] The cross-section of the rear stator winding is triangular;

[0053] and / or

[0054] The outer wall of the front end permanent magnet fastening ring is flush with or lower than the bottom of the middle permanent magnet fixing groove;

[0055] and / or

[0056] The outer wall of the rear end permanent magnet fastening ring is flush with or lower than the bottom of the middle permanent magnet fixing groove;

[0057] and / or

[0058] The number of permanent magnet fixing slots on the front end, the middle end, and the rear end are all equal.

[0059] The various embodiments of the present invention can be combined arbitrarily as needed, and the resulting embodiments are also within the scope of the present invention and are part of the specific implementation of the present invention.

[0060] In one specific embodiment of the present invention, the present invention discloses a disc motor with a hybrid magnetic flux composite structure, wherein closed magnetic field loops are formed between the front stator assembly and the front end permanent magnet and between the middle permanent magnet and the middle stator assembly, respectively, which improves the energy conversion efficiency and thus improves the ratio of energy conversion capability to volume and weight of the disc motor. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0062] Figure 1 A schematic diagram of the assembly structure of the hybrid flux composite structure disc motor provided by the present invention;

[0063] Figure 2 This is a schematic diagram of the rotor assembly provided by the present invention;

[0064] Figure 3 This is a schematic diagram of the structure of one of the coils in the intermediate stator winding provided by the present invention;

[0065] Figure 4 A schematic diagram of the structure of one of the coils in the front stator winding provided by the present invention;

[0066] Figure 5 This is a schematic diagram of the structure of the front stator core provided by the present invention;

[0067] Figure 6 This is a schematic diagram of the structure of the intermediate stator core provided by the present invention;

[0068] Figure 7 This is a schematic diagram of the arrangement of permanent magnets on the front end face provided by the present invention;

[0069] Figure 8 This is a schematic diagram of the rotor support provided by the present invention.

[0070] in, Figure 1-8 middle:

[0071] A hybrid flux composite structure disc motor 1000, comprising: a front stator assembly 100, a middle stator assembly 200, a rotor assembly 300, a magnetic rotor support 30, a front end permanent magnet 31, a middle permanent magnet 32, a stator slot 20, a rear stator assembly 400, a rear end permanent magnet 33, a first support disc 30a, a second support disc 30b, a front end permanent magnet fixing slot 34, a middle permanent magnet fixing through slot 35, and a third support disc 30. c. Rear end permanent magnet fixing groove 36, front end permanent magnet fastening ring 37, middle permanent magnet fastening ring 38, rear end permanent magnet fastening ring 39, front stator core 10, front stator winding 11, front winding mounting groove 12, middle stator core 21, middle stator winding 22, rear stator core 40, rear stator winding 41, rear winding mounting groove 42, middle winding mounting groove 20a, receiving groove 20b, anti-detachment limiting platform 23. Detailed Implementation

[0072] To enable those skilled in the art to better understand the technical solution of the present invention, the following description is provided in conjunction with the appendix. Figure 1-8 The present invention will be further described in detail below with reference to specific embodiments.

[0073] Example 1

[0074] like Figure 1 As shown, the present invention provides a hybrid flux composite structure disc motor 1000, wherein the hybrid flux composite structure disc motor 1000 includes a front stator assembly 100, an intermediate stator assembly 200 and a rotor assembly 300.

[0075] like Figure 2As shown, the rotor assembly 300 includes a magnetic rotor support 30, a front-end permanent magnet 31, and an intermediate permanent magnet 32. Both the front-end permanent magnet 31 and the intermediate permanent magnet 32 ​​are mounted on the magnetic rotor support 30, with the intermediate permanent magnet 32 ​​surrounding the front-end permanent magnet 31. Specifically, there are multiple front-end permanent magnets 31 and intermediate permanent magnets 32, and they are evenly distributed on the magnetic rotor support 30 along different circumferential radii. The distribution radius of the intermediate permanent magnets 32 is larger than that of the front-end permanent magnets 31, meaning the intermediate permanent magnets 32 are distributed around the front-end permanent magnets 31.

[0076] The front stator assembly 100 and the front end permanent magnet 31 are arranged face to face, that is, the front stator core 10 of the front stator assembly 100 is arranged facing the front end permanent magnet 31, so that the front stator core 10 of the front stator assembly 100 and the front end permanent magnet 31 can form a closed magnetic field circuit.

[0077] The intermediate permanent magnet 32 ​​is placed in the stator slot 20 of the intermediate stator assembly 200. Specifically, the stator slot 20 of the intermediate stator assembly 200 is a through slot. When the magnetic rotor support 30 rotates, it drives the intermediate permanent magnet 32 ​​to pass through one stator slot 20 and then into the next stator slot 20. The side wall of the intermediate permanent magnet 32 ​​is separated from the side wall of the stator slot 20 by a preset distance to avoid the intermediate permanent magnet 32 ​​colliding with the side wall of the stator slot 20 when it rotates with the magnetic rotor support 30. The preset distance refers to the sufficiently small air gap generated when the intermediate permanent magnet 32 ​​and the intermediate stator core 21 of the intermediate stator assembly 200 coincide during the rotation process, so that the intermediate permanent magnet 32 ​​and the intermediate stator core 21 form a short magnetic circuit. When the intermediate permanent magnet 32 ​​and the intermediate stator core 21 are misaligned, the air gap is large enough so that the intermediate permanent magnet 32 ​​and the intermediate stator core 21 cannot form a magnetic field loop. There is no attraction between the intermediate permanent magnet 32 ​​and the intermediate stator assembly 200, so as to realize the continuous rotation of the hybrid magnetic flux composite structure disc motor 1000.

[0078] In this invention, closed magnetic field loops are formed between the front stator assembly 100 and the front end permanent magnet 31, and between the intermediate permanent magnet 32 ​​and the intermediate stator assembly 200. Compared to the existing disc motor which only forms one magnetic field loop, the two magnetic field loops in this invention improve energy conversion efficiency. Furthermore, the intermediate permanent magnet 32 ​​and the front end permanent magnet 31 share a single magnetic rotor support 30, which improves the energy conversion capability relative to the volume and weight ratio of the disc motor.

[0079] It should be noted that the hybrid flux composite structure disc motor 1000 may include a rear stator assembly 400, an intermediate stator assembly 200 and a rotor assembly 300, or a front stator assembly 100, a rear stator assembly 400 and a rotor assembly 300, or simultaneously include a front stator assembly 100, an intermediate stator assembly 200, a rear stator assembly 400 and a rotor assembly 300.

[0080] Example 2

[0081] In the second embodiment provided by the present invention, the hybrid flux composite structure disc motor 1000 in this embodiment has a similar structure to the hybrid flux composite structure disc motor 1000 in the first embodiment. The similarities will not be described again, and only the differences will be introduced.

[0082] In this embodiment, the present invention specifically discloses that the hybrid flux composite structure disc motor 1000 further includes a rear stator assembly 400 and a rotor assembly 300 further includes a rear end face permanent magnet 33. The rear end face permanent magnet 33 is mounted on the magnetic rotor support 30 and is arranged back-to-back with the front end face permanent magnet 31. The rear stator assembly 400 and the rear end face permanent magnet 33 are arranged face-to-face, that is, the rear stator core 40 of the rear stator assembly 400 faces the rear end face permanent magnet 33.

[0083] Furthermore, the present invention discloses that the magnetic rotor support 30 includes a first support disk 30a and a second support disk 30b arranged coaxially, such as... Figure 8 As shown. The first support plate 30a is disposed on the first end face of the second support plate 30b. Specifically, the first support plate 30a and the second support plate 30b are integrally formed and connected.

[0084] The first support plate 30a has a front-side permanent magnet fixing groove 34 on its circumference, which is used to install the front-side permanent magnet 31. Specifically, the shape of the front-side permanent magnet fixing groove 34 matches the shape of the front-side permanent magnet 31.

[0085] The second support plate 30b has a circumferentially formed intermediate permanent magnet fixing slot 35, which is used to install intermediate permanent magnet 32. Specifically, the shape of the intermediate permanent magnet fixing slot 35 matches the shape of the intermediate permanent magnet 32.

[0086] Furthermore, the present invention discloses that the magnetic rotor support 30 also includes a third support disk 30c, the third support disk 30c and the second support disk 30b are coaxially arranged, the third support disk 30c is disposed on the second end face of the second support disk 30b, specifically, the third support disk 30c is integrally formed and connected with the first support disk 30a and the second support disk 30b.

[0087] The third support plate 30c has a rear end face permanent magnet fixing groove 36 on its circumference, which is used to install the rear end face permanent magnet 33. Specifically, the shape of the rear end face permanent magnet fixing groove 36 matches the shape of the rear end face permanent magnet 33.

[0088] It should be noted that the front end permanent magnet fixing groove 34 and the rear end permanent magnet fixing groove 36 can be closed grooves with both ends closed, or they can be grooves with at least one end closed.

[0089] Furthermore, the present invention discloses that the magnetic rotor support 30 is made of electrical steel sheet or pressed from magnetic metal powder.

[0090] Furthermore, the present invention discloses that the rotor assembly 300 further includes a front-end permanent magnet fastening ring 37, which is sleeved on the first support disk 30a and used to limit the front-end permanent magnet 31. Specifically, one end of the front-end permanent magnet fixing groove 34 is closed and the other end is open. One end of the front-end permanent magnet 31 abuts against the closed end of the front-end permanent magnet fixing groove 34, and the other end of the front-end permanent magnet 31 abuts against the front-end permanent magnet fastening ring 37. In this embodiment, the end of the front-end permanent magnet fixing groove 34 furthest from the intermediate permanent magnet fixing groove 35 is taken as the closed end.

[0091] Furthermore, this invention discloses that the outer wall of the front-end permanent magnet fastening ring 37 is flush with or lower than the bottom of the intermediate permanent magnet fixing slot 35, thus preventing the front-end permanent magnet fastening ring 37 from affecting the intermediate permanent magnet 32. It should be noted that "the outer wall of the front-end permanent magnet fastening ring 37 is lower than the bottom of the intermediate permanent magnet fixing slot 35" means that along the radial direction of the magnetic rotor support 30, the outer wall of the front-end permanent magnet fastening ring 37 is lower than the bottom of the intermediate permanent magnet fixing slot 35. In this embodiment, the outer wall of the front-end permanent magnet fastening ring 37 is flush with the bottom of the intermediate permanent magnet fixing slot 35 as an example, which improves the appearance and allows for the installation of a larger front-end permanent magnet 31 within a smaller magnetic rotor support 30 size.

[0092] Furthermore, the present invention discloses that the rotor assembly 300 further includes an intermediate permanent magnet fastening ring 38, and the intermediate permanent magnet fastening ring 38 is fitted with a second support disk 30b for limiting the intermediate permanent magnet 32. Specifically, one end of the intermediate permanent magnet 32 ​​abuts against the bottom of the intermediate permanent magnet fixing slot 35, and the other end of the intermediate permanent magnet 32 ​​abuts against the intermediate permanent magnet fastening ring 38.

[0093] Furthermore, the present invention discloses that the rotor assembly 300 also includes a rear end permanent magnet fastening ring 39, which is sleeved on the third support disk 30c and used to limit the rear end permanent magnet 33. Specifically, one end of the rear end permanent magnet fixing groove 36 is closed and the other end is open. One end of the rear end permanent magnet 33 abuts against the closed end of the rear end permanent magnet fixing groove 36, and the other end of the rear end permanent magnet 33 abuts against the rear end permanent magnet fastening ring 39. In this embodiment, the end of the rear end permanent magnet fixing groove 36 furthest from the intermediate permanent magnet fixing groove 35 is taken as the closed end.

[0094] Furthermore, this invention discloses that the outer wall of the rear end permanent magnet fastening ring 39 is flush with or lower than the bottom of the intermediate permanent magnet fixing slot 35, thus preventing the rear end permanent magnet fastening ring 39 from affecting the intermediate permanent magnet 32. It should be noted that "the outer wall of the rear end permanent magnet fastening ring 39 is lower than the bottom of the intermediate permanent magnet fixing slot 35" means that along the radial direction of the magnetic rotor support 30, the outer wall of the rear end permanent magnet fastening ring 39 is lower than the bottom of the intermediate permanent magnet fixing slot 35. In this embodiment, the outer wall of the rear end permanent magnet fastening ring 39 is flush with the bottom of the intermediate permanent magnet fixing slot 35 as an example, which improves the appearance and allows for the installation of a larger rear end permanent magnet 33 within a smaller magnetic rotor support 30 size.

[0095] Furthermore, the present invention discloses that the number of the front end permanent magnet fixing groove 34, the middle permanent magnet fixing through groove 35, and the rear end permanent magnet fixing groove 36 are all equal, and the projections of the front end permanent magnet fixing groove 34 and the rear end permanent magnet fixing groove 36 onto the second support plate 30b coincide, and the symmetry line of the middle permanent magnet fixing through groove 35 and the front end permanent magnet fixing groove 34 coincides, which facilitates processing and manufacturing.

[0096] Furthermore, the present invention discloses a front stator assembly 100 comprising a front stator core 10 and a front stator winding 11. A front stator mounting slot 12 is formed on the front stator core 10, and the front stator winding 11 is wound within the front stator mounting slot 12. An external alternating current is passed through the front stator winding 11. The magnetic field generated by the alternating current passes through the magnetic path of the front stator core 10 and through the air between the front stator core 10 and the front end permanent magnet 31. After merging with the magnetic field of one of the front end permanent magnets 31, it flows into the other front end permanent magnet 31 through the magnetic guidance of the magnetic rotor support 30, and then returns to the front stator core 10 through the air again, forming a closed loop.

[0097] Furthermore, the present invention discloses that the cross-section of the front stator winding 11 is triangular, as shown in the figure. Figure 4As shown. It should be noted that the cross-section of the front stator winding 11 can also be circular or rectangular, etc. The front stator winding 11 is made of a high conductivity material such as aluminum or copper, and is wound into a rectangle, triangle or circle, etc., according to a certain shape, and finally assembled into the stator slot 20 of the front stator core 10.

[0098] Furthermore, the present invention discloses a rear stator assembly 400 comprising a rear stator core 40 and a rear stator winding 41. A rear stator mounting slot 42 is provided on the rear stator core 40, and the rear stator winding 41 is wound within the rear stator mounting slot 42. An external alternating current is introduced into the rear stator winding 41. The magnetic field generated by the alternating current passes through the magnetic path of the rear stator core 40 and through the air between the rear stator core 40 and the rear end face permanent magnet 33. After merging with the magnetic field of one of the rear end face permanent magnets 33, it flows into the other rear end face permanent magnet 33 through the magnetic guidance of the magnetic rotor support 30, and then returns to the rear stator core 40 through the air again, forming a closed loop.

[0099] Furthermore, the present invention discloses that the coil cross-section of the rear stator winding 41 is triangular. It should be noted that the coil cross-section of the rear stator winding 41 can also be circular or rectangular, etc. The rear stator winding 41 is made of a high conductivity material such as aluminum or copper, and is wound into a rectangular, triangular or circular shape according to a certain shape, and finally assembled into the stator slot 20 of the rear stator core 40.

[0100] Furthermore, the present invention discloses that the intermediate stator assembly 200 includes an intermediate stator core 21 and an intermediate stator winding 22, the stator slot 20 of the intermediate stator core 21 includes an intermediate winding mounting slot 20a, and the intermediate stator winding 22 is wound in the intermediate winding mounting slot 20a.

[0101] Furthermore, the present invention discloses that the coil cross-section of the intermediate stator winding 22 is rectangular, such as... Figure 3 As shown. It should be noted that the cross-section of the intermediate stator winding 22 can also be circular or triangular, etc. The intermediate stator winding 22 is made of high conductivity materials such as aluminum or copper, and is wound into a rectangle, triangle or circle, etc., according to a certain shape, and finally assembled into the stator slot 20 of the intermediate stator core 21.

[0102] Furthermore, this invention discloses that there are multiple intermediate stator cores 21, which are arranged around the permanent magnet 31 on the front end face. The stator slots 20 of the intermediate stator cores 21 also include receiving slots 20b. The bottom of the receiving slot 20b is connected to the top of the intermediate winding mounting slot 20a. The intermediate permanent magnet 32 ​​is placed in the receiving slot 20b, and the sidewall of the intermediate permanent magnet 32 ​​is at a predetermined distance from the sidewall of the receiving slot 20b. An external alternating current is passed through the intermediate stator winding 22. The magnetic field generated by the alternating current passes through one end of the intermediate stator core 21 and through the air between the intermediate stator core 21 and the intermediate permanent magnet 32, enters the intermediate permanent magnet 32, and finally reaches the other end of the intermediate stator core 21, thereby forming a closed loop.

[0103] Furthermore, the present invention discloses that an anti-detachment limiting platform 23 is provided at the connection between the top of the intermediate winding mounting slot 20a and the bottom of the receiving slot 20b, and the anti-detachment limiting platform 23 limits the intermediate stator winding 22.

[0104] Furthermore, this invention discloses that the width of the intermediate stator core 21 gradually decreases along the direction from the bottom to the top of the receiving slot 20b. On the one hand, this reduces the overall weight of the intermediate stator core 21; on the other hand, it reduces the space occupied by the intermediate stator core 21, avoiding interference with other components. It should be noted that the width direction of the intermediate stator core 21 refers to the direction in which the intermediate stator core 21 is perpendicular to the intermediate stator winding 22.

[0105] Furthermore, this invention discloses that the front stator core 10 is made of electrical steel sheets wound together or magnetic metal powder pressed together. The front stator core 10 is a hollow ring, and a certain number of stator slots 20 are radially formed on the end face of the front stator core 10 for mounting the front stator winding 11. The number of stator slots 20 is an integer multiple of three, such as... Figure 5 As shown.

[0106] Furthermore, this invention discloses that the intermediate stator core 21 is made of electrical steel sheet or pressed from magnetic metal powder. The overall shape of the intermediate stator core 21 is C-shaped, and each intermediate stator core 21 is equipped with one intermediate stator winding 22. The number of intermediate stator cores 21 is an integer multiple of three, such as... Figure 6 As shown.

[0107] Furthermore, the present invention discloses that the rear stator core 40 is made of electrical steel sheets wound together or magnetic metal powder pressed together, and the front and rear stator cores 40 have the same structure and are symmetrically installed.

[0108] In this invention, the front-end permanent magnet 31, the rear-end permanent magnet 33, and the middle permanent magnet 32 ​​are all mounted on the magnetic rotor support 30. Alternating current is supplied to each stator assembly to drive the rotor assembly 300 to rotate, thus realizing the conversion of electrical energy into mechanical energy. When external mechanical forces act on the rotor assembly 300, causing it to rotate, electrical energy will be generated in each stator assembly, thus achieving the conversion of mechanical energy into electrical energy.

[0109] This invention integrates three energy flow paths within a limited volume space, thereby improving the energy conversion efficiency per unit volume.

[0110] It should be noted that the words indicating direction in this article, such as up, down, left, right, etc., refer only to the position of the structure shown in the corresponding figure, and are only for the convenience of description, and do not have any other specific meaning.

[0111] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0112] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A hybrid flux composite structure disc machine, characterized by, The motor comprises a front stator assembly, an intermediate stator assembly and a rotor assembly; The rotor assembly comprises a magnetically conductive rotor support, a front end surface permanent magnet and an intermediate permanent magnet, the front end surface permanent magnet and the intermediate permanent magnet are both mounted on the magnetically conductive rotor support, and the intermediate permanent magnet is arranged around the front end surface permanent magnet; The front stator assembly is arranged face to face with the front end surface permanent magnet; The intermediate permanent magnet is arranged in a stator slot of the intermediate stator assembly; The magnetically conductive rotor support comprises a first support disc and a second support disc arranged coaxially; The first support disc is arranged on a first end surface of the second support disc, and a front end surface permanent magnet fixing groove for mounting the front end surface permanent magnet is arranged on the circumferential surface of the first support disc; A intermediate permanent magnet fixing through groove for mounting the intermediate permanent magnet is arranged on the circumferential surface of the second support disc; The rotor assembly further comprises a front end surface permanent magnet fastening ring; The front end surface permanent magnet fastening ring is sleeved on the first support disc and used for limiting the front end surface permanent magnet; The rotor assembly further comprises an intermediate permanent magnet fastening ring; The intermediate permanent magnet fastening ring is sleeved on the second support disc and used for limiting the intermediate permanent magnet; The stator slot of the intermediate stator assembly is a through groove, when the magnetically conductive rotor support rotates, the intermediate permanent magnet is driven to pass out of one stator slot and then enter another stator slot; the sidewall of the intermediate permanent magnet is spaced apart from the sidewall of the stator slot by a preset distance, so as to avoid the intermediate permanent magnet from colliding with the sidewall of the stator slot when the magnetically conductive rotor support rotates.

2. The hybrid flux composite structure disc electric machine of claim 1, wherein, The motor further comprises a rear stator assembly; The rotor assembly further comprises a rear end surface permanent magnet, the rear end surface permanent magnet is mounted on the magnetically conductive rotor support and arranged back to back with the front end surface permanent magnet; The rear stator assembly is arranged face to face with the rear end surface permanent magnet.

3. The hybrid flux composite structure disc electric machine of claim 1, wherein, The magnetically conductive rotor support further comprises a third support disc arranged coaxially with the second support disc; The third support disc is arranged on a second end surface of the second support disc, and a rear end surface permanent magnet fixing groove for mounting the rear end surface permanent magnet is arranged on the circumferential surface of the third support disc.

4. The hybrid flux composite structure disc electric machine of claim 3, wherein, The rotor assembly further comprises a rear end surface permanent magnet fastening ring; The rear end surface permanent magnet fastening ring is sleeved on the third support disc and used for limiting the rear end surface permanent magnet.

5. The hybrid flux composite structure disc electric machine according to any one of claims 2-4, characterized in that, The front stator assembly comprises a front stator core and a front stator winding; A front winding mounting groove is arranged on the front stator core, and the front stator winding is wound in the front winding mounting groove.

6. The hybrid flux composite structure disc electric machine according to any one of claims 2-4, characterized in that, The rear stator assembly comprises a rear stator core and a rear stator winding; A rear winding mounting groove is arranged on the rear stator core, and the rear stator winding is wound in the rear winding mounting groove.

7. The hybrid flux composite structure disc electric machine according to any one of claims 2-4, characterized in that The intermediate stator assembly comprises an intermediate stator core and an intermediate stator winding; The stator slot of the intermediate stator core comprises an intermediate winding mounting groove, and the intermediate stator winding is wound in the intermediate winding mounting groove.

8. The hybrid flux composite structure disc electric machine of claim 7, wherein, The number of the intermediate stator cores is multiple, and the intermediate stator cores are arranged around the front end surface permanent magnet; The stator slot of the intermediate stator core further comprises a receiving groove, the groove bottom of the receiving groove is communicated with the groove top of the intermediate winding mounting groove, the intermediate permanent magnet is arranged in the receiving groove, and the sidewall of the intermediate permanent magnet is spaced apart from the sidewall of the receiving groove by a preset distance.

9. The hybrid flux composite structure disc electric machine of claim 8, wherein, A anti-falling limiting platform is arranged at the connection between the groove top of the intermediate winding mounting groove and the groove bottom of the receiving groove; The anti-falling limiting platform limits the intermediate stator winding.

10. The hybrid flux composite structure disc electric machine of claim 8, wherein, The width of the intermediate stator core gradually decreases along the direction from the groove bottom to the groove top of the receiving groove; The width direction of the intermediate stator core refers to the direction perpendicular to the intermediate stator winding.

11. The hybrid flux composite structure disc electric machine of claim 5, wherein, The front stator core is made of electrical steel sheets or magnetic metal powder.

12. The hybrid flux composite structure disc electric machine of claim 7, wherein, The intermediate stator core is made of electrical steel sheets or magnetic metal powder.

13. The hybrid flux composite structure disc electric machine of claim 6, wherein, The rear stator core is made of electrical steel sheets or magnetic metal powder.

14. The hybrid flux composite structure disc electric machine of claim 5, wherein, The magnetic conductive rotor support is made of electrical steel sheets or magnetic metal powder.

15. The hybrid flux composite structure disc electric machine of claim 7, wherein, The cross section of the coil of the intermediate stator winding is rectangular.

16. The hybrid flux composite structure disc electric machine of claim 5, wherein, The cross section of the coil of the front stator winding is triangular.

17. The hybrid flux composite structure disc electric machine of claim 6, wherein, The cross section of the coil of the rear stator winding is triangular.

18. The hybrid flux composite structure disc electric machine of claim 5, wherein, The outer wall of the front end surface permanent magnet fastening ring is flush with or lower than the groove bottom of the intermediate permanent magnet fixing through groove.

19. The hybrid flux composite structure disc electric machine of claim 4, wherein, The outer wall of the rear end surface permanent magnet fastening ring is flush with or lower than the groove bottom of the intermediate permanent magnet fixing through groove.

20. The hybrid flux composite structure disc electric machine of claim 3, wherein, The number of the front end surface permanent magnet fixing grooves, the intermediate permanent magnet fixing through grooves and the rear end surface permanent magnet fixing grooves is equal.

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