V-shaped outer rotor structure, motor assembly and generator device

Abstract

The utility model relates to the technical field of outer rotors, in particular to a V-shaped outer rotor structure, a motor assembly and a generator device, and the V-shaped outer rotor structure comprises an annular part, a plurality of rotor magnetism gathering iron cores and a plurality of rotor magnet yoke iron cores. One ends of the plurality of rotor magnetic gathering iron cores are mounted on the inner ring surface of the annular piece at equal intervals, and the other ends of the plurality of rotor magnetic gathering iron cores are annularly distributed to form an annular mounting hole; the rotor magnet yoke iron core is arranged between the two rotor magnetism gathering iron cores, V-shaped magnetic steel grooves are formed between the two sides of the rotor magnet yoke iron core and the two adjacent rotor magnetism gathering iron cores, magnetic assemblies are arranged in the V-shaped magnetic steel grooves, and the magnetic assemblies are installed on the groove walls of the V-shaped magnetic steel grooves in an attached mode; the magnetic assembly comprises two magnetic parts. According to the utility model, the fitting effect of the magnetic member with the rotor magnetism gathering iron core and the rotor magnet yoke iron core can be enhanced, no air gap exists, and the magnetism gathering capability and the demagnetization resistance capability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of outer rotors, in particular to a V-shaped outer rotor structure, a motor component and a generator device. Background Art

[0002] The outer rotor structure is a special motor structure in which the stator is located inside and the rotor is located outside. This structure allows the motor housing to rotate with the rotor, while the stator ring core in the middle is fixed. Compared with traditional inner rotor motors, outer rotor motors have some unique advantages and application scenarios. Outer rotor motors are widely used in various fields, such as industrial machinery, power tools, household appliances, etc. They can be used to drive equipment such as fans, pumps, compressors, and can also be used to achieve precise speed control and position control.

[0003] In order to ensure the normal operation and performance of the outer rotor structure motor, it is necessary to strictly control the fit between the magnetic parts and the magnetic steel slots during the design and manufacturing process to ensure that the gap between them is uniform and meets the design requirements.

[0004] Because the magnetic parts and the magnetic steel slots are not installed in a fit, the air gap will be uneven, and the air gap is the gap between the magnetic parts and the magnetic steel slots. When the air gap is uneven, it will increase the magnetic resistance and reduce the efficiency of magnetic field transmission, thus affecting the performance of the motor. Furthermore, the fit between the magnetic parts and the magnetic steel slots has a direct impact on the electromagnetic performance of the motor, which may lead to uneven magnetic field distribution, resulting in a decrease in the torque and efficiency of the motor. Utility Model Content

[0005] The purpose of the utility model is to provide a V-shaped outer rotor structure, a motor assembly and a generator device to solve one or more technical problems raised in the above background technology.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A V-shaped outer rotor structure comprises an annular member, a plurality of rotor magnetic cores and a plurality of rotor magnetic yoke cores;

[0008] One ends of a plurality of the rotor magnet cores are installed at equal intervals on the inner annular surface of the annular member, and the other ends of a plurality of the rotor magnet cores are distributed in an annular manner to form an annular mounting hole, and the annular mounting hole is used to accommodate the inner stator structure;

[0009] The rotor yoke core is arranged between the two rotor magnet cores, and a V-shaped magnetic steel groove is formed between the two sides of the rotor yoke core and the two adjacent rotor magnet cores, and a magnetic component is arranged in the V-shaped magnetic steel groove, and the magnetic component is fitted and installed on the groove wall of the V-shaped magnetic steel groove;

[0010] The magnetic assembly includes two magnetic members, the two magnetic members are arranged in a V shape and coupled to form a rotor magnetic pole of the V-shaped outer rotor structure, and the four magnetic members are coupled to form a rotor magnetic pair of the V-shaped outer rotor structure;

[0011] A rotor pole of the V-shaped outer rotor structure is an N pole or an S pole; a rotor magnetic pair of the V-shaped outer rotor structure includes an N pole and an S pole.

[0012] Preferably, the minimum spacing between adjacent V-shaped magnetic steel grooves is ≥2 mm.

[0013] Preferably, the rotor yoke core is fan-shaped, and the rotor yoke core comprises two magnetic part fitting edges and an annular part mounting edge, and the two magnetic part fitting edges are the groove walls of the V-shaped magnetic steel groove;

[0014] The range of the V-shaped angle a between the two mating edges of the magnetic parts is 5°≤V-shaped angle a≤30°.

[0015] Preferably, the rotor magnet core comprises an inverted triangle mounting portion, a fan-shaped connecting portion, and two positioning hook blocks connected to the bottom of the fan-shaped connecting portion.

[0016] The two side edges of the fan-shaped connecting portion are the groove walls of the V-shaped magnetic steel groove;

[0017] An inverted triangle mounting hole is formed on the inner ring surface of the annular member, and the inverted triangle mounting hole is used for mounting the inverted triangle mounting portion.

[0018] Preferably, the two positioning hook blocks and the fan-shaped connecting portion have two connections, one of which is an inwardly concave corner connection, and the other is an arc connection;

[0019] The shape of the corner connection is adapted to the shape of the magnetic member.

[0020] Preferably, when a plurality of the rotor magnetic cores are mounted on the inner annular surface of the annular member, a first gap H is formed between the positioning hook blocks of two adjacent rotor magnetic cores.

[0021] Preferably, the minimum spacing of the first interval H is ≥1 mm, and the length of the first interval H is ≤120% of the thickness of the magnetic member.

[0022] A motor assembly comprises a central rotating shaft, an inner stator structure and a V-shaped outer rotor structure as described above;

[0023] The central rotating shaft and the inner stator structure are installed in the annular mounting hole of the V-shaped outer rotor structure, the inner stator structure and the V-shaped outer rotor structure are sequentially sleeved on the outer circumference of the central rotating shaft, and the V-shaped outer rotor structure rotates relative to the stator structure;

[0024] The inner stator structure includes a stator ring core and a plurality of stator teeth extending radially outward from the stator ring core, wherein the plurality of stator teeth are circumferentially distributed around the axis of the stator ring core, stator windings are wound around the stator teeth, and the stator teeth are in contact with the rotor magnetic core of the V-shaped outer rotor structure.

[0025] A generator device comprises a first housing, a second housing and a motor assembly as described above;

[0026] The first shell and the second shell are respectively mounted on both sides of the motor assembly, and the two ends of the central shaft are respectively penetrated through the first shell and the second shell;

[0027] The annular mounting edge of the rotor yoke core is provided with a first semicircular mounting groove, the inner ring surface of the annular member is provided with a second semicircular mounting groove, and the first semicircular mounting groove and the second semicircular mounting groove correspond to each other to form a first circular mounting hole;

[0028] The first shell and the second shell are provided with a second circular mounting hole corresponding to the first circular mounting hole, and the first circular mounting hole and the second circular mounting hole are used for correspondingly passing fasteners.

[0029] A generator device comprises a first housing, a second housing and a motor assembly as described above;

[0030] The first shell and the second shell are respectively installed on two sides of the motor assembly, and two ends of the central rotating shaft are respectively penetrated through the first shell and the second shell;

[0031] A first circular mounting hole is formed on the annular member, the edge of the first circular mounting hole is protruding toward the inner annular surface of the annular member, and a first semicircular mounting groove adapted to the edge of the first circular mounting hole is formed on the mounting edge of the annular member of the rotor yoke core;

[0032] The first shell and the second shell are provided with a second circular mounting hole corresponding to the first circular mounting hole, and the first circular mounting hole and the second circular mounting hole are used for correspondingly passing fasteners.

[0033] One of the above technical solutions has the following beneficial effects:

[0034] A plurality of rotor magnetic cores and a plurality of rotor yoke cores are evenly distributed in the circumferential direction of the outer rotor, and a V-shaped magnetic steel groove is formed between the rotor yoke core and two adjacent rotor magnetic cores. Through the above arrangement, the magnetic component can be fitted and installed on the groove wall of the V-shaped magnetic steel groove, that is, the shape of the magnetic part is designed according to the shape of the V-shaped magnetic steel groove, which can enhance the fitting effect of the magnetic part with the rotor magnetic core and the rotor yoke core, and there is no air gap, thereby improving the magnetic gathering ability and anti-demagnetization ability.

[0035] Furthermore, a rotor pole of the V-shaped outer rotor structure includes an N pole and an S pole, a rotor magnetic counterpole of the V-shaped outer rotor structure includes an N pole and an S pole, and the two magnetic parts are arranged in a V shape and coupled into an N pole or an S pole, from which it is concluded that the number of magnetic parts is twice the number of rotor magnetic counterpole of the V-shaped outer rotor structure, and the number of magnetic parts is four times the number of rotor magnetic poles of the V-shaped outer rotor structure. Since the number of V-shaped magnetic steel slots is at least four, and the V-shaped magnetic steel slots are symmetrically designed, when the V-shaped outer rotor structure cooperates with the inner stator structure, not only is the magnetic field distribution between the V-shaped outer rotor structure and the inner stator structure uniform, but the force is also more balanced, which is conducive to the smooth rotation of the V-shaped outer rotor structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of a V-shaped outer rotor structure of the utility model;

[0037] Figure 2 This is a front schematic diagram of a V-shaped outer rotor structure of the utility model;

[0038] Figure 3 It is a structural schematic diagram of an embodiment of a ring member in a V-shaped outer rotor structure of the utility model;

[0039] Figure 4 It is a structural schematic diagram of another embodiment of a ring member in a V-shaped outer rotor structure of the utility model;

[0040] Figure 5 This is a schematic diagram of the structure of a rotor magnet core in a V-shaped outer rotor structure of the utility model;

[0041] Figure 6 It is a structural schematic diagram of a rotor yoke core in a V-shaped outer rotor structure of the utility model;

[0042] Figure 7 It is a structural schematic diagram of a motor assembly of the utility model;

[0043] Figure 8 It is an exploded schematic diagram of a motor assembly of the utility model;

[0044] Fig. 9 It is a structural schematic diagram of a generator device of the utility model;

[0045] Fig.10 It is an exploded schematic diagram of a generator device of the utility model;

[0046] In the accompanying drawings: annular part 1, inverted triangle mounting hole 11, second semicircular mounting groove 12, circular mounting groove 13, rotor magnetic core 2, inverted triangle mounting part 21, fan-shaped connecting part 22, positioning hook block 23, corner connection 231, arc connection 232, rotor magnetic yoke core 3, magnetic part fitting edge 31, annular part mounting edge 32, first semicircular mounting groove 320, V-shaped magnetic steel groove 4, magnetic assembly 5, magnetic part 50, central shaft 100, inner stator structure 200, stator ring core 201, stator convex teeth 202, V-shaped outer rotor structure 300, motor assembly 400, generator device 500, first shell 600, second shell 700, second circular mounting hole 800. DETAILED DESCRIPTION

[0047] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figure 1-6 As shown, a V-shaped outer rotor structure includes a ring member 1, a plurality of rotor magnetic cores 2 and a plurality of rotor yoke cores 3;

[0052] One ends of a plurality of the rotor magnet cores 2 are installed at equal intervals on the inner annular surface of the annular member 1, and the other ends of a plurality of the rotor magnet cores 2 are distributed in an annular manner to form an annular mounting hole, wherein the annular mounting hole is used to accommodate an inner stator structure (200);

[0053] The rotor yoke core 3 is arranged between the two rotor magnet cores 2, and a V-shaped magnetic steel groove 4 is formed between the two sides of the rotor yoke core 3 and the two adjacent rotor magnet cores 2. A magnetic component 5 is arranged in the V-shaped magnetic steel groove 4, and the magnetic component 5 is fitted and installed on the groove wall of the V-shaped magnetic steel groove 4;

[0054] The magnetic assembly 5 includes two magnetic members 50, the magnetic members 50 are ferrite, the two magnetic members 50 are arranged in a V shape and coupled to form a rotor magnetic pole of the V-shaped outer rotor structure 300, and the four magnetic members 50 are coupled to form a rotor magnetic pair of the V-shaped outer rotor structure 300;

[0055] A rotor magnetic pole of the V-shaped outer rotor structure 300 is an N magnetic pole or an S magnetic pole; a rotor magnetic pair of the V-shaped outer rotor structure 300 includes an N magnetic pole and an S magnetic pole.

[0056] It should be noted that the magnetic component is ferrite or other materials with magnetic properties.

[0057] A plurality of rotor magnetic cores 2 and a plurality of rotor yoke cores 3 are evenly distributed in the circumferential direction of the outer rotor, and a V-shaped magnetic steel groove 4 is formed between the rotor yoke core 3 and two adjacent rotor magnetic cores 2. Through the above arrangement, the magnetic component 5 can be fitted and installed on the groove wall of the V-shaped magnetic steel groove 4, that is, the shape of the magnetic part 50 is designed according to the shape of the V-shaped magnetic steel groove 4, which can enhance the fitting effect of the magnetic part 50 with the rotor magnetic core 2 and the rotor yoke core 3, and there is no air gap, thereby improving the magnetic gathering ability and anti-demagnetization ability.

[0058] Furthermore, a rotor pole of the V-shaped outer rotor structure 300 includes an N pole and an S pole, a rotor magnetic counterpole of the V-shaped outer rotor structure 300 includes an N pole and an S pole, and the two magnetic members 50 are arranged in a V shape and coupled to form an N pole or an S pole, so that it can be concluded that the number of the magnetic members 50 is twice the number of the rotor magnetic counterpole of the V-shaped outer rotor structure 300, and the number of the magnetic members 50 is four times the number of the rotor magnetic poles of the V-shaped outer rotor structure 300. Since the number of the V-shaped magnetic steel slots 4 is at least four, and the V-shaped magnetic steel slots 4 are symmetrically designed, when the V-shaped outer rotor structure 300 cooperates with the inner stator structure 200, not only is the magnetic field between the V-shaped outer rotor structure 300 and the inner stator structure 200 evenly distributed, but the force is also more balanced, which is conducive to the smooth rotation of the V-shaped outer rotor structure 300.

[0059] Further explanation, the minimum spacing between adjacent V-shaped magnetic steel slots 4 is ≥ 2 mm. Since the spacing between the V-shaped magnetic steel slots 4 is too small, magnetic flux interference between adjacent magnetic components 5 may occur. Such interference may affect the uniformity and stability of the magnetic field, thereby affecting the performance of the V-shaped outer rotor structure 300.

[0060] Further explanation, the rotor yoke core 3 is fan-shaped, and the rotor yoke core 3 includes two magnetic member fitting edges 31 and an annular member mounting edge 32, and the two magnetic member fitting edges 31 are the groove walls of the V-shaped magnetic steel groove 4;

[0061] The range of the V-shaped angle a between the two magnetic member bonding edges 31 is 5°≤V-shaped angle a≤30°.

[0062] Since the V-shaped angle range between the two magnetic parts fitting edges 31 is 5°≤V-shaped angle a≤30°, which is equivalent to the V-shaped angle range of the V-shaped magnetic steel groove 4 being 5°≤V-shaped angle a≤30°, the two magnetic parts 50 of the magnetic component 5 are arranged in a V-shape of 5°≤V-shaped angle a≤30°. Such a design can enhance the magnetic gathering effect of the two magnetic parts 50 of the magnetic component 5.

[0063] To further explain, the rotor magnet core 2 includes an inverted triangle mounting portion 21, a fan-shaped connecting portion 22, and two positioning hook blocks 23 connected to the bottom of the fan-shaped connecting portion 22.

[0064] The two side edges of the fan-shaped connecting portion 22 are the groove walls of the V-shaped magnetic steel groove 4;

[0065] An inverted triangle mounting hole 11 is formed on the inner ring surface of the annular member 1 , and the inverted triangle mounting hole 11 is used for mounting the inverted triangle mounting portion 21 .

[0066] The inverted triangle mounting portion 21 is installed as the supporting portion of the rotor magnet core 2 on the ring member 1. When the V-shaped outer rotor structure 300 is rotating, it is not only used to disperse and bear the weight and force from the fan-shaped connecting portion 22 and the two positioning hook blocks 23 connected to the bottom of the fan-shaped connecting portion 22, but also can reduce shaking or deformation, ensuring the performance and safety of the equipment during long-term use. Therefore, its solid triangular structure helps to increase the overall stability and strength of the rotor magnet core 2.

[0067] Further explanation, the two positioning hook blocks 23 and the fan-shaped connecting portion 22 have two connections, one of which is an inwardly concave corner connection 231, and the other is an arc connection 232;

[0068] The shape of the corner connection 231 matches the shape of the magnetic member 50 .

[0069] On the one hand, the inwardly recessed corner connection 231 can reduce stress concentration and deformation at the connection, thereby increasing the service life and durability of the connection component. On the other hand, it can enhance the fit between the magnetic component 50 and the rotor magnetic core 2, eliminate air gaps, and improve magnetic concentration and anti-demagnetization capabilities.

[0070] For further explanation, when a plurality of the rotor magnetic cores 2 are mounted on the inner surface of the annular member 1 , a first interval H is formed between the positioning hook blocks 23 of two adjacent rotor magnetic cores 2 .

[0071] To further explain, the minimum spacing of the first interval H is ≥1 mm, and the length of the first interval H is ≤120% of the thickness of the magnetic member 50 .

[0072] With the above settings, Figure 2 As shown, the first interval H can not only reduce the magnetic leakage of the magnetic member 50 and improve the magnetic flux density of the V-shaped outer rotor structure 300, thereby improving the torque of the motor assembly, but also reduce the weight of the V-shaped outer rotor structure 300 and improve the working efficiency of the motor assembly.

[0073] A motor assembly 400 includes a central rotating shaft 100, an inner stator structure 200, and a V-shaped outer rotor structure 300 as described above;

[0074] The central rotating shaft 100 and the inner stator structure 200 are installed in the annular mounting hole of the V-shaped outer rotor structure 300. The inner stator structure 200 and the V-shaped outer rotor structure 300 are sequentially sleeved on the outer circumference of the central rotating shaft 100, and the V-shaped outer rotor structure 300 rotates relative to the stator structure.

[0075] The inner stator structure 200 includes a stator ring core 201 and a plurality of stator teeth 202 extending radially outward from the stator ring core 201. The plurality of stator teeth 202 are circumferentially distributed around the axis of the stator ring core. Stator windings are wound around the stator teeth 202. The stator teeth 202 are in contact with the rotor magnetic core 2 of the V-shaped outer rotor structure 300.

[0076] In order to ensure the normal operation and performance of the outer rotor structure motor assembly, the inner stator structure 200 is abutted against the V-shaped outer rotor structure 300, so that the magnetic component 50 and the V-shaped magnetic steel slot 4 are installed in a close fit without an air gap, thereby improving the magnetic concentration ability and anti-demagnetization ability.

[0077] A generator device 500 includes a first housing 600, a second housing 700 and a motor assembly 400 as described above;

[0078] The first housing 600 and the second housing 700 are respectively mounted on both sides of the motor assembly, and both ends of the central shaft 100 are respectively provided through the first housing 600 and the second housing 700;

[0079] In one embodiment, the annular mounting edge 32 of the rotor yoke core 3 is provided with a first semicircular mounting groove 320, and the inner annular surface of the annular member 1 is provided with a second semicircular mounting groove 12, and the first semicircular mounting groove 320 and the second semicircular mounting groove 12 correspond to each other to form a first circular mounting hole;

[0080] In another embodiment, a first circular mounting hole 13 is formed on the annular member 1, the edge of the first circular mounting hole 13 is protruded toward the inner annular surface of the annular member 1, and a first semicircular mounting groove 320 adapted to the edge of the first circular mounting hole 13 is formed on the annular member mounting edge 32 of the rotor yoke core 3;

[0081] The first shell 600 and the second shell 700 are provided with second circular mounting holes 800 corresponding to the first circular mounting holes. The first circular mounting holes and the second circular mounting holes 800 are used for correspondingly passing fasteners.

[0082] With the above settings, Figure 3-4 As shown, not only the first housing 600 , the second housing 700 and the motor assembly can be fastened and installed by fasteners, i.e. screws, but also unnecessary material of the rotor yoke core 3 is reduced, thereby reducing the weight of the V-shaped outer rotor structure 300 .

[0083] Since the generator device is provided with the motor assembly, it has the beneficial effects of the motor assembly, which will not be described in detail here.

[0084] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A V-shaped outer rotor structure (300), characterized in that: It comprises a ring member (1), a plurality of rotor magnetic cores (2) and a plurality of rotor magnetic yoke cores (3); One ends of a plurality of the rotor magnet cores (2) are mounted at equal intervals on the inner annular surface of the annular member (1), and the other ends of a plurality of the rotor magnet cores (2) are distributed in an annular pattern to form an annular mounting hole, wherein the annular mounting hole is used to accommodate an inner stator structure (200); The rotor magnetic yoke core (3) is arranged between the two rotor magnetic cores (2); a V-shaped magnetic steel groove (4) is formed between the two sides of the rotor magnetic yoke core (3) and the two adjacent rotor magnetic cores (2); a magnetic component (5) is arranged in the V-shaped magnetic steel groove (4), and the magnetic component (5) is fitted on the groove wall of the V-shaped magnetic steel groove (4); The magnetic assembly (5) comprises two magnetic components (50), the two magnetic components (50) are arranged in a V-shape and coupled to form a rotor magnetic pole of the V-shaped outer rotor structure (300), and the four magnetic components (50) are coupled to form a rotor magnetic pair of the V-shaped outer rotor structure (300); A rotor magnetic pole of the V-shaped outer rotor structure (300) is an N magnetic pole or an S magnetic pole; and a rotor magnetic pair of the V-shaped outer rotor structure (300) includes an N magnetic pole and an S magnetic pole.

2. The V-shaped outer rotor structure (300) according to claim 1, characterized in that: The minimum spacing between adjacent V-shaped magnetic steel grooves (4) is ≥ 2 mm.

3. The V-shaped outer rotor structure (300) according to claim 1, characterized in that: The rotor yoke core (3) is fan-shaped, and comprises two magnetic component fitting edges (31) and an annular component mounting edge (32), wherein the two magnetic component fitting edges (31) are groove walls of the V-shaped magnetic steel groove (4); The range of the V-shaped angle a between the two magnetic member bonding edges (31) is 5°≤V-shaped angle a≤30°.

4. The V-shaped outer rotor structure (300) according to claim 1, characterized in that: The rotor magnet core (2) comprises an inverted triangle mounting portion (21), a fan-shaped connecting portion (22) connected in sequence, and two positioning hook blocks (23) connected to the bottom of the fan-shaped connecting portion (22); The two side edges of the fan-shaped connecting portion (22) are the groove walls of the V-shaped magnetic steel groove (4); An inverted triangle mounting hole (11) is provided on the inner ring surface of the annular member (1), and the inverted triangle mounting hole (11) is used for mounting the inverted triangle mounting portion (21).

5. The V-shaped outer rotor structure (300) according to claim 4, characterized in that: The two positioning hook blocks (23) and the fan-shaped connecting portion (22) have two connections, one of which is an inwardly recessed corner connection (231), and the other is an arc connection (232); The shape of the corner connection (231) is compatible with the shape of the magnetic member (50).

6. The V-shaped outer rotor structure (300) according to claim 4, characterized in that: When a plurality of the rotor magnet cores (2) are mounted on the inner annular surface of the annular member (1), a first interval H is formed between the positioning hook blocks (23) of two adjacent rotor magnet cores (2).

7. The V-shaped outer rotor structure (300) according to claim 6, characterized in that: The minimum spacing of the first interval H is ≥1 mm, and the length of the first interval H is ≤120% of the thickness of the magnetic member (50).

8. A motor assembly (400), characterized in that: It comprises a central rotating shaft (100), an inner stator structure (200), and a V-shaped outer rotor structure (300) as claimed in any one of claims 1 to 7; The central rotating shaft (100) and the inner stator structure (200) are installed in the annular installation hole of the V-shaped outer rotor structure (300); the inner stator structure (200) and the V-shaped outer rotor structure (300) are sequentially sleeved on the outer circumference of the central rotating shaft (100); and the V-shaped outer rotor structure (300) rotates relative to the stator structure; The inner stator structure (200) comprises a stator ring core (201) and a plurality of stator teeth (202) extending radially outward from the stator ring core (201); the plurality of stator teeth (202) are circumferentially distributed around the axis of the stator ring core; stator windings are wound around the stator teeth (202); and the stator teeth (202) are in contact with the rotor magnet core (2) of the V-shaped outer rotor structure (300).

9. A generator device (500), characterized in that: It comprises a first housing (600), a second housing (700) and a motor assembly (400) as claimed in claim 8; The first housing (600) and the second housing (700) are respectively mounted on two sides of the motor assembly, and two ends of the central rotating shaft (100) are respectively passed through the first housing (600) and the second housing (700); The annular mounting edge (32) of the rotor yoke core (3) is provided with a first semicircular mounting groove (320), the inner annular surface of the annular member (1) is provided with a second semicircular mounting groove (12), and the first semicircular mounting groove (320) and the second semicircular mounting groove (12) correspond one to one to form a first circular mounting hole; The first shell (600) and the second shell (700) are provided with second circular mounting holes (800) corresponding to the first circular mounting holes, and the first circular mounting holes and the second circular mounting holes (800) are used for correspondingly passing fasteners.

10. A generator device (500), characterized in that: It comprises a first housing (600), a second housing (700) and a motor assembly (400) as claimed in claim 8; The first shell (600) and the second shell (700) are respectively mounted on two sides of the motor assembly, and two ends of the central rotating shaft (100) are respectively passed through the first shell (600) and the second shell (700); The annular member (1) is provided with a first circular mounting hole (13), the edge of the first circular mounting hole (13) is arranged to protrude toward the inner annular surface of the annular member (1), and the annular member mounting edge (32) of the rotor yoke core (3) is provided with a first semicircular mounting groove (320) adapted to the edge of the first circular mounting hole (13); The first shell (600) and the second shell (700) are provided with second circular mounting holes (800) corresponding to the first circular mounting holes, and the first circular mounting holes and the second circular mounting holes (800) are used for correspondingly passing fasteners.

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