Independent silicon steel sheet stator permanent magnet motor

Abstract

The invention discloses an independent silicon steel sheet stator permanent magnet motor, and relates to the technical field of permanent magnet motors, the independent silicon steel sheet stator permanent magnet motor comprises a casing or a rotary outer rotor, an end cover, a plurality of coil assemblies and a shaft body assembly, the coil assemblies are clamped and fixed on the inner wall of the casing or the periphery of the shaft body assembly, and the coil assemblies are mutually independent; an iron core in the coil assembly is of a structure formed by stacking a plurality of identical silicon steel sheets. According to the independent silicon steel sheet stator permanent magnet motor, the coil assembly formed by the independent silicon steel sheets is adopted, the coil on each silicon steel sheet can be independently electrified to generate an electromagnetic field and interact with the permanent magnet on the rotor to generate torque, the efficiency of the electromagnetic field is enhanced, and the process of converting electric energy into mechanical energy is more direct and efficient; therefore, a higher electric energy utilization rate and a more obvious energy-saving effect are realized.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet motors, in particular to an independent silicon steel sheet stator permanent magnet motor. Background Art

[0002] With the rapid development of modern industry and technology, the optimization and improvement of motor performance as an important component driving various mechanical equipment has always been a research hotspot in the industry. In the design and manufacturing process of traditional motors, there are often problems such as low power utilization, high energy consumption and poor heat dissipation performance. These problems not only affect the operating efficiency of the motor, but also increase the operating cost of the equipment.

[0003] In the field of motors, permanent magnet motors have attracted much attention due to their high efficiency and energy saving. Permanent magnet motors use the interaction between the magnetic field generated by permanent magnets and the electromagnetic field generated by the stator coil after power is applied to achieve the conversion of electrical energy into mechanical energy. However, the stator structure of traditional permanent magnet motors mostly adopts an integral design, that is, the stator core and the coil are manufactured and installed as a whole. This design method limits the performance improvement and flexible application of the motor to a certain extent. Summary of the invention

[0004] To this end, the present invention provides an independent silicon steel sheet stator permanent magnet motor to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: an independent silicon steel sheet stator permanent magnet motor, comprising a housing or a rotating outer rotor, an end cover, a plurality of coil assemblies and a shaft assembly, wherein the coil assembly is clamped and fixed to the inner wall of the housing or a circle of the shaft assembly, and each coil assembly is independent of each other;

[0006] The iron core in the coil assembly is a stacked structure of several identical silicon steel sheets.

[0007] Furthermore, the casing and the end cover or the two end covers and the rotating outer rotor are connected and fixed by a plurality of bolts.

[0008] Furthermore, the coil assembly includes an iron core and a coil, and the silicon steel sheet includes a clamping portion, a first tooth and a second tooth, and is an integrally formed structure.

[0009] Furthermore, the independent silicon steel sheet stator permanent magnet motor also includes a stator slot non-rotating body, and a plurality of slots are opened on the inner wall of the housing or around the stator slot non-rotating body, and the positioning parts of the silicon steel sheets are fixed in the slots.

[0010] Furthermore, the coils are respectively wound around the outside of the first tooth and the second tooth, and after being energized, a Z-pole electromagnetic field and an S-pole electromagnetic field are respectively formed at the ends of the first tooth and the second tooth.

[0011] Furthermore, when the coil assembly is snap-fitted and fixed to the inner wall of the casing, the shaft assembly includes a rotor, a shaft, and a plurality of permanent magnets embedded in the rotor, and the permanent magnets are circumferentially distributed on the edge of the rotor.

[0012] Furthermore, when the coil assembly is engaged and fixed on one circle of the shaft assembly, a plurality of permanent magnets are installed on one circle inside the rotating outer rotor. The shaft assembly consists of a stator slot non-rotating body and a non-rotating shaft. A slot for fixing the coil assembly is provided on one circle of the stator slot non-rotating body.

[0013] Furthermore, the coil assembly after being energized interacts with the permanent magnet to generate torque, thereby driving the rotor or the rotating outer rotor to rotate.

[0014] Compared with the prior art, it has the following beneficial effects:

[0015] The independent silicon steel sheet stator permanent magnet motor adopts a coil assembly composed of independent silicon steel sheets. The coil on each silicon steel sheet can be independently energized to generate an electromagnetic field, which interacts with the permanent magnets on the rotor to generate torque. This design not only enhances the efficiency of the electromagnetic field, but also makes the conversion process of electrical energy into mechanical energy more direct and efficient, thereby achieving higher energy utilization and more significant energy saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 This is a disassembled three-dimensional diagram of an independent silicon steel sheet stator permanent magnet motor according to Example 1 of the present invention.

[0019] Figure 2 This is a disassembled stereoscopic diagram of a coil assembly in an independent silicon steel sheet stator permanent magnet motor according to Example 1 of the present invention.

[0020] Figure 3This is a three-dimensional diagram of silicon steel sheets in an independent silicon steel sheet stator permanent magnet motor according to Example 1 of the present invention.

[0021] Figure 4 This is a three-dimensional diagram of a central shaft assembly of an independent silicon steel sheet stator permanent magnet motor according to Example 1 of the present invention.

[0022] Figure 5 This is a three-dimensional diagram of a casing of an independent silicon steel sheet stator permanent magnet motor according to Example 1 of the present invention.

[0023] Figure 6 This is a half-section view of an independent silicon steel sheet stator permanent magnet motor after assembly according to Example 1 of the present invention.

[0024] Figure 7 This is a disassembled three-dimensional diagram of an independent silicon steel sheet stator permanent magnet motor according to Example 2 of the present invention.

[0025] Figure 8 This is a three-dimensional diagram of a central shaft assembly of an independent silicon steel sheet stator permanent magnet motor according to Example 2 of the present invention.

[0026] Fig. 9 This is a three-dimensional diagram of a casing of an independent silicon steel sheet stator permanent magnet motor according to Example 2 of the present invention.

[0027] Fig.10 This is a half-section view of an assembled independent silicon steel sheet stator permanent magnet motor according to Example 2 of the present invention.

[0028] In the figure: 1. casing; 11. slot; 2. end cover; 3. coil assembly; 31. silicon steel sheet; 311. positioning part; 312. tooth No. 1; 313. tooth No. 2; 314. z-pole electromagnetic field; 315. s-pole electromagnetic field; 32. iron core; 33. coil; 4. shaft assembly; 41. rotor; 42. shaft; 43. permanent magnet; 5. rotating outer rotor; 6. stator slot non-rotating body; 7. non-rotating shaft. DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figures 1 to 6As shown, an independent silicon steel sheet stator permanent magnet motor in the embodiment of the first aspect of the present invention is mainly composed of a casing 1, an end cover 2, a plurality of coil assemblies 3 and a shaft assembly 4, wherein the casing 1 and the end cover 2 are connected and fixed by a plurality of bolts, the shaft assembly 4 is installed inside the casing 1, and the plurality of coil assemblies 3 are fixed on the inner wall of the casing 1 and distributed around a circle of the shaft assembly 4, and each coil assembly 3 is independent of each other;

[0032] The coil assembly 3 is composed of an iron core 32 and two coils 33, wherein the iron core 32 is formed by stacking a plurality of identical silicon steel sheets 31, and each silicon steel sheet 31 is composed of a clamping portion 311, a first tooth 312, and a second tooth 313, wherein the clamping portion 311, the first tooth 312, and the second tooth 313 are an integrally formed structure, and a plurality of clamping grooves 11 are provided on the inner wall of the housing 1, and the clamping portion 311 is clamped and fixed inside the clamping groove 11, thereby achieving the effect of clamping and fixing a plurality of coil assemblies 3 inside the housing 1, and after being clamped, the coil assembly 3 will not be displaced, and the two coils 33 are respectively wound around the outside of the first tooth 312 and the second tooth 313, and after the two coils 33 are energized, a z-pole electromagnetic field 314 and an s-pole electromagnetic field 315 are formed at the ends of the first tooth 312 and the second tooth 313 respectively;

[0033] The shaft assembly 4 consists of a rotor 41, a shaft 42 and a plurality of permanent magnets 43, wherein the shaft 42 is connected to the end of the rotor 41, and the plurality of permanent magnets 43 are embedded in the rotor 41 and circumferentially distributed on the edge of the rotor 41, and the positions of the plurality of permanent magnets 43 correspond to the positions of the plurality of coil assemblies 3.

[0034] When the permanent magnet motor is used, when the two coils 33 are energized, the first tooth 312 and the second tooth 313 generate a z-pole electromagnetic field 314 and an S-pole electromagnetic field 315 respectively. Under the action of the z-pole electromagnetic field 314 and the S-pole electromagnetic field 315, torque is generated at the permanent magnet 43 corresponding to the rotor 41, driving the rotor 41 to rotate, thereby enhancing the rotational force that drives the rotor, achieving efficient power utilization and more energy saving.

[0035] Example 2

[0036] like Figures 7 to 10 As shown, an independent silicon steel sheet stator permanent magnet motor in the embodiment of the first aspect of the present invention is mainly composed of a rotating outer rotor 5, two end covers 2, a plurality of coil assemblies 3 and a shaft assembly 4, wherein the two end covers 2 are fixed to both ends of the rotating outer rotor 5 by a plurality of bolts, the shaft assembly 4 is installed inside the rotating outer rotor 5, a plurality of coil assemblies 3 are clamped and fixed around a circle of the shaft assembly 4, and each coil assembly 3 is independent of each other;

[0037] The structure of the coil assembly 3 is the same as that of Example 1. A plurality of permanent magnets 43 are installed around the rotating outer rotor 5. The shaft assembly 4 is composed of a stator slot non-rotating body 6 and a non-rotating shaft 7. A plurality of slots 11 are opened around the stator slot non-rotating body 6. The coil assembly 3 is fixed to a circle of the shaft assembly 4 through the slots 11. Similarly, the positions of the plurality of permanent magnets 43 correspond to the positions of the plurality of coil assemblies 3.

[0038] Compared with Example 1, Example 1 is an inner rotor permanent magnet motor, and Example 2 is an outer rotor permanent magnet motor. In Example 2, the coil assembly 3 is installed on the shaft assembly 4, and several permanent magnets 43 are installed inside the rotating outer rotor 5 (Example 1 is to install the coil assembly 3 on the inner wall of the casing 1, and several permanent magnets 43 are installed inside the rotor 41). The structural distribution is different. When in use, the non-rotating shaft 7 is connected and fixed to the outside, the stator slot non-rotating body 6 and the non-rotating shaft 7 are fixed, and the rotating outer rotor 5 rotates.

[0039] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0040] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. An independent silicon steel sheet stator permanent magnet motor, comprising a housing (1) or a rotating outer rotor (5), an end cover (2), a plurality of coil assemblies (3) and a shaft assembly (4), characterized in that: The coil assembly (3) is fixedly engaged with the inner wall of the housing (1) or the circumference of the shaft assembly (4), and each coil assembly (3) is independent of each other; The iron core (32) in the coil assembly (3) is a stacked structure of a plurality of identical silicon steel sheets (31).

2. The independent silicon steel sheet stator permanent magnet motor according to claim 1, characterized in that: The casing (1) and the end cover (2) or the two end covers (2) and the rotating outer rotor (5) are connected and fixed by a plurality of bolts.

3. The independent silicon steel sheet stator permanent magnet motor according to claim 1, characterized in that: The coil assembly (3) comprises an iron core (32) and a coil (33), and the silicon steel sheet (31) comprises a clamping portion (311), a first tooth (312) and a second tooth (313), and is an integrally formed structure.

4. The independent silicon steel sheet stator permanent magnet motor according to claim 3, characterized in that: It also comprises a stator slot non-rotating body (6), a plurality of slots (11) are provided on the inner wall of the housing (1) or around the stator slot non-rotating body (6), and the clamping portion (311) of the silicon steel sheet (31) is clamped and fixed inside the slot (11).

5. The independent silicon steel sheet stator permanent magnet motor according to claim 3, characterized in that: The coil (33) is respectively wound around the outside of the first tooth (312) and the second tooth (313), and after being energized, a Z-pole electromagnetic field (314) and an S-pole electromagnetic field (315) are respectively formed at the ends of the first tooth (312) and the second tooth (313).

6. The independent silicon steel sheet stator permanent magnet motor according to claim 4, characterized in that: When the coil assembly (3) is snap-fitted and fixed to the inner wall of the housing (1), the shaft assembly (4) comprises a rotor (41), a shaft (42), and a plurality of permanent magnets (43) embedded in the rotor (41), wherein the permanent magnets (43) are circumferentially distributed on the edge of the rotor (41).

7. The independent silicon steel sheet stator permanent magnet motor according to claim 4, characterized in that: When the coil assembly (3) is engaged and fixed on one circle of the shaft assembly (4), a plurality of permanent magnets (43) are installed on one circle inside the rotating outer rotor (5); the shaft assembly (4) is composed of a stator slot non-rotating body (6) and a non-rotating shaft (7); and a slot (11) for fixing the coil assembly (3) is provided on one circle of the stator slot non-rotating body (6).

8. The independent silicon steel sheet stator permanent magnet motor according to any one of claims 1 to 7, characterized in that: After being energized, the coil assembly (3) interacts with the permanent magnet (43) to generate torque, thereby driving the rotor (41) or the rotating outer rotor (5) to rotate.

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