Stator winding for axial flux motor

Abstract

The utility model relates to the technical field of axial magnetic flux motors, in particular to a stator winding for an axial magnetic flux motor, which comprises an upper stator assembly and a lower stator assembly positioned below the upper stator assembly, and the upper stator assembly and the lower stator assembly are respectively composed of a left stator iron core and a right stator iron core. The left stator iron core and the right stator iron core comprise yoke parts, tooth parts and groove parts. The two ends of the surface of the left stator iron core and the two ends of the surface of the right stator iron core are both provided with the groove parts. According to the utility model, the upper stator assembly and the lower stator assembly are arranged above and below the rotor, and the upper stator assembly and the lower stator assembly cooperate with each other to increase the magnetic field of the rotor and improve the rotation effect of the rotor; and meanwhile, the upper-layer stator assembly and the lower-layer stator assembly are spliced and encircled into a ring by utilizing the left stator iron core and the right stator iron core, so that an N-S-N-S quadrupole magnetic field can be formed.

Description

A stator winding for an axial flux motor Technical Field

[0001] This utility model relates to the field of axial flux motor technology, specifically to a stator winding for an axial flux motor. Background Technology

[0002] Axial flux motors, also known as disc motors, have advantages such as compact structure, high efficiency, and high power density. They are particularly suitable for applications such as electric vehicles, renewable energy systems, energy storage systems, and industrial equipment. The stator and its windings are one of the important components of axial flux motors.

[0003] Currently, the magnetic field generated by existing stator windings after energization is relatively weak, which affects the rotational speed of the rotor. Moreover, existing stator windings rarely have a four-pole magnetic field, which causes great trouble for users. Summary of the Invention

[0004] The purpose of this invention is to provide a stator winding for an axial flux motor to solve the problem mentioned in the background art that the magnetic field generated by the existing stator winding after energization is weak and it is rare to be able to set a four-pole magnetic field.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stator winding for an axial flux motor, comprising an upper stator assembly and a lower stator assembly located below the upper stator assembly, wherein both the upper stator assembly and the lower stator assembly are composed of a left stator core and a right stator core, wherein the left stator core and the right stator core are joined together to form a ring structure;

[0006] The left stator core and the right stator core include a yoke, a toothed portion and a slotted portion. Both ends of the surface of the left stator core and the right stator core are provided with slotted portions. The surface of the left stator core and the right stator core and adjacent slotted portions are uniformly provided with teeth in the circumferential direction. Adjacent teeth and between teeth and slotted portions are provided with yokes.

[0007] The yoke is internally wound with a winding that can bind the left stator core and the right stator core into a complete ring.

[0008] Preferably, the upper stator assembly includes a plurality of stator laminations, which are stacked along their axial direction.

[0009] Preferably, the upper stator assembly is made of any one of cold-rolled steel sheet, silicon steel sheet, and selenium steel sheet.

[0010] Preferably, the surface of the yoke is provided with an insulating film, the insulating layer being made of any one of pressed cardboard, plastic film, polyester film, aramid paper, and epoxy resin.

[0011] Preferably, the included angle between the centerlines of any two adjacent yokes is equal.

[0012] Preferably, the tooth portion is provided with one tooth, the groove portion is provided with one lower stator assembly, and the shape of the groove portion is half the shape of the tooth portion.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the stator winding of this axial flux motor is implemented, the left stator core and the right stator core are joined together to form a ring, and then the winding is wound around the surface of the tooth section, so that the winding is accommodated inside the yoke section, thus becoming an upper stator assembly or a lower stator assembly. This utility model, by setting an upper stator assembly and a lower stator assembly above and below the rotor, utilizes the cooperation between the upper stator assembly and the lower stator assembly to increase the magnetic field of the rotor and improve the rotor rotation effect; at the same time, the upper stator assembly and the lower stator assembly, by joining the left stator core and the right stator core to form a ring, can form a four-pole magnetic field of NSNS, that is, when the rotor rotates a full revolution, each magnetic pole N or S will change twice, thus completing a complete magnetic field cycle. Attached Figure Description

[0014] Figure 1 is a three-dimensional appearance structure diagram of this utility model;

[0015] Figure 2 is a schematic diagram of the separated state structure of this utility model;

[0016] Figure 3 is a schematic diagram of the exploded magnified structure of this utility model;

[0017] Figure 4 is an enlarged structural schematic diagram of the stator assembly of this utility model;

[0018] Figure 5 is a schematic diagram of the enlarged winding structure of this utility model.

[0019] In the diagram: 1. Upper stator assembly; 2. Lower stator assembly; 100. Left stator core; 200. Right stator core; 110. Yoke; 120. Tooth section; 130. Slot section; 3. Winding. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] The structure of a stator winding for an axial flux motor provided by this utility model is shown in Figures 1, 3, and 4. It includes an upper stator assembly 1 and a lower stator assembly 2 located below the upper stator assembly 1. The upper stator assembly 1 includes multiple stator laminations stacked axially. The upper stator assembly 1 is made of any one of cold-rolled steel plate, silicon steel sheet, or selenium steel sheet. Both the upper stator assembly 1 and the lower stator assembly 2 are constructed from a left stator core 100 and... The right stator core 200 is composed of a left stator core 100 and a right stator core 200, which are joined together to form a ring structure. The left stator core 100 and the right stator core 200 include a yoke 110, a toothed part 120 and a groove 130. An insulating film is provided on the surface of the yoke 110. The insulating layer is made of any one of pressed paperboard, plastic film, polyester film, aramid paper and epoxy resin. The included angle between the center lines of any two adjacent yokes 110 is equal.

[0022] In practice, the left stator core 100 and the right stator core 200 are joined together to form a ring, and then the winding 3 is wound around the surface of the tooth 120 so that the winding 3 is accommodated inside the yoke 110, thereby becoming the upper stator assembly 1 or the lower stator assembly 2.

[0023] Further, as shown in Figures 2 to 5, slots 130 are provided at both ends of the surfaces of the left stator core 100 and the right stator core 200. Teeth 120 are uniformly provided circumferentially on the surfaces of the left stator core 100 and the right stator core 200 and between adjacent slots 130. A yoke 110 is provided between adjacent teeth 120 and between teeth 120 and slots 130. There are 8 teeth 120 and 2 lower stator assemblies in the slots 130. The shape of the slots 130 is half the shape of the teeth 120. The yoke 110 is wound with a winding 3 inside. The winding 3 can bind the left stator core 100 and the right stator core 200 into a complete ring.

[0024] This invention features an upper stator assembly 1 and a lower stator assembly 2 positioned above and below the rotor. The cooperation between the upper stator assembly 1 and the lower stator assembly 2 increases the magnetic field around the rotor, improving its rotation efficiency. Simultaneously, the upper stator assembly 1 and the lower stator assembly 2 are joined together by the left stator core 100 and the right stator core 200 to form a ring, creating a four-pole magnetic field of NSNS. This means that when the rotor rotates a full revolution, each magnetic pole N or S will change twice, thus completing a complete magnetic field cycle.

[0025] Working principle: When in use, the left stator core 100 and the right stator core 200 are first joined together to form a ring, and then the winding 3 is wound around the surface of the tooth 120 so that the winding 3 is accommodated inside the yoke 110, thus making it the upper stator assembly 1 or the lower stator assembly 2.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stator winding for an axial flux motor, comprising an upper stator assembly (1) and a lower stator assembly (2) located below the upper stator assembly (1), characterized in that: Both the upper stator assembly (1) and the lower stator assembly (2) are composed of a left stator core (100) and a right stator core (200). The left stator core (100) and the right stator core (200) are joined together to form a ring structure. The left stator core (100) and the right stator core (200) include a yoke (110), a toothed portion (120), and a slotted portion (130). Both ends of the surface of the left stator core (100) and the right stator core (200) are provided with A slot (130) is provided. Teeth (120) are uniformly arranged circumferentially on the surface of the left stator core (100) and the right stator core (200) and between adjacent slots (130). A yoke (110) is provided between adjacent teeth (120) and between teeth (120) and slots (130). A winding (3) is wound inside the yoke (110), which can bind the left stator core (100) and the right stator core (200) into a complete ring.

2. The stator winding for an axial flux motor according to claim 1, characterized in that: The upper stator assembly (1) includes multiple stator laminations, which are stacked along their axial direction.

3. The stator winding for an axial flux motor according to claim 1, characterized in that: The upper stator assembly (1) is made of any one of cold-rolled steel plate, silicon steel sheet and selenium steel sheet.

4. The stator winding for an axial flux motor according to claim 1, characterized in that: The surface of the yoke (110) is provided with an insulating film, which is made of any one of pressed cardboard, plastic film, polyester film, aramid paper and epoxy resin.

5. The stator winding for an axial flux motor according to claim 1, characterized in that: The included angle between the centerlines of any two adjacent yokes (110) is equal.

6. The stator winding for an axial flux motor according to claim 1, characterized in that: The toothed portion (120) is provided with (8) teeth, and the groove portion (130) is provided with (2) lower stator assemblies. The shape of the groove portion (130) is half the shape of the toothed portion (120).

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