Motor

Abstract

To provide a motor that can have an electric wire coil prevented from getting disordered in winding with a simple configuration.SOLUTION: A motor has a configuration that has a plurality of teeth 2 wound with an electric wire coil 1. Each of the teeth 2 has one or more winding skip parts 3 when the electric wire coil 1 is wound, and the electric wire coil 1 is wound around the winding skip parts 3 after being wound up to an outermost position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a motor. [Background technology]

[0002] Patent Document 1 discloses a motor having a stator with teeth including a multilayer coil, and a rotor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-124420 Summary of the Invention [Problem to be solved by the invention]

[0004] When winding a wire coil around a tooth, if the winding starts from the inner diameter of the tooth (symbol A in Figure 1), and the winding is done in the correct order, with the end point (symbol B in Figure 1) being the outermost diameter (outermost part), the angle of the wire coil becomes too steep when moving on to the next tooth, which can cause the winding to collapse.

[0005] An object of the present disclosure is to provide a motor that has a simple structure and can prevent the wire coil from becoming unwound. [Means for solving the problem]

[0006] One aspect for achieving the above object is a motor having a plurality of teeth around which an electric coil is wound, and in each tooth, one or more skip locations are formed when winding the electric coil, and after winding to the outermost position, the electric coil is wound around the skip locations.

[0007] In the motor according to the present disclosure, the winding skip portion is wound with the electric wire coil before winding it around the next pole (tooth), so the angle of the electric wire coil does not become steep, and winding collapse can be suppressed. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a motor that can prevent the wire coil from becoming unwound with a simple structure. [Brief explanation of the drawings]

[0009] [Figure 1] 5A and 5B are diagrams illustrating an example of a winding structure of an electric coil around a tooth in the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Specific embodiments to which the present disclosure is applied will be described in detail below with reference to the drawings. The present disclosure relates to a winding structure of a core that constitutes a stator of a motor. However, the present disclosure is not limited to the following embodiments. Also, for clarity of explanation, the following description and drawings have been simplified as appropriate. Note that FIG. 1 is a diagram illustrating an example of the winding structure of an electric wire coil around teeth in this embodiment.

[0011] Until now, when winding the electric wire coil 1 around the teeth 2, if the winding starts from the inner diameter of the teeth 2 as the starting point A and is turned back in order (for example, when ending on an even number of rows), with the outermost diameter at the end point B, the angle of the electric wire coil 1 becomes steep when moving on to the next tooth C, and the winding can become unbalanced. In particular, there have been many cases where the electric wire coil that forms the outer periphery (the outer coil) becomes unbalanced.

[0012] On the other hand, in the motor (rotating electric machine) according to this embodiment, when winding the electric wire coil 1 from the start point A to the end point B on each tooth 2, one or more skip positions 3 are formed, and after winding to the outermost part (end point B), the electric wire coil 1 is wound around the skip position 3 and then wound down onto the next tooth C. In this way, in this embodiment, winding around the skip position 3 before winding around the next pole and winding down using the skip position 3 can prevent the winding from collapsing. As a result, a highly efficient, high-output motor can be realized.

[0013] 1, when winding the electric wire coil 1 around the tooth 2 in the direction of the arrow from the start point A to the end point B, one or more skipped winding portions 3 are formed, and the next portion is wound without winding the electric wire coil 1 at those portions. Then, after winding the electric wire coil 1 up to the end point B, which is the outermost diameter, the electric wire coil 1 is wound down using the skipped winding portions 3, and the next tooth C (next pole) is wound in the same way. In this case, the position of the winding-off portion 3 can be set as appropriate within a range that achieves the effects of the present disclosure, but is preferably at least one portion of the electric wire coil that forms the outermost diameter (outermost portion). By using the outermost electric wire coil as the winding-off portion in this way, the electric wire coil is wound around the winding-off portion before moving to the next pole, so that the electric wire coil can be held down at the outermost portion, and in particular, collapse of the outermost portion can be easily prevented.

[0014] The number of winding-off locations 3 may be one or more, and may be set appropriately within a range that achieves the effects of the present disclosure. That is, the number of winding-off locations 3 may be two or more, three or more, or four or more.

[0015] The motor according to the present disclosure has a plurality of teeth 2 around which electric wire coils 1 are wound. The components constituting the motor may have any conventionally known structure, and are not particularly limited and may be appropriately configured within the scope of the effects of the present disclosure. For example, the teeth 2 may be radially arranged at equal intervals in the circumferential direction around the outer periphery of a circular core body. Each tooth 2 may be, for example, substantially T-shaped, and the electric wire coils 1 may be wound around the winding drum of the tooth 2. Furthermore, the electric wire coils may be wound sequentially around the winding drum of the tooth 2 using a concentrated winding method. More specifically, the first layer of electric wire coils may be wound so that the bottommost electric wire coil is in close contact with the winding surface of the winding drum, and the second and subsequent layers of electric wire coils may be wound on top of that so that at least a portion of each coil overlaps the first layer of electric wire coil. Thus, in this embodiment, the electric wire coils 1 may be wound around the teeth 2 in a multi-layer structure. Furthermore, various configurations of the motor, such as the number and arrangement of teeth 2, the number and arrangement of slots and poles (magnetic poles), and the number of turns of the electric coil, are not particularly limited and can be set appropriately depending on the application of the motor.

[0016] The motor can be used for a variety of purposes without any particular limitations, for example, as a motor for a vehicle such as an automobile.

[0017] As described above, in this embodiment, the skipped portion is wound with a wire coil before winding it around the next pole, so the angle of the wire coil does not become steep, and a motor can be provided that has a simple structure and can prevent the wire coil from becoming unwound.

[0018] The present disclosure is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present disclosure. [Explanation of symbols]

[0019] 1 wire coil 2 Teeth 3. Winding point A Starting point B End point C Next Teeth

Claims

[Claim 1] The rotor has a plurality of teeth around which a coil of wire is wound, A motor characterized in that, in each tooth, one or more skipped portions are formed when winding the electric wire coil, and after winding is completed to the outermost position, the electric wire coil is wound around the skipped portion.

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