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Stator and single-phase motor
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A stator and motor technology, applied in electromechanical devices, applications, hairdressing equipment, etc., can solve problems such as the inability to form an efficient magnetic circuit, and the difficulty of single-phase motors to exert high torque, etc., to achieve the effect of a high-efficiency magnetic circuit
Inactive Publication Date: 2019-05-17
MABUCHI MOTOR
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Abstract
Description
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Problems solved by technology
Therefore, an efficient magnetic path cannot be formed for the magnetic flux radially extending from the outer peripheral surface of the rotor, and it is difficult for a single-phase motor to exert high torque.
Method used
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no. 1 approach
[0036] Below, refer to Figure 1 ~ Figure 3 , the single-phase motor 1 according to the first embodiment of the present invention will be described.
[0037] Such as figure 1 and figure 2 As shown, the single-phase motor 1 includes: a rotor unit 6 having a shaft-shaped rotor 10 that has a rotating shaft 11 and is rotatably arranged; and a stator 5 that covers the rotor 10 .
[0038] In the following description, the direction along the central axis O of the rotary shaft 11 is referred to as an axial direction. In addition, the direction perpendicular to the central axis O in plan view from the axial direction is referred to as a radial direction, and the direction surrounding the central axis O is referred to as a circumferential direction. In addition, one direction in the radial direction is referred to as a first radial direction X.
[0039] In addition, in each direction, the direction toward the central axis O is referred to as the inner side, and the direction away ...
no. 2 approach
[0078] Next, refer to Figure 4 A second embodiment of the present invention will be described. It should be noted that, in each of the following embodiments, the same reference numerals are assigned to the same configurations as those of the first embodiment, and description thereof will be omitted, and only differences will be described.
[0079] Such as Figure 4 As shown, in the single-phase motor 2 of the present embodiment, the angle α formed by the pair of arm portions 21 of the stator core 20 in the plan view is 80°.
no. 3 approach
[0081] Next, refer to Figure 5 A third embodiment of the present invention will be described. It should be noted that, in each of the following embodiments, the same reference numerals are assigned to the same configurations as those of the first embodiment, and description thereof will be omitted, and only differences will be described.
[0082] Such as Figure 5 As shown, in the single-phase motor 3 of the present embodiment, the angle α formed by the pair of arm portions 21 of the stator core 20 in the plan view is 70°.
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Abstract
Provided is a stator of a single-phase motor with which an efficient magnetic circuit can be formed and a large torque can be obtained and the single-phase motor. The stator includes a pair of statorcores (20) each having C-shape in a plan view and including distal end portions E disposed proximate to an outer peripheral surface of an axial rotor (10) having a rotating shaft (11). The stator cores (20) are disposed to opposite to each other with the rotor (10) disposed therebetween in a first radial direction X orthogonal to an axial direction along a central axis line O of the rotating shaft11. The stator cores 20 include a pair of arm portions 21 each extending in a radial direction intersecting the first radial direction X, and a base portion 22. The base portion connects ends of thearm portions 21 on the opposite side from the distal end portions E, and extends in a circumferential direction encircling the central axis line O.
Description
technical field [0001] The invention relates to a stator and a single-phase motor. Background technique [0002] Conventionally, there is known a single-phase motor as shown in the following Patent Document 1. This single-phase motor includes: a shaft-shaped rotor having a rotating shaft and arranged so as to be rotatable; and a pair of stator cores having a C-shaped shape. , and the front end is close to the outer peripheral surface of the rotor. The pair of stator cores are arranged to face each other in a first radial direction among the radial directions of the rotating shaft across the rotor, and each includes a pair of arm portions extending parallel to the first radial direction. [0003] Generally, such a single-phase motor is applied to a small electric product such as a hair dryer that is held and used by a user with one hand, for example, and the size and weight of the motor are reduced for convenience. [0004] prior art literature [0005] patent documents ...
Claims
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Application Information
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