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Coreless motor
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An electric motor, ironless technology, applied in the direction of electric components, synchronous motors with stationary armature and rotating magnets, electrical components, etc.
Inactive Publication Date: 2019-02-05
CORELESS MOTOR CO LTD
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Abstract
Description
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[0009] Due to such a structure, similar to the conventional coreless motor, in the coreless motor described in Patent Document 6, it is not conceivable to incorporate units such as a speed reducer inside the coreless motor.
Method used
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Embodiment approach 1
[0067] figure 1 The illustrated embodiment is an example in which the unit 13 is built in the coreless motor 1 . As the unit 13, a conventionally known speed reducer composed of gears and the like can be used.
[0068] figure 1 The illustrated coreless motor 1 includes a rotating shaft 2 , a stator 3 , a coil 4 , a rotor 7 , and a housing 9 . The rotation axis 2 is a central axis as a rotation center.
[0069] The cylindrical coil 4 extends in the direction in which the rotating shaft 2 extends and is arranged concentrically with the rotating shaft 2 . One end surface of the cylindrical coil 4 is supported by the stator 3 . exist
[0070] figure 1 In the embodiment shown, the left end face is supported by the stator 3 .
[0071] The cylindrical coil 4 is an energizable ironless coil. In the illustrated embodiment, the figure 1 Among them, the laminate structure of conductive metal sheets formed by overlapping with a plurality of separated linear portions in the longitu...
Embodiment approach 2
[0099] image 3 The illustrated embodiment is another example in which the unit 13 is built in the coreless motor 1 . As unit 13, a brake can be employed.
[0100] exist image 3 In the illustrated embodiment, the rotating shaft 2 rotatably supported by the housing 9 extends to the outside of the housing 9 to form an output end 12b. Other construction and use figure 1 The configuration described in Embodiment 1 is the same. Therefore, the same parts as those described in Embodiment 1 are denoted with and figure 1 The reference numerals used in the description of the same reference numerals will be omitted.
[0101] exist image 3 In the illustrated embodiment, the rotating shaft 2 does not pass through the cylindrical inner yoke 5 in the direction in which the rotating shaft 2 extends, but ends in the middle of the inner yoke 5 in the extending direction of the rotating shaft 2 . Thus, a space portion 14 is formed in the cylindrical inner yoke 5 of the coreless motor 1 ...
Embodiment approach 3
[0111] Figure 5 , Image 6 The illustrated embodiment is another example in which a unit is built in the coreless motor 1 . As a unit, a fan may be used.
[0112] exist Figure 5 , Image 6 The illustrated embodiment also works with image 3 , Figure 4 As in the illustrated embodiment, the rotating shaft 2 does not pass through the cylindrical inner yoke 5 in the direction in which the rotating shaft 2 extends, but ends in the middle of the inner yoke 5 in the direction in which the rotating shaft 2 extends. Thus, a space portion is formed in the cylindrical inner yoke 5 of the coreless motor 1 .
[0113] exist Figure 5 In the illustrated embodiment, in the coreless motor 1, a space portion (SPACE) 14 is provided inside the cylindrical inner rotor 5 in the direction in which the rotating shaft 2 extends, and a fan is arranged in the space portion (SPACE) 14. 18 , the cylindrical inner rotor 5 is positioned inside the cylindrical coil 4 arranged concentrically with r...
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Abstract
The present invention provides a coreless motor in which a unit is coupled to the end of a rotating shaft within the coreless motor and the unit is incorporated without increasing the length in the direction in which the rotating shaft of the coreless motor extends. The coreless motor is provided with: a cylindrical coil that is arranged concentrically with a central shaft serving as the center ofrotation, that extends in the direction in which the central shaft extends, and in which the end surface on one side of said cylindrical coil is supported by a stator; a cylindrical inner yoke and acylindrical outer yoke that have the coil sandwiched therebetween in the radial direction and that form a magnetic circuit therebetween; a rotor that is arranged concentrically with the central shaftand that is supported on the central side thereof in the radial direction by the central shaft; and a housing that is cylindrical, said housing being either a housing that is provided with a cylindrical section arranged on the exterior of the outer yoke in the radial direction and that is capable of rotating with respect to the central shaft or a housing that is provided with a cylindrical sectionarranged on the exterior of the outer yoke in the radial direction and in which the cylindrical section is made to rotate by rotation of the central shaft. A unit coupled to the end of the rotating shaft within the coreless motor is provided to a space within the coreless motor.
Description
technical field [0001] This invention relates to ironless motors. In particular, it relates to a coreless motor in which various units such as a speed reducer and a brake are built in the coreless motor. Background technique [0002] Conventionally, it has been proposed to attach units such as a speed reducer and a brake to the output side of the rotating shaft, which is the side where the driven object is attached to the rotating shaft of the motor, or the opposite side thereof. [0003] For example, Patent Document 4 proposes arranging a motor of a planetary roller mechanism between a power shaft and a rotor arranged concentrically with the power shaft. [0004] Patent Documents 1 to 5 are so-called core-type motors. Conventionally, in such an iron-core type motor, it has been proposed to incorporate units such as a speed reducer inside the motor. [0005] On the other hand, conventionally, it has not been proposed to incorporate a unit such as a speed reducer in a core...
Claims
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Application Information
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