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Coreless motor
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology with no iron core and fixed shaft, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., and can solve the problems such as the built-in reducer is not proposed
Pending Publication Date: 2020-06-05
CORELESS MOTOR CO LTD
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
[0014] In this way, in the coreless motor, which is an ironless motor, as in Patent Documents 3 and 4, it has not been proposed to incorporate a unit such as a speed reducer in the past.
Method used
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Embodiment approach 1
[0046] figure 1 An example of an embodiment is shown in which a rotational motion transmission mechanism for outputting rotational motion of a rotating portion (rotor) inside the ironless motor to the outside of the ironless motor is incorporated in the ironless motor.
[0047] A coreless motor 1 shown in FIG. 1 includes a fixed shaft 2, a stator 3, a cylindrical coil 4, a rotor 8, a cylindrical housing 10, and a rotational motion transmission mechanism.
[0048] The fixed shaft 2 extends axially at the center of the coreless motor 1 and penetrates through the coreless motor 1 .
[0049] The cylindrical coil 4 is concentrically arranged with respect to the fixed shaft 2 , and one end surface thereof is supported by the stator 3 , and extends in a direction in which the fixed shaft 2 extends. The radial inner side of the stator 3 is fixed to the fixed shaft 2 .
[0050] The cylindrical coil 4 is an energizable ironless coil. In the illustrated embodiment, in FIG. 1 , a lami...
Embodiment approach 2
[0081] image 3 In the illustrated ironless motor 21, the fixed shaft 2 of the ironless motor 1 illustrated in FIG.
[0082] In other respects, it is the same as the coreless motor 1 shown in FIG. 1, so common parts are denoted by common reference numerals and descriptions thereof are omitted.
[0083] In the illustrated embodiment, the outer diameter of the shaft body 2b positioned in the middle is made smaller than the outer diameters of the shaft bodies 2a and 2c. In addition, fitting holes for fitting and fixing the shaft body 2b are respectively formed on the shaft body 2b side of the shaft body 2a and the shaft body 2b side of the shaft body 2c.
[0084] Thereby, the shaft body 2b can be fitted and fixed to the shaft body 2a from the shaft extending direction, and the shaft body 2c can be fitted and fixed to the shaft body 2b from the shaft extending direction to constitute one fixed shaft. Therefore, when the rotational motion transmission mechanism for outputting the...
Embodiment approach
[0088] Figure 4 ~ Figure 7 The illustrated implementation and use figure 1 , image 3 The embodiments described are the same, and all are coreless motors having the following configurations.
[0089] The fixed shaft 2 extends axially at the center of the coreless motor 1 and penetrates through the coreless motor 1 .
[0090] The cylindrical coil 4 is concentrically arranged with respect to the fixed shaft 2 , and one end surface thereof is supported by the stator 3 , and extends in a direction in which the fixed shaft 2 extends.
[0091] The rotor 8 is arranged concentrically with respect to the fixed shaft 2, is composed of a cylindrical inner yoke and an outer yoke, and is rotatably supported by the fixed shaft 2 at the center side in the radial direction. The inner yoke and the outer yoke The iron sandwiches the cylindrical coil 4 between each other in the radial direction, and a magnet 7 is provided on one of the faces facing the other to form a magnetic circuit betwe...
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Abstract
The present invention provides a coreless motor in which a rotational motion transmission mechanism for outputting the rotational motion of a rotor in the coreless motor interior to the outside of thecoreless motor is built into the coreless motor. The coreless motor comprises: a fixed shaft that extends in the axial direction at the center of the coreless motor and passes through said coreless motor; a cylindrical coil that is disposed concentrically with respect to the fixed shaft, and has an end surface on one side that is supported by a stator and extends in the direction in which the fixed shaft extends; a rotor that is disposed concentrically with respect to the fixed shaft and comprises a cylindrical inner yoke and outer yoke positioned so that the cylindrical coil is sandwiched between the yokes in the radial direction, each of the yokes being provided with a magnet positioned on the side of the yoke that faces the other yoke, a magnetic circuit being formed between the yokes,and the rotor being rotatably supported by the fixed shaft at the radial center; a cylindrical housing that comprises a cylindrical part disposed concentrically with respect to the fixed shaft on theoutside of the outer yoke in the radial direction, said cylindrical part rotating about the fixed shaft; and a rotational motion transmission mechanism disposed in the interior of the cylindrical housing, said mechanism transmitting, to the cylindrical housing, the rotational motion of the rotor about the fixed shaft.
Description
technical field [0001] The present invention relates to ironless motors. In particular, it relates to an ironless motor incorporating a rotational motion transmission mechanism for outputting the rotational motion of a rotating part (rotor) inside the ironless motor to the coreless motor. external. Background technique [0002] Conventionally, it has been proposed to mount a unit such as a speed reducer or a brake on the side of the rotating shaft of the motor on which the driving object is mounted, that is, on the output side of the rotating shaft, or on the opposite side thereof. [0003] For example, Patent Document 2 proposes a motor in which a planetary roller mechanism is arranged between a power shaft and a rotor concentrically arranged on the power shaft. [0004] In addition, Patent Document 1 describes a motor with a speed reducer. The motor with a reducer is an iron-core type motor, and units such as a reducer are built in the motor. An armature and a cylindri...
Claims
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Application Information
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