JP2577923Y2 - Rotating electric machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electric machine that serves as a drive source or a power source for various actuators.

[0002]

2. Description of the Related Art
This type of rotating electric machine is configured such that a rotor formed by winding a coil around a rotating shaft is rotatably supported on a casing, a magnet is provided on an inner peripheral surface of the casing, and a current applied to the coil is switched by a commutator. To force the rotor to rotate. However, in this case, the space for installing the rotating electrical machine must be equal to or greater than that of the casing, and when installing in a narrow space or a special space, it must be installed. In some cases, even if it is installed, the casing itself must be reduced in size, and in such a case, the performance becomes inferior. Development was desired.

[0003]

SUMMARY OF THE INVENTION The present invention has been conceived in view of the above-mentioned circumstances and has an object to provide a rotating electric machine capable of eliminating these disadvantages.
The first idea is to form the hollow cylinder by bending it into a ring shape.
Endless cylinder casing, and
Inside the casing so that it can move freely in the
A rotating body having a ring shape and a predetermined interval between the rotating body
Composed of multiple ferromagnetic materials or permanent magnets provided
With respect to the magnetic body and the outer periphery of the casing, the ring
A plurality of coils sequentially wound in a state adjacent to
Powering that follows the movement of the rotating body.
Power take-out means that rotates to take out and strong rotating body
The coil excitation current applied to control
Apply current by controlling to switch to the adjacent coil side
Current application control means and a magnetic body provided on the rotating body.
And a rotating body position detecting means for detecting the position of the opposing file . In this case, the power take-out means provides an output shaft on the casing and forms a rotating body in a rack, while forming a pinion gear on the output shaft meshing with the rack of the rotating body, thereby moving the rotating body. , The output shaft can be configured to rotate. Further, the power take-out means is provided with an output shaft on the outer diameter side of the casing and seals the liquid, a liquid turbine is provided on the output shaft, and the output shaft rotates following the movement of the rotating body. can do.
The second idea is to curve the hollow cylinder into a ring shape.
Endless cylindrical casing formed and inside the casing
Inside the casing to be movable in the ring direction
Ring-shaped rotator, and a predetermined distance between the rotator
A plurality of permanent magnets and the casing
Sequentially in the state of being adjacent to the outer circumference of the ring in the ring direction.
A plurality of coils to be wound and a coil
A forced moving means for forcibly rotating the rolling body;
Extract the induced current based on the forced movement of the rotating body
The current extraction means provided in each coil and the rotating body
To detect the position of the permanent magnets facing the coil,
It is characterized in that constructed by a rotary posture location detecting section that is provided yl.

According to the present invention, a ring-shaped rotating electric machine having a ring-shaped central portion can be attached to a narrow portion or a special space.

[0005]

Next, a first embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a casing constituting a rotating electric machine, and the casing 1 has a hollow cylindrical body in a ring shape.
The hollow tube is bent so that the hollow tube becomes an endless tube.
The casing 1 is formed in a ring (arc) shape, and the center of the ring shape of the casing 1 is a gap 1a. Further, a bearing portion 1b, on which an output shaft 2 for taking out power is taken, is formed on the outer peripheral surface portion on the center side of the casing 1 as described later.

[0006] On the other hand, reference numeral 3 denotes a rotating body movably housed in the hollow portion of the casing 1, and the rotating body 3 has a ring-shaped rack 4 having a rack tooth 4a formed on the inner periphery, and an outer shape. The magnetic material 5 made of an arc-shaped ferromagnetic material (of course, a permanent magnet may also be used) is integrally provided at a predetermined interval. The magnetic material 5 may be iron, nickel, cobalt, or the like. For example, transition metals, rare metals, and organic compounds having ferromagnetism can be used. A fitting groove 5a is formed in the inner peripheral portion of the magnetic body 5, and the rack 4 is integrally fitted into the fitting groove 5a. It is configured. On the other hand, a pinion gear 2a is integrally provided on the output shaft 2 which is supported by the bearing portion 1b. The pinion gear 2a meshes with the rack teeth 4a, and Thus, the output shaft 2 is rotated based on the rotation.

Further, a plurality of coils 6 are wound around the outer periphery of the casing 1 at predetermined intervals adjacent to each other in the ring direction, and these coils 6 are connected to current application control means 7. . The current applying means 7 is controlled so as to sequentially and endlessly apply the current to the adjacent coils 6. Further, between the current applying means 7 and the coil 6, for example, a rotational position detector 11 a is used. A rotating body position detecting means 11 for detecting a position of the magnetic body 5 with respect to the coil 6 by detecting a change in current caused by the proximity of the magnetic body 5 is provided. When it is detected that the magnetic material 5 attracted by the excitation of the coil 6 has reached an arbitrary excitation coil 6 position, the current application means 7 is controlled so as to switch the current application to the adjacent coil.
Thereby, the magnetic body 5 is set so as to move so as to follow the sequentially excited adjacent coils and to rotate continuously.

In the embodiment of the present invention constructed as described above, as described above, the rotating body 3 is forcibly rotated and moved by applying a current to the adjacent coil 6 sequentially, and thereby the output shaft 2 is rotated. In this case, the casing 1 has a ring shape and its center is a gap 1a. Since other members can be provided, unlike the conventional electric motor in which the output shaft is provided at the center of the casing, it is possible to cope with a special layout which has been impossible in the related art.

The present invention is, of course, not limited to the above embodiment. For example, the magnetic body 5 may be constituted by a permanent magnet. In this case, one end of the magnetic body 5 The N pole and the other end may be S poles, but furthermore, as shown in FIG. 3, permanent magnets 8 are fixed to both ends of a magnetic body 5 which is a ferromagnetic material, respectively. Can also be configured. In this device, the output shaft 2 is connected to a forced rotation means (not shown) (preferably, such that a power transmission can be intermittently connected by a suitable means such as a clutch), and the output shaft 2 is forcedly rotated. As a result, when the rotating body 3 is forcibly rotated, an induced current is generated in the coil. By extracting the induced current, the coil can function as a generator. In the case of the third embodiment shown in FIGS. 4 and 5, the casing 1 has a liquid 9 such as oil sealed therein, and a power turbine is provided by rotating a liquid turbine 10 provided on the outer peripheral side surface of the casing 1. You may make it take out.

[0010]

[Effects] In summary, the present invention is constructed as described above, and therefore functions as an electric motor. However, the casing has a ring shape, and the casing has a central portion like a conventional electric motor. The output shaft is not provided, and the center portion is a gap, so that other members can be provided at the portion, which can cope with a special layout that has been impossible in the past.

[Brief description of the drawings]

FIG. 1 is a structural explanatory view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a structural explanatory view showing a second embodiment of the present invention.

FIG. 4 is a structural explanatory view showing a third embodiment of the present invention.

FIG. 5 is a sectional view taken along line BB in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Output shaft 2a Pinion gear 3 Rotating body 4 Rack 4a Rack tooth 5 Magnetic body 6 Coil 7 Current application control means 11 Rotary body position detecting means

Claims (4)

(57) [Scope of request for utility model registration] The hollow cylindrical body is formed by bending into a ring shape.
Endless cylinder casing, and
Inside the casing so that it can move freely in the
A rotating body having a ring shape and a predetermined interval between the rotating body
Composed of multiple ferromagnetic materials or permanent magnets provided
With respect to the magnetic body and the outer periphery of the casing, the ring
A plurality of coils sequentially wound in a state adjacent to
Powering that follows the movement of the rotating body.
Power take-out means that rotates to take out and strong rotating body
The coil excitation current applied to control
Apply current by controlling to switch to the adjacent coil side
Current application control means and a magnetic body provided on the rotating body.
A rotating electric machine comprising: a rotating body position detecting means for detecting a position at which the file is facing . 2. The rotating electric machine according to claim 1, wherein said power take-out means provides an output shaft on said casing and forms a rotating body in a rack, while said output shaft has a rotating body rack. A rotating electric machine characterized by forming a pinion gear that meshes with an output shaft and rotating the output shaft following the movement of the rotating body. 3. The rotating electric machine according to claim 1, wherein the power take-out means includes an output shaft provided on an outer diameter side of the casing and a liquid sealed therein, and a liquid turbine provided on the output shaft. A rotating electric machine, wherein an output shaft rotates following the movement of the rotating body. 4. The hollow cylindrical body is formed by bending into a ring shape.
Endless cylinder casing, and
Inside the casing so that it can move freely in the
A rotating body having a ring shape and a predetermined interval between the rotating body
And a plurality of permanent magnets provided outside the casing.
Wound around the circumference in a state adjacent to the ring direction
And a plurality of coils,
Forcibly moving means for performing forced rotation, and said rotation
To extract the induced current based on the forced movement of the body
A current extraction means provided on the coil and a
Each coil to detect the position of the permanent magnet facing the coil.
A rotating electric machine comprising: a rotating body position detecting means provided.