KR20120133977A - Axial reluctance rotating machine - Google Patents

Abstract

PURPOSE: An axial reluctance rotating device is provided to implement a high output by arranging a stator and a rotor in an axial direction. CONSTITUTION: A core is combined with one side and the other side of a housing. A rotor is combined with the core and includes tooth. A support shaft(150) is supported in the inner side of the core. A yoke is combined with the outer side of the support shaft. A stator(140) rotates the rotor.

Description

Axial Reluctance Rotator {AXIAL RELUCTANCE ROTATING MACHINE}

The present invention relates to an axial reluctance rotating machine.

In the reluctance rotating machine, teeth are formed in the rotor and the stator, respectively. The coil is wound around the stator, and the coil and the permanent magnet do not exist in the rotor, thereby simplifying the structure.

1 is a perspective view illustrating main parts of a conventional reluctance rotating machine, and this will be described.

As shown, the stator 10 includes a plurality of teeth 13 formed on the inner circumferential surface of the yoke 11, the yoke 11 and coils (not shown) wound around the teeth 13, respectively. do. Inside the stator 10, a rotor 20 having a core 21 and a plurality of teeth 23 formed on an outer circumferential surface of the core 21 is installed, and a rotating shaft 30 is coupled to the rotor 20. .

In the conventional reluctance rotating device as described above, the inner circumferential surface of the stator 10 facing the radial direction of the rotating shaft 30 and the outer circumferential surface of the rotor 20 face each other. Therefore, in order to obtain a high output, the effective cross-sectional area of the stator 10 and the rotor 20 should be increased by lengthening the lengths of the stator 10 and the rotor 20 in the longitudinal direction of the rotating shaft 30. As a result, the increase in output is weak compared to the increase in volume.

The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide an axial reluctance rotating device that can obtain a high output with a small volume by facing the stator and the rotor in the axial direction In providing.

An axial reluctance rotating device according to the present invention for achieving the above object, the housing; A ring-shaped core coupled to one side and the other side of the housing, respectively, a plurality of radially coupled to the core relative to the center of the core has a tooth (tooth) facing each other, and rotates with the housing A pair of flat plate-shaped rotors which are magnetic bodies; A support shaft having one side and the other side supported on an inner circumferential surface side of one of the cores and an inner circumferential surface side of another of the cores; A ring-shaped yoke coupled to the outer circumferential surface of the support shaft between the pair of rotors, first and second teeth opposing the teeth of one of the rotors and the teeth of the other rotor, respectively, are formed. And a plurality of poles radially coupled to the yoke with respect to the center of the yoke, coils wound on outer surfaces of the first tooth and the second tooth, respectively, and act as the rotor to operate the rotor. It includes a plate-shaped stator that is a magnetic material to rotate.

In addition, the axial reluctance rotating device according to the invention, the housing; A ring-shaped non-magnetic body coupled to one side and the other side of the housing, respectively, and a plurality of magnetic bodies that are opposed to each other by being coupled to the frame radially with respect to the center of the frame; A flat plate-shaped rotor that rotates with the housing; A support shaft having one side and the other side supported on an inner circumferential surface side of one of the frames and an inner circumferential surface side of another of the frames; A ring-shaped yoke coupled to the outer circumferential surface of the support shaft between the pair of rotors, first and second teeth opposing the teeth of one of the rotors and the teeth of the other rotor, respectively, are formed. And a plurality of poles radially coupled to the yoke with respect to the center of the yoke, coils wound on outer surfaces of the first tooth and the second tooth, respectively, and act as the rotor to operate the rotor. It includes a plate-shaped stator that is a magnetic material to rotate.

In addition, the axial reluctance rotating device according to the invention, the housing; A ring-shaped core coupled to one side side and the other side of the housing, a plurality of teeth coupled to the core to face each other radially with respect to the center of the core, and a coil wound around the tooth A pair of plate-shaped stators that are magnetic bodies; A rotating shaft having one side and the other side rotatably supported on an inner circumferential surface side of one of the cores and an inner circumferential surface side of the other of the cores;

A ring-shaped frame which is a non-magnetic material coupled to an outer circumferential surface of the rotation shaft between the pair of stators, one side and the other of which are press-fitted to the frame and the teeth of one of the stators and the teeth of the other stator, respectively It has a plurality of tooth cores that are opposite magnetic bodies, and includes a rotor that rotates in action with the stator.

In addition, the axial reluctance rotating device according to the invention, the housing; Ring-shaped frame, which is a nonmagnetic material coupled to one side side and the other side of the housing, respectively, a plurality of magnetic bodies that are coupled to the frame and are opposed to each other radially with respect to the center of the frame, the tooth A pair of flat ring-shaped stators having coils wound thereon; A rotating shaft having one side and the other side rotatably supported on one of the inner circumferential surface side of the frame and the inner circumferential surface side of the other of the frame; A ring-shaped frame that is a nonmagnetic material coupled to an outer circumferential surface of the rotation shaft between a pair of stators, and is press-fitted to the frame so that one side and the other face thereof face each other with the teeth of the stator and the teeth of the other stator, respectively. It has a plurality of tooth cores which are magnetic bodies, and includes a rotor that rotates in action with the stator.

In the axial reluctance rotating machine according to the present invention, since the surface of the rotor facing in the axial direction and the surface of the stator facing in the axial direction face each other, the effective cross-sectional area of the stator and the rotor affecting the output is in the axial cross-sectional area. to be. Therefore, there is an effect that a high output can be obtained even in a small volume.

The stator is disposed between the paired rotors, or the rotor is disposed between the paired stators. Therefore, there is an effect that a higher output can be obtained.

1 is a perspective view of main parts of a conventional reluctance rotating machine.
2 is a cross-sectional view of an axial reluctance rotating device according to a first embodiment of the present invention.
3 is a partially exploded perspective view of the rotor and stator shown in FIG.
4 is a partially exploded perspective view of a rotor and a stator of an axial reluctance rotating machine according to a second embodiment of the present invention.
5 is a cross-sectional view of an axial reluctance rotating machine according to a third embodiment of the present invention.
FIG. 6 is a partially exploded perspective view of the rotor and stator shown in FIG. 5; FIG.
7 is an exploded perspective view of a part of a rotor and a stator of an axial reluctance rotating machine according to a fourth embodiment of the present invention;

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are mutually exclusive, but need not be mutually exclusive. For example, certain shapes, specific structures, and features described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with the embodiments. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. The length, area, thickness, and shape of the embodiments shown in the drawings may be exaggerated for convenience.

Hereinafter, an axial reluctance rotating device according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1st Example

2 is a cross-sectional view of the axial reluctance rotating device according to the first embodiment of the present invention, Figure 3 is a partially exploded perspective view of the rotor and the stator shown in FIG.

As shown, the axial reluctance rotating device according to the first embodiment of the present invention includes a housing 110 which is formed in a cylindrical shape and rotates, the housing 110 is formed in a semi-cylindrical shape, respectively It has the 1st housing 111 and the 2nd housing 115. Support holes 112 and 116 are formed on the left side of the first housing 111, which is the left side of the housing 110, and on the right side of the second housing 115, which is the right side, for supporting the support shaft 150 to be described later. .

Inside the housing 110, a stator 140 and a support shaft 150 that rotate the rotor by working with the rotor and the rotor are installed.

The rotor has a first rotor 120 coupled to the left side of the housing 110 and a second rotor 130 coupled to the right side of the housing 110. Each of the first and second rotors 120 and 130 is formed in a flat ring shape to face each other, and a sheet of silicon steel sheets, which are magnetic bodies, are stacked.

In detail, the first rotor 120 is press-fitted into the core 121 radially with respect to the center of the flat ring-shaped core 121 and the core 121 coupled to the left side of the first housing 111. It has a plurality of teeth 125 combined. In addition, the second rotor 130 is a plurality of plate-shaped cores 131 coupled to the right side of the second housing 115 and a plurality of radially press-coupled to the cores 131 radially with respect to the center of the core 131. Has a tooth 135.

The cores 121 and 131 are formed by stacking sheets of silicon steel sheets which are magnetic bodies formed in a ring shape, and the teeth 125 and 135 are formed by stacking sheets of silicon steel sheets which are magnetic bodies. That is, the first rotor 120 and the second rotor 130 are the same, the teeth 125 of the first rotor 120 and the teeth 135 of the second rotor 130 are mutually To face.

Coupling grooves 122 and 132 are formed in the cores 121 and 131 from the outer circumferential surfaces of the cores 121 and 131 toward the inner circumferential surface, respectively, and teeth 125 and 135 are press-fitted in the coupling grooves 122 and 132, respectively. do. At this time, the insertion grooves 126 and 136 are formed at the side surfaces of the teeth 125 and 135, and one side and the other surface of the cores 121 and 131 forming the coupling grooves 122 and 132 in the insertion grooves 126 and 136. Each of these is inserted and caught. Since one surface and the other surface of the cores 121 and 131 forming the coupling grooves 122 and 132 are respectively inserted into the insertion grooves 126 and 136, the teeth 125 and 135 are separated in the axial direction of the support shaft 150. Is prevented. Thus, the teeth 125 and 135 are firmly press-fitted to the cores 121 and 131.

On the inner circumferential surface side of the cores 121 and 131, a left portion outer circumferential surface and a right portion outer circumferential surface of the support shaft 150 are respectively supported. In this case, a bearing 160 is interposed between the inner circumferential surface of the cores 121 and 131 and the outer circumferential surface of the support shaft 150 so that the rotor 110 can rotate smoothly.

The stator 140 has a yoke 141, a pole 143, a bobbin (not shown), and a coil 145, and is coupled to the outer peripheral surface of the central portion of the support shaft 150. That is, the stator 140 is coupled to the portion of the support shaft 150 between the first rotor 120 and the second rotor 130.

The yoke 141 is formed by laminating a sheet of silicon steel, which is a ring-shaped magnetic body, and is bonded to the outer circumferential surface of the support shaft 150, and the pole 143 is formed by laminating a sheet of silicon steel, which is a magnetic body, of the yoke 141. It is coupled to the yoke 141 radially to the center. One side and the other side of the pawl 143 protrude outward from one side and the other side of the yoke 141 to form the first tooth 143a and the second tooth 143b. Accordingly, the first tooth 143a faces the teeth 125 of the first stator 120, and the second tooth 143b faces the teeth 135 of the second stator 130.

For the firm coupling of the yoke 141 and the pole 143, the yoke 141 is formed with a coupling groove 141a from the outer circumferential surface toward the inner circumferential surface, and the coupling groove 141a on one side and the other side of the pole 143. One side and the other side of the yoke 141 forming the insertion groove 143c is formed. Therefore, the pawl 143 is prevented from escaping in the axial direction of the support shaft 150.

The bobbins are respectively coupled to surround the first and second teeth 143a and 143b, and coils 145 are wound around the bobbins, respectively.

Thus, when a current is applied to the coil 145, the rotor is rotated by the action of the stator 140 and the rotor, thereby rotating the housing 110. Alternatively, when the rotor is rotated by rotating the housing 110, current is generated in the coil 145 of the stator 140.

In the axial reluctance rotating device according to the first embodiment of the present invention, the surface of the rotor facing in the axial direction and the surface of the stator 140 facing in the axial direction are opposed to each other, and the first rotor 120 and the first rotor 120 are made to face each other. The stator 140 is disposed between the two rotors 130. Therefore, since the effective cross-sectional area of the stator 140 and the rotor affecting the output is the axial cross-sectional area, high output can be obtained with a small volume.

Second Example

4 is an exploded perspective view of a part of the rotor and the stator of the axial reluctance rotating machine according to the second embodiment of the present invention, and only the differences from FIG. 3 will be described.

As shown, the first and second rotors 220 and 230 have frames 221 and 231 formed of stainless or high-strength plastic, respectively, which are nonmagnetic materials. The coupling rails 222 are formed on one surface of the frames 221 and 231, respectively. , Not shown).

The coupling rail 222 (not shown) is coupled to the teeth (225, 235) formed by stacking a sheet of silicon steel, which is a magnetic material, and one surface of the teeth (225, 235) are press-coupled to the coupling rails (222, not shown), respectively. Coupling grooves 226 and 236 are formed, respectively. Coupling rail 222 (not shown) is coupled to the core (221, 231) by a fastening member (not shown).

The lower side of the adjacent teeth 225 are in contact with each other, and the lower side of the adjacent teeth 235 is in contact with each other so that a magnetic path can be formed between the teeth 225 and between the teeth 235. Do.

In addition, the coupling grooves 226 and 266 and the coupling rail 222 (not shown) are formed in a “T” shape corresponding to each other. Thus, the first and second rotors 220 and 230 are prevented from deviating in the axial direction of the support shaft 150 (see FIG. 2).

The other configuration is the same as that of the first embodiment of the present invention.

The axial reluctance rotating device according to the second embodiment of the present invention can also obtain a high output, like the axial reluctance rotating device according to the first embodiment.

Third Example

FIG. 5 is a cross-sectional view of the axial reluctance rotating device according to the third embodiment of the present invention, and FIG. 6 is a partially exploded perspective view of the rotor and the stator shown in FIG. 5.

As shown, the axial reluctance rotating device according to the third embodiment of the present invention includes a housing 310 formed in a cylindrical shape, and the housings 310 are each formed in a semi-cylindrical shape and coupled to each other. 311 and the second housing 315. Support holes 312 and 316 are formed on the left side of the first housing 311 which is the left side of the housing 310 and the right side of the second housing 315 which is the right side.

The housing 310 is provided with a stator, a rotor 340 and a rotating shaft 350 that rotate with the stator.

The stator has a first stator 320 coupled to the left side of the first housing 310 and a second stator 330 coupled to the right side of the second housing 310. That is, the first stator 320 and the second stator 330 are formed identically to face each other.

The first and second stators 320 and 320 have cores 321 and 331, teeth 323 and 333, bobbins (not shown) and coils 325 and 335, respectively.

The core 321 is coupled to the left side of the first housing 311. The core 321 is formed in a ring shape and is formed by stacking sheet silicon steel sheets, which are magnetic bodies. The teeth 323 are press-fit to the core 321 radially about the center of the core 321. The teeth 323 are formed by laminating sheet silicon steel sheets which are magnetic bodies. The bobbin is coupled to surround the outer surface of the tooth 323, and the coil 325 is wound around the bobbin.

The core 331 is coupled to the right side of the second housing 315. The core 331 is formed in a ring shape and is formed by stacking a sheet of silicon steel sheet, which is a magnetic material. The teeth 333 are press-fit to the core 331 radially about the center of the core 331. The teeth 333 are formed by stacking sheets of silicon steel sheets, which are magnetic bodies. The bobbin is coupled in a form surrounding the outer surface of the tooth 333, and the coil 335 is wound around the bobbin.

Coupling grooves 321a and 331a are formed in the cores 321 and 331 from the outer circumferential surfaces of the cores 321 and 331 toward the inner circumferential surface, and teeth 323 and 333 are press-fitted in the coupling grooves 321a and 331a, respectively. do. At this time, the insertion grooves 323a and 333a are formed at the side surfaces of the teeth 323 and 333, and one side and the other surface of the cores 321 and 331 forming the coupling grooves 321a and 331a in the insertion grooves 323a and 333a. Are inserted respectively. Since the insertion grooves 323a and 333a take one side and the other side of the core, respectively, the teeth 323 and 333 are prevented from being separated in the axial direction of the rotation shaft 350. Accordingly, the teeth 323 and 333 are firmly press-fitted to the cores 321 and 331.

On the inner circumferential surface side of the cores 321 and 331, the left outer peripheral surface and the right outer peripheral surface of the support shaft 350 are respectively supported. In this case, a bearing 360 is interposed between the inner circumferential surface of the cores 321 and 331 and the outer circumferential surface of the rotation shaft 350 to allow the rotor 310 to rotate smoothly.

The rotor 340 has a frame 341 and a plurality of tooth cores 345 inserted into and coupled to the frame 341. The frame 341 is formed of stainless steel or high-strength plastic, which is a nonmagnetic material, and the tooth core 345 is formed by stacking sheets of silicon steel, which are magnetic materials.

In the frame 341, a coupling hole 342 through which the tooth core 345 is press-fitted is formed, and one side and the other side of the tooth core 345 are teeth 323 and a second rotor of the first rotor 320. Respectively face the teeth 333 of 330.

Thus, when current is applied to the coils 325 and 335, the rotor 340 rotates by the action of the stator and the rotor 340. Alternatively, when the rotor 340 is rotated by rotating the rotation shaft 350, current is generated in the coils 325 and 335 of the first and second stators 320 and 330.

In the axial reluctance rotating device according to the third embodiment of the present invention, the surface of the stator facing the axial direction and the surface of the rotor 340 facing the axial direction face each other, and the first stator 320 and the second stator 320 face each other. The rotor 340 is disposed between the stators 330. Therefore, as with the axial reluctance rotating device according to the first embodiment of the present invention, high output can be obtained.

Fourth Example

7 is an exploded perspective view of a part of the rotor and the stator of the axial reluctance rotating machine according to the fourth embodiment of the present invention, and only the differences from FIG. 6 will be described.

As shown, the first and second stators 420 and 430 have frames 421 and 431 formed of non-magnetic material made of stainless steel or high strength plastic, and coupling rails 421a (not shown) are formed on one surface of the frames 421 and 431. ) Are formed respectively. The coupling rails 421a (not shown) are coupled to the teeth 423 and 433 formed by stacking a sheet of silicon steel, which is a magnetic material. The surfaces of the teeth 423 and 433 are press-fitted to the coupling rails 421a (not shown), respectively. Coupling grooves 423a and 433a are respectively formed. The coupling rail 421a (not shown) is coupled to the cores 421 and 431 by a fastening member (not shown).

In order for a magnetic path to be formed between the teeth 423 and between the teeth 433, the lower sides of the adjacent teeth 423 contact each other, and the lower sides of the adjacent teeth 433 preferably contact each other. Do.

In addition, the coupling grooves 423a and 433a and the coupling rail 421a (not shown) are formed in a “T” shape corresponding to each other. Thus, the teeth 423, 433 of the first and second stators 420, 430 are prevented from deviating in the axial direction of the rotation shaft 350 (see FIG. 5).

The other configuration is the same as that of the third embodiment of the present invention.

The axial reluctance rotating device according to the fourth embodiment of the present invention can also obtain a high output, like the axial reluctance rotating device according to the third embodiment.

In the above, the present invention has been described in accordance with the embodiments of the present invention, but those skilled in the art to which the present invention belongs, the changes and modifications within the scope without departing from the spirit of the present invention. Of course.

110: Housing
120,130: 1st and 2nd rotor
140: stator
150: support shaft

Claims (10)

housing;
A ring-shaped core coupled to one side and the other side of the housing, respectively, a plurality of radially coupled to the core relative to the center of the core has a tooth (tooth) facing each other, and rotates with the housing A pair of flat plate-shaped rotors which are magnetic bodies;
A support shaft having one side and the other side supported on an inner circumferential surface side of one of the cores and an inner circumferential surface side of another of the cores;
A ring-shaped yoke coupled to the outer circumferential surface of the support shaft between the pair of rotors, first and second teeth opposing the teeth of one of the rotors and the teeth of the other rotor, respectively, are formed. And a plurality of poles radially coupled to the yoke with respect to the center of the yoke, coils wound on outer surfaces of the first tooth and the second tooth, respectively, and act as the rotor to operate the rotor. An axial reluctance rotating device, comprising: a flat ring-shaped stator that is a rotating magnetic body. The method of claim 1,
The core is provided with a coupling groove in which the teeth of the rotor are press-fitted toward the inner circumferential surface side from the outer circumferential surface of the core, one side of the core forming the coupling groove on one side and the other side of the teeth of the rotor and Axial reluctance rotating device, characterized in that the other side is inserted and respectively formed insertion grooves to prevent the teeth of the rotor from deviating in the axial direction of the support shaft. housing;
A ring-shaped non-magnetic body coupled to one side and the other side of the housing, respectively, and a plurality of magnetic bodies that are opposed to each other by being coupled to the frame radially with respect to the center of the frame; A flat plate-shaped rotor that rotates with the housing;
A support shaft having one side and the other side supported on an inner circumferential surface side of one of the frames and an inner circumferential surface side of another of the frames;
A ring-shaped yoke coupled to the outer circumferential surface of the support shaft between the pair of rotors, first and second teeth opposing the teeth of one of the rotors and the teeth of the other rotor, respectively, are formed. And a plurality of poles radially coupled to the yoke with respect to the center of the yoke, coils wound on outer surfaces of the first tooth and the second tooth, respectively, and act as the rotor to operate the rotor. An axial reluctance rotating device, comprising: a flat ring-shaped stator that is a rotating magnetic body. The method of claim 3,
The shaft is characterized in that the coupling rail of the "T" shape is coupled to one surface of the frame, the coupling groove is formed in a shape corresponding to the coupling rail on the one surface of the teeth of the rotor is press-fitted to the coupling rail Directional reluctance rotating machine. The method according to claim 2 or 4,
The yoke is formed with a coupling groove in which the pawl is press-fitted toward the inner circumferential surface side from the outer circumferential surface of the yoke, and one side and the other side of the yoke that form a coupling groove of the yoke are inserted into and coupled to one side and the other side of the pole, respectively. And an insertion groove is formed to prevent the pawl from deviating in the axial direction of the support shaft. housing;
A ring-shaped core coupled to one side side and the other side of the housing, a plurality of teeth coupled to the core to face each other radially with respect to the center of the core, and a coil wound around the tooth A pair of plate-shaped stators that are magnetic bodies;
A rotating shaft having one side and the other side rotatably supported on an inner circumferential surface side of one of the cores and an inner circumferential surface side of the other of the cores;
A ring-shaped frame which is a non-magnetic material coupled to an outer circumferential surface of the rotation shaft between the pair of stators, one side and the other of which are press-fitted to the frame and the teeth of one of the stators and the teeth of the other stator, respectively An axial reluctance rotating device having a plurality of tooth cores that are opposing magnetic bodies and comprising a rotor that rotates in response to the stator. The method according to claim 6,
The core is provided with a coupling groove in which the teeth of the stator are press-fitted toward the inner circumferential surface side from the outer circumferential surface of the core, and one side and the other surface of the core forming the coupling groove on one side and the other side of the tooth of the stator. Axial reluctance rotating device, characterized in that each insertion groove is formed to prevent the teeth of the stator from deviating in the axial direction of the support shaft. housing;
Ring-shaped frame, which is a nonmagnetic material coupled to one side side and the other side of the housing, respectively, a plurality of magnetic bodies that are coupled to the frame and are opposed to each other radially with respect to the center of the frame, the tooth A pair of flat ring-shaped stators having coils wound thereon;
A rotating shaft having one side and the other side rotatably supported on one of the inner circumferential surface side of the frame and the inner circumferential surface side of the other of the frame;
A ring-shaped frame that is a nonmagnetic material coupled to an outer circumferential surface of the rotation shaft between a pair of stators, and is press-fitted to the frame so that one side and the other face thereof face each other with the teeth of the stator and the teeth of the other stator, respectively. An axial reluctance rotating device having a plurality of tooth cores, which are magnetic bodies, and comprising a rotor that rotates in response to the stator. 9. The method of claim 8,
A coupling rail having a “T” shape is coupled to one surface of the frame of the stator, and one surface of the tooth of the stator has a coupling groove formed in a shape corresponding to the coupling rail to press-fit the coupling rail. Axial reluctance rotating machine. The method according to claim 7 or 9,
And an engaging hole in which the tooth core of the rotor is press-coupled to the frame of the rotor.

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