JP2008021599A - Rotating type-operation device, and switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that since a conventional rotating type-operation device has only two states of a shut-down state and an input state as the states to be taken as rotating type-operation, in the case a switch to be driven by the rotating type-operation device is able to take three states of the shut-down state, the input state, and a grounded state, a switching operation between these three states can not be carried out, and moreover, utilization of a spring is inevitable in carrying out rotation movement of a rotating iron core in the conventional rotating type-operation device, and that a structure of that rotating type-operation device has become all the more complicated. <P>SOLUTION: The device includes three or more coils arranged with a fixed spacing in the peripheral direction, the fixed iron core having a permanent magnet installed between the coils, and a rotating iron core which is arranged inside the fixed iron core and which is rotated and moves within a range where the coils are arranged, and by exciting the coils in the driving direction of the rotating iron core, a magnetic flux created by the permanent magnet is counteracted, the rotating iron core is made to be sequentially moved and the rotating iron core is made to be retained at respective positions of the coils. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a rotary operation device and a switch for driving a switch used in a power transmission / distribution system.

A conventional rotary operation device for driving a switch has a fixed magnetic core having a magnetic pole made of a permanent magnet at the center, and electromagnetic coils for making and breaking on both sides, and two protrusions. It consists of a rotating iron core. The rotating iron core is disposed inside the fixed iron core, and the rotational movement is limited so that the rotating iron core can be rotated within a certain angle range by connecting the end of the fixed iron core and the protruding portion of the rotating iron core. When the rotary core is in the position where the switch is shut off, energizing the closing coil reduces the magnetic force that holds the rotary core, and the spring provided between the switch and the rotary operating device With the restoring force, the rotary iron core is rotated and moved to the position where the switch is put into the closing state. On the other hand, when the rotary iron core is in the position where the switch is turned on, the magnetic force that holds the rotary iron core is reduced by exciting the interrupting coil, and it is provided between the switch and the rotary operating device. With the restoring force of the spring, the rotating iron core is rotated to a position where the switch is shut off. As described above, the two states of the shut-off state and the closing state can be switched by controlling the restoring force and magnetic force of the spring (see, for example, Patent Document 1).

JP 2001-297912 A

Since the conventional rotary operation device is configured as described above, there are only two states that can be taken as the rotary operation, that is, a shut-off state and a closing state. For this reason, when the switch driven by the rotary operation device can take, for example, three states of a shut-off state, a closing state, and a grounding state, the switching operation cannot be performed between these three states. It was.

In addition, the conventional rotary operation device requires the use of a spring when rotating the rotary iron core, and the structure of the rotary operation device is complicated accordingly.

The present invention has been made in order to solve the problem, and can rotate the rotating core without using a spring while holding the rotating core at three or more different positions. An object is to obtain a mold operating device and a switch.

A rotary operating device according to the present invention includes a fixed iron core having three or more coils arranged at predetermined intervals in the circumferential direction and permanent magnets provided between the coils, and an inner side of the fixed iron core. A rotating iron core that is rotatably provided, and sequentially moving the rotating iron core to the position of the coil by the magnetic action of the magnetic flux produced by the coil and the permanent magnet by exciting one or more coils; and The moving position is held.

In addition, the rotary operation device according to the present invention includes a fixed iron core having three or more coils arranged at a predetermined interval in the circumferential direction, and is provided rotatably inside the fixed iron core, and has a permanent magnet on the outer periphery. The rotating iron core is sequentially moved to the position of the coil by the magnetic action of the magnetic flux generated by the coil and the permanent magnet by exciting one or a plurality of coils, and is moved to the moving position. It is intended to be retained.

According to the present invention, it is possible to stably hold the rotating iron core at three or more different positions by rotating the rotating iron core only by the magnetic action of the permanent magnet and the coil without using a spring. Thereby, it is possible to realize a rotary operation device having a simpler mechanism, high reliability, and a wide application range.

Embodiment 1 FIG.
A rotary operation device according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a rotary operation device according to Embodiment 1 of the present invention. The rotary operation device 100 includes a fixed iron core 101 and a rotary iron core 102 disposed inside the fixed iron core 101. The fixed iron core 101 is composed of a fixed iron core 101 a and a fixed iron core 101 b having the same shape, both of which have fan-shaped concave portions and are arranged to face each other via a magnetic gap 103. The rotating core 102 is composed of a rotating core 102 a and a rotating core 102 b having the same shape with fan-shaped recesses, and the rotating core 102 a and the rotating core 102 b are coupled point-symmetrically around the rotation center 104 inside the fixed core 100. ing. The rotating core 102 can be rotated integrally within the recess inside the fixed core 101 with the rotation center 104 as an axis.

Around the fixed iron core 101a, the first coil 105a, the second coil 106a, the third coil 107a, the first permanent magnet 108a, and the second permanent magnet 109a are arranged at positions where the coil and the permanent magnet are alternately arranged. It is installed to become. The first permanent magnet 108a has an N pole on the side facing the rotation center 104, and the second permanent magnet 109a has an S pole on the side facing the rotation center 104. Further, the rotating core 102a has concave portions 110a and 111a in the circumferential direction, and the fixed core 101a has concave portions 112a and 113a in the radial direction.

The rotation area of the rotary core 102a is limited to a fan-shaped recess inside the fixed core 101a. Here, the position where the rotating iron core 102a faces the concave shaped portion 112a is the first position, the position facing the second coil 106a is the second position, and the position facing the concave shaped portion 113a is the third position. I will say. FIG. 1 shows a state in which the rotating iron core 102a is held at the first position.

The first coil 105b, the second coil 106b, and the third coil 107b provided on the fixed iron core 101b, the first permanent magnet 108b, the second permanent magnet 109b, and the concave-shaped portion provided on the rotating iron core 102b. Since 110b and 111b have the same configuration, description thereof will be omitted.

Next, the rotation operation of the rotating iron core 102a inside the fixed iron core 101a will be described. Since the rotating operation of the rotating core 102b inside the fixed core 101b is the same, the description thereof is omitted. First, it is assumed that the rotating iron core 102a is held at the first position by the magnetic flux ΦPM1 _generated by the first permanent magnet 108a. In this state, none of the first coil 105a, the second coil 106a, and the third coil 107a is excited.

In order to move the rotating core 102a from the first position to the second position, the second coil 106a is excited. When exciting the second coil 106a, with the magnetic flux [Phi _Coil2A circulating the first inner coil 105a of the fixed iron core 101a and the second coil 106a inside the rotating core 102a is generated in the direction to cancel the magnetic flux [Phi _PM1, the The magnetic flux Φ _coil2B that circulates between the fixed iron core 101a and the rotating iron core 102a inside the second coil 106a is generated in the same direction as the magnetic flux Φ _coil2A . At this time, if the second coil 106a is excited so that the magnetic flux Φ _coil2B satisfies the relational expression of Φ _PM1 −Φ _coil2A <Φ _coil2B , the rotating iron core 102a rotates in the direction of the second position. When the rotating core 102a moves away from the first position, the magnetic flux _ΦPM1 decreases, and the attractive force for returning the rotating core 102a to the first position decreases. Note that the direction of the magnetic flux Φ _coil2B is the same as the magnetization direction of the first permanent magnet 108a and the second permanent magnet 109a, so the permanent magnet is not demagnetized.

FIG. 2 is a diagram illustrating a state in which the rotating iron core 102a has moved to the second position. When the rotary core 102a is moved to the position of the second position, in addition to the aforementioned magnetic flux [Phi _Coil2B, magnetic flux [Phi _PM12 by the first permanent magnet 108a and the second permanent magnets 109a acts. The magnetic flux [Phi _PM12 is the flux [Phi _Coil2B the same path in the same direction, the force for attracting the rotating core 102a to the second position acts. The rotary core 102a is returned by the second position overshooting the magnetic flux [Phi _PM12, there will be still in the second position after the time oscillation, the second position by the concave portion 110a, 111a provided in the rotary core Since the suction force for holding at the position can be increased, the vibration motion of the rotating iron core 102a can be suppressed.

Since the rotation core 102a is the flux [Phi _PM12 be stopped the excitation of the second coil 106a while still in the second position continues to remain, the rotating core 102a to the second position only by the suction force of the magnetic flux [Phi _PM12 The held state can be maintained.

Note that only the second coil 106a is excited when the rotary core 102a is moved from the first position to the second position. However, the second coil 106a and the third coil 107a may be excited simultaneously. . In this case, if the magnetic flux generated by the third coil 107a is too large, the rotating iron core 102a reaches the third position. To prevent this, time is required at the timing of exciting the second and third coils 106a and 107a. The first coil 105a may be excited at a delayed timing.

Next, the movement of the rotating core 102a from the second position to the third position will be described with reference to FIG. In FIG. 2, the rotating iron core 102a is held at the second position by the magnetic flux ΦPM12 _generated by the first permanent magnet 108a and the second permanent magnet 109a. In this state, none of the first, second, and third coils 105a, 106a, 107a is excited. When the third coil 107a is excited in this state, the magnetic flux Φ _coil3A that goes around the fixed iron core 101a and the rotating iron core 102a in the second and third coils 106a and 107a and at the third position cancels the magnetic flux Φ _PM12 . The magnetic flux Φ _coil3B is generated in the same direction as the magnetic flux Φ _coil3A and circulates around the fixed core 101a and the rotating core 102a in the third coil 107a and the third position portion.

Accordingly, since the attractive force for rotating the rotary core 102a by the magnetic flux Φ _coil3A + Φ _coil3B to the third position is larger than the attractive force for holding the rotary core 102a in the second position, the rotary core 102a is 3 in the direction of position. When the rotary core 102a reaches the third position, the magnetic flux [Phi _PM2 orbiting the second permanent magnets 109a and the fixed iron core 101a rotating core 102a, it rotates core 102a is held at the third position. Since the rotation core 102a is the flux [Phi _PM2 be stopped the excitation of the third coil 107a while still in the third position continues to remain, the rotating core 102a to the third position only by the suction force of the magnetic flux [Phi _PM2 The held state can be maintained.

  Thus, by controlling the excitation of the first coil 105a, the second coil 106a, and the third coil 107a, the rotating core 102a is moved to the first position, the second position, and the third position. Can be moved sequentially. When the rotary core 102a is sequentially moved from the third position to the second position and the first position, a procedure reverse to the above-described procedure may be performed.

As described above, the rotary operating device according to the first embodiment can rotate and rotate the rotating iron core only by the magnetic action of the permanent magnet and the coil without using the spring, and the rotating iron core can be moved to three different positions. It can be held stably. Thereby, it is possible to realize a rotary operation device having a simpler mechanism, high reliability, and a wide application range.

In the above description, the fixed iron core has two permanent magnets and three coils. However, the fixed iron core has three or more permanent magnets, and the fixed iron core has four coils. You may make it the number of pieces or more and can hold | maintain a rotating iron core in four or more positions.

Embodiment 2. FIG.
A rotary operation device according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 3 is a diagram showing the configuration of the rotary operation device according to the second embodiment of the present invention. 3, parts that are the same as or correspond to those in FIG. 1 are given the same reference numerals, and descriptions thereof are omitted. The rotary operating device 100 according to the first embodiment has the first permanent magnets 108a and 108b and the second permanent magnets 109a and 109b in the fixed iron cores 101a and 101b, whereas the rotation according to the second embodiment. The mold operating device 200 is different in that the permanent magnets 201a and 201b are provided only on the rotary cores 102a and 102b. The permanent magnet 201a is disposed between the concave shape portion 110a and the concave shape portion 111a provided on the rotating iron core 102a so as to face the fixed iron core 101a. The permanent magnet 201 a has an N pole on the side facing the rotation center 104. The permanent magnet 201b is similarly disposed on the rotating iron core 102b.

Next, the rotation operation of the rotating iron core 102a inside the fixed iron core 101a will be described. Since the rotating operation of the rotating core 102b inside the fixed core 101b is the same, the description thereof is omitted. First, it is assumed that the rotating iron core 102a is held at the first position by the magnetic flux Φ _{PMA generated} by the permanent magnet 201a. In this state, none of the first coil 105a, the second coil 106a, and the third coil 107a is excited.

In order to move the rotating core 102a from the first position to the second position, the second coil 106a is excited. When the second coil 106a is excited, a magnetic flux Φ _coil2A that goes around the fixed iron core 101a and the second coil 106a inside the first coil 105a and the rotating iron core 102a is generated in a direction that cancels the magnetic flux Φ _PMA, and The magnetic flux Φ _coil2B that circulates between the fixed iron core 101a and the rotating iron core 102a inside the second coil 106a is generated in the same direction as the magnetic flux Φ _coil2A . At this time, if the second coil 106a is excited so that the magnetic flux Φ _coil2B satisfies the relational expression Φ _PMA −Φ _coil2A <Φ _coil2B , the rotating iron core 102a rotates in the direction of the second position. When the rotating core 102a moves away from the first position, the magnetic flux Φ _PMA decreases, and the attractive force by the magnetic flux Φ _{PMA that} attempts to return the rotating iron core 102a to the first position decreases. Since the direction of the magnetic flux Φ _coil2B is the same as the direction of magnetization of the permanent magnet 201a, the permanent magnet is not demagnetized.

FIG. 4 is a view showing a state in which the rotating iron core 102a has moved to the second position. When the rotating core 102a moves to the second position, a magnetic flux Φ _PMB that circulates between the fixed iron core 101a and the rotating iron core 102a inside the second coil 106 is generated in addition to the magnetic flux Φ _coil2B described above. Since the magnetic flux Φ _PMB is in the same direction along the same path as the magnetic flux Φ _coil2B , a force that _attracts the rotating iron core 102a to the second position acts. Further, if the rotating core 102a passes the second position too much, it is returned by the magnetic flux Φ _PMB, and after being vibrated for a certain period of time, it stops at the second position. However, the second position is determined by the concave portions 110a and 111a provided on the rotating core. Since the suction force for holding at the position can be increased, the vibration motion of the rotating iron core 102a can be suppressed.

Since the rotation core 102a is the flux [Phi _PMB be stopped the excitation of the second coil 106a while still in the second position continues to remain, the rotating core 102a to the second position only by the suction force of the magnetic flux [Phi _PMB The held state can be maintained.

Note that only the second coil 106a is excited when the rotary core 102a is moved from the first position to the second position. However, the second coil 106a and the third coil 107a may be excited simultaneously. . In this case, if the magnetic flux generated by the third coil 107a is too large, the rotating iron core 102a reaches the third position. To prevent this, time is required at the timing of exciting the second and third coils 106a and 107a. The first coil 105a may be excited at a delayed timing.

Next, the movement of the rotating iron core 102a from the second position to the third position will be described with reference to FIG. In FIG. 4, the rotating iron core 102a is held at the second position by the fixed iron core 101a inside the second coil 106a formed by the permanent magnet 201a and the magnetic flux Φ _PMB that goes around the rotating iron core 102a. In this state, none of the first, second, and third coils 105a, 106a, 107a is excited. When the third coil 107a is excited in this state, the magnetic flux Φ _coil3A that goes around the fixed iron core 101a and the rotating iron core 102a in the second and third coils 106a and 107a and at the third position cancels the magnetic flux Φ _PMB . The magnetic flux Φ _coil3B is generated in the same direction as the magnetic flux Φ _coil3A and circulates around the fixed core 101a and the rotating core 102a in the third coil 107a and the third position portion.

Accordingly, since the attractive force for rotating the rotary core 102a by the magnetic flux Φ _coil3A + Φ _coil3B to the third position is larger than the attractive force for holding the rotary core 102a in the second position, the rotary core 102a is 3 in the direction of position. When the rotating core 102a reaches the third position, the rotating core 102a is moved to the third position by the permanent magnet 201a, the fixed core 101a inside the third coil 107a, and the magnetic flux Φ _PMC (not shown) that circulates around the rotating core 102a. Held in the position. Since the rotation core 102a is the flux [Phi _PMC be stopped the excitation of the third coil 107a while still in the third position continues to remain, the rotating core 102a to the third position only by the suction force of the magnetic flux [Phi _PMC The held state can be maintained.

Thus, by controlling the excitation of the first coil 105a, the second coil 106a, and the third coil 107a, the rotating core 102a is moved to the first position, the second position, and the third position. Can be moved sequentially. When the rotary core 102a is sequentially moved from the third position to the second position and the first position, a procedure reverse to the above-described procedure may be performed.

As described above, the rotary operating device according to the second embodiment can rotate and rotate the rotating iron core only by the magnetic action of the permanent magnet and the coil without using the spring, and the rotating iron core can be moved to three different positions. It can be held stably. Further, since the number of necessary permanent magnets can be reduced as compared with the rotary operation device according to the first embodiment, the rotary operation device can be realized at a lower cost.

In the above description, the structure in which the fixed iron core has three coils is shown. However, the number of coils in the fixed iron core is set to four or more so that the rotating iron core can be held at four or more positions. Also good.

In the above description, the rotary core 102a is provided with the concave portion 110a and the concave portion 111a. In addition to this, the portion between the coil 105a and the coil 106a of the fixed core 101a and the coil 106a of the fixed core 101a are provided. You may make it provide a concave-shaped part in the part between the coils 107a, respectively. Thereby, the suction | attraction force holding a rotating iron core can further be increased.

Embodiment 3 FIG.
A rotary operation device according to Embodiment 3 of the present invention will be described with reference to FIG. A rotary operation device 500 according to the third embodiment is configured such that a rotary shaft 501 is attached to the rotation center 104 of the rotary operation device 100 according to the first embodiment, and a circular rotary plate 502 having a radius R1 is connected to the rotary shaft 501, An auxiliary spring 503 and an auxiliary spring 504 functioning as an operating mechanism for applying a rotational force to the rotating iron core 102 are attached to the rotating disk 502. A rotating disk 505 is connected to the other end portion of the rotating shaft 501, and a rotating conductor 506 having a radius R2 is connected to the rotating disk 505.

Next, the operation will be described. Although the detailed structure of the rotary operation device 500 is omitted in FIG. 5, the structure of the parts other than those described above is the same as that in FIG. 1. To do. FIG. 5 shows a case where the rotating iron core 102 is in the second position.

First, it is assumed that the rotating iron core 102 is located at the first position. At this time, the auxiliary spring 503 is compressed. Figure 6 is the suction force F _PM1, F _PM2 suction force by the second permanent magnets 109, and the repulsive force F _SP1 by the auxiliary spring 503, rotating core and a repulsive force F _SP2 by the auxiliary spring 504 with a first permanent magnet 108 This is illustrated with respect to the position 102. As can be seen from FIG. 6, in the state where the rotary core 102 is in the first position, the repulsive force F by the auxiliary spring 503 compressed by the attraction force F _PM1 by the first permanent magnet 108 provided on the fixed core 101. _{Since it is} larger than _SP1 , the rotating iron core 102 is held in the first position.

Next, as described in the first embodiment, when the rotary iron core 102 is rotationally moved to the second position, the turntable 502 also rotates in conjunction with it. When the rotary core 102 is rotationally moved, the repulsive force of the auxiliary spring 503 applies a rotational force to the rotary core 102 through the rotary disk 502, so that the rotational speed of the rotary core 102 can be increased.

Next, when the rotary iron core 102 is rotationally moved to the third position, the rotary disk 502 rotates in conjunction with the auxiliary spring 504 and is compressed. As shown in FIG. 6, a repulsive force F _SP2 is generated by the auxiliary spring 504 as the position of the rotating core 102 approaches the third position, but when the position of the rotating core 102 further approaches the third position, the permanent magnet _Therefore, the suction force F _PM2 becomes dominant. In the state where the position of the rotating core 102 is in the third position, the attractive force F _PM2 by the second permanent magnet 109 provided on the fixed core 101 is larger than the repulsive force F _SP2 by the compressed auxiliary spring 504, so The iron core 102 is held at the third position.

The rotating disk 505 and the rotating conductor 506 rotate with the rotational movement of the rotating shaft 501 in conjunction with the rotational movement of the rotating disk 502. At this time, the torque acting on the rotating conductor 506 can be adjusted by the value of the ratio (R2 / R1) of the radius R1 of the rotating disk 502 and the radius R2 of the rotating conductor 506.

In addition, when the rotary core 102 is sequentially moved from the third position to the second position and the first position, the reverse procedure described above may be performed, and in conjunction with the rotary motion of the rotary core 102, the rotary disk 502, the rotating disk 505, and the rotating conductor 506 rotate.

As described above, the rotary operating device according to the third embodiment includes a plurality of circular rotary discs having different radii, and the auxiliary spring is attached to one end of the rotary disc, so that the auxiliary spring is rotated when the rotary iron core is rotated. Therefore, the auxiliary spring acts as an operating mechanism for applying a rotational force to the rotating core, and the rotational speed of the rotating core can be increased. Further, the torque acting on the rotating conductor 506 can be adjusted by the ratio of the radii R1 and R2.

Instead of the rotary operating device 100, the rotary operating device 200 according to the second embodiment may be used, and the rotary operating device 200 may be provided with the rotating disks 501 and 502.

Further, as an operating mechanism for applying a rotational force to the rotating iron core, a mechanism by hydraulic control may be provided instead of the auxiliary spring.

Embodiment 4 FIG.
A switch equipped with the rotary operation device of the present invention will be described with reference to FIG. The switch according to the fourth embodiment is connected to the rotation center shaft of the rotary operating device 100 according to the first embodiment and is provided with a rotating conductor 701 and a fixed conductor 702, and the rotating conductor 701 is a rotating iron core of the rotary operating device 100. It rotates around the axis of rotation along with the rotational movement. When the rotating iron core is located at the first position, the second position a, and the third position, the rotating conductor 701 comes into contact with the terminal 703, the terminal 704, and the terminal 705, respectively. The terminal 703 is connected to another device (not shown) (referred to as device A). Further, no other device is connected to the terminal 704. The terminal 705 is connected to the ground. On the other hand, one end of the fixed conductor 702 is fixed to the rotation center shaft, and the other end is fixed to the terminal 706. The terminal 706 is connected to another device (not shown) (device B).

Next, the operation will be described. When the rotary iron core of the rotary operation device 100 is located at the third position, a signal path is formed to connect the terminal 705 and the terminal 706 via the rotary conductor 701 and the fixed conductor 702, so that the terminal 706 is grounded. Then, the device B is grounded. Further, when the rotating iron core is located at the second position, a signal path that connects the terminal 704 and the terminal 706 via the rotating conductor 701 and the fixed conductor 702 is formed, so that the terminal 706 is opened and the device B No signal is input to, and the circuit is cut off. On the other hand, when the rotating iron core is located at the first position, a signal path that connects the terminal 703 and the terminal 706 via the rotating conductor 701 and the fixed conductor 702 is formed. As a result, the device B is turned on.

As described above, the switch according to the fourth embodiment can switch between the three states of the grounding state, the shut-off state, and the closing state by rotating the rotary core of the rotary operation device 100.

Note that a switch that performs the same operation can be obtained by using the rotary operation device 200 according to the second embodiment instead of the rotary operation device 100.

It is a figure which shows the structure of the rotary type operating device by Embodiment 1 of this invention. It is a figure explaining operation | movement of the rotary type operating device by Embodiment 1 of this invention. It is a figure which shows the structure of the rotary type operating device by Embodiment 2 of this invention. It is a figure explaining operation | movement of the rotary type operating device by Embodiment 2 of this invention. It is a figure which shows the structure of the rotary type operating device by Embodiment 3 of this invention. It is a figure explaining operation | movement of the rotary type operating device by Embodiment 3 of this invention. It is a figure which shows the structure of the switch by Embodiment 4 of this invention.

Explanation of symbols

100 ·············································································································· Magnetic core 104 ·············· First coil 106 Second coil 107 Third coil 108 First permanent magnet 109 First 2 permanent magnets 110, 111, 112, 113..

Claims (7)

A fixed iron core having three or more coils arranged at predetermined intervals in the circumferential direction and permanent magnets provided between the coils, and a rotary iron core provided rotatably inside the fixed iron core Prepared,
By exciting one or more of the coils, the rotating iron core is sequentially moved to the position of the coil by the magnetic action of the magnetic flux generated by the coil and the permanent magnet, and the moving position A rotary type operating device characterized by being held in the head. A fixed iron core having three or more coils arranged at a predetermined interval in the circumferential direction, and a rotary iron core provided with a permanent magnet on the outer periphery thereof, provided rotatably inside the fixed iron core,
By exciting one or more of the coils, the rotating iron core is sequentially moved to the position of the coil by the magnetic action of the magnetic flux generated by the coil and the permanent magnet, and the moving position A rotary type operating device characterized by being held in the head. The rotary operating device according to claim 1, wherein the rotary iron core has a recess on a surface facing the coil. The rotary operating device according to claim 2, wherein the fixed iron core has a recess in a circumferential direction facing the rotary iron core. The rotary operating device according to any one of claims 1 to 4, wherein a rotating iron core is driven by exciting a plurality of coils simultaneously. 6. The rotary operation device according to claim 1, further comprising an operating mechanism that applies a rotational force to the rotary iron core. A switch comprising the rotary operation device according to claim 1.

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