OPERATION MECHANISM FOR DUAL-POWER AUTOMATIC TRANSFER SWITCH AND DUAL-POWER AUTOMATIC TRANSFER SWITCH

Abstract

 An operation mechanism for a dual-power automatic transfer switch and a dual-power automatic transfer switch. The operation mechanism includes: a frame; a rotating disk, rotatably mounted to the frame; a first elastic member, wherein one end of the first elastic member is configured to abut against the rotating disk, and the other end of the first elastic member is mounted to the frame; a driving disk, configured to rotate in cooperation with the rotating disk when the rotating disk rotates; a driving rod, mounted on the driving disk and configured to rotate together with the driving disk and connected with a movable contact bracket, wherein at the dual-off position of the dual-power automatic transfer switch, when the rotating disk rotates in a first direction, the first elastic member deforms to store energy, and after the rotating disk rotates by a predetermined angle, the rotating disk abuts against the driving disk so that the driving disk also rotates in the first direction, then the first elastic member passes through a "dead point", and the rotating disk and the driving disk continue to rotate in the first direction under an action of the first elastic member, so that the driving rod rotates in the first direction and drive the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the dual-off position to the first power-on position.

Description

Technical field

[0001] The present invention relates to an operation mechanism for a dual-power automatic transfer switch and a dual-power automatic transfer switch.

Background

[0002] Dual-power automatic transfer switch (ATS) can be divided into two types according to its movable contact group: uniaxial and biaxial. Uniaxial means that an ATS has only one rotating shaft of movable contact group, assuming that its clockwise rotation is the turning-on operation of the first power supply, its counterclockwise rotation will be the turning-on operation of the second power supply. Biaxial means that an ATS has two rotating shafts of movable contact group, assuming that the clockwise rotation of the first rotating shaft is the turning-on operation of the first power supply, its counterclockwise rotation is the turning-off operation of the first power supply. The second rotating shaft is similar to this. It can be seen that the uniaxial ATS is either in the first power-on state or in the second power-on state, which will not cause the case where the first power supply and the second power supply are turned on at the same time, that is, this ATS has a natural interlocking function.

[0003] In addition, to ensure the continuity of power supply, the electrical operation performance and on-load manual operation performance of ATS are highly valued by relevant people in the industry. The quick switching-off characteristic of mechanism is the key factor to ensure this electrical operation performance, while the mechanism independent of manual operation can ensure the demand of on-load manual operation. How to build an ATS with such performances is the direction that engineers in the industry have been striving for.

Summary

[0004] The present invention provides an operation mechanism for a dual-power automatic transfer switch, the dual-power automatic transfer switch has a natural interlocking function and has the characteristics of independent manual operation and quick switching-off.

[0005] In one aspect, the present invention provides an operation mechanism for a dual-power automatic transfer switch, the dual-power automatic transfer switch can be switched between a dual-off position, a first power-on position and a second power-on position. The operation mechanism includes: a frame; a rotating disk, rotatably mounted to the frame; a first elastic member, one end of the first elastic member can abut against the rotating disk, and the other end of the first elastic member is mounted to the frame; a driving disk, configured to rotate in cooperation with the rotating disk when the rotating disk rotates; a driving rod, mounted on the driving disk and can rotate together with the driving disk and is connected with a movable contact bracket. At the dual-off position of the dual-power automatic transfer switch, when the rotating disk rotates in a first direction, the first elastic member deforms to store energy, after the rotating disk rotates by a predetermined angle, the rotating disk abuts against the driving disk so that the driving disk also rotates in the first direction, then the first elastic member passes through a "dead point", and the rotating disk and the driving disk continue to rotate in the first direction under an action of the first elastic member, so that the driving rod rotates in the first direction and drive the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the dual-off position to the first power-on position.

[0006] Advantageously, at the first power-on position of the dual-power automatic transfer switch, when the rotating disk rotates in a second direction opposite to the first direction, the first elastic member deforms to store energy, the first elastic member passes through a "dead point", and then the rotating disk abuts against the driving disk, so that the rotating disk and the driving disk rotate together in the second direction under an action of the first elastic member, and the driving rod rotates in the second direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the first power-on position to the dual-off position.

[0007] Advantageously, the operation mechanism further includes: a second elastic member, one end of the second elastic member can abut against the rotating disk, and the other end of the second elastic member is mounted to the frame. At the dual-off position of the dual-power automatic transfer switch, when the rotating disk rotates in the second direction, the second elastic member deforms to store energy, after the rotating disk rotates by a predetermined angle, the rotating disk abuts against the driving disk so that the driving disk also rotates in the second direction, then the second elastic member passes through a "dead point", and the rotating disk and the driving disk continue to rotate in the second direction under an action of the second elastic member, so that the driving rod rotates in the second direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the dual-off position to the second power-on position.

[0008] Advantageously, at the second power-on position of the dual-power automatic transfer switch, when the rotating disk rotates in the first direction, the second elastic member deforms to store energy, the second elastic member passes through a "dead point", and then the rotating disk abuts against the driving disk, so that the rotating disk and the driving disk rotate together in the first direction under an action of the second elastic member, and the driving rod rotates in the first direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the second power-on position to the dual-off position.

[0009] Advantageously, the operation mechanism further includes a first electromagnet and a second electromagnet, and the rotating disk includes a first pin and a second pin, when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, the first electromagnet is excited to pull the first pin to rotate the rotating disk in the first direction, and after the first elastic member passes through the "dead point", an excitation of the first electromagnet stops; when the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, the second electromagnet is excited to pull the second pin, so that the rotating disk rotates in the second direction, and after the first elastic member passes through the "dead point", an excitation of the second electromagnet stops.

[0010] Advantageously, the rotating disk further includes a third pin and a fourth pin, and when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the second electromagnet is excited to pull the third pin to rotate the rotating disk in the second direction, and after the second elastic member passes through the "dead point", an excitation of the second electromagnet stops; when the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the first electromagnet is excited to pull the fourth pin to rotate the rotating disk in the first direction, and after the second elastic member passes through the "dead point", an excitation of the first electromagnet stops.

[0011] Advantageously, the frame is provided with a first stopper, and when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, the rotating disk is separated from abutting against the second elastic member, and the first stopper prevents the second elastic member from falling down.

[0012] Advantageously, the frame is provided with a second stopper, and when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the rotating disk is separated from abutting against the first elastic member, and the second stopper prevents the first elastic member from falling down.

[0013] Advantageously, the rotating disk includes a transmission disk, when the rotating disk rotates, the transmission disk is configured to, after rotating by a predetermined angle, cooperate with the driving disk to transmit a rotation of the rotating disk to the driving disk.

[0014] Advantageously, the transmission disk has a first transmission surface and a second transmission surface, and the driving disk has a first driving surface and a second driving surface, at the dual-off position, the first transmission surface has a first angular gap with the first driving surface, and the second transmission surface has a second angular gap with the second driving surface.

[0015] Advantageously, when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, when the rotating disk rotates in the first direction, the transmission disk also rotates in the first direction, and after the transmission disk rotates by the first angular gap, the first transmission surface abuts against the first driving surface, so that the transmission disk drives the driving disk to rotate in the first direction.

[0016] Advantageously, when the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, the rotating disk rotates in the second direction, and the transmission disk also rotates in the second direction, after the transmission disk rotates by the first angular gap and the second angular gap, the second transmission surface abuts against the second driving surface, so that the transmission disk drives the driving disk to rotate in the second direction.

[0017] Advantageously, when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, when the rotating disk rotates in the second direction, the transmission disk also rotates in the second direction, and after the transmission disk rotates by the second angular gap, the second transmission surface abuts against the second driving surface, so that the transmission disk drives the driving disk to rotate in the second direction.

[0018] Advantageously, when the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the rotating disk rotates in the first direction, and the transmission disk also rotates in the first direction, after the transmission disk rotates by the first angular gap and the second angular gap, the first transmission surface abuts against the first driving surface, so that the transmission disk drives the driving disk to rotate in the first direction.

[0019] Advantageously, the transmission disk has a gear, and in a case of manual operation, a gear of a manual operation rod is engaged with the gear of the transmission disk to drive the transmission disk to rotate, so as to drive the driving disk to rotate and realize a rotation of the driving rod.

[0020] On the other hand, the present invention further provides a dual-power automatic transfer switch, including the operation mechanism as described above.

Brief description of the drawings

[0021] The advantages and objectives of the present invention can be better understood from the following detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. The drawings are not drawn to scale in order to better illustrate the relationship among the components in the drawings. In the drawings:

FIG. 1 illustrates a perspective view of an operation mechanism for a dual-power automatic transfer switch according to the present invention.

FIG. 2 illustrates an exploded view of an operation mechanism for a dual-power automatic transfer switch according to the present invention.

FIG. 3 illustrates a perspective view of a rotating disk of an operation mechanism according to the present invention.

FIG. 4 illustrates a separated view of a rotating disk and a transmission disk of an operation mechanism according to the present invention.

FIG. 5 illustrates a schematic diagram in which a rotating disk and a transmission disk of an operation mechanism are mounted together according to the present invention.

FIG. 6 illustrates a perspective view of a driving disk of an operation mechanism according to the present invention.

FIG. 7 illustrates a plan view of a driving disk of an operation mechanism according to the present invention.

FIG. 8 illustrates a perspective view in which a driving disk and a transmission disk are mounted together according to the present invention.

FIG. 9 illustrates a plan view in which a driving disk and a transmission disk are mounted together according to the present invention.

FIGS. 10a to 10e illustrate an operation process of an operation mechanism when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position.

FIGS. 11a to 11e illustrate an operation process of an operation mechanism when the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position.

FIG. 12 illustrates a schematic diagram when an operation mechanism according to the present invention is manually operated.

Detailed description

[0022] Each embodiment according to the present invention will be described in detail with reference to the drawings. Here, it should be noted that in the drawings, the same reference numerals are given to components having substantially the same or similar structures and functions, and repeated descriptions thereof will be omitted. Unless otherwise specified, the terms "first direction", "second direction", "rotation direction", etc, are described with respect to the drawings of the present invention. The term "including A, B, C, etc, in sequence" only indicates the arrangement order of included components A, B, C, etc., and does not exclude the possibility of including other components between A and B and/or between B and C. The description of "first" and its variants is only for distinguishing various components, and does not limit the scope of the present invention, without departing from the scope of the present invention, "first component" can be written as "second component", etc.

[0023] The drawings in this specification are schematic diagrams, which help to explain the concept of the present invention and schematically illustrate the shapes of various components and their mutual relationships.

[0024] Next, the preferred embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 12.

[0025] FIGS. 1 and 2 respectively illustrate a perspective view and an exploded view of an operation mechanism for a dual-power automatic transfer switch according to the present invention. The operation mechanism includes a frame 1 including a first support plate 11, a second support plate 12 and a third support plate 13. A rotating disk 2 is rotatably arranged between the first support plate and the second support plate via a rotating shaft 3, and a transmission disk 4 is also arranged on the rotating disk, so that the transmission disk can rotate together with the rotating disk. The transmission disk 4 can be integrated with the rotating disk (i.e., the transmission disk is a part of the rotating disk) or connected to the rotating disk by other means (i.e., the transmission disk and the rotating disk are separated). A driving disk 5 is mounted to the rotating disk 2, particularly to the transmission disk 4, and can rotate under the rotation of the transmission disk, thereby driving a driving rod 51 on the driving disk to rotate. The driving rod 51 is connected with a movable contact bracket of the dual-power automatic transfer switch, so that the rotation of the driving rod causes the movable contact bracket to rotate, thereby realizing the switching of the dual-power automatic transfer switch.

[0026] The operation mechanism further includes: a first elastic member 6, wherein one end of the first elastic member is configured to abut against the rotating disk, and the other end of the first elastic member is mounted to the frame; a second elastic member 7, wherein one end of the second elastic member is configured to abut against the rotating disk, and the other end of the second elastic member is mounted to the frame. Preferably, the first elastic member and the second elastic member are symmetrically arranged about the longitudinal axis of the rotating disk.

[0027] As illustrated in FIG. 2, the rotating disk 2 has a first disk 21 and a second disk 22, and a first rod (not illustrated in the figure) and a second rod 23 are arranged between the first disk 21 and the second disk 22. The first elastic member 6 abuts against the first rod, and the second elastic member abuts against the second rod 23.

[0028] As illustrated in FIGS. 4 to 9, the transmission disk 4 has a first transmission surface 41 and a second transmission surface 42, and correspondingly, the driving disk 5 has a first driving surface 52 and a second driving surface 53. The contour of the first transmission surface is matched with the contour of the first driving surface, and the contour of the second transmission surface is matched with the contour of the second driving surface. When the transmission disk and the driving disk are mounted together, at the dual-off position, there is a first angular gap between the first transmission surface 41 and the first driving surface 52, and there is a second angular gap between the second transmission surface 42 and the second driving surface 53. Preferably, the first angular gap is equal to the second angular gap. Because of the first angular gap and the second angular gap, when the transmission disk starts to rotate, the driving disk will not rotate, but after the transmission disk rotates by the first angular gap or the second angular gap so that the first transmission surface abuts against the first driving surface or the second transmission surface abuts against the second driving surface, the driving disk will rotate under the driving of the transmission disk.

[0029] The operation mechanism of the present invention can be operated electrically or manually. Next, the operation process of the operation mechanism of the present invention will be described by an example of electric operation.

[0030] When the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, a first electromagnet 8 is excited to be pulled down, so that the first electromagnet abuts against a first pin 24 (as illustrated in FIG. 3) arranged on the rotating disk, thereby pulling the rotating disk to rotate clockwise, which causes the second elastic member 7 to separate from the rotating disk (because of a stopper mounted to the frame, the second elastic member will not fall down), and the first elastic member 6 is compressed to store energy. Rotation of the rotating disk drives the transmission disk to rotate, and because of the first angular gap between the first transmission surface of the transmission disk and the first driving surface of the driving disk, the driving disk will not rotate when the transmission disk starts to rotate. As the transmission disk rotates by the first angular gap so that the first transmission surface abuts against the first driving surface (as illustrated in FIG. 10c), the drive disk rotates. Then, the first elastic member passes through a "dead point" position (as illustrated in FIG. 10d), the excitation of the first electromagnet stops, and the first electromagnet returns to the initial position under the action of its own reset elastic member. After that, the first elastic member releases energy, so that the rotating disk continues to rotate clockwise, thereby driving the transmission disk, the driving disk and the driving rod to rotate, and realizing quick switching-on (switching from the dual-off position to the first power-on position). When switching from the dual-off position to the first power-on position, the first transmission surface abuts against the first driving surface, and then the first elastic member passes through the "dead point" position, thus realizing quick switching-on. When the rotating disk and the transmission disk rotate such that the dual-power automatic transfer switches to the first power-on position, the positions of the rotating disk and of the transmission disk are maintained by a stop mechanism. The stop mechanism is not the focus of the present invention, and therefore it will not be described in detail. It should be understood by those skilled in the art that the stop mechanism is configured to maintain the positions of the rotating disk and the transmission disk.

[0031] When the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, a second electromagnet 9 is excited to be pulled down, so that the second electromagnet abuts against a second pin 25 arranged on the rotating disk, thereby pulling the rotating disk to rotate counterclockwise, which causes the first elastic member 6 to be compressed and store energy. The first elastic member 6 passes through the "dead point" position, and then the excitation of the second electromagnet stops, and the second electromagnet returns to the initial position under the action of its own reset elastic member. Thereafter, under the action of the elastic force of the first elastic member, the rotating disk drives the transmission disk to rotate counterclockwise, because there are a first angular gap and a second angular gap between the second transmission surface of the transmission disk and the second driving surface of the driving disk, the driving disk will not rotate when the transmission disk starts to rotate. After the transmission disk rotates by the first angular gap and the second angular gap to make the second transmission surface abut against the second driving surface, the transmission disk drives the driving disk to rotate counterclockwise, and then drives the driving rod to rotate. When the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, the first elastic member passes through the "dead point" position, and then the second transmission surface abuts against the second driving surface, thus realizing the switching-off operation independent of manpower. When the rotating disk and the transmission disk rotate such that the dual-power automatic transfer switches to the dual-off position, the rotating disk and the transmission disk are returned to the initial position through the first elastic member and the second elastic member.

[0032] With reference to the drawings, the operation process of the operation mechanism of the present invention has been described above when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position. It should be understood by those skilled in the art that when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the operation process of the operation mechanism of the present invention is as follows.

[0033] Similarly, when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the second electromagnet 9 is excited to be pulled down, so that the second electromagnet abuts against a third pin 26 arranged on the rotating disk, thereby pulling the rotating disk to rotate in the counterclockwise direction, which causes the first elastic member 6 to separate from the rotating disk (because of the stopper mounted to the frame, the first elastic member will not fall down), and the second elastic member 7 is compressed to store energy. The rotation of the rotating disk drives the transmission disk to rotate, and because of the second angular gap between the second transmission surface of the transmission disk and the second driving surface of the driving disk, the driving disk will not rotate when the transmission disk starts to rotate. As the transmission disk rotates by the second angular gap so that the second transmission surface abuts against the second driving surface, the driving disk rotates. Then, the second elastic member passes through the "dead point" position, the excitation of the second electromagnet stops, and the second electromagnet returns to the initial position under the action of its own reset elastic member. After that, the second elastic member releases energy, so that the rotating disk continues to rotate clockwise, thereby driving the transmission disk, the driving disk and the driving rod to rotate, and realizing quick switching-on (switching from the dual-off position to the second power-on position). When switching from the dual-off position to the second power-on position, the second transmission surface abuts against the second driving surface, and then the second elastic member passes through the "dead point" position, thus realizing quick switching-on.

[0034] When the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the first electromagnet 8 is excited to be pulled down, so that the second electromagnet abuts against a fourth pin 27 arranged on the rotating disk, thereby pulling the rotating disk to rotate clockwise, which causes the second elastic member 7 to be compressed and store energy. The second elastic member 7 passes through the "dead point" position, and then, the excitation of the second electromagnet stops, and the second electromagnet returns to the initial position under the action of its own reset elastic member. Thereafter, under the action of the elastic force of the second elastic member, the rotating disk drives the transmission disk to rotate clockwise, because there are a first angular gap and a second angular gap between the first transmission surface of the transmission disk and the first driving surface of the driving disk, the driving disk will not rotate when the transmission disk starts to rotate. After the transmission disk rotates by the first angular gap and the second angular gap so that the first transmission surface abuts against the first driving surface, the transmission disk drives the driving disk to rotate clockwise, and then drives the driving rod to rotate. When the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the second elastic member passes through the "dead point" position, and then the first transmission surface abuts against the first driving surface, thus realizing the switching-off operation independent of manpower.

[0035] The operation mechanism of the present invention can also be operated manually, and in the case of manual operation, as illustrated in the figure, a gear is arranged on the transmission disk, and a gear of a manual operation rod 10 is engaged with the gear of the transmission disk, thereby realizing the rotation of the transmission disk and further realizing the rotation of the driving disk. This rotation process is similar to the process described above for electric operation, and will not be described in detail here.

[0036] According to the operation mechanism of the present invention, the natural interlocking is realized through a single driving rod, and meanwhile, a lightweight design is realized, so that the driving of the electromagnet can achieve better response and realize faster transmission.

[0037] Furthermore, the technical features disclosed above are not limited to the disclosed combination with other features, and those skilled in the art can also combine other technical features according to the purpose of the present invention, so as to achieve the purpose of the present invention.

Claims

1. An operation mechanism for a dual-power automatic transfer switch, the dual-power automatic transfer switch being configured to switch between a dual-off position, a first power-on position and a second power-on position, characterized in that the operation mechanism comprises:

a frame;

a rotating disk, rotatably mounted to the frame;

a first elastic member, wherein one end of the first elastic member is configured to abut against the rotating disk, and the other end of the first elastic member is mounted to the frame;

a driving disk, configured to rotate in cooperation with the rotating disk when the rotating disk rotates;

a driving rod, mounted on the driving disk and configured to rotate together with the driving disk and connected with a movable contact bracket,

wherein at the dual-off position of the dual-power automatic transfer switch, when the rotating disk rotates in a first direction, the first elastic member deforms to store energy, and after the rotating disk rotates by a predetermined angle, the rotating disk abuts against the driving disk so that the driving disk also rotates in the first direction, then the first elastic member passes through a "dead point", and the rotating disk and the driving disk continue to rotate in the first direction under an action of the first elastic member, so that the driving rod rotates in the first direction and drive the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the dual-off position to the first power-on position.

2. The operation mechanism according to claim 1, characterized in that at the first power-on position of the dual-power automatic transfer switch, when the rotating disk rotates in a second direction opposite to the first direction, the first elastic member deforms to store energy, and the first elastic member passes through a "dead point", then the rotating disk abuts against the driving disk, so that the rotating disk and the driving disk rotate together in the second direction under an action of the first elastic member, and the driving rod rotates in the second direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the first power-on position to the dual-off position.

3. The operation mechanism according to claim 2, characterized in that the operation mechanism further comprises: a second elastic member, wherein one end of the second elastic member is configured to abut against the rotating disk, and the other end of the second elastic member is mounted to the frame,
at the dual-off position of the dual-power automatic transfer switch, when the rotating disk rotates in the second direction, the second elastic member deforms to store energy, and after the rotating disk rotates by a predetermined angle, the rotating disk abuts against the driving disk so that the driving disk also rotates in the second direction, then the second elastic member passes through a "dead point", and the rotating disk and the driving disk continue to rotate in the second direction under an action of the second elastic member, so that the driving rod rotates in the second direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the dual-off position to the second power-on position.

4. The operation mechanism according to claim 3, characterized in that at the second power-on position of the dual-power automatic transfer switch, when the rotating disk rotates in the first direction, the second elastic member deforms to store energy, and the second elastic member passes through a "dead point", then the rotating disk abuts against the driving disk, so that the rotating disk and the driving disk rotate together in the first direction under an action of the second elastic member, and the driving rod rotates in the first direction and drives the movable contact bracket to rotate, so as to realize a switching of the dual-power automatic transfer switch from the second power-on position to the dual-off position.

5. The operation mechanism according to claim 4, characterized in that the operation mechanism further comprises a first electromagnet and a second electromagnet, and the rotating disk comprises a first pin and a second pin, wherein when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, the first electromagnet is excited to pull the first pin to rotate the rotating disk in the first direction, and after the first elastic member passes through the "dead point", an excitation of the first electromagnet stops,
wherein when the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, the second electromagnet is excited to pull the second pin, so that the rotating disk rotates in the second direction, and after the first elastic member passes through the "dead point", an excitation of the second electromagnet stops.

6. The operation mechanism according to claim 5, characterized in that the rotating disk further comprises a third pin and a fourth pin, and when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the second electromagnet is excited to pull the third pin to rotate the rotating disk in the second direction, and after the second elastic member passes through the "dead point", an excitation of the second electromagnet stops,
when the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the first electromagnet is excited to pull the fourth pin to rotate the rotating disk in the first direction, and after the second elastic member passes through the "dead point", an excitation of the first electromagnet stops.

7. The operation mechanism according to claim 6, characterized in that the frame is provided with a first stopper, and when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, the rotating disk is separated from the second elastic member, and the first stopper prevents the second elastic member from falling down.

8. The operation mechanism according to claim 6, characterized in that the frame is provided with a second stopper, and when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the rotating disk is separated from the first elastic member, and the second stopper prevents the first elastic member from falling down.

9. The operation mechanism according to claim 1, characterized in that the rotating disk comprises a transmission disk, wherein when the rotating disk rotates, the transmission disk is configured to, after rotating by a predetermined angle, cooperate with the driving disk to transmit a rotation of the rotating disk to the driving disk.

10. The operation mechanism according to claim 9, characterized in that the transmission disk has a first transmission surface and a second transmission surface, and the driving disk has a first driving surface and a second driving surface, wherein at the dual-off position, there is a first angular gap between the first transmission surface and the first driving surface, and there is a second angular gap between the second transmission surface and the second driving surface.

11. The operation mechanism according to claim 10, characterized in that when the dual-power automatic transfer switch is switched from the dual-off position to the first power-on position, the rotating disk rotates in the first direction and the transmission disk also rotates in the first direction, and after the transmission disk rotates by the first angular gap, the first transmission surface abuts against the first driving surface, so that the transmission disk drives the driving disk to rotate in the first direction.

12. The operation mechanism according to claim 11, characterized in that when the dual-power automatic transfer switch is switched from the first power-on position to the dual-off position, the rotating disk rotates in the second direction, and the transmission disk also rotates in the second direction, and after the transmission disk rotates by the first angular gap and the second angular gap, the second transmission surface abuts against the second driving surface, so that the transmission disk drives the driving disk to rotate in the second direction.

13. The operation mechanism according to claim 10, characterized in that when the dual-power automatic transfer switch is switched from the dual-off position to the second power-on position, the rotating disk rotates in the second direction and the transmission disk also rotates in the second direction, and after the transmission disk rotates by the second angular gap, the second transmission surface abuts against the second driving surface, so that the transmission disk drives the driving disk to rotate in the second direction.

14. The operation mechanism according to claim 13, characterized in that when the dual-power automatic transfer switch is switched from the second power-on position to the dual-off position, the rotating disk rotates in the first direction, and the transmission disk also rotates in the first direction, after the transmission disk rotates by the first angular gap and the second angular gap, the first transmission surface abuts against the first driving surface, so that the transmission disk drives the driving disk to rotate in the first direction.

15. The operation mechanism according to claim 9, characterized in that the transmission disk has a gear, and in a case of manual operation, a gear of a manual operation rod is engaged with the gear of the transmission disk to drive the transmission disk to rotate, so as to drive the driving disk to rotate and realize a rotation of the driving rod.

16. A dual-power automatic transfer switch, comprising the operation mechanism according to any one of claims 1 to 15.

Drawing