Circuit breaker operating device and control method thereof

Abstract

The invention relates to a circuit breaker operating device and a control method thereof, and the operating device comprises an operating shaft, a driving mechanism which is used for driving the operating shaft to rotate, a driving sliding block which is movably arranged in a first direction, a cam which is fixedly arranged on the operating shaft, and a linkage mechanism. The linkage mechanism is used for driving the driving sliding block to move when the operation shaft rotates; the cam is provided with a main body part and a protruding part which protrudes and extends outwards from the main body part; the operating device further comprises a control system and two microswitches arranged on the outer side of the cam in the circumferential direction in a spaced mode, the driving mechanism has a first mode and a second mode, and in the first mode, the driving mechanism drives the operating shaft to rotate; and in the second mode, the driving mechanism stops driving the operation shaft to rotate, the driving mechanism is configured to be switched from the first mode to the second mode when the states of the two microswitches are switched, and the operation device is more accurate in control and better in safety.

Description

Technical Field

[0001] The invention relates to a circuit breaker operating device and a control method thereof. Background Art

[0002] In the prior art, the electric operating device of the circuit breaker is provided with an operating shaft and a slider, and the slider is connected to the handle of the circuit breaker. When performing the opening and closing operation, the motor drives the operating shaft to rotate, and the operating shaft drives the slider to slide and drive the handle of the circuit breaker to move. After the opening and closing conversion is completed, the motor stops working. Most electric operating devices also include a cam fixed on the operating shaft and a micro switch arranged on the circumference of the cam. When the opening and closing operation is completed, the cam contacts the micro switch, and the micro switch is converted from the open state to the closed state, or, when the opening and closing operation is completed, the cam is separated from the micro switch, and the micro switch is converted from the closed state to the open state. After receiving the signal of the state conversion of the micro switch, the operating device drives the motor to stop working. Some circuit breakers will generate large vibrations during the opening and closing operation. The micro switch may change its state by mistake due to the vibration, causing the operating device to receive an erroneous signal and mistakenly terminate the operation of the motor, so that the circuit breaker cannot complete the opening and closing normally, thereby causing great safety hazards. Summary of the invention

[0003] The object of the present invention is to provide a new circuit breaker operating device.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: a circuit breaker operating device, comprising:

[0005] The operating shaft is rotatably arranged around its own axis;

[0006] A driving mechanism, used for driving the operating shaft to rotate;

[0007] A driving slider connected to the handle of the circuit breaker, wherein the driving slider is movably arranged along a first direction;

[0008] a linkage mechanism, disposed between the operating shaft and the driving slider, and configured to drive the driving slider to move along the first direction during the rotation of the operating shaft;

[0009] A cam, the cam being fixed on the operating shaft, the cam comprising a main body and a protruding portion extending outwardly from the main body;

[0010] The micro switch has two micro switches arranged at intervals on the circumferential outer side of the cam. When the micro switch corresponds to the position of the protrusion, the micro switch is in a closed state; when the micro switch corresponds to the position of the main body, the micro switch is in an open state; the drive mechanism has a first mode and a second mode. In the first mode, the drive mechanism drives the operating shaft to rotate; in the second mode, the drive mechanism stops driving the operating shaft to rotate, wherein the drive mechanism is configured to switch from the first mode to the second mode when the states of the two micro switches are converted.

[0011] In some embodiments, the two micro switches are respectively a first micro switch and a second micro switch, the circuit breaker operating device also includes a control system, the first micro switch and the second micro switch are respectively connected to the control system signal, and the driving mechanism is connected to the control system signal.

[0012] In some embodiments, when the first micro switch is in contact with the protrusion, the second micro switch corresponds to the position of the main body; when the first micro switch corresponds to the position of the main body, the second micro switch is in contact with the protrusion.

[0013] In some embodiments, a protrusion is provided on the cam, and in the projection of the cam and the operating shaft along the extension direction of the axis of the operating shaft, with the projection point of the axis of the operating shaft as the origin, the central angle corresponding to the protrusion is 180°.

[0014] In some embodiments, the linkage mechanism includes a driving groove arranged on the driving slider, and a linkage member fixedly connected to the operating shaft, the driving groove extends along a second direction, the second direction is perpendicular to the first direction, and an insert is provided on the linkage member, and the insert is slidably inserted into the driving groove.

[0015] In some embodiments, the driving slider has a first driving surface and a second driving surface, the first driving surface and the second driving surface are arranged at intervals along the first direction, and an installation space for inserting the handle of the circuit breaker is formed between the first driving surface and the second driving surface, and the first driving surface and the second driving surface respectively extend obliquely toward the circuit breaker along the first direction at the same time, and there is a first distance between the end of the first driving surface close to the circuit breaker and the end of the second driving surface close to the circuit breaker, and there is a second distance between the end of the first driving surface away from the circuit breaker and the end of the second driving surface away from the circuit breaker, and the first distance is smaller than the second distance.

[0016] In some embodiments, a manual operating hole is provided at one end of the operating shaft, the circuit breaker operating device is provided with a manual operating rod, the circuit breaker operating device includes a shell fixed on the circuit breaker, the operating shaft is located in the shell, and a receiving groove for accommodating the manual operating rod is provided on the outside of the shell; the manual operating rod has an insertion portion, and the cross-sectional shape of the insertion portion matches the cross-sectional shape of the manual operating hole.

[0017] In some embodiments, a through hole connected to the manual operation hole is provided on one side of the shell, and a shielding member is movably provided on the shell, and the shielding member has a first position and a second position on the shell. When the shielding member is in the first position, the through hole is blocked by the shielding member, and when the shielding member is in the second position, the through hole is opened.

[0018] In some embodiments, the circuit breaker operating device has an electric mode and a manual mode, and the circuit breaker operating device has a control switch, and the control switch is configured to control the circuit breaker operating device to switch between the electric mode and the manual mode. The control switch is arranged on the movement path of the shielding member. When the shielding member is in the first position, the shielding member does not contact the control switch, and the circuit breaker operating device is in the electric mode; when the shielding member is in the second position, the control switch is triggered, and the circuit breaker operating device is converted to the manual mode.

[0019] An object of the present invention is to provide a control method for a circuit breaker operating device.

[0020] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a control method for a circuit breaker operating device, based on the above-mentioned circuit breaker operating device, when the state of the first microswitch does not change, the driving mechanism remains in a working state; when the state of the first microswitch changes, and the state of the second microswitch does not change, the driving mechanism remains in a working state; when the state of the first microswitch changes, and the state of the second microswitch changes, the control system sends a signal to the driving mechanism, and the driving mechanism stops working.

[0021] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the circuit breaker operating device of the present invention is provided with two micro switches at intervals on the circumferential side of the cam, and the driving mechanism has a first mode and a second mode. In the first mode, the driving mechanism drives the operating shaft to rotate, and the operating mechanism performs opening and closing operations; in the second mode, the driving mechanism stops driving the operating shaft to rotate, and the states of the two micro switches are changed as a signal for the driving mechanism to switch from the first mode to the second mode. Even if one of the micro switches changes state due to disturbance, the driving mechanism will not stop working, and the control of the operating device is more precise and the safety performance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of a circuit breaker operating device according to a specific embodiment of the present invention;

[0023] Attached Figure 2 For attachment Figure 1 The main view;

[0024] Attached Figure 3 For attachment Figure 2 A schematic diagram of the middle shielding member being in the second position;

[0025] Attached Figure 4 For attachment Figure 1 A three-dimensional schematic diagram of the structure of the middle part;

[0026] Attached Figure 5 For attachment Figure 4 Schematic diagram of the operation axis;

[0027] Attached Figure 6 For attachment Figure 5 Schematic diagram of the intermediate linkage;

[0028] Attached Figure 7 For attachment Figure 4 Schematic diagram of the middle drive slider and guide column;

[0029] Attached Figure 8 For attachment Figure 7 Schematic diagram of the middle drive slider after removing the linkage plate;

[0030] Attached Fig. 9 It is a schematic diagram of the cam and the micro switch;

[0031] Attached Fig.10 For attachment Fig. 9 A schematic diagram in another state;

[0032] Attached Fig.11 For attachment Figure 2 Schematic diagram of the structure of the middle part;

[0033] Attached Fig.12 For attachment Figure 3Schematic diagram of the central part of the organization;

[0034] Attached Fig.13 is a three-dimensional schematic diagram of a manual operating lever;

[0035] Wherein: 1. shell; 10. mounting plate; 11. through hole; 12. guide groove; 13. indication window; 14. accommodating groove; 101. guide column; 2. operating shaft; 21. cam; 211. main body; 212. protrusion; 213. first junction; 214. second junction; 22. driving gear; 23. linkage member; 231. insert; 24. manual operation hole; 3. driving mechanism; 31. driving motor; 32. gear assembly; 4. driving slider; 41. slider body; 411. first driving surface; 412. second driving surface; 42. linkage plate; 421. driving groove; 51. first micro switch; 52. second micro switch; 53. control switch; 6. shielding member; 61. operating part; 7. manual operating rod; 71. insert; 72. rod body. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0037] See also Figure 1 , Figure 2 A circuit breaker operating device is shown, which includes a housing 1 fixed on the circuit breaker, and the operating device includes an operating shaft 2, a driving mechanism 3, a driving slider 4 and a linkage mechanism arranged in the housing 1. The operating shaft 2 is arranged to rotate around its own axis; the driving mechanism 3 is used to drive the operating shaft 2 to rotate; the driving slider 4 is connected to the handle of the circuit breaker, and the driving slider 4 is movably arranged along a first direction, and the driving slider 4 is used to drive the circuit breaker to open and close; the linkage mechanism is arranged between the operating shaft 2 and the driving slider 4, and the linkage mechanism is used to drive the driving slider 4 to move along the first direction during the rotation of the operating shaft 2.

[0038] The circuit breaker operating device further includes a cam 21 and a micro switch. The cam 21 is fixed on the operating shaft 2. The cam 21 has a main body 211 and a protrusion 212 protruding outward from the main body 211. The micro switch includes at least two micro switches arranged at intervals on the circumferential outer side of the cam 21. The two micro switches are respectively a first micro switch 51 and a second micro switch 52. When the protrusion 212 corresponds to the position of the micro switch, the protrusion 212 can drive the micro switch to close and switch to a closed state. When the main body 211 corresponds to the position of the micro switch, the micro switch will not be triggered and is in an open state.

[0039] The driving mechanism 3 has a first mode and a second mode, and the driving mechanism 3 is configured to switch from the first mode to the second mode when the states of the two micro switches are converted. In the first mode, the driving mechanism 3 drives the operating shaft 2 to rotate and drives the slider 4 to perform the opening and closing operation. In this mode, the first micro switch 51 is in a closed state or in an open state, and the second micro switch 52 is in a closed state or in an open state. In the second mode, the state of the first micro switch 51 changes, the state of the second micro switch 52 changes, the driving mechanism 3 stops driving the operating shaft 2 to rotate, and the circuit breaker operating device stops the opening and closing operation. In this way, whether to switch the mode of the driving mechanism 3 is determined based on whether the states of the two micro switches change. Even if one of the micro switches is mistakenly changed due to vibration or other reasons, it is still possible to make a correct judgment based on the state of the other micro switch and send a correct control signal, and the safety performance is better.

[0040] In this embodiment, the circuit breaker operating device also includes a control system. The two micro switches are respectively connected to the control system signals, and the control system is connected to the drive mechanism 3 signals. The control system can send commands to the drive mechanism 3 according to the state conversion signal sent by the micro switch, so that the drive mechanism 3 switches the mode.

[0041] In some embodiments, when the first micro switch 51 is at the junction of the protrusion 212 and the main body 211, the second micro switch 52 is also at the junction of the protrusion 212 and the main body 211. In this way, as the cam 21 rotates, when the state of the first micro switch 51 changes, the state of the second micro switch 52 will also change, and the simultaneous change of the states of the two micro switches can be used as a signal for the drive mechanism 3 to issue a stop command.

[0042] In some embodiments, when one micro switch contacts the protrusion 212, the other micro switch corresponds to the position of the main body 211. In this embodiment, when the first micro switch 51 contacts the protrusion 212, the second micro switch 52 corresponds to the main body 211; when the first micro switch 51 corresponds to the position of the main body 211, the second micro switch 52 contacts the protrusion 212. That is, when the first micro switch 51 is closed, the second micro switch 52 is opened; when the first micro switch 51 is opened, the second micro switch 52 is closed. For details, see Fig. 9 , Fig.10 As shown, a protrusion 212 is provided on the cam 21 . As the cam 21 rotates, the protrusion 212 contacts the first micro switch 51 and the second micro switch 52 alternately.

[0043] In some preferred embodiments, along the circumferential direction of the cam 21, the protrusion 212 and the main body 211 form a first junction 213 and a second junction 214. When the first micro switch 51 is at the first junction 213, the second micro switch 52 is at the second junction 214; when the first micro switch 51 is switched to the second junction 214, the second micro switch 52 is switched to the first junction 213. Specifically, in the projection of the cam 21 and the operating shaft 2 along the axis of the operating shaft 2, the projection point of the axis of the operating shaft 2 is taken as the origin, and the central angle corresponding to the protrusion 212 is 180°. In this way, when the cam 21 rotates half a circle, the first micro switch 51 or the second micro switch 52 can be switched between the first junction 213 and the second junction 214, so that the states of the two micro switches can be switched simultaneously.

[0044] In this embodiment, in the electric mode, when the circuit breaker operating device performs the opening and closing operation, the drive mechanism 3 drives the operating shaft 2 to rotate. During this process, the control system will first judge according to the state of the first micro switch 51. When the state of the first micro switch 51 does not change, the control system will not send a termination signal to the drive mechanism 3, and the drive mechanism 3 remains in the first mode, and the operating shaft 2 keeps rotating. When the state of the first micro switch 51 changes, but the state of the second micro switch 52 does not change, the control system will not send a termination signal to the drive mechanism 3, and the drive mechanism 3 still remains in the first mode; only when the state of the first micro switch 51 changes and the state of the second micro switch 52 changes, the control system sends a termination signal to the drive mechanism 3, and the drive mechanism 3 switches to the second mode.

[0045] Specifically, see Fig. 9 As shown, in this embodiment, during the rotation of the operating shaft 2, the protrusion 212 abuts against the first micro switch 51, so that the first micro switch 51 is in a closed state. During this process, the second micro switch 52 is in an open state. Fig.10 As shown, after the cam 21 rotates about half a circle, the first micro switch 51 disengages from the protrusion 212, and the first micro switch 51 switches to an open state, and the second micro switch 52 contacts the protrusion 212, and the second micro switch 52 switches to a closed state. At this time, the control system receives a signal that the states of both micro switches have changed and sends a termination signal to the drive mechanism 3. The drive mechanism 3 receives the signal and switches to the second mode.

[0046] In this embodiment, the housing 1 is fixed on the mounting plate 10, and a receiving cavity is formed between the housing 1 and the mounting plate 10, and the operating shaft 2, the driving mechanism 3, the driving slider 4, the linkage mechanism and the cam 21 are all arranged in the receiving cavity. Specifically, a fixing frame is provided in the receiving cavity, the fixing frame is fixedly connected to the mounting plate 10, and the operating shaft 2 is rotatably connected to the fixing frame.

[0047] In this embodiment, the fixed frame is provided with a guide column 101 extending along the first direction. The guide column 101 includes two parallel arranged ones. The driving slider 4 is connected to the two guide columns 101 in a sliding manner. The guide columns 101 provide guidance for the sliding of the driving slider 4. Figures 5 to 7 As shown, in this embodiment, the linkage mechanism includes a driving groove 421 provided on the driving slider 4, and a linkage member 23 fixedly connected to the operating shaft 2, the driving groove 421 extends along a second direction, the second direction is perpendicular to the first direction, the linkage member 23 is fixedly arranged at the end of the operating shaft 2 close to the circuit breaker, and an insert 231 is provided on the linkage member 23, and the insert 231 is inserted into the driving groove 421 in a sliding manner. When the operating shaft 2 rotates, the linkage member 23 rotates together with the operating shaft 2, and during this process, the insert 231 slides in the driving groove 421, and at the same time, the insert 231 drives the driving slider 4 to move along the first direction. Specifically, the operating shaft 2 extends along a third direction, the third direction is perpendicular to the first direction, and the driving slider 4 is arranged on a side of the operating shaft 2 close to the circuit breaker along the third direction. See. Figure 5 , Figure 6 As shown, the linkage member 23 is also cam-shaped, so that it can more stably follow the rotation of the operating shaft 2 and can more stably drive the driving slider 4 to move.

[0048] In this embodiment, the driving slider 4 has a first driving surface 411 and a second driving surface 412, and the first driving surface 411 and the second driving surface 412 are arranged at intervals along the first direction, and an installation space for inserting the handle of the circuit breaker is formed between the first driving surface 411 and the second driving surface 412. When the driving slider 4 moves along the first direction, the first driving surface 411 or the second driving surface 412 contacts the handle of the circuit breaker and drives the handle of the circuit breaker to move, thereby realizing the opening and closing of the circuit breaker.

[0049] In this embodiment, see Figure 4 , Figure 8 As shown, the first driving surface 411 and the second driving surface 412 extend obliquely toward the circuit breaker along the first direction and the third direction respectively. Specifically, along the third direction, there is a first spacing between the end of the first driving surface 411 close to the circuit breaker and the end of the second driving surface 412 close to the circuit breaker, and there is a second spacing between the end of the first driving surface 411 away from the circuit breaker and the end of the second driving surface 412 away from the circuit breaker, and the first spacing is smaller than the second spacing. The first driving surface 411 and the second driving surface 412 extend obliquely, and when the handle of the circuit breaker is in a separated state or in a closed state, the handle can better fit with the first driving surface 411 or the second driving surface 412, so that the handle can be better driven to rotate.

[0050] In this embodiment, see Figure 7 , Figure 8 As shown, the driving slider 4 has a slider body 41 and a linkage plate 42 that are fixedly connected, a first driving surface 411 and a second driving surface 412 are arranged on the slider body 41, a driving groove 421 is arranged on the linkage plate 42, a guide hole is arranged on the slider body 41, and a guide column 101 is inserted in the guide hole in a sliding manner. When the driving slider 4 fails, the slider body 41 or the linkage plate 42 can be replaced separately, or the slider body 41 or the linkage plate 42 can be replaced to adapt to different types of circuit breakers.

[0051] In this embodiment, the circuit breaker operating device has an electric mode and a manual mode. In the electric mode, the driving mechanism 3 drives the operating shaft 2 to rotate. In the manual mode, the driving mechanism 3 stops working and the operating shaft 2 is manually driven to rotate by the staff.

[0052] In this embodiment, the driving mechanism 3 includes a driving motor 31 and a gear assembly 32. The operating shaft 2 is fixed with a driving gear 22. The driving motor 31 drives the gear assembly 32 to rotate. The gear assembly 32 transmits power to the driving gear 22, and the driving gear 22 drives the operating shaft 2 to rotate. In this embodiment, the control system is connected to the driving motor 31 by signal. When the control system receives that the states of the two micro switches have changed, the control system sends a signal to the driving motor 31 and drives the driving motor 31 to stop working.

[0053] See also Figure 4 As shown, in this embodiment, a manual operation hole 24 is provided at one end of the operating shaft 2. Specifically, the manual operation hole 24 is located at an end of the operating shaft 2 away from the circuit breaker. Fig.13 As shown, the circuit breaker operating device is further provided with a manual operating rod 7, which has an insertion portion 71 and a rod body 72, and the cross-sectional shape of the insertion portion 71 matches the cross-sectional shape of the manual operating hole 24. Figure 1 , Figure 2As shown, a receiving groove 14 is provided on the outer side of the housing 1. In the electric mode, the manual operating rod 7 is received in the receiving groove 14. In the manual mode, the staff takes out the manual operating rod 7 from the receiving groove 14, inserts the insertion portion 71 into the manual operating hole 24, and drives the operating shaft 2 to rotate by rotating the manual operating rod 7 to realize the opening and closing of the circuit breaker.

[0054] In this embodiment, a through hole 11 connected to the manual operation hole 24 is provided on one side of the housing 1, and a shielding member 6 is movably provided on the housing 1. The shielding member 6 has a first position and a second position on the housing 1. When the shielding member 6 is in the first position, see Figure 2 , Fig.11 As shown, the through hole 11 is shielded by the shielding member 6, which prevents the manual operation hole 24 from being misoperated and prevents the interior of the housing 1 from being contaminated. Figure 3 , Fig.12 As shown, the through hole 11 is open, and the staff can use the manual operating lever 7 to manually open and close the switch.

[0055] In this embodiment, the shielding member 6 is provided with an operating portion 61, which extends out of the housing 1. The housing 1 is provided with a guide groove 12, in which the operating portion 61 is inserted and can slide in the guide groove 12. The staff can drive the shielding member 6 to switch between the first position and the second position by driving the operating portion 61 to slide. Figure 1 As shown, the guide groove 12 is located on one side of the through hole 11 and is in the shape of an elongated strip. When the operating portion 61 is located at one end of the guide groove 12 close to the through hole 11, the shielding member 6 is in the first position. When the operating portion 61 is located at one end of the guide groove 12 away from the through hole 11, the shielding member 6 is in the second position.

[0056] In this embodiment, the circuit breaker operating device has a control switch 53, which can control the circuit breaker operating device to switch between the electric mode and the manual mode. The control switch 53 is arranged on the movement path of the shielding member 6. When the shielding member 6 is in the first position, the shielding member 6 does not contact the control switch 53, and the circuit breaker operating device is in the electric mode; when the shielding member 6 is in the second position, the control switch 53 is triggered, and the circuit breaker operating device is converted to the manual mode.

[0057] In this embodiment, an indicator window 13 is further provided on the housing 1, through which a worker can observe the cam 21. An indicator pattern can be set on the cam 21. During the rotation of the cam 21, the index pattern changes, so that the worker can judge the state of the cam 21 and thus the state of the circuit breaker operating device.

[0058] In summary, the circuit breaker operating device of this embodiment has two micro switches spaced apart on the circumferential side of the cam 21. As the cam 21 rotates, when the states of the two micro switches change, the control system will send a signal to the drive mechanism 3 only when it receives the signal of the state change of the two micro switches, commanding the drive mechanism 3 to stop working and switch to the second mode. The control of the operating device is more precise and the safety performance is better.

[0059] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit breaker operating device, characterized in that: include: The operating shaft is rotatably arranged around its own axis; A driving mechanism, used for driving the operating shaft to rotate; A driving slider connected to the handle of the circuit breaker, wherein the driving slider is movably arranged along a first direction; a linkage mechanism, disposed between the operating shaft and the driving slider, and configured to drive the driving slider to move along the first direction during the rotation of the operating shaft; A cam, the cam being fixed on the operating shaft, the cam comprising a main body and a protruding portion extending outwardly from the main body; The micro switch has two micro switches arranged at intervals on the circumferential outer side of the cam. When the micro switch corresponds to the position of the protrusion, the micro switch is in a closed state; when the micro switch corresponds to the position of the main body, the micro switch is in an open state; the drive mechanism has a first mode and a second mode. In the first mode, the drive mechanism drives the operating shaft to rotate; in the second mode, the drive mechanism stops driving the operating shaft to rotate, wherein the drive mechanism is configured to switch from the first mode to the second mode when the states of the two micro switches are converted.

2. The circuit breaker operating device according to claim 1, characterized in that: The two micro switches are respectively a first micro switch and a second micro switch. The circuit breaker operating device also includes a control system. The first micro switch and the second micro switch are respectively connected to the control system signals. The driving mechanism is connected to the control system signals.

3. The circuit breaker operating device according to claim 2, characterized in that: When the first micro switch is in contact with the protruding portion, the second micro switch corresponds to the position of the main body; when the first micro switch corresponds to the position of the main body, the second micro switch is in contact with the protruding portion.

4. The circuit breaker operating device according to claim 3, characterized in that: The cam is provided with a protrusion. In the projection of the cam and the operating shaft along the extending direction of the axis of the operating shaft, with the projection point of the axis of the operating shaft as the origin, the central angle corresponding to the protrusion is 180°.

5. The circuit breaker operating device according to claim 1, characterized in that: The linkage mechanism includes a driving groove arranged on the driving slider, and a linkage member fixedly connected to the operating shaft, the driving groove extends along a second direction, the second direction is perpendicular to the first direction, and an insert is provided on the linkage member, and the insert is slidably inserted in the driving groove.

6. The circuit breaker operating device according to claim 1, characterized in that: The driving slider has a first driving surface and a second driving surface, the first driving surface and the second driving surface are arranged at intervals along the first direction, an installation space for inserting the handle of the circuit breaker is formed between the first driving surface and the second driving surface, the first driving surface and the second driving surface respectively extend obliquely toward the circuit breaker simultaneously along the first direction, a first distance is formed between an end of the first driving surface close to the circuit breaker and an end of the second driving surface close to the circuit breaker, a second distance is formed between an end of the first driving surface away from the circuit breaker and an end of the second driving surface away from the circuit breaker, and the first distance is smaller than the second distance.

7. The circuit breaker operating device according to claim 1, characterized in that: A manual operating hole is provided at one end of the operating shaft, the circuit breaker operating device is provided with a manual operating rod, the circuit breaker operating device comprises a shell fixed on the circuit breaker, the operating shaft is located in the shell, and a receiving groove for accommodating the manual operating rod is provided on the outer side of the shell; the manual operating rod has an insertion portion, and the cross-sectional shape of the insertion portion matches the cross-sectional shape of the manual operating hole.

8. The circuit breaker operating device according to claim 7, characterized in that: A through hole connected to the manual operation hole is provided on one side of the shell, and a shielding member is movably provided on the shell. The shielding member has a first position and a second position on the shell. When the shielding member is in the first position, the through hole is blocked by the shielding member, and when the shielding member is in the second position, the through hole is opened.

9. The circuit breaker operating device according to claim 8, characterized in that: The circuit breaker operating device has an electric mode and a manual mode. The circuit breaker operating device has a control switch. The control switch is configured to control the circuit breaker operating device to switch between the electric mode and the manual mode. The control switch is arranged on the movement path of the shielding member. When the shielding member is in the first position, the shielding member does not contact the control switch, and the circuit breaker operating device is in the electric mode; when the shielding member is in the second position, the control switch is triggered, and the circuit breaker operating device is converted to the manual mode.

10. A control method for a circuit breaker operating device, based on the circuit breaker operating device according to claim 2, characterized in that: When the state of the first micro switch does not change, the driving mechanism remains in a working state; When the state of the first micro switch changes, and the state of the second micro switch does not change, the driving mechanism maintains the working state; When the state of the first micro switch changes and the state of the second micro switch changes, the control system sends a signal to the driving mechanism, and the driving mechanism stops working.

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