Single-coil electromagnetic electric operating device

Abstract

A single-coil electromagnetic type electric operating device comprises an electromagnetic mechanism, a first transmission mechanism, a one-way transmission clutch mechanism and a sliding block, the sliding block is arranged in a linear moving mode and can move between a switching-off position and a switching-on position, the electromagnetic mechanism comprises a movable iron core and a single-set electromagnetic coil, the first transmission mechanism comprises a driving rod, and the one-way transmission clutch mechanism is arranged on the driving rod. The movable iron core is connected with the driving rod, the driving rod is connected with the one-way transmission clutch mechanism, the one-way transmission clutch mechanism is connected with the sliding block, the movable iron core drives the driving rod to swing in a reciprocating mode when driven by the electromagnetic coil, and the movable iron core drives the driving rod to drive the one-way transmission clutch mechanism when driven by the electromagnetic coil. The one-way transmission clutch mechanism drives the sliding block to linearly move from an opening position to a closing position or move from the closing position to the opening position, when the movable iron core is reset, the driving rod is driven to reset, the driving rod drives the one-way transmission clutch mechanism, the one-way transmission clutch mechanism does not drive the sliding block to linearly move, and two sets of electromagnetic coils are not needed.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to a single-coil electromagnetic electric operating device. Background Art

[0002] With the development of power system automation and intelligent power equipment, power equipment has gradually realized automation, informationization and intelligent functions such as remote control, remote signaling and remote measurement under the premise of safety and reliability. As a key component of switchgear, circuit breakers need to be able to meet the remote operation mode.

[0003] However, most of the electric operating mechanisms in the current low-voltage industry use motors as driving components, and are equipped with drive and power PCB circuit boards and related transmission, speed change, limit and other mechanisms. The closing and opening operations are achieved through motor drive. This solution requires sensors to sense when the closing and opening are in place, and controls the rotation of the motor through a chip. A long control loop is used to achieve reciprocating motion. The longer the control chain is, the greater the probability of mechanism failure is, and there are problems of complex control and poor reliability.

[0004] There are a small number of electromagnetic electric operating mechanisms currently available, but all of them have a double-coil structure to achieve bidirectional closing and opening operations, which results in large size, complex structure and high cost of the current electric operating mechanisms. Utility Model Content

[0005] The utility model aims to overcome at least one defect of the prior art and provide a single-coil electromagnetic electric operating device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A single-coil electromagnetic electric operating device comprises an electromagnetic mechanism, a first transmission mechanism, a one-way transmission clutch mechanism and a slider, wherein the slider is arranged to move linearly and can move between an opening position and a closing position.

[0008] The electromagnetic mechanism includes a moving iron core and a single set of electromagnetic coils, the first transmission mechanism includes a driving rod, the moving iron core is connected to the driving rod, the driving rod is connected to a one-way transmission clutch mechanism, and the one-way transmission clutch mechanism is connected to a slider,

[0009] When driven by the electromagnetic coil, the moving iron core drives the driving rod to swing back and forth. When driven by the electromagnetic coil, the moving iron core drives the driving rod to drive the one-way transmission clutch mechanism. The one-way transmission clutch mechanism drives the slider to move linearly from the opening position to the closing position, or from the closing position to the opening position. When the moving iron core is reset, it drives the driving rod to reset. The driving rod drives the one-way transmission clutch mechanism, and the one-way transmission clutch mechanism does not drive the slider to move linearly.

[0010] Preferably, the one-way transmission clutch mechanism includes a driving wheel and a follower that are respectively rotatably arranged, and the driving rod is connected to the driving wheel to drive the driving wheel to rotate in opposite first and second directions. When the driving rod rotates in the first direction, it drives the follower to rotate, and when the driving rod rotates in the second direction, it does not drive the follower to rotate. The follower drives the slider to move back and forth in a straight line through the second transmission mechanism.

[0011] Preferably, the one-way transmission clutch mechanism further comprises a first ratchet wheel which is rotatably arranged, the driving wheel is connected to the first ratchet wheel, a first through hole is arranged in the middle of the first ratchet wheel, the first through hole is sleeved on the driven member, a first ratchet tooth is arranged on the inner wall of the first through hole, the driven member is provided with a first pawl and a first ratchet spring connected to the first pawl, and the first ratchet spring drives the first pawl to contact the first ratchet tooth;

[0012] When the driving wheel rotates in a first direction, it drives the first ratchet to rotate forward, and the first ratchet pushes the side of the first pawl, so that the first pawl drives the driven member to rotate. When the driving wheel rotates in a second direction, it drives the first ratchet to rotate in the opposite direction, and the first ratchet pushes the end face of the first pawl to compress the first ratchet spring, so that the first pawl retracts into the driven member to avoid the first ratchet, and the first ratchet does not drive the driven member to rotate.

[0013] Preferably, the one-way transmission clutch mechanism is also provided with a fixed second ratchet, the second ratchet is provided with a second through hole, the second through hole is sleeved on the outside of the driven member, the inner wall of the second through hole is provided with a second ratchet, the driven member is provided with a second pawl and a second ratchet spring connected to the second pawl, the second ratchet spring drives the second pawl to protrude outward and contact with the second ratchet, the direction of the second ratchet is the same as that of the first ratchet, so as to prevent the driven member from rotating in the opposite direction.

[0014] Preferably, the first through hole of the first ratchet wheel is sleeved on the rotating shaft of the driven member, and two pawl grooves are provided on the side of the rotating shaft radially away from the push rod, and the two pawl grooves are used to accommodate the first pawl and the second pawl respectively.

[0015] Preferably, the one-way transmission clutch mechanism also includes a guide plate, a movable shaft and a movable idler wheel, the movable idler wheel is connected to the movable shaft, the guide plate is provided with a movable groove, the movable shaft is inserted into the movable groove, the movable idler wheel is rotatably arranged and can move along the movable groove together with the movable shaft toward and away from the driven member, the driving wheel is connected to the movable idler wheel, when the driving wheel rotates in a first direction, it drives the movable idler wheel and the movable shaft to move toward the driven member, so that the movable idler wheel is meshed with the driven member, and the driving wheel drives the driven member to rotate through the movable idler wheel, and when the driving wheel rotates in a second direction, it drives the movable idler wheel and the movable shaft away from the driven member, so that the movable idler wheel is separated from the driven member, and the driving rod cannot drive the driven member to rotate.

[0016] Preferably, the movable idler wheel is rotatably or fixedly arranged on the movable shaft.

[0017] Preferably, an idler spring is also included, and the idler spring applies a force to the movable idler to approach the driven member.

[0018] Preferably, the speed ratio between the driving wheel and the driven member is greater than 1.

[0019] Preferably, the speed ratio between the driving wheel and the driven member is 6.1 to 6.5, and each rotation of the driving rod by 30 degrees can drive the driven member to rotate more than 180 degrees.

[0020] Preferably, the second transmission mechanism includes a push rod connected to the follower, the push rod is eccentrically arranged on the follower, the slider is provided with a slide groove, the push rod is inserted into the slide groove, the follower rotates unidirectionally to drive the push rod to rotate around the rotation center of the follower, the push rod moves along the slide groove and pushes the slider to slide linearly through the slide groove.

[0021] Preferably, the slide groove is in the shape of an elongated strip, and the length direction of the slide groove is perpendicular to the linear moving direction of the slider.

[0022] Preferably, the driving wheel is an incomplete gear, and the driving wheel comprises a toothed disc and a swing rod connected to the toothed disc, and one end of the swing rod away from the toothed disc is connected to the driving rod via a first shaft.

[0023] Preferably, the swing arm is connected to a second reset spring, and the second reset spring is used to drive the driving wheel to rotate when the moving iron core is reset.

[0024] Preferably, the moving iron core is provided with a driving shaft, and the driving rod is provided with a driving groove for inserting the driving shaft. When the moving iron core moves, the driving shaft pushes the driving groove to drive the driving rod to rotate, and the driving shaft slides along the driving groove.

[0025] Preferably, a controller for supplying power to the electromagnetic coil and a wiring terminal connected to the controller are provided, the wiring terminal comprising a common end and an opening end and a closing end corresponding to the opening position and the closing position of the slider, respectively; when the slider moves to the opening position and the closing position, the handle is driven to open and close the switch electrical appliance, respectively; the controller is provided with a contact piece, and the two ends of the electromagnetic coil are respectively connected to the contact piece and the common end; the contact piece can switch between connecting to the opening end and connecting to the closing end; when the slider moves to the opening position or the closing position, the contact piece is away from the opening end or the closing end corresponding to the opening position or the closing position, and the contact piece will be connected to the other of the opening end or the closing end, and the electromagnetic coil can only be supplied with power by the other of the opening end or the closing end again.

[0026] Preferably, the controller is provided with a toggle rod, which is provided with a toggle end for driving the contact piece to switch between the opening end and the closing end, and a driving end extending outside the controller and cooperating with the slider. The slider moves to the opening position or the closing position and can simultaneously push the driving end, so that the toggle end of the toggle rod drives the contact piece away from the opening end or the closing end corresponding to the opening position or the closing position, and connects with the other of the opening end or the closing end.

[0027] Preferably, the slider includes two side plates arranged opposite to each other, and a top plate connected between the two side plates, the top plate is provided with the slide groove, the inner sides of the two side plates are respectively provided with push plates for pushing the handle to move, the driving end of the lever is inserted between the two side plates, and when the slider moves, the lever is pushed respectively through the two side plates, so that the lever drives the contact piece to switch between the opening end and the closing end.

[0028] Preferably, the slider is connected to a first return spring, and the first return spring is used to drive the slider to move along the operating direction of the handle so that the slider maintains contact with the handle or the follower.

[0029] Preferably, the trajectory of the circular motion of the push rod includes two semicircular trajectories, which are relatively arranged on both sides of the operating direction of the handle. When the push rod moves along one of the semicircular trajectories, it drives the slider to move toward the opening position. When the push rod rotates along the other semicircular trajectory, it drives the slider to move toward the closing position.

[0030] The single-coil electromagnetic electric operating device of the utility model only needs a single set of electromagnetic coils to control the movement of the slider between the closing position and the opening position. Each time the moving iron core of the electromagnetic coil is attracted, it can alternately drive the slider to move to the closing position or the opening position. The slider is not driven when the moving iron core is reset, so two sets of electromagnetic coils are not required, which reduces the size of the electric operating device and has the characteristics of low cost.

[0031] In addition, there is no need for PCB circuit boards or other electronic methods. The electromagnetic mechanism can be controlled and interlocked through contact pieces, and electrical interlocking can be achieved through mechanical means. This can not only further reduce costs, but also does not require sensors to sense whether the switch is in place or not. The control chain is short and not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural schematic diagram of the first embodiment of the single-coil electromagnetic electric operating device of the utility model;

[0033] Figure 2 This is the first embodiment of the one-way transmission clutch mechanism of the utility model;

[0034] Figure 3 It is a schematic diagram of the cooperation between the controller and the slider of the utility model;

[0035] Figure 4 It is the electrical schematic diagram of the controller of the utility model;

[0036] Figure 5 It is a structural schematic diagram of the slider of the utility model;

[0037] Figure 6 It is a structural schematic diagram of the driving rod and the driving wheel of the utility model;

[0038] Figure 7 It is a cross-sectional view of the cooperation between the first ratchet, the second ratchet and the driven member of the utility model;

[0039] Figure 8-9 They are respectively structural schematic diagrams of the first ratchet wheel of the utility model;

[0040] Fig.10 It is a structural schematic diagram of the driven member and the second transmission mechanism of the utility model;

[0041] Fig.11 It is a structural schematic diagram of the second ratchet of the utility model;

[0042] Fig.12 It is a schematic diagram of the cooperation between the support plate and the support shaft of the utility model;

[0043] Fig.13 It is a structural schematic diagram of the second embodiment of the single-coil electromagnetic electric operating device of the utility model, which adopts a different one-way transmission clutch mechanism;

[0044] Fig.14 This utility model hides Fig.13 Schematic diagram of the structure behind the middle guide plate;

[0045] Figure 15-16 They are respectively the schematic diagrams of the cooperation of the driving wheel, the movable idler wheel and the driven member;

[0046] Fig.17 It is another embodiment of the driven member and the second transmission mechanism of the utility model;

[0047] In the figure, the electromagnetic mechanism 1; the slider 3; the first bracket 4; the moving iron core 11; the electromagnetic coil 12; the driving shaft 13; the driving groove 14; the rotating shaft 21; the push rod 22; the crank plate 23; the pawl groove 24; the slide groove 30; the handle 6; the controller 71; the terminal 72; the common terminal 74; the opening terminal 73; the closing terminal 75; the contact piece 76; the lever 77; the side plate 31; the top plate 32; the slide plate 33; the guide plate 34; the guide groove 35; the push plate 300; the first return spring 36; the first spring hole 37; the guide plate 38; the cantilever 39; the driving rod 51; the driving wheel 52; the follower 53; Toothed disc 521; swing lever 522; first shaft 523; second spring hole 524; second return spring 525; first ratchet 54; first ratchet tooth 541; first pawl 542; first ratchet spring 543; second ratchet 55; second ratchet tooth 551; second pawl 552; second ratchet spring 553; housing 8; operating disk 81; operating handle 82; indicator arrow 83; support shaft 84; avoidance hole 85; support plate 381; movable shaft 56; movable idler wheel 57; idler wheel spring 58; movable groove 380; second support plate 382; support column 383; support groove 384. DETAILED DESCRIPTION

[0048] The following is a further description of the specific implementation of the single-coil electromagnetic electric operating device of the present utility model in conjunction with the embodiments given in the accompanying drawings. The single-coil electromagnetic electric operating device of the present utility model is not limited to the description of the following embodiments.

[0049] like Figure 1-2 As shown, the single-coil electromagnetic electric operating device of the utility model includes an electromagnetic mechanism 1, a first transmission mechanism, a one-way transmission clutch mechanism and a slider 3, which can move between an opening position and a closing position, and is used to drive a handle 6 to open and close the switch. The slider 3 is provided with a driving part for driving the handle 6. The electromagnetic mechanism 1 includes a moving iron core 11 and a single set of electromagnetic coils 12. When the electromagnetic coils 12 are energized, the electromagnetic force drives the moving iron core 11 to move. The first transmission mechanism includes a driving rod 51 Figure 6 The moving iron core 11 is connected to the driving rod 51, the one-way transmission clutch mechanism is connected to the driven member 53, the driving rod 51 is connected to the one-way transmission clutch mechanism, and the one-way transmission clutch mechanism is connected to the slider 3; the moving iron core 11 drives the driving rod 51 to swing back and forth when it is attracted and reset by the electromagnetic coil 12, and the moving iron core 11 drives the driving rod 51 to drive the one-way transmission clutch mechanism when it is driven by the electromagnetic coil 12. The one-way transmission clutch mechanism drives the slider 3 to move linearly from the opening position to the closing position to close the switch electrical appliance, or from the closing position to the opening position to close the switch electrical appliance. When the moving iron core 11 is reset, it drives the driving rod 51 to reset, and the driving rod 51 drives the one-way transmission clutch mechanism, but the one-way transmission clutch mechanism is idling, and the one-way transmission clutch mechanism does not drive the slider 3 to move linearly.

[0050] In this way, the attraction action of the moving iron core 11 of the electromagnetic mechanism alternately realizes the closing and opening of the circuit breaker. During the reset action, the slider 3 is not driven to move through the one-way transmission clutch mechanism. The single-coil electromagnetic electric operating device of this embodiment only needs a single set of electromagnetic coils to control the movement of the slider 3 between the closing position and the opening position. Two sets of electromagnetic coils are not required, which reduces the size of the electric operating device and has the characteristics of low cost.

[0051] The one-way transmission clutch mechanism includes a driving wheel 52 and a driven member 53 which are respectively arranged to rotate. The driving rod 51 is connected to the driving wheel 52, driving the driving wheel 52 to rotate in opposite first and second directions. When the driving rod 51 rotates in the first direction, the driven member 53 is driven to rotate. When the driving rod 51 rotates in the second direction, the driven member 53 is not driven to rotate. The driving wheel 52, as an input member of the one-way transmission clutch mechanism, can be driven by the driving rod 51 to rotate clockwise and counterclockwise. The driven member 53, as an output member of the one-way transmission clutch mechanism, can only drive the driven member 53 to rotate in one direction. The one-way rotation of the driven member 53 is used to drive the slider 3 to move linearly. It should be noted that the first direction can be clockwise or counterclockwise, and the corresponding second direction is the opposite counterclockwise or clockwise direction.

[0052] See also Figure 1-12 The first embodiment shown, referring to Figure 1-3 The single-coil electromagnetic electric operating device of this embodiment is installed above the circuit breaker, including a first bracket 4, a slider 3 is linearly slidably arranged on the first bracket 4, the first bracket 4 limits the slider 3 to move only along the operating direction of the handle 6, the slider 3 is arranged corresponding to the handle 6 of the circuit breaker, the electromagnetic mechanism 1, the first transmission mechanism, the one-way transmission clutch mechanism and the slider 3 are installed on the first bracket 4, the follower 53 is arranged corresponding to the slider 3 and is located above the slider 3, the electromagnetic mechanism 1 is located on the left side of the slider 3, and a controller 71 for powering the electromagnetic coil 12 is provided on the right side of the slider 3.

[0053] like Figure 2 , 6 As shown, the first transmission mechanism includes a driving rod 51, the moving iron core 11 is connected to the driving rod 51, and the driving wheel 52 is connected to the driving rod 51. When the moving iron core 11 moves linearly, the driving wheel 52 is driven to rotate clockwise or counterclockwise through the driving rod 51. It can be understood that the first transmission mechanism can also include more connecting rods or gears, and the driving rod 51 can directly or indirectly drive the driving wheel 52 to rotate.

[0054] like Figure 7-9Another embodiment of a one-way transmission clutch mechanism is shown. The one-way transmission clutch mechanism of this embodiment is based on the ratchet principle. The one-way transmission clutch mechanism is provided with a driven member 53 and a first ratchet 54 that is rotatably arranged. The driving wheel 52 is connected to the first ratchet 54 and can drive the first ratchet 54 to rotate in the forward and reverse directions. In this embodiment, the first ratchet 54 is provided with teeth 545. The driving wheel 52 is engaged with the first ratchet 54 to directly drive the first ratchet 54 to rotate. A first through hole is provided in the middle of the first ratchet 54. The first through hole is sleeved on the driven member 53. A first ratchet tooth 541 is provided on the inner wall of the first through hole. The driven member 53 is provided with a first pawl 542 and a first ratchet pawl 545 that is engaged with the first ratchet 54. The first ratchet spring 543 connected to the pawl 542 drives the first ratchet spring 543 to protrude outward and contact the first ratchet tooth 541; when the driving wheel 52 rotates in the first direction, it drives the first ratchet 54 to rotate forward, and the first ratchet tooth 541 pushes the side of the first ratchet 542, so that the first ratchet 542 drives the driven member 53 to rotate; when the driving wheel 52 rotates in the second direction, it drives the first ratchet 54 to rotate in the opposite direction, and the first ratchet tooth 541 pushes the end surface of the first ratchet 542 to compress the first ratchet spring 543, so that the first ratchet 542 retracts into the driven member 53 to avoid the first ratchet tooth 541, and the first ratchet 54 does not drive the driven member 53 to rotate. As other embodiments, more gears can be provided, and the driving wheel 52 can indirectly drive the first ratchet 54 to rotate.

[0055] When the first ratchet 54 rotates counterclockwise and clockwise, the side inclination angles of the first ratchet tooth 541 on both sides driving the first pawl 542 are different, and / or the side inclination angles of the first pawl 542 on both sides cooperating with the first ratchet tooth 541 are different; so that the side surface of one side of the first ratchet tooth 541 can push the first pawl 542 without compressing the first ratchet spring 543, while the other side surface will push the first pawl 542 to compress the first ratchet spring 543.

[0056] Further, the driving wheel 52 is an incomplete gear, and the driving wheel 52 includes a toothed disc 521 and a swinging rod 522 connected to the toothed disc 521, the toothed disc 521 is meshed with the teeth 545 of the first ratchet 54, and the end of the swinging rod 522 away from the toothed disc 521 is connected to the driving rod 51 through the first shaft 523, and the driving rod 51 drives the driving wheel 52 to rotate through the first shaft 523, and the cross section of the first shaft 523 is a non-circular special-shaped structure, and the cross section of the first shaft 523 in this embodiment is D-shaped. Obviously, the driving wheel 52 can also be a complete gear. The speed ratio of the driving wheel 52 to the first ratchet 54 is greater than 1, and the speed ratio of the first ratchet 54 to the driven member 53 is equal to 1. Preferably, the speed ratio of the driving wheel 52 and the first ratchet 54 is 6.1-6.5, and the speed ratio of the driving wheel 52 and the first ratchet 54 is adjusted by the cooperation between the toothed disc 521 and the teeth 545, so that each time the driving wheel 52 rotates 30 degrees, it can drive the first ratchet 54 to rotate more than 180 degrees, and then drive the driven member 53 to rotate more than 180 degrees. For example, the speed ratio is 6.5. By reasonably setting the speed ratio, each time the driving wheel 52 rotates 30 degrees, it can drive the driven member 53 to rotate 195 degrees to complete the opening stroke or closing stroke. Each time the electromagnetic coil 12 attracts the moving iron core 11, the rotation angle of the driven member 53 is greater than or equal to 180 degrees, ensuring that each action of the moving iron core 11 can drive the slider 3 to move the complete opening stroke or closing stroke, so that the opening action and the closing action are performed alternately.

[0057] Furthermore, the swing lever 522 is connected to a second reset spring 525, and the second reset spring 525 is used to drive the driving wheel 52 to rotate when the moving iron core 11 is reset. The swing lever 522 is provided with a plurality of second spring holes 524 arranged in a radial direction, and the second spring holes 524 are used to connect the second reset spring 525, and the second reset spring 525 is used to drive the driving wheel 52 to reset. At the same time, the plurality of second spring holes 524 can adjust the tension of the second reset spring 525, and the second reset spring 525 can be connected to which second spring hole 524 as needed.

[0058] Furthermore, the moving iron core 11 is provided with a driving shaft 13 , and the driving rod is provided with a driving slot 14 for inserting the driving shaft 13 . When the moving iron core 11 moves, the driving shaft 13 pushes the driving slot 14 to drive the driving rod to rotate, and the driving shaft 13 slides along the driving slot 14 .

[0059] like Figure 3 , 5As shown in Figures 10, the slider 3 is linearly slidably arranged on the first bracket 4, and the follower 53 drives the slider 3 to move back and forth linearly through the second transmission mechanism to switch between the open position and the closed position. In this embodiment, the second transmission mechanism includes a push rod 22 connected to the follower 53, and the push rod 22 is eccentrically arranged on the follower 53. The slider 3 is provided with a slide groove 30, and the push rod 22 is inserted into the slide groove 30. The follower 53 rotates unidirectionally to drive the push rod 22 to rotate around the rotation center of the follower 53, and the push rod 22 moves along the slide groove 30 and pushes the slider 3 to slide linearly through the slide groove 30. The follower 53 described in this embodiment includes a crank plate 23 connected between the rotating shaft 21 and the push rod 22. The push rod 22 is eccentrically arranged relative to the rotation axis of the rotating shaft 21. When the follower 53 rotates, it drives the push rod 22 to rotate around the rotating shaft 21, and at the same time moves along the slide groove 30 to push the slider 3. The rotating shaft 21 and the push rod 22 are relatively arranged on two side surfaces of the crank plate 23; the follower 53, the push rod 22, the rotating shaft 21 and the crank plate 23 can be arranged as a whole, or they can be arranged separately and connected.

[0060] like Figure 5 As shown, the slider 3 includes two side plates 31 arranged opposite to each other, and a top plate 32 connected between the two side plates 31, the top plate 32 is provided with a slide groove 30, the push rod 22 of the follower 53 is inserted into the slide groove 30, the two side plates 31 are respectively provided with a slide plate 33, the opposite ends of the slide plate 33 are respectively provided with a bent guide plate 34, the first bracket 4 is provided with a guide groove 35, the guide plate 34 is used to be inserted into the guide groove 35 for sliding cooperation, so that the slider 3 can only move along the operating direction of the handle 6, and the inner sides of the two side plates 31 are respectively provided with a push plate 300 for pushing the handle 6 to move, and the push plate 300 serves as a driving part of the handle 6. Of course, as other embodiments, a slide groove can also be provided on the slider 3, the handle 6 is inserted into the slide groove, and the side wall of the slide groove is used as a driving part to drive the handle 6 to perform the opening and closing operations.

[0061] The electromagnetic coil 12 drives the driven member 53 of the one-way transmission clutch mechanism to rotate in one direction through the driving rod 51, that is, it can only rotate clockwise or counterclockwise. The circular motion trajectory of the push rod 22 on the driven member 53 includes two semicircular trajectories. Each time the electromagnetic coil 12 drives the moving iron core 11, it drives the push rod 22 to advance a semicircular trajectory. The two semicircular trajectories are relatively arranged on both sides of the operating direction of the handle 6. When the push rod 22 moves along one of the semicircular trajectories, it drives the slider 3 to move to the opening position. When the push rod 22 rotates along the other semicircular trajectory, it drives the slider 3 to move to the closing position. The opening position and the closing position are relatively arranged at both ends of the operating direction of the handle 6. The slide groove 30 is long and strip-shaped, and the length direction of the slide groove 30 is perpendicular to the operating direction of the handle 6.

[0062] Furthermore, the slider 3 is connected to a first return spring 36. A first spring hole 37 for connecting the first return spring 36 is provided on the top plate 32 of the slider 3. The first return spring 36 is used to drive the slider 3 to move along the operating direction of the handle 6. Since there is a gap between the slider 3 and the handle 6, the first return spring 36 can enable the upper end surface of the slider 3 to maintain contact with the follower 53, so that the external mechanical indication is more accurate. The first return spring 36 of this embodiment is connected to the guide plate 38. In other embodiments, the first return spring 36 can also be connected to the first bracket 4.

[0063] like Figure 7 , 11 -12, the one-way transmission clutch mechanism is also provided with a second ratchet 55 fixed on the guide plate 38, the second ratchet 55 is provided with a second through hole, the second through hole is sleeved on the outside of the follower 53, the inner wall of the second through hole is provided with a second ratchet 551, the follower 53 is provided with a second pawl 552 and a second ratchet spring 553 connected to the second pawl 552, the second ratchet spring 553 is used to drive the second pawl 552 to protrude outward and contact the second ratchet 551, the direction of the second ratchet 551 is the same as that of the first ratchet 541, the fixed second ratchet 55 is used to prevent the follower 53 from rotating in the opposite direction, especially during the resetting process of the moving iron core 11, the moving iron core 11 drives the follower 53 to rotate clockwise, and the first ratchet 541 pushes the end face of the first pawl 542 to compress the first ratchet spring 543, and the second ratchet 551 is used to press against the side of the second pawl 552, thereby preventing the follower 53 from rotating in the opposite direction. In this embodiment, the first ratchet 54 and the second ratchet 55 are stacked, the first ratchet 54 is arranged above the second ratchet 55, a positioning groove is arranged on the top side of the second ratchet 55, the second ratchet 55 is sleeved on the follower 53, and at least part of it is located in the positioning groove, the overall structure is compact and firmly assembled. Of course, as other embodiments, the second ratchet 55 can also be arranged above the first ratchet 54.

[0064] like Fig.10 As shown, the first through hole of the first ratchet wheel 54 is sleeved on the rotating shaft 21 of the driven member 53, and the rotating shaft 21 is provided with two pawl grooves 24, which are respectively used to accommodate the first pawl 542 and the second pawl 552. Preferably, the two pawl grooves 24 are both arranged on the side of the rotating shaft 21 away from the push rod 22 in the radial direction, so that the force on the driven member 53 can be more balanced.

[0065] like Figure 1As shown, the electric operating device is provided with a housing 8, and an operating disk 81 fixedly connected to the driven member 53 is provided on the housing 8. A support shaft 84 is provided on the driven member 53 of this embodiment to connect with the operating disk 81, or the support shaft 84 may not be provided. Other structures are provided on the operating disk 81 to be inserted into the housing 8 and connected with the driven member 53. An operating handle 82 and an indication arrow 83 are provided on the operating disk 81. An indication mark corresponding to the indication arrow 83 is provided on the housing 8, which is not shown in the figure. The indication mark may be a switch-off mark and a switch-on mark. The driven member 53 drives the handle 6 to move to the switch-off and switch-on through the slider 3, and drives the operating disk 81 to rotate, so that the indication arrow 83 points to the corresponding switch-off mark or switch-on mark. In addition, the operating handle 82 on the operating disk 81 can be held, and the operating disk 81 can be manually rotated to drive the driven member 53 to rotate, so as to drive the handle 6 to switch-off and switch-on. By integrating the indication arrow 83 and the handle 6 into the operating disk 81, it is not necessary to use the existing two parts of the indication disk and the handle 6, which not only reduces the number of parts, but also has the characteristics of aesthetics.

[0066] Furthermore, a support shaft 84 for connecting to the operating disk 81 is provided on the side of the rotating shaft 21 away from the crank plate 23 , and the transverse cross section of the support shaft 84 is D-shaped. An avoidance hole 85 for passing the support shaft 84 is provided in the center of the follower 53 .

[0067] like Fig.12 As shown, the support shaft 84 can also be provided with a hexagonal groove connected to the operating disk 81, and the side of the guide plate 38 away from the first bracket 4 is provided with a support plate 381, and the support plate 381 is provided with a support hole, and the support hole is sleeved on the end of the support shaft 84 away from the rotating shaft 21, and the support plate 381 is used to provide support for the support shaft 84, so that the forces at both ends of the crank mechanism follower 53 are kept balanced, and the crank mechanism follower 53 is prevented from getting stuck. On the basis of connecting the operating disk 81, the support shaft 84 can also play a role in supporting the crank mechanism follower 53. The support plate 381 of this embodiment is installed separately on the guide plate 38, and the support plate 381 can also be a structure formed by bending the guide plate 38 in one piece, and the support plate 381 can also be installed on the first bracket 4 or formed in one piece by the first bracket 4, and the support hole can also be a U-shaped or C-shaped structure. Of course, the operating disk 81 can also be not provided, and the support shaft 84 cooperates with the support plate 381 to provide support for the crank mechanism follower 53, which all belong to the protection scope of the utility model.

[0068] like Figure 1-4As shown, the electric operating device is also provided with a controller 71 for supplying power to the electromagnetic coil 12, and a wiring terminal 72 connected to the controller 71, the wiring terminal 72 includes a common terminal 74 and an opening terminal 73 and a closing terminal 75 corresponding to the opening position and the closing position of the slider 3, respectively. When the slider 3 moves to the opening position and the closing position, it drives the handle 6 to open and close respectively. The controller 71 is provided with a contact piece 76, and the two ends of the electromagnetic coil 12 are respectively connected to the contact piece 76 and the common terminal 74, and the contact piece 76 can switch between connecting to the opening terminal 73 and connecting to the closing terminal 75. When the slider 3 moves to the opening position or the closing position, the contact piece 76 can be separated from the corresponding opening terminal 73 or the closing terminal 75, so that the corresponding opening terminal 73 or the closing terminal 75 stops supplying power to the electromagnetic coil 12, and the contact piece 76 will be connected to the other of the opening terminal 73 or the closing terminal 75, and the electromagnetic coil 12 can only be supplied with power by the other of the opening terminal 73 or the closing terminal 75 again. This embodiment does not require a PCB circuit board or other electronic methods. The electromagnetic mechanism 1 can be controlled and interlocked through a pair of contact pieces 76. Electrical interlocking is achieved through mechanical means, which can not only further reduce costs, but also does not require sensors to sense whether the switch is in place or not. The control chain is short and not prone to failure.

[0069] The slider 3 can directly or indirectly drive the contact piece 76. In this embodiment, the slider 3 drives the contact piece 76 through the lever 77. Further, the controller 71 is provided with a lever 77, and the lever 77 is provided with a toggle end for driving the contact piece 76 to switch between the opening end 73 and the closing end 75, and a driving end extending outside the controller 71 to cooperate with the slider 3. The slider 3 moves to the opening position and pushes the driving end at the same time, so that the toggle end of the lever 77 drives the contact piece 76 away from the opening end 73 corresponding to the opening position and connects with the closing end 75; the slider 3 moves to the closing position and pushes the driving end at the same time, so that the toggle end of the lever 77 drives the contact piece 76 away from the closing end 75 corresponding to the closing position and connects with the opening end 73. For example, the slider 3 moves to the closing position, driving the handle 6 to close the switch, and the slider 3 pushes the lever 77 to separate the contact piece 76 from the closing end 75 and contact the opening end 73. The contact piece 76 separates from the closing end 75, stops supplying power to the electromagnetic coil 12, and the electromagnetic coil 12 will not be supplied with power when the closing end 75 is energized, and the contact piece 76 contacts the opening end 73. At this time, the electromagnetic coil 12 will only be supplied with power when the opening end 73 is energized. The electrical interlocking is achieved by mechanical means, which can further reduce the cost. Preferably, the rated voltage of the electromagnetic coil 12 is AC220V or AC400V. It is understandable that the connection mode and arrangement mode of the terminal block 72 can be adjusted, and the contact piece 76 can be controlled by the lever 77 to select the power supply for the electromagnetic coil 12. Of course, other methods can also be used to replace the lever 77, such as setting a micro switch or a sensor, and controlling the switching of the contact piece 76 by the micro switch or the sensor, which all belong to the protection scope of the utility model. In addition, since the power supply to the electromagnetic coil 12 is cut off by the controller 71 when the handle 6 is in place, the follower 53 can stop rotating when it rotates 180 degrees, and will not continue to rotate even if the designed rotation angle is greater than 180 degrees.

[0070] like Figure 3 As shown, the driving end of the lever 77 of the controller 71 is inserted between the two side plates 31. When the slider 3 moves, the lever 77 is pushed by the two side plates 31 respectively, so that the lever 77 drives the contact piece 76 to switch between the opening end 73 and the closing end 75.

[0071] Furthermore, at least one of the two side plates 31 is provided with a cantilever 39, and the distance from the cantilever 39 to the other side plate 31 is not equal to the distance between the two side plates 31. The cantilever 39 is used to replace the side plate 31 where it is located to push the driving end of the lever 77, so that the slider 3 can push the lever 77 at a predetermined position, avoiding the inability to push the lever 77 due to the size of the slider 3.

[0072] The single-coil electromagnetic electric operating device of the utility model only needs to be provided with a single set of electromagnetic coils 12. The one-way transmission clutch mechanism will not drive the driven member 53 to rotate when the moving iron core 11 is reset. Only when the electromagnetic coil 12 is energized to drive the moving iron core 11, the driven member 53 of the one-way transmission clutch mechanism will be driven to rotate. When the electromagnetic coil 12 is powered off and the moving iron core 11 is reset under the drive of the reset spring, the driven member 53 of the one-way transmission clutch mechanism will not be driven to rotate, thereby realizing the one-way rotation of the driven member 53. When the electromagnetic mechanism 1 is energized, the driven member 53 of the one-way transmission clutch mechanism will be driven to rotate first by driving the moving iron core 11. The rod 51 converts the linear motion of the moving iron core 11 into the circular motion of the follower 53, and then converts the circular motion of the follower 53 into the linear motion along the operating direction of the handle 6 through the slider 3, so that the slider 3 drives the handle 6 to perform the opening and closing operations. Since only a single set of electromagnetic coils 12 is needed to control the slider 3 to move between the closing position and the opening position, two sets of electromagnetic coils 12 are not needed to control the slider 3 to move to the closing position and the opening position respectively, thereby reducing the number of electromagnetic coils 12 and having the characteristics of simple structure and low cost.

[0073] See also Figure 13-17 The second embodiment shown in the figure is different from the first embodiment mainly in the one-way transmission clutch mechanism. Figure 14-17 As shown, the one-way transmission clutch mechanism of this embodiment includes a driving wheel 52, a guide plate 38, a movable shaft 56 and a movable idler wheel 57, wherein the movable idler wheel 57 is connected to the movable shaft 56, and the guide plate 38 is provided with a movable groove 380, and the movable groove 380 is used to limit the movable shaft 56 so that the movable shaft 56 moves in the direction close to and away from the driven member 53, and the movable shaft 56 is inserted into the movable groove 380, and the movable idler wheel 57 is rotatably arranged and can move along the movable groove 380 together with the movable shaft 56 toward the direction close to and away from the driven member 53. The movable idler wheel 57 is connected, and when the driving wheel 52 rotates in a first direction, it drives the movable idler wheel 57 and the movable shaft 56 to move toward the direction close to the driven member 53, so that the movable idler wheel 57 is meshed with the driven member 53, and the driving wheel 52 drives the driven member 53 to rotate through the movable idler wheel 57. When the driving wheel 52 rotates in a second direction, it drives the movable idler wheel 57 and the movable shaft 56 away from the driven member 53, so that the movable idler wheel 57 is separated from the driven member 53, and the movable idler wheel 57 is idling, and the driving rod 51 cannot drive the driven member 53 to rotate, thereby realizing a one-way transmission clutch mechanism in which the driven member 53 can only rotate in one direction.

[0074] In the one-way transmission clutch mechanism of this embodiment, the movable idler wheel 57 controls the moving direction by the rotation direction, and the movable shaft 56 and the movable groove 380 are guided and limited, so that only when the driving wheel 52 rotates in the first direction, it will drive the movable idler wheel 57 to approach the driven member 53 and mesh with the driven member 53 for transmission, and when rotating in the second direction, the movable idler wheel 57 is driven to separate from the driven member 53 and not transmit the power. The one-way transmission is realized without the ratchet principle, and has the characteristics of simple structure and reliable transmission. At the same time, the movable idler wheel 57 is separated from the driven member 53, and no idling noise or wear is generated.

[0075] like Fig.15 As shown, the driving wheel 52 rotates clockwise, driving the movable idler wheel 57 to rotate counterclockwise and driving the movable idler wheel 57 to move toward the direction close to the driven member 53. The forces acting on the movable idler wheel 57 from the driving wheel 52 and the driven member 53 are F1 and F2 respectively, wherein the combined force of F1 and F2 is F 合 , F 合 The direction is toward the meshing direction of the movable idler wheel 57 and the driven member 53. In the figure, the movable idler wheel 57 and the driven member 53 are already in contact, so the movable idler wheel 57 and the driven member 53 can be reliably meshed. When the movable idler wheel 57 and the driven member 53 are not in contact, the movable idler wheel 57 can be driven to move toward the direction close to the driven member 53, that is, the movable idler wheel 57 and the movable shaft 56 move along the movable groove 380 close to the driven member 53, so that the movable idler wheel 57 and the driven member 53 are in contact, and then the resultant force is F. 合 Under the action of gearing, the movable groove 380 plays a guiding and limiting role.

[0076] like Fig.16 As shown, the driving wheel 52 rotates counterclockwise, driving the movable idler wheel 57 to rotate clockwise and drive the movable idler wheel 57 to move away from the driven member 53. The forces acting on the movable idler wheel 57 from the driving wheel 52 and the driven member 53 are F1 and F2 respectively, wherein the combined force of F1 and F2 is F 合 , F 合 The movable idler wheel 57 and the movable shaft 56 move in the direction away from the driven member 53 along the movable groove 380, so that the movable idler wheel 57 is separated from the driven member 53 and the meshing is released.

[0077] Further, the angle α between the line connecting the rotation center of the driven member 53 and the rotation center of the movable idler wheel 57 and the moving direction of the movable shaft 56 is an oblique angle, that is, the angle α between the line connecting the rotation center of the driven member 53 and the rotation center of the movable idler wheel 57 and the length direction of the movable groove 380 is an oblique angle. By setting the angle α to an oblique angle, the F of the movable idler wheel 57 can be reduced. 合 It is more reasonable to allow the movable idler wheel 57 to mesh with the driven member 53 reliably.

[0078] like Figure 13-14 As shown, the movable idler wheel 57 is arranged on the movable shaft 56, and can be rotatably connected or fixedly connected, that is, the movable idler wheel 57 is rotatably arranged on the movable shaft 56, moves with the movable shaft 56 and the movable idler wheel 57 rotates around the movable shaft 56, or, the movable idler wheel 57 is fixedly arranged on the movable shaft 56, the movable idler wheel 57 and the movable shaft 56 move and rotate synchronously, and the movable idler wheel 57 and the movable shaft 56 are integrally formed or plug-connected, all of which belong to the protection scope of the present utility model.

[0079] Furthermore, a second support plate 382 is provided opposite to the guide plate 38, and the second support plate 382 is connected to the guide plate 38 through a support column 383. A support groove 384 corresponding to the movable groove 380 is provided on the second support plate 382, ​​and the movable idler wheel 57 is arranged between the second support plate 382 and the guide plate 38. The two ends of the movable shaft 56 are respectively inserted into the movable groove 380 and the support groove 384. The function of the support groove 384 is the same as that of the movable groove 380, and is used to limit the movable shaft 56 so that the movable shaft 56 moves in the direction of approaching and moving away from the driven member 53. The support groove 384 and the movable groove 380 can cooperate to support the two ends of the movable shaft 56, thereby avoiding the problem of unbalanced force when only one end of the movable shaft 56 is inserted into the movable groove 380, avoiding the problem of skewing of the movable shaft 56, and preventing the movable idler wheel 57 from getting stuck.

[0080] Furthermore, the one-way transmission clutch mechanism is provided with an idler spring 58, and also includes an idler spring 58, which applies a force to the movable idler 57 to approach the follower 53. In this embodiment, the idler spring 58 is connected between the movable idler 57 and the second support plate 382, ​​and the idler spring 58 drives the movable idler 57 to move close to the follower 53, and keeps the movable idler 57 in contact with the follower 53. When the movable shaft 56 drives the movable idler 57 away from the follower 53, the movable idler 57 pulls the idler spring 58. Of course, the idler spring 58 may not be provided, or the idler spring 58 may be provided in other ways such as a torsion spring, which all fall within the protection scope of the present utility model.

[0081] Further, the speed ratio of the driving wheel 52 to the movable idler wheel 57 is greater than 1. Preferably, the speed ratio of the driving wheel 52 to the movable idler wheel 57 is 6.1 to 6.5, and the speed ratio of the movable idler wheel 57 to the driven member 53 is 1. By reasonably setting the speed ratio, each time the electromagnetic coil 12 attracts the moving iron core 11, the rotation angle of the movable idler wheel 57 is greater than or equal to 180 degrees.

[0082] like Fig.17As shown, the driving structure between the follower 53 and the slider 3 of this embodiment is similar to that of the first embodiment. The second transmission mechanism includes a push rod 22. The follower 53 is arranged on the rotating shaft 21. The rotating shaft 21 is connected to the push rod 22 through the crank plate 23. The push rod 22 is eccentrically arranged relative to the rotation axis of the rotating shaft 21. When the follower 53 rotates, the push rod 22 is driven to rotate around the rotating shaft 21, and the slider 3 is moved along the slide groove 30. Preferably, a roller is provided on the push rod 22, and the handle 6 is driven by the roller, which protects the handle 6 and makes the transmission smoother. The follower 53, the push rod 22, the rotating shaft 21 and the crank plate 23 can be arranged as a whole, or they can be arranged separately and connected.

[0083] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0084] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A single-coil electromagnetic electric operating device, comprising an electromagnetic mechanism (1), a first transmission mechanism, a one-way transmission clutch mechanism and a slider (3), wherein the slider (3) is arranged to move linearly and can move between an opening position and a closing position, characterized in that: The electromagnetic mechanism (1) comprises a moving iron core (11) and a single set of electromagnetic coils (12); the first transmission mechanism comprises a driving rod (51); the moving iron core (11) is connected to the driving rod (51); the driving rod (51) is connected to a one-way transmission clutch mechanism; the one-way transmission clutch mechanism is connected to a slider (3); When the moving iron core (11) is driven by the electromagnetic coil (12), it drives the driving rod (51) to swing back and forth. When the moving iron core (11) is driven by the electromagnetic coil (12), it drives the driving rod (51) to drive the one-way transmission clutch mechanism. The one-way transmission clutch mechanism drives the slider (3) to move linearly from the opening position to the closing position, or from the closing position to the opening position. When the moving iron core (11) is reset, it drives the driving rod (51) to reset. The driving rod (51) drives the one-way transmission clutch mechanism, and the one-way transmission clutch mechanism does not drive the slider (3) to move linearly.

2. The single-coil electromagnetic electric operating device according to claim 1, characterized in that: The one-way transmission clutch mechanism comprises a driving wheel (52) and a driven member (53) which are respectively rotatably arranged. The driving rod (51) is connected to the driving wheel (52) to drive the driving wheel (52) to rotate in opposite first and second directions. When the driving rod (51) rotates in the first direction, the driven member (53) is driven to rotate. When the driving rod (51) rotates in the second direction, the driven member (53) is not driven to rotate. The driven member (53) drives the slider (3) to reciprocate linearly through the second transmission mechanism.

3. The single-coil electromagnetic electric operating device according to claim 2, characterized in that: The one-way transmission clutch mechanism also includes a first ratchet (54) that is rotatably arranged, the driving wheel (52) is connected to the first ratchet (54), a first through hole is provided in the middle of the first ratchet (54), the first through hole is sleeved on the driven member (53), a first ratchet tooth (541) is provided on the inner wall of the first through hole, the driven member (53) is provided with a first pawl (542) and a first ratchet spring (543) connected to the first pawl (542), and the first ratchet spring (543) drives the first pawl (542) to contact the first ratchet tooth (541); When the driving wheel (52) rotates in a first direction, it drives the first ratchet (54) to rotate in a forward direction, and the first ratchet tooth (541) pushes the side surface of the first pawl (542), so that the first pawl (542) drives the driven member (53) to rotate. When the driving wheel (52) rotates in a second direction, it drives the first ratchet (54) to rotate in a reverse direction, and the first ratchet tooth (541) pushes the end surface of the first pawl (542) to compress the first ratchet spring (543), so that the first pawl (542) retracts into the driven member (53) to avoid the first ratchet tooth (541), and the first ratchet (54) does not drive the driven member (53) to rotate.

4. The single-coil electromagnetic electric operating device according to claim 3, characterized in that: The one-way transmission clutch mechanism is also provided with a fixed second ratchet (55), the second ratchet (55) is provided with a second through hole, the second through hole is sleeved on the outside of the driven member (53), the inner wall of the second through hole is provided with a second ratchet tooth (551), the driven member (53) is provided with a second pawl (552) and a second ratchet spring (553) connected to the second pawl (552), the second ratchet spring (553) drives the second pawl (552) to protrude outward and contact with the second ratchet tooth (551), the direction of the second ratchet tooth (551) is the same as the direction of the first ratchet tooth (541), and is used to prevent the driven member (53) from rotating in the reverse direction.

5. The single-coil electromagnetic electric operating device according to claim 4, characterized in that: The first through hole of the first ratchet wheel (54) is sleeved on the rotating shaft (21) of the driven member (53), and two ratchet grooves (24) are provided on the side of the rotating shaft (21) radially away from the push rod (22), and the two ratchet grooves (24) are used to accommodate the first ratchet (542) and the second ratchet (552) respectively.

6. The single-coil electromagnetic electric operating device according to claim 2, characterized in that: The one-way transmission clutch mechanism further comprises a guide plate (38), a movable shaft (56) and a movable idler wheel (57), wherein the movable idler wheel (57) is connected to the movable shaft (56), the guide plate (38) is provided with a movable groove (380), the movable shaft (56) is inserted into the movable groove (380), the movable idler wheel (57) is rotatably arranged and can move along the movable groove (380) together with the movable shaft (56) in a direction close to the driven member (53) and away from the driven member (53), and the driving wheel (52) is connected to the movable idler wheel (57). When the driving wheel (52) rotates in a first direction, it drives the movable idler wheel (57) and the movable shaft (56) to move toward the driven member (53), so that the movable idler wheel (57) meshes with the driven member (53), and the driving wheel (52) drives the driven member (53) to rotate through the movable idler wheel (57). When the driving wheel (52) rotates in a second direction, it drives the movable idler wheel (57) and the movable shaft (56) away from the driven member (53), so that the movable idler wheel (57) and the driven member (53) are separated, and the driving rod (51) cannot drive the driven member (53) to rotate.

7. The single-coil electromagnetic electric operating device according to claim 6, characterized in that: The movable idler wheel (57) is rotatably or fixedly arranged on the movable shaft (56).

8. The single-coil electromagnetic electric operating device according to claim 6, characterized in that: The invention also includes an idler spring (58) which applies a force to the movable idler (57) to move it closer to the follower (53).

9. The single-coil electromagnetic electric operating device according to claim 2, characterized in that: The speed ratio between the driving wheel (52) and the driven member (53) is greater than 1.

10. The single-coil electromagnetic electric operating device according to claim 9, characterized in that: The speed ratio between the driving wheel (52) and the driven member (53) is 6.1 to 6.5, and each time the driving rod (51) rotates 30 degrees, it can drive the driven member (53) to rotate more than 180 degrees.

11. The single-coil electromagnetic electric operating device according to claim 2, characterized in that: The second transmission mechanism comprises a push rod (22) connected to a driven member (53), the push rod (22) being eccentrically arranged on the driven member (53), the slider (3) being provided with a slide groove (30), the push rod (22) being inserted into the slide groove (30), the driven member (53) rotating unidirectionally drives the push rod (22) to rotate around the rotation center of the driven member (53), the push rod (22) moves along the slide groove (30) and pushes the slider (3) to slide linearly through the slide groove (30).

12. The single-coil electromagnetic electric operating device according to claim 11, characterized in that: The slide groove (30) is in the shape of an elongated strip, and the length direction of the slide groove (30) is perpendicular to the linear moving direction of the slider (3).

13. The single-coil electromagnetic electric operating device according to claim 2, characterized in that: The driving wheel (52) is an incomplete gear, and comprises a toothed disc (521) and a swinging rod (522) connected to the toothed disc (521); one end of the swinging rod (522) away from the toothed disc (521) is connected to the driving rod (51) via a first shaft (523).

14. The single-coil electromagnetic electric operating device according to claim 13, characterized in that: The swing rod (522) is connected to a second reset spring (525), and the second reset spring (525) is used to drive the driving wheel (52) to rotate when the moving iron core (11) is reset.

15. The single-coil electromagnetic electric operating device according to claim 1, characterized in that: The moving iron core (11) is provided with a driving shaft (13), and the driving rod (51) is provided with a driving groove (14) for inserting the driving shaft (13). When the moving iron core (11) moves, the driving shaft (13) pushes the driving groove (14) to drive the driving rod (51) to rotate, and at the same time, the driving shaft (13) slides along the driving groove (14).

16. The single-coil electromagnetic electric operating device according to claim 1, characterized in that: A controller (71) for supplying power to the electromagnetic coil (12) and a wiring terminal (72) connected to the controller (71) are provided. The wiring terminal (72) includes a common terminal (74) and an opening terminal (73) and a closing terminal (75) corresponding to the opening position and the closing position of the slider (3), respectively. When the slider (3) moves to the opening position and the closing position, it drives the handle (6) to open and close the switch. The controller (71) is provided with a contact sheet (76). The two ends of the electromagnetic coil (12) are respectively connected to the contact sheet (76). 6) and the common end (74), the contact piece (76) can switch between connecting to the opening end (73) and connecting to the closing end (75), when the slider (3) moves to the opening position or the closing position, the contact piece (76) is away from the opening end (73) or the closing end (75) corresponding to the opening position or the closing position, and the contact piece (76) will be connected to the other of the opening end (73) or the closing end (75), and the electromagnetic coil (12) can only be powered by the other of the opening end (73) or the closing end (75) again.

17. The single-coil electromagnetic electric operating device according to claim 16, characterized in that: The controller (71) is provided with a lever (77), the lever (77) being provided with a toggle end for driving the contact piece (76) to switch between an opening end (73) and a closing end (75), and a driving end extending outside the controller (71) and cooperating with the slider (3), wherein the slider (3) can simultaneously push the driving end when it moves to an opening position or a closing position, so that the toggle end of the lever (77) drives the contact piece (76) away from the opening end (73) or the closing end (75) corresponding to the opening position or the closing position, and connects with the other of the opening end (73) or the closing end (75).

18. The single-coil electromagnetic electric operating device according to claim 17, characterized in that: The slider (3) comprises two side plates (31) arranged opposite to each other, and a top plate (32) connected between the two side plates (31); the top plate (32) is provided with a slide groove (30); the inner sides of the two side plates (31) are respectively provided with a push plate (300) for pushing the handle (6) to move; the driving end of the lever (77) is inserted between the two side plates (31); when the slider (3) moves, the lever (77) is pushed respectively by the two side plates (31), so that the lever (77) drives the contact piece (76) to switch between the opening end (73) and the closing end (75).

19. The single-coil electromagnetic electric operating device according to claim 1, characterized in that: The slider (3) is connected to a first return spring (36), and the first return spring (36) is used to drive the slider (3) to move along the operating direction of the handle (6), so that the slider (3) maintains contact with the handle (6) or the follower (53).

20. The single-coil electromagnetic electric operating device according to claim 11, characterized in that: The trajectory of the circular motion of the push rod (22) includes two semicircular trajectories, which are relatively arranged on both sides of the operating direction of the handle (6). When the push rod (22) moves along one of the semicircular trajectories, it drives the slider (3) to move toward the opening position. When the push rod (22) rotates along the other semicircular trajectory, it drives the slider (3) to move toward the closing position.

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