Reclosing circuit breaker adopting bidirectional clutch and operation method

Abstract

The invention discloses a reclosing circuit breaker adopting bidirectional clutch and an operation method, a bidirectional clutch assembly on the reclosing circuit breaker is ingenious in design, all parts of the bidirectional clutch assembly are reasonable in layout and are integrated in a fluted disc, high integration of the bidirectional clutch assembly on an electric operation mechanism is achieved, and the reclosing circuit breaker is high in reliability. The manual opening and closing bidirectional automatic clutch function of the circuit breaker is realized in a limited space, and the requirement of an electric power system on manual and electric opening and closing bidirectional control of a circuit is met. According to the bidirectional clutch assembly in the design, through linkage cooperation of the first connecting lever and the second connecting lever with the transmission disc and the clutch disc, stable locking cooperation between the connecting lever on the fluted disc and the transmission disc during electric opening and closing operation is ensured, and meanwhile unlocking cooperation between the clutch disc and the connecting lever during manual opening and closing operation is ensured; and the smoothness and the safety of manual opening and closing operation are also ensured.

Description

Technical Field

[0001] The invention relates to the technical field of reclosing circuit breakers, and in particular to a reclosing circuit breaker adopting bidirectional clutch and an operating method. Background Art

[0002] The electric operating mechanism is a special accessory for reclosing molded case circuit breakers. When the electric operating mechanism is combined with the circuit breaker, the molded case circuit breaker can be opened and closed electrically at a distance to realize the centralized and automatic control of the transmission and distribution network. At present, the electric operating mechanism has two modes: electric operation and manual operation. The electric operation drives the motor to rotate through the controller to realize the closing and opening of the molded case circuit breaker handle, while the manual operation closes the molded case circuit breaker handle by manually rotating the shaft. During the manual operation, the linkage between the transmission mechanism and the motor is required to be interrupted.

[0003] The clutch mechanism on the existing electric operating mechanism can basically only achieve one-way separation. Due to the large opening and closing stroke of the molded case circuit breaker handle, the accessories driven by the rotating shaft rotate at a large angle, resulting in the defects of complex structure, difficult assembly and large volume of the clutch mechanism that can achieve two-way separation; and in order to ensure the safety of manual operation, it is necessary to set corresponding protection components on the electric operating mechanism, so that the electric operating mechanism that can achieve two-way clutch function cannot be miniaturized. In view of this, it is urgent to design a reclosing circuit breaker with high integration and two-way clutch function. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a reclosing circuit breaker using bidirectional clutch and an operating method.

[0005] In a first aspect of the present invention, a reclosing circuit breaker adopting a bidirectional clutch is provided, comprising a circuit breaker body and an electric operating mechanism, wherein the electric operating mechanism comprises a housing and a motor, a driving gear set, a bidirectional clutch assembly, and a handle transmission assembly located in the housing, wherein the motor is connected to the bidirectional clutch assembly via the driving gear set, and the bidirectional clutch assembly is connected to the handle of the circuit breaker body via the handle transmission assembly; the bidirectional clutch assembly comprises a toothed disc, a rotating shaft inserted in the toothed disc, a transmission disc movably connected to the rotating shaft, and a clutch disc fixedly connected to the rotating shaft, wherein the clutch disc and the transmission disc are linked and connected, wherein a first crank arm and a second crank arm are arranged in opposed relation in the toothed disc, and the first crank arm and the second crank arm are arranged in opposite relation with the toothed disc. The toothed disc rotates, and the first crank arm is respectively linked to the transmission disc and the clutch disc, and the second crank arm is respectively linked to the transmission disc and the clutch disc; when the motor drives the toothed disc to rotate, the first crank arm or the second crank arm forms a locking fit with the transmission disc to drive the transmission disc to rotate, drives the rotating shaft to rotate, and drives the handle transmission assembly to perform an electric closing action or an electric opening action; when the external handle drives the rotating shaft to rotate, the clutch disc and the transmission disc both rotate with the rotating shaft, driving the first crank arm and the second crank arm to be unable to form a locking fit with the transmission disc, so that the toothed disc does not rotate with the rotating shaft, and drives the handle transmission assembly to perform a manual closing action or a manual opening action.

[0006] In a second aspect of the present invention, a method for operating a reclosing circuit breaker using a bidirectional clutch is provided, which is applicable to the above-mentioned reclosing circuit breaker using a bidirectional clutch, and includes electric closing, electric opening, manual closing and manual opening, wherein: The electric closing comprises: obtaining an electric closing signal, controlling the motor to run and driving the gear plate to rotate forward through the driving gear set, the gear plate rotating forward drives the first crank arm and the second crank arm to rotate forward, the first locking surface of the first crank arm acts on the transmission step of the transmission plate, the second release surface of the second crank arm acts on the transmission step of the transmission plate, so that the first fin-shaped portion is pressed against the notch of the transmission plate, and the second fin-shaped portion is disengaged from the notch of the transmission plate, the first crank arm forms a locking fit with the transmission plate, the second crank arm cannot form a locking fit with the transmission plate, the transmission plate rotates forward under the drive of the first crank arm, the transmission plate drives the clutch plate to rotate forward, the clutch plate drives the rotating shaft to rotate forward, and the rotating shaft closes the handle of the circuit breaker body through the handle transmission assembly; The electric opening includes: obtaining an electric opening signal, controlling the motor to run and driving the gear plate to reverse through the driving gear set, the gear plate reverses and drives the first crank arm and the second crank arm to reverse, the second locking surface of the second crank arm acts on the transmission step of the transmission plate, the first release surface of the first crank arm acts on the transmission step of the transmission plate, so that the second fin-shaped portion is pressed against the notch of the transmission plate, the first fin-shaped portion is disengaged from the notch of the transmission plate, the second crank arm forms a locking fit with the transmission plate, the first crank arm cannot form a locking fit with the transmission plate, the transmission plate is reversed under the drive of the second crank arm, the transmission plate drives the clutch plate to reverse, the clutch plate drives the rotating shaft to reverse, and the rotating shaft opens the handle of the circuit breaker body through the handle transmission assembly; The manual closing includes: unlocking the lock body on the cover and pushing the shift plate to the open state, using the external handle to rotate the shaft forward, the protruding outer edge of the clutch disk abuts against the second separation pin, so that the movable end of the second crank arm rotates in the direction away from the shaft, the second fin-shaped portion disengages from the notch of the transmission disk, and the clutch disk drives the transmission disk to rotate forward, the transmission step of the transmission disk acts on the first release surface of the first crank arm, so that the first fin-shaped portion disengages from the notch of the transmission disk, the first crank arm and the second crank arm cannot form a locking fit with the transmission disk, the gear plate will not rotate forward with the shaft, and the shaft that rotates forward closes the handle of the circuit breaker body through the handle transmission assembly; The manual opening includes: unlocking the lock body on the cover and pushing the shift plate to the open state, using the external handle to reverse the rotating shaft, the raised outer edge of the clutch disk abuts against the first separation pin, so that the movable end of the first crank arm rotates in the direction away from the rotating shaft, the first fin-shaped portion disengages from the recess of the transmission disk, and the clutch disk drives the transmission disk to reverse, the transmission step of the transmission disk acts on the second release surface of the second crank arm, so that the second fin-shaped portion disengages from the recess of the transmission disk, and the first crank arm and the second crank arm cannot form a locking fit with the transmission disk, the gear disk will not reverse with the rotating shaft, and the reversed rotating shaft opens the handle of the circuit breaker body through the handle transmission assembly.

[0007] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The working principle of the bidirectional clutch reclosing circuit breaker adopted in this technical solution is as follows: (1) When the reclosing circuit breaker is electrically closed or electrically opened, the motor drives the gear plate to rotate forward or reversely through the driving gear set, and the first crank arm and the second crank arm also rotate accordingly. Due to the opposed arrangement structure of the first crank arm and the second crank arm, during the electric closing or opening process, the fin-shaped portion of one crank arm is stuck in the notch of the transmission disk, driving the transmission disk to rotate accordingly, and the clutch disk rotates with the transmission disk, thereby driving the rotating shaft to rotate forward or reversely, and the rotating shaft drives the handle of the molded case circuit breaker to close or open the circuit through the handle transmission assembly; (2) When the handle manually closes or opens the rotating shaft, the clutch disk and the transmission disk rotate accordingly. Due to the opposed arrangement of the first crank arm and the second crank arm, during the manual closing or manual opening process, one of the crank arms cannot abut against the recess of the transmission disk due to the structure of the fin-shaped portion, and the separation pin on the other crank arm will be pushed outward by the raised outer edge, so that the other group of fin-shaped portions cannot be stuck in the recess of the transmission disk. Therefore, during the manual closing and manual opening process, the first crank arm and the second crank arm cannot form a locking fit with the transmission disk, so that the gear disk will not rotate with the rotating shaft, thereby realizing the separation between the manual operation and the motor linkage structure.

[0008] The bidirectional clutch assembly on the reclosing circuit breaker of the present invention is cleverly designed, and the various components of the bidirectional clutch assembly are reasonably arranged and integrated inside the gear plate, thereby realizing a high degree of integration of the bidirectional clutch assembly on the electric operating mechanism, and realizing the functions of bidirectional automatic clutch of manual opening and closing of the circuit breaker in a limited space, thus meeting the needs of the power system for bidirectional control of manual and electric opening and closing of the line.

[0009] The bidirectional clutch assembly in the design of the present invention ensures the stable locking cooperation between the crank arm on the gear plate and the transmission plate during electric opening and closing operations through the linkage cooperation between the first crank arm and the second crank arm and the transmission plate and the clutch plate. At the same time, the unlocking cooperation between the clutch plate and the crank arm during manual opening and closing operations also ensures the smoothness and safety of manual opening and closing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an exploded view of a reclosing circuit breaker with bidirectional clutch according to an embodiment of the present invention.

[0011] Figure 2 It is a three-dimensional diagram of the electric operating mechanism according to an embodiment of the present invention.

[0012] Figure 3 It is a three-dimensional diagram of the internal structure of the electric operating mechanism according to an embodiment of the present invention.

[0013] Figure 4 It is a partial schematic diagram of the electric operating mechanism according to an embodiment of the present invention.

[0014] Figure 5It is a stereoscopic diagram of the motor, driving gear assembly and bidirectional clutch assembly according to an embodiment of the present invention.

[0015] Figure 6 It is a stereoscopic diagram of the motor and handle transmission assembly according to an embodiment of the present invention.

[0016] Figure 7 It is an exploded view of a bidirectional clutch assembly according to an embodiment of the present invention.

[0017] Figure 8 This is a three-dimensional diagram of the bidirectional clutch assembly without the cover plate according to an embodiment of the present invention.

[0018] Fig. 9 This is a three-dimensional diagram of the bidirectional clutch assembly after removing the cover plate and the clutch disc according to an embodiment of the present invention.

[0019] Fig.10 It is a three-dimensional diagram of the internal structure of the bidirectional clutch assembly according to an embodiment of the present invention.

[0020] Fig.11 It is a top view of the crank arm and the transmission plate according to an embodiment of the present invention.

[0021] Fig.12 It is a three-dimensional diagram of a transmission plate according to an embodiment of the present invention.

[0022] Fig.13 This is a three-dimensional diagram of a clutch disc according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] Combined with Figure 1 To Attachment Fig.13The technical solution of the present invention is a reclosing circuit breaker with bidirectional clutch, comprising a circuit breaker body 10 and an electric operating mechanism 20, wherein the electric operating mechanism 20 comprises a housing 30 and a motor 40, a driving gear set 50, a bidirectional clutch assembly 60, and a handle transmission assembly 70 located in the housing 30, wherein the motor 40 is connected to the bidirectional clutch assembly 60 through the driving gear set 50, and the bidirectional clutch assembly 60 is connected to the handle 11 of the circuit breaker body 10 through the handle transmission assembly 70; the bidirectional clutch assembly 60 comprises a toothed disc 61, a rotating shaft 62 inserted in the toothed disc 61, a transmission disc 63 movably connected to the rotating shaft 62, and a clutch disc 64 fixedly connected to the rotating shaft 62, wherein the clutch disc 64 and the transmission disc 63 are linked and connected, wherein the toothed disc 61 is provided with a first crank arm 65 and a second crank arm 66 opposed to each other, wherein the first crank arm 65 and the second crank arm 66 rotates with the toothed disc 61, the first crank arm 65 is respectively linked to the transmission disc 63 and the clutch disc 64, and the second crank arm 66 is respectively linked to the transmission disc 63 and the clutch disc 64; when the motor 40 drives the toothed disc 61 to rotate, the first crank arm 65 or the second crank arm 66 forms a locking fit with the transmission disc 63 to drive the transmission disc 63 to rotate, drive the rotating shaft 62 to rotate, and drive the handle transmission assembly 70 to perform an electric closing action or an electric opening action; when the external handle 80 drives the rotating shaft 62 to rotate, the clutch disc 64 and the transmission disc 63 both rotate with the rotating shaft 62, driving the first crank arm 65 and the second crank arm 66 to be unable to form a locking fit with the transmission disc 63, so that the toothed disc 61 does not rotate with the rotating shaft 62, and drives the handle transmission assembly 70 to perform a manual closing action or a manual opening action.

[0026] In this embodiment, as shown in the attached Figure 7 To Attachment Fig.13 As shown, the outer periphery of the toothed disc 61 is provided with external teeth 611 which are linked with the driving gear set 50, the toothed disc 61 is connected with a cover plate 67, an installation cavity 612 is provided between the toothed disc 61 and the cover plate 67, the first crank arm 65, the second crank arm 66, the transmission disc 63 and the clutch disc 64 are all encapsulated in the installation cavity 612, the transmission disc 63 is provided with a transmission pin 631, the clutch disc 64 is provided with a travel groove 641, the transmission pin 631 is connected in the travel groove 641, the first crank arm 65 and the second crank arm 66 are located on both sides of the transmission disc 63, the first crank arm 65 is provided with a first elastic member 651, the first elastic member 651 drives the first crank arm 65 to abut against the transmission disc 63, the second crank arm 66 is provided with a second elastic member 661, the second elastic member 661 drives the second crank arm 66 to abut against the transmission disc 63.

[0027] In this embodiment, as shown in the attached Figure 8 To Attachment Fig.11 As shown, one end of the first crank arm 65 is connected to the toothed disk 61 through a first hinge shaft 652, the other end of the first crank arm 65 is provided with a first separation pin 653, the first crank arm 65 is provided with a first fin-shaped portion 654 on the side close to the transmission disk 63, one end of the second crank arm 66 is connected to the toothed disk 61 through a second hinge shaft 662, the other end of the second crank arm 66 is provided with a second separation pin 663, the second crank arm 66 is provided with a second fin-shaped portion 664 on the side close to the transmission disk 63, the outer periphery of the transmission disk 63 is provided with a notch 632, the first fin-shaped portion 654 and the second fin-shaped portion 664 are respectively linked to the notch 632.

[0028] In this embodiment, the first separation pin 653 and the second separation pin 663 are used for the clutch disk 64 to trigger the clutch action of the first crank arm 65 and the second crank arm 66, and the clutch action is that the first crank arm 65 and the second crank arm 66 rotate in the direction away from the rotating shaft 62.

[0029] In this embodiment, as shown in the attached Fig.10 and attached Fig.11 As shown, the first fin-shaped portion 654 includes a first locking surface 655 and a first release surface 656, the second fin-shaped portion 664 includes a second locking surface 665 and a second release surface 666, and transmission steps 633 are provided on both sides of the recess 632; when the transmission step 633 acts on the first locking surface 655 / the second locking surface 665, the first fin-shaped portion 654 / the second fin-shaped portion 664 forms a locking fit with the transmission disk 63, and when the transmission step 633 acts on the first release surface 656 / the second release surface 666, the first fin-shaped portion 654 / the second fin-shaped portion 664 disengages from the recess 632.

[0030] In this embodiment, when the switch is opened and closed electrically, the gear plate 61 drives the first crank arm 65 and the second crank arm 66 to rotate, so that the first locking surface 655, the first release surface 656, the second locking surface 665 and the second release surface 666 will produce corresponding linkage actions with the transmission step 633; ​​when the switch is opened and closed manually, the clutch plate 64 rotates with the rotating shaft 62 to drive the transmission plate 63 to rotate, and the transmission step 633 of the transmission plate 63 will act on the first locking surface 655, the first release surface 656, the second locking surface 665 and the second release surface 666 to produce corresponding linkage actions.

[0031] In this embodiment, the chamfer of the transmission step 633 is in an arc shape, and the first locking surface 655 and the second locking surface 665 are also concave arc surfaces.

[0032] In this embodiment, as shown in the attached Fig.13 As shown, the outer periphery of the clutch disk 64 is provided with a recessed outer edge 642 and a raised outer edge 643, the distance from the recessed outer edge 642 to the axis of the rotating shaft 62 is smaller than the distance from the raised outer edge 643 to the axis of the rotating shaft 62, a conversion step 644 is provided between the recessed outer edge 642 and the raised outer edge 643, the conversion step 644 is also provided with a circular chamfer, the first separation pin 653 and the second separation pin 663 are in the same action plane with the clutch disk 64; when the first separation pin 653 / the second separation pin 663 abuts against the raised outer edge 643, the first fin-shaped portion 654 / the second fin-shaped portion 664 disengages from the recess 632.

[0033] In this embodiment, as shown in the attached Figure 8 To Attachment Fig.11 As shown, the travel groove 641 on the clutch disk 64 and the transmission pin 631 on the transmission disk 63 realize the linkage cooperation between the clutch disk 64 and the transmission disk 63; the size of the travel groove 641 is larger than the size of the transmission pin 631, so that when the clutch disk 64 is in motion, there will be a stage in which the clutch disk 64 and the transmission disk 63 rotate asynchronously, which provides an action stroke for the raised outer edge 643 of the clutch disk 64 to trigger the first separation pin 653 / the second separation pin 663, so that the first locking surface 655 / the second locking surface 665 will not form a locking cooperation with the transmission step 633 of the recess 632 in advance, thereby realizing the release of the locking cooperation relationship between the first crank arm 65 and the second crank arm 66 and the transmission disk 63 during manual opening and closing operations.

[0034] In this embodiment, as shown in the attached Figure 8 and attached Fig. 9 As shown, the first elastic member 651 and the second elastic member 661 are both torsion springs; the first elastic member 651 is sleeved on the first hinge shaft 652, one end of the first elastic member 651 abuts against the inner wall of the toothed disc 61, and the other end of the first elastic member 651 abuts against the first crank arm 65; the second elastic member 661 is sleeved on the second hinge shaft 662, one end of the second elastic member 661 abuts against the inner wall of the toothed disc 61, and the other end of the second elastic member 661 abuts against the second crank arm 66.

[0035] In this embodiment, as shown in the attached Figure 3 To Attachment Figure 6As shown, the electric operating mechanism 20 also includes a lock body 21, a shift plate 22, a first micro switch 23, a second micro switch 24 and a Hall sensor 25 connected to the cover shell 30, the lock body 21 is provided with a lock plate 211 and a first trigger part 212, the shift plate 22 is provided with a shift block 221, a limit part 222 and a second trigger part 223, and the probe of the Hall sensor 25 is directly facing the edge of the outer teeth 611 of the toothed disk 61; when the lock body 21 is in a locked state, the lock plate 211 is located on the path where the limit part 222 moves with the shift plate 22, and the first trigger part 212 triggers the first micro switch 23; when the lock body 21 is in an unlocked state and the shift plate 22 is in an open state, the second trigger part 223 triggers the second micro switch 24, and the shift plate 22 releases the obstruction of the rotating shaft 62.

[0036] In this embodiment, the shift block 221 is used to manually move the shift plate 22 . When the shift plate 22 is opened, the operating portion of the rotating shaft 62 is exposed, and the switch is manually closed or opened through the external handle 80 .

[0037] In this embodiment, the Hall sensor 25 is used to collect the number of the outer teeth 611 passing through the Hall sensor 25 during the rotation of the toothed disc 61 .

[0038] In this embodiment, the first micro switch 23 is used to detect the locked state and the unlocked state of the lock body 21 , and the second micro switch 24 is used to detect the opened state and the closed state of the shift plate 22 .

[0039] In this embodiment, as shown in the attached Figure 6 As shown, the motor 40 is provided with an encoder, which is not shown in the accompanying drawings. The handle transmission assembly 70 includes a slide bar 71, a slider 72 movably connected to the slide bar 71, a cam 73 connected to the rotating shaft 62, and a wheel 74 connected to the cam 73. The slide bar 72 is provided with a slide groove 721, and the wheel 74 is located in the slide groove 721. The outer side of the cam 73 is provided with a third micro switch 26; when the circuit breaker body 10 is in the closing / opening state, the cam 73 triggers the third micro switch 26, that is, when the circuit breaker body 10 is in the closing state and the opening state, the third micro switch 26 is respectively in the opening state or the disconnecting state.

[0040] The technical solution of the present invention adopts a bidirectional clutch reclosing circuit breaker with a working principle as follows: (1) When the reclosing circuit breaker is electrically closed or electrically opened, the motor 40 drives the toothed disc 61 to rotate forward or reversely through the driving gear set 50, and the first crank arm 65 and the second crank arm 66 also rotate accordingly. Due to the opposed arrangement structure of the first crank arm 65 and the second crank arm 66, during the electric closing or opening process, a fin-shaped portion of the crank arm is stuck in the recess 632 of the transmission disc 63, driving the transmission disc 63 to rotate accordingly, and the clutch disc 64 rotates with the transmission disc 63, thereby driving the rotating shaft 2 to rotate forward or reversely, and the rotating shaft 62 drives the handle 11 of the molded case circuit breaker to close or open the circuit through the handle transmission assembly 70; (2) through the external When the handle 80 manually closes or opens the rotating shaft 62, the clutch disk 64 and the transmission disk 63 rotate accordingly. Due to the opposed arrangement of the first crank arm 65 and the second crank arm 66, during the manual closing or manual opening process, one of the crank arms cannot abut against the recess 632 of the transmission disk 63 due to the structure of the fin-shaped portion, and the separation pin on the other crank arm will be pushed outward by the raised outer edge 643, so that the other group of fin-shaped portions cannot be stuck in the recess 632 of the transmission disk 63. Therefore, during the manual closing and manual opening process, the first crank arm 65 and the second crank arm 66 cannot form a locking fit with the transmission disk 63 at all times, so that the gear disk 61 will not rotate with the rotating shaft 62, thereby realizing the separation between the manual operation and the motor linkage structure.

[0041] The bidirectional clutch assembly 60 on the reclosing circuit breaker of the present invention is cleverly designed, and the various components of the bidirectional clutch assembly 60 are reasonably arranged and integrated inside the gear plate 61, realizing the high integration of the bidirectional clutch assembly 60 on the electric operating mechanism, realizing the bidirectional automatic clutch function of the manual opening and closing of the circuit breaker in a limited space, and meeting the power system's demand for bidirectional control of manual and electric opening and closing of the line. The bidirectional clutch assembly ensures the stable locking cooperation between the crank arm on the gear plate 61 and the transmission plate 63 during the electric opening and closing operation through the linkage cooperation of the first crank arm 65 and the second crank arm 66 with the transmission plate 63 and the clutch plate 64, and at the same time, the unlocking cooperation between the clutch plate 64 and the crank arm during the manual opening and closing operation also ensures the smoothness and safety of the manual opening and closing operation.

[0042] Example 2

[0043] Combined with Figure 1 To Attachment Fig.13 The technical solution of the present invention is a method for operating a reclosing circuit breaker using a bidirectional clutch, which is applicable to the reclosing circuit breaker using a bidirectional clutch described in Example 1, including electric closing, electric opening, manual closing and manual opening, wherein the attached Figure 8 and attached Fig. 9 The X direction in the figure is the positive rotation direction of the toothed disc 61 / rotating shaft 62. Figure 8 and attached Fig. 9 The Y direction in the figure is the reverse direction of the toothed disc 61 / rotating shaft 62. The electric closing includes: obtaining an electric closing signal, controlling the motor 40 to run and driving the gear plate 61 to rotate forward through the driving gear set 50, the gear plate 61 rotates forward to drive the first crank arm 65 and the second crank arm 66 to rotate forward, the first locking surface 655 of the first crank arm 65 acts on the transmission step 633 of the transmission plate 63, and the second release surface 666 of the second crank arm 66 acts on the transmission step 633 of the transmission plate 63, so that the first fin 654 is pressed against the notch 632 of the transmission plate 63, and the second fin 664 is disengaged from the notch 632 of the transmission plate 63, the first crank arm 65 forms a locking fit with the transmission plate 63, and the second crank arm 66 cannot form a locking fit with the transmission plate 63, the transmission plate 63 rotates forward under the drive of the first crank arm 65, the transmission plate 63 drives the clutch plate 64 to rotate forward, the clutch plate 64 drives the rotating shaft 62 to rotate forward, and the rotating shaft 62 closes the handle 11 of the circuit breaker body 10 through the handle transmission assembly 70; The electric opening includes: obtaining an electric opening signal, controlling the motor 40 to run and driving the gear plate 61 to reverse through the driving gear set 50, the gear plate 61 reverses and drives the first crank arm 65 and the second crank arm 66 to reverse, the second locking surface 665 of the second crank arm 66 acts on the transmission step 633 of the transmission plate 63, the first release surface 656 of the first crank arm 65 acts on the transmission step 633 of the transmission plate 63, so that the second fin 664 is pressed against the notch 632 of the transmission plate 63, and the first fin 654 is disengaged from the notch 632 of the transmission plate 63, the second crank arm 66 forms a locking fit with the transmission plate 63, the first crank arm 65 cannot form a locking fit with the transmission plate 63, the transmission plate 63 is reversed under the drive of the second crank arm 66, the transmission plate 63 drives the clutch plate 64 to reverse, the clutch plate 64 drives the rotating shaft 62 to reverse, and the rotating shaft 62 opens the handle 11 of the circuit breaker body 10 through the handle transmission assembly 70; The manual closing includes: unlocking the lock body 21 on the cover 30 and pushing the shift plate 22 to the open state, using the external handle 80 to rotate the shaft 62 forward, the protruding outer edge 643 of the clutch plate 64 abuts against the second separation pin 663, so that the movable end of the second crank arm 66 rotates in the direction away from the shaft 62, the second fin 664 disengages from the notch 632 of the transmission plate 63, and the clutch plate 64 drives the transmission plate 63 to rotate forward, the transmission step 633 of the transmission plate 63 acts on the first release surface 656 of the first crank arm 65, so that the first fin 654 disengages from the notch 632 of the transmission plate 63, the first crank arm 65 and the second crank arm 66 cannot form a locking fit with the transmission plate 63, the toothed plate 61 will not rotate forward with the shaft 62, and the shaft 62 that rotates forward closes the handle 11 of the circuit breaker body 10 through the handle transmission assembly 70; The manual opening includes: unlocking the lock body 21 on the cover shell 30 and pushing the shift plate 22 to the open state, using the external handle 80 to reverse the rotating shaft 62, and the raised outer edge 643 of the clutch disk 64 abuts against the first separation pin 653, so that the movable end of the first crank arm 65 rotates in the direction away from the rotating shaft 62, and the first fin-shaped portion 654 disengages from the recess 632 of the transmission disk 63, and the clutch disk 64 drives the transmission disk 63 to reverse, and the transmission step 633 of the transmission disk 63 acts on the second release surface 666 of the second crank arm 66, so that the second fin-shaped portion 664 disengages from the recess 632 of the transmission disk 63, and the first crank arm 65 and the second crank arm 66 cannot form a locking fit with the transmission disk 63, and the toothed disk 61 will not reverse with the rotating shaft 62, and the reversed rotating shaft 62 opens the handle 11 of the circuit breaker body through the handle transmission assembly 70.

[0044] In this embodiment, when the first micro switch 23 is in a non-triggering state and the second micro switch 24 is in a triggering state (i.e., the lock body 21 is in an unlocked state and the shift plate 22 is open), the driving circuit of the motor 40 is interrupted, and the gear rotation information fed back by the Hall sensor 25 is obtained. According to the gear rotation information and the preset gear rotation threshold, it is determined whether the two-way clutch assembly 60 is normal; When the first microswitch 23 is in the triggered state and the second microswitch 24 is in the non-triggered state (i.e., the lock body 21 is in the locked state and the shift plate 22 is closed), the motor rotation information fed back by the encoder of the motor 40 is obtained, and the sprocket rotation information fed back by the Hall sensor 25 is obtained at the same time; based on the motor rotation information and the sprocket rotation information, it is determined whether the driving gear set 50 is normal; based on the sprocket rotation information and the trigger state of the third microswitch 26, it is determined whether the handle transmission assembly 70 is normal.

[0045] In this embodiment, the lock body 21 is in the unlocked state and the shift plate 22 is open, which means that manual closing or opening is required, thereby interrupting the drive circuit of the motor 40 to avoid malfunction of the circuit breaker body 10. In the case of manual closing or opening, the toothed disc 61 theoretically will not rotate. If the toothed disc rotation information feedback shows that the rotation of the toothed disc 61 exceeds the preset tooth rotation threshold, the bidirectional clutch assembly 60 is determined to be abnormal, otherwise, the bidirectional clutch assembly 60 is determined to be normal.

[0046] In this embodiment, the lock body 21 is in a locked state and the shift plate 22 is closed, which means that the current circuit breaker body 10 can only be electrically opened and closed. Based on the determination of the motor 40 and the drive gear set 50, the motor rotation information and the gear rotation information can be used to determine whether the drive gear set 50, the motor 40 and the gear 61 are working normally; and under normal circumstances, when the gear 61 rotates a certain angle (several external teeth), the cam 73 will rotate to the target position accordingly. Therefore, whether the handle transmission assembly 70 is normal can be determined based on the gear rotation information and the triggering state of the third micro switch 26.

[0047] In this embodiment, by setting up multiple sensors, not only can the safety of manual operation be achieved, but also the specific fault information of the circuit breaker can be determined according to the information fed back by the sensors, thereby avoiding the circuit breaker being unable to normally perform the corresponding opening and closing actions due to the failure of the internal components of the circuit breaker.

[0048] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reclosing circuit breaker with bidirectional clutch, characterized in that: The invention comprises a circuit breaker body and an electric operating mechanism, wherein the electric operating mechanism comprises a housing and a motor, a driving gear set, a two-way clutch assembly, and a handle transmission assembly located in the housing, wherein the motor is connected to the two-way clutch assembly through the driving gear set, and the two-way clutch assembly is connected to the handle of the circuit breaker body through the handle transmission assembly; the two-way clutch assembly comprises a toothed disc, a rotating shaft inserted on the toothed disc, a transmission disc movably connected to the rotating shaft, and a clutch disc fixedly connected to the rotating shaft, wherein the clutch disc and the transmission disc are linked and connected, wherein a first crank arm and a second crank arm are arranged in opposed relation, wherein the first crank arm and the second crank arm rotate with the toothed disc, and the first crank arm is divided into The first crank arm and the second crank arm are respectively connected in a linkage manner with the transmission disk and the clutch disk, and the second crank arm is respectively connected in a linkage manner with the transmission disk and the clutch disk; when the motor drives the toothed disk to rotate, the first crank arm or the second crank arm forms a locking fit with the transmission disk to drive the transmission disk to rotate, drives the rotating shaft to rotate, and drives the handle transmission assembly to perform an electric closing action or an electric opening action; when the external handle drives the rotating shaft to rotate, the clutch disk and the transmission disk both rotate with the rotating shaft, driving the first crank arm and the second crank arm to be unable to form a locking fit with the transmission disk, so that the toothed disk does not rotate with the rotating shaft, and drives the handle transmission assembly to perform a manual closing action or a manual opening action.

2. A reclosing circuit breaker with bidirectional clutch according to claim 1, characterized in that: The outer periphery of the toothed disc is provided with external teeth linked to the driving gear set, and a cover plate is connected to the toothed disc, and an installation cavity is provided between the toothed disc and the cover plate, and the first crank arm, the second crank arm, the transmission disc and the clutch disc are all encapsulated in the installation cavity, and a transmission pin is provided on the transmission disc, and a travel groove is provided on the clutch disc, and the transmission pin is connected in the travel groove, and the first crank arm and the second crank arm are located on both sides of the transmission disc, and a first elastic member is provided on the first crank arm, and the first elastic member drives the first crank arm to abut against the transmission disc, and a second elastic member is provided on the second crank arm, and the second elastic member drives the second crank arm to abut against the transmission disc.

3. A reclosing circuit breaker with bidirectional clutch according to claim 2, characterized in that: One end of the first crank arm is connected to the toothed disk through a first hinge shaft, and the other end of the first crank arm is provided with a first separation pin. A first fin-shaped portion is provided on a side of the first crank arm close to the transmission disk, and one end of the second crank arm is connected to the toothed disk through a second hinge shaft, and the other end of the second crank arm is provided with a second separation pin. A second fin-shaped portion is provided on a side of the second crank arm close to the transmission disk, and a notch is provided on the outer periphery of the transmission disk, and the first fin-shaped portion and the second fin-shaped portion are respectively linked and connected with the notch.

4. A reclosing circuit breaker with bidirectional clutch according to claim 3, characterized in that: The first fin-shaped portion includes a first locking surface and a first release surface, the second fin-shaped portion includes a second locking surface and a second release surface, and transmission steps are provided on both sides of the recess; when the transmission step acts on the first locking surface / second locking surface, the first fin-shaped portion / second fin-shaped portion forms a locking fit with the transmission disk, and when the transmission step acts on the first release surface / second release surface, the first fin-shaped portion / second fin-shaped portion disengages from the recess.

5. A reclosing circuit breaker with bidirectional clutch according to claim 3, characterized in that: The outer periphery of the clutch disk is provided with a recessed outer edge and a raised outer edge, the distance from the recessed outer edge to the axis of the rotating shaft is smaller than the distance from the raised outer edge to the axis of the rotating shaft, a conversion step is provided between the recessed outer edge and the raised outer edge, the first separation pin and the second separation pin are in the same action plane with the clutch disk; when the first separation pin / the second separation pin abuts against the raised outer edge, the first fin-shaped portion / the second fin-shaped portion disengages from the recess.

6. A reclosing circuit breaker with bidirectional clutch according to claim 3, characterized in that: The first elastic member and the second elastic member are both torsion springs; the first elastic member is sleeved on the first hinge shaft, one end of the first elastic member abuts against the inner wall of the toothed disc, and the other end of the first elastic member abuts against the first crank arm; the second elastic member is sleeved on the second hinge shaft, one end of the second elastic member abuts against the inner wall of the toothed disc, and the other end of the second elastic member abuts against the second crank arm.

7. A reclosing circuit breaker with bidirectional clutch according to any one of claims 1 to 6, characterized in that: The electric operating mechanism also includes a lock body, a shift plate, a first micro switch, a second micro switch and a Hall sensor connected to the cover shell, the lock body is provided with a lock plate and a first trigger part, the shift plate is provided with a shift block, a limit part and a second trigger part, and the probe of the Hall sensor is facing the outer tooth edge of the toothed disk; when the lock body is in a locked state, the lock plate is located on the path where the limit part moves with the shift plate, and the first trigger part triggers the first micro switch; when the lock body is in an unlocked state and the shift plate is in an open state, the second trigger part triggers the second micro switch, and the shift plate releases the blocking of the rotating shaft.

8. A reclosing circuit breaker with bidirectional clutch according to any one of claims 1 to 6, characterized in that: The motor is provided with an encoder, the handle transmission assembly includes a slide rod, a slider movably connected to the slide rod, a cam connected to the rotating shaft and a wheel connected to the cam, the slide rod is provided with a slide groove, the wheel is located in the slide groove, and a third micro switch is provided on the outer side of the cam; when the circuit breaker body is in a closing / opening state, the cam triggers the third micro switch.

9. A method for operating a reclosing circuit breaker using bidirectional clutch, characterized in that: The reclosing circuit breaker adopting bidirectional clutch according to any one of claims 1 to 8 comprises electric closing, electric opening, manual closing and manual opening, wherein: The electric closing comprises: obtaining an electric closing signal, controlling the motor to run and driving the gear plate to rotate forward through the driving gear set, the gear plate rotating forward drives the first crank arm and the second crank arm to rotate forward, the first locking surface of the first crank arm acts on the transmission step of the transmission plate, the second release surface of the second crank arm acts on the transmission step of the transmission plate, so that the first fin-shaped portion is pressed against the notch of the transmission plate, and the second fin-shaped portion is disengaged from the notch of the transmission plate, the first crank arm forms a locking fit with the transmission plate, the second crank arm cannot form a locking fit with the transmission plate, the transmission plate rotates forward under the drive of the first crank arm, the transmission plate drives the clutch plate to rotate forward, the clutch plate drives the rotating shaft to rotate forward, and the rotating shaft closes the handle of the circuit breaker body through the handle transmission assembly; The electric opening includes: obtaining an electric opening signal, controlling the motor to run and driving the gear plate to reverse through the driving gear set, the gear plate reverses and drives the first crank arm and the second crank arm to reverse, the second locking surface of the second crank arm acts on the transmission step of the transmission plate, the first release surface of the first crank arm acts on the transmission step of the transmission plate, so that the second fin-shaped portion is pressed against the notch of the transmission plate, the first fin-shaped portion is disengaged from the notch of the transmission plate, the second crank arm forms a locking fit with the transmission plate, the first crank arm cannot form a locking fit with the transmission plate, the transmission plate is reversed under the drive of the second crank arm, the transmission plate drives the clutch plate to reverse, the clutch plate drives the rotating shaft to reverse, and the rotating shaft opens the handle of the circuit breaker body through the handle transmission assembly; The manual closing includes: unlocking the lock body on the cover and pushing the shift plate to the open state, using the external handle to rotate the shaft forward, the protruding outer edge of the clutch disk abuts against the second separation pin, so that the movable end of the second crank arm rotates in the direction away from the shaft, the second fin-shaped portion disengages from the notch of the transmission disk, and the clutch disk drives the transmission disk to rotate forward, the transmission step of the transmission disk acts on the first release surface of the first crank arm, so that the first fin-shaped portion disengages from the notch of the transmission disk, the first crank arm and the second crank arm cannot form a locking fit with the transmission disk, the gear plate will not rotate forward with the shaft, and the shaft that rotates forward closes the handle of the circuit breaker body through the handle transmission assembly; The manual opening includes: unlocking the lock body on the cover and pushing the shift plate to the open state, using the external handle to reverse the rotating shaft, the raised outer edge of the clutch disk abuts against the first separation pin, so that the movable end of the first crank arm rotates in the direction away from the rotating shaft, the first fin-shaped portion disengages from the recess of the transmission disk, and the clutch disk drives the transmission disk to reverse, the transmission step of the transmission disk acts on the second release surface of the second crank arm, so that the second fin-shaped portion disengages from the recess of the transmission disk, and the first crank arm and the second crank arm cannot form a locking fit with the transmission disk, the gear disk will not reverse with the rotating shaft, and the reversed rotating shaft opens the handle of the circuit breaker body through the handle transmission assembly.

10. A method for operating a reclosing circuit breaker using bidirectional clutch according to claim 9, characterized in that: When the first micro switch is in a non-triggering state and the second micro switch is in a triggering state, the driving circuit of the motor is interrupted, and the gear rotation information fed back by the Hall sensor is obtained, and whether the bidirectional clutch component is normal is determined according to the gear rotation information and the preset gear rotation threshold; When the first micro switch is in a triggered state and the second micro switch is in a non-triggered state, the motor rotation information fed back by the motor encoder is obtained, and the gear rotation information fed back by the Hall sensor is obtained at the same time; Whether the driving gear set is normal is determined based on the motor rotation information and the gear plate rotation information; whether the handle transmission assembly is normal is determined based on the gear plate rotation information and the triggering state of the third micro switch.

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