Electric operating device for circuit breaker

Abstract

An electric operating device for a circuit breaker includes a housing and a transmission mechanism, wherein the housing is provided with a first slide groove opposite to the handle of the circuit breaker, a sliding rod is installed in the housing, a closing drive and an opening drive are installed on the sliding rod, the closing drive and the opening drive pass through the first slide groove and are driven by the transmission mechanism to make linear motion in the first slide groove to operate the handle of the circuit breaker to close and open; the closing drive includes a first energy storage component, the transmission mechanism includes a transmission connecting rod driving the closing drive, the closing drive is provided with a first linkage groove matched with the rotation of the transmission connecting rod, when closing, after the transmission connecting rod passes the dead point from the avoidance section of the first linkage groove to the driving section, the first energy storage component provides the closing drive for the closing drive. The electric operating device for the circuit breaker of the present invention is provided with a first energy storage component, and after the transmission connecting rod passes the dead point, the first energy storage component provides the closing drive for the closing drive to ensure that the circuit breaker can be closed quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of miniature circuit breakers, and in particular to an electric operating device for a circuit breaker. Background Art

[0002] Miniature circuit breakers are widely used in low-voltage power distribution and control cabinets. However, as more and more occasions require both automatic control and remote control functions, existing miniature circuit breakers are basically equipped with electric operating devices on the side of the circuit breaker. However, this electric operating device installed on the side has the following disadvantages: First, it is easy to tilt when operating the handle of a multi-pole circuit breaker, causing the circuit breaker contacts to be out of sync, thereby causing circuit breaker failure; second, the electric operating mechanism installed on the side occupies lateral space, so it cannot be applied to working cabinets with limited lateral space; third, if the closing speed is too slow, especially when the circuit breaker is closed on a short-circuit fault, the circuit breaker cannot overcome the contact closing electric force, causing the contacts to vibrate or stagnate, which is likely to cause contact burning and arc extinguishing chamber explosion. Summary of the invention

[0003] The object of the present invention is to overcome the defects of the prior art and provide an electric operating device for a circuit breaker with a simple structure and high reliability.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A circuit breaker electric operating device comprises a housing and a transmission mechanism, wherein a side wall of the housing is provided with a first sliding groove as an operating surface which is connected to the interior of the housing and is opposite to a handle of the circuit breaker, a sliding rod is installed in the housing, a closing drive member and an opening drive member are installed on the sliding rod, the closing drive member and the opening drive member pass through the first sliding groove and are driven by the transmission mechanism to make linear motion in the first sliding groove to operate the handle of the circuit breaker to close and open; the closing drive member comprises a first energy storage member, the transmission mechanism comprises a transmission connecting rod driving the closing drive member, the first energy storage member is connected to the closing drive member, the first energy storage member drives a first linkage groove to cooperate with the transmission connecting rod in a limiting manner, the closing drive member is provided with a first linkage groove which cooperates with the rotation of the transmission connecting rod, the first linkage groove comprises a driving section and an avoidance section, when closing, after the transmission connecting rod passes the dead point from the avoidance section of the first linkage groove to the driving section, the first energy storage member releases energy to provide a closing driving force for the closing drive member.

[0006] Further, the transmission mechanism includes a motor and a gear set connected to the motor, the gear set includes a driving gear matched with the closing drive member, and the driving gear is provided with a matching portion for driving the transmission connecting rod to rotate past the dead point;

[0007] When closing the circuit breaker, the matching part of the driving gear drives the transmission connecting rod to rotate out of the avoidance section, and the first energy storage component is in an energy storage state. When the transmission connecting rod rotates past the dead point to the driving section of the first linkage groove, the first energy storage component releases energy to drive the closing driving component to operate the handle of the circuit breaker to close the circuit breaker. After closing the circuit breaker, the driving gear reverses, and the matching part drives the transmission connecting rod to rotate out of the driving section and causes the first energy storage component to store energy. When the transmission connecting rod rotates from the driving section to the avoidance section of the first linkage groove, the first energy storage component releases energy to restore the closing driving component to the starting position, and the transmission connecting rod is limited in the avoidance section.

[0008] The connection point between the driving section and the avoidance section of the first linkage groove is the dead point position, and the matching part of the driving gear drives the transmission connecting rod to cross the dead point. After the matching part of the driving gear drives the transmission connecting rod to cross the dead point, the first energy storage component releases energy to separate the closing driving component from the matching part of the driving gear.

[0009] Furthermore, a driving part cooperating with the opening drive member is also provided on the driving gear, and the driving part is used to drive the opening drive member to operate the handle of the circuit breaker to open the circuit breaker. After the opening is completed, the opening drive member jointly drives the opening drive member to return to the starting position in the transmission mechanism and the second energy storage member arranged in the shell.

[0010] Further, the driving gear is coaxially installed with the transmission connecting rod, and the transmission connecting rod includes a connecting rod rotating shaft at one end and a connecting rod driving end eccentrically arranged with the connecting rod rotating shaft, and the matching part of the driving gear includes a locking part and an unlocking part arranged at intervals on the driving gear, and the connecting rod driving end, the locking part and the unlocking part are located on a coaxial circle, and the locking part pushes the connecting rod driving end from the driving section of the first linkage groove into the avoidance section, and the first energy storage part releases energy to enable the closing driving part to move quickly and the first linkage groove and the unlocking part are limited and matched, and the unlocking part pushes the connecting rod driving end from the avoidance section of the first linkage groove into the driving section, and the first energy storage part releases energy to enable the closing driving part to move quickly and the first linkage groove and the locking part are limited and matched.

[0011] Furthermore, the mating portion of the driving gear is a first boss disposed on one side of the driving gear, the first boss is in a semi-circular shape and semi-surrounds one side of the driving gear, and two end faces of the first boss serve as a locking portion and an unlocking portion respectively.

[0012] Furthermore, the first linkage groove of the closing drive member includes a closed and straight driving section and a closed and arc-shaped avoidance section; the driving section of the first linkage groove is arranged along the tangential direction of the rotation of the transmission connecting rod.

[0013] Furthermore, the closing drive member includes a first linkage member and a closing member, the first linkage member and the closing member are sleeved on the sliding rod, and the closing member is linked with the first linkage member, the closing member is provided with a closing operating part for operating the circuit breaker handle, and the first energy storage member is connected with the first linkage member; the first linkage member is provided with a first linkage groove for cooperating with the transmission connecting rod, and the first linkage groove has a closed and straight driving section and a closed and arc-shaped avoidance section.

[0014] Furthermore, the first energy storage member is arranged on a sliding rod between the first linkage member and the housing, and an elastic buffer member is sleeved on the sliding rod between the closing member and the first linkage member.

[0015] Further, the first linkage member is connected by a first linkage wall, a second linkage wall and a third linkage wall to form a U-shaped structure, the first linkage wall and the second linkage wall are provided with through holes for the sliding rod to pass through, the first linkage wall is provided with an avoidance area for avoiding the first energy storage member, the first energy storage member is sleeved on the sliding rod below the second linkage wall, and the third linkage wall is provided with a first linkage groove with closed ends, the avoidance section of the first linkage groove is perpendicular to the sliding rod, and the driving section is in a quarter arc shape and is bent to point to the second linkage wall; the closing member is arranged between the first linkage wall and the second linkage wall, the closing member is connected by the first side wall and the second side wall to form a U-shaped structure, and the edge of the second side wall extends in the direction of the first slide groove to form a closing operating part for operating the circuit breaker handle; an elastic buffer is sleeved on the sliding rod between the second side wall of the closing member and the first linkage wall of the linkage member.

[0016] Furthermore, the driving part of the driving gear is a second boss arranged on the outer periphery of the first boss; the opening switch driving member includes a second linkage member, a opening switch member and a second energy storage member, the second linkage member is rotatably installed in the shell, the second boss pushes one end of the second linkage member to rotate the second linkage member and causes the other end of the second linkage member to drive the opening switch member to move linearly to operate the handle of the circuit breaker to open the circuit breaker, and after the opening is completed, the opening switch member is driven to return to the starting position under the joint action of the transmission mechanism and the second energy storage member.

[0017] Furthermore, the height of the second boss is lower than that of the first boss, and the second boss is arranged along the radial direction of the first boss and is opposite to the unlocking portion of the first boss.

[0018] Furthermore, the middle part of the second linkage member is rotatably installed on the connecting shaft, the opening member is sleeved on the sliding rod, the opening member is linked with the second linkage member, and the opening member is provided with a closing operating part for operating the circuit breaker handle; the second linkage member rotates under the drive of the second boss, and the opening member moves linearly along the sliding rod under the drive of the second linkage member to operate the circuit breaker handle to open the circuit breaker, and after the opening is completed, the opening driving member is driven to return to the starting position under the joint action of the transmission mechanism and the second energy storage member.

[0019] Furthermore, the second linkage member is connected by a fourth linkage wall, a fifth linkage wall and a sixth linkage wall to form a U-shaped structure, the fourth linkage wall is used to cooperate with the second boss, the fifth linkage wall is used to drive the opening member to make a linear motion, and the sixth linkage wall is provided with a rotating groove for rotating installation; the opening member is arranged between the fourth linkage wall and the fifth linkage wall, the opening member includes a third side wall and a fourth side wall, the third side wall and the fourth side wall are connected to form a U-shaped structure, the edge of the third side wall extends toward the first sliding groove to form a closing operating part for operating the circuit breaker handle, and a second energy storage member is sleeved on the sliding rod between the third side wall and the fourth side wall, and one end of the second energy storage member is connected to the fourth side wall.

[0020] Furthermore, the sixth linkage wall of the second linkage member is L-shaped, the horizontal edge of the L-shaped sixth linkage wall is horizontally connected to the edge of the fourth linkage wall, the fifth linkage wall is located above the fourth linkage wall and one side of the fifth linkage wall is connected to the vertical edge of the L-shaped sixth linkage wall.

[0021] Furthermore, the transmission mechanism also includes a motor and a gear set connected to the motor, the gear set includes a primary gear, a secondary gear, a tertiary gear, a driving gear and a fourth gear; the motor is meshed with the primary gear through a worm, the primary gear is meshed with the secondary gear, the secondary gear is meshed with the tertiary gear, the tertiary gear is meshed with the fourth gear, the fourth gear is meshed with the driving gear, and the driving gear is coaxially installed with the transmission connecting rod.

[0022] Furthermore, a first bracket and a second bracket are provided in the shell, and the first bracket and the second bracket divide the space between the operating surface and the connecting surface in the shell into a transmission space and a driving space. The transmission mechanism is installed in the transmission space, and the opening drive component passes through the first bracket and is arranged in the transmission space and the driving space and extends out of the first slide groove, and the closing drive component is arranged in the driving space.

[0023] Furthermore, a second slide groove for the opening drive member to pass through is provided on the upper part of the first bracket, and a third slide groove for the transmission connecting rod to slide is provided on the lower part of the first bracket, and the third slide groove is in a three-quarter arc shape, and the transmission connecting rod passes through the third slide groove and cooperates with the first linkage groove; a connecting shaft serving as the rotation center of the opening drive member is provided on the side of the first bracket close to the transmission space, and a first clamping portion and a second clamping portion are respectively provided at the lower end and the upper end of the first bracket, and a sliding rod is provided between the first clamping portion and the second clamping portion.

[0024] Furthermore, a moving device for displacement is installed on the side wall opposite to the operating surface as a connecting surface, and the moving device is used to drive the electric operating device to move to correspond to the handles of different circuit breakers.

[0025] The electric operating device of the circuit breaker of the present invention is provided with a first slide groove for installing a closing drive member and an opening drive member on the shell, and the first slide groove is opposite to the handle of the circuit breaker. This electric operating device for operating the circuit breaker handle from the front can be applied to a cabinet with limited lateral space, and can also avoid tilting during the operation of the circuit breaker handle, causing the circuit breaker contacts to be out of sync; at the same time, the closing drive member is provided with a first energy storage member, and after the transmission connecting rod connected to the closing drive member passes the dead point, the first energy storage member provides the closing drive member with a closing driving force, and the closing speed of the circuit breaker handle is determined by the first energy storage member, which can ensure that the circuit breaker can be closed quickly.

[0026] In addition, the closing drive and the opening drive are both independent structures. When in the initial state, neither the closing nor the opening drive will contact the circuit breaker handle. After the closing or opening action, the drive returns to the initial state under the joint action of the transmission mechanism and the energy storage component, waiting for the next instruction. An elastic buffer is provided on the closing drive to compensate for the fine-tuning of the poor size matching between the action drive and the circuit breaker handle, and can also absorb the closing margin to prevent hard impact on the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the electric operating device of the circuit breaker of the present invention;

[0028] Figure 2 is a schematic diagram of the opening of the electric operating device of the circuit breaker of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the electric operating device of the circuit breaker of the present invention;

[0030] Figure 4 It is a schematic diagram of the internal structure of the electric operating device of the circuit breaker of the present invention (excluding the closing member and part of the sliding rod);

[0031] Figure 5 It is a schematic diagram of the transmission space of the electric operating device of the circuit breaker of the present invention (including the first linkage member);

[0032] Figure 6 is a schematic diagram of a transmission mechanism of an electric operating device of a circuit breaker of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the driving gear of the electric operating device of the circuit breaker of the present invention;

[0034] Figure 8 It is a structural schematic diagram of a second linkage member of the electric operating device of the circuit breaker of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of a first bracket of an electric operating device of a circuit breaker of the present invention;

[0036] Fig.10 It is a structural schematic diagram of a second bracket of the electric operating device of the circuit breaker of the present invention. DETAILED DESCRIPTION

[0037] The following is combined with Figures 1 to 10 The embodiments given below further illustrate the specific implementation of the electric operating device for a circuit breaker of the present invention. The electric operating device for a circuit breaker of the present invention is not limited to the description of the following embodiments.

[0038] An electric operating device for a circuit breaker includes a housing 1 and a transmission mechanism, wherein a side wall of the housing 1 is provided with a first slide groove 101 as an operating surface 11, which is connected to the interior of the housing 1 and is opposite to the handle 5 of the circuit breaker, a sliding rod 102 is installed in the housing 1, and a closing drive member and an opening drive member are installed on the sliding rod 102, the closing drive member and the opening drive member pass through the first slide groove 101 and are driven by the transmission mechanism to make a linear motion in the first slide groove 101 to operate the handle 5 of the circuit breaker to close or open; the closing drive member includes a first energy storage member 71, the transmission mechanism includes a transmission connecting rod 205a driving a closing drive member, the first energy storage member 71 is connected to the closing drive member, the first energy storage member 71 drives the first linkage groove 30a to limit and cooperate with the transmission connecting rod 205a, the closing drive member is provided with a first linkage groove 30a that cooperates with the rotation of the transmission connecting rod 205a, the first linkage groove 30a includes a driving section and an avoidance section, when closing, the transmission connecting rod 205a passes the dead point from the avoidance section of the first linkage groove 30a to the driving section, and the first energy storage member 71 releases energy to provide a closing driving force for the closing drive member.

[0039] The electric operating device of the circuit breaker of the present invention is provided with a first slide groove 101 for installing the closing drive and the opening drive on the housing 1, and the first slide groove 101 is opposite to the handle 5 of the circuit breaker. This electric operating device for front operation of the circuit breaker handle 5 can be applied to a cabinet with limited lateral space, and can also avoid tilting during the operation of the circuit breaker handle 5, causing the circuit breaker contacts to be out of sync. At the same time, the closing drive is provided with a first energy storage member 71. After the transmission connecting rod 205a connected to the closing drive passes the dead point, the first energy storage member 71 provides the closing drive force for the closing drive. The closing speed of the circuit breaker handle 5 is determined by the first energy storage member 71, which can ensure that the circuit breaker can be closed quickly.

[0040] Preferably, as an embodiment, Figure 2 As shown, the electric operating device is also provided with a moving device 6, and the side wall opposite to the operating surface 11 is used as a connecting surface 12 to install the moving device 6 for displacement. Figure 2As shown, the electric operating device is installed on a moving track (not shown in the figure) through a moving device 6. The moving device 6 can drive the electric operating device to move along the moving track to correspond to the handles 5 of different circuit breakers respectively, so as to drive different circuit breakers to perform different closing and opening actions.

[0041] like Figure 1-3 As shown, an electric operating device for a circuit breaker includes a housing 1, a transmission mechanism and a control circuit for controlling the transmission mechanism, a side wall of the housing 1 as an operating surface 11 is provided with a first slide groove 101 connected to the interior of the housing 1 and opposite to the handle 5 of the circuit breaker, a sliding rod 102 is installed in the housing 1, and a closing drive member and an opening drive member are installed on the sliding rod 102, the closing drive member and the opening drive member pass through the first slide groove 101 and are driven by the transmission mechanism to make a linear motion in the first slide groove 101 to operate the handle 5 of the circuit breaker to close and open; the closing drive member includes a first energy storage member 71, the transmission mechanism includes a transmission connecting rod 205a that drives the closing drive member, and after the transmission connecting rod 205a passes the dead point, the first energy storage member 71 provides a closing driving force for the closing drive member.

[0042] like Figure 3-7In the embodiment shown, the transmission mechanism includes a motor 201 and a gear set connected to the motor 201, the gear set includes a driving gear 205, the driving gear 205 is provided with a matching portion for driving the transmission connecting rod 205a to rotate past the dead point, the closing driving member is provided with a first linkage groove 30a matched with the rotation of the transmission connecting rod 205a, the first linkage groove 30a includes a driving section and an avoidance section; the first energy storage member 71 is connected to the closing driving member, the first energy storage member 71 drives the driving section of the first linkage groove 30a to limit the matching with the transmission connecting rod 205a, when closing, the matching portion of the driving gear 205 drives the transmission connecting rod 205a to rotate out of the avoidance section, at this time the first energy storage member 71 is already in an energy storage state, when the transmission connecting rod 205a rotates past the dead point to the driving section of the first linkage groove 30a, the first energy storage member 71 releases energy The amount drives the closing drive member to operate the handle 5 of the circuit breaker to close the circuit breaker; after closing, the driving gear 205 reverses, and the matching portion drives the transmission connecting rod 205a to rotate out from the driving section and causes the first energy storage member 71 to store energy. When the transmission connecting rod 205a rotates from the driving section to the avoidance section of the first linkage groove 30a, the first energy storage member 71 releases energy to restore the closing drive member to the starting position, and the transmission connecting rod 205a is limited in the locking section; when the transmission connecting rod 205a rotates to the connection between the driving section and the avoidance section of the first linkage groove 30a, the transmission connecting rod 205a is in a dead point position, and the transmission connecting rod 205a is driven by the matching portion of the driving gear 205 to cross the dead point. Before the transmission connecting rod 205a crosses the dead point position, the first energy storage member 71 is in an energy storage state. After the transmission connecting rod crosses the dead point position, the first energy storage member 71 releases all or part of the energy. It should be noted that after the matching portion of the driving gear 205 drives the transmission connecting rod 205 a to pass the dead point, part or all of the energy released by the first energy storage member 71 causes the closing driving member to separate from the matching portion of the driving gear 205 .

[0043] Further preferably, a driving part cooperating with the opening drive member is also provided on the driving gear 205, and the driving gear 205 simultaneously drives closing and opening. The driving part is used to drive the opening drive member to operate the handle 5 of the circuit breaker to open the circuit, and the second energy storage member 72 is connected to the opening drive member. After opening, the transmission mechanism and the second energy storage member 72 jointly drive the opening drive member to reset. After opening, the opening drive member returns to the starting position. During the opening process, the transmission connecting rod 205a is always located in the avoidance section.

[0044] During the process of closing the handle 5 of the circuit breaker operated by the closing drive, the transmission mechanism includes two rotation stages: forward rotation before closing and reverse rotation after closing. In the forward rotation stage, the transmission link 205a rotates from the avoidance section of the first linkage groove 30a to the dead point position under the action of the matching part, and the first energy storage member 71 is in an energy storage state. When the transmission link 205a continues to rotate past the dead point and rotates toward the driving section of the first linkage groove 30a, the first energy storage member 71 releases energy to drive the closing drive to quickly move linearly to operate the handle 5 of the circuit breaker to close. In the reverse rotation stage, the transmission link 205a rotates from the driving section of the first linkage groove 30a to the dead point position under the action of the matching part, and the first energy storage member 71 stores energy. When the transmission link 205a continues to rotate past the dead point and enters the avoidance section of the first linkage groove 30a, the first energy storage member 71 can release part of the energy to restore the closing drive to the starting position, but the transmission link 205a is limited in the avoidance section. When opening the circuit breaker is required, the transmission mechanism continues to rotate in the opposite direction, and the driving part of the driving gear 205 drives the opening driving member to operate the handle 5 of the circuit breaker to open the circuit breaker. At this time, the driving gear 205 drives the transmission connecting rod 205a to be still limited in the avoidance section of the first linkage groove 30a; when the opening of the circuit breaker is completed, the opening driving member returns to the starting position under the drive of the transmission mechanism and the joint action of the second energy storage member 72.

[0045] Specifically, a transmission mechanism is installed in the shell 1, and the transmission mechanism includes a motor 201 and a gear set connected to the motor 201, and the gear set includes a primary gear 202, a secondary gear 203, a tertiary gear 204, a driving gear 205 and a fourth gear 206; the motor 201 is meshed with the primary gear 202 through a worm, the primary gear 202 is meshed with the secondary gear 203, the secondary gear 203 is meshed with the tertiary gear 204, the tertiary gear 204 is meshed with the fourth gear 206, and the fourth gear 206 is meshed with the driving gear 205; the driving gear 205 is coaxially installed with the transmission connecting rod 205a.

[0046] Preferred as Figure 4-7As shown, the driving gear 205 is coaxially installed with the transmission connecting rod 205a, and the transmission connecting rod 205a includes a connecting rod rotating shaft at one end and a connecting rod driving end eccentrically arranged with the connecting rod rotating shaft. A matching part for driving the connecting rod driving end of the transmission connecting rod 205a to cross the dead point is provided on the driving gear 205, and the matching part of the driving gear 205 includes a locking part ab1 and an unlocking part ab2 arranged at intervals on the driving gear 205. The connecting rod driving end, the locking part ab1 and the unlocking part ab2 are located on a coaxial circumference, and the locking part ab1 pushes the connecting rod driving end from the first The driving section of a linkage groove 30a enters the avoidance section, and the first energy storage component 71 stores energy in this process and releases part of the energy after crossing the dead point to restore the closing drive component to the starting position. At this time, the connecting rod driving end of the transmission connecting rod 205a is locked in the avoidance section. The locking of the transmission connecting rod 205a can be the lower limit of the mutual cooperation between the locking part ab1 and the connecting rod driving end, or it can be locked through the structure cooperation in the shell 1; the unlocking part ab2 pushes the connecting rod driving end from the avoidance section of the first linkage groove 30a into the driving section, and the first energy storage component 71 releases energy to make the closing drive component move quickly.

[0047] Specifically, Figure 4-5 As shown in the figure, an embodiment of the matching part, the matching part is preferably a first boss 205b in a semi-circular shape, the first boss 205b is semi-circularly surrounding one side of the driving gear 205, the connecting rod driving end of the transmission connecting rod 205a can respectively abut against the two end faces of the first boss 205b after rotation, the transmission connecting rod 205a can freely rotate on the side without the first boss 205b, the two end faces of the first boss 205b are respectively used as the locking part ab1 and the unlocking part ab2, the locking part ab1 pushes the connecting rod driving end from the driving section of the first linkage groove 30a into the avoidance section, and the unlocking part ab2 pushes the connecting rod driving end from the avoidance section of the first linkage groove 30a into the driving section. Of course, the first boss 205b can also be two separate circular bosses, and the two circular bosses are respectively used as the locking part ab1 and the unlocking part ab2.

[0048] Another embodiment of the matching portion, the matching portion of the driving gear 205 is a groove arranged on one side of the driving gear 205, and the groove is semi-circular and semi-surrounds one side of the driving gear 205, and the connecting rod driving end of the transmission connecting rod 205a passes through the groove and extends into the first linkage groove 30a, and the connecting rod driving end of the transmission connecting rod 205a can be respectively abutted against the two inner end surfaces of the groove after rotation, and the two ends of the groove serve as a locking portion ab1 and an unlocking portion ab2 respectively.

[0049] In order to cooperate with the rotation of the transmission connecting rod 205a, a first linkage groove 30a is provided on the closing driving member. Figure 4 , 5As shown, the first linkage groove 30a includes a closed and straight driving section and a closed and arc-shaped avoidance section. When the transmission link 205a is located in the driving section of the first linkage groove 30a, the first energy storage member 71 drives the driving section of the first linkage groove 30a to limit the cooperation with the transmission link 205a. When the transmission link 205a is located at the junction of the driving section and the avoidance section of the first linkage groove 30a, the transmission link 205a is in a dead point position. In practical applications, the junction between the driving end and the avoidance section may be a position slightly past the dead point. The transmission link 205a is limited in the avoidance section of the first linkage groove 30a. The avoidance section of the first linkage groove 30a is arranged opposite to the first boss 205b and the two are cocentric. The driving section of the first linkage groove 30a is arranged along the tangential direction of the rotation of the transmission link 205a.

[0050] A driving part for driving the opening driving member to operate the handle 5 of the circuit breaker to open the circuit breaker is provided on the driving gear 205, and the driving part is preferably a second boss 205c, such as Figure 5-7 As shown, the second boss 205c is arranged on the periphery of the first boss 205b to avoid blocking the rotation of the transmission link 205a. The height of the second boss 205c is preferably lower than that of the first boss 205b. The second boss 205c is arranged along the radial direction of the first boss 205b and is opposite to the unlocking portion ab2 of the first boss 205b. The opening drive member includes a second linkage member, an opening member, and a second energy storage member 72. The second linkage member is rotatably installed in the housing 1. The second boss 205c pushes one end of the second linkage member to rotate the second linkage member and causes the other end of the second linkage member to drive the opening member to move linearly to operate the handle 5 of the circuit breaker to open the circuit. After the opening is completed, the second energy storage member 72 and the transmission mechanism drive the opening member to return to the starting position.

[0051] The closing drive member specifically includes a first linkage member, a closing member and a first energy storage member 71. The first linkage member and the closing member are sleeved on the sliding rod 102, and the closing member is linked with the first linkage member. The closing member is provided with a closing operating portion 31a for operating the circuit breaker handle 5, and the first energy storage member 71 is connected to the first linkage member; the first linkage member is provided with a first linkage groove 30a for cooperating with the transmission connecting rod 205a, and the first linkage groove 30a has a closed and straight driving section and a closed and arc-shaped avoidance section, such as Figure 4 As shown, the transmission connecting rod 205a is located at the dead point position, which is located at the connection between the driving section and the avoidance section of the first linkage groove 30a.

[0052] As an optimization solution, the first energy storage member 71 is arranged on the sliding rod 102 between the first linkage member and the housing 1, and an elastic buffer member 4 is sleeved on the sliding rod 102 between the closing member and the first linkage member. The elastic buffer member 4 can compensate for the fine adjustment of the poor size matching between the action closing drive member and the circuit breaker handle 5, and can also absorb the closing margin to prevent hard impact on the handle 5.

[0053] Specifically, the first linkage member is connected by a first linkage wall 301, a second linkage wall 302 and a third linkage wall 303 to form a U-shaped structure. The first linkage wall 301 and the second linkage wall 302 are provided with through holes for the sliding rod 102 to pass through. The first linkage wall 301 is provided with an escape area for avoiding the first energy storage member 71. The first energy storage member 71 is sleeved on the sliding rod 102 below the second linkage wall 302. The third linkage wall 303 is provided with a first linkage groove 30a with two ends closed. The driving section of the first linkage groove 30a is perpendicular to the sliding rod 102. The movable rod 102 has an avoidance section in the shape of a quarter arc and is bent toward the second linkage wall 302; the closing member is arranged between the first linkage wall 301 and the second linkage wall 302, and the closing member is connected by the first side wall 311 and the second side wall 312 to form a U-shaped structure, and the edge of the second side wall 312 extends toward the first slide groove 101 to form a closing operating part 31a for operating the circuit breaker handle 5; an elastic buffer 4 is sleeved on the sliding rod 102 between the second side wall 312 of the closing member and the first linkage wall 301 of the linkage member.

[0054] Preferably, the first linkage member is larger than the closing member, and the closing member is connected by the first side wall 311, the second side wall 312 and the first connecting wall to form a U-shaped structure. The first side wall 311 and the second side wall 312 are provided with through holes for passing the sliding rod 102. The closing member is located inside the first linkage member, and an elastic buffer member 4 is sleeved on the sliding rod 102 between the second side wall 312 and the first linkage member. The first side wall 311 or the second side wall 312 is provided with a closing operating part 31a for operating the circuit breaker handle 5 to close the circuit breaker. The closing operating part 31a extends out of the first slide groove 101 and is preferably formed by extending from the middle edge of the first side wall 311 toward the first slide groove 101, and the end of the closing operating part 31a is bent downward.

[0055] like Figure 3 , 5As shown in , 8, the opening drive member includes a second linkage member, an opening member and a second energy storage member 72; the opening member and the second energy storage member 72 are sleeved on the sliding rod 102, the opening member is linked with the second linkage member, the opening member is provided with an opening operating part 31b for operating the circuit breaker handle 5, and the second energy storage member 72 is connected to the opening member or the second linkage member; the second linkage member is connected by a fourth linkage wall 304, a fifth linkage wall 305 and a sixth linkage wall 306 to form a U-shaped structure, the fourth linkage wall 304 is used to cooperate with the second boss 205c as a matching part on the driving gear 205, the fifth linkage wall 305 is used to drive the opening member to make a linear motion, and the sixth linkage wall 306 is provided with a rotating groove 30c for rotatable installation of the second linkage member, the rotating groove 30c is used to cooperate with the connecting shaft 103e, and the connected shaft 103e is fixedly arranged in the shell.

[0056] The switch-off member is arranged between the fourth linkage wall 304 and the fifth linkage wall 305, and the switch-off member comprises a U-shaped structure formed by connecting the third side wall 313 and the fourth side wall 314, and the edge of the third side wall 313 extends toward the first slide slot 101 to form a switch-off operating portion 31b for operating the circuit breaker handle 5; the second energy storage member 72 is sleeved on the sliding rod 102 between the third side wall 313 and the fourth side wall 314. Figure 8 As shown, the sixth linkage wall 306 of the second linkage member is L-shaped, the horizontal edge of the L-shaped sixth linkage wall 306 is horizontally connected to the edge of the fourth linkage wall 304, the fifth linkage wall 305 is located above the fourth linkage wall 304 and one side of the fifth linkage wall 305 is connected to the vertical edge of the L-shaped sixth linkage wall 306.

[0057] The opening member is provided with through holes for the sliding rod 102 to pass through on the third side wall 313 and the fourth side wall 314, and the third side wall 313 is provided with an opening operating part 31b for operating the handle 5 of the circuit breaker to open the circuit breaker. The opening operating part 31b is preferably formed integrally by the third side wall 313, and is preferably formed by extending the edge of the third side wall 313 toward the first slide groove 101 to form the opening operating part 31b for operating the circuit breaker handle 5. One end of the second energy storage member 72 is preferably connected to the fourth side wall 314, and the other end of the second energy storage member 72 is connected to the fixed inner wall of the housing 1. A fixed point connection is made, such as a connection with the extension arm 103f on the bracket, the fifth linkage wall 305 of the second linkage member contacts the third side wall 313, when the second linkage member rotates, the fifth linkage wall 305 presses the third side wall 313 to make the opening member move downward along the sliding rod 102 to operate the handle 5 of the circuit breaker, the second energy storage member 72 is sleeved on the sliding rod 102 between the third side wall 313 and the fourth side wall 314 and connected to the fourth side wall 314, after the opening is completed, the second energy storage member 72 drives the opening member to return to the starting position after the second linkage member returns to its original position. Of course, the second energy storage member 72 can also be connected to the fifth linkage wall 305 of the second linkage member and one end in the housing 1, when driving the opening member to open, the fifth linkage wall 305 stores energy in the second energy storage member 72, after the opening is completed, the motor 201 rotates in the closing direction, and under the joint action of the transmission mechanism and the second energy storage member 72, the fifth linkage wall 305 is released to drive the opening member to return to the starting position.

[0058] Combination Figure 3-7It can be seen that when the switch needs to be closed, the driving gear 205 of the transmission mechanism rotates forward. In the figure, the driving gear 205 rotates counterclockwise, the first boss 205b rotates counterclockwise, and the unlocking portion ab2 of the first boss 205b pushes the transmission connecting rod 205a to rotate counterclockwise. The transmission connecting rod 205a passes the dead point under the action of the first boss 205b. It should be noted that in the process of the transmission connecting rod 205a from the avoidance section to the dead point position, the first energy storage member 71 is in the energy storage state. When the transmission connecting rod 205a enters the driving section When the first energy storage member 71 releases energy, the transmission connecting rod 205a moves from the avoidance section through the dead point into the driving section in the first linkage groove 30a, and the closing driving member moves linearly under the action of the first energy storage member 71 until the closing operating part 31a of the closing driving member closes the handle 5. During this process, the transmission connecting rod 205a is separated from the unlocking part ab2 of the first boss 205b under the action of the first energy storage member 71 and moves toward the locking part ab1. After the closing is completed, the driving gear 205 rotates in the opposite direction, which is shown as clockwise in the figure. The transmission link 205a abuts against the locking portion ab1 of the first boss 205b and moves along the first linkage groove 30a, passing the dead point from the driving section and entering the avoidance section. When the transmission link 205a is in the position from the driving section to the dead point, the first energy storage member 71 stores energy. When the transmission link 205a is in the process of rotating from the dead point to the avoidance section, the first energy storage member 71 releases part of the energy to restore the closing drive member to the starting position. At this time, the transmission link 205a is limited to the avoidance section. When the gate is opened, the driving gear 205 continues to rotate in the opposite direction. The middle driving gear 205 still rotates clockwise, and the locking part ab1 of the first boss 205b continues to push the transmission connecting rod 205a so that the driving end of the connecting rod is still in the avoidance section. At this time, the second boss 205c contacts the end face of the fourth linkage wall 304 of the second linkage member under the rotation action of the driving gear 205, and the side of the second boss 205c close to the unlocking part ab2 pushes the second linkage member to rotate counterclockwise around the connecting shaft 103e. At this time, the fifth linkage wall 305 pushes the opening member downward to move downward to operate the handle 5 of the circuit breaker to open the switch.

[0059] It should be noted that in the initial state, the closing drive component and the opening drive component will not contact the handle 5 of the circuit breaker. After the closing drive component or the opening drive component is actuated, it will return to the initial state driven by the transmission mechanism and the energy storage component to wait for the next instruction.

[0060] like Figure 3As shown, in order to ensure the stable installation of each structure in the shell 1, a first bracket 103 and a second bracket 104 are installed in the shell 1, the space between the first bracket 103 and the operating surface 11 is used as a driving space, and the space between the first bracket 103 and the second bracket 104 is used as a transmission space; the transmission mechanism is installed in the transmission space, the opening drive member passes through the first bracket 103 and is arranged in the transmission space and the driving space and extends out of the first slide slot 101, and the closing drive member is arranged in the driving space.

[0061] like Fig. 9 As shown, the lower end and the upper end of the first bracket 103 are respectively provided with a first clamping portion 103a and a second clamping portion 103b. Preferably, the first clamping portion 103a and the second clamping portion 103b are respectively formed by bending the lower end and the upper end of the first bracket 103 toward the direction of the first slide slot 101. The area between the first clamping portion 103a and the second clamping portion 103b serves as the optimal installation area of ​​the sliding rod 102. The sliding rod 102 is fixedly installed on the first clamping portion 103a and the second clamping portion 103b, so that the closing drive member and the opening drive member slide on the sliding rod 102 between the first clamping portion 103a and the second clamping portion 103b. A second slide slot 103c is provided at the upper part of the first bracket 103 for the opening drive to pass through. As shown in the figure, the second slide slot 103c is opposite to the upper part of the first slide slot 101. Preferably, an extension arm 103f bent toward the first slide slot 101 is provided at the upper edge of the second slide slot 103c. The extension arm 103f is used to provide support for one end of the second energy storage member 72. The closing drive is arranged near the first clamping portion 103a, and the opening drive is arranged near the second clamping portion 103b. A space is reserved between the closing drive and the opening drive as a rotation space for the circuit breaker handle 5. The closing drive and the opening drive slide along the sliding rod 102 between the first clamping portion 103a and the second clamping portion 103b. The second linkage member of the opening drive member is completely located in the transmission space, the opening member spans the extension arm 103f and extends into the second slide groove 103c, the third side wall 313 of the opening member passes through the second slide groove 103c on the first bracket 103 and is located below the extension arm 103f, the edge of the third side wall 313 serves as the opening operating part 31b for operating the handle 5 of the circuit breaker to open the circuit, the fourth side wall 314 is located above the extension arm 103f, and the second energy storage member 72 is sleeved on the sliding rod 102 between the extension arm 103f and the fourth side wall 314.

[0062] A third slide groove 103d is provided at the lower part of the first bracket 103 for the transmission link 205a to slide. The third slide groove 103d is in the shape of a three-quarter arc. The transmission link 205a passes through the third slide groove 103d and cooperates with the first linkage groove 30a. The third slide groove 103d is cocentric with the first boss 205b and the avoidance section of the first linkage groove 30a. One end of the third slide groove 103d corresponds to the avoidance section. As a solution for locking the transmission link 205a, a structure for limiting the transmission link 205a can be provided in the third slide groove 103d. For example, a card table (not shown in the figure) is provided in the area corresponding to the avoidance section of the third slide groove 103d, so that the transmission link 205a can pass over the card table with the cooperation of the locking part ab1 or the unlocking part ab2, but the transmission link 205a cannot pass over alone. A connecting shaft 103e (see Figure 5 , Figure 6 ), the connecting shaft 103e cooperates with the rotating groove 30c of the second linkage member.

[0063] like Fig.10 As shown, the second bracket 104 is provided with a connecting ear plate 104a for installing the moving device 6, and the number of the connecting ear plates 104a is two. The two connecting ear plates 104a are relatively arranged on one side of the second bracket 104 close to the connecting surface 12, and the connecting surface 12 is provided with a through hole for the connecting ear plate 104a to pass through. The moving device 6 for driving the shell 1 to move is fixedly installed between the two connecting ear plates 104a passing through the shell 1; one end of the second bracket 104 is provided with a limiting plate 104b for fixing the motor 201.

[0064] The first bracket 103 and the second bracket 104 are preferably made of metal materials.

[0065] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is 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. An electric operating device for a circuit breaker, comprising a housing (1) and a transmission mechanism, characterized in that: A side wall of the housing (1) is provided as an operating surface (11) with a first slide groove (101) communicating with the interior of the housing (1) and opposite to the handle (5) of the circuit breaker; a sliding rod (102) is installed in the housing (1); a closing drive member and an opening drive member are installed on the sliding rod (102); the closing drive member and the opening drive member pass through the first slide groove (101) and are driven by a transmission mechanism to perform linear motion in the first slide groove (101) to operate the handle (5) of the circuit breaker to close or open the circuit breaker; the closing drive member comprises a first energy storage member (71); the transmission mechanism comprises a driving member A transmission connecting rod (205a) of a closing drive member, a first energy storage member (71) connected to the closing drive member, the first energy storage member (71) driving the first linkage groove (30a) to limit and cooperate with the transmission connecting rod (205a), the closing drive member is provided with a first linkage groove (30a) that cooperates with the rotation of the transmission connecting rod (205a), the first linkage groove (30a) comprising a driving section and an avoidance section, when closing, after the transmission connecting rod (205a) passes through the dead point from the avoidance section of the first linkage groove (30a) to the driving section, the first energy storage member (71) releases energy to provide a closing driving force for the closing drive member.

2. The electric operating device for circuit breaker according to claim 1, characterized in that: The transmission mechanism comprises a motor (201) and a gear set connected to the motor (201), the gear set comprising a driving gear (205) matched with a closing drive member, the driving gear (205) being provided with a matching portion for driving a transmission connecting rod (205a) to rotate past a dead point; When closing the circuit, the matching part of the driving gear (205) drives the transmission connecting rod (205a) to rotate out of the avoidance section, and the first energy storage member (71) is in an energy storage state. When the transmission connecting rod (205a) rotates past the dead point to the driving section of the first linkage groove (30a), the first energy storage member (71) releases energy to drive the closing driving member to operate the handle (5) of the circuit breaker to close the circuit. After closing the circuit, the driving gear (205) reverses, and the matching part drives the transmission connecting rod (205a) to rotate out of the driving section and causes the first energy storage member (71) to store energy. When the transmission connecting rod (205a) rotates from the driving section to the avoidance section of the first linkage groove (30a), the first energy storage member (71) releases energy to restore the closing driving member to the starting position, and the transmission connecting rod (205a) is limited in the avoidance section. The connection point between the driving section and the avoidance section of the first linkage groove (30a) is a dead point position, and the matching part of the driving gear (205) drives the transmission connecting rod (205a) to pass the dead point. After the matching part of the driving gear (205) drives the transmission connecting rod (205a) to pass the dead point, the first energy storage member (71) releases energy to separate the closing driving member from the matching part of the driving gear (205).

3. The electric operating device for circuit breaker according to claim 2, characterized in that: A driving part cooperating with the opening drive member is also provided on the driving gear (205), and the driving part is used to drive the opening drive member to operate the handle (5) of the circuit breaker to open the circuit breaker. After the opening is completed, the opening drive member drives the opening drive member to return to the starting position together with the transmission mechanism and the second energy storage member (72) arranged in the housing (1).

4. The electric operating device for circuit breaker according to claim 2, characterized in that: The driving gear (205) is coaxially mounted with the transmission connecting rod (205a); the transmission connecting rod (205a) comprises a connecting rod rotating shaft at one end and a connecting rod driving end eccentrically arranged with respect to the connecting rod rotating shaft; the matching portion of the driving gear (205) comprises a locking portion (ab1) and an unlocking portion (ab2) arranged at intervals on the driving gear (205); the connecting rod driving end, the locking portion (ab1) and the unlocking portion (ab2) are located on a coaxial circumference; the locking portion (ab1) and the unlocking portion (ab2) are arranged on a coaxial circle; 1) pushing the connecting rod driving end from the driving section of the first linkage groove (30a) into the avoidance section, the first energy storage member (71) releasing energy to enable the closing driving member to move quickly and the first linkage groove (30a) and the unlocking portion (ab2) to cooperate in limiting position, the unlocking portion (ab2) pushing the connecting rod driving end from the avoidance section of the first linkage groove (30a) into the driving section, the first energy storage member (71) releasing energy to enable the closing driving member to move quickly and the first linkage groove (30a) and the locking portion (ab1) to cooperate in limiting position.

5. The electric operating device for circuit breaker according to claim 4, characterized in that: The matching portion of the driving gear (205) is a first boss (205b) arranged on one side of the driving gear (205); the first boss (205b) is in the shape of a semi-circular ring and semi-surrounds one side of the driving gear (205); and the two end faces of the first boss (205b) serve as a locking portion (ab1) and an unlocking portion (ab2), respectively.

6. The electric operating device for a circuit breaker according to any one of claims 1 to 5, characterized in that: The first linkage groove (30a) of the closing drive member comprises a closed and straight driving section and a closed and arc-shaped avoidance section; the driving section of the first linkage groove (30a) is arranged along the tangential direction of the rotation of the transmission connecting rod (205a).

7. The electric operating device for circuit breaker according to claim 1 or 2, characterized in that: The closing drive member comprises a first linkage member and a closing member, the first linkage member and the closing member are sleeved on a sliding rod (102), and the closing member is linked to the first linkage member, the closing member is provided with a closing operating portion (31a) for operating a circuit breaker handle (5), and the first energy storage member (71) is connected to the first linkage member; the first linkage member is provided with a first linkage groove (30a) for cooperating with a transmission connecting rod (205a), and the first linkage groove (30a) has a closed and straight driving section and a closed and arc-shaped avoidance section.

8. The electric operating device for circuit breaker according to claim 7, characterized in that: The first energy storage component (71) is arranged on a sliding rod (102) between the first linkage component and the housing (1), and an elastic buffer component (4) is sleeved on the sliding rod (102) between the closing component and the first linkage component.

9. The electric operating device for circuit breaker according to claim 8, characterized in that: The first linkage member is connected by a first linkage wall (301), a second linkage wall (302) and a third linkage wall (303) to form a U-shaped structure. The first linkage wall (301) and the second linkage wall (302) are provided with through holes for the sliding rod (102) to pass through. The first linkage wall (301) is provided with an escape zone for avoiding the first energy storage member (71). The first energy storage member (71) is sleeved on the sliding rod (102) below the second linkage wall (302). The third linkage wall (303) is provided with a first linkage groove (30a) with two ends closed. The escape section of the first linkage groove (30a) is perpendicular to the sliding rod. (102), the driving section is in the shape of a quarter arc and is bent toward the second linkage wall (302); the closing member is arranged between the first linkage wall (301) and the second linkage wall (302), the closing member is connected by a first side wall (311) and a second side wall (312) to form a U-shaped structure, and the edge of the second side wall (312) extends toward the first slide groove (101) to form a closing operating part (31a) for operating the circuit breaker handle (5); an elastic buffer (4) is sleeved on the sliding rod (102) between the second side wall (312) of the closing member and the first linkage wall (301) of the linkage member.

10. The electric operating device for circuit breaker according to claim 5, characterized in that The driving part of the driving gear (205) is a second boss (205c) arranged on the outer periphery of the first boss (205b); the opening drive member comprises a second linkage member, an opening member and a second energy storage member (72); the second linkage member is rotatably mounted in the housing (1); the second boss (205c) pushes one end of the second linkage member to rotate the second linkage member and causes the other end of the second linkage member to drive the opening member to perform linear motion to operate the handle (5) of the circuit breaker to open the circuit; after the opening is completed, the opening member is driven to return to the starting position under the joint action of the transmission mechanism and the second energy storage member (72).

11. The electric operating device for circuit breaker according to claim 10, characterized in that: The height of the second boss (205c) is lower than that of the first boss (205b), and the second boss (205c) is arranged along the radial direction of the first boss (205b) and is opposite to the unlocking portion (ab2) of the first boss (205b).

12. The electric operating device for circuit breaker according to claim 10 or 11, characterized in that: The middle part of the second linkage member is rotatably mounted on the connecting shaft (103e), the opening member is sleeved on the sliding rod (102), the opening member is linked with the second linkage member, and the opening member is provided with an opening operating part (31b) for operating the circuit breaker handle (5); the second linkage member is driven to rotate by the second boss (205c), and the opening member is driven by the second linkage member to make a linear motion along the sliding rod (102) to operate the circuit breaker handle (5) to open the circuit breaker, and after the opening is completed, the opening driving member is driven to return to the starting position under the joint action of the transmission mechanism and the second energy storage member (72).

13. The electric operating device for circuit breaker according to claim 12, characterized in that: The second linkage member is connected by a fourth linkage wall (304), a fifth linkage wall (305) and a sixth linkage wall (306) to form a U-shaped structure; the fourth linkage wall (304) is used to cooperate with the second boss (205c); the fifth linkage wall (305) is used to drive the gate-opening member to perform linear motion; the sixth linkage wall (306) is provided with a rotation groove (30c) for rotational installation; the gate-opening member is arranged between the fourth linkage wall (304) and the fifth linkage wall (305); the gate-opening member includes a third side wall (313) and a fourth side wall (314), the third side wall (313) and the fourth side wall (314) are connected to form a U-shaped structure, the edge of the third side wall (313) extends in the direction of the first slide groove (101) to form a switch-off operating portion (31b) for operating the circuit breaker handle (5), and a second energy storage component (72) is sleeved on the sliding rod (102) between the third side wall (313) and the fourth side wall (314), and one end of the second energy storage component (72) is connected to the fourth side wall (314).

14. The electric operating device for circuit breaker according to claim 13, characterized in that: The sixth linkage wall (306) of the second linkage member is L-shaped, and the horizontal edge of the L-shaped sixth linkage wall (306) is horizontally connected to the edge of the fourth linkage wall (304), and the fifth linkage wall (305) is located above the fourth linkage wall (304) and one side of the fifth linkage wall (305) is connected to the vertical edge of the L-shaped sixth linkage wall (306).

15. The electric operating device for circuit breaker according to claim 1 or 2, characterized in that: The transmission mechanism further comprises a motor (201) and a gear set connected to the motor (201), the gear set comprising a primary gear (202), a secondary gear (203), a tertiary gear (204), a driving gear (205) and a fourth gear (206); the motor (201) is meshed with the primary gear (202) via a worm, the primary gear (202) is meshed with the secondary gear (203), the secondary gear (203) is meshed with the tertiary gear (204), the tertiary gear (204) is meshed with the fourth gear (206), the fourth gear (206) is meshed with the driving gear (205), and the driving gear (205) is coaxially mounted with the transmission connecting rod (205a).

16. The electric operating device for circuit breaker according to claim 1 or 2, characterized in that: A first bracket (103) and a second bracket (104) are provided in the housing (1); the first bracket (103) and the second bracket (104) divide the space between the operating surface (11) and the connecting surface (12) in the housing (1) into a transmission space and a drive space; the transmission mechanism is installed in the transmission space; the opening drive member passes through the first bracket (103) and is arranged in the transmission space and the drive space and extends out of the first slide groove (101); and the closing drive member is arranged in the drive space.

17. The electric operating device for circuit breaker according to claim 16, characterized in that: A second slide groove (103c) for the opening gate driving member to pass through is provided at the upper part of the first bracket (103), and a third slide groove (103d) for the transmission connecting rod (205a) to slide is provided at the lower part of the first bracket (103), and the third slide groove (103d) is in the shape of a three-quarter arc, and the transmission connecting rod (205a) passes through the third slide groove (103d) and cooperates with the first linkage groove (30a); a connecting shaft (103e) serving as the rotation center of the opening gate driving member is provided on one side of the first bracket (103) close to the transmission space, and a first clamping portion (103a) and a second clamping portion (103b) are provided at the lower end and the upper end of the first bracket (103) respectively, and a sliding rod (102) is provided between the first clamping portion (103a) and the second clamping portion (103b).

18. The electric operating device for circuit breaker according to claim 1, characterized in that: A moving device (6) for displacement is installed on the side wall opposite to the operating surface (11) as a connecting surface (12), and the moving device (6) is used to drive the electric operating device to move to correspond to handles (5) of different circuit breakers.

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