Intelligent circuit breaker electric control device

Abstract

The utility model discloses an intelligent circuit breaker electric control device, which comprises a motor, a gear set and a handle driving assembly which are arranged in a shell structure, the handle driving assembly comprises a driving wheel and a push rod sleeve which are arranged in a linkage mode, and the gear set comprises a first gear which is coaxially and rotatably arranged with the driving wheel. The first gear comprises two convex tooth parts arranged at the two ends of the notch groove, the driving wheel is provided with a connecting rod extending and penetrating into the notch groove, and when the first gear rotates, the connecting rod is pushed through the convex tooth parts so as to drive the driving wheel to rotate in the same direction. The torque of the motor is converted into the acting force needed for pushing the breaker handle to be switched on and switched off through the cooperation of the first gear and the driving wheel, the driving wheel is higher in structural strength, better in transmission effect and good in structural stability, the driving wheel can be used in cooperation with breaker handles of different models through the push rod sleeve, the universality is good, and the setting cost is reduced. And the use performance of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to an intelligent circuit breaker electric control device. Background Art

[0002] With the promotion of smart power technology, according to the requirements of intelligent power supply network in my country, the small circuit breakers of the power grid terminal actuators must have the functions of tripping and closing when executing the upper end signal. For this reason, the use of smart circuit breaker products is increasing. Smart circuit breakers are execution units composed of power electronics technology and digital control devices, replacing the auxiliary switches and auxiliary relays of conventional mechanical structures. It can realize automatic reclosing operation, transmit a control signal, and automatically close or open the circuit breaker through remote control, without the need for personnel to manually open and close the circuit breaker, effectively saving manpower and material resources.

[0003] Existing Chinese patent document CN117855001A discloses a reclosing switch, including a circuit breaker, a handle installed on the circuit breaker, and a tripping member linked to the handle, the handle is linked to the transmission shaft, and one side of the circuit breaker is provided with a main board, a driving member, a gear set and a tripping rod, the driving member is a motor that drives the gear set to rotate, the gear set includes a worm gear, a linkage wheel, a tripping wheel and a transmission wheel that are meshed in sequence, the worm gear is linked to the motor, the transmission shaft is installed on the transmission wheel, the tripping wheel drives the tripping rod to swing through a first cam, and the swinging of the tripping rod will trigger the circuit breaker to trip, and the tripping rod and the tripping member are linked through the tripping shaft. It can be seen from the structure of the above-mentioned reclosing switch that it still has the following problems: 1. Since the transmission shaft connects the transmission wheel and the handle, the transmission shaft is directly subjected to the transmission impact of the transmission wheel. In addition, the transmission shaft is relatively long, which easily causes the transmission shaft to be unevenly stressed and produce shaking or even bending deformation, thereby causing the handle to shake and the transmission to be not smooth enough; 2. The tripping force of the tripping member is very small, and a force of about 1N will cause the circuit breaker to trip, and the sensitivity is very high. Therefore, once the tripping rod is stuck and cannot swing, the circuit breaker will be in a sliding state all the time, affecting the use of the circuit breaker. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the transmission wheel is connected to the handle through the transmission shaft, which easily causes the transmission shaft to be unevenly stressed and produce shaking or even bending deformation, resulting in shaking of the handle and unstable transmission.

[0005] In order to solve the above technical problems, the utility model provides an intelligent circuit breaker electric control device, comprising a housing structure installed on one side of the circuit breaker body, and a motor, a gear set and a handle drive assembly arranged on the housing structure, wherein the gear set transmits motion and force between the motor and the handle drive assembly, and the handle drive assembly comprises a driving wheel rotatably arranged on the housing structure, and a push rod sleeve linked to the driving wheel and extending out of the housing structure for linking the circuit breaker handle;

[0006] The gear set includes a first gear coaxially rotatable with the driving wheel and arranged on the housing structure, the first gear includes a notch groove arranged on its outer periphery, and two convex teeth arranged at both ends of the notch groove; the driving wheel has a connecting rod extending and penetrating into the notch groove, and when the first gear rotates forward or reversely, the convex teeth push the connecting rod to drive the driving wheel to rotate in the same direction, thereby linking the push rod sleeve to drive the circuit breaker handle to perform closing or opening actions.

[0007] As a preferred solution, a rotating shaft passing through the first gear and rotatably connected to the housing structure is provided on one side of the driving wheel, and a linkage groove connected to the push rod sleeve is provided on the other side thereof. The push rod sleeve has a Z-shaped structure and includes a mounting rod portion matched and inserted into the linkage groove, and a linkage rod portion extending and sleeved on the circuit breaker handle.

[0008] As a preferred solution, the cross-sectional shapes of the linkage groove and the mounting rod are respectively matching polygonal structures, a mounting hole is provided at one end of the mounting rod, a mounting shaft is correspondingly provided in the linkage groove and is extruded and inserted into the mounting hole, an anti-error groove is provided on the side wall of the linkage groove, and an anti-error rib cooperating with the anti-error groove is provided on the side wall of the mounting rod.

[0009] As a preferred solution, a locking structure is provided between the housing structure and the driving wheel for limiting the handle driving assembly from driving the circuit breaker handle to perform a closing action.

[0010] As a preferred solution, the locking structure includes:

[0011] A locking plate, slidably disposed on the top of the housing structure, and having a first locking hook disposed at the bottom thereof facing the driving wheel;

[0012] The second lock hook is arranged on the driving wheel, and the driving wheel drives the first lock hook and the second lock hook to be arranged relatively when the circuit breaker is opened; the locking plate has a locking position for driving the first lock hook and the second lock hook to be connected to form a limiting fit, and an unlocking position for driving the first lock hook and the second lock hook to separate and release the limiting fit.

[0013] As a preferred solution, a slide groove structure suitable for the sliding of the locking plate is provided on the top of the shell structure, and the locking plate has a limiting end extending out of the slide groove structure, and a locking hole is arranged on the limiting end; when the locking plate is in the locking position, the locking hole is driven to be exposed outside the top of the shell structure, and a locking piece is passed through the locking hole to limit the locking plate to the locking position.

[0014] As a preferred embodiment, the handle drive assembly includes a driven wheel that forms a coaxial linkage with the driving wheel, the first gear is rotatably connected between the driving wheel and the driven wheel, and a first slot for connecting an external accessory module is provided on the back side of the driven wheel facing away from the driving wheel, and an arc-shaped hole exposing the first slot is opened on the side of the shell structure.

[0015] As a preferred solution, the rotating shaft of the driving wheel is matched and inserted into the shaft hole of the driven wheel, a second slot is provided on the front side of the driven wheel facing the driving wheel, and one end of the connecting rod is provided with a plug-in block inserted into the second slot.

[0016] As a preferred embodiment, a control circuit board connected to the motor is also provided in the shell structure, and a detection structure is provided between the control circuit board and the driven wheel, and the detection structure includes a first protrusion and a second protrusion arranged at intervals on the front side of the driven wheel, and a first detection switch and a second detection switch correspondingly arranged on the control circuit board and respectively located on the movement paths of the first protrusion and the second protrusion; the first gear drives the driving wheel to rotate to the closing position during the forward rotation, and the first protrusion triggers the first detection switch to operate when the driving wheel reaches the closing position; the first gear drives the driving wheel to rotate to the opening position during the reverse rotation, and the second protrusion triggers the second detection switch to operate when the driving wheel reaches the opening position.

[0017] As a preferred solution, the control circuit board is also provided with a third detection switch located on the movement path of the convex tooth portion. The first gear drives the driving wheel to reset to the initial position after completing the opening or closing action, and drives one of the convex teeth to trigger the action of the third detection switch.

[0018] Compared with the prior art, the technical solution of the utility model has the following advantages:

[0019] 1. In the intelligent circuit breaker electric control device provided by the utility model, according to the linkage arrangement of the driving wheel and the push rod sleeve, the connecting rod of the driving wheel is inserted into the notch groove of the first gear, and two convex teeth cooperating with the connecting rod are provided at both ends of the notch groove. When the first gear rotates forward, one of the convex teeth pushes the connecting rod, thereby pushing the driving wheel and linking the push rod sleeve to drive the circuit breaker handle to perform the closing action. Conversely, when the first gear rotates reversely, the other convex teeth push the connecting rod, thereby pushing the driving wheel and linking the push rod sleeve to drive the circuit breaker handle to perform the opening action. In this way, the automatic reclosing function of the circuit breaker is realized. The electric control device of the technical solution converts the torque of the motor into the force required to push the circuit breaker handle to open and close the switch through the cooperation of the first gear and the driving wheel, avoiding the use of the traditional transmission shaft to connect the gear and the handle, and effectively reducing the shaking and deflection of the handle caused by the transmission shaft. This driving wheel has higher structural strength, better transmission effect, good structural stability, reduces the load on the motor, and can extend the service life of the motor. It can also be used with different types of circuit breakers through the push rod sleeve, making the electric control device and the circuit breaker more comprehensive, more selective, and more versatile, reducing the setting cost and improving the product performance.

[0020] 2. In the intelligent circuit breaker electric control device provided by the utility model, the locking structure includes a locking plate slidably arranged on the top of the shell structure, and a first locking hook arranged at the bottom of the locking plate, and a second locking hook is provided on the driving wheel to form a limit match with the first locking hook. When the driving wheel is in the opening position when the circuit breaker is opened, the first locking hook is driven to be opposite to the second locking hook. At this time, the locking plate is slid to the locking position, and the first locking hook is driven to be connected with the second locking hook to form a limit match. In this way, the driving wheel is restricted from rotating, thereby keeping the circuit breaker in a locked opening state, which can prevent the circuit breaker from being manually closed by mistake, and prevent the electric control device from being operated remotely without knowing it, thereby ensuring the safe operation of line inspection and maintenance work, avoiding the traditional method of using the tripping rod to trigger the tripping member to achieve tripping, preventing the risk of electric shock caused by mistaken closing, and improving the safety and reliability of product use.

[0021] 3. In the intelligent circuit breaker electric control device provided by the utility model, a first slot for connecting an external accessory module is provided on the back of the driven wheel, and an arc-shaped hole exposing the first slot is opened on the side of the shell structure accordingly. When the driven wheel rotates following the driving wheel, the first slot is driven to move in the arc-shaped hole. This structural setting enables the external accessory module to be inserted into the first slot through the linkage rod and to be linked with the driven wheel. This design can meet the needs of assembling the external accessory module on one side of the electric control device, further improving the use function of the circuit breaker.

[0022] 4. In the intelligent circuit breaker electric control device provided by the utility model, the rotating shaft of the driving wheel is matched and inserted into the shaft hole of the driven wheel, and the torque is transmitted between the driving wheel and the driven wheel through the hole-shaft matching. In order to improve the connection stability between the driving wheel and the driven wheel, a second slot is provided on the front side of the driven wheel, and the plug-in block at one end of the connecting rod is correspondingly inserted into the second slot, so that the driving wheel and the driven wheel are reliably connected together, and the coaxial linkage installation effect is achieved, the strength of the connection structure between the two is enhanced, the installation is stable and reliable, and loosening is avoided. At the same time, a position space suitable for installing and accommodating the first gear is reserved between the driving wheel and the driven wheel, the structure is more compact, and the installation is convenient.

[0023] 5. In the intelligent circuit breaker electric control device provided by the utility model, a first protrusion and a second protrusion are arranged on the front of the driven wheel, and two first detection switches and a second detection switch are arranged correspondingly on the control circuit board. When the driving wheel is linked to the push rod sleeve to complete the closing operation, the driven wheel drives the first protrusion to trigger the first detection switch to act, so that the first detection switch sends a signal indicating that the circuit breaker is closed, and when the driving wheel is linked to the push rod sleeve to complete the opening operation, the driven wheel drives the second protrusion to trigger the second detection switch to act, so that the second detection switch sends a signal indicating that the circuit breaker is opened, so that the opening and closing status information of the circuit breaker can be accurately known. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the electric control device of the intelligent circuit breaker of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the electric control device of the intelligent circuit breaker of the utility model in the closed state;

[0027] Figure 3 It is a structural schematic diagram of the electric control device of the intelligent circuit breaker of the utility model in the open state;

[0028] Figure 4 It is a structural schematic diagram of the handle drive assembly of the utility model;

[0029] Figure 5 This is a schematic diagram of the split structure of the handle drive assembly of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the driven wheel of the utility model;

[0031] Figure 7 It is a schematic diagram of the installation structure of the first detection switch and the second detection switch of the utility model;

[0032] Figure 8 This is a schematic diagram of the installation structure of the third detection switch of the utility model.

[0033] Explanation of the accompanying drawings: 1. Shell structure; 2. Motor; 3. Gear set; 31. First gear; 311. Notch groove; 312. Protruding tooth portion; 32. Second gear; 33. Third gear; 4. Driving wheel; 41. Connecting rod; 42. Rotating shaft; 43. Linkage groove; 44. Mounting shaft; 45. Anti-error groove; 46. Second locking hook; 5. Push rod sleeve; 51. Mounting rod portion; 52. Linkage rod portion; 53. Mounting hole; 54. Anti-error rib; 6. Locking plate; 61. First locking hook; 62. Limiting end; 63. Locking hole; 7. Driven wheel; 71. First slot; 72. Second slot; 73. First protrusion; 74. Second protrusion; 8. Control circuit board; 91. First detection switch; 92. Second detection switch; 93. Third detection switch. DETAILED DESCRIPTION

[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example

[0038] This embodiment provides Figure 1-8An intelligent circuit breaker electric control device shown in the figure comprises a housing structure 1 installed on one side of the circuit breaker body, and a motor 2, a gear set 3 and a handle drive assembly arranged on the housing structure 1, wherein the gear set 3 transmits motion and force between the motor 2 and the handle drive assembly, and the handle drive assembly comprises a drive wheel 4 rotatably arranged on the housing structure 1, and a push rod sleeve 5 which is arranged in linkage with the drive wheel 4 and extends out of the housing structure 1 for linkage with the circuit breaker handle;

[0039] The gear set 3 includes a first gear 31 coaxially rotatable with the driving wheel 4 and arranged on the housing structure 1. The first gear 31 includes a notch groove 311 arranged on its outer periphery and two convex teeth 312 arranged at both ends of the notch groove 311. The driving wheel 4 has a connecting rod 41 extending and penetrating into the notch groove 311. When the first gear 31 rotates forward or reversely, the convex teeth 312 push the connecting rod 41 to drive the driving wheel 4 to rotate in the same direction, thereby linking the push rod sleeve 5 to drive the circuit breaker handle to perform closing or opening actions.

[0040] In the above embodiment, when the circuit breaker closing operation is performed, the first gear 31 will rotate forward under the drive of the motor 2 and push the connecting rod 41 through one of the convex tooth portions 312, thereby pushing the driving wheel 4 and linking the push rod sleeve 5 to drive the circuit breaker handle to perform the closing action; conversely, when the circuit breaker opening operation is performed, the first gear 31 will rotate reversely under the drive of the motor 2 and push the connecting rod 41 through the other convex tooth portion 312, thereby pushing the driving wheel 4 and linking the push rod sleeve 5 to drive the circuit breaker handle to perform the opening action, thereby realizing the automatic reclosing function of the circuit breaker. The control device converts the torque of the motor 2 into the force required to push the circuit breaker handle to open and close the switch through the cooperation of the first gear 31 and the driving wheel 4, avoiding the use of the traditional transmission shaft to connect the gear and the handle, and effectively reducing the shaking and deflection of the handle caused by the transmission shaft. The driving wheel 4 has higher structural strength, better transmission effect, good structural stability, reduces the load on the motor, and can extend the service life of the motor. In addition, it can also be used in conjunction with different types of circuit breakers through the push rod sleeve, so that the electric control device and the circuit breaker are more comprehensive, more selective, and more versatile, which reduces the setting cost and improves the product performance.

[0041] Combine the following Figure 1 , Figure 4-6 The specific structure of the driving wheel and the push rod sleeve is described in detail:

[0042] A rotating shaft 42 passing through the first gear 31 and rotatably connected to the housing structure 1 is provided on one side of the driving wheel 4, and a linkage groove 43 connected to the push rod sleeve 5 is provided on the other side thereof. The push rod sleeve 5 is in a Z-shaped structure and includes a mounting rod portion 51 matched and inserted into the linkage groove 43, and a linkage rod portion 52 extending and sleeved on the circuit breaker handle. The linkage rod portion 52 extends along its length direction and is provided with a handle slot suitable for sleeved on the circuit breaker handle. With this structural arrangement, the push rod sleeve 5 is sleeved on the circuit breaker handle through the handle slot, which is convenient to assemble, increases the contact area, and has good installation stability, so that a linkage fit is formed between the driving wheel 4, the push rod sleeve 5 and the circuit breaker handle.

[0043] It is further preferred that the push rod sleeve 5 is detachably connected to the linkage groove 43 of the driving wheel 4 through the mounting rod 51, the cross-sectional shapes of the linkage groove 43 and the mounting rod 51 are respectively matching polygonal structures, a mounting hole 53 is provided at one end of the mounting rod 51, and a mounting shaft 44 which is extruded and inserted into the mounting hole 53 is correspondingly provided in the linkage groove 43, thereby realizing the linkage cooperation between the driving wheel 4 and the push rod sleeve 5 and transmitting motion and force between the two, an anti-error groove 45 is provided on the side wall of the linkage groove 43, and an anti-error rib 54 which cooperates with the anti-error groove 45 is provided on the side wall of the mounting rod 51. With this structural arrangement, the cooperation between the anti-error groove 45 and the anti-error rib 54 can ensure that the mounting rod 51 is inserted into the linkage groove 43 in the set position direction, thereby ensuring that the push rod sleeve can be accurately mounted on the circuit breaker handle.

[0044] In order to ensure that the circuit breaker is in an open state and cannot be closed during line maintenance, a locking structure is provided between the housing structure 1 and the driving wheel 4 to limit the handle driving assembly from driving the circuit breaker handle to perform the closing action. Figure 1-3The locking structure includes: a locking plate 6 slidably arranged on the top of the shell structure 1, and a first locking hook 61 arranged at the bottom of the locking plate 6 and facing the driving wheel 4, and a second locking hook 46 arranged on the driving wheel 4, wherein the locking plate 6 has a locking position that drives the first locking hook 61 to be connected with the second locking hook 46 to form a limited fit, and an unlocking position that drives the first locking hook 61 to separate from the second locking hook 46 and release the limited fit. With this structural arrangement, when the circuit breaker is closed, the driving wheel 4 drives the first locking hook 61 and the second locking hook 46 to be staggered with each other. Only when the circuit breaker is opened, the driving wheel 4 is in the opening position and drives the first locking hook 61 to be opposite to the second locking hook 46. At this time, the locking plate 6 is slid to the locking position, and at the same time, the first locking hook 61 is driven to connect with the second locking hook 46 to form a limit fit, thereby limiting the rotation of the driving wheel, thereby keeping the circuit breaker in a locked open state, which can prevent the circuit breaker from being manually closed by mistake, and prevent the electric control device from being operated remotely without knowing it, thereby ensuring the safe operation of line inspection and maintenance work, avoiding the use of the traditional method of using the trip rod to trigger the circuit breaker to trip and open, preventing the risk of electric shock caused by mistaken closing, and improving the safety and reliability of product use.

[0045] like Figure 4-6 As shown, the handle drive assembly includes a driven wheel 7 that forms a coaxial linkage with the driving wheel 4, the locking plate 6 has a limit end 62 that extends out of the slide groove structure, and a locking hole 63 arranged on the limit end 62. When the locking plate 6 is in the unlocked position, it drives the limit end 62 to be flush with the top of the shell structure 1, and when it is in the locked position, it drives the limit end 62 and the locking hole 63 to be exposed outside the top of the shell structure 1. The locking member passes through the locking hole 63 to limit the locking plate 6 in the locked position. This locking member can be a locking rod or a lock, which can prevent the locking plate 6 from returning from the locked position to the unlocked position, thereby realizing the locking function of the electric control device to make the circuit breaker in a state where it cannot be closed, thereby preventing the circuit breaker from being closed by mistake during line maintenance and overhaul.

[0046] In this embodiment, a driven wheel 7 is provided in the shell structure 1 and forms a coaxial linkage with the driving wheel 4. The first gear 31 is rotatably connected between the driving wheel 4 and the driven wheel 7. A first slot 71 for connecting an external accessory module is provided on the back side of the driven wheel 7 facing away from the driving wheel 4. An arc-shaped hole exposing the first slot 71 is opened on the side of the shell structure 1. When the driven wheel 7 rotates with the driving wheel, it drives the first slot 71 to move in the arc-shaped hole. This structural setting allows the external accessory module to be inserted into the first slot 71 through the linkage rod to achieve linkage with the driven wheel 7. This design can meet the needs of assembling the external accessory module on one side of the electric control device. The accessory module can select an external detection signal auxiliary switch, etc., to further enhance the use function of the circuit breaker.

[0047] As a specific structural setting, the rotating shaft 42 of the driving wheel 4 is matched and inserted into the shaft hole of the driven wheel 7, and the front side of the driven wheel 7 facing the driving wheel 4 is provided with a second slot 72, and one end of the connecting rod 41 is provided with a plug-in block inserted into the second slot 72. The torque is transmitted between the driving wheel 4 and the driven wheel 7 through the hole-shaft matching. In order to improve the stability of the connection between the driving wheel and the driven wheel, the plug-in block at one end of the connecting rod 41 is correspondingly inserted into the second slot 72, so that the driving wheel 4 and the driven wheel 7 are reliably connected together and the coaxial linkage installation effect is achieved. At the same time, the strength of the connection structure between the two is enhanced, the installation is stable and reliable, and loosening is avoided. A space suitable for installing and accommodating the first gear is reserved between the driving wheel and the driven wheel, and the structure is more compact and easy to install.

[0048] Combination Figure 1 , Figure 7-8As shown, a control circuit board 8 connected to the motor 2 is also provided in the housing structure 1, and a detection structure is provided between the control circuit board 8 and the driven wheel 7, and the detection structure includes a first protrusion 73 and a second protrusion 74 which are arranged at intervals on the front side of the driven wheel 7, and a first detection switch 91 and a second detection switch 92 which are correspondingly arranged on the control circuit board 8 and are respectively located on the movement paths of the first protrusion 73 and the second protrusion 74, wherein the first gear 31 drives the driving wheel 4 to rotate to the closing position during the forward rotation, and the first protrusion 73 triggers the first detection switch 91 to operate when the driving wheel 4 reaches the closing position; the first gear 31 drives the driving wheel 4 to rotate to the opening position during the reverse rotation, and the second protrusion 74 triggers the second detection switch 92 to operate when the driving wheel 4 reaches the opening position. The advantage of such a design is that when the driving wheel 4 links with the push rod sleeve 5 to complete the closing operation, the driven wheel 7 drives the first protrusion 73 to trigger the first detection switch 91 to operate, so that the first detection switch 91 sends a signal indicating that the circuit breaker is closed, and when the driving wheel 4 links with the push rod sleeve 5 to complete the opening operation, the driven wheel 7 drives the second protrusion 74 to trigger the second detection switch 92 to operate, so that the second detection switch 92 sends a signal indicating that the circuit breaker is opened, so that the opening and closing state information of the circuit breaker can be accurately known.

[0049] It is important to understand that reference Figure 2-3 The gear set 3 includes a third gear 33 linked to the rotating shaft 42 of the motor 2, and a plurality of second gears 32 meshingly connected between the third gear 33 and the first gear 31. After the first gear 31 drives the driving wheel 4 to complete the opening or closing action, it will be reset to the initial position under the drive of the motor 2. When the first gear 31 is in the initial position, it drives the two convex teeth 312 to maintain a certain movable distance with the connecting rod 41, so that the driving wheel is in a free state. At this time, the circuit breaker can be opened and closed freely. In order to detect whether the first gear 31 is reset to the initial position, refer to Figure 8 The control circuit board 8 is also provided with a third detection switch 93 located on the motion path of the convex tooth portion 312. When the first gear 31 is reset to the initial position, it drives one of the convex tooth portions 312 to trigger the third detection switch 93 to operate, so that the third detection switch 93 sends a signal indicating the reset of the first gear 31. At this time, the staff can know that the circuit breaker handle is in a free state and can perform manual opening and closing operations. The first detection switch 91, the second detection switch 92 and the third detection switch 93 are preferably micro switches. The forward and reverse rotation in this article only indicate that the rotation directions of a certain component are opposite, but not its actual rotation direction.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An intelligent circuit breaker electric control device, comprising a housing structure (1) mounted on one side of a circuit breaker body, and a motor (2), a gear set (3) and a handle drive assembly arranged on the housing structure (1), wherein the gear set (3) transmits motion and force between the motor (2) and the handle drive assembly, and is characterized in that: The handle driving assembly comprises a driving wheel (4) rotatably arranged on the housing structure (1), and a push rod sleeve (5) arranged in linkage with the driving wheel (4) and extending out of the housing structure for linkage with the circuit breaker handle; The gear set (3) comprises a first gear (31) coaxially rotatable with the driving wheel (4) and arranged on the housing structure (1); the first gear (31) comprises a notch groove (311) arranged on its outer periphery and two convex tooth portions (312) arranged at both ends of the notch groove (311); the driving wheel (4) has a connecting rod (41) extending and penetrating into the notch groove (311); when the first gear (31) rotates in a forward or reverse direction, the convex tooth portion (312) pushes the connecting rod (41) to drive the driving wheel (4) to rotate in the same direction, thereby linking the push rod sleeve (5) to drive the circuit breaker handle to perform a closing or opening action.

2. The intelligent circuit breaker electric control device according to claim 1 is characterized in that: A rotating shaft (42) is provided on one side of the driving wheel (4) and passes through the first gear (31) to be rotatably connected to the housing structure (1), and a linkage groove (43) is provided on the other side of the driving wheel (4) to be connected to the push rod sleeve (5). The push rod sleeve (5) has a Z-shaped structure and comprises a mounting rod portion (51) matched and inserted into the linkage groove (43), and a linkage rod portion (52) extending and sleeved on the circuit breaker handle.

3. The intelligent circuit breaker electric control device according to claim 2 is characterized in that: The cross-sectional shapes of the linkage groove (43) and the mounting rod (51) are respectively matched polygonal structures; a mounting hole (53) is provided at one end of the mounting rod (51); a mounting shaft (44) is correspondingly provided in the linkage groove (43) and is extruded and inserted into the mounting hole (53); an anti-error groove (45) is provided on the side wall of the linkage groove (43); and an anti-error rib (54) is provided on the side wall of the mounting rod (51) and is matched with the anti-error groove (45).

4. The intelligent circuit breaker electric control device according to any one of claims 1 to 3, characterized in that: A locking structure is provided between the housing structure (1) and the driving wheel (4) for limiting the handle driving assembly from driving the circuit breaker handle to perform a closing action.

5. The intelligent circuit breaker electric control device according to claim 4 is characterized in that: The locking structure comprises: A locking plate (6) is slidably arranged on the top of the housing structure, and a first locking hook (61) facing the driving wheel (4) is arranged at the bottom thereof; The second lock hook (46) is arranged on the driving wheel (4), and the driving wheel (4) drives the first lock hook (61) to be opposite to the second lock hook (46) when the circuit breaker is opened; the locking plate (6) has a locking position for driving the first lock hook (61) to be connected with the second lock hook (46) to form a limiting fit, and an unlocking position for driving the first lock hook (61) to be separated from the second lock hook (46) and release the limiting fit.

6. The intelligent circuit breaker electric control device according to claim 5, characterized in that: The top of the shell structure (1) is provided with a slide groove structure suitable for the sliding of the locking plate (6); the locking plate (6) has a limiting end (62) extending out of the slide groove structure, and a locking hole (63) arranged on the limiting end (62); when the locking plate (6) is in the locking position, the locking hole (63) is driven to be exposed outside the top of the shell structure (1), and a locking member is passed through the locking hole (63) to limit the locking plate (6) to the locking position.

7. The intelligent circuit breaker electric control device according to claim 1, characterized in that: The handle driving assembly comprises a driven wheel (7) coaxially linked with the driving wheel (4); the first gear (31) is rotatably connected between the driving wheel (4) and the driven wheel (7); a first slot (71) for connecting an external accessory module is provided on the back side of the driven wheel (7) facing away from the driving wheel (4); and an arc-shaped hole exposing the first slot (71) is provided on the side of the shell structure (1).

8. The intelligent circuit breaker electric control device according to claim 7, characterized in that: The rotating shaft (42) of the driving wheel (4) is matched and inserted into the shaft hole of the driven wheel (7); a second slot (72) is provided on the front side of the driven wheel (7) facing the driving wheel (4); and a plug-in block is provided at one end of the connecting rod (41) to be inserted into the second slot (72).

9. The intelligent circuit breaker electric control device according to claim 1, characterized in that: A control circuit board (8) connected to the motor (2) is also provided in the housing structure (1); a detection structure is provided between the control circuit board (8) and the driven wheel (7); the detection structure comprises a first protrusion (73) and a second protrusion (74) arranged at intervals on the front face of the driven wheel (7); and a first detection switch (91) and a second detection switch (92) correspondingly arranged on the control circuit board (8) and respectively located on the movement paths of the first protrusion (73) and the second protrusion (74); during the forward rotation of the first gear (31), the driving wheel (4) is driven to rotate to a closing position, and the first protrusion (73) triggers the first detection switch (91) to operate when the driving wheel (4) reaches the closing position; during the reverse rotation of the first gear (31), the driving wheel (4) is driven to rotate to an opening position, and the second protrusion (74) triggers the second detection switch (92) to operate when the driving wheel (4) reaches the opening position.

10. The intelligent circuit breaker electric control device according to claim 9, characterized in that: The control circuit board (8) is further provided with a third detection switch (93) located on the movement path of the convex tooth portion (312); the first gear (31) drives the driving wheel (4) to reset to an initial position after completing an opening or closing action, and drives one of the convex tooth portions (312) to trigger the action of the third detection switch (93).

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