阅读说明：本技术 一种智能断路器用电动分合闸装置 (Electric switching-on and switching-off device for intelligent circuit breaker ) 是由 王焱 于 2021-10-25 设计创作，主要内容包括：本发明公开了一种智能断路器用电动分合闸装置,包括安装于壳体结构的驱动组件和手柄传动结构,手柄传动结构包括转动设置在壳体结构的传动手柄,通过转轴可转动设置于传动手柄的安装内腔中的受驱部件,在执行分合闸操作时,受驱部件上的齿轮结构受到驱动组件的驱动下带动两个驱动凸轮同步转动,通过两个驱动凸轮抵接在传动手柄内部的两个凸台结构上,对传动手柄施加执行合闸或分闸所需的驱动力,通过两个驱动凸台与两个凸台结构相抵形成了两处受力配合面,增大了结构强度,受力更加均匀稳定,提升齿轮结构使用寿命,传动手柄通过推杆联动部可以跟不同型号断路器配合使用,降低设置成本,提升产品的使用性能和市场竞争力。(The invention discloses an electric switching-on and switching-off device for an intelligent circuit breaker, which comprises a driving assembly and a handle transmission structure, wherein the driving assembly is arranged on a shell structure, the handle transmission structure comprises a transmission handle rotationally arranged on the shell structure, a driven part can be rotationally arranged in an installation inner cavity of the transmission handle through a rotating shaft, when switching-on and switching-off operations are executed, a gear structure on the driven part is driven by the driving assembly to drive two driving cams to synchronously rotate, the two driving cams abut against two boss structures in the transmission handle to apply driving force required by executing switching-on or switching-off to the transmission handle, two driven bosses abut against the two boss structures to form two stressed matching surfaces, the structural strength is increased, the stress is more uniform and stable, the service life of the gear structure is prolonged, and the transmission handle can be matched with circuit breakers of different models through a push rod linkage part, the setting cost is reduced, and the service performance and the market competitiveness of the product are improved.)

1. An electric switching-on and switching-off device for an intelligent circuit breaker comprises an electric control module arranged on one side of a circuit breaker body (9); the electric control module comprises a shell structure (1), and a driving assembly (4) and a handle transmission structure which are arranged on the shell structure (1), wherein the driving assembly (4) drives a breaker handle (91) on a breaker body (9) to perform switching-on or switching-off actions through the handle transmission structure; characterized in that, the handle transmission structure includes:

the transmission handle (2) is rotatably arranged on the shell structure (1) and comprises an installation inner cavity (21), two boss structures (22) formed in the installation inner cavity (21) around the rotation center of the transmission handle (2) according to an arc track, and a push rod linkage part (23) which is exposed above the shell structure (1) and is in linkage fit with the breaker handle (91), wherein a spacing gap is formed between the two boss structures (22) in an opposite mode;

the driven part (3) is rotatably arranged in the mounting inner cavity (21) through a rotating shaft and comprises a gear structure (31) correspondingly connected between the two boss structures (22) and two driving cams (32) symmetrically arranged on the side surfaces of two sides of the gear structure (31), and the two boss structures (22) are respectively positioned on the motion tracks of the two driving bosses; the gear structure (31) is connected with the driving assembly (4) and drives the two driving bosses to rotate in the forward direction or in the reverse direction under the driving of the driving assembly (4), so that the two boss structures (22) are driven to perform switching-on or switching-off actions by the driving handle (2) when being synchronously pushed by the two driving bosses.

2. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 1, characterized in that: the push rod linkage part (23) is formed in a long strip shape on the arc surface of the top of the transmission handle (2) and is provided with a handle clamping groove suitable for being sleeved on the breaker handle (91).

3. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 2, wherein: two ends of each of the two boss structures (22) are respectively provided with a group of first grooves (221) and a group of second grooves (222), and the two driving cams (32) drive the transmission handle (2) to perform switching-on when abutting against the first grooves (221) and drive the transmission handle (2) to perform switching-off when abutting against the second grooves (222); after the transmission handle (2) is switched on or switched off, the gear structure (31) drives the driving cam (32) to rotate for a certain stroke away from the boss structure (22) under the driving of the driving assembly (4) and then reset to the initial position.

4. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 3, wherein: the driving cam (32) comprises a round shaft part (321) provided with a shaft hole (33) and an arc boss part connected with the round shaft part (321), and two reinforcing convex ribs are respectively arranged between the inner walls of two sides of the mounting inner cavity (21) and the two boss structures (22); the boss structure (22) is provided with an arc groove (223) between the first groove (221) and the second groove (222), the round shaft portion (321) is rotatably connected to the arc groove (223), and two ends of the boss portion respectively abut against and push against the first groove (221) and the second groove (222) along with the rotation process of the driving cam (32).

5. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 4, wherein: the utility model discloses a drive shaft, including drive handle (2), gear structure (31), drive cam (32) and drive handle (2), drive handle (2) and driven part (3) coaxial rotation set up, correspond respectively on gear structure (31), drive cam (32) and the drive handle (2) and be provided with shaft hole (33) that are used for wearing to establish the pivot, follow on the both sides lateral wall of drive handle (2) the axial extension shaping in shaft hole (33) has two hollow axostylus axostyle (24), be provided with on shell structure (1) and rotate two location axle (11) that link to each other with two hollow axostylus axostyles (24), the pivot both ends are passed hollow axostylus axostyle (24) and are rotated and are connected in two location axle (11).

6. The electric switching-on and switching-off device for the intelligent circuit breaker according to any one of claims 1 to 5, wherein: still be equipped with control connection in shell structure (1) control circuit board (5) of drive assembly (4), control circuit board (5) with be provided with between the handle transmission structure and be used for detecting the detection structure of circuit breaker body (9) operating condition information.

7. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 6, wherein: arc-shaped grooves (25) are respectively formed in the side walls of the two sides of the transmission handle (2) corresponding to the opening of the installation inner cavity (21); the detection structure comprises two trigger rods (61) which are arranged on the side wall of one side of the transmission handle (2) and close to the two ends of the arc-shaped groove (25), and two first trigger switches (51) which are arranged on the control circuit board (5) and are respectively positioned on the motion paths of the two trigger rods (61), wherein the two trigger rods (61) drive the two first trigger switches (51) to be alternately opened or closed when the transmission handle (2) completes switching on or off; or the like, or, alternatively,

the detection structure comprises two tested pieces (7) arranged on the side wall of one side of the transmission handle (2) and a position sensing switch (53) correspondingly arranged on the control circuit board (5), wherein the position sensing switch (53) respectively detects the two tested pieces (7) and triggers to open when the transmission handle (2) completes switching on or switching off.

8. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 7, wherein: the detection structure further comprises a cylindrical structure (62) arranged on one of the driving cams (32) towards the control circuit board (5), a protruding block (63) formed on the top edge of the cylindrical structure (62), and a second trigger switch (52) arranged on the control circuit board (5), wherein the cylindrical structure (62) reciprocates along the arc-shaped groove (25), and the gear structure (31) drives the protruding block (63) to drive the second trigger switch (52) to be switched on when rotating to an initial position; or the like, or, alternatively,

the detection structure further comprises a detected piece (7) arranged in the concave hole in the top of the cylindrical structure (62) and a position sensing switch (53) correspondingly arranged on the control circuit board (5), wherein the position sensing switch (53) detects the detected piece (7) on the cylindrical structure (62) and triggers to be turned on when the gear structure (31) rotates to the initial position.

9. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 1, characterized in that:

an accommodating section (12) suitable for accommodating the driving assembly (4) and a cover plate part buckled on the accommodating section (12) to cover the driving assembly (4) are arranged in the shell structure (1), and the accommodating section (12) is communicated with a handle section where the handle transmission structure is located; the driving assembly (4) comprises a motor (41) arranged in the accommodating section (12), a worm (42) arranged on an output shaft of the motor (41) in a linkage mode, and at least one transmission gear (43) connected between the worm (42) and the gear structure (31) in a meshing mode, wherein the gear structure (31) is an incomplete gear.

10. The electric switching-on and switching-off device for the intelligent circuit breaker according to any one of claims 1 to 9, wherein: an arc-shaped tripping hole (13) is formed between the shell structure (1) and the breaker body (9), a tripping shaft is arranged in the breaker body (9) corresponding to the tripping hole (13), and a tripping structure (8) for driving the tripping shaft to perform tripping action is arranged on the shell structure (1); the trip structure (8) comprises:

the driving block (81) is slidably arranged in the shell structure (1), one end of the driving block moves upwards to extend out of the top of the shell structure (1) when being driven by external force, one end of the driving block (81) is locked outside the top of the shell structure (1) through a locking assembly, and an open slot suitable for accommodating one end of the driving block (81) is formed in the top of the shell structure (1);

the rotating push rod (82) is rotatably arranged in the shell structure (1), is connected with the driving block (81) and is provided with a driving lever structure which penetrates into the tripping hole (13) and is matched with the tripping shaft; when the driving block (81) moves towards the outside of the shell structure (1), the rotating push rod (82) is pushed to rotate, and the rotating push rod (82) drives the tripping shaft through a deflector rod structure to realize tripping action;

and the spring structure is arranged between the shell structure (1) and the driving block (81) along the moving direction of the driving block (81), and applies elastic force for restoring and moving downwards in the shell structure (1) to the driving block (81).

11. The electric switching-on and switching-off device for the intelligent circuit breaker according to claim 10, wherein: the driving block (81) is including setting up drive hypotenuse (811) of its one side, and connecting arc constant head tank (812) of drive hypotenuse (811) upper end, swing rod (82) have sliding connection in round pole portion (821) between drive hypotenuse (811) and arc constant head tank (812), drive block (81) promote through drive hypotenuse (811) when shifting up round pole portion (821), in order to drive swing rod (82) drive the driving lever structure rotates.

Technical Field

The invention relates to the technical field of low-voltage electric appliances, in particular to an electric switching-on and switching-off device for an intelligent circuit breaker.

Background

Along with the popularization of the smart power grid, the use of the electric energy metering device of the prepayment ammeter is more and more popularized, the traditional manually operated circuit breaker cannot meet the requirements of the smart power grid, and therefore, the use amount of the intelligent circuit breaker product matched with the special use of the prepayment ammeter is larger and larger.

For example, chinese patent document CN 204537958U discloses a circuit breaker with a coaxial transmission mechanism, which includes a circuit breaker and a switching module for controlling switching of the circuit breaker, where the circuit breaker includes a first housing, and a handle, a tripping mechanism, a moving contact, and a fixed contact are disposed in the first housing; the opening and closing module comprises a second shell, a motor, a gear transmission mechanism and a driving wheel are arranged in the second shell, the motor drives the driving wheel through the gear transmission mechanism, the driving wheel is provided with a transmission shaft which is coaxially connected with the driving wheel in a linkage mode, and the transmission shaft penetrates through the axis of the handle and drives the handle to rotate. Among the above-mentioned circuit breaker, because handle and drive wheel are connected to the transmission shaft for the transmission shaft directly receives the final stage impact action of drive wheel, can lead to the fact the impact to the transmission shaft when gear drive drives the drive wheel and rotates and rock the problem, makes the unbalanced and production of transmission shaft atress rock the bending deformation condition even, thereby leads to the handle to rock along with the transmission shaft together, and the transmission is not steady, influences the automatic reclosing operation.

For example, chinese patent document CN212907611U discloses a single module width actuator for automatic reclosing, which comprises a housing, an electric control mechanism, an operating handle, a linkage gear and a reset torsion spring, wherein the operating handle is disposed outside the housing and is linked with the linkage gear, the electric control mechanism comprises a motor, a gear transmission assembly and a control unit, the gear transmission assembly comprises a plurality of gear sets in transmission with the linkage gear, an installation space is formed on a transmission part of the operating handle, the linkage gear is disposed in the installation space through a rotating shaft, a gear tooth notch is formed on an outer edge of the linkage gear along a circumferential direction, two abutting surfaces are formed at the gear tooth notch, and a limit protruding strip abutting against the abutting surfaces is formed in the installation space on the transmission part, the reclosing actuator can form linkage relation by only sleeving the operating handle on the breaker handle, but the actuator still has the following problems as seen from the structure of the actuator: the linkage gear is only provided with a half gear tooth part, and the two abutting surfaces are connected with two gear teeth at two ends of the gear tooth part of the linkage gear, namely, the two abutting surfaces are used as side surface parts of the two gear teeth, the stress surface matched with abutting is relatively small, the torque is large, so that the gear tooth part also bears large pressure when the abutting surfaces are stressed, and the gear tooth part is easily damaged or even broken due to stress impact in the long-term frequent use process, the structural stability is poor, the service life of the gear is shortened, and the service performance of a product is influenced.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problems that the gear tooth part of the linkage gear in the prior art is synchronously stressed when the abutting surface is stressed, the gear tooth part is easy to damage or even break, the structural stability is poor, and the use performance of a product is influenced, so that the electric switching-on and switching-off device has good transmission stability, plays a role in protecting the gear part, uniformly and stably applies force to the handle part, and can be matched with circuit breakers of different models for use.

In order to solve the technical problem, the invention provides an electric switching-on and switching-off device for an intelligent circuit breaker, which comprises a circuit breaker body and an electric control module arranged on one side of the circuit breaker body; the electric control module comprises a shell structure, and a driving assembly and a handle transmission structure which are arranged on the shell structure, wherein the driving assembly drives a breaker handle on a breaker body to perform switching-on or switching-off actions through the handle transmission structure; the handle transmission structure comprises:

the transmission handle is rotatably arranged on the shell structure and comprises an installation inner cavity, two boss structures which are formed in the installation inner cavity around the rotation center of the transmission handle according to an arc track and a push rod linkage part which is exposed above the shell structure and forms linkage fit with the breaker handle, and a spacing gap is formed between the two boss structures;

the driven part is rotatably arranged in the mounting inner cavity through a rotating shaft and comprises a gear structure correspondingly connected between the two boss structures and two driving cams symmetrically arranged on the side surfaces of two sides of the gear structure, and the two boss structures are respectively positioned on the motion tracks of the two driving bosses; the gear structure is connected with the driving assembly and drives the two driving bosses to rotate in the forward direction or in the reverse direction under the driving of the driving assembly, so that the two boss structures are driven by the driving bosses to drive the transmission handle to perform switching-on or switching-off actions when being synchronously pushed by the two driving bosses.

As a preferred scheme, the push rod linkage part is formed in a long strip shape on the arc surface of the top of the transmission handle, and is provided with a handle clamping groove suitable for being sleeved on the handle of the circuit breaker.

As an optimal scheme, the transmission handle and the driven part are coaxially and rotatably arranged, shaft holes used for penetrating through the rotating shaft are correspondingly formed in the gear structure, the driving cam and the transmission handle respectively, two hollow shaft rods are formed in the side walls of the two sides of the transmission handle along the axial extension of the shaft holes, two positioning shafts which are rotatably connected with the two hollow shaft rods are arranged on the shell structure, and the two ends of the rotating shaft penetrate through the hollow shaft rods to be rotatably connected into the two positioning shafts.

As a preferable scheme, two ends of each of the two boss structures are respectively provided with a group of first grooves and a group of second grooves, and the two driving cams drive the transmission handle to perform switching-on when abutting against the first grooves and drive the transmission handle to perform switching-off when abutting against the second grooves; after the transmission handle realizes switching on or switching off, the gear structure drives the driving cam to rotate for a certain stroke away from the boss structure under the driving of the driving assembly and then resets to an initial position.

As a preferred scheme, the driving cam comprises a round shaft part provided with the shaft hole and an arc boss part connected with the round shaft part, and two reinforcing convex ribs are respectively arranged between the inner walls of two sides of the mounting inner cavity and the two boss structures; the boss structure is provided with an arc groove between the first groove and the second groove, the round shaft part is rotatably connected in the arc groove, and two ends of the boss part are respectively abutted and pushed in the first groove and the second groove along with the rotation process of the driving cam.

As a preferred scheme, a control circuit board for controlling and connecting the driving assembly is further arranged in the shell structure, and a detection structure for detecting the working state information of the circuit breaker body is arranged between the control circuit board and the handle transmission structure.

As a preferred scheme, arc-shaped grooves are respectively formed on the side walls of the two sides of the transmission handle corresponding to the opening of the installation inner cavity; the detection structure comprises two trigger rods which are arranged on the side wall of one side of the transmission handle and close to the two ends of the arc-shaped groove, and two first trigger switches which are arranged on the control circuit board and are respectively positioned on the motion paths of the two trigger rods, wherein the two trigger rods drive the two first trigger switches to be alternately opened or closed when the transmission handle completes switching on or switching off; or the like, or, alternatively,

the detection structure comprises two tested parts arranged on the side wall of one side of the transmission handle and position sensing switches correspondingly arranged on the control circuit board, and the position sensing switches respectively detect the two tested parts and trigger the two tested parts to be opened when the transmission handle completes switching on or switching off.

As a preferable scheme, the detection structure further comprises a cylindrical structure arranged on one of the driving cams towards the control circuit board, a protruding block formed at the edge of the top of the cylindrical structure, and a second trigger switch arranged on the control circuit board, the cylindrical structure reciprocates along the arc-shaped groove, and the gear structure drives the protruding block to drive the second trigger switch to be turned on when rotating to the initial position; or the like, or, alternatively,

the detection structure further comprises a detected piece arranged in the concave hole at the top of the cylindrical structure and a position sensing switch correspondingly arranged on the control circuit board, wherein the position sensing switch detects the detected piece on the cylindrical structure and triggers the detected piece to be started when the gear structure rotates to the initial position.

As a preferred scheme, an accommodating section suitable for accommodating the driving assembly and a cover plate part buckled on the accommodating section to cover the driving assembly are arranged in the shell structure, and the accommodating section is communicated with a handle section where the handle transmission structure is located; the driving assembly comprises a motor arranged in the accommodating interval, a worm arranged on an output shaft of the motor in a linkage manner, and at least one transmission gear meshed and connected between the worm and the gear structure, wherein the gear structure is an incomplete gear and is provided with a circular wheel part suitable for being connected in the interval gap.

As a preferred scheme, an arc-shaped tripping hole is formed between the shell structure and the circuit breaker body, a tripping shaft is arranged in the circuit breaker body corresponding to the tripping hole, and a tripping structure for driving the tripping shaft to perform tripping action is arranged on the shell structure; the trip structure includes:

the driving block is arranged in the shell structure in a sliding mode, one end of the driving block moves upwards to extend out of the top of the shell structure when driven by external force, one end of the driving block is locked outside the top of the shell structure through a locking assembly, and an open slot suitable for accommodating one end of the driving block is formed in the top of the shell structure;

the rotary push rod is rotatably arranged in the shell structure, is connected with the driving block and is provided with a deflector rod structure which penetrates into the tripping hole and is matched with the tripping shaft; when the driving block moves towards the outside of the shell structure, the rotating push rod is pushed to rotate, and the rotating push rod drives the tripping shaft through the deflector rod structure to realize tripping action;

and the spring structure is arranged between the shell structure and the driving block along the moving direction of the driving block and applies elastic force for resetting and moving downwards in the shell structure to the driving block.

As a preferred scheme, the driving block comprises a driving bevel edge and an arc-shaped positioning groove, the driving bevel edge is arranged on one side of the driving block, the arc-shaped positioning groove is connected to the upper end of the driving bevel edge, the rotary push rod is provided with a circular rod part which is connected between the driving bevel edge and the arc-shaped positioning groove in a sliding mode, and when the driving block moves upwards, the circular rod part is pushed through the driving bevel edge so as to drive the rotary push rod to drive the shifting lever structure to rotate.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the invention provides an electric switching-on and switching-off device for an intelligent circuit breaker, which is arranged in an installation inner cavity of a transmission handle according to the rotation of a driven part, when switching-on and switching-off operation is executed, a gear structure on the driven part is driven by a driving component to drive two driving cams to synchronously rotate, and the two driving cams abut against two boss structures in the transmission handle, so that driving force required by executing switching-on or switching-off is applied to the transmission handle, and the design has the advantages that two driving bosses abut against the two boss structures at two sides of the gear structure to form two stress matching surfaces, the structural strength is increased, larger torque action can be borne, the stress is more uniform and stable, the matching transmission is stable and reliable, the gear teeth part on the gear structure is not in any contact with the transmission handle to avoid damage, and the service life of the gear structure is prolonged, and, this transmission handle forms the linkage cooperation through push rod linkage portion and circuit breaker handle to drive circuit breaker and realize reclosing operation when transmission handle carries out switching-on or separating brake action, the design both can avoid the circuit breaker handle to receive the impact of final stage gear again, transmission stability is good, can also use with the cooperation of different model circuit breakers, it is more comprehensive to make electronic divide-shut brake device and the supporting use of circuit breaker, the selectivity is more, the commonality is good, reduce the cost of setting, promote the performance and the market competitiveness of product.

2. In the electric switching-on and switching-off device for the intelligent circuit breaker, when the gear structure rotates forwards under the driving of the driving assembly, the two driving bosses are driven to abut against and act on the first grooves of the two boss structures, so that the driving handle is driven to execute a switching-on action; on the contrary, when the gear structure is driven by the driving assembly to rotate reversely, the gear structure can drive the two driving bosses to abut against and push the second grooves of the two boss structures, so that the driving handle is driven to perform a switching-on action, the first groove and the second groove are designed to play a fixed-point connection role between the boss structures and the driving bosses, stress points are concentrated, and the matching transmission is stable; in addition, after the circuit breaker realizes switching on or switching off, the gear structure rotates under drive assembly's drive and resets to initial position to drive cam with boss structure separation, namely make gear structure and drive boss no longer spacing support the transmission handle of switching on or switching off the floodgate and target in place, make transmission handle along with the circuit breaker handle can the free activity, thereby can realize the manual divide-shut brake operation of circuit breaker.

3. In the electric switching-on and switching-off device for the intelligent circuit breaker, two trigger rods are arranged on the side wall of one side of a transmission handle, two first trigger switches are correspondingly arranged on a control circuit board, the two touch rods rotate along with the transmission handle, and when the transmission handle completes switching-on operation, one trigger rod drives one first trigger switch to be switched on, so that the first trigger switch sends a signal for indicating the switching-on of the circuit breaker; when the transmission handle finishes the opening operation, the trigger rod drives the other trigger switch to be opened, so that the first trigger switch sends a signal for indicating the opening of the circuit breaker, and the opening and closing working information of the circuit breaker can be accurately known.

4. In the electric switching-on and switching-off device for the intelligent circuit breaker, one end of a driving block is pulled out of an open slot at the top of a shell by hand, the driving block pushes a rotary push rod to rotate by a certain angle in the upward moving process, so that the rotary push rod triggers a tripping shaft to perform tripping action through a deflector rod structure in the rotating process, tripping and switching-off of the circuit breaker are realized, then a locking end extending out of the open slot is locked through a locking assembly to prevent the driving block from resetting and moving into the shell structure, so that the tripping shaft is always positioned at a tripping position under the limiting action of the deflector rod structure, the circuit breaker is kept in a locked switching-off state, the manual misoperation of the circuit breaker can be prevented, the misoperation of a reclosing device under the unknown condition can be prevented to perform remote switching-on, and the safe operation of line maintenance work can be ensured by preventing the accidental switching-on of the circuit breaker, the structure is simple in design and reliable in locking, safe tripping and opening of the circuit breaker are achieved, the risk of electric shock caused by mistaken closing is prevented, and the safety and the reliability of product use are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an electric switching device for an intelligent circuit breaker according to the present invention;

fig. 2 is a schematic structural diagram of the electric switching device in a switching-on state;

fig. 3 is a schematic structural diagram of the electric opening and closing device in an opening state;

FIG. 4 is a schematic view of the split construction of the drive handle and driven components of the present invention;

FIG. 5 is a schematic structural view of a driven component of the present invention;

FIG. 6 is a schematic structural diagram of the housing structure of the present invention;

FIG. 7 is a schematic view of the mounting structure of the detection structure of the present invention;

description of reference numerals: 1. a housing structure; 11. positioning the shaft; 12. an accommodating section; 13. a release hole; 2. A drive handle; 21. installing an inner cavity; 22. a boss structure; 221. a first groove; 222. a second groove; 223. a circular arc groove; 23. a push rod linkage part; 24. a hollow shaft; 25. an arc-shaped slot; 3. a driven component; 31. a gear structure; 32. a drive cam; 321. a round shaft portion; 322. a cam portion; 33. a shaft hole; 4. a drive assembly; 41. a motor; 42. a worm; 43. a transmission gear; 5. a control circuit board; 51. A first trigger switch; 52. a second trigger switch; 53. a position sensing switch; 61. a trigger lever; 62. A cylindrical structure; 63. a raised block; 7. a measured piece; 8. a tripping structure; 81. a drive block; 811. a driving bevel edge; 812. an arc-shaped positioning groove; 82. rotating the push rod; 821. a round bar part; 9. a circuit breaker body; 91. Breaker handle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The embodiment provides an electric switching-on and switching-off device for an intelligent circuit breaker as shown in fig. 1 to 7, which comprises an electric control module installed on one side of a circuit breaker body 9; the electric control module comprises a shell structure 1, and a driving assembly 4 and a handle transmission structure which are arranged on the shell structure 1, wherein the driving assembly 4 drives a breaker handle 91 on a breaker body 9 to perform switching-on or switching-off actions through the handle transmission structure; the handle transmission structure comprises:

the transmission handle 2 is rotatably arranged on the shell structure 1 and comprises an installation inner cavity 21, two boss structures 22 formed in the installation inner cavity 21 around the rotation center of the transmission handle 2 according to an arc track, and a push rod linkage part 23 which is exposed above the shell structure 1 and forms linkage fit with the breaker handle 91, wherein a spacing gap is formed between the two boss structures 22;

the driven part 3 is rotatably arranged in the mounting inner cavity 21 through a rotating shaft and comprises a gear structure 31 correspondingly connected between the two boss structures 22 and two driving cams 32 symmetrically arranged on the side surfaces of two sides of the gear structure 31, and the two boss structures 22 are respectively positioned on the motion tracks of the two driving bosses; the gear structure 31 is connected with the driving component 4, and drives the two driving bosses to rotate forward or backward under the driving of the driving component 4, so that the two boss structures 22 are driven by the two driving bosses synchronously to drive the transmission handle 2 to perform switching-on or switching-off actions.

In the above embodiment, when the electric opening and closing device performs the opening and closing operation, the gear structure 31 on the driven part 3 is driven by the driving component 4 to drive the two driving cams 32 to rotate synchronously, and the two driving cams 32 abut against the two boss structures 22 inside the transmission handle 2, so as to apply the driving force required for performing the opening and closing to the transmission handle 2, and the design has the advantages that two stress matching surfaces are formed by the two driving bosses abutting against the two boss structures 22 at two sides of the gear structure 31, the structural strength is increased, the torque effect can be borne more, the stress is more uniform and stable, the matching transmission is stable and reliable, the gear teeth part on the gear structure 31 is not in any contact with the transmission handle 2 to avoid the damage, the service life of the gear structure 31 is prolonged, and the transmission handle 2 forms the linkage matching with the breaker handle 91 through the push rod linkage part 23, thereby drive circuit breaker when transmission handle 2 execution is closed a floodgate or is opened a floodgate and realize reclosing operation, design like this both can avoid circuit breaker handle 91 to receive the impact of final stage gear again, and transmission stability is good, can also use with different model circuit breaker cooperations, makes electronic divide-shut brake device and the supporting use of circuit breaker more comprehensive, and the selectivity is more, and the commonality is good, reduces the cost of setting, promotes the performance and the market competitiveness of product.

As a preferred embodiment, push rod linkage portion 23 is long banding shaping and is in on the 2 top cambered surfaces of transmission handle to be equipped with the handle draw-in groove that suitable cover was established at circuit breaker handle 91, this kind of structure setting, push rod linkage portion 23 is as long as establish through the handle draw-in groove the circuit breaker handle 91 is last, thereby will push rod linkage portion 23 and circuit breaker handle 91 assemble together along the two length direction, and the equipment is comparatively convenient, increase area of contact, and installation stability is good, thereby makes transmission handle 2 forms the linkage cooperation with circuit breaker handle 91, and this kind of structural design's push rod linkage portion 23 can cooperate the handle of multiple model circuit breaker to use, can satisfy the installation use needs of electronic divide-shut brake device and most circuit breakers on the market, and application range is wide.

The specific arrangement of the drive handle and the driven member is described in detail below with reference to fig. 1-5:

a group of first grooves 221 and a group of second grooves 222 are respectively arranged at two ends of the two boss structures 22, and when the gear structure 31 is driven by the driving assembly 4 to rotate in the forward direction, the two driving bosses are driven to be abutted against and pushed to act on the first grooves 221 of the two boss structures 22, so that the transmission handle 2 is driven to perform a switching-on action; and when the gear structure 31 is driven by the driving component 4 to rotate reversely, the gear structure can drive the two driving bosses to push against the second grooves 222 of the two boss structures 22, so as to drive the transmission handle 2 to perform a switching-on action, the first grooves 221 and the second grooves 222 are designed between the boss structures 22 and the driving bosses to play a fixed-point connection role, stress points are concentrated, and the matching transmission is stable. In summary, the gear structure 31 is located at the switching-on position when the transmission handle 2 is completely switched on and at the switching-off position when the transmission handle 2 is completely switched off, in order to not limit the transmission handle 2 to rotate freely, after the transmission handle 2 is switched on or switched off, the gear structure 31 drives the driving cam 32 to rotate for a certain stroke away from the boss structure 22 under the driving of the driving assembly 4 and then reset to the initial position, that is, the gear structure 31 and the driving boss are no longer limited to abut against the transmission handle 2 which is switched on or switched off in place, so that the transmission handle 2 can move freely along with the breaker handle 91, and thus the manual switching-off and switching-on operation of the breaker can be realized. It should be noted that the forward rotation and the reverse rotation in this document refer to two opposite rotation directions of a certain component, and do not indicate an actual rotation direction thereof.

As a specific structural configuration, as shown in fig. 5, the driving cam 32 includes a circular shaft portion 321 provided with a shaft hole 33, and a boss portion connected to the circular shaft portion 321 and having an arc shape, two reinforcing ribs are respectively provided between the inner walls of two sides of the installation inner cavity 21 and the two boss structures 22, through the reinforcing ribs, the structural strength of the boss structure 22 can be enhanced, and the bearing pressure is higher, wherein the boss structure 22 is provided with a circular groove 223 located between the first groove 221 and the second groove 222, the circular shaft portion 321 is rotatably connected to the circular groove 223, two ends of the boss portion respectively abut against and push against the first groove 221 and the second groove 222 during the rotation process of the driving cam 32, so as to push the driving handle 2 to perform switching on or switching off rotation.

Referring to fig. 4-6, the driving handle 2 and the driven member 3 are coaxially and rotatably disposed, the gear structure 31, the driving cam 32 and the driving handle 2 are respectively and correspondingly provided with a shaft hole 33 for penetrating a rotating shaft, the rotating shaft is in linkage fit with the driven member 3 and can rotate relative to the driving handle 2, two hollow shaft levers 24 are formed on the side walls of the two sides of the driving handle 2 along the axial direction of the shaft hole 33, the shell structure 1 is provided with two positioning shafts 11 rotatably connected with the two hollow shaft levers 24, a rotating hole is formed in the positioning shaft 11, and two ends of the rotating shaft penetrate through the hollow shaft levers 24 and are rotatably connected to the two positioning shafts 11. According to the structure, the transmission handle 2 is rotatably connected to the shell structure 1 through the matching of the hollow shaft rod 24 and the positioning shaft 11, the driven part 3 is rotatably connected to the installation inner cavity 21 of the transmission handle 2 through the rotating shaft, namely, the gear structure 31 is not directly linked with the transmission handle 2 and can drive the transmission handle 2 to rotate only by being pushed against the boss structure 22 through the boss structure 22, and after the gear structure 31 is reset to the initial position, the transmission handle 2 can be freely switched on and off without being limited by the boss structure 22.

In this embodiment, a control circuit board 5 is further disposed in the housing structure 1 and is connected to the driving assembly 4 in a controlling manner, and a detection structure for detecting the working state information of the circuit breaker body 9 is disposed between the control circuit board 5 and the handle transmission structure.

As a preferred embodiment, referring to fig. 2-3 and 7, arc-shaped grooves 25 are respectively formed on the side walls of the two sides of the transmission handle 2 corresponding to the opening of the installation cavity 21; the detection structure comprises two trigger rods 61 which are arranged on the side wall of one side of the transmission handle 2 and close to the two ends of the arc-shaped groove 25, and two first trigger switches 51 which are arranged on the control circuit board 5 and are respectively positioned on the motion paths of the two trigger rods 61, wherein the two trigger rods 61 drive the two first trigger switches 51 to be alternately opened or closed when the transmission handle 2 completes switching on or switching off. In the structural arrangement, the two trigger rods 61 rotate along with the transmission handle 2, and when the transmission handle 2 completes the closing operation, one trigger rod 61 drives one first trigger switch 51 to be opened, so that the first trigger switch 51 sends a signal indicating the closing of the circuit breaker; when the transmission handle 2 completes the opening operation, the trigger rod 61 drives the other trigger switch 51 to be opened, so that the first trigger switch 51 sends a signal indicating the opening of the circuit breaker, the opening and closing work information of the circuit breaker can be accurately known, and the safe use of the circuit breaker is ensured.

Although the above-mentioned preferred detection mode of the first trigger switch 51 is a mechanical type, obviously, an electronic type position sensing switch 53 detection mode may also be adopted, specifically referring to fig. 7, the detection structure includes two detected pieces 7 disposed on a side wall of the transmission handle 2, and a position sensing switch 53 correspondingly disposed on the control circuit board 5, the position sensing switch 53 detects and triggers to open the two detected pieces 7 when the transmission handle 2 completes closing or opening, and its operation mode is: the transmission handle 2 drives the two tested pieces 7 to pass through the position sensing switch 53 respectively when switching on or switching off, the position sensing switch 53 sends a signal related to switching on or switching off of the breaker when detecting the two tested pieces 7 respectively, the position sensing switch 53 can be a Hall switch, and the two tested pieces 7 are permanent magnets; or the position sensing switch 53 can be a photoelectric sensing switch, and the two tested pieces 7 are emitters capable of sending photoelectric signals, so that the opening and closing state information of the circuit breaker can be obtained.

In order to detect whether the gear structure 31 and the driving boss are reset to the initial position, referring to fig. 7, the detecting structure further includes a cylindrical structure 62 disposed on one of the driving cams 32 facing the control circuit board 5, a protruding block 63 formed on the top edge of the cylindrical structure 62, and a second trigger switch 52 disposed on the control circuit board 5, the cylindrical structure 62 reciprocates along the arc-shaped slot 25, when the gear structure 31 rotates to the initial position, the protruding block 63 is driven to drive the second trigger switch 52 to open, so that the second trigger switch 52 generates a signal indicating that the gear structure 31 is reset, and then the operator can know that the breaker handle 91 is in a free state, and can perform a manual opening and closing operation.

As an alternative embodiment, the detection structure further includes a detected piece 7 disposed in the concave hole at the top of the cylindrical structure 62, and a position sensing switch 53 correspondingly disposed on the control circuit board 5, where the position sensing switch 53 detects the detected piece 7 on the cylindrical structure 62 and triggers to turn on when the gear structure 31 rotates to the initial position, although a mechanical second trigger switch 52 detection mode is adopted in the above technical solution, an electronic position sensing switch 53 detection mode may also be correspondingly adopted, and the position sensing switch 53 may be a hall switch or a photoelectric sensing switch, and may also detect the reset condition of the gear structure 31.

As shown in fig. 6, an accommodating section 12 adapted to accommodate the driving assembly 4 and a cover plate member fastened to the accommodating section 12 to cover the driving assembly 4 are disposed in the housing structure 1, and the accommodating section 12 is communicated with a handle section where the handle transmission structure is located; drive assembly 4 is including setting up motor 41 in the holding interval 12, and the linkage sets up the worm 42 on the output shaft of motor 41 to and the meshing is connected at least one drive gear 43 between worm 42 and the gear structure 31, gear structure 31 is incomplete gear, and it has the suitable connection and is in the round wheel part in the interval space, and the cooperation through drive gear 43 and gear structure 31 transmits the moment of torsion that motor 41 exported for drive handle 2, drive handle 2 drives circuit breaker handle 91 synchronous rotation at divide-shut brake rotation process to realize the divide-shut brake operation of circuit breaker.

Referring to fig. 2-3, an arc-shaped trip hole 13 is formed between the housing structure 1 and the breaker body 9, a trip shaft is arranged in the breaker body 9 corresponding to the trip hole 13, that is, the breaker keeps a closing state when the trip shaft is located at a closing position and keeps an opening state when the trip shaft is located at an opening position, and in order to realize safe tripping of the breaker and ensure safety of line maintenance work, a trip structure 8 for driving the trip shaft to trip is arranged on the housing structure 1.

As a specific structural arrangement, the trip structure 8 includes a driving block 81, a rotating push rod 82 and a spring structure (the spring structure is not shown in the drawing), wherein the driving block 81 is slidably disposed in the housing structure 1, one end of the driving block 81 is driven by an external force to move upward and extend out of the top of the housing structure 1, and one end of the driving block 81 is locked outside the top of the housing structure 1 by a locking assembly, and the top of the housing structure 1 is provided with an open slot adapted to accommodate one end of the driving block 81; the rotating push rod 82 is rotatably arranged in the shell structure 1, is connected with the driving block 81, and is provided with a deflector rod structure which penetrates into the tripping hole and is matched with the tripping shaft, when the driving block 81 moves towards the outside of the shell structure 1, the rotating push rod 82 is pushed to rotate, and the rotating push rod 82 drives the tripping shaft through the deflector rod structure to realize tripping action; the spring structure is arranged between the shell structure 1 and the driving block 81 along the moving direction of the driving block 81, and applies elastic force to the driving block 81 to move back and down in the shell structure 1; the locking assembly comprises a locking hole formed in one end of the driving block 81 and a padlock piece arranged in the locking hole in a penetrating mode, and one end of the driving block is limited to be reset into the shell through the padlock piece.

By the structure, when the breaker is required to be locked at the opening position, one end of the driving block 81 is pulled out of an opening slot at the top of the shell by hand, the driving block 81 pushes the rotary push rod 82 to rotate for a certain angle in the upward moving process, so that the rotary push rod 82 triggers the trip shaft to trip through the deflector rod structure in the rotating process, the trip and the opening of the breaker are realized, then the locking end extending out of the opening slot is locked through the locking assembly, the driving block 81 is prevented from resetting and moving towards the shell structure 1, the trip shaft is enabled to be always positioned at the trip position under the limiting action of the deflector rod structure, the breaker is kept in a locked opening state, the manual misoperation of the breaker can be prevented, the remote switching-on of a reclosing device under the unknown condition can be prevented, and the safe operation of line maintenance work can be ensured by preventing the accident of the breaker, the structure is simple in design and reliable in locking, safe tripping and opening of the circuit breaker are achieved, the risk of electric shock caused by mistaken closing is prevented, and the safety and the reliability of product use are improved.

In order to reliably realize the transmission fit between the driving block 81 and the rotary push rod 82, the driving block 81 includes a driving bevel 811 disposed at one side thereof, and an arc-shaped positioning groove 812 connected to an upper end of the driving bevel 811, the rotary push rod 82 has a round rod portion 821 slidably connected between the driving bevel 811 and the arc-shaped positioning groove 812, the rotating push rod 82 is in a hook shape, the round rod part 821 and the deflector rod structure are respectively arranged at two ends of the rotating push rod 82, so that the round rod part 821 and the lever structure rotate together with the rotary push rod 82, therefore, when the driving block 81 moves upward, the round rod portion 821 is pushed by the driving slant 811, the rotating push rod 82 is driven to drive the deflector rod structure to rotate, and the deflector rod structure triggers the tripping shaft to trip in the rotating process, so that tripping and brake opening of the circuit breaker are realized; when the driving block 81 is reset under the action of the spring structure, the rotating push rod 82 does not receive the pushing action of the driving block 81, namely, the driving lever structure does not continue to apply force to the trip shaft, the rotating push rod can be provided with a reset torsion spring for automatic reset, and can also be reset under the pushing action of the trip shaft.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.