CN107742600B - Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker - Google Patents
Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker Download PDFInfo
- Publication number
- CN107742600B CN107742600B CN201711165226.7A CN201711165226A CN107742600B CN 107742600 B CN107742600 B CN 107742600B CN 201711165226 A CN201711165226 A CN 201711165226A CN 107742600 B CN107742600 B CN 107742600B
- Authority
- CN
- China
- Prior art keywords
- driving
- circuit breaker
- rod
- rotating shaft
- operation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/521—Details concerning the lever handle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an automatic opening and closing operation device of a circuit breaker and the circuit breaker thereof, comprising a fixed seat and a driving rod, wherein the fixed seat is arranged in a shell of the circuit breaker; the driving rod is rotatably arranged on the mounting rod through a rotating shaft, the rotating shaft is parallel to the rotating axis of the operating handle, one end of the driving rod, relative to the rotating shaft, is a handle end connected with the operating handle, and the other end of the driving rod is a driving end connected with the driving assembly; the driving assembly drives the driving rod to rotate around the rotating shaft so as to operate the operating handle. The opening and closing operation device is integrally installed in the shell of the circuit breaker, has a compact structure and a small size, reduces the occupied installation space of the circuit breaker, does not need to increase the covering height of the upper cover of the circuit breaker, saves materials and cost, has short movement stroke and small transmission torque, and improves the service life of the operation handle and the service performance of a product.
Description
Technical Field
The invention relates to the technical field of low-voltage electric appliances, in particular to an automatic opening and closing operation device of a circuit breaker and the circuit breaker.
Background
The plastic shell type circuit breaker is usually adopted as a terminal switch or a branch switch in a low-voltage distribution system, plays a role in real-time protection on a power supply circuit and mechanical equipment, and can automatically cut off a circuit when the circuit and the equipment are overloaded or short-circuited and have undervoltage faults. At present, a driven plastic shell type circuit breaker can only be manually switched on, namely, a handle of the manual switching-on circuit breaker is used, and if electric arcs exist in the circuit breaker or flashover exists, the operation safety of technical personnel can be threatened. Therefore, the plastic shell type circuit breaker is provided with the electric operating device, so that the automatic opening and closing function of the plastic shell type circuit breaker is realized, the operation is flexible, the use is convenient, and the safety and the reliability are realized.
The electric transmission device of the existing circuit breaker mainly comprises a motor, a linkage mechanism and a transmission rod, wherein the linkage mechanism generally adopts a gear transmission structure or crank transmission structure mode, the linkage mechanism and a circuit breaker handle are connected in the horizontal direction through the transmission rod, force and motion transmission is realized, when the motor drives the linkage mechanism to rotate, the transmission rod and the circuit breaker handle are further driven to execute automatic opening and closing operation of the circuit breaker, but the electric transmission device needs to be installed on the upper part of a circuit breaker shell to realize transmission matching, the transmission structure is complex, the occupied space is large, and the size is correspondingly increased.
For example, chinese patent document CN205609461U discloses a transmission device for a circuit breaker, which includes a motor, a transmission mechanism driven by the motor, and a transmission link connecting the transmission mechanism and a circuit breaker handle, wherein the transmission mechanism is a gear mechanism including a mechanism housing having a central cavity, a driving gear, a limit stop, a spring, and a groove in the mechanism housing, the driving gear is a ratchet linked with a motor shaft, the limit stop abuts against a tooth slot of the driving gear under the action of the spring, one end of the transmission link is linked with the mechanism housing, and when the motor drives the driving gear to rotate, the driving gear is matched with a push rod through the driving gear to drive the mechanism housing to rotate, so as to drive the circuit breaker handle to open and close through the transmission linkage. As can be seen from the transmission process of the transmission mechanism, the following problems exist:
firstly, the motion plane of the operating mechanism is vertical to the motion plane of the handle of the circuit breaker, and the swing amplitude is large in the motion process of the transmission connecting rod, so that the space is occupied; secondly, the direction of the acting force of the transmission connecting rod on the handle of the circuit breaker is constantly changed in the moving process, rather than only along the moving direction of the handle, so that the service life of the handle is influenced; and the operating mechanism is arranged on the upper part of the shell of the circuit breaker, occupies the enlarged installation space of the circuit breaker, influences the configuration of the internal structure of the circuit breaker, often needs to increase the height of a cover box of the circuit breaker to cover the transmission device, and leads to the increase of the complexity of the structure of the circuit breaker and the manufacturing cost.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the problems that the swing amplitude of the operating mechanism in the prior art is large and occupies a large space in the movement process of the transmission connecting rod, the service life of a handle is influenced, the operating mechanism occupies an installation space of a circuit breaker, and the manufacturing cost is increased.
In order to solve the technical defects, the invention provides an automatic opening and closing operation device of a circuit breaker, which comprises:
the fixed seat is arranged in the shell of the circuit breaker, and one side of the fixed seat corresponding to the rotating plane of the operating handle is provided with an installation rod;
the driving rod is rotatably arranged on the mounting rod through a rotating shaft, the rotating shaft is parallel to the rotating axis of the operating handle, one end of the driving rod, relative to the rotating shaft, is a handle end connected with the handle, and the other end of the driving rod is a driving end connected with a driving assembly; the driving assembly drives the driving rod to rotate around the rotating shaft so as to operate the operating handle.
As a preferable scheme, the driving assembly includes a driving motor and a driving structure disposed on the fixing base and engaged with the driving end, and the driving structure drives the driving rod to rotate around the rotating shaft under the driving of the driving motor.
As a preferable scheme, the driving structure is a moving structure which makes reciprocating linear motion along a straight line projected on the fixed seat by the rotating plane of the driving rod; the driving rod and the driving structure are provided with a driving protrusion in linkage fit and a driving sliding groove which is matched with the driving protrusion and has a set length.
As a preferable scheme, the driving structure includes a sliding part slidably disposed on the fixing base along a direction of the reciprocating linear motion, the sliding part is provided with the driving protrusion facing the driving rod, and the driving sliding groove is a groove structure disposed on the driving rod and having a set length along an extending direction of the driving rod.
As a preferable scheme, the output shaft of the driving motor is provided with a driving gear, and the sliding part is provided with a rack structure matched with the driving gear along the reciprocating linear motion direction; the driving motor drives the sliding piece to slide along the movement direction through the matching of the driving gear and the rack structure.
As a preferable scheme, the sliding part is of an L-shaped bent plate structure, one end of the L-shaped bent plate structure is of a plate-shaped structure matched with the fixed seat, a sliding groove extending along the direction of the reciprocating linear motion is arranged on the L-shaped bent plate structure, and the side surface of the other end of the L-shaped bent plate structure is provided with the rack structure; the fixing seat is provided with a mounting column extending into the sliding groove.
As a preferable scheme, the rack structure is a concave hole structure which is arranged on the sliding part and matched with the driving gear.
Preferably, a threaded lead screw extending along the reciprocating linear motion is arranged on the output shaft of the driving motor, and the sliding part is arranged on the threaded lead screw.
As a preferred scheme, the drive structure is a rotating disc with a central axis parallel to the rotating shaft and driven by the drive motor to rotate around the shaft, a drive protrusion is arranged on the rotating disc towards the drive rod, and a drive sliding groove with a set length is arranged on the drive rod along the drive protrusion.
Preferably, the fixing seat comprises a matching plate, an extension plane of the matching plate is perpendicular to a rotation plane of the operating handle, and the mounting rod is vertically arranged on the matching plate.
Preferably, the driving rod includes a rotation hole engaged with the rotation shaft, and the rotation hole has a long hole structure with a set length along an extending direction of the driving rod.
As a preferred scheme, the actuating lever includes along the first pole portion that the installation pole extends staggers first pole portion laminating operating handle extends the second pole portion that sets up, and, connects first pole portion with the connecting rod portion of second pole portion.
As a preferable scheme, a distance between the matching position of the operating handle and the driving rod and a projection of the rotating shaft on the rotating plane of the operating handle is a, a distance between the matching position of the driving assembly and the driving rod and a projection of the rotating shaft on the rotating plane of the operating handle is B, and a is smaller than B.
The invention also comprises a circuit breaker, which comprises the automatic opening and closing operation device of the circuit breaker.
The technical scheme of the invention has the following advantages:
1. in the automatic switching-on and switching-off operation device of the circuit breaker, the driving rod is rotatably mounted on the mounting rod through the rotating shaft, the rotating shaft is parallel to the rotating axis of the operation handle, physical leverage is formed between the driving rod and the rotating shaft, and the rotating direction of the driving rod around the rotating shaft is the same as that of the operation handle, so that the driving end of the driving rod is driven to rotate through the driving assembly, the handle end of the driving rod drives the operation handle to perform switching-on and switching-off operation, the moving directions are consistent, and the acting force directions are concentrated, so that the problem that the acting force direction of a transmission connecting rod on the circuit breaker handle in the prior art is continuously changed in the moving process is solved; in addition, in this technical scheme, the installation pole is located one side of operating handle rotation plane, and it can be known for an overview that the motion plane of actuating lever is parallel arrangement with operating handle's rotation plane for the swing range that the actuating lever drove handle divide-shut brake motion is little, and occupation space is little, and transmission efficiency is high. The opening and closing operation device is integrally installed in the shell of the circuit breaker, has a compact structure and a small volume, reduces the occupied installation space of the circuit breaker, does not need to increase the covering height of the upper cover of the circuit breaker, saves materials and cost, has short movement stroke, is reliable in matching transmission, and improves the service life of the operation handle and the service performance of a product.
2. In the automatic switching-on and switching-off operation device of the circuit breaker, the driving structure is a motion structure which makes reciprocating linear motion along a straight line projected on the fixed seat by the rotation plane of the driving rod, and the driving structure and the driving rod are in linkage fit by matching the driving sliding groove and the driving protrusion to transmit and change force and motion, so that the linear motion of the driving structure is converted into physical lever motion between the driving rod and the rotating shaft, and finally the physical lever motion acts on the operation handle to realize switching-on and switching-off actions.
3. In the automatic switching-on and switching-off operation device of the circuit breaker, the sliding part is provided with the driving protrusion facing the driving rod, the driving chute is of a groove structure which is arranged on the driving rod and has a set length along the extending direction of the driving rod, the set length is suitable for the requirement of the rotational displacement between the driving protrusion and the driving chute, and the driving protrusion is embedded into the driving chute to enable the sliding part and the driving rod to form an integrated linkage effect, so that when the sliding part makes a reciprocating linear motion on the fixed seat, the driving protrusion and the driving chute are matched to drive the driving rod to rotate for a certain angle around the rotating shaft, and the effect of transmission matching is realized.
4. In the automatic switching-on and switching-off operation device of the circuit breaker, the output shaft of the driving motor is provided with the driving gear, the sliding part is provided with the rack structure matched with the driving gear along the reciprocating linear motion direction, the driving gear is driven to move in the same direction when the driving motor rotates forwards or reversely, the sliding part is driven to slide along the motion direction through the matching of the driving gear and the rack structure, the change of the motion direction is realized, and then the sliding part drives the driving rod to rotate around the shaft and drives the operation handle to execute the switching-on and switching-off operation.
5. In the automatic opening and closing operation device of the circuit breaker, the sliding groove extending along the reciprocating linear motion direction is arranged on the sliding piece, the reciprocating linear motion direction is the length direction of the plate-shaped structure of the sliding piece, the sliding piece is fixedly penetrated into the strip-shaped guide groove through the mounting column, the positioning and guiding effects on the motion of the sliding piece are achieved, the design is reasonable, the matching is reliable, the sliding piece is driven to reciprocate along the reciprocating linear motion direction, the position deviation is avoided, and the accuracy of the motion direction of the driven part is ensured.
6. In the automatic opening and closing operation device of the circuit breaker, the transmission distances from the two ends of the driving rod respectively connected with the operation handle and the driving component to the rotating shaft are respectively A and B, wherein A is smaller than B, namely the distance from the driving end of the driving rod serving as a stress point to the rotating shaft is larger than the distance from the end of the handle serving as a resistance point to the rotating shaft, so that a labor-saving lever is realized.
7. The circuit breaker provided by the invention is provided with the automatic opening and closing operation device, so that the circuit breaker naturally has all advantages brought by the automatic opening and closing operation device, the remote automatic opening and closing control function of the circuit breaker can be realized through the automatic opening and closing operation device, and the intelligent control requirement is met.
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 view of an installation structure of an automatic opening and closing operation device and a circuit breaker of the invention;
FIG. 2 is a schematic structural diagram of the automatic opening and closing operation device of the present invention;
fig. 3 is a schematic structural diagram of the automatic opening and closing operation device of the present invention after a driving motor is hidden;
fig. 4 is a structural schematic diagram of the automatic opening and closing operation device shown in fig. 3 in another direction;
FIG. 5 is a schematic view of the mounting structure of the driving rod and the operating handle of the present invention;
fig. 6 is a schematic structural view of the driving rod of the present invention.
Description of reference numerals: 1-a fixed seat, 11-a mounting rod, 12-a matching plate, 2-a breaker shell, 21-an operating handle, 3-a driving motor, 4-a driving gear, 5-a sliding part, 51-a rack structure, 52-a sliding groove, 53-a driving bulge, 54-a mounting column, 6-a driving rod, 61-a first rod part, 611-a handle end, 62-a second rod part, 621-a driving end, 63-a driving sliding groove, 64-a rotating hole, 65-a connecting rod part and 7-a rotating shaft.
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.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment is described in detail below with reference to the accompanying drawings:
the present embodiment provides an automatic opening and closing operation device for a circuit breaker as shown in fig. 1 to 6, including:
the fixed seat 1 is arranged in the breaker shell 2, and an installation rod 11 is arranged on one side corresponding to the rotating plane of the operating handle 21;
the driving rod 6 is rotatably mounted on the mounting rod 11 through a rotating shaft 7, the rotating shaft 7 is parallel to the rotating axis of the operating handle 21, one end of the driving rod 6, relative to the rotating shaft 7, is a handle end 611 connected with the operating handle, and the other end is a driving end 611 connected with a driving assembly; the driving assembly drives the driving rod 6 to rotate around the rotating shaft 7 to operate the operating handle 21.
In the above embodiment, the driving rod 6 is rotatably mounted on the mounting rod 11 through the rotating shaft 7, the rotating shaft 7 is parallel to the rotating axis of the operating handle 21, and this structure is arranged, a physical leverage is formed between the driving rod 6 and the rotating shaft 7, and the rotating direction of the driving rod 6 around the rotating shaft is the same as the rotating direction of the operating handle 21, so that the driving end of the driving rod is driven to rotate by the driving assembly, so that the handle end of the driving rod 6 drives the operating handle to perform the opening and closing operations, the moving directions are consistent, and the acting force directions are concentrated, so as to overcome the problem that the acting force direction of the transmission connecting rod on the breaker handle in the prior art is constantly changed in the moving process; in addition, in this technical scheme, the installation rod 11 is located on one side of the rotation plane of the operating handle, and it can be known in summary that the motion plane of the driving rod 6 and the rotation plane of the operating handle 21 are arranged in parallel, so that the driving rod 6 drives the handle to open and close the brake, and the swing range is small, the occupied space is small, and the transmission efficiency is high. The opening and closing operation device is integrally installed in the shell of the circuit breaker, has a compact structure and a small volume, reduces the occupied installation space of the circuit breaker, does not need to increase the covering height of the upper cover of the circuit breaker, saves materials and cost, has short movement stroke, is reliable in matching transmission, and improves the service life of the operation handle and the service performance of a product.
According to the above embodiment, it is further preferable that the driving assembly includes a driving motor 3 and a driving structure disposed on the fixed seat 1 and engaged with the driving end 611, and the driving structure drives the driving rod 6 to rotate around the rotating shaft under the driving of the driving motor 3, wherein the driving structure is used for effectively transmitting the driving force of the driving motor to the driving rod, so that the driving rod and the operating handle are in transmission connection in the vertical direction. It can be known to combine fig. 1 and fig. 2, drive structure and the cooperation of driving motor 3 fixing base 1 is together installed in the circuit breaker casing, driving motor 3's output shaft sets up perpendicularly downwards, and its upper bottom surface is parallel and level with the surface of circuit breaker casing 1, and reasonable in design does not influence the normal work of circuit breaker inner structure, avoids like installing drive mechanism's the mode that sets up on circuit breaker casing upper portion among the prior art, and whole installation space is less relatively, and transmission distance is short, and is efficient, therefore need not to close the installation demand that highly satisfies drive mechanism through the lid that increases the circuit breaker, reduces design cost.
Further preferably, the driving structure is a moving structure which makes reciprocating linear motion along a straight line projected on the fixed seat 1 by the rotating plane of the driving rod 6; the driving rod 6 and the driving structure are provided with a driving lug 53 in linkage fit and a driving sliding chute 63 with set length matched with the driving lug 53. Realize drive structure and actuating lever through the cooperation of drive spout 63 and drive arch 53 and realize the linkage cooperation to transmission and change power and motion, thereby convert the linear motion of drive structure into actuating lever 6 with the physical lever motion between the axis of rotation 7 acts on at last realize the divide-shut brake action on the operating handle 21, reasonable in design, transmission distance is short, and is efficient, and the cooperation transmission is reliable.
The specific structure of the driving structure is described in detail below with reference to fig. 2-4:
the driving structure comprises a sliding part 5 slidably arranged on the fixed seat 1 along the reciprocating linear motion direction, the sliding part 5 is provided with a driving protrusion 53 facing the driving rod 6, and the driving sliding groove 63 is a groove structure arranged on the driving rod 6 and having a set length along the extending direction of the driving rod 6. The driving protrusion 53 is provided with a fixing shaft which is matched and arranged in the driving sliding groove, the fixing shaft and the driving protrusion are fixedly connected or integrally formed, the driving protrusion 53 is embedded into the driving sliding groove 63 to enable the sliding part 5 and the driving rod 6 to form an integrated linkage effect, and the set length of the driving sliding groove is suitable for the requirement of rotational displacement between the driving protrusion and the driving sliding groove, so that when the sliding part 6 makes reciprocating linear motion on the fixed seat 1, the driving protrusion 53 and the driving sliding groove 63 are matched to drive the driving rod 6 to rotate for a certain angle around the rotating shaft 7, and the effect of transmission matching is achieved.
Further preferably, the output shaft of the driving motor 3 is provided with a driving gear 4, and the sliding part 5 is provided with a rack structure 51 matched with the driving gear 4 along the reciprocating linear motion direction; the driving motor 3 drives the sliding piece 5 to slide along the movement direction through the matching of the driving gear 4 and the rack structure 51. In this embodiment, the driving motor 3 drives the driving gear to move in the same direction when rotating in the forward direction or the reverse direction, the driving gear 4 and the rack structure 51 cooperate to drive the sliding part 5 to slide along the linear motion direction, so as to change the motion direction, and further the sliding part 5 drives the driving rod 6 to rotate around the rotating shaft 7 and drive the operating handle 21 to perform the opening and closing operation.
As a specific arrangement, as shown in fig. 3-4, the sliding member 5 is an L-shaped bent plate structure, one end of the L-shaped bent plate structure is a plate-shaped structure matched with the fixed seat, a sliding groove 52 extending along the direction of the reciprocating linear motion is arranged on the L-shaped bent plate structure, and the rack structure 51 is arranged on the side surface of the other end of the L-shaped bent plate structure; the fixing seat 1 is provided with an installation column 54 extending into the sliding groove 52, and further, the rack structure 51 is a concave hole structure which is arranged on the sliding part 5 and matched with the driving gear 4. In the above arrangement, the sliding groove 52 extending along the reciprocating linear motion direction is arranged on the sliding member 5, and the reciprocating linear motion direction is the length direction of the plate-shaped structure of the sliding member 5, and the mounting column 54 is fixedly penetrated into the sliding groove 52, so that the positioning and guiding effects on the motion of the sliding member 5 are achieved.
As an alternative embodiment, a threaded lead screw extending along the reciprocating linear motion is arranged on the output shaft of the driving motor 3, and the sliding part is arranged on the threaded lead screw, so that the sliding part 5 is driven by the threaded lead screw to slide back and forth along the reciprocating linear motion direction, so as to replace the matching mode of the driving gear 4 and the rack structure 51, and the structure is simple and the matching transmission is reliable. A person skilled in the art can select a specific driving manner of the sliding member according to the above description, and descriptions of other equivalent embodiments are omitted here.
Although the present embodiment shows the specific structure and movement direction of the sliding member 5 as the preferred solution of the driving structure for driving the driving rod 6 to rotate around the rotating shaft, it is obvious that the combination of the driving structure and the driving rod can be replaced by other ways, for example, the driving structure is preferably a rotating disc with a central axis parallel to the rotating shaft 7 and rotating around the shaft under the driving of the driving motor 3, and the rotating disc and the motor rotating shaft are coaxially arranged by properly adjusting the installation position between the driving motor and the rotating disc; meanwhile, the rotating disc is provided with a driving bulge towards the driving rod, the driving rod is provided with a driving sliding groove matched with the driving bulge and provided with a set length along the driving rod 6, and linkage matching of the rotating disc and the driving rod is achieved. A person skilled in the art can select a specific arrangement manner of the driving structure according to the above description, and further description of other equivalent embodiments of the driving structure is omitted here.
As shown in fig. 4, the fixing base 1 includes a matching board 12, the matching board extends the plane perpendicular to the rotation plane of the operating handle, the mounting rod 11 is vertically disposed on the matching board, so that the driving rod 6 extends out of the breaker housing in the vertical direction according to the setting mode of the mounting rod, and the handle end of the driving rod 6 and the operating handle are linked through the pin shaft assembly. In addition, the two sides of the matching plate 12 are provided with mounting feet for fixing and supporting the fixing seat, so that the mounting is convenient and the fixing is reliable.
The specific structure of the driving rod of the present embodiment will be described in detail with reference to fig. 4 to 6:
the driving rod 6 comprises a first rod part 61 extending along the mounting rod 11, the first rod part is staggered to be attached to a second rod part 62 extending from the operating handle, the first rod part 61 and a connecting rod part 65 of the second rod part 62 are connected, the driving end 611 is located at one end of the first rod part 61, the handle end 611 is located at one end of the second rod part, the driving end is driven to move through a sliding piece, the driving rod is further made to wind the rotating shaft on the mounting rod by a certain angle, and the handle end 612 on the second rod part is synchronously made to drive the operating handle to perform opening and closing operations.
In this embodiment, a distance between the matching position of the operating handle 21 and the driving rod 6 and a projection of the rotating shaft 7 on the rotating plane of the operating handle 21 is a, a distance between the matching position of the driving assembly and the driving rod 6 and a projection of the rotating shaft 7 on the rotating plane of the operating handle 21 is B, and a is smaller than B. According to the structure, the driving distances from the two ends of the driving rod 6, which are respectively connected with the operating handle and the driving component, to the rotating shaft 7 are respectively A and B, wherein A is smaller than B, namely, the distance from the driving end 611 of the driving rod 6 serving as a stress point to the rotating shaft is larger than the distance from the end 621 of the handle serving as a resistance point to the rotating shaft, so that a labor-saving lever is realized, the relatively smaller motor driving force is applied to the driving end, the operating force required by opening and closing of the operating handle 21 can be achieved under the action of the lever, the labor is saved during force transmission, the bearing load of the driving motor is reduced, the structure is simple, and the matching transmission is reliable.
The automatic divide-shut brake operating means that this embodiment provided has that transmission torque is little, and the motion stroke is short, and transmission efficiency is high, and occupation space is little advantage, but the integrated installation in the circuit breaker casing simultaneously, and is small, simple to operate, low in manufacturing cost has fine practicality.
Example 2
The present embodiment provides a circuit breaker, as shown in fig. 1, including the automatic switching on/off operation device described in embodiment 1, and an operation handle driven by the automatic switching on/off operation device, so that the circuit breaker naturally has all the advantages brought by the provision of the automatic switching on/off operation device, and a remote automatic switching on/off control function of the circuit breaker can be realized by the automatic switching on/off operation device, thereby satisfying the intelligent control requirement.
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.
Claims (11)
1. The utility model provides an automatic divide-shut brake operating means of circuit breaker which characterized in that: the method comprises the following steps:
the fixed seat (1) is arranged in the breaker shell (2), and an installation rod (11) is arranged on one side of the rotating plane corresponding to the operating handle (21);
the driving rod (6) is rotatably mounted on the mounting rod (11) through a rotating shaft (7), the rotating shaft (7) is parallel to the rotating axis of the operating handle (21), one end, relative to the rotating shaft (7), of the driving rod (6) is a handle end (611) connected with the operating handle, and the other end of the driving rod is a driving end (621) connected with a driving assembly; the driving component drives the driving rod (6) to rotate around the rotating shaft (7) so as to operate the operating handle (21);
the driving assembly comprises a driving motor (3) and a driving structure which is arranged on the fixed seat (1) and matched with the driving end (621), and the driving structure drives the driving rod (6) to rotate around the rotating shaft under the driving of the driving motor (3);
the driving structure is a motion structure which makes reciprocating linear motion along a straight line projected on the fixed seat (1) by the rotating plane of the driving rod (6); the driving rod (6) and the driving structure are provided with a driving bulge (53) in linkage fit and a driving sliding groove (63) which is matched with the driving bulge and has a set length.
2. The automatic opening and closing operation device of a circuit breaker according to claim 1, characterized in that: the drive structure include along reciprocating linear motion direction slidable set up in slider (5) of fixing base (1), slider (5) are provided with the orientation actuating lever (6) drive arch (53), drive spout (63) are for set up in actuating lever (6) and follow actuating lever (6) extending direction has the groove structure of setting for length.
3. The automatic opening and closing operation device of a circuit breaker according to claim 2, characterized in that: a driving gear (4) is arranged on an output shaft of the driving motor (3), and a rack structure (51) matched with the driving gear (4) is arranged on the sliding piece (5) along the reciprocating linear motion direction; the driving motor (3) drives the sliding piece (5) to slide along the movement direction through the matching of the driving gear (4) and the rack structure (51).
4. The automatic opening and closing operation device of a circuit breaker according to claim 3, wherein: the sliding part (5) is of an L-shaped bent plate structure, one end of the L-shaped bent plate structure is of a plate-shaped structure matched with the fixed seat, a sliding groove (52) extending along the reciprocating linear motion direction is formed in the L-shaped bent plate structure, and the side face of the other end of the L-shaped bent plate structure is provided with the rack structure (51); and the fixed seat (1) is provided with a mounting column (54) extending into the sliding groove (52).
5. The automatic opening and closing operation device of a circuit breaker according to claim 3, wherein: the rack structure (51) is a concave hole structure which is arranged on the sliding part (5) and matched with the driving gear (4).
6. The automatic opening and closing operation device of a circuit breaker according to claim 2, characterized in that: and a threaded lead screw extending along the reciprocating linear motion is arranged on an output shaft of the driving motor (3), and the sliding part is arranged on the threaded lead screw.
7. The automatic opening and closing operation device of a circuit breaker according to any one of claims 1 to 6, wherein: fixing base (1) includes cooperation board (12), cooperation board extension plane perpendicular to operating handle's rotation plane, installation pole (11) set up perpendicularly in the cooperation board.
8. The automatic opening and closing operation device of a circuit breaker according to claim 7, wherein: the driving rod (6) comprises a rotating hole (64) matched with the rotating shaft (7), and the rotating hole (64) is of a long hole structure with a set length along the extending direction of the driving rod (6).
9. The automatic switching-on and switching-off operation device of the circuit breaker according to claim 8, wherein the driving rod (6) comprises a first rod part (61) extending along the mounting rod (11), a second rod part (62) extending along the operating handle in a manner of staggering the first rod part and attaching the first rod part, and a connecting rod part (65) connecting the first rod part (61) and the second rod part (62).
10. The automatic switching-on/off operation device of the circuit breaker according to claim 9, wherein a distance between a matching position of the operating handle (21) and the driving rod (6) and a projection of the rotating shaft (7) on a rotating plane of the operating handle (21) is A, a distance between a matching position of the driving component and the driving rod (6) and a projection of the rotating shaft (7) on the rotating plane of the operating handle (21) is B, and A is smaller than B.
11. A circuit breaker comprising the automatic opening and closing operation device of the circuit breaker according to any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010425030.2A CN111524759B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
| CN201711165226.7A CN107742600B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711165226.7A CN107742600B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010425030.2A Division CN111524759B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107742600A CN107742600A (en) | 2018-02-27 |
| CN107742600B true CN107742600B (en) | 2020-08-28 |
Family
ID=61238914
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711165226.7A Active CN107742600B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
| CN202010425030.2A Active CN111524759B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010425030.2A Active CN111524759B (en) | 2017-11-21 | 2017-11-21 | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107742600B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444688B (en) * | 2018-05-08 | 2023-11-28 | 河南森源电气股份有限公司 | Circuit breaker and sensor fixing device for circuit breaker |
| CN108717922A (en) * | 2018-07-24 | 2018-10-30 | 德力西电气有限公司 | A kind of operating mechanism of autoreclose breaker |
| CN110223890B (en) * | 2019-06-20 | 2024-02-13 | 山东大学 | Remote switching-on/off device for row of circuit breakers and working method |
| CN114446705B (en) * | 2022-02-16 | 2023-08-11 | 广东电网有限责任公司 | Synchronous circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5428196A (en) * | 1994-03-01 | 1995-06-27 | Eaton Corporation | Flexible shaft interface for circuit interrupter |
| CN1312571A (en) * | 2000-03-06 | 2001-09-12 | 富士电机株式会社 | Circuit breaker |
| CN104637742A (en) * | 2013-11-11 | 2015-05-20 | Ls产电株式会社 | Handle operating device for circuit breaker |
| CN207381349U (en) * | 2017-11-21 | 2018-05-18 | 乾友科技有限公司 | A kind of automatic breaking-closing operating device of breaker and its breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085622A (en) * | 1973-12-04 | 1978-04-25 | I-T-E Imperial Corporation | Electrical operator for circuit breakers |
| US6522227B1 (en) * | 2001-09-24 | 2003-02-18 | General Electric Company | Remote operated circuit breaker panel |
| DE20312904U1 (en) * | 2003-08-21 | 2003-11-20 | Abb Patent Gmbh | Low-voltage switch mechanism for protecting electric motor has rotary button in flat plate, with pin turning in slot in lever which tilts on pivot and moves switching member |
| CN102386030B (en) * | 2011-10-28 | 2015-07-15 | 温州凯信电气有限公司 | Intelligent hydraulic electromagnetic type circuit breaker |
| CN203055824U (en) * | 2013-01-25 | 2013-07-10 | 乐清市诚通电力科技有限公司 | Manual mode and automatic mode integrated switching-on/switching-off mechanism of circuit breaker |
| CN104409295B (en) * | 2014-12-25 | 2016-08-17 | 常熟开关制造有限公司(原常熟开关厂） | The arrangement of clutch of electric operating mechanism of circuit-breaker |
-
2017
- 2017-11-21 CN CN201711165226.7A patent/CN107742600B/en active Active
- 2017-11-21 CN CN202010425030.2A patent/CN111524759B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5428196A (en) * | 1994-03-01 | 1995-06-27 | Eaton Corporation | Flexible shaft interface for circuit interrupter |
| CN1312571A (en) * | 2000-03-06 | 2001-09-12 | 富士电机株式会社 | Circuit breaker |
| CN104637742A (en) * | 2013-11-11 | 2015-05-20 | Ls产电株式会社 | Handle operating device for circuit breaker |
| CN207381349U (en) * | 2017-11-21 | 2018-05-18 | 乾友科技有限公司 | A kind of automatic breaking-closing operating device of breaker and its breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111524759B (en) | 2022-09-23 |
| CN107742600A (en) | 2018-02-27 |
| CN111524759A (en) | 2020-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107742600B (en) | Automatic switching-on and switching-off operation device of circuit breaker and circuit breaker | |
| US20190035566A1 (en) | Switch conversion apparatus | |
| EP2816580B1 (en) | On-off transmission device for high voltage electric switch | |
| CN210378786U (en) | Electric operating mechanism with gas insulation combination switch | |
| CN108695082B (en) | Energy storage transmission mechanism and rotary switch operating device using same | |
| CN207381349U (en) | A kind of automatic breaking-closing operating device of breaker and its breaker | |
| CN108010819B (en) | A kind of circuit breaker operation mechanism and working method of clutch linkage mechanism | |
| CN108493060B (en) | Operating mechanism of switch | |
| CN217690932U (en) | Operating mechanism for grounding switch and grounding switch | |
| CN108878186B (en) | Large-opening-distance dual-power automatic transfer switch | |
| CN104465253A (en) | Small-scale reclosure breaker | |
| CN114023594B (en) | Ring main unit load switch control device and control method | |
| CN202996735U (en) | Hand-operated and automatic integration opening and closing apparatus for residual-current operation breaker | |
| CN114974993A (en) | Outdoor spring operation box with isolation operation device and outdoor column switch | |
| CN110416033B (en) | Electric operating mechanism of stepping molded case circuit breaker | |
| CN107871646A (en) | Automatic divide-shut brake breaker | |
| CN100583344C (en) | Electric switch-on device of breaker | |
| CN204348654U (en) | A kind of reclosing breaker of miniaturization | |
| CN111564344A (en) | Electric operating mechanism of molded case circuit breaker | |
| CN216288244U (en) | Energy storage formula operating device is with divide-shut brake indicating assembly | |
| CN202394799U (en) | Solid-sealed type vacuum circuit breaker | |
| CN201812729U (en) | 252kVGIS three-phase mechanical linkage circuit breaker transmission device | |
| CN109904044B (en) | Circuit breaker electric operating mechanism without clutch link mechanism | |
| CN107665796B (en) | Linkage mechanism of circuit breaker and auxiliary contact thereof | |
| CN216528583U (en) | Operating handle structure and isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |