CN212209393U - Separating brake mechanism and circuit breaker - Google Patents
Separating brake mechanism and circuit breaker Download PDFInfo
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- CN212209393U CN212209393U CN202021274225.3U CN202021274225U CN212209393U CN 212209393 U CN212209393 U CN 212209393U CN 202021274225 U CN202021274225 U CN 202021274225U CN 212209393 U CN212209393 U CN 212209393U
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Abstract
The utility model discloses a separating brake mechanism and circuit breaker. The opening mechanism is provided with a first elastic piece which moves along with the opening action mechanism in the opening process to change the state of a first electric loop and a second elastic piece which moves along with an operating piece in the opening process to change the state of a second electric loop, so that whether the opening action mechanism acts first or the operating piece acts first can be determined according to the state switching time of the first electric loop and the state switching time of the second electric loop, and the opening reason of the circuit breaker can be determined.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a separating brake mechanism and circuit breaker.
Background
The circuit breaker is a common circuit protection device, generally speaking, the circuit breaker supports fault tripping and manual tripping, the fault tripping means that the circuit breaker automatically trips when a circuit has faults such as overload and short circuit, and the manual tripping means that an operating part of the circuit breaker is manually operated to trip.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a separating brake mechanism and circuit breaker, aim at solving the problem that the circuit breaker can not instruct the separating brake reason among the prior art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides an opening mechanism, is applied to in the circuit breaker, opening mechanism includes:
the brake separating action mechanism is used for executing brake separating action;
the operating part, the operating part with the separating brake actuating mechanism is connected, the operating part is used for driving the separating brake actuating mechanism
The first elastic piece is used for moving along with the brake separating action mechanism in the brake separating process so as to change the state of the first electric loop;
the second elastic piece and the second elastic piece are used for moving together with the operating piece in the opening process so as to change the state of the second electric loop.
The first elastic part comprises a first elastic part which is used for moving together with the brake-separating action mechanism to approach or separate from the first conductive part in the brake-separating process;
the second elastic part comprises a second elastic part which is used for moving together with the operating part to be close to or far away from the second conductive part in the brake opening process.
The brake separating mechanism is characterized in that the brake separating action mechanism is provided with a first stress part, and the elasticity of the first elastic part acts on the first stress part in the brake separating process;
the operating piece is provided with a second stress part, and the elastic force of the second elastic part acts on the second stress part in the brake opening process.
The separating brake mechanism, wherein, separating brake actuating mechanism includes:
the first transmission piece can rotate around the main shaft, and a first abutting surface is arranged on the first transmission piece;
one end of the second transmission part is provided with a transmission part, a second abutting surface is arranged on the transmission part, the other end of the second transmission part is provided with a first electric contact, and the second transmission part can rotate around the main shaft;
the third elastic component the elasticity of third elastic component acts on the second driving medium, just the elasticity direction of third elastic component is for keeping away from the direction of the second electrical contact in the circuit breaker, works as first butt face with second butt face butt just first electrical contact with during the contact of the second electrical contact in the circuit breaker, separating brake actuating mechanism keeps static, works as first butt face with when the second butt face is turned into the disengagement state by the butt state, the second driving medium rotates so that first electrical contact with the separation of second electrical contact.
The brake separating mechanism is characterized in that the transmission part is connected with the operating part through a connecting rod, and two ends of the connecting rod are respectively connected with the transmission part and the operating part in a rotating mode.
The opening mechanism is characterized in that the second force-bearing part is arranged on the first transmission piece.
The brake separating mechanism is characterized in that after the first abutting surface and the second abutting surface are converted into a separated state from an abutting state, the transmission part moves along with the second transmission piece so that the operating piece reaches a brake separating position.
The separating brake mechanism, wherein, the second driving medium includes:
the transmission part is arranged at one end of the connecting rod, and a first stop surface is arranged on the connecting rod;
the moving contact is rotationally connected with the connecting rod, the first electric contact is arranged on the moving contact, and a second stop surface matched with the first stop surface is arranged on the moving contact;
the elastic force of the third elastic piece acts on the movable contact.
A circuit breaker, wherein the circuit breaker comprises an opening mechanism as claimed in any one of the preceding claims.
Has the advantages that: compared with the prior art, the utility model provides a separating brake mechanism and circuit breaker, separating brake mechanism is applied to in the circuit breaker, separating brake mechanism follows the first elastic component of the same motion of separating brake actuating mechanism in order to change the state of first electric loop and follows the second elastic component of the same motion in order to change the state of second electric loop with the operating parts at the separating brake in-process through setting up, makes according to the state switching time of first electric loop with the state switching time of second electric loop can confirm to be that separating brake actuating mechanism moves earlier or the operating parts moves earlier to can realize confirming the separating brake reason of circuit breaker.
Drawings
Fig. 1 is a schematic overall structural diagram of an embodiment of a tripping mechanism according to the present invention;
fig. 2 is a schematic overall structural diagram of an embodiment of a tripping mechanism according to the present invention;
fig. 3 is a schematic structural diagram three of an embodiment of a tripping mechanism provided in the present invention;
fig. 4 is a schematic overall structural diagram of an embodiment of a tripping mechanism according to the present invention;
fig. 5 is a first schematic structural diagram of an opening actuating mechanism according to an embodiment of an opening mechanism provided in the present invention;
fig. 6 is a schematic structural diagram of a second opening actuating mechanism according to an embodiment of the opening mechanism provided in the present invention;
fig. 7 is a first schematic structural diagram illustrating an overall structure of an embodiment of a tripping mechanism when a first abutting surface and a second abutting surface are converted from an abutting state to a disengaging state;
fig. 8 is a second schematic structural diagram illustrating an overall structure of the first abutting surface and the second abutting surface when the first abutting surface and the second abutting surface are converted from the abutting state to the disengaging state according to an embodiment of the switching mechanism provided by the present invention;
fig. 9 is a schematic diagram of a middle-fault opening time of an embodiment of an opening mechanism according to the present invention;
fig. 10 is a schematic view illustrating an operation principle of a fourth elastic member in an embodiment of a tripping mechanism provided by the present invention;
fig. 11 is a first schematic structural diagram illustrating an overall opening state of an embodiment of an opening mechanism according to the present invention;
fig. 12 is a schematic overall structural diagram of an opening state of an embodiment of an opening mechanism according to the present invention;
fig. 13 is a schematic view of a connection structure between a transmission part and an operating part according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In an embodiment of the present invention, a tripping mechanism is provided, the tripping mechanism is applied to a circuit breaker, as shown in fig. 1, the tripping mechanism includes: the brake separating mechanism 100 is used for executing brake separating action, and the operating part 200 is used for driving the brake separating mechanism 100 to act. The opening action mechanism 100 may be any mechanism capable of performing an opening action, specifically, the opening of the circuit breaker is realized by separating electrical contacts, when the electrical contacts are connected, the circuit is connected, the circuit breaker is in a closing state, when the electrical contacts are separated, the circuit is disconnected, the circuit breaker is in an opening state, and the opening action mechanism 100 is used for realizing the separation of the electrical contacts to realize the opening. In the prior art, there are multiple separating brake actuating mechanisms, the separating brake actuating mechanism of the present invention can be but is not limited to one of the multiple separating brake actuating mechanisms in the prior art.
The separating brake mechanism further comprises: a first elastic member 300, the first elastic member 300 being used for moving together with the opening actuating mechanism 100 to change the state of the first electric circuit during opening, and a second elastic member 400, the second elastic member 400 being used for moving together with the operating member 200 to change the state of the second electric circuit during opening.
The circuit breaker comprises two driving parts of a switching-off action mechanism, namely an operating part and an internal driving part, wherein the internal driving part is used for driving the switching-off action mechanism to act to realize switching-off when faults such as short circuit, overload and the like occur, and the operating part is manually operated to drive the switching-off action mechanism to act to realize switching-off. In order to enable the circuit breaker to simultaneously support manual opening and manual closing, in the process that the internal driving piece drives the opening action mechanism to act to realize opening, the opening action mechanism also drives the operating piece to move, so that the operating piece reaches the opening position after opening is finished, and then the operating piece can be operated to the closing position again to realize manual closing. It can be seen from the foregoing description that, during the fault opening, the internal driving member drives the opening actuating mechanism to operate first, and then the opening actuating mechanism drives the operating member to move, and during the manual opening, the operating member drives the opening actuating mechanism to operate first. Therefore, in the present embodiment, by providing the first elastic member 300 moving along with the opening operation mechanism 100 during opening to change the state of the first electrical circuit and the second elastic member 400 moving along with the operating member 200 during opening to change the state of the second electrical circuit, when a fault occurs, since the opening operation mechanism 100 is first operated, the first elastic member 300 changes the state of the first electrical circuit, the operating member 200 is then operated, the time for the second elastic member 400 to change the state of the second electrical circuit is later than the time for the first elastic member 300 to change the state of the first electrical circuit, and when a fault occurs, since the operating member 200 is first operated, the second elastic member 400 changes the state of the second electrical circuit, and the opening operation mechanism 100 starts to operate under the driving of the operating member 200, the time when the first elastic member 300 changes the state of the first electric circuit is later than the time when the second elastic member 400 changes the state of the second electric circuit. Therefore, whether the brake is failed to be switched off or manually switched off can be determined through the state switching time of the first electric circuit and the second electric circuit.
Specifically, the first elastic member 300 and the second elastic member 400 may change the first electric circuit and the second electric circuit by changing the states of switches of the first electric circuit and the second electric circuit through the first elastic member 300 and the second elastic member 400, and in this embodiment, as shown in fig. 1, the first elastic member 300 and the second elastic member 400 change the states of the first electric circuit and the second electric circuit through the cooperation with a first conductive portion 311 and a second conductive portion 411, respectively, the first elastic member 300 may be conductive, the first elastic member 300 includes a first elastic portion 310, the first elastic portion 310 moves along with the opening operation mechanism 100 to approach or separate from the first conductive portion 311 during opening, when the first elastic portion 310 contacts the first conductive portion 311, the first electric circuit is turned on, and when the first elastic portion 310 is not in contact with the first conductive portion 311, the first electric circuit is turned off. Similarly, the second elastic element 400 is electrically conductive, the second elastic element 400 includes a second elastic portion 410, the second elastic portion 410 moves together with the operating element 200 to approach or separate from the second conductive portion 411 during opening, the second electric circuit is turned on when the second elastic portion 410 contacts the second conductive portion 411, and the second electric circuit is turned off when the second elastic portion 410 does not contact the second conductive portion 411.
As shown in fig. 1-2, the opening actuating mechanism 100 is provided with a first force-receiving portion 101, during the opening process, the elastic force of the first elastic part 310 acts on the first force-bearing part 101, the first force-receiving portion 101 may be a portion that overcomes the elastic force of the first elastic portion 310 such that the first elastic portion 310 moves closer to or farther from the first conductive portion 311, fig. 1-2 show the situation that the first force-bearing part 101 overcomes the elastic force of the first elastic part 310 during the opening process, so that the first elastic part 310 is far away from the first conductive part 311, as shown in fig. 1, when the opening mechanism is in a closed state, the first elastic part 310 and the first conductive part 311 are connected, the first electric circuit is connected, during the opening process, as shown in fig. 2, the first elastic portion 310 is away from the first conductive portion 311 by the pushing force of the first force-receiving portion 101. As shown in fig. 3 to 4, the operating member 200 is provided with a second force-receiving portion 201, during the opening process, the elastic force of the second elastic part 410 acts on the second force-bearing part 201, the second force-receiving portion may be a portion that overcomes the elastic force of the second elastic portion 410 such that the second elastic portion 410 moves closer to or farther from the second conductive portion 411, fig. 3-4 show the situation that the second force-bearing part 201 overcomes the elastic force of the second elastic part 410 during the opening process, so that the second elastic part 410 is far away from the second conductive part 411, as shown in fig. 3, when the switching mechanism is in a closed state, the second elastic portion 410 and the second conductive portion 411 are connected, the first electrical circuit is connected, and the operating element 200 is in a closed position, during opening, as shown in fig. 4, the second elastic portion 410 is away from the second conductive portion 411 by the pushing force of the second force-bearing portion 201.
In one possible implementation, as shown in fig. 5 to 6, the opening actuating mechanism 100 includes: the opening and closing mechanism comprises a main shaft 10 and a first transmission member 11, wherein the first transmission member 11 can rotate around the main shaft 10, the opening and closing action mechanism further comprises a second transmission member 12, one end of the second transmission member 12 is provided with a transmission part 13, the transmission part 13 can be integrally formed with the second transmission member 12, or can be fixedly connected through riveting, threaded connection and the like after being respectively formed, the first transmission member 11 is provided with a first abutting surface 110, the transmission part 13 is provided with a second abutting surface 120 (as shown in fig. 6, fig. 6 is a drawing in which the part of the second transmission member 12 except the transmission part 13 in fig. 5 is hidden), the other end of the second transmission member 12 is provided with a first electrical contact 121, and the first electrical contact 121 is matched with a second electrical contact 122 arranged in a circuit breaker where the opening and closing mechanism is located to cut off and close the circuit, specifically, when the first electrical contact 121 contacts the second electrical contact 122, the circuit is closed, and the circuit breaker is in a closed state, and when the first electrical contact 121 is separated from the second electrical contact 122, the circuit is cut off, and the circuit breaker is in an open state.
The operating member 200 includes a closing position and an opening position (as shown in fig. 5 and 11, the operating member 200 is in the closing position in fig. 5, and the operating member 200 is in the opening position in fig. 11). The second transmission member can rotate around the spindle 10, the opening actuating mechanism 100 further includes a third elastic member 14, the third elastic member 14 can be a spring, a spring plate, etc., the elastic force of the third elastic member 14 acts on the second transmission member 12, and the elastic force direction of the first elastic member 14 is a direction away from the second electrical contact 122, when the first abutting surface 110 abuts against the second abutting surface 120 and the first electrical contact 121 contacts with the second electrical contact 122, the operating member 200 is in the closing position, at this time, due to the combined action of the acting force between the operating member 200 and the transmission portion 13, the acting force between the first abutting surface 110 and the second abutting surface 120, the acting force between the first electrical contact 121 and the second electrical contact 122, and the elastic force of the first elastic member 14, the first transmission member 11 and the second transmission member 12 are kept relatively stationary, the opening actuation mechanism is not actuated, so that the first electrical contact 121 and the second electrical contact 122 are kept in contact while the operating member 200 is kept in the closing position.
When the first abutting surface 110 and the second abutting surface 120 are turned from the abutting state to the disengaging state (as shown in fig. 7-8, fig. 8 is a diagram of fig. 7 in which the portion of the second transmission member 12 except the transmission portion 13 is hidden), as the acting force between the first abutting surface 110 and the second abutting surface 120 disappears, the force balance between the first transmission member 11 and the second transmission member 12 is broken, the second transmission member 12 rotates under the elastic force of the third elastic member 14, so that the first electrical contact 121 and the second electrical contact 122 are separated, specifically, the elastic force acting point of the third elastic member 14 is between the first electrical contact 121 and the main shaft 10, and when the second transmission member 12 rotates around the main shaft 10, the end provided with the first electrical contact 121 moves away from the second electrical contact 122, the first electrical contact 121 and the second electrical contact 122 are separated, the circuit is cut off, and the opening of the circuit breaker is realized. The first electrical contact 121 and the second electrical contact 122 can be separated by the internal driving member driving the first transmission member 11 to rotate, that is, the first transmission member 11 is configured to receive the driving force of the internal driving member and rotate to separate the first electrical contact 121 and the second electrical contact 122.
In a possible implementation manner, in order to make the contact between the first electrical contact 121 and the second electrical contact 122 more stable, as shown in fig. 5, the second transmission member 12 includes a connecting rod 123 and a movable contact 124, the movable contact 124 is rotatably connected to the connecting rod 123, specifically, a rotating shaft 1230 is disposed on the connecting rod 123, the movable contact 124 is rotatably connected to the connecting rod 123 through the rotating shaft 1230, the transmission part 13 is disposed at one end of the connecting rod 123, the first electrical contact 121 is disposed on the movable contact 124, a first stop surface 1231 is disposed on the connecting rod 123, a second stop surface 1241 matched with the first stop surface 1231 is disposed on the movable contact 124, the elastic force of the third elastic member 14 acts on the movable contact 124, and the rotating shaft 1230 is disposed between the elastic force acting point of the third elastic member 14 and the first electrical contact 121, in this way, when the first electrical contact 121 and the second electrical contact 122 are in contact with each other, under the elastic force of the third elastic element 14, the end of the movable contact 124, where the first electrical contact 121 is disposed, tends to rotate in the direction of the second electrical contact 122, so that the first electrical contact 121 and the second electrical contact 122 are in more reliable contact. After the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state, the connecting rod 123 rotates under the elastic force of the first elastic member 14 and the action force of the second electrical contact 122 on the first electrical contact 121, and simultaneously the movable contact 124 rotates around the rotating shaft 1230 under the elastic force of the first elastic member 14, when the movable contact 124 rotates around the rotating shaft 1230 for a certain angle, the first stop surface 1231 contacts with the second stop surface 1241, so that the movable contact 124 can not rotate around the rotating shaft 1230 any more, and at this time, the connecting rod 123 and the movable contact 124 integrally rotate (as shown in fig. 7), so as to separate the first electrical contact 121 and the second electrical contact 122.
The opening operation mechanism 100 is connected to the operation member 200, and specifically, as shown in fig. 13, the transmission part 13 is connected with the operation part 200 through a connecting rod 136, two ends of the connecting rod 136 are respectively connected with the transmission part 13 and the operation part 200 in a rotating way, the transmission part 13 may be provided with a first hole for receiving one end of the connecting rod, the operation member 200 may be provided with a second hole for receiving the other end of the connecting rod, both ends of the connecting rod may rotate in the first hole and the second hole, respectively, in the process of operating the operating member 200 to move to the open position, the operating member 200 rotates around a fixed shaft, the connecting rod 136 follows the movement of the second hole to move the transmission part 13, meanwhile, the rotation of the connecting rod 136 in the first hole and the second hole can prevent the operating element 200 and the opening actuating mechanism 100 from being locked in the transmission process.
Further, in the present embodiment, in order to reduce the operating force of the operating member 200 driving the transmission member 13, the distance from the first electrical contact 121 on the movable contact 124 to the rotating shaft 1230 is equal to the distance from the acting point of the third elastic member 14 on the movable contact 124 to the rotating shaft 1230.
The first force-receiving portion 101 is disposed on the first transmission member 11, and when a brake is broken, as shown in fig. 9, the internal driving member 15 in the circuit breaker for driving the brake-separating mechanism 100 drives the brake-separating mechanism 100 to move, specifically, the internal driving member 15 collides with the first transmission member 11 and drives the first transmission member 11 to rotate around the main shaft 10 (in fig. 9, the first transmission member 11 rotates counterclockwise) so that the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state, thereby achieving brake separation, specifically, the internal driving member 15 is used for driving the first transmission member 11 to rotate so that the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state, during the rotation of the first transmission member 11, the second force-receiving portion 201 pulls the first elastic portion 310 away from the first conductive portion 311, after the first transmission member 11 rotates by a certain angle, the first abutting surface 110 and the second abutting surface 120 are turned from the abutting state to the disengaging state, the second transmission member 12 starts to rotate, the operating member 200 is driven to move from the switching-on position to the switching-off position in the process of rotating the second transmission member 12, the second elastic part 411 disengages from the second conductive part 411 along with the movement of the operating member 200, and the second electric circuit is disconnected. It is clear that, at this point, the point in time at which the second electrical circuit opens is later than the point in time at which the first electrical circuit opens.
In a possible implementation manner, the internal driving member 15 includes a power member 151 and a rotating member 152, when the first transmission member 11 is driven to rotate, the power member 151 provides power to enable the rotating member 152 to collide with the first transmission member 11 to rotate, a direction of a collision force of the rotating member 152 on the first transmission member 11 is a direction away from the second electrical contact 122 to enable the first abutting surface 110 and the second abutting surface 120 to be separated, specifically, the power member 151 may be an electromagnetic system including a coil winding, an electromagnetic torque is generated after the coil winding is conducted to provide a suction force for adsorbing the rotating member 152, a return elastic member is disposed on the rotating member 152, and when the opening is required, the power member 151 generates an electromagnetic torque greater than a counter torque of the armature return elastic member, so that two ends of the rotating member 152 rotate in a direction shown by an arrow in fig. 9 to collide with the first transmission member 152 A movable member 11. After the rotating part 152 drives the opening actuating mechanism to complete opening, the power part 151 no longer provides power, and the rotating part 152 resets under the action of the resetting elastic part, so that the rotating part 152 can realize the next opening driving. Of course, the power element 151 may be another element capable of driving the rotation element 152 to rotate.
The opening operation mechanism includes a fourth elastic member 18, and when the inner driving member 15 is used to open the brake, after the first abutting surface 110 and the second abutting surface 120 are switched from the abutting state to the disengaged state, the elastic force of the fourth elastic member 18 acts on the first transmission member 11 to cause the first abutting surface 110 and the second abutting surface 120 to abut again, so that the first abutting surface 110 and the second abutting surface 120 return to the closed state while the abutting state is maintained. Specifically, the fourth elastic element 18 is fixedly disposed, the fourth elastic element 18 may be fixed to the circuit breaker or the main shaft, and the fourth elastic element 18 may be a spring, an elastic sheet, or the like. As shown in fig. 10, the elastic portion of the fourth elastic member 18 does not contact the first transmission member 11 when the first abutting surface 110 abuts against the second abutting surface 120, when the first transmission member 11 rotates to convert the abutting state of the first abutting surface 110 and the second abutting surface 120 into the separated state, the first transmission member 11 continues to rotate, the second transmission member 12 drives the transmission portion 13 to move, the first transmission member 11 contacts the fourth elastic member 18 after rotating to a certain angle, the rotation is limited, and after the second transmission member 12 rotates to a certain angle, the transmission portion 13 will contact the first transmission member 11 again, the elastic force of the fourth elastic member 18 acts on the first transmission member 11 to overcome the friction force between the first abutting surface 110 and the second abutting surface 120, the first abutting surface 110 and the second abutting surface 120 are brought into abutment again (as shown in fig. 11 to 12, fig. 12 is a view of the second transmission member 12 of fig. 11 with the portion other than the transmission portion 13 hidden). The second transmission member 12 is provided with a third stop surface 125, when the first abutting surface 110 and the second abutting surface 120 abut against each other again, the third stop surface 125 contacts with a limiting structure arranged on the circuit breaker, so that the second transmission member 12 cannot rotate continuously, the first transmission member 11, the transmission portion 13 and the second transmission member 12 keep relatively still again, and the first electrical contact 121 and the second electrical contact 122 are kept in a separated state. After the first abutting surface 110 and the second abutting surface 120 abut against each other again, the operating element 200 can be operated to close the switch, when the switch is closed, the operating element 200 moves from the switch-off position to the switch-on position to drive the transmission part 13 to move, and the first transmission member 11 rotates together with the second transmission member 12 due to the abutting acting force of the first abutting surface 110 and the second abutting surface 120, so that the first electrical contact 121 and the second electrical contact 122 are in contact with each other, and the switch is closed. After the switching-on, the switching-off action mechanism is restored to the switching-on state, that is, the switching-off action mechanism maintains balance until the operating element 200 is operated or the first transmission element 11 rotates, so that the balance of the switching-off action mechanism is broken, and the switching-off action is performed.
When the brake is manually opened, the operating element 200 is operated to move the operating element 200 to the brake opening position, and the transmission part 13 is driven to move in the process that the operating element 200 moves to the brake opening position, so that the second transmission part 12 and the transmission part 13 move together, the first electric contact 121 and the second electric contact 122 are separated, and the brake opening is realized. When the opening is performed by operating the operating element 200, the first contact surface 110 and the second contact surface 120 maintain the contact state. In the process of the movement of the operating element 200, the second elastic portion 410 is separated from the second conductive portion 411 first along with the movement of the operating element 200, the second electric circuit is opened, the second transmission member 12 starts to rotate under the driving of the operating element 200, the first elastic portion 310 is separated from the first conductive portion 311 along with the rotation of the first transmission member 11, the first electric circuit is opened, and in the process, the time of opening the first electric circuit is later than the time of opening the second electric circuit.
In summary, the present embodiment provides a switching mechanism, in which the switching mechanism includes a first elastic element and a second elastic element, the first elastic element moves along with a switching mechanism to change a state of a first electrical loop during switching, and the second elastic element moves along with an operating element to change a state of a second electrical loop during switching, so that whether the switching mechanism operates first or the operating element operates first can be determined according to a state switching time of the first electrical loop and a state switching time of the second electrical loop, thereby determining a switching reason of the circuit breaker.
In another embodiment of the present invention, a circuit breaker is provided, which includes the opening mechanism as described above.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides a tripping mechanism, its characterized in that is applied to in the circuit breaker, tripping mechanism includes:
the brake separating action mechanism is used for executing brake separating action;
the operating piece is connected with the opening actuating mechanism and used for driving the opening actuating mechanism;
the first elastic piece is used for moving along with the brake separating action mechanism in the brake separating process so as to change the state of the first electric loop;
the second elastic piece and the second elastic piece are used for moving together with the operating piece in the opening process so as to change the state of the second electric loop.
2. The opening mechanism according to claim 1, wherein the first elastic member comprises a first elastic portion, and the first elastic portion is configured to move along with the opening actuating mechanism to approach or separate from the first conductive portion during opening;
the second elastic part comprises a second elastic part which is used for moving together with the operating part to be close to or far away from the second conductive part in the brake opening process.
3. The opening mechanism according to claim 2, wherein the opening actuating mechanism is provided with a first force-receiving portion, and during opening, the elastic force of the first elastic portion acts on the first force-receiving portion;
the operating piece is provided with a second stress part, and the elastic force of the second elastic part acts on the second stress part in the brake opening process.
4. The opening mechanism according to claim 3, wherein the opening action mechanism comprises:
the first transmission piece can rotate around the main shaft, and a first abutting surface is arranged on the first transmission piece;
a transmission part is arranged at one end of the second transmission part and provided with a second abutting surface, a first electric contact is arranged at the other end of the second transmission part, and the second transmission part can rotate around the main shaft;
the third elastic component the elasticity of third elastic component acts on the second driving medium, just the elasticity direction of third elastic component is for keeping away from the direction of the second electrical contact in the circuit breaker, works as first butt face with second butt face butt just first electrical contact with during the contact of the second electrical contact in the circuit breaker, separating brake actuating mechanism keeps static, works as first butt face with when the second butt face is turned into the disengagement state by the butt state, the second driving medium rotates so that first electrical contact with the separation of second electrical contact.
5. The opening mechanism according to claim 4, wherein the transmission part is connected to the operation part through a connecting rod, and two ends of the connecting rod are rotatably connected to the transmission part and the operation part, respectively.
6. The opening mechanism according to claim 4, wherein the second force-receiving portion is disposed on the first transmission member.
7. The opening mechanism according to claim 4, wherein after the first abutment surface and the second abutment surface are converted from the abutment state to the disengagement state, the transmission portion moves following the second transmission member to cause the operating member to reach the opening position.
8. The opening mechanism according to claim 4, wherein the second transmission member comprises:
the transmission part is arranged at one end of the connecting rod, and a first stop surface is arranged on the connecting rod;
the moving contact is rotationally connected with the connecting rod, the first electric contact is arranged on the moving contact, and a second stop surface matched with the first stop surface is arranged on the moving contact;
the elastic force of the third elastic piece acts on the movable contact.
9. A circuit breaker, characterized in that it comprises a tripping mechanism according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021274225.3U CN212209393U (en) | 2020-07-02 | 2020-07-02 | Separating brake mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021274225.3U CN212209393U (en) | 2020-07-02 | 2020-07-02 | Separating brake mechanism and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212209393U true CN212209393U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021274225.3U Expired - Fee Related CN212209393U (en) | 2020-07-02 | 2020-07-02 | Separating brake mechanism and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212209393U (en) |
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2020
- 2020-07-02 CN CN202021274225.3U patent/CN212209393U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |