CN212411979U

CN212411979U - Integrated brake separating device and circuit breaker

Info

Publication number: CN212411979U
Application number: CN202021271665.3U
Authority: CN
Inventors: 马芸
Original assignee: Xinmeidi Chengdu Technology Co ltd
Current assignee: Xinmeidi Chengdu Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-01-26
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses an integrated brake separating device and a circuit breaker, wherein the integrated brake separating device is applied to the circuit breaker and comprises a tripping device and a brake separating executing mechanism which is matched with the tripping device to work; the trip device includes: the first tripping device is used for controlling the opening actuating mechanism to execute opening operation when the circuit breaker is short-circuited or overloaded; the second tripping device is used for driving the opening actuating mechanism to execute opening operation when the circuit breaker is subjected to electric leakage, overvoltage, undervoltage and remote control on opening; the first tripping device and the second tripping device are arranged into an integrated structure. The utility model discloses the integrated integrative design of second trip gear and first trip gear, occupation space is littleer to realize functions such as short-circuit protection, overload protection, earth leakage protection, overvoltage protection, undervoltage protection, excess temperature protection, self-checking protection and control separating brake on the basis that the part does not increase.

Description

Integrated brake separating device and circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field especially relates to an integral type separating brake device and circuit breaker.

Background

The circuit breaker is common circuit protection device, generally speaking, the circuit breaker has separating brake and combined floodgate two kinds of states, when the circuit breaker is in combined floodgate state, the circuit normal operating, take place transshipping, under the trouble such as short circuit or need overhaul the condition such as etc. to the circuit, the circuit breaker need carry out the separating brake operation, with the circuit break, and in prior art, the trip gear function singleness that the circuit breaker adopted, mainly by the coil, move, quiet iron core, the push rod, the yoke, the spring equipment forms, this trip gear can only realize short-circuit protection's function, and when needs realize earth leakage protection, cross when other protect function such as undervoltage protection, still need increase the trip gear of solitary realization these functions, thereby need additionally increase the part, make circuit breaker structure complicated, it is bulky.

Thus, there is a need for improvements and enhancements in the art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an integral type separating brake device and circuit breaker, need increase the trip gear of solitary realization these functions when aiming at solving circuit breaker for realizing more protect function among the prior art to need additionally to increase the part, make the complicated, bulky problem of circuit breaker structure.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:

the integrated brake separating device is applied to a circuit breaker, and comprises a tripping device and a brake separating executing mechanism matched with the tripping device; the trip device includes: the first tripping device is used for controlling the opening actuating mechanism to execute opening operation when the circuit breaker is short-circuited or overloaded; the second tripping device is used for controlling the opening actuating mechanism to execute opening operation when the circuit breaker generates electric leakage, overvoltage and undervoltage faults and remotely controls opening; the first tripping device and the second tripping device are arranged into an integrated structure.

In one embodiment, the first trip device includes: a bobbin disposed on the circuit breaker; the oil cup is arranged on the framework; the magnetic yoke is arranged on the oil cup; the electromagnetic oil damping release comprises an electromagnetic oil damping release body and a rotating body, wherein the electromagnetic oil damping release body is formed by coils arranged on the framework, and the rotating body is arranged on the electromagnetic oil damping release body and is attracted by magnetic force.

In one embodiment, a central hole is provided in the frame, and the oil cup is disposed in the central hole and riveted to the yoke.

In one embodiment, the rotating part is arranged on a shell of the circuit breaker and is rotatably connected with the shell, one end of the rotating part is used for being adsorbed by the oil cup, and the other end of the rotating part is used for being matched with the opening actuating mechanism to work so as to drive the opening actuating mechanism to execute opening operation.

In one embodiment, the second trip device includes: a bobbin disposed on the circuit breaker; the oil cup is arranged on the framework; the magnetic yoke is arranged on the oil cup; the winding of establishing on the skeleton and setting the one end of skeleton through magnetic force to the adsorbed rotation piece of oil cup, the winding with control module in the circuit breaker is connected.

In one embodiment, when the first trip device and the second trip device are provided as an integral structure, the bobbin, the oil cup, the yoke, and the rotating member of the first trip device are common to the bobbin, the oil cup, the yoke, and the rotating member of the second trip device.

In one embodiment, when the first and second trip devices are configured as an integrated structure, the coil is disposed on one side of the coil winding, and the first and second trip devices are arranged on the bobbin in a predetermined order.

A circuit breaker is characterized by comprising the integrated opening device in any one of the above aspects.

Has the advantages that: compared with the prior art, the utility model provides an integral type separating brake device and circuit breaker, the utility model provides an integral type separating brake device is with the integrated integrative design of second trip gear and first trip gear, and occupation space is littleer to realize functions such as short-circuit protection, overload protection, earth leakage protection, overvoltage protection, undervoltage protection, excess temperature protection, self-checking protection and control separating brake on the basis that the part does not increase.

Drawings

Fig. 1 is the structure schematic diagram of the integrated brake-separating device provided by the utility model.

Fig. 2 is a schematic structural diagram of an embodiment of the integrated switching-off device provided by the present invention.

Fig. 3 is a schematic view illustrating that the first collision part and the first protrusion of the integrated opening device provided by the present invention generate collision;

fig. 4 is a schematic view of a second collision portion and a second protrusion in the integrated opening device provided by the present invention generating collision;

fig. 5 is a schematic overall structural diagram of a brake-separating actuator according to an embodiment of the present invention;

fig. 6 is a schematic view of an overall structure of a brake-separating actuator according to an embodiment of the integrated brake-separating device of the present invention;

fig. 7 is a schematic view of the overall structure of the opening actuator in an embodiment of the integrated opening device according to the present invention;

fig. 8 is a schematic view of an overall structure of an opening actuator according to an embodiment of the integrated opening device provided in the present invention;

fig. 9 is a first schematic collision diagram of a rotating member and a brake-separating actuator according to an embodiment of the present invention;

fig. 10 is a second schematic collision diagram of the rotating member and the opening actuator according to an embodiment of the present invention;

fig. 11 is a first schematic diagram of an opening actuator in a closing state in an embodiment of the integrated opening device provided by the present invention;

fig. 12 is a second schematic diagram of an opening actuator in a closing state in an embodiment of the integrated opening device provided by the present invention;

fig. 13 is a schematic view of a connection structure between the transmission part and the operation device according to an embodiment of the integrated opening device provided by the present invention;

fig. 14 is a schematic view illustrating an operation principle of the second elastic member in an embodiment of the integrated opening device according to the present invention;

fig. 15 is a schematic view illustrating an operation principle of the second elastic member in an embodiment of the integrated switching device according to the present invention;

fig. 16 is a schematic functional diagram of a third elastic member in an embodiment of the integrated opening device provided in 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, there is provided an integrated opening device, as shown in fig. 1, the integrated opening device includes: the trip device 100 and the opening actuating mechanism 200 matched with the trip device 100; the trip device 100 includes: the first tripping device 101 is used for controlling the opening actuating mechanism 200 to execute opening operation when the circuit breaker is short-circuited or overloaded; the second tripping device 102 is used for driving the opening actuating mechanism 200 to execute opening operation when the circuit breaker has electric leakage, overvoltage and undervoltage faults and remotely controls the opening of the circuit breaker; the first trip device 101 and the second trip device 102 are arranged into an integrated structure. In this embodiment, the first tripping device 101 and the second tripping device 102 are configured as an integrated structure, and the first tripping device 101 controls the opening executing mechanism 200 to perform the opening operation when the circuit breaker is short-circuited or overloaded, and the second tripping device 102 controls the opening executing mechanism 200 to perform the opening operation when the circuit breaker is in leakage, overvoltage, undervoltage fault, or remote control. Therefore, the circuit breaker of the embodiment can realize the functions of short-circuit protection, overload protection, leakage protection, overvoltage protection, undervoltage protection, over-temperature protection, self-checking protection, control opening and the like on the basis that parts are not increased. In addition, the second tripping device 102 and the first tripping device 101 are integrated into a whole, so that the occupied space is smaller, and compared with the circuit breaker in the prior art, the circuit breaker can achieve the effect of miniaturization.

Specifically, as shown in fig. 1, in one implementation, the first trip device 101 includes: a framework 103 provided on the circuit breaker case 10; an oil cup 104 disposed on the skeleton 103; a yoke 105 provided on the oil cup 104; the electromagnetic oil damping release comprises an electromagnetic oil damping release consisting of a coil 106 arranged on the framework 103 and a rotating part 300 arranged at one end of the framework 103 and attracted to the oil cup through magnetic force. In this embodiment, a central hole is formed in the frame 103, and the oil cup 104 is disposed in the central hole and is clamped with the magnetic yoke 105, so that the oil cup 104 is fixed. The rotating member 300 is disposed on a housing (omitted in fig. 1) of the circuit breaker and is rotatably connected to the housing, one end of the rotating member 300 is used for being adsorbed to the oil cup 104, and the other end of the rotating member 300 is used for cooperating with the opening actuator 200 to drive the opening actuator 200 to perform an opening operation. When the circuit breaker is applied specifically, the electromagnetic oil damping tripping device in the first tripping device is connected in series in the main circuit of the circuit breaker, when normal current is conducted in the circuit, the electromagnetic torque generated by the electromagnetic oil damping tripping device is smaller than the counter torque generated by the rotating part resetting elastic part in the first tripping device, and the circuit breaker operates normally; when overload or short circuit occurs in the circuit, the electromagnetic torque generated by the electromagnetic oil damping release is greater than the counter torque generated by the rotating part resetting elastic part, so that the rotating part is attracted, because the rotating part 300 is rotatably connected to the shell of the circuit breaker, the rotating part 300 rotates clockwise in the attracting process of the electromagnetic oil damping release and controls the opening executing mechanism 200 to execute opening operation in the rotating process, after the opening operation is completed, the main circuit of the circuit breaker is disconnected, the electromagnetic torque generated by the electromagnetic oil damping release disappears, and the rotating part returns to the initial position under the torque action of the resetting elastic part.

In another implementation manner, as shown in fig. 1 to fig. 3, the second trip device 102 in this embodiment includes: a frame 103 disposed on the circuit breaker; an oil cup 104 disposed on the skeleton; a yoke 105 provided on the oil cup 104; the winding is established coil winding 107 and setting on the skeleton 103 the one end of skeleton 103 through magnetic force to the rotation piece 300 of coil winding actuation, coil winding 104 with control module in the circuit breaker is connected. In this embodiment, the framework 103 is provided with a central hole, and the oil cup 104 is disposed in the central hole and is clamped with the magnetic yoke 105, so as to fix the oil cup 104. Similarly, the rotating member 300 in this embodiment is disposed on a housing (omitted from fig. 1) of the circuit breaker and is rotatably connected to the housing, one end of the rotating member 300 is used for attracting the coil winding in the second trip device, and the other end is used for cooperating with the opening actuator 200 to drive the opening actuator 200 to perform an opening operation. In concrete application, when other faults such as electric leakage, overvoltage, undervoltage and the like occur in the circuit, or when a user actively controls the opening, the control module sends a control signal, the coil winding receives the control signal and then conducts to generate electromagnetic torque, and when the electromagnetic torque generated by the coil winding is greater than the counter torque generated by the rotating part reset elastic part, so that the rotating part 300 is attracted, because the rotating part 300 is rotatably connected to the shell of the circuit breaker, the rotating part 300 can rotate clockwise after receiving the electromagnetic torque, and the opening execution mechanism 200 executes the opening operation in the rotating process.

Since the first trip device 101 and the second trip device 102 in this embodiment are integrally disposed, in order to realize the miniaturization feature of the circuit breaker, in this embodiment, when the first trip device 101 and the second trip device 102 are integrally disposed, the frame 103, the oil cup 104, the yoke 105, and the rotating member 300 of the first trip device 101 are shared by the frame 103, the oil cup 104, the yoke 105, and the rotating member 300 of the second trip device 102. And as shown in fig. 1, the coil 106 is disposed above the coil winding 107. In this way, the trip device 100 in this embodiment includes the first trip device 101 and the second trip device 102, and since many components of the first trip device 101 and the second trip device 102 are shared and the coil 106 is disposed above the coil winding 107, the first trip device 101 and the second trip device 102 are integrated into a whole, so that the trip device 100 is more compact in size and structure, and functions such as short-circuit protection, overload protection, leakage protection, overvoltage protection, undervoltage protection, over-temperature protection, self-checking protection, and brake separating control can be realized without increasing parts. And can also realize the miniaturized characteristics of circuit breaker.

In one embodiment, as shown in fig. 2, the opening actuator 200 in this embodiment is used to control the circuit breaker to perform the opening operation. The opening actuator 200 cooperates with the rotating member 300, and the opening actuator 200 is driven by the action of the rotating member 300 to perform an opening operation. Specifically, a first protrusion 11a and a second protrusion 11b are arranged on the opening actuator 200, a first collision portion 21a and a second collision portion 21b are arranged on the rotating member 300, and when the rotating member 300 drives the opening actuator 200 to perform the opening operation, the first collision portion 21a is used for colliding with the first protrusion 11a, and the second collision portion 21b is used for colliding with the second protrusion 11 b.

The opening executing mechanism 200 may be any mechanism capable of executing an opening operation, specifically, the opening of the circuit breaker is realized by separating electrical contacts, when the electrical contacts are connected, a 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 executing mechanism 200 is used for realizing the separation of the electrical contacts to realize the opening. In the prior art, there are a plurality of opening actuators 200, and the opening actuator 200 of the present invention can be, but is not limited to, one of the plurality of opening actuators 200 in the prior art.

When the brake needs to be opened, as shown in fig. 2, the rotating member 300 acts, the first collision portion 21a collides with the first protrusion 11a first time, the brake-opening executing mechanism 200 starts to act after receiving the collision force of the first collision portion 21a on the first protrusion 11a, and in the process of acting the brake-opening executing mechanism 200, as shown in fig. 4, the second collision portion 21b collides with the second protrusion 11b, and gives kinetic energy to the brake-opening executing mechanism 200 again, and the brake-opening executing mechanism 200 accelerates under the action of the collision force of the second collision portion 21b on the second protrusion 11, so as to realize rapid brake opening. From the preceding explanation, the utility model provides a separating brake actuating mechanism 200 is through rotating twice collisions to separating brake actuating mechanism 200 for separating brake actuating mechanism 200 can realize the separating brake operation fast, shortens the separating brake time, and then shortens the dwell time of electric arc between the electrical contact, improves the performance and the life of circuit breaker.

As shown in fig. 2, the rotating member 300 in this embodiment further includes a driving portion 220, and the driving portion 220 is configured to receive the electromagnetic force generated by the trip device 100 and drive the first collision portion 21a and the first protrusion 11a to collide by absorption (i.e., absorption of the driving portion 220 by the oil cup 104 in the trip device 100). In one possible implementation manner, the rotating member 300 may rotate around a fixed shaft 400 (i.e., the rotating member 300 is rotatably disposed on the housing of the circuit breaker), the first collision portion 21a and the second collision portion 21b are on one side of the fixed shaft 400, the action point of the electromagnetic force provided by the trip device 100 is on the other side of the fixed shaft 400, the trip device 100 provides the electromagnetic force to attract the rotating member 300, so as to drive the rotating member 300 to rotate around the fixed shaft 400, such that the first collision portion 21a on the other side of the fixed shaft 400 collides with the first protrusion 11a after rotating, and then the rotating member 300 continues to rotate, such that the second collision portion 21b collides with the second protrusion 11 b.

In one possible implementation, as shown in fig. 5 to 6, the opening actuator 200 includes: the opening actuating mechanism 200 further includes a second transmission member 12, one end of the second transmission member 12 is provided with a transmission portion 13, the transmission portion 13 may be integrally formed with the second transmission member 12, or may be fixedly connected by riveting, screwing, or the like after being respectively formed, the first transmission member 11 is provided with a first abutting surface 110, the transmission portion 13 is provided with a second abutting surface 120 (as shown in fig. 5, fig. 6 is a view of hiding a portion of the second transmission member 12 except the transmission portion 13 in fig. 5), 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 provided in a circuit breaker where the opening actuating mechanism 200 is located to cut off and connect a 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 second transmission member may rotate around the spindle 10, the opening actuator 200 further includes a first elastic member 14, the first elastic member 14 may be a spring, an elastic sheet, or the like, an elastic force of the first elastic member 14 acts on the second transmission member 12, and an 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 the second electrical contact 122, due to an acting force between the first abutting surface 110 and the second abutting surface 120, an acting force between the first electrical contact 121 and the second electrical contact 122, and an elastic force of the first elastic member 14, the opening actuator 200 is balanced in force, and the first transmission member 11 and the second transmission member 12 are kept relatively stationary. And the position of the second electrical contact 122 is fixed, the first electrical contact 121 and the second electrical contact 122 can maintain a contact state, that is, the circuit breaker maintains a closed state. 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 first 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 first 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.

As shown in fig. 9 to 10, the first protrusion 11a and the second protrusion 12a are disposed on the first transmission member 11, and the first transmission member 11 is further disposed with a third protrusion 11c, such that, after the rotation member 300 operates, the first collision portion 21a collides with the first protrusion 11a (as shown in fig. 8), so that the first transmission member 11 starts to rotate, so that the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaged state, the distance from the first collision portion 21a to the rotation axis of the rotation member 200 is smaller than the distance from the second collision portion 21b to the rotation axis of the rotation member 200, the collision force of the first collision portion 21a against the first transmission member 11 is larger than the collision force of the second collision portion 21b against the first transmission member 11 when the rotation member 200 rotates, and the distance from the first protrusion 11a to the main shaft 10 is larger than the distance from the second protrusion 11b to the main shaft 10 In this case, the moment generated by the collision force of the first collision portion 21a on the first protrusion 11a to drive the first transmission member 11 to rotate is relatively large, so as to ensure that the first abutting surface 110 and the second abutting surface 120 can be reliably separated, and after the first abutting surface 110 and the second abutting surface 120 are separated, the second transmission member 12 starts to rotate under the elastic force of the first elastic member 14, and drives the first electrical contact 121 and the second electrical contact 122 to separate. Further, after the first collision portion 21a and the first projection 11a collide,

the second collision portion 21b collides with the second protrusion 11b (as shown in fig. 9), so as to realize a second collision on the first transmission member 11, when the first collision portion 21b collides with the second protrusion 11b, the first abutting surface 110 and the second abutting surface 120 have been separated by the collision action of the first collision portion 21a and the first protrusion 11a, the first transmission member 11 is in a free state, the first transmission member 11 is accelerated to rotate by the kinetic energy of the collision, the third protrusion 11c provided on the first transmission member 11 collides with the second transmission member 12, the second transmission member 12 receives the collision force of the third protrusion 11c under the elastic force of the first elastic member 14, so that the rotation speed of the second transmission member 12 is increased, the separation speed of the first electric contact 121 and the second electric contact 122 is increased, the stay time of an electric arc generated in the separation process of the first electric contact 121 and the second electric contact 122 between the first electric contact and the second electric contact is shortened, the short-circuit breaking capacity of the circuit breaker is improved, and the service life of the circuit breaker is prolonged.

Meanwhile, since the distance from the first collision part 21a to the rotation axis of the rotation member 200 is smaller than the distance from the second collision part 21b to the rotation axis of the rotation member 200, the stroke of the second collision part 21b is larger than the stroke of the first collision part 21a, and therefore, the stroke of the third protrusion 11c generated by the collision of the second collision part 21b with the second protrusion 11b is larger than the stroke of the third protrusion 11c generated by the collision of the first collision part 21a with the first protrusion 11a, and only the first collision part 21a is provided with respect to the rotation member 200, in this embodiment, the provision of the second collision part 21b enables the third protrusion 11c to generate a larger movement. The opening distance between the first electric contact 121 and the second electric contact 122 is larger, and the breaking and current limiting effects of the circuit breaker are better.

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 first elastic member 14 acts on the movable contact 124, and the rotating shaft 1230 is disposed between the elastic force acting point of the first 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 first 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. 10), so as to separate the first electrical contact 121 and the second electrical contact 122.

In the case that the connecting rod 123 and the movable contact 124 are disposed on the second transmission member 12, when the third protrusion 11c collides with the second transmission member 12, the first stop surface 1231 disposed on the connecting rod 123 and the second stop surface 1241 disposed on the movable contact 124 are already contacted, that is, the connecting rod 123 and the movable contact 124 integrally rotate at this time, so that the movable contact 124 and the connecting rod 123 do not relatively rotate after the third protrusion 11c collides.

In a possible embodiment, the opening actuator 200 includes an operating device, so that the opening actuator 200 supports manual opening of a circuit breaker, which means that a component of the manually operated circuit breaker is opened, specifically, as shown in fig. 5, the opening actuator 200 further includes an operating device 16, the transmission part 13 is connected to the operating device 16, the operating device 16 includes an opening position and an opening position (as shown in fig. 5 and 11, the operating device 16 is in the opening position in fig. 5, and the operating device 16 is in the opening position in fig. 10), when the first abutting surface 110 and the second abutting surface 120 abut and the first electrical contact 121 and the second electrical contact 122 contact are in contact, the operating device 16 is in the opening position, it should be noted that, at this time, the first transmission piece 11 and the second transmission piece 12 are kept relatively stationary, due to the combined action of the force between the operating device 16 and the transmission part 13, the force between the first abutting surface 110 and the second abutting surface 120, the force between the first electrical contact 121 and the second electrical contact 122, and the elastic force of the first elastic member 14, at this time, the operating device 16 is also kept stationary relative to the first transmission member 11 and the second transmission member 12, so that the first electrical contact 121 and the second electrical contact 122 are kept in contact, and the operating device 16 is kept at the closing position. When the brake is required to be opened, the operating device 16 is operated to move the operating device 16 to the opening position, the transmission part 13 is driven to move in the process that the operating device 16 is moved to the opening position, and the second transmission piece 12 and the transmission part 13 move together, so that the first electric contact 121 and the second electric contact 122 are separated, and the opening is realized. When the opening is performed by operating the operating device 16, the first contact surface 110 and the second contact surface 120 maintain a contact state.

Specifically, as shown in fig. 13 (in fig. 13, a portion of the second transmission member 11 except the transmission portion 13 is hidden), the transmission portion 13 is connected to the operation device 16 through a connecting rod 136, two ends of the connecting rod 136 are rotatably connected to the transmission portion 13 and the operation device 16, a first hole for accommodating one end of the connecting rod can be disposed on the transmission portion 13, a second hole for accommodating the other end of the connecting rod can be disposed on the operation device 16, two ends of the connecting rod can rotate in the first hole and the second hole, respectively, during the operation of moving the operation device 16 to the opening position, the operation device 16 rotates around a fixed shaft 161, the connecting rod 136 moves along with the movement of the second hole to drive the transmission portion 13, and simultaneously, the rotation of the connecting rod 136 in the first hole and the second hole can prevent the operation device 16 from driving the transmission portion 13, which is produced during the operation of moving the operation device 16 to the opening position The card is dead.

Further, the opening actuator 200 provided in this embodiment further supports a closing function, and specifically, the closing function of the opening actuator 200 provided in this embodiment is realized by the operating device 16. In order to switch the circuit breaker from the open state to the closed state by operating the operating device 16, the operating device 16 is in the open position after the opening actuator 200 is opened. Specifically, when the opening operation is performed by operating the operating device 16, the operating device 16 is moved to the closing position, and when the opening operation is performed by the internal driving member 15, after the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state, the transmission portion 13 follows the second transmission member 12 to move the operating device 16 to the opening position.

In a possible implementation manner, in order to enable the operating device 16 to reach the opening position more quickly during opening, the opening actuator 200 further includes a second elastic member 17, an elastic force of the second elastic member 17 acts on the operating device 16, and the second elastic member 17 is used for assisting the operating device 16 to reach the opening position after the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state. Specifically, the second elastic member 17 may be a spring, an elastic sheet, or the like, and after the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaging state, the elastic direction of the second elastic member 17 is a direction close to the opening position, so that the operating device 16 receives the elastic force of the second elastic member 17 in addition to the pushing force of the transmission portion 13, so that the operating device 16 can reach the opening position more quickly, and at the same time, when the transmission portion 13 provides a smaller pushing force, the operating device 16 can be moved to the opening position, and the pushing force of the transmission portion 13 is obtained by the elastic force of the first elastic member 14, so that the first elastic member 14 can be designed to have a smaller elastic force, and the size can be reduced.

In an embodiment of the second elastic member 17, as shown in fig. 14, the operating device 16 rotates around a fixed shaft, the operating device 16 is provided with an elastic force acting surface 162, the elastic force of the second elastic member 17 acts on the elastic force acting surface 162, when the opening actuator 200 is in a closed state, the elastic force of the second elastic member 17, the acting force between the first abutting surface 110 and the second abutting surface 120, the elastic force of the first elastic member 14, and the acting force between the first electrical contact 121 and the second electrical contact 122 together keep the operating device 16, the first transmission member 11, and the second transmission member 12 balanced, the opening actuator 200 keeps the closed state, and when the first abutting surface 110 and the second abutting surface 120 are converted from the abutting state to the disengaged state, the operating device 16 is driven by the second transmission member 12 to rotate to the opening position, the elastic force of the second elastic member 17 always acts on the elastic force acting surface 162 to assist the operation device 16 to move to the opening position until the operation device 16 reaches the opening position, and after the operation device 16 reaches the opening position, as shown in fig. 14, the elastic force of the second elastic member 17 may further continuously act on the elastic force acting surface 162, so that the operation device 16 is maintained at the opening position. It is understood that, even when the operation device 16 is operated to open the brake, the elastic force of the second elastic member 17 always acts on the elastic force acting surface 162 to assist the operation device 16 to reach the brake opening position, so that the brake opening operation force of the operation device 16 can be reduced.

The opening actuator 200 includes a third 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 changed from the abutting state to the disengaged state, the elastic force of the third 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 third elastic element 18 is fixedly disposed, the third elastic element 18 may be fixed to the circuit breaker or the main shaft, and the third elastic element 18 may be a spring, an elastic sheet, or the like. Fig. 16 shows an embodiment when the third elastic member 18 is a spring, the elastic portion of the third elastic member 18 does not contact the first transmission member 11 when the first abutting surface 110 and the second abutting surface 120 abut, after 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 disengaged 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 third elastic member 18 after rotating to a certain angle, the rotation is limited, 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 third 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. 10 to 11, 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 device 16 can be operated to close the switch, when the switch is closed, the operating device 16 moves from the switch-off position to the switch-on position to drive the transmission part 13 to move, and the first transmission piece 11 rotates together with the second transmission piece 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 actuator 200 is restored to the switching-on state, that is, the switching-off actuator 200 maintains the balance until the operating device 16 is operated or the first transmission member 11 rotates, so that the balance of the switching-off actuator 200 is broken, and the switching-off operation is performed.

It can be seen that the integrated switching-off device in this embodiment includes the tripping device 100 and the switching-off actuator 200, and the switching-off actuator 200 is implemented by the rotating member 300 driving the switching-off actuator 200 after the tripping device 100 in the circuit breaker generates magnetic force to attract the rotating member 300. In the trip device 100 of the embodiment, the first trip device 101 and the second trip device 102 are integrated, so that the trip device 100 is more compact in size, and functions of short-circuit protection, overload protection, leakage protection, overvoltage protection, undervoltage protection, over-temperature protection, self-checking protection, control of opening and the like can be realized on the basis of not increasing parts. And can also realize the miniaturized characteristics of circuit breaker.

Based on the above-mentioned embodiment, the utility model provides a circuit breaker is still provided, the circuit breaker includes above-mentioned embodiment integral type separating brake device.

To sum up, the utility model discloses an integrated brake-separating device and a circuit breaker, wherein the integrated brake-separating device is applied to the circuit breaker and comprises a tripping device and a brake-separating executing mechanism which is matched with the tripping device to work; the trip device includes: the integrated brake separating device comprises a tripping device and a brake separating executing mechanism which is matched with the tripping device to work; the trip device includes: the first tripping device is used for controlling the opening actuating mechanism to execute opening operation when the circuit breaker is short-circuited or overloaded; the second tripping device is used for driving the opening actuating mechanism to execute opening operation when the circuit breaker has electric leakage, overvoltage and undervoltage faults and remotely controls the opening of the circuit breaker; the first tripping device and the second tripping device are arranged into an integrated structure. The utility model discloses the integrated integrative design of second trip gear and first trip gear, occupation space is littleer to realize functions such as short-circuit protection, overload protection, earth leakage protection, overvoltage protection, undervoltage protection, excess temperature protection, self-checking protection and control separating brake on the basis that the part does not increase.

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

1. The integrated brake separating device is applied to a circuit breaker and is characterized by comprising a tripping device and a brake separating executing mechanism matched with the tripping device; the trip device includes: the first tripping device is used for controlling the opening actuating mechanism to execute opening operation when the circuit breaker is short-circuited or overloaded; the second tripping device is used for driving the opening actuating mechanism to execute opening operation when the circuit breaker has electric leakage, overvoltage and undervoltage faults and remotely controls the opening of the circuit breaker; the first tripping device and the second tripping device are arranged into an integrated structure.

2. The integrated opening device according to claim 1, wherein the first trip device comprises: a framework disposed on the housing; the oil cup is arranged on the framework; the magnetic yoke is arranged on the oil cup; the electromagnetic oil damping release comprises an electromagnetic oil damping release body and a rotating body, wherein the electromagnetic oil damping release body is arranged on the framework, and the rotating body is arranged on the electromagnetic oil damping release body and is attracted by magnetic force.

3. The integrated opening device as claimed in claim 2, wherein a central hole is provided in the frame, and the oil cup is disposed in the central hole and connected to the yoke.

4. The integrated brake separating device according to claim 2, wherein the rotating member is disposed on a housing of the circuit breaker and is rotatably connected to the housing, one end of the rotating member is used for being attracted to the oil cup, and the other end of the rotating member is used for cooperating with the brake separating actuator to drive the brake separating actuator to perform the brake separating operation.

5. The integrated opening device according to claim 2, wherein the second trip device comprises: a skeleton disposed on the housing; the oil cup is arranged on the framework; the magnetic yoke is arranged on the oil cup; the winding is established coil winding and setting on the skeleton the one end of skeleton, through magnetic force to the rotation piece of coil winding actuation, coil winding with control module in the circuit breaker is connected.

6. The integrated opening device as claimed in claim 5, wherein a central hole is provided in the frame, and the oil cup is disposed in the central hole and connected to the yoke.

7. The integrated brake separating device according to claim 5, wherein the rotating member is disposed on a housing of the circuit breaker and is rotatably connected to the housing, one end of the rotating member is configured to be attracted to the coil winding, and the other end of the rotating member is configured to cooperate with the brake separating actuator to drive the brake separating actuator to perform the brake separating operation.

8. The integrated opening device according to claim 2 or 5, wherein when the first tripping device and the second tripping device are provided as an integrated structure, the bobbin, the oil cup, the yoke, and the rotating member in the first tripping device are shared with the bobbin, the yoke, and the rotating member in the second tripping device.

9. The integrated brake separating device of claim 5, wherein when the first and second tripping devices are configured as an integrated structure, the coil is disposed on one side of the coil winding, and the first and second tripping devices are arranged on the frame in a predetermined sequence.

10. A circuit breaker comprising an integrated opening device as claimed in any one of claims 1 to 9.