CN216528692U

CN216528692U - Executing device and circuit breaker

Info

Publication number: CN216528692U
Application number: CN202123447235.XU
Authority: CN
Inventors: 刘晓芝; 渠晓敏
Original assignee: Zhejiang Huakai Electric Co ltd
Current assignee: Zhejiang Huakai Electric Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-13
Anticipated expiration: 2031-12-30

Abstract

The application discloses executive device and circuit breaker relates to circuit breaker technical field, and executive device includes: the device comprises a supporting piece, a first moving contact and a second moving contact which are arranged on two sides of the supporting piece, a main shaft, a first torsion spring, a second torsion spring, a tripping and a lock catch. The first moving contact and the second moving contact are electrically coupled with each other; the main shaft can lead the first moving contact, the supporting piece and the second moving contact to be arranged together in a penetrating way; the first torsion spring and the second torsion spring are both arranged on the supporting piece, and the first torsion spring is respectively connected with the supporting piece and the first moving contact; the second torsional spring is respectively connected with the supporting piece and the second moving contact; the lock catch can be rotatably arranged between the support piece and the first moving contact; the jump buckle can be rotatably arranged on the supporting piece and used for driving the lock catch to rotate, and the lock catch can be interlocked with the jump buckle. Therefore, the N-pole on-first and off-last functions are achieved by arranging the two torsion springs and the two moving contacts, the first moving contact and the second moving contact can act independently, and the breaking capacity and the service life of the circuit breaker are improved.

Description

Executing device and circuit breaker

Technical Field

The application relates to the technical field of circuit breakers, in particular to an executing device and a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breaker can be used for distributing electric energy, protecting a power supply circuit, a motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur. Furthermore, no parts need to be changed after breaking the fault current. Has been widely used.

In the existing miniature circuit breaker, the actuating device generally comprises components such as a jump buckle, a lock catch, a movable contact and the like. However, the executing device often has only one moving contact, and the circuit breaker with a single moving contact has poor performance in the aspects of breaking capacity, service life and the like.

SUMMERY OF THE UTILITY MODEL

The application provides an actuating device and a circuit breaker, which are provided with two moving contacts, realize the function of first on and then off of an N pole and facilitate automatic assembly.

A first aspect of an embodiment of the present application provides an execution apparatus, including: the application discloses executive device and circuit breaker relates to circuit breaker technical field, and executive device includes: the support piece, locate first moving contact and the second moving contact of support piece both sides respectively, main shaft, first torsional spring, second torsional spring, jump and detain and the hasp. Wherein the first movable contact and the second movable contact are electrically coupled to each other; the main shaft is provided with a mounting through hole, the first moving contact is provided with a first through hole opposite to the mounting through hole, and the second moving contact is provided with a second through hole opposite to the mounting through hole; the main shaft can penetrate through the first moving contact, the supporting piece and the second moving contact together through the first through hole, the mounting through hole and the second through hole; the first torsion spring and the second torsion spring are both arranged on the supporting piece, and the first torsion spring is respectively connected with the supporting piece and the first moving contact; the second torsion spring is respectively connected with the supporting piece and the second moving contact; the lock catch is rotatably arranged between the supporting piece and the first moving contact; the jump buckle can be rotatably arranged on the supporting piece and used for driving the lock catch to rotate, and the lock catch can be interlocked with the jump buckle.

In one embodiment, the support member is provided with a first torsion spring column and a second torsion spring column which are symmetrical to each other; the first torsion spring is sleeved on the first torsion spring column, and the second torsion spring is sleeved on the second torsion spring column.

In one embodiment, the execution apparatus further includes: the lock catch accessory is connected with the lock catch, and the supporting piece is arranged between the lock catch accessory and the lock catch.

In one embodiment, the execution apparatus further includes: the first moving contact can be electrically coupled with the L pole connecting rod in a disconnection mode; and the second moving contact can be electrically coupled with the N pole connecting rod in a disconnection mode.

In one embodiment, a first static silver contact is disposed on the L-pole connecting rod, and the first moving contact can be electrically coupled to the L-pole connecting rod in a manner of being separated from the ground through the first static silver contact; and a second static silver contact is arranged on the N pole connecting rod, and the second moving contact can be electrically coupled with the N pole connecting rod in a manner of being separated from the ground through the second static silver contact.

In an embodiment, when the first moving contact is separated from the L-pole connecting rod and the second moving contact is separated from the N-pole connecting rod, a distance between the second moving contact and the second static silver contact is smaller than a distance between the first moving contact and the first static silver contact.

In an embodiment, when the first moving contact is separated from the L-pole connecting rod and the second moving contact is separated from the N-pole connecting rod, a distance between the second moving contact and the second static silver contact is less than 0.5 mm.

In an embodiment, a solenoid is disposed on the L-pole connecting rod, and a movable striker is disposed in the solenoid and can strike the latch.

In one embodiment, the execution device further comprises: the connecting rod is arranged on the jump buckle; and the handle is arranged on the connecting rod.

A second aspect of embodiments of the present application provides a circuit breaker, comprising: the device comprises a first shell and a second shell which are connected with each other, wherein an accommodating cavity is formed between the first shell and the second shell; and the actuating device provided in the first aspect and any embodiment thereof is disposed in the accommodating cavity.

Compared with the prior art, the method has the following beneficial effects:

through having set up two torsional springs and two moving contacts, realize that N utmost point closes the function after to break to convenient automatic assembly. And the first torsional spring which is respectively connected with the supporting piece and the first moving contact and the second torsional spring which is respectively connected with the supporting piece and the second moving contact enable the actions of the first moving contact and the second moving contact to be mutually independent, and the breaking capacity and the service life of the circuit breaker are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an actuator according to an embodiment of the present disclosure;

fig. 2 is an exploded view of an actuator according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an actuator according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a circuit breaker according to an embodiment of the present application.

Icon:

1-an execution device; 100-a support; 101-mounting a through hole; 102-a first cylinder; 103-a second cylinder; 104-a first torsion spring post; 110-a first movable contact; 111-a first via; 112-a first torsion spring; 120-a second movable contact; 121-a second via; 122-a second torsion spring; 130-a main shaft; 140-locking; 141-third via holes; 142-assembly holes; 150-jump buckle; 151-fourth via; 152-connection hole; 160-snap attachment; 161-assembling the column; 170-L pole connecting rods; 171-a first stationary silver contact; 180-N pole connecting rod; 190-a solenoid; 191-a striker; 192-a connecting rod; 193-handle.

2-a circuit breaker; 201-a first housing; 202-second housing.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an execution device 1 according to an embodiment of the present application; fig. 2 is an exploded schematic view of an actuator 1 according to an embodiment of the present disclosure. In the present embodiment, the actuator 1 includes: the supporting member 100 has a first movable contact 110 and a second movable contact 120 electrically coupled to each other and disposed on two sides of the supporting member 100.

The execution device 1 includes: the main shaft 130 is disposed through the support member 100, the first movable contact 110 and the second movable contact 120, the first torsion spring 112 is sleeved on the support member 100, the second torsion spring 122 is sleeved on the support member 100, the latch 140 is rotatably disposed between the support member 100 and the first movable contact 110, and the jumper 150 is rotatably disposed on the support member 100.

Specifically, the support 100 is provided with an installation through hole 101, the first movable contact 110 is provided with a first through hole 111 corresponding to the installation through hole 101, the second movable contact 120 is provided with a second through hole 121 corresponding to the installation through hole 101, and the main shaft 130 passes through the first through hole 111, the installation through hole 101 and the second through hole 121, so that the first movable contact 110, the support 100 and the second movable contact 120 are arranged together in a penetrating manner, and the first movable contact 110 and the second movable contact 120 can rotate relative to the main shaft 130; the two ends of the first torsion spring 112 are respectively connected to the supporting member 100 and the first movable contact 110, and the two ends of the second torsion spring 122 are respectively connected to the supporting member 100 and the second movable contact 120.

The support member 100 is further provided with a first cylinder 102, the lock 140 is provided with a third through hole 141 corresponding to the first cylinder 102, the lock 140 can be rotatably disposed on the support member 100 through the cooperation between the third through hole 141 and the first cylinder 102, and the lock 140 can drive the first movable contact 110 to rotate and can drive the second movable contact 120 to rotate; the supporting member 100 is further provided with a second cylinder 103, and the jump buckle 150 is provided with a fourth through hole 151 corresponding to the second cylinder 103. The jump ring 150 is rotatably disposed on the supporting member 100 through the cooperation between the fourth through hole 151 and the second cylinder 103, and is used for driving the lock 140 to rotate and interlocking with the lock 140.

In this embodiment, the support member 100 is provided with a first torsion spring column 104 and a second torsion spring column (not shown in the figure) which are symmetrical to each other; the first torsion spring column 104 is disposed on one side of the support member 100, the second torsion spring column is disposed on the other side of the support member 100, the first torsion spring sleeve 112 is disposed on the first torsion spring column 104, and the second torsion spring 122 is sleeved on the second torsion spring column.

Therefore, in the present application, through the two independent first torsion springs 112 and the two independent second torsion springs 122, the torsion forces required by the rotation of the first movable contact 110 and the second movable contact 120 can be set respectively, so that the actions of the first movable contact 110 and the second movable contact 120 are relatively independent, and the breaking capacity and the service life of the actuator 1 are improved.

In one embodiment, the actuator 1 further includes a latch accessory 160 connected to the latch 140, the latch 140 is provided with a mounting hole 142, the latch accessory 160 is provided with a mounting post 161, the latch 140 and the latch accessory 160 can be coupled to each other through the mounting hole 142 and the mounting post 161, so that the latch 140 and the latch accessory 160 are connected to each other, and the support 100 is disposed between the latch 140 and the latch accessory 160.

Please refer to fig. 3, which is a schematic structural diagram of an execution device according to an embodiment of the present application. In this embodiment, the actuating device 1 further includes an L-pole connecting rod 170 and an N-pole connecting rod 180, the L-pole connecting rod 170 can be connected to a live wire in an electrical network, the N-pole connecting rod 180 can be connected to a neutral wire in the electrical network, and the actuating device 1 can pass through the L-pole connecting rod 170, the N-pole connecting rod 180, and the first movable contact 110 and the second movable contact 120 electrically coupled to each other, so as to form a current loop in the electrical network. Moreover, the first movable contact 110 can be electrically coupled to the L-pole connecting rod 170 in a disengaged manner; the second movable contact 120 can be electrically coupled to the N-pole connecting rod 180 in a disengaging manner. Specifically, the L-pole connecting rod 170 is further provided with a first static silver contact 171, and the first movable contact 110 can be electrically coupled to the L-pole connecting rod 170 in a disengaging manner through the first static silver contact 171; the N-pole connecting rod 180 is provided with a second static silver contact (not shown), and the second movable contact 120 can be electrically coupled to the N-pole connecting rod 180 in a manner of being separated from the ground through the second static silver contact. The static silver contact is a silver alloy and is used for preventing the moving contact and the connecting rod from being adhered due to overlarge current.

In one embodiment, after the first movable contact 110 is separated from the L-pole connecting rod 170 and the second movable contact 120 is separated from the N-pole connecting rod 180, a distance between the second movable contact 120 and a second static silver contact (not shown) is smaller than a distance between the first movable contact 110 and the first static silver contact 171.

In one embodiment, after the first movable contact 110 is separated from the L-pole connecting rod 170 and the second movable contact 120 is separated from the N-pole connecting rod 180, a distance between the second movable contact 120 and the second static silver contact (not shown in the figure) is less than 0.5 mm, and a torque required for pushing the second torsion spring 122 to act is greater than a torque required for pushing the first torsion spring 112 to act, so that a force for pushing the second movable contact 120 to act is greater than a force for pushing the first torsion spring 112 to act by 1.5N.

Therefore, in the present application, by providing the second movable contact 120 relatively close to the static silver contact, the second movable contact 120 is closed earlier relative to the first movable contact 110 when the switch is closed; by setting the force required to be applied when the second movable contact 120 acts to be greater than the force required to be applied when the first movable contact 110 acts, the second movable contact 120 is disconnected behind the first movable contact 110 when the brake is opened. Through setting up the second moving contact 120 that closes first and break and electric property coupling in the zero line, realize the function that the N utmost point closed first promptly for actuating device 1 is safe and reliable more in using the actual process, and can show good performance in breaking test, and convenient automatic assembly.

In one embodiment, the L-pole link 170 has a coil 190, and the coil 190 has a movable striker 191 disposed therein, the striker 191 being capable of striking the latch 140.

In one embodiment, the actuator 1 further comprises a linkage 192 and a handle 193. Wherein, the connecting rod 192 is disposed in the connecting hole 152 of the jump buckle 150, and can be used to drive the jump buckle 150 to rotate; a handle 193 is disposed on the linkage 192 for driving the linkage 192 to rotate.

In a switching process, the handle 193 is pushed to drive the connecting rod 192, the connecting rod 192 rotates to rotate the trip buckle 150, the trip buckle 150 rotates to enable the lock catch 140 to rotate relative to the main shaft 130 and the trip buckle 150 and the lock catch 140 are locked with each other after acting, the lock catch 140 drives the first movable contact 110 and the second movable contact 120 to rotate after acting, because the distance between the second movable contact 120 and the static silver contact is shorter relative to the first movable contact 110, the second movable contact 120 is electrically coupled to the N-pole connecting rod 180 so as to be electrically coupled to a zero line, and then the first movable contact 110 is electrically coupled to the L-pole connecting rod 170 so as to be electrically coupled to a live line, and a current loop is closed. At this time, the first torsion spring 112 and the second torsion spring 122 are in a twisted state.

In a tripping process, the solenoid 190 generates a magnetic force enough to push the striker 191 due to an excessive current therein, the striker 191 moves in the solenoid 190 and strikes the latch 140, the latch 140 is struck and is unlocked from the trip 150, so that the first torsion spring 112 rebounds to drive the first movable contact 110 to separate from the L-pole connecting rod 170, and then the second torsion spring 122 rebounds to drive the second movable contact 120 to separate from the N-pole connecting rod 180. At this time, the jumper 150 rotates to rotate the link 192, so that the handle 193 rotates.

Please refer to fig. 4, which is a schematic structural diagram of a circuit breaker 2 according to an embodiment of the present application. In the present embodiment, the circuit breaker 2 includes a first case 201 and a second case 202 connected to each other, and an accommodation chamber is formed between the first case 201 and the second case 202. The actuating device 1 in any one of the above embodiments is also included, and the actuating device 1 is arranged in the accommodating cavity.

In the application, the total width of the circuit breaker 2 may be 18mm, and when the circuit breaker is automatically installed, the main shaft 130 is installed in the accommodating cavity first, and the second movable contact 120 is installed on the main shaft 130 and is marked as a first layer; the support member 100 is preloaded with the second torsion spring 122 and the latch attachment 160 and is referenced as a second layer; the catch 140 and the first torsion spring 112 are denoted as a third layer; the second movable contact 120 is denoted as a fourth layer. The circuit breaker 2 designed in this way is more convenient for the laminated automatic installation.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An execution apparatus, comprising:

the supporting piece is provided with a mounting through hole; a first moving contact and a second moving contact which are electrically coupled with each other are respectively arranged on two sides of the supporting piece, a first through hole opposite to the installation through hole is formed in the first moving contact, and a second through hole opposite to the installation through hole is formed in the second moving contact;

the main shaft penetrates through the first moving contact, the supporting piece and the second moving contact through the first through hole, the mounting through hole and the second through hole;

the first torsional spring is sleeved on the supporting piece, and two ends of the first torsional spring are respectively connected with the supporting piece and the first moving contact;

the second torsional spring is sleeved on the supporting piece, and two ends of the second torsional spring are respectively connected with the supporting piece and the second moving contact;

the lock catch is rotatably arranged between the support piece and the first moving contact, is used for driving the first moving contact to rotate, and can drive the second moving contact to rotate; and the number of the first and second groups,

the jump buckle can be rotatably arranged on the supporting piece and used for driving the lock catch to rotate, and the lock catch can be interlocked with the jump buckle.

2. The execution device of claim 1,

the support member is provided with a first torsion spring column and a second torsion spring column which are symmetrical to each other, the first torsion spring column is arranged on one side of the support member, and the second torsion spring column is arranged on the other side of the support member;

the first torsion spring is sleeved on the first torsion spring column, and the second torsion spring is sleeved on the second torsion spring column.

3. The execution device of claim 1, further comprising:

the lock catch accessory is connected with the lock catch, and the supporting piece is arranged between the lock catch accessory and the lock catch.

4. The executive device of claim 1, further comprising:

the first moving contact can be electrically coupled with the L pole connecting rod in a disconnection mode; and the number of the first and second groups,

and the second moving contact can be electrically coupled to the N pole connecting rod in a disconnection mode.

5. The execution device of claim 4,

the L pole connecting rod is provided with a first static silver contact, and the first moving contact can be electrically coupled with the L pole connecting rod in a manner of being separated from the ground through the first static silver contact; and the number of the first and second groups,

and a second static silver contact is arranged on the N pole connecting rod, and the second moving contact can be electrically coupled with the N pole connecting rod in a manner of being separated from the ground through the second static silver contact.

6. The actuator according to claim 5, wherein after the first movable contact is separated from the L-pole connecting rod and the second movable contact is separated from the N-pole connecting rod, a distance between the second movable contact and the second stationary silver contact is smaller than a distance between the first movable contact and the first stationary silver contact.

7. The actuator according to claim 6, wherein after the first movable contact is separated from the L-pole connecting rod and the second movable contact is separated from the N-pole connecting rod, a distance between the second movable contact and the second stationary silver contact is less than 0.5 mm from the first movable contact to the first stationary silver contact.

8. The actuator according to claim 4, wherein a solenoid is provided on the L-pole link, and a movable striker is provided in the solenoid, and the striker can strike the latch.

9. The execution device of claim 1, further comprising:

the connecting rod is arranged on the jump buckle; and the number of the first and second groups,

the handle is arranged on the connecting rod.

10. A circuit breaker, comprising:

the device comprises a first shell and a second shell which are connected with each other, wherein an accommodating cavity is formed between the first shell and the second shell; and the number of the first and second groups,

the actuator of any of claims 1-9, disposed within the containment chamber.