CN210223911U

CN210223911U - Tripping device and coil mechanism vertical separation type circuit breaker

Info

Publication number: CN210223911U
Application number: CN201921214014.8U
Authority: CN
Inventors: Zhongfu Huang; 黄中甫; Jie Ye; 叶杰; Yifan Ye; 叶益帆; Dingyou Ye; 叶定友; Linjian Qian; 钱林建
Original assignee: ZHEJIANG ZHONGYIHAO TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG ZHONGYIHAO TECHNOLOGY Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-03-31
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to a circuit breaker technical field specifically is a tripping device and coil mechanism disconnect-type circuit breaker from top to bottom, half shell and the right half shell in the left side, its characterized in that: the left half shell and the right half shell are connected through a plurality of shell rivets, mounting nuts are symmetrically arranged above the inner portions of the left half shell and the right half shell, a short handle is arranged between the two mounting nuts, a handle positioning stop block is arranged on one side of the bottom of the short handle, a tripping mechanism is connected to the bottom of the short handle, the bottom of the tripping mechanism is rotatably connected with the left half shell and the right half shell through a tripping pin shaft, a movable contact arm is arranged below the tripping pin shaft, a movable contact point is connected to one end of the movable contact arm, and a movable contact arm pin shaft at the other end of the movable contact arm is rotatably connected with the left half shell and the. In this tripping device and coil mechanism disconnect-type circuit breaker from top to bottom, each part can be convenient for assemble and dismantle, facilitates the use, and armature reset spring can play certain cushioning effect, avoids inside zero armature vibrations to cause the damage.

Description

Tripping device and coil mechanism vertical separation type circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a tripping device and coil mechanism disconnect-type circuit breaker from top to bottom.

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 for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current.

The existing circuit breaker is integrated, inconvenient to assemble and disassemble, large in size, inconvenient to carry and incapable of being installed in places with strict requirements for height, and the tripping mechanism and the coil mechanism are of square structures arranged in the left and right directions. In view of this, we propose a circuit breaker with a trip mechanism and a coil mechanism separated from each other.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tripping device and coil mechanism disconnect-type circuit breaker from top to bottom to current circuit breaker structure formula as an organic whole that proposes in solving above-mentioned background art, be not convenient for assemble and dismantle, tripping device and coil mechanism are the square structure of arranging about, and the volume is great, are not convenient for carry the scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a tripping device and coil mechanism disconnect-type circuit breaker from top to bottom, includes half shell on the left side and half shell on the right side, its characterized in that: the left half shell and the right half shell are connected through a plurality of shell rivets, mounting nuts are symmetrically arranged above the inner parts of the left half shell and the right half shell, a short handle is arranged between the two mounting nuts, a handle positioning stop block is arranged on one side of the bottom of the short handle, a tripping mechanism is connected to the bottom of the short handle, the bottom of the tripping mechanism is rotatably connected with the left half shell and the right half shell through a tripping pin shaft, a movable contact arm is arranged below the tripping pin shaft, one end of the movable contact arm is connected with a movable contact, the other end of the movable contact arm is rotatably connected with the left half shell and the right half shell through a movable contact arm pin shaft, a stationary contact is arranged at the bottom of the movable contact arm, one side of the movable contact arm is connected with a wiring terminal, an armature is arranged on the other side of the movable contact arm, a hydraulic oil cup is arranged below the armature, and a, an iron support is arranged at the bottom of the armature, and a load terminal is arranged on one side of the iron support.

Preferably, a movable contact arm main spring is arranged outside the movable contact arm pin shaft in a winding mode.

Preferably, the top outer sides of the left half shell and the right half shell are provided with sliding protective covers.

Preferably, one side of the movable contact arm is provided with a plurality of arc extinguishing pieces.

Preferably, an armature pin shaft is arranged above the armature, and an armature return spring is wound outside the armature pin shaft.

Preferably, a connection braid is connected to a top of the load terminal.

Preferably, the screws are symmetrically installed at the bottoms of the left half shell and the right half shell, and a plum-blossom washer is sleeved on each screw.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in this tripping device and coil mechanism disconnect-type circuit breaker from top to bottom, each part can be convenient for assemble and dismantle, and rectangular shape structure is convenient for install facilitates the use.

2. In the vertical separation type circuit breaker with the tripping mechanism and the coil mechanism, the armature reset spring arranged in the circuit breaker can play a certain buffering role, and the damage caused by the vibration of the internal zero armature is avoided.

3. In the circuit breaker with the tripping mechanism and the coil mechanism separated from each other, when current is overloaded and short-circuited, the armature is attracted under the action of magnetic force of a magnetic circuit and rotates rightwards to impact a tripping bolt, the tripping mechanism is opened, and the moving contact and the static contact are separated quickly to complete the circuit protection function.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a broken-away schematic view of the present invention;

fig. 3 is one of the closed structural schematic diagrams of the present invention;

fig. 4 is a second closed structural diagram of the present invention.

In the figure: 1. a left half shell; 2. a right half shell; 3. a sliding shield; 4. a short handle; 5. a handle positioning stop block; 6. mounting a nut; 7. a tripping mechanism; 8. an arc extinguishing sheet; 9. tripping the pin shaft; 10. a movable contact arm pin shaft; 11. a movable contact arm main spring; 12. a movable contact arm; 121. a movable contact; 13. a stationary contact; 14. a wiring terminal; 15. a housing rivet; 16. an armature return spring; 17. an armature pin; 18. an armature; 19. a hydraulic oil cup; 20. a coil; 21. an iron bracket; 22. connecting the braids; 23. a load terminal; 24. a screw; 25. a tulip washer; 26. and (4) tripping the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a circuit breaker with a tripping mechanism and a coil mechanism separated vertically is disclosed, as shown in figure 1, figure 2 and figure 3, comprising a left half shell 1 and a right half shell 2, the left half shell 1 and the right half shell 2 are connected through a plurality of shell rivets 15, mounting nuts 6 are symmetrically arranged above the inner parts of the left half shell 1 and the right half shell 2, a short handle 4 is arranged between the two mounting nuts 6, one side of the bottom of the short handle 4 is provided with a handle positioning stop block 5, the bottom of the short handle 4 is connected with a tripping mechanism 7, the bottom of the tripping mechanism 7 is rotatably connected with the left half shell 1 and the right half shell 2 through a tripping pin shaft 9, a movable contact arm 12 is arranged below the tripping pin shaft 9, one end of the movable contact arm 12 is connected with a movable contact 121, the other end of the movable contact arm pin shaft 10 of the movable contact arm 12 is rotatably connected with the left half shell 1 and the right half shell 2, the bottom of the movable contact arm 12, an armature 18 is arranged on the other side of the movable contact arm 12, a hydraulic oil cup 19 is arranged below the armature 18, a coil 20 is sleeved on the outer wall of the hydraulic oil cup 19, an iron support 21 is arranged at the bottom of the armature 18, and a load terminal 23 is arranged on one side of the iron support 21.

Specifically, a movable contact arm main spring 11 is arranged outside a movable contact arm pin shaft 10 in a winding mode, a sliding protective cover 3 is arranged on the outer side of the top of the left half shell 1 and the outer side of the top of the right half shell 2 and used for protecting a short handle 4, a plurality of arc extinguishing sheets 8 are arranged on one side of the movable contact arm 12, an armature pin shaft 17 is arranged above an armature 18, an armature reset spring 16 is arranged outside the armature pin shaft 17 in a winding mode, the armature 18 is convenient to reset, a certain buffering effect is achieved, and armature 18 is prevented from being damaged.

Further, the top of load terminal 23 is connected with and connects pigtail 22 for load terminal 23's connection, and the bottom symmetry of left half shell 1 and right half shell 2 installs screw 24, and the cover is equipped with plum blossom packing ring 25 on the screw 24, the installation and the dismantlement of left half shell 1 and right half shell 2 of being convenient for.

It should be noted that, as shown in fig. 4, in the circuit breaker with the trip mechanism and the coil mechanism separated from each other, when the current is overloaded and short-circuited, the armature 18 is attracted and rotated to the right under the action of the electromagnetic force of the magnetic circuit to impact the trip latch 26, so as to open the trip mechanism, and the moving and static contacts are separated quickly to complete the circuit protection function.

When the tripping mechanism and coil mechanism vertical separation type circuit breaker of the embodiment is used, as shown in fig. 2, when the short handle 4 is in an OFF state, the movable contact 121 is separated from the fixed contact 13 to ensure internal disconnection, and when the short handle 4 is in an ON state, the movable contact 121 is contacted with the fixed contact 13 to ensure that the inner wall is closed, and when the disconnection is needed, the housing rivet 15 is detached, and then all the components are sequentially detached.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tripping device and coil mechanism disconnect-type circuit breaker from top to bottom, includes half shell on the left side (1) and half shell on the right side (2), its characterized in that: the left half shell (1) and the right half shell (2) are connected through a plurality of shell rivets (15), mounting nuts (6) are symmetrically arranged above the inner parts of the left half shell (1) and the right half shell (2), a short handle (4) is arranged between the two mounting nuts (6), a handle positioning stop block (5) is arranged on one side of the bottom of the short handle (4), a tripping mechanism (7) is connected to the bottom of the short handle (4), the bottom of the tripping mechanism (7) is rotationally connected with the left half shell (1) and the right half shell (2) through a tripping pin shaft (9), a movable contact arm (12) is arranged below the tripping pin shaft (9), one end of the movable contact arm (12) is connected with a movable contact (121), and a movable contact arm pin shaft (10) at the other end of the movable contact arm (12) is rotationally connected with the left half shell (1) and the right half shell (2), the bottom of moving contact arm (12) is provided with stationary contact (13), one side of moving contact arm (12) is connected with binding post (14), the opposite side of moving contact arm (12) is provided with armature (18), the below of armature (18) is provided with hydraulic oil cup (19), the outer wall cover of hydraulic oil cup (19) is equipped with coil (20), the bottom of armature (18) is provided with indisputable support (21), one side of indisputable support (21) is provided with load terminal (23).

2. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: and a movable contact arm main spring (11) is wound outside the movable contact arm pin shaft (10).

3. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: the top outsides of the left half shell (1) and the right half shell (2) are provided with a sliding protective cover (3).

4. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: and a plurality of arc extinguishing sheets (8) are arranged on one side of the movable contact arm (12).

5. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: an armature pin shaft (17) is arranged above the armature (18), and an armature return spring (16) is wound outside the armature pin shaft (17).

6. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: and the top of the load terminal (23) is connected with a connecting braid (22).

7. The circuit breaker of claim 1, wherein the trip mechanism and the coil mechanism are separated from each other: screw (24) are installed to the bottom symmetry of half shell (1) on the left side and half shell (2) on the right side, the cover is equipped with plum blossom packing ring (25) on screw (24).