CN220456317U

CN220456317U - Auxiliary switching mechanism of circuit breaker

Info

Publication number: CN220456317U
Application number: CN202321554569.3U
Authority: CN
Inventors: 倪熙
Original assignee: Ningbo Riyang Electronics Co ltd
Current assignee: Ningbo Riyang Electronics Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2024-02-06
Anticipated expiration: 2033-06-19

Abstract

The utility model relates to an auxiliary switch mechanism of a circuit breaker, which aims at solving the technical problems that the existing risk and the damaged auxiliary switch are replaced in the current detection process, the shell of the circuit breaker main body needs to be detached firstly, and the replacement of the internal connecting mechanism with the auxiliary switch is complicated.

Description

Auxiliary switching mechanism of circuit breaker

Technical Field

The utility model relates to the technical field of breaker accessories, in particular to an auxiliary switching mechanism of a breaker.

Background

The auxiliary switch mechanism is a mechanical structural component for controlling the state of a breaker in an electric power system, and is used as the opening, closing, signal control and interlocking protection functions of a secondary control loop in electric power equipment, and the auxiliary switch belongs to one of auxiliary equipment of the breaker; the auxiliary switch belongs to an auxiliary device part of the breaker, and is generally arranged in the breaker main body and connected with other equipment through a lead wire; in the detection process, the auxiliary switch which is at risk and damaged is replaced, the main body shell of the circuit breaker needs to be detached firstly, and the replacement of the connecting mechanism between the main body shell and the circuit breaker is complicated.

In view of this, we propose an auxiliary switching mechanism for a circuit breaker.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, adapt to the actual needs, and provide an auxiliary switch mechanism of a circuit breaker so as to solve the technical problems that the existing risk and the damaged auxiliary switch are replaced in the current detection process, the main body shell of the circuit breaker needs to be detached firstly, and the replacement of the internal connection mechanism of the circuit breaker is complicated.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the utility model provides an auxiliary switch mechanism of circuit breaker, includes that the inside side inner wall of shell is equipped with the support, fixed connection circuit breaker main part on the support, circuit breaker main part fixed connection auxiliary valve, auxiliary valve fixed connection rotary switch, the shell top is equipped with heat dissipation mechanism.

Preferably, the shell comprises a base, a frame is fixedly connected to the top of the base, one end of a hinged support is fixedly connected to the frame, the other end of the hinged support is rotationally connected with a movable plate, a rotary switch base is arranged on the inner wall of the movable plate, a handle is arranged on the outer side of the movable plate, a locking block is fixedly connected to the handle, and a heat dissipation opening is formed in one side of the frame and is fixedly connected with a dust cover.

Preferably, the rotary switch comprises a heat radiation cover, the heat radiation cover comprises a hanging ear and a round heat radiation plate, the heat radiation cover is fixedly connected with a shell, a rotary support is arranged inside the shell and is fixedly connected with the shell, the rotary support is rotationally connected with a locking mechanism, and the locking mechanism is rotationally connected with a rotary touch mechanism.

Preferably, the locking mechanism comprises a rotary button, one end of a locking block is fixedly connected inside the rotary button, the other end of the locking block is polygonal, a first spring is arranged inside the rotary button, one end of the spring is fixedly connected with a rotary support, and a rotary touch mechanism is arranged inside the rotary support.

Preferably, the rotary touch mechanism comprises a transmission shaft, one end of the transmission shaft is provided with a polygonal groove, the transmission shaft is rotationally connected with a normally closed link point, the normally closed link point is fixedly connected with a normally open contact base, the normally open contact base is provided with a plurality of connecting column grooves, the connecting column grooves are provided with connecting columns, the outer sides of the connecting columns are provided with second springs, and the normally open contact base is provided with a plurality of normally open contacts.

Preferably, the shell is cylindrical, two ends are open ends, one end of the shell is provided with a limiting plate, the other end of the shell is provided with a shell bottom, and the shell bottom is fixedly connected with the rotating support.

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

1. according to the utility model, the prior art is improved, the movable plate is connected with the shell, the movable plate is provided with the rotary switch base, the rotary switch base is fixedly connected with the rotary switch, the fixed bracket in the shell is connected with the breaker main body, the side surface of the shell is connected with the auxiliary valve, the auxiliary valve is connected with one end of the breaker main body, and the other end of the auxiliary valve is connected with the rotary switch, so that the auxiliary switch can be installed or replaced without disassembling the breaker main body, and the connection is simple.

2. The utility model improves the prior art, and effectively avoids the equipment shutdown caused by manual misoperation by rotating the locking mechanism inside the switch.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic diagram of a cross-sectional structure of a rotary switch according to the present utility model;

FIG. 4 is an exploded view of the rotary switch of the present utility model;

in the figure: 1. a housing; 2. a bracket; 3. a breaker main body; 4. an auxiliary valve; 5. a rotary switch; 6. a heat dissipation mechanism; 101. a base; 102. a frame; 103. a hinged support; 104. a movable plate; 105. a switch base; 106. a handle; 107. a locking piece; 108. a heat radiation port; 109. a dust cover;

501. a heat dissipation cover; 502. a housing; 503. a rotating bracket; 504. a locking mechanism; 505. rotating the touch control mechanism; 506. a limiting plate; 507. a shell bottom; 50101. ear hanging; 50102. a circular heat dissipation plate; 50401. rotating the button; 50402. a locking block; 50403. a first spring; 50501. a transmission shaft; 50502. normally closed link points; 50503. a normally open contact base; 50504. a connecting column groove; 50505. a connecting column; 50506. a second spring; 50507. and a normally open contact.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

example 1: an auxiliary switching mechanism of a circuit breaker, see fig. 1 to 4, comprising a housing 1, which is an electrical equipment protection housing, wherein the inner wall of the inner side surface is provided with a bracket 2, and the bracket is fixedly connected with a circuit breaker main body 3; the breaker body 3 is a key component in the power system for breaking the circuit in the event of an overload, short circuit or the like abnormality, protecting the electrical equipment from damage. The breaker main body 3 is fixedly connected with the auxiliary valve 4, and the auxiliary valve 4 is used for controlling the operation of the breaker main body 3 so as to realize the control and the protection of a circuit; the auxiliary valve 4 is fixedly connected with a rotary switch 5, and the rotary switch 5 is a tool for controlling and adjusting the on-off state of the circuit and other related functions. The utility model improves the prior art, the top of the shell 1 is also provided with a heat dissipation mechanism 6 for dissipating heat generated when the electric equipment operates, so as to keep the working temperature of the electric equipment within a safe range and avoid accidents such as equipment failure or fire disaster caused by overheating; through fly leaf and shell connection, offered the rotation switch base on the fly leaf, at rotation switch base fixed connection rotation switch, the inside fixed bolster of shell is connected the circuit breaker main part, and auxiliary valve is connected to the side, and circuit breaker main part one end is connected to the auxiliary valve, and rotation switch is connected to the auxiliary valve other end to the realization need not to dismantle the circuit breaker main part alright install or change auxiliary switch and make its connection simple.

Specifically, the housing 1 is a housing for protecting electrical equipment, and includes a base 101, a frame 102, a hinge support 103, a movable plate 104, a rotary switch base 105, a handle 106, a lock block 107, a heat dissipation port 108, a dust cover 109, and the like.

The base 101 is a basic part of the housing, and the top is fixedly connected with the frame 102. The frame 102 is fixedly connected with the hinge support 103, wherein the hinge support 103 can enable the shell to be opened or closed through a hinge and other connection modes. The movable plate 104 is connected to the other end of the hinge support 103 by a rotary connection, and can be rotated to an open or closed position. The movable plate 104 is provided with a rotary switch base 105 on the inner wall for mounting and fixing the rotary switch 5. A handle 106 is provided on the outside of the movable plate 104 to facilitate the opening and closing of the housing. The handle 106 is fixedly connected to the locking piece 107 for sealing the housing in the closed state and restricting the opening of the housing. A heat dissipation port 108 is arranged on one side of the frame 102, and a dust cover 109 is fixedly connected to prevent dust and sundries from entering the heat dissipation port 108, and prevent personnel from touching by mistake.

The components are interdependent and closely matched to form a shell which can protect electrical equipment and is convenient to use. Before installation, it is necessary to check whether the parts are firmly connected, ensuring the integrity of the whole housing. In operation, the dust cover 109 needs to be checked to ensure the smoothness of the heat dissipation port 108, so as to ensure the use effect and the safety performance of the heat dissipation structure.

Further, the rotary switch 5 is a mechanical switch for controlling and adjusting an electric device, and includes a heat dissipation cover 501, a housing 502, a rotating bracket 503, a locking mechanism 504, a rotary touch mechanism 505, and the like.

The heat dissipation cover 501 is composed of a hanging lug 50101 and a round heat dissipation plate 50102, plays a role of heat dissipation, and is fixedly connected with the housing 502. The housing 502 is internally provided with a rotary bracket 503, and the rotary bracket 503 is fixedly connected with the housing 502) through a socket joint, a clamping joint and the like. The rotating bracket 503 is rotatably connected with the locking mechanism 504, and is used for controlling the state of the switch, and is usually realized by a gear, a cam and other structures; locking mechanism 504 is in turn rotatably coupled to rotary touch mechanism 505 to complete the switching and adjustment of the circuit through mechanical contact.

The precise design and assembly of the various components of the rotary switch 5 ensures the sensitivity and reliability of the switch. In the use, need keep the switch dry, clean, avoid receiving vibrations and direct exposure in sunshine to prolong its life and guarantee the accuracy of switch.

Still further, locking mechanism 504 is an important component in rotary switch 5 for controlling the stability and accuracy of the switching state of rotary switch 5.

Locking mechanism 504 includes a rotation button 50401, a lock block 50402, and a first spring 50403. The rotary button 50401 is fixedly connected to one end of the locking block 50402, and the other end is polygonal. The rotary button 50401 is further provided with a first spring 50403 inside, one end of the spring 50403 is fixedly connected with the rotary support 503, and the rotary support 503 is provided with a rotary touch mechanism 505 inside.

When the rotary touch mechanism 505 of the rotary switch 5 is rotated to a specific position, it contacts the polygon on the lock block 50402, so that the rotary button 50401 is compressed and bounces downward, causing the lock block 50402 to be snapped into the convex structure inside the rotary button 50401, thereby stably maintaining the state of the rotary switch 5. At this time, the first spring 50403 compresses and stores energy to provide a pushing force when it is required to restore the initial state.

The design and manufacture of locking mechanism 504 needs to be accurate and reliable to ensure the performance and stability of rotary switch 5. During use, it is necessary to periodically check the state and operational correctness of locking mechanism 504 to ensure high quality use of rotary switch 5.

It should be noted that the rotary touch mechanism 505 is one of core components in the rotary switch 5, and is used for controlling the opening and closing of the circuit and the state transition. It mainly includes a drive shaft 50501, a normally closed link 50502, a normally open contact base 50503, a recess 50504, a connecting post 50505, a second spring 50506, and a normally open contact 50507.

The drive shaft 50501 is a main shaft of the rotary touch mechanism 505, one end of which is provided with a polygonal groove for transmitting a rotational force, and the other end of which is connected to the locking mechanism 504 through a rotation bracket 503. The normally closed link 50502 is rotatably connected to the drive shaft 50501 and fixedly connected to the normally open contact mount 50503. A plurality of connecting post grooves 50504 are formed in the normally open contact base 50503, connecting posts 50505 are arranged in each connecting post groove, and second springs 50506 are arranged outside the connecting posts 50505 and used for guaranteeing the good performance of contact and rebound. Meanwhile, a plurality of normally open contacts 50507 are further arranged on the normally open contact base 50503 and used for controlling the open and close states of the circuit.

When the rotary switch 5 rotates to a specific position, the rotary bracket 503 drives the locking mechanism 504 to be linked with the rotary touch mechanism 505, so that the polygonal groove inside the transmission shaft 50501 contacts with the normally closed link point 50502, and the connection post 50505 and the normally open contact 50507 on the normally open contact base 50503 are subjected to opening and closing change through the transmission of rotation force, so that the open-circuit and closed-circuit state conversion of a circuit is realized. At the same time, the second spring 50506 compresses the connecting post 50505, ensuring reliable contact of the normally open contact 50507.

The design and manufacture of the rotary touch mechanism 505 needs to be accurate and reliable to ensure the performance and stability of the rotary switch 5. During use, it is necessary to periodically check the state and operational correctness of the rotary touch mechanism 505, ensuring high quality use of the rotary switch 5.

Notably, the housing 502 is an important component in the rotary switch 5, which is of cylindrical design and is open at both ends. At one end of the housing 502, a limiting plate 506 is provided, and at the other end, a housing bottom 507 is provided, and the housing bottom 507 is fixedly connected to the rotating bracket 503.

The cylindrical design of housing 502 allows for a larger receiving space to accommodate more internal components and parts, such as rotating touch mechanism 505, locking mechanism 504, etc., as well as connection wires and other electrical components. The open design in both ends is convenient for the installation and maintenance of the internal components.

At one end of the housing 502, a limiting plate 506 is further provided, which is a mechanism for limiting the rotation angle, and it is possible to determine the rotation angle, the rotation direction and the rotation range of the rotation switch 5 by designing the position, the shape, the number, etc. of the limiting plates. Through limiting plate 506, can guarantee that rotary switch 5 can not surpass the angle scope of settlement when using to avoid the equipment damage scheduling problem that causes because of excessive rotation.

At the other end of the housing 502, a housing bottom 507 is provided, the housing bottom 507 being fixedly connected to the swivel bracket 503, which may be designed and manufactured to ensure a stable connection between the housing 502 and the swivel bracket 503. The housing bottom 507 is fixedly connected to the rotary bracket 503 such that the rotary bracket 503 may be fixedly mounted to the housing 502, thereby providing a strong support for the normal operation of the rotary switch 5.

In summary, the housing 502 has an important role in the rotary switch 5, and the cylindrical design and the structure with two open ends, and the design of the limiting plate 506 and the housing bottom 507 are all for ensuring the stability, reliability and high efficiency of the rotary switch 5.

The embodiments of the present utility model are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present utility model.

Claims

1. An auxiliary switching mechanism of a circuit breaker, comprising: the circuit breaker comprises a shell (1), wherein a support (2) is arranged on the inner wall of the side face of the interior of the shell (1), a circuit breaker main body (3) is fixedly connected to the support (2), an auxiliary valve (4) is fixedly connected to the circuit breaker main body (3), a rotary switch (5) is fixedly connected to the auxiliary valve (4), and a heat dissipation mechanism (6) is arranged at the top of the shell (1).

2. The auxiliary switching mechanism of a circuit breaker according to claim 1, wherein the housing (1) comprises a base (101), a frame (102) is fixedly connected to the top of the base (101), the frame (102) is fixedly connected to one end of a hinged support (103), the other end of the hinged support (103) is rotatably connected with a movable plate (104), a rotary opening Guan De (105) is arranged on the inner wall of the movable plate (104), a handle (106) is arranged on the outer side of the movable plate (104), the handle (106) is fixedly connected with a locking block (107), a heat dissipation opening (108) is formed in one side of the frame (102), and the heat dissipation opening (108) is fixedly connected with a dust cover (109).

3. The auxiliary switching mechanism of a circuit breaker according to claim 1, wherein the rotary switch (5) comprises a heat dissipation cover (501), the heat dissipation cover (501) is composed of a hanging lug (50101) and a round heat dissipation plate (50102), the heat dissipation cover (501) is fixedly connected with a shell (502), a rotary bracket (503) is arranged inside the shell (502), the rotary bracket (503) is fixedly connected with the shell (502), the rotary bracket (503) is rotationally connected with a locking mechanism (504), and the locking mechanism (504) is rotationally connected with a rotary touch mechanism (505).

4. An auxiliary switching mechanism of a circuit breaker according to claim 3, wherein the locking mechanism (504) comprises a rotary button (50401), one end of a locking block (50402) is fixedly connected to the inside of the rotary button (50401), the other end of the locking block (50402) is polygonal, a first spring (50403) is arranged inside the rotary button (50401), one end of the first spring (50403) is fixedly connected with a rotary bracket (503), and a rotary touch mechanism (505) is arranged in the rotary bracket (503).

5. The auxiliary switching mechanism of a circuit breaker according to claim 4, wherein the rotary touch mechanism (505) comprises a transmission shaft (50501), one end of the transmission shaft (50501) is provided with a polygonal groove, the transmission shaft (50501) is rotationally connected with a normally-closed linkage point (50502), the normally-closed linkage point (50502) is fixedly connected with a normally-open contact base (50503), the normally-open contact base (50503) is provided with a plurality of connecting column grooves (50504), connecting columns (50505) are arranged in the connecting column grooves (50504), the outer sides of the connecting columns (50505) are provided with second springs (50506), and the normally-open contact base (50503) is provided with a plurality of normally-open contacts (50507).

6. An auxiliary switching mechanism of a circuit breaker according to claim 3, wherein the housing (502) is cylindrical, two ends are open ends, one end of the housing (502) is provided with a limiting plate (506), the other end of the housing (502) is provided with a housing bottom (507), and the housing bottom (507) is fixedly connected with the rotating bracket (503).