CN112053883A

CN112053883A - Power switch

Info

Publication number: CN112053883A
Application number: CN202010881078.4A
Authority: CN
Inventors: 陈艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-12-08

Abstract

The invention belongs to the technical field of electricity, and discloses an electric switch which is characterized by comprising a gate, a containing cavity, a frame body, a spring, a supporting frame, an electromagnet, a magnet, a first electric contact and a second electric contact; the springs are uniformly fixed at the inner bottom end of the frame body, and the bottom end of the containing cavity is elastically connected to the other end of the spring; liquid metal is filled in the cavity, and a magnet is fixedly arranged in the middle of the bottom end of the cavity; the electromagnet is fixedly connected with the inner bottom end of the frame body and is positioned right below the magnet; the top end in the frame body is fixedly connected with a support frame, and a gate is rotatably connected on the support frame; the invention has the advantages of ingenious design, flexible application, long electric service life, stability, reliability and safe use, and can not only avoid the damage of arc discharge to the switch when the switch is disconnected, but also well avoid the damage of arc discharge to the switch when the switch is closed by the large funnel and the small funnel reversely buckled on the large funnel.

Description

Power switch

Technical Field

The invention belongs to the technical field of electricity, and particularly relates to a power switch.

Background

With the expansion of industrial and agricultural production, various types of high-power equipment are used in production, and some inductive loads (such as motor sets, compressors, pumps, transformers, and the like) and capacitive loads (such as compensation capacitors) have low power, namely thousands of watts, and high power, namely tens of kilowatts or even higher. Due to the voltage and current characteristics of the switch, when the switch is just opened or closed, the distance between the contacts is small, and the arc discharge phenomenon is easily caused by voltage breakdown. The arc causes electrical wear and material erosion between the contacts, thereby affecting device life and greatly reducing operational reliability. In severe cases, fusion welding even occurs, so that the circuit cannot be disconnected, power supply accidents are caused, and the safety of personnel and equipment is endangered. We have therefore devised a power switch to address the above problems.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to solve the problems in the prior art, and provides a power switch which solves the problem that when the switch is just opened and closed, voltage breakdown is easy to cause arc discharge due to small distance between contacts.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A power switch is characterized by comprising a gate, a containing cavity, a frame body, a spring, a support frame, an electromagnet, a magnet, a first electric contact and a second electric contact;

the springs are uniformly fixed at the inner bottom end of the frame body, and the bottom end of the containing cavity is elastically connected to the other end of the spring; liquid metal is filled in the cavity, and a magnet is fixedly arranged in the middle of the bottom end of the cavity;

the electromagnet is fixedly connected with the inner bottom end of the frame body and is positioned right below the magnet;

the top end in the frame body is fixedly connected with a support frame, and a gate is rotatably connected on the support frame;

the gate comprises a rotating shaft, a big funnel and a small funnel which are rotatably connected on the supporting frame;

the rotating shafts are symmetrically arranged on the outer wall of the large funnel, the small funnel is reversely buckled on the large funnel, and liquid inlets are uniformly formed in the connecting position of the large funnel and the small funnel;

a liquid storage cavity is arranged in the large funnel, an opening is formed in the upper end face of the liquid storage cavity, and a first liquid outlet is formed in the sharp corner of the large funnel;

the sharp corner of the small funnel is provided with a second liquid outlet.

Preferably, a stepping motor is fixedly arranged on the upper end face of the frame body, the stepping motor is connected to the rotating shaft through a driving belt in a power mode, a through hole is formed in the upper end face of the frame body, and the driving belt penetrates through the through hole.

Preferably, the side wall of the frame body is provided with an outlet.

Preferably, the first electrical contact is electrically connected to the rotating shaft, and the second electrical contact is electrically connected to the cavity.

Preferably, the material of the cavity is tungsten.

Preferably, the liquid metal is mercury.

Preferably, the support frame and the spring are made of insulating materials.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

firstly, the invention provides a new technical idea.

The power switch is ingenious in design, flexible in application, long in electrical service life, stable, reliable and safe to use, and the large funnel and the small funnel reversely buckled on the large funnel can not only prevent the switch from being damaged by arc discharge when the switch is disconnected, but also can well prevent the switch from being damaged by arc discharge when the switch is closed.

Third, the power switch of the invention can avoid the leakage of the switch and is safer to operate through the design of the insulating support frame and the spring.

The power switch can be remotely controlled to be opened and closed through the electromagnet and the magnet, so that the safety of operators is guaranteed, and the operation is more flexible.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view of a three-dimensional structure of the present invention;

FIG. 3 is a schematic perspective view of a gate according to the present invention;

FIG. 4 is a schematic diagram of the structure of the present invention with the gate disconnected;

FIG. 5 is a schematic view of the structure of the final drop of liquid metal flowing out of the large funnel according to the present invention;

FIG. 6 is a schematic diagram of a gate flipped over structure according to the present invention;

FIG. 7 is a schematic diagram of the structure of the present invention when the gate is turned on;

FIG. 8 is a schematic structural diagram of the gate electrode returning to the initial state according to the present invention;

in the figure: 1. frame 101, outlet 102, through hole 2, spring 3, cavity 4, support frame 5, gate 51, shaft 52, big funnel 53, liquid storage cavity 54, opening 55, first outlet 56, inlet 57, small funnel 58, second outlet 6, electromagnet 7, magnet 8, stepping motor 9, driving belt a, first electric contact, b, second electric contact.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. In the drawings of the embodiments of the present application, hatching of various types in the drawings is not labeled according to national standards, does not require the material of elements, and distinguishes the sectional views of the elements in the drawings.

Referring to fig. 1-8, a power switch for various types of high power devices is shown, which is used to prevent the electrical wear and material erosion between contacts due to the arc during the opening and closing process, thereby affecting the lifetime of the device. Specifically, the power switch comprises a gate 5, a cavity 3, a frame 1, a spring 2, a support frame 4, an electromagnet 6, a magnet 7, a first electric contact a and a second electric contact b.

The spring 2 is evenly fixed at the inner bottom end of the frame body 1, and the bottom end of the cavity 3 is elastically connected to the other end of the spring 2. The liquid metal is equipped with in holding chamber 3, holds 3 bottom middle parts in chamber and fixes and be provided with magnet 7, and electro-

magnet

6 and 1 inner bottom end fixed connection of framework are held, and electro-magnet 6 is located magnet 7 under, can remote control switch's the opening and shutting like this, guarantees that operating personnel's safety, operation are also more nimble.

Top end fixedly connected with support frame 4 in framework 1, it is connected with gate 5 to rotate on the support frame 4, gate 5 is including rotating the pivot 51 of connecting on support frame 4, big funnel 52, little funnel 57, pivot 51 symmetry sets up on the outer wall of big funnel 52, little funnel 57 back-off is on big funnel 52, big funnel 52 has evenly seted up inlet 56 with little funnel 57 junction, be provided with in the big funnel 52 and hold liquid chamber 53, hold the liquid chamber 53 up end and seted up opening 54, first liquid outlet 55 has been seted up to big funnel 52 closed angle department, second liquid outlet 58 has been seted up to the closed angle department of little funnel 57, first electric contact an and pivot 51 electric connection, second electric contact b and 3 electric connections in appearance chamber.

The upper end surface of the frame body 1 is fixedly provided with a stepping motor 8, the stepping motor 8 is in power connection with the rotating shaft 51 through a transmission belt 9, the upper end surface of the frame body 1 is provided with a through hole 102, and the transmission belt 9 penetrates through the through hole 102, so that the gate 5 can be controlled to turn over.

The side wall of the frame 1 is provided with an outlet 101.

The material of the cavity 3 is tungsten.

The liquid metal is mercury.

The supporting frame 4 and the spring 2 are made of insulating materials.

When the gate 5 is immersed in the liquid metal in the chamber 3, an electrical path is formed between the first electrical contact a and the second electrical contact b, the large funnel 52 is filled with the liquid metal, when the switch is turned off, the electromagnet 6 is energized, the chamber 3 is lowered under the action of the magnetic force between the electromagnet 6 and the magnet 7, and at the same time, the liquid metal in the large funnel 52 flows out from the first liquid outlet 55, so that the circuit is still in the on state, when the liquid metal is rapidly flowed out, an arc is drawn, but the voltage is applied to the liquid metal, thereby protecting the gate 5, when the switch is turned on, the stepping motor 8 is firstly turned on, so that the gate 5 is turned over, the liquid metal in the liquid storage chamber 53 flows into the small funnel 57 through the opening 54 and then flows out from the second liquid outlet 58, when the liquid metal approaches the liquid metal in the chamber 3, the arc drawing occurs, however, the voltage is applied to the liquid metal, and at the same time, the electromagnet 6 is turned off, the cavity 3 will rise under the elastic force of the spring 2, the gate 5 is immersed in the liquid metal in the cavity 3, and then the stepping motor 8 is turned on in the reverse direction, so that the gate 5 is turned back to the initial state.

The above; but are merely preferred embodiments of the present application; the scope of protection of the present application is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the application are equally replaced or changed; are intended to be covered by the scope of the present application.

Claims

1. A power switch is characterized by comprising a gate (5), a containing cavity (3), a frame body (1), a spring (2), a support frame (4), an electromagnet (6), a magnet (7), a first electric contact (a) and a second electric contact (b);

the springs (2) are uniformly fixed at the inner bottom end of the frame body (1), and the bottom end of the accommodating cavity (3) is elastically connected to the other end of the springs (2); liquid metal is filled in the cavity (3), and a magnet (7) is fixedly arranged in the middle of the bottom end of the cavity (3);

the electromagnet (6) is fixedly connected with the inner bottom end of the frame body (1), and the electromagnet (6) is positioned right below the magnet (7);

the top end of the frame body (1) is fixedly connected with a support frame (4), and the support frame (4) is rotatably connected with a gate (5);

the gate (5) comprises a rotating shaft (51) rotatably connected to the support frame (4), a large funnel (52) and a small funnel (57);

the rotating shafts (51) are symmetrically arranged on the outer wall of the large funnel (52), the small funnel (57) is reversely buckled on the large funnel (52), and liquid inlets (56) are uniformly formed in the connecting part of the large funnel (52) and the small funnel (57);

a liquid storage cavity (53) is arranged in the big funnel (52), an opening (54) is formed in the upper end face of the liquid storage cavity (53), and a first liquid outlet (55) is formed in the sharp corner of the big funnel (52);

a second liquid outlet (58) is arranged at the sharp corner of the small funnel (57).

2. The power switch according to claim 1, wherein a stepping motor (8) is fixedly arranged on the upper end surface of the frame body (1), the stepping motor (8) is in power connection with the rotating shaft (51) through a transmission belt (9), a through hole (102) is formed in the upper end surface of the frame body (1), and the transmission belt (9) penetrates through the through hole (102).

3. The power switch according to claim 1, wherein the frame (1) side

The wall is provided with an outlet (101).

4. An electric switch according to claim 1, characterized in that the first electric contact (a) is electrically connected to the shaft (51) and the second electric contact (b) is electrically connected to the housing (3).

5. The power switch according to claim 1, wherein the material of the cavity (3) is tungsten.

6. The power switch of claim 1, wherein the liquid metal is mercury.

7. The power switch of claim 1, wherein the support frame (4) and the spring (2) are made of insulating materials.