CN109755054B

CN109755054B - Automatic change-over switch

Info

Publication number: CN109755054B
Application number: CN201910036207.7A
Authority: CN
Inventors: 黄文体; 郭德鑫; 洪诗长
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2024-05-14
Anticipated expiration: 2039-01-15
Also published as: CN109755054A

Abstract

The invention relates to the field of piezoelectric devices, in particular to an automatic transfer switch, when an energy storage operating mechanism is positioned at a second stable position, an external force enables a driving disc to rotate in a direction R1, the driving disc 1 drives a left spring damping mechanism to store energy through a connecting rod mechanism, when the left spring damping mechanism swings past a first critical point, the left spring damping mechanism releases energy, the left spring damping mechanism drives a left driving shaft assembly to accelerate to move, a first power supply and a load are quickly conducted, and the energy storage operating mechanism enters the first stable position; when the energy storage operating mechanism is positioned at a second stable position, the driving disc is rotated to a direction R2 by external force, the driving disc drives the right spring damping mechanism to store energy through the connecting rod mechanism, after the right spring damping mechanism swings past a second critical point, the right spring damping mechanism releases energy, the right driving shaft assembly is driven to accelerate to move, a second power supply and a load are rapidly conducted, and the energy storage operating mechanism enters a third stable position; the invention can realize the quick conduction of the switch and the three-section operation of the switch.

Description

Automatic change-over switch

Technical Field

The invention relates to the field of piezoelectric devices, in particular to an automatic transfer switch.

Background

PC-level automatic transfer switch in the current market:

1. there are two chambers, i.e. the contact system of the common power supply and the contact system of the standby power supply are respectively located in two different chambers, for example, chinese patent, publication No. CN202906563U, entitled "a double power transfer switch";

2. There are also contact structures with double rotation centers, i.e. the contacts of the common power supply and the standby power supply have different contact rotation centers, for example, chinese patent, publication No. CN103441008a, patent name "instant parallel switching structure of automatic switching switch", and chinese patent, publication No. CN203434032U, patent name "a high-speed switching electrical apparatus".

Along with the continuous development of the PC-level automatic transfer switch, in order to reduce the cost, a simple product with a single cavity appears in the three-stage automatic transfer switch, namely, a common power contact and a standby power contact are located in the same cavity, and a moving contact component is a single rotation center, so that the switching on/off of the common power supply or the standby power supply is realized through rotating the moving contact component, for example, chinese patent, publication No. CN201904246U, patent name "dual-power automatic transfer switch", chinese patent, publication No. CN207425655U, patent name "a transfer shaft energy storage structure of automatic transfer switch and automatic transfer switch".

However, the transmission mechanism of the automatic transfer switch generally adopts the principle of a positioning mechanism, and can realize the positioning of 3 different positions, but has the defects of slower opening speed and large influence of the rotating speed of a motor or the manual operation speed on the breaking capacity.

The automatic change-over switch is of a single-cavity structure, the movable contact assembly is of a single rotation center, the transmission mechanism of the automatic change-over switch is electromagnetic attraction type, for example, the automatic change-over switch is of a two-stage structure, the automatic change-over switch is disclosed in China patent with the publication number CN102812531A, namely, under the condition of electric power, the automatic change-over switch can only select a common power supply or a standby power supply, double-position power failure cannot be realized, and the speed of the contact of the automatic change-over switch just starts to move is related to the electromagnetic attraction speed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an automatic transfer switch, wherein an energy storage operating mechanism of the automatic transfer switch can realize the quick connection of the automatic transfer switch, and the energy storage operating mechanism can be kept at three stable positions, so that the three-section operation of the automatic transfer switch is realized.

In order to achieve the above purpose, the invention adopts the following technical scheme:

An automatic transfer switch includes an energy storage operating mechanism including a drive plate 1, a linkage mechanism, a left spring damping mechanism 20, a right spring damping mechanism 21, a left drive shaft assembly 206 and a right drive shaft assembly 216; the driving disc 1 is connected with a connecting rod mechanism, the connecting rod mechanism is respectively hinged with one end of the left spring damping mechanism 20 and one end of the right spring damping mechanism 21 through a left driving shaft assembly 206 and a right driving shaft assembly 216, the other end of the left spring damping mechanism 20 is pivoted, the other end of the right spring damping mechanism 21 is pivoted, and the left driving shaft assembly 206 and the right driving shaft assembly 216 are respectively in driving fit with a moving contact assembly of the automatic change-over switch;

When the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the connecting rod mechanism, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past a first critical point, the left spring damping mechanism 20 releases energy, the left driving shaft assembly 206 is driven to accelerate to move by the left spring damping mechanism 20, the moving contact assembly is driven by the left driving shaft assembly 206 to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position;

When the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates in a second power supply conduction direction R2 opposite to the first power supply conduction direction R1 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the connecting rod mechanism, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 swings to pass through a second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 is driven to accelerate movement by the right spring damping mechanism 21, the moving contact assembly is driven by the right driving shaft assembly 216 to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position.

Preferably, after the energy storage operating mechanism enters the first stable position from the second stable position, the driving disc 1 rotates towards the second power supply conducting direction R2 by external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the connecting rod assembly, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left driving shaft assembly 206 is driven by the left spring damping mechanism 20 to accelerate movement, the first power supply and the load are rapidly disconnected by the moving contact assembly driven by the left driving shaft assembly 206, and the energy storage operating mechanism enters the second stable position;

After the energy storage operating mechanism enters a third stable position from a second stable position, external force enables the driving disc 1 to rotate towards the first power supply conducting direction R1, the driving disc 1 drives the right spring damping mechanism 21 to swing through the connecting rod mechanism, so that the right spring damping mechanism 21 stores energy, after the right spring damping mechanism 21 swings through a second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 is driven to accelerate to move, the right driving shaft assembly 216 drives the movable contact assembly to rapidly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

Preferably, when the energy storage operating mechanism is at the second stable position, the automatic transfer switch is in a double-opening state; when the energy storage operating mechanism is positioned at a first stable position, the automatic transfer switch is positioned in a first power supply closing state; when the energy storage operating mechanism is in the third stable position, the automatic transfer switch is in a second power supply closing state.

Preferably, the linkage mechanism includes a left drive rod 205, a right drive rod 215, a left link 204, and a right link 214; one end of the left driving rod 205 is connected with the driving disc 1, the other end of the left driving rod is hinged with one end of the left spring damping mechanism 20 through the left driving shaft assembly 206, the other end of the left spring damping mechanism 20 is pivoted, one end of the right driving rod 215 is connected with the driving disc 1, the other end of the right driving rod is hinged with one end of the right spring damping mechanism 21 through the right driving shaft assembly 216, and the other end of the right spring damping mechanism 21 is pivoted; one end of the left connecting rod 204 is hinged with one end of the left spring damping mechanism 20 through a left driving shaft assembly 206, the other end of the left connecting rod is pivoted, one end of the right connecting rod 214 is hinged with one end of the right spring damping mechanism 21 through a right driving shaft assembly 216, and the other end of the right connecting rod is pivoted;

When the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left driving shaft assembly 206 is driven to accelerate to move by the left spring damping mechanism 20, the moving contact assembly is driven by the left driving shaft assembly 206 to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position;

When the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates towards the second power supply conducting direction R2 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 swings past the second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 is driven to accelerate, the right driving shaft assembly 216 drives the movable contact assembly to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position.

Preferably, after the energy storage operating mechanism enters the first stable position from the second stable position, the driving disc 1 rotates in the second power supply conducting direction R2 by an external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left driving shaft assembly 206 is driven by the left spring damping mechanism 20 to accelerate movement, the first power supply and the load are rapidly disconnected by the moving contact assembly driven by the left driving shaft assembly 206, and the energy storage operating mechanism enters the second stable position;

After the energy storage operating mechanism enters the third stable position from the second stable position, the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, after the right spring damping mechanism 21 swings through the second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 is driven to accelerate and move by the right spring damping mechanism 21, the moving contact assembly is driven by the right driving shaft assembly 216 to rapidly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

Preferably, the left driving rod 205 includes a left driving rod front end 205a and a left driving rod rear end 205b respectively disposed at two ends thereof, the left driving rod front end 205a is provided with a left kidney-shaped hole 2050, and the left driving rod rear end 205b is hinged to one end of the left spring damping mechanism 20 through a left driving shaft assembly 206; the right driving rod 215 comprises a right driving rod front end 215a and a right driving rod rear end 215b which are respectively arranged at two ends of the right driving rod, the right driving rod front end 215a is provided with a right kidney-shaped hole 2150, and the right driving rod rear end 215b is hinged with the right spring damping mechanism 21 through a right driving shaft assembly 216;

The driving disk 1 includes a left crank 10 and a right crank 11 provided thereon, the left crank 10 being inserted into the left kidney-shaped hole 2050 and the left crank 10 being capable of reciprocating sliding in the left kidney-shaped hole 2050, the right crank 11 being inserted into the right kidney-shaped hole 2150 and the right crank 11 being capable of reciprocating sliding in the right kidney-shaped hole 2150.

Preferably, one end of the left link 204 and one end of the right link 214 are both pivotally arranged by a first pivot 2021; the left spring damper mechanism 20, the left driving rod 205, the left connecting rod 204 and the left driving shaft assembly 206 are positioned on one side of the connecting line of the first pivot 2021 and the rotation center of the driving disk 1, and the right spring damper mechanism 21, the right driving rod 215, the right connecting rod 214 and the right driving shaft assembly 216 are positioned on the other side of the connecting line of the first pivot 2021 and the rotation center of the driving disk 1.

Preferably, the left spring damping mechanism 20 comprises a left spring 200, a left spring support 201 and a left pivot 202, wherein the left spring support 201 comprises a left support waist-shaped hole which is arranged at one end of the left spring support and extends along the axial direction of the left spring support 201, the left pivot 202 is inserted into the left support waist-shaped hole, the left spring support 201 is pivoted through the left pivot 202, the other end of the left spring support 201 is hinged with a left driving rod 205, the left spring 200 is sleeved on the left spring support 201, one end of the left spring support is connected with the left pivot 202, and the other end of the left spring support 201 is connected with one end hinged with the left driving rod 205;

The right spring damping mechanism 21 comprises a right spring 210, a right spring bracket 211 and a right pivot 212, wherein the right spring bracket 211 comprises a right bracket waist-shaped hole which is arranged at one end of the right spring bracket and axially extends along the right spring bracket 211, the right pivot 212 is inserted into the right bracket waist-shaped hole, the right spring bracket 211 is pivoted through the right pivot 212, the other end of the right spring bracket 211 is hinged with a right driving rod 215, the right spring 210 is sleeved on the right spring bracket 211, one end of the right spring bracket is connected with the right pivot 212, and the other end of the right spring bracket 211 is connected with one end of the right spring bracket 211 which is hinged with the right driving rod 215.

Preferably, the energy storage operating mechanism further comprises a turntable 4 pivoted in the middle, the turntable 4 is coaxially linked with the moving contact assembly, the turntable 4 comprises a left circular arc groove 40 and a right circular arc groove 41, the left circular arc groove 40 and the right circular arc groove 41 are symmetrically distributed on two sides of the rotation center of the turntable 4, the left circular arc groove 40 comprises a left circular arc groove upper end 40a and a left circular arc groove lower end 40b which are respectively arranged at two ends of the turntable, the right circular arc groove 41 comprises a right circular arc groove upper end 41a and a right circular arc groove lower end 41b which are respectively arranged at two ends of the turntable, one end of the left driving shaft assembly 206 is arranged in the left circular arc groove 40, and one end of the right driving shaft assembly 216 is arranged in the right circular arc groove 41;

When the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates in the first power supply conducting direction R1 by an external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past a first critical point, the left spring damping mechanism 20 releases energy, the left spring damping mechanism 20 pushes the upper end 40a of the left arc groove through the left driving shaft assembly 206, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position;

when the energy storage operating mechanism is at the second stable position, the driving disc 1 rotates towards the second power supply conducting direction R2 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 swings past the second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 pushes the upper end 41a of the right circular arc groove, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate, the moving contact assembly is enabled to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position.

Preferably, after the energy storage operating mechanism enters the first stable position from the second stable position, the driving disc 1 rotates towards the second power supply conducting direction R2 by an external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left spring damping mechanism 20 pushes the lower end 40b of the left circular arc groove through the left driving shaft assembly 206, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly break the first power supply and the load, and the energy storage operating mechanism enters the second stable position;

After the energy storage operating mechanism enters the third stable position from the second stable position, the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, after the right spring damping mechanism 21 swings to pass through the second critical point, the right spring damping mechanism 21 releases energy, the right spring damping mechanism 21 pushes the lower end 41b of the right circular arc groove through the right driving shaft assembly 216, so that the turntable 4 accelerates to rotate, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to quickly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

Preferably, the energy storage operating mechanism further comprises a motor 9, wherein the motor 9 is connected with the driving disc 1 and provides external force for driving the driving disc 1 to rotate; the motor 9, the driving disc 1 and the rotary disc 4 are sequentially arranged, the left spring damping mechanism 20 and the right spring damping mechanism 21 are respectively positioned on two sides of the driving disc 1 and between the motor 9 and the rotary disc 4, and the connecting rod mechanism is positioned on one side of the driving disc 1 and between the left spring damping mechanism 20 and the right spring damping mechanism 21.

Preferably, the distance between the left crank 10 and the rotation center of the driving disk 1 is the same as the distance between the right crank 11 and the rotation center of the driving disk 1; the included angle between the connecting line of the left crank 10 and the rotation center of the driving disc 1 and the connecting line of the right crank 11 and the rotation center of the driving disc 1 is <180 ^o.

Preferably, the driving disc 1 includes a first disc 1a and a second disc 1b which are oppositely arranged, the first disc 1a and the second disc 1b have the same structure, the first disc 1a and the second disc 1b are connected through a plurality of connecting shafts 12, two ends of a left crank 10 and a right crank 11 are respectively connected with the first disc 1a and the second disc 1b, the connecting shafts 12 are positioned at one side of the rotation center of the driving disc 1, and the left crank 10 and the right crank 11 are positioned at the other side of the rotation center of the driving disc 1.

When the energy storage operating mechanism of the automatic transfer switch enters a first stable position from a second stable position, the left driving shaft assembly 206 is accelerated to move through energy storage and energy release of the left spring damping mechanism 20, the left driving shaft assembly 206 drives the moving contact assembly to rapidly conduct a first power supply and a load, and when the energy storage operating mechanism enters a third stable position from the second stable position, the right driving shaft assembly 216 is accelerated to move through energy storage and energy release of the right spring damping mechanism 21, and the right driving shaft assembly 216 drives the moving contact assembly to rapidly conduct a second power supply and a load, so that the closing speed of the automatic transfer switch is obviously improved, and compared with the existing automatic transfer switch, the closing speed of the automatic transfer switch is not influenced by the speed of a motor or manual operation, and the action performance of the automatic transfer switch is improved; the energy storage operating mechanism of the automatic transfer switch can be kept at the first stable position, the second stable position and the third stable position, so that three-stage operation is realized.

Drawings

FIG. 1 is a schematic structural view of an energy storage mechanism of the present invention showing the assembled relationship of a turntable, a linkage, a drive disk, a left spring damping mechanism, a right spring damping mechanism, and a motor;

FIG. 2 is a schematic structural view of the energy storage mechanism of the present invention showing the assembled relationship of the turntable, linkage, drive disk, left spring damping mechanism and right spring damping mechanism;

FIG. 3 is a schematic structural view of the energy storage mechanism of the present invention showing the positional relationship of the turntable, the drive disk, the left spring damping mechanism and the right spring damping mechanism;

FIG. 4 is a schematic structural view of the energy storage mechanism of the present invention showing the assembled relationship of the drive disk, left drive rod and right drive rod;

FIG. 5 is a schematic view of the structure of the turntable of the present invention;

FIG. 6 is a schematic structural view of the energy storage mechanism of the present invention in a first stable position;

FIG. 7 is another schematic structural view of the energy storage mechanism of the present invention in a first stable position;

FIG. 8 is a schematic structural view of the energy storage mechanism of the present invention in a second stable position;

FIG. 9 is another schematic structural view of the energy storage mechanism of the present invention in a second stable position;

FIG. 10 is a schematic view of the energy storage mechanism of the present invention in a third stable position;

Fig. 11 is another schematic structural view of the energy storage mechanism of the present invention in a third stable position.

Detailed Description

Embodiments of the automatic transfer switch of the present invention are further described below with reference to the examples shown in fig. 1-11. The automatic transfer switch of the present invention is not limited to the description of the following embodiments.

The automatic transfer switch of the present invention comprises an energy storage operating mechanism comprising a drive disc 1, a link mechanism, a left spring damping mechanism 20, a right spring damping mechanism 21, a left drive shaft assembly 206 and a right drive shaft assembly 216; the driving disc 1 is connected with a connecting rod mechanism, the connecting rod mechanism is respectively hinged with one end of the left spring damping mechanism 20 and one end of the right spring damping mechanism 21 through a left driving shaft assembly 206 and a right driving shaft assembly 216, the other end of the left spring damping mechanism 20 is pivoted, the other end of the right spring damping mechanism 21 is pivoted, and the left driving shaft assembly 206 and the right driving shaft assembly 216 are respectively in driving fit with a moving contact assembly of the automatic change-over switch;

When the energy storage operating mechanism of the automatic transfer switch enters a first stable position from a second stable position, the left driving shaft assembly 206 is accelerated to move through energy storage and energy release of the left spring damping mechanism 20, the left driving shaft assembly 206 drives the moving contact assembly to rapidly conduct a first power supply and a load, and when the energy storage operating mechanism enters a third stable position from the second stable position, the right driving shaft assembly 216 is accelerated to move through energy storage and energy release of the right spring damping mechanism 21, and the right driving shaft assembly 216 drives the moving contact assembly to rapidly conduct a second power supply and a load, so that the closing speed of the automatic transfer switch is obviously improved; the energy storage operating mechanism of the automatic transfer switch can be kept at the first stable position, the second stable position and the third stable position, so that three-stage operation is realized.

The automatic transfer switch can respectively realize the quick connection/disconnection of the first power supply and the second power supply, and obviously improves the connection/disconnection capacity of the automatic transfer switch.

Preferably, when the energy storage operating mechanism is in the second stable position, the automatic transfer switch is in a double-opening state, namely the moving contact assembly is not conducted with the first power supply and the load, and is not conducted with the second power supply and the load; when the energy storage operating mechanism is positioned at a first stable position, the automatic transfer switch is in a first power supply closing state, namely the movable contact assembly conducts a first power supply and a load; when the energy storage operating mechanism is in a third stable position, the automatic transfer switch is in a second power supply closing state, namely the movable contact assembly conducts the second power supply and the load.

It should be noted that the first power source is a common power source (or a standby power source), and the second power source is a standby power source (or a common power source).

As shown in fig. 1-11, one embodiment of the automatic transfer switch of the present invention is shown.

As shown in fig. 1-5, the automatic transfer switch of the present invention includes an energy storage operating mechanism including a drive plate 1, a linkage mechanism, a left spring damping mechanism 20, a right spring damping mechanism 21, a left drive shaft assembly 206 and a right drive shaft assembly 216; the link mechanism comprises a left driving rod 205, a right driving rod 215, a left connecting rod 204 and a right connecting rod 214, wherein one end of the left driving rod 205 is connected with the driving disc 1, the other end of the left driving rod is hinged with one end of the left spring damping mechanism 20 through a left driving shaft assembly 206, the other end of the left spring damping mechanism 20 is pivoted, one end of the right driving rod 215 is connected with the driving disc 1, the other end of the right driving rod 215 is hinged with one end of the right spring damping mechanism 21 through a right driving shaft assembly 216, the other end of the right spring damping mechanism 21 is pivoted, one end of the left connecting rod 204 is hinged with one end of the left spring damping mechanism 20 through the left driving shaft assembly 206, the other end of the right connecting rod 214 is pivoted, and one end of the right connecting rod 214 is hinged with one end of the right spring damping mechanism 21 through a right driving shaft assembly 216. Specifically, as shown in fig. 2, the driving disc 1 is disposed on the upper side of the link mechanism, the left spring damping mechanism 20 and the right spring damping mechanism 21 are respectively disposed on two sides of the link mechanism and the driving disc 1, the upper end of the left driving rod 205 is connected with the driving disc 1, the lower end is hinged with the left end of the left spring damping mechanism 20 through the left driving shaft assembly 206, the right end of the left spring damping mechanism 20 is pivotally disposed, the upper end of the right driving rod 215 is connected with the driving disc 1, the lower end is hinged with the right end of the right spring damping mechanism 21 through the right driving shaft assembly 216, the left end of the right spring damping mechanism 21 is pivotally disposed, the lower end of the left connecting rod 204 is hinged with the left end of the left spring damping mechanism 20 through the left driving shaft assembly 206, the upper end is pivotally disposed, and the lower end of the right connecting rod 214 is hinged with the right end of the right spring damping mechanism 21 through the right driving shaft assembly 216; the left drive rod 205, left link 204 and left spring damper mechanism 20 are all rotatably coupled to the left drive shaft assembly 206, and the right drive rod 215, right link 214 and right spring damper mechanism 21 are all rotatably coupled to the right drive shaft assembly 216.

Preferably, as shown in fig. 2, one end of the left link 204 and one end of the right link 214 are both pivotally disposed via a first pivot 2021. Further, as shown in fig. 2, the left spring damper mechanism 20, the left driving lever 205, the left link 204 and the left driving shaft assembly 206 are located at one side of the connection line between the first pivot 2021 and the rotation center of the driving disk 1, and the right spring damper mechanism 21, the right driving lever 215, the right link 214 and the right driving shaft assembly 216 are located at the other side of the connection line between the first pivot 2021 and the rotation center of the driving disk 1. Further, as shown in fig. 6-11, the left pivot 202 of the left spring damper mechanism 20, the right pivot 212 of the right spring damper mechanism 21, and the first pivot 2021 are positioned on the same straight line.

Preferably, the first pivot 2021 is stationary.

Preferably, the first pivot 2021 may be slightly offset, i.e. may be moved by a small amount, to facilitate assembly.

Preferably, as shown in fig. 2 and 4, the left driving rod 205 includes a left driving rod front end 205a and a left driving rod rear end 205b disposed at both ends thereof, the left driving rod front end 205a is provided with a left kidney-shaped hole 2050, and the left driving rod 205b is hinged to one end of the left spring damping mechanism 20 through a left driving shaft assembly 206; the right driving rod 215 includes a right driving rod front end 215a and a right driving rod rear end 215b respectively disposed at both ends thereof, the right driving rod front end 215a is provided with a right kidney-shaped hole 2150, and the right driving rod rear end 215b is hinged with the right spring damping mechanism 21 through the right driving shaft assembly 216.

Preferably, the left driving rod 205 and the right driving rod 215 have the same structure, and the left connecting rod 204 and the right connecting rod 214 have the same structure, which is beneficial to reducing the types of parts of the automatic transfer switch, reducing the production cost and improving the universality of the parts.

Preferably, as shown in fig. 2 and 4, the driving disk 1 includes a left crank 10 and a right crank 11 provided thereon, the left crank 10 is inserted into the left kidney-shaped hole 2050 and the left crank 10 can reciprocally slide in the left kidney-shaped hole 2050, the right crank 11 is inserted into the right kidney-shaped hole 2150 and the right crank 11 can reciprocally slide in the right kidney-shaped hole 2150. Further, as shown in fig. 7, 9 and 11, the distance between the left crank 10 and the rotation center of the drive disk 1 is the same as the distance between the right crank 11 and the rotation center of the drive disk 1; the included angle between the connecting line of the left crank 10 and the rotation center of the driving disc 1 and the connecting line of the right crank 11 and the rotation center of the driving disc 1 is <180 ^o. Further, as shown in fig. 7, 9 and 11, the included angle between the line connecting the left crank 10 and the rotation center of the driving disk 1 and the line connecting the right crank 11 and the rotation center of the driving disk 1 is 90 ^o.

Preferably, as shown in fig. 2, the left spring damping mechanism 20 includes a left spring 200, a left spring support 201 and a left pivot 202, the left spring support 201 includes a left support kidney-shaped hole disposed at one end thereof and extending axially along the left spring support 201, the left pivot 202 is inserted into the left support kidney-shaped hole, the left spring support 201 is pivotally disposed through the left pivot 202, the other end of the left spring support 201 is hinged with a left driving rod 205, the left spring 200 is sleeved on the left spring support 201, one end is connected with the left pivot 202, and the other end is connected with one end of the left spring support 201 hinged with the left driving rod 205; the right spring damping mechanism 21 comprises a right spring 210, a right spring bracket 211 and a right pivot 212, wherein the right spring bracket 211 comprises a right bracket waist-shaped hole which is arranged at one end of the right spring bracket and axially extends along the right spring bracket 211, the right pivot 212 is inserted into the right bracket waist-shaped hole, the right spring bracket 211 is pivoted through the right pivot 212, the other end of the right spring bracket 211 is hinged with a right driving rod 215, the right spring 210 is sleeved on the right spring bracket 211, one end of the right spring bracket is connected with the right pivot 212, and the other end of the right spring bracket 211 is connected with one end of the right spring bracket 211 which is hinged with the right driving rod 215. Further, as shown in fig. 2, the left spring damping mechanism 20 and the right spring damping mechanism 21 have the same structure, which is beneficial to reducing the types of parts of the automatic transfer switch of the present invention, reducing the production cost and improving the versatility of the parts.

Preferably, as shown in fig. 1 and 4, the driving disc 1 includes a first disc 1a and a second disc 1b which are disposed opposite to each other, the first disc 1a and the second disc 1b have the same structure, the first disc 1a and the second disc 1b are connected by a plurality of connecting shafts 12, both ends of a left crank 10 and a right crank 11 are respectively connected with the first disc 1a and the second disc 1b, the connecting shafts 12 are located at one side of the rotation center of the driving disc 1, and the left crank 10 and the right crank 11 are located at the other side of the rotation center of the driving disc 1. Further, as shown in fig. 4, the first disc 1a and the second disc 1b are connected by two connecting shafts 12.

When the energy storage operating mechanism is in the second stable position (as shown in fig. 8 and 9), the driving disc 1 rotates in the first power supply conducting direction R1 by an external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left driving shaft assembly 206 is driven by the left spring damping mechanism 20 to accelerate movement, the moving contact assembly is driven by the left driving shaft assembly 206 to rapidly conduct the first power supply and the load, and the energy storage operating mechanism is brought into the first stable position (as shown in fig. 6 and 7); after the energy storage operating mechanism enters the first stable position (as shown in fig. 6 and 7) from the second stable position (as shown in fig. 8 and 9), the driving disc 1 rotates towards the second power conducting direction R2 by the external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left spring damping mechanism 20 drives the left driving shaft assembly 206 to accelerate movement, the left driving shaft assembly 206 drives the moving contact assembly to rapidly break the first power source and the load, and the energy storage operating mechanism enters the second stable position (as shown in fig. 8 and 9).

Specifically, as shown in fig. 6-9, when the energy storage operating mechanism is in the second stable position, the driving disc 1 is rotated in the first power conducting direction R1 by an external force, the driving disc 1 pulls the left driving rod 205 to move to the left through the left crank 10, the left driving rod 205 pulls the left spring damping mechanism 20 to swing to the left through the left driving shaft assembly 206, so that the left spring damping mechanism 20 stores energy, when the left spring damping mechanism 20 is in a vertical state, the left spring damping mechanism 20 stores energy to the maximum, the left spring damping mechanism 20 continues to swing to the left (i.e. the driving disc 1 rotates past the first critical point, the left spring damping mechanism 20 swings past the first critical point), and then the left spring damping mechanism 20 turns to the energy release state; after the energy storage operating mechanism enters the first stable position from the second stable position, the driving disc 1 rotates in the second power conducting direction R2 by an external force, the driving disc 1 pushes the left driving rod 205 to move rightward through the left crank 10, the left driving rod 205 pushes the left spring damping mechanism 20 to swing rightward through the left driving shaft assembly 206, when the left spring damping mechanism 20 is changed into a vertical state, the energy storage of the left spring damping mechanism 20 reaches the maximum, the left spring damping mechanism 20 continues to swing rightward (i.e. the driving disc 1 rotates past the first critical point, the left spring damping mechanism 20 swings past the first critical point), and the left spring damping mechanism 20 changes into an energy release state. During the above-described operation, the right crank 11 of the driving disk 1 slides back and forth only in the right kidney-shaped hole 2150 of the right driving lever 215, and does not drive the right spring damper mechanism 21 to swing. Preferably, in the second stable position of the stored energy operating mechanism, the left crank 10 is positioned near the left end of the left kidney shaped aperture 2050 and the right crank 11 is positioned near the left end of the right kidney shaped aperture 2150, as shown in the orientation of fig. 8 and 9.

When the energy storage operating mechanism is at the second stable position (as shown in fig. 8 and 9), the driving disc 1 rotates in the second power supply conducting direction R2 by an external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, after the right spring damping mechanism 21 swings past the second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 is driven by the right spring damping mechanism 21 to accelerate movement, the moving contact assembly is driven by the right driving shaft assembly 216 to rapidly conduct the second power supply and the load, and the energy storage operating mechanism is brought into the third stable position (as shown in fig. 10 and 11); after the energy storage operating mechanism enters a third stable position (shown in fig. 10 and 11) from a second stable position (shown in fig. 8 and 9), the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 swings past a second critical point, the right spring damping mechanism 21 releases energy, the right spring damping mechanism 21 drives the right driving shaft assembly 216 to accelerate movement, the right driving shaft assembly 216 drives the movable contact assembly to quickly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position (shown in fig. 8 and 9).

Specifically, as shown in fig. 8-11, when the energy storage operating mechanism is in the second stable position, the external force makes the driving disc 1 rotate towards the second power conducting direction R2, the driving disc 1 pulls the right driving rod 215 to move to the left through the right crank 11, the right driving rod 215 pulls the right spring damping mechanism 21 to swing to the left through the right driving shaft assembly 216, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 becomes in the vertical state, the energy storage of the right spring damping mechanism 21 reaches the maximum, the right spring damping mechanism 21 continues to swing to the left (i.e. makes the driving disc 1 rotate past the second critical point), and then the right spring damping mechanism 21 is converted into the energy release state; after the energy storage operating mechanism enters the third stable position from the second stable position, the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 pushes the right driving rod 215 to move to the right side through the right crank 11, the right driving rod 215 pushes the right spring damping mechanism 21 to swing to the right through the right driving shaft assembly 216, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 is in a vertical state, the energy storage of the right spring damping mechanism 21 reaches the maximum, the right spring damping mechanism 21 continues to swing to the right (namely, the driving disc 1 rotates to pass through the second critical point), and then the right spring damping mechanism 21 is converted into an energy release state. During the above-described operation, the left crank 10 of the driving disk 1 slides back and forth only in the left kidney-shaped hole 2050 of the left driving lever 205, and does not drive the right spring damper mechanism 21 to swing.

Preferably, as shown in fig. 1-11, the energy storage operating mechanism further includes a turntable 4 pivoted in the middle, the turntable 4 is coaxially linked with the moving contact assembly, the turntable 4 includes a left circular arc groove 40 and a right circular arc groove 41, the left circular arc groove 40 and the right circular arc groove 41 are symmetrically distributed on two sides of a rotation center of the turntable 4, the left circular arc groove 40 includes a left circular arc groove upper end 40a and a left circular arc groove lower end 40b respectively disposed on two ends of the left circular arc groove 40, the right circular arc groove 41 includes a right circular arc groove upper end 41a and a right circular arc groove lower end 41b respectively disposed on two ends of the right circular arc groove 41, one end of the left driving shaft assembly 206 is disposed in the left circular arc groove 40, and one end of the right driving shaft assembly 216 is disposed in the right circular arc groove 41.

Preferably, as shown in fig. 5, the left driving shaft assembly 206 includes a left hinge shaft 206a and a left driving shaft 206b disposed at one end of the left hinge shaft 206a, the outer diameter of the left driving shaft 206b > the outer diameter of the left hinge shaft 206a, the left connecting rod 204 and the left driving rod 205 are hinged with the left spring damper mechanism 20 through the left hinge shaft 206a, respectively, and the left driving shaft 206b is disposed in the left arc groove 40; the right driving shaft assembly 216 includes a right hinge shaft 216a and a right driving shaft 216b disposed at one end of the right hinge shaft 216a, the outer diameter of the right driving shaft 216b is greater than the outer diameter of the right hinge shaft 216a, the right connecting rod 214 and the right driving rod 215 are respectively hinged with the right spring damper mechanism 21 through the right hinge shaft 216a, and the right driving shaft 216b is disposed in the right circular arc groove 41. Further, the left and right drive shaft assemblies 206, 216 are identical in construction.

When the energy storage operating mechanism is in the second stable position (as shown in fig. 8 and 9), the driving disc 1 rotates in the first power supply conducting direction R1 by an external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings past the first critical point, the left spring damping mechanism 20 releases energy, the left spring damping mechanism 20 pushes the upper end 40a of the left circular arc slot through the left driving shaft assembly 206, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position (as shown in fig. 6 and 7); after the energy storage operating mechanism enters the first stable position (shown in fig. 6 and 7) from the second stable position (shown in fig. 8 and 9), the driving disc 1 rotates towards the second power conducting direction R2 by external force, the driving disc 1 drives the left spring damping mechanism 20 to swing through the left driving rod 205, so that the left spring damping mechanism 20 stores energy, after the left spring damping mechanism 20 swings through the first critical point, the left spring damping mechanism 20 releases energy, the left spring damping mechanism 20 pushes the left arc groove lower end 40b through the left driving shaft assembly 206, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly break the first power source and the load, and the energy storage operating mechanism enters the second stable position (shown in fig. 8 and 9).

Specifically, as shown in fig. 8 and 9, when the energy storage operating mechanism is in the second stable position, the left driving shaft 206b and the right driving shaft 216b are respectively located at the lower end 40b of the left circular arc slot and the lower end 41b of the right circular arc slot, the driving disc 1 is rotated in the first power conducting direction R1 by the external force, the driving disc 1 pulls the left spring damping mechanism 20 to swing left through the left driving rod 205 until the left driving shaft 206b moves from the lower end 40b of the left circular arc slot to the upper end 40a of the left circular arc slot, at this time, the left spring damping mechanism 20 is in a vertical state and the energy storage reaches the maximum, the left spring damping mechanism 20 continues to swing left (i.e. the driving disc 1 is rotated past the first critical point, the left spring damping mechanism 20 swings past the first critical point), the left spring damping mechanism 20 is turned into the energy releasing state, the left spring damping mechanism 20 pushes the upper end 40a of the left circular arc slot through the left driving shaft 206b, the turntable 4 accelerates to rotate, the moving contact assembly rapidly conducts the first power source and the load, and the energy storage operating mechanism enters the first stable position, as shown in fig. 6 and 7, the left driving shaft 206b is located at the upper end 216 a of the right circular arc slot is located at the upper end 40a of the circular arc slot. In the above-mentioned action process, the left arc groove 40 is used as the idle stroke of the left driving shaft 206b, so that the left spring damping mechanism 20 will not drive the turntable 4 to rotate before energy storage is completed, and the position of the right driving shaft 216b is kept unchanged in the whole action process, so that the two groups of spring damping mechanisms are not interfered with each other. After the energy storage operating mechanism enters the first stable position (shown in fig. 6 and 7) from the second stable position (shown in fig. 8 and 9), the driving disc 1 rotates towards the second power conducting direction R2 by the external force, the driving disc 1 pushes the left spring damping mechanism 20 to swing right through the left driving rod 205 until the left driving shaft 206b moves from the upper end 40a of the left circular arc groove to the lower end 40b of the left circular arc groove, at this time, the left spring damping mechanism 20 is in a vertical state and the energy storage reaches the maximum, the left spring damping mechanism 20 continues to swing right (i.e. the driving disc 1 rotates past the first critical point, the left spring damping mechanism 20 swings past the first critical point), the left spring damping mechanism 20 rotates into the energy releasing state, the left spring damping mechanism 20 pushes the lower end 40b of the left circular arc groove through the left driving shaft 206b, the turntable 4 accelerates, and the turntable 4 drives the moving contact assembly to rapidly break the first power supply and the load, and the energy storage operating mechanism enters the second stable position (shown in fig. 8 and 9). During the above-mentioned operation, the left arc groove 40 is used as the idle stroke of the left driving shaft 206b, so that the left spring damping mechanism 20 will not drive the turntable 4 to rotate before the energy storage is completed, and the position of the right driving shaft 216b remains unchanged during the whole operation.

When the energy storage operating mechanism is at the second stable position (as shown in fig. 8 and 9), the driving disc 1 rotates in the second power supply conducting direction R2 by an external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, after the right spring damping mechanism 21 swings past the second critical point, the right spring damping mechanism 21 releases energy, the right spring damping mechanism 21 pushes the upper end 41a of the right circular arc slot through the right driving shaft assembly 216, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position (as shown in fig. 10 and 11); after the energy storage operating mechanism enters a third stable position (shown in fig. 10 and 11) from a second stable position (shown in fig. 8 and 9), the driving disc 1 rotates towards the first power supply conducting direction R1 by external force, the driving disc 1 drives the right spring damping mechanism 21 to swing through the right driving rod 215, so that the right spring damping mechanism 21 stores energy, when the right spring damping mechanism 21 swings through a second critical point, the right spring damping mechanism 21 releases energy, the right driving shaft assembly 216 pushes the lower end 41b of the right circular arc groove, so that the turntable 4 accelerates and rotates, the turntable 4 drives the moving contact assembly to rotate, the moving contact assembly rapidly breaks the second power supply and the load, and the energy storage operating mechanism enters the second stable position (shown in fig. 8 and 9).

Specifically, as shown in fig. 8 and 9, when the energy storage operating mechanism is in the second stable position, the left driving shaft 206b and the right driving shaft 216b are respectively located at the lower end 40b of the left circular arc slot and the lower end 41b of the right circular arc slot, the external force makes the driving disc 1 rotate in the second power conducting direction R2, the driving disc 1 pulls the right spring damping mechanism 21 to swing left through the right driving rod 215 until the right driving shaft 216b moves from the lower end 41b of the right circular arc slot to the upper end 41a of the right circular arc slot, at this time, the right spring damping mechanism 21 is in a vertical state and the energy storage reaches the maximum, the right spring damping mechanism 21 continues to swing left (i.e. makes the driving disc 1 rotate past the second critical point), the right spring damping mechanism 21 turns into an energy releasing state, the right spring damping mechanism 21 pushes the upper end 41a of the right circular arc slot through the right driving shaft 216b, so that the rotating disc 4 drives the moving contact assembly to rapidly conduct the second power source and the load, and the energy storage operating mechanism enters the third stable position, as shown in fig. 10 and 11, the right driving shaft 216b is located at the upper end 41a of the left circular arc slot, and the upper end 40a of the left driving shaft is located at the upper end of the left circular arc slot. In the above operation, the right arc groove 41 is used as the idle stroke of the right driving shaft 216b, so that the right spring damping mechanism 21 will not drive the turntable 4 to rotate before the energy storage is completed, and the position of the left driving shaft 206b remains unchanged during the whole operation. After the energy storage operating mechanism enters a third stable position (shown in fig. 10 and 11) from a second stable position (shown in fig. 8 and 9), an external force causes the driving disc 1 to rotate towards the first power conducting direction R1, the driving disc 1 drives the right driving rod 215 to push the right spring damping mechanism 21 to swing rightwards until the right driving shaft 216b moves from the upper end 41a of the right circular arc groove to the lower end 41b of the right circular arc groove, at this time, the right spring damping mechanism 21 is in a vertical state and the energy storage is maximum, the right spring damping mechanism 21 continues to swing rightwards (i.e. the driving disc 1 rotates past a second critical point), the right spring damping mechanism 21 is turned into an energy releasing state, the right spring damping mechanism 21 pushes the lower end 41b of the right circular arc groove through the right driving shaft 216b to accelerate the rotating of the turntable 4, and the turntable 4 drives the moving contact assembly to rapidly break the second power source and load, and the energy storage operating mechanism enters the second stable position (shown in fig. 8 and 9). In the above operation, the right arc groove 41 is used as the idle stroke of the right driving shaft 216b, so that the right spring damping mechanism 21 will not drive the turntable 4 to rotate before the energy storage is completed, and the position of the left driving shaft 206b remains unchanged during the whole operation.

Preferably, as shown in fig. 1, the automatic transfer switch of the present invention further comprises a motor 9, and the motor 9 is connected to the driving disc 1 to provide an external force for driving the driving disc 1 to rotate. Further, as shown in fig. 1, the motor 9, the driving disc 1 and the turntable 4 are sequentially arranged, the left spring damping mechanism 20 and the right spring damping mechanism 21 are respectively located at two sides of the driving disc 1 and between the motor 9 and the turntable 4, and the link mechanism is located at one side of the driving disc 1 and between the left spring damping mechanism 20 and the right spring damping mechanism 21. Specifically, as shown in fig. 1, the motor 9, the driving disc 1 and the turntable 4 are sequentially arranged from right to left, the motor 9 is in driving connection with the driving disc 1, the link mechanism, the left spring damping mechanism 20 and the right spring damping mechanism 21 are arranged at the lower side of the driving disc 1 and are positioned between the motor 9 and the turntable 4, the left spring damping mechanism 20 and the right spring damping mechanism 21 are respectively positioned at two sides of the link mechanism, a first disc 1a of the driving disc 1 is opposite to the turntable 4, and a second disc 1b of the driving disc 1 is opposite to the motor 9; as shown in fig. 2, the first pivot 2021 is located between the left drive rod 205 and the right drive rod 215.

The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims

1. An automatic transfer switch is characterized by comprising an energy storage operating mechanism, wherein the energy storage operating mechanism comprises a driving disc (1), a connecting rod mechanism, a left spring damping mechanism (20), a right spring damping mechanism (21), a left driving shaft assembly (206) and a right driving shaft assembly (216); the linkage mechanism comprises a left driving rod (205) and a right driving rod (215); one end of the left driving rod (205) is connected with the driving disc (1), the other end of the left driving rod is hinged with one end of the left spring damping mechanism (20) through the left driving shaft assembly (206), and the other end of the left spring damping mechanism (20) is pivoted; one end of the right driving rod (215) is connected with the driving disc (1), the other end of the right driving rod is hinged with one end of the right spring damping mechanism (21) through the right driving shaft assembly (216), and the other end of the right spring damping mechanism (21) is pivoted; the left driving shaft assembly (206) and the right driving shaft assembly (216) are respectively in driving fit with a moving contact assembly of the automatic transfer switch;

When the energy storage operating mechanism is positioned at the second stable position, the driving disc (1) rotates towards the first power supply conduction direction R1 by external force, the driving disc (1) drives the left spring damping mechanism (20) to swing through the left driving rod (205) so as to store energy of the left spring damping mechanism (20), after the left spring damping mechanism (20) swings through a first critical point, the left spring damping mechanism (20) releases energy, the left spring damping mechanism (20) drives the left driving shaft assembly (206) to accelerate to move, the left driving shaft assembly (206) drives the movable contact assembly to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position;

When the energy storage operating mechanism is positioned at the second stable position, the driving disc (1) rotates in a second power supply conduction direction R2 opposite to the first power supply conduction direction R1 by external force, the driving disc (1) drives the right spring damping mechanism (21) to swing through the right driving rod (215), so that the right spring damping mechanism (21) stores energy, when the right spring damping mechanism (21) swings to pass through a second critical point, the right spring damping mechanism (21) releases energy, the right driving shaft assembly (216) is driven to accelerate to move by the right spring damping mechanism (21), the right driving shaft assembly (216) drives the movable contact assembly to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position.

2. The automatic transfer switch of claim 1, wherein: after the energy storage operating mechanism enters a first stable position from a second stable position, an external force enables the driving disc (1) to rotate towards a second power supply conducting direction R2, the driving disc (1) drives the left spring damping mechanism (20) to swing through the connecting rod assembly, so that the left spring damping mechanism (20) stores energy, when the left spring damping mechanism (20) swings to pass through a first critical point, the left spring damping mechanism (20) releases energy, the left spring damping mechanism (20) drives the left driving shaft assembly (206) to accelerate to move, the left driving shaft assembly (206) drives the movable contact assembly to rapidly break the first power supply and the load, and the energy storage operating mechanism enters the second stable position;

After the energy storage operating mechanism enters a third stable position from a second stable position, an external force enables the driving disc (1) to rotate towards a first power supply conducting direction R1, the driving disc (1) drives the right spring damping mechanism (21) to swing through the connecting rod mechanism, so that the right spring damping mechanism (21) stores energy, after the right spring damping mechanism (21) swings to pass through a second critical point, the right spring damping mechanism (21) releases energy, the right spring damping mechanism (21) drives the right driving shaft assembly (216) to accelerate to move, the right driving shaft assembly (216) drives the movable contact assembly to rapidly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

3. An automatic transfer switch according to claim 1 or 2, wherein: when the energy storage operating mechanism is at the second stable position, the automatic transfer switch is in a double-opening state; when the energy storage operating mechanism is positioned at a first stable position, the automatic transfer switch is positioned in a first power supply closing state; when the energy storage operating mechanism is in the third stable position, the automatic transfer switch is in a second power supply closing state.

4. An automatic transfer switch according to claim 3, wherein: the linkage mechanism also comprises a left connecting rod (204) and a right connecting rod (214); one end of the left connecting rod (204) is hinged with one end of the left spring damping mechanism (20) through the left driving shaft assembly (206), the other end of the left connecting rod is pivoted, one end of the right connecting rod (214) is hinged with one end of the right spring damping mechanism (21) through the right driving shaft assembly (216), and the other end of the right connecting rod is pivoted.

5. The automatic transfer switch of claim 1, wherein: after the energy storage operating mechanism enters a first stable position from a second stable position, an external force enables the driving disc (1) to rotate towards a second power supply conduction direction R2, the driving disc (1) drives the left spring damping mechanism (20) to swing through the left driving rod (205) so as to enable the left spring damping mechanism (20) to store energy, when the left spring damping mechanism (20) swings through a first critical point, the left spring damping mechanism (20) releases energy, the left spring damping mechanism (20) drives the left driving shaft assembly (206) to accelerate to move, the left driving shaft assembly (206) drives the movable contact assembly to rapidly break the first power supply and the load, and the energy storage operating mechanism enters the second stable position;

After the energy storage operating mechanism enters a third stable position from a second stable position, an external force enables the driving disc (1) to rotate towards a first power supply conduction direction R1, the driving disc (1) drives the right spring damping mechanism (21) to swing through the right driving rod (215) so that the right spring damping mechanism (21) stores energy, when the right spring damping mechanism (21) swings to pass through a second critical point, the right spring damping mechanism (21) releases energy, the right spring damping mechanism (21) drives the right driving shaft assembly (216) to accelerate to move, the right driving shaft assembly (216) drives the movable contact assembly to rapidly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

6. The automatic transfer switch of claim 1, wherein: the left driving rod (205) comprises a left driving rod front end (205 a) and a left driving rod rear end (205 b) which are respectively arranged at two ends of the left driving rod, the left driving rod front end (205 a) is provided with a left waist-shaped hole (2050), and the left driving rod rear end (205 b) is hinged with one end of the left spring damping mechanism (20) through a left driving shaft assembly (206); the right driving rod (215) comprises a right driving rod front end (215 a) and a right driving rod rear end (215 b) which are respectively arranged at two ends of the right driving rod, the right driving rod front end (215 a) is provided with a right kidney-shaped hole (2150), and the right driving rod rear end (215 b) is hinged with the right spring damping mechanism (21) through a right driving shaft assembly (216);

the driving disc (1) comprises a left crank (10) and a right crank (11) which are arranged on the driving disc, the left crank (10) is inserted into the left kidney-shaped hole (2050) and can slide back and forth in the left kidney-shaped hole (2050), the right crank (11) is inserted into the right kidney-shaped hole (2150) and can slide back and forth in the right kidney-shaped hole (2150).

7. The automatic transfer switch of claim 4, wherein: one end of the left connecting rod (204) and one end of the right connecting rod (214) are both pivoted through a first pivot (2021); the left spring damping mechanism (20), the left driving rod (205), the left connecting rod (204) and the left driving shaft assembly (206) are positioned on one side of a connecting line of the rotation centers of the first pivot (2021) and the driving disc (1), and the right spring damping mechanism (21), the right driving rod (215), the right connecting rod (214) and the right driving shaft assembly (216) are positioned on the other side of the connecting line of the rotation centers of the first pivot (2021) and the driving disc (1).

8. The automatic transfer switch of claim 6, wherein: the left spring damping mechanism (20) comprises a left spring (200), a left spring support (201) and a left pivot (202), wherein the left spring support (201) comprises a left support kidney-shaped hole which is arranged at one end of the left spring support and axially extends along the left spring support (201), the left pivot (202) is inserted into the left support kidney-shaped hole, the left spring support (201) is pivoted through the left pivot (202), the other end of the left spring support (201) is hinged with a left driving rod (205), the left spring (200) is sleeved on the left spring support (201), one end of the left spring support is connected with the left pivot (202), and the other end of the left spring support (201) is connected with one end of the left spring support (201) which is hinged with the left driving rod (205);

The right spring damping mechanism (21) comprises a right spring (210), a right spring support (211) and a right pivot (212), wherein the right spring support (211) comprises a right support kidney-shaped hole which is arranged at one end of the right spring support and axially extends along the right spring support (211), the right pivot (212) is inserted into the right support kidney-shaped hole, the right spring support (211) is pivoted through the right pivot (212), the other end of the right spring support (211) is hinged with a right driving rod (215), the right spring (210) is sleeved on the right spring support (211), one end of the right spring support is connected with the right pivot (212), and the other end of the right spring support (211) is connected with one end of the right spring support (211) which is hinged with the right driving rod (215).

9. The automatic transfer switch of claim 1, wherein: the energy storage operating mechanism further comprises a rotary table (4) pivoted in the middle, the rotary table (4) is coaxially linked with the movable contact assembly, the rotary table (4) comprises a left circular arc groove (40) and a right circular arc groove (41), the left circular arc groove (40) and the right circular arc groove (41) are symmetrically distributed on two sides of the rotation center of the rotary table (4), the left circular arc groove (40) comprises a left circular arc groove upper end (40 a) and a left circular arc groove lower end (40 b) which are respectively arranged at two ends of the rotary table, the right circular arc groove (41) comprises a right circular arc groove upper end (41 a) and a right circular arc groove lower end (41 b) which are respectively arranged at two ends of the rotary table, one end of a left driving shaft assembly (206) is arranged in the left circular arc groove (40), and one end of a right driving shaft assembly (216) is arranged in the right circular arc groove (41);

When the energy storage operating mechanism is positioned at the second stable position, the driving disc (1) rotates towards the first power supply conduction direction R1 by external force, the driving disc (1) drives the left spring damping mechanism (20) to swing through the left driving rod (205), so that the left spring damping mechanism (20) stores energy, when the left spring damping mechanism (20) swings to pass through a first critical point, the left spring damping mechanism (20) releases energy, the left spring damping mechanism (20) pushes the upper end (40 a) of the left arc groove through the left driving shaft assembly (206), so that the turntable (4) rotates in an accelerating way, and the turntable (4) drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly conduct the first power supply and the load, and the energy storage operating mechanism enters the first stable position;

when the energy storage operating mechanism is positioned at the second stable position, the driving disc (1) rotates towards the second power supply conduction direction R2 by external force, the driving disc (1) drives the right spring damping mechanism (21) to swing through the right driving rod (215), so that the right spring damping mechanism (21) stores energy, after the right spring damping mechanism (21) swings through a second critical point, the right spring damping mechanism (21) releases energy, the right spring damping mechanism (21) pushes the right arc groove upper end (41 a) through the right driving shaft assembly (216), the turntable (4) rotates in an accelerating way, the turntable (4) drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly conduct the second power supply and the load, and the energy storage operating mechanism enters the third stable position.

10. The automatic transfer switch of claim 9, wherein: after the energy storage operating mechanism enters a first stable position from a second stable position, an external force enables the driving disc (1) to rotate towards a second power supply conduction direction R2, the driving disc (1) drives the left spring damping mechanism (20) to swing through a left driving rod (205) so as to enable the left spring damping mechanism (20) to store energy, when the left spring damping mechanism (20) swings through a first critical point, the left spring damping mechanism (20) releases energy, the left spring damping mechanism (20) pushes the lower end (40 b) of the left arc groove through a left driving shaft assembly (206) so as to enable the turntable (4) to accelerate to rotate, the turntable (4) drives the moving contact assembly to rotate and enable the moving contact assembly to rapidly break the first power supply and the load, and the energy storage operating mechanism enters the second stable position;

after the energy storage operating mechanism enters a third stable position from a second stable position, external force enables the driving disc (1) to rotate towards the first power supply conduction direction R1, the driving disc (1) drives the right spring damping mechanism (21) to swing through the right driving rod (215), the right spring damping mechanism (21) is enabled to store energy, after the right spring damping mechanism (21) swings through a second critical point, the right spring damping mechanism (21) releases energy, the right spring damping mechanism (21) pushes the right arc groove lower end (41 b) through the right driving shaft assembly (216), the turntable (4) is enabled to accelerate to rotate, the turntable (4) drives the moving contact assembly to rotate and enables the moving contact assembly to rapidly break the second power supply and the load, and the energy storage operating mechanism enters the second stable position.

11. The automatic transfer switch of claim 9, wherein: the energy storage operating mechanism also comprises a motor (9), wherein the motor (9) is connected with the driving disc (1) and provides external force for driving the driving disc (1) to rotate; the motor (9), the driving disc (1) and the rotary disc (4) are sequentially arranged, the left spring damping mechanism (20) and the right spring damping mechanism (21) are respectively arranged on two sides of the driving disc (1) and between the motor (9) and the rotary disc (4), and the connecting rod mechanism is arranged on one side of the driving disc (1) and between the left spring damping mechanism (20) and the right spring damping mechanism (21).

12. The automatic transfer switch of claim 6, wherein: the distance between the left crank (10) and the rotation center of the driving disc (1) is the same as the distance between the right crank (11) and the rotation center of the driving disc (1); and an included angle between a connecting line of the left crank (10) and the rotation center of the driving disc (1) and a connecting line of the right crank (11) and the rotation center of the driving disc (1) is 180 ^o.

13. The automatic transfer switch of claim 6, wherein: the driving disc (1) comprises a first disc (1 a) and a second disc (1 b) which are oppositely arranged, the first disc (1 a) and the second disc (1 b) are identical in structure, the first disc (1 a) and the second disc (1 b) are connected through a plurality of connecting shafts (12), two ends of a left crank (10) and a right crank (11) are respectively connected with the first disc (1 a) and the second disc (1 b), the connecting shafts (12) are located on one side of the rotation center of the driving disc (1), and the left crank (10) and the right crank (11) are located on the other side of the rotation center of the driving disc (1).