CN113270281A - Automatic switching device and circuit for bipolar power supply - Google Patents

Abstract

The invention provides a bipolar power supply automatic transfer switch device and a circuit, comprising: the circuit breaker comprises a controller assembly, a common circuit breaker, a standby circuit breaker and an operating mechanism assembly; the operating mechanism assembly is connected with the common circuit breaker and the standby circuit breaker, and the controller assembly is connected with the common circuit breaker, the standby circuit breaker and the operating mechanism assembly; the common circuit breaker is provided with a second handle, the standby circuit breaker is provided with a third handle, the operating mechanism assembly controls the common circuit breaker to be switched on and switched off through the second handle, and the operating mechanism assembly controls the standby circuit breaker to be switched on and switched off through the third handle; the device is characterized in that the hard copper plate is used as a connecting plate, a built-in hidden wiring mode is adopted, and the connecting plate is always connected with the wiring board of the switch, so that the problems of missing connection and disconnection during secondary wiring of a user are avoided.

Description

Automatic switching device and circuit for bipolar power supply

Technical Field

The present invention relates to power switching devices, and more particularly, to a two-pole power automatic switching device and circuit.

Background

A power supply switch is a power supply circuit switching device for switching a load circuit from one power supply to another power supply. And is divided into manual operation and automatic operation.

An automatic power supply change-over switch, referred to as an ATS, can automatically switch to a standby power supply when a power failure or power failure occurs, and thus can continue normal power supply. ATS is commonly used in hospitals, banks, telecommunications rooms, buildings, military facilities, etc., where emergency power supply systems are needed.

The traditional power supply connecting plate adopts a connection mode that a flexible conductor is exposed outside a shell, and the problems of easy connection missing, unreliable contact between a connecting wire and a switch wiring board, complex installation process and the like exist in the secondary wiring process of a user. Along with the improvement of the requirement of the power utilization system on the power supply quality, in a single-phase power supply terminal power supply system, the automatic power supply switching device is required to be equipped, the continuity and the reliability of power supply are realized, and large-area power failure is avoided.

Patent document CN202384214U discloses a dual power supply automatic transfer switch, which includes: the current-carrying isolating electric appliance comprises a plurality of poles, each pole comprises an arc-extinguishing cover loading insulating base, a static contact mechanism and a moving contact mechanism which are respectively connected with the arc-extinguishing cover loading insulating base, and a cover body which is used for loading the arc-extinguishing cover into the insulating base, integrating the static contact mechanism and the moving contact mechanism to form a single pole; the current-carrying isolating electric appliance also comprises a rotating shaft connected with the moving contact mechanism; the mechanical linkage mechanism is connected with the rotating shaft and used for completing mechanical linkage between every two poles through the rotating shaft; and the control system is used for controlling the action of the mechanical linkage mechanism.

Patent document CN101699596A relates to a dual power supply change-over switch, which includes two switching mechanisms and a moving contact operating mechanism for switching on and off the two switching mechanisms, and the two switching mechanisms are symmetrically disposed on two sides of the moving contact operating mechanism, switching on of a moving contact group and a fixed contact of one switching mechanism is realized through different rotation directions of the moving contact operating mechanism, and switching off of the moving contact group and the fixed contact of the other switching mechanism is realized, in addition, an upper moving contact and a lower moving contact are disposed on the moving contact, the fixed contact includes an upper fixed contact and a lower fixed contact for switching on and off corresponding to the upper moving contact and the lower moving contact, and the lower fixed contact is a bent rod, and double breaking is realized by setting an angle range of a horizontal section of the lower fixed contact and an inclined section of the lower fixed contact of the bent rod to be 100-130 degrees.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a bipolar power supply automatic switching device and a circuit.

The invention provides a bipolar power supply automatic transfer switch device, which comprises: the circuit breaker comprises a controller assembly, a common circuit breaker, a standby circuit breaker and an operating mechanism assembly;

the operating mechanism assembly is connected with the common circuit breaker and the standby circuit breaker, and the controller assembly is connected with the common circuit breaker, the standby circuit breaker and the operating mechanism assembly;

the common circuit breaker is provided with a second handle, the standby circuit breaker is provided with a third handle, the operating mechanism assembly controls the common circuit breaker to be switched on and switched off through the second handle, and the operating mechanism assembly controls the standby circuit breaker to be switched on and switched off through the third handle;

a first handle is arranged on one side of the operating mechanism assembly, the common circuit breaker and the standby circuit breaker are manually switched through the first handle, and a motor operating component is arranged on the other side of the operating mechanism assembly, and the common circuit breaker and the standby circuit breaker are automatically switched through the motor operating component;

the motor operating part is connected with the controller assembly and selects a manual switching state or an automatic switching state through the controller assembly;

the controller assembly has the functions of under-voltage, open-phase, voltage-loss protection and parameter setting;

the common circuit breaker and the standby circuit breaker have overload and short-circuit protection functions.

Preferably, the operating mechanism assembly further comprises: the left push rod, the right rotating wheel, the main rotating shaft, the left rotating wheel, the left cam, the connecting rod, the speed reduction transmission part, the main cam and the right cam;

the left cam and the right cam are vertically arranged on two sides of the main cam, and one of the left cam and the right cam is pushed to rotate through the rotation of the main cam;

a first groove is formed in the edge, facing one side of the right cam, of the left cam, a second groove is formed in the edge, facing one side of the left cam, of the right cam, and the connecting rod is installed between the first groove and the second groove;

when the left cam or the right cam rotates, the connecting rod is driven to move, the connecting rod is connected with the first groove or the second groove in a matched mode through movement, and the left cam and the right cam are connected in a matched mode to achieve interlocking;

one side of the left cam, which is back to the right cam, is connected with one side of the left rotating wheel, the other side of the left rotating wheel is connected with the left push rod, one side of the right cam, which is back to the left cam, is connected with one side of the right rotating wheel, and the other side of the right rotating wheel is connected with the right push rod;

the middle of the main cam is vertically connected with one end of the main rotating shaft, the other end of the main rotating shaft is connected with the first handle, and the first handle drives the main cam to rotate through the main rotating shaft;

the main cam is installed in one side of the speed reduction transmission part and is linked with the speed reduction transmission part, and the other side of the speed reduction transmission part is installed with the motor operation part and is driven to rotate by the motor operation part.

Preferably, the second handle is mounted at the upper end of the common breaker, and the second handle is mounted in the left push rod and driven by the left push rod to move;

the third handle is arranged at the upper end of the standby circuit breaker, and the third handle is arranged in the right push rod and is driven by the right push rod to move;

the common circuit breaker and the standby circuit breaker form a switching-on/off switch with three logic states, wherein the first logic state is as follows: the common breaker is switched on, and the standby breaker is switched off;

the second logic state is: the common breaker is opened, and the standby breaker is closed;

the third logic state is: the common breaker is opened, and the standby breaker is opened;

the interlock prevents the common circuit breaker and the backup circuit breaker from being switched on simultaneously.

Preferably, the operating mechanism assembly is mounted on a mechanism bracket, and the common circuit breaker and the standby circuit breaker are mounted on two sides of the mechanism bracket;

the right rotating wheel and the left rotating wheel are arranged on the mechanism bracket and are allowed to freely rotate relative to the mechanism bracket;

a common auxiliary switch and a standby auxiliary switch are fixedly installed on the upper side of the mechanism support, when the left rotating wheel rotates, the left rotating wheel pushes the common auxiliary switch, when the right rotating wheel rotates, the right rotating wheel pushes the standby auxiliary switch, and the common auxiliary switch and the standby auxiliary switch output node signals;

a second supporting plate is arranged between the common circuit breaker and the operating mechanism assembly, and a first supporting plate is arranged between the standby circuit breaker and the operating mechanism assembly;

the common breaker backs to the second support installed on one side of the operating mechanism assembly, and the standby breaker backs to the first support installed on one side of the operating mechanism assembly.

Preferably, the lower side of the mechanism bracket is connected with a mechanism lower cover through a clamping hook;

the mechanism lower cover, the common circuit breaker and the standby circuit breaker are arranged on a bottom plate, a bottom cover is arranged on one side of the bottom plate, and a circuit board is arranged between the bottom plate and the bottom cover;

the first support and the second support are fixedly arranged on the bottom plate, L-shaped hooks are arranged on the upper sides of the first support and the second support, and the standby circuit breaker and the common circuit breaker are respectively fixed through the L-shaped hooks;

the first support is connected with and supports the right push rod to rotate, and the second support is connected with and supports the left push rod to rotate.

Preferably, the standby power supply component and the common power supply component are arranged on the circuit board and realize the power supply function through the circuit board;

fuses are arranged in the standby power supply component and the common power supply component and play a role in overcurrent protection.

Preferably, one side of the common circuit breaker is provided with a common wire inlet port, the other side of the common circuit breaker is provided with a common wire outlet port, one side of the standby circuit breaker is provided with a standby wire inlet port, and the other side of the standby circuit breaker is provided with a standby wire outlet port;

the common breaker is connected with a load interface through the common outlet port, and the standby breaker is connected with the load interface through the standby outlet port;

the common circuit breaker is connected with a common power supply interface through the common wire inlet port, and the standby circuit breaker is connected with a standby power supply interface through the standby wire inlet port;

a first upper wiring port is arranged on one side of the common inlet port, a second upper wiring port is arranged on one side of the standby breaker, the common inlet port and the standby inlet port allow installation of cable flexible conductors, and the first upper wiring port and the second upper wiring port allow installation of a hard bus bar;

the common circuit breaker is connected with the circuit board through a third connecting plate and a fourth connecting plate, the third connecting plate is fixed on the circuit board through a third fastener, and the fourth connecting plate is fixed on the circuit board through a fourth fastener;

the standby circuit breaker is connected with the circuit board through a first connecting plate and a second connecting plate, the first connecting plate is fixed on the circuit board through a first fastener, and the second connecting plate is fixed on the circuit board through a second fastener;

the circuit board passes through first connecting plate with the second connecting plate realizes getting the electric function from stand-by power source interface, the circuit board passes through the third connecting plate with the fourth connecting plate realizes getting the electric function from power source interface commonly used.

Preferably, the controller assembly is mounted on one side of the operating mechanism assembly, the controller assembly is adjacent to the common circuit breaker and the standby circuit breaker, and the controller assembly is connected with the circuit board and realizes a signal input and output function through the circuit board;

a signal output part is arranged on one side of the controller assembly, which is opposite to the operating mechanism assembly, and a logic control node is input and output through the signal output part;

the controller subassembly top setting includes: the power supply control device comprises a first power supply indicator lamp, a second power supply indicator lamp, a first state indicator lamp, a control switch, a second state indicator lamp, a first adjusting knob and a second adjusting knob;

when the common power supply operates normally, the second power supply indicator lamp is turned on, and when the common power supply operates in a fault, the second power supply indicator lamp is turned off;

when the standby power supply operates normally, the first power supply indicator lamp is turned on, and when the standby power supply operates in a fault, the first power supply indicator lamp is turned off;

when the common breaker is switched on, the first status indicator lamp is turned on, and when the common breaker is switched off, the first status indicator lamp is turned off;

when the standby circuit breaker is switched on, the second state indicator lamp is turned on, and when the standby circuit breaker is switched off, the second state indicator lamp is turned off;

the first adjusting knob and the second adjusting knob are set to be adjustable resistance devices, the common circuit breaker passes through the first adjusting knob adjusting action time delay, and the standby circuit breaker passes through the second adjusting knob adjusting action time delay.

Preferably, a left shell is installed outside the common circuit breaker and protects the common circuit breaker, the left push rod, the third connecting plate and the fourth connecting plate through the left shell;

a right shell is arranged on the outer side of the standby circuit breaker and protects the standby circuit breaker, the right push rod, the first connecting plate and the second connecting plate through the right shell;

the mechanism lower cover upper side installation mechanism upper cover, the mechanism upper cover with controller subassembly top meets.

The invention also provides a circuit of the bipolar power supply automatic switching device, wherein a CA end and a CN end are set as common power supply voltage input ports, one end of the CA end is connected with one end of a resistor R1, one end of the CN end is connected with one end of a resistor R5, the other end of the resistor R1 is connected with a first interface of a rectifying device D1, the other end of the resistor R5 is connected with a second interface of the rectifying device D1, and a third interface of the rectifying device D1 is connected with a ground wire GND 1;

the fourth interface of the rectifying device D1 is respectively connected to one end of a resistor R2, one end of a resistor R3 and the anode of a capacitor C1, the other end of the resistor R2 is connected to pin 1 of a power supply voltage stabilization chip IC1, the cathode of the capacitor C1 is connected to the ground GND1, the other end of the resistor R3 is respectively connected to one end of a resistor R4 and pin 2 of the power supply voltage stabilization chip IC1, the other end of the resistor R4 is connected to the ground GND1, pin 4 of the power supply voltage stabilization chip IC1 is connected to the ground GND1, and pin 3 of the power supply voltage stabilization chip IC1 is connected to the ground GND 1;

a pin 1 of the power supply voltage stabilization chip IC1 is connected with a pin 1 of an optical coupler U1, a pin 3 of the power supply voltage stabilization chip IC1 is connected with a pin 2 of the optical coupler U1, a pin 3 of the optical coupler U1 is connected with a CYV port, the CYV port is a common power supply fault state input port, a pin 4 of the optical coupler U1 is connected with a power supply VCC port, and the CYV port is connected into a chip MCU;

a BA end and a BN end are set as standby power supply voltage input ports, one end of the BA end is connected with one end of a resistor R6, one end of the BN end is connected with one end of a resistor R10, the other end of the resistor R6 is connected with a first interface of a rectifying device D3, the other end of the resistor R10 is connected with a second interface of the rectifying device D3, and a third interface of the rectifying device D3 is connected with a ground wire GND 2;

the fourth interface of the rectifying device D3 is respectively connected to one end of a resistor R7, one end of a resistor R8 and the anode of a capacitor C2, the other end of the resistor R7 is connected to pin 1 of a power supply voltage stabilization chip IC2, the cathode of the capacitor C2 is connected to the ground GND2, the other end of the resistor R8 is respectively connected to one end of a resistor R9 and pin 2 of the power supply voltage stabilization chip IC2, the other end of the resistor R9 is connected to the ground GND2, pin 4 of the power supply voltage stabilization chip IC2 is connected to the ground GND2, and pin 3 of the power supply voltage stabilization chip IC2 is connected to the ground GND 2;

the power supply voltage stabilization chip IC 2's 1 foot connects optical coupler U2's 1 foot, power supply voltage stabilization chip IC 2's 3 feet are connected optical coupler U2's 2 feet, optical coupler U2's 3 feet are connected the BYV port, the BYV port is stand-by power supply fault state input port, optical coupler U2's 4 feet are connected the power VCC port, the BYV port insert extremely in the chip MCU.

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

1. the controller assembly adopts an optical coupler voltage sampling technology, and has strong anti-electromagnetic interference capability.

2. The device has the functions of undervoltage, phase loss, voltage loss, overload and short-circuit protection, and realizes the omnibearing protection of the power end fault and the load end fault.

3. The device is characterized in that the hard copper plate is used as a connecting plate, a built-in hidden wiring mode is adopted, and the connecting plate is always connected with the wiring board of the switch, so that the problems of missing connection and disconnection during secondary wiring of a user are avoided.

4. The device has complete protection function, small volume and high cost performance.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an automatic transfer switch device for a two-pole power supply;

FIG. 2 is a schematic structural view of the left and right housings and the mechanism cover removed;

FIG. 3 is a schematic structural view of the left and right housings removed and rotated 180 degrees;

FIG. 4 is a schematic view of the operating mechanism assembly;

FIG. 5 is a schematic view of the left housing;

FIG. 6 is a schematic view of the right housing;

FIG. 7 is a schematic view of the mechanism cover structure;

FIG. 8 is a schematic view of the mechanism lower cover structure;

FIG. 9 is a schematic view of the mechanism bracket structure;

FIG. 10 is a schematic view of a connection plate;

fig. 11 is a schematic structural diagram of a conventional circuit breaker;

figure 12 is a schematic diagram of a backup circuit breaker configuration;

FIG. 13 is a schematic diagram of a controller assembly;

FIG. 14 is a schematic circuit diagram of the controller assembly;

shown in the figure:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1

As shown in fig. 1 to 3, a two-pole power supply automatic transfer switching apparatus includes: a controller assembly 6, a common circuit breaker 9, a standby circuit breaker 15 and an operating mechanism assembly; the operating mechanism assembly is connected with the common circuit breaker 9 and the standby circuit breaker 15, and the controller assembly 6 is connected with the common circuit breaker 9, the standby circuit breaker 15 and the operating mechanism assembly; the second handle 45 is arranged on the common breaker 9, the third handle 46 is arranged on the standby breaker 15, the operating mechanism assembly controls the common breaker 9 to be switched on and switched off through the second handle 45, and the operating mechanism assembly controls the standby breaker 15 to be switched on and switched off through the third handle 46; a first handle 7 is arranged on one side of the operating mechanism assembly, and the common circuit breaker 9 and the standby circuit breaker 15 are manually switched through the first handle 7, and a motor operating part 42 is arranged on the other side of the operating mechanism assembly, and the common circuit breaker 9 and the standby circuit breaker 15 are automatically switched through the motor operating part 42; the motor operating part 42 is connected to the controller assembly 6 and selects a manual switching state or an automatic switching state through the controller assembly 6. A second handle 45 is arranged at the upper end of the common breaker 9, and the second handle 45 is arranged in the left push rod 8 and is driven by the left push rod 8 to move; the upper end of the standby circuit breaker 15 is provided with a third handle 46, and the third handle 46 is arranged in the right push rod 17 and is driven by the right push rod 17 to move; the on-off switching of the common breaker 9 and the standby breaker 15 has three logic states, and the first logic state is as follows: a common breaker 9 is switched on, and a standby breaker 15 is switched off; the second logic state is: the common breaker 9 is opened, and the standby breaker 15 is closed; the third logic state is: the common breaker 9 is opened, and the standby breaker 15 is opened; the interlock prevents the normal breaker 9 and the backup breaker 15 from being closed at the same time.

The operating mechanism assembly is arranged on a mechanism bracket 10, and the common circuit breaker 9 and the standby circuit breaker 15 are arranged on two sides of the mechanism bracket 10; the right wheel 19 and the left wheel 21 are mounted on the mechanism bracket 10 and are allowed to freely rotate relative to the mechanism bracket 10; a common auxiliary switch 12 and a standby auxiliary switch 13 are fixedly installed on the upper side of the mechanism support 10, the common auxiliary switch 12 and the standby auxiliary switch 13 output node signals, when the left rotating wheel 21 rotates, the left rotating wheel 21 pushes the common auxiliary switch 12, and when the right rotating wheel 19 rotates, the right rotating wheel 19 pushes the standby auxiliary switch 13; a second supporting plate 38 is arranged between the common circuit breaker 9 and the operating mechanism assembly, and a first supporting plate 18 is arranged between the standby circuit breaker 15 and the operating mechanism assembly; a second bracket 37 is arranged on one side of the common circuit breaker 9, which is opposite to the operating mechanism assembly, and a first bracket 16 is arranged on one side of the standby circuit breaker 15, which is opposite to the operating mechanism assembly; a controller assembly 6 is arranged on one side of the operating mechanism assembly, the controller assembly 6 is adjacent to the common circuit breaker 9 and the standby circuit breaker 15, and the controller assembly 6 is connected with a circuit board 33 and realizes the signal input and output functions through the circuit board 33;

as shown in fig. 4, the operating mechanism assembly further includes: the left push rod 8, the right push rod 17, the right rotating wheel 19, the main rotating shaft 20, the left rotating wheel 21, the left cam 39, the connecting rod 40, the speed reduction transmission part 41, the main cam 43 and the right cam 44; a left cam 39 and a right cam 44 are vertically arranged on two sides of the main cam 43, and the left cam 39 and the right cam 44 push one of the cams to rotate through the rotation of the main cam 43; a first groove is formed in one side edge, facing the right cam 44, of the left cam 39, a second groove is formed in one side edge, facing the left cam 39, of the right cam 44, and a connecting rod 40 is installed between the first groove and the second groove; when the left cam 39 or the right cam 44 rotates, the connecting rod 40 is driven to move, the connecting rod 40 is connected with the first groove or the second groove in a matched mode through moving, and the left cam 39 and the right cam 44 are connected in a matched mode to achieve interlocking; one side of the left cam 39, which is back to the right cam 44, is connected with one side of the left rotating wheel 21, the other side of the left rotating wheel 21 is connected with the left push rod 8, one side of the right cam 44, which is back to the left cam 39, is connected with one side of the right rotating wheel 19, and the other side of the right rotating wheel 19 is connected with the right push rod 17; the middle of the main cam 43 is vertically connected with one end of the main rotating shaft 20, the other end of the main rotating shaft 20 is connected with the first handle 7, and the first handle 7 drives the main cam 43 to rotate through the main rotating shaft 20; the main cam 43 is installed in one side of the reduction gear part 41 and is interlocked with the reduction gear part 41, and the other side of the reduction gear part 41 is installed with the motor operating part 42 and is driven to rotate by the motor operating part 42.

As shown in fig. 5 to 12, the lower side of the mechanism bracket 10 is connected with the mechanism lower cover 4 through a hook; the mechanism lower cover 4, the common circuit breaker 9 and the spare circuit breaker 15 are arranged on the bottom plate 3, a bottom cover 36 is arranged on one side of the bottom plate 3, and a circuit board 33 is arranged between the bottom plate 3 and the bottom cover 36; a left shell 1 is arranged on the outer side of the common circuit breaker 9, and the common circuit breaker 9, a left push rod 8, a third connecting plate 30 and a fourth connecting plate 34 are protected by the left shell 1; the right shell 5 is arranged outside the spare circuit breaker 15, and the spare circuit breaker 15, the right push rod 17, the first connecting plate 23 and the second connecting plate 24 are protected by the right shell 5; the upper cover 2 is arranged on the upper side of the mechanism lower cover 4, and the mechanism upper cover 2 is connected with the top of the controller component 6. The outer side protection parts of the device are all made of engineering plastics.

The first bracket 16 and the second bracket 37 are fixedly arranged on the bottom plate 3, and L-shaped hooks are arranged on the upper sides of the first bracket 16 and the second bracket 37 and are used for fixing the standby circuit breaker 15 and the common circuit breaker 9 respectively; the first bracket 16 is connected with and supports the right push rod 17 to rotate, and the second bracket 37 is connected with and supports the left push rod 8 to rotate. The standby power supply part 28 and the common power supply part 29 are arranged on the circuit board 33 and realize the power supply function through the circuit board 33; the standby power supply unit 28 and the normal power supply unit 29 are internally provided with fuses and perform overcurrent protection. A common wire inlet port 35 is arranged on one side of the common breaker 9, a common wire outlet port 11 is arranged on the other side of the common breaker 9, a standby wire inlet port 25 is arranged on one side of the standby breaker 15, and a standby wire outlet port 14 is arranged on the other side of the standby breaker 15; the common breaker 9 is connected with a load interface through a common outgoing port 11, and the standby breaker 15 is connected with the load interface through a standby outgoing port 14; the common breaker 9 is connected with a common power supply interface through a common incoming line port 35, and the standby breaker 15 is connected with a standby power supply interface through a standby incoming line port 25; a first upper wiring port 54 is arranged on one side of the common inlet port 35, a second upper wiring port 55 is arranged on one side of the standby circuit breaker 15, the common inlet port 35 and the standby inlet port 25 allow for installation of cable flexible conductors, and the first upper wiring port 54 and the second upper wiring port 55 allow for installation of hard busbars; the first upper wiring port 54 is connected with the circuit board 33 through a third connecting plate 30 and a fourth connecting plate 34, the third connecting plate 30 is fixed on the circuit board 33 through a third fastener 31, and the fourth connecting plate 34 is fixed on the circuit board 33 through a fourth fastener 32; the second upper wiring port 55 is connected to the circuit board 33 through the first connecting plate 23 and the second connecting plate 24, the first connecting plate 23 is fixed to the circuit board 33 through the first fastening member 26, and the second connecting plate 24 is fixed to the circuit board 33 through the second fastening member 27; the circuit board 33 realizes the function of getting power from the standby power supply interface through the first connecting plate 23 and the second connecting plate 24, and the circuit board 33 realizes the function of getting power from the common power supply interface through the third connecting plate 30 and the fourth connecting plate 34.

As shown in fig. 13, the controller assembly 6 is provided with a signal output part 22 at the side opposite to the operating mechanism assembly and inputs and outputs a logic control node through the signal output part 22; the controller assembly 6 top set includes: a first power indicator 47, a second power indicator 48, a first status indicator 49, a control switch 50, a second status indicator 51, a first adjustment knob 52 and a second adjustment knob 53; when the common power supply operates normally, the second power supply indicator lamp 48 is turned on, and when the common power supply operates in a fault, the second power supply indicator lamp 48 is turned off; when the standby power supply operates normally, the first power supply indicator lamp 47 is turned on, and when the standby power supply operates in a fault, the first power supply indicator lamp 47 is turned off; when the common breaker 9 is switched on, the first status indicator lamp 49 is turned on, and when the common breaker 9 is switched off, the first status indicator lamp 49 is turned off; when the standby breaker 15 is switched on, the second status indicator lamp 51 is turned on, and when the standby breaker 15 is switched off, the second status indicator lamp 51 is turned off; the normal circuit breaker 9 adjusts the action delay through the first adjusting knob 52, and the standby circuit breaker 15 adjusts the action delay through the second adjusting knob 53. A coil instantaneous tripping system assembly and a bimetallic tripping system assembly are arranged in the common circuit breaker 9 and the standby circuit breaker 15, and the short-circuit protection function is realized through the coil instantaneous tripping system assemblies in the common circuit breaker 9 and the standby circuit breaker 15; the overload protection function is realized by the double-gold tripping system components in the common circuit breaker 9 and the standby circuit breaker 15.

As shown in fig. 14, a circuit of the two-pole power supply automatic switching device: the CA end and the CN end are set as common power supply voltage input ports, one end of the CA end is connected with one end of a resistor R1, one end of the CN end is connected with one end of a resistor R5, the other end of the resistor R1 is connected with a first interface of a rectifying device D1, the other end of the resistor R5 is connected with a second interface of the rectifying device D1, and a third interface of the rectifying device D1 is connected with a ground wire GND 1; a fourth interface of the rectifying device D1 is respectively connected with one end of a resistor R2, one end of a resistor R3 and the anode of a capacitor C1, the other end of the resistor R2 is connected with a pin 1 of a power supply voltage stabilization chip IC1, the cathode of the capacitor C1 is connected with a ground wire GND1, the other end of the resistor R3 is respectively connected with one end of a resistor R4 and a pin 2 of the power supply voltage stabilization chip IC1, the other end of the resistor R4 is connected with a ground wire GND1, a pin 4 of the power supply voltage stabilization chip IC1 is connected with a ground wire GND1, and a pin 3 of the power supply voltage stabilization chip IC1 is connected with a ground wire GND 1; a pin 1 of a power supply voltage stabilization chip IC1 is connected with a pin 1 of an optical coupler U1, a pin 3 of a power supply voltage stabilization chip IC1 is connected with a pin 2 of an optical coupler U1, a pin 3 of the optical coupler U1 is connected with a CYV port, a pin 4 of an optical coupler U1 is connected with a power supply VCC port, and a CYV port is connected into a chip MCU;

the BA end and the BN end are set as standby power supply voltage input ports, one end of the BA end is connected with one end of a resistor R6, one end of the BN end is connected with one end of a resistor R10, the other end of the resistor R6 is connected with a first interface of a rectifying device D3, the other end of the resistor R10 is connected with a second interface of the rectifying device D3, and a third interface of the rectifying device D3 is connected with a ground wire GND 2; a fourth interface of the rectifying device D3 is respectively connected with one end of a resistor R7, one end of a resistor R8 and the anode of a capacitor C2, the other end of the resistor R7 is connected with a pin 1 of a power supply voltage stabilization chip IC2, the cathode of the capacitor C2 is connected with a ground wire GND2, the other end of the resistor R8 is respectively connected with one end of a resistor R9 and a pin 2 of a power supply voltage stabilization chip IC2, the other end of a resistor R9 is connected with a ground wire GND2, a pin 4 of the power supply voltage stabilization chip IC2 is connected with a ground wire GND2, and a pin 3 of the power supply voltage stabilization chip IC2 is connected with a ground wire GND 2; a pin 1 of a power supply voltage stabilization chip IC2 is connected with a pin 1 of an optical coupler U2, a pin 3 of a power supply voltage stabilization chip IC2 is connected with a pin 2 of the optical coupler U2, a pin 3 of the optical coupler U2 is connected with a BYV port, a pin 4 of the optical coupler U2 is connected with a power supply VCC port, and the BYV port is connected into a chip MCU.

The resistor, the rectifier device and the capacitor device form a voltage sampling circuit, and the resistor and the chip form a voltage detection circuit to realize undervoltage, open-phase and voltage loss fault detection; the first adjusting knob and the second adjusting knob of the controller assembly 6 realize the setting of the action delay threshold.

Example 2

Example 2 is a preferred example of example 1.

The device comprises a left shell 1, a mechanism upper cover 2, a bottom plate 3, a mechanism lower cover 4, a right shell 5, a controller assembly 6, a first handle 7, a common circuit breaker 9 and the like; the left shell 1, the right shell 5, the controller assembly 6, the first handle 7 and the mechanism lower cover 4 are installed on the bottom plate 3 in a combined mode, the first handle 7 can rotate freely, and the first handle 7 mainly serves to achieve a manual operation function.

As shown in fig. 2, the normal circuit breaker 9 is an execution main switch, the left push rod 8 is connected with the left wheel 21, the left push rod 8 is connected with the second handle 45, and the normal circuit breaker 9 is switched on and off through the action of the left wheel 21; the right rotating wheel 19 is connected with the right push rod 17, the right push rod 17 is connected with the third handle 46, and the standby circuit breaker 15 is switched on and off through the action of the right rotating wheel 19; the common auxiliary switch 12, the standby auxiliary switch 13, the right steering wheel 19 and the left steering wheel 21 are connected with the mechanism support 10, the common auxiliary switch 12 and the standby auxiliary switch 13 are fixed in the mechanism support 10, the common auxiliary switch 12 and the standby auxiliary switch 13 can output node signals, and the right steering wheel 19 and the left steering wheel 21 can freely rotate on the mechanism support 10; the first bracket 16 is fixedly arranged on the bottom plate 3, the first bracket 16 is connected with the right push rod 17, the first bracket 16 supports the right push rod 17 to rotate, the first bracket 16 is connected with the standby circuit breaker 15 through an L-shaped hook of the first bracket, and the first bracket 16 plays a role in fixing the standby circuit breaker 15; the common outlet port 11 is an outlet port of the common breaker 9 and is used for connecting a load interface, and the spare outlet port 14 is an outlet port of the spare breaker 15 and is used for connecting the load interface.

As shown in fig. 3, the signal output part 22 is an input/output port of the controller assembly 6, through which the controller assembly 6 can input/output a logical control node; the common incoming line port 35 is a power input interface of the common breaker 9 and is used for connecting a power supply, and the standby incoming line port 25 is a power input interface of the standby breaker 9 and is used for connecting the power supply; the first connecting plate 23 and the second connecting plate 24 are connected with the standby circuit breaker 15, the first connecting plate 23 and the second connecting plate 24 are power-taking parts and achieve the function of taking power from a standby power supply port, the first connecting plate 23 and the second connecting plate 24 are connected through a first fastener 26 and a second fastener 27 and fixed on the circuit board 33, and the circuit board 33 achieves the purpose of taking power from the standby power supply through the first connecting plate 23 and the second connecting plate 24; the third connecting plate 30 and the fourth connecting plate 34 are connected with the common breaker 9, the third connecting plate 30 and the fourth connecting plate 34 are power-taking parts, so that the function of taking power from a common power port is realized, the third connecting plate 30 and the fourth connecting plate 34 are connected through a third fastener 31 and a fourth fastener 32 and are fixed on a circuit board 33, and the circuit board 33 realizes the power taking of a common power through the third connecting plate 30 and the fourth connecting plate 34; the circuit board 33 is connected with the bottom plate 3 and the bottom cover 36, the circuit board 33 is connected with the controller assembly 6, and the circuit board 33 mainly realizes the functions of power supply and signal input and output; the standby power supply component 28 and the common power supply component 29 are fixed in the circuit board 33, the standby power supply component 28 is a standby power supply electricity taking component, a tubular fuse is embedded in the standby power supply electricity taking component to play an overcurrent protection role, and the common power supply component 29 is a common power supply electricity taking component, a tubular fuse is embedded in the common power supply electricity taking component to play an overcurrent protection role; the common inlet port 35 is an input port of the common breaker 9 and is used for connecting a common power supply interface, and the standby inlet port 25 is an input port of the standby breaker 15 and is used for connecting a standby power supply interface.

As shown in fig. 4, if the controller assembly 6 is in a manual state, the first handle 7 can be operated to realize manual switching of the two power supplies, and if the controller assembly 6 is in an automatic state, the motor operating part 42 can be used to control to realize automatic switching of the two power supplies; the operating mechanism component is fixed through a mechanism bracket 10, a first handle 7 and a main cam 43 are connected through a main rotating shaft 20, when the first handle 7 rotates, the main rotating shaft 20 simultaneously moves in a linkage manner, and the main rotating shaft 20 drives the main cam 43 to rotate; the main cam 43 drives the left cam 39 to rotate when moving, and simultaneously the left cam 39 drives the left rotating wheel 21 and the left push rod 8 to rotate in a linkage manner, so that the on-off control of the common breaker 9 is realized; the main cam 43 drives the right cam 44 to rotate when moving, and meanwhile, the right cam 44 drives the right rotating wheel 19 and the right push rod 17 to rotate in a linkage manner, so that the switching-on and switching-off control of the standby circuit breaker 15 is realized; in order to prevent the common circuit breaker 9 and the spare circuit breaker 15 from being switched on simultaneously, the left cam 39 and the right cam 44 are interlocked through the connecting rod 40 when rotating, and because the left cam 39 and the right cam 44 are provided with grooves, after the connecting rod 40 moves to a certain position, one end of the connecting rod is in fit connection with the grooves of the left cam 39 or the right cam 44, so that the left cam 39 and the right cam 44 are interlocked; when the controller assembly 6 is in an automatic state, the motor operating part 42 drives the speed reduction transmission part 41 to rotate, the main cam 43 is linked with the driving rotating shaft of the speed reduction transmission part 41, the motor operating part 42 is operated and controlled through the controller assembly 6, and the main cam 43 is driven to rotate forwards and backwards through controlling the forward and reverse rotation of the motor operating part 42, so that the automatic switching of the common circuit breaker 9 and the standby circuit breaker 15 is realized.

As shown in fig. 5 and 6, the left housing 1 and the right housing 5 are fixedly installed on the bottom plate 3, the left housing 1 serves to protect the left push rod 8, the common breaker 9, the third connecting plate 30 and the fourth connecting plate 34, and the right housing 5 serves to protect the right push rod 17, the spare breaker 15, the first connecting plate 23 and the second connecting plate 24.

Fig. 10 is a shape structure of a first connecting plate 23, a second connecting plate 24, a third connecting plate 30 and a fourth connecting plate 34, which mainly function to take electricity from a power supply, wherein one end of the first connecting plate 23 and one end of the second connecting plate 24 are connected to a wire frame port of the backup circuit breaker 15, and the other end of the first connecting plate 23 and the other end of the second connecting plate are connected to an electricity taking port of a circuit board 33; one end of the third connecting plate 30 and one end of the fourth connecting plate 34 are connected with a wiring frame port of the common circuit breaker 9, and the other end of the third connecting plate is connected with a power-taking port of the circuit board 33.

As shown in fig. 11 and 12, the common circuit breaker 9 is a main execution unit of the entire automatic power switching device, and has overload and short-circuit protection functions; the standby circuit breaker 15 is a main execution unit of the whole power supply automatic switching device and has overload and short circuit protection functions, the switching-on and switching-off of the common circuit breaker 9 and the standby circuit breaker 15 are in three logic states, and the first logic state is switching-on of the common circuit breaker 9 and switching-off of the standby circuit breaker 15; the second logic state is that the common breaker 9 is opened and the standby breaker 15 is opened, and the third logic state is that the common breaker 9 is opened and the standby breaker 15 is closed.

As shown in fig. 13, the controller assembly 6 is a control component of the whole device, and has the functions of under-voltage, open-phase and under-voltage protection, as well as the functions of LED display and parameter setting. The second power indicator 48 is an LED indicator, when the normal power supply operates normally, the second power indicator 48 lights up, and when the normal power supply fails to operate, the second power indicator 48 lights off; the first power indicator 47 is an LED indicator, when the standby power supply operates normally, the first power indicator 47 lights up, and when the standby power supply fails to operate, the first power indicator 47 lights off; the first status indicator lamp 49 is an LED indicator lamp, when the common breaker 9 is switched on, the first status indicator lamp 49 is turned on, and when the common breaker 9 is switched off, the first status indicator lamp 49 is turned off; the second status indicator lamp 51 is an LED indicator lamp, when the standby breaker 15 is switched on, the second status indicator lamp 51 is turned on, and when the standby breaker 15 is switched off, the second status indicator lamp 51 is turned off; the first adjusting knob 52 is a common breaker 9 action delay adjusting part, and the second adjusting knob 53 is a standby breaker 15 action delay adjusting part; the signal output unit 22 is an input/output port of the controller, through which the controller assembly 6 can input/output a logical control node.

The controller assembly 6 adopts the optical coupler voltage sampling technology, the anti-electromagnetic interference capability is strong, the optical coupler voltage sampling control schematic diagram is shown in fig. 14, ports CA and CN are common power supply voltage input ports, voltage is divided and reduced by a resistor R1 and a resistor R2, AC220V voltage sees AC5V voltage, the AC voltage is rectified into dc voltage by a rectifying device D1, a capacitor C1 performs filtering processing, the dc voltage is output by a fourth interface of the rectifying device D1, a signal after voltage reduction and shunt by a resistor R4 is input to a pin 2 of a chip IC1 by a resistor R3, one end of a resistor R2 is connected with a fourth interface of the rectifying device D1, the other end is connected with a pin 1 of an IC1, a chip IC1 is a power supply voltage stabilizing chip, the pin 1 thereof is an output port, a pin 1 of an optical coupler U1 is connected with a pin 1 of a chip IC1, a pin 2 of an optical coupler U1 is connected with a pin 3 of a chip IC1, and a pin 4 of an optical coupler U1 is connected with a VCC power supply port, a 3-pin CYV port and a CYV port of the optocoupler U1 are connected into the MCU to realize sampling processing of common power supply voltage, and GND1 is a grounding system of the circuit;

the ports BA and BN are standby power supply voltage input ports, after voltage division and reduction are carried out through the resistor R6 and the resistor R10, AC220V voltage is seen as AC5V voltage, AC voltage is rectified into DC voltage through a rectifying device D3, filtering processing is carried out on a capacitor C2, the DC voltage is output by a fourth interface of the rectifying device D3, a signal which is subjected to voltage reduction and shunting through a resistor R8 and a resistor R9 is input to a pin 2 of a chip IC2, one end of the resistor R7 is connected with the fourth interface of the rectifying device D3, the other end of the resistor R7 is connected with a pin 1 of the chip IC2, the chip IC2 is a power supply voltage stabilization chip, the output port of a pin 1 of the circuit is connected with a pin 1 of a chip IC2 through a pin 1 of an optical coupler U2, a pin 2 of an optical coupler U2 is connected with a pin 3 of a chip IC2, a pin 4 of an optical coupler U2 is connected with a power supply VCC port, a pin 3 of an optical coupler U2 is connected with a BYV port, the BYV port is connected into a chip MCU, sampling processing of standby power supply voltage is achieved, and GND2 is a grounding system of the circuit.

In order to solve the problems of unreliable contact between the connecting wires and the switch wiring board, the device adopts a built-in hidden wiring mode through a first connecting plate 23, a second connecting plate 24, a third connecting plate 30 and a fourth connecting plate 34 which are made of hard copper plates, all the connecting plates are installed in a left shell 1 and a right shell 5, and the connecting plates are always connected with the wiring board of the switch, so that the problems of missing connection and wire drop during secondary wiring of a user are solved. The device has the functions of undervoltage, phase loss, voltage loss, overload and short-circuit protection, and realizes the omnibearing protection of the power end fault and the load end fault. When the common power supply fails, the controller assembly 6 can automatically cut off the power supply of the common power supply and automatically switch to the standby power supply in the state of the automatic controller, and when the common fault is eliminated and the voltage of the common power supply is recovered to be normal, the device can automatically cut off the standby power supply and automatically switch to the power supply of the common power supply.

Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, units provided by the present invention as pure computer readable program code, the system and its various devices, modules, units provided by the present invention can be fully implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A two-pole power supply automatic transfer switching device is characterized by comprising: the circuit breaker comprises a controller assembly (6), a common circuit breaker (9), a standby circuit breaker (15) and an operating mechanism assembly;

the operating mechanism assembly is connected with the common circuit breaker (9) and the standby circuit breaker (15), and the controller assembly (6) is connected with the common circuit breaker (9), the standby circuit breaker (15) and the operating mechanism assembly;

the common breaker (9) is provided with a second handle (45), the standby breaker (15) is provided with a third handle (46), the operating mechanism assembly controls the common breaker (9) to be switched on and off through the second handle (45), and the operating mechanism assembly controls the standby breaker (15) to be switched on and off through the third handle (46);

a first handle (7) is arranged on one side of the operating mechanism assembly, manual switching between the common circuit breaker (9) and the standby circuit breaker (15) is realized through the first handle (7), and a motor operating part (42) is arranged on the other side of the operating mechanism assembly, and automatic switching between the common circuit breaker (9) and the standby circuit breaker (15) is realized through the motor operating part (42);

the motor operating part (42) is connected with the controller assembly (6) and selects a manual switching state or an automatic switching state through the controller assembly (6).

2. The two pole power automatic transfer switching apparatus of claim 1, wherein the operating mechanism assembly further comprises: the device comprises a left push rod (8), a right push rod (17), a right rotating wheel (19), a main rotating shaft (20), a left rotating wheel (21), a left cam (39), a connecting rod (40), a speed reduction transmission part (41), a main cam (43) and a right cam (44);

the left cam (39) and the right cam (44) are vertically arranged on two sides of the main cam (43), and the left cam (39) and the right cam (44) push one of the cams to rotate through the rotation of the main cam (43);

a first groove is formed in one side edge, facing the right cam (44), of the left cam (39), a second groove is formed in one side edge, facing the left cam (39), of the right cam (44), and the connecting rod (40) is installed between the first groove and the second groove;

when the left cam (39) or the right cam (44) rotates, the connecting rod (40) is driven to move, the connecting rod (40) is connected with the first groove or the second groove in a matched mode through moving, and the left cam (39) and the right cam (44) are connected in a matched mode to achieve interlocking;

one side, back to the right cam (44), of the left cam (39) is connected with one side of the left rotating wheel (21), the other side of the left rotating wheel (21) is connected with the left push rod (8), one side, back to the left cam (39), of the right cam (44) is connected with one side of the right rotating wheel (19), and the other side of the right rotating wheel (19) is connected with the right push rod (17);

the middle of the main cam (43) is vertically connected with one end of the main rotating shaft (20), the other end of the main rotating shaft (20) is connected with the first handle (7), and the first handle (7) drives the main cam (43) to rotate through the main rotating shaft (20);

the main cam (43) is arranged in one side of the speed reduction transmission part (41) and is linked with the speed reduction transmission part (41), and the other side of the speed reduction transmission part (41) is provided with the motor operation part (42) and is driven to rotate by the motor operation part (42).

3. The two-pole power automatic transfer switching apparatus of claim 2, wherein: the second handle (45) is installed at the upper end of the common breaker (9), and the second handle (45) is installed in the left push rod (8) and driven by the left push rod (8) to move;

the third handle (46) is installed at the upper end of the standby circuit breaker (15), and the third handle (46) is installed in the right push rod (17) and driven by the right push rod (17) to move;

the common breaker (9) and the standby breaker (15) form a switching-on/off switch with three logic states, and the first logic state is as follows: the common breaker (9) is switched on, and the standby breaker (15) is switched off;

the second logic state is: the common breaker (9) is switched off, and the standby breaker (15) is switched on;

the third logic state is: the common breaker (9) is switched off, and the standby breaker (15) is switched off;

the interlock prevents the common circuit breaker (9) and the backup circuit breaker (15) from closing simultaneously.

4. The two-pole power automatic transfer switching apparatus of claim 3, wherein: the operating mechanism assembly is arranged on a mechanism bracket (10), and the common circuit breaker (9) and the standby circuit breaker (15) are arranged on two sides of the mechanism bracket (10);

the right wheel (19) and the left wheel (21) are mounted on the mechanism bracket (10) and are allowed to rotate freely relative to the mechanism bracket (10);

a common auxiliary switch (12) and a standby auxiliary switch (13) are fixedly mounted on the upper side of the mechanism support (10), when the left rotating wheel (21) rotates, the left rotating wheel (21) pushes the common auxiliary switch (12), when the right rotating wheel (19) rotates, the right rotating wheel (19) pushes the standby auxiliary switch (13), and the common auxiliary switch (12) and the standby auxiliary switch (13) output node signals;

a second supporting plate (38) is arranged between the common circuit breaker (9) and the operating mechanism assembly, and a first supporting plate (18) is arranged between the standby circuit breaker (15) and the operating mechanism assembly;

the common breaker (9) faces away from the second support (37) installed on one side of the operating mechanism assembly, and the standby breaker (15) faces away from the first support (16) installed on one side of the operating mechanism assembly.

5. The two-pole power automatic transfer switching apparatus of claim 4, wherein: the lower side of the mechanism bracket (10) is connected with a mechanism lower cover (4) through a clamping hook;

the mechanism lower cover (4), the common circuit breaker (9) and the standby circuit breaker (15) are arranged on a bottom plate (3), a bottom cover (36) is arranged on one side of the bottom plate (3), and a circuit board (33) is arranged between the bottom plate (3) and the bottom cover (36);

the first bracket (16) and the second bracket (37) are fixedly arranged on the bottom plate (3), and L-shaped hooks are arranged on the upper sides of the first bracket (16) and the second bracket (37) and are used for fixing the standby circuit breaker (15) and the common circuit breaker (9) respectively;

the first support (16) is connected with and supports the right push rod (17) to rotate, and the second support (37) is connected with and supports the left push rod (8) to rotate.

6. The two-pole power automatic transfer switching apparatus of claim 5, wherein: a standby power supply component (28) and a common power supply component (29) are arranged on the circuit board (33) and realize the power supply function through the circuit board (33);

the spare power supply component (28) and the common power supply component (29) are internally provided with fuses and play a role in overcurrent protection.

7. The two-pole power automatic transfer switching apparatus of claim 6, wherein: one side of the common breaker (9) is provided with a common wire inlet port (35), the other side of the common breaker (9) is provided with a common wire outlet port (11), one side of the standby breaker (15) is provided with a standby wire inlet port (25), and the other side of the standby breaker (15) is provided with a standby wire outlet port (14);

the common circuit breaker (9) is connected with a load interface through the common outgoing port (11), and the standby circuit breaker (15) is connected with the load interface through the standby outgoing port (14);

the common circuit breaker (9) is connected with a common power supply interface through the common incoming line port (35), and the standby circuit breaker (15) is connected with a standby power supply interface through the standby incoming line port (25);

a first upper wiring port (54) is arranged on one side of the common inlet port (35), a second upper wiring port (55) is arranged on one side of the spare circuit breaker (15), the common inlet port (35) and the spare inlet port (25) allow installation of cable flexible conductors, and the first upper wiring port (54) and the second upper wiring port (55) allow installation of a hard busbar;

the first upper wiring port (54) is connected with the circuit board (33) through a third connecting plate (30) and a fourth connecting plate (34), the third connecting plate (30) is fixed on the circuit board (33) through a third fastener (31), and the fourth connecting plate (34) is fixed on the circuit board (33) through a fourth fastener (32);

the second upper wiring port (55) is connected with the circuit board (33) through a first connecting plate (23) and a second connecting plate (24), the first connecting plate (23) is fixed on the circuit board (33) through a first fastening piece (26), and the second connecting plate (24) is fixed on the circuit board (33) through a second fastening piece (27);

the circuit board (33) pass through first connecting plate (23) with second connecting plate (24) are realized getting the electric function from stand-by power source interface, circuit board (33) pass through third connecting plate (30) with fourth connecting plate (34) are realized getting the electric function from power source interface commonly used.

8. The two-pole power automatic transfer switching apparatus of claim 7, wherein: the controller assembly (6) is installed on one side of the operating mechanism assembly, the controller assembly (6) is adjacent to the common circuit breaker (9) and the standby circuit breaker (15), and the controller assembly (6) is connected with the circuit board (33) and achieves signal input and output functions through the circuit board (33);

the controller assembly (6) is provided with a signal output part (22) at one side back to the operating mechanism assembly, and a logic control node is input and output through the signal output part (22);

the controller assembly (6) top is provided with: the power supply control device comprises a first power supply indicator lamp (47), a second power supply indicator lamp (48), a first status indicator lamp (49), a control switch (50), a second status indicator lamp (51), a first adjusting knob (52) and a second adjusting knob (53);

when the common power supply operates normally, the second power supply indicator lamp (48) is turned on, and when the common power supply operates in a fault, the second power supply indicator lamp (48) is turned off;

when the standby power supply operates normally, the first power supply indicator lamp (47) is turned on, and when the standby power supply operates in a fault, the first power supply indicator lamp (47) is turned off;

when the common breaker (9) is switched on, the first status indicator lamp (49) is turned on, and when the common breaker (9) is switched off, the first status indicator lamp (49) is turned off;

when the standby circuit breaker (15) is switched on, the second status indicator lamp (51) is turned on, and when the standby circuit breaker (15) is switched off, the second status indicator lamp (51) is turned off;

the first adjusting knob (52) and the second adjusting knob (53) are arranged to be adjustable resistance devices, the common circuit breaker (9) is adjusted through the first adjusting knob (52) to be delayed in action, and the standby circuit breaker (15) is adjusted through the second adjusting knob (53) to be delayed in action.

9. The two-pole power automatic transfer switching apparatus of claim 8, wherein: a left shell (1) is arranged on the outer side of the common circuit breaker (9), and the common circuit breaker (9), the left push rod (8), the third connecting plate (30) and the fourth connecting plate (34) are protected by the left shell (1);

a right shell (5) is arranged on the outer side of the spare circuit breaker (15), and the spare circuit breaker (15), the right push rod (17), the first connecting plate (23) and the second connecting plate (24) are protected by the right shell (5);

mechanism lower cover (4) upside installation mechanism upper cover (2), mechanism upper cover (2) with controller subassembly (6) top meets.

10. A circuit for the automatic transfer switching device of two pole power supply of claim 8, wherein: a CA end and a CN end are set as common power supply voltage input ports, one end of the CA end is connected with one end of a resistor R1, one end of the CN end is connected with one end of a resistor R5, the other end of the resistor R1 is connected with a first interface of a rectifying device D1, the other end of the resistor R5 is connected with a second interface of the rectifying device D1, and a third interface of the rectifying device D1 is connected with a ground wire GND 1;

the fourth interface of the rectifying device D1 is respectively connected to one end of a resistor R2, one end of a resistor R3 and the anode of a capacitor C1, the other end of the resistor R2 is connected to pin 1 of a power supply voltage stabilization chip IC1, the cathode of the capacitor C1 is connected to the ground GND1, the other end of the resistor R3 is respectively connected to one end of a resistor R4 and pin 2 of the power supply voltage stabilization chip IC1, the other end of the resistor R4 is connected to the ground GND1, pin 4 of the power supply voltage stabilization chip IC1 is connected to the ground GND1, and pin 3 of the power supply voltage stabilization chip IC1 is connected to the ground GND 1;

a pin 1 of the power supply voltage stabilization chip IC1 is connected with a pin 1 of an optical coupler U1, a pin 3 of the power supply voltage stabilization chip IC1 is connected with a pin 2 of the optical coupler U1, a pin 3 of the optical coupler U1 is connected with a CYV port, the CYV port is a common power supply fault state input port, a pin 4 of the optical coupler U1 is connected with a power supply VCC port, and the CYV port is connected into a chip MCU;

a BA end and a BN end are set as standby power supply voltage input ports, one end of the BA end is connected with one end of a resistor R6, one end of the BN end is connected with one end of a resistor R10, the other end of the resistor R6 is connected with a first interface of a rectifying device D3, the other end of the resistor R10 is connected with a second interface of the rectifying device D3, and a third interface of the rectifying device D3 is connected with a ground wire GND 2;

the fourth interface of the rectifying device D3 is respectively connected to one end of a resistor R7, one end of a resistor R8 and the anode of a capacitor C2, the other end of the resistor R7 is connected to pin 1 of a power supply voltage stabilization chip IC2, the cathode of the capacitor C2 is connected to the ground GND2, the other end of the resistor R8 is respectively connected to one end of a resistor R9 and pin 2 of the power supply voltage stabilization chip IC2, the other end of the resistor R9 is connected to the ground GND2, pin 4 of the power supply voltage stabilization chip IC2 is connected to the ground GND2, and pin 3 of the power supply voltage stabilization chip IC2 is connected to the ground GND 2;

the power supply voltage stabilization chip IC 2's 1 foot connects optical coupler U2's 1 foot, power supply voltage stabilization chip IC 2's 3 feet are connected optical coupler U2's 2 feet, optical coupler U2's 3 feet are connected the BYV port, the BYV port is stand-by power supply fault state input port, optical coupler U2's 4 feet are connected the power VCC port, the BYV port insert extremely in the chip MCU.

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