CN201319518Y

CN201319518Y - Miniature duplicate supply automatic switching device

Info

Publication number: CN201319518Y
Application number: CNU2008202038925U
Authority: CN
Inventors: 梁可标; 肖孟章
Original assignee: FOSHAN NANDIAN SWITCH Co Ltd
Current assignee: GUANGDONG NANGUAN ELECTRICAL CO., LTD.
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2009-09-30
Anticipated expiration: 2018-11-24

Abstract

The utility model discloses a miniature duplicate supply automatic switching device which comprises a power supply module, a three-phrase voltage sampling module, an analyzing and processing module, an output execution module, a reset module, a power supply indicating module and a switching power supply closing module, wherein the input end of the three-phrase voltage sampling module is connected with a normal power supply and a standby power supply; the output end is connected with the analyzing and processing module; the output end of the analyzing and processing module is connected with the output execution module for controlling the switching between the normal power supply and the standby power supply; the analyzing and processing module is connected with the reset module and the power supply indicating module; and the switching power supply closing module is connected with the normal power supply and the standby power supply for indicating the closing state of the switching power supply. When the normal power supply does work normally, the analyzing and processing module is used for analyzing and processing the information provided by the sampling module, and the output execution module drives the execute motor to work according to the analyzing and processing commands of the analyzing and processing module to realize the switching from the normal power supply to the standby power supply.

Description

The small capacity double automatic power-supply switch

Technical field

The utility model relates to a kind of small capacity double automatic power-supply switch.

Background technology

At present commercially available double-power supply switching device with miniature circuit breaker (its maximum current of terminal modularization circuit breaker is below 100A) and automatic controller and motor-operating mechanism composition, various in style, but because of breaker body little, for coordination of circuit breaker, the volume matched of controller and motor-operating mechanism, so the following significant problem of ubiquity:

GB/T14048.11-2002 low voltage switchgear and control appliance 6-1 part: " multifunctional electric appliance---transfer switching equipment ", 8.2.1.2 bar C money regulation: " during the power supply decompression ATSE should power supply commonly used monitored any one mutually or have no progeny in all each phase voltages one give and fixing time load from power source conversion commonly used to stand-by power supply, and just often load is returned at power up commonly used be converted to power supply commonly used ".But all can only have no progeny in a certain phase voltage of power supply commonly used in existing commercially available prod, can realize load from power source conversion commonly used to stand-by power supply and even voltage interruption appears in other two-phase, load can not be from power source conversion commonly used to stand-by power supply, the reason that produces this design mistake is because the controller finite volume, so that only make a phase sampler and and handle mutually, but this mistake be standard do not allow to exist.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of result of use good, reliable small capacity double automatic power-supply switch.

The technical scheme that the utility model adopted is:

The small capacity double automatic power-supply switch, comprise power module, the three-phase voltage sampling module, analysis and processing module, the output Executive Module, reseting module, power supply indicating module and conversion electric power combined floodgate module, the input of power module is connected with stand-by power supply with power supply commonly used, output connects analysis and processing module, output Executive Module and reseting module, the input of three-phase voltage sampling module connects power supply commonly used and stand-by power supply, output is connected to analysis and processing module, the output of analysis and processing module connects the output Executive Module, the conversion of control power supply commonly used and stand-by power supply, analysis and processing module connects reseting module and power supply indicating module, conversion electric power combined floodgate module is connected with stand-by power supply with power supply commonly used, the "on" position of indication conversion electric power.

The beneficial effects of the utility model are: adopt module, analysis and processing module because this switching device shifter has three-phase voltage, three-phase voltage adopts module to gather power supply three-phase voltage parameter commonly used and stand-by power supply one phase voltage parameter respectively, when power supply commonly used is undesired, the information that analysis and processing module is responsible for sampling module is improved is implemented analyzing and processing, the output Executive Module is by the analyzing and processing instruction of analysis and processing module, drive the work of actuating motor, realize using always power supply (trouble power) and change to stand-by power supply (normal power source).

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a system principle diagram of the present utility model;

Fig. 2 is the power supply power supply state schematic diagram commonly used of the utility model output Executive Module;

Fig. 3 is the transition status schematic diagram of the utility model output Executive Module.

Embodiment

With reference to Fig. 1, Fig. 2 and Fig. 3, small capacity double automatic power-supply switch of the present utility model, comprise power module 1, three-phase voltage sampling module 2, analysis and processing module 3, output Executive Module 4, reseting module 5, power supply indicating module 6 and conversion electric power combined floodgate module 7, the input of power module 1 is connected with stand-by power supply with power supply commonly used, output connects analysis and processing module 3, output Executive Module 4 and reseting module 5, the input of three-phase voltage sampling module 2 connects power supply commonly used and stand-by power supply, output is connected to analysis and processing module 3, the output of analysis and processing module 3 connects output Executive Module 4, the output of output Executive Module 4 connects motor and power supply commonly used and stand-by power supply, analysis and processing module 3 connects reseting module 5 and power supply indicating module 6, conversion electric power combined floodgate module 7 is connected with stand-by power supply with power supply commonly used, the "on" position of indication conversion electric power.

Wherein, power module 1:, take from commonly used and stand-by power supply respectively by transformer for the unit provides the working power (

main supplying module

3,4,5) of 5V, 12V.

Three-phase voltage sampling module 2: main element is an optocoupler, gathers power supply three-phase voltage parameter commonly used and stand-by power supply one phase voltage parameter respectively.

Analysis and processing module 3: can adopt 8 single-chip microcomputer PIC6F676, the information of being responsible for sampling module 2 is provided is implemented analyzing and processing.

Output Executive Module 4: i.e. driver module, shown in Fig. 2,3, form, be responsible for analyzing and processing instruction by 5 midget relay elements, drive actuating motor work, realize the conversion of power supply (trouble power) commonly used to stand-by power supply (normal power source) by analysis and processing module 3.

Reseting module 5: the Program reset as analysis and processing module 3 is used, the RA3 of analysis and processing module 3 links to each other with the RA3 of reseting module 5, and constantly provide information to reseting module 5, if the RA3 message interrupts of analysis and processing module 3 and reseting module 5 0.7 second, then the Program reset of the RA5 military order analysis and processing module 3 of reseting module 5 starts anew to carry out.

Power supply indicating module 6: power supply commonly used and stand-by power supply state be indication normally all, is that main element is formed with the light-emitting diodes.

Conversion electric power combined floodgate module 7: with the light-emitting diode is that main element is formed, the "on" position of indication conversion electric power.

Enforcement for above-mentioned module installation, above-mentioned 7 functional modules, not only bulky, and power module 1 and three-phase voltage sampling module 2 also bear alternating current 220V voltage, need to guarantee enough electric clearance and creepage distance, therefore, above-mentioned 7 modules divide two places to install:

module

1,6,7 and actuating motor structure conversion equipment are installed in the plastic casing, place between two change over switches, in

module

2,3,4,5 mounting bases.

For the realization of duplicate supply automatch, module 1 respectively from power supply commonly used and stand-by power supply power taking, after conversion, provides 5V to

module

3,5,6 by transformer, provides the working power of 12V to module 4, makes

module

3,4,5,6 possess condition of work.

Deliver to analysis and processing module 3 when the power source voltage information commonly used of three-phase voltage sampling module 2 collections and carry out analyzing and processing, occur overvoltage, under voltage and phase shortage as a result the time, analysis and processing module 3 is sent the connected mode that conversion instruction changes the midget relay contact combinations to output Executive Module 4, realize conversion, concrete conversion program is as follows:

As shown in Figure 2, when power supply commonly used just often, the connected mode of miniature circuit breaker contact combinations as:

Normal power source terminal NN → relay K 1 contact → motor M winding 1 → relay K 5 contacts → circuit breaker K4 contact → relay K 3 contacts conversion → power supply terminal NN commonly used, circuit is connected, motor M rotation → haulage gear → power circuit breaker contact closure → limit switch 1 action → cut-out motor power circuit commonly used → motor stall.

When power supply commonly used was undesired, the program that is converted to stand-by power supply was as follows:

As shown in Figure 3, stand-by power supply terminal RN → midget relay K1 contact conversion → motor M winding 2 → midget relay K5 contact conversion → midget relay K4 contact conversion → midget relay K2 contact conversion → stand-by power supply terminal RN, circuit is connected, motor M counter-rotating → haulage gear → power circuit breaker contact disconnection → auxiliaries-supply circuit-breaker contact closure → limit switch 2 action → cut-out motor windings circuit → motor stalls commonly used is realized the conversion of normal power source to stand-by power supply.

When power up commonly used just often, module 3 sends instruction for module 4, make midget relay K1-K5 action, its corresponding contact is replied as shown in Figure 2, relay K 1, the K3 contact breaks away from the stand-by power supply terminal, cut off motor M winding 2 circuit, relay K 1 contact is connected normal power supply terminal NN → motor M winding 1 → relay K 5 contacts → relay K 4 contacts → relay K 3 contacts → power supply terminal NN commonly used → circuit connections → motor M rotation → haulage gear → auxiliaries-supply circuit-breaker contact and is disconnected → use always power circuit breaker contact closure → limit switch 1 contact disconnection → cut-out motor power circuit → motor stall → finish thus from stand-by power supply to the transfer process of using power supply always simultaneously.

Certainly, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection range of the present utility model.

Claims

1, the small capacity double automatic power-supply switch, it is characterized in that: comprise power module (1), three-phase voltage sampling module (2), analysis and processing module (3), output Executive Module (4), reseting module (5), power supply indicating module (6) and conversion electric power combined floodgate module (7), the input of power module (1) is connected with stand-by power supply with power supply commonly used, output connects analysis and processing module (3), output Executive Module (4) and reseting module (5), the input of three-phase voltage sampling module (2) connects power supply commonly used and stand-by power supply, output is connected to analysis and processing module (3), the output of analysis and processing module (3) connects output Executive Module (4), the conversion of control power supply commonly used and stand-by power supply, analysis and processing module (3) connects reseting module (5) and power supply indicating module (6), conversion electric power combined floodgate module (7) is connected with stand-by power supply with power supply commonly used, the "on" position of indication conversion electric power.