CN202384843U

CN202384843U - Resetting switch with automatic closing function

Info

Publication number: CN202384843U
Application number: CN2011205656945U
Authority: CN
Inventors: 朱荣惠
Original assignee: WUXI HAUYANG TECHNOLOGY CO LTD
Current assignee: WUXI HAUYANG TECHNOLOGY CO LTD
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-08-15
Anticipated expiration: 2021-12-30

Abstract

The utility model is suitable for the technical field of an electricity meter charging switch and provides a resetting switch with an automatic closing function. The resetting switch comprises a power supply unit, a control unit, a stripping unit and a resetting unit, wherein the power supply unit is used for supplying power for the control unit and the resetting unit; the control unit is used for outputting a stripping signal to the stripping unit and executing stripping of the switch according to the detected TS disconnection signal; and the control unit also can be used for outputting a resetting signal to the resetting unit and executing automatic closing of the switch according to the detected TS switching signal. With the adoption of the resetting switch, considering that the personal safety of maintenance personnel can be affected if the power supply condition occurs on the condition that a circuit is maintained, a maintenance manual switch is increased; and when the maintenance manual switch is disconnected, the resetting switch enters a fault mode and cannot automatically close at this mode, so that the protection effect on the maintenance personnel and electrical appliances is exerted. The resetting switch has the characteristics of being rich in functions, low in cost and good in economic effects.

Description

A kind of reset switch with automatic switching-in function

Technical field

The utility model belongs to ammeter charging switching technique field, relates in particular to a kind of automatic switching-in function that has, and the reset switch of tape jam pattern.

Background technology

Improving constantly of Along with people's quality of life; Electronics, electric equipment products have got into huge numbers of families; Also progressively strengthening for the protection person and the awareness of safety of equipment; The function of the electronic product that particularly uses now is more and more important, the field that electronic product is used also more and more widely, the requirement to protector of all kinds accordingly also improves constantly.

At present, be applied in the switch in the ammeter charging, major part is to have only the separating brake function, and automatic switching-in function is seldom arranged, and ammeter charging switching function is single at present, if which section circuit needs power supply, needs manually switch is closed, and causes the waste of manpower.

So prior art exists not enough, need to improve and improve.

The utility model content

The purpose of the utility model is to provide a kind of reset switch with automatic switching-in function, efficiently solves single, the defective that can not automatic closing of existing ammeter charging switching function in the prior art.

The utility model is achieved in that a kind of reset switch with automatic switching-in function, it is characterized in that, comprises power subsystem, control unit, and trip unit and reset unit, wherein,

Said power subsystem is connected with said reset unit signal with said control unit respectively, is used to the power supply of said control unit and said reset unit;

Said control unit is connected with institute reset unit signal with said trip unit respectively; Said control unit is used for according to detected TS cut-off signal; The output trip signal is carried out the tripping operation of switch to said trip unit, and said control unit is also according to detected TS switching signal; The output reset signal is carried out the combined floodgate of said switch to said reset unit.

Wherein, between said control unit and said reset unit, also comprise a maintenance switch, the signal output part of the said control unit of said service switch one termination, the signal input part of the said reset unit of another termination of said service switch.

Wherein, said control unit comprises control chip U2, register U3; Said control chip U2 the 4th pin connects the end of current-limiting resistance R20; The other end of current-limiting resistance R20 be connected in series two dropping resistor R11 and R10, the other end of said dropping resistor connects the negative terminal of diode D6, and the anode of said diode D6 is connected to an end of TS holding wire; Be used for realizing the tripping operation and the combined floodgate of said switch through said trip unit and said reset unit through the said TS holding wire of connecting and disconnecting.

Wherein, the 3rd pin of said control chip U2 is connected to optical coupling pipe U6 through resistance R 12 and is connected with said trip unit signal, and the 2nd pin of said control chip U2 is connected to optical coupling pipe U5; When said control chip U2 the 4th pin receives the TS cut-off signal; The 3rd pin of said control chip U2 is exported a high potential, and said optical coupling pipe U6 conducting makes its A; B holds closed; The controllable silicon Q4 control utmost point in the said trip unit obtains a trigger voltage conducting, and the tripping operation of said switch is carried out in the electromagnet DCT energising work of said trip unit.

Wherein, the 5th pin of said control chip U2 is connected to said reset unit through said service switch, when the 4th pin of said control chip U2 detects said TS switching signal; The 5th pin through said control chip U2 is exported a high level to said reset unit, and said reset unit comprises controllable silicon Q1, controllable silicon Q2; Resistance R 18 and PTC combined floodgate actuator, said resistance R 18 1 ends connect said service switch, the control utmost point of the said controllable silicon Q2 of said resistance R 18 another terminations; When said high level signal through said resistance R 18; Make said controllable silicon Q2 conducting, said PTC switches on, and carries out the combined floodgate of said switch.

Wherein, the 6th of said control chip U2 is connected with 5 pins with the 6th of said register respectively with the 7th pin, and said register is used to write down the each closed or operating state when breaking off of said switch.

The beneficial effect of the utility model is: a kind of reset switch with automatic switching-in function that the utility model provided, through increasing automatic switching-in function, just no longer remove buck switch with manual work when needs send electricity to the user; When control unit detects switch and is off-state, can judge always whether switch needs to close a floodgate, if cut off the power supply under the situation of subscriber arrearage; Under the situation that the user continues to pay dues once more; Reset switch can close K switch 1 automatically, no longer needs manual closing operation, has brought very big convenience so just for whole electric power system power supply; Realized intelligent management; Electric company has also been reduced manpower, and fund and temporal waste have improved efficient; This switch can automatic closing under powering-off state, and the utility model considers circuit under the situation of maintenance, if there is electric power thus supplied to occur; Can cause personal safety to the maintenance personal, in circuit, increase a fault mode, increase a service switch K2 exactly; When service switch K2 breaks off; The reset switch of the utility model has just got into fault mode, and switch is can automatic closing under this pattern, has so just guaranteed the protective effect of maintenance personal and electrical equipment.

Description of drawings

Fig. 1 is the utility model one embodiment schematic block circuit diagram.

Fig. 2 is the utility model one embodiment circuit theory diagrams.

Embodiment

For solve existing circuit protection device function singleness in the present technology, can not automatic closing defect problem, the utility model provides the reset switch with automatic switching-in function, the core concept of this utility model is: when arrearage appears in the user; Through importing a TS power-off signal to control unit, control unit sends trip signal and carries out the tripping operation of switch, after paying dues; Carry out automatic closing to TS switching signal of control unit input again, solved in the prior art, also must be artificial behind the subscriber payment go closed a floodgate switch; Operate inconvenience very like this, the utility model can close a floodgate this K switch 1 under the state of switch separating brake automatically; And the utility model also comprises a service switch K2, and under the situation that K switch 2 is manually broken off, switch gets into fault mode; K switch 1 just automatic closing can not occur at this moment; Must manually service switch K2 be closed, switch could be separated fault mode and remove, and has guaranteed the maintenance work fail safe.

For the purpose, technical scheme and the advantage that make the utility model is clearer, clear and definite, below develop simultaneously embodiment to the utility model further explain with reference to accompanying drawing.

Accompanying drawing 1 is the schematic block circuit diagram of the utility model, comprises power subsystem 100, control unit 200; Trip unit 300, reset unit 400 and service switch 500, wherein; Power subsystem 100 is control unit 200 and reset unit 400 power supplies, control unit 200 connect respectively the TS signal source (TS is Telecommunication Service: the telecommunication service, TS is power supply administration's control signal; 220 V), control unit 200 and be connected with reset unit 400 through service switch 500, service switch 500 is an on-state under the normal condition, when control unit 200 detects the TS cut-off signal; Just export a trip signal to trip unit 300, carry out the tripping operation of K switch 1, when control unit 200 detects the TS switching signal; Output reset signal to reset unit 400, the combined floodgate of execution K switch 1 is not because this moment, switch was in service mode; Service switch 500 is connected, so just can realize automatic switching-in function; But when service switch 500 when manually being in off-state, get into fault mode this moment, K switch 1 just can not automatic closing, must manually service switch K2 be closed and can accomplish automatic switching-in function.

Accompanying drawing 2 is the embodiment schematic diagram of the utility model, and wherein power subsystem 100 comprises U1, and U1 is a rectifier bridge, and 1 and 3 ends of U1 connect the civil power alternating current through K switch 1; Be responsible for power supply to other unit of system being provided, its principle is for to convert interchange into direct voltage through rectifier bridge U1, through dropping resistor R1, R2; R3, the R4 step-down, and provide galvanic current to press power supply to chip U2 and register U3 through 5.1V voltage-stabiliser tube D1; C3, C4 strobes, and is used to power supply stable operating voltage is provided.

Control unit 200 mainly comprises master control chip U2, register U3, and the pin among the master control chip U2 mainly comprises the 2nd, 3; 4,5,6 and 7 pins, these pins are pins of the utility model control tripping operation and the use of closing a floodgate; Other pin is not done detailed description, and the 2nd pin is used to judge that K switch 1 is in disconnection or closure state, when K switch 1 closure; 2 pin are high level, and when K switch 2 was broken off, 2 pin were low level; The 3rd pin is used to export a high level signal (trip signal), makes optical coupler U6 conducting, and the control trip unit trips; The 4th pin is used to receive TS signal (comprising TS cut-off signal and switching signal), and the TS holding wire of the utility model is the preceding termination 220V alternating current in K switch 1, and the TS holding wire is added on the diode D6 (halfwave rectifier); Through resistance R 10 and resistance R 11 step-downs, diode D2, capacitor C 2 voltage stabilizings; Connect current-limiting resistance R20; Get into the 4th pin of chip at last,, realize the combined floodgate and the separating brake of K switch 1 through connecting and disconnecting TS holding wire; Be connected to the signal input part of reset unit 400 behind the end of the 5th pin connection service switch K2, export high potential signal (reset signal) to reset unit 400; The 6th is connected with 5 bipods with the 6th of register U3 respectively with 7 bipods, plays the communication effect, and the closure each time or the off-state of switch all store through register U3.

Trip unit 300 mainly comprises rectifier bridge U7, and rectifier bridge U7 converts alternating voltage to direct current, is used to the controllable silicon Q3 in the trip unit, and Q4 and optical coupler U5 and U6 provide power supply; When the 4th pin of master control chip U2 received a low-potential signal, high potential signal of the 3rd pin output of master control chip U2 to optical coupler U6, made its conducting, simultaneously A through resistance R 12; B holds closed, makes the controllable silicon Q4 control utmost point obtain a trigger voltage conducting, the electromagnet DCT energising work of trip unit, K switch 1 tripping operation in the executive system; Under the utility model normal operating conditions, optical coupler U5 is in electriferous state, C, and D is normal; Be closure state, the 2nd pin of control chip U2 is a high potential like this, but behind the switch trip; Rectifier bridge U7 does not have electricity, and the input of optical coupler U5 does not have voltage input, C yet like this; D holds disconnection, and the 2nd pin of control chip U2 is an electronegative potential, and C and D two ends are that to be used for sense switch K1 be at normal condition or off state.

Reset unit 400 comprises controllable silicon Q1, controllable silicon Q2, resistance R 18 and PTC (combined floodgate actuator); One termination service switch K2 of resistance R 18; The control utmost point of the said controllable silicon Q2 of another termination when high level signal passes through resistance R 18, makes controllable silicon Q2 conducting; The PTC energising, the feed motion of execution K switch 1.

The operation principle of the utility model is described below: power subsystem is used for being responsible for power supply to internal system being provided, and converts direct voltage with U7 with exchanging through rectifier bridge U1, through dropping resistor R1; R2, R3, R4 step-down; And provide galvanic current to press to the power supply of control chip and register through the 5.1V voltage-stabiliser tube; Capacitor C 3, C4 strobes, and to power supply stable operating voltage is provided; K switch 1 rear end connects dropping resistor R5-R9 step-down through rectifier bridge U7, and diode D5 (voltage stabilizing) and capacitor C 7 (filtering) connect 2nd pin of optical coupler U5 to control chip U2; Through resistance R 15, capacitor C 8 ground connection (preventing that optocoupler from misleading), the 2nd pin that arrives control chip U2 is judged the disconnection or the closure state of K switch 1; When K switch 1 closure; The 2nd pin is a high level, and when K switch 1 was broken off, the 2nd pin was a low level; Control chip the 4th pin, through with the connecting and disconnecting of TS holding wire, realize the combined floodgate and the separating brake of K switch 1.When the TS holding wire is connected, K2 manually closes with service switch, at this moment K switch 1 operate as normal; When the TS holding wire breaks off; This moment, high level of the 3rd pin output of control chip was opened optical coupler U6, made controllable silicon Q4 conducting, electromagnet DTC work this moment; K switch 1 tripping operation is cut off the power supply to the user.If once more the TS holding wire is added, the 4th pin of control chip U2 is a high level, and the 2nd pin is a low level; Judge that K switch 1 is a gate-dividing state, this moment, the 5th pin of control chip U2 was exported high level, through resistance R 18 current limlitings; Capacitor C 5 filtering make controllable silicon Q2 conducting for direct current of controllable silicon Q2 control end, PTC energising this moment; Through the PTC actuator K switch 1 is closed, PTC is set to 3-9 second heating time here, prevents heating time from long actuator to be destroyed.

The above is merely the preferred embodiment of the utility model, not in order to restriction the utility model, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within the protection range of the utility model.

Claims

1. the reset switch with automatic switching-in function is characterized in that, comprises power subsystem, control unit, and trip unit and reset unit, wherein,

2. the reset switch with automatic switching-in function according to claim 1; It is characterized in that; Between said control unit and said reset unit, also comprise a maintenance K switch 2; The signal output part of the said control unit of said service switch one termination, the signal input part of the said reset unit of another termination of said service switch.

3. the reset switch with automatic switching-in function according to claim 1; It is characterized in that said control unit comprises control chip U2, register U3; Said control chip U2 the 4th pin connects the end of current-limiting resistance R20; The other end of current-limiting resistance R20 be connected in series two dropping resistor R11 and R10, the other end of said dropping resistor connects the negative terminal of diode D6, and the anode of said diode D6 is connected to an end of TS holding wire; Be used for realizing the tripping operation and the combined floodgate of said switch through said trip unit and said reset unit through the said TS holding wire of connecting and disconnecting.

4. the reset switch with automatic switching-in function according to claim 3 is characterized in that, the 3rd pin of said control chip U2 is connected to optical coupling pipe U6 through resistance R 12 and is connected with said trip unit signal; The 2nd pin of said control chip U2 is connected to optical coupling pipe U5, and when said control chip U2 the 4th pin received the TS cut-off signal, the 3rd pin of said control chip U2 was exported a high potential; Said optical coupling pipe U6 conducting; Make its A, B holds closed, and the controllable silicon Q4 control utmost point in the said trip unit obtains a trigger voltage conducting; The tripping operation of said switch is carried out in the electromagnet DCT energising work of said trip unit.

5. the reset switch with automatic switching-in function according to claim 3 is characterized in that, the 5th pin of said control chip U2 is connected to said reset unit through said service switch; When the 4th pin of said control chip U2 detects said TS switching signal, the high level of the 5th pin output through said control chip U2 is to said reset unit, and said reset unit comprises controllable silicon Q1; Controllable silicon Q2; Resistance R 18 and PTC combined floodgate actuator, said resistance R 18 1 ends connect said service switch, the control utmost point of the said controllable silicon Q2 of said resistance R 18 another terminations; When said high level signal through said resistance R 18; Make said controllable silicon Q2 conducting, said PTC switches on, and carries out the combined floodgate of said switch.

6. the reset switch with automatic switching-in function according to claim 3; It is characterized in that; The 6th of said control chip U2 is connected with 5 pins with the 6th of said register respectively with the 7th pin, and said register is used to write down the each closed or operating state when breaking off of said switch.