CN101963789B

CN101963789B - Standby zero power consumption switch control system

Info

Publication number: CN101963789B
Application number: CN201010271222A
Authority: CN
Inventors: 周斌; 姚步堂; 唐克勇
Original assignee: CHANGZHOU KAIDI ELECTRIC APPLIANCE Co Ltd
Current assignee: Changzhou Kaidi Electrical Co Ltd
Priority date: 2010-09-02
Filing date: 2010-09-02
Publication date: 2012-10-17
Anticipated expiration: 2030-09-02
Also published as: CN101963789A; WO2012028016A1

Abstract

The invention relates to a standby zero power consumption switch control system, which is used for electrically adjusting civil and industrial electrical appliances. In an automatic switch device for the on/off of a main power supply, a main circuit switch is arranged at the front end of the main circuit; the switch is controlled by a driver in a control circuit, automatically delays for disconnection when being not used by the system and is automatically closed when being used by the system. A control circuit switch is arranged at the front end of the control circuit, is automatically disconnected when being not used by the system and is automatically closed when being used by the system, thereby realizing zero power consumption, that is to say, the main circuit and the control circuit do not consume electric energy in standby; and meanwhile, only once on/off action is needed to be performed on the switch for the on/off of the main power supply when the system is operated in short time for multiple times.

Description

Standby zero-power on-off control system

Technical field

The present invention relates to a kind of power switch device, especially a kind of recloser that is applicable to the control primary power break-make of current drain device is used to cut out the primary power with start-up system, the zero-power when realizing standby.

Background technology

At present, the office furniture of motorized adjustment, sick bed, sofa, household electrical appliance, and the application of industrial electrical equipment equipment is more and more widely.In some cases; We will hope that this type motorized adjustment equipment and primary power keep off-state; Used up energy when this can save device standby on the one hand; For example electric energy during the transformer standby in the system can be avoided in some special occasions, generating an electromagnetic field, for example the ward on the other hand.Turn-off the most completely and can carry out manual-lock or directly its attaching plug dialled realization from electrical network through equipment is installed main power switch, still, this requirement must the manually opened or plug that plugs in when reusing equipment.Therefore, preferably adopt a kind of device to come to close automatically the primary power with starting outfit, need not remember manual operation main power switch when needs are closed in actual the use, also need not when regulating, at first carry out manual operation main power switch.For example; Can this device be used on the desk of motorized adjustment height; When need not to regulate, equipment breaks off from main electrical network fully, 0 power consumption when realizing standby; In case when need regulating during equipment the operation element button just can rebulid the electric current supply immediately, this does not just need special manually connection primary power.

Similarly device many places in the document of having announced relate to.The DE9212599U1 of the WO001995023450A1 of LINAK, WO002004019463A1, WO002007107157A1 and DEWERT has all mentioned a kind of recloser of primary power break-make; Control circuit through a chargeable electric capacity is recloser is supplied power; Because the electric capacity itself that is filled with electric energy has the characteristic of slight leakage, under the long-time obsolete situation of system, 2～3 weeks for example; Electric energy can slowly be given out light in the electric capacity; Cause dead electricity system of system to start, therefore, be provided with an auxiliary circuit part in the system for chargeable electric capacity charging.The defective of these systems is; In case the attaching plug of system connects electrical network, this auxiliary circuit part will be connected on the primary power always, be the electric capacity charging for a long time or termly; Therefore auxiliary circuit will consume the part electric energy, can not realize 0 power consumption truly.Another defective is, under some occasion, in a short time, repeatedly moves if desired--during the switching that stops, the switchgear of primary power break-make also can be along with closure--the action of disconnection be carried out in operation each time, and this can reduce the serviceable life of switch.The EP0615667B2 of OKIN mentions a kind of recloser of primary power break-make; Control circuit through a chargeable electric capacity is recloser is supplied power; For prevent on the electric capacity electric energy for a long time not the time spent slowly give out light, be provided with battery in the system into electric capacity charging.And system is provided with a manual pushbutton being used to cut off on the circuit breaker of primary power; When the electric energy of electric capacity and battery all exhausts; Can press this button through manual work is the charging of chargeable electric capacity, though this device can system thoroughly be cut off from electrical network owing to use long-acting battery and have the button relay; The meeting of system increases cost; On the other hand, the switchgear of primary power break-make also can be along with closure--the action of disconnection be carried out in operation each time, and this can reduce the serviceable life of switch.

Summary of the invention

The technical matters that the present invention will solve is: propose a kind of under the situation of not using battery as standby power supply; Overcome charging circuit and be connected the defective on the electrical network for a long time; Solve simultaneously and repeatedly move at short notice--during the switching that stops, the switchgear of primary power break-make also can be along with closure--the problem of disconnection is carried out in operation each time.

The technical scheme that the present invention adopted is: a kind of standby zero-power on-off control system, be used for motorized adjustment civilian and industrial on electric equipment, have main circuit and control circuit; Described main circuit front end is provided with main circuit switch; Described control circuit front end is provided with the control circuit switch, and system starts the play button of electric equipment under holding state; Thereby make control circuit work through control circuit switch driver trigger control circuit switch closure; Drive main circuit switch by control circuit again and start, thereby make main circuit and primary power connect, realize the adjustment process of electric equipment; After accomplishing adjustment process, unclamp the play button of electric equipment, the control circuit switch also breaks off immediately, and control circuit quits work, and described main circuit switch is connected through breaking off after delaying time and making main circuit break off with primary power, and system comes back to holding state.

Specifically, main circuit of the present invention comprises main circuit switch, main circuit transformer, main circuit rectifier bridge, filter capacitor that is connected with the primary power break-make and H bridge switch and the motor of realizing regulating electric equipment, is electrically connected between the described each several part.The H bridge switch is used for regulating the forward or reverse of motor.Described main circuit switch is relay or bidirectional triode thyristor.

And described control circuit comprises manual powered switch, control circuit transformer, control circuit rectifier bridge, the filter capacitor that is electrically connected each other and drives the main circuit switch driver that main circuit switch is closed or break off.Described control circuit switch is relay or photoelectrical coupler.

Further say; Main circuit switch carries out closure and unlatching what do not stop when preventing multi-pass operations play button at short notice; After described main circuit and primary power were connected, primary power was the driver power supply of main circuit switch, thereby forms a latching circuit; If there is not its current supply circuit of cut-out of other device, main circuit can not break off.

Accordingly; The present invention also is provided with a time-delay disconnecting device in control circuit; The time-delay disconnecting device is triode or photoelectrical coupler or relay, and the current supply circuit of described latching circuit is through cut-outs of delaying time of time-delay disconnecting device, thereby makes main circuit be connected with the primary power disconnection.Like this, unclamping play button after long period of time, the time-delay disconnecting device will cut off main circuit switch driver current supply circuit automatically.The time interval of time-delay disconnecting device of the present invention is adjustable.What the time interval was adjustable here is defined as: promptly can be by the requirements set time interval of manufacturer according to the user, and the adjustment in the carrying out time interval that the user cannot be voluntarily, also can be by user oneself according to the demand adjustment in the carrying out time interval at any time.The clock control of time-delay disconnecting device can be provided by independent circuits, but starts from the consideration of cost, and the clock control of time-delay disconnecting device is provided by the actuator driven chip usually, need not to add in addition element.

Saying further, the play button of electric equipment of the present invention are connected with a chargeable electric capacity, and described chargeable electric capacity provides stored electric energy start-up control contactor under the system standby state.Chargeable electric capacity select for use usually capacity big, leak the electric capacity of minimum type, can guarantee that system did not work in 3～4 weeks still can normally start.

Further say again, for guaranteeing to insert electrical network and time spent not for a long time, on the charging capacitor during no electric energy or electric energy deficiency first; System still can start; On the control circuit switch, be parallel with a manual powered switch, press, with direct start-up control circuit; It is described chargeable electric capacity charging that thereby startup main circuit, main circuit and primary power are connected the back.This moment, system can normally work through the operation element button.For the purpose of safety; The position corresponding with manual powered switch on the plastic casing of this system is provided with the insulation hand push button, guarantees that the operator is by safe isolation; Hand push button directly is configured on the shell when the design plastic casing, does not increase any cost.

The invention has the beneficial effects as follows: in the recloser of a primary power break-make, the front end of main circuit is provided with main circuit switch, the driver control in the controlled circuit of this switch, and automatic time delay breaks off in the time of need not using in system, auto-closing during use.At the control circuit front end, be provided with a control circuit switch, automatic cutout in the time of need not using in system, auto-closing during use, thereby all not consumed power, i.e. zero-power of main circuit, control circuit when realizing standby; When realizing in the short time multi-pass operations system simultaneously, the switch of primary power break-make only needs an on-off action.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Fig. 1 is the electrical schematic diagram of the preferred embodiments of the present invention;

Fig. 2 is the electrical schematic diagram that the relay of main circuit among Fig. 1 is replaced with bidirectional triode thyristor;

Fig. 3 is the electrical schematic diagram that the photoelectrical coupler of control circuit among Fig. 1 is replaced with relay.

Embodiment

Combine accompanying drawing and preferred embodiment that the present invention is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.

As shown in Figure 1, frame of broken lines I is a main circuit, the 1st, and primary power; 2B and 2C are main circuit switches, select relay here for use, the 3rd, and the main circuit transformer; The 4th, main circuit rectifier bridge, the 5th, main circuit filter capacitor, the 6th, H bridge switching circuit; The driver module 8 that is made up of single-chip microcomputer and peripheral cell transmits the control signal of H bridge switch 6 through bus 25, makes different brachium pontis conductings, realizes motor 7 forwards and antiport respectively.When switch 20B is closed, the signal of driver module 8 output motors 7 forwards running, when switch 21B is closed, the signal of driver module 8 output motors 7 antiports.

Empty frame II is a control circuit, and wherein 9 is manual powered switches, and 10B is the switch of a photoelectrical coupler, and 10A is as the driver of 10B, when the luminous utmost point 10A energising of photoelectrical coupler, and the switch 10B conducting of photoelectrical coupler.The 11st, the control circuit transformer, the 12nd, the control circuit rectifier bridge, the 13rd, control circuit filter capacitor, 2A are relay coils, during as the 2A of main circuit switch driver energising, relay switch 2B and 2C closure.Main circuit and primary power are connected, and after driver module 8 obtains WV, transmit trigger voltage through clock cable 14 to triode 15, thereby make triode 15 conductings.The 16th, charging capacitor, diode 17 are used for preventing that the electric energy on the charging capacitor 16 from leaking.Play button 18,19 through hand by operating.20A and 21A are relay coils, and switch 20B is closed during relay coil 20A energising, and switch 21B is closed during relay coil 21A energising.Diode 22 and 23 is used for preventing that push button 19 or 20 o'clock two

relay coil

20A and 21A from switching on simultaneously.Resistance 24 is current-limiting resistances of the luminous utmost point 10A of photoelectrical coupler.

When the needs machine operation; Press play button 18 and keep, the electric energy of contain will be through luminous utmost point 10A, current-limiting resistance 24 conductings of play button 18, diode 22, optocoupler on the charging capacitor 16, thereby make optical coupled switch 10B conducting; Transformer 11 begins out work; Output voltage is supplied with relay coil 2A behind rectifier bridge 12 and filter capacitor 13 rectifying and wave-filterings, thereby makes relay switch 2B and 2C in the main circuit closed.

After relay switch 2B and the 2C closure, main power transformer 3 output voltages behind rectifier bridge 4 and filter capacitor 5 rectifying and wave-filterings, provide WV to H bridge switching circuit 6 and driver module 8.

After driver module 8 obtains WV, provide trigger pip to make its conducting through clock cable 14 immediately to triode 15.Like this, the voltage behind rectifier bridge 4 and filter capacitor 5 rectifying and wave-filterings is also given relay coil 2A power supply simultaneously, and this process was accomplished in the extremely short time.

Because play button 18 keeps the pressurized conducting state always, the voltage behind rectifier bridge 4 and filter capacitor 5 rectifying and wave-filterings is through diode 17, and play button 18 makes relay switch 20B closed to relay coil 20A power supply.Simultaneously, the voltage behind rectifier bridge 4 and filter capacitor 5 rectifying and wave-filterings also gives charging capacitor 16 chargings through diode 17 simultaneously, for next operation is got ready.

Driver module 8 provides drive signal through bus 25 to H bridge switching circuit 6 after receiving relay switch 20B closure signal, makes metal-oxide-semiconductor 6A and 6D conducting, the running of motor 7 forwards.

Unclamp play button 18, relay coil 20A dead electricity, relay switch 20B breaks off.After relay switch 20B broke off, driver module 8 inner single-chip microcomputers scanned the variation of voltage on the corresponding pin, and internal processes stops signal to H bridge switching circuit 6 being provided immediately, motor 7 stalls.The certain hour signal on the interrupt clock signal wire 14 again but internal processes will be delayed time, for example 20 seconds, therefore, triode 15 will keep conducting state a period of time.

The time-delay interruption of the single-chip microcomputer of driver module 8 inside is designs like this: in case obtain WV; In 0.3 second through the trigger voltage of clock cable 14 output triodes 15; Whether and it is closed to scan 20B or 21B simultaneously; If any any closure, 8 of driver modules provide drive signal through bus 25 to H bridge switching circuit 6 immediately, make motor 7 runnings.As do not have, 8 of driver modules stop the trigger voltage signal to triode 15 outputs after the time of program setting.In single-chip microcomputer, writing such signal handler is a kind of general common knowledge technology.

Unclamp play button 18, the luminous utmost point 10A no current of optocoupler passes through, and optical coupled switch 10B turn-offs, and transformer 12 will no longer be given relay coil 2A power supply with rectifier bridge 13.But because the voltage behind rectifier bridge 4 and filter capacitor 5 rectifying and wave-filterings still can be through relay coil 2A, triode 15 conductings, relay coil 2A works on, and relay switch 2B and 2C still remain closed.In case therefore relay coil 2A conducting, after relay switch 2B and the 2C closure, main circuit will be realized self-locking, can automatic cutout.After reach, triode 15 turn-offs until delay time, and main circuit and primary power just can be completely severed.

In the delay time of this program setting, continue operation element button 18 or 19, relay switch 2B and 2C can not repeat closed the disconnection.Because what relay switch 2B and 2C upward passed through is the principal current of system; Principal current is usually than higher; One of this design remarkable advantages is the life-span that can effectively prolong switch, and in the ordinary course of things, this makes selects for use the relatively low relay of cost to become possibility.

Delay time is after reach, and driver module 8 inner single-chip microcomputers no longer provide trigger voltage to triode 15, and triode 15 turn-offs, relay coil 2A outage, and relay switch 2B and 2C will break off, and whole like this main circuit will be by cut-out fully from primary power.And as previously mentioned, because optical coupled switch 10B just turn-offs when play button pine 18 leaves, control circuit is also broken off from primary power fully, and total system is consumed power not, realizes zero-power truly.

Need to prove, be used as delay switch with triode 15 here, but also available relay or photoelectrical coupler replace, this alternative connection is a kind of method of knowing altogether.

Press play button 19, relay coil 21A work, relay switch 21B is closed, and driver module 8 provides signal to H bridge switching circuit 6 drive signal to be provided through bus 25, and driven MOS pipe 6B and 6C conducting make motor 7 antiports.Other part working condition of system is identical when pressing play button 18, no longer elaborates here.

Unclamp play button 19, relay coil 21A dead electricity, relay switch 21B breaks off.Driver module 8 stops signal to H bridge switching circuit 6 being provided, motor 7 stalls.Other part working condition of circuit is identical when unclamping play button 18.

If use for the first time or do not use charging capacitor 17 to discharge fully for a long time, operation element button 18 or 19 o'clock, relay coil 2A can not work, so system can't start.At this moment, only need press manual powered switch 9, transformer 11 begins out work; Output voltage is supplied with relay coil 2A behind rectifier bridge 12 and filter capacitor 13 rectifying and wave-filterings, thereby makes relay switch 2B and 2C closure; Main circuit is started and self-locking, and this process was accomplished in the extremely short time.Afterwards, press play button 18 or 19, the course of work of system is unclamped play button 18 or 19 with foregoing identical, and the course of work of system is also with foregoing identical.

Though charging capacitor can possibly can't continue the above time all around by voltage; But; Only need once press charge switch fast, this will make electric capacity obtain once charging, and guaranteeing that electric capacity is minimum can be in three weeks provide electric energy one time for operation element button effectively; And obtain once charging automatically, keep the startup electric energy at least once in next 3～4 weeks.

Among Fig. 2, adopt the break-make control of bidirectional triode thyristor as main circuit, 26A is the control utmost point of bidirectional triode thyristor, and 26B and 26C are the switch poles of bidirectional triode thyristor, and after control utmost point 26A conducting, switch pole 26B and 26C are closed, and the circuit working principle is identical with Fig. 1.

Among Fig. 3, adopt the on-off switch of relay as control circuit, 27A relay coil, 27B are relay switches, and after control utmost point 27A conducting, relay switch 27B is closed, and the circuit working principle is identical with Fig. 1.

The control section that should be noted in the discussion above that the principle of this invention is not limited to be used with conventional large-scale power system, adopts a similar primary power on-off switch device, can save consumption of electric effectively and prevent in the zone, to produce electric field.

What describe in the above instructions is embodiment of the present invention; Various not illustrating constitutes restriction to flesh and blood of the present invention; Under the those of ordinary skill of technical field after having read instructions can to before described embodiment make an amendment or be out of shape, and do not deviate from essence of an invention and scope.

Claims

1. standby zero-power on-off control system, be used for motorized adjustment civilian and industrial on electric equipment, it is characterized in that: have main circuit (I) and control circuit (II); Described main circuit (I) front end is provided with main circuit switch; Described control circuit (II) front end is provided with control circuit switch (10B), and system starts the play button of electric equipment under holding state; Through control circuit switch driver (10A) trigger control circuit switch (10B) thus closed make control circuit (II) work; Drive main circuit switch by control circuit (II) again and start, thereby make main circuit (I) and primary power (1) connect, realize the adjustment process of electric equipment; After accomplishing adjustment process; Unclamp the play button of electric equipment, control circuit switch (10B) also breaks off immediately, and control circuit (II) quits work; Described main circuit switch is connected through breaking off after delaying time and making main circuit (I) break off with primary power (1), and system comes back to holding state; Described main circuit (I) comprises main circuit switch, main circuit transformer (3), main circuit rectifier bridge (4), filter capacitor (5) that is connected with primary power (1) break-make and the H bridge switch (6) and motor (7) of realizing regulating electric equipment, is electrically connected between the each several part; Described control circuit (II) comprises manual powered switch (9), control circuit transformer (11), control circuit rectifier bridge (12), filter capacitor (13) that is electrically connected each other and the main circuit switch driver (2A) that drives main circuit (I) switch closure or disconnection; After main circuit (I) and primary power (1) are connected; Primary power (1) is driver (2A) power supply of main circuit switch; Thereby form a latching circuit; The current supply circuit of described latching circuit is connected thereby make main circuit (I) break off with primary power (1) through the cut-out of delaying time of triode or photoelectrical coupler or relay; The play button of described electric equipment is connected with a chargeable electric capacity (16), and described chargeable electric capacity (16) provides stored electric energy start-up control contactor (10B) under the system standby state.

2. standby zero-power on-off control system as claimed in claim 1 is characterized in that: described manual powered switch (9) is direct start-up control circuit (II) when control circuit switch (10B) can't start, thereby starts main circuit (I); It is described chargeable electric capacity (16) charging that main circuit (I) is connected the back with primary power (1).

3. standby zero-power on-off control system as claimed in claim 1 is characterized in that: described main circuit switch is relay or bidirectional triode thyristor.

4. standby zero-power on-off control system as claimed in claim 1 is characterized in that: described control circuit switch (10B) is relay or photoelectrical coupler.