CN102545340A - Power on and power off control circuit, power on and power off control method and power supply device - Google Patents
Power on and power off control circuit, power on and power off control method and power supply device Download PDFInfo
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- CN102545340A CN102545340A CN2012100264301A CN201210026430A CN102545340A CN 102545340 A CN102545340 A CN 102545340A CN 2012100264301 A CN2012100264301 A CN 2012100264301A CN 201210026430 A CN201210026430 A CN 201210026430A CN 102545340 A CN102545340 A CN 102545340A
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Abstract
An embodiment of the invention discloses a power on and power off control circuit, a power on and power off control method and a power supply device, which relate to the power supply field and enable a storage battery to be capable of achieving safe and reliable power on and power off under the condition that a bus bar has no voltage and a control circuit is not connected. The power on and power off control circuit comprises a first-level circuit, a second-level circuit, a third-level circuit, a control circuit, a first automatic switch, a second automatic control switch, a self-keeping switch and a first manual switch. The first manual switch is used for enabling the second automatic switch or the self-keeping switch to be in short circuit mode. After the first manual switch is closed, the first automatic switch is led to be closed when the second-level circuit is not connected, or the second automatic switch and the first automatic switch are led to be closed sequentially when the third-level circuit is disconnected. The first-level circuit is connected, the bus bar generates voltage and further controls the control circuit, the third-level circuit is connected, the power on state is built, and the first manual switch is opened after the power on state is built, so that the control circuit can control power on and power off of the storage battery.
Description
Technical field
The embodiment of the invention relates to field of power supplies, relates in particular to a kind of power-on and power-off control circuit, power-on and power-off control method and supply unit.
Background technology
Power supply is the electric energy that direct current or alternating current are provided to equipment, and it is the important component part that system relies and normally moves.Fundamental power supply is divided into interchange fundamental power supply and direct current fundamental power supply.Exchanging fundamental power supply is the low-voltage alternating current power supply that is provided by civil power or stand-by generator group.The direct current fundamental power supply is the power supply that direct voltage is provided to various device and DC converter, provides by rectifier output or by batteries.Alternating current just often, rectifier is supplied with whole load currents; When AC interruptions, when rectifier quits work, batteries discharge supply load electric current; When AC power is recovered, when rectifier is devoted oneself to work, supplied with whole load currents by rectifier again.Uninterrupted in order to guarantee DC power supply, batteries is absolutely necessary.
In the prior art, the monitoring unit control that power on and the following electricity of batteries generally monitored by core; But, do not have voltage at busbar, under the situation that the core monitoring CPU does not power on; CPU can't make storage battery carry out load and power on; And forget easily and close ship type self-lock switch, make storage battery can't descend electricity and cause storage battery emptying, have very big potential safety hazard.
Summary of the invention
Embodiments of the invention provide a kind of power-on and power-off control circuit, the mode that adopts hand switch and self-supporting switch to combine, thus make batteries not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.
Embodiments of the invention adopt following technical scheme:
On the one hand, the embodiment of the invention provides a kind of power-on and power-off control circuit, comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch and first hand switch;
Wherein: the electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop
Said first order loop is used for after conducting, making batteries to the busbar input voltage;
Said first automatic switch is used for after the loop conducting of the said second level closed, and then the said first order of conducting loop;
Said second automatic switch is used for after the loop conducting of the said third level closed, and then loop, the said second level of conducting;
Said self-supporting switch is used for after said control loop conducting closed, and then the said third level of conducting loop;
Said first hand switch; Be used for said second automatic switch of short circuit or said self-supporting switch; Make behind the said first manual switch closure loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
On the one hand; The embodiment of the invention provides a kind of power-on and power-off control method; This method is applied in the power-on and power-off control circuit that comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop; Said first order loop is used for after conducting, making batteries to the busbar input voltage; Said first hand switch is used for said first automatic switch of short circuit or second automatic switch, and this method comprises:
Closed said first hand switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively; The loop conducting of the said first order; Busbar produces voltage, and then makes control loop, the conducting of third level loop, and power-up state is set up;
Break off said first hand switch, said control loop is controlled said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
On the one hand, the embodiment of the invention provides a kind of supply unit, comprises the power-on and power-off control circuit, and batteries, and said power-on and power-off control circuit is controlled powering on of said batteries and following;
Said power-on and power-off control circuit comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of wherein said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop, and the two ends in said first order loop connect the negative pole and the cathode bus bar of said batteries respectively;
The said electric control loop of going up is used for through said first hand switch of closure; And then said first automatic switch of short circuit or second automatic switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries;
Said batteries is used on said, being electrically connected state foundation back to the load input voltage, when said power-down state, stops to the load input voltage.
Power-on and power-off control circuit, power-on and power-off control method and supply unit that the embodiment of the invention provides; Adopt hand switch with in the mode that combines of self-sustaining electronic switch substitute self-lock switch, said first hand switch plays the short circuit effect to said second automatic switch or said self-supporting switch; The first manual switch closure makes the self-supporting switch closed, and then makes third level circuit communication, and power-up state is set up; Can first hand switch be broken off after the third level circuit communication; First hand switch breaks off the back is controlled storage battery automatically by control circuit power-on and power-off; Thereby make storage battery not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of power-on and power-off control circuit structural representation that Fig. 1 provides for the embodiment of the invention;
The another kind of power-on and power-off control circuit structural representation that Fig. 2 provides for the embodiment of the invention;
The another kind of power-on and power-off control circuit structural representation that Fig. 3 provides for the embodiment of the invention;
The flow chart of a kind of power-on and power-off control method that Fig. 4 provides for the embodiment of the invention;
The flow chart of the another kind of power-on and power-off control method that Fig. 5 provides for the embodiment of the invention;
The structural representation of a kind of supply unit that Fig. 6 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The power-on and power-off control circuit generally comprises first order loop, loop, the second level, third level loop and a ship type self-lock switch; Wherein: first order loop is used for after conducting, making batteries to the busbar input voltage; Loop, the second level is used to control said first order loop break-make, and said ship type self-lock switch is used for loop, the said second level of short circuit; Control loop is used to control loop, said second level break-make.
Powering on and the general monitoring unit control of electricity down of batteries by the core monitoring; But, there is not voltage at busbar, under the situation that core monitoring central processor CPU does not power on, CPU can't make storage battery carry out load and power on.
Utilize in the process that above-mentioned control circuit realizes that storage battery powers on; Need to keep the closure of ship type self-lock switch just can make keeping of the connected state that powers on; Ship type self-lock switch breaks off and just can make under the storage battery; When forgetting when closing ship type self-lock switch, can cause storage battery can't descend electricity and the risk of batteries emptying occurs, there is very big potential safety hazard.
The embodiment of the invention provides a kind of electric control loop of going up, and electric control loop comprises on this: first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch and first hand switch;
Wherein: the electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop
Said first order loop is used for after conducting, making batteries to the busbar input voltage;
Said first automatic switch is used for after the loop conducting of the said second level closed, and then the said first order of conducting loop;
Said second automatic switch is used for after the loop conducting of the said third level closed, and then loop, the said second level of conducting;
Said self-supporting switch is used for after said control loop conducting closed, and then the said third level of conducting loop;
Said first hand switch; Be used for said second automatic switch of short circuit or said self-supporting switch; Make behind the said first manual switch closure loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
The power-on and power-off control circuit that the embodiment of the invention provides, the mode that adopts hand switch and self-sustaining electronic switch to combine substitutes self-lock switch, and said first hand switch plays the short circuit effect to said second automatic switch or said self-supporting switch; The first manual switch closure makes the self-supporting switch closed, and then makes third level circuit communication, and power-up state is set up; Can first hand switch be broken off after the third level circuit communication; First hand switch breaks off the back is controlled storage battery automatically by control circuit power-on and power-off; Thereby make storage battery not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.
A kind of power-on and power-off control circuit that another embodiment of the present invention provides; Referring to Fig. 1; Fig. 2 comprises: first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch 106 and first hand switch 107;
Wherein,
First order loop comprises the fusible core 110 of series connection successively, the contact system and the shunt 109 of first automatic switch 101, wherein connects the negative pole BAT-104 of batteries near an end of fusible core 110, other end connection-48V busbar 103 (cathode bus bar);
Loop, the second level comprises successively the contact system, diode of second automatic switch 105 of series connection and the electromagnetic system of first automatic switch 101 corresponding with the contact system of first automatic switch 101; Wherein be connected between the contact system of fusible core 110 and first automatic switch 105 in the first order loop near an end of second automatic switch, 105 contact systems; The other end connects RTN+ busbar 102 (anodal busbars), is 0V in this specific embodiment;
Connect first automatic switch 101 closure after the loop conducting of the said second level in first order loop and loop, the second level, and then make the conducting of first order loop; Break off the back in loop, the second level and break off, and then make first order loop break off, thereby realize of the control of loop, the second level first order loop break-make.This first automatic switch 101 can be selected contactor or relay, and the embodiment of the invention does not limit this; But because, so the preferred contactor that uses of embodiment of the invention suggestion because contactor can frequently close the overload current that closes, carries and cut-off normal current and regulation.Concrete; Present embodiment is that contactor 101 is that example describes with first automatic switch; This contactor 101 comprises electromagnetic system and contact system, wherein electromagnetic system (armature, static iron core; Solenoid) be connected in the loop, the second level, contact system (normally open contact and normally closed interlock) is connected in the first order loop.Wherein, this electromagnetic system is by armature, static iron core, and solenoid is formed; This contact system comprises normally open contact and normally closed interlock.If loop, the second level is connected, the solenoid energising of contactor 101 produces very strong magnetic field; Make static iron core produce electromagnetic attraction and attract armature, and drive the contact system action, this action is broken off for normally closed interlock; Normally open contact is closed, makes first order loop connect; When control circuit cuts off the power supply, coil blackout, electromagnetic attraction disappears, and armature discharges under the effect of retracting spring, and contact system is restored, and promptly normally closed interlock is closed, and normally open contact breaks off, and makes first order loop break off.
Third level loop comprises; The electromagnetic system of second automatic switch 105 and second diode 112; The unified end of the electromagnetic system of this second automatic switch 105 connects the positive pole of second diode 112; The other end connects self-supporting switch 106 contact system, the negative pole connection-48V busbar 103 of this second diode 112, and the other end of this self-supporting switch's 106 electromagnetic system connects RTN+ busbar 102.
Should go up electric control loop and comprise that also the positive pole of the 3rd diode 111, the three diodes 111 connects the positive pole of second diode 112, negative pole connects the negative pole BAT-104 of batteries.
Second automatic switch 105 that connects loop, the second level and third level loop is closed after the loop conducting of the said third level, and then makes the conducting of loop, the second level; Break off the back in third level loop and break off, and then loop, the second level is broken off, thereby realize of the control of third level loop loop, second level break-make.This second automatic switch 105 can be selected contactor or relay, but the embodiment of the invention does not limit this.Concrete, present embodiment is that relay 105 is that example describes with second automatic switch, this relay 105 comprises electromagnetic system and contact system; The electromagnetic system of this relay 105 is connected in the third level loop, and contact system is connected in the loop, the second level, wherein; Electromagnetic system comprises armature; Static iron core, coil, contact system comprise normally opened contact and normally-closed contact; If third level loop is connected, the electric current that the coil midstream in the above-mentioned electromagnetic system is certain excessively produces galvanomagnetic effect; Armature is inhaled to static iron core under the effect of electromagnetic attracting force, and drives the contact system action, and this action is broken off for normally closed interlock; Normally open contact is closed, makes second level circuit communication.Behind coil blackout, the suction of electromagnetism also disappears thereupon, and armature will return original position at the reaction force of spring, and contact system is restored, and promptly normally closed interlock is closed, and normally open contact breaks off, and makes loop, the second level break off.
Control circuit comprises the self-supporting switch's 106 who connects successively electromagnetic system, the signaling switch 108 and first diode 113 that controlled by CPU; Wherein the end near self-supporting switch 106 electromagnetic system connects supply voltage; VDD for example, the minus earth of first diode 113.
Exemplary, this self-sustaining electronic switch 106 can use magnetic latching relay, but the embodiment of the invention does not limit this.Concrete, present embodiment is that magnetic latching relay is that 106 examples describe with the self-sustaining electronic switch.This magnetic latching relay 106 comprises contact system and electromagnetic system, and this contact system is arranged in the third level loop, and electromagnetic system is arranged in the control loop; Wherein, contact system comprises fixed contact and moving contact, and electromagnetic system comprises excitation coil, static iron core, magnet steel and armature; If control loop is communicated with, then there is electric current to flow through excitation coil, static iron core produces magnetic flux; Magnetic loop is communicated with; Make armature drive the contact action and connect its loop, place, also keep this on-state, third level circuit communication owing to the effect of magnet steel and at the current vanishes back contact; Only if as receive the triggering of electric current in the other direction when excitation coil, static iron core produces opposite magnetic flux, fixed contact and moving contact are broken off, third level loop is broken off.In the present embodiment, the break-make of this magnetic latching relay 106 receives signaling switch 108 controls.
Referring to Fig. 1, this first hand switch 107 can with the parallelly connected setting of the contact system of loop, second level repeat circuit 105, be used for this relay 105 of short circuit; Referring to Fig. 2, this first hand switch 107 also can with the parallelly connected setting of contact system of magnetic latching relay 106 in the third level loop, be used for short circuit magnetic latching relay 106.Dual mode all can reach the purpose that powers on, and different is, when adopting first kind of mode; First hand switch 107 is in big electric current side, and the current ratio of flowing through after the connection is bigger, need select the hand switch of big electric current for use; Adopt a kind of mode in back, this first hand switch 107 is in little electric current side, and the current ratio of flowing through after the connection is less; Select for use the hand switch of less electric current to satisfy, and safety and reliability.Introduce powering on of dual mode below respectively.
For first kind of mode,, when needing to be serviced or power on, close first hand switch 107 referring to Fig. 1.After first hand switch 107 is closed; Relay in the loop, the second level 105 is played the short circuit effect, be equivalent to second level circuit communication, promptly connect the circuit communication of the negative pole BAT-104 of RTN+ busbar 102 and batteries; Formation-48V power supply makes contactor 101 closures.After contactor 101 closures, make first order circuit communication, the negative pole BAT-104 of batteries is communicated with-48V busbar 103, positive and negative (RTN+/-48V) busbar produces voltage, CPU electrifying startup.After CPU starts, send upward electric control signal to signaling switch 108.Magnetic latching relay 106 connections behind the electric control signal in the transmission, power-up state is set up and is also kept power-up state, this moment to break off first hand switch 107, by the power-on and power-off of CPU control batteries.Closed time of present embodiment first hand switch 107 need could accomplish powering on more than or equal to CPU start-up time.
For the second way,, when needing to be serviced or power on, close first hand switch 107 referring to Fig. 2.After first hand switch 107 is closed, magnetic latching relay 106 is played the short circuit effect, be equivalent to third level circuit communication; Promptly connect the circuit communication of the negative pole BAT-104 of RTN+ busbar 102 and batteries, formation-48V power supply makes relay 105 closures; After relay 105 closures, second level circuit communication is communicated with, makes contactor 101 closures after the circuit communication of the second level; After contactor 101 closures, first order circuit communication is communicated with ,-48V busbar 103 forms and is communicated with; Positive and negative (RTN+/-after 48V) busbar produced voltage, CPU started.After CPU starts, send the upper and lower electric control signal of storage battery to signaling switch 108.In the transmission behind the electric control signal magnetic latching relay 106 connect and power on, power-up state is set up, and breaks off first hand switch 107 this moment, by the power-on and power-off of CPU control batteries, has avoided forgetting that closing hand switch causes batteries can't descend the potential safety hazard of electricity.Closed time of present embodiment first hand switch 107 need could accomplish powering on more than or equal to CPU start-up time.
The power-on and power-off control circuit that the embodiment of the invention provides; Adopt first hand switch 107 and the mode that magnetic latching relay 106 combines to substitute self-lock switch, relay 105 in the loop, the said 107 pairs of second level of first hand switch or the magnetic latching relay 106 in the third level loop play the short circuit effect; Closed first hand switch 107; Magnetic latching relay 106 closures make third level circuit communication and set up power-up state, can first hand switch 107 be broken off after power-up state is set up; And then make CPU control the power-on and power-off of batteries; Thereby make storage battery not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.
Another embodiment of the present invention also provides a kind of power-on and power-off control circuit, and referring to Fig. 3, it is same as the previously described embodiments that this power-on and power-off control circuit removes other parts of control loop, so in this explanation different portions.
Be provided with second hand switch 114 parallelly connected in this control loop, this signaling switch 108 is played the short circuit effect, be used to control the break-make of this control loop with the signaling switch that receives CPU control 108.
In like manner, first hand switch 107 is the same with above-mentioned embodiment in the present embodiment, and two kinds of connected modes are also arranged, promptly this first hand switch 107 can with the parallelly connected setting of the contact system of loop, second level repeat circuit 105, be used for this relay 105 of short circuit; Also can with the parallelly connected setting of contact system of magnetic latching relay 106 in the third level loop, be used for short circuit magnetic latching relay 106.Though which kind of connected mode, the principle of first hand switch 107 and move same as the previously described embodiments, so present embodiment is that example describes when the weakness side promptly with second kind of connected mode.
Safeguard or when powering on, close after first hand switch 107 and second hand switch, 114, the first hand switches 107 close; Magnetic latching relay 106 is played the short circuit effect, its connect the circuit communication of the negative pole BAT-104 of RTN+ busbar 102 and batteries, formation-48V power supply; Make relay 105 closures; Make second level circuit communication after relay 105 closures, contactor 101 closures after the circuit communication of the second level make first order circuit communication after contactor 101 closures; The negative pole BAT-104 of batteries and-be communicated with between the 48V busbar 102, produce power vd D to the CPU power supply.
After second hand switch, 114 closures; Switching signal 108 is played the short circuit effect, and control loop is communicated with, and the electric current that the control loop connection produces makes magnetic latching relay 106 closures and is kept closed; Make third level circuit communication after magnetic latching relay 106 closures; Power-up state is set up, because VDD level settling time is in the millisecond rank, so utilize the speed that powers on of the power-on and power-off control circuit that the present embodiment body provides fast more a lot of than level second of CPU.
Power-up state is set up the back and is broken off first hand switch 107 and second hand switch 114, by the power-on and power-off of CPU control batteries.After busbar produces voltage; CPU starts and sends power on signal BAT-ON, signal of telecommunication BAT-OFF down to signaling switch 108, for example, and behind-48V busbar 102 under-voltage electricity down; CPU sends down electric BAT-OFF signal to signaling switch 108; Close the level of keeping of batteries contactor, and then connection-48V busbar 102 and the first order loop of the negative pole BAT-104 of batteries are broken off, load down.
Preferably, said first hand switch 107 and second hand switch 114 can be point-touch switch, and pressing can be closed, and it is promptly disconnected to loose one's grip, and makes more convenient operation.
Further preferred, said first hand switch 107 and second hand switch 114 can be two-pass linked switch, and the two can link, and opens simultaneously or closes simultaneously, and more convenient operation is simple and direct.This does not limit the concrete embodiment of the invention to the form of first hand switch 107 and second hand switch 114.
The power-on and power-off control circuit that the embodiment of the invention provides; Utilize 114 pairs of signaling switches 108 of second hand switch to play the short circuit effect; Being equivalent to adopt the mode of physical switch is that the drive signal that second hand switch 114 substitutes CPU is a signaling switch 108; Make the connection of control loop not be subject to restriction start-up time of CPU, the relay 105 in loop, the 107 pairs of second level of first hand switch or the magnetic latching relay 106 in third level loop play the short circuit effect; Only need closed first hand switch 107 and second hand switch 114; Third level loop is communicated with rapidly, and power-up state is set up rapidly, and power-up state is closed first hand switch 107 and second hand switch 114 after setting up; Power-on and power-off by CPU control storage battery; Avoid simple dependence CPU to carry out power-on and power-off when control, received the power on defective of speed of CPU limitations affect start-up time, realized powering on safely and fast.
The power-on and power-off control circuit that the embodiment of the invention provides also can be applied in interchange or on high-tension side powering on behind the loop-coupled power supply of the change first order, behind electricity under the protection; Owing to need on-site maintenance, when needs power on, operate in secure side; Only need closed hand switch, get final product energized.Rapidly and safety.
On the one hand; The embodiment of the invention provides a kind of power-on and power-off control method; This method is applied in the power-on and power-off control circuit that comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the said first automatic switch contact system is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop; Said first order loop is used for after conducting, making batteries to the busbar input voltage; Said first hand switch is used for said first automatic switch of short circuit or second automatic switch, and referring to Fig. 4, this method comprises:
S401: closed said first hand switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively; The loop conducting of the said first order; Busbar produces voltage, and then makes control loop, the conducting of third level loop, and power-up state is set up;
S402: break off said first hand switch, said control loop is controlled said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
The power-on and power-off control method that the embodiment of the invention provides; The mode that adopts first hand switch and magnetic latching relay to combine substitutes self-lock switch, and said first hand switch plays the short circuit effect to the magnetic latching relay in relay in the loop, the second level or the third level loop; Closed first hand switch; Magnetic latching relay is closed, makes third level circuit communication and sets up power-up state, and power-up state can break off first hand switch after setting up; And then make CPU control the power-on and power-off of batteries; Thereby make batteries not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.
Further; Said control circuit also comprises the signaling switch and first diode that receives central processor CPU control; The two ends of said signaling switch connect positive pole and the said self-supporting switch's of first diode a end of electromagnetic system respectively; The other end of said self-supporting switch's electromagnetic system connects power supply, the minus earth of said first diode; The said electric control loop of going up also comprises second hand switch, and said second hand switch is used for the said signaling switch of short circuit, and this method comprises,
S501: closed said first hand switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively; The loop conducting of the said first order, busbar produces voltage;
S502: closed said second hand switch, and make said control loop not during conducting said self-supporting switch closed, make the conducting of third level loop, power-up state set up;
S503: break off said first hand switch and second hand switch, said control loop is controlled said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
The power-on and power-off control method that the embodiment of the invention provides; Utilize second hand switch that signaling switch is played the short circuit effect; The mode that is equivalent to adopt physical switch i.e. second hand switch drive signal that substitutes CPU is a signaling switch; Make the connection of control loop not be subject to restriction start-up time of CPU, first hand switch plays the short circuit effect to the relay in loop, the second level or the magnetic latching relay in third level loop; Only need closed first hand switch and second hand switch, third level loop is communicated with rapidly, and power-up state is set up rapidly; Power-up state is closed first hand switch and second hand switch after setting up; By the power-on and power-off of CPU control storage battery, the potential safety hazard of having avoided batteries can't descend electricity to cause is when having avoided simple dependence CPU to carry out power-on and power-off control again; Receive the power on defective of speed of CPU limitations affect start-up time, realize powering on safely and fast.
On the one hand, the embodiment of the invention provides a kind of supply unit, and referring to Fig. 6, this supply unit comprises power-on and power-off control circuit 20, and batteries 10, and said power-on and power-off control circuit 20 is controlled powering on of 10 groups on said storage battery and following;
Said power-on and power-off control circuit 20 comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of wherein said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop, and the two ends in said first order loop connect the negative pole and the cathode bus bar of said batteries respectively;
The said electric control loop 20 of going up is used for through said first hand switch of closure; And then said first automatic switch of short circuit or second automatic switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries;
Said batteries is used on said, being electrically connected state foundation back to the load input voltage, when said power-down state, stops to the load input voltage.
Further,
Said first order loop also comprises fusible core and shunt; One end of said fusible core and shunt is connected the two ends of the contact system of said first electronic switch respectively; The other end of said fusible core connects the negative pole of said storage battery, and the other end of said shunt connects cathode bus bar;
Said third level loop also comprises second diode; The two ends of the electromagnetic system of said second electronic switch connect positive pole and the said self-supporting switch's of said second diode a end of contact system respectively; The other end of said self-supporting switch's contact system connects anodal busbar, and the negative pole of said second diode connects cathode bus bar;
The said electric control loop of going up also comprises the 3rd diode, and the positive pole of said the 3rd diode connects the positive pole of said second diode, and negative pole connects the negative pole of storage battery.
Further; Said control loop also comprises the signaling switch and first diode that receives central processor CPU control; The two ends of said signaling switch connect positive pole and the said self-supporting switch's of first diode a end of electromagnetic system respectively; The other end of said self-supporting switch's electromagnetic system connects power supply, the minus earth of said first diode;
Said power-on and power-off control circuit 20 also comprises second hand switch; Said second hand switch is used for the said signaling switch of short circuit; Make behind the said second manual switch closure said control loop not during conducting said self-supporting switch closed, and then make the conducting of third level loop, power-up state is set up.
The supply unit that the embodiment of the invention provides; The mode that the power-on and power-off control circuit adopts first hand switch and magnetic latching relay to combine substitutes self-lock switch, and said first hand switch plays the short circuit effect to the magnetic latching relay in relay in the loop, the second level or the third level loop; Closed first hand switch; Magnetic latching relay is closed, makes third level circuit communication and sets up power-up state, and power-up state can break off first hand switch after setting up; And then make CPU control the power-on and power-off of batteries; Thereby make batteries not have voltage at busbar, control loop does not have under the situation of conducting, realizes safe and reliable pressure power-on and power-off.。
Those of ordinary skills can recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each certain applications, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, for the convenience described with succinct, the concrete course of work of the system of foregoing description, device and unit can repeat no more at this with reference to the corresponding process among the preceding method embodiment.
In several embodiment that the application provided, should be understood that the system that is disclosed, apparatus and method can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.Another point, the coupling each other that shows or discuss or directly coupling or communication to connect can be through some interfaces, the INDIRECT COUPLING of device or unit or communication connect, and can be electrically, machinery or other form.
Said unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of unit wherein of reality.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.
If said function realizes with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words or the part of this technical scheme can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the said method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
Description through above execution mode; The those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware; Common hardware comprises universal integrated circuit, universal cpu, general-purpose storage, universal elements etc.; Can certainly comprise that application-specific integrated circuit (ASIC), dedicated cpu, private memory, special-purpose components and parts wait and realize through specialized hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the method for each embodiment of the present invention.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (11)
1. a power-on and power-off control circuit is characterized in that, comprising: first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch and first hand switch;
Wherein: the electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop
Said first order loop is used for after conducting, making batteries to the busbar input voltage;
Said first automatic switch is used for after the loop conducting of the said second level closed, and then the said first order of conducting loop;
Said second automatic switch is used for after the loop conducting of the said third level closed, and then loop, the said second level of conducting;
Said self-supporting switch is used for after said control loop conducting closed, and then the said third level of conducting loop;
Said first hand switch; Be used for said second automatic switch of short circuit or said self-supporting switch; Make behind the said first manual switch closure loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
2. power-on and power-off control circuit according to claim 1; It is characterized in that; Said control circuit also comprises the signaling switch and first diode that receives central processing unit control; The two ends of said signaling switch connect positive pole and the said self-supporting switch's of said first diode a end of electromagnetic system respectively, and the other end of said self-supporting switch's electromagnetic system connects power supply, the minus earth of said first diode.
3. power-on and power-off control circuit according to claim 2; It is characterized in that; Also comprise second hand switch, said second hand switch is used for the said signaling switch of short circuit, make behind the said second manual switch closure said control loop not during conducting said self-supporting switch closed; And then making the conducting of third level loop, power-up state is set up.
4. power-on and power-off control circuit according to claim 3 is characterized in that, said first hand switch and said second hand switch are the point contact type hand switch.
5. power-on and power-off control circuit according to claim 4 is characterized in that, said first hand switch and said second hand switch are two-pass linked switch.
6. according to each described power-on and power-off control circuit of claim 1-5, it is characterized in that,
Said first order loop also comprises fusible core and shunt; One end of said fusible core and shunt is connected the two ends of the contact system of said first electronic switch respectively; The other end of said fusible core connects the negative pole of said batteries, and the other end of said shunt connects cathode bus bar;
Said third level loop also comprises second diode; The two ends of the electromagnetic system of said second electronic switch connect positive pole and the said self-supporting switch's of said second diode a end of contact system respectively; The other end of said self-supporting switch's contact system connects anodal busbar, and the negative pole of said second diode connects cathode bus bar;
The said electric control loop of going up also comprises the 3rd diode, and the positive pole of said the 3rd diode connects the positive pole of said second diode, and negative pole connects the negative pole of batteries.
7. power-on and power-off control method; It is characterized in that; This method is applied in the power-on and power-off control circuit that comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop; Said first order loop is used for after conducting, making batteries to the busbar input voltage; Said first hand switch is used for said first automatic switch of short circuit or second automatic switch, and this method comprises:
Closed said first hand switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively; The loop conducting of the said first order; Busbar produces voltage, and then makes control loop, the conducting of third level loop, and power-up state is set up;
Break off said first hand switch, said control loop is controlled said self-supporting switch's break-make, and then controls powering on and descending of said batteries.
8. a kind of power-on and power-off control method as claimed in claim 7; It is characterized in that; Said control circuit also comprises the signaling switch and first diode that receives central processing unit control; The two ends of said signaling switch connect positive pole and the said self-supporting switch's of first diode a end of electromagnetic system respectively, and the other end of said self-supporting switch's electromagnetic system connects power supply, the minus earth of said first diode;
The said electric control loop of going up also comprises second hand switch, and said second hand switch is used for the said signaling switch of short circuit, and this method comprises,
Closed said first hand switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively; The loop conducting of the said first order, busbar produces voltage;
Closed said second hand switch, and make said control loop not during conducting said self-supporting switch closed, make the conducting of third level loop, power-up state set up;
Break off said first hand switch and second hand switch, said control loop is controlled said self-supporting switch's break-make, and then controls the power-on and power-off of said batteries.
9. a supply unit is characterized in that, comprises the power-on and power-off control circuit, and batteries, and said power-on and power-off control circuit is controlled powering on of said batteries and following;
Said power-on and power-off control circuit comprises first order loop, loop, the second level, third level loop, control loop, first automatic switch, second automatic switch, self-supporting switch, first hand switch; The electromagnetic system of wherein said first automatic switch is arranged in the loop, the said second level, the contact system of said first automatic switch is arranged in the said first order loop; The electromagnetic system of said second automatic switch is arranged in the said third level loop, the contact system of said second automatic switch is arranged in the loop, the said second level; Said self-supporting switch's electromagnetic system is arranged in the said control loop, said self-supporting switch's contact system is arranged in the said third level loop, and the two ends in said first order loop connect the negative pole and the cathode bus bar of said batteries respectively;
The said electric control loop of going up is used for through said first hand switch of closure; And then said first automatic switch of short circuit or second automatic switch; Make loop, the said second level not during conducting the closed or said third level loop of said first automatic switch not during conducting said second automatic switch and first automatic switch closed successively, the loop conducting of the said first order, busbar produces voltage; And then making control loop, the conducting of third level loop, power-up state is set up; Said first hand switch is set up back the disconnection at power-up state, makes said control loop control said self-supporting switch's break-make, and then controls powering on and descending of said batteries;
Said batteries is used for setting up the back to the load input voltage at said power-up state, when said power-down state, stops to the load input voltage.
10. supply unit according to claim 9 is characterized in that,
Said first order loop also comprises fusible core and shunt; One end of said fusible core and shunt is connected the two ends of the contact system of said first electronic switch respectively; The other end of said fusible core connects the negative pole of said storage battery, and the other end of said shunt connects cathode bus bar;
Said third level loop also comprises second diode; The two ends of the electromagnetic system of said second electronic switch connect positive pole and the said self-supporting switch's of said second diode a end of contact system respectively; The other end of said self-supporting switch's contact system connects anodal busbar, and the negative pole of said second diode connects cathode bus bar;
The said electric control loop of going up also comprises the 3rd diode, and the positive pole of said the 3rd diode connects the positive pole of said second diode, and negative pole connects the negative pole of storage battery.
11. a kind of supply unit according to claim 10; It is characterized in that; Said control circuit also comprises the signaling switch and first diode that receives central processing unit control; The two ends of said signaling switch connect positive pole and the said self-supporting switch's of first diode a end of electromagnetic system respectively, and the other end of said self-supporting switch's electromagnetic system connects power supply, the minus earth of said first diode;
Said power-on and power-off control circuit also comprises second hand switch; Said second hand switch is used for the said control loop of short circuit; Make behind the said second manual switch closure said control loop not during conducting said self-supporting switch closed, and then make the conducting of third level loop, power-up state is set up.
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