CN106653434B - Combination switch and its accurate operating passing zero control method - Google Patents
Combination switch and its accurate operating passing zero control method Download PDFInfo
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- CN106653434B CN106653434B CN201710029826.4A CN201710029826A CN106653434B CN 106653434 B CN106653434 B CN 106653434B CN 201710029826 A CN201710029826 A CN 201710029826A CN 106653434 B CN106653434 B CN 106653434B
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- inductance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Relay Circuits (AREA)
Abstract
The invention discloses combination switch and its accurate operating passing zero control methods, are related to switching technique field, the combination switch can in the current zero-crossing point of alternating current switching, switching electric current is small, and when switching will not burn out switch contact.Including controller, one end of reverse-blocking tetrode thyristor Kb and one end of magnetic latching relay switch Kc are connect with No.1 node respectively, the other end of reverse-blocking tetrode thyristor Kb, the other end of magnetic latching relay switch Kc, one end of inductance La, the positive terminal of diode D1 and the negative pole end of diode D3 are connect with node M a respectively, the other end of inductance La, one end of capacitance Ca and one end of capacitance C0 are connect with node M b respectively, the collector of phototriode Q0 is connect with one end of resistance R0 and controller respectively, the other end of resistance R0 is connect with from electricity consumption power supply module, silicon driving circuit is connect with the control terminal of reverse-blocking tetrode thyristor Kb and controller respectively, Magnetic driving circuit is connect with the control terminal of magnetic latching relay switch Kc and controller respectively.
Description
Technical field
The present invention relates to switching technique fields, and in particular to combination switch and its accurate operating passing zero control method.
Background technology
The existing switch being connected in alternating current circuit, when the electric current in alternating current circuit is larger, switch is disconnected or is closed
There is spark in Shi Douhui, and switch can be burnt out when spark is serious.Spark Producing reason is disconnected in switch when switch is opened or closed
Caused by dash current when opening or being closed is larger.To reduce the dash current that switch is opened or closed, only exchanging
It is split when the current zero-crossing point of electricity to put row into that dash current of operation when just switch be made to be opened or closed is opened or closed is smaller.
Therefore a kind of switch that can be opened or closed in the current zero-crossing point of alternating current is designed to be very necessary.
Invention content
The present invention is to solve the above-mentioned deficiency of existing switch, and providing a kind of can accurately detect AC current zero crossing
When correct time point, moreover it is possible to correct time point in current zero-crossing point carries out switching, and switching electric current is small, and when switching will not burn
Bad switch contact, the easily combination switch to carrying out charge and discharge control from the battery pack of electricity consumption power supply module.
To achieve the goals above, the present invention uses following technical scheme：
Combination switch, including No.1 node, No. two nodes, reverse-blocking tetrode thyristor Kb, magnetic latching relay switch Kc, node Ma、
Inductance La, node Mb, capacitance Ca, diode D1, diode D2, diode D3, diode D4, capacitance C0, photoelectrical coupler OPT,
Resistance R0, from electricity consumption power supply module, Magnetic driving circuit, silicon driving circuit and controller, photoelectrical coupler OPT includes light-emitting diodes
Pipe D5With phototriode Q0；Reverse-blocking tetrode thyristor KbOne end and magnetic latching relay switch KcOne end respectively with No.1 node
Connection, reverse-blocking tetrode thyristor KbThe other end, magnetic latching relay switch KcThe other end, inductance LaOne end, diode D1Just
Extreme and diode D3Negative pole end respectively with node MaConnection, inductance LaThe other end, capacitance Ca one end and capacitance C0One
End respectively with node MbConnection, the other end of capacitance Ca are connected on No. two nodes, diode D2Positive terminal and diode D4's
Negative pole end is all connected to capacitance C0The other end on, diode D1Negative pole end and diode D2Negative pole end be all connected to it is luminous
Diode D5Positive terminal on, diode D3Positive terminal and diode D4Positive terminal be all connected to light emitting diode D5It is negative
On extreme, phototriode Q0Emitter ground connection, phototriode Q0Collector respectively with resistance R0One end and controller
Connection, resistance R0The other end connect with from electricity consumption power supply module, silicon driving circuit respectively with reverse-blocking tetrode thyristor KbControl terminal and
Controller connect, Magnetic driving circuit respectively with magnetic latching relay switch KcControl terminal connected with controller.
Include battery connection module, can company be sequentially connected in series by several mutually independent single batteries from electricity consumption power supply module
Battery pack made of connecing；From electricity consumption power supply module further include equal with single battery number respectively charger, switching switch and
Current limliting module；Battery connection module includes the bulk charging bindiny mechanism equal with single battery number；It is connected in each bulk charging
Bulk voltage detection chip is respectively equipped in mechanism；The power output end of each charger is one-to-one to be connected to each switching switch choosing
It selects on a terminals at end；The turning end of each switching switch is one-to-one to be connected on one end of current limliting module, each current limliting
In the one-to-one bulk charging bindiny mechanism for being connected to battery connection module of the other end of module；Battery connection module is connected to battery
In group, the control terminal of the battery connection module, each bulk voltage detection chip, the control terminal of each current limliting module and each cut
The control terminal for changing switch is connect with controller respectively；And under the control of the controller, when not being battery pack charging, battery connection
Each mutually independent single battery in battery pack can be sequentially connected in series by module becomes series-connected cell together, when for battery
When group charging, the series-connected cell for being sequentially connected in series together in battery pack can be become mutually independent list by battery connection module
Body battery；
Each power input of charger and the power input of controller are conductively connected to be powered at one and successively control
In mechanism processed, and energization priority control mechanism is first powered to controller when powering on, and is then powered again to charger；In lower electricity
Shi Tong electricity priority control mechanisms first allow charger to power off, and then allow controller to power off again.
The energization priority control mechanism of this programme is first powered by controller, and controller just allows battery connection module will after being powered
The series-connected cell being sequentially connected in series in battery pack together becomes mutually independent single battery, is then electrified to priority control machine
Structure just allows charger to be powered, and can be fully ensured that in this way when charger is powered, is independent from each other between each single battery,
Charging would not be impacted between each single battery, to easily automatically controlled to the battery pack progress charge and discharge from electricity consumption power supply module
System.
This programme when in use, No.1 node is connected on the firewire C of power supply, and No. two nodes are connected to the zero of power supply
On line N.
In the combination switch of this programme, inductance LaUsing high-frequency inductor, inductance LaInductance be tens microhenrys.When controllable
Transwitch KbOr magnetic latching relay switch KcMoment is connected, the impedance of capacitance Ca is about 0, and due to inductance LaPresence, inductance
LaIn conducting moment, frequency changes very greatly, inductance LaImpedance it is also very big, it is suppressed that the dash current of moment is connected in power supply；When
When circuit works normally, since supply frequency is 50Hz power frequencies, then inductance LaImpedance very little.
In inductance LaIn, inductance LaVoltage ULaAdvanced inductance LaElectric current I190 degree, i.e. inductance LaElectric current I1Fall behind electricity
Feel LaVoltage ULa90 degree.
In capacitance C0In, capacitance C0Electric current I2Advanced capacitance C0Voltage UC090 degree, i.e. capacitance C0Voltage UC0Fall behind electricity
Hold C0Electric current I290 degree.
Electric current I1Pass through inductance La, capacitance Ca form closed circuit, then have inductance LaOn voltage ULaAdvanced inductance LaOn
Electric current I190 degree.
As inductance LaVoltage ULaIn node M sometimeaPoint for just, node MbWhen point is negative, then electric current I2From node
MaPoint passes through diode D1, light emitting diode D5, diode D4With capacitance C0Form branch.
Ignore diode D1, light emitting diode D5With diode D4Pressure drop, it is clear that have i.e. ULa=UC0, i.e. inductance LaElectricity
Press ULaEqual to capacitance C0Voltage UC0.Obviously there is inductance LaOn voltage ULaLag capacitance C0On electric current I290 degree, to have
Capacitance C0On electric current I2With inductance LaOn electric current I1It is reversed each other, i.e. electric current I2With electric current I1It is reversed each other.UCNIt is on firewire C
Voltage.
As electric current I2It is positive and be more than light emitting diode D5When luminous minimum current, the output signal U of photoelectrical couplerI0
Become low level from high level, reasonably selects capacitance C0, make capacitance C0On electric current I2Positive zero crossing and hair can be rapidly achieved
Optical diode D5Luminous minimum current.
As electric current I2After positive zero crossing, the output signal U of photoelectrical couplerI0Become low level from high level, due to
Electric current I2With electric current I1Reversely, then there is the output signal U when photoelectrical couplerI0When becoming high level from low level, electric current I1Just
In positive zero crossing.Therefore the output signal U of photoelectrical couplerI0When becoming high level from low level, that is, obtain electric current I1
Zero crossing electric current.When obtaining electric current I1Zero crossing electric current when, controller can give magnetic latching relay switch K immediatelycHair
Go out signal is opened or closed.Allow magnetic latching relay switch K if necessarycIt disconnects, then controller is just opened to magnetic latching relay
Close KcSend out disconnection control signal, magnetic latching relay switch KcIt then turns off；Allow magnetic latching relay switch K if necessarycIt closes
It closes, then controller just gives magnetic latching relay switch KcSend out closure control signal, magnetic latching relay switch KcIt is closed immediately.
This programme switchs magnetic latching relay further according to the correct time point from by obtaining correct time point when current zero-crossing point
KcThe control signal that is opened or closed is sent out to make magnetic latching relay switch KcContact be opened or closed, then flow through magnetic guarantor
Hold relay switch KcElectric current it is small, magnetic latching relay switch K is opened or closed in low currentcSo that magnetic latching relay
Switch KcContact be hardly damaged.To effectively extend magnetic latching relay switch KcService life, and then extend compound open
The service life of pass.
When putting into combination switch, because of reverse-blocking tetrode thyristor KbThe moment of conducting, due to inductance LaElectric current inhibiting effect,
Big dash current will not occur, and due to reverse-blocking tetrode thyristor KbConduction voltage drop very little, and inductance LaThe impedance under work frequency
Very little, node MaAnd node MbThe pressure drop of point-to-point transmission is smaller, is closed magnetic latching relay switch K at this timec, to magnetic latching relay
Switch KcContact damage very little, to effectively extend control transwitch KbService life, and then extend the use of combination switch
Service life.
This programme is in reverse-blocking tetrode thyristor KbIt is on and magnetic latching relay switch KcWhen in closure, if to turn off
Reverse-blocking tetrode thyristor Kb, then in electric current I1Just allow reverse-blocking tetrode thyristor K when zero crossingbIt disconnects, it in this way being capable of effective protection reverse-blocking tetrode thyristor
KbService life.
This programme is only in the reverse-blocking tetrode thyristor K that put into combination switch to firewire CbWhen just use voltage over zero when throw
Enter, as long as all being put into or being cut off using current over-zero in the case of having electric current on combination switch, substantially increases compound
The service life of switch, reliability is higher, and safety is preferable.
In the present solution, working as reverse-blocking tetrode thyristor KbWhen conducting, in magnetic latching relay switch KcIn the case of there are no disconnection,
Magnetic latching relay switch K at this timecIt is also conducting, you can control transwitch KbWith magnetic latching relay switch KcSimultaneously at this time
It is in the conduction state.Due to reverse-blocking tetrode thyristor KbBranch has inductance LaConducting resistance, it is clear that magnetic latching relay switch KcBranch
The impedance on road will be far smaller than reverse-blocking tetrode thyristor KbThe impedance of branch, therefore flow through magnetic latching relay switch KcElectric current be more than
Flow through reverse-blocking tetrode thyristor KbThe electric current of branch.If magnetic latching relay switch KcNot in current zero-crossing point break contact, easily damage
Contact.This programme is from by obtaining inductance LaThe electric current I of branch1Correct time point when zero crossing, then controller is allowed to send out control
Signal disconnects magnetic latching relay switch KcContact, allow magnetic latching relay switch KcCarried out when electric current is smaller be closed or
Disconnection acts, thus not easy burn-out magnetic latching relay switch KcOn contact, effectively extend magnetic latching relay and open
Close KcService life, and then also extend the service life of combination switch, simple in structure, reliability is high.
The accurate operating passing zero control method of combination switch is as follows：
(1-1) puts into combination switch.
(1-1-1) first detects voltage U on firewire C when to put into combination switch to firewire CCNWhen accurate when zero crossing
Between point, as voltage UCNWhen zero crossing, controller is immediately to reverse-blocking tetrode thyristor KbSend out conductivity control signal, reverse-blocking tetrode thyristor KbWith
Be connected.
(1-1-2) is as reverse-blocking tetrode thyristor KbAfter setting time is connected, electric current I is first detected1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to magnetic latching relay switch KcClosure control signal is sent out, magnetic latching relay is opened
Close KcIt is closed immediately.
(1-1-3) and then again detection electric current I1Correct time point when zero crossing, as electric current I1When zero crossing, controller
Immediately to reverse-blocking tetrode thyristor KbSend out shutdown control signal, reverse-blocking tetrode thyristor KbIt turns off, is only opened at this time by magnetic latching relay immediately
Close KcCurrent supply circuit work is kept, combination switch devoting oneself to work to firewire C is so far completed.
(1-2) cuts off combination switch.
(1-2-1) first detects electric current I when the combination switch on firewire C to be cut off1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to reverse-blocking tetrode thyristor KbSend out conductivity control signal, reverse-blocking tetrode thyristor KbIt leads immediately
Logical, delay a period of time makes reverse-blocking tetrode thyristor KbReliable conducting；
(1-2-2) is in reverse-blocking tetrode thyristor KbIn the case of conducting, electric current I is detected again1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to magnetic latching relay switch KcDisconnection control signal is sent out, magnetic latching relay is opened
Close KcIt then turns off.
(1-2-3) and then again detection electric current I1Correct time point when zero crossing, as electric current I1When zero crossing, controller
Immediately to reverse-blocking tetrode thyristor KbSend out shutdown control signal, reverse-blocking tetrode thyristor KbIt turns off immediately；So far combination switch is from firewire C
Upper excision completely.
Preferably, further including the memory being connect with controller.Memory can store the voltage zero-cross of firewire C when
Between point, directly invoked convenient for controller.
Preferably, further including the display being connect with controller.Display is observed convenient for user, simple and easy to use.
Preferably, inductance LaInductance be 30-50 microhenrys.Inductance LaUse inductance for the high-frequency inductor of tens microhenrys, greatly
Improve reverse-blocking tetrode thyristor K greatlybIn the effect of the inhibition dash current of conducting moment, reliability is higher.
The present invention can reach following effect：
The combination switch of the present invention can distinguish correct time point and voltage mistake when accurately detecting AC current zero crossing
Correct time point when zero, and can ensure reverse-blocking tetrode thyristor K respectivelybWith magnetic latching relay switch KcIn current zero-crossing point
Correct time point carry out switching, moreover it is possible to ensure reverse-blocking tetrode thyristor KbCorrect time point in voltage over zero carries out switching,
Switching electric current is small, and when switching will not burn out the contact of switch, simple in structure, and reliability is high, and safety is good, can greatly prolong compound
The service life of switch, easily to carrying out charge and discharge control from the battery pack of electricity consumption power supply module.
Switching electric current is small, and when switching will not burn out switch contact, simple in structure, and reliability is high.
Description of the drawings
Fig. 1 is a kind of schematic diagram of circuit principle connecting structure of the embodiment of the present invention from electricity consumption power supply module.
Fig. 2 is that upper electromagnet from the No.1 bulk charging bindiny mechanism of electricity consumption power supply module of the embodiment of the present invention is pressed on down
A kind of attachment structure schematic diagram when on electromagnet.
Fig. 3 is that upper electromagnet from the No.1 bulk charging bindiny mechanism of electricity consumption power supply module of the embodiment of the present invention is not pressed in
A kind of attachment structure schematic diagram when on lower electromagnet.
Fig. 4 be the embodiment of the present invention from charger and microcontroller at the energization priority control mechanism of electricity consumption power supply module all
A kind of use state attachment structure schematic diagram when not powering on also.
Fig. 5 is that the embodiment of the present invention is in from the energization priority control mechanism of electricity consumption power supply module when powering on, only micro-control
A kind of use state attachment structure schematic diagram when the power input anode of device processed has been powered on.
Fig. 6 is that the embodiment of the present invention is in from the energization priority control mechanism of electricity consumption power supply module when powering on, only micro-control
One kind that the power input anode of device processed powers on when also having been turned on power supply with the power input cathode of microcontroller makes
With state attachment structure schematic diagram.
Fig. 7 is that the embodiment of the present invention is in from the energization priority control mechanism of electricity consumption power supply module when powering on, only micro-control
The power input anode of device processed powers on, the power input cathode of microcontroller also has been turned on the electricity of power supply and charger
Source input anode also has been turned on a kind of use state attachment structure schematic diagram when power supply.
Fig. 8 is that the embodiment of the present invention is in from the energization priority control mechanism of electricity consumption power supply module when powering on, microcontroller
Power input anode power on, that the power input cathode of microcontroller also has been turned on power supply, the power supply of charger is defeated
Enter a kind of use state that proper pole also has been turned on when power supply also has been turned on power supply with the power input cathode of charger to connect
Structural schematic diagram.
Fig. 9 is a kind of use state schematic diagram of circuit principle connecting structure of the present invention.
Figure 10 is that a kind of circuit theory that the present embodiment is connected from each component of electricity consumption power supply module with controller is connect
Structural schematic block diagram.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：Combination switch, it is shown in Figure 9, including No.1 node 701, No. two nodes 702, reverse-blocking tetrode thyristor Kb、
Magnetic latching relay switch Kc, node Ma, inductance La, node Mb, capacitance Ca, diode D1, diode D2, diode D3, two poles
Pipe D4, capacitance C0, photoelectrical coupler OPT, resistance R0, from electricity consumption power supply module 901, Magnetic driving circuit 502, silicon driving circuit 503
With controller 107, photoelectrical coupler OPT includes light emitting diode D5With phototriode Q0.Inductance LaInductance be 30-50 it is micro-
It is prosperous.Reverse-blocking tetrode thyristor KbOne end and magnetic latching relay switch KcOne end connect respectively with No.1 node 701, it is silicon-controlled to open
Close KbThe other end, magnetic latching relay switch KcThe other end, inductance LaOne end, diode D1Positive terminal and diode D3
Negative pole end respectively with node MaConnection, inductance LaThe other end, capacitance Ca one end and capacitance C0One end respectively with node Mb
Connection, the other end of capacitance Ca are connected on No. two nodes 702, diode D2Positive terminal and diode D4Negative pole end all connect
It is connected on capacitance C0The other end on, diode D1Negative pole end and diode D2Negative pole end be all connected to light emitting diode D5's
On positive terminal, diode D3Positive terminal and diode D4Positive terminal be all connected to light emitting diode D5Negative pole end on, it is photosensitive
Triode Q0Emitter ground connection, phototriode Q0Collector respectively with resistance R0One end connected with controller, resistance R0
The other end connect with from electricity consumption power supply module, silicon driving circuit respectively with reverse-blocking tetrode thyristor KbControl terminal and controller connect
Connect, Magnetic driving circuit respectively with magnetic latching relay switch KcControl terminal connected with controller.Further include respectively with controller
The memory 106 and display 504 of connection.
Shown in Fig. 1, Figure 10, from electricity consumption power supply module include battery connection module t22, can by several independently of each other
The battery pack t26 that is connected together in series of single battery；From electricity consumption power supply module further include respectively with single battery number
Equal charger, switching switch and current limliting module；Battery connection module includes that the bulk charging equal with single battery number connects
Connection mechanism；Bulk voltage detection chip t101 is respectively equipped in each bulk charging bindiny mechanism；The power supply output of each charger
Hold one-to-one be connected on a terminals at each switching switch selection end；The one-to-one connection of turning end of each switching switch
On one end of current limliting module, the one-to-one bulk charging connection machine for being connected to battery connection module of the other end of each current limliting module
On structure；Battery connection module connects on the battery pack, and control terminal, each bulk voltage of the battery connection module t22 detect core
The control terminal of piece t101, the control terminal of each current limliting module and each switching switch are connect with controller respectively；And in controller
Control under, when not be battery pack charging when, battery connection module can by each mutually independent single battery in battery pack according to
Secondary be connected in series becomes series-connected cell, and when charging for battery pack, battery connection module will can successively go here and there in battery pack
Join the series-connected cell to link together and becomes mutually independent single battery.
Charger in this example is charger t2, charge t3 and charger t4.Switching switch in this example is switching
Switch t5, switching switch t6 and switching switch t7.Current limliting module in this example is limited flow module t9, current limliting module t10 and limit
Flow module t11.The selection end of each switching switch includes terminals d, terminals e and terminals f.Controller in this example
As microcontroller.
It is shown in Figure 1, if there are three the single battery of the present embodiment battery pack is total, and set these three single batteries difference
For No.1 single battery t19, No. two single battery t20 and No. three single battery t21；The bulk charging of battery connection module connects machine
There are three structure is total, and it is respectively No.1 bulk charging bindiny mechanism t12, No. two bulk chargings connections to set these three bulk charging bindiny mechanisms
Mechanism t13 and No. three bulk charging bindiny mechanism t14；Battery connection module further includes a group power output interface t15, No.1 hilted broadsword pair
Throw switch t17, No. two single-pole double-throw switch (SPDT) t18 and single knife switch t16；It is double that the anode of No.1 single battery is connected to No.1 hilted broadsword
In the turning end of throw switch, the positive terminal of the No.1 contact portion of No.1 single-pole double-throw switch (SPDT) in No.1 bulk charging bindiny mechanism
On end, No. two contact portions of No.1 single-pole double-throw switch (SPDT) are on No. two contacts of No. two single-pole double-throw switch (SPDT)s, No.1 monomer electricity
The cathode in pond is connected in the negative terminals of No.1 bulk charging bindiny mechanism, and the cathode of No.1 single battery is also connected to a group electricity
In the negative terminals of source output interface；The anode of No. two single batteries is connected to the positive terminal of No. two bulk charging bindiny mechanisms
On end, the anode of No. two single batteries is also connected on the positive terminal of group power output interface, No. two single batteries it is negative
Pole is connected in the negative terminals of No. two bulk charging bindiny mechanisms, and the cathode of No. two single batteries is also connected to single knife switch
On one end；The negative pole t 25 of No. three single batteries is connected in the turning end of No. two single-pole double-throw switch (SPDT)s, No. two single-pole double-throw switch (SPDT)s
No.1 contact portion in the negative terminals of No. three bulk charging bindiny mechanisms, the positive t23 of No. three single batteries is connected to
On the positive terminal of No. three bulk charging bindiny mechanisms, the anode of No. three single batteries is also connected to the other end of single knife switch
On；The control terminal point of the control terminal of the No.1 single-pole double-throw switch (SPDT), the control terminal of No. two single-pole double-throw switch (SPDT)s and single knife switch
It is not connect with controller.
No. two contacts of the No.1 single-pole double-throw switch (SPDT) and No. two contacts of No. two single-pole double-throw switch (SPDT)s are normally closed touch
Point, when battery pack charges, No. two contacts of No.1 single-pole double-throw switch (SPDT) and No. two contacts of No. two single-pole double-throw switch (SPDT)s are in
Off-state, when battery pack and do not charge, No. two contacts of No.1 single-pole double-throw switch (SPDT) and No. two of No. two single-pole double-throw switch (SPDT)s are touched
Point is in closed state；The No.1 contact of the No.1 single-pole double-throw switch (SPDT) and the No.1 contact of No. two single-pole double-throw switch (SPDT)s are equal
For normally opened contact, when battery pack charges, the No.1 of the No.1 contact of No.1 single-pole double-throw switch (SPDT) and No. two single-pole double-throw switch (SPDT)s is touched
Point is in closed state, the No.1 contact of No.1 single-pole double-throw switch (SPDT) and No. two single-pole double-throw switch (SPDT)s when battery pack and do not charge
No.1 contact be in off-state；The single knife switch is off when battery pack charges, and is not filled in battery pack
Closed state is in when electric.
Shown in Fig. 2, Fig. 3, each bulk charging bindiny mechanism includes sliding chamber t29, the lower horizontal block t30 of insulation, insulate and slide
Horizontal block t36, sliding bar t32 and activity horizontal block t31 on motion block t38, insulation, the positive terminal of bulk charging bindiny mechanism includes upper
The negative terminals of positive terminal end t28 and lower positive terminal end t27, bulk charging bindiny mechanism include upper negative terminals
Head t39 and lower negative terminal end t40；Insulated slide block is slidably arranged in sliding intracavitary, and the lower horizontal block that insulate is fixed at insulation
Cunning intracavitary below sliding shoe, horizontal block is fixed at the cunning intracavitary above insulated slide block, activity horizontal block activity cloth in insulation
The cunning intracavitary above the upper horizontal block of insulation is set, upper positive terminal end and upper negative terminal end are arranged at insulated slide block
On lower surface, lower positive terminal end and lower negative terminal end are arranged on the upper surface of the lower horizontal block of insulation, in insulation
Horizontal block is equipped with vertical through-hole t34, and sliding bar is slidably arranged in vertical through-hole, and sliding bar upper end is fixedly connected on activity horizontal block
On, sliding bar lower end is fixedly connected in the upper horizontal block of insulation, is set on the upper sliding bar between horizontal block and insulated slide block of insulation
Spring t37 is pulled open, the both ends for pulling open spring are press-connected on the lower surface of the upper horizontal block of insulation and insulated slide block respectively
On upper surface；It is fixed with lower electromagnet t35 on the upper surface of the upper horizontal block of insulation, upper electromagnet is equipped in activity horizontal block
T33, and the electromagnetic force generated when the energization of upper electromagnet attracts each other with the lower electromagnet electromagnetic force that electricity generates when logical, and power on
The electromagnetic force that magnet generates when being powered can push insulated slide block after attracting each other with the lower electromagnet electromagnetic force that electricity generates when logical
It moves down, and upper positive terminal end can be compressed and be conductively connected on lower positive terminal end and can be by upper negative terminals
Head is compressed and is conductively connected on lower negative terminal end.
The anode of each single battery is one-to-one to be connected electrically on lower positive terminal end, the cathode one of each single battery
It is connected electrically on lower negative terminal end to one, positive terminal in the one-to-one electrical connection of anode of the other end of each current limliting module
On end, in the one-to-one electrical connection of cathode of the other end of each current limliting module on negative terminal end.
Shown in Fig. 4-Fig. 8, the power input of each charger and the power input of controller are conductively connected
On an energization priority control mechanism t75, and energization priority control mechanism is first powered to controller when powering on, then again
It is powered to charger；In lower electricity, energization priority control mechanism first allows charger to power off, and then allows controller to power off again.
Shown in Fig. 4-Fig. 8, energization priority control mechanism include the insulation tube t62 of right end sealing, insulation bearing piece t64,
Insulated slide bar t63 and handle t61, insulation bearing piece are fixed on t66 in insulation tube, and slide opening t65 is transversely provided in insulation bearing piece,
Insulated slide bar is slidably arranged in sliding block, and handle is fixedly connected on the left end of insulated slide bar；Under the inner tubal wall of insulation tube
No.1 positive terminal end t71, No.1 negative terminal end t72, No. two anodes are from left to right fixed on bottom surface successively to connect
Line end t73 and No. two negative terminal end t74, and the height of No.1 positive terminal end is higher than No.1 negative terminal end
Height it is high, the height of No.1 negative terminal end is high higher than the height of No. two positive terminal ends, No. two positive terminal ends
Height height it is high higher than the height of No. two negative terminal ends；From a left side on the lower surface of the insulated slide bar of insulation bearing piece right
To the right side be fixed with successively No. three positive terminal end t67, No. three negative terminal end t68, No. four positive terminal end t69 and
No. four negative terminal end t70, and when insulated slide bar is moved to setting position, No. three positive terminal ends, which can compress, leads
It is connected electrically on No.1 positive terminal end, No. three negative terminal ends, which can compress, to be conductively connected in No.1 negative terminal end
On, No. four positive terminal ends, which can compress, to be conductively connected on No. two positive terminal ends, and No. four negative terminal ends can compress
It is conductively connected on No. two negative terminal ends；The power input anode of controller is connected electrically in No.1 positive terminal end
Lower end, the power input cathode of controller are connected electrically in the lower end of No.1 negative terminal end, the power input of charger
Anode is connected electrically in the lower end of No. two positive terminal ends, and the power input cathode of charger is connected electrically in No. two negative terminals
The lower end of end；No. three positive terminal ends and No. four positive terminal ends are both electrically connected with the power supply in energization priority control mechanism
On the anode of input terminal；No. three negative terminal ends and No. four negative terminal ends are both electrically connected in energization priority control mechanism
On the cathode of power input.
When the present embodiment is in use, No.1 node is connected on the firewire C of power supply, No. two nodes is connected to power supply
On zero curve N.
In the combination switch of the present embodiment, inductance LaUsing high-frequency inductor, inductance LaInductance be tens microhenrys.When can
Control transwitch KbOr magnetic latching relay switch KcMoment is connected, the impedance of capacitance Ca is about O, and due to inductance LaPresence, electricity
Feel LaIn conducting moment, frequency changes very greatly, inductance LaImpedance it is also very big, it is suppressed that the dash current of moment is connected in power supply；
When circuit works normally, since supply frequency is 50Hz power frequencies, then inductance LaImpedance very little.
In inductance LaIn, inductance LaVoltage ULaAdvanced inductance LaElectric current I190 degree, i.e. inductance LaElectric current I1Fall behind electricity
Feel LaVoltage ULa90 degree.
In capacitance C0In, capacitance C0Electric current I2Advanced capacitance C0Voltage UC090 degree, i.e. capacitance C0Voltage UC0Fall behind electricity
Hold C0Electric current I290 degree.
Electric current I1Pass through inductance La, capacitance Ca form closed circuit, then have inductance LaOn voltage ULaAdvanced inductance LaOn
Electric current I190 degree.
As inductance LaVoltage ULaIn node M sometimeaPoint for just, node MbWhen point is negative, then electric current I2From node
MaPoint passes through diode D1, light emitting diode D5, diode D4With capacitance C0Form branch.
Ignore diode D1, light emitting diode D5With diode D4Pressure drop, it is clear that have i.e. ULa=UC0, i.e. inductance LaElectricity
Press ULaEqual to capacitance C0Voltage UC0.Obviously there is inductance LaOn voltage ULaLag capacitance C0On electric current I290 degree, to have
Capacitance C0On electric current I2With inductance LaOn electric current I1It is reversed each other, i.e. electric current I2With electric current I1It is reversed each other.UCNIt is on firewire C
Voltage.
As electric current I2It is positive and be more than light emitting diode D5When luminous minimum current, the output signal U of photoelectrical couplerI0
Become low level from high level, reasonably selects capacitance C0, make capacitance C0On electric current I2Positive zero crossing and hair can be rapidly achieved
Optical diode D5Luminous minimum current.
As electric current I2After positive zero crossing, the output signal U of photoelectrical couplerI0Become low level from high level, due to
Electric current I2With electric current I1Reversely, then there is the output signal U when photoelectrical couplerI0When becoming high level from low level, electric current I1Just
In positive zero crossing.Therefore the output signal U of photoelectrical couplerI0When becoming high level from low level, that is, obtain electric current I1
Zero crossing electric current.When obtaining electric current I1Zero crossing electric current when, controller can give magnetic latching relay switch K immediatelycHair
Go out signal is opened or closed.Allow magnetic latching relay switch K if necessarycIt disconnects, then controller is just opened to magnetic latching relay
Close KcSend out disconnection control signal, magnetic latching relay switch KcIt then turns off；Allow magnetic latching relay switch K if necessarycIt closes
It closes, then controller just gives magnetic latching relay switch KcSend out closure control signal, magnetic latching relay switch KcIt is closed immediately.
The present embodiment opens magnetic latching relay further according to the correct time point from by obtaining correct time point when current zero-crossing point
Close KcThe control signal that is opened or closed is sent out to make magnetic latching relay switch KcContact be opened or closed, then flow through magnetic
Guard relay switch KcElectric current it is small, magnetic latching relay switch K is opened or closed in low currentcSo that magnetic keeps relay
Device switch KcContact be hardly damaged.To effectively extend magnetic latching relay switch KcService life, and then extend compound
The service life of switch.
When putting into combination switch, because of reverse-blocking tetrode thyristor KbThe moment of conducting, due to inductance LaElectric current inhibiting effect,
Big dash current will not occur, and due to reverse-blocking tetrode thyristor KbConduction voltage drop very little, and inductance LaThe impedance under work frequency
Very little, node MaAnd node MbThe pressure drop of point-to-point transmission is smaller, is closed magnetic latching relay switch K at this timec, to magnetic latching relay
Switch KcContact damage very little, to effectively extend control transwitch KbService life, and then extend the use of combination switch
Service life.
The present embodiment is in reverse-blocking tetrode thyristor KbIt is on and magnetic latching relay switch KcWhen in closure, if to close
Disconnected reverse-blocking tetrode thyristor Kb, then in electric current I1Just allow reverse-blocking tetrode thyristor K when zero crossingbIt disconnects, it in this way can effective protection be silicon-controlled opens
Close KbService life.
The present embodiment is only in the reverse-blocking tetrode thyristor K that put into combination switch to firewire CbWhen just use voltage over zero when
Input substantially increases multiple as long as all being put into or being cut off using current over-zero in the case of having electric current on combination switch
The service life of combination switch, reliability is higher, and safety is preferable.
In the present embodiment, as reverse-blocking tetrode thyristor KbWhen conducting, in magnetic latching relay switch KcThere are no disconnect
Under, magnetic latching relay switch K at this timecIt is also conducting, you can control transwitch KbWith magnetic latching relay switch KcIt is same at this time
When it is in the conduction state.Due to reverse-blocking tetrode thyristor KbBranch has inductance LaConducting resistance, it is clear that magnetic latching relay switch Kc
The impedance of branch will be far smaller than reverse-blocking tetrode thyristor KbThe impedance of branch, therefore flow through magnetic latching relay switch KcElectric current it is big
In flowing through reverse-blocking tetrode thyristor KbThe electric current of branch.If magnetic latching relay switch KcNot in current zero-crossing point break contact, easily damage
Bad contact.The present embodiment is from by obtaining inductance LaThe electric current I of branch1Correct time point when zero crossing, then controller is allowed to send out
Signal is controlled to disconnect magnetic latching relay switch KcContact, allow magnetic latching relay switch KcIt is closed when electric current is smaller
It closes or disconnection action, thus not easy burn-out magnetic latching relay switch KcOn contact, effectively extend magnetic keep relay
Device switch KcService life, and then also extend the service life of combination switch, simple in structure, reliability is high.
The operation/cutting method of the present embodiment combination switch is as follows：
(1-1) puts into combination switch.
(1-1-1) first detects voltage U on firewire C when to put into combination switch to firewire CCNWhen accurate when zero crossing
Between point, as voltage UCNWhen zero crossing, controller is immediately to reverse-blocking tetrode thyristor KbSend out conductivity control signal, reverse-blocking tetrode thyristor KbWith
Be connected.
(1-1-2) is as reverse-blocking tetrode thyristor KbAfter setting time is connected, electric current I is first detected1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to magnetic latching relay switch KcClosure control signal is sent out, magnetic latching relay is opened
Close KcIt is closed immediately.
(1-1-3) and then again detection electric current I1Correct time point when zero crossing, as electric current I1When zero crossing, controller
Immediately to reverse-blocking tetrode thyristor KbSend out shutdown control signal, reverse-blocking tetrode thyristor KbIt turns off, is only opened at this time by magnetic latching relay immediately
Close KcCurrent supply circuit work is kept, combination switch devoting oneself to work to firewire C is so far completed.
(1-2) cuts off combination switch.
(1-2-1) first detects electric current I when the combination switch on firewire C to be cut off1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to reverse-blocking tetrode thyristor KbSend out conductivity control signal, reverse-blocking tetrode thyristor KbIt leads immediately
Logical, delay a period of time makes reverse-blocking tetrode thyristor KbReliable conducting；
(1-2-2) is in reverse-blocking tetrode thyristor KbIn the case of conducting, electric current I is detected again1Correct time point when zero crossing,
As electric current I1When zero crossing, controller is immediately to magnetic latching relay switch KcDisconnection control signal is sent out, magnetic latching relay is opened
Close KcIt then turns off.
(1-2-3) and then again detection electric current I1Correct time point when zero crossing, as electric current I1When zero crossing, controller
Immediately to reverse-blocking tetrode thyristor KbSend out shutdown control signal, reverse-blocking tetrode thyristor KbIt turns off immediately；So far combination switch is from firewire C
Upper excision completely.
The energization priority control mechanism of the present embodiment is first powered by controller, and controller just allows battery connection module after being powered
The series-connected cell for being sequentially connected in series together in battery pack is become into mutually independent single battery, is then electrified to priority control
Mechanism just allows charger to be powered, and can be fully ensured that in this way when charger is powered, be mutual indepedent between each single battery
, charging would not be impacted between each single battery.
For the present embodiment in charging, voltage checking chip can carry out voltage detecting to corresponding single battery.When some list
Body battery can reduce charging current when being full of by current limliting module, can pass through current limliting when some single battery is not full of far also
Module increases charging current.To make voltage contained by single battery identical as possible.When each single battery is full of and each single
The voltage of body battery can disconnect charge power supply when identical.Or when each single battery and underfill and each single battery
Voltage it is identical when can also disconnect charge power supply.It, will not between the single battery being connected in series with after allowing single battery to be connected in this way
There are electric current flowing, the reliability of battery high.The charging current or charging voltage of each charger can differ between each other.Pass through
Switching switch can select different chargers to some single battery.The cooperation of switching switch and current limliting module can be preferably to need
The single battery to be charged provides charging current and charging voltage in real time, consequently facilitating to the charging progress of each single battery into
Row individually control, also allows for individually controlling the charging voltage of each single battery.It is examined by temperature in charging process
The temperature of single battery can be detected by surveying mechanism, and can carry out overheat protector control to single battery in charging.Pass through
Dual power supply mechanism makes the present embodiment have the function of dual power supply, substantially increases dependable with function.
The present embodiment can make the damage of single single battery not interfere with other single battery chargings, and not be battery pack
Each mutually independent single battery in battery pack can be sequentially connected in series when charging and become series-connected cell together, for electricity
The series-connected cell for being sequentially connected in series together in battery pack can be become mutually independent single battery when the charging of pond group, to every
The charging process of a single battery can also carry out voltage detecting, and can individually be controlled to the charging progress of each single battery
System, can also individually control the charging voltage of each single battery.And excess temperature guarantor can be carried out to single battery in charging
Shield control.It is powered using dual power supply mechanism and realizes the uninterrupted power supply of electrical equipment.It is safe, good reliability, and equipped with logical
Electric priority control mechanism, which powers on battery pack, first allows the single battery being connected in series with to become independent single battery in charging process
After recharge, charging reliability is high.
The battery connection module of the present embodiment when battery pack can be allowed to charge well can will in battery pack it is each independently of each other
Single battery be sequentially connected in series and become series-connected cell together, can will be sequentially connected in series in battery pack when charging for battery pack
The series-connected cell to link together becomes mutually independent single battery, and reliability is high.
The present embodiment, which can improve battery pack in use, can remain each mutually independent list in battery pack
Body battery is sequentially connected in series becomes series-connected cell together, easily automatically controlled to carrying out charge and discharge from the battery pack of electricity consumption power supply module
System, reliability are high.
Embodiments of the present invention are described above in conjunction with attached drawing, however, the implementation is not limited to the above embodiments, this field
Those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (3)
1. combination switch, which is characterized in that including No.1 node (701), No. two nodes (702), reverse-blocking tetrode thyristor Kb, magnetic keep
Relay switch Kc, node Ma, inductance La, node Mb, capacitance Ca, diode D1, diode D2, diode D3, diode D4, electricity
Hold C0, photoelectrical coupler OPT, resistance R0, from electricity consumption power supply module (901), Magnetic driving circuit (502), silicon driving circuit (503)
With controller (107), the photoelectrical coupler OPT includes light emitting diode D5With phototriode Q0；The reverse-blocking tetrode thyristor Kb
One end and magnetic latching relay switch KcOne end connect respectively with No.1 node (701), the reverse-blocking tetrode thyristor KbIt is another
End, magnetic latching relay switch KcThe other end, inductance LaOne end, diode D1Positive terminal and diode D3Negative pole end
Respectively with node MaConnection, the inductance LaThe other end, capacitance Ca one end and capacitance C0One end respectively with node MbEven
It connects, the other end of the capacitance Ca is connected on No. two nodes (702), the diode D2Positive terminal and diode D4It is negative
Extremely all it is connected to capacitance C0The other end on, the diode D1Negative pole end and diode D2Negative pole end be all connected to hair
Optical diode D5Positive terminal on, the diode D3Positive terminal and diode D4Positive terminal be all connected to light emitting diode
D5Negative pole end on, the phototriode Q0Emitter ground connection, the phototriode Q0Collector respectively with resistance R0
One end connected with controller, the resistance R0The other end connect with from electricity consumption power supply module, silicon driving circuit difference
With reverse-blocking tetrode thyristor KbControl terminal connected with controller, the Magnetic driving circuit respectively with magnetic latching relay switch KcControl
End processed is connected with controller；
From electricity consumption power supply module include battery connection module, can be sequentially connected in series by several mutually independent single batteries and
At battery pack；Further include equal with single battery number respectively charger, switching switch and current limliting from electricity consumption power supply module
Module；Battery connection module includes the bulk charging bindiny mechanism equal with single battery number；In each bulk charging bindiny mechanism
On be respectively equipped with bulk voltage detection chip；The power output end of each charger is one-to-one to be connected to each switching switch selection end
A terminals on；The turning end of each switching switch is one-to-one to be connected on one end of current limliting module, each current limliting module
The one-to-one bulk charging bindiny mechanism for being connected to battery connection module of the other end on；Battery connection module is connected to battery pack
On, the control terminal of the battery connection module, each bulk voltage detection chip, the control terminal of each current limliting module and each switching
The control terminal of switch is connect with controller respectively；And under the control of the controller, when not being battery pack charging, battery connects mould
Each mutually independent single battery in battery pack can be sequentially connected in series by block becomes series-connected cell together, when for battery pack
When charging, the series-connected cell for being sequentially connected in series together in battery pack can be become mutually independent monomer by battery connection module
Battery；
Each power input of charger and the power input of controller are conductively connected in an energization priority control machine
On structure, and energization priority control mechanism is first powered to controller when powering on, and is then powered again to charger；It is logical in lower electricity
Electric priority control mechanism first allows charger to power off, and then allows controller to power off again.
2. combination switch according to claim 1, which is characterized in that further include the memory (106) being connect with controller.
3. combination switch according to claim 1, which is characterized in that the inductance LaInductance be 30-50 microhenrys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710029826.4A CN106653434B (en) | 2017-01-12 | 2017-01-12 | Combination switch and its accurate operating passing zero control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710029826.4A CN106653434B (en) | 2017-01-12 | 2017-01-12 | Combination switch and its accurate operating passing zero control method |
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| Publication Number | Publication Date |
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| CN106653434A CN106653434A (en) | 2017-05-10 |
| CN106653434B true CN106653434B (en) | 2018-09-11 |
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| CN201710029826.4A Expired - Fee Related CN106653434B (en) | 2017-01-12 | 2017-01-12 | Combination switch and its accurate operating passing zero control method |
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| CN107331558B (en) * | 2017-08-15 | 2019-09-10 | 广州金升阳科技有限公司 | A kind of alternating-current switch device |
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| JP2002051570A (en) * | 2000-08-03 | 2002-02-15 | Toshiba Corp | Noise reduction device of converter |
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| CN205724914U (en) * | 2016-04-22 | 2016-11-23 | 重庆瑞升康博电气有限公司 | Three-phase intelligent combination switch |
| CN205791556U (en) * | 2016-07-06 | 2016-12-07 | 广州开能电气实业有限公司 | Composite reactor switching module |
| CN205863934U (en) * | 2016-06-24 | 2017-01-04 | 广州开能电气实业有限公司 | Multiplexed-capacitor group switching module |
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2017
- 2017-01-12 CN CN201710029826.4A patent/CN106653434B/en not_active Expired - Fee Related
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| JP2002051570A (en) * | 2000-08-03 | 2002-02-15 | Toshiba Corp | Noise reduction device of converter |
| CN202949231U (en) * | 2012-11-27 | 2013-05-22 | 常州市宏大电气有限公司 | Intelligent zero-crossing switching silicon controlled combination switch |
| CN204905873U (en) * | 2015-07-31 | 2015-12-23 | 武汉安科新能电力科技有限公司 | Intelligent compound switch |
| CN105656062A (en) * | 2016-04-01 | 2016-06-08 | 江苏盐开电气有限公司 | Power distribution network triphase load automatic adjusting device and control method thereof |
| CN205724914U (en) * | 2016-04-22 | 2016-11-23 | 重庆瑞升康博电气有限公司 | Three-phase intelligent combination switch |
| CN205863934U (en) * | 2016-06-24 | 2017-01-04 | 广州开能电气实业有限公司 | Multiplexed-capacitor group switching module |
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