CN106646215B - Combination switch and its own switching fault judgment method - Google Patents
Combination switch and its own switching fault judgment method Download PDFInfo
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- CN106646215B CN106646215B CN201710029781.0A CN201710029781A CN106646215B CN 106646215 B CN106646215 B CN 106646215B CN 201710029781 A CN201710029781 A CN 201710029781A CN 106646215 B CN106646215 B CN 106646215B
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- blocking tetrode
- tetrode thyristor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses combination switch and its own switching fault judgment methods, are related to switching technique field, when which can detect itself switching failure and accurately detect alternating current voltage zero crossing and can be carried out switching.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 and one end of inductance La are connect with node M a respectively, one end of the other end of inductance La and No. six switches is connect with node M b respectively, the other end of magnetic latching relay switch Kc, the other end of No.1 switch and the other end of No. two switches are connect with node M c respectively, one end of capacitor C2, the other end of No. four switches, the positive terminal of diode D1 and the negative pole end of diode D3 are connect with node M d respectively, 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 own switching fault judgment method.
Background technique
The existing switch being connected in alternating current circuit generally cannot all detect the switching failure of itself, occur when switching itself
When the switching failure of closing or opening, existing switch cannot all be detected closed in itself or the failure of disconnection, lead to user
It is not easy to know whether switch the switching failure of closing or opening occurs, therefore designs and a kind of can detect opening for itself switching failure
Pass is very necessary.
Summary of the invention
The present invention be in order to solve existing switch and cannot detect the deficiency of itself switching failure, provide it is a kind of can be intelligently automatic
Detect itself switching failure, structure is simple, and intelligence degree is high, securely and reliably, easily to the battery pack from electricity consumption power supply module into
The combination switch of row charge and discharge control and its own switching fault judgment method.
To achieve the goals above, the invention adopts the following technical scheme:
Combination switch, including No.1 node, No. two nodes, node Msa, node Mb, inductance La, capacitor Ca, capacitor C2, two poles
Pipe D1, diode D2, diode D3, diode D4, photoelectrical coupler OPT, resistance R0, resistance R1, resistance R2, switching switch Ka, magnetic
Driving circuit, silicon driving circuit from electricity consumption power supply module, ground terminal SGND and contain the controller of pulse counter；It is described to cut
Change switch KaIncluding reverse-blocking tetrode thyristor KbWith magnetic latching relay switch Kc, the photoelectrical coupler OPT includes light emitting diode D5
With phototriode Q0；The reverse-blocking tetrode thyristor KbOne end and magnetic latching relay switch KcOne end respectively with No.1 node
Connection, the reverse-blocking tetrode thyristor KbThe other end, resistance R1One end and inductance LaOne end respectively with node MaConnection, it is described
Inductance LaThe other end, magnetic latching relay switch KcThe other end, resistance R2One end and capacitor CaOne end respectively with node
MbConnection, the capacitor CaThe other end be connected on No. two nodes, resistance R1The other end and capacitor C2One end connection, institute
State diode D1Positive terminal and diode D3Negative pole end be connected to capacitor C2The other end on, the diode D2's
Positive terminal and diode D4Negative pole end be connected to resistance R2The other end on, the diode D1Negative pole end and two poles
Pipe D2Negative pole end be connected to light emitting diode D5Positive terminal on, the diode D3Positive terminal and diode D4's
Positive terminal is connected to light emitting diode D5Negative pole end on, the phototriode Q0Collector terminal respectively with resistance R0
One end connected with controller, the phototriode Q0Emitter connect with signal ground end SGND, it is described from electricity consumption supply
Electric module respectively with resistance R0The other end, Magnetic driving circuit, silicon driving circuit connected with controller, the silicon driving circuit point
Not with reverse-blocking tetrode thyristor KbControl terminal connected with controller, the Magnetic driving circuit respectively with magnetic latching relay switch Kc's
Control terminal is connected with controller；
Include battery connection module, company can 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 charger equal with single battery number respectively, 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；On one-to-one one end for being connected to current limliting module of turning end of each switching switch, 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
Mutually independent single battery each 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；
The power input of each charger and the power input of controller are conductively connected the successively control that is powered at one
In mechanism processed, and the successive control mechanism that is powered when powering on first is powered to controller, then gives charger to be powered again；In lower electricity
The successive control mechanism of Shi Tong electricity first allows charger to power off, and then allows controller to power off again.
The successive control mechanism of the energization 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 successive 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, thus easily automatically controlled to charge and discharge is carried out from the battery pack of electricity consumption power supply module
System.
The combination switch of this programme when in use, No.1 node is connected on the firewire C of AC power source, No. two nodes
It is connected on the zero curve N of AC power source.
Figure 10 is a kind of waveform diagram of the invention.(a) reverse-blocking tetrode thyristor K is flowed throughbCurrent waveform schematic diagram, (a)
Flow through reverse-blocking tetrode thyristor KbOperation detecting circuit on the trigger waveform schematic diagram that generates.
The combination switch fault self-checking principle of this programme is as follows:
When needing switching combination switch, controller is to reverse-blocking tetrode thyristor KbConductivity control signal is issued, silicon-controlled open is made
Close KbConducting.Electric current is through reverse-blocking tetrode thyristor Kb, inductance LaWith capacitor CaClosed circuit is formed, inductance L is connected in parallel onaThe capacitor at both ends
C2, diode D1, diode D2, diode D3, diode D4, photoelectrical coupler OPT, resistance R1, resistance R0, resistance R2, from electricity consumption
Power supply module and ground terminal SGND together form reverse-blocking tetrode thyristor KbOperation detecting circuit.Reverse-blocking tetrode thyristor is flowed through in electric current
KbWhen reverse-blocking tetrode thyristor KbOperation detecting circuit can generate start pulse signal, keep after a certain period of time, controller is protected to magnetic
Hold relay switch KcClosure control signal is issued, magnetic latching relay switch K is madecClosure.Magnetic latching relay switch KcClosure
Afterwards by reverse-blocking tetrode thyristor KbWith inductance LaThe series arm of composition is short-circuit, at this time reverse-blocking tetrode thyristor KbOperation detecting circuit will not
Trigger pulse can be generated.Then, controller is to reverse-blocking tetrode thyristor KbIt issues and disconnects control signal, make reverse-blocking tetrode thyristor KbIt disconnects, by
Magnetic latching relay switch KcKeep current supply circuit work.
When needing to cut off combination switch, controller is to reverse-blocking tetrode thyristor KbConductivity control signal is issued, silicon-controlled open is made
Close KbConducting is kept after a certain period of time, and controller is to magnetic latching relay switch KcIt issues and disconnects control signal, magnetic keeps relay
Device switch KcIt then turns off, at this point, silicon-controlled operation detecting circuit will have trigger pulse appearance.Finally, controller is to silicon-controlled
Switch KbIt issues again and disconnects control signal, reverse-blocking tetrode thyristor KbIt then turns off.So far combination switch has just been cut off completely.
The combination switch of this programme has can be carried out self fault detection during switch motion, and without compound
In addition setting detects the instrument of failure in switch, to keep the structure of combination switch simpler, small in size, structure is reliable, at
This is cheap, reduces switching unsuccessful security risk when combination switch uses.
A kind of itself switching fault judgment method suitable for combination switch,
Itself switching failure of combination switch includes reverse-blocking tetrode thyristor KbCan not conducting failure, magnetic latching relay switch
KcCan not be closed failure, magnetic latching relay switch KcCan not disconnect failure and reverse-blocking tetrode thyristor KbCan not turn off failure.
Therefore, itself switching fault judgment method of combination switch includes:
(2-1) judges reverse-blocking tetrode thyristor KbFor can not the method for conducting failure be:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbIt is in an off state, and magnetic latching relay switch KcAlso locate
Under the premise of off-state,
(2-1-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, controller waits reverse-blocking tetrode thyristor Kb
The start pulse signal that returns of operation detecting circuit, and trigger pulse counting is carried out with the pulse counter of controller, when prolonging
When setting time after, if the trigger pulse number that receives of controller is greater than setting number, i.e., it is believed that the reverse-blocking tetrode thyristor
KbEnergy normally, if the trigger pulse number that controller receives is less than setting number,
(2-1-2) is again from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, and pulse counter is reset, then
After secondary delay setting time, if the trigger pulse number that receives of controller is still less than setting number, that is, it can determine whether that this is controllable
Transwitch KbFor can not conducting failure.
(2-2) judges magnetic latching relay switch KcMethod for that can not be closed failure is:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbIt has been on shape
State and magnetic latching relay switch KcUnder the premise of being in an off state,
(2-2-1) is first from controller to magnetic latching relay switch KcClosure control signal is issued, and by pulse counter
It resets, after the setting time that is delayed, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than setting number when,
(2-2-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and by pulse counter
It resets, then is delayed after setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than also set number
When,
(2-2-3) is again from controller to magnetic latching relay switch KcClosure control signal is issued, and by step-by-step counting
Device is reset, and is delayed after setting time again, at this time if controller receives reverse-blocking tetrode thyristor KbTrigger pulse count it is still big
When setting number, that is, it can determine whether magnetic latching relay switch KcFor failure can not be closed.
(2-3) judges magnetic latching relay switch KcMethod for that can not disconnect failure is:
When cutting off combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbIt has been in and has disconnected shape
State and magnetic latching relay switch KcUnder the premise of being in closed state,
(2-3-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued by reverse-blocking tetrode thyristor KbConducting, and prolong
When setting time allow reverse-blocking tetrode thyristor KbAfter reliable conducting, and from controller to magnetic latching relay switch KcIt issues and disconnects control
Signal, and pulse counter is reset, after waiting setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse
When number is less than setting number；
(2-3-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and by pulse counter
It resets, after again waiting for setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number still less than setting
When number, that is, it can determine whether magnetic latching relay switch KcFor failure can not be disconnected.
(2-4) judges reverse-blocking tetrode thyristor KbMethod for that can not turn off failure is:
When cutting off combination switch, it is assumed that magnetic latching relay switch KcIt can normally disconnect, and magnetic latching relay switch Kc
It has been in an off state and reverse-blocking tetrode thyristor KbUnder the premise of also on state,
(2-4-1) is first from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, is prolonged
When setting time after, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than setting number when；
(2-4-2) is again from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, then
After secondary delay setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be still greater than setting number when, i.e.,
It can determine whether reverse-blocking tetrode thyristor KbFor failure can not be turned off.
The combination switch of this programme can be carried out the intellectualized detection of combination switch itself switching failure, user can be allowed to know in time
Whether road combination switch there is failure, and convenient for replacement in time, structure is simple, high reliablity, and safety is good.
Preferably, further including memory connected to the controller.Memory can store the voltage over zero of firewire C
Time point calls directly convenient for controller.
Preferably, further including display connected to the controller.Display is simple and easy to use convenient for user's observation.
Preferably, inductance LaInductance be 70-75 microhenry.Inductance LaUse inductance for the high-frequency inductor of tens microhenrys, greatly
Reverse-blocking tetrode thyristor K is improved greatlybIn the effect of the inhibition dash current of conducting moment, reliability is higher.
Preferably, further including alarm connected to the controller.It is controlled after the failure of combination switch itself switching
Device issues alarm command to alarm, and alarm issues alarm sound immediately, replaces combination switch in time convenient for user.
The present invention can reach following effect:
Combination switch energy autonomous detection itself switching failure of the invention, intelligence degree is high, can detect automatically certainly
Body switching failure can let the user know that in time whether combination switch failure occurs, and convenient for replacement in time, structure is simple, reliably
Property it is high, safety is good, easily carries out charge and discharge control to from the battery pack of electricity consumption power supply module.
Detailed description of the invention
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 is that charger and microcontroller be all at the successive control mechanism of energization of the embodiment of the present invention from electricity consumption power supply module
A kind of use state attachment structure schematic diagram when not powering on also.
Fig. 5 is that the successive control mechanism of energization of the embodiment of the present invention from electricity consumption power supply module is in 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 successive control mechanism of energization of the embodiment of the present invention from electricity consumption power supply module is in 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 successive control mechanism of energization of the embodiment of the present invention from electricity consumption power supply module is in 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 successive control mechanism of energization of the embodiment of the present invention from electricity consumption power supply module is in 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 invention.
Figure 10 is a kind of waveform diagram of the invention.
Figure 11 is that the present embodiment is connect from a kind of circuit theory that each component of electricity consumption power supply module is connected with controller
Structural schematic block diagram.
Specific embodiment
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: shown in Figure 9, combination switch, including No.1 node 701, No. two nodes 702, node Ma, node Mb、
Inductance La, capacitor Ca, capacitor C2, diode D1, diode D2, diode D3, diode D4, photoelectrical coupler OPT, resistance R0, electricity
Hinder R1, resistance R2, switching switch Ka, Magnetic driving circuit 502, silicon driving circuit 503, from electricity consumption power supply module 901, ground terminal
SGND and controller 107 containing pulse counter 805；The switching switch KaIncluding reverse-blocking tetrode thyristor KbRelay is kept with magnetic
Device switch Kc, the photoelectrical coupler OPT includes light emitting diode D5With phototriode Q0；The reverse-blocking tetrode thyristor KbOne
End and magnetic latching relay switch KcOne end connect respectively with No.1 node, the reverse-blocking tetrode thyristor KbThe other end, resistance R1
One end and inductance LaOne end respectively with node MaConnection, the inductance LaThe other end, magnetic latching relay switch KcIt is another
One end, resistance R2One end and capacitor CaOne end respectively with node MbConnection, the capacitor CaThe other end be connected to No. two sections
On point, resistance R1The other end and capacitor C2One end connection, the diode D1Positive terminal and diode D3Negative pole end point
It is not connected to capacitor C2The other end on, the diode D2Positive terminal and diode D4Negative pole end be connected to resistance
R2The other end on, the diode D1Negative pole end and diode D2Negative pole end be connected to light emitting diode D5Just
On extreme, the diode D3Positive terminal and diode D4Positive terminal be connected to light emitting diode D5Negative pole end on,
The phototriode Q0Collector terminal respectively with resistance R0One end connected with controller, the phototriode Q0Hair
Emitter-base bandgap grading is connect with signal ground end SGND, it is described from electricity consumption power supply module respectively with resistance R0The other end, Magnetic driving circuit, silicon
Driving circuit is connected with controller, the silicon driving circuit respectively with reverse-blocking tetrode thyristor KbControl terminal connected with controller, institute
State Magnetic driving circuit respectively with magnetic latching relay switch KcControl terminal connected with controller.Inductance LaInductance be 70-75 it is micro-
It is prosperous.
It further include memory 106 connected to the controller.It further include display 504 connected to the controller.Further include with
The alarm 507 of controller connection.
Referring to shown in Fig. 1, Figure 11, from electricity consumption power supply module include battery connection module t22, can be mutually indepedent by several
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 of each charger exports
It holds on an one-to-one terminals for being connected to 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 detects 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 mutually independent single battery each in battery pack according to
Secondary be connected in series becomes series-connected cell, and when for battery pack charging, 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 setting these three bulk charging bindiny mechanisms is respectively No.1 bulk charging bindiny mechanism t12, No. two bulk chargings connections
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 No.1 contact of No.1 single-pole double-throw switch (SPDT) is connected to the positive terminal of No.1 bulk charging bindiny mechanism
On end, No. two contacts of No.1 single-pole double-throw switch (SPDT) are connected 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 be connected 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 touching
Point, in battery pack charging, 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, No. two touchings of No. two contacts 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
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, the No.1 touching of the No.1 contact of No.1 single-pole double-throw switch (SPDT) and No. two single-pole double-throw switch (SPDT)s in battery pack charging
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 in an off state when battery pack charges, and is not filled in battery pack
Closed state is in when electric.
Referring to fig. 2, shown in Fig. 3, each bulk charging bindiny mechanism includes sliding chamber t29, the lower horizontal block t30 that insulate, insulation cunning
Horizontal block t36, sliding bar t32 and activity horizontal block t31, the positive terminal of bulk charging bindiny mechanism include upper on motion block t38, insulation
Positive terminal end t28 and lower positive terminal end t27, the negative terminals of bulk charging bindiny mechanism include upper negative terminals
Head t39 and lower negative terminal end t40；Insulated slide block is slidably arranged in intracavitary, and the lower horizontal block that insulate is fixed at insulation
Cunning below sliding shoe is intracavitary, and the cunning that horizontal block is fixed above insulated slide block in insulation is intracavitary, activity horizontal block activity cloth
The cunning set above the upper horizontal block that insulate is intracavitary, and 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 for the lower horizontal block that insulate, 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 sliding bar between upper horizontal block and insulated slide block insulating
Spring t37 is pulled open, the both ends for pulling open spring are press-connected on the lower surface for the upper horizontal block that insulate and insulated slide block respectively
On upper surface；It is fixed with lower electromagnet t35 on the upper surface for insulating upper horizontal block, 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 powers on
The electromagnetic force that electricity generates when the electromagnetic force and lower electromagnet that magnet generates when being powered are logical can push insulated slide block after attracting each other
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, which compresses, to be 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.
Referring to fig. 4 shown in-Fig. 8, the power input of each charger and the power input of controller are conductively connected
It is powered on successive control mechanism t75 at one, and the successive control mechanism that is powered when powering on first is powered to controller, then again
It is powered to charger；The successive control mechanism that is powered in lower electricity first allows charger to power off, and then allows controller to power off again.
Referring to fig. 4 shown in-Fig. 8, the successive control mechanism that is powered include right end sealing insulation tube t62, insulation bearing piece t64,
Insulated slide bar t63 and handle t61, insulation bearing piece are fixed on t66 in insulation tube, are transversely provided with slide opening t65 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 successively fixed on bottom surface 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 that the height of No.1 negative terminal end is higher than No. two positive terminal ends is high, No. two positive terminal ends
Height height be higher than No. two negative terminal ends height it is high；From a left side on the lower surface of the insulated slide bar of insulation bearing piece right
To the right side be successively fixed with 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 can compress conductive connection in No.1 negative terminal end
On, No. four positive terminal ends can compress conductive connection 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 in the power supply of successive control mechanism that is powered
On the anode of input terminal；No. three negative terminal ends and No. four negative terminal ends are both electrically connected in the successive control mechanism that is powered
On the cathode of power input.
The combination switch of the present embodiment when in use, No.1 node is connected on the firewire C of AC power source, and No. two are saved
Point is connected on the zero curve N of AC power source.
The combination switch fault self-checking principle of the present embodiment is as follows:
When needing switching combination switch, controller is to reverse-blocking tetrode thyristor KbConductivity control signal is issued, silicon-controlled open is made
Close KbConducting.Electric current is through reverse-blocking tetrode thyristor Kb, inductance LaWith capacitor CaClosed circuit is formed, inductance L is connected in parallel onaThe capacitor at both ends
C2, diode D1, diode D2, diode D3, diode D4, photoelectrical coupler OPT, resistance R1, resistance R0, resistance R2, from electricity consumption
Power supply module and ground terminal SGND together form reverse-blocking tetrode thyristor KbOperation detecting circuit 501.It is flowed through in electric current silicon-controlled
Switch KbWhen reverse-blocking tetrode thyristor KbOperation detecting circuit can generate start pulse signal, keep after a certain period of time, controller to
Magnetic latching relay switch KcClosure control signal is issued, magnetic latching relay switch K is madecClosure.Magnetic latching relay switch Kc
By reverse-blocking tetrode thyristor K after closurebWith inductance LaThe series arm of composition is short-circuit, at this time reverse-blocking tetrode thyristor KbOperation detecting circuit
Trigger pulse will not be generated.Then, controller is to reverse-blocking tetrode thyristor KbIt issues and disconnects control signal, make reverse-blocking tetrode thyristor KbIt is disconnected
It opens, by magnetic latching relay switch KcKeep current supply circuit work.
When needing to cut off combination switch, controller is to reverse-blocking tetrode thyristor KbConductivity control signal is issued, silicon-controlled open is made
Close KbConducting is kept after a certain period of time, and controller is to magnetic latching relay switch KcIt issues and disconnects control signal, magnetic keeps relay
Device switch KcIt then turns off, at this point, silicon-controlled operation detecting circuit will have trigger pulse appearance.Finally, controller is to silicon-controlled
Switch KbIt issues again and disconnects control signal, reverse-blocking tetrode thyristor KbIt then turns off.So far combination switch has just been cut off completely.
The combination switch of the present embodiment has can be carried out self fault detection during switch motion, and without multiple
In addition setting detects the instrument of failure in combination switch, to keep the structure of combination switch simpler, small in size, structure is reliable,
It is low in cost, reduce switching unsuccessful security risk when combination switch uses.
A kind of itself switching fault judgment method suitable for combination switch,
Itself switching failure of combination switch includes reverse-blocking tetrode thyristor KbCan not conducting failure, magnetic latching relay switch
KcCan not be closed failure, magnetic latching relay switch KcCan not disconnect failure and reverse-blocking tetrode thyristor KbCan not turn off failure.
Therefore, itself switching fault judgment method of combination switch includes:
(2-1) judges reverse-blocking tetrode thyristor KbFor can not the method for conducting failure be:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbIt is in an off state, and magnetic latching relay switch KcAlso locate
Under the premise of off-state,
(2-1-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, controller waits reverse-blocking tetrode thyristor Kb
The start pulse signal that returns of operation detecting circuit, and trigger pulse counting is carried out with the pulse counter of controller, when prolonging
When 0.2s after, if the trigger pulse number that receives of controller is greater than 5, i.e., it is believed that reverse-blocking tetrode thyristor KbIt can normally lead
It is logical, if the trigger pulse number that controller receives is less than setting number,
(2-1-2) is again from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, and pulse counter is reset, then
After secondary delay 0.2s, if the trigger pulse number that receives of controller is still less than 5, that is, reverse-blocking tetrode thyristor K can determine whetherbFor
It can not conducting failure.
(2-2) judges magnetic latching relay switch KcMethod for that can not be closed failure is:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbIt has been on shape
State and magnetic latching relay switch KcUnder the premise of being in an off state,
(2-2-1) is first from controller to magnetic latching relay switch KcClosure control signal is issued, and by pulse counter
It resets, is delayed after 0.6s, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than 20 when,
(2-2-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and by pulse counter
It resets, then is delayed after the 0.6s time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than also 20 when,
(2-2-3) is again from controller to magnetic latching relay switch KcClosure control signal is issued, and by step-by-step counting
Device is reset, and is delayed after 0.6s again, at this time if controller receives reverse-blocking tetrode thyristor KbTrigger pulse counting be still greater than 20
When a, that is, it can determine whether magnetic latching relay switch KcFor failure can not be closed.
(2-3) judges magnetic latching relay switch KcMethod for that can not disconnect failure is:
When cutting off combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbIt has been in and has disconnected shape
State and magnetic latching relay switch KcUnder the premise of being in closed state,
(2-3-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued by reverse-blocking tetrode thyristor KbConducting, and prolong
When 0.4s after allow reverse-blocking tetrode thyristor KbReliable conducting, and from controller to magnetic latching relay switch KcIt issues and disconnects control signal,
And reset pulse counter, after waiting 0.6s, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number less than 20
When a；
(2-3-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and by pulse counter
It resets, after again waiting for 0.6s, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number still less than 20 when
Judge magnetic latching relay switch KcFor failure can not be disconnected.
(2-4) judges reverse-blocking tetrode thyristor KbMethod for that can not turn off failure is:
When cutting off combination switch, it is assumed that magnetic latching relay switch KcIt can normally disconnect, and magnetic latching relay switch Kc
It has been in an off state and reverse-blocking tetrode thyristor KbUnder the premise of also on state,
(2-4-1) is first from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, is prolonged
When 0.2s after, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than 5 when；
(2-4-2) is again from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, then
After secondary delay 0.2s, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number when being still greater than 5, that is, can determine whether controllable
Transwitch KbFor failure can not be turned off.
Combination switch energy autonomous detection itself the switching failure of the present embodiment, intelligence degree is high, can detect automatically
Itself switching failure can let the user know that in time whether combination switch failure occurs, and convenient for replacement in time, structure is simple, can
By property height, safety is good.
The successive control mechanism of the energization 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 successively control
Mechanism just allows charger to be powered, and can be fully ensured that in this way when charger is powered, be mutually 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 by current limliting module when being full of, and 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 far as possible.When each single battery is full of and each list
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 of series connection after allowing single battery to be connected in this way
There are electric current flowing, the high reliablity of battery.The charging current or charging voltage of each charger between each other can not be identical.Pass through
Switching switch can select different chargers to some single battery.The cooperation of switching switch and current limliting module can be needed preferably
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, is also convenient for individually controlling the charging voltage of each single battery.It is examined during the charging process by temperature
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 will not influence other single battery chargings, and not be battery pack
Mutually independent single battery each in battery pack can be sequentially connected in series when charging and become series-connected cell together, be electric
The series-connected cell for being sequentially connected in series together in battery pack can be become mutually independent single battery when charging by pond group, to every
The charging process of a single battery also can be carried out voltage detecting, and can the charging progress to each single battery individually controlled
System, can also the charging voltage to each single battery individually controlled.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 highly-safe, good reliability, and be equipped with logical
Electric successively control mechanism, which powers on battery pack, first allows the single battery of series connection to become independent single battery in charging process
After recharge, charge high reliablity.
The battery connection module of the present embodiment can will be each mutually indepedent in battery pack when battery pack can be allowed to charge well
Single battery be sequentially connected in series and become series-connected cell together, can will be sequentially connected in series in battery pack when for battery pack charging
The series-connected cell to link together becomes mutually independent single battery, high reliablity.
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 charge and discharge is carried out from the battery pack of electricity consumption power supply module
System, high reliablity.
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 (6)
1. combination switch, which is characterized in that including No.1 node (701), No. two nodes (702), node Msa, node Mb, inductance
La, capacitor Ca, capacitor C2, diode D1, diode D2, diode D3, diode D4, photoelectrical coupler OPT, resistance R0, resistance
R1, resistance R2, switching switch Ka, Magnetic driving circuit (502), silicon driving circuit (503), from electricity consumption power supply module (901), ground connection
It holds SGND and contains the controller (107) of pulse counter (805)；The switching switch KaIncluding reverse-blocking tetrode thyristor KbIt is protected with magnetic
Hold relay switch Kc, the photoelectrical coupler OPT includes light emitting diode D5With phototriode Q0；The reverse-blocking tetrode thyristor
KbOne end and magnetic latching relay switch KcOne end connect respectively with No.1 node, the reverse-blocking tetrode thyristor KbThe other end,
Resistance R1One end and inductance LaOne end respectively with node MaConnection, the inductance LaThe other end, magnetic latching relay switch
KcThe other end, resistance R2One end and capacitor CaOne end respectively with node MbConnection, the capacitor CaThe other end be connected to
On No. two nodes, resistance R1The other end and capacitor C2One end connection, the diode D1Positive terminal and diode D3It is negative
Extremely it is connected to capacitor C2The other end on, the diode D2Positive terminal and diode D4Negative pole end be separately connected
In resistance R2The other end on, the diode D1Negative pole end and diode D2Negative pole end be connected to light emitting diode
D5Positive terminal on, the diode D3Positive terminal and diode D4Positive terminal be connected to light emitting diode D5It is negative
On extreme, the phototriode Q0Collector terminal respectively with resistance R0One end connected with controller, the phototriode
Q0Emitter connect with signal ground end SGND, it is described from electricity consumption power supply module respectively with resistance R0The other end, Magnetic driving electricity
Road, silicon driving circuit are connected with controller, the silicon driving circuit respectively with reverse-blocking tetrode thyristor KbControl terminal and controller connect
Connect, the Magnetic driving circuit respectively with magnetic latching relay switch KcControl terminal 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；It further include charger equal with single battery number respectively, 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；On one-to-one one end for being connected to current limliting module of turning end of each switching switch, 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 and each switching of each current limliting module
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
Mutually independent single battery each 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；
The power input of each charger and the power input of controller are conductively connected the successively control machine that is powered at one
On structure, and the successive control mechanism that is powered when powering on first is powered to controller, then gives charger to be powered again；It is logical in lower electricity
Electric successively 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 memory connected to the controller (106).
3. combination switch according to claim 1, which is characterized in that further include display connected to the controller (504).
4. combination switch according to claim 1, which is characterized in that the inductance LaInductance be that 70-75 is prosperous.
5. combination switch according to claim 1, which is characterized in that further include alarm connected to the controller (507).
6. a kind of itself switching fault judgment method suitable for combination switch described in claim 1, which is characterized in that
Itself switching failure of combination switch includes reverse-blocking tetrode thyristor KbCan not conducting failure, magnetic latching relay switch Kc's
Failure, magnetic latching relay switch K can not be closedcCan not disconnect failure and reverse-blocking tetrode thyristor KbCan not turn off failure, because
This, itself switching fault judgment method of combination switch includes:
(2-1) judges reverse-blocking tetrode thyristor KbFor can not the method for conducting failure be:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbIt is in an off state, and magnetic latching relay switch KcIt is also at disconnected
Under the premise of open state,
(2-1-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, controller waits reverse-blocking tetrode thyristor KbFortune
The start pulse signal that row detection circuit returns, and trigger pulse counting is carried out with the pulse counter of controller, when delay is set
After fixing time, if the trigger pulse number that controller receives is greater than setting number, i.e., it is believed that reverse-blocking tetrode thyristor KbEnergy
Normally, if the trigger pulse number that controller receives is less than setting number,
(2-1-2) is again from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued, and pulse counter is reset, is prolonged again
When setting time after, if the trigger pulse number that receives of controller is still less than setting number, that is, can determine whether that this silicon-controlled is opened
Close KbFor can not conducting failure；
(2-2) judges magnetic latching relay switch KcMethod for that can not be closed failure is:
When putting into combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbIt is in the conductive state and
Magnetic latching relay switch KcUnder the premise of being in an off state,
(2-2-1) is first from controller to magnetic latching relay switch KcClosure control signal is issued, and pulse counter is reset,
After the setting time that is delayed, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than setting number when,
(2-2-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and pulse counter is reset,
It is delayed after setting time again, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number also greater than setting number when,
(2-2-3) is again from controller to magnetic latching relay switch KcClosure control signal is issued, and pulse counter is clear
Zero, it is delayed after setting time again, at this time if controller receives reverse-blocking tetrode thyristor KbTrigger pulse counting be still greater than and set
When determining number, that is, it can determine whether magnetic latching relay switch KcFor failure can not be closed；
(2-3) judges magnetic latching relay switch KcMethod for that can not disconnect failure is:
When cutting off combination switch, it is assumed that reverse-blocking tetrode thyristor KbEnergy normally, and reverse-blocking tetrode thyristor KbBe in an off state and
Magnetic latching relay switch KcUnder the premise of being in closed state,
(2-3-1) is first from controller to reverse-blocking tetrode thyristor KbConductivity control signal is issued by reverse-blocking tetrode thyristor KbConducting, and be delayed and set
It fixes time and allows reverse-blocking tetrode thyristor KbAfter reliable conducting, and from controller to magnetic latching relay switch KcIt issues and disconnects control signal,
And reset pulse counter, after waiting setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number it is small
When setting number；
(2-3-2) is again from controller to magnetic latching relay switch KcIt issues and disconnects control signal, and pulse counter is reset,
After again waiting for setting time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number still less than setting number when,
It can determine whether magnetic latching relay switch KcFor failure can not be disconnected；
(2-4) judges reverse-blocking tetrode thyristor KbMethod for that can not turn off failure is:
When cutting off combination switch, it is assumed that magnetic latching relay switch KcIt can normally disconnect, and magnetic latching relay switch KcLocate
In off-state and reverse-blocking tetrode thyristor KbUnder the premise of also on state,
(2-4-1) is first from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, delay is set
After fixing time, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be greater than setting number when；
(2-4-2) is again from controller to reverse-blocking tetrode thyristor KbShutdown control signal is issued, and pulse counter is reset, is prolonged again
When setting time after, if controller receives reverse-blocking tetrode thyristor KbTrigger pulse number be still greater than setting number when, can sentence
Disconnected reverse-blocking tetrode thyristor KbFor failure can not be turned off.
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| CN201710029781.0A CN106646215B (en) | 2017-01-12 | 2017-01-12 | Combination switch and its own switching fault judgment method |
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| CN201710029781.0A CN106646215B (en) | 2017-01-12 | 2017-01-12 | Combination switch and its own switching fault judgment method |
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| CN106646215B true CN106646215B (en) | 2019-07-02 |
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| CN107492897B (en) * | 2017-06-16 | 2020-10-02 | 浙江华云信息科技有限公司 | Synchronous switch action delay tracking system for intelligent capacitor and working method |
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| CN203722237U (en) * | 2013-12-07 | 2014-07-16 | 指明集团有限公司 | Composite switch of intelligent capacitor |
| CN203894386U (en) * | 2014-06-23 | 2014-10-22 | 浙江人民电器有限公司 | Fault detection circuit and combination switch arranged in fault detection circuit |
| CN104600722A (en) * | 2015-02-09 | 2015-05-06 | 吕春美 | Intelligent zero-crossing switching device for high-voltage shunt capacitors |
| CN104914377A (en) * | 2015-05-26 | 2015-09-16 | 吴小燕 | Fault detection circuit |
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2017
- 2017-01-12 CN CN201710029781.0A patent/CN106646215B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312125Y (en) * | 2008-11-18 | 2009-09-16 | 常州帕斯菲克自动化技术有限公司 | Composite power factor compensation harmonic elimination controller |
| CN102013688A (en) * | 2010-12-16 | 2011-04-13 | 江苏南自通华电力自动化有限公司 | Synchronous switch for controlling switching of three-phase power capacitor |
| CN201985532U (en) * | 2011-01-30 | 2011-09-21 | 中国人民解放军后勤工程学院 | Intelligent composite integrated switch |
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