CN101868842A - Be used for protecting the system and method for the loop construction of controlled switch - Google Patents
Be used for protecting the system and method for the loop construction of controlled switch Download PDFInfo
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- CN101868842A CN101868842A CN200780101562.3A CN200780101562A CN101868842A CN 101868842 A CN101868842 A CN 101868842A CN 200780101562 A CN200780101562 A CN 200780101562A CN 101868842 A CN101868842 A CN 101868842A
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 230000000638 stimulation Effects 0.000 claims abstract description 15
- 230000004044 response Effects 0.000 claims abstract description 9
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
- H01H47/06—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by changing number of serially-connected turns or windings
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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
- H01H47/002—Monitoring or fail-safe circuits
-
- 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
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
- H01H47/10—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by switching-in or -out impedance external to the relay winding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Keying Circuit Devices (AREA)
Abstract
Be used for protecting the system and method for the loop construction of controlled switch.In one embodiment, the present invention relates to a kind of circuit, this circuit comprises at least one load switch that is connected between power supply and the load, and at least one auxiliary switch, and each switch can encourage between default location and switching position; Loop construction, be configured in response to control described at least one load switch of input stimulus and described at least one auxiliary switch, described loop construction is suitable for switching between following configuration: stimulation arrangement, be used for from described default location described at least one load switch of excitation and described at least one auxiliary switch, and keep configuration, be used for described at least one load switch and described at least one auxiliary switch are remained on described switching position; And the self-recovery current limiting device, be configured to exceed under the situation that threshold value reaches predetermined amount of time at electric current, limit the electric current in the stimulation arrangement of described loop construction; Wherein said at least one auxiliary switch is configured to described loop construction is switched to described maintenance configuration from described stimulation arrangement.
Description
Background technology
The present invention relates in general to the system and method that is used for protecting the loop construction that controlled switch uses.More particularly, the present invention relates to be used to protect the system of the loop construction of the switching power that is provided for encouraging one or more load switches.Loop construction produces switching power in response to sizable electric current.Yet the electric current that loop construction is continuously applied same level may cause coil to damage.
Summary of the invention
The system and method for the loop construction that is used for protecting controlled switch has been described.In a plurality of embodiment, loop construction comprises handover configurations and keeps configuration.In handover configurations, can provide big electric current, and in keeping configuration, can provide less current to loop construction.Be subjected to the infringement that high-current leading rises in order to protect the loop construction that is in the handover configurations to avoid, can use self-recovery current limiting device remarkable restriction electric current when electric current exceeds threshold value and reaches predetermined amount of time.
In one embodiment, the present invention relates to a kind of circuit, this circuit comprises at least one load switch that is connected between power supply and the load, and at least one auxiliary switch, and each switch can encourage between default location and switching position; Loop construction, be configured to encourage described at least one load switch and at least one auxiliary switch in response to the control input, described loop construction is suitable for switching between following configuration: stimulation arrangement, be used for from described default location described at least one load switch of excitation and described at least one auxiliary switch, dispose with keeping, be used for described at least one load switch and described at least one auxiliary switch are remained on described switching position; And the self-recovery current limiting device, be configured to exceed under the situation that threshold value reaches predetermined amount of time at electric current, limit the electric current in the stimulation arrangement of described loop construction; Wherein said at least one auxiliary switch is configured to described loop construction is switched to described maintenance configuration from described stimulation arrangement.
In another embodiment, the present invention relates to a kind of switching circuit that is used to encourage one or more load switches and at least one auxiliary switch, in described auxiliary switch and the described one or more load switch each has default location and switching position, the default location of wherein said auxiliary switch is closed, described switching circuit comprises: main coil, be configured to from control power supply received current, and being provided for described one or more load switches and described auxiliary switch are remained on the power of described switching position, wherein said main coil comprises first end, second end and tap; The self-recovery current limiting device is connected to first end and the described auxiliary switch of described main coil, and described self-recovery current limiting device is configured to exceed at described electric current and limits described electric current when threshold value reaches predetermined amount of time; From coil, comprise in the described main coil part from second end of described main coil to tap, wherein said tap is connected to described auxiliary switch, and the wherein said power that is configured to be provided for encouraging from described default location described one or more load switch and described auxiliary switch from coil.
One implementing again, the present invention relates to a kind of method that is used for operation switching circuit, this switching circuit comprises the loop construction that is configured to encourage in response to the control input at least one load switch and at least one auxiliary switch, this loop construction can and keep in stimulation arrangement switching between the configuration, described stimulation arrangement is used for from default location described at least one load switch of excitation and described at least one auxiliary switch, and described maintenance configuration is used for described at least one load switch and described at least one auxiliary switch are remained on switching position, this switching circuit also comprises the self-recovery current limiting device with current threshold, and described method comprises: provide switch current to described loop construction; In response to described switch current, produce the power that is used to switch described at least one load switch and described at least one auxiliary switch; And when described switch current exceeds described current threshold and reaches predetermined amount of time, use the flow through switch current of described loop construction of described self-recovery current limiting device restriction.
Description of drawings
Fig. 1 is the schematic block diagram according to the electric control system of the embodiment of the invention.
Fig. 2 is the schematic diagram according to the electric control system of the controlled switch that has current limiting device comprising of the embodiment of the invention.
Fig. 3 is the schematic diagram according to the electric control system of the controlled switch that has load switch closed under the normal condition comprising of the embodiment of the invention.
Fig. 4 is the schematic diagram according to the electric control system of the controlled switch that has three load switches comprising of the embodiment of the invention.
Fig. 5 is the schematic diagram according to the electric control system of the controlled switch that has a load switch comprising of the embodiment of the invention.
Fig. 6 is the process flow diagram that is used to operate controlled switch according to the embodiment of the invention.
Embodiment
The system and method embodiment of the coil that is used for protecting the controlled switch such as contactor or relay has been shown in the accompanying drawing with reference to the accompanying drawings.Controlled switch can be used for load with various sizes and phase place and is connected with power supply or disconnects.This controlled switch generally includes the coil as electromagnet, and when electric current was applied to coil, coil was provided for the power of switch load.This power can be used to switch one or more load switches and auxiliary switch.Need provide big electric current can make coil switch load switch and auxiliary switch.Usually the armature that uses hold-in winding or " energy-conservation (economizer) " coil to reduce when having encouraged load switch and auxiliary switch controlled switch remains on the required magnitude of current of switching position.In this case, the part of Energy-saving coil can be used as exciter or " adhesive (pull-in) " coil.
In the operation, the control power supply applies voltage, produces big electric current in pull-in winding.Auxiliary switch closed under hold-in winding and the normal condition is arranged in parallel, and makes auxiliary switch short circuit in switching cycle.Pull-in winding can with the auxiliary switch arranged in series, and can produce and control the proportional switching power of big electric current that power supply is supplied.When controlled switch was switched the power excitation, auxiliary contact disconnected, and energy-conservation (maintenance) coil is placed in the current path.Energy-saving coil has the impedance bigger than pull-in winding usually, and this has reduced controlled switch remained on switching position and the electric current that needs from the control power supply.
Under the idle situation of auxiliary switch, the big exciting current that continues may cause permanent damage to coil, and makes it produce fault immediately.In order when auxiliary switch is not worked, to avoid coil and controlled switch (as relay) to damage, with self-recovery current limiting device and pull-in winding and auxiliary switch arranged in series.When electric current exceeded threshold value and reaches predetermined amount of time, the self-recovery current limiting device is the flow through electric current of this device of restriction significantly.Drop to threshold value when following at electric current, recover device certainly and get back to its reset condition, under reset condition, this device is only to produce the mode conduction current of minimum limit to electric current.
Among the embodiment, controlled switch can be controlled the distributing electric power in the electric system of aircraft.Can use DC or AC (single-phase, two-phase or three-phase) system or its combination in any that electric power is distributed.Among the embodiment, controlled switch has two load switches that are used to switch the DC power supply.Among some embodiment, the DC power work is at 28 volts, 26 volts or 270 volts.Among the embodiment, the DC power work is in 11 to 28 volts scope.Among other embodiment, controlled switch has three load switches that are used to switch AC power supplies.Among the embodiment, AC power supplies is worked under the frequency of 115 volts and 400 hertz.Among other embodiment, controlled switch has the single-phase single load switch that can switch in DC power supply or the AC power supplies.Among other embodiment, power supply is worked under other voltage and other frequency.Among the embodiment, the DC power supply can comprise battery, auxiliary power unit and/or outside DC power supply.Among the embodiment, AC power supplies can comprise generator, ram air turbine and/or external AC power supply.
Shown in Fig. 1 according to the schematic block diagram of the electric control system of the embodiment of the invention.Electric control system 200 comprises the controlled switch 202 that is connected to power supply 204, load 206 and control power supply 208.At work, if controlled switch 202 receives signal from control power supply 208, then switch 202 is connected load 206 or disconnects with power supply 204.
Among the embodiment, electric control system 200 is subsystems of the electric system of aircraft.Power supply 204 can be generator, battery or other AC or DC power supply.Load 206 can comprise the aircraft flight instrument, such as basic system and/or the passenger services facilities such as lamp, air-conditioning and entertainment systems such as take-off and landing device, external modulation, aircraft engine controls.Among the embodiment, loading range needs 1 to 400 ampere.Among another embodiment, load needs 50 to 60 amperes usually.Control power supply 208 can be in response to automatic system or manual system and the signal that generates.In a lot of embodiment, the control power supply can be supplied the magnitude of current that is enough to operate controlled switch 202.Among the embodiment, just be enough to make controlled switch to connect load or disconnecting consumers from 6 to 7 amperes that control power supply.Among the embodiment, controlled switch is a contactor.Among another embodiment, controlled switch is a relay.
Fig. 2 shows the schematic block diagram according to the electric control system of the controlled switch that has current limiting device comprising of the embodiment of the invention.Electric control system 300 comprises controlled switch 302, power supply 304, load 306 and control power supply 308.Controlled switch 302 comprises pull-in winding 310, Energy-saving coil 312, auxiliary switch 320, first load switch 322, second load switch 324 and current limiting device 330.Energy-saving coil 312 comprises first end 314, tap 316 and second end 318, wherein extends to the part formation pull-in winding of tap 316 in the Energy-saving coil from second end 318.
In the operation, control power supply 308 provides voltage and switch current at second end, 318 places to pull-in winding 310.At this moment, the electric current of 330 pairs of these devices of flowing through of current limiting device has minimum impedance.Therefore, initial, nearly all switch current all passes through pull-in winding 310 and flows out from tap 316, by auxiliary switch 320 and current limiting device 330, gets back to control power supply 308 via first end 314 then.Among the embodiment, the switch current that is provided by control power supply 308 enters at first end, 314 places of Energy-saving coil 312, and returns via second end 318.
For the ease of using pull-in winding to switch, initial switch current can be big electric current.Among the embodiment, initial switch current or pour in (inrush) electric current and be approximately 6 to 7 amperes.Pull-in winding serves as electromagnet, is used for switching physically or encouraging the power of auxiliary switch and two load switches with generation.Owing to switch is remained on power that the switching position place needs usually less than splitting the required power of line operate of putting into, therefore after the successful switch auxiliary switch, can reduce to control the switch current that power supply is supplied.This can by disconnect the auxiliary contact in parallel with hold-in winding and so the hold-in winding that will have a higher resistance be placed in the current path and realize.
The switch contact fault, all may cause auxiliary switch to disconnect from the low or other reasons of control power source voltage.In this case, current limiting device can detect lasting switch current, and plays the effect of the electric current that limits this device of flowing through.Among the embodiment, current limiting device is a resettable fuse, for example thermistor or condensate positive temperature coefficient (PPTC) fuse.In this case, resettable fuse has threshold current or tripping current, makes that resettable fuse begins to be rapidly heated when exceeding threshold value and reach predetermined amount of time.Heat changes the resistance characteristic of resettable fuse, makes that when exceeding threshold value the resistance of this device significantly increases.Among the embodiment, resistance increases at least one the order of magnitude.Among another embodiment, resistance is index to be increased.Yet when the electric current of the resettable fuse of flowing through was got back to the level that is lower than threshold value, the resistance of fuse became minimum once more, is resumed as fuse.By this way, resettable fuse can use inferior arbitrarily, causes switching coil to damage to prevent switch fault.
Among the embodiment, current limiting device can be can be at a time between the element of input current level and threshold value and can be based on the comparison and the combination of elements of the total impedance that change is seen from input current relatively in the section.This combination can comprise the device of arbitrary number, comprises integrated circuit, processor and/or discrete device connected to one another.
Among the embodiment, resettable fuse be rapidly heated flow with the restriction electric current before, must exceed threshold current and reach time period greater than 20 to 30 milliseconds.Among the embodiment, resettable fuse can be POLYFUSE
From recovering the positive temperature coefficient fuse, for example 60R250,60R300 that makes by the Littlefuse Inc. in the blue city of Illinois De Shipei and the voluntary insurance silk among the 60R375.In this case, threshold current can be respectively 5,6 and 7.5 amperes.Among the embodiment, inrush current is greater than 6 to 7 amperes.Among another embodiment, must exceed the time period that threshold current reaches much larger than 20 to 30 milliseconds.Among the embodiment, the use in parallel together of two or more resettable fuses with the increase current limiting capacity, and can be prolonged the compound action time that significantly changes their impedance.Among another embodiment, the use of two or more resettable fuses can being connected together.
In one embodiment of the invention, return simply referring to Fig. 1, controlled switch 202 is to work at the identical mode of the controlled switch 302 described modes of Fig. 2 with above-mentioned.
Fig. 3 illustrates the schematic block diagram according to the electric control system of the controlled switch that has under normal circumstances closed load switch comprising of the embodiment of the invention.Electric control system 400 comprises controlled switch 402, power supply 404, load 406 and control power supply 408.Controlled switch 402 comprises pull-in winding 410, Energy-saving coil 412, auxiliary switch 420, first load switch 422, second load switch 424 and current limiting device 430.Energy-saving coil 412 comprises first end 414, tap 416 and second end 418, wherein extends to the part formation pull-in winding of tap 416 in the Energy-saving coil from second end 418.
Except load switch 422 and load switch 424 were under normal circumstances closed switch, the electric control system 400 of Fig. 4 was identical with embodiment shown in Figure 3.Electric control system 400 can be as before working described at embodiment as shown in Fig. 3.
Fig. 4 shows the schematic block diagram according to the electric control system of the controlled switch that has three load switches comprising of the embodiment of the invention.Electric control system 500 comprises controlled switch 502, power supply 504, load 506 and control power supply 508.Controlled switch 502 comprises pull-in winding 510, Energy-saving coil 512, auxiliary switch 520, first load switch 522, second load switch 524, the 3rd load switch 526 and current limiting device 530.Energy-saving coil 512 comprises first end 514, tap 516 and second end 518, wherein extends to the part formation pull-in winding of tap 516 in the Energy-saving coil from second end 518.
Except comprising additional load switch, the electric control system of Fig. 5 and the embodiment shown in Fig. 3 are much at one.Electric control system 500 can be worked as described at embodiment as shown in Fig. 3.
Fig. 5 illustrates the schematic block diagram according to the electric control system of the controlled switch that has a load switch comprising of the embodiment of the invention.Electric control system 600 comprises controlled switch 602, power supply 604, load 606 and control power supply 608.Controlled switch 602 comprises pull-in winding 610, Energy-saving coil 612, auxiliary switch 620, load switch 622 and current limiting device 630.Energy-saving coil 612 comprises first end 614, tap 616 and second end 618, wherein extends to the part formation pull-in winding of tap 616 in the Energy-saving coil from second end 618.
Except only comprising a load switch, the electric control system of Fig. 5 and the embodiment shown in Fig. 2 are much at one.Electric control system 600 can be worked as described at embodiment as shown in Fig. 2.
Among the embodiment, can use the load switch of arbitrary number in conjunction with at least one auxiliary switch, and the disconnection under normal circumstances of configuration arbitrary number or under normal circumstances closed acquiescence switch setting.
Fig. 6 illustrates the method flow diagram that is used to operate controlled switch according to the embodiment of the invention.Method 750 is beginning when coil (as pull-in winding) provides (752) switch current.Then, this method generates the power that (754) are used to switch one or more load switches and auxiliary switch.Among the embodiment, this power is proportional to switch current, or the function of switch current.Then, this method determines whether (756) auxiliary switch can not work.Among the embodiment, carry out describedly determining based on the magnitude of current of flow through current limiting device and coil.If auxiliary switch can not be worked, then this method limits the electric current of (758) flowing through coil, and returns to determine whether (756) auxiliary switch can not disconnect.Among the embodiment, use resettable fuse to limit the electric current of flowing through coil.If the auxiliary switch operate as normal, then this method allows (760) all magnitude of current flowing through coil.
Though above description has comprised a plurality of specific embodiment of the present invention, the scope that this should not be construed as limiting the invention, on the contrary, this only is the example of embodiment.Therefore, scope of the present invention should be definite by illustrated embodiment, and should be determined by claims and equivalent thereof.
Claims (25)
1. switching circuit comprises:
Be connected at least one load switch between power supply and the load, and at least one auxiliary switch, each switch can encourage between default location and switching position;
Loop construction is configured to encourage described at least one load switch and described at least one auxiliary switch in response to the control input, and described loop construction is suitable for switching between following configuration:
Stimulation arrangement, be used for from described default location described at least one load switch of excitation and described at least one auxiliary switch and
Keep configuration, be used for described at least one load switch and described at least one auxiliary switch are remained on described switching position; And
The self-recovery current limiting device is configured to exceed under the situation that threshold value reaches predetermined amount of time at electric current, limits the electric current in the stimulation arrangement of described loop construction;
Wherein said at least one auxiliary switch is configured to described loop construction is switched to described maintenance configuration from described stimulation arrangement.
2. switching circuit according to claim 1,
Wherein said control input and described power supply are the aircraft electrical powers; And
Described load is the electric load of aircraft.
3. switching circuit according to claim 1 wherein saidly increases at least one the order of magnitude from the impedance that recovers device when described electric current exceeds threshold value and reaches predetermined amount of time.
4. switching circuit according to claim 1 wherein saidly is configured to allow the situation current downflow of electric current at minimum impedance from recovering device when described electric current is lower than described threshold value and reaches predetermined amount of time.
5. switching circuit according to claim 1,
Wherein first electric current by described control input supply encourages described at least one load switch and described at least one auxiliary switch from described default location;
Wherein second electric current by described control input supply remains on described switching position with described at least one load switch and described at least one auxiliary switch; And
Wherein said first electric current is greater than described second electric current.
6. switching circuit according to claim 1, wherein said is one of in thermistor and the positive temperature coefficient device from recovering device.
7. switching circuit according to claim 1,
The default location of wherein said at least one auxiliary switch is closed; And
The default location of wherein said at least one load switch is to disconnect.
8. switching circuit according to claim 1,
The default location of wherein said at least one auxiliary switch is closed; And
The default location of wherein said at least one load switch is closed.
9. switching circuit according to claim 1,
Wherein said loop construction comprises:
Main coil and from coil, wherein said is the part that extends to the tap of described main coil the described main coil from first end of described main coil from coil;
Wherein saidly use in the stimulation arrangement that is being used for from described default location described at least one load switch of excitation and described at least one auxiliary switch from coil; And
Wherein said main coil uses in the maintenance configuration that is used for described at least one load switch and described at least one auxiliary switch are remained on described switching position.
10. switching circuit according to claim 9,
Wherein said at least one auxiliary switch is connected described tap and described from recovering between the device;
Wherein said from recovering second end that device is connected to described main coil; And
The default location of wherein said at least one auxiliary switch is closed.
11. method that is used for operation switching circuit, described switching circuit comprises the loop construction that is configured to encourage in response to the control input at least one load switch and at least one auxiliary switch, described loop construction switches in stimulation arrangement with between keeping disposing, described stimulation arrangement is used for from default location described at least one load switch of excitation and described at least one auxiliary switch, and described maintenance configuration is used for described at least one load switch and described at least one auxiliary switch are remained on switching position, described switching circuit also comprises the self-recovery current limiting device with current threshold, and described method comprises:
Provide switch current to described loop construction;
Produce the power that is used to switch described at least one load switch and described at least one auxiliary switch in response to described switch current; And
When described switch current exceeds described current threshold and reaches predetermined amount of time, use the flow through switch current of described loop construction of described self-recovery current limiting device restriction.
12. method according to claim 11,
Wherein said switching circuit further comprises the control power supply that is configured to described loop construction supply of current; And
Wherein said at least one load switch is connected between power supply and the load.
13. method according to claim 12,
Wherein said control power supply and described power supply are the aircraft electrical powers; And
Wherein said load is the electric load of aircraft.
14. method according to claim 11, wherein when described switch current exceeds described current threshold and reaches predetermined amount of time, use the flow through switch current of described loop construction of described self-recovery current limiting device restriction to comprise: when described switch current exceeds described threshold value and reaches predetermined amount of time, to use significantly the flow through switch current of the loop construction that is in stimulation arrangement of restriction of described self-recovery current limiting device.
15. method according to claim 11, wherein when described switch current exceeds described current threshold and reaches predetermined amount of time, the switch current that uses described self-recovery current limiting device to limit the described loop construction of flowing through is carried out by described self-recovery current limiting device, wherein when described switch current exceeded described threshold value and reaches predetermined amount of time, the resistance that recovers device certainly increased at least one the order of magnitude.
16. method according to claim 11 further is included in and allows the situation current downflow of described switch current in minimum resistance when described switch current is lower than described current threshold.
17. method according to claim 11,
Wherein the switch current by described control input supply encourages described at least one load switch and described at least one auxiliary switch from described default location;
Wherein the holding current by described control input supply remains on described switching position with described at least one load switch and described at least one auxiliary switch; And
Wherein said switch current is greater than described holding current.
18. method according to claim 11,
The default location of wherein said at least one auxiliary switch is closed; And
The default location of wherein said at least one load switch is to disconnect.
19. method according to claim 11,
The default location of wherein said at least one auxiliary switch is closed; And
The default location of wherein said at least one load switch is closed.
20. switching circuit that is used to encourage auxiliary switch and one or more load switches, in described auxiliary switch and the described one or more load switch each has default location and switching position, the default location of wherein said auxiliary switch is closed, and described switching circuit comprises:
Main coil is configured to from control power supply received current, and is provided for described auxiliary switch and described one or more load switch are remained on the power of described switching position, and wherein said main coil comprises first end, second end and tap;
The self-recovery current limiting device is connected to first end and the described auxiliary switch of described main coil;
From coil, comprise in the described main coil part from second end of described main coil to tap, wherein said tap is connected to described auxiliary switch, and the wherein said power that is configured to be provided for encouraging from described default location described auxiliary switch and described one or more load switches from coil; And
Wherein saidly be configured to when described electric current exceeds threshold value and reaches predetermined amount of time the restriction described electric current of flowing through from coil from recovering device.
21. switching circuit according to claim 20 further comprises:
Be connected to the power supply of described one or more load switches, described one or more load switches are connected to load.
22. switching circuit according to claim 20 wherein saidly is configured to when described electric current exceeds described threshold value and reaches predetermined amount of time significantly from recovering device that the restriction electric current flows.
23. switching circuit according to claim 20 wherein saidly increases at least one the order of magnitude from the resistance that recovers device when described electric current exceeds threshold value and reaches predetermined amount of time.
24. switching circuit according to claim 20 wherein saidly is configured to allow the situation current downflow of electric current in minimum resistance from recovering device when described electric current is lower than described threshold value and reaches predetermined amount of time.
25. switching circuit according to claim 20, wherein said is one of in thermistor and the positive temperature coefficient device from recovering device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2007/085026 WO2009064308A1 (en) | 2007-11-16 | 2007-11-16 | System and method for protecting a coil structure in a controlled switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101868842A true CN101868842A (en) | 2010-10-20 |
| CN101868842B CN101868842B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780101562.3A Expired - Fee Related CN101868842B (en) | 2007-11-16 | 2007-11-16 | System and method for protecting a coil structure in a controlled switch |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2210262B1 (en) |
| CN (1) | CN101868842B (en) |
| ES (1) | ES2553352T3 (en) |
| HK (1) | HK1144331A1 (en) |
| WO (1) | WO2009064308A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2977706B1 (en) * | 2011-07-04 | 2014-03-07 | Alstom Grid Ag | DEVICE FOR SPRING CONTROL OF HIGH OR MEDIUM VOLTAGE SWITCHING EQUIPMENT |
| EP3525225B1 (en) * | 2018-02-08 | 2022-01-12 | Fico Triad, S.A. | Contactor system for a fluctuating dc power supply and method for stabilising a contactor system fed by a fluctuating dc power supply |
| FR3117664A1 (en) * | 2020-12-16 | 2022-06-17 | Airbus Operations (S.A.S.) | Device for electromechanical switching of an electrical power circuit |
| FR3129767A1 (en) | 2021-11-29 | 2023-06-02 | Airbus Operations (S.A.S.) | Device for electromechanical switching of an electrical power circuit comprising at least one system for detecting the position in contact with or away from a pallet of a contactor |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB272012A (en) * | 1926-04-30 | 1927-06-09 | Igranic Electric Co Ltd | Improvements in or relating to electromagnetic switches operated by alternating current |
| FR2134081B1 (en) * | 1971-04-19 | 1974-02-15 | Cem Comp Electro Mec | |
| JPS6142106A (en) * | 1984-08-03 | 1986-02-28 | Matsushita Electric Works Ltd | Electromagnetic coil |
| JPS61116071A (en) * | 1984-11-08 | 1986-06-03 | Nippon Denso Co Ltd | Starter |
| JPS6220440U (en) * | 1985-07-23 | 1987-02-06 | ||
| JPS62111308A (en) * | 1985-11-09 | 1987-05-22 | Alps Electric Co Ltd | Motor actuator |
| CN2030390U (en) * | 1988-03-26 | 1989-01-04 | 张云祥 | Electricty-saving swtich with phase-failure protecting device |
| US5120908A (en) * | 1990-11-01 | 1992-06-09 | Gazelle Graphic Systems Inc. | Electromagnetic position transducer |
| US5530613A (en) * | 1994-06-01 | 1996-06-25 | Eaton Corporation | Current limiting circuit controller |
| EP1143475B1 (en) * | 1996-04-04 | 2003-11-26 | Denso Corporation | Power supply terminal structure for starter magnet switch |
| CN2332060Y (en) * | 1997-04-24 | 1999-08-04 | 乐清市东方节能电器厂 | Soundproofing energy-saving A. C. contactor |
| CN100463320C (en) * | 2003-01-08 | 2009-02-18 | 钱本宁 | Master control automatic electric appliance turn-off device |
| US20050180078A1 (en) * | 2004-02-13 | 2005-08-18 | Adams Rite Aerospace, Inc. | Solenoid protection method and apparatus |
-
2007
- 2007-11-16 WO PCT/US2007/085026 patent/WO2009064308A1/en active Application Filing
- 2007-11-16 EP EP07864564.5A patent/EP2210262B1/en not_active Not-in-force
- 2007-11-16 ES ES07864564.5T patent/ES2553352T3/en active Active
- 2007-11-16 CN CN200780101562.3A patent/CN101868842B/en not_active Expired - Fee Related
-
2010
- 2010-11-23 HK HK10110889.1A patent/HK1144331A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP2210262A4 (en) | 2013-09-11 |
| WO2009064308A1 (en) | 2009-05-22 |
| EP2210262A1 (en) | 2010-07-28 |
| ES2553352T3 (en) | 2015-12-07 |
| CN101868842B (en) | 2013-06-05 |
| EP2210262B1 (en) | 2015-10-21 |
| HK1144331A1 (en) | 2011-02-11 |
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