CN104269294A - Three-phase integrated alternating-current arc-free electric appliance - Google Patents
Three-phase integrated alternating-current arc-free electric appliance Download PDFInfo
- Publication number
- CN104269294A CN104269294A CN201410561028.2A CN201410561028A CN104269294A CN 104269294 A CN104269294 A CN 104269294A CN 201410561028 A CN201410561028 A CN 201410561028A CN 104269294 A CN104269294 A CN 104269294A
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- China
- Prior art keywords
- fixed contact
- contact
- phase
- microscler
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H2009/307—Means for extinguishing or preventing arc between current-carrying parts with slow break, e.g. for AC current waiting for a zero crossing
Abstract
The invention relates to a three-phase integrated alternating-current arc-free electric appliance. The three-phase integrated alternating-current arc-free electric appliance comprises an insulation outer shell, fixed contacts, long-shaped movable contacts, diodes, inter-phase insulation partition boards, electromagnetic mechanical acting mechanisms, insulation movable-contract supports and single-chip microcomputer control systems. As the three-phase contact system integrated scheme is adopted, the basic working principles of a three-phase circuit, the electric appliance contacts and the diodes are applied, and the working sequence of the three-phase electric appliance contacts is controlled, arc-free connection and arc-free disconnection of normal operation and arc-free disconnection in the fault state of the three-phase electric appliance are achieved, the structure of the three-phase alternating-current control electric appliance is greatly simplified, the cost of the three-phase control switch electric appliance is greatly reduced, the size of the switch electric appliance is reduced, the electrical life of the electric appliance is greatly prolonged, and the operation reliability of the electric appliance is greatly improved.
Description
Technical field
The present invention relates to a kind of three-phase integratedization to exchange without arc electrical equipment, belong to control and scheduling co-design appliance field.
Background technology
The no arc switching technology of device for switching mainly contains two kinds, one is the non-contact electrical equipment adopting electronic device to form completely, two mixed electrical appliances be made up of with electronic device or other device contact, these two kinds of electrical apparatus technologies have had many papers to report, and also have product to come out.Non-contact electrical equipment is due to complete applying electronic device, and electronic device must long-time running, and the anti overvoltage of electronic device is poor with overcurrent capability, and therefore the capacity of electronic device very greatly, causes electrical equipment cost very high, technical sophistication.The control system more complicated of mixed electrical appliance, and there is the problem of electrical isolation, owing to adopting controlled electron device, its cost is also higher and Reliability comparotive is low, such as, patent that Zhang Peiming etc. obtain " Intelligent hybrid ac. contactor " (patent No. ZL00242121.6) etc., such as, patent " a kind of Arcless switch equipment " (patent No.: CN201120517187) that Cai Li obtains relates to a kind of Arcless switch equipment, its cross-over connection on main contact PTC element in parallel, the resistance of PTC is utilized to increase thus reduce circuital current, but in fact can not accomplish there is no arc starting and disjunction completely, and can not decline immediately due to PTC temperature after effect, cannot frequent movement.。
For this reason, the present invention proposes three-phase integratedization and exchanges without arc electrical equipment, the program comprises insulation crust, fixed contact, microscler moving contact, diode, interphase insulating baffle plate, electromagnetic and mechanical actuating mechanism, insulation moving contact rack and single-chip computer control system, adopt three-phase contact system integrated programme, application three-phase circuit, the basic functional principle of electrical contact and diode, control the job order of three-phase electric apparatus contact, what realize that three-phase electric apparatus normally runs connects without arc, the thick-less vane of disjunction and malfunction, significantly simplify the structure of three-phase alternating current control and scheduling co-design electrical equipment, significantly reduce the cost of three-phase control and scheduling co-design electrical equipment, reduce electrical equipment volume, increase substantially electrical endurance and the reliability of operation of electrical equipment.
Summary of the invention
A kind of three-phase integratedization is the object of the present invention is to provide to exchange without arc electrical equipment, this switch comprises insulation crust, fixed contact, microscler moving contact, diode, interphase insulating baffle plate, electromagnetic and mechanical actuating mechanism, insulation moving contact rack and single-chip computer control system, adopt three-phase contact system integrated programme, application three-phase circuit, the basic functional principle of electrical contact and diode, control the job order of three-phase electric apparatus contact, what realize that three-phase electric apparatus normally runs connects without arc, the thick-less vane of disjunction and malfunction, significantly simplify the structure of three-phase alternating current control and scheduling co-design electrical equipment, significantly reduce the cost of three-phase control and scheduling co-design electrical equipment, reduce electrical equipment volume, increase substantially electrical endurance and the reliability of operation of electrical equipment.
Implementation of the present invention is: comprise insulation crust J, fixed contact A1, fixed contact A2, fixed contact A3, fixed contact B1, fixed contact B2, fixed contact B3, fixed contact C1, fixed contact C2, microscler moving contact A, microscler moving contact B, microscler moving contact C, diode D1, diode D2, interphase insulating baffle plate L, electromagnetic and mechanical actuating mechanism E, the insulation moving contact rack K of electromagnetic and mechanical actuating mechanism E and single-chip computer control system I;
It is characterized in that: described fixed contact A1, fixed contact A2, fixed contact A3, fixed contact B1, fixed contact B2, fixed contact B3, fixed contact C1, fixed contact C2 is arranged on the diverse location of insulation crust J respectively, fixed contact A1, fixed contact A2, fixed contact A3 point-blank, fixed contact B1, fixed contact B2, fixed contact B3 on Article 2 straight line, fixed contact C1, fixed contact C2 is on the 3rd straight line, and three straight lines differ about 120 °, microscler moving contact A, microscler moving contact B, microscler moving contact C is arranged on the diverse location of insulation moving contact rack K of electromagnetic and mechanical actuating mechanism E respectively, the corresponding fixed contact A1 of microscler moving contact A, fixed contact A2, the corresponding fixed contact B1 of fixed contact A3, microscler moving contact B, fixed contact B2, the corresponding fixed contact C1 of fixed contact B3, microscler moving contact C, fixed contact C2, diode D1 and fixed contact A1, A2 is in parallel, diode D2 and fixed contact B1, B2 is in parallel, three interphase insulating baffle plate L are mutually 120 ° and are arranged on insulation crust J, respectively three-phase contact is separated, electromagnetic and mechanical actuating mechanism E is received in the control output end of single-chip computer control system I, with insulation moving contact rack K on electromagnetic and mechanical actuating mechanism E, first-phase power supply Y1 connects with fixed contact A3, and second-phase power supply Y2 connects with fixed contact B3, third phase power supply Y3 connects with fixed contact C2, microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts, fixed contact A1, fixed contact B1 and fixed contact C1 receives three inputs of load F, and insulation moving contact rack K can along axial-movement in insulation crust J, when a circuit is open, and microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts, when circuit is connected completely, and microscler moving contact A and fixed contact A1, fixed contact A2, fixed contact A3 closes, microscler moving contact B and fixed contact B1, fixed contact B2, fixed contact B3 closes, microscler moving contact C and fixed contact C1, fixed contact C2 closes.
During switch connection, single-chip computer control system drives the insulation moving contact rack of electromagnetic and mechanical actuating mechanism after detecting voltage or current signal by electromagnetic and mechanical actuating mechanism, insulation moving contact rack drives three microscler moving contacts, microscler moving contact C elder generation and fixed contact C1 are without arc contacts, when two diodes all meet the condition of not conducting, two microscler moving contact A, microscler moving contact B respectively with fixed contact A2, fixed contact B2 contacts, because circuit no current passes through, the two is without arc contacts, when two diodes all meet the condition of conducting, microscler moving contact A, microscler moving contact B respectively with fixed contact A1, fixed contact B1 contacts, due to diode current flow, the two is without arc contacts, complete three-phase circuit to connect without arc.
During switch disjunction, single-chip computer control system drives the insulation moving contact rack of electromagnetic and mechanical actuating mechanism after detecting voltage or current signal by electromagnetic and mechanical actuating mechanism, when two diodes all meet the condition of conducting, moving contact rack drives three microscler moving contacts, microscler moving contact A, microscler moving contact B respectively with fixed contact A1, fixed contact B1 disengages, due to diode current flow, the two disconnects without electric arc, when two diodes all meet the condition of not conducting, moving contact rack drives three microscler moving contacts, microscler moving contact A, microscler moving contact B respectively with fixed contact A2, fixed contact B2 disconnects, because circuit no current passes through, the two disconnects without electric arc, insulation moving contact rack continues motion, because A and B disconnects mutually, microscler moving contact C and fixed contact C1 disconnects without arc, insulation moving contact rack drives three microscler moving contacts to get back to home position, microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts.
The present invention compared with prior art; the present invention adopts unique three-phase contact system integral structure and technology; propose completely novel three-phase integratedization and exchange thinking without arc electrical equipment and scheme; realize that three-phase electric apparatus normally runs connect without arc, the thick-less vane of disjunction and malfunction; significantly simplify the structure of three-phase alternating current control and scheduling co-design electrical equipment, significantly reduce the cost of three-phase control and scheduling co-design electrical equipment; reduce electrical equipment volume, increase substantially electrical endurance and the reliability of operation of electrical equipment.
Accompanying drawing explanation
Fig. 1 is the off-state circuit diagram of the embodiment of the present invention one.
Fig. 2 is the centre position circuit diagram of the embodiment of the present invention one.
Fig. 3 is the on-state circuit diagram of the embodiment of the present invention one.
Fig. 4 is the arc interphase insulating baffle plate schematic diagram of the embodiment of the present invention one.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
As shown in Figure 1, the present embodiment provides a kind of three-phase integratedization to exchange without arc electrical equipment, comprises; The insulation moving contact rack K of insulation crust J, fixed contact A1, fixed contact A2, fixed contact A3, fixed contact B1, fixed contact B2, fixed contact B3, fixed contact C1, fixed contact C2, microscler moving contact A, microscler moving contact B, microscler moving contact C, diode D1, diode D2, interphase insulating baffle plate L, electromagnetic and mechanical actuating mechanism E, electromagnetic and mechanical actuating mechanism E and single-chip computer control system I;
It is characterized in that: described fixed contact A1, fixed contact A2, fixed contact A3, fixed contact B1, fixed contact B2, fixed contact B3, fixed contact C1, fixed contact C2 is arranged on the diverse location of insulation crust J respectively, fixed contact A1, fixed contact A2, fixed contact A3 point-blank, fixed contact B1, fixed contact B2, fixed contact B3 on another straight line, fixed contact C1, again point-blank, three straight lines differ about 120 °, microscler moving contact A to fixed contact C2, microscler moving contact B, microscler moving contact C is arranged on the diverse location of insulation moving contact rack K of electromagnetic and mechanical actuating mechanism E respectively, the corresponding fixed contact A1 of microscler moving contact A, fixed contact A2, the corresponding fixed contact B1 of fixed contact A3, microscler moving contact B, fixed contact B2, the corresponding fixed contact C1 of fixed contact B3, microscler moving contact C, fixed contact C2, diode D1 and fixed contact A1, A2 is in parallel, diode D2 and fixed contact B1, B2 is in parallel, diode D1 is in parallel with fixed contact A1, diode D2 is in parallel with fixed contact B1, and three interphase insulating baffle plate L are mutually 120 ° and are arranged on insulation crust J, are separated by three-phase contact respectively, electromagnetic and mechanical actuating mechanism E is received in the control output end of single-chip computer control system I, with insulation moving contact rack K on electromagnetic and mechanical actuating mechanism E, first-phase power supply Y1 connects with fixed contact A3, and second-phase power supply Y2 connects with fixed contact B3, third phase power supply Y3 connects with fixed contact C2, microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts, fixed contact A1, fixed contact B1 and fixed contact C1 receives three inputs of load F, and insulation moving contact rack K can along axial-movement in insulation crust J, when a circuit is open, and microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts, when circuit is connected completely, and microscler moving contact A and fixed contact A1, fixed contact A2, fixed contact A3 closes, microscler moving contact B and fixed contact B1, fixed contact B2, fixed contact B3 closes, microscler moving contact C and fixed contact C1, fixed contact C2 closes.
During switch connection, single-chip computer control system drives the insulation moving contact rack of electromagnetic and mechanical actuating mechanism after detecting voltage or current signal by electromagnetic and mechanical actuating mechanism, insulation moving contact rack drives three microscler moving contacts, microscler moving contact C elder generation and fixed contact C1 are without arc contacts, when two diodes all meet the condition of not conducting, two microscler moving contact A, microscler moving contact B respectively with fixed contact A2, fixed contact B2 contacts, because circuit no current passes through, the two is without arc contacts, when two diodes all meet the condition of conducting, microscler moving contact A, microscler moving contact B respectively with fixed contact A1, fixed contact B1 contacts, due to diode current flow, the two is without arc contacts, complete three-phase circuit to connect without arc.
During switch disjunction, single-chip computer control system drives the insulation moving contact rack of electromagnetic and mechanical actuating mechanism after detecting voltage or current signal by electromagnetic and mechanical actuating mechanism, when two diodes all meet the condition of conducting, moving contact rack drives three microscler moving contacts, microscler moving contact A, microscler moving contact B respectively with fixed contact A1, fixed contact B1 disengages, due to diode current flow, the two disconnects without electric arc, when two diodes all meet the condition of not conducting, moving contact rack drives three microscler moving contacts, microscler moving contact A, microscler moving contact B respectively with fixed contact A2, fixed contact B2 disconnects, because circuit no current passes through, the two disconnects without electric arc, insulation moving contact rack continues motion, because A and B disconnects mutually, microscler moving contact C and fixed contact C1 disconnects without arc, insulation moving contact rack drives three microscler moving contacts to get back to home position, microscler moving contact A, microscler moving contact B, microscler moving contact C respectively with fixed contact A3, fixed contact B3, fixed contact C2 contacts.
As shown in Figure 2, a kind of three-phase integratedization exchanges without arc electrical equipment, it is only the centre position of the invention work shown in Fig. 1, it is characterized in that: described microscler moving contact A and fixed contact A2, fixed contact A3 are closed, microscler moving contact B and fixed contact B2, fixed contact B3 are closed, and microscler moving contact C and fixed contact C1, fixed contact C2 are closed.
As shown in Figure 3, a kind of three-phase integratedization exchanges without arc electrical equipment, it is only the on-position of the invention work shown in Fig. 1, it is characterized in that: described microscler moving contact A and fixed contact A1, fixed contact A2, fixed contact A3 close, microscler moving contact B and fixed contact B1, fixed contact B2, fixed contact B3 are closed, and microscler moving contact C and fixed contact C1, fixed contact C2 are closed.
As shown in Figure 4, in the present embodiment, interphase insulating baffle plate surface is in various arc, and can be planar shaped, can be also arc, and not as limit, object increases alternate creepage distance.
In one embodiment of the invention, the spacing between the spacing between described first fixed contact A1, the second fixed contact A2, the 3rd fixed contact A3 and the 4th fixed contact B1, the 5th fixed contact B2, the 6th fixed contact B3 can be equal, also can be unequal.
Described insulation crust J and electromagnetic and mechanical actuating mechanism E is circular, triangle or rectangle with the cross section of the moving contact rack K that insulate.All contact materials can be that silver based contact material, copper material or copper apply silver.Described insulation crust (J) can be integrated with interphase insulating baffle plate (L).
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (6)
1. three-phase integratedization exchanges without arc electrical equipment, comprise insulation crust (J), first fixed contact (A1), second fixed contact (A2), 3rd fixed contact (A3), 4th fixed contact (B1), 5th fixed contact (B2), 6th fixed contact (B3), 7th fixed contact (C1), 8th fixed contact (C2), first microscler moving contact (A), second microscler moving contact (B), 3rd microscler moving contact (C), first diode (D1), second diode (D2), interphase insulating baffle plate (L), electromagnetic and mechanical actuating mechanism (E), the insulation moving contact rack (K) of electromagnetic and mechanical actuating mechanism (E) and single-chip computer control system (I),
It is characterized in that: described first fixed contact (A1), second fixed contact (A2), 3rd fixed contact (A3), 4th fixed contact (B1), 5th fixed contact (B2), 6th fixed contact (B3), 7th fixed contact (C1), 8th fixed contact (C2) is arranged on the diverse location of insulation crust (J) respectively, the first fixed contact (A1), second fixed contact (A2), 3rd fixed contact (A3) point-blank, the 4th fixed contact (B1), 5th fixed contact (B2), 6th fixed contact (B3) on Article 2 straight line, the 7th fixed contact (C1), 8th fixed contact (C2) is on Article 3 straight line, and three straight lines differ about 120 °, the first microscler moving contact (A), second microscler moving contact (B), 3rd microscler moving contact (C) is arranged on the diverse location of insulation moving contact rack (K) of electromagnetic and mechanical actuating mechanism (E) respectively, corresponding first fixed contact (A1) of the first microscler moving contact (A), second fixed contact (A2), 3rd fixed contact (A3), corresponding 4th fixed contact (B1) of the second microscler moving contact (B), 5th fixed contact (B2), 6th fixed contact (B3), corresponding 7th fixed contact (C1) of the 3rd microscler moving contact (C), 8th fixed contact (C2), the first diode (D1) and the first fixed contact (A1), second fixed contact (A2) is in parallel, the second diode (D2) and the 4th fixed contact (B1), 5th fixed contact (B2) is in parallel, three interphase insulating baffle plates (L) are mutually 120 ° and are arranged on insulation crust (J), respectively three-phase contact is separated, electromagnetic and mechanical actuating mechanism (E) is received in the control output end of single-chip computer control system (I), with insulation moving contact rack (K) in electromagnetic and mechanical actuating mechanism (E), first-phase power supply (Y1) connects with the 3rd fixed contact (A3), second-phase power supply (Y2) connects with the 6th fixed contact (B3), third phase power supply (Y3) connects with the 8th fixed contact (C2), the first microscler moving contact (A), second microscler moving contact (B), 3rd microscler moving contact (C) respectively with the 3rd fixed contact (A3), 6th fixed contact (B3), 8th fixed contact (C2) contact, the first fixed contact (A1), 4th fixed contact (B1) and the 7th fixed contact (C1) receive three inputs of load (F), and insulation moving contact rack (K) can along axial-movement in insulation crust (J), when a circuit is open, and the first microscler moving contact (A), second microscler moving contact (B), 3rd microscler moving contact (C) respectively with the 3rd fixed contact (A3), 6th fixed contact (B3), 8th fixed contact (C2) contact, when circuit is connected completely, the first microscler moving contact (A) and the first fixed contact (A1), second fixed contact (A2), 3rd fixed contact (A3) closes, the second microscler moving contact (B) and the 4th fixed contact (B1), 5th fixed contact (B2), 6th fixed contact (B3) closes, the 3rd microscler moving contact (C) and the 7th fixed contact (C1), 8th fixed contact (C2) closes.
2. three-phase integratedization according to claim 1 exchanges without arc electrical equipment, it is characterized in that: the spacing between the spacing between described first fixed contact (A1), the second fixed contact (A2), the 3rd fixed contact (A3) and the 4th fixed contact (B1), the 5th fixed contact (B2), the 6th fixed contact (B3) can be equal, also can be unequal.
3. exchange without arc electrical equipment with three-phase integratedization according to claim 2 according to claim 1, it is characterized in that: the upper cross section with the moving contact rack (K) that insulate of described insulation crust (J) and electromagnetic and mechanical actuating mechanism (E) is circle, triangle or rectangle.
4. three-phase integratedization according to claim 1,2 or 3 exchanges without arc electrical equipment, it is characterized in that: all contact materials are that silver based contact material, copper material or copper apply silver.
5. three-phase integratedization according to claim 1,2 or 3 exchanges without arc electrical equipment, it is characterized in that: described insulation crust (J) is integrated with interphase insulating baffle plate (L).
6. three-phase integratedization according to claim 1,2 or 3 exchanges without arc electrical equipment, it is characterized in that: the surface of interphase insulating baffle plate L can be planar shaped, also can be arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561028.2A CN104269294B (en) | 2014-10-21 | 2014-10-21 | Three-phase integratedization exchanges without arc electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561028.2A CN104269294B (en) | 2014-10-21 | 2014-10-21 | Three-phase integratedization exchanges without arc electrical equipment |
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| Publication Number | Publication Date |
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| CN104269294A true CN104269294A (en) | 2015-01-07 |
| CN104269294B CN104269294B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410561028.2A Active CN104269294B (en) | 2014-10-21 | 2014-10-21 | Three-phase integratedization exchanges without arc electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028532A (en) * | 2015-09-14 | 2018-05-11 | 株式会社自动网络技术研究所 | Electrifying system and male terminal |
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| WO2001037300A1 (en) * | 1999-11-18 | 2001-05-25 | Abb Ab | An electric switching device |
| CN1446365A (en) * | 2000-06-07 | 2003-10-01 | Abb股份有限公司 | Method and apparatus for controlling electric switching device |
| CN1549289A (en) * | 2003-05-15 | 2004-11-24 | 福州大学 | AC non-arc switch electric appliance |
| CN202454465U (en) * | 2011-12-12 | 2012-09-26 | 陕西博华高低压开关成套设备制造有限公司 | Arc-free switch equipment |
| CN204189673U (en) * | 2014-10-21 | 2015-03-04 | 福州大学 | Three-phase integratedization exchanges without arc electrical equipment |
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2014
- 2014-10-21 CN CN201410561028.2A patent/CN104269294B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001037300A1 (en) * | 1999-11-18 | 2001-05-25 | Abb Ab | An electric switching device |
| CN1446365A (en) * | 2000-06-07 | 2003-10-01 | Abb股份有限公司 | Method and apparatus for controlling electric switching device |
| CN2428852Y (en) * | 2000-07-01 | 2001-05-02 | 福州大学 | Intelligent hybrid ac. contactor |
| CN1549289A (en) * | 2003-05-15 | 2004-11-24 | 福州大学 | AC non-arc switch electric appliance |
| CN202454465U (en) * | 2011-12-12 | 2012-09-26 | 陕西博华高低压开关成套设备制造有限公司 | Arc-free switch equipment |
| CN204189673U (en) * | 2014-10-21 | 2015-03-04 | 福州大学 | Three-phase integratedization exchanges without arc electrical equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108028532A (en) * | 2015-09-14 | 2018-05-11 | 株式会社自动网络技术研究所 | Electrifying system and male terminal |
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| CN104269294B (en) | 2016-05-04 |
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