WO2009084503A1 - 直流開閉器 - Google Patents
直流開閉器 Download PDFInfo
- Publication number
- WO2009084503A1 WO2009084503A1 PCT/JP2008/073307 JP2008073307W WO2009084503A1 WO 2009084503 A1 WO2009084503 A1 WO 2009084503A1 JP 2008073307 W JP2008073307 W JP 2008073307W WO 2009084503 A1 WO2009084503 A1 WO 2009084503A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switch
- semiconductor switch
- connection terminal
- contact
- control unit
- Prior art date
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Classifications
-
- 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
- H01H9/548—Electromechanical and static switch connected in series
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor
Definitions
- This type of DC switch includes a body provided with a power connection terminal to which a power source is connected and a load connection terminal to which a load is connected.
- the DC switch includes a mechanical contact inserted between the power connection terminal and the load connection terminal.
- the mechanical contact is composed of a fixed contact and a movable contact that contacts and separates from the fixed contact.
- the DC switch includes an operation handle for manual operation that is detachably attached to the body, and includes an opening / closing mechanism that opens and closes a mechanical contact in accordance with the operation of the operation handle.
- the diode 12 is inserted between the power connection terminal 2a and the load connection terminal 2b so that the anode faces the power connection terminal 2a and the cathode faces the load connection terminal 2b.
- the diode 12 is inserted between the semiconductor switch 11 and the power connection terminal 2a.
- the insertion position of the diode 12 is not limited to this.
- the operation handle 30 is made of an insulating resin material.
- the operation handle 30 is attached to the container body 2 so as to be freely displaceable (in this embodiment, freely rotatable).
- the displacement range (turning range) of the operation handle 30 includes an opening position P1, a position (turning position) P2 rotated by a predetermined angle ⁇ from the opening position P1, and a predetermined angle ⁇ from the opening position P1 (however, It is between the position (completely charged position) P3 rotated by ⁇ > ⁇ ).
- the current detection unit 5 is configured to detect a current value flowing through the contact unit 1 (a current value flowing between the power connection terminal 2a and the load connection terminal 2b) and output the detection result to the control unit 7. Yes.
- the current detection unit 5 can be configured by a current transformer, for example.
- the current detection unit 5 can be configured by a conventionally known current detection unit such as a current detector that detects a current using a voltage across a resistor inserted between the power connection terminal 2a and the contact point 1 or the like.
- the tripping device 6 uses such an operation to remove the movable contact of the mechanical contact 10 from the fixed contact.
- the operation handle 30 is moved to the open position P ⁇ b> 1 by the opening / closing mechanism 3.
- the tripping device 6 is well known in the art and will not be described in detail.
- the control unit 7 is configured using, for example, a CPU or a logic circuit.
- the control unit 7 has a function of controlling a potential applied to the gate of the semiconductor switch 11 and a function of flowing a predetermined current through the coil of the tripping device 6.
- the power supply terminal of the control unit 7 is connected to the output terminal of the power supply unit 9.
- the power source unit 9 is a power source for driving the control unit 7 (power source for supplying power for the control unit 7 to apply a potential to the gate of the semiconductor switch 11 and power for allowing a predetermined current to flow through the coil). is there.
- the power supply unit 9 is composed of a regulator, for example.
- the input terminal of the power supply unit 9 is connected between the semiconductor switch 11 and the fuse 8. That is, the electric power for driving the control unit 7 is drawn from the electric circuit between the semiconductor switch 11 and the power supply connection terminal 2a.
- the control unit 7 is configured to perform on / off control of the semiconductor switch 11 in accordance with the detection result of the position detection unit 4.
- the control unit 7 is configured to control the operation of the semiconductor switch 11 and the tripping device 6 according to the detection result of the current detection unit 5.
- control unit 7 determines that the operation handle 30 has been displaced from the open position P1 to the closing position P2 based on the detection result of the position detection unit 4 when the semiconductor switch 11 is off, the control unit 7 switches the semiconductor switch 11 on. It is configured.
- the control unit 7 determines that the operation handle 30 is displaced toward the open position P1 side based on the detection result of the position detection unit 4 when the semiconductor switch 11 is on, the control unit 7 turns off the semiconductor switch 11. It is configured to switch.
- control unit 7 determines whether or not an overcurrent has occurred based on the detection result of the current detection unit 5. That is, the control unit 7 constitutes an overcurrent determination unit that determines whether or not an overcurrent has occurred based on the detection result of the current detection unit 5. When it is determined that an overcurrent has occurred, the control unit 7 is configured to perform an operation of switching the contact unit 1 off (so-called overcurrent tripping). Here, overload current and short circuit current are taken into consideration as overcurrent. The control unit 7 determines whether or not an overload current or a short-circuit current is generated by comparing the current value detected by the current detection unit 5 with an overcurrent determination threshold value.
- the control unit 7 switches off the contact unit 1 when an overcurrent occurs.
- the control unit 7 is configured to first switch off the semiconductor switch 11 and then turn off the mechanical contact 10 by the trip device 6 when switching the contact unit 1 off.
- the control unit 7 in this embodiment performs instantaneous tripping when a short-circuit current occurs, and performs long-time tripping when an overload current occurs (that is, performs two types of tripping).
- the controller 7 does not necessarily need to perform both trips, and may be configured to perform either instantaneous trip or long-time trip.
- the operation handle 30 may be rotated from the complete closing position P3 to the open position P1.
- the rotation angle of the operating handle 30 decreases from ⁇ . Therefore, the control unit 7 determines that the operation handle 30 is displaced toward the open position P1, and switches the semiconductor switch 11 to OFF. Thereafter, when the operation handle 30 is operated to the open position P1, the mechanical contact 10 is turned off. Therefore, when the contact portion 1 is turned off, the semiconductor switch 11 is turned off before the mechanical contact 10.
- the operation handle 30 is latched by being operated to the open position P1.
- the semiconductor switch 11 is turned on after the mechanical contact 10 is turned on when the contact portion 1 is turned on, that is, at the closing operation (closing operation). Therefore, even if the mechanical contact 10 is turned on, no current flows through the contact portion 1.
- the contact portion 1 is turned off, that is, during the opening operation (opening operation)
- the mechanical contact 10 is turned off after the semiconductor switch 11 is turned off. Therefore, even when the mechanical contact 10 is turned off, no current flows through the contact portion 1.
- the mechanical contact 10 can be forcibly opened by the trip device 6. Therefore, protection from overcurrent can be achieved.
- the semiconductor switch 11 is switched off first so that no current flows through the contact portion 1. Therefore, even in the trip operation, the occurrence of arc at the mechanical contact 10 can be reliably prevented.
- the DC switch of the present embodiment is merely an example, and is not intended to limit the technical scope of the present invention to the configuration of the present embodiment. Therefore, it may be changed without departing from the gist of the present invention. For example, it is not always necessary to prevent the occurrence of arcing at the mechanical contact 10 in either case where the contact portion 1 is turned on or turned off. You may make it prevent generation
- the DC switch of the present embodiment has a function as a circuit breaker because it performs a tripping operation that switches the contact portion 1 off when an overcurrent flows.
- the position detection unit 4 in the present embodiment includes a contact that opens and closes according to the operation of the operation handle 30 as shown in FIGS. 2A and 2B.
- the operation handle 30 in the present embodiment is provided with a first pressing piece 30a for the mechanical contact 10 and a second pressing piece 30b for the position detection unit 4. 2A and 2B, the mechanical contact 10, the operation handle 30, and the position detection unit 4 are illustrated in a simplified manner.
- the mechanical contact 10 in the present embodiment has first and second movable plates 10a and 10b each provided with a pair of contacts (not shown) as shown in FIGS. 2A and 2B.
- the first movable plate 10a is pressed by the first pressing piece 30a so as to be close to the second movable plate 10b.
- the first and second movable plates 10a and 10b are formed in a long plate shape from an elastic metal material. These first and second movable plates 10a and 10b are accommodated in the container 2 so that the following operations can be performed.
- the first movable plate 10a is pressed by the first pressing piece 30a of the operation handle 30 when the operation handle 30 is rotated from the open position P1 to the closing position P2. Accordingly, the first movable plate 10a is displaced so as to approach the second movable plate 10b.
- the contact point of the first movable plate 10a comes into contact with the contact point of the second movable plate 10b with a predetermined contact pressure.
- the first and second movable plates 10a and 10b come into contact immediately before the operation handle 30 is positioned at the closing position P2. That is, when the operation handle 30 is located at the closing position P2, the second movable plate 10b is pressed by the first movable plate 10a.
- the position detection unit 4 allows the pair of contacts to be separated from each other when the operation handle 30 is located in the open position P1 to the closing position P2 (when no load is applied). Open (off) state.
- the position detection unit 4 is in a closed state (ON) in which the pair of contacts are in contact with each other with a predetermined contact pressure.
- the DC supply line Wdc is also used as a DC power feeding path and a communication path.
- communication between devices connected to the DC supply line Wdc is enabled by superimposing a communication signal that transmits data using a high-frequency carrier wave on the DC voltage.
- This technique is similar to a power line carrier technique in which a communication signal is superimposed on an AC voltage in a power line that supplies AC power.
- an information equipment system K101, lighting systems K102 and K105, an entrance system K103, and a residential alarm system K104 are provided as subsystems.
- Each subsystem constitutes an independent distributed system. Therefore, the operation is possible even with the subsystem alone. Further, the subsystem is not limited to the above example.
- the entrance system K103 is composed of a DC device 102 that handles visitors and monitors intruders.
- Any DC device 102 can be connected to the DC outlet 131 and the hooking ceiling 132 described above.
- the DC outlet 131 and the hook ceiling 132 output DC power to the connected DC device 102. Therefore, in the following, when it is not necessary to distinguish between the DC outlet 131 and the hooking ceiling 132, they are referred to as “DC outlets”.
- a connection port (plug-in connection port) into which a contact of the DC device 102 is inserted is opened in the body of the DC outlet.
- the container body holds a contact receiver that directly contacts the contact inserted into the connection port. Therefore, the direct current outlet having such a structure supplies power in a contact manner.
- a communication signal can be transmitted through the DC supply line Wdc. Note that not only the DC device 102 but also a DC outlet is provided with a communication function. The contact is provided directly on the DC device 102 or via a connecting line.
- Each device maintains the relationship of the interlocking operation of the devices. Therefore, the device can operate in an interlocked manner without passing through the home server 116. If the linked operations are related to each other, it becomes possible to turn on or off the lighting fixture that is the device by operating a switch that is the device, for example. In many cases, the association of the interlocking operations is performed within the subsystem, but the association beyond the subsystem is also possible.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
本実施形態の直流開閉器は、図1に示すように、接点部1と、電源接続端子2aおよび負荷接続端子2bが設けられた器体2と、手動操作用の操作ハンドル(操作レバー)30を有する開閉機構部3と、位置検出部4と、電流検出部5と、引外し装置6と、制御部7とを備えている。
本実施形態の直流開閉器では、接点部1の機械接点10と、開閉機構部3と、位置検出部4と、制御部7とが実施形態1と異なっている。なお、本実施形態のその他の構成については実施形態1と同様である。よって、同様の構成については同一の符号を付して図示および説明を省略する。
Claims (7)
- 電源が接続される電源接続端子および負荷が接続される負荷接続端子が設けられた器体と、
前記機械接点を有し、前記電源接続端子と前記負荷接続端子との間に挿入される接点部と、
前記器体に変位自在に取り付けられた手動操作用の操作ハンドルを有し、前記操作ハンドルの操作に応じて前記機械接点を開閉する開閉機構部とを備える直流開閉器において、
前記接点部は、前記機械接点に直列接続された半導体スイッチを有し、
前記器体には、前記操作ハンドルの操作位置を検出する位置検出部と、前記位置検出部の検出結果に基づいて前記半導体スイッチをオンオフ制御する制御部とが収納され、
前記制御部は、前記半導体スイッチがオフであるときに、前記位置検出部の検出結果により前記操作ハンドルが開放位置から投入位置まで変位したと判定すると、前記半導体スイッチをオンに切り替えるように構成されていることを特徴とする直流開閉器。 - 前記制御部は、前記半導体スイッチがオンであるときに、前記位置検出部の検出結果により前記操作ハンドルが前記開放位置に向かって変位していると判定すると、前記半導体スイッチをオフに切り替えるように構成されていることを特徴とする請求項1記載の直流開閉器。
- 前記接点部に流れる電流を検出する電流検出部と、
前記機械接点を強制的に開放させる引外し装置とを備え、
前記制御部は、前記電流検出部で検出された電流と過電流判定用の閾値との比較により、過電流が発生していると判定すると、前記半導体スイッチをオフに切り替えてから、前記引外し装置を動作させるように構成されていることを特徴とする請求項1または2記載の直流開閉器。 - 前記半導体スイッチは、前記機械接点と前記電源接続端子との間に挿入され、
前記制御部の電源端子は、前記半導体スイッチと前記電源接続端子との間の電路に接続されていることを特徴とする請求項1または2記載の直流開閉器。 - 前記半導体スイッチは、前記機械接点と前記電源接続端子との間に挿入され、
前記制御部の電源端子は、前記半導体スイッチと前記電源接続端子との間の電路に接続されていることを特徴とする請求項3記載の直流開閉器。 - 前記半導体スイッチと前記電源接続端子との間に挿入されるヒューズを備えていることを特徴とする請求項4記載の直流開閉器。
- 前記半導体スイッチと前記電源接続端子との間に挿入されるヒューズを備えていることを特徴とする請求項5記載の直流開閉器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/810,296 US8284528B2 (en) | 2007-12-28 | 2008-12-22 | DC switch |
EP08867401.5A EP2234136A4 (en) | 2007-12-28 | 2008-12-22 | DC SWITCH |
CN200880123144.9A CN101919017B (zh) | 2007-12-28 | 2008-12-22 | 直流开关装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-341331 | 2007-12-28 | ||
JP2007341331A JP5038884B2 (ja) | 2007-12-28 | 2007-12-28 | 直流開閉器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009084503A1 true WO2009084503A1 (ja) | 2009-07-09 |
Family
ID=40824217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/073307 WO2009084503A1 (ja) | 2007-12-28 | 2008-12-22 | 直流開閉器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8284528B2 (ja) |
EP (1) | EP2234136A4 (ja) |
JP (1) | JP5038884B2 (ja) |
CN (1) | CN101919017B (ja) |
WO (1) | WO2009084503A1 (ja) |
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WO2012007494A1 (de) * | 2010-07-16 | 2012-01-19 | Magna E-Car Systems Gmbh & Co Og | Überstromschalter, verwendung eines überstromschalters und elektrokraftfahrzeug mit einem überstromschalter |
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JP5106606B2 (ja) | 2010-09-27 | 2012-12-26 | 三菱電機株式会社 | 放電システムおよび電動車両 |
US8810991B2 (en) * | 2010-10-05 | 2014-08-19 | Rockwell Automation Technologies, Inc. | Safety isolation systems and methods for switching DC loads |
JP2013143279A (ja) * | 2012-01-11 | 2013-07-22 | Sony Corp | プラグ、電子機器及びプラグ受け |
EP2690643B1 (en) * | 2012-07-24 | 2015-03-04 | ABB S.p.A. | An improved solid state switching device. |
US9384928B2 (en) | 2012-10-22 | 2016-07-05 | Eaton Coporation | Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit |
US9025298B2 (en) | 2012-10-22 | 2015-05-05 | Eaton Corporation | Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit |
US9831657B2 (en) | 2012-12-19 | 2017-11-28 | Siemens Aktiengesellschaft | Device for switching a direct current in a pole of a DC voltage network |
FR3010584B1 (fr) | 2013-09-12 | 2015-10-02 | Schneider Electric Ind Sas | Appareil auxiliaire pour disjoncteur electrique, systeme electrique comportant un disjoncteur et un tel appareil auxiliaire et procede de determination d'une cause de l'ouverture du disjoncteur a l'aide d'un tel appareil auxiliaire |
WO2015088654A1 (en) * | 2013-12-09 | 2015-06-18 | Eaton Corporation | Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit |
WO2016007164A1 (en) * | 2014-07-10 | 2016-01-14 | Ge Intelligent Platforms, Inc. | Apparatus and method for control of switching circuitry |
MX363868B (es) * | 2015-05-20 | 2019-04-05 | Nissan Motor | Dispositivo de control de suministro de energía y método de control de suministro de energía. |
CN105977964B (zh) * | 2016-05-06 | 2018-11-06 | 沈阳东软医疗系统有限公司 | 一种供电设备 |
US10629391B2 (en) * | 2017-12-21 | 2020-04-21 | Eaton Intelligent Power Limited | Fusible safety disconnect in solid state circuit breakers and combination motor starters |
US10714923B2 (en) * | 2018-11-29 | 2020-07-14 | Analog Devices Internatianal Unlimited Company | Protection device |
US11127552B2 (en) | 2019-04-05 | 2021-09-21 | Eaton Intelligent Power Limited | Hybrid switch assembly and circuit interrupter including the same |
CN110473747B (zh) * | 2019-07-03 | 2021-12-07 | 威胜电气有限公司 | 一种断路器及断路器操作识别方法 |
EP3761335A1 (de) * | 2019-07-04 | 2021-01-06 | Siemens Aktiengesellschaft | Elektronisches schaltgerät |
EP4185879A1 (en) * | 2020-07-24 | 2023-05-31 | Osho Limited | Improved switchboard and aspects of a power distribution system |
FR3123142A1 (fr) * | 2021-05-20 | 2022-11-25 | Schneider Electric Industries Sas | Appareils et systèmes de protection électrique comportant un module de coupure intégré |
FR3123141A1 (fr) * | 2021-05-20 | 2022-11-25 | Schneider Electric Industries Sas | Appareils et systèmes de protection électrique |
DE102021210810A1 (de) * | 2021-09-28 | 2023-03-30 | Siemens Aktiengesellschaft | Schutzschaltgerät und Verfahren |
DE102021210816A1 (de) * | 2021-09-28 | 2023-03-30 | Siemens Aktiengesellschaft | Schutzschaltgerät |
DE102021210814A1 (de) * | 2021-09-28 | 2023-03-30 | Siemens Aktiengesellschaft | Schutzschaltgerät |
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2007
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-
2008
- 2008-12-22 US US12/810,296 patent/US8284528B2/en not_active Expired - Fee Related
- 2008-12-22 EP EP08867401.5A patent/EP2234136A4/en not_active Withdrawn
- 2008-12-22 CN CN200880123144.9A patent/CN101919017B/zh not_active Expired - Fee Related
- 2008-12-22 WO PCT/JP2008/073307 patent/WO2009084503A1/ja active Application Filing
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See also references of EP2234136A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011098374A1 (de) * | 2010-02-10 | 2011-08-18 | Siemens Aktiengesellschaft | Schaltentlastung für einen trennschalter |
CN102754346A (zh) * | 2010-02-10 | 2012-10-24 | 西门子公司 | 用于隔离开关的开关去负荷 |
WO2012007494A1 (de) * | 2010-07-16 | 2012-01-19 | Magna E-Car Systems Gmbh & Co Og | Überstromschalter, verwendung eines überstromschalters und elektrokraftfahrzeug mit einem überstromschalter |
CN103069524A (zh) * | 2010-07-16 | 2013-04-24 | 麦格纳斯太尔电池系统两合公司 | 过流开关,过流开关的使用和带有过流开关的电动车辆 |
Also Published As
Publication number | Publication date |
---|---|
EP2234136A4 (en) | 2013-09-04 |
JP2009163960A (ja) | 2009-07-23 |
CN101919017A (zh) | 2010-12-15 |
CN101919017B (zh) | 2013-06-19 |
US8284528B2 (en) | 2012-10-09 |
EP2234136A1 (en) | 2010-09-29 |
US20100277846A1 (en) | 2010-11-04 |
JP5038884B2 (ja) | 2012-10-03 |
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