WO1995000962A1 - Non-arc discharge device - Google Patents
Non-arc discharge device Download PDFInfo
- Publication number
- WO1995000962A1 WO1995000962A1 PCT/CN1994/000043 CN9400043W WO9500962A1 WO 1995000962 A1 WO1995000962 A1 WO 1995000962A1 CN 9400043 W CN9400043 W CN 9400043W WO 9500962 A1 WO9500962 A1 WO 9500962A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thyristor
- arc
- discharge device
- bridge switch
- bridge
- Prior art date
Links
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
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
Definitions
- the invention relates to a bridge switch arc-free discharge device formed by using a thyristor to make an AC circuit on-off without arcing.
- the purpose of the present invention is to overcome the shortcomings in the prior art mentioned above and provide an arc-free discharge device with a simple structure, strong adaptability, reliability and high efficiency.
- the arc-free discharge device of the present invention includes a discharge circuit and a trigger circuit formed by connecting a bridge switch input and output static contact, a moving contact, a unidirectional or bidirectional thyristor and a crystal diode.
- the special feature of the present invention is that the thyristor gate in the discharge circuit is connected to the moving contact of the bridge switch. During the on-off process of the bridge switch, an instantaneous voltage will be generated between the moving contact and the static contact. Use this voltage Triggering the thyristor opens the discharge loop formed by the contacts and the thyristor, so that the arc is no longer generated.
- a unidirectional thyristor when a unidirectional thyristor is used, after the anode and cathode of two unidirectional thyristors are anti-parallel, both ends are respectively connected with the input and output static contacts of the bridge switch to form a discharge circuit.
- the gates of the two unidirectional thyristors are respectively connected in series with a crystal diode, and the anodes of the two crystal diodes are connected in parallel with the moving contacts of the bridge switch to form a thyristor trigger circuit.
- the first and second anodes of a bidirectional thyristor are respectively connected to the bridge switch input and output static contacts to form a discharge circuit.
- the bidirectional thyristor gate is connected with the bridge-type switch moving contact to form a trigger circuit.
- the arc-free discharge device of the present invention has simple structure, low cost, easy manufacture, wide range of thyristor gate parameter, reliable operation, long service life and strong adaptability.
- the advantages can be widely used in contactors, circuit breakers, starters, relays, controllers and other AC electrical switch circuits. Brief description of the drawings
- FIG. 1 is a schematic structural diagram of an arc-free discharge device of an AC contactor in the prior art.
- FIG. 2 is a schematic structural diagram of a specific embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a second embodiment of the present invention. Best way to implement this method
- FIG. 2 is a preferred embodiment of the present invention, in which the thyristor T T is connected in parallel to both ends of the static contact of the bridge switch and 0: 3 . Its role is to bypass the arc current, and the columns ⁇ and I i used can be 20A / 1000VKP ordinary thyristors.
- Diode DD 2 are respectively connected to the cathode 1 ;, gate 12, the parallel spring t anode connected to the movable contact of the bridge switches.
- the instantaneous voltage generated between the moving contact and the static contact 2 or (: 3 triggers the thyristor or the 0 2 used can be, for example, a 1N4007 type ordinary rectifier diode.
- ⁇ (: 2 and (: The on-off current capacity of the bridge switch constituted by 3 is 40A / 380V.
- the working process is as follows: ⁇ When the bridge switch is on, a relatively static contact (: 2 or 0: instantaneous voltage 3. this triggering voltage or by 1 or 1 and 2 into conduction, so that the arc current bypass. DETAILED 1 ⁇ 1 and the "alarm 2 which only crystal turns on, the switch is turned on depending on the instant bridge Which thyristor is subject to forward voltage. After the bridge switch is closed, the turned-on thyristor ⁇ 2 passive contact is turned off by short-circuiting. At this time, ⁇ , D ⁇ ⁇ T 2 are almost at It will stop working at the same potential.
- Fig. 3 is that a K S bidirectional thyristor replaces the unidirectional thyristor T t in Fig. 2 and its working process is basically the same as the embodiment described above.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Relay Circuits (AREA)
Abstract
The present invention related to a discharge device without arc generation during when the circuit is open/closed, wherein a discharge circuit comprising of contacts and thyratrons is conducted by a instantaneous voltage formed by the open/closed procedure. The device is simple in structure, in low cost and reliable. It is widely useful in a contactor, breaker, starter, relay, controller and other AC electrical devices.
Description
开关电器中的无弧放电装置 技术领域 TECHNICAL FIELD
本发明涉及一种利用晶闸管形成可使交流电路通断过程无电弧的桥 式开关无弧放电装置。 背景技术 The invention relates to a bridge switch arc-free discharge device formed by using a thyristor to make an AC circuit on-off without arcing. Background technique
在 1992年 10月机械工业出版社出版的 《低压电器设计手册》 第 548 页上公开了一种交流接触器无弧放电装置（如附图 1 所示）。 该装置由电 感器构成晶闸管门极触发电路。 其缺点在于结构复杂、 需附加保护电路 以及在触头闭合期间晶闸管门极一直存在触发电流和被控电流的大小受 到限制等。 An arc-free discharge device for AC contactors was disclosed on page 548 of the "Design Manual for Low-Voltage Electrical Appliances" published by the Machinery Industry Press in October 1992 (see Figure 1). The device consists of a sensor to form a thyristor gate trigger circuit. The disadvantages are that the structure is complicated, additional protection circuits are needed, and the trigger current and controlled current are always limited in the thyristor gate during the contact closing period.
在 1989年 3月 8日中国专利公报中还公开 7申请号为 88211900. 1的 " 一种无弧放电装置" 。 其装置是由双向晶闸管、 电容器、 整流器和变压 器等电器件組成。 其缺点也在于结构复杂并且适应性受到限制。 发明的公开 In Chinese Patent Gazette on March 8, 1989, 7 "an arc-free discharge device" with application number 88211 9 0. 1 is also disclosed. Its device is composed of electric devices such as bidirectional thyristor, capacitor, rectifier and transformer. The disadvantage is that the structure is complex and the adaptability is limited. Disclosure of invention
本发明的目的在于克服上述现有技术中的缺点， 提供一种结构筒单、 适应性强、 可靠高效的无弧放电装置。 The purpose of the present invention is to overcome the shortcomings in the prior art mentioned above and provide an arc-free discharge device with a simple structure, strong adaptability, reliability and high efficiency.
上述目的可以通过本发明的无弧放电装置来达到： The above object can be achieved by the arc-free discharge device of the present invention:
本发明的无弧放电装置， 包括一由桥式开关输入、 输出静触头、 动 触头， 单向或双向晶闸管和晶体二极管联接形成的放电回路和触发回路。 本发明的特别之处在于放电回路中的晶闸管门极与桥式开关的动触头相 联接， 桥式开关在通断过程中， 动触头与静触头间将产生瞬时电压， 利 用此电压触发晶闸管， 启通由触头， 晶闸管所形成的放电回路， 从而使 得电弧不再产生。 具体地讲， 在采用单向晶闸管时， 由两支单向晶闸管 的阳阴极反并联后， 两端分别与桥式开关的输入、 输出静触头联接构成 放电回路。 两支单向晶闸管的门极分别各串联一支晶体二极管， 两支晶 体二极管的阳极并联后与桥式开关的动触头相联接构成晶闸管触发回路。 当采用双向晶闸管时， 由一支双向晶闸管的第一、 第二阳极分别与桥式 开关输入、 输出静触头相联接构成放电回路。 双向晶闸管门极与桥式开 关动触头相联接构成触发回路。 The arc-free discharge device of the present invention includes a discharge circuit and a trigger circuit formed by connecting a bridge switch input and output static contact, a moving contact, a unidirectional or bidirectional thyristor and a crystal diode. The special feature of the present invention is that the thyristor gate in the discharge circuit is connected to the moving contact of the bridge switch. During the on-off process of the bridge switch, an instantaneous voltage will be generated between the moving contact and the static contact. Use this voltage Triggering the thyristor opens the discharge loop formed by the contacts and the thyristor, so that the arc is no longer generated. Specifically, when a unidirectional thyristor is used, after the anode and cathode of two unidirectional thyristors are anti-parallel, both ends are respectively connected with the input and output static contacts of the bridge switch to form a discharge circuit. The gates of the two unidirectional thyristors are respectively connected in series with a crystal diode, and the anodes of the two crystal diodes are connected in parallel with the moving contacts of the bridge switch to form a thyristor trigger circuit. When a bidirectional thyristor is used, the first and second anodes of a bidirectional thyristor are respectively connected to the bridge switch input and output static contacts to form a discharge circuit. The bidirectional thyristor gate is connected with the bridge-type switch moving contact to form a trigger circuit.
本发明的无弧放电装置与现有技术相比具有结构简单、 成本低廉、 制造容易、 晶闸管门极参数范围宽、 工作可靠、 使用寿命长和适应性强
的优点， 可广泛应用于接触器、 断路器、-起动器、 继电器、 控制器等交 流电器开关电路中。 附图的简要说明 Compared with the prior art, the arc-free discharge device of the present invention has simple structure, low cost, easy manufacture, wide range of thyristor gate parameter, reliable operation, long service life and strong adaptability. The advantages can be widely used in contactors, circuit breakers, starters, relays, controllers and other AC electrical switch circuits. Brief description of the drawings
附图的图面说明如下： The drawings are illustrated as follows:
图 1 是已有技术中的一种交流接触器无弧放电装置结构示意图。 图 2是本发明具体实施例之一结构示意图。 FIG. 1 is a schematic structural diagram of an arc-free discharge device of an AC contactor in the prior art. FIG. 2 is a schematic structural diagram of a specific embodiment of the present invention.
图 3 是本发明具体实施例之二结构示意图。 实现本方法的最佳方式 FIG. 3 is a schematic structural diagram of a second embodiment of the present invention. Best way to implement this method
下面结合附图所示具体实施例对本发明作进一步说明： The present invention is further described below with reference to specific embodiments shown in the accompanying drawings:
图 2 是本发明的最佳实施例， 其中晶闸管 T Τ 并联后接在桥式 开关的静触头两端 和0：3上。 其作用是旁路电弧电流， 所用的 ^、 I i列 如可为 20A/1000VKP型普通晶闸管。 二极管 D D2阴极分别接在 1；、 12门 极上， 阳极并联后通过弹簧 t接在桥式开关的动触头 上。 当触头动作 时， 动触头 ς与静触头 2或(：3间产生的瞬时电压触发晶闸 或 所用的 02例如可为 1N4007型普通整流二极管。 由 ς、 （：2和(：3构成的 桥式开关的通断电流能力为 40A/380V。 其工作过程为. · 当桥式开关在接 通过程中， 在动触头 ς上将产生相对静触头 (：2或0：3的瞬时电压。 此电压 通过 及 或 触发 1或12使其导通， 从而将电弧电流旁路。 具体 1\和1"2 哪只晶闹管导通， 则视桥式开关接通瞬间哪只晶闸管承受正向电压而定。 在桥式开关处于闭合状态后， 已导通的晶闹管 Ί Τ2被动触头 短路而 关断， 此时 ^、 D^ ^ T2由于处在几乎同一电位上而停止工作。 当桥式 开关在分断过程中， 在动触头^上将产生相对 C ¾C3的瞬时电压， 此电 压通过 ^或 触发 1\或1"2使其导通， 从而将电弧电流旁路。 具体 ^、 T2^ 只晶闸管导通， 则视桥式开关接通瞬间哪只晶闸管承受正向电压而定， 在桥式开关完全分断后， Τ Τ2失去触发信号并在半个周波内自然过零关 断。 至此， 一个工作过程结束。 ^和 的另一作用是防止在！；或！^处于关断 状态时， 通过门极漏电误导通。 FIG. 2 is a preferred embodiment of the present invention, in which the thyristor T T is connected in parallel to both ends of the static contact of the bridge switch and 0: 3 . Its role is to bypass the arc current, and the columns ^ and I i used can be 20A / 1000VKP ordinary thyristors. Diode DD 2 are respectively connected to the cathode 1 ;, gate 12, the parallel spring t anode connected to the movable contact of the bridge switches. When the contact moves, the instantaneous voltage generated between the moving contact and the static contact 2 or (: 3 triggers the thyristor or the 0 2 used can be, for example, a 1N4007 type ordinary rectifier diode. By ς, (: 2 and (: The on-off current capacity of the bridge switch constituted by 3 is 40A / 380V. The working process is as follows: · When the bridge switch is on, a relatively static contact (: 2 or 0: instantaneous voltage 3. this triggering voltage or by 1 or 1 and 2 into conduction, so that the arc current bypass. DETAILED 1 \ 1 and the "alarm 2 which only crystal turns on, the switch is turned on depending on the instant bridge Which thyristor is subject to forward voltage. After the bridge switch is closed, the turned-on thyristor 闹2 passive contact is turned off by short-circuiting. At this time, ^, D ^ ^ T 2 are almost at It will stop working at the same potential. When the bridge switch is in the breaking process, an instantaneous voltage relative to C ¾C 3 will be generated on the moving contact ^. This voltage will be turned on by ^ or triggering 1 \ or 1 " 2 so that the arc current bypass specifically ^, T 2 ^ thyristor is turned on, depending on the thyristor bridge switch which is turned on instantly bear Depending on the voltage, after interrupting the full bridge switching, Τ Τ 2 lost trigger signal and the zero crossing of the half cycle NATURAL off point, and a working process ends ^ Another role is to prevent the;.! Or ! ^ When in the off state, it is turned on by gate leakage.
图 3是由一只 K S双向晶闹管替代图 2中的单向晶闸管 T t和 其工作 过程与上述的实施例基本相同。
Fig. 3 is that a K S bidirectional thyristor replaces the unidirectional thyristor T t in Fig. 2 and its working process is basically the same as the embodiment described above.
Claims
- 权利要求书 1. 开关电路中的无弧放电装置， -Claims 1. Arc-free discharge devices in switching circuits,
其特征在于 包括一个由桥式开关静触头和至少一个晶闸管所組成 的放电回路， 一个由桥式开关动触头和至少一个二极管所組成触发回路; 利用桥式开关在通断过程中所产生的瞬时电压触发晶闸管， 导通放电回 路， 从而将电弧电流旁路。 It is characterized by including a discharge circuit composed of a bridge switch static contact and at least one thyristor, a trigger circuit composed of a bridge switch moving contact and at least one diode; the use of a bridge switch generated during the on-off process The instantaneous voltage triggers the thyristor and turns on the discharge circuit, thereby bypassing the arc current.
2. 如 利要求 1所述的无弧放电装置， 2. The arc-free discharge device according to claim 1,
其特征在于 所说的放电回路， 包括两个晶闸管 ^和^ 将 1和12 反串联以后接在桥式开关的静触头两端 C2和 C3上。 Wherein said discharge circuit comprising two thyristors ^ and ^ C after both ends of the fixed contact 1 and 12 in anti-series connected switches of the bridge 2 and C 3.
3. 如权利要求 2所说的无弧放电装置， 3. The arc-free discharge device according to claim 2,
其特征在于 所说的触发电路包括两个晶体二极管 和 ^和^ 的阴极分别接在 "^和！^的门极上， 和 的阳极并联通过一个弹簧接在 桥式开关的动触头 上。 It is characterized in that the trigger circuit includes two crystal diodes and the cathodes of ^ and ^ are respectively connected to the gates of "^ and! ^", And the anodes of and are connected in parallel to a moving contact of a bridge switch through a spring.
4. 如权利要求 1所说的无弧放电装置， 4. The arc-free discharge device according to claim 1,
其特征在于 所说的晶闸管的一只 KS双向晶闸管。
It is characterized by a KS bidirectional thyristor of the thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU68405/94A AU6840594A (en) | 1993-06-17 | 1994-05-31 | Non-arc discharge device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93216126U CN2166514Y (en) | 1993-06-17 | 1993-06-17 | Non-arc discharging apparatus for AC contactor |
| CN93216126.X | 1993-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995000962A1 true WO1995000962A1 (en) | 1995-01-05 |
Family
ID=5005298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN1994/000043 WO1995000962A1 (en) | 1993-06-17 | 1994-05-31 | Non-arc discharge device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN2166514Y (en) |
| AU (1) | AU6840594A (en) |
| WO (1) | WO1995000962A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10027109B2 (en) | 2012-12-18 | 2018-07-17 | Thermik Geraetebau Gmbh | Thermal protection circuit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745883B (en) * | 2014-01-08 | 2015-10-14 | 辽宁工程技术大学 | A kind of combined type Arcless AC Contactor with transistors breakdown diagnostic function |
| CN106847581B (en) * | 2016-01-24 | 2018-03-23 | 广州市金矢电子有限公司 | Electronic arc eliminating feedback device and arc-control device |
| CN106531554B (en) * | 2016-11-08 | 2019-03-12 | 仲大卫 | Thick-less vane device, contactor and the thick-less vane method of contactor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072566A2 (en) * | 1981-08-17 | 1983-02-23 | BROWN, BOVERI & CIE Aktiengesellschaft | Electric switching apparatus with bridging contacts |
-
1993
- 1993-06-17 CN CN93216126U patent/CN2166514Y/en not_active Expired - Fee Related
-
1994
- 1994-05-31 AU AU68405/94A patent/AU6840594A/en not_active Abandoned
- 1994-05-31 WO PCT/CN1994/000043 patent/WO1995000962A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072566A2 (en) * | 1981-08-17 | 1983-02-23 | BROWN, BOVERI & CIE Aktiengesellschaft | Electric switching apparatus with bridging contacts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10027109B2 (en) | 2012-12-18 | 2018-07-17 | Thermik Geraetebau Gmbh | Thermal protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6840594A (en) | 1995-01-17 |
| CN2166514Y (en) | 1994-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3116006B1 (en) | Capacitive coupling-type arc-extinguishing circuit and device | |
| Atmadji et al. | Hybrid switching: A review of current literature | |
| CN113964788B (en) | Bidirectional direct current breaker | |
| WO2019104793A1 (en) | Micro-loss combined mechanical direct current circuit breaker and control method therefor | |
| CN110739167A (en) | DC switch equipment | |
| CN113257597A (en) | Hybrid direct current breaker based on composite current conversion mode and control method thereof | |
| CN105428118A (en) | Arc extinguishing device and non-arc switch | |
| CN111640602A (en) | Multi-fracture direct-current switch equipment with controllable transfer branch oscillation current and control method | |
| CN112803356A (en) | Hybrid direct current breaker with current self-transfer function and control method thereof | |
| Ängquist et al. | VARC–a cost-effective ultrafast DC circuit breaker concept | |
| Takeda et al. | Development of a novel hybrid switch device and application to a solid-state transfer switch | |
| US5247419A (en) | Low voltage switchgear | |
| CN101256907B (en) | Non-arc breaking circuit based on variable capacitance and method thereof | |
| WO2017016501A1 (en) | Inrush-current free switching device and control method thereof | |
| CN111863465B (en) | Double-station circuit breaker, direct-current combined electrical apparatus applying same and working method | |
| WO1995000962A1 (en) | Non-arc discharge device | |
| CN100490043C (en) | Permanent magnet non-arching AC contactor | |
| US3633069A (en) | Alternating current circuit-interrupting system comprising a rectifier shunt path | |
| CN111490518A (en) | Hybrid energy-saving high-speed current limiting device | |
| CN115954829A (en) | Generator outlet circuit breaker | |
| CN107039952B (en) | A kind of breaker and control method of alternating current-direct current hybrid | |
| CN114759532A (en) | Self-charging cut-off direct current breaker and control method thereof | |
| JP3581219B2 (en) | Composite switching device | |
| US3435288A (en) | Circuit interrupting means for a high voltage d-c circuit | |
| GB2221794A (en) | Circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB GE HU JP KP KR KZ LK LU LV MG MN MW NL NO NZ PL PT RO RU SD SE SI SK UA US UZ VN |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| 122 | Ep: pct application non-entry in european phase | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| NENP | Non-entry into the national phase |
Ref country code: CA |