WO2011150684A1 - Direct current arc proof circuit and method thereof - Google Patents

Direct current arc proof circuit and method thereof Download PDF

Info

Publication number
WO2011150684A1
WO2011150684A1 PCT/CN2011/000931 CN2011000931W WO2011150684A1 WO 2011150684 A1 WO2011150684 A1 WO 2011150684A1 CN 2011000931 W CN2011000931 W CN 2011000931W WO 2011150684 A1 WO2011150684 A1 WO 2011150684A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
contact
electronic switch
circuit
arcing
Prior art date
Application number
PCT/CN2011/000931
Other languages
French (fr)
Chinese (zh)
Inventor
戴国峰
Original Assignee
江苏艾索新能源股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏艾索新能源股份有限公司 filed Critical 江苏艾索新能源股份有限公司
Publication of WO2011150684A1 publication Critical patent/WO2011150684A1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/6485Electrostatic discharge protection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/53Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the present invention relates to a circuit and method for preventing DC arcing. Background technique
  • the instantaneous value of the current of the alternating current changes periodically with time, so at the zero-crossing point of the current, the current becomes 0, and the arc automatically disappears.
  • the DC current has no current crossing point, it is difficult to extinguish the arc after the arc is generated; the arc will disappear automatically until the two contacts of the connector are separated by a sufficient distance.
  • the arc is a free gas with high temperature and high conductivity. It not only has a great destructive effect on the contacts, but also may cause serious damage to the surrounding people or equipment, and even cause serious disasters such as fire.
  • the DC input voltage is generally between 100 and 1000V, and the current and voltage are much larger than the arc generation conditions.
  • the load may need to be cut off. Therefore, a DC switch with on-load switching capability must be added to the DC input side of the grid-connected inverter.
  • a 20A/1000VDC DC switch is about 1000 yuan. Summary of the invention
  • the object of the present invention is to provide a circuit for preventing DC arcing, which is simple in structure, convenient to use, has few circuit links, and has low cost.
  • Another object of the present invention is to provide a method for preventing DC arcing during plugging and unplugging of a connector, which is simple in method, convenient to use, has few circuit links, and has low cost.
  • the technical solution of the circuit of the present invention is: a circuit for preventing DC arcing, which comprises a connector contact, a main contact, an auxiliary contact, and a connection circuit between the main contact and the auxiliary contact is provided An electronic switch that controls the connection circuit to open or close.
  • the auxiliary contact is disposed at a position that the connector contact must be in contact with before contacting the main contact.
  • the conventional connector is in the form of two contacts, and the technical solution achieves arc elimination by adding an auxiliary contact and an electronic switch.
  • the key is: In the process of plugging the contacts, when the contacts of the connector are connected with the auxiliary contacts, the current flow of the connector turns to the auxiliary current path of the electronic switch, and the circuit realizes arc extinguishing through the loop; In the process of the contact, when the contact of the connector is separated from the main contact, the current flow of the connector is turned to the auxiliary current path of the electronic switch, and the circuit also performs arc suppression through the circuit; when the contact of the connector is When the auxiliary contacts are separated, the electronic switch is turned off and no current is present, so no arc is generated.
  • the technical solution of the method of the present invention is: a method for preventing DC arcing during plugging and unplugging of a connector, the method comprising: electrically connecting an auxiliary contact to a connector main contact through a connecting circuit provided with an electronic switch;
  • the electronic switch can be closed or disconnected at this time;
  • the head end of the connector contact is separated from the connector main contact, during which the electronic switch remains Closed, the current flowing through the connector passes through the connection circuit where the electronic switch is located, thereby preventing the arcing problem when the switch is turned off.
  • the head end of the connector contact is completely separated from the connector auxiliary contact, reaching the initial position, forming a certain physical isolation from the connector auxiliary contact, and the electronic switch remains closed or disconnected.
  • the auxiliary contact is disposed at a position that the connector contact must be in contact with before contacting the main contact.
  • the invention has the advantages that: the invention has simple implementation method, few circuit steps and low cost. DRAWINGS
  • Figure 1 is a schematic view of the application of the present invention (the structure of the present invention is shown in a virtual frame);
  • FIG. 2 FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are schematic diagrams showing steps in the process of plugging and unplugging the connector of the method of the present invention.
  • Embodiment 1 - As shown in FIG. 1, a circuit for preventing DC arcing, comprising a connector contact 1, a main contact 2, an auxiliary contact 3, between the main contact 2 and the auxiliary contact 3
  • the connection circuit is provided with an electronic switch 5 that can control the connection circuit to open or close.
  • the auxiliary contact 3 is disposed at a position that the connector contact 1 must contact before it contacts the main contact 2.
  • the conventional connector is in the form of two contacts, and the present invention achieves arc elimination by adding an auxiliary contact and an electronic switch.
  • the key is: During the process of inserting the contacts, when the contact 1 of the connector is connected with the auxiliary contact 3, the current flow of the connector is turned to the auxiliary current path of the electronic switch 5, and the circuit realizes the arc suppression through the circuit.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a method for preventing DC arcing during plugging and unplugging of a connector comprising electrically connecting an auxiliary contact 3 to a connector main contact 2 through a connecting circuit provided with an electronic switch 5;
  • the auxiliary contact 3 is disposed at a position that the connector contact 1 must come into contact with before the main contact 2.
  • the electronic switch 5 remains open at the beginning of the process of plugging the connector.
  • the electronic switch 5 is closed, and the current flowing through the connector is prevented by the connection circuit in which the electronic switch 5 is located. Pulling arc problem when accessing.
  • the head end of the connector contact 1 is completely separated from the connector auxiliary contact 3, reaching the initial position, forming a certain physical isolation from the connector auxiliary contact 3, at which time the electronic switch 5 remains closed. Or disconnected.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A direct current arc proof circuit and a method for preventing direct current arc in the inserting and pulling course of a connector The direct current arc proof circuit comprises a connector contact (1), a main contact (2) and an assistant contact (3). An electronic switch which controls the circuit connection to open and close is provided in the connection circuit between the main contact and the assistant contact. The assistant contact is located at the position which the connector contact will reach before it reaches the main contact. The direct current arc proof circuit has a simple structure, is convenient to use and has a low cost.

Description

说 明 书  Description
防止直流拉弧的电路及其方法 技术领域  Circuit and method for preventing DC arc pull
本发明涉及一种防止直流拉弧的电路及其方法。 背景技术  The present invention relates to a circuit and method for preventing DC arcing. Background technique
当连接器的两个触点带电分离时,只要电路中电压大于 10〜20V。电流 大于 80〜100mA。 动、 静触头间就可能会出现电弧。 此时触头虽已分开, 但 是电流通过触头间的电弧继续流通。  When the two contacts of the connector are electrically separated, as long as the voltage in the circuit is greater than 10~20V. The current is greater than 80~100mA. Arcing may occur between moving and stationary contacts. At this point the contacts are separated, but the current continues to circulate through the arc between the contacts.
交流电流的电流瞬时值随时间发生周期性变化, 因此在电流的过零点, 电流变为 0, 电弧会自动消失。 但直流电流因为没有电流过零点, 因此, 电 弧产生后, 很难消弧; 一直到连接器的两个触头分开到足够的距离, 电弧 才能自动消失。  The instantaneous value of the current of the alternating current changes periodically with time, so at the zero-crossing point of the current, the current becomes 0, and the arc automatically disappears. However, since the DC current has no current crossing point, it is difficult to extinguish the arc after the arc is generated; the arc will disappear automatically until the two contacts of the connector are separated by a sufficient distance.
电弧是高温高导电率的游离气体, 它不仅对触头有很大的破坏作用, 同时可能对其周边的人身或设备造成严重伤害, 甚至造成火灾等严重灾难。  The arc is a free gas with high temperature and high conductivity. It not only has a great destructive effect on the contacts, but also may cause serious damage to the surrounding people or equipment, and even cause serious disasters such as fire.
大部分的太阳能并网逆变器在实际应用中, 一般直流输入电压均大在 100〜1000V之间, 电流、 电压均远大于电弧的产生条件。 在并网逆变器的 安装、 运行、 维护期间, 可能需要带载切断直流, 因此, 必须在并网逆变 器的直流输入侧, 增加一个具有带载切换能力的直流开关。  In most practical applications of solar grid-connected inverters, the DC input voltage is generally between 100 and 1000V, and the current and voltage are much larger than the arc generation conditions. During the installation, operation and maintenance of the grid-connected inverter, the load may need to be cut off. Therefore, a DC switch with on-load switching capability must be added to the DC input side of the grid-connected inverter.
由于直流灭弧的特殊性, 目前市场上直流的开关非常昂贵, 一个 20A/1000VDC的直流开关大约在 1000元人民币左右。 发明内容  Due to the special nature of DC arc extinguishing, the DC switch on the market is very expensive. A 20A/1000VDC DC switch is about 1000 yuan. Summary of the invention
本发明的目的是: 提供一种防止直流拉弧的电路, 它结构简单, 使用 方便, 电路环节少, 成本低。 本发明的另一个目的是: 提供一种连接器插拔过程中防止直流拉弧的 方法, 它方法简单, 使用方便, 电路环节少, 成本低。 The object of the present invention is to provide a circuit for preventing DC arcing, which is simple in structure, convenient to use, has few circuit links, and has low cost. Another object of the present invention is to provide a method for preventing DC arcing during plugging and unplugging of a connector, which is simple in method, convenient to use, has few circuit links, and has low cost.
本发明电路的技术方案是: 一种防止直流拉弧的电路, 它包括连接器 触头、 主触点、 辅助触点, 所述主触点和辅助触点之间的连接电路上设置 有可控制该连接电路断开或闭合的电子开关。  The technical solution of the circuit of the present invention is: a circuit for preventing DC arcing, which comprises a connector contact, a main contact, an auxiliary contact, and a connection circuit between the main contact and the auxiliary contact is provided An electronic switch that controls the connection circuit to open or close.
所述辅助触点设置于连接器触头与主触点接触之前必会接触到的位置 上。  The auxiliary contact is disposed at a position that the connector contact must be in contact with before contacting the main contact.
传统的连接器是两个触点的形式, 本技术方案通过增加一个辅助触点, 以及一个电子开关来实现消除电弧。 其关键在于: 在插触头的过程中, 当 连接器的触头与辅助触点连接的时候, 连接器的电流流向转到电子开关的 辅助电流通路, 电路通过此回路实现消弧; 在拔触头的过程中, 当连接器 的触头与主触点分离的时候, 连接器的电流流向转到电子开关的辅助电流 通路, 电路也通过此回路实现消弧; 当连接器的触头与辅助触点分离的时 候, 电子开关已经断开, 也没有电流存在, 因此, 也不会产生电弧。  The conventional connector is in the form of two contacts, and the technical solution achieves arc elimination by adding an auxiliary contact and an electronic switch. The key is: In the process of plugging the contacts, when the contacts of the connector are connected with the auxiliary contacts, the current flow of the connector turns to the auxiliary current path of the electronic switch, and the circuit realizes arc extinguishing through the loop; In the process of the contact, when the contact of the connector is separated from the main contact, the current flow of the connector is turned to the auxiliary current path of the electronic switch, and the circuit also performs arc suppression through the circuit; when the contact of the connector is When the auxiliary contacts are separated, the electronic switch is turned off and no current is present, so no arc is generated.
本发明方法的技术方案是: 一种连接器插拔过程中防止直流拉弧的方 法, 该方法包括将辅助触点通过设有电子开关的连接电路与连接器主触点 电连接;  The technical solution of the method of the present invention is: a method for preventing DC arcing during plugging and unplugging of a connector, the method comprising: electrically connecting an auxiliary contact to a connector main contact through a connecting circuit provided with an electronic switch;
在插连接器的过程中包括以下步骤,  The following steps are included in the process of plugging the connector,
a. 在插连接器的过程开始时, 电子开关保持断开,  a. The electronic switch remains disconnected at the beginning of the process of plugging in the connector.
b . 当连接器触头的头端与连接器辅助触点接通后, 电子开关闭合, 流 过连接器的电流通过电子开关所在的连接电路进而实现防止接入时的拉弧 问题,  b. When the head end of the connector contact is connected to the connector auxiliary contact, the electronic switch is closed, and the current flowing through the connector passes through the connection circuit where the electronic switch is located to thereby prevent the arcing problem during access.
c 当连接器触头的头端与连接器主触点接通时, 此时电子开关保持闭 合或者断开皆可;  c When the head end of the connector contact is connected to the main contact of the connector, the electronic switch can be closed or disconnected at this time;
在拔开连接器的过程中包括以下步骤,  The following steps are included in the process of unplugging the connector.
d. 连接器触头的头端与连接器主触点分开, 在此过程中电子开关保持 闭合, 流过连接器的电流通过电子开关所在的连接电路进而实现防止关断 时的拉弧问题, d. The head end of the connector contact is separated from the connector main contact, during which the electronic switch remains Closed, the current flowing through the connector passes through the connection circuit where the electronic switch is located, thereby preventing the arcing problem when the switch is turned off.
e. 连接器触头的头端与连接器辅助触点即将分离时, 电子开关断开, 流过连接器的电流也同步断开, 连接器触头的头端与连接器辅助触点再断 开, 进而实现防止关断时的拉弧问题,  e. When the head end of the connector contact is about to be separated from the connector auxiliary contact, the electronic switch is disconnected, the current flowing through the connector is also disconnected synchronously, and the head end of the connector contact is disconnected from the connector auxiliary contact. Open, and thus achieve the problem of preventing arcing when turning off,
f. 连接器触头的头端与连接器辅助触点完全分离, 到达初始位, 与连 接器辅助触点形成一定的物理隔离, 此时电子开关保持闭合或者断开皆可。  f. The head end of the connector contact is completely separated from the connector auxiliary contact, reaching the initial position, forming a certain physical isolation from the connector auxiliary contact, and the electronic switch remains closed or disconnected.
所述辅助触点设置于连接器触头与主触点接触之前必会接触到的位置 上。  The auxiliary contact is disposed at a position that the connector contact must be in contact with before contacting the main contact.
本发明的优点是: 本发明实现方法简单, 电路环节少, 成本低。 附图说明  The invention has the advantages that: the invention has simple implementation method, few circuit steps and low cost. DRAWINGS
下面结合附图和实施例对本发明作进一步的描述:  The present invention will be further described below in conjunction with the accompanying drawings and embodiments:
图 1为本发明的应用示意图 (虚框内表示了本发明的结构);  Figure 1 is a schematic view of the application of the present invention (the structure of the present invention is shown in a virtual frame);
图 2、 图 3、 图 4、 图 5、 图 6、 图 7为本发明方法的连接器插拔过程中 的各步骤示意图。  2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are schematic diagrams showing steps in the process of plugging and unplugging the connector of the method of the present invention.
其中: 1 触头; 2 主触点; 3 辅助触点; 5 电子开关; 6 负载。  Where: 1 contact; 2 main contact; 3 auxiliary contact; 5 electronic switch; 6 load.
具体实施方式 detailed description
实施例一- 如图 1所示, 一种防止直流拉弧的电路, 它包括连接器触头 1、主触点 2、 辅助触点 3, 所述主触点 2和辅助触点 3之间的连接电路上设置有可控 制该连接电路断开或闭合的电子开关 5。  Embodiment 1 - As shown in FIG. 1, a circuit for preventing DC arcing, comprising a connector contact 1, a main contact 2, an auxiliary contact 3, between the main contact 2 and the auxiliary contact 3 The connection circuit is provided with an electronic switch 5 that can control the connection circuit to open or close.
所述辅助触点 3设置于连接器触头 1与主触点 2接触之前必会接触到 的位置上。 931 传统的连接器是两个触点的形式, 本发明通过增加一个辅助触点, 以 及一个电子开关来实现消除电弧。 其关键在于: 在插触头的过程中, 当连 接器的触头 1与辅助触点 3连接的时候,连接器的电流流向转到电子开关 5 的辅助电流通路, 电路通过此回路实现消弧; 在拔触头的过程中, 当连接 器的触头 1与主触点 2分离的时候, 连接器的电流流向转到电子开关 5的 辅助电流通路, 电路也通过此回路实现消弧; 当连接器的触头 1 与辅助触 点 3分离的时候, 电子开关 5己经断开, 也没有电流存在, 因此, 也不会 产生电弧。 The auxiliary contact 3 is disposed at a position that the connector contact 1 must contact before it contacts the main contact 2. 931 The conventional connector is in the form of two contacts, and the present invention achieves arc elimination by adding an auxiliary contact and an electronic switch. The key is: During the process of inserting the contacts, when the contact 1 of the connector is connected with the auxiliary contact 3, the current flow of the connector is turned to the auxiliary current path of the electronic switch 5, and the circuit realizes the arc suppression through the circuit. During the process of pulling out the contacts, when the contact 1 of the connector is separated from the main contact 2, the current flow of the connector is turned to the auxiliary current path of the electronic switch 5, and the circuit also performs arc suppression through the circuit; When the contact 1 of the connector is separated from the auxiliary contact 3, the electronic switch 5 has been disconnected, and no current is present, so that no arc is generated.
实施例二: Embodiment 2:
如图 1 所示, 一种连接器插拔过程中防止直流拉弧的方法, 该方法包 括将辅助触点 3通过设有电子开关 5的连接电路与连接器主触点 2电连接; 所述辅助触点 3设置于连接器触头 1与主触点 2接触之前必会接触到的位 置上。  As shown in FIG. 1, a method for preventing DC arcing during plugging and unplugging of a connector, the method comprising electrically connecting an auxiliary contact 3 to a connector main contact 2 through a connecting circuit provided with an electronic switch 5; The auxiliary contact 3 is disposed at a position that the connector contact 1 must come into contact with before the main contact 2.
在插连接器的过程中包括以下步骤, 如图 2、 图 3、 图 4所示, 图示中 虚线箭头表示电流流向, 实线箭头为触头移动方向:  In the process of inserting the connector, the following steps are included, as shown in Fig. 2, Fig. 3, and Fig. 4, the dotted arrow in the figure indicates the current flow direction, and the solid arrow indicates the moving direction of the contact:
a. 如图 2所示, 在插连接器的过程开始时, 电子开关 5保持断开。 b. 如图 3所示, 当连接器触头 1的头端与连接器辅助触点 3接通后, 电子开关 5闭合, 流过连接器的电流通过电子开关 5所在的连接电路进而 实现防止接入时的拉弧问题。  a. As shown in Figure 2, the electronic switch 5 remains open at the beginning of the process of plugging the connector. b. As shown in FIG. 3, when the head end of the connector contact 1 is connected to the connector auxiliary contact 3, the electronic switch 5 is closed, and the current flowing through the connector is prevented by the connection circuit in which the electronic switch 5 is located. Pulling arc problem when accessing.
c 如图 4所示, 当连接器触头 1的头端与连接器主触点 2接通时, 此 时电子开关 5保持闭合或者断开皆可。  c As shown in Figure 4, when the head end of the connector contact 1 is connected to the connector main contact 2, the electronic switch 5 remains closed or disconnected at this time.
在拔开连接器的过程中包括以下步骤, 如图 5、 图 6、 图 7所示, 图示 中虚线箭头表示电流流向:  The following steps are included in the process of unplugging the connector. As shown in Figure 5, Figure 6, and Figure 7, the dotted arrows in the illustration indicate the current flow:
d. 如图 5所示, 连接器触头 1的头端与连接器主触点 2分开, 在此过 程中电子开关 5保持闭合, 流过连接器的电流通过电子开关 5所在的连接 电路进而实现防止关断时的拉弧问题。 d. As shown in Figure 5, the head end of the connector contact 1 is separated from the connector main contact 2, The electronic switch 5 in the process remains closed, and the current flowing through the connector passes through the connection circuit where the electronic switch 5 is located to further prevent the arcing problem when the switch is turned off.
e .如图 6所示,连接器触头 1的头端与连接器辅助触点 3即将分离时, 电子开关 5断开, 流过连接器的电流也同步断开, 连接器触头 1的头端与 连接器辅助触点 3再断开, 进而实现防止关断时的拉弧问题。  e. As shown in Fig. 6, when the head end of the connector contact 1 is about to be separated from the connector auxiliary contact 3, the electronic switch 5 is disconnected, and the current flowing through the connector is also synchronously disconnected, the connector contact 1 The head end and the connector auxiliary contact 3 are again disconnected, thereby achieving the problem of preventing arcing when the switch is turned off.
f . 如图 7所示, 连接器触头 1的头端与连接器辅助触点 3完全分离, 到达初始位, 与连接器辅助触点 3形成一定的物理隔离, 此时电子开关 5 保持闭合或者断开皆可。  f. As shown in Figure 7, the head end of the connector contact 1 is completely separated from the connector auxiliary contact 3, reaching the initial position, forming a certain physical isolation from the connector auxiliary contact 3, at which time the electronic switch 5 remains closed. Or disconnected.
应当指出, 对于经充分说明的本发明来说, 还可具有多种变换及改型 的实施方案, 并不局限于上述实施方式的具体实施例。 上述实施例仅仅作 为本发明的说明, 而不是限制。 总之, 本发明的保护范围应包括那些对于 本领域普通技术人员来说显而易见的变换或替代以及改型。  It should be noted that various modifications and adaptations of the present invention are possible without departing from the specific embodiments of the embodiments described above. The above embodiments are merely illustrative and not limiting. In conclusion, the scope of the invention should be construed to include any alterations or substitutions and modifications which are obvious to those skilled in the art.

Claims

权 利 要 求 书 Claim
1. 一种防止直流拉弧的电路, 其特征在于: 它包括连接器触头 (1)、 主触点 (2)、 辅助触点 (3), 所述主触点 (2) 和辅助触点 (3) 之间的连 接电路上设置有可控制该连接电路断开或闭合的电子开关 (5)。 A circuit for preventing DC arcing, characterized in that it comprises a connector contact (1), a main contact (2), an auxiliary contact (3), the main contact (2) and an auxiliary contact An electronic switch (5) is provided on the connection circuit between the points (3) to control the connection circuit to be opened or closed.
2. 根据权利要求 1所述的防止直流拉弧的电路, 其特征在于: 所述辅 助触点 (3) 设置于连接器触头 (1) 与主触点 (2) 接触之前必会接触到的 位置上。  2. The circuit for preventing DC arcing according to claim 1, wherein: the auxiliary contact (3) is disposed in contact with the connector contact (1) before contacting the main contact (2). The location.
3. 一种连接器插拔过程中防止直流拉弧的方法, 其特征在于: 该方法 包括将辅助触点 (3) 通过设有电子开关 (5) 的连接电路与连接器主触点 3. A method for preventing DC arcing during plugging and unplugging of a connector, characterized in that the method comprises: connecting an auxiliary contact (3) through a connecting circuit provided with an electronic switch (5) and a connector main contact
(2) 电连接; (2) Electrical connection;
在插连接器的过程中包括以下步骤,  The following steps are included in the process of plugging the connector,
a. 在插连接器的过程开始时, 电子开关 (5) 保持断开,  a. The electronic switch (5) remains disconnected at the beginning of the process of plugging the connector.
b. 当连接器触头 (1) 的头端与连接器辅助触点 (3) 接通后, 电子开 关 (5) 闭合, 流过连接器的电流通过电子开关 (5) 所在的连接电路进而 实现防止接入时的拉弧问题,  b. When the head end of the connector contact (1) is connected to the connector auxiliary contact (3), the electronic switch (5) is closed, and the current flowing through the connector passes through the connection circuit where the electronic switch (5) is located. To achieve the problem of arcing when preventing access,
c. 当连接器触头 (1) 的头端与连接器主触点 (2) 接通时, 此时电子 开关 (5) 保持闭合或者断开皆可;  c. When the head end of the connector contact (1) is connected to the connector main contact (2), the electronic switch (5) remains closed or disconnected;
在拔开连接器的过程中包括以下步骤,  The following steps are included in the process of unplugging the connector.
d. 连接器触头 (1) 的头端与连接器主触点 (2) 分开, 在此过程中电 子开关 (5) 保持闭合, 流过连接器的电流通过电子幵关 (5) 所在的连接 电路进而实现防止关断时的拉弧问题,  d. The head end of the connector contact (1) is separated from the connector main contact (2). During this process, the electronic switch (5) remains closed, and the current flowing through the connector passes through the electronic switch (5). Connecting the circuit to prevent the arcing problem when the circuit is turned off,
e. 连接器触头 (1) 的头端与连接器辅助触点 (3) 即将分离时, 电子 开关(5)保持断开, 流过连接器的电流也同步断开, 连接器触头 1的头端 与连接器辅助触点 3再断开, 进而实现防止关断时的拉弧问题,  e. When the head end of the connector contact (1) and the connector auxiliary contact (3) are about to be separated, the electronic switch (5) remains disconnected, and the current flowing through the connector is also disconnected synchronously. The connector contact 1 The head end is disconnected from the connector auxiliary contact 3, thereby preventing the arcing problem when the switch is turned off.
f. 连接器触头 (1) 的头端与连接器辅助触点 (3) 完全分离, 到达初 始位, 与连接器辅助触点 (3) 形成一定的物理隔离, 此时电子开关 (5) 保持闭合或者断开皆可。 f. The head end of the connector contact (1) is completely separated from the connector auxiliary contact (3), reaching the beginning The starting position forms a certain physical isolation from the connector auxiliary contact (3), and the electronic switch (5) remains closed or disconnected.
4. 根据权利要求 3所述的连接器插拔过程中防止直流拉弧的方法, 其 特征在于: 所述辅助触点 (3) 设置于连接器触头 (1 ) 与主触点 (2) 接触 之前必会接触的位置上。  4. The method for preventing DC arcing during plugging and unplugging of a connector according to claim 3, wherein: the auxiliary contact (3) is disposed at a connector contact (1) and a main contact (2) In the position that must be touched before contact.
PCT/CN2011/000931 2010-06-02 2011-06-02 Direct current arc proof circuit and method thereof WO2011150684A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010101896530A CN101888045A (en) 2010-06-02 2010-06-02 Circuit and method for preventing direct current arc discharge
CN201010189653.0 2010-06-02

Publications (1)

Publication Number Publication Date
WO2011150684A1 true WO2011150684A1 (en) 2011-12-08

Family

ID=43073824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/000931 WO2011150684A1 (en) 2010-06-02 2011-06-02 Direct current arc proof circuit and method thereof

Country Status (2)

Country Link
CN (1) CN101888045A (en)
WO (1) WO2011150684A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888045A (en) * 2010-06-02 2010-11-17 江苏艾索新能源股份有限公司 Circuit and method for preventing direct current arc discharge
CN104158032B (en) * 2014-08-27 2016-07-20 国家电网公司 Extinguishing arc type adapter
CN105551856B (en) * 2015-12-10 2018-09-25 艾思玛新能源技术(扬中)有限公司 A kind of circuit of direct current extinguishing arc
CN105355482A (en) * 2015-12-10 2016-02-24 江苏兆伏新能源有限公司 DC arc-extinguishing circuit
CN107834324A (en) * 2017-10-31 2018-03-23 恒安科技(中山)有限公司 A kind of explosion-proof connector
CN114069335B (en) * 2021-12-02 2024-01-30 深圳古瑞瓦特新能源有限公司 Connector with direct current breaking capacity and inverter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2115970C1 (en) * 1996-06-13 1998-07-20 Владимир Леонтьевич Лотоцкий Device for arc-less commutation of direct current electric circuit
CN201383445Y (en) * 2009-04-24 2010-01-13 沈永年 Switch extinguishing arc circuit
CN101888045A (en) * 2010-06-02 2010-11-17 江苏艾索新能源股份有限公司 Circuit and method for preventing direct current arc discharge
CN201766190U (en) * 2010-06-02 2011-03-16 江苏艾索新能源股份有限公司 Circuit capable of preventing direct current from arc discharge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004111312A (en) * 2002-09-20 2004-04-08 Honda Motor Co Ltd Circuit breaker
CN2622828Y (en) * 2003-06-12 2004-06-30 上海科特高分子材料有限公司 Arcless reversing service of switch plant
CN2785111Y (en) * 2005-05-09 2006-05-31 福州大学 Zero pressure continuous limit stream eliminating arc appliance equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2115970C1 (en) * 1996-06-13 1998-07-20 Владимир Леонтьевич Лотоцкий Device for arc-less commutation of direct current electric circuit
CN201383445Y (en) * 2009-04-24 2010-01-13 沈永年 Switch extinguishing arc circuit
CN101888045A (en) * 2010-06-02 2010-11-17 江苏艾索新能源股份有限公司 Circuit and method for preventing direct current arc discharge
CN201766190U (en) * 2010-06-02 2011-03-16 江苏艾索新能源股份有限公司 Circuit capable of preventing direct current from arc discharge

Also Published As

Publication number Publication date
CN101888045A (en) 2010-11-17

Similar Documents

Publication Publication Date Title
WO2011150684A1 (en) Direct current arc proof circuit and method thereof
JP6496326B2 (en) Circuit breaker advantageous for rapid movement and extension of arc
JP4913761B2 (en) Current limiting circuit breaker
CN107533926B (en) By-pass switch provides the method and power system of conductive path
BR112019016457A2 (en) large current and high voltage zero-equivalent phase switch and method of controlling it
JP2012138173A (en) Circuit breaker
CN203014342U (en) Emergency stop circuit of power distribution system of ship
Zajkowski An innovative hybrid insulation switch to enable/disable electrical loads without overvoltages
CN201805036U (en) Circuit preventing direct current arc discharge
WO2013091312A1 (en) Vacuum circuit breaker with improved rated current
CN205789832U (en) A kind of reusable electric fuse
CN104360716B (en) Main frame and peripheral hardware switching sequence control device
CN201766190U (en) Circuit capable of preventing direct current from arc discharge
CN107146723A (en) A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker
CN103943430A (en) Combined type universal air circuit breaker for both alternating-current circuit and direct-current circuit and arc extinction method of combined type universal air circuit breaker
CN206541767U (en) A kind of New Type Isolating Switch
CN206628399U (en) A kind of strong high voltage isolator moving contact of contact performance
WO2016045200A1 (en) Surge suppression and electric spark elimination structure of power connection device
CN206758336U (en) Vacuum fusion tube isolation switch
CN205354967U (en) No arc contactor with cluster hinders formula circuit deciliter system
CN101635221A (en) Extra-high voltage breaker and extra-high over-voltage preventing system with same
CN210326996U (en) Improved switch-on/off controller of circuit breaker
CN205159256U (en) Novel circuit breaker
CN103681079A (en) High-voltage isolating switch
CN204886123U (en) Disconnected protection device of active branch who divides breaking of contact and applied this circuit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11789063

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11789063

Country of ref document: EP

Kind code of ref document: A1