WO2017173819A1 - 用于旋转隔离开关的触头模块和旋转隔离开关 - Google Patents
用于旋转隔离开关的触头模块和旋转隔离开关 Download PDFInfo
- Publication number
- WO2017173819A1 WO2017173819A1 PCT/CN2016/104532 CN2016104532W WO2017173819A1 WO 2017173819 A1 WO2017173819 A1 WO 2017173819A1 CN 2016104532 W CN2016104532 W CN 2016104532W WO 2017173819 A1 WO2017173819 A1 WO 2017173819A1
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- WIPO (PCT)
- Prior art keywords
- contact
- contact module
- adjacent
- rotary
- module
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/025—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
Definitions
- the invention relates to the field of electrical switches, and in particular to a rotary isolating switch.
- the rotary isolating switch is used to block or allow current to flow during the energized state, so that the portion of the power distribution device that needs to be powered off is reliably isolated from the live portion.
- Rotary disconnectors are widely used in power systems, such as photovoltaics, wind power, and the like.
- photovoltaics the smaller currents generated in each photovoltaic cell are combined in parallel to provide the required current or total power to the utilization system.
- a rotary isolation switch is typically utilized to separately isolate, protect, and disconnect each photovoltaic cell.
- rotary isolating switches are typically constructed from one or more modular contact modules, each of which typically includes a rotatable contact and a pair of fixed contacts.
- the use of the rotary isolating switch is too low to meet the breaking requirements of the DC voltage at 1000V or 1500V. Even though some rotary isolating switches can reach 1000V when used, their rated currents can be relatively low, such as 16A and below. Generally speaking, the performance of a rotary isolating switch is limited by its ability to break the arc. The arc generated between the rotatable contact and the fixed contact during the operation of the rotary isolating switch increases with the increase of voltage or rated current.
- each of the contact modules includes a spindle module that passes through the center of the rotatable contact and can rotate the rotatable contacts, adjacent to the two contact modules.
- the mandrel modules are engaged with each other, and the rotational force exerted on the mandrel module by the external rotary operating member drives the rotation of the rotatable contacts of the respective contact modules to achieve closing or opening of the rotary isolating switch.
- the design of the split mandrel module makes the cumulative error when mating with each other large, and the synchronism of the rotatable contact and the fixed contact is poor.
- the magnet is disposed at a position adjacent to each of the motion tracks of the movable contact portion that is engaged or disengaged from the static contact portion.
- the magnet is disposed adjacent to the engaging position or the disengaging position of the movable contact portion and the static contact portion, so that the magnetic field of the magnet is respectively driven away from the arc from the moving contact portion or the static contact portion away from the two contacts, thereby enhancing the arc extinguishing capability. Increased arc extinguishing effect.
- the magnet is disposed at an intermediate position of the motion trajectory, so that the magnetic field of the magnet is blown away from the arc from an intermediate position of the motion trajectory toward a direction away from the two contacts, so that the arc is increased due to an increase in arc voltage, and the arc current is reduced Broken, the arc extinguishing effect is better.
- the plurality of magnets adjacent to each of the motion trajectories are plural.
- the bottom of the center seat is provided with a magnet placement hole, and the magnet is located in the magnet placement hole.
- the magnet is a magnetic steel.
- the magnetic steel is a permanent magnet, the magnetic field is stable, and the magnetic blowing effect is good.
- the rotatable contact further comprises two conductive sheets, the two conductive sheets are covered and clamped by the arc blocking device, and the ends of the two conductive sheets are opposite to each other, so that The movable contact portion that receives and contacts the static contact portion is formed.
- Another object of the present invention is to provide a rotary isolating switch including at least one of the above-described contact modules, the polarity of the magnet of each of the at least one contact modules being substantially the same.
- the two fixed contacts of the same contact module are arranged on the same side with respect to the central plane.
- the arrangement of the two fixed contacts on the same side can facilitate the fastening operation on the same side to facilitate the connection.
- FIG. 1 is a perspective view showing one embodiment of a rotary isolating switch in accordance with the present invention.
- the rotary isolating switch 100 is a modular switch that includes a plurality of contact modules 10, 20, 30 and a control module 40 stacked together.
- the contact module 10 is located as a mounting module at the bottom end of the rotary isolating switch 100 and may be provided with a mounting structure at the bottom for mounting the rotary isolating switch 100 to a component or device such as a mounting rail of the power distribution cabinet, the contact modules 20, 30 They are usually used in combination and sequentially stacked on the contact module 10.
- the magnet 14 can be a magnetic steel. Magnetic steel is a permanent magnet with stable magnetic field and good magnetic blowing effect. Of course, the magnet 14 can be selected by those skilled in the art according to actual conditions.
- the operating mandrel 41 reaches the end of the stroke (for example, the operating mandrel 41 rotates by approximately 90°); similarly, when the rotary isolating switch 100 is turned off, the handle is rotated clockwise, and the energy storage component is stored after being stored. Upon sudden release, the rotary disconnector 100 is quickly switched to the open position.
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Abstract
Description
Claims (27)
- 一种用于旋转隔离开关的触头模块,包括:外壳,所述外壳上形成有中心座和至少两个外周座;至少两个固定触头,所述固定触头分别安装在所述外周座内,并且每个所述固定触头包括静接触部分和能够从所述外壳的外部触及的连接部分;可旋转触头,所述可旋转触头安装在所述中心座内,并且包括与所述静接触部分对应的动接触部分,所述可旋转触头能够绕所述中心座的轴线相对于所述固定触头旋转,以使所述动接触部分与相应的所述静接触部分接合或脱开;其中,所述触头模块还包括至少一个磁体,并且所述至少一个磁体中的每个磁体的极性朝向相同,从而能够沿远离所述动接触部分与所述静接触部分的方向切断两者之间产生的电弧。
- 根据权利要求1所述的触头模块,其特征在于,所述磁体设置在邻近所述动接触部分与所述静接触部分接合或脱开的每个运动轨迹的位置。
- 根据权利要求2所述的触头模块,其特征在于,所述磁体位于如下位置之一:邻近所述动接触部分与所述静接触部分接合或脱开的运动轨迹的中间位置、邻近所述动接触部分与所述静接触部分的接合位置、邻近所述动接触部分与所述静接触部分的脱开位置。
- 根据权利要求1或2所述的触头模块,其特征在于,邻近每个所述运动轨迹处的所述磁体为多个。
- 根据权利要求4所述的触头模块,其特征在于,所述多个磁体放置成沿所述运动轨迹大致均匀分布或聚集在所述运动轨迹的中间位置。
- 根据权利要求1或2所述的触头模块,其特征在于,所述中心座的底部设有磁体放置孔,所述磁体位于所述磁体放置孔中。
- 根据权利要求1或2所述的触头模块,其特征在于,所述磁体为磁钢。
- 根据权利要求1所述的触头模块,其特征在于,所述可旋转触头包括隔弧装置,所述磁体设置在所述隔弧装置内。
- 根据权利要求8所述的触头模块,其特征在于,所述可旋转触头还包括两个导电片,所述两个导电片由所述隔弧装置包覆并夹紧,所述两个导电片的端部彼此相对,从而在它们之间形成接收并接触所述静接触部分的所述动接触部分。
- 根据权利要求9所述的触头模块,其特征在于,所述隔弧装置有上隔弧件和下隔弧件并通过超声波焊接连接而成。
- 根据权利要求8所述的触头模块,其特征在于,所述隔弧装置由PA66制成。
- 根据权利要求1所述的触头模块,其特征在于,所述连接部分具有与外部导电体接触的连接面,所述连接面上设置有多条凸棱或多个凸点。
- 根据权利要求12所述的触头模块,其特征在于,所述固定触头为片状结构,所述固定触头的连接部分与静接触部分垂直布置并且沿相反方向延伸,所述连接面形成于所述连接部分的正反两面。
- 根据权利要求1所述的触头模块,其特征在于,所述外壳包括邻近所述连接部分的绝缘结构,以用于增大所述连接部分的爬电距离。
- 根据权利要求14所述的触头模块,其特征在于,所述绝缘结构包括环绕所述连接部分的壁状结构。
- 一种旋转隔离开关,包括至少一个如权利要求1至13中任一项所述的触头模块,其特征在于,所述至少一个触头模块中的每一个触头模块的所述磁体的极性朝向相同。
- 根据权利要求16所述的旋转隔离开关,其特征在于,所述至少一个触头模块包括第一触头模块和第二触头模块,所述第一触头模块和所述第二触头模块分别包括两个固定触头,所述第一触头模块和所述第二触头模块叠置并且所述第一触头模块和所述第二触头模块的相邻的两个固定触头相对于穿过所述中心座的轴线的中心平面被布置在相对侧上。
- 根据权利要求17所述的旋转隔离开关,其特征在于,同一所述 触头模块的两个固定触头相对于所述中心平面被布置在同一侧上。
- 根据权利要求16所述的旋转隔离开关,其特征在于,所述外壳还包括邻近所述连接部分的第一绝缘结构,以及邻近所述第一绝缘结构且远离所述连接部分的第二绝缘结构,以在所述触头模块彼此叠置时增加相邻的触头模块的相邻的连接部分之间的爬电距离。
- 根据权利要求19所述的旋转隔离开关,其特征在于,所述第一绝缘结构包括环绕所述连接部分并朝向所述外壳的敞开方向敞开的第一壁状结构,所述第二绝缘结构包括与所述第一壁状结构的敞开方向相反的第二壁状结构,以在所述触头模块彼此叠置时使一个触头模块的所述第一壁状结构和相邻的另一个触头模块的所述第二壁状结构配合形成包围前一触头模块的所述连接部分的包围结构。
- 根据权利要求20所述的旋转隔离开关,其特征在于,所述第一壁状结构和第二壁状结构包括U形内侧环绕壁和U形外侧环绕壁,以使所述包围结构大致呈“回”形。
- 根据权利要求16所述的旋转隔离开关,其特征在于,所述旋转隔离开关还包括驱动芯轴,所述驱动芯轴旋转驱动所述可旋转触头与所述固定触头接合或脱开。
- 根据权利要求22所述的旋转隔离开关,其特征在于,所述驱动芯轴为一体式结构,所述可旋转触头设置有供所述驱动芯轴穿过的接口,所述驱动芯轴穿过所述接口旋转驱动所述可旋转触头与所述固定触头接合或脱开。
- 根据权利要求16至23中任一项所述的旋转隔离开关,其特征在于,各所述触头模块之间通过定位结构对准并且通过连接结构固定。
- 根据权利要求24所述的旋转隔离开关,其特征在于,所述定位结构包括设置在相邻两个所述触头模块中一者上的定位孔和设置在另一者上的定位柱,所述定位柱与所述定位孔对准。
- 根据权利要求24所述的旋转隔离开关,其特征在于,所述连接结构包括设置在相邻两个所述触头模块中一者上的卡孔和设置在另一者上的卡块,所述卡块卡接在所述卡孔内。
- 根据权利要求26所述的旋转隔离开关,其特征在于,相邻两个触头模块在接合位置通过超声波焊接固定。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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BR112018069407A BR112018069407A2 (pt) | 2016-04-08 | 2016-11-04 | módulo de contato para um comutador de isolamento rotativo e comutador de isolamento rotativo |
Applications Claiming Priority (2)
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CN201610224144.4A CN105702519B (zh) | 2016-04-08 | 2016-04-08 | 用于旋转隔离开关的触头模块和旋转隔离开关 |
CN201610224144.4 | 2016-04-08 |
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WO2017173819A1 true WO2017173819A1 (zh) | 2017-10-12 |
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PCT/CN2016/104532 WO2017173819A1 (zh) | 2016-04-08 | 2016-11-04 | 用于旋转隔离开关的触头模块和旋转隔离开关 |
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CN (1) | CN105702519B (zh) |
BR (1) | BR112018069407A2 (zh) |
WO (1) | WO2017173819A1 (zh) |
Cited By (3)
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CN107591277A (zh) * | 2017-10-31 | 2018-01-16 | 新驰电气有限公司 | 一种直流隔离开关 |
CN114300298A (zh) * | 2022-01-05 | 2022-04-08 | 浙江天正电气股份有限公司 | 一种隔离开关 |
CN116638110A (zh) * | 2023-07-10 | 2023-08-25 | 意特利(滁州)智能数控科技有限公司 | 立卧转换主轴及数控机床 |
Families Citing this family (4)
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CN105702519B (zh) * | 2016-04-08 | 2019-01-18 | 首瑞(天津)电气设备有限公司 | 用于旋转隔离开关的触头模块和旋转隔离开关 |
CN108766805B (zh) * | 2018-05-31 | 2020-04-28 | 深圳市泰永电气科技有限公司 | 自动转换开关电器的双断点动触头组件及触头装置 |
CN114464496B (zh) * | 2022-02-17 | 2023-04-25 | 中国科学院合肥物质科学研究院 | 具有环形分体瓣式动触头结构的大电流分断机械开关 |
CN114758919A (zh) * | 2022-05-13 | 2022-07-15 | Abb瑞士股份有限公司 | 隔离开关和开关柜 |
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2016
- 2016-04-08 CN CN201610224144.4A patent/CN105702519B/zh active Active
- 2016-11-04 WO PCT/CN2016/104532 patent/WO2017173819A1/zh active Application Filing
- 2016-11-04 BR BR112018069407A patent/BR112018069407A2/pt not_active IP Right Cessation
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CN107591277A (zh) * | 2017-10-31 | 2018-01-16 | 新驰电气有限公司 | 一种直流隔离开关 |
CN114300298A (zh) * | 2022-01-05 | 2022-04-08 | 浙江天正电气股份有限公司 | 一种隔离开关 |
CN116638110A (zh) * | 2023-07-10 | 2023-08-25 | 意特利(滁州)智能数控科技有限公司 | 立卧转换主轴及数控机床 |
CN116638110B (zh) * | 2023-07-10 | 2023-10-31 | 意特利(滁州)智能数控科技有限公司 | 立卧转换主轴及数控机床 |
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CN105702519A (zh) | 2016-06-22 |
BR112018069407A2 (pt) | 2019-01-22 |
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