WO2013010378A1 - 一种可调节吸力特性的高压开关永磁操作机构 - Google Patents

一种可调节吸力特性的高压开关永磁操作机构 Download PDF

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Publication number
WO2013010378A1
WO2013010378A1 PCT/CN2012/000950 CN2012000950W WO2013010378A1 WO 2013010378 A1 WO2013010378 A1 WO 2013010378A1 CN 2012000950 W CN2012000950 W CN 2012000950W WO 2013010378 A1 WO2013010378 A1 WO 2013010378A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
iron core
operating mechanism
barrel
magnet operating
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.)
Ceased
Application number
PCT/CN2012/000950
Other languages
English (en)
French (fr)
Inventor
王帮田
张�杰
纪江辉
王小丽
陈景桥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuji Group Co Ltd
State Grid Corp of China SGCC
Original Assignee
Xuji Group Co Ltd
State Grid Corp of China SGCC
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 Xuji Group Co Ltd, State Grid Corp of China SGCC filed Critical Xuji Group Co Ltd
Publication of WO2013010378A1 publication Critical patent/WO2013010378A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • 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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet

Definitions

  • the present invention belongs to a high-power switchgear of a power system, and particularly relates to a high-voltage switch permanent magnet operating mechanism capable of adjusting suction characteristics.
  • the known high-voltage switch permanent magnet operating mechanism changes the suction characteristics by changing the cross-sectional area of the movable iron core or changing the shape of the end face of the movable iron core.
  • These two methods have the following disadvantages: 1. Change by changing the cross-sectional area of the moving iron core The method of suction characteristic, which will cause difficulty in adjusting the closing holding force and the closing speed; 2. The method of changing the suction characteristic by changing the shape of the end face of the moving iron core, which cannot make the suction characteristic of a certain stroke in the closing process Flexible control.
  • a high-voltage switch permanent magnet operating mechanism capable of adjusting suction characteristics, comprising a barrel, a magnetic sleeve, a coil and a permanent magnet, wherein the magnetic sleeve and the coil are disposed in the barrel,
  • the permanent magnet is disposed between the magnetic sleeve and the barrel, and the upper and lower ends of the barrel are respectively mounted with a yoke and an end cover, and the barrel is provided with a special-shaped moving iron core.
  • the profiled moving iron core of I0006J is a cylindrical cylinder, and a groove is formed on the outer wall of the cylinder.
  • the profiled moving iron core is a cylindrical cylinder, and a boss is provided on the outer wall of the cylinder.
  • the number of the grooves is at least one.
  • the number of the bosses is at least one.
  • the invention comprises a barrel, a magnetic sleeve, a coil and a permanent magnet, the magnetic sleeve and the coil are arranged in the barrel, and the permanent magnet is arranged in the magnetic sleeve and the barrel
  • a yoke and an end cover are respectively arranged, and a special-shaped movable iron core is arranged in the barrel, and a groove or a boss is arranged on the outer wall of the shaped movable iron core, and the shape of the outer wall of the shaped movable iron core is changed.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic structural view of an embodiment of a moving iron core in Embodiment 1;
  • Embodiment 3 is a schematic structural view of a second embodiment of a core in Embodiment 1;
  • Embodiment 4 is a schematic structural view of a third embodiment of a moving iron core in Embodiment 1;
  • FIG. 5 is a schematic structural view of a fourth embodiment of a middle moving iron core according to Embodiment 1;
  • Fig. 6 is a schematic view showing the structure of a second embodiment of the present invention.
  • Embodiment 1 a permanent magnet operating mechanism with adjustable suction characteristics as shown in FIG. 1 , comprising a yoke 1 , a coil 2 , a magnetic sleeve 3 , a permanent magnet 4 , an end cover 5 , a barrel , and a moving iron core 7, axis 8.
  • the yoke 1 is mounted on the front end portion of the barrel 6, and the end cover 5 is mounted on the other end of the barrel.
  • the coil 2, the magnetic sleeve 3, and the permanent magnet 4 are all inside the barrel, and the permanent magnet 4 is disposed in the barrel 6 and Between the magnetic sleeves 3, the movable iron core 7 and the shaft 8 are fixedly connected to each other in the barrel 6.
  • grooves are formed in the movable iron core, and the position, size, shape, and number of the grooves are related to the required suction characteristics.
  • the magnetic field distribution is changed to change the suction characteristics of the moving iron core.
  • FIG. 1 A permanent magnet operating mechanism with adjustable suction characteristics as shown in Fig. 1, which includes the main mechanism, has been described in the embodiment 1, and will not be described again.
  • the boss is opened on the movable iron core, wherein the position, size, shape and number of the bosses are related to the required suction characteristics.
  • the magnetic field distribution is changed to change the movement. The suction characteristics of the moving iron core.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

一种可调节吸力特性的高压开关永磁操作机构，包括机筒（6）、磁套（3）、线圈（2）和永磁体（4），磁套和线圈设置在机筒内，永磁体设在磁套和机筒之间，机筒上、下两端分别安装有磁轭（1）和端盖（5），机筒内设有异型动铁芯（7）。异型动铁芯外壁上设有凹槽或者凸台，通过改变异型动铁芯外壁形状来改变磁场的分布，从而达到改变吸力特性的目的。该结构精巧实用，便于调整，易于控制，可以适应不同高压开关的特性需求，便于优化设计，并具有很好的通用性。

Description

说明书 一种可调节吸力特性的高压开关永磁操作机构 技术领域
【0001!本发明属于电力系统高 开关设备，特别涉及一种可调节吸力特性的高压开关永磁 操作机构。
背景技术
[0002J 目前，公知的高压开关永磁操作机构通过改变动铁心截面积或者改变动铁心端面形 状的方法来改变吸力特性， 这两种方法存在下述缺点： 1、 通过改变动铁心截面积来改变 吸力特性的方法， 其会导致合闸保持力和合分闸速度调节困难； 2、 通过改变动铁心端面 形状来改变吸力特性的方法， 其不能对合分闸过程中某段行程的吸力特性做出灵活的控 制。
[0003] 上述现有结构的不足， 导致了吸力特性调整不便、 不易控制。
发明内容
[0004] 本发明的目的是提供一种结构简单、便于灵活控制吸力特性的高压开关永磁操作机 构。
【00051 为实现上述目的， 本发明的技术方案是： 一种可调节吸力特性的高压开关永磁操作 机构， 包括机筒、 磁套、 线圈和永磁体， 磁套和线圈设置在机筒内， 永磁体设在磁套与机 筒之间， 机筒上、 下两端分别安装有磁轭和端盖， 所述机筒内设有异型动铁芯。
I0006J所述异型动铁芯为圆柱状筒体， 筒体外壁上开设有凹槽。
[0007] 所述异型动铁芯为圆柱状筒体， 筒体外壁上设有凸台。
[00081 所述凹槽的数量至少为一个。
10009] 所述凸台的数量至少为一个。
[0010] 与现有技术相比， 本发明的优点是： 本发明包括机筒、 磁套、 线圈和永磁体， 磁套 和线圈设置在机筒内， 永磁体设在磁套与机筒之间， 机筒上、 下两端分别安装有磁轭和端 盖， 机筒内设有异型动铁芯， 异型动铁芯外壁上设有凹槽或者凸台， 通过改变异型动铁芯 外壁形状来改变磁场的分布， 从而达到改变吸力特性的目的， 当异型动铁芯运动至某一行 程处时， 通过凹槽或者凸台改变磁场分布， 以改变异型动铁芯的吸力特性， 该结构精巧实 用， 便于调整、 易于控制， 可以适应不同高压开关的特性需求， 便于优化设计， 也具有很 好的通用性。 ' 附图说明
[0011] 图 1为本发明的实施例 1的结构示意图；
图 2为实施例 1中动铁心一种实施方式的结构示意图；
图 3为实施例 1中 铁心第二种实施方式的结构示意图；
图 4为实施例 1中动铁心第三种实施方式的结构示意图；
图 5为实施例 1 .中动铁心第四种实施方式的结构示意图；
图 6为本发明的实施例 2的结构示意图。
具体实施方式
实施例 1 , 如图 1所示的一种可调节吸力特性的永磁操作机构， 其包括磁轭 1， 线圈 2， 磁套 3， 永磁体 4， 端盖 5， 机筒， 6， 动铁心 7， 轴 8。 磁轭 1安装在机筒 6的前端部， 端盖 5安装在机筒的另一端， 线圈 2、 磁套 3、 永磁体 4都在机筒的内部， 且永磁体 4设 在机筒 6和磁套 3之间， 在机筒 6内动铁心 7和轴 8固定连接在一块。
如图 2、 图 3、 图 4、 图 5所示， 在动铁心上开凹槽， 凹槽的位置、 大小、 形状以及 数量由所要求的吸力特性有关。 当动铁心运动某一行程处时， 改变磁场分布， 以改变动动 铁心的吸力特性。
实施例 2
如图 1所示的一种可调节吸力特性的永磁操作机构， 其包括的主要机构在实施例 1中 已经叙述， 在此不再赘述。
如图 6所示， 在动铁心上开凸台， 其中凸台的位置、大小、形状以及数量由所要求的 吸力特性有关， 当动铁心运动某一行程处时， 改变磁场分布， 以改变动了动铁心的吸力特 性。

Claims

权利要求书
1.一种可调节吸力特性的高压开关永磁操作机构， 包括机筒、 磁套、 线圈和永磁体， 磁套 和线圈设置在机筒内， 磁体设在磁套与机筒之间， 机筒上、 下两端分别安装有磁轭和端 盖， 其特征在于， 所述机筒内设.有异型动铁芯。
2.如权利要求 1所述的可调节吸力特性的高压开关永磁操作机构， 其特征在于， 所述异型 动铁芯为圆柱状筒体， 筒体外壁上开设有凹槽。
3. 如权利要求 1所述的可调节吸力特性的高压开关永磁操作机构， 其特征在于， 所述异型 动铁芯为圆柱状筒体， 筒体外壁上设有凸台。
4. 如权利要求 2所述的可调节吸力特性的高压开关永磁操作机构， 其特征在于， 所述凹槽 的数量至少为一个。
5.如权利要求 3所述的可调节吸力特性的高压开关永磁操作机构， 其特征在于， 所述凸台 的数量至少为一个。
PCT/CN2012/000950 2011-07-15 2012-07-12 一种可调节吸力特性的高压开关永磁操作机构 Ceased WO2013010378A1 (zh)

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CN102254716A (zh) * 2011-07-15 2011-11-23 许继集团有限公司 一种可调节吸力特性的高压开关永磁操作机构
CN104409236A (zh) * 2014-05-15 2015-03-11 苏艳刚 一种保持力可调整的并联永磁操动机构
CN106847570B (zh) * 2016-12-31 2020-06-30 浙江宝威电气有限公司 一种运行稳定的永磁机构
CN106847571B (zh) * 2016-12-31 2020-06-30 浙江宝威电气有限公司 一种新型永磁机构

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