专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB2543578A Improvements in or relating to pumping and pressure measurement in vacuum switching devices 未知
公开(公告)号：GB2543578A
公开(公告)日：2017-04-26
申请号：GB201518841
申请日：2015-10-23
申请人： THE GENERAL ELECTRIC COMPANY
发明人： RICHARD REEVES , LESLIE THOMAS FALKINGHAM
IPC分类号： H01H33/668
摘要： A method of introducing an additional stage of pumping in the manufacture of vacuum switches so as to increase the vacuum life, in which a first electrical discharge is held in the residual gas within the vacuum switch for long enough to reduce the gas pressure to a desired level, as revealed by the falling discharge current when subject to inverse magnetron discharge testing. The first discharge may be held for between 5 and 15 seconds or more and may be of the Penning or Inverse Magnetron type, or may be pulsed or consist of a series of discharges. The remaining level of current at the end of the first discharge may be used to reveal the presence and/or measure the rate of a leak. The form of the falling current curve and the residual current value may be used to measure the content of permanent gas within the devices as well as detect gas leakage. The gas leak rate may be measured with a second discharge after a delay period, which may be short in comparison to conventional methods. The first discharge may be pulsed or consist of a series of discharges. This method can be applied to improving the vacuum of newly made devices or of old devices whose vacuum has deteriorated.

2. 发明专利

GB2539366A Combined spring 未知
公开(公告)号：GB2539366A
公开(公告)日：2016-12-21
申请号：GB201422770
申请日：2014-12-19
申请人： THE GENERAL ELECTRIC COMPANY
发明人： LESLIE THOMAS FALKINGHAM
IPC分类号： H01H33/664 , H01H33/66 , H01H33/666
摘要： A vacuum switching device comprises a moving electrode that is completely enclosed in an evacuated envelope and mechanically engages and disengages with a fixed electrode to perform a switching function. The moving electrode is connected to an electrically conducting end of the vacuum chamber by an electrically conductive spring component 20 which allows movement of the moving electrode whilst maintaining connection from it to the outside of the device. The spring can provide a closing force, alignment and guidance to a moving electrode and conduct heat away from it to the outside of the device. The spring component can take the form of a helix or a spring washer and be made of a low resistance material such as copper. The spring component may also have a stiffer second spring 25 made of steel to help provide closing forces that can be inside, outside or attached to and interleaved with the first spring (fig 4). The spring may be split into two or more turns (fig 6). The spring connection may be used in a vacuum switch having no external moving parts.

3. 发明专利

GB2552839A Improvements to vacuum switching device contacts 未知
公开(公告)号：GB2552839A
公开(公告)日：2018-02-14
申请号：GB201613885
申请日：2016-08-12
申请人： THE GENERAL ELECTRIC COMPANY
发明人： LESLIE THOMAS FALKINGHAM
IPC分类号： H01H33/664
摘要： A vacuum switching device comprises at least one cup-shaped contact 6 closed by a disc of contact material 5 and a conical mechanical support 11, which acts to prevent the contact disc 5 from becoming concave. The cup-shaped contact comprises a plurality of slots in the sidewalls that extend into the base of the cup, the slots oriented to produce an axial magnetic field when current flows through the contacts. 50% of the slots may extend into the base of the contact. The slots may have an angle of between 45º and 82º relative to the axis of the contacts. The support 11 may be made of a metal that is a poor conductor of electricity, such as stainless steel, or of glass or ceramic material. The cone angle may be between 20º and 140º. The narrow end of the cone may be capped by a circular ring or disc, and the wide end may be formed with a flange. The flange may be circular and may be sized and formed to locate the cone centrally in the base of the contact cup. The cone may comprise apertures to facilitate the evacuation of gas from inside the cone.

4. 发明专利

GB2511373B Vacuum switching device having axial field contacts 未知
公开(公告)号：GB2511373B
公开(公告)日：2018-01-03
申请号：GB201318392
申请日：2013-10-17
申请人： THE GENERAL ELECTRIC COMPANY LTD
发明人： LESLIE THOMAS FALKINGHAM , RICHARD REEVES
IPC分类号： H01H33/664

5. 发明专利

GB2531935A Interrupter module 未知
公开(公告)号：GB2531935A
公开(公告)日：2016-05-04
申请号：GB201518162
申请日：2015-10-14
申请人： THE GENERAL ELECTRIC COMPANY
发明人： LESLIE THOMAS FALKINGHAM
IPC分类号： H01H33/666
摘要： Equipment for switching medium voltage three phase supplies uses three separate self actuating vacuum interrupters, one for each phase, in conjunction with a control unit. Each interrupter module can comprise an electromagnetic actuator, a drive insulator and a flexible conductor. Modules may be encapsulated in insulating material or contained in an insulating enclosure and can include a fault sensor, control equipment and a latching device to hold contacts in an open or closed condition. The interrupter modules may comprise terminals for suitable for insulated cables or bus bars. The three vacuum interrupters may be used in the tower of a wind generator or an indoor substation since an enclosing cabinet or substation cubicle is not necessary.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式