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. 发明授权

US4388507A Excess-current protective switch 失效
标题翻译：过流保护开关
公开(公告)号：US4388507A
公开(公告)日：1983-06-14
申请号：US306153
申请日：1981-09-28
申请人： Adrian W. Roth , Tibor Morva
发明人： Adrian W. Roth , Tibor Morva
IPC分类号： H01H33/91 , H01H71/24 , H01H33/70
CPC分类号： H01H71/24 , H01H33/91 , H01H71/2454
摘要： In the cut-on position of the protective switch a movable contact element engages with a stationary contact element and at the same time is exposed to the action of a force displacing such movable contact element into a cut-off position. The movable contact element is arrestable in the cut-on position by means of a locking device which can be activated by an excess current. In order to reduce the number of movable parts to a minimum as well as to avoid parts which generate heat due to appreciable thermal losses, such locking device is provided with a substantially U-shaped locking element formed of a soft magnetic material. This locking element surrounds the movable contact element with play or clearance and is displaceably mounted transversely with respect to the flow of current in such movable contact element. At least one free leg end of the locking element is provided with a stop which in the cut-on position cooperates with a stop nose which is movable together with the movable contact element. The protective switch is suitable for installation in medium voltage and high-voltage switching installations.
摘要翻译：在保护开关的切入位置，可动接触元件与固定接触元件接合，并且同时暴露于使这种可动接触元件移动到截止位置的力的作用。可动接触元件可通过可由过电流激活的锁定装置在切入位置阻止。为了将可移动部件的数量减少到最小，并且由于可观的热损失而避免产生热量的部件，所以这种锁定装置设置有由软磁性材料形成的大致U形的锁定元件。该锁定元件围绕具有间隙或间隙的可动接触元件，并且相对于这种可动接触元件中的电流流动地可移动地安装。锁定元件的至少一个自由腿端设置有止动件，该止动件在切入位置与与可动接触元件一起可移动的止动鼻配合。保护开关适用于中压和高压开关装置的安装。

2. 发明授权

US4220838A Gas-blast switch 失效
标题翻译：鼓风开关
公开(公告)号：US4220838A
公开(公告)日：1980-09-02
申请号：US964081
申请日：1978-11-27
申请人： Richard Thaler , John Montigel , Hans-Ulrich Meier , Moritz Jungo , Christian Tschannen , Tibor Morva
发明人： Richard Thaler , John Montigel , Hans-Ulrich Meier , Moritz Jungo , Christian Tschannen , Tibor Morva
IPC分类号： H01H33/56 , H01H33/91 , H01H33/915 , H01H33/82
CPC分类号： H01H33/91 , H01H33/561
摘要： A gas-blast switch having a hollow support insulator, and and at least one switching chamber housing supported thereon and within which there is arranged a set of fixed contacts, surrounded by a blast chamber, and a set of movable contacts. A blast nozzle coacts with the movable contacts and is connected with a pump device having a pump cylinder surrounding a pump chamber and movable with the movable contacts. The pump cylinder is displaceably arranged upon a stationary piston. A check valve opens towards the pump chamber. During the cut-on stroke pressurized gas is sucked by the valve into the pump chamber. The latter is connected by the check valve with a supply compartment communicating via inlets with the blast chamber and the internal space of the support insulator. A further valve is responsive to the pressure increase in the blast chamber, which valve, when responsive, interrupts the connection between the internal space of the support insulator and the inlets. The supply compartment is preferably formed by a cylindrical hollow body whose one end face serves as the pump piston, whereas at the end region of the outer surface of the hollow body furthest from such piston there are formed the throughpassages or inlets as axially lengthwise extending slots. The valve may be a plate valve whose valve plate coacts with a valve seat affording access to the internal space of the support insulator and further, in its open position, subdivides the inlets into two sections, one opening into the supply compartment, the other by means of the valve seat into the internal space of the support insulator.
摘要翻译：一种具有中空支撑绝缘体的鼓风开关，以及支撑在其上的至少一个开关室壳体，其中布置有由鼓风室包围的一组固定触点和一组可动触头。鼓风喷嘴与可动触头共同作用并与泵装置连接，该泵装置具有围绕泵室的泵筒并可与可动触点一起移动。泵筒可移动地布置在静止的活塞上。止回阀向泵室打开。在切入行程期间，加压气体被阀吸入泵室。后者通过止回阀与通过入口与鼓风室和支撑绝缘体的内部空间连通的供应隔室连接。进一步的阀门响应于鼓风室中的压力增加，该响应时该阀中断支撑绝缘体的内部空间和入口之间的连接。供应室优选地由一个端面用作泵活塞的圆柱形中空体形成，而在距离这种活塞最远的中空体的外表面的端部区域处形成有通道或入口作为轴向纵向延伸的槽。阀可以是板阀，其阀板与阀座共同作用，进入到支撑绝缘体的内部空间，并且在其打开位置中，将入口细分成两个部分，一个通向供应室的开口，另一个通过阀座进入支撑绝缘子的内部空间的装置。

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