摘要:
A contact for a vacuum interrupter of a low, medium or high-voltage switchgear includes a contact rod composed of a first electrically conductive material and extending along a longitudinal axis of the contact, and a contact piece composed of a second electrically conductive material and fastened to an end face of the contact rod. The contact rod and the contact piece are materially bonded to one another at a connecting face. At least one of the contact rod or the contact piece has a wall which delimits the connecting face, rises perpendicularly to the longitudinal axis and is disposed such that the contact piece and the contact rod are also force-lockingly connected to one another by a force acting transversely to the longitudinal axis between the contact piece and the contact rod. A production method for such a contact is also provided.
摘要:
An electrical contact includes: a first contact surface; a second contact surface; and a coating dispersed on at least one of the first or second contact surfaces, where the coating includes the cured product of a telechelic polypropylene glycol-polyethylene glycol multi-block polymer.
摘要:
A contact terminal structure includes: a first plating layer formed on a surface of a substrate; and a second plating layer formed on a surface of the first plating layer as an outermost layer, in which the first plating layer is composed of a silver-tin alloy, the second plating layer is silver plating or an alloy essentially consisting of silver, the first plating layer has a hardness greater than the second plating layer, and the first plating layer has a Vickers hardness of 250 to 400 and the second plating layer has a Vickers hardness of 80 to 200.
摘要:
Methods for Implementation of a Switching Function in a Microscale Device and for Fabrication of a Microscale Switch. According to one embodiment, a method is provided for implementing a switching function in a microscale device. The method can include providing a stationary electrode and a stationary contact formed on a substrate. Further, a movable microcomponent suspended above the substrate can be provided. A voltage can be applied between the between a movable electrode of the microcomponent and the stationary electrode to electrostatically couple the movable electrode with the stationary electrode, whereby the movable component is deflected toward the substrate and a movable contact moves into contact with the stationary contact to permit an electrical signal to pass through the movable and stationary contacts. A current can be applied through the first electrothermal component to produce heating for generating force for moving the microcomponent.
摘要:
A relay includes contacts, a driving coil, a moving part, and a resistor. The driving coil generates a magnetic force in accordance with a command signal. The moving part is configured to be driven by the magnetic force to open and close the contacts. The resistor has a predetermined electrical resistance. When the command signal is at a first level, the relay is set to a first on-state in which the contacts are closed through the resistor. When the command signal is at a second level higher than the first level, the relay is set to a second on-state in which the contacts are closed through the moving part without the resistor.
摘要:
A MEMS switch device is made using a gold alloy as the switch contact material. The increased mechanical hardness of the alloy compared to the pure gold prevents the contacts of the switch from welding together. A scrubbing action which occurs when the switch closes may allow the contact surfaces to come to rest where their surfaces are complementary, thus resulting in higher contact area and low contact resistance, despite the higher sheet resistance of the gold alloy material relative to the pure gold material.
摘要:
A Micro-Electro-Mechanical System (MEMS) switch includes: a substrate; a fixed electrode provided on the substrate; and a beam fixed to the substrate and including a movable electrode disposed to face the fixed electrode. The beam is capable of being bent and displaced in a direction of the substrate to allow the movable electrode to directly contact with the fixed electrode. At least one of the fixed electrode and the movable electrode contains Au, and the other contains at least one metal selected from a group consisting of Ir, Rh, Os, Ru, Re and Te as a main component.
摘要:
The invention intends to provide a direct current load breaking contact point constitution that can make and break an electrical circuit under both direct current loads of direct current resistance load and direct current inductance load over a long period of time without causing problems such as {circle around (1)} the conduction defect due to the consumption of the contact point, {circle around (2)} the locking due to material transfer from one contact point to the other contact point, {circle around (3)} the welding between the contact points, and {circle around (4)} the abnormal arc continuation, and a direct current load breaking switching mechanism such as a relay, a switch and so on that has the contact point constitution. The direct current load breaking contact point constitution according to the invention comprises a movable contact point and a stationary contact point that face each other; wherein the movable contact point is made of AgSnO2In2O3 alloy that contains at least Ag, 8 to 15% by weight in total of metal oxides including SnO2 and In2O3, 6 to 10% by weight of SnO2 and 1 to 5% by weight of In2O3; the stationary contact point is made of AgZnO alloy that contains at least Ag and 7 to 11% by weight of ZnO; and polarity of a movable side is (+) and that of a stationary side is (−).
摘要翻译:本发明旨在提供直流负载断开触点结构,其可以在直流电流负载和直流电感负载的两个直流负载下长时间地产生和断开电路,而不会引起诸如圆周的问题 (1)由于接触点的消耗引起的导电缺陷{圆周(2)由于从一个接触点到另一接触点的材料转移而导致的锁定,{圆周(3)接触点之间的焊接和{圆 围绕(4个异常电弧继续)以及具有接触点构成的诸如继电器,开关等的直流负载断路切换机构,根据本发明的直流负载断开触点构造包括可动触点 以及彼此面对的固定触点;其中所述可动触点由AgSnO 2 N 2 N 3 Al 3 y,其含有至少Ag,总共含有8〜15重量%的金属氧化物,包括SnO 2和N 2 O 3,6〜 10重量%的SnO 2 2和1至5重量%的In 2 N 3 O 3; 固定接触点由AgZnO合金制成,AgZnO合金至少含有Ag和7至11重量%的ZnO; 并且可动侧的极性为(+),而固定侧的极性为( - )。
摘要:
Trilayered Beam MEMS Device and Related Methods. According to one embodiment, a method for fabricating a trilayered beam is provided. The method can include depositing a sacrificial layer on a substrate and depositing a first conductive layer on the sacrificial layer. The method can also include forming a first conductive microstructure by removing a portion of the first conductive layer. Furthermore, the method can include depositing a structural layer on the first conductive microstructure, the sacrificial layer, and the substrate and forming a via through the structural layer to the first conductive microstructure. Still furthermore, the method can include the following: depositing a second conductive layer on the structural layer and in the via; forming a second conductive microstructure by removing a portion of the second conductive layer, wherein the second conductive microstructure electrically communicates with the first conductive microstructure through the via; and removing a sufficient amount of the sacrificial layer so as to separate the first conductive microstructure from the substrate, wherein the structural layer is supported by the substrate at a first end and is freely suspended above the substrate at an opposing second end.
摘要:
Electrothermal Self-Latching MEMS Switch and Method. According to one embodiment, a microscale switch having a movable microcomponent is provided and includes a substrate having a stationary contact. The switch can also include a structural layer having a movable contact positioned for contacting the stationary contact when the structural layer moves toward the substrate. An electrothermal latch attached to the structural layer and having electrical communication with the movable contact to provide current flow between the electrothermal latch and the stationary contact when the movable contact contacts the stationary contact for maintaining the movable contact in contact with the stationary contact.