摘要:
Peripheral surfaces of end portions of individual optical fibers constituting a first optical fiber array are in close contact with an optical fiber fitting surface of a base, while the peripheral surfaces of the end portions of the individual optical fibers are in close contact with one another. Peripheral surfaces of end portions of optical fibers on both sides out of the individual optical fibers constituting the first optical fiber array are in close contact with a pair of stopper members, respectively, disposed on both sides of an end portion of the first optical fiber array. A second optical fiber or optical fiber array is opposed to an end face of the end portion of the first optical fiber array. Between projecting portions of the pair of stopper members projected from the end face of the first optical fiber array, peripheral surfaces of end portions of the individual optical fibers constituting the second optical fiber or optical fiber array are in close contact with the optical fiber fitting surface of the base.
摘要:
A polarized relay with an electromagnetic drive comprises an electromagnetic yoke composed of a core wound with a coil and a yoke body, and having one end portion of one magnetic polarity and a pair of bifurcated end portions of the other magnetic polarity opposite to the one magnetic polarity. The bifurcated end portions are separated in opposition from each other. The one end portion of the yoke is disposed between the bifurcated end portions so as to cooperate to form a pair of working gaps. A movable block of a substantially C-like configuration incorporating a permanent magnet has two magnetic pole pieces which are disposed within the working gaps, respectively. Guide is provided for guiding the movable block in response to energization and deenergization of the coil so that the pole pieces are movable within the respective working gaps. A contact mechanism including movable contacts is mechanically coupled to the movable block to make or break circuit.
摘要:
An electromagnetic actuator has an iron core around which a coil is wound; two permanent magnets, the same poles of which are placed on the ends of the core which extend beyond the coil and which have the same direction of polarity; magnetic poles formed on either end of the iron core; a yoke which connects the poles of the magnets opposite those which face the core; and an iron armature which is supported by a fulcrum on the yoke in such a way that it is free to rotate around the fulcrum, and which has on either end a magnetic pole which faces one of the poles of the core.
摘要:
An electromagnetic relay includes a moving block assembly which is selectively attracted by the energization of the electromagnet in the relay and moves in a direction perpendicular to the axis of an iron core within the electromagnet, thus actuating a movable contact support. The moving block and the movable contact support slide together, thus preventing wobbling of the movable block assembly within the relay.
摘要:
A switching device which can be small-sized by improving a shielding performance and can improve the reliability of switching characteristics. A permanent magnet disposed near stationary contacts is arranged in its pole-face perpendicularly of the axis of a moving contact member.
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:
A switching device of low power consumption type, in which magnetic pole portions 37c of a pair of iron cores 37 constructing an electromagnet block 30 are individually arranged on the bottom face of a sealing case 41. The other end portions of the paired iron cores 37 are connected to each other by a yoke 39. As the electromagnet block 30 is magnetized and demagnetized, the two end portions of a moving iron member 63 of a contact mechanism block 50 are attracted by and leave the paired magnetic pole portions 37c of the iron cores 37.
摘要:
A short-circuit detector has connected between positive and negative terminals of a DC power source a series connection including sequentially a first switch, a first detection resistor, a second detection resistor and a second switch, a third switch between a grounding terminal such as a vehicle chassis and a point between the first and second detection resistors and a voltage detector circuit connected in parallel with the first and second detection resistors. A control circuit is connected to the voltage detector circuit, serving to calculate a voltage value of the DC power source by switching on only the first and second switches, to calculate a first voltage drop value across the first detection resistor by switching on only the first and third switches, to calculate a second voltage drop value across the second detection resistor by switching on only the second and third switches and to determine presence or absence of short-circuited conditions at the positive and negative terminals of the DC power source on the basis of the calculated voltage value, the first voltage drop value and the second voltage drop value.
摘要:
A micro relay comprising a coil plate 40 having a spiral flat coil 48 formed around a through hole 42 on the front and rear surfaces of the plate, a fixed contact plate 50 which is tightly fixed on the upper surface of this coil plate 40 and uses a tip portion of an iron core 51 projecting from the through hole 42 as a fixed contact 52 and a movable contact plate 20 which makes a movable contact piece 23 pivotally supported in the direction of plate thickness via a hinge portion 22 extending from inside an annular yoke 24 face the fixed contact 52 so as to allow it to come in and out of contact with the fixed contact 52. With this arrangement, a relay of a high productivity having no scattering in operation characteristics can be obtained.
摘要:
A high frequency R-F switch includes a switch body of housing made from a conductive material or a non-conductive resin having a conductive layer plated on the body surfaces. The switching device includes a first external connector, a first conductor having a switching contact member connected to the first external connector for switching a connection with the switch contact member. A conductive housing .[.supports.]. .Iadd.houses .Iaddend.the first conductor, .Iadd.and connects to .Iaddend.a second external connector and second conductor. The switch body or housing is in electrical connection with the second external conductor.