| 摘要 |
A coaxial relay is build up from a contact block and an electromagnet block. The contact block carries a plurality of coaxial connectors each composed of a core conductor and a shield conductor surrounding the core conductor. The core conductors extend into a shield chamber to define thereat respective coaxial contacts. At least one movable blade is disposed within the shield chamber for closing and opening the two adjacent coaxial contacts. The movable blade is provided with a dielectric actuator which projects on the top of the contact block and is engaged with a return spring secured to the contact block for urging the movable blade in a direction of opening the coaxial contacts. The electromagnet block carries at least one electromagnet and an armature which is engageable with the actuator when the electromagnet block is assembled to the contact block. The armature moves about a pivot axis from a first position of opening the coaxial contacts to a second position of closing the same. The electromagnet includes a frame of a non-magnetic material which holds the electromagnet and has its lower end secured to the contact block. The frame has a retainer mechanism for pivotally supporting the armature. Thus, a magnetic gap distance between the electromagnet and the armature can be fixed and does not vary a the time of assembling the electromagnet block to the contact block, so that the relay can have a reliable armature movement in response to the excitation of the electromagnet.
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