摘要:
A process for the preparation of a highly pure 5,5′-bi-1H-tetrazolediammonium salt comprising adding a small amount of ammonia water to a reaction solution containing a 5,5′-bi-1H-tetrazolediammonium salt synthesized in the presence of a copper catalyst, removing by filtration the blue insoluble components of formed copper.ammonia.5,5′-bi-1H-tetrazole complex to obtain a filtrate of the 5,5′-bi-1H-tetrazoledisodium salt and reacting the filtrate with an aqueous solution of ammonium chloride, and recovering the formed, highly pure ammonium salt as sparingly soluble crystals.
摘要:
A connector to be mounted on a substrate includes a first pad and a second pad formed on the surface, including a first contact including a first contacting portion to be in contact with the first pad when the connector is mounted on the substrate; and a second contact including a second contacting portion to be in contact with the second pad when the connector is mounted on the substrate, the first contact and the second contact being configured such that the first contacting portion slides on the first pad in a first direction while the second contacting portion slides on the second pad in a second direction opposite to the first direction, when the first contact and the second contact are pushed toward the first pad and the second pad, respectively, while the connector is being placed on and fixed to the substrate.
摘要:
A flexible cable connecting structure includes a terminal part including a plurality of conductive patterns, the conductive patterns being formed at an end part of a flexible cable; a plurality of connector pins that are provided side by side inside a connector, the connector pins being configured to be connected to the terminal part; a cable side guide part fixed at a rear surface of the terminal part of the flexible cable; and a connector side guide part provided at a cable inserting opening of the connector, the connector side guide part being configured to guide inserting and detaching of the cable side guide part. The cable side guide part slides on the connector side guide part when the cable side guide part is being inserted into the cable inserting opening of the connector, so that the inserting and detaching of the cable side guide part is guided.
摘要:
A connector includes multiple probes and a first insulator part and a second insulator part joined to cover the probes. Each of the probes has a monolithic structure of a single bent metal plate.Each of the probes includes an end part configured to come into contact with an electrode terminal; a spring part having a meandering shape and connected to the end part; a housing part bent to enclose the spring part; and a bent part provided between the spring part and the housing part. The end parts of the probes are at least partially projecting outward from first openings provided in the first insulator part, and the bent parts of the probes are at least partially projecting outward from second openings provided in the second insulator part.
摘要:
A probe used for electrical measurement includes first and second internal electrically-conductive parts; first and second terminal contact parts configured to contact first and second external electrode terminals, respectively; first and second spring parts each having a meandering pattern; a housing part configured to surround the first and second internal electrically-conductive parts. The first internal electrically-conductive part, the first terminal contact part, the first spring part, the housing part, the second spring part, the second terminal contact part, and the second internal electrically-conductive part are successively connected in a single metal plate from a first end to a second end thereof. The first and second terminal contact parts are in first and second bent portions, respectively, of the single metal plate. The first and second internal electrically-conductive parts are configured to contact each other at the time of performing the electrical measurement.
摘要:
An optical waveguide device that is smaller in size and has higher impact resistance. The optical waveguide device (1) has a V-groove (14) formed in a groove forming surface (SF) at an end of a base board (10) where an optical waveguide section (11) is formed. An optical fiber element (22) is embedded by an adhesive layer (13) and connected to the base board (10) with an end of the optical fiber element (22) fitted in the V-groove (14).
摘要:
A disclosed coaxial connector can be surface-mounted on a circuit board without degradation in signal transmission characteristics. The coaxial connector includes a center conductor, a surrounding conductor by which the center conductor is surrounded, and an insulating housing. The center conductor has a leg portion at its base end. The surrounding conductor has six lugs at its base end that extend radially. The leg portion and the lugs are exposed on a bottom surface of the housing. The coaxial connector is mounted on the circuit board with the leg portion pressed against a signal pad on the circuit board for electrical connection and the lugs pressed against a ground pad for electrical connection.
摘要:
An optical waveguide device having a high impact resistance and which can prevent bending and disconnection of an optical fiber, includes a substrate formed with an optical waveguide; an optical fiber connected to both of end portions of the optical waveguide; and a case housing the substrate and holding the optical fiber through a flexible member. Since the optical fiber is held to the case with the flexible member therebetween, thermal stress caused by a difference of the linear expansion coefficient of the optical fiber and that of the case is absorbed by the flexible member, and bending and disconnection of the optical fiber can be prevented. The optical fiber is locked to the case by a stopper such that a tensile force applied to the optical fiber is not propagated to a connection section between the optical fiber and the optical waveguide, and thus, impact resistance is improved.
摘要:
The electric connection block includes: a plurality of layers, each layer consisting of a plurality of terminals bent in an L-shape arranged in a line, each terminal having a first end portion for electric connection and a second end portion for connection to a circuit board; an electrically insulating terminal holder including receiving surfaces arranged in a stairs manner, each receiving surface placing a first section of the terminal thereon, and through holes each permitting a second section of the terminal to be inserted therein, the through hole being adjacent to the receiving surface; and a cover which includes hole parts each permitting the first section of the terminal to be inserted therein and joins the terminal holder.
摘要:
Protection apparatus includes: a seat back pivotable between reclined and upright positions; a pivoting-angle adjustment section for adjusting the pivoting angle of the seat back through a motor; a prediction section for predicting an object likely to collide against the vehicle from behind; a control section for controlling the adjustment section, in accordance with a prediction signal generated by the prediction section, to cause the seat back to be pivoted to a practically vertical upright position. The control section is arranged to control the adjustment section in accordance with not only the prediction signal but also an operation signal from a manual seat operating section. When the prediction signal has been received, the control section controls the adjustment section to cause the seat back to be pivoted to the practically vertical upright position at higher speed than when the operation signal has been received.