44results about How to "Prevent a short circuit" patented technology

An electrical motor includes a commutator attached to one side of an armature in an axial direction, and a cover structure member attached to the other side of the armature. The cover structure member includes a cover and plural terminals protruding from an outer peripheral portion of the cover toward the armature. In the electrical motor, by attaching the cover structure member to the armature, the other side of the armature in the axial direction is covered by the cover, and the terminals of the cover structure member are fitted to terminals of coils of the armature. Generally, the cover structure member is made of metal. Therefore, the cover structure member is attached to the armature to have a clearance between a through hole portion of the cover and a shaft, so that the cover is electrically insulated from the shaft.

A method for manufacturing a substrate having built-in components prevents a short circuit caused by the spread of solder or conductive adhesive. Land regions to connect a circuit component and a wetting prevention region surrounding the land regions are formed on one primary surface of a metal foil. Terminal electrodes of the circuit component are electrically connected to the land regions using solder, and an uncured resin is disposed on and pressure bonded to the metal foil and the circuit component, so that a resin layer in which the circuit component is embedded is formed. Subsequently, a wiring pattern is formed by processing the metal foil. The wetting prevention region is a region obtained by roughening or oxidizing one primary surface of the metal foil so as to reduce solder wettability.

The present disclosure relates to a solenoid of an electromagnetic valve where the number of processes can be reduced and breaking of a conductive wire can be suppressed in a simple structure, and the solenoid of the electromagnetic valve according to the present disclosure comprises a conductive wire; a bobbin having a tubular winding portion where the conductive wire is wound around in a coil shape and a flange portion disposed on both end portions of the winding portion; a terminal portion which is disposed on the flange portion and protrudes in a planar shape in a direction perpendicular to the central axis of the bobbin on a radially outer side than the winding portion relative to the central axis, and in which two terminals are provided on a distal end portion side; and two wall portions which are disposed on both sides of the terminal portion in a width direction, stand upright in a central axis direction and face each other, wherein both end portions of the conductive wire are drawn out from the bobbin to the terminal portion, directed toward a radially outer side from a winding portion side of the two wall portions and electrically connected to the terminals.

Provided is an anisotropic conductive film, containing: an insulating layer formed of an insulating resin composition; and a conductive particle-contained layer containing a photo and thermal curing resin composition and conductive particles, the conductive particles being aligned into a monolayer in a portion adjacent to an interface with the insulating layer, in which the conductive particle-contained layer has a degree of cure which is gradually lowered in a thickness direction of the conductive particle-contained layer, from the side where the conductive particles are present to the side where the conductive particles are not present.

A manufacturing method of a clad board includes: sticking a releasing film to a pre-preg sheet; forming a non-through-hole or through-hole in the pre-preg sheet including the releasing film; filling the hole with conductive paste; peeling off the film; and heating and pressing a metal foil onto the pre-preg sheet. The clad board has a smooth face formed on one face or both the faces of the pre-preg sheet, so that the conductive paste is restrained from spreading in an interface between the pre-preg sheet and the releasing film. This structure can avoid short-circuit between circuits and prevent insulating reliability from lowering. As a result, an yield rate is improved, and a reliable circuit board is obtainable.

A battery including: a battery case having a bottom, a side wall, and an upper opening; an electrode assembly; an electrolyte; and a sealing plate covering the upper opening of the battery case accommodating the electrode assembly and the electrolyte, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a gasket is interposed between an opening-edge portion of the battery case and the sealing plate, a first resistive layer is disposed between the opening-edge portion of the battery case and the gasket, or a second resistive layer is disposed between the sealing plate and the gasket. The first or second resistive layer contains a mixture of a particulate inorganic oxide and a binder. This configuration makes it possible to prevent a short circuit between the battery case and the sealing plate even when the gasket is broken.