Abstract: An electrical apparatus includes a circuit structure, a case provided with a bottom panel and a case peripheral wall, and a cover provided with a cover panel and a cover peripheral wall. At least a part of an inner surface of the cover peripheral wall and an outer surface of the case peripheral wall face one another, thereby forming a housing space and housing the circuit structure within the housing space. A groove is formed in at least one of (i) the entire periphery of the outer surface of the case peripheral wall or (ii) the entire periphery of the inner surface of the cover peripheral wall. This configuration provides a structure that suppresses infiltration of liquid to the inside of the case, and suppresses adhesion of liquid to the circuit structure.

Abstract: An electrical apparatus includes a circuit structure, a case provided with a bottom panel and a case peripheral wall, and a cover provided with a cover panel and a cover peripheral wall. At least a part of an inner surface of the cover peripheral wall and an outer surface of the case peripheral wall face one another, thereby forming a housing space and housing the circuit structure within the housing space. A groove is formed in at least one of (i) the entire periphery of the outer surface of the case peripheral wall or (ii) the entire periphery of the inner surface of the cover peripheral wall. This configuration provides a structure that suppresses infiltration of liquid to the inside of the case, and suppresses adhesion of liquid to the circuit structure.

Abstract: A circuit board fixation structure includes a screw, an inner tubular section having a threaded hole into which the screw is threaded, and an outer tubular section. The outer tubular section includes an abutted section the head of the screw, and a pressing section. A large-diameter section is fixed relative to an outer peripheral surface of the inner tubular section, and has a diameter dimension is greater than an outer dimension of the inner tubular section. A circuit board is provided with a through hole with an inner diameter dimension that is greater than an outer dimension of the inner tubular section and smaller than the outer dimension of the large-diameter section. The circuit board is interposed between the pressing section of the outer tubular section and the large-diameter section in a state in which the inner tubular section is inserted through the through hole.

Abstract: A method for manufacturing a capacitive operation device includes the steps of: preparing a capacitance sensing member including a base film, a sensing electrode formed on the base film, a cover film, and an adhesive layer; preparing an operation panel having a recessed portion having a shape that overlaps an outer edge of the sensing electrode in a stacking direction of the operation panel and the capacitance sensing member; disposing the operation panel and the capacitance sensing member so as to face each other; and bonding the capacitance sensing member to the back surface of the operation panel by pressing the capacitance sensing member against the back surface of the operation panel. In the bonding step, the capacitance sensing member and the operation panel are bonded together while a gas therebetween is being directed to the recessed portion.

Abstract: An electrical connection box is provided in which a printed circuit board provided with a lateral connection-type connector is housed in a case, and a cover is attached to the case, and this electrical connection box has a novel structure in which a reduction in size and manufacturing cost can be achieved while still reliably protecting the connector. A surface mount-type connector is provided on a printed circuit board as the lateral connection-type connector, and the case and the cover are provided with incorrect-connection-prevention projection portions that, in the case where the cover is brought close to the case upside down relative to the proper orientation, prevent incorrect attachment of the cover by abutting against each other before the cover abuts against the connector.

Abstract: In a current detection device for detecting current in a busbar, a reduction in device size may be realized by employing a small magnetic core. The prevention or reduction of excessive heat generation by the busbar, the facilitation of the attachment task, and a reduction in the amount of space required for the attachment task may also be realized. The folded-back busbar is U-shaped with a bar-shaped penetration portion that passes through a hole portion of a magnetic core, two bar-shaped extension portions, and two flat plate-shaped penetration portions. The width of each terminal portion is larger than the widths of the penetration portion and the extension portions. An insulating casing supports the magnetic core, a Hall element, and the folded-back busbar in a fixed positional relationship, with the two terminal portions being exposed to the outside.

Abstract: A method for manufacturing a capacitive operation device includes the steps of: preparing a capacitance sensing member including a base film, a sensing electrode formed on the base film, a cover film, and an adhesive layer; preparing an operation panel having a recessed portion having a shape that overlaps an outer edge of the sensing electrode in a stacking direction of the operation panel and the capacitance sensing member; disposing the operation panel and the capacitance sensing member so as to face each other; and bonding the capacitance sensing member to the back surface of the operation panel by pressing the capacitance sensing member against the back surface of the operation panel. In the bonding step, the capacitance sensing member and the operation panel are bonded together while a gas therebetween is being directed to the recessed portion.

Abstract: An electrical connection box is provided in which a printed circuit board provided with a lateral connection-type connector is housed in a case, and a cover is attached to the case, and this electrical connection box has a novel structure in which a reduction in size and manufacturing cost can be achieved while still reliably protecting the connector. A surface mount-type connector is provided on a printed circuit board as the lateral connection-type connector, and the case and the cover are provided with incorrect-connection-prevention projection portions that, in the case where the cover is brought close to the case upside down relative to the proper orientation, prevent incorrect attachment of the cover by abutting against each other before the cover abuts against the connector.

Abstract: A current detection busbar has a penetrating portion that penetrates a hole portion of a magnetic core and two flat plate-like terminal portions that are respectively continuous with opposite sides of the penetrating portion. The terminal portions have a larger width and a smaller thickness than the penetrating portion. An insulating casing has busbar holes that are penetrated by the respective terminal portions of the current detection busbar. An edge portion of each busbar hole is constituted by flat surfaces that face the terminal portion with a gap left between each flat surface and the terminal portion, a plurality of projecting portions that sandwich the terminal portion while coming into contact with the front and back surfaces of the terminal portion, and curved surfaces that face respective corner portions of the terminal portion with a gap left between each curved surface and the corresponding corner portion.

Abstract: In a current detecting apparatus, a container member which constitutes a insulating housing includes an element supporting portion, a connector supporting portion, and a substrate fixing portion. The element supporting portion is formed with a depression to which a magnetism detecting portion of a Hall element is fitted. The connector supporting portion achieves positioning of a body portion of the connector by a fitting structure in three-dimensional directions where a lead terminal of a connector extends in parallel with lead terminals of the Hall element. The substrate fixing portion is a portion where a circuit board is fixed at one point. The body portion of the connector is also fixed to the circuit board with a screw.

Abstract: In a current detecting apparatus, a container member includes a substrate fixing portion, a core inner-edge positioning portions, and a lid member. The substrate fixing portion is a portion formed at a position outside an outer edge of a magnetic core, and to which a first portion of a circuit board is fixed. Two of the core inner-edge positioning portions come into contact with the magnetic core, and come into contact with the circuit board. The first portion, the second portion, and the third portion surround a magnetoelectric device, such as a Hall element, that detects a magnetic flux in a gap portion of the magnetic core. The lid-side substrate holding portion, with the container-side substrate holding portion, holds the circuit board tightly.

Abstract: The size of a current detecting apparatus is reduced by employing a small magnetic core, and problems caused by excessive heat generation and vibrations of a bass bar are prevented. In a current detecting apparatus, a current detecting bass bar includes a through portion penetrating through a hollow portion of a magnetic core, and plate-shaped terminal portions continuing from both sides of the through portion. The through portion is formed to have a thickness larger than that of the terminal portions.

Abstract: A current detection busbar has a penetrating portion that penetrates a hole portion of a magnetic core and two flat plate-like terminal portions that are respectively continuous with opposite sides of the penetrating portion. The terminal portions have a larger width and a smaller thickness than the penetrating portion. An insulating casing has busbar holes that are penetrated by the respective terminal portions of the current detection busbar. An edge portion of each busbar hole is constituted by flat surfaces that face the terminal portion with a gap left between each flat surface and the terminal portion, a plurality of projecting portions that sandwich the terminal portion while coming into contact with the front and back surfaces of the terminal portion, and curved surfaces that face respective corner portions of the terminal portion with a gap left between each curved surface and the corresponding corner portion.

Abstract: A current detector for detecting a current that flows through a busbar is provided. A current detector includes a magnetic core, a current detection busbar, and an insulating casing. The current detection busbar is composed of a member obtained by shaping both end portions of a rod-shaped conductor that penetrates the insulating casing and the hole portion of the magnetic core so that the two end portions are wider than an intermediate portion between the two end portions. The two shaped end portions form two terminal portions that are respectively to be joined to other upstream and downstream busbars. The insulating casing has busbar holes that are formed in a shape conforming to the contour of the intermediate portion of the current detection busbar and penetrated by the intermediate portion.

Abstract: In a current detection device for detecting current in a busbar, a reduction in device size may be realized by employing a small magnetic core. The prevention or reduction of excessive heat generation by the busbar, the facilitation of the attachment task, and a reduction in the amount of space required for the attachment task may also be realized. The folded-back busbar is U-shaped with a bar-shaped penetration portion that passes through a hole portion of a magnetic core, two bar-shaped extension portions, and two flat plate-shaped penetration portions. The width of each terminal portion is larger than the widths of the penetration portion and the extension portions. An insulating casing supports the magnetic core, a Hall element, and the folded-back busbar in a fixed positional relationship, with the two terminal portions being exposed to the outside.

Abstract: An operation apparatus inhibits separation of a holding member for holding an operation knob from a circuit board. A holding member holding a rotation operation knob so as to be rotatable includes a latched portion capable of insertion through a through-hole formed on a circuit board and also capable of flexure deformation in a specified line parallel to the circuit board. On a rear end of the latched portion, a latched projection is provided projecting to a first direction of the specified line. Accompanying flexure deformation of the latched portion in a second direction opposite to the first direction, the latched projection is able to pass through the through-hole by displacing a predetermined amount in the second direction. The rear cover includes a deformation regulator contacting the latched projection from the second direction and regulates displacement of the latched projection in the second direction to less than the pre-determined amount.

Abstract: A dial switch includes a rotary portion which has an uneven peripheral surface, a plunger, a holding portion which holds the plunger such that the plunger is movable in a reciprocating manner, and a coil spring which biases the plunger. The holding portion extends along a moving path of the plunger, and has a guide surface that surrounds the plunger from the outside. The plunger includes: an outer wall which has an outer peripheral surface which is arranged close to the guide surface and an inner peripheral surface having an inner diameter larger than an outer diameter of the coil spring, and an inner shaft which has a rear end at a position inside the outer wall and in front of a rear end of the outer wall and allows the coil spring to be mounted on an outer side thereof.

Abstract: A rotation operating device is provided on a circuit board for detecting a rotation operation and imparting feedback for the rotation operation to a user while avoiding a significant increase in necessary surface area of the circuit board. The rotation operating device includes a rotatable rotation operating member; a rotation detection switch provided on the circuit board and detecting rotation of the rotation operating member; and an operational feedback imparting mechanism for imparting operational feedback to the user. The rotation operating member includes an inner circumferential surface surrounding an interior space, and both the rotation detection switch and the operational feedback imparting mechanism are positioned within this interior space. The rotation operating member includes a switch operator operating the rotation detection switch, and an operational feedback generator formed on an inner circumferential surface of the rotation operating member at a position away from the switch operator.

Abstract: An operating device provides for mutually independent rotation for two rotation operating knobs. First and second rotation operating knobs rotating centered on a rotation axis are provided as well as a holding member including a rotation operating knob holder holding the rotation operating knobs so as to be capable of independent rotation. The rotation operating knob holder includes a first and second support surfaces having substantially circular tubular shapes centered on the rotation axis. The first rotation operating knob includes first switch operators causing a first switch element to output a signal and a first sliding surface having a substantially circular tubular shape capable of sliding over the first support surface. The second rotation operating knob includes second switch operators causing a second switch element to output a signal and a second sliding surface having a substantially circular tubular shape capable of sliding over the second support surface.

Abstract: A current detecting device is readily attached to a wire while preventing variation in current detection accuracy. A current detecting device has a core module and an element module, the core module having a core support that supports a magnetic core, the element module having an element support that supports a Hall element therein. In a position of a gap of the magnetic core in the core module, a wire insertion path is provided, to which the element support is fitted. Two end portions of the magnetic core and the Hall element are positioned by first and second contact surfaces of the core support and by a third contact surface of the element support. The two modules are connected so as to be movable relative to each other and are fixated by a lock mechanism in a state where the element support is fitted to the wire insertion path.