Shindengen Electric Manufacturing

A sealing structure of an electrical component case, the structure including: an electrical component case having a bottomed-box-shaped case main body with an opening portion, and a cover that occludes the opening portion, the electrical component case housing an electrical component, the electrical component case being formed with a notch at a peripheral wall of the case main body; an attachment component fitted into the notch from a side of the opening portion; and a resilient seal member interposed between an edge portion of the notch and the attachment component.

[Problem] Provided is a motor regenerative control method that performs regenerative control without creating an adaptive map value.[Solution] The invention relates to a motor regenerative control method that allows a negative current to flow to a motor such that a regenerative current flows to a battery to charge the battery. The motor regenerative control method includes: setting a target regenerative current value based on a state of the battery; allowing the negative current to flow to the motor such that the regenerative current is close to the target regenerative current value and measuring the regenerative current while allowing the regenerative current to flow to the battery; performing feedback control to allow the negative current to flow to the motor so as to eliminate a difference between a regenerative current value and the target regenerative current value; determining whether the regenerative current value is increasing or decreasing; maintaining the feedback control when it is determined that the regenerative current value is increasing; and when it is determined that the regenerative current value is not capable of reaching the target regenerative current value and is decreasing, detecting a maximum regenerative current value based on a history of the regenerative current value and adjusting and controlling the current flowing to the motor such that the regenerative current value reaches the maximum regenerative current value.

There are provided an electronic component that can be manufactured without reducing production efficiency while preventing a resin from leaking when a bobbin is sealed with the resin, and a mold for sealing the electronic component with the resin. The invention relates to an electronic component including a bobbin on a coil is mounted; a connecting terminal 31 to which one end of the coil is connected and which is fixed to the bobbin; and a mold resin 41 with which the bobbin, the coil, and a part of the connecting terminal 31 are sealed. The bobbin includes an exposed portion 21a exposed from the mold resin 41, and an end portion 31b of the connecting terminal 31 opposite to an end portion 31a to which the one end of the coil is connected protrudes outward from the exposed portion 21a.

A power conversion device (1) includes: a primary-side substrate (31) having a primary-side mounting portion (312), at which a primary-side electronic component is mounted, and a primary-side winding portion (311); a secondary-side substrate (32) having a secondary-side mounting portion (322), at which a secondary-side electronic component is mounted, and a secondary-side winding portion (321), the secondary-side winding portion (321) being disposed coaxially with the primary-side winding portion (321); a pair of insulating members (361, 362) that are joined together, and that are disposed such that one winding portion among the primary-side winding portion (311) or the secondary-side winding portion (321) is interposed therebetween; and a sealing resin (33) that seals the primary-side winding portion (311), the secondary-side winding portion (321), and the pair of insulating members (361, 362), wherein at least one of the pair of insulating members (361, 362) has a plurality of convex portions (R1, R4) at a face facing the one winding portion.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …