Plate fitted resin molded article and method of molding it
AssigneeSumitomo Wiring Systems, Ltd.
InventorsAkihito Maegawa, Shinyu Nagashima
Life of this patent
Estimating the term…
Abstract
A hydraulic switch body (1) has a metal plate (10) and a resin main portion (20) molded on a first surface (13) of the metal plate (10). A hydraulic switch (2) and busbar circuits (30) are mounted in recesses (21) of the main portion (20). Grooves (22) connect the recesses (21) and the outer peripheral edge of the main portion (20) to release a tensile stress created at the outer surface (14) of the main portion (20) due to a difference between shrinkage ratios of resin and metal during the resin molding to prevent the hydraulic switch body (1) from warping. The lengths of the grooves (22) are shortened by using the recess portions (21). Therefore, the grooves (22) are less likely to hinder the arrangement of other structural parts.
Claims17
A plate fitted resin molded article, comprising:
- a plate;
- a resin main portion molded to be integral to the plate, the main portion being formed with at least one recess;
- at least one electronic part mounted in the recess;
- and
- at least one groove formed in the main portion and extending from a peripheral edge of the recess to an outer peripheral edge of the main portion.
A plate-fitted resin molded article, comprising:
- a metal plate with opposite first and second surfaces;
- and
- an elongated resin main portion defining a longitudinal direction and having a plurality of peripheral edges extending substantially along the longitudinal direction, the main portion being molded to be integral to the second surface of the plate so that the first surface of the plate is exposed, the main portion being formed with at least first and second recesses for receiving at least first and second electronic parts, at least first and second grooves formed in the main portion and extending respectively from the first and second recesses to at least one of peripheral edges that extends substantially along the longitudinal direction of the main portion.
A method of molding a plate fitted resin molded article, comprising:
- providing a plate;
- and
- molding a resin main portion to be integral to the plate and formed with at least one recess for receiving at least one electronic part and with at least one groove extending between a peripheral edge of the recess and an outer peripheral edge of the main portion.
Dependencies are inferred from the claim text.