Polyalkylene terephthalate resin composition

An insert molded article obtained by performing insert molding using a polyalkylene terephthalate resin composition and an insert member comprising a metal or an inorganic solid, wherein

• the polyalkylene terephthalate resin composition comprises (A) a polyalkylene terephthalate resin, and (B) an acrylic-based core-shell polymer which has an average particle size of 2 μm or greater and in which an amount of a core layer component is at least 85% by mass but not more than 95% by mass relative to a total mass of the core layer component and a shell layer component, an amount of (B) the acrylic-based core-shell polymer is at least 10 parts by mass but not more than 30 parts by mass per 100 parts by mass of (A) the polyalkylene terephthalate resin,
• the polyalkylene terephthalate resin composition further comprises (C) a filler in an amount of at least 10 parts by mass but not more than 100 parts by mass per 100 parts by mass of (A) the polyalkylene terephthalate resin,
• (A) the polyalkylene terephthalate resin comprises a polybutylene terephthalate resin, the core layer component of (B) the acrylic-based core-shell polymer comprises a polymer formed using a C1 to C12 alkyl acrylate, the shell layer component of (B) the acrylic-based core-shell polymer comprises a polymer formed using a C1 to C20 alkyl methacrylate, and
• the polyalkylene terephthalate resin composition is a composition wherein, when the following insert molded article A is produced, the insert molded article A satisfies the following heat shock resistance condition A, wherein
• insert molded article A:
• an insert molded article into which an L-shaped iron plate with 21 mm in a width×90 mm×90 mm and a thickness of 1.6 mm is inserted, and in which a resin portion is an L-shaped plate with 25 mm in a width×70 mm×70 mm and a thickness of 3.6 mm, in which a minimum wall thickness in part of the resin portion is 1 mm, and
• heat shock resistance condition A:
• in a heat shock resistance test using a thermal shock tester in which a process of performing heating at 140° C. for 1 hour and 30 minutes, subsequently lowering a temperature to −40° C. and performing cooling for 1 hour and 30 minutes, and then raising a temperature back to 140° C. is deemed one cycle, a number of cycles performed before cracking appears in the molded article is at least 100, and
• the insert member is a plate-like electrical connection conductor, and the insert member has a ratio of 12.5 or greater for a maximum width relative to a maximum thickness in a cross-section perpendicular to a lengthwise direction of a planar surface of the plate-like conductor.