Metal core substrate and electrical connection box using said metal core substrate

Abstract

To provide an electrical connection box that uses a metal core substrate that can prevent bending. [Solution] The electrical connection box, which performs power distribution in an automobile, is provided with a metal core substrate (1) that is provided with: a rectangular core metal layer (2) wherein two core metal plates (2a, 2b) are disposed with a slit-shaped gap (3) therebetween; and an insulating layer that fills in the gap (3) and covers the surface of the core metal plates (2a, 2b), thus integrating the core metal plates (2a, 2b). Power from a battery is input to core metal plate (2a), and power from an alternator is input to core metal plate (2b). The gap (3) has: a first linear section (31) that extends linearly from one side of the core metal layer (2); a second linear section (32) that extends linearly from another side of the core metal layer (2), is parallel to the imaginary extended line (P) of the first linear section (31), and does not line up on the same line as the first linear section (31); and a square-U-shaped section (33).

Description

technical field [0001] The present invention relates to a metal core substrate and an electrical junction box for distributing electric power using the metal core substrate. Background technique [0002] Various electronic devices are installed on the vehicle. Electrical junction boxes are arranged at appropriate positions in the vehicle for distributing electric power to various electronic devices. The structure of the electrical junction box varies depending on the type of vehicle. For example, there is an electric junction box for distributing electric power using a metal core substrate as shown in Patent Document 1. [0003] Additionally, as in Figure 8 As shown in , there is known an electrical junction box 510 in which a core metal plate 502 of a metal core substrate 501 is used not only as a heat sink but also as a part of a power distribution circuit. The electrical junction box 510 distributes power from the battery and the alternator to a plurality of electroni...

AI Technical Summary

Problems solved by technology

[0015] However, when Figure 9 When the straight slit 603 is formed on the core metal plate 602 to divide the core metal plate 602 into two parts like the electrical junction box 610 shown, there is the following problem: the metal core substrate 601 may be installed on the metal core The electronic components on the substrate 601 and the weight of the metal core substrate 601 itself act on the slit 603 whose strength is lower than that of other parts. Figure 9 curved as shown in

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