Electrical junction box

Abstract

To provide an electrical junction box having a new structure that includes a plurality of electrical component mounting sections that are open in an upper surface, such that (1) the structure is provided with a drainage groove for preventing accumulation of water without requiring any special space, and (2) the structure can eliminate a problem of heat generation from electrical components. An electrical junction box includes a first and second electrical component mounting section units. A plurality of electrical component mounting sections are arranged in straight lines to from the first and second units, respectively. The first and second electrical component mounting segment units are separated apart from each other by a given distance and are arranged in parallel with each other. A heat radiation drainage groove is provided between opposed portions of peripheral walls that constitute the adjacent first and second units. The heat radiation drainage groove is provided in at least one end with an end opening that extends to ends of the first and second units and is open in an outer peripheral surface.

Description

Background technique [0001] This application claims priority from Japanese Patent Application No. 2009-156376 filed in Japan on June 30, 2009, the entire disclosure of which is hereby incorporated by reference. [0002] Exemplary embodiments relate to an electrical junction box mounted on a motor vehicle or the like, and more particularly, to an electrical junction box provided with a plurality of electrical component mounting portions opened in a top surface. Background technique [0003] Hitherto, in order to improve the efficiency of wiring, electrical junction boxes have been installed in engine rooms and the like of motor vehicles. The electrical junction box houses current-carrying parts such as lead wires, bus bars or current-carrying plates as required, and houses various electrical parts such as relays, fuses, controls, for connecting external current-carrying circuits to internal current-carrying circuits connector. [0004] In the case where replaceable electric...

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned electrical junction box requires an additional space for installing the drain groove in addition to the space for installing the electrical component mounting portion.

This will lead to the problem of increasing the size of the electrical junction box

[0008] In particular, in the case where the electrical junction box is provided with a plurality of electrical component mounting portions on the upper surface, it will be more difficult to obtain a space for disposing the drain groove, and will cause another problem: heat generation due to the plurality of electrical components question

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