Electric junction box

Abstract

The invention relates to an electric junction box which can prevent mounting error of a distribution box on condition that the shape of a shielding box is square. The electric junction box is provided with the components of: the shielding box (10) which is internally provided with an accommodating space, the distribution box (20) which is accommodated in the accommodating space, and a box cover (40) which covers the space of the shielding box. The distribution box side is provided with a distribution box side interlock connector (20L). The box cover side is provided with a box cover side interlock connector (40L). The shielding box side is provided with three bolt fastening bosses (10B1, 10B2,10B3). The distribution box side is provided with gasket-equipped bolt holes (20B1,20B2,20B3) at the positions which correspond with the bolt fastening bosses. Furthermore the three bolt fastening bosses (10B1,10B2,10B3) are respectively arranged at the positions which are not in left-and-right symmetry in the shielding box (10).

Description

technical field [0001] The present invention relates to an electrical junction box for accommodating a junction box (junction box) in which electrical components such as fuses and relays are installed, and particularly relates to an electrical junction box that realizes optimal positioning of the junction box. Background technique [0002] Conventionally, electric vehicles including hybrid vehicles have mounted electrical junction boxes to electrically connect a storage battery, an inverter, and the like (see Patent Document 1). [0003] The electrical junction box as the object of the present invention contains: a shielding box, a junction box accommodated in the shielding box, and electrical components such as fuses and relays in the junction box and electronic components such as external batteries and inverters. In-vehicle wiring to which the device is electrically connected. [0004] 〈Existing electrical junction box〉 [0005] Image 6 It is a perspective view of an ex...

AI Technical Summary

Problems solved by technology

However, since the bolt fastening bosses 10B at the four corners are arranged at symmetrical positions, when the junction box 20' is square when viewed from above, the fixed points at the four corners have no directionality. Even if the junction box 20' is wrongly rotated by 90 degrees or 180 degrees and accommodated in the shielding box 10', it cannot be detected, so that there may be a wrong installation of the junction box 20' in which the bolt B is tightened in this wrongly assembled state.

[0032] "Problem 2: Wasted space and increased weight"

In this case, since the bottom surface of the shielding box 10' needs to have a wall thickness greater than or equal to the tap depth of the fixing bolts, this structure has problems of waste of space and increase in weight.

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