JP2003250214A - Electric connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent breakdown of a clamp holder provided in an electric connection box and also to elevate a freedom in setting a position of fixing with a clamp. <P>SOLUTION: A part of sidewall 13a of a connector coupling 13 provided at an upper wall 11a of a case 11 is projected from an external surface of the case 11, and also the other part of the sidewall 13a is projected into inside of the case 11, and also a bottom wall 13b of the connector coupling 13 is provided to block tip of an inside projection, while a stack 19 of a bus bar 17 to be stored inside the case 11 and an insulating plate 18 is positioned on the side of the bottom wall 13b of the connector coupling 13, and a part of the case upper wall 11a in a section not provided with the connector coupling 13 is bent in tiers as far as the position of the bottom wall 13b of the connector coupling 13, and a clamp holder 14 for fixing of a wire harness is projected upward from the tip of a bend 16 positioned at the peripheral wall 11b of the case, thus the quantity of projection of the clamp holder 14 from the upper wall 11 of the case is made small. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection box, and more particularly, to a clamp holding portion projecting from a case of the electric connection box via a clamp. Attach it. 2. Description of the Related Art Conventionally, as shown in FIG. 5, an electric junction box 1 such as a junction box for an automobile has a clamp hole 4a formed on an outer surface of a case 2 provided with a connector coupling portion 3 and the like. The clamp 5 attached to the wire harness W / H to be routed along the outer surface of the junction box case is inserted and locked in the locking hole 4a of the clamp holding portion 4. , Wire harness W
/ H may be held by the junction box 1 in some cases. The clamp holder 4 protrudes from the upper surface of the case 2, and the amount of protrusion is required to be equal to or larger than a predetermined size in view of strength requirements. [0004] If the clamp holding portion 4 projects as described above, the clamp holding portion 4 may easily interfere with other members during transportation or the like, and may be damaged. Further, the position of the locking hole 4 a of the clamp holding part 4 requires a required dimension a from the base end of the clamp holding part 4. Therefore, the position of the locking hole 4,
That is, the holding position of the wire harness is the distance a from the case 2.
The wire harness cannot be routed close to the case, and there is a problem that the wiring space for the wire harness is restricted. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a degree of freedom in design such as preventing a clamp holding portion provided in an electric junction box from being damaged and allowing a wire harness to be routed close to a case. The goal is to be able to have SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a connector coupling portion provided on an upper wall and / or a lower wall of a case, in which a projecting side of a peripheral wall projects from an outer surface of the case. The base of the peripheral wall protrudes into the case, and the bottom wall of the connector coupling portion is provided so as to close the tip of the protruding portion on the inside. Positioned on the bottom wall side of the connector coupling portion, part of the upper wall and / or lower wall of the case where the connector coupling portion is not provided is bent stepwise to the bottom wall position of the connector coupling portion, A clamp holding portion for fixing the wire harness is projected upward or / and downward from a tip of the bending portion located on the peripheral wall of the case, and the clamp holding portion is projected from the upper wall and / or lower wall of the case. An electric junction box is provided, wherein the amount of protrusion of the clamp holding portion is reduced. The bottom wall of the connector connecting portion of the electric connection box projects into the case, and the laminated body of the bus bar and the insulating plate housed inside the case is housed in contact with the bottom wall of the connector connecting portion. As a result, a dead space is formed between the upper and / or lower wall of the case where the connector coupling portion is not provided and the laminated body. According to the present invention, a clamp holding portion is provided in the case by effectively utilizing the above-mentioned wasted space (dead space), and a portion of the upper wall and / or lower wall of the case where no connector coupling portion exists is provided. The concave portion is bent and stepped up to the bottom wall position of the connector coupling portion, and is directed upward and / or downward from the case peripheral wall at the tip of the refraction portion (that is, at the same height as the bottom wall position of the connector coupling portion). The clamp holding part is projected. As a result, the amount of protrusion of the clamp holding portion from the upper or lower wall of the case can be reduced by the depth of the connector coupling portion from the upper or lower wall of the case. That is, the amount of protrusion of the clamp holding portion protruding from the outer shape of the case can be reduced. Therefore, when the electric junction box is transported, the clamp holding portion can be made hard to be damaged by the external interference material. In particular, if the tip of the clamp holding portion is set to be equal to or less than the height of the tip of the connector connecting portion, it is difficult for other members to interfere with the clamp holding portion, and the damage prevention effect can be enhanced. Also, since the amount of protrusion of the clamp holding portion can be reduced, the wiring harness can be routed at a position close to the side of the case. it can. Furthermore, if the height of the lower surface of the bending portion is the same as the height of the bottom wall of the connector connection portion, the dead space inside the junction box can be effectively used to the maximum. Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the electric junction box according to the present embodiment is a junction box 1 for an automobile.
The bus bar 17 and the insulating plate 18 are stacked and arranged in an internal space formed by the upper case 11 and the lower case 12. The upper case 11 is provided with a plurality of connector connecting portions 13 on an upper wall 11a, and the peripheral wall 13a of the connector connecting portion 13 has an upper portion formed on the upper wall 11a as shown in FIG. The lower case is made to protrude into the upper case 11 while being made to protrude further. Also,
A bottom wall 13b is continuously closed at the lower end of the peripheral wall 13a protruding into the inner side of the upper case 11, a tab insertion hole 13b-1 is formed in the bottom wall 13b, and a bus bar laminated inside the case is formed. The 17 tabs 17a are projected. A stepped bent portion 16 is recessed in a part of the upper wall 11a of the upper case 11 where the connector coupling portion 13 is not provided, and the tip of the bent portion 16 is extended to the peripheral wall 11b of the upper case. The clamp holding portion 14 is extended and bent upward from the position of the peripheral wall to continuously protrude. The clamp holding portion 14 is provided with a triangular reinforcing portion 15 which is continuous with the upper wall 11a on both sides thereof, and a locking hole 14a having a long axis in the vertical direction is provided at the center of the clamp holding portion 14. I have. With the above configuration, as shown in FIG. 2B, if the height of the clamp holding portion 14 is L1 and the amount of protrusion of the clamp holding portion 14 from the outer surface of the upper case upper wall 11a is L2, L1> L2, and the protrusion amount L2 of the clamp holding portion 14 can be reduced, and the amount of protrusion of the clamp holding portion from the outer shape of the case can be reduced. Therefore, when the junction box 10 is transported, the clamp holding portion 14 does not easily interfere with other members, and damage can be prevented. The bent portion 16 in which the upper wall 11a of the upper case 11 is recessed is provided by effectively utilizing the dead space S shown in FIG. 2, so that it is insulated from the bus bar 17 accommodated in the junction box 10. It does not affect the accommodation space of the laminate 19 of the plate 18. Further, by making the lower surface of the bending portion 16 the same height as the bottom wall 13b of the connector connecting portion 13, the bus bar 17 in the uppermost layer of the laminated body 19 is not only the bottom wall 13b of the connector connecting portion 13 but also Since the laminate 19 is also pressed and held by the lower surface of the bending portion 16, the laminate 19 can be stably held in a horizontal state in the junction box 10 and can be prevented from being inclined. Next, attachment of the wire harness to the junction box 10 will be described. FIG. 3 (A)
As shown in FIG. 1, a band clamp 20 is wound around and fixed to the wire harness W / H routed along the vehicle body.
The band clamp 20 includes a main body 2 having a band fastening portion.
0a, a band portion 20 protruding from a side edge of the main body portion 20a
b, a shaft portion 20c protruding from an end surface of the main body portion 20a,
A blade portion 20d projecting from both ends of the shaft portion 20c in a folded shape on both sides, and a locking portion 20 provided at the front end of the blade portion 20d.
d-1 and a dish 20e provided at the base end of the shaft 20c. As shown in FIG. 3 (B), the blade portion 20 of the band clamp 20 is inserted into the locking hole 14a of the clamp holding portion 14.
The wire harness W / H is fixed along the outer surface of the junction box 10 by inserting d and locking the locking portion 20d-1. Since the center C of the locking hole 14a of the clamp holding portion 14 of the junction box 10 is set below the case upper wall 11a as shown in FIG. 2B, it is shown in FIG. As described above, the wire harness W / H can be positioned and held within the height range of the junction box 10. Further, as shown in FIG. 3 (C), since the locking hole 14a of the clamp holding portion 14 has an elliptical shape, the state in which the band clamp 20 is locked,
The rotation of the band clamp 20 with respect to the clamp holding portion 14 can also be prevented. In this embodiment, only one bending portion 16 and one clamp holding portion 14 are provided. However, a plurality of the bending portions 16 and the clamp holding portion 14 may be provided by utilizing the empty space on the upper surface 11a of the upper case 11, that is, the dead space S. Good. Further, in the case of a junction box in which the connector coupling portion is provided not only on the upper case 11 side but also on the lower case 12 side, the above-described bending portion and the clamp holding portion are provided by utilizing the dead space generated on the lower case 12 side. Is also good. In this case, as shown in FIG. 4, when the wire harness W / H is vertically arranged on the side of the junction box 10, the upper and lower clamp holding portions 14-1 and 14
-2. Further, in this embodiment, the clamp is a band clamp, but may be a substrate-type clamp which is fixed to a wire harness by a tape. Further, the clamp holding portion supports the clamp attached to the wire harness, but may be used for attaching a clamp fixed to the panel. As is apparent from the above description, the present invention makes use of the dead space generated when the connector connecting portion provided in the case is protruded into the case. By recessing the upper or lower wall of the case and projecting the clamp holder from the recessed position, the amount of protrusion of the clamp holder from the outer shape of the case is reduced. Therefore, when the electric junction box is transported or the like, the clamp holding portion can be less likely to interfere with the outer member, and damage can be prevented from occurring. Further, since the degree of freedom of the setting position of the clamp holding portion with respect to the case is increased, the degree of freedom of the wiring position of the wire harness can be increased within the range.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electric junction box according to an embodiment of the present invention. FIG. 2 is a sectional view of an electric junction box. FIGS. 3A and 3B are diagrams illustrating the attachment of a clamp to a clamp holding portion of an electric junction box, and FIG. 3C is a diagram illustrating a relationship between a locking hole of the clamp holding portion and a clamp; FIG. 4 is a schematic diagram showing a modification. FIG. 5 is a perspective view of a conventional electric junction box. [Description of Signs] 10 Electrical connection box (junction box) 11 Upper case 11a Upper wall 11b Peripheral wall 12 Lower case 13 Connector coupling section 13a Peripheral wall 13b Bottom wall 14 Clamp holding section 14a Locking hole 15 Reinforcement section 16 Refraction section 17 Bus bar 18 Insulation Plate 20 Band clamp W / H Wire harness

Claims (1)

Claims 1. A projecting side of a peripheral wall of a connector connecting portion provided on an upper wall and / or a lower wall of a case is projected from an outer surface of the case, and a base side of the peripheral wall is projected into the case. While the bottom wall of the connector coupling portion is provided so as to close the tip of the protruding portion on the inner side, the laminated body of the bus bar and the insulating plate housed inside the case is located on the bottom wall side of the connector coupling portion, A part of the upper wall and / or lower wall of the case where the connector connection portion is not provided is bent stepwise to the bottom wall position of the connector connection portion, and from the tip of the bending portion located on the peripheral wall of the case. The clamp holding portion for fixing the wire harness is projected upward and / or downward so that the amount of projection of the clamp holding portion is smaller than the upper wall and / or lower wall of the case. An electrical junction box.