JP2016013002A - Electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connection box which secures a space for storing work excess length of a wire harness.SOLUTION: A partition wall 7 which partitions a case body 2 into a first storage area 8 and a second storage area 9 is formed in the case body 2. Electronic components such as a fuse and electric wires connected with the electronic components are stored in the first storage area 8. A wire harness 10 inserted from a bottom part of the case body 2 and an electronic component side connector with which a connector of the wire harness 10 is connected are stored in the second storage area 9. In the case body 2, an entry prevention wall 11 extends from the partition wall 7 to the bottom part side and prevents the electric wires connected with the electronic components from entering into the second storage area 9 side.

Description

  The present invention relates to an electrical junction box mounted on a vehicle such as an automobile.

  A vehicle such as an automobile is equipped with an electrical junction box containing a relay and a fuse for supplying power to various electrical components.

  The electrical junction box includes, for example, a case main body having openings at the top and bottom, and a lower cover attached to the case main body from an opening below the case main body. A plurality of connectors connected to the ends of the wire harness are inserted into the case body from the lower opening, and a middle part of the wire harness is fixed to the case body, and then the lower cover is attached to the case body. Then, the wire harness is pulled out from the upper opening of the case body, the circuit board on which the plurality of relays are mounted, and the relay module including the plurality of connectors are arranged on the upper side of the case body, and the connector of the wire harness is the connector of the relay module Fitted. Thereafter, the relay module is accommodated in the case body.

JP 2009-20292 A

  In order to fit the connector of the wire harness to the connector of the relay module, an extra working length is provided in the wire harness in the case body. Therefore, a space for storing (absorbing) the work surplus length of the wire harness in a state where the relay module is housed in the case body must be secured in the case body. However, since a large number of electric wires connected to relays and fuses are accommodated in the case body, it is difficult to secure a space for accommodating the work harness length of the wire harness.

  An object of the present invention is to provide an electrical junction box that can secure a space for storing the work surplus length of a wire harness.

  In order to achieve the above object, an electrical junction box according to the present invention includes a case body, a first housing area and a case body that are formed in the case body and house an electronic component and an electric wire connected to the electronic component. A partition wall that partitions a wire harness inserted from the bottom of the first housing and a second housing area that houses an electronic component-side connector to which the connector of the wire harness is connected; And an entry prevention wall for preventing entry from the accommodation area into the second accommodation area.

  According to this configuration, the partition wall that partitions the first accommodation area and the second accommodation area is formed in the case body. The first accommodation area accommodates electronic components such as fuses and electric wires connected to the electronic components. The second accommodation area accommodates a wire harness inserted from the bottom of the case body and an electronic component side connector to which the connector of the wire harness is connected.

  The connection work between the connector of the wire harness and the electronic component side connector in the case body is difficult, so when connecting the connector of the wire harness and the electronic component side connector, the wire harness is connected to the case body. Is pulled out from the bottom to the opposite side. And after the connector of a wire harness and the electronic component side connector are connected, a wire harness is returned in a case main body with an electronic component side connector. For this work, a work surplus length is provided in the wire harness in the case body.

  In the case body, the entry preventing wall extends from the partition wall to the bottom side, and the entry preventing wall prevents the electric wire connected to the electronic component from entering the second accommodation area side. Therefore, it can suppress that the space in a 2nd accommodation area is eroded by the electric wire connected to the electronic component, and can secure the space which accommodates the work surplus length of a wire harness in a 2nd accommodation area.

  When the wire harness is routed across the space on the bottom side with respect to the first accommodation area and the second accommodation area, the entry preventing wall may have a notch for passing the wire harness. preferable.

  Thereby, even if the approach prevention wall is provided, the wiring path | route of a wire harness can be ensured.

  According to the present invention, in the case body, the ingress prevention wall extends from the partition wall to the bottom side, and the ingress prevention wall prevents the electric wire accommodated in the first accommodation area from entering the second accommodation area side. Has been. Therefore, a space for storing the work surplus length of the wire harness can be secured in the second accommodation area. As a result, the workability of the work of storing the wire harness in the second storage area is improved, so that the labor required for assembling the electrical junction box can be reduced.

It is a perspective view of the electrical junction box concerning one embodiment of the present invention. It is a perspective view of an electric junction box and a wire harness, and shows the state where a wire harness was routed. It is a perspective view of an electric junction box and a wire harness, and shows the other example of wiring of a wire harness.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of an electrical junction box 1 according to an embodiment of the present invention.

  The electrical connection box 1 is disposed, for example, in an engine room of a vehicle for supplying power to various electrical components mounted on the vehicle such as an automobile.

  The electrical junction box 1 includes a case body 2 made of resin. The case body 2 includes side walls 3 and 4 that face each other in the first direction, and side walls 5 and 4 that face each other in the second direction perpendicular to the first direction and are spanned between both ends of the side walls 3 and 4 in the second direction. 6. One side of the third direction orthogonal to both the first direction and the second direction is the bottom side of the electrical junction box 1. Hereinafter, the bottom side of the electrical junction box 1 is simply referred to as “bottom side”. FIG. 1 shows an electrical junction box 1 with the bottom facing upward.

  A partition wall 7 is formed in the case body 2. The partition wall 7 extends in the second direction and extends from the middle portion of the case body 2 in the third direction to the side opposite to the bottom side.

  A first accommodation area 8 is provided between the partition wall 7 and the side wall 3 on one side in the first direction. A second accommodation area 9 is provided between the partition wall 7 and the side wall 4 on the other side in the first direction. In other words, the first storage area 8 and the second storage area 9 that are partitioned by the partition wall 7 are provided on one side and the other side in the first direction with respect to the partition wall 7. Although not shown, the first accommodation area 8 accommodates a large number of fuses and electric wires connected to the fuses. The second housing area 9 houses a wire harness 10 (see FIG. 2) and a relay module (not shown) including an electronic component side connector to which a connector (not shown) of the wire harness 10 is connected. .

  An intrusion prevention wall 11 is formed in the case body 2. The entry prevention wall 11 extends from the partition wall 7 to the bottom side and extends in the second direction. A space is provided between the entry prevention wall 11 and the side walls 5 and 6 in the second direction. Further, a notch 12 is formed at the end of the intrusion prevention wall 11 on the side wall 6 side by notching the ingress prevention wall 11 from the end edge on the bottom side into a substantially U shape.

  Further, a harness holding groove 13 is formed at the end of the side wall 4 on one side (side wall 5 side) in the second direction by cutting out in a substantially semicircular arc shape from the edge on the bottom side. A substantially semi-cylindrical harness holding portion 14 extends outward from the peripheral edge of the harness holding groove 13.

  FIG. 2 is a perspective view showing a state in which the wire harness 10 is routed in the electrical junction box 1.

  The wire harness 10 includes a trunk line 21 and a plurality of branch lines 22 and 23. The trunk line 21 is composed of a bundle of a large number of electric wires, and the bundle of electric wires is bound by, for example, winding an adhesive tape 24. Each branch line 22, 23 is a bundle of electric wires that are partially drawn from the main line 21. A connector (not shown) is connected to the ends of the branch lines 22 and 23.

  The trunk line 21 of the wire harness 10 is passed through the harness holding groove 13 and the harness holding portion 14, and is passed between the entry prevention wall 11 and the side wall 5 on one side in the second direction, with respect to the first accommodation area 8. It is drawn to the space on the bottom side. Then, one branch line 22 of the wire harness 10 is passed through the notch 12 of the entry preventing wall 11 and drawn to the second accommodation area 9. Further, the other branch line 23 of the wire harness 10 is passed between the entry preventing wall 11 and the side wall 6 on the other side in the second direction, and is routed to the second accommodation area 9. Thereby, the branch lines 22 and 23 can be routed across the space on the bottom side with respect to the first accommodation area 8 and the second accommodation area 9 without crossing each other.

  After the wiring harness 10 is routed, the trunk line 21 is fixed to the case body 2 by winding an adhesive tape around the trunk line 21 and the harness holding portion 14 so as to surround them. Then, a lower cover (not shown) is attached to the case body 2 from the bottom side, and the bottom side of the case body 2 is closed. Since the main line 21 is fixed to the harness holding groove 13 and the harness holding part 14 while being fixed thereto, the lower cover is attached to the case main body 2 without biting the main line 21 between the lower cover and the case main body 2. be able to.

  Thereafter, the connectors at the ends of the branch lines 22 and 23 are pulled out of the case body 2. For example, a relay board (not shown) including a circuit board on which a plurality of relays are mounted and a plurality of electronic component side connectors is provided. 2, the connectors at the ends of the branch lines 22 and 23 are fitted to the electronic component side connectors. Thereafter, the relay module and the branch lines 22 and 23 are accommodated in the case body 2.

  In this way, after the connectors at the ends of the branch lines 22 and 23 are connected to the electronic component side connector, the branch lines 22 and 23 are returned to the case body 2 together with the electronic component side connector. For this work, an extra work length is provided in the branch lines 22 and 23 in the case body 2.

  In the case body 2, the ingress prevention wall 11 extends from the partition wall 7 to the bottom side, and the ingress prevention wall 11 allows the electric wire accommodated in the first accommodation area 8 to enter the second accommodation area 9 side. It is prevented. Therefore, it can suppress that the space in the 2nd accommodation area 9 is eroded by the electric wire currently accommodated in the 1st accommodation area 8, and the space which accommodates the work extra length of the branch lines 22 and 23 in the 2nd accommodation area 9 Can be secured.

  Further, the ingress prevention wall 11 is formed with a notch 12 through which the branch line 22 is passed. Thereby, in the case main body 2, even if the approach prevention wall 11 is provided, the routing route of the branch line 22 is securable.

  As mentioned above, although one Embodiment of this invention was described, this invention can also be implemented with another form.

  For example, as shown in FIG. 3, the branch line 22 of the wire harness 10 is drawn from the trunk line 21 in the vicinity of the harness holding groove 13, and is not routed through the space on the bottom side with respect to the first accommodation area 8. 2 may be inserted into the receiving area 9. In this case, the notch 12 may be omitted.

  In addition, various design changes can be made to the above-described configuration within the scope of the matters described in the claims.

DESCRIPTION OF SYMBOLS 1 Electrical junction box 2 Case main body 7 Partition wall 8 1st accommodating area 9 2nd accommodating area 10 Wire harness 11 Ingress prevention wall 12 Notch 21 Trunk line 22 Branch line 23 Branch line

Claims (2)

The case body,
The first housing area that is formed in the case main body and accommodates the electronic component and the electric wire connected to the electronic component, the wire harness inserted from the bottom of the case main body, and the electronic to which the connector of the wire harness is connected A partition wall that partitions the second storage area in which the component-side connector is stored;
An electrical junction box including an entry preventing wall extending from the partition wall to the bottom side and preventing the electric wire from entering the second accommodation area from the first accommodation area.   The notch for passing the wire harness routed across the space on the bottom side with respect to the first accommodation area and the second accommodation area is formed in the entry prevention wall. The electrical junction box according to 1.

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