JP7183945B2 - electric junction box - Google Patents

Description

The present invention relates to electrical junction boxes.

2. Description of the Related Art Conventionally, in a vehicle, an electrical connection box that accommodates electrical components such as relays and fuses has been used (see Patent Document 1, for example). In such an electrical junction box, maintenance such as replacement is improved by centrally arranging various electrical components in the housing. The housing of the electric connection box has, for example, a housing body having an opening and a cover that closes the opening.

JP 2011-125174 A

By the way, in an electrical connection box, electric wires are routed in an internal accommodation space of a housing composed of a housing body and a cover. The electric wires are connected to electrical components such as relays and fuses, and drawn out from outlets provided in the housing. At this time, depending on the distance from the lead-out port, the wires routed may be bent, and when the cover is attached to the housing body, there is a risk that the wires may be caught between the housing body and the cover.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connection box that can suppress the entanglement of electric wires.

The electric junction box of the present disclosure includes a housing having a housing body and a cover that closes an opening of the housing body, and one end side of a plurality of electric wires extends from an electric wire outlet provided in the housing into an accommodation space of the housing. The housing main body has a fixing portion for fixing a binding portion for binding the plurality of electric wires in the housing main body.

According to the electrical connection box of the present invention, it is possible to suppress the electric wire from getting caught.

FIG. 1 is a cross-sectional view of an electric connection box in one embodiment. FIG. 2 is a plan view showing a state in which the cover of the electric connection box is omitted in the same embodiment. FIG. 3 is a perspective view for explaining a fixing portion of the electric connection box in the same embodiment. FIG. 4 is a plan view for explaining a fixing portion of the electric connection box in the same embodiment. FIG. 5 is a plan view for explaining the confirmation hole of the electrical connection box in the same embodiment.

[Description of Embodiments of the Present Disclosure]
First, the embodiments of the present disclosure will be listed and described.
The electrical junction box of the present disclosure is
[1] A housing having a housing body and a cover for closing an opening of the housing body, the housing having a wire lead-out port for drawing a plurality of wires from the inside of the housing to the outside, the housing body comprising and a fixing portion for fixing a binding portion for binding the plurality of electric wires in the housing body.

According to the above aspect, since the fixing portion for fixing the binding portion for binding the plurality of electric wires is provided in the housing main body, the plurality of electric wires can be fixed in the housing main body via the binding portion. As a result, it is possible to suppress the bending of the wires in the housing main body, thereby suppressing the wires from being caught between the housing main body and the cover.

[2] Preferably, the housing body has a connector holding portion that holds a connector, and the fixing portion is provided in the connector holding portion.
According to this aspect, since the plurality of electric wires are fixed by the fixing portion provided in the connector holding portion of the housing main body, the bending of the electric wires in the housing main body can be suppressed. can suppress congestion.

[3] It is preferable that the connector holding portion is configured in a frame shape with a plurality of side walls, and the fixing portion is provided in a manner that fixes the binding portion outside the connector holding portion.
According to this aspect, by fixing the binding portion outside the connector holding portion by the fixing portion, it is possible to suppress interference between the connector and the electric wires connected to the connector and the electric wires bound by the binding portion. As a result, it is possible to suppress a load from being applied to the wires and terminals connected to the connector.

[4] The connector holding portion extends from the inner wall surface of the housing main body, and has a tip portion separated from the inner wall surface, and the fixing portion is the tip portion of the connector holding portion. is preferably provided in

According to this aspect, since the fixing portion is provided at the distal end portion of the connector holding portion, the binding portion and the electric wire fixed by the fixing portion can be fixed in such a manner as to avoid the connector holding portion. Thereby, it is possible to suppress interference between the connector or the electric wire connected to the connector and the electric wire bound by the binding portion.

[5] The binding portion is wound and fixed to the fixing portion, and the connector holding portion is a confirmation for confirming the winding fixed position of the binding portion to the fixing portion from the opening side. It preferably has a hole for use.

According to this aspect, the connector holding portion has the confirmation hole for confirming the winding and fixing position of the binding portion with respect to the fixing portion from the opening side, so that the binding portion is wound and fixed with respect to the fixing portion. You can check if there is

[Details of the embodiment of the present disclosure]
A specific example of the electrical connection box will be described below with reference to the drawings. The present invention is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims. Also, in the drawings, for convenience of explanation, part of the configuration may be exaggerated or simplified.

As shown in FIGS. 1 and 2, the electrical connection box 1 has a box-shaped housing 2 and a plurality of electrical components 3 mounted on the housing 2 . The electrical connection box 1 of this embodiment is used in a vehicle. Here, the X-axis in the XYZ-axes in the drawings is the vertical direction and indicates the height direction of the electric junction box 1, the Y-axis indicates the front-rear direction of the electric junction box 1, and the Z-axis is perpendicular to the XY plane. The width direction of the electrical connection box 1 is shown.

As shown in FIGS. 1 and 2 , the housing 2 has a housing body 10 and a cover 20 attached to the housing body 10 . The housing main body 10 and the cover 20 are, for example, injection molded products made of synthetic resin.

As shown in FIG. 1, the cover 20 has an upper cover 21 and a lower cover 22. As shown in FIG.
The upper cover 21 is attached to the housing body 10 so as to close the opening 10a of the housing body 10 that opens upward. The upper cover 21 and the housing main body 10 can be attached by, for example, snap fitting or screw fastening.

The lower cover 22 is attached to the housing body 10 so as to close the opening 10b of the housing body 10 that opens downward. The lower cover 22 and the housing main body 10 can be attached by, for example, snap fitting or screw fastening.

As shown in FIG. 2 , the housing body 10 has an outer cylindrical portion 11 . The outer cylindrical portion 11 has four continuous side walls 11a, 11b, 11c, and 11d and is configured to have a substantially square cylindrical shape. More specifically, the outer cylindrical portion 11 has side walls 11a and 11b adjacent to each other, side walls 11b and 11c adjacent to each other, side walls 11c and 11d adjacent to each other, and side walls 11d and 11a adjacent to each other. there is Moreover, the side walls 11a and 11c face each other, and the side walls 11b and 11d face each other. Adjacent side walls 11a, 11b, 11c, and 11d are orthogonal to each other and are configured to form a substantially rectangular tubular shape. Here, "perpendicular" does not necessarily have to intersect at 90°, but means a range that is generally regarded as perpendicular. Also in the following description, the same meaning is used unless otherwise specified.

As shown in FIGS. 2 to 5, the housing body 10 has a connector holding portion 12 that holds the connector C. As shown in FIGS. A wire W2 is connected to the connector C. As shown in FIG. The connector holding portion 12 is provided so as to extend from the inner surface of one of the side walls 11a, 11b, 11c, and 11d of the outer cylindrical portion 11 to the opposite side wall 11c. The connector holding portion 12 has four side walls 12a, 12b, 12c, and 12d and is configured to have a rectangular frame shape as a whole. In the connector holding portion 12, the side walls 12a and 12b are adjacent, the side walls 12b and 12c are adjacent, the side walls 12c and 12d are adjacent, and the side walls 12d and 12a are adjacent. Moreover, the side walls 12a and 12c face each other, and the side walls 12b and 12d face each other. The side wall 12a is provided so as to extend with a predetermined width from the side wall 11a of the outer tubular portion. The side walls 12b and 12d are provided so as to extend from both ends of the side wall 12a in the Y-axis direction. The side wall 12c is provided so as to be positioned on the distal end side of the connector holding portion 12 and connect the distal ends of the side walls 12b and 12d. Adjacent side walls 12a, 12b, 12c, and 12d are configured to be orthogonal to each other and form a substantially rectangular tubular shape. Moreover, the side wall 12 c corresponds to the tip of the connector holding portion 12 . The side wall 12c is separated from the inner wall surface 11e of the side wall 11c.

The electrical component 3 of this embodiment is, for example, a fuse module or a relay module. A wire W1 is connected to each electrical component 3, respectively. The electric wire W1 is led out from the inside of the housing 2 to the outside through a wire lead-out port 2a provided in the housing 2. As shown in FIG. The wire outlet 2a is provided on one side of the housing body 10 in the X-axis direction (lower cover 22 side). More specifically, the wire outlet 2a is provided on the side wall 11d near the side wall 11c. The housing body 10 has a semi-cylindrical guide portion 13 that protrudes from the outer surface of the side wall 11d of the housing body 10 around the wire outlet 2a. The projecting direction of the guide portion 13 is set in a direction in which the electric wire W1 can be easily routed.

As shown in FIGS. 2 to 5, the housing body 10 of this embodiment has a fixing portion 14 for inserting and fixing a binding band CT as a binding tool. Specifically, the fixing portion 14 is provided on the side wall 12 c that is the tip portion of the connector holding portion 12 . Moreover, the fixed part 14 is a communication hole formed in the side wall 12c. The fixed portion 14 is provided so as to communicate between a surface 15a on one side in the X-axis direction of the side wall 12c and a surface 15b on one side in the Z-axis direction of the side wall 12c. In other words, the fixed portion 14 has an opening 14a opening on one side in the X-axis direction in the side wall 12c and an opening 14b opening on one side in the Z-axis direction in the side wall 12c. is communicated with. That is, the fixed portion 14 is a communication hole having an L-shaped cross section.

A binding band CT that binds a plurality of electric wires W1 binds the electric wires W1 after the plurality of electric wires W1 connected to the electrical component 3 are bundled together by a tape T. The binding position of the electric wire W1 by the tape T and the binding position of the electric wire W1 by the binding band CT match. Further, the binding range of the wires W1 (the range covering the wires W1) by the tape T is wider than the binding range (the range covering the wires W1) of the binding band CT. That is, by winding and fixing the binding band CT together with the electric wire W1 around the fixed portion 14, the plurality of electric wires W1 are bound within the binding range of the tape T. FIG.

As shown in FIG. 5, the connector holding portion 12 of this embodiment has a confirmation hole 16 for confirming the winding fixing position of the binding band CT to the fixing portion 14 from the opening 10b side of the upper cover 21 side. The confirmation hole 16 is provided in the surface 15c of the side wall 12c of the connector holding portion 12 on the other side in the X-axis direction. The confirmation hole 16 is a communication hole formed along the X-axis direction and communicating with the fixed portion 14 . By connecting the confirmation hole 16 to the fixing portion 14, the binding band CT in the wound state can be confirmed. Here, the housing 2 of this embodiment is an injection-molded product made of a generally black or gray resin material. For this reason, it is possible to easily confirm through the confirmation hole 16 by using, for example, a white binding band CT.

The operation of this embodiment will be described.
In the electric connection box 1 of this embodiment, a fixing portion 14 for fixing the binding band CT is provided inside the housing body 10 . As a result, the plurality of electric wires W1 are fixed inside the housing body 10 via the binding band CT.

Here, the electric wire W1 bound by the binding band CT is connected to the electrical component 3 provided on the back side of the connector holding portion 12 when the electric wire lead-out port 2a is used as a starting point. Therefore, the electric wire W1 is naturally routed in the vicinity of the connector holding portion 12. As shown in FIG. Therefore, by providing the fixing portion 14 on the side wall 12c of the connector holding portion 12, the electric wire W1 and the binding band CT can be fixed without difficulty. Further, the wire lead-out port 2a and the electrical component 3 of the present embodiment are in a positional relationship shifted in the X-axis direction. The fixing portion 14 of the connector holding portion 12 is set between the wire outlet 2a and the electrical component 3 in the X-axis direction. Therefore, by providing the fixing portion 14 at a position through which the electric wire W1 passes when the electric wire W1 is routed inside the housing body 10, the electric wire W1 and the binding band CT can be fixed without difficulty.

The effect of this embodiment will be described.
(1) Since the fixing portion 14 for fixing the binding band CT for binding the plurality of electric wires W1 is provided inside the housing body 10, the plurality of electric wires W1 can be fixed inside the housing body 10 via the binding band CT. . As a result, bending of the wire W1 in the housing main body 10 can be suppressed, so that the wire W1 can be suppressed from being caught between the housing main body 10 and the cover 20 (lower cover 22). The cover 20 (lower cover 22) can be easily attached to the housing body 10 by suppressing the electric wire W1 from being caught. Moreover, since the movement of the electric wire W1 can be suppressed, the generation of abnormal noise can be suppressed.

(2) By fixing the binding band CT outside the connector holding part 12 by the fixing part 14, the connector C or the electric wire W2 connected to the connector C and the electric wire W1 bound by the binding band CT do not interfere with each other. can be suppressed. Accordingly, application of a load to the wires W2 and the terminals connected to the connector C can be suppressed.

(3) Since the fixing portion 14 is provided on the side wall 12c, which is the tip portion of the connector holding portion 12, the binding band CT and the electric wire W1 fixed by the fixing portion 14 can be fixed in such a manner as to avoid the connector holding portion 12. can. Thereby, it is possible to suppress interference between the connector C and the electric wire W2 connected to the connector C and the electric wire W1 bound by the binding band CT. In addition, since interference between the lower cover 22 and the electric wire W1 is suppressed, it is possible to suppress the lower cover 22 from being pushed by the electric wire W1.

(4) The connector holding portion 12 has a confirmation hole for confirming the winding and fixing position of the binding band CT to the fixing portion 14 from the opening side, so that the binding portion is wound and fixed to the fixing portion. You can check if there is

It should be noted that the above embodiment can be implemented with the following modifications. The above embodiments and the following modifications can be combined with each other within a technically consistent range.

- In the above-described embodiment, the side wall 12c, which is the tip of the connector holding portion 12, is provided with the fixing portion 14. However, the position and number of the fixing portions 14 can be changed within the housing body 10 without being limited to this. It may be changed as appropriate. At this time, it is preferable to provide a fixing portion in the wiring route of the longest wire in the housing body 10 among the plurality of wires W1 inserted through the wire outlet 2a.

- Although the electrical junction box 1 of the above embodiment has a single wire outlet 2a, it may have a plurality of outlets. Also, the position of the wire lead-out port 2a may be changed as appropriate.
- Although not specifically mentioned in the above-described embodiment, the electric wire W1 drawn out from the electric wire outlet 2a together with the guide portion 13 may be bound with a binding band, tape, or the like.

- In the above-described embodiment, the configuration in which the guide portion 13 is provided around the wire lead-out port 2a of the electric connection box 1 is adopted, but a configuration in which the guide portion 13 is omitted may be adopted.
- In the above-described embodiment, the housing body 10 has a square tubular shape.

- In the above-described embodiment, the plurality of electric wires W1 are bundled together by the tape T and then bound by the binding band CT, but a configuration in which the tape T is omitted may be adopted.

- Although the electrical junction box 1 of the above embodiment has a plurality of electrical components 3, the number of electrical components 3 may be changed arbitrarily.

REFERENCE SIGNS LIST 1 electrical connection box 2 housing 2a wire outlet 3 electrical component 10 housing main body 10a, 10b opening 11e inner wall surface 12 connector holding portion 12a side wall 12b side wall 12c side wall (tip)
12d... Side wall 14... Fixing part 16... Confirmation hole 20... Cover 21... Upper cover 22... Lower cover C... Connector CT... Binding band (binding part)
W1, W2 . . . electric wires.

Claims (3)

A housing having a housing body and a cover closing an opening of the housing body,
The housing has an electric wire lead-out port for drawing out a plurality of electric wires from the inside of the housing to the outside,
The housing body has a fixing part for fixing a binding part for binding the plurality of electric wires in the housing body,
The housing body has a connector holding portion that holds a connector,
The fixing portion is provided in the connector holding portion,
The connector holding portion extends from the inner wall surface of the housing body, and has a tip portion separated from the inner wall surface,
The electrical connection box , wherein the fixing portion is provided at the tip portion of the connector holding portion . A housing having a housing body and a cover closing an opening of the housing body,
The housing has a wire outlet for drawing out a plurality of wires from the inside of the housing to the outside,
The housing body has a fixing part for fixing a binding part for binding the plurality of electric wires in the housing body,
The housing body has a connector holding portion that holds a connector,
The fixing portion is provided in the connector holding portion,
The binding portion is wound and fixed to the fixing portion,
The electrical connection box, wherein the connector holding portion has a confirmation hole for confirming a winding fixed position of the binding portion with respect to the fixing portion from the opening side. The connector holding portion is configured in a frame shape with a plurality of side walls,
3. The electrical junction box according to claim 1 , wherein said fixing portion is provided in a manner to fix said binding portion outside said connector holding portion.

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