JP6905428B2 - Power supply device - Google Patents

Description

The present invention relates to a power feeding device installed on a vehicle floor.

Conventionally, when an electrical device is provided on a slide seat of a vehicle, a power supply device that supplies electric power to the electrical device from a power source such as a battery mounted on the vehicle has been used. The power feeding device includes a wire harness for electrically connecting the power supply and the electrical equipment, and a case installed on the vehicle floor and accommodating the wire harness. In this power feeding device, the wire harness is housed in the case or the wire harness is pulled out from the case according to the movement of the slide sheet (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-53748

However, in the conventional power feeding device, there is a concern that the upper wall of the case bends and comes into contact with the wire harness when a load is applied to the case, for example, when the case is stepped on. When the upper wall of the case comes into contact with the wire harness in this way, there is a concern that the movement of the wire harness may be hindered.

Therefore, an object of the present invention is to provide a power feeding device capable of suppressing bending of the upper wall when a load is applied to the upper wall of the case.

In order to solve the above problems, the power supply device of the present invention includes a case mounted on the vehicle floor and a wire harness that can be freely taken in and out of the case, and the case has a base portion having a bottom wall. A cover portion having an upper wall and the upper wall being assembled to the base portion in a direction facing the bottom wall is provided, and the upper wall is at least a plate-shaped upper wall resin made of synthetic resin. It is characterized in that the portion and the upper wall reinforcing portion formed in a plate shape with a material having a higher strength than the upper wall resin portion are laminated.

According to the present invention, the upper wall includes at least an upper wall resin portion formed of a synthetic resin in a plate shape and an upper wall reinforcing portion formed of a material having a higher strength than the upper wall resin portion in a plate shape. , Are laminated, so that it is possible to prevent the upper wall from bending when a load is applied to the upper wall of the case.

It is a side view which shows the slide seat and the seat rail which supported it. FIG. 5 is a plan view showing a state in which the power feeding device according to the first embodiment of the present invention is assembled to the seat rail of FIG. It is a perspective view of the power feeding device of FIG. It is explanatory drawing explaining the wiring route of the wire harness of FIG. It is sectional drawing along the line AA in FIG. It is a perspective view of the reinforcing member of FIG. It is sectional drawing of the power feeding device which concerns on 2nd Embodiment of this invention. It is a perspective view of the reinforcing member of FIG.

The power feeding device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The power feeding device 1A of the present embodiment is mounted on an automobile, distributes a wire harness 2 to the slide seat 11 from the vehicle floor 10 side, and supplies power to electrical equipment (seating sensor, speaker, etc.) attached to the slide seat 11. It is a device that performs. In this embodiment, the wire harness 2 not only supplies power but also transmits signals. Further, the arrow X in FIGS. 1 to 5 is parallel to the front-rear direction of the automobile, the arrow Y is parallel to the vertical direction of the automobile, and the arrow Z is parallel to the width direction of the automobile.

The slide seat 11 is for the occupant of the automobile to be seated, and is slidably attached to the seat rail 9 attached to the vehicle floor 10 as shown in FIG. As a result, the slide seat 11 is slidable with respect to the vehicle floor 10 in the direction of the arrow X.

The power feeding device 1A includes a case 3A attached to the vehicle floor 10 and a wire harness 2 housed in the case 3A so as to be freely put in and taken out. The wire harness 2 includes a plurality of electric wires, a corrugated tube covering the electric wires, and connectors (not shown) attached to both ends of the electric wires.

The case 3A is configured by assembling the base portion 4 and the cover portion 5A, and as shown in FIGS. 2 to 4, the extra length accommodating portion 31 extending in the arrow X direction and the longitudinal length of the extra length accommodating portion 31. It has a power supply side lead-out unit 32 and a load-side lead-out unit 33 connected to one end in the direction.

The extra length accommodating portion 31 is an intermediate portion in the longitudinal direction of the wire harness 2, that is, a portion accommodating the extra length portion in a U-shaped bent state.

The power supply side lead-out portion 32 is a portion that guides the one end side portion of the wire harness 2 in the longitudinal direction from the extra length accommodating portion 31 to the vehicle floor 10 side. The wire harness 2 led out from the power supply side lead-out unit 32 is connected to the floor side wire harness connected to the power supply side by a connector.

The load side lead-out portion 33 is a portion that guides the other end portion of the wire harness 2 in the longitudinal direction to one end in the longitudinal direction of the seat rail 9 by folding back 180 degrees from the extra length accommodating portion 31. The wire harness 2 led out from the load-side lead-out unit 33 is passed through the seat rail 9 and routed toward the slide seat 11, and is connected to the seat-side connector. As the slide sheet 11 slides and the seat position changes, the length of the wire harness 2 led out from the load-side lead-out unit 33 changes. As a result, the wire harness 2 in the extra length accommodating portion 31 is also displaced from the state shown by the solid line in FIG. 4 to the state shown by the dotted line.

The base portion 4 is made of synthetic resin, and constitutes the bottom wall 41, the side wall 42, the rib 43, the power supply side lead-out portion 32, and the load-side lead-out portion 33 that form the extra length accommodating portion 31. Has a part and. As shown in FIG. 4, the bottom wall 41 is formed in a plate shape extending in the direction of arrow X. The bottom wall 41 comes into contact with the vehicle floor 10. The side wall 42 is erected from both ends in the width direction of the bottom wall 41. The rib 43 is provided inside the side wall 42, and as shown in FIG. 5, the rib 43 positions the peripheral wall 52 of the cover portion 5A between the rib 43 and the side wall 42.

The cover portion 5A is mainly made of synthetic resin, and has an upper wall 51 and a peripheral wall 52 that form the extra length accommodating portion 31, and a portion that constitutes the load side lead-out portion 33. The cover portion 5A is assembled to the base portion 4 with the upper wall 51 facing the bottom wall 41. Like the bottom wall 41, the upper wall 51 is formed in a plate shape extending in the direction of arrow X. The upper surface of the upper wall 51 is formed flat, and a floor carpet is superposed on the upper surface. The peripheral wall 52 hangs down from the outer edge of the upper wall 51. The lower end of the peripheral wall 52 is positioned between the side wall 42 and the rib 43 as described above.

Further, the cover portion 5A is formed by insert molding a reinforcing member 6A into a synthetic resin material that constitutes most of the cover portion 5A. The reinforcing member 6A is made of a material having a higher strength than the synthetic resin material of the cover portion 5A. As shown in FIG. 6, the reinforcing member 6A of the present embodiment has a rectangular plate-shaped upper wall reinforcing portion 61. As shown in FIG. 5, the upper wall reinforcing portion 61 is embedded in the synthetic resin material of the upper wall 51. That is, the upper wall 51 has a structure in which the upper wall resin portions 51a and 51b formed of synthetic resin in a plate shape and the upper wall reinforcing portion 61 are laminated.

As described above, the upper wall 51 is formed by laminating the upper wall resin portions 51a and 51b and the upper wall reinforcing portion 61, and has higher strength than the conventional product. Therefore, it is possible to prevent the upper wall 51 from bending when a load (indicated by an arrow F in FIG. 5) is applied to the upper wall 51, for example, when the case 3A is stepped on. Further, since the upper wall 51 is prevented from bending and coming into contact with the wire harness 2, the wire harness 2 can be smoothly moved in the extra length accommodating portion 31.

As a method of increasing the strength of the upper wall 51, in addition to using the reinforcing member 6A, the upper wall 51 may be formed of only synthetic resin to increase its thickness, or a plurality of ribs may be formed on the upper surface of the upper wall 51. It is also possible to provide it. However, when such a configuration is adopted, the case 3A becomes larger in the direction of the arrow Y, and the interior space of the automobile is narrowed. Further, if ribs are provided on the upper surface of the upper wall 51, traces of ribs are likely to be left on the floor carpet, resulting in poor appearance. In these respects, the case 3A of the present embodiment can increase the strength while suppressing the increase in the thickness of the upper wall 51. Further, the upper surface of the upper wall 51 can be flattened, and it is difficult for the floor carpet to have a mark of the case 3A.

Further, as a method of increasing the strength of the upper wall 51, in addition to using the reinforcing member 6A, it is also conceivable to form the upper wall 51 with a material such as GFRP (glass fiber reinforced plastic) or CFRP (carbon fiber reinforced plastic). .. When such a material is used, an increase in the thickness of the upper wall 51 can be suppressed, but a material such as FRP is expensive, and it is necessary to contain a large amount of fibers in order to increase the strength, resulting in poor moldability. .. In these respects, in the case 3A of the present embodiment, high strength can be obtained by using the reinforcing member 6A. Therefore, as the resin used for the cover portion 5A, a material having low strength such as polypropylene, which is inexpensive and has good moldability is used. Can be adopted.

The material of the reinforcing member 6A of the present embodiment is iron (steel). Since the iron reinforcing member 6A has particularly high strength, it is possible to further suppress an increase in the thickness of the upper wall 51. As the material of the reinforcing member 6A, a metal such as an iron alloy, aluminum, or an aluminum alloy may be used in addition to iron, or a fiber reinforced plastic such as GFRP or CFRP may be used.

Further, the upper wall reinforcing portion 61 of the present embodiment is provided with a plurality of through holes 62. As a result, the weight of the cover portion 5A can be reduced.

The power feeding device according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 8. In FIGS. 7 to 8, the same components as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. The power feeding device 1B of the present embodiment includes a case 3B and a wire harness 2 that is housed in the case 3B so as to be freely put in and taken out. The case 3B is configured by assembling the base portion 4 and the cover portion 5B.

The cover portion 5B is formed by insert-molding a reinforcing member 6B into a synthetic resin material that constitutes most of the cover portion 5B. As shown in FIGS. 7 and 8, the reinforcing member 6B has an upper wall reinforcing portion 61 and a peripheral wall reinforcing portion 63 hanging from the four corners of the upper wall reinforcing portion 61. The reinforcing member 6B is obtained by pressing an iron plate. As shown in FIG. 7, the peripheral wall reinforcing portion 63 is embedded in the synthetic resin material of the peripheral wall 52. That is, the peripheral wall 52 has a structure in which the peripheral wall resin portions 52a and 52b continuous from the upper wall resin portions 51a and 51b and the peripheral wall reinforcing portion 63 continuous from the upper wall reinforcing portion 61 are laminated.

As described above, the peripheral wall 52 is formed by laminating the peripheral wall resin portions 52a and 52b and the peripheral wall reinforcing portion 63, and has higher strength than the conventional product. Further, the peripheral wall reinforcing portion 63 enhances the strength of not only the peripheral wall 52 but also the entire cover portion 5B. Therefore, it is possible to further suppress the bending of the upper wall 51 when a load (indicated by an arrow F in FIG. 7) is applied to the upper wall 51, for example, when the case 3B is stepped on. Further, it is possible to prevent the peripheral wall 52 from being damaged by an external force exerted on the peripheral wall 52 when the power feeding device 1B is assembled.

The peripheral wall reinforcing portions 63 of the present embodiment are provided at the four corners of the upper wall reinforcing portion 61 with priority given to weight reduction of the cover portion 5B, but when strength is prioritized, the entire longitudinal direction of the upper wall reinforcing portion 61 is provided. May be provided in the shape of an elongated plate. In that case, a through hole may be provided in the peripheral wall reinforcing portion to reduce the weight.

In the above-described embodiment, the reinforcing members 6A and 6B are insert-molded into the synthetic resin material of the cover portions 5A and 5B, but the "reinforcing member (that is, the upper wall reinforcing portion and the peripheral wall reinforcing portion)" is the cover portion. It may be integrated with the resin portion (that is, the upper wall resin portion and the peripheral wall resin portion) by adhesion or welding, or may be integrated by press fitting or locking.

It should be noted that the above-described embodiment merely shows a typical embodiment of the present invention, and the present invention is not limited to this embodiment. That is, it can be modified in various ways without departing from the gist of the present invention. As long as the configuration of the present invention is still provided by such modification, it is, of course, included in the category of the present invention.

1A, 1B power supply device 2 wire harness 3A, 3B case 4 base part 5A, 5B cover part 10 vehicle floor 41 bottom wall 51 upper wall 51a, 51b upper wall resin part 61 upper wall reinforcing part

Claims (5)

A case that can be attached to the vehicle floor and a wire harness that can be freely put in and taken out of the case are provided.
The case includes a base portion having a bottom wall and a cover portion having an upper wall and the upper wall is assembled to the base portion in a direction facing the bottom wall.
The upper wall is formed by laminating at least an upper wall resin portion formed of a synthetic resin in a plate shape and an upper wall reinforcing portion formed of a material having a higher strength than the upper wall resin portion in a plate shape. A power supply device characterized by becoming. The power feeding device according to claim 1, wherein the upper wall reinforcing portion is made of metal. The power feeding device according to claim 1 or 2, wherein the upper wall resin portion and the upper wall reinforcing portion are integrally molded. The power feeding device according to any one of claims 1 to 3, wherein a through hole is provided in the upper wall reinforcing portion. The cover portion further has a peripheral wall hanging from the outer edge portion of the upper wall.
Any one of claims 1 to 4, wherein the peripheral wall is formed by laminating at least a peripheral wall resin portion continuous from the upper wall resin portion and a peripheral wall reinforcing portion continuous from the upper wall reinforcing portion. The power supply device according to item 1.

Images