JP4949954B2 - Harness wiring structure of power feeding device - Google Patents

Description

  The present invention relates to a harness wiring structure of a power feeding device that leads a wire harness from a harness extra length absorption protector to a protector mounting side and connects it to an auxiliary machine or the like.

  6 to 7 show an embodiment of a conventional power feeding device (see Patent Document 1).

  The power supply device 51 is arranged vertically on the slide door 41 of the automobile, and is made of a synthetic resin protector 50 that flexibly accommodates the wire harness 43, and a metal that urges the wire harness 43 upward in the protector. The leaf spring 44 is provided.

  The protector 51 includes a protector base (represented by reference numeral 50) and a protector cover (not shown). The protector base 50 and the protector cover protrude from a vertical wall portion 52, a curved peripheral wall, and a vertical wall portion 53. After the wire harness 43 and the leaf spring 44 are assembled on the inside, they are locked and fixed to each other. The bending restriction wall 54 restricts the minimum bending diameter of the leaf spring 44 and the wire harness 43. The inside of the bending restriction wall 54 is a through hole 56.

  The base end portion of the leaf spring 44 is fixed to the rear side of the bending restricting wall 54 of the protector 50 together with the wire harness 43 (the fixing portion is indicated by reference numeral 59), and the synthetic resin cap is fixed to the tip end of the leaf spring 44. 49, the wire harness 43 is slidably supported. The protector 50 has its bracket 66 and the like fixed to the door panel 41a with bolts. In the specification, the front-rear, up-down, left-right directions coincide with the vehicle direction.

  The wire harness 43 is configured by covering a plurality of electric wires 43a with a corrugated tube 43b made of synthetic resin, and a rear end portion of the corrugated tube 43b is fixed to the protector 50 by tape winding or the like. The corrugated tube 43b has a concave groove and a ridge in the circumferential direction alternately in a bellows shape, and exhibits good flexibility.

  One wire portion 43a of the wire harness 43 is led out from the rear opening 57 of the protector 50 and connected to an auxiliary device such as an ECU (Electronic Control Unit) disposed on the door panel 41a on the slide door side. The corrugated tube portion 43b is slidably routed from the elongated lower opening 55 of the protector 50 to the fixture 58 on the vehicle body 47 side through the crossing space 46 (FIG. 7), and the electric wire portion extends from the fixture 58 to the vehicle body. It is connected to a wire harness (not shown) on the side (power supply side). In the crossing space 46, each electric wire 43a of the wire harness 43 is safely protected from interference with the outside, water droplets, dust and the like by the corrugated tube 43b.

  FIG. 6 shows the fully closed state of the slide door 41, and FIG. When the sliding door 41 is fully closed, the wire harness 43 is pulled rearward, and when the sliding door 41 is fully opened, the wire harness 43 is pulled forward. In particular, when the sliding door 41 is half open, the wire harness 43 tends to loosen downward. However, it is biased upward by the leaf spring 44 to absorb the slack (excess length), thereby preventing drooping and pinching caused by the slack.

In each of the power feeding devices 51, the wire harness 43 is fixed to the rear side of the protector 50 and led out from the front side through the lower opening 55 to the vehicle body side so as to be swingable, but the wire harness 43 is connected to the front side of the protector 50. For example, Patent Document 2 discloses a configuration in which the vehicle body is slidably led out from the rear side through the lower opening 55 to the vehicle body side. Also in this embodiment, it is known that the wire harness 43 is led out to the slide door side through the inner space 56 of the center bending restriction wall 54 of the protector 50.
JP 2006-347525 A (FIGS. 1 and 2) JP 2001-354085 A (FIGS. 4 and 7)

  However, in the conventional harness wiring structure of each power feeding device, the wire portion 43a of the wire harness 43 led out from the protector 50 is normally connected to an auxiliary device, but the auxiliary device is connected to the door panel 41a. Due to the arrangement, there was a problem that the connector connection workability was poor. In addition, if the wire portion 43a is set long, the connector connection workability is improved. However, when the protector 50 is fixed to the door panel 41a, the wire portion 43a is sandwiched between the protector 50 and the door panel 41a and may be damaged. There was no concern.

  In view of the above, the present invention provides a harness routing structure for a power feeding device that can be securely connected to the mounting side with good workability without sandwiching the wire harness between the protector and the mounting side. Objective.

In order to achieve the above object, a harness routing structure for a power feeding device according to claim 1 of the present invention accommodates a wire harness in a protector so that the wire harness can be bent, and one portion of the wire harness is opened from the opening of the protector. In the harness routing structure of the power feeding device that is movably routed to one connection portion side and connects the other portion of the wire harness to the other connection portion on the protector mounting side, the other portion of the wire harness is The extra length portion is routed along the harness lead-out portion of the protector, the other portion is connected to the other connection portion in a state where the extra length portion is extended, and the extra length portion is compressed in the compressed state. the protector is fixed to the protector mounting side, the harness lead-out portion is formed on the inside of the harness bending regulation wall of the protector, the harness bending regulation wall is formed in a substantially circular, said harnesses Harness lead-out portion is provided in the annular interior of the bending regulation wall, the harness bending the other part is inserted in the wire harness notch was opened regulation wall, said excess length portion is housed in the harness lead-out portion Features.

With the above configuration, the other part of the wire harness is pulled and the surplus length portion is extended to connect to the other connection portion on the attachment side with good workability, and then the surplus length portion is compressed along the harness lead-out portion. The protector is fixed to the attachment side without being sandwiched between the attachment side and the protector with the other part shortened. It is preferable that the surplus portion is bent into a waveform or a spiral. The compression operation of the surplus length part may be performed manually by the operator, or may be performed by the elasticity of the surplus length part itself. For example, one connection part is a power supply side, and the other connection part is a power supply side auxiliary machine or the like. The harness lead-out portion is preferably formed in a plate shape, a cylindrical shape, or the like.
Further, the harness lead-out portion is formed in a space-saving manner using the inner space of the harness bending regulating wall in the protector, and the other portion of the wire harness is connected to the other connection portion on the back side of the protector. The minimum bending diameter of the wire harness is restricted along the bending restriction wall.

  The harness wiring structure of the power feeding device according to claim 2 is characterized in that, in the harness wiring structure of the power feeding device according to claim 1, the extra length portion is compressed by its own restoring force.

  With the above configuration, when the protector is attached to the attachment side, the other part of the wire harness is automatically shortened by the elasticity of the extra length part, so that the shortening operation is performed reliably, and the attachment side and the protector It is possible to reliably prevent the other part from being sandwiched therebetween.

The harness wiring structure of the power feeding device according to claim 3 is the harness wiring structure of the power feeding device according to claim 1 or 2 , wherein the harness lead-in portion following the harness leading portion is directed from the protector toward the protector mounting side. It is provided.

  By the said structure, the other part of a wire harness is smoothly introduce | transduced in a harness derivation | leading-out part from the harness guide part at the time of attachment of the protector to an attachment side. It is preferable that the harness lead-in portion is formed in a reverse trumpet shape that gradually increases in diameter from the protector mounting side to the protector.

According to the first aspect of the present invention, the other part of the wire harness can be reliably connected to the attachment side with good workability without being sandwiched between the protector and the attachment side. This reduces the man-hours for attaching the power supply device including the protector to the attachment side, prevents the other part of the wire harness from being damaged, and improves the reliability of the constant power supply.
Further, by effectively utilizing the space inside the harness bending restriction wall of the protector, the harness lead-out portion is formed large (wide), and the extra length portion of the other portion of the wire harness is formed long, thereby It is possible to save space, increase the extra length absorption efficiency, and improve the connection workability of the other part to the other connection part and the workability of attaching the protector to the attachment side.

  According to the second aspect of the present invention, the other part of the wire harness is automatically shortened, so that it is surely prevented from being caught on the mounting side, and the other part is pulled into or pushed into the protector. This eliminates the need for work and improves the protector mounting workability.

According to the third aspect of the invention, when the protector is attached to the attachment side, the other part of the wire harness is smoothly introduced (guided) from the harness lead-in part into the harness lead-out part, thereby improving the attachment workability of the protector. be able to.

  1 to 3 show an embodiment of a harness wiring structure for a power feeding device according to the present invention. Constituent parts that are the same as or similar to those in the prior art are denoted by the same reference numerals and detailed description thereof is omitted.

  As shown in FIG. 1, the harness wiring structure of the power feeding device 1 is provided with a substantially annular bending restriction wall 54 on a protector base (a substitute for reference numeral 50 ′) of a protector 50 ′ made of synthetic resin, and the inside of the bending restriction wall 54. Is provided with a harness lead-out wall (lead-out portion) 57 ', and the wire portion (the other portion) 43a of the wire harness 43 is not fixed along the harness lead-out wall 57', and is bent into a substantially wave shape, thereby surplus length portion 43a. ′ Is formed.

  As shown in FIG. 2, by extending the surplus length portion 43a ', the electric wire portion 43a is extended from the conventional one (indicated by a chain line) and between the seat portion 65 of the door panel (protector mounting side) 41a than the conventional one. When a large work space 69 is secured and the electric wire portion 43a is connected to the door panel side ECU (the other connecting portion) 64 by a connector, the protector 50 'is assembled to the seat portion 65 as shown in FIG. By pulling the electric wire portion 43a into the protector and shortening the electric wire portion 43a between the harness lead-out wall 57 'and the ECU 64, it is possible to prevent the electric wire portion 43a such as a chain line from being caught.

  As shown in FIG. 1, the protector 50 'is composed of a protector base (instead of 50') and a protector cover (not shown) as in the prior art, and the protector base 50 'and the protector cover have a vertical wall 52 and a curved shape. The plate spring 44 having the cap (harness support) 49 and the wire harness 43 are assembled to the protector base 50 ′ with the protector cover removed, and the protector cover is closed to supply power. A device 1 is configured.

  It is preferable that the wire surplus portion 43a ′ is previously provided with a hook that elastically returns to a waveform or a spiral. In this way, it is not necessary for the operator to consciously push the electric wire portion 43a into the protector 50 'in order to prevent the electric wire portion 43a of the chain line in FIG. The long part 43a 'is automatically drawn into the protector.

  When the above-described return rod is not attached to the electric wire portion 43a, when the protector 50 'shown in FIG. 3 is attached, the electric wire portion 43a is inserted into the inner space 56 of the bending restriction wall 54 of the protector 50' from the outside. It is pushed into the 50 'harness lead-out wall 57'. Alternatively, with the protector cover (not shown) opened, the protector base 50 ′ can be fixed to the seat 65 while the wire portion 43 a is pulled into the protector base 50 ′, and the protector cover can be closed.

  The electric wire portion 43 a is inserted into a corrugated tube (one portion) 43 b of the wire harness 43 in the protector, and the corrugated tube 43 b is fixed to the rear side of the bending regulating wall 54 together with the base end portion 44 a of the leaf spring 44. The corrugated tube portion 43b is routed from the elongated lower opening 55 of the protector 50 'to the harness fixture 58 (see FIG. 6) on the vehicle body side, and the electric wire portion led out from the corrugated tube 43b is not shown on the vehicle body side. A connector is connected to the wire harness (one connecting portion).

  The harness lead-out portion 57 ′ of the protector 50 ′ is formed in, for example, a plate shape or a rectangular cylinder shape, and at least the base end portion 62 a of the harness lead-out portion 57 ′ is an opening in which the bending restricting wall 54 is cut out. It communicates with space. If harness lead-out part 57 'is formed in a rectangular cylinder shape, electric wire surplus part 43a' can be stably accommodated in the space in the rectangular cylinder part in the state bent in the shape of a wave or a spiral. As the harness lead-out portion 57 ′, for example, a similar plate portion is provided on a protector cover (not shown) so as to face the cross-section L of the protector base 50 ′ or a U-shaped plate portion (in place of 57 ′). It is also possible to form the harness lead-out portion 57 'by joining both the plate portions (57') when closed. These harness lead-out portions 57 'are integrally molded with the protector 50'.

  4 and 5 show a power feeding device 1 ′ in which a harness guiding portion 70 having a diameter reduced to a reverse trumpet shape is integrally provided on the harness lead-out portion 57 ′. Since other configurations are the same as those in FIG. 1, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  The harness lead-in portion 70 is formed in a short cylindrical shape or a spatula having a curved cross section (when the harness lead-out portion 57 ′ is cylindrical, the harness lead-in portion 70 is formed in a cylindrical shape, and the harness lead-out portion 57 ′ is plate-shaped. In some cases, the harness lead-in portion 70 is formed in a curved spatula (plate) shape, and the wire portion 43a connected to the ECU 64 is smoothly guided into the harness lead-out portion 57 ', and the wire extra length as indicated by the arrow A The part 43a ′ is smoothly and reliably pulled in or pushed.

  In each of the embodiments described above, the power feeding device 1, 1 ′ includes a metal leaf spring (elastic member) 44 disposed in the protector as in the prior art, and a synthetic resin cap ( (Harness support tool) 49, and a wire harness 43 that is stably supported by the cap 49 while being bent in the protector.

  FIG. 1 corresponds to when the sliding door of FIG. 7 of the conventional example is opened (fully opened or immediately before), the corrugated tube portion 43b of the wire harness 43 is pulled forward in the protector, and the leaf spring 44 is directed downward. It bends and urges the corrugated tube portion 43b upward. The wire portion 43a of the wire harness 43 is routed in a waveform or spiral along the harness lead-out portion 57 'regardless of the movement of the corrugated tube portion 43b. The operation of the corrugated tube portion 43b when the sliding door is closed or half-opened is the same as the conventional one.

  In the above-described embodiment, the leaf spring 44 is disposed at the rear portion of the protector 50 '. However, in a power feeding device (not shown) in which the leaf spring 44 is disposed at the front portion of the protector 50', contrary to FIG. It is also effective to provide the harness lead-out portion 57 ′ and the harness guide portion 70 in the protector 50 ′. Further, instead of the ECU 64, the wire harness 43 can be connected to an electrical junction box or other auxiliary machines or devices for supplying power by connectors.

  Further, instead of the leaf spring 44, it is also possible to use an elastic member such as a coil spring or a rod spring (not shown). Further, the wire harness 43 can be pulled into the protector 50 ′ with its own rigidity (restorability) without using these elastic members 44.

  Further, as the wire harness 43, a plurality of insulation-coated wires 43a are attached with a flexible mesh tube or the like (not shown) instead of the corrugated tube 43b, or the plurality of wires 43a are taped without using the protection tube 43b. It is also possible to use it by roughly winding it. It is also possible to cover the electric wire portion 43a with a mesh tube or the like.

  In the above-described embodiment, the wire harness 43 is swingably led out from the long opening 55 of the protector 50 '. For example, the wire harness 43 is twisted into a substantially circular protector by an urging force such as a torsion spring. Applying the harness lead-out portion 57 ′ and the guide portion 70 in a power feeding device (not shown) that is housed in a retractable manner and that allows the wire harness 43 to be pulled out and retracted from a narrow opening (not shown) of the protector. Is also possible.

  In the above-described embodiment, the protector 50 ′ is disposed vertically (vertically) on the slide door 41. However, for example, the protector 50 ′ is disposed horizontally (horizontal) on the slide door or the vehicle body. Or, it can be arranged vertically on the vehicle body 47 (see FIG. 6). When protector 50 'is arranged on the vehicle body side, corrugated tube portion 43b of wire harness 43 is routed on the slide door side, and electric wire portion 43a is routed on the vehicle body side (power supply side). Further, the protector 50 ′ can be arranged other than the slide door of the automobile, for example, on a slide door of an automobile slide seat, a vehicle other than the automobile, an inspection device, or the like.

  Further, the above-described configuration is effective not only as a harness wiring structure of the power feeding device but also as a power feeding device itself, a power feeding structure, a power feeding harness wiring method, and the like.

It is a front view which shows one Embodiment of the harness wiring structure of the electric power feeder which concerns on this invention. It is a side view which shows the state (harness wiring method) which attaches an electric power feeder to a slide door. It is a side view which shows the state which attached the electric power feeder to the slide door. It is a front view which shows other embodiment of the harness wiring structure of an electric power feeder. It is a side view which shows the state which similarly attached the electric power feeder to the slide door. It is a perspective view of the state where one form of the conventional electric supply device was attached to the slide door. It is a perspective view which similarly shows the state at the time of opening of a sliding door.

Explanation of symbols

1,1 'Feeder 41a Door panel (protector mounting side)
43 Wire harness 43a Electric wire part (the other part)
43a 'extra length part 43b corrugated tube part (one part)
50 'protector 54 harness bending restriction wall 55 opening 57' harness lead-out portion 64 ECU (the other connection portion)
70 Harness guide part

Claims (3)

The wire harness is accommodated in the protector so that it can be bent, and one part of the wire harness is movably routed from the opening of the protector to one connecting part side, and the other part of the wire harness is connected to the protector mounting side. In the harness routing structure of the power feeding device connected to the other connecting portion, the other portion of the wire harness is routed with an extra length along the harness lead-out portion of the protector, and the extra length is extended. The other part is connected to the other connecting part, and the protector is fixed to the protector mounting side in a state where the extra length part is compressed ,
The harness lead-out portion is formed inside a harness bend restriction wall of the protector, the harness bend restriction wall is formed in a substantially annular shape, and a harness lead-out portion is provided inside the annular shape of the harness bend restriction wall, and the harness bend restriction A harness routing structure for a power feeding device , wherein the other part of the wire harness is inserted into an opening in which a wall is notched, and the extra length portion is accommodated in the harness lead-out portion .   The harness wiring structure for a power feeding device according to claim 1, wherein the extra length portion is compressed by its own restoring force. Harness installation structure of the power supply apparatus according to claim 1 or 2, characterized in that the harness lead-out portion followed harness guiding portion is provided toward the protector mounting side from the protector.

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