JP2008245392A - Electrical connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connection structure wherein the mechanical endurance of a wire harness can be inexpensively enhanced through a simple construction. <P>SOLUTION: The electrical connection structure is applied to the surplus length absorbing mechanism 40 of a power feeding device for a trunk lid. The absorbing mechanism includes a coating tube 31, a housing case 10, and a guide portion 50. A wire harness 30 coated with the coating tube 31 is installed from the guide opening 45 to the internal space 48 of the housing case 10 so that its intermediate portion is bent. The wire harness is so installed that it can freely get in and out through the opening 43 and the cylindrical portion 53 of the guide portion 50. The cylindrical portion 53 of the guide portion 50 is rotated and displaced in conjunction with the opening/closing or movement of the trunk lid 2. The outer circumferential surface of the coating tube 31 is brought into slidable contact with the inner circumferential surface of the cylindrical portion, which movably guides the wire harness 30 into the internal space 48. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrical connection structure that electrically connects a fixed side member and various electrical component parts mounted on a movable side member that can be opened, closed, and slidable with respect to the fixed side member.

  Conventionally, for example, an electric connection structure for electrically connecting a power supply device installed on the vehicle body side of an automobile and an electrical component installed on an opening / closing part such as a door or trunk of an automobile or a sliding part such as a sunroof or a slide seat. For example, a harness housing device disclosed in Patent Documents 1 to 3 below is known.

  Such a harness housing device is a protective member in which a fixed part mainly connected to a power supply device or the like installed on a fixed side member and a movable part connected to a slide part as a moving side member have elasticity. For example, it is configured as follows.

  That is, the conventional harness housing device disclosed in Patent Document 1 houses a wire harness inside a protector made up of a box body and a cover, and pulls out the wire harness from a harness outlet between the box body and the cover. It's free. This harness housing device has a pair of protrusions having grooves or protrusions on either the box body or the cover on both sides of the harness outlet, and enters the groove on either side of the box body or cover. It has a recessed part engaged with a rib or a convex part.

  At the same time, the harness housing device has a structure in which grooves are provided on both sides of the rib, and the protrusions and the ribs are positioned so as to intersect with each other by engaging the front end side of the protrusions in the grooves. And in this harness accommodating apparatus, the flat type wire harness (flat harness) is used, and it has the structure which urged | biased this flat harness in the drawing-in direction with the elastic member in a protector.

  In addition, the conventional harness housing device disclosed in Patent Document 2 includes a protector that houses the wire harness in a folded state, a harness guide member that is disposed in the folded portion of the wire harness and is movable in the longitudinal direction of the harness, An urging member that urges the harness guide member in a direction in which the harness is retracted into the protector.

  And this harness accommodating apparatus has a hook part standing on both sides of the harness guide surface of the harness guide member, and a claw part for holding the wire harness is provided on this hook part. It has a structure that is arranged eccentrically on the side of the top of the surface. In this harness housing device, a pair of claw portions are arranged on both sides in the radial direction of the harness guide surface, or a pair of claw portions are arranged on one side in the radial direction of the harness guide surface and a collar portion is cut out in an inclined manner on the other side. An inclined rib is provided.

  Furthermore, the conventional harness housing device disclosed in Patent Document 3 includes a protector that houses the wire harness and a harness fixing member that fixes the wire harness to the inside of the protector. In this harness housing device, the harness fixing member is fixed to the protector by the locking means, and the wire harness is routed between the harness fixing member and the protector along the guide plate of the harness fixing member.

  Further, the harness fixing member has a substantially triangular plate portion in front of the guide plate, the wire harness is folded back in the crossing direction along the plate portion, and the harness fixing member has a connector holding portion following the guide plate. In addition, the connector holding portion has a holding means for the connector of the wire harness. And a holding means and a protector have the structure which has a receiving part which supports a connector in a mating connector fitting direction, and a harness fixing member has the frame-shaped part which fixed the protection tube of the wire harness integrally.

JP 2005-176501 A JP 2005-176502 A JP 2005-176503 A

  However, in the harness housing device disclosed in Patent Documents 1 to 3 described above, an elastic member and a biasing member for pulling back the wire harness into the protector are configured by a spring. For this reason, there is a problem that it is difficult to reduce the weight and cost of the entire harness housing device because the spring and the components that work with the spring are required.

  Moreover, in the harness accommodating apparatus mentioned above, the flat harness manufactured by the special shape is used as a wire harness accommodated in a protector. For this reason, it is difficult to improve the workability in the manufacturing process because the connector for connecting to the terminal part is newly manufactured or the conventional wire harness processing equipment cannot be diverted. There is a problem of end.

  The present invention has been made in view of such problems, and an object thereof is to provide an electrical connection structure that can improve the mechanical durability of a wire harness at a low cost with a simple configuration.

  The electrical connection structure according to the present invention includes a fixed part installed on the fixed side member, a movable part installed on a movable side member that can be opened and closed and slidable with respect to the fixed side member, and one end fixed to the fixed part. An electrical connection including a wire harness that is fixed to the movable portion and has an intermediate portion bent and electrically connected between the stationary member and the movable member. A surplus length absorption mechanism that absorbs at least the surplus length of the intermediate portion of the wire harness is installed on either the fixed portion side or the movable portion side. The intermediate portion of the wire harness coated with the coated tube is coated with the intermediate portion of the wire harness, and is movable in conjunction with opening and closing of the moving side member and the slide movement, and the intermediate portion of the wire harness coated with the coated tube A storage case configured to be stowable and having an opening in which the stored intermediate portion can be extended, and provided in the vicinity of the opening on the outside of the storage case, and accompanying opening / closing and sliding movement of the moving side member Guide means for guiding the wire harness toward the internal space while the outer peripheral surface of the coated tube is in sliding contact with at least the intermediate portion of the wire harness being moved into the internal space. The intermediate portion is introduced into the internal space from the side where the extra length absorbing mechanism is installed, and is accommodated in the internal space in a bent state and led out from the opening. It is characterized by.

  The electrical connection structure according to the present invention is configured as described above, so that the mechanical durability of the wire harness can be improved with a simple configuration, while the conventional spring and the components interlocking with the spring are unnecessary. It becomes possible to improve at low cost.

  The guide means of the surplus length absorbing mechanism is a cylindrical member whose base end side is pivotally supported in the vicinity of the opening on the outside of the storage case, for example, and is rotated and displaced in accordance with opening / closing and sliding movement of the moving side member Have

  Further, the guide means of the extra length absorbing mechanism is, for example, a piece formed so as to project outward from the vicinity of the opening on the outside of the storage case along the moving direction of the coated tube in the internal space. It consists of a member.

  The storage case of the surplus length absorption mechanism has the opening at an end surface that intersects the moving direction of the coated tube, for example, and the end surface parallel to the moving direction on the intersecting end surface side or any of the intersecting end surfaces The wire harness lead-out opening is further formed in the vicinity of the opening and communicating with the internal space.

  In addition, the storage case of the extra length absorption mechanism includes, for example, a housing body portion having a shape in which the internal space is formed on the same surface, and a housing cover portion that is detachably attached to the housing body portion. It is configured with.

  The coated tube of the extra length absorbing mechanism is, for example, a corrugated tube.

  The fixed side member is, for example, a vehicle body, and the moving side member is, for example, a trunk lid or a slide seat.

  According to the present invention, the surplus length in the intermediate portion of the wire harness is installed on either the fixed portion side or the movable portion side, and moves in conjunction with opening and closing of the moving side member and sliding movement by covering the wire harness. A cover tube capable of storing the intermediate portion of the wire harness coated with the cover tube in the internal space, and guide means for guiding the wire harness toward the internal space when the movable member moves. It is stored while being absorbed by the extra length absorption mechanism provided. For this reason, the spring and the components linked to the spring are not required, and the mechanical durability of the wire harness can be improved at a low cost with a simple configuration.

  Hereinafter, preferred embodiments of an electrical connection structure according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an explanatory view showing a trunk lid power supply device to which an electrical connection structure according to an embodiment of the present invention is applied in an automobile, FIG. 2 is a transparent perspective view showing a surplus length absorbing mechanism of the power supply device, and FIG. FIG. 4 is a transmission plan view showing a surplus length absorption mechanism of the power supply apparatus, and FIG. 4 is a transmission side view showing the surplus length absorption mechanism of the power supply apparatus.

  FIG. 5 is a cross-sectional view for explaining the operation of the surplus length absorbing mechanism of the power feeding device, and FIG. 6 is for explaining the difference between the surplus length absorbing mechanism of the power feeding device and a normal surplus length absorbing mechanism. FIG. In the following description, the vertical direction of the automobile will be referred to as the X direction, the left-right direction toward the front direction as the LR direction, the left direction as the L direction, and the right direction as the R direction.

  As shown in FIG. 1, a trunk lid power supply device to which the electrical connection structure according to the present embodiment is applied is a vehicle body side fixing portion (not shown, the same applies hereinafter) that is a fixing portion installed in a vehicle body 1 of an automobile. Is provided. Further, the vehicle body 1 includes a lid-side fixing portion 20 that is a movable portion that can be opened and closed in the X direction that is the vertical direction of the automobile, for example. The lid-side fixing portion 20 is installed, for example, in a space behind the lid of the trunk lid 2.

  Further, the trunk lid supply device includes a wire harness 30 that has one end connected to the vehicle body-side fixing portion and the other end connected to the lid-side fixing portion 20 and a middle portion thereof being bent. The wire harness 30 has a structure in which a plurality of electric wires 49 (see FIG. 5; the same applies hereinafter) are bundled with a coating tube 31 described later, and the vehicle body side fixing portion and the lid side fixing portion 20 are electrically connected. Connect to.

  In addition, the trunk lid power supply device includes, for example, a surplus length absorbing mechanism 40 that is provided on the vehicle body side fixed portion side and absorbs and accommodates a bent portion (that is, a surplus length portion) of an intermediate portion of the wire harness 30. Configured. The surplus length absorbing mechanism 40 includes at least a middle portion of the wire harness 30 described above, and includes a coated tube 31 that is movable in conjunction with the opening / closing movement of the trunk lid 2 as a part of the configuration.

  The surplus length absorbing mechanism 40 includes a storage case 10 that can store an intermediate portion of the wire harness 30 coated on the coated tube 31 in an internal space 48 (see FIG. 5, the same applies hereinafter). Further, the surplus length absorbing mechanism 40 includes a guide portion 50 that is provided on the rear end side of the vehicle body 1 outside the storage case 10 and guides the wire harness 30 to the internal space 48 of the storage case 10.

  The storage case 10 of the surplus length absorbing mechanism 40 has an opening 43 for extension through which an intermediate part of the stored wire harness 30 can extend. In the storage case 10 of this example, the opening 43 is made to move in the internal space 48 along the longitudinal direction of the vehicle body 1 of the wire harness 30 (the direction indicated by the arrow Y in FIG. 3, hereinafter referred to as “Y direction”). On the end face 43a that intersects the The opening 43 communicates the internal space 48 of the storage case 10 with the outside.

  The storage case 10 is made of a resin-molded member, stores the intermediate portion of the wire harness 30 in the internal space 48, and extends, for example, along a direction parallel to the front-rear direction of the vehicle body 1 of the automobile. It has. In the housing 44, for example, the above-described opening 43 is formed on the R direction side of the rear end surface 43a that intersects the front-rear direction of the vehicle body 1. The housing 44 is formed with an opening 45 for introduction of the wire harness 30 on the L direction side, which is parallel to the longitudinal direction of the vehicle body 1 and on the rear side of the upper end face 44a in the X direction.

  Each of the opening 43 and the introduction opening 45 communicates with the internal space 48 of the storage case 10. Although not shown, the housing 44 is attached to the housing main body having a shape in which the internal space 48 is opened on the same surface (opened on the same surface), and is detachably attached to the housing main body. It may be configured to be separable into a case cover portion to be provided. In this case, the casing body and the casing cover are fixed to each other by an adhesive or the like when installed on the vehicle body 1.

  Although not shown in the drawings, the opening 43 of the storage case 10 is formed by, for example, the wire harness 30 connecting the lid-side fixing portion 20 and the extra length absorbing mechanism 40 being moved together with the coated tube 31 as the trunk lid 2 is opened and closed. You may form with the predetermined | prescribed inclination which spreads in the extending direction so that it can enter / exit without stress.

  Here, as shown in FIG. 3, the intermediate portion of the wire harness 30 is introduced from the introduction opening 45 into the inner space 48 of the storage case 10 configured as described above, and is bent into, for example, a U shape. It is accommodated so as to be led out from the opening 43 through a guide part 50 described later.

  In this trunk lid power supply device, the vehicle body side fixing portion and the extra length absorbing mechanism 40 are installed in the vehicle body 1, and the lid side fixing portion 20 is in a state where the trunk lid 2 is completely closed with respect to the vehicle body 1. It is installed on the back side of the trunk lid 2 at a position closest to the surplus length absorbing mechanism 40.

  For this reason, the wire harness 30 is not loosely accommodated in the space in the trunk 3, and for example, an on-vehicle device (not shown) such as an audio device or an in-vehicle AV device can be sufficiently installed. Become. Further, the surplus length absorbing mechanism 40 may be installed on the back side of the trunk lid 2 together with the lid side fixing portion 20.

  As shown in FIGS. 2 to 4, the coating tube 31 of the surplus length absorbing mechanism 40 is made of, for example, a linear corrugated tube having a smooth outer peripheral surface. As described above, when the coated tube 31 is made of a corrugated tube having a smooth outer peripheral surface, it becomes easy to slip in the internal space 48 of the storage case 10 and easily enters and exits from the opening 43. The coated tube 31 is preferably provided with an elastic restoring force that attempts to return to a straight line when no load is applied.

  Further, the guide portion 50 of the surplus length absorbing mechanism 40 is made of a resin-molded member similarly to the storage case 10 and enters at least the inner space 48 of the storage case 10 at the intermediate portion of the wire harness 30 accompanying the opening / closing movement of the trunk lid 2. During the movement, the outer peripheral surface of the coated tube 31 of the wire harness 30 comes into sliding contact.

  The guide portion 50 of this example is a cylindrical portion that is pivotally supported via a support shaft 52 on a plurality of pieces 51 protruding in the Y direction in FIG. 3 from the vicinity of the opening 43 of the end surface 43a of the storage case 10. 53. The cylindrical portion 53 of the guide portion 50 is rotationally displaced in the direction of the arrow X ′ in the drawing as shown in FIGS. 5A and 5B in accordance with the opening / closing movement of the trunk lid 2.

  In particular, as shown in FIG. 6 (a), the tubular portion 53 is connected to the wire harness when the trunk lid 2 is closed (when the trunk lid 2 changes from the state shown in FIG. 6 (b) to the state shown in FIG. 6 (a)). The outer peripheral surface of the 30 coated tubes 31 rotates in the X ′ direction while being in sliding contact with the inner peripheral surface of the cylindrical portion 53. For this reason, as shown in FIG.6 (b), the structure which the wire harness 30 can be moved in the internal space 48, without buckling in the vicinity of the opening part 43 of the outer side of the storage case 10 is implement | achieved.

  5B, when the trunk lid 2 is opened and the lid side fixing portion 20 is pulled and moved away in the X direction, the wire harness 30 is indicated by a two-dot chain line in FIG. In addition, the coated tube 31 contracts in a circular shape within the internal space 48 of the storage case 10 to generate a repulsive force. At this time, since it is possible not to apply an excessive force in the pulling direction to the electric wire 49 of the wire harness 30, it is possible to effectively prevent the electric wire 49 from being disconnected.

  Further, for example, as shown in FIG. 5B, when the trunk lid 2 is closed and the lid-side fixing portion 20 moves so as to approach the X direction, the elastic restoring force of the coated tube 31 as shown by the broken line in FIG. As a result, a force acting so that the wire harness 30 spreads in the internal space 48 of the storage case 10 acts.

  At the same time, the guide portion 50 can prevent buckling of the wire harness 30 and can absorb the extra length at the intermediate portion of the wire harness 30. Therefore, the wire harness 30 can be bent in the internal space 48 of the storage case 10 by the elastic restoring force of the coated tube 31.

  In the surplus length absorbing mechanism 40 configured in this way, the wire harness 30 is guided into the internal space 48 of the storage case 10 through the introduction opening 45 from the vehicle body side fixing portion where the surplus length absorbing mechanism 40 is installed. It is burned. The intermediate portion of the wire harness 30 is arranged in a U shape in the internal space 48 together with the coating tube 31, and the opening 43 is formed on the side where the surplus length absorbing mechanism 40 is not installed (that is, on the trunk lid 2 side). Further, it is arranged to freely enter and exit through the cylindrical portion 53 of the guide portion 50.

  Therefore, when the vehicle body side fixing portion and the lid side fixing portion 20 are closest to each other (as shown in FIG. 5A), the wire harness 30 is as follows in the internal space 48 of the storage case 10. Arranged. That is, for example, an intermediate portion of the wire harness 30 introduced into the inside from the introduction opening 45 is arranged in a U shape along the inner peripheral side wall in the inner space 48 by the coating tube 31, and the inner peripheral side wall While being urged so as to be pressed, it is arranged so as to come out through the opening 43 and the cylindrical part 53 of the guide part 50.

  When the vehicle body side fixing portion and the lid side fixing portion 20 are farthest (in the case shown in FIG. 5B), the wire harness 30 is as follows in the internal space 48 of the storage case 10. Arranged. In other words, the intermediate portion of the wire harness 30 is arranged so as to come out through the opening 43 and the cylindrical portion 53 of the guide portion 50 in a state of being deformed in an arc shape together with the coating tube 31. In this case, a stress (tensile force) is applied to the intermediate portion of the wire harness 30 so as to be pulled back into the internal space 48 due to the elastic restoring force of the coated tube 31.

  As described above, according to the surplus length absorbing mechanism 40, a necessary amount is appropriately selected from the opening 43 of the storage case 10 and the cylindrical portion 53 of the guide portion 50 according to the opening / closing movement amount of the trunk lid 2 in the X direction. The wire harness 30 can be freely extended. Further, according to the surplus length absorbing mechanism 40, a spring for pulling the wire harness 30 back into the internal space 48 of the storage case 10 and components associated with the spring are not required. Cost can be reduced. Moreover, according to this surplus length absorption mechanism 40, since it can implement | achieve by simple structure of the wire harness 30, the storage case 10, and the guide part 50 which were coat | covered on the coating tube 31, it implement | achieves a compact structure, implement | achieving a machine Durability can be improved.

  Furthermore, according to the extra length absorbing mechanism 40, since the box-shaped storage case 10 is provided so that a space can be secured in the trunk 3 on the back side of the trunk lid 2, the trunk 3 on the back side of the trunk lid 2 is provided. An empty space can be secured in the inner space. Thereby, it becomes possible to aim at the effective use regarding installation in trunks 3, such as a car equipment.

  Although not shown, the vehicle body side fixing portion is connected to the electric wire 49 of the wire harness 30 exposed from the storage case 10 via the surplus length absorbing mechanism 40 and the introduction opening 45, and It is connected to in-vehicle devices such as a provided power supply circuit and control circuit. Further, the lid-side fixing portion 20 is connected to the electric wire 49 of the wire harness 30 exposed from the storage case 10 through the opening 43 and the guide portion 50, and is further provided with lamps (see FIG. And other electrical components such as a connector (not shown).

  Further, the length of the wire harness 30 is, for example, in a state where one end is connected to the vehicle body side fixed portion, the intermediate portion thereof is accommodated in the surplus length absorbing mechanism 40, and the trunk lid 2 has a fully open position and a fully closed position. The length is set in advance to reach the lid-side fixing portion 20 at each position sufficiently. Similarly, the length of the coated tube 31 is set to a length that can sufficiently reach the lid-side fixing portion 20 in conjunction with the movement of the trunk lid 2 from at least the introduction opening 45 of the storage case 10.

  Further, as shown in FIG. 1, the trunk lid 2 is installed in a state in which it can be opened and closed in the X direction by the trunk arm 4 and the trunk arm 5 provided on the vehicle body 1 on the R direction side and the L direction side, respectively. Has been. On the trunk lid 2, as described above, electrical components (not shown) such as lamps are mounted at arbitrary positions on the trunk lid 2.

  The electrical connection structure in the above-described embodiment can also be applied to electrical connection to a moving member such as a slide seat (not shown) mounted on the vehicle body 1, for example. Also in this case, the surplus length absorbing mechanism 40 may be installed on the slide seat side or the vehicle body 1 side.

  FIG. 7 is a cross-sectional view showing another extra length absorbing mechanism for a trunk lid power supply device to which an electrical connection structure according to an embodiment of the present invention is applied in an automobile. In the following, portions that overlap with the portions already described are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 7, the surplus length absorbing mechanism 40 is different from the surplus length absorbing mechanism 40 in that a guide portion 50 'is provided.

  The guide portion 50 ′ extends integrally along the moving direction (Y direction in FIG. 3) of the wire harness 30 from the end face 43 a (not shown) in the vicinity of the opening 43 on the outside of the storage case 10. It consists of the piece-like part 54 formed so that it may protrude outside. Even in such a guide portion 50 ′, the wire harness 30 does not buckle when the trunk lid 2 is closed because the outer peripheral surface of the coated tube 31 is in sliding contact with the surface of the piece-like portion 54.

  As described above, according to the electrical connection structure of the present invention, the surplus length absorbing mechanism 40 and the wire harness 30 can be arranged at an arbitrary position of the vehicle body 1 or the trunk lid 2, and the layout of the interior space can be freely set. Can be performed. In addition, since the surplus length absorbing mechanism 40 can be realized with a simple and lightweight configuration, it is possible to reduce the cost by reducing the size and weight of the entire mechanism by reducing the number of components associated with the spring and the spring, Furthermore, it is possible to realize an electrical connection structure that is highly durable and can move the wire harness 30 smoothly.

  Note that the trunk lid power supply device to which the electrical connection structure of the above-described embodiment is applied electrically connects the vehicle body 1 and the trunk lid 2 of the automobile via the vehicle body side fixing portion and the lid side fixing portion 20 respectively. In the case where the vehicle body side fixing portion and the lid side fixing portion 20 are electrically connected in a moving body such as a train or an aircraft, or in a facility having various attractions, etc. Can also be applied. Further, in addition to a vehicle body and a slide seat, the present invention can also be applied when electrically connecting a slide door, a sunroof, a luggage door, and the like.

It is explanatory drawing which shows the electric power feeder for trunk lids which applied the electrical connection structure which concerns on one Embodiment of this invention. It is a permeation | transmission perspective view which shows the surplus length absorption mechanism of the same electric power feeder. It is a permeation | transmission top view which shows the surplus length absorption mechanism of the same electric power feeder. It is a permeation | transmission side view which shows the surplus length absorption mechanism of the electric power feeder. It is sectional drawing for demonstrating operation | movement of the surplus length absorption mechanism of the electric power feeder. It is sectional drawing for demonstrating the difference between the surplus length absorption mechanism of the electric power feeder, and a normal surplus length absorption mechanism. It is sectional drawing which shows the other surplus length absorption mechanism of the electric power feeder.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle body, 2 ... Trunk lid, 3 ... Trunk, 4, 5 ... Trunk arm, 20 ... Lid side fixing part, 30 ... Wire harness, 31 ... Coated tube, 40 ... Surplus length absorption mechanism, 43 ... Opening part, 44 ... Case, 45 ... Opening opening, 48 ... Internal space, 49 ... Electric wire, 50 ... Guide part, 53 ... Cylindrical part.

Claims (7)

A fixed part installed on the fixed side member, a movable part installed on a movable side member that can be opened / closed and slidable with respect to the fixed side member, one end fixed to the fixed part, and the other end fixed to the movable part And an electrical connection structure including a wire harness that is arranged in a state where these intermediate portions are bent and electrically connects between the fixed side member and the moving side member,
A surplus length absorbing mechanism that absorbs a surplus length of the intermediate portion of the wire harness is installed on either the fixed portion side or the movable portion side,
The extra length absorption mechanism is
A coating tube that coats at least the intermediate portion of the wire harness and is movable in conjunction with opening and closing and sliding movement of the moving member;
A storage case configured to be capable of storing the intermediate portion of the wire harness coated with the coated tube in an internal space, and having an opening in which the stored intermediate portion can extend; and
The outer peripheral surface of the coated tube is provided in the vicinity of the opening on the outside of the storage case, and when the intermediate part of the wire harness is moved into at least the inner space in association with opening / closing or sliding movement of the moving member. Guide means for guiding the wire harness toward the internal space while being in sliding contact,
The intermediate portion of the wire harness is introduced into the internal space from the side where the extra length absorbing mechanism is installed, and is accommodated in the internal space in a bent state and led out from the opening. An electrical connection structure characterized by being housed in a housing.   The guide means of the surplus length absorbing mechanism is a cylindrical member whose base end side is pivotally supported in the vicinity of the opening on the outside of the storage case, and is rotated and displaced in accordance with opening and closing of the moving side member and sliding movement. The electrical connection structure according to claim 1, further comprising:   The guide means of the extra length absorbing mechanism is a piece-like member that is formed so as to project outward from the vicinity of the opening on the outside of the storage case along the moving direction of the coated tube in the internal space. The electrical connection structure according to claim 1, wherein:   The storage case of the surplus length absorption mechanism has the opening at an end surface that intersects the moving direction of the coated tube, and is either one of an end surface parallel to the moving direction on the intersecting end surface side and the intersecting end surface The electrical connection structure according to any one of claims 1 to 3, further comprising a lead opening for the wire harness formed in the vicinity of the opening and communicating with the internal space in the vicinity of the opening.   The storage case of the surplus length absorption mechanism includes a housing main body having a shape in which the internal space is formed on the same surface, and a housing cover that is detachably attached to the housing main body. It is comprised, The electrical connection structure of any one of Claims 1-4 characterized by the above-mentioned.   The electrical connection structure according to claim 1, wherein the coating tube of the extra length absorption mechanism is a corrugated tube.   The electrical connection structure according to claim 1, wherein the fixed side member is an automobile body, and the moving side member is a trunk lid or a slide seat.

Images