JP6014492B2 - Terminal connection structure for vehicles - Google Patents

Description

  The present invention relates to a terminal connection structure for a conductive wire such as a fogging prevention heat wire or an antenna installed in a vehicle.

  Patent Document 1 discloses an example of a vehicle terminal connection structure. In this structure, a wiring provided on a vehicle body panel member of a vehicle back door and a conductive wire provided on a window glass are provided, and the wiring has a U-shaped clip (connection member). A flexible terminal protrudes. The terminal protrudes toward the window glass with the clip sandwiching the edge of the opening formed in the outer panel, and the window glass is pressed against the outer panel and bonded to the outer panel. In this state, the terminal bends and is pressed against the window glass by the repulsive force to press-contact the conductive wire, and the wiring and the conductive wire are electrically connected via the clip (connecting member).

JP 2010-247732 A (paragraph 0023 column, paragraph 0024 column, FIGS. 2 to 4)

  By the way, in the terminal connection structure for vehicles of patent document 1, although the terminal is pressed against the window glass side with a fixed force by the clip, since the thickness of the adhesive that bonds the window glass to the outer panel varies, There is a problem that the contact strength with the conductive wire varies. Further, even when vibration or impact is applied to the back door, there is a problem that the compression allowance of the clip changes, the contact strength between the terminal and the conductive wire changes, and the conductive wire wears.

  The present invention has been made in view of such points, and the object of the present invention is to always contact the terminal of the connecting member installed on the vehicle body panel member with the conductive wire installed on the window member with a constant strength. There is to make it.

  In order to achieve the above object, the present invention devises the structure of the connecting member.

Specifically, the present invention relates to a window member having a conductive wire, a vehicle body panel member that supports the window member so as to have a cavity portion between the window member, and the cavity portion of the vehicle body panel member. A vehicle terminal connection structure in which the conductive wire is brought into contact with the connection member, and the conductive wire and the connection member are electrically connected to each other. resolution means is that taken.

1st invention has the structure by which the attachment seat for attaching the said connection member was provided in the said cavity part corresponding | compatible part of the said vehicle body panel member . The connection member is made of a metal leaf spring that is elastically compressed between the mounting seat and the conductive wire, and the conductive wire is formed by a panel-side elastic portion attached to the mounting seat and a repulsive force of the connecting member. a window side elastic portion the terminal portion is provided is pressed against the, provided between the upper Symbol panel-side elastic portion and the window side elastic portion, said window member when said window side elastic portion is bent more than a predetermined amount contact with the regulated amount of deflection of the window-side elastic portion, which have a contact portion which the pressing force on the panel-side elastic portion which acts in the compression direction of the connecting member in contact with the said window member . In the first invention, the panel-side elastic portion is compressed and bent by a pressing force acting via the abutting portion between the mounting seat and the window member, and is generated in the window-side elastic portion. The contact portion and the terminal portion are biased toward the window member with a repulsive force equal to or greater than a repulsive force.

A second invention, in the vehicle terminal connection structure of the first invention, the mounting seat, open the installation surface of the panel-side elastic portion is mounted, the distance to the window member side to the installation surface collision It has a configuration which have a substantially L-shaped projections are set. The protrusion has a portion facing the installation surface with a space on the window member side. According to a second aspect of the present invention, there is provided the panel-side elastic portion between the installation surface and a portion of the protrusion that faces the installation surface in a state where no pressing force is applied via the contact portion . characterized in that it is sandwiched Ru configuration and in a state of being compressed between.

According to a third aspect of the present invention, in the vehicle terminal connection structure according to the second aspect of the present invention , a restricting portion for restricting the panel-side elastic portion from detaching from the installation surface is provided on the opposite side of the installation surface from the protruding portion. It is provided.

According to a fourth aspect of the present invention, in the vehicle terminal connection structure according to the third aspect of the present invention, portions of the panel-side elastic portion that are located on the opposite side of the protrusion are on both sides in the width direction of the panel-side elastic portion. Each has a notch-shaped stopper locking part. According to a fourth aspect of the present invention, a pair of the restricting portions are provided on the installation surface with a space between each other, and each of the restricting portions is fitted into the stopper locking portion, whereby the stopper of the panel-side elastic portion. The movement of the panel-side elastic portion in a direction parallel to the installation surface is restricted with a portion between the locking portions interposed therebetween.

According to a fifth invention, in the vehicle terminal connection structure according to any one of the first to fourth inventions, a width of the window-side elastic portion is narrower than a width of the panel-side elastic portion.

A sixth invention is the vehicle terminal connection structure according to any one of the first to fifth inventions, wherein the panel-side elastic portion and the window-side elastic portion are formed of curved portions that bulge in opposite directions. It is characterized by.

  According to the first invention, when the window member is assembled to the vehicle body panel member, the window member first comes into contact with the terminal portion. Next, since the panel-side elastic portion has a larger repulsive force than the window-side elastic portion, the window-side elastic portion starts to bend without the panel-side elastic portion being bent. When the window member is further pressed to the vehicle body panel member side and the window member contacts the contact portion, the amount of bending of the window-side elastic portion is restricted, and then the pressing force pressing the window member is applied to the panel via the contact portion. It acts on the side elastic part, and the panel side elastic part starts to bend. When the window member is further pressed, the panel-side elastic portion bends, finally the window member comes into contact with the vehicle body panel member, and both members are assembled. Even if the distance between the window member and the vehicle body panel member varies in this assembled state, the window-side elastic portion is controlled to the window member side by the panel-side elastic portion in a state where the deflection amount is regulated by the contact portion. Since it is pressed, the state which presses a terminal part to a conductive wire with an appropriate pressing force can be maintained. Even if the impact is applied to the vehicle and the distance between the window member and the vehicle body panel member changes, the window side elastic portion is pressed against the window member side so that the panel side elastic portion follows the change. It is possible to maintain a state of being pressed against the conductive wire with an appropriate pressing force. In this way, the terminal portion of the connection member can always be brought into contact with the conductive wire of the window member with a constant contact strength.

  According to the second invention, the connecting member can be attached to the attachment seat by pushing the panel-side elastic portion between the tip of the protrusion and the installation surface of the attachment seat. Therefore, the assembling property is good.

  According to the third invention, since the panel side elastic portion is sandwiched between the protrusion provided on the installation surface of the mounting seat and the restriction portion, the panel side elastic portion is restricted from being detached from the installation surface. be able to. Therefore, the contact state between the terminal portion and the conductive wire can be stably maintained.

1 is an overall perspective view of a vehicle back door to which a vehicle terminal connection structure according to an embodiment is applied. It is a disassembled perspective view of the back door for vehicles to which the terminal connection structure for vehicles concerning an embodiment is applied. It is the enlarged plan view which looked at the A section of FIG. 2 from back. FIG. 4 is a cross-sectional view taken along line B-B in FIG. 3. FIG. 5 is a view corresponding to FIG. 4 in the middle of bonding the rear glass to the inner panel member and the outer panel member. FIG. 5 is a view corresponding to FIG. 4 in a state where the rear glass is bonded to the inner panel member and the outer panel member. FIG. 4 is a cross-sectional equivalent view taken along the line CC of FIG. 3 in a state where the rear glass is bonded to the inner panel member and the outer panel member. FIG. 3 is an enlarged perspective view corresponding to a portion D of FIG. 2 before the connection member is attached to the attachment seat. It is the D section expansion perspective view of FIG. FIG. 10 is a view corresponding to FIG. 9 of a vehicle back door in which a vehicle terminal connection structure is applied to a modification of the embodiment.

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

  FIG. 1 shows a vehicle back door (hereinafter referred to as a back door) 1 in which the vehicle terminal connection structure according to the present embodiment is applied to a heating wire provided on a rear glass. The back door 1 opens and closes a back door opening (not shown) at the rear end of a vehicle body (not shown) of the hatchback vehicle in the vertical direction. Winkers (not shown) are provided at positions corresponding to the left and right lower halves of the back door opening of the vehicle body, and the lower half of the back door 1 is exposed to the rear of the vehicle body. The width of the part becomes narrower as it goes down.

  FIG. 2 is an exploded perspective view of the back door 1. The back door 1 includes a substantially rectangular resin-made inner panel member (vehicle body panel member) 3, an outer panel member 5 assembled to the inner panel member 3 from the outside of the vehicle, and a rear glass 7 as a window member. The window member may be made of resin.

The inner panel member 3 is made of PP-GF (Polypropylene Glass Fiber), PP-CF.
It consists of a thermoplastic resin containing a fiber reinforcement such as (Polypropylene Carbon Fiber). The inner panel member 3 is a single piece, and has a main body portion 8 in which the upper half portion has a trapezoidal shape, and the left and right widths become narrower as the lower half portion goes downward. An annular outer standing wall 9 protrudes from the entire periphery so as to rise toward the outer panel member 5, and an outer flange 11 for joining projects outward from the entire protruding end of the outer standing wall 9. Is provided. The upper half of the inner panel member 3 is formed with a window opening 13 extending in the left-right direction, and a pair of hinge mounting portions 15, 15 are provided above the window opening 13 with a space left and right. It has been. An annular inner standing wall 17 protrudes from the entire inner peripheral edge of the window opening 13 so as to rise toward the outer panel member 5, and a joint inner flange is formed at the entire protruding end of the inner standing wall 17. 19 is provided so as to project inside the window opening 13. A light mounting portion 21 to which a license plate (not shown) illumination light (not shown) is attached is provided at the center in the left-right direction between the lower edge of the inner standing wall 17 and the lower edge of the outer standing wall 9. A lock device (not shown) that is formed and attached to the lower end thereof, that is, the center in the left-right direction of the lower edge of the outer standing wall 9 is engaged with and released from a striker (not shown) fixed to the vehicle body. A mounting portion 23 is formed.

The outer panel member 5 is divided into a resin outer upper member 29 and a resin outer lower member 31. Both divided members are made of a thermoplastic resin such as PP (Polypropylene) containing talc.

  The outer upper member 29 has a substantially rectangular plate shape that is elongated to the left and right, and a step that is recessed forward of the vehicle body is formed on the entire bottom edge. The outer peripheral edge of the outer upper member 29 is bonded to the upper edge of the window opening 13 and the outer peripheral edge of the inner panel member 3 above the window opening 13 of the inner panel member 3.

  The outer lower member 31 has a substantially rectangular plate shape whose lateral width becomes narrower as it goes downward, and a step that is recessed forward of the vehicle body is formed on the entire upper edge. The outer peripheral edge of the outer lower member 31 is bonded to the lower edge of the window opening 13 and the outer peripheral edge of the inner panel member 3 below the window opening 13 of the inner panel member 3. A number plate attachment portion 31 a is formed at the center of the outer lower member 31.

  The rear glass 7 has a rectangular plate shape, a region corresponding to the window opening 13 is transparent, and an outer region thereof is concealed by a black ceramic 7a. The rear glass 7 is fitted between the step at the lower end of the outer upper member 29 and the step at the upper end of the outer lower member 31 in a state where the outer upper member 29 and the outer lower member 31 are bonded to the inner panel member 3. The inner panel member 3 is bonded to the outer flange 11 and the inner flange 19 via an adhesive 33. Thereby, the rear glass 7 is supported by the panel members 3 and 5. In this supported state, on the both sides in the vehicle width direction of the window opening 13, there is a space between the main body 8, the outer standing wall 9, the inner standing wall 17, and the rear glass 7 of the inner panel member 3. A cavity 35 is formed in the substrate (see FIGS. 3, 6, and 7).

  A connecting member 37 connected to a power source (not shown) by a harness 45 is installed on both sides in the vehicle opening direction 13 of the main body portion 8 in the vehicle width direction, that is, on the portions corresponding to the hollow portion 35 of the inner panel member 3. On the other hand, a plurality of heat wires 39 extending in the vehicle width direction are applied to the transparent region of the rear glass 7 at equal intervals in the vertical direction, and conductive wires 41 that are connected to these heat wires 39 and flow current to the heat wires 39 are transparent regions. It is installed in a concealed area on both sides in the vehicle width direction. Then, the conductive wire 41 is brought into contact with the connecting member 37 to be electrically connected to each other, and a current is supplied to the conductive wire 41. The heat wire 39 and the conductive wire 41 are made of a paste containing silver powder as a main component and a thermosetting resin as a binder.

  Next, a connection structure between the conductive wire 41 and the connection member 37 will be described with reference to FIGS. 3 is an enlarged plan view of the portion A in FIG. 2 as viewed from the rear, before the rear glass 7 is assembled to the inner panel member 3, FIG. 4 is a cross-sectional view taken along line BB in FIG. 3, and FIG. 4 is a view corresponding to FIG. 4 in the middle of being bonded to the inner panel member 3 and the outer panel member 5, and FIG. 6 is a view corresponding to FIG. 4 in a state where the rear glass 7 is bonded to the inner panel member 3 and the outer panel member 5. 7 is a cross-sectional view corresponding to the cross section taken along the line CC of FIG. 3 in a state in which the rear glass 7 is bonded and assembled to the inner panel member 3 and the outer panel member 5, and FIG. 2 is an enlarged perspective view of a portion D in FIG. 2, and FIG. 9 is an enlarged perspective view of the portion D in FIG. In FIG. 3, the conductive line 41 is indicated by a virtual line.

  A mounting seat 43 for mounting the connecting member 37 is provided on the rear glass 7 side at a position corresponding to the hollow portion 35 of the inner panel member 3. The mounting seat 43 protrudes from the gate-shaped mounting seat main body 43a and a surface (hereinafter referred to as an installation surface) 43b on the rear glass 7 side of the mounting seat main body 43a with a gap on the rear glass 7 side, And a substantially L-shaped protrusion 43c extending so as to face the installation surface 43b, and a pair of stoppers (regulators) 43d and 43d are provided on the installation surface 43b on the opposite side of the protruding portion 43c. It protrudes on the rear glass 7 side with an interval in the vehicle width direction.

  The connecting member 37 is formed by bending a rectangular plate-shaped metal leaf spring into an S-shape, and the curved portion on the main body 8 side is connected to a harness 45 connected to the power source and While the panel side elastic part 37a installed in the attachment seat main body 43a is comprised, the curved part extended to the said rear glass 7 side following this panel side elastic part 37a comprises the glass side elastic part 37b.

  As shown in FIG. 6, the panel-side elastic portion 37a temporarily extends to the projection 43c side along the installation surface 43b between the installation surface 43b of the mounting seat body 43a and the projection 43c. After folding back, the protrusion 43c extends to the opposite side of the protruding portion. At both ends of the panel-side elastic portion 37a in the connecting portion width direction with respect to the harness 45, rectangular notch stopper locking portions 37c and 37c that are locked to the stoppers 43d and 43d are formed. The panel-side elastic portion 37a is compressed between the installation surface 43b of the mounting seat 43 and the protrusion 43c in a state where the rear glass 7 is not bonded to the inner panel member 3 and the outer panel member 5. The stopper engaging portions 37c and 37c are engaged with the stoppers 43d and 43d. In this way, the connection member 37 is attached to the attachment seat 43 (see FIGS. 4, 8, and 9). Therefore, the panel-side elastic portion 37a is pushed between the installation surface 43b of the mounting seat 43 and the tip of the projection 43c, and the stopper locking portions 37c and 37c are locked to the stoppers 43d and 43d. The connection member 37 can be attached to the attachment seat 43 by a relatively simple operation. Therefore, the assembling property is good. Further, the stopper engaging portions 37c and 37c are engaged with the stoppers 43d and 43d of the mounting seat 43, and the stoppers 43d and 43d are disposed on the side opposite to the protruding portion of the protruding portion 43c. It regulates withdrawal. As a result, the panel-side elastic portion 37a is sandwiched from both sides by the protrusion 43c and the pair of stoppers 43d and 43d, so that the panel-side elastic portion 37a is prevented from being detached from the installation surface 43b. can do. Therefore, the connection member 37 is held by the mounting seat 43.

  The glass side elastic portion 37b is turned from the front end of the panel side elastic portion 37a around the protruding end of the protruding portion 43c to the protruding portion side of the protruding portion 43c, and has a smaller elastic repulsive force than the panel side elastic portion 37a. Thus, the width | variety is narrower than this panel side elastic part 37a. In addition, a terminal portion 49 that contacts the conductive wire 41 of the rear glass 7 protrudes from the surface on the rear glass 7 side at the tip of the glass side elastic portion 37b. Furthermore, between the glass side elastic part 37b and the panel side elastic part 37a of the leaf spring 47, there is an abutting part 51 that rises from both ends in the width direction to the rear glass 7 side and whose tip extends outward in the vehicle width direction. Is provided. The glass-side elastic portion 37b is compressed and bent by the rear glass 7 and the mounting seat 43, and the repulsive force acts on the terminal portion 49 at the tip, so that the terminal portion 49 is the conductive wire of the rear glass 7. 41 is in contact. The tip of the contact portion 51 is in contact with the rear glass 7 to regulate the amount of bending of the glass side elastic portion 37b. Furthermore, although the panel side elastic portion 37a is compressed and bent between the mounting seat 43 and the rear glass 7, the panel side elastic portion 37a has a repulsion greater than the repulsive force generated by the glass side elastic portion 37b. The contact portion 51 and the terminal portion 49 are urged toward the rear glass 7 by force.

  Next, the behavior of the connection member 37 when the rear glass 7 is bonded to the inner panel member 3 in a state where the connection member 37 is attached to the attachment seat 43 will be described with reference to FIGS. Since the glass side elastic portion 37b is in a free state, the terminal portion 49 protrudes toward the rear glass 7 (see FIG. 4). When the rear glass 7 is pressed against the inner panel member 3 from this state, first, the rear glass 7 comes into contact with the terminal portion 49. Next, since the panel side elastic part 37a has a larger repulsive force than the glass side elastic part 37b, the glass side elastic part 37b starts to bend without the panel side elastic part 37a being bent. When the rear glass 7 is further pressed against the inner panel member 3 side and the rear glass 7 comes into contact with the contact portions 51, 51, the bending amount of the glass side elastic portion 37 b is restricted, and subsequently, the pressing force pressing the rear glass 7 is applied. It acts on the panel side elastic part 37a via the contact parts 51 and 51, and the panel side elastic part 37a begins to bend. When the rear glass 7 is further pressed, the panel-side elastic portion 37 a is bent, finally the rear glass 7 abuts against the inner panel member 3, and the rear glass 7 is bonded to the inner panel member 3.

  Even when the distance between the rear glass 7 and the inner panel member 3 varies in the assembled state, the glass side elastic portion 37b is in a state in which the amount of bending is restricted by the contact portions 51, 51, and the panel side elasticity Since the portion 37a is pressed against the rear glass 7 side, the terminal portion 49 can be pressed against the conductive wire 41 with an appropriate pressing force. Even if the impact is applied to the vehicle and the distance between the rear glass 7 and the inner panel member 3 changes, the glass side elastic portion 37b is pressed against the rear glass 7 so that the panel side elastic portion 37a follows the change. The state in which the terminal portion 49 is pressed against the conductive wire 41 with an appropriate pressing force can be maintained. In this way, the terminal portion 49 can be always in contact with the conductive wire 41 with a constant contact strength.

  Moreover, since the connection member 37 is hold | maintained at the attachment seat 43 as mentioned above, the contact state of the terminal part 49 and the conductive wire 41 can be maintained stably.

<< Modification of Embodiment >>
In the embodiment described above, the mounting seat 43 includes the gate-shaped mounting seat main body 43a, but the structure of the mounting seat 43 is not limited to this. FIG. 10 is a view corresponding to FIG. 9 showing a mounting seat according to this modification. The mounting seat 44 according to this modification has a boss portion 44a for fixing the plate spring 47, and a pair of substantially rectangular ribs 44b and 44b project from the boss portion 44a to both sides in the vehicle width direction. A rectangular rib 44c projects from the boss portion 44a in a direction perpendicular to the ribs 44b and 44b. Although the ribs 44b and 44b are formed higher than the boss portion 44a, a rectangular cutout portion 44d is formed in the vicinity of the boss portion 44a. On the other hand, the rib 44c is formed at the same height as the boss portion 44a. The leaf spring 47 is placed on the portion corresponding to the notches 44d and 44d of the pair of ribs 44b and 44b and the rib 44c, and is fixed by screws S. Thus, the leaf spring 47 is restricted from rotating around the axis of the boss portion 44a by contacting the inner peripheral edge of the notches 44d and 44d. Thereby, the arrangement of the plate spring 47 is stabilized, and the terminal portion 49 provided at the tip of the plate spring 47 can be stably brought into contact with the conductive wire 41.

  In the above embodiment, the vehicle terminal connection structure according to the present invention has been described as applied to the heating wire provided on the rear glass 7 of the back door 1, but the application target is not limited to the heating wire, and may be an antenna. Any device that requires electrical connection can be applied. Further, the application location is not limited to the back door 1.

  As described above, the vehicle terminal connection structure according to the present invention can be applied to applications in which the terminal of the connection member is always in contact with the conductive wire with a constant strength.

3 Inner panel member (body panel member)
7 Rear glass (window member)
35 Cavity 37 Connection Member 41 Conductive Wire 43 Mounting Seat 43b Installation Surface 43c Projection 43d Stopper (Regulator)
47 Leaf spring 37a Panel side elastic part 37b Glass side elastic part (window side elastic part)
49 Terminal part 51 Contact part

Claims (6)

A window member (7) having a conductive wire (41), a vehicle body panel member (3) having a cavity (35) between the window member (7) and supporting the window member (7); A connecting member (37) provided at the location corresponding to the hollow portion of the vehicle body panel member (3), and the conductive wire (41) is brought into contact with the connecting member (37) so that both (37, 41) An electrically connected terminal connection structure for a vehicle,
A mounting seat (43) for mounting the connection member (37) is provided at the position corresponding to the hollow portion of the vehicle body panel member (3).
The connecting member (37)
It consists of a metal leaf spring that is elastically compressed between the mounting seat (43) and the conductive wire (41) ,
A panel-side elastic portion (37a) attached to the mounting seat (43) ;
A window side elastic portion (37b) provided with a terminal portion (49) pressed against the conductive wire (41) by the repulsive force of the connection member (37) ;
It provided between the upper Symbol panel-side elastic portion and (37a) above the window side elastic portion and (37b), those in the window member (7) when the window side elastic portion (37b) is bent more than a predetermined amount The amount of bending of the window- side elastic portion (37b) is regulated so that the pressing force acting in the compression direction of the connection member (37) is in contact with the window member (7), and the panel-side elastic portion (37a Abutting part (51) exerting on
The panel side elastic portion (37a) is compressed and bent by the pressing force acting through the contact portion (51) between the mounting seat (43) and the window member (7), and the window side elastic portion the contact portion with the repulsive force or repulsive force generated in the section (37b) (51) and the vehicle terminal connection, characterized in that urges to the terminal portion (49) said window member (7) Construction. The vehicle terminal connection structure according to claim 1,
The mounting seat (43) includes an installation surface (43b) on which the panel-side elastic portion (37a) is installed, and a substantially L-shaped projection (43c) projecting from the installation surface (43b). Have
The protrusion (43c) has a portion facing the installation surface (43b) with a gap on the window member (7) side,
The panel-side elastic portion (37a) in a state where the pressing force via the contact portion (51) does not act, the installation surface of the installation surface (43 b) and the projection (43c) (43 b the vehicle terminal connection structure according to claim <br/> that has sandwiched Ru configuration and in a compressed state between the opposing portions). In the vehicle terminal connection structure according to claim 2,
On the opposite side of the installation surface (43b) from the protruding portion (43c) projecting portion, a restricting portion (43d) is provided for restricting the panel-side elastic portion (37a) from detaching from the installation surface (43b). The terminal connection structure for vehicles characterized by the above-mentioned. In the vehicle terminal connection structure according to claim 3,
Of the panel-side elastic portion (37a), the portion located on the opposite side of the protrusion (43c) is provided on both sides in the width direction of the panel-side elastic portion (37a) with a notch-shaped stopper locking portion (37c). ) Each
The restricting portion (43d) is provided in a pair with a space from each other on the installation surface (43b), and is fitted into the stopper locking portion (37c), whereby the panel-side elastic portion (37a) Restricting the movement of the panel-side elastic portion (37a) in the direction parallel to the installation surface (43d) with the portion between the stopper locking portions (37c) interposed therebetween
The terminal connection structure for vehicles characterized by the above-mentioned. In the vehicle terminal connection structure according to any one of claims 1 to 4,
The window-side elastic part (37b) is narrower than the panel-side elastic part (37a).
The terminal connection structure for vehicles characterized by the above-mentioned. In the vehicle terminal connection structure according to any one of claims 1 to 5,
The panel-side elastic part (37a) and the window-side elastic part (37b) are composed of curved parts that bulge in opposite directions.
The terminal connection structure for vehicles characterized by the above-mentioned.

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