JP2015090819A - Securing structure and securing method of connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the working efficiency when securing a shield shell housing a connector to a floor panel, and to attain high shielding of the shield shell reliably.SOLUTION: A shield shell 21 housing a connector 17 is secured to the lower surface side of a conductive wall 11, and a terminal 19 projecting from the connector is connected with a connection partner located on the upper surface side of the wall through an opening 25 in the wall. The shield shell has a flange 29, and a first protrusion 31 protruding from the flange, the wall has a second protrusion 33 drooping from the peripheral edge of the opening, the second protrusion 33 bears the shield shell, and forms a slide surface 37 on which the first protrusion 31 slides. The terminal 19 and the mating terminal are connected until the first protrusion arrives at a set position along the second protrusion, or when arriving at the set position.

Description

  The present invention relates to a connector fixing structure and a fixing method, and more particularly to a technique suitable for attaching a shield shell containing a connector to a lower surface of a floor panel of an automobile.

  A motor mounted on an automobile such as an electric car or a hybrid car is supplied with electric power from a battery via an inverter. This battery is mounted behind the vehicle body (for example, behind the rear seat) and is connected to the inverter via a wire harness. The wire harness is a bundle of a plurality of high-voltage electric wires, and is routed along the floor lower surface facing the ground of the floor panel. In this wire harness, a connector is connected to one terminal, and an inverter is connected to the other terminal. The connector is fixed to the lower surface of the floor panel while being accommodated in a conductive shield shell, and the connector terminal protruding from the shield shell is installed above the floor panel through the floor panel opening. Connected to the terminal block. This type of connector fixing structure is disclosed in Patent Document 1, for example.

JP2011-165355A

  By the way, the shield shell is fixed to the floor panel at the vehicle factory. At this time, the worker works in a fashion looking up at the lower surface of the floor from below the floor panel. That is, the operator fastens the shield shell to the floor panel with bolts while pressing the shield shell containing the connector against the floor lower surface. For this reason, there exists a problem that the burden of the fixing operation | work of a shield shell becomes large.

  On the other hand, the floor panel is formed of a conductive material, and a predetermined shielding property is secured by pressing and fixing the flange portion of the shield shell to the lower surface of the floor. However, the lower surface of the floor panel is painted. That is, since the flange portion of the shield shell is fixed to the floor lower surface of the floor panel through the painted surface, there is room for improvement in order to stably secure high shielding properties.

  This invention is made | formed in view of such a problem, and makes it the 1st subject to aim at the improvement of the working efficiency at the time of fixing the shield shell which accommodated the connector to a floor panel. Moreover, this invention makes it a 2nd subject to obtain high shield property reliably.

  In order to solve the above-mentioned problems, the present invention fixes a shield shell containing a connector to the lower surface side of a conductive wall portion, and connects a terminal protruding from the connector to the upper surface side of the wall portion through the opening of the wall portion. The shield structure includes a flange portion extending in a direction intersecting the axial direction of the terminal, and a first protrusion protruding from the flange portion. And the wall has a second protrusion that hangs down from the periphery of the opening. The second protrusion supports the shield shell and the first protrusion slides. A sliding surface is formed, and the terminal and the mating terminal are connected to each other until the first protrusion reaches the setting position or reaches the setting position along the second protrusion. That And butterflies.

  According to this, the shield shell is supported by the wall portion via the second protrusion portion when the first protrusion portion contacts the slide surface. For this reason, when fixing the shield shell to the wall portion, it is not necessary to work while lifting the shield shell from below, so that the work efficiency can be improved. Moreover, the shield shell can peel the coating of a slide surface by sliding a 1st projection part along a slide surface. Thereby, since a shield shell (1st projection part) can be made to contact and be fixed to a wall part (slide surface), without interposing a coating surface, high shield nature can be secured.

  In this case, the first projecting portion protrudes from the flange portion on the opposite side to the projecting direction of the terminal, and is formed as a pair of protrusions extending substantially parallel to each other.

  According to this, the coating of the slide surface can be easily peeled by simply sliding the first protrusion along the slide surface in a straight line.

  The first protrusions are each formed to have a V-shaped cross section.

  According to this, since the friction between the first protrusion and the slide surface can be increased, the paint on the slide surface can be more easily peeled off.

  The first protrusions protrude in the protruding direction of the terminal, and are provided apart from each other in the circumferential direction around the axis of the terminal, each extending in a direction away from the axis of the terminal. The second projecting portions are formed in a cylindrical shape spaced apart from each other in the circumferential direction, and each has a second extending portion that extends toward the central axis. The gap between the adjacent second extending portions is formed so that the first extending portion can be inserted therein, and the slide surface is formed in the second extending portion, respectively. When the terminal is connected to the connection partner and the first extension is rotated around the axis of the terminal, the first extension is formed to be slidable.

  That is, the first extension part is inserted through the gap between the adjacent second extension parts, the terminal is connected to the connection partner, and the first extension part is connected to the slide surface of the second extension part. With the contact, the first extension is rotated around the axis of the terminal. Thereby, since the 1st extension part slides in the rotation direction along a slide surface, it can peel paint of a slide surface. Even in this way, high shielding properties can be secured.

  In this case, the shield shell is formed by stacking a plurality of cylindrical bodies coaxially with each other, and each of these cylindrical bodies is formed so as to be independently rotatable about an axis.

  According to this, even if the wire harness is connected to the connector, the shield shell can rotate the first extending portion regardless of the wiring direction of the wire harness. The fixing work can be performed efficiently.

  In order to solve the above problems, the present invention fixes a shield shell containing a connector to the lower surface side of a conductive wall portion, and a terminal protruding from the connector through the opening of the wall portion. A method of fixing a connector connected to a connection partner located on an upper surface side, wherein the shield shell includes a flange portion extending in a direction intersecting an axial direction of the terminal, and a first protrusion protruding from the flange portion And the wall has a second protrusion that hangs down from the periphery of the opening, and the second protrusion supports the shield shell and the first protrusion. A sliding surface is formed, the first projection is slid along the sliding surface to a set position, and the shield shell is connected to the terminal and the connection partner. Characterized by fixing the Kikabe unit.

  ADVANTAGE OF THE INVENTION According to this invention, the improvement of the work efficiency at the time of fixing the shield shell which accommodated the connector to a floor panel can be aimed at. Further, according to the present invention, high shielding properties can be obtained with certainty.

It is a front view which shows one Embodiment of the fixing structure of the connector of this invention. FIG. 2 is a diagram illustrating an operation procedure for fixing a shield shell to a floor panel in the fixing structure of FIG. 1. It is a figure explaining the operation | work procedure which fixes a shield shell to a floor panel in the fixing structure of the other connector to which this invention is applied. FIG. 4 is a top view when the first protrusion and the second protrusion are viewed from the floor panel in the fixing structure of FIG. 3. 1 is a schematic diagram of an automobile to which a connector fixing structure of the present invention is applied.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a connector fixing structure and a fixing method to which the present invention is applied will be described with reference to the drawings. As shown in FIG. 5, in an automobile 1 such as an electric car or a hybrid car, electric power output from a battery 3 is supplied to a motor 7 via an inverter 5. The inverter 5 and the motor 7 are electrically connected to each other and mounted in the engine room in front of the vehicle body. The battery 3 is disposed behind the vehicle body (for example, behind the rear seat 9) and is provided above the conductive metal floor panel 11 (wall portion). The battery 3 and the inverter 5 are electrically connected via the wire harness 13.

  The wire harness 13 is routed along the floor lower surface 15 facing the ground of the floor panel 11, one terminal is connected to the inverter 5, and the other terminal is connected to the connector 17. The connector 17 is formed, for example, by covering a part of the conductive terminal 19 with a resin housing. One end of the terminal 19 is connected to the other terminal of the wire harness 13, and the other end of the terminal 19 is The battery is connected to a terminal block (not shown) on the battery side where the connection partner is held.

  The connector 17 is accommodated in a conductive metal shield shell 21 and fixed to the floor lower surface 15. FIG. 1 is a front view of the shield shell 21 that houses the connector 17 as viewed from the front side of the vehicle body, and shows a part of the floor panel 11 in cross section.

  The shield shell 21 is formed with an opening 23 for accommodating the connector 17 at the upper end portion of the main body portion 22 formed in a cylindrical shape, and the cross-section is reduced in diameter toward the sealed lower end portion. . The connector 17 accommodated in the shield shell 21 is positioned inside the shield shell 21. The terminal 19 held by the connector 17 projects from the opening 23 substantially coaxially with the axis of the shield shell 21 (main body portion 22). The terminal 19 protruding from the shield shell 21 is connected to a connection partner of a terminal block provided on the opposite side (indoor side) to the floor lower surface 15 through an opening 25 penetrating the floor panel 11. . The other end of the wire harness 13 is connected to the terminal 19 of the connector 17 through the through hole 27.

  Next, a characteristic structure for fixing the shield shell 21 accommodating the connector 17 to the floor lower surface 15 of the floor panel 11 will be described. The shield shell 21 has a flange portion 29 that protrudes along the upper end surface (periphery of the opening 23). The flange portion 29 extends along a surface intersecting with the axis of the main body portion 22, that is, the axis of the terminal 19 (substantially orthogonal in FIG. 1), and is formed in a rectangular shape in plan view.

  Further, the flange portion 29 has a pair of protruding portions 31 (first protruding portions) protruding toward the side opposite to the protruding direction of the terminal 19, that is, toward the ground side. These protrusions 31 are arranged substantially parallel to each other so as to sandwich the axis of the terminal 19, and are formed with protrusions. Each protrusion 31 is continuous with the flange 29 and has conductivity, and a cross section in a direction perpendicular to the longitudinal direction is formed in a V shape. In the flange portion 29 shown in FIG. 1, the protruding portion 31 protrudes along the end surface of the flange portion 29, but the protruding portion 31 may be provided closer to the axis from the end surface of the flange portion 29. Moreover, the cross-sectional shape of the protrusion part 31 of FIG. 1 is not restricted to V shape.

  On the other hand, the floor panel 11 has a pair of protrusions 33 (second protrusions) that hang down from the periphery of the opening 25. The protrusions 33 are formed in a plate shape substantially parallel to each other along the substantially rectangular opening 25, and between these protrusions 33, the width dimension of the flange portion 29 of the shield shell 21 (see FIG. 1). A gap larger than the maximum dimension in the left-right direction is set. Each protrusion 33 is connected to the floor panel 11 and has conductivity. Each projection 33 has an extension 35 extending at a substantially right angle toward the other projection 33 at the lower end thereof. That is, each protrusion 33 is formed in an L shape or a bowl shape as a whole.

  On the upper surface of each extending portion 35, a slide surface 37 on which the protruding portion 31 of the shield shell 21 slides is formed. The slide surface 37 is provided in a straight line over the front-rear direction of the floor panel 11 (the left-right direction in FIG. 5). In addition, the shield shell 21 is supported on the floor panel 11 via the projection 33 by the projection 33 contacting the slide surface 37.

  Next, a procedure for fixing the shield shell 21 to the bottom surface of the floor panel 11 will be described with reference to FIG. First, as shown in FIG. 2A, a shield shell 21 in which the connector 17 is accommodated is prepared. In the shield shell 21, the terminal 19 of the connector 17 protrudes from the opening 23 directly above, and the wire harness 13 is extracted from the horizontal through hole 27. A terminal block 39 that accommodates a connection partner is provided above the floor panel 11.

  Subsequently, as shown in FIG. 2B, the shield shell 21 is moved in the direction of the arrow to approach the floor panel 11, and the terminal 19 is inserted into the opening 25. Here, a schematic diagram when the terminal 19 and the connection partner 41 are viewed from directly above is shown below FIG. The connection partner 41 has a pair of elastic members 42. The terminal 19 that moves between the pair of elastic members 42 is connected to the connection partner 41 by being pressed against the elastic members 42. FIG. 2B shows a state before the terminal 19 and the connection partner 41 are connected.

  Next, as shown in FIG. 2 (c), the pair of protrusions 31 of the flange portion 29 are brought into contact with the slide surface 37 of the protrusion 33, and along the rail-shaped slide surface 37 in the direction of the arrow. Slide in a straight line. As a result, the shield shell 21 is supported by the floor panel 11 via the pair of protrusions 33, and the pair of protrusions 31 slide along the slide surface 37. Further, the terminal 19 also moves in the opening 23 as the projections 31 slide. When each protrusion 31 reaches the set position (fixed position) of the slide surface 37, the terminal 19 is connected to the connection partner 41 as shown in the lower part of FIG. Then, by fastening the flange portion 29 to the floor panel 11 with bolts, the shield shell 21 is fixed to the floor lower surface 15 and the connector 17 is fixed (held) to the floor lower surface 15.

  In FIG. 2, the terminal 19 and the connection partner 41 are connected when each projection 31 reaches the set position of the slide surface 37, but the present invention is not limited to this, and the terminal 19 May be connected to the connection partner 41 before each projection 31 reaches the set position.

  According to the present embodiment, when the shield shell 21 is fixed to the floor lower surface 15, the shield shell 21 can be set at the fixed position of the floor lower surface 15 while being supported by the slide surface 37. There is no need to support the shield shell 21. Therefore, when the shield shell 21 is fixed to the floor lower surface 15, a fastening operation such as a bolt can be performed with both hands, so that the work efficiency can be increased.

  The slide surface 37 is pressed against the protrusion 31 when the tip ends of the pair of protrusions 31 slide, and the paint peels off due to wear. Thereby, since the shield shell 21 is brought into contact with the slide surface 37 without any paint surface interposed therebetween, the shield shell 21 can be electrically connected to the floor panel 11 via the protrusion 33, and the shielding property can be improved. 1 has a V-shaped cross section, the coating of the slide surface 37 can be more reliably peeled off.

  In the example of FIG. 2, when the shield shell 21 is slid, a part of the opening 25 is opened. However, by appropriately setting the size and shape of the flange portion 29, The opening 25 can be completely sealed.

  Next, another embodiment of a connector fixing structure and fixing method to which the present invention is applied will be described with reference to the drawings. Since the present embodiment is basically the same as the above-described embodiment, different points will be mainly described, and the same components will be denoted by the same reference numerals and description thereof will be omitted. In the above embodiment, the shield shell is moved in the linear direction along the slide surface. However, the present embodiment is different in that the shield shell is rotated around the axis.

  As shown in FIG. 3A, the shield shell 51 of this embodiment is formed by stacking a plurality of cylindrical bodies coaxially with each other, and these rotary bodies can rotate independently about their axes. . That is, the shield shell 51 has a main body 53 having a through-hole 27 of the wire harness 13 and a rotating part 55 that is formed coaxially with the main body 53 and rotates about an axis relatively independently of the main body 53. have. The rotating portion 55 is integrally formed with a flange portion 29 at the upper end portion thereof. The terminal 19 of the connector protrudes from the opening 23 of the rotating part 55 along the axis of the rotating part 55.

  The flange portion 29 has four projecting portions 57 (first projecting portions) projecting in the projecting direction of the terminal 19. Each protrusion 57 is connected to the flange portion 29 and has conductivity, and is provided apart from each other in the circumferential direction around the axis of the rotating portion 55, that is, the axis of the terminal 19. And an extending portion 59 (first extending portion) extending in a direction away from the shaft.

  On the other hand, the floor panel 11 has four protrusions 61 (second protrusions) that hang down from the periphery of the opening 61. Each protrusion 61 is formed in an arc shape in cross section in a direction perpendicular to the axial direction, and is formed in a cylindrical shape as a whole with the peripheral edges of the opening 61 spaced apart from each other in the circumferential direction. Each protrusion 61 has an extending portion 63 (second extending portion) that extends toward the axis. The gaps in the circumferential direction between adjacent extending portions 63 are formed so that the extending portions 59 can be inserted in the axial direction of the terminals 19, respectively. A slide surface 65 on which the extension portion 59 slides is formed on the surface of the extension portion 63 on the side facing the floor panel 11.

  Next, a procedure for fixing the shield shell 51 to the floor lower surface 15 of the floor panel 11 will be described with reference to FIGS. FIG. 4 shows a top view when the protrusion 61 and the extension 59 are viewed from the floor panel 11. First, as shown in FIG. 3A, a shield shell 51 in which the connector 17 is accommodated is prepared. A circular opening 67 is formed in the floor panel 11. Further, a terminal block 69 is provided above the floor panel 11, and a connection partner is held coaxially with the opening 65 on the terminal block 69.

  Subsequently, as shown in FIG. 3B, the shield shell 51 is moved in the direction of the arrow so as to be close to the floor panel 11, and as shown by the dotted lines in FIG. Insert along the gap of the protruding portion 63. Thereby, the front-end | tip part of the terminal 19 is rotatably connected to the connection partner of the terminal block 69 through the opening 67 coaxially. That is, the four extending portions 59 and the four extending portions 63 are arranged coaxially with each other. Then, the shield 55 is supported by the protrusion 61 by rotating the rotating portion 55 slightly and bringing the extending portion 59 into contact with the slide surface 65 of the extending portion 63.

  Next, as shown in FIG. 3C, the rotating unit 55 is further rotated in the same rotational direction from this state. Here, each slide surface 65 is formed such that the extension portion 59 slides when the extension portion 59 is rotated around the axis of the terminal 19 in a state where the terminal 19 and the connection partner are connected. Yes. For this reason, the extension part 59 moves along the slide surface 65 while contacting the slide surface 65 by rotating the rotation part 55. That is, as shown in FIG. 4, the extending portion 59 slides and rotates in the direction of the arrow along the slide surface 65 from the position of the dotted line, and moves to the set position (fixed position) of the solid line.

  Even in this configuration, when the shield shell 51 is fixed to the floor lower surface 15, the shield shell 51 can be set at a fixed position while being supported by the slide surface 65, so that the operator supports the shield shell 51. There is no need. For this reason, when fixing the shield shell 51 to the floor lower surface 15, a fastening operation | work with a volt | bolt etc. can be performed with both hands, and work efficiency can be improved. In addition, since the paint on the slide surface 65 can be peeled off by sliding the extending portion 59 along the slide surface 65, the shielding performance of the shield shell 51 is improved by the same principle as in the above-described embodiment. Can do.

  In addition, in the extension part 59 of this embodiment, as in the extension part 29 described above, the surface facing the slide surface 65 is, for example, a single piece extending along the moving direction of the extension part 59 or By providing a plurality of protrusions (for example, a V-shaped cross section), it is possible to easily peel off the coating on the slide surface 65.

  As mentioned above, although embodiment of this invention has been explained in full detail with drawing, said embodiment is only an illustration of this invention and this invention is not limited only to the structure of said embodiment. . Needless to say, even if there is a design change within a range not departing from the gist of the present invention, it is included in the present invention.

DESCRIPTION OF SYMBOLS 11 Floor panel 13 Wire harness 15 Floor lower surface 17 Connector 19 Terminal 21, 51 Shield shell 23, 25 Opening 29 Flange part 31, 33, 57, 61 Projection part 35, 59, 63 Extension part 37, 65 Sliding surface 41 Connection partner 55 Rotating part

Claims (6)

Fixing the shield shell containing the connector to the lower surface side of the conductive wall portion, and fixing the connector that connects the terminal protruding from the connector to the connection partner located on the upper surface side of the wall portion through the opening of the wall portion Structure,
The shield shell has a flange portion extending in a direction intersecting with the axial direction of the terminal, and a first protrusion protruding from the flange portion, and the wall portion hangs down from a peripheral edge of the opening. The second protrusion has a slide surface on which the first protrusion slides while supporting the shield shell,
The connector fixing structure in which the terminal and the mating terminal are connected to each other until or when the first protrusion reaches the set position along the second protrusion.   2. The connector fixing according to claim 1, wherein the first protrusion is formed as a pair of protrusions protruding from the flange portion on the opposite side to the protruding direction of the terminal and extending substantially parallel to each other. Construction.   The connector fixing structure according to claim 2, wherein each of the first protrusions has a V-shaped cross section. The first protrusions protrude in the protruding direction of the terminal, and are provided in a plurality spaced apart from each other in the circumferential direction around the axis of the terminal, each extending in a direction away from the axis of the terminal. Having a first extension,
The second protrusions are cylindrically spaced apart from each other in the circumferential direction, each having a second extension extending toward the central axis, and each of the adjacent second extensions The gap is formed so that each of the first extending portions can be inserted,
Each of the slide surfaces is formed in the second extension part, and when the terminal is connected to the connection partner and the first extension part is rotated around the axis of the terminal, The connector fixing structure according to claim 1, wherein each of the extending portions is formed to be slidable.   The connector fixing structure according to claim 4, wherein the shield shell is formed by stacking a plurality of cylindrical bodies coaxially with each other, and each of the cylindrical bodies is formed so as to be independently rotatable about an axis. Fixing the shield shell containing the connector to the lower surface side of the conductive wall portion, and fixing the connector that connects the terminal protruding from the connector to the connection partner located on the upper surface side of the wall portion through the opening of the wall portion A method,
The shield shell has a flange portion extending in a direction intersecting with the axial direction of the terminal, and a first protrusion protruding from the flange portion, and the wall portion hangs down from a peripheral edge of the opening. The second protrusion has a slide surface on which the first protrusion slides while supporting the shield shell,
A connector fixing method in which the first projecting portion is slid along the slide surface to a set position, and the shield shell is fixed to the wall portion in a state where the terminal and the connection partner are connected.

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