JP4060068B2 - Shield connector device for equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shield connector device for equipment.
[0002]
[Prior art]
When connecting the connector of the power circuit extending from the inverter device provided in the engine room of the electric vehicle to the motor of the wheel, if it is not possible to secure a sufficient wiring space in the vicinity of the motor, it was derived from the connector. The wires must be routed so that they run along the outer wall of the motor by bending the wire almost at a right angle.
[0003]
However, the electric wire used in the power circuit is thicker in the conductor and insulation coating than the electric wire used in the signal circuit, and the bending rigidity and the restoring force at the time of bending deformation are high. Therefore, the electric wire is bent to a desired curvature. It is difficult to route in state.
In addition, as disclosed in Japanese Utility Model Laid-Open No. 5-69868, as a means for bending the electric wire led out from the rear surface of the connector housing, the inner surface of the electric wire cover is covered. In some cases, the wire bent sideways is led out from the wire cover to the side, but the means using this wire cover is intended for applications with relatively low bending rigidity used in signal circuits, etc. It is difficult to apply to power wires with high bending rigidity.
[0004]
Therefore, a structure in which the terminal fitting connected to the electric wire, that is, the entire connector is bent in an L shape, instead of bending the electric wire led out from the connector, can be considered. If the connector is L-shaped, the connection part of the terminal fitting protruding from one end of the connector is inserted into the connection hole of the motor case, connected to the motor side terminal, and led out from the other end of the connector. The cable can be routed along the outer wall surface of the case.
[0005]
[Problems to be solved by the invention]
In the connector device using the L-shaped connector as described above, a structure in which a plurality of connectors and their electric wires are collectively shielded by a shield shell may be taken. In this case, as shown in FIG. 7, the terminal portion of the shield shell 101 is attached to the outer wall surface of the motor case 103 in a state of covering the portion 102A of the connector 102 protruding from the motor case 103. Since the protruding portion 102A of the connector 102 from the motor case 103 is bent in an L shape, it is necessary to bend the terminal portion 101A of the shield shell 101 at a right angle in accordance with the protruding shape of the connector 102. Therefore, a space 104 is secured between the protruding portion 102A of the connector 102 from the motor case 103 and the outer wall surface of the motor case 103 so that the terminal portion 101A of the shield shell 101 can be inserted to change the direction at a right angle. Must. However, in order to secure the space 104, it is necessary to increase the projecting dimension of the connector 102 from the outer wall of the motor case 103. Therefore, an installation space to be secured for the connector device also on the outer wall surface side of the motor case 103. The problem arises that becomes large.
[0006]
The present invention has been made in view of the above circumstances, and aims to reduce the size of the entire apparatus when a plurality of L-shaped connectors and electric wires are collectively shielded by a shield shell.
[0007]
[Means for Solving the Problems]
The invention of claim 1 is connected to a device in which a plurality of device side terminals are provided inside the shield case and a connection hole corresponding to the device side terminal is formed in the shield case. And a plurality of connectors having a connection portion with the device side terminal projecting from one end and a wire leading out from the other end, wherein the connection portion is shielded from the connection hole. The connector is inserted into a case and connected to the device-side terminal, the connector protrudes from the connection hole in a substantially L shape, and the electric wire is routed along an outer wall surface of the shield case, and the plurality of connectors and In the case where the electric wires are collectively shielded by the collective shield means, the collective shield means projects out of the shield case of the connector. A shield cover that can be attached to the shield case in a form that covers a substantially L-shaped portion, and that has a shell connection opening formed in a direction substantially the same as a direction in which the electric wire is led out from the connector, and a plurality of the shield covers A shield shell capable of being connected to the opening for shell connection in a state of surrounding an electric wire, and a substantially L-shaped portion protruding out of the shield case and / or a plurality of the electric wires of the connector. And a cylindrical attachment for connecting the shield cover and the shield shell by being attached to the end of the shield shell and to a flange provided at a hole edge of the shell connection opening. It includes a both wherein the shield cover, the shell connecting opening and the case mounting opening corresponding to the said connecting holes Openings with communicating, and configured to open opening for the internal is opened to the outer wall surface side of the shield case of the shield cover is formed.
[0009]
[Action and effect of the invention]
[Invention of Claim 1]
The portion of the multiple connectors that protrudes out of the shield case in a substantially L shape and the multiple wires that are led out from the other end of these connectors are gathered together by a shield cover attached to the shield case and a shield shell connected to the shield cover. And shielded.
[0010]
The substantially L-shaped part of the connector that protrudes outside the shield case is covered with a shield cover, and the terminal part of the shield shell is connected to the shield cover while keeping a straight line substantially parallel to the outer wall surface of the shield case. Therefore, a space for bending the end portion of the shield shell is not required between the connector and the outer wall surface of the shield case, and accordingly, the protruding dimension of the connector to the outside of the shield case can be reduced. Miniaturization can be achieved.
[0011]
In addition, since the opening for opening is formed, a part of the wall portion constituting the shield cover does not have to be interposed between the substantially L-shaped protruding portion of the connector and the outer wall surface of the shield case. Therefore, the connector can be brought closer to the outer wall surface of the shield case, and thus the device can be further miniaturized.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0013]
First, the device 40 to which the device shield connector apparatus A of the present embodiment is connected will be described. The device 40 is provided with three device-side terminals 42 (in FIG. 2, only one device-side terminal 42 appears in the figure because the device-side terminals 42 are arranged in a direction orthogonal to the paper surface) inside the shield case 41. In addition, three circular connection holes 43 are formed at positions corresponding to the three device-side terminals 42 on the upper surface wall of the shield case 41. Three female screw holes 44 for fixing the connector 10 to the shield case 41 are formed in the upper surface wall of the shield case 41 adjacent to each connection hole 43, and a shield cover 17 described later is attached to the shield case. Two female screw holes (not shown) for fixing to 41 are formed. The three device-side terminals 42 have a flat plate shape and project upward from the device body 45 toward the connection hole 43, and each device-side terminal 42 is formed with a bolt hole (not shown). Yes.
[0014]
The shield connector device A for equipment of this embodiment includes three connectors 10, electric wires 11 led out from the connectors 10, and collective shielding means 16 that shields the three connectors 10 and the electric wires 11 together. Configured.
The connector 10 is generally L-shaped as a whole, and includes a terminal fitting 12 and a connector main body 13 formed integrally with the terminal fitting 12 by resin molding. The connector body 13 includes a downward hanging portion 13a and a horizontal portion 13b extending backward from the upper end of the hanging portion 13a. A plate-like connecting portion 12a that is a part of the terminal fitting 12 protrudes from the lower end surface of the hanging portion 13a, and a bolt hole 12b is formed in the connecting portion 12a. From the rear end face of the horizontal portion 13b, the electric wire 11 crimped to the terminal fitting 12 inside the connector main body 13 is led out backward. The drooping portion 13a of the connector body 13 is fitted into the connection hole 43 of the shield case 41 from above (from the outside of the shield case 41). A bracket 15 having a bolt hole 15a is attached.
[0015]
The collective shield means 16 includes a shield cover 17 attached to the upper surface of the shield case 41, a shield shell 26, and a cylindrical attachment 27 for attaching the shield shell 26 to the shield cover 17.
The shield cover 17 is made of aluminum die cast, and the lower surface (the surface corresponding to the upper surface of the shield case 41) and the rear surface are opened over the entire surface. The front wall 18 and the top wall 19 of the shield cover 17 are smoothly connected to each other in an arc shape, and the left and right side walls 20 are connected to the left and right side edges of the front wall 18 and the top wall 19. A wide portion on the front side in the open area of the lower surface of the shield cover 17 is a case attachment opening 21 that collectively corresponds to the three connection holes 43. The open area on the rear surface of the shield cover 17 is a shell connection opening 22 that opens in a direction substantially the same as the direction in which the electric wire 11 is led out from the connector 10. The rear end portion of the open area of the lower surface of the shield cover 17 allows the case mounting opening 21 and the shell connection opening 22 to communicate with each other and the inside of the shield cover 17 to the outside (below the shield cover 17, That is, the opening 23 is opened to the shield case 41 side. The shield cover 17 is assembled to the shield case 41 so as to collectively cover the horizontal portions 13b of the three connectors 10 attached to the shield case 41.
[0016]
In the shield cover 17, attachment pieces 24 having bolt holes 24 a are respectively formed at the lower right end of the front wall 18 and the rear lower end of the left side wall 20. A flange portion 25 is formed in a gate-shaped region extending from the rear end edge of the upper surface wall 19 to the rear end edges of the left and right side walls 20 in the shield cover 17. A screw hole 25a is formed.
The shield shell 26 is composed of a braid made by knitting a thin metal wire into a flat cylindrical shape, and the three electric wires 11 led out from the connector 10 are collectively inserted into the shield shell 26. Yes.
[0017]
The tubular fixture 27 is formed in a flat ring shape that is matched to the shield shell 26 as a whole, and includes a conductive inner ring 28 and a conductive outer ring 29, and is fixed to the end portion of the shield shell 26. ing. At the time of fixing, the end portion of the shield shell 26 is fitted on the outer periphery of the inner ring 28, and the outer ring 29 is fitted outside the outer ring 28. In this state, both the rings 28 and 29 are caulked to the shield shell 26. As a result, the shield shell 26 is sandwiched between the rings 28 and 29 and is fixed in a conductive state. In addition, attachment pieces 30 having bolt holes 30a are formed at both left and right ends of the inner ring 28.
[0018]
Next, the operation of this embodiment will be described.
When connecting the shield connector device A for equipment of this embodiment to the equipment 40, first, the seal ring 14 and the bracket 15 are attached to the connector 10, and the drooping portion 13a of the connector 10 is fitted into each connection hole 43. The connecting portion 12 a is overlapped with the device side terminal 42. Then, the bolt 31 passed through the bolt hole 15 a of the bracket 15 of each connector 10 is screwed into the female screw hole 44 of the shield case 41 and tightened, and the connector 10 is fixed to the shield case 41 via the bracket 15. In this state, the upper end portion of the hanging portion 13a of the connector 10 and the entire horizontal portion 13b project in a substantially L shape outward (upward) of the shield case 41, and the electric wire 11 led out from the horizontal portion 13b. Is routed rearward along the outer surface of the shield case 41. Further, the gap between the connection hole 43 and the hanging portion 13a is sealed by the seal ring 14. On the other hand, inside the shield case 41, the connection portion 12 a is connected to the device side terminal 42 by tightening the bolt 32 with the nut 33 through the bolt 32 to the bolt hole 12 b of the connection portion 12 a and the bolt hole of the device side terminal 42.
[0019]
Next, the terminal portion of the shield shell 26 and the shield cover 17 that are temporarily assembled so as to enclose the three electric wires 11 at once are assembled. At the time of assembly, a bolt (not shown) passed through the bolt hole 30a of the inner ring 28 is screwed into the female screw hole 25a of the shield cover 17 and tightened. The terminal part of the shield shell 26 is connected to be conductive.
[0020]
Thereafter, the shield cover 17 is assembled to the shield case 41. When assembling, the shield cover 17 is directed to the outer surface of the shield case 41, and the shield cover 17 causes the substantially L-shaped portions (the upper end portion of the drooping portion 13a to protrude from the shield case 41 to the outside of the three connectors 10). The horizontal portion 13 b) is collectively covered and the case attachment opening 21 of the shield cover 17 is made to correspond to the three connection holes 43. When the bolt 34 passed through the bolt hole 24a of the shield cover 17 is screwed into the female screw hole of the shield case 41 and tightened, the shield cover 17 has the lower end edge of the front wall 18 and the lower end edges of the left and right side walls 20. Is fixed to the shield case 41 so as to be conductive.
[0021]
In this assembled state, the substantially L-shaped portions of the three connectors 10 that protrude to the outside of the shield case 41 are shielded by the shield cover 17 and the cylindrical attachment 27 (the terminal portion of the shield shell 26), and the three connectors 10 The three electric wires 11 led out from are collectively shielded by the shield shell 26. The shield shell 26 that collectively shields the three electric wires 11 is straightly arranged with the lower surface thereof approaching the outer surface of the shield case 41. Therefore, the terminal portion of the shield shell 26 and the cylindrical fixture 27 is also located close to the outer surface of the shield case 41. That is, there is almost no wasted space between the outer surface of the shield case 41 and the shield shell 26 and the cylindrical fixture 27.
[0022]
As described above, in the present embodiment, the substantially L-shaped portion of the connector 10 that protrudes out of the shield case 41 is covered with the shield cover 17, and the terminal portion of the shield shell 26 is substantially parallel to the outer wall surface of the shield case 41. Since it is connected to the shield cover 17 while maintaining a straight line shape, a space for bending the terminal portion of the shield shell 26 is not required between the connector 10 and the outer wall surface of the shield case 41. The projecting dimension of the connector 10 to the outside of the shield case 41 can be reduced, and as a result, the overall size of the apparatus can be reduced.
[0023]
Further, since the opening 23 for opening is formed in the shield cover 17, a part of the wall portion constituting the shield cover 17 is interposed between the substantially L-shaped protruding portion of the connector 10 and the outer wall surface of the shield case 41. Thus, the connector 10 can be brought closer to the outer wall surface of the shield case 41, and thus further downsizing of the apparatus is realized.
In the present embodiment, the rear end portion of the horizontal portion 13b protrudes rearward from the shield cover 17 and is therefore surrounded by the cylindrical fixture 27. However, the shield cover 17 is extended rearward. Thus, the entire horizontal portion 13b may be covered with the shield cover 17 alone.
[0024]
[Other Embodiments]
The present invention is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, the shield cover is made of aluminum die cast. However, according to the present invention, a metal plate material that has been deep-drawn by pressing may be used as the shield cover, and the die is molded by a conductive resin. It is good also as a shield cover.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of the first embodiment. FIG. 2 is a longitudinal sectional view of a connector assembled to a device. FIG. 3 is a horizontal sectional view of a connector assembled to the device. 5 is a perspective view of the shield cover as viewed from the back side. FIG. 6 is a cross-sectional view of the shield cover. FIG. 7 is a cross-sectional view of a conventional example.
A ... Device shield connector device 10 ... Connector 11 ... Electric wire 12a ... Connection portion 16 ... Collective shield means 17 ... Shield cover 21 ... Case attachment opening 22 ... Shell connection opening 23 ... Opening opening 26 ... Shield shell 40 ... Device 41 ... Shield case 42 ... Device side terminal 43 ... Connection hole

Claims (1)

A plurality of device side terminals are provided inside the shield case and connected to a device in which a connection hole corresponding to the device side terminal is formed in the shield case,
As a whole, it has a substantially L shape, and has a plurality of connectors that project the connecting portion with the device side terminal from one end and lead out the electric wire from the other end,
The connection portion is inserted into the shield case from the connection hole and connected to the device-side terminal,
The connector protrudes from the connection hole into a substantially L shape, and the electric wire is routed along the outer wall surface of the shield case.
In the case where the plurality of connectors and electric wires are collectively shielded by the collective shielding means,
The collective shielding means is
A shell connection opening that can be attached to the shield case in a form that covers a substantially L-shaped portion that protrudes out of the shield case out of the connector, and that opens in substantially the same direction as a direction in which the electric wire is led out from the connector. A formed shield cover;
A shield shell capable of being connected to the opening for shell connection in a state of surrounding a plurality of the electric wires;
The connector is attached to the end portion of the shield shell in a state of surrounding the substantially L-shaped portion protruding outside the shield case and / or the plurality of electric wires, and provided at the hole edge of the opening for connecting the shell. It is configured to be provided with a cylindrical fixture that connects the shield cover and the shield shell by being attached to the flange portion .
The shield cover communicates both the case mounting opening corresponding to the connection hole and the shell connection opening, and the inside of the shield cover is opened to the outer wall surface side of the shield case. An opening connector for opening is formed, and the shield connector device for equipment is characterized.

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