This invention relates to a method of manufacturing a connector for electromagnetic shield, including assembly process such as connecting a terminal to an electric wire while passing the electric wire through a housing.
In one conventional configuration, there is described, e.g., in the PTL 1, a connector for transmitting an electric output from or to a receptacle connector, particularly in an automobile, including a divided isolating resin housing composed of a housing main body and a housing cover attachable to the housing main body, wherein a plug of the housing main body is connectable to the receptacle connector, and the electric wire is sloped relative to an area for the electric wire of the housing cover at a position fixable for the electric wire, i.e., the electric wire being bent at right angle.
[PTL 1]
Japanese Patent Application Laid-Open Publication No. 2008-34,389 (FIG. 5)
However, with the connector in the above-mentioned conventional PTL 1, there has been drawback that when accommodating a thick shield electric wire for high voltage within an L-shaped shell conductor or component divisible from side to side, it is difficult to bend in the same shape as the shell conductive member, and there has been concern that any rattles are induced between the shell conductor and the housing cover when a lance or a lock projection is used as a lock, and thereby workability may be reduced of assembling the shell conductor and the housing cover to the housing main body, because provisionally fixing of the shell conductor to the housing cover is made by mounting the lock on a component of the receptacle side after accommodating the shield electric wire within the shell conductor and swaging a shielded conductive of the electric wire.
Accordingly, an object of the invention is, in view of the above, to provide a method of manufacturing a connector that eliminates a work for accommodating the shield electric wire within the housing with the shield electric wire bent, makes a terminal connected to the shield electric wire smoothly and readily accommodated within the housing while insulated, and placed without any rattles within the housing while insulated, and further makes assembling of the connector wholly improved and readily performed.
In order to attain the above-mentioned object, there is provided a method for manufacturing a connector having a conductive housing including a rear wall continuing to an annular wall, and a tube wall continuing to down the rear wall, the method comprising the steps of: (a) passing a shield electric wire from a lower opening of the tube wall of the conductive housing to a front opening of the annular wall while bending the shield electric wire; (b) putting a shield terminal movably around the shield electric wire from top of the shield electric wire; (c) exposing a core wire and a braid of the shield electric wire by stripping a tip thereof; (d) connecting an L-shaped terminal to the core wire; (e) mounting an L-shaped insulation inner housing outside the L-shaped terminal; (f) connecting the shield terminal to the braid; and (g) accommodating a vertical part of the inner housing within the conductive housing by pulling the shield electric wire in an direction contrary to that of the shield electric wire passed through, so as to project a horizontal part of the inner housing from the front opening.
The above-mentioned configuration makes it possible to connect the L-shaped terminal to the shield electric wire with the shield electric wire through the conductive housing, to isolate the L-shaped terminal from outside by the inner housing, and to place smoothly and readily the L-shaped inner housing within the conductive housing by pulling out the shield electric wire toward the lower opening side and pulling in the inner housing accommodating the L-shaped terminal within the conductive housing. Preferably, the inner housing is made divisible.
There is provided a method for manufacturing the connector according to the present invention recited in claim 2 characterized about the method recited in claim 1 in that the shield terminal is provided with an annular part brought into connection with the braid, and a plate extending from the annular part and including a projection with a bore, the method further comprising: (i) thread-fastening the shielded terminal to the rear wall of the conductive housing by inserting a bolt through the bore of the projection.
The above-mentioned configuration makes it possible to position the annular part of the shield electric wire near the vertical part of the inner housing, to position the plate along the vertical part, to fasten the projection with the bolt near the vertical part of the inner housing, and thereby, to place, i.e., provisionally fasten the L-shaped terminal within the inner housing without any rattles while accommodated within the inner housing. It is performed by insetting a tool such as a driver from the front opening of the conductive housing to thread-fasten.
There is provided a method for manufacturing the connector according to the present invention recited in claim 3 characterized about the method recited in claim 2 by further comprising: (j) placing an insulation outer housing provided with a conductive shield shell therewithin outside the horizontal part of the inner housing; and (k) bolting a flange of the conductive shield shell and a flange of the outer housing to a flange of the annular wall of the conductive housing.
The above-mentioned configuration makes it possible to fasten the shield shell and the outer housing to each other along with the conductive housing at the same time. The inner housing is preferably fastened by letting its vertical flange sandwiched between the conductive housing and a flange of the outer housing or shield shell. A shell packing, if waterproof required, may be mounted between the conductive housing and the shield shell, or a housing packing between the shield shell and the outer housing.
There is provided a method for manufacturing the connector according to the present invention recited in claim 4 characterized about the method recited in claim 2 by further comprising: (l) putting a wire seal around the shield electric wire before passing the shield electric wire through the conductive housing; (m) moving the wire seal along the shield electric wire after placing the outer housing outside the horizontal part of the inner housing, to put the wire seal within the tube wall of the conductive housing; and (n) holding the wire seal by a holder.
The above-mentioned configuration makes it possible to adhere the wire seal to inside the tube of the conductive housing, and to hold by the holder without dropping out. Thereby, the wire seal can prevent water from infiltrating along the electric wire into the inner housing.
According to the invention recited in claim 1, it is made possible readily to pass the shield electric wire alone, or nearly in the same fashion, through the conductive housing, and smoothly and readily to accommodate the L-shaped terminal and the inner housing within the conductive housing by directly assembling the L-shaped terminal and the inner housing, and pulling out the shield electric wire. Assembly workability for the connector is thereby improved.
According to the invention recited in claim 2, it is made possible to place the L-shaped terminal within the conductive housing by thread-fastening the shield terminal to the conductive housing without any rattles while insulated by the inner housing. It is thereby improved of workability for post process assembly of components such as the outer housing.
According to the invention recited in claim 3, it is made possible to fix the shield shell and the outer housing to the conductive housing in improved workability. Furthermore, it is made possible to secure the inner housing by, i.e., upon sandwiching and holding at the time the inner housing between the conductive housing and the shield shell.
According to the invention recited in claim 4, it is made possible smoothly and securely to assemble the wire seal along the shield electric wire while positioning and fixing the inner housing of the terminal side of the shield electric wire within the conductive housing and within the outer housing.
[
According to the method for manufacturing or assembling the connector, a shield electric wire 2 is, as shown in
The shield electric wire 2 is conventional one, each provided with an isolating outer cover, a conductive metal braid or shield part inside the outer cover, a isolating inner layer inside the braid, a conductive core wire inside the inner layer, outside the outer cover of which a synthetic rubber wire seal 7 is preliminarily passed trough.
The electric wire 2 is as shown in
A conductive metal shield sleeve 8 and a conductive metal shield terminal 9 is, as shown in
The shield sleeve 8 is formed annular, and has a downside flange 8a and an upside main body (substituted by reference sign 8). The shield terminal 9 is composed of a annular part 9a, an elongated plate 9c projecting and extending upwardly from an upside flange 9b of the annular part 9a, a projection 9d with a bore 9e orthogonal to and at a tip of the plate 9c.
Then, as shown in
Then, as shown in
The inner housing 12 is as shown in
The block 19 is provided a slit 19a brought into positioning and coupling to the conductive housing 1. The inner housing 12 is allowed to be vertically divisible. The divided housing may in this case each be made integral in parallel. A pair of parallel divided tubes 13 is incorporated into the parallel tube (parallel part) 13, a pair of vertical divided tube 14 the vertical tube (vertical part) 14.
Then, as shown in
Pulling downward the electric wire 2 (a direction contrary to that of inserting the electric wire 2 as shown in
The block 19 back the inner housing 12 is as shown in
Then, as shown in
While the projection 9d of the shield terminal 9 of leftmost the electric wire 2 in the
The slit 19a back the block 19 of the inner housing 12 is as shown in
Then, as shown in
The shield shell 28 is, as shown in
The housing packing 29 has a lock projection 29a engaging with the bore 40 of the flange 32 of the shield shell 28, and mounted outside the tube 31. The annular projection 33 of the shield shell 28 is positioned to be pressed into the circumference slit 25 of the conductive housing 1 (
Overlapping the small flanges 38, 34 of the outer housing 27 and the shield shell 28, respectively, as shown in
The parallel tube 13 of the inner housing 12, as shown in
Then, a pair of front and rear divided holders 42a, 42b, as shown in
Then, nearly U-shaped lever 48 for low-insertion-force engagement is as shown in
Note that while in the above-mentioned embodiment the shield sleeve 8 has been utilized, it may be made possible that the annular wall 9a of the shield terminal 9a, avoiding the shield sleeve 8, is directly swaged and connected to the braid 2 of the electric wire 2. “The shield terminal” in claim 1 includes the one with or without a shield sleeve 8.
Further, note that while in the above-mentioned embodiment the shell packing 29, the housing packing 26, and the cable seal 7 have been utilized, it may be made possible to avoid these shield member if no need of waterproof. And in the above-mentioned embodiment the lever 48 for connector engagement has been mounted, it is made possible to avoid the lever 48 when manually connecting the connector 50 to the mating connector without the lever.
The method for manufacturing the connector according to the present invention may be utilized for readily assembling the electromagnetic shield connector.
Number | Date | Country | Kind |
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2010-091212 | Apr 2010 | JP | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/JP2011/058881 | 4/8/2011 | WO | 00 | 9/4/2012 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2011/129271 | 10/20/2011 | WO | A |
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Entry |
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Number | Date | Country | |
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20130019471 A1 | Jan 2013 | US |