JP3611700B2 - Connector structure for shielded wire - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector mounting structure for a shielded electric wire that can improve assemblability and high frequency characteristics.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 5 and 6, the end of the shielded electric wire 1 is peeled off so that the conductor 2, the insulator 3, and the shield layer 4 are exposed, and a terminal 6 is attached to the conductor 2, The housing 7 is accommodated in the metal shell 8, the shield layer 4 is caulked with the front barrel 8 a of the metal shell 8, and the insulating sheath 5 is caulked with the rear barrel 8 b, so that the metal shell 8 is covered with the connector cover. 9 has a connector mounting structure for the shielded electric wire 1 accommodated in the housing 9 (see Japanese Utility Model Publication No. 4-55428).
[0003]
[Problems to be solved by the invention]
However, since it is necessary to caulk and attach the terminal 6 to the conductor 2 in advance, there is a problem that the assembling workability is bad and the large slit 8c needs to be formed in the metal shell 8, and the high frequency characteristics are deteriorated. .
[0004]
The present invention has been made in order to solve the above-described conventional problems, and an object of the present invention is to provide a shielded wire connector mounting structure capable of improving assemblability and high-frequency characteristics.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention peels off the end of the shielded wire so that the conductor and the shield layer are exposed, while forming a barrel for caulking the conductor of the shielded wire at the tip of the metal shell. Forming a terminal insertion tube portion for inserting the terminal through the first insulating sleeve, and caulking the barrel of the terminal to the rear portion of the metal shell through the second insulating sleeve; and the shielded electric wire Forming a second barrel for caulking the shield layer and a third barrel for caulking the insulation sheath of the shielded wire, and after caulking all the barrels, the metal shell is accommodated in the connector cover. A shielded wire connector mounting structure is provided.
[0006]
According to the present invention, the first insulating sleeve and the second insulating sleeve are fitted to the terminal, the first insulating sleeve is inserted into the terminal insertion tube portion of the metal shell, and the second insulating sleeve is inserted into the first barrel of the metal shell. After that, the conductor of the shielded wire is set in the terminal barrel, the shield layer is set in the second barrel, and the insulating sheath is set in the third barrel.
[0007]
Thereafter, when the first barrel, the second barrel, and the third barrel are caulked together, the first barrel caulks the terminal barrel through the second insulating sleeve, so that the conductor is caulked by the terminal barrel. The shield layer is caulked by the second barrel, and the insulating sheath is caulked by the third barrel.
[0008]
If the first insulating sleeve and the second insulating sleeve are integrally formed as in claim 2, the number of parts can be reduced.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same number is attached | subjected to the location of the same structure and effect | action as a prior art, and detailed description is abbreviate | omitted.
[0010]
1 and 2 show the connector mounting structure of the first embodiment.
[0011]
In the shielded electric wire 1, the terminal is peeled off so that the conductor 2 and the shield layer 4 are exposed as in the conventional case.
[0012]
The metal shell 10 is formed with a cylindrical terminal insertion tube portion 10a at the front portion, and a first barrel 10b, a second barrel 10c, and a third barrel 10d raised in a substantially V shape are sequentially formed at the rear portion. Is formed.
[0013]
The drum-shaped terminal 11 is formed with a cylindrical female terminal portion 11a at the front portion and a barrel 11b curved at a substantially C-shape at the rear portion.
[0014]
A long first insulating sleeve 12a is fitted on the female terminal portion 11a of the terminal 11, and a short second insulating sleeve 12b is fitted on the barrel 11b.
[0015]
The first insulating sleeve 12 a is fitted into the terminal insertion cylinder portion 10 a of the metal shell 10, and the second insulating sleeve 12 b is set on the barrel 11 b of the terminal 11.
[0016]
If it is the said structure, the 1st insulation sleeve 12a is externally fitted to the female terminal part 11a of the terminal 11, and the 2nd insulation sleeve 12b is externally fitted to the barrel 11b.
[0017]
Then, the first insulating sleeve 12 a is inserted into the terminal insertion cylinder portion 10 a of the metal shell 10, and the second insulating sleeve 12 b is set on the first barrel 10 b of the metal shell 10.
[0018]
Further, the conductor 2 of the shielded electric wire 1 is set on the barrel 11b of the terminal 11, the shield layer 4 is set on the second barrel 10c, and the insulating sheath 5 is set on the third barrel 10d.
[0019]
Thereafter, as shown in FIG. 2A, the first barrel 10b, the second barrel 10c, and the third barrel 10d are caulked together with the jig 13. It should be noted that the caulking may be performed sequentially instead of collectively.
[0020]
As shown in FIG. 2B, the first barrel 10b is caulked with the barrel 11b of the terminal 11 via the second insulating sleeve 12b, so that the conductor 2 is caulked with the barrel 11b. Further, the shield layer 4 is caulked by the second barrel 10c, and the insulating sheath 5 is caulked by the third barrel 10d.
[0021]
Thereafter, the metal shell 10 is accommodated in the cover 9 as in the conventional case.
[0022]
As described above, since the first barrel 10b, the second barrel 10c, and the third barrel 10d can be caulked together by the jig 13, the assembly workability is improved and automation is facilitated. In addition, since the metal shell 10 has few slits, high frequency characteristics are improved. Furthermore, since the second insulating sleeve 12b is also present in the caulking portion of the conductor 2, the high frequency characteristics of this portion are also improved.
[0023]
3 and 4 show the connector mounting structure according to the second embodiment. The difference from the first embodiment is that the first insulating sleeve 12a and the second insulating sleeve 12b are integrally formed. If so, the number of parts can be reduced to one and the assembly workability when accommodated in the metal shell 10 is also improved.
[0024]
【The invention's effect】
As is clear from the above description, the connector mounting structure for the shielded wire according to the present invention is such that when the first barrel, the second barrel, and the third barrel of the metal shell are caulked together, the first barrel is the second. By crimping the terminal barrel through the insulating sleeve, the conductor is caulked by the terminal barrel, the shield layer is caulked by the second barrel, and the insulating sheath is caulked by the third barrel. It becomes easier to automate. Further, since the metal shell has few slits, the high frequency characteristics are good, and the second insulating sleeve is also provided in the caulking portion of the conductor, so that the high frequency characteristics of this portion are also good.
[0025]
When the first insulating sleeve and the second insulating sleeve are integrally formed as in the second aspect, the number of parts can be reduced and the assembling workability when accommodated in the metal shell is also improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment of a connector mounting structure according to the present invention.
FIG. 2A is a cross-sectional view of a state in which an insulating sleeve and a female terminal are inserted into a metal shell, and FIG. 2B is a cross-sectional view corresponding to the line P-P of FIG. .
FIG. 3 is an exploded perspective view of a second embodiment of a connector mounting structure.
4A is a cross-sectional view of a state in which an insulating sleeve and a female terminal are inserted into a metal shell, and FIG. 4B is a cross-sectional view corresponding to the line P-P of FIG. .
FIG. 5 is an exploded perspective view of a conventional connector.
6 is an assembled perspective view of the connector of FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shield electric wire 2 Conductor 3 Insulator 4 Shield layer 5 Insulation sheath 7 Housing 9 Cover 10 Metal shell 10a Terminal insertion cylinder part 10b 1st barrel 10c 2nd barrel 10d 3rd barrel 11 Terminal 11b Female terminal part 12a 1st insulation sleeve 12b Second insulation sleeve

Claims (2)

The terminal of the shielded electric wire is peeled off so that the conductor and the shield layer are exposed, and a terminal having a barrel for caulking the conductor of the shielded electric wire is inserted into the tip of the metal shell through the first insulating sleeve. Forming a terminal insertion tube portion, and a first barrel for caulking the barrel of the terminal via a second insulating sleeve at a rear portion of the metal shell; a second barrel for caulking a shield layer of the shielded electric wire; A connector mounting structure for a shielded wire, wherein a third barrel for crimping an insulating sheath of the shielded wire is formed, and after all the barrels are crimped, a metal shell is accommodated in the connector cover. 2. The shield wire connector mounting structure according to claim 1, wherein the first insulating sleeve and the second insulating sleeve are integrally formed.

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