JP2001185293A - Assembling method for connector assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely take the grounding of an external conductor of a coaxial wire or a shielding wire, without sacrificing workability of an assembly with a connector, in which a shield component is prepared beforehand in the core of the connector housing, and of which, if a spring pressure of the shield component is strengthened, a large force will be required to insert a terminal in the connector, and conversely, if spring pressure is weak, the grounding becomes unstable. SOLUTION: A shield member 13 is prepared as a separate member of a housing 3 of the connector, and the coaxial wire or the shielding wire, which has the terminal unit 1 at a noise end is set at a prescribed position of the housing 3 of this connector. After the setting, a spring piece 2 and the terminal unit 1 of the shield component 13 are mutually connected electrically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a connector assembly used in electronic equipment.

[0002]

2. Description of the Related Art An example of a connector for connecting an electric wire having an external conductor such as a coaxial wire or a shielded wire is disclosed in Japanese Patent Application Laid-Open No. Hei 8-96895. In this example, a structure is adopted in which a shield member is provided in advance inside the housing of the connector. The outer conductor terminal of the terminal unit is electrically connected by a spring piece provided on the shield member only by inserting a coaxial wire or a shielded wire provided with a terminal unit at the tip into this connector. The connector assembly is completed. When this shield member is connected to a conductive case or the like together with the housing, the coaxial cable or the outer conductor of the shield cable can be grounded.

[0003]

However, as described above,
The following problem arises with the method of assembling the connector assembly in which the shield member is provided in advance inside the connector housing and the coaxial cable or the shield cable having the terminal unit is inserted therein. In order to make sufficient contact between the shield member and the terminal unit,
When the spring pressure of the shield member is increased, a large force is required for inserting the terminal unit, and the workability for connection is deteriorated. Conversely, when the spring pressure of the shield member is reduced in order to reduce the force required for insertion in order to facilitate the insertion of the terminal unit, the electrical contact between the shield member and the terminal unit increases, and the ground becomes unstable, As a result, the shielding performance of the connector may be reduced.

In some cases, the connector must be lengthened due to the spring piece of the shield member.
Even when used for an electric wire that does not need to be shielded, it must be used with the shield member provided.

[0005]

SUMMARY OF THE INVENTION The present invention provides a method of assembling a connector assembly which solves the above-mentioned problems, and has a shield member provided separately from a connector housing and having an external conductor. If it is necessary to ground the outer conductor of the wire without using a shield member, use the terminal unit in the specified position of the connector housing. After being set at the position, the shield member and the terminal unit are electrically connected via a spring piece provided on the shield member.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The contents of the present invention will be described below with reference to the drawings. FIG. 4 shows a shield member 1 used in the present invention.
3 is a development view of FIG. The shield member 13 is made of, for example, phosphor bronze, and is protruded near both ends of the shield member main body, the spring piece 2 integrated with the shield member main body, and the connector housing 3, and is fitted to the mounting portion of the connector housing 3. And a shield member mounting portion having a mounting hole that can be used.
The shield member main body is bent in a U-shape, the spring pieces 2 are bent to the sides where their tip portions approach each other, and the shield member main body mounting portion is connected to the connector housing 3.
Is bent into a shape that fits into the two mounting portions.

FIG. 5 schematically shows a method of assembling the connector assembly according to the present invention. After inserting the terminal unit 1 from the back of the connector housing 3, the terminal unit 1 is bent as described above, and the shield member 13 on which the spring piece 2 is formed is mounted. When the shield member is attached, the spring piece 2 passes through a cutout provided on the back of the connector housing, and the tip of the spring piece 2 comes into contact with the outer conductor terminal of the terminal unit inserted into the connector housing. Thus, the terminal unit and the shield member are electrically connected via the spring piece 2.

FIG. 1 shows an example of the connector assembly of the present invention assembled in this manner, and FIG. 2 shows a cross section of the connector assembly cut along a horizontal plane. The present invention is characterized in that, as described above, after the terminal unit is inserted into the connector housing, the shield member and the terminal unit are electrically connected via a spring piece provided on the shield member.
The premise is that the terminal unit is configured as described below. FIG. 3 shows an example of the terminal unit. In FIG. 3 (A), reference numeral 9 denotes an inner conductor terminal crimped on the inner conductor at the center of the coaxial line, and the coaxial line to which the inner conductor terminal is attached is inserted into the outer conductor terminal 10. When the outer sheath 6 and the outer conductor 7 are inserted and crimped with the claws (insulation barrel) 11 and (wire barrel) 12 of the outer conductor terminal, respectively, as shown in FIG.
The terminal unit shown in (B) is completed.

As shown in FIG. 2, the terminal unit 1 and the shield member 13 are connected to the outer conductor terminals 10 of the terminal unit 1.
Are electrically connected by being sandwiched between spring pieces 2 extending from the shield member 13. Then, the shield member 13 and the housing 3 together with the conductive case 5
If the outer conductor 7 of the coaxial cable is fixed with the metal screw 4, the outer conductor 7 is electrically connected to the conductive case 5 through the outer conductor terminal 10 and the shield member 13 of the terminal unit 1, so that the outer conductor can be grounded.

The state of conduction between the outer conductor terminal 10 of the terminal unit 1 and the spring piece 2 of the shield member 13 depends on the force with which the spring piece 2 of the shield member 13 tightens the outer conductor terminal 10 of the terminal unit 1. If the fastening force is weak, conduction becomes unstable.

In the present invention, the terminal unit 1 is inserted into the housing 3 without the shield member 13, and
After that, since the shield member 13 is set, the tightening force can be increased without worrying about the workability when the terminal unit 1 is inserted into the housing 3, and a stable ground can be easily taken. it can. As before,
When the shield member is set in the housing in advance, and the coaxial line with the terminal unit is inserted into the housing, this does not occur, and if the spring pressure is increased, the terminal unit is inserted. In an extreme case, if the coaxial cable is forcibly inserted, a trouble such as buckling of the coaxial cable occurs.

FIGS. 6 and 8 are developed views of other examples of the shield member, and FIGS. 7 and 9 schematically show a situation where each shield member is folded and set in a housing. In these examples, the coaxial cable or the shielded cable is set in the connector housing, and then the shield member is attached. Of course, in the case of an electric wire that does not require a shield, the connector housing can be used without attaching the shield member. Reference numeral 2 denotes a spring piece, through which the shield member and the terminal unit are electrically connected. By devising the structure of the spring piece and the mounting direction, the connector can be shortened in the length direction.

FIGS. 10 and 11 show examples of connectors of the type in which the back of the housing 3 is opened and closed up and down. FIG.
FIG. 11 schematically shows a state in which the back of the housing 3 is opened upward, and the shield member 13 is mounted on the upper side of the housing using the mounting holes 15 for the housing.
After the terminal unit 1 is set at a predetermined position, the shield member 13 is lowered together with the housing opened upward, and the shield member and the terminal unit are electrically connected via the spring piece 2. ing. Note that 14
Indicates a screw hole when the shield member is screwed to the conductive case together with the connector housing. Reference numeral 16 in FIG. 10 indicates a locking structure, which functions to prevent the terminal unit from coming off when the connector assembly is completed.

[0014]

As described in the embodiment, according to the method of assembling the connector assembly of the present invention, the ground of the outer conductor of the coaxial cable or the shielded cable can be obtained without sacrificing the workability of assembling the connector assembly. It can be taken reliably and the shielding characteristics are stable. Further, the shielded connector housing can be used without attaching the shield member to the connector housing, and the shielded connector housing can be used for both applications requiring a shield and applications not requiring a shield. In addition, by devising the structure of the spring piece of the shield member and the mounting direction, the connector can be shortened in the length direction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a connector assembly assembled using the method of the present invention.

FIG. 2 is a cross-sectional view showing an example of a connector assembly assembled using the method of the present invention.

FIG. 3 is a perspective view showing the structure of a terminal unit.

FIG. 4 is a development view of a shield member.

FIG. 5 is a perspective view showing a method of attaching a shield member.

FIG. 6 is a development view of a shield member.

FIG. 7 is a perspective view showing a method of attaching a shield member.

FIG. 8 is a development view of a shield member.

FIG. 9 is a perspective view showing a method of attaching a shield member.

FIG. 10 is a perspective view showing a state where a shield member is attached to a connector housing that opens and closes vertically.

FIG. 11 is a perspective view showing a connector assembly using a connector housing that opens and closes up and down.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Terminal unit 2 Spring piece 3 Connector housing 4 Screw 5 Conductive case 6 Coaxial wire outer coating 7 Coaxial wire outer conductor 8 Coaxial wire insulating layer 9 Inner conductor terminal 10 Outer conductor terminal 11 Outer conductor terminal nail (insulation) 12 Barrel) 12 Outer conductor terminal claw (wire barrel) 13 Shield member 14 Screw hole for fixing the shield member to the conductive case 15 Hole for fixing the shield member to the housing 16 Locking structure

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Nobuaki Kojima 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 5E021 FA03 FA08 FB11 FB14 FC21 FC29 LA15 LA21

Claims (3)

[Claims] 1. A shield member is prepared as a member separate from a connector housing, and an electric wire with an external conductor having a terminal unit at a tip is set at a predetermined position of the connector housing. A method of assembling a connector assembly, wherein a shield member and a terminal unit are electrically joined via a provided spring piece. 2. An opening / closing portion of a connector housing having a structure in which an electric wire with an external conductor having a terminal unit at a tip is set at a predetermined position in a connector housing and then opened / closed in a direction different from a direction in which the electric wire is inserted / extracted. A method for assembling a connector assembly, comprising: pressing a shield member attached to one side to a terminal unit via a spring piece provided on the shield member to electrically connect the shield member and the terminal unit. 3. The method for assembling a connector assembly according to claim 2, wherein a shield member having a locking structure for the terminal unit is used as the shield member.