JP2002025709A - Power source connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily shield a connection terminal electrically. SOLUTION: A terminal assembly 1 is formed by insert-molding the flat blade shaped connection terminals in columnar support bodies 5. A shield member 2 comprises five cylindrical parts 6, receiving the support bodies 5 of the terminal assembly 1 and a plate-like part 7, integrally supporting these cylindrical parts 6. A housing 3 has cylindrical first and second coupling parts 11 and 12 in the front part and a flange 13 in the rear part. A front hole part 14 receiving entering of a counterpart connection terminal, intermediate hole parts 15, with individually arranged cylindrical parts 6 of the shield member 2, and rear hole parts 16 with individually pressed in support bodies 5 of the terminal assembly 1 are provided sequentially from the front in an interior of the housing 3. The circumferential rim of the plate like part 7 of the shield member 2 is embedded inside the flange 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be used for input / output terminals of, for example, an inverter unit through which a large current flows, and in which these input / output terminals are electrically shielded and electric noise influences outside. The present invention relates to a power supply connector for preventing power failure.

[0002]

2. Description of the Related Art For example, an inverter unit includes an input terminal, a relay, a capacitor, a printed circuit board, an output terminal, and the like. An AC current input to the input terminal is converted from an output terminal into a variable voltage or a variable frequency AC current. Output.

[0003]

However, in such an inverter unit, since a large current flows through the input terminal and the output terminal, current noise generated at the input terminal and the output terminal leaks out to the outside, and There is a problem of adversely affecting electrical equipment.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a power connector which can easily shield connection terminals.

[0005]

A power connector according to the present invention for achieving the above object has a terminal assembly in which connection terminals are insert-molded in a support made of an electrically insulating synthetic resin material, and the terminal assembly. A shield member made of a conductive metal having a tubular portion for fitting the support member and electrically shielding the connection terminal; and a housing formed by insert-molding the shield member into an electrically insulating synthetic resin material. And characterized in that:

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiment. FIG. 1 is a front view of the embodiment, and FIG.
3 is a rear view, FIG. 3 is a partial horizontal cross-sectional view, and FIG.
FIG. 4 shows a cross-sectional view taken along the line. The shield connector for large current according to this embodiment can be used for, for example, an inverter unit to be described later that outputs an input AC current as a variable voltage or a variable frequency AC current, and is connected to a mating connection terminal (not shown). , A shield member 2 surrounding the terminal assembly 1 and electrically shielding the terminal assembly 1, and a housing 3 holding the shield member 2.

As shown in the perspective view of FIG. 5, the terminal assembly 1 includes a flat blade-shaped connection terminal 4 made of a conductive metal material.
A cylindrical support 5 made of an electrically insulating material such as a synthetic resin integrally supports the connection terminal 4. The connection terminal 4 is insert-molded on the support 5. A circular insertion hole 4a for fitting a separate conductive member is formed at the rear part of the connection terminal 4, and an annular mounting groove 5a is formed on the outer peripheral surface of the support 5.

The shield member 2 is made of a conductive metal having an electromagnetic shielding property. As shown in a partial perspective view of FIG. 6, for example, two or three sets into which the support 5 of the terminal assembly 1 is press-fitted. And five plate-shaped portions 7 supporting the rear ends of these cylindrical portions 6 in the same plane. The terminal assembly 1 as an input terminal is press-fitted into the two cylindrical portions 6 on the right side, and the terminal assembly 1 as an output terminal is press-fitted into the three cylindrical portions 6 on the left side.

The housing 3 is formed of a synthetic resin material having an electrical insulation property, and a front portion of the housing 3 is connected to a cylindrical first connecting portion 11 to which a mating housing (not shown) is connected and a second connecting portion. And a flange 13 is provided at a rear portion of the outer peripheral surface of the housing 3.

Inside the housing 3 including the first and second coupling portions 11 and 12, a front hole portion 14 for receiving entry of a mating connection terminal and a cylindrical portion 6 of the shield member 2 are individually arranged. The intermediate hole 15 and the rear hole 16 into which the support 5 of the terminal assembly 1 is individually press-fitted are sequentially formed from the front, and the periphery of the plate-shaped portion 7 of the shield member 2 is formed by a flange 13.
Buried inside.

The mating housing connected to the first coupling portion 11 houses, for example, a mating connection terminal connected to an AC power supply, and is connected to the mating housing connected to the second coupling portion 12. Accommodates a connection terminal on the other end connected to an electric device that requires a variable voltage or a variable frequency AC current converted by the inverter unit.

Such a power supply connector can be used for an inverter unit as shown in FIG. In FIG. 7, the illustration of the shield member 2 and the housing 3 is omitted. The inverter unit includes two terminal assemblies 1 'as input terminals, a printed circuit board 21, a relay 22, a capacitor 23, three terminal assemblies 1 "as output terminals, a unit housing (not shown), and the like. "1" is fixed by fitting the mounting groove 5a of the support 5 to the mounting member 25 provided on the printed circuit board 21, and the connection terminals 4 are connected to the relay 22 via the conductive member 25, respectively. The connection terminals 4 of the terminal assembly 1 ″ are electrically connected to the printed circuit board 21 via the conductive members 26.
Reference numeral 26 is accommodated in the unit housing to form an inverter unit.

When the mating housing is connected to the first and second connecting portions 11 and 12 of the housing 3 of such an inverter unit, a cylindrical shield member similarly provided on the mating housing is provided. The connection terminals are connected together while being fitted inside or outside the shield member 2. When a large current flows through the connection terminal 4, an electromagnetic field is generated around the connection terminal 4. However, the shield member 2 and the shield member of the mating housing shield the electromagnetic field to prevent current noise from reaching peripheral devices. I do.

As described above, in the power connector according to the embodiment, the support 4 of the terminal assembly 1, 1 ', 1 "is press-fitted into the cylindrical portion 6 of the shield member 2 which is insert-molded into the housing 3. The connection terminal 4 can be easily shielded electromagnetically.

In this embodiment, the cylindrical portion 6 formed by the shield member 2 is provided for each connection terminal 4. However, in this embodiment, one cylindrical portion is provided for two sets. One cylindrical portion may be formed for a set of three connection terminals 4. In addition, although the description has been given of the use of the power supply connector in the inverter unit, it goes without saying that the power supply connector can be applied to other electric devices.

[0016]

As described above, the power connector according to the present invention has a terminal assembly formed by insert-molding a connection terminal on a support made of an electrically insulating synthetic resin material, and fitting the support of the terminal assembly. A shield member made of a conductive metal having a cylindrical portion to electrically shield the connection terminals, and a housing formed by insert-molding the shield member into an electrically insulating synthetic resin material. By fitting the support portion to the cylindrical portion of the shield member, the connection terminal for large current can be easily shielded.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment.

FIG. 2 is a rear view.

FIG. 3 is a partial horizontal sectional view.

FIG. 4 is a sectional view taken along the line AA in FIG. 1;

FIG. 5 is a perspective view of a terminal assembly.

FIG. 6 is a partial perspective view of a shield member.

FIG. 7 is a perspective view showing a state where the terminal assembly is attached to the inverter unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 ', 1 "Terminal assembly 2 Shield member 3 Housing 4 Connection terminal 5 Support body 6 Cylindrical part 7 Plate part 11 First coupling part 12 Second coupling part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takezo Sugimura 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Inventor Tsugio Yashou 1-8 Kotake-cho, Nerima-ku, Tokyo No. 1 Ryosei Denso Co., Ltd. (72) Inventor Yukifumi Machida 8-1-1 Kotake-cho, Nerima-ku, Tokyo In-house Ryosei Denso Co., Ltd. No. 8-1 Ryosei Denso Co., Ltd. (72) Inventor Michiyasu Watanabe 1-8-1, Kotakecho, Nerima-ku, Tokyo F-term in Ryosei Denso Co., Ltd. 5E087 EE10 EE17 FF02 GG02 GG06 JJ09 QQ03 QQ06 RR03 RR25 5E321 AA01 GG05 GG09

Claims (3)

[Claims] 1. A terminal assembly formed by insert-molding a connection terminal on a support made of an electrically insulating synthetic resin material, and a cylindrical portion for fitting the support of the terminal assembly, the connection terminal having a cylindrical portion. A power supply connector comprising: a conductive metal shield member for electrically shielding; and a housing formed by insert-molding the shield member into an electrically insulating synthetic resin material. 2. The power connector according to claim 1, wherein the shield member is surrounded by the tubular body for each connection terminal. 3. The power connector according to claim 1, wherein the shield member is formed by holding a plurality of the cylindrical portions by plate portions.