JPH046893U

JPH046893U -

Info

Publication number: JPH046893U
Application number: JP4546690U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-22

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す電源供給回
路の回路図、第２図は、ＤＣプラグの斜視図、第
３図は、上記第１図のＤＣジヤツクに上記第２図
に示すＤＣプラグを挿入した状態の電源供給回路
の回路図、第４図は、本実施例における内部電源
か外部電源かを識別する検出回路の要部回路図、
第５，７図は、従来の電源供給回路の回路図、第
６図は、上記第５図に用いられるＤＣプラグの斜
視図である。１，５１……ＤＣジヤツク（受電用接続装置）
、２，６１……ＤＣプラグ（給電用接続装置）、
３，５２……被給電装置、４……内蔵バツテリ（
内部電源）、１１……第１導体部、１２……第２
導体部、１３……第３導体部、１４……第４導体
部、２１……外側導体部、２２……内側導体部、
３１……正極側給電導体、３２……グランド側給
電導体、４１……第１回路部、４２……第２回路
部、４３……第３回路部。 Fig. 1 is a circuit diagram of a power supply circuit showing an embodiment of the present invention, Fig. 2 is a perspective view of a DC plug, and Fig. 3 shows the DC jack shown in Fig. 1 above as shown in Fig. 2 above. FIG. 4 is a circuit diagram of the power supply circuit with the DC plug inserted, and FIG.
5 and 7 are circuit diagrams of conventional power supply circuits, and FIG. 6 is a perspective view of the DC plug used in FIG. 5 above. 1,51...DC jack (power receiving connection device)
, 2, 61...DC plug (power supply connection device),
3, 52...Powered device, 4...Built-in battery (
internal power supply), 11...first conductor section, 12...second
Conductor part, 13...Third conductor part, 14...Fourth conductor part, 21...Outer conductor part, 22...Inner conductor part,
31...Positive side power supply conductor, 32...Ground side power supply conductor, 41...First circuit section, 42...Second circuit section, 43...Third circuit section.

Claims

[Scope of claim for utility model registration] An outer conductor portion in which an electrical contact portion is exposed to the outside,
The outer conductor portion is insulated from the inner conductor portion, and the inner conductor portion is provided so that the electrical contact portion is not exposed to the outside.
A first conductor part that electrically contacts the outer conductor part when the power supply connecting device is connected, and a second conductor part that electrically contacts the inner conductor part when the power supply connecting device is connected. and a third conductor portion configured to be insulated from the outer conductor portion of the device when the power feeding connection device is connected, and a third conductor portion configured to be insulated from the outer conductor portion of the device when the power feeding connection device is connected. a fourth conductor part that maintains electrical contact and breaks electrical contact with the third conductor part when the device is connected; A first circuit that directly connects the ground-side power supply conductor of the power-supplied device and the negative electrode side of the internal power source of the power-supplied device, and is connected to the first conductor portion of the power-receiving connection device. a second circuit section that connects the second conductor section of the power receiving connection device and the positive power supply conductor of the power supplied device and is also connected to the fourth conductor section; A power supply circuit comprising: a third circuit section that connects the three conductor sections and the positive electrode side of the internal power source.