CN2561127Y - Multifunctional power source plug - Google Patents
Multifunctional power source plug Download PDFInfo
- Publication number
- CN2561127Y CN2561127Y CN 02240413 CN02240413U CN2561127Y CN 2561127 Y CN2561127 Y CN 2561127Y CN 02240413 CN02240413 CN 02240413 CN 02240413 U CN02240413 U CN 02240413U CN 2561127 Y CN2561127 Y CN 2561127Y
- Authority
- CN
- China
- Prior art keywords
- power
- testing circuit
- live wire
- zero line
- wire end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a multi-purpose power plug. The utility model comprises a power pin, a power connecting line and a power plug casing body, the power pin is arranged in the power plug casing body and is connected with a power through the power connecting line, a detection circuit is arranged between the power pin and the power connecting line; the detection circuit comprises a power detection circuit, a grounding detection circuit, a zero line detection circuit, a circuit for detecting whether a zero line and a live wire are inversely connected or not, and a circuit for detecting whether the zero line and the live wire are poor contact poorly. The utility model can lead a user not to be required to depend on other detection tool in the operation process, the circumstances that whether the operating state and the wiring of the power plug are correct or not can be judged visually, etc., including that whether the outgoing line of the plug is powered on or not, whether the plug is grounded or not, and whether the zero line and the live wire is correctly connected or not, etc. The utility model has the advantages that the structure is simple, the cost is inexpensive, and the installation and the operation are convenient.
Description
Technical field
The utility model relates to electronic circuit technology, relates in particular to a kind of multifunctional power plug.
Background technology
At present, the various attaching plug great majority of selling on the market are connected the function of drawing power supply in the socket for only playing, and can't intuitive judgment for the situation users such as operating state of attaching plug, also need to realize if need know situations such as its operating state, wiring be whether correct, for user's use has brought great inconvenience by other testing tool is auxiliary.
The utility model content
The purpose of this utility model provides a kind of multifunctional power plug, and the user in use be need not by other testing tool, just can judge situations such as whether correct the operating state, wiring of attaching plug comparatively intuitively.
The purpose of this utility model is achieved in that a kind of multifunctional power plug, its structure is made up of power pin, electric power connection line road and attaching plug housing, in power pin installation and the attaching plug housing, and link to each other with power supply by the electric power connection line road, be provided with testing circuit between described power pin and electric power connection line road.
Described testing circuit is connected with status indicator lamp, and status indicator lamp is arranged on the attaching plug housing outer surface, and testing circuit comprises: whether power sense circuit, grounded inspection circuit, zero line testing circuit, zero line and live wire connect reverse-examination slowdown monitoring circuit and loose contact testing circuit whether.
Described testing circuit is for being respectively arranged with light-emitting diode reaching between ground terminal and live wire end between ground terminal and zero line side, between zero line side and live wire end.
The concrete structure of described testing circuit is: ground terminal is drawn the two-wire end and is linked to each other with the positive pole of light-emitting diode respectively, the negative pole of one of them light-emitting diode is connected with resistance, and the other end of resistance is drawn the two-wire end and linked to each other with the live wire end with zero line side by diode respectively; The negative pole of another light-emitting diode is by being connected with the live wire end with resistance series connection back with diode; Zero line side links to each other with the live wire end with resistance by light-emitting diode again.
Described testing circuit links to each other with power pin by contact spring.
By technique scheme as can be seen, the utility model has adopted the electrical prong structure that is provided with testing circuit in existing attaching plug, thereby make the user in use need not just can judge situations such as whether correct the operating state, wiring of attaching plug comparatively intuitively by other testing tool, comprising: whether the plug lead-out wire has electricity, plug, and whether ground connection and zero line correctly are connected etc. with live wire.The utility model also has advantages such as simple in structure, with low cost, easy to install.
Description of drawings
Fig. 1 is structural representation A of the present utility model;
Fig. 2 is structural representation B of the present utility model;
Fig. 3 is structural representation C of the present utility model;
Fig. 4 is a testing circuit schematic diagram of the present utility model.
Embodiment
Embodiment of the present utility model is described below in conjunction with the accompanying drawings:
As Fig. 1, Fig. 2, shown in Figure 3, the structure of multifunctional power plug is made up of power pin 1, electric power connection line road and attaching plug housing 3, in power pin 1 installation and the attaching plug housing 3, and link to each other with power supply by the electric power connection line road, between power pin 1 and electric power connection line road, be provided with testing circuit.
Described testing circuit links to each other with power pin 1 by contact spring 4, and power pin 1 is fixedly installed on the attaching plug housing 3 by screw 5, contact spring 4 be pressed on screw 5 on be that testing circuit is powered.
Be connected with status indicator lamp 2 in the described testing circuit, and status indicator lamp 2 is arranged on attaching plug housing 3 outer surfaces, is used for the various wiring situations and the work state information of plug are shown to the user, be convenient to the user and check.
Testing circuit in the utility model comprises: whether power sense circuit, grounded inspection circuit, zero line testing circuit, zero line and live wire connect reverse-examination slowdown monitoring circuit and loose contact testing circuit whether; Described testing circuit is for being respectively arranged with light-emitting diode reaching between ground terminal and live wire end between ground terminal and zero line side, between zero line side and live wire end, and light-emitting diode is the status indicator lamp 2 of testing circuit.
The concrete structure of described testing circuit is as shown in Figure 4: ground terminal is drawn the two-wire end and is linked to each other with the positive pole of light-emitting diode respectively, the negative pole of one of them light-emitting diode VD2 is connected with resistance R 2, and the other end of resistance R 2 is drawn the two-wire end and linked to each other with the live wire end with zero line side by diode D2, D1 respectively; The negative pole of another light-emitting diode VD3 is by being connected with the live wire end with resistance R 3 series connection backs with diode D3; Zero line side links to each other with the live wire end with resistance R 1 by light-emitting diode VD2 again.Like this, when the user uses attaching plug, just can be according to luminous or not luminous operating state and the wiring situation of judging attaching plug of light-emitting diode VD1, VD2, VD3 (being indicator light 2); Light-emitting diode VD1, VD2, VD3 are all luminous when attaching plug normally uses; To meet inverse time light-emitting diode VD1, VD2 luminous when zero line and live wire, and light-emitting diode VD3 is not luminous; Light-emitting diode VD1 is not luminous when connecting to neutral line not, and light-emitting diode VD2, VD3 are luminous; Light-emitting diode VD1 is luminous when unearthed line, and light-emitting diode VD2, VD3 are not luminous; Then three light-emitting diodes are all not luminous when not having electricity.People just can judge the operating state and the wiring situation of attaching plug comparatively easily thus, for people's use provides great convenience.
Claims (6)
1, a kind of multifunctional power plug, its structure is made up of power pin (1), electric power connection line road and attaching plug housing (3), in power pin (1) installation and the attaching plug housing (3), and link to each other with power supply by the electric power connection line road, it is characterized in that between described power pin (1) and electric power connection line road, being provided with testing circuit.
2, multifunctional power plug according to claim 1 it is characterized in that described testing circuit is connected with status indicator lamp (2), and status indicator lamp (2) is arranged on attaching plug housing (3) outer surface.
3, multifunctional power plug according to claim 1 is characterized in that described testing circuit comprises: whether power sense circuit, grounded inspection circuit, zero line testing circuit, zero line and live wire connect reverse-examination slowdown monitoring circuit and loose contact testing circuit whether.
4, multifunctional power plug according to claim 3 is characterized in that described testing circuit is for being respectively arranged with light-emitting diode reaching between ground terminal and live wire end between ground terminal and zero line side, between zero line side and live wire end.
5, multifunctional power plug according to claim 4, the concrete structure that it is characterized in that described testing circuit is: ground terminal is drawn the two-wire end and is linked to each other with the positive pole of light-emitting diode respectively, the negative pole of one of them light-emitting diode is connected with resistance, and the other end of resistance is drawn the two-wire end and linked to each other with the live wire end with zero line side by diode respectively; The negative pole of another light-emitting diode is by being connected with the live wire end with resistance series connection back with diode; Zero line side links to each other with the live wire end with resistance by light-emitting diode again.
6, multifunctional power plug according to claim 1 is characterized in that described testing circuit links to each other with power pin (1) by contact spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240413 CN2561127Y (en) | 2002-07-17 | 2002-07-17 | Multifunctional power source plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240413 CN2561127Y (en) | 2002-07-17 | 2002-07-17 | Multifunctional power source plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561127Y true CN2561127Y (en) | 2003-07-16 |
Family
ID=33713540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240413 Expired - Fee Related CN2561127Y (en) | 2002-07-17 | 2002-07-17 | Multifunctional power source plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561127Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015169089A1 (en) * | 2014-05-04 | 2015-11-12 | 京东方科技集团股份有限公司 | Plug, socket and display apparatus |
| CN109510029A (en) * | 2018-12-28 | 2019-03-22 | 宁波洛卡特汽车零部件有限公司 | The charge connector of fiery zero reverse phase alarm |
| CN110632364A (en) * | 2019-09-16 | 2019-12-31 | 优利德科技(中国)股份有限公司 | Non-contact voltage detection device, plug-in structure and method |
-
2002
- 2002-07-17 CN CN 02240413 patent/CN2561127Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015169089A1 (en) * | 2014-05-04 | 2015-11-12 | 京东方科技集团股份有限公司 | Plug, socket and display apparatus |
| CN109510029A (en) * | 2018-12-28 | 2019-03-22 | 宁波洛卡特汽车零部件有限公司 | The charge connector of fiery zero reverse phase alarm |
| CN110632364A (en) * | 2019-09-16 | 2019-12-31 | 优利德科技(中国)股份有限公司 | Non-contact voltage detection device, plug-in structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |