CN2340098Y - Safety socket and plug thereof - Google Patents
Safety socket and plug thereof Download PDFInfo
- Publication number
- CN2340098Y CN2340098Y CN98208153U CN98208153U CN2340098Y CN 2340098 Y CN2340098 Y CN 2340098Y CN 98208153 U CN98208153 U CN 98208153U CN 98208153 U CN98208153 U CN 98208153U CN 2340098 Y CN2340098 Y CN 2340098Y
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- live wire
- safety
- plug
- utility
- 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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Abstract
The utility model relates to a safety socket and plug thereof. Two groups of metal plates are arranged in a live conductor jack of the safety socket; one group of the metal plate is directly connected with a zero (ground) line, and the other group of the metal plate is connected with the live conductor through a safety tube (fuse). The base pin of the live conductor of the safety plug is provided with a section insulating sleeve. Only when the plug of the utility model is matched with the socket of the utility model, the power utilization safety can be ensured, as well as the normal use. The safety socket of the utility model can be used when the plug of the utility model is used in the electrical appliance at home or in the office.
Description
The plug that the utility model relates to a kind of safety socket and matches and use with it.
At present, known common socket for children and do not understand the people of safety utilization of electric power, if out of curiosity or accidentally and hand-held conductor is inserted in the firewire jack of socket, then can cause electric shock accidents, influences personal safety.
The purpose of this utility model provides a kind of safety socket and plug thereof, and when making it in the firewire jack of conductor insertion socket, the conductor part that exposes outside socket is not charged, thereby guarantees the safety of electricity consumption.
The purpose of this utility model is achieved in that
In a kind of safety socket of mainly forming by jack housing, jack and sheet metal, two groups of sheet metals are arranged in the firewire jack, wherein one group of sheet metal directly links to each other with zero line joint or earth connection point, and two sheet metals in this group sheet metal all have elasticity, and their interlude contacts with each other.Be connected in series a protective tube or fuse between another group sheet metal and live wire joint.
The safety plug that matches and use with the utility model safety socket has one section insulating case on its live wire pin.After the length of insulating case and position should make safety plug insert in the safety socket, the sheet metal connection of guaranteeing live wire pin energy and be connected in series with protective tube or fuse, and with and the sheet metal that links to each other of ground wire or zero line between insulate; The length of insulating case should guarantee to insert in the process of firewire jack at the live wire pin simultaneously, can not connect simultaneously with two groups of sheet metals all the time.
Owing to adopt such scheme, in the time of when be inserted into the utility model safety socket firewire jack with conductor in, at first with zero () sheet metal that links to each other of line contacts, and guaranteed that the part that electric conductor exposes outside socket can be not charged.When conductor continues to insert, contact with another group sheet metal, thereby two groups of sheet metals are connected, also make simultaneously live wire and zero () short-circuit between conductors, make protective tube (silk) fusing that is serially connected in the live wire circuit, thereby cut off the live wire circuit, guaranteed the safety of electricity consumption.And when using the plug that is used with the utility model safety socket to be inserted in the safety socket, owing on its live wire pin one section insulating case is arranged, make and the sheet metal of ground (zero) line connection and live wire pin between insulate, and connect with the sheet metal and the live wire pin of protective tube or fuse serial connection, so guaranteed live wire and zero () can not produce short circuit between the line, so the utility model safety socket and safety plug can be used.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 be the utility model safety socket firewire jack and the utility model safety plug live wire pin structural representation and electrical schematic diagram
Among the figure, 1,2. live wire pin 4. jack housing 5. insulating case RD. protective tube (silk) H. live wire contact L. zero line contact D. ground wire contact K. firewire jacks on sheet metal 3. plugs
In the firewire jack and live wire pin configuration schematic diagram and electrical schematic diagram of the embodiment of the utility model safety socket shown in Figure 1 and plug thereof, in the shell 4 of safety socket, with zero () sheet metal 1 that links to each other of line contact L (D) is a pair of elastic sheet metal in the firewire jack, their interlude contacts with each other.If having some gaps between them still can use.Between live wire contact H and sheet metal 2, be connected in series a protective tube (silk) RD.One section insulating case 5 is arranged on the live wire pin 3 of safety plug.Being designed to of the length of insulating case 5 and position in the present embodiment:
If the length of insulating case 5 is L, the bottom of insulating case 5 is L1 to the distance of the bottom of live wire pin 3, and the center of the contact portion of two sheet metals 1 is L2 to the distance of sheet metal 2 concave points, and the concave point of sheet metal 2 is L3 to the distance of sheet metal 2 bottoms,
Then should make L+L1＞L2+L3
Make L3＜L1＜L2 simultaneously
So just can guarantee after live wire pin 3 is inserted into firewire jack K, insulation between live wire pin 3 and the sheet metal 1, and and conducting between the sheet metal 2; And guarantee to be inserted in the firewire jack K process, can not make live wire pin 3 and sheet metal 1 and sheet metal 2 conductings simultaneously all the time at live wire pin 3.
The course of work of the utility model safety socket and plug thereof is as follows;
When the live wire pin 3 of safety plug is inserted in the safety socket from the jack K of safety socket, live wire pin 3 bottoms do not have the part of insulating case at first to contact with sheet metal 1 and since sheet metal 1 directly with zero () line contacts, so do not have in the live wire pin 3.Live wire pin 3 continues to insert, be inserted into till the position always, at this moment, there is not the part of insulating case only to contact on the live wire pin 3 with sheet metal 2, and the insulating case 5 on the live wire pin 3 contacts with sheet metal 1, makes to keep insulation between sheet metal 1 and the live wire pin 3, because sheet metal 2 links to each other with live wire, so electricity has just been arranged on the live wire pin 3, this moment, safety plug just can normally use.
But, when hand-held conductor directly is inserted among the firewire jack K of safety socket, since conductor at first with zero () sheet metal 1 that links to each other of line contact, guaranteed that the part of exposing outside safety socket firewire jack K all the time can be not charged, thereby guaranteed safety.When hand-held conductor continues to insert, when conductor contacts with sheet metal 2, because conductor is communicated with sheet metal 2 and sheet metal 1, make live wire and zero () short circuit between the line, thereby make protective tube (silk) fusing, cut off the power supply on the sheet metal 2, made sheet metal 2 not charged, so more guaranteed the safety of electricity consumption.
In family and the office's electrical appliance equipment,, just can be used now with the utility model safety socket as long as its plug is replaced by the utility model plug.
Claims (3)
1. safety socket, mainly form by jack housing (4), jack and sheet metal (1), (2), it is characterized in that: sheet metal (1), (2) are arranged among the firewire jack K, wherein sheet metal (1) directly links to each other with zero line joint L or earth connection point D, two sheet metals (1) all have elasticity, and their interlude contacts with each other.
2. safety socket according to claim 1 is characterized in that: be connected in series a protective tube or fuse RD between live wire joint H and sheet metal (2).
One kind with the corresponding safety plug of the described safety socket of claim 1; it is characterized in that: one section insulating case (5) is arranged on live wire pin (3); after the length of insulating case (5) and position should make safety plug be inserted in the safety socket; guarantee live wire pin (3) and sheet metal (2) connection; and and insulation between the sheet metal (1); and guarantee to be inserted in the process of firewire jack K, live wire pin (3) and sheet metal (1) and sheet metal (2) are connected simultaneously at live wire pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98208153U CN2340098Y (en) | 1998-09-17 | 1998-09-17 | Safety socket and plug thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98208153U CN2340098Y (en) | 1998-09-17 | 1998-09-17 | Safety socket and plug thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2340098Y true CN2340098Y (en) | 1999-09-22 |
Family
ID=33963926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98208153U Expired - Fee Related CN2340098Y (en) | 1998-09-17 | 1998-09-17 | Safety socket and plug thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2340098Y (en) |
-
1998
- 1998-09-17 CN CN98208153U patent/CN2340098Y/en not_active Expired - Fee Related
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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 |