CN201444505U - a safety socket - Google Patents

Abstract

The utility model provides a safety socket is mainly equipped with a slip insulator foot in a shell, slip insulator foot face is equipped with a pair of contact conducting strip, and is set up in the internal conducting strip of one of them jack and extends to the shell bottom and form a fold piece. When the plug terminal pair is correctly inserted, the sliding insulating base is pressed down to make the contact conducting strip below the sliding insulating base and the folded piece in conductive contact, so that the clamp body above the conductive clamping piece is in contact with the inserted plug terminal to provide power for the electronic product. And when the plug is inserted incorrectly or metal foreign matters are inserted, the plug cannot conduct electricity.

Description

a safety socket

technical field

The utility model relates to a safety socket, in particular to a safety socket which can provide power only when a pair of plug terminals is correctly inserted.

Background technique

The socket is inserted into the plug terminal to obtain power. A traditional socket is provided with a pair of jacks on the shell, and a conductive clip is fixed inside the pair of jacks. The conductive clip is connected with the electric wire with power supply, and can clamp the inserted terminal, so that the plug can obtain power supply.

In the existing technology, in order to prevent the risk of electric shock caused by the insertion of metal foreign objects into the socket, a pushable cover plate is provided in the socket to seal the socket; when not in use, the cover plate is kept in a closed position to prevent Prevent foreign matter from entering.

In this prior art, since the conductive clip maintains power, if a slender or ㄩ-shaped metal foreign object penetrates into the socket and contacts the conductive clip, there may still be a risk of electric shock, which needs to be improved.

Contents of the invention

The main purpose of the utility model is to provide a safety socket. The socket will provide power to the connected electronic product only when the plug terminal pair is correctly inserted, but when the plug is inserted incorrectly or a metal foreign object is inserted, It will not conduct electricity to avoid the risk of electric shock.

In order to achieve the above purpose, the utility model provides a safety socket, which includes:

A shell, at least having a pair of sockets for insertion of a pair of plug terminals, and a spring socket extending from the bottom relative to the midpoint of the pair of sockets, the spring socket accommodates a lower part of the spring;

a power cord for obtaining power and extending into the housing;

At least one pair of conductive clips is arranged in the housing opposite to the pair of jacks, and the clip body of each conductive clip is arranged in one of the pair of jacks. The at least one the conductive clip has a flap extending to the bottom of the housing;

At least one sliding insulating seat, forming a cylinder in the middle of a horizontal plate; the bottom surface of the horizontal plate is provided with a pair of contact conductive sheets opposite to the folded pieces of the pair of conductive clips; the inner diameter of the cylinder is larger than the spring cylinder seat outer diameter, and the cylinder accommodates the upper part of the spring, so that the pair of contacting conductive sheets remains separated from the folded sheet in normal state and does not contact; and

At least one pair of power contacts are separately arranged in the housing and electrically connected to the electric wires, and are respectively conductively connected to the pair of contact conductive pieces on the bottom surface of the horizontal plate of the sliding insulating seat through a flexible guide piece;

When the pair of terminals of a plug is inserted into the socket of the shell, the sliding insulating seat will be pressed down, so that the pair of contact conductive pieces will be in conductive contact with the flaps of the pair of conductive clips, so that the plug can obtain power supply. The main structure of the utility model is that a sliding insulating seat is provided in the shell of the safety socket, and a pair of contacting conductive pieces are arranged on the bottom surface of the sliding insulating seat, and a conductive clip set in a jack extends to the bottom of the shell. Form a flap. When the plug terminal pair is inserted correctly, the sliding insulating seat will be pressed down, so that the contact conductive piece below it will make conductive contact with the folded piece, so that the clip body above the conductive clip piece will contact the inserted plug terminal to provide power to the electronic product use.

Compared with the prior art, the safety socket described in the utility model can provide power to the connected electronic product only when the plug terminal pair is inserted correctly, but when the plug is inserted incorrectly or the metal When a foreign object is inserted, it will not conduct electricity to avoid the risk of electric shock.

The structural features and usage effects of the utility model will be described in detail below according to the embodiments shown in the accompanying drawings.

Description of drawings

Fig. 1 represents the exterior view of a kind of embodiment of the utility model;

Fig. 2 represents the sectional view along A A of the embodiment shown in Fig. 1;

Figure 3 is the sectional view of Figure 2, but the plug is inserted correctly;

Fig. 4 is the sectional view of Fig. 2, but the plug is not inserted correctly;

Fig. 5 represents the exploded view of the embodiment of the utility model;

Fig. 6 represents the cross-sectional view of the utility model being inserted by a slender metal foreign body;

Fig. 7 represents the sectional view of the utility model being inserted differently by the ㄩ shape metal.

Explanation of reference signs: safety socket-1; shell-2; upper shell-21; lower shell-22; jack-23; bottom-24; 3; horizontal plate-31; barrel-32; bump-321; long hole-33; contact conductive sheet-4; first hollow part-41; first contact point-5; power contact-6; conductive clip 7; clamp body-71; flap-72; second hollow part-73; concave hole-74; spring-8; plug-9; terminal-91; Contact part-12; wire-13; plug-131.

Detailed ways

Please refer to Fig. 1 and Fig. 2. The utility model provides a safety socket for inserting terminal pairs of plugs of electronic products to obtain power. The safety socket 1 is mainly composed of a shell 2 , a wire 13 , at least one pair of conductive clips 7 , at least one sliding insulating seat 3 and at least one pair of power contacts 6 .

The shell 2 is composed of an upper shell 21 and a lower shell 22, on which there are at least 23 pairs of jacks that can be inserted into a plug 9 terminals 91 pairs, and the number of pairs of jacks 23 can be designed according to needs, such as Fig. 1 Two pairs are shown in the figure; the housing 2 extends a spring holder 25 from the midpoint of the bottom 24 relative to the jack 23 pairs, and the spring holder 25 accommodates the lower part of a spring 8; the spring holder 25 can be A guide post 26 supported in the middle of the spring 8 is further provided. The end of the wire 13 is connected to a plug 131 for obtaining power, and extends into the casing 2 .

The conductive clips 7 are arranged in pairs, and the logarithm of the conductive clips 7 is set according to the logarithm of the jacks 23 pairs, and is arranged in the shell 2 relative to the jacks 23 pairs; each conductive clip 7 The clip body 71 is disposed in one of the insertion holes 23 , and has a flap 72 extending to the bottom 24 of the housing 2 , and at least one side of the clip body 71 has a concave hole 74 .

The number of sliding insulating seats 3 is set according to the logarithm of the jack 23 pairs, and has a horizontal plate 31, a cylinder 32 is formed upward in the middle, and a convex point 321 is provided on at least one side of the cylinder 32, so that A concave hole 74 is provided on one side of the bump 321 and the clip body 71 to be opposite; the bottom surface of the horizontal plate 31 is provided with a pair of contact conductive sheets 4 opposite to the folded sheet 72 of the pair of conductive clips 7; The inner diameter of the body 32 is larger than the outer diameter of the spring cylinder seat 25, and the cylinder body 32 accommodates the upper part of the spring 8, so that in a normal state, the pair of contacting conductive pieces 4 remain separated from the folded pieces 72 without contact.

The power contacts 6 are arranged in pairs, and the number of pairs is set according to the number of pairs of jacks 23. They are separately arranged in the casing 2 and electrically connected to the electric wires 13, and are respectively electrically connected to the sliding insulation by a flexible guide piece 10. The pair of bottom surfaces of the horizontal plate 31 of the seat 3 is in contact with the conductive sheet 4 .

In addition, a pair of first contact points 5 are extended from the pair of contact conductive pieces 4, and a pair of second contact points 11 are extended from the folded sheet 72. When the sliding insulating seat 3 is pressed down, the first contact points 5 is in contact with the second contact point 11, so that the contact conductive sheet 4 is in conductive contact with the folding sheet 72. A pair of contact portions 12 are provided on the horizontal plate 31 of the sliding insulating base 3 , and the contact portions 12 are respectively in contact with the inserted plug terminals 91 .

Please refer to Fig. 3, when the utility model is in use, the terminal 91 of the plug 9 is inserted in the socket 23 of the shell 2, until it contacts with the contact portion 12 of the sliding insulating seat, and the sliding insulating seat 3 will be pressed down (such as shown by the arrow in the figure), so that the convex point 321 on one side of the cylinder body 32 is combined with the concave hole 74 on one side of the clip body 71, and the contact conductive piece 4 below is in conductive contact with the folded piece 72 of the conductive clip piece 7, Allows the plug to draw power to the connected electronics.

Please refer to Fig. 4, when the terminal 91 of the plug 9 of the utility model is not correctly inserted, for example, when only one terminal 91 is inserted into the jack 23 as shown in the figure, because the force on the horizontal plate 31 of the sliding insulating seat 3 is not uniform. Tilt (the direction shown by the arrow in the figure), so that the cylinder 32 will be stuck with the spring cylinder seat 25 and cannot be pressed down, then the contact conductive sheet 4 will not be in conductive contact with the folded sheet 72, and the conductive clip 7 will not generate current , no risk of electric shock.

Furthermore, referring to Fig. 5, in terms of structural design of the utility model, a long hole 33 can be formed on the horizontal plate 31 at the insertion position of the plug terminal 91 next to the contact portion 12, and the formation area of the pair of contact conductive sheets 4 is larger than the above-mentioned The area of the long hole 33 is the first hollow portion 41 , and the folded piece 72 forms a second hollow portion 73 with an area larger than the area of the long hole 33 . Such a design will make the metal foreign matter pass through the elongated hole 33, the first hollow portion 41 and the second hollow portion 73 when inserted into the jack 23, without causing the sliding insulating seat 3 to move down, nor The contact conductive sheet 4 is in contact, so the metal foreign object will not conduct electricity after being inserted, so as to achieve safety effect. This is the most protective effect especially when children insert metal foreign objects.

FIG. 6 illustrates the situation when the elongated metal foreign object 92 is inserted. After the metal foreign object 92 is inserted into the insertion hole 23 , it may contact or not contact with the clip body 71 above the conductive clip 7 . Since the metal foreign matter 92 will pass through the slot 33, the first hollow portion 41 and the second hollow portion 73, the sliding insulating seat 3 will not be pressed down, and the contact conductive sheet 4 will not be in conductive contact with the folded sheet 72. There is no current on the sheet 7, even if the metal foreign object 92 is in contact with the conductive clip 7, there is no risk of electric shock.

In addition, in FIG. 7, the situation when the U-shaped metal foreign object 93 is inserted is illustrated. After the ㄩ-shaped metal foreign object 93 is inserted into the two sockets 23, it will be in contact with or not in contact with the clip body 71 above the two conductive clips 7. Because the U-shaped metal foreign matter 93 can pass through the long hole 33, the first hollow portion 41 and the second hollow portion 73, the sliding insulating seat 3 will not be pressed down, and the contact conductive sheet 4 will not be in conductive contact with the folding sheet 72. There is no electric current on the conductive clip 7, even if the U-shaped metal foreign object 93 is in contact with it, there is no risk of electric shock.

To sum up, the innovative structure of the safety socket provided by the utility model makes it possible to obtain power supply for electronic products only after the plug terminal pair is correctly inserted into the jack, but when it is inserted abnormally or other metal foreign objects are inserted, it will not work. There will be no current passing through, and naturally there will be no danger of electric shock accidents. The utility model that fully meets the patent requirements must be applied for according to the law.

Claims (8)

1. a safety socket is characterized in that, comprising:

One shell, it is right to the jack that inserts to have at least for a plug terminal, and the point midway right with respect to described jack extends a spring cylinder base from the bottom, accommodates a spring lower portion in the described spring cylinder base;

One electric wire supplies to obtain power supply, and extends in the described shell;

At least one pair of conductive clip, by described relatively jack to and be arranged in the described shell, the clamp of each conductive clip is set in the jack of described jack centering, described at least one pair of conductive clip has the tabs that extends to described outer casing bottom;

At least one slip insulating base upwards forms a cylindrical shell in the middle of a level board; The described relatively tabs to conductive clip in described level board bottom surface is provided with a pair of contact conducting strip; Described cylinder internal diameter is greater than described spring cylinder base external diameter, and described cylindrical shell is accommodated the position, top of described spring, makes described when normality the contact conducting strip to be kept not contacting with described tabs is separated; And

At least one pair of power supply contact, separated being arranged in the described shell is connected with described wiring conductive, and is connected to the described to the contact conducting strip of described slip insulating base level board bottom surface conductively with a soft guide card respectively;

Described slip insulating base, can be pressed down when described shell jack inserts at the terminal of a plug, makes the described contact conducting strip is conducted electricity with described tabs to conductive clip contact, and makes described plug obtain power supply.

2. safety socket as claimed in claim 1, it is characterized in that, described to the contact conducting strip extend a pair of first make contact, and described tabs is extended a pair of second contact point, described first make contact contacts with described second contact point when described slip insulating base is pressed down, and described contact conducting strip is contacted with described tabs conduction.

3. safety socket as claimed in claim 2 is characterized in that, is provided with a pair of contact site above the level board of described slip insulating base, and the plug terminal of described contact site and insertion is to contacting respectively.

4. safety socket as claimed in claim 3, it is characterized in that, described level board forms a slotted hole described to the other plug terminal insertion position relatively of contact site, and described to first hollow bulb of contact conducting strip formation area greater than described slotted hole area, and described to second hollow bulb of tabs formation area greater than described slotted hole area.

5. safety socket as claimed in claim 1 is characterized in that, described shell is made of a upper shell and a lower house.

6. safety socket as claimed in claim 1 is characterized in that, is provided with one in the spring cylinder base of described shell and is supported in the middle guide pillar of described spring.

7. safety socket as claimed in claim 1 is characterized in that, at least one side of described spring cylinder base is provided with a salient point

8. safety socket as claimed in claim 1 is characterized in that, at least one side of described clamp is provided with a shrinkage pool.

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