CN216818696U - Socket with improved structure - Google Patents

Abstract

The utility model relates to the technical field of electric connection. The safe combined plug bush solves the problems that the existing safe combined plug bush has poor electric contact, more parts, troublesome manufacture and assembly and easy burning. The socket is including shell (1), be equipped with electrode jack (2) on shell (1), correspond the position and be equipped with in electrode jack (2) and connect and insert electrode (3), connect and be equipped with connection piece (4) or linking frame (23) on inserting electrode (3), be equipped with electrode clamping piece (5) and side contact (6) on connection piece (4) or linking frame (23), side contact (6) are in one side of electrode clamping piece (5), side contact (6) front or back are equipped with conducting strip (7), be equipped with the interval between side contact (6) and conducting strip (7) and form normally open contact, be equipped with insulating part (8) or insulating layer between side contact (6) or conducting strip (7) and electrode clamping piece (5). The normal state plug-in electrode is not electrified, the use is safe, the plug-in electrode has no contact resistance, and the plug-in electrode is not easy to generate heat when being electrified.

Description

Socket with improved structure

Technical Field

The utility model relates to the technical field of electric connection.

Background

A safety combination insert is disclosed in chinese patent, utility model No. 201820864498X. This safe combination plug bush, including plug bush A, plug bush B, plug bush A and plug bush B all are equipped with "U" type cavity, the orientation of "U" type cavity of plug bush A is the same with the orientation of "U" type cavity of plug bush B, plug bush A locates in the "U" type cavity of plug bush B. There is a problem in that the socket a and the socket B are independent from each other and are not tightly fixed to each other, so that poor electrical contact occurs between them.

A safety socket is disclosed in chinese patent, utility model No. 2015206096188. In the safety socket, a live wire plug-in holding assembly and a zero wire plug-in holding assembly for holding plug blades are respectively and electrically connected with a power supply through a live wire conducting strip and a zero wire conducting strip, contacts at two ends of the live wire conducting strip and the zero wire conducting strip are disconnected under the condition that the plug is not plugged in, and the two plug-in holding assemblies are not communicated with the power supply; and because two insert and hold the subassembly and set up respectively between live wire conducting strip and zero line conducting strip, only insert respectively when the inserted sheet of the plug of looks adaptation and hold the subassembly in two inserts, the one end of two inserted sheets just can promote the second end of live wire conducting strip or the two ends of zero line conducting strip respectively with the power electricity be connected, and this end of inserted sheet sets up rather than the second end of the live wire conducting strip that corresponds or the second end of zero line conducting strip is insulating, and simultaneously, the other end of inserted sheet is connected and circular telegram rather than the first end of the zero line conducting strip that corresponds or the first end of live wire conducting strip, can effectively the protection against electric shock. The live wire plug-in holding assembly and the zero wire plug-in holding assembly are two separated parts, the electric connection between the rotating sheet and the contact sheet is unreliable, the rotating sheet is not elastic, an elastic element is required to be arranged between the two rotating sheets to clamp the live wire plug-in holding assembly and the zero wire plug-in holding assembly, the parts are more, the manufacturing and the assembly are troublesome, the contact on the conduction is unreliable, and the live wire plug-in holding assembly and the zero wire plug-in holding assembly are easy to burn when the over-current is large.

Disclosure of Invention

The utility model aims to provide a socket which can realize switch control by using pins of a plug, has no electricity in a normal plugging electrode and is safe to use.

In order to achieve the purpose of the utility model, the first socket comprises a shell, wherein an electrode jack is arranged on the shell, a plug-in electrode is arranged in the corresponding position of the electrode jack on the shell, a connecting sheet or a connecting frame is arranged on the plug-in electrode, an electrode clamping sheet and a side contact sheet are arranged on the connecting sheet or the connecting frame, the side contact sheet is positioned at one side of the electrode clamping sheet, a conducting sheet is arranged on the front surface or the back surface of the side contact sheet, a gap is arranged between the side contact sheet and the conducting sheet and forms a normally open contact, and an insulating part or an insulating layer is arranged between the side contact sheet or the conducting sheet and the electrode clamping sheet.

An insulator or insulating layer may electrically isolate the electrode clip from the conductive sheet. When the plug is inserted, the insulating member or layer may block one side of the electrical pin, so that electrical contact between the electrical pin and the conductive sheet is not possible. And a normally open switch is formed between the side contact and the conducting strip, an electric pin of the plug is used as a key to touch the insulating part or the insulating layer, so that the side contact or the conducting strip is driven to be in contact with each other to open the switch, and the side contact or the conducting strip is reset to be disconnected, so that the aim of controlling the switch is fulfilled. In a normal state, the side contact and the electrode clamping piece are both arranged on the connecting sheet or the connecting frame, seamless connection is achieved between the side contact and the electrode clamping piece, contact resistance does not exist, and heating is not prone to occurring when the electric connector is powered on. And there is interval between conducting strip and the side contact, so, connect and insert the electrode and be in the independent state in the shell, do not contact with any electrified metalwork promptly, therefore uncharged under the normality, it is safe in utilization. Although a switch exists between the socket and the power supply, the switch is not an independent switch in the prior art, and only the contact and separation of the plug-in electrode and a part of the electrified conducting strip are utilized, so that the on-off control between the electrode clamping piece and the power supply is realized, and the assembly is simple.

Based on a general inventive concept, the second socket comprises a shell, wherein the shell is provided with electrode jacks, a socket electrode is arranged in the shell at positions corresponding to the electrode jacks, the socket electrode is provided with a connecting sheet or a connecting frame, the connecting sheet or the connecting frame is provided with electrode clamping sheets, the socket electrode is provided with side contact sheets, the side contact sheets are positioned at one sides of the corresponding electrode clamping sheets in the other electrode jack, the front or back of each side contact sheet is provided with an electrode sheet, a gap is arranged between each side contact sheet and the electrode sheet and a normally open contact is formed, and an insulating member or an insulating layer is arranged between each side contact sheet or the electrode sheet and the corresponding electrode clamping sheet.

The side contact and the electrode plate form a normally open switch, and the utility model conception of the first socket and the side contact and the electrode plate are that the electric pins of the plug are used as keys to carry out switch operation. When the plug is inserted into the socket, the electric pins touch the insulating part or the insulating layer to drive the side contact pieces or the electrode pieces to be in mutual contact, so that the switch is turned on. After the plug is pulled out, the disconnection is realized by resetting the side contact or the electrode plate, so that the aim of on-off control is fulfilled. By using the socket, the fingers touch the electrode clamping pieces in the electrode jack unintentionally without the danger of electric shock.

Drawings

Fig. 1 is a perspective view of a first socket and a two-plug used therewith.

Fig. 2 is an exploded perspective view of the conductive portion inside the socket of fig. 1.

Fig. 3 is a perspective view showing the structure of the socket electrode, the movable contact piece and the electrode piece of the conductive part inside the first socket housing.

Fig. 4 is a perspective view of a receptacle for use with a mating three-prong plug.

Fig. 5 is an exploded perspective view of the second socket.

Fig. 6 is a perspective view showing the structure of the socket electrode, the movable contact piece and the electrode piece of the conductive part inside the housing of the second socket.

Fig. 7 is a perspective view of the socket electrode, the movable contact, and the electrode sheet in fig. 6 in the housing.

Fig. 8 is a perspective view of a second socket and a socket for a three-pin plug.

Fig. 9 is a perspective view of the inside of the base of the third socket.

Fig. 10 is a perspective view of the internal structure of fig. 9 with the base removed.

FIG. 11 is a perspective view of a patch electrode with an electrode clip and a side contact on the tab.

FIG. 12 is a front view of the connector electrode of FIG. 11.

Fig. 13 is a perspective view of a patch electrode with an electrode clip and a side contact on the connecting frame.

FIG. 14 is a front view of the socket electrode of FIG. 13.

Fig. 15 is a perspective view showing a state where the electrode clip copper sheet is press-molded.

Fig. 16 is a perspective view of the stamped and formed copper sheet of fig. 15 bent to form electrode clips.

Fig. 17 is a front view of the stamped and formed copper sheet of fig. 15.

Fig. 18 is a front view of the electrode clip of fig. 16.

Fig. 19 is a perspective view of a first arrangement of socket electrodes, moving contacts, and electrode pads inside the socket housing.

Fig. 20 is a perspective view of a second arrangement of socket electrodes, moving contacts, and electrode pads within the socket housing.

Fig. 21 is a perspective view of a third arrangement of socket electrodes, moving contacts and electrode pads inside the socket housing.

Fig. 22 is a perspective view of a fourth arrangement of socket electrodes, moving contacts and electrode pads inside the socket housing.

Detailed Description

The first socket of the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1-4, the socket comprises a shell 1, a pair of electrode jacks 2 is arranged on the shell 1, at least one plug-in electrode 3 is arranged at a corresponding position in the electrode jack 2 of a live wire on the shell 1, a connecting sheet 4 or a connecting frame 23 shown in fig. 12 and 13 is arranged on the plug-in electrode 3, electrode clamping sheets 5 are arranged on two sides corresponding to the connecting sheet 4 or the connecting frame 23, side contact sheets 6 are arranged on the connecting sheet 4 or the connecting frame 23, the side contact sheets 6 are positioned on one side of the electrode clamping sheets 5, conducting sheets 7 are arranged between the side contact sheets 6 and the electrode clamping sheets 5, and an interval is arranged between the side contact sheets 6 and the conducting sheets 7 to form a normally open contact.

An insulating member 8 or layer is provided between the inner surface of the conductive plate 7 and the electrode jaw 5, as shown in the dotted line in fig. 3, wherein the insulating member 8 or layer serves as an electrical isolation, so that the electrode jaw 5 and the conductive plate 7 cannot be electrically contacted. The occurrence of electric shock is often caused by carelessly inserting a metal rod or sheet into the electrode insertion hole 2. By adopting the technical scheme, even if the metal rod or sheet moves to one side between the two electrode clamping sheets 5 of the plugging electrode 3, the metal rod or sheet can only touch the insulating piece 8 or the insulating layer and cannot be electrically connected with the conducting sheet 7, thereby effectively avoiding the generation of electric shock. The plug-in electrode 3 is formed by stamping a copper sheet, and the connecting sheet 4 or the connecting frame 23, the electrode clamping sheet 5 and the side contact sheet 6 form an integral structure on the copper sheet, so that the plug-in electrode has good conductivity.

When the electric pins 18 of the plug 17 are inserted into the electrode clips 5, on one hand, the electrode clips 5 are opened back and forth and clamped on the front and back sides of the electric pins 18, and on the other hand, one side edge of the electric pins 18 can be pressed against the insulator 8 or the insulating layer, and the conducting strip 7 is triggered to move towards the side contact 6 through the insulator 8 or the insulating layer and is contacted with the side contact 6, so that the electric communication is realized. That is, the contact is closed by pressing the insulating member 8 or the insulating layer to bring the conductive piece 7 into contact with the side contact piece 6, and the normally open contact is closed.

The insulation 8 or insulating layer may provide electrical isolation between the electrical pins 18 and the conductive sheet 7. The conducting strip 7 and the side contact 6 form a normally open switch, and when the switch is used, the normally open switch is connected in series on a live wire or zero wire loop, and can be opened only after the electric pin 18 is inserted into the electrode clamping piece 5. Therefore, if the conducting strip 7 is charged, as long as the electrical pins 18 of the plug 17 are inserted into the electrode jaws 5, the normally open switch is turned on, and the voltage can be transmitted to the electrical pins 18 held by the corresponding electrode jaws 5 through the side contact 6. Otherwise, the switch is disconnected, and the socket electrode 3 is not electrified. In normal conditions, no electric shock occurs when a finger touches the connector electrode 3. In the socket in the prior art, the electrode clamping pieces are directly connected to the live wire and the zero wire, and when fingers or metal pieces touch the electrode clamping pieces, electric leakage or short circuit can be generated to touch personal safety, and the plug-in electrode 3 in the technical scheme is arranged on the live wire, so that electric shock can be avoided, and the use safety of electric appliances can be greatly improved. The insulating member 8 may be a plastic plate, a plastic sheet, a plastic rod, a plastic block, or the like having insulating properties, and also has a certain rigidity, and can be driven by the electrical pins 18 to move. The insulating layer may be a thin layer formed by coating the surface of conductive sheet 7 with an insulating coating, or an insulating sleeve covering conductive sheet 7, or an insulating film covering conductive sheet 7, which only ensures insulation between conductive sheet 7 and electrical pins 18.

Two plug-in electrodes 3 are respectively arranged at corresponding positions in a pair of electrode jacks 2 on the shell 1, two conducting strips 7 are correspondingly arranged and respectively form two normally open contacts with two side contact pieces 6, and insulating pieces 8 or insulating layers are respectively arranged between the inner surfaces of the two conducting strips 7 and the two electrode clamping pieces 5. Thus, when in use, a normally open switch is connected in series with a live wire or a zero wire respectively. Therefore, when the plug-in connector is installed, the connection of a live wire and a zero line can be distinguished without considering, and the plug-in connector 3 can be ensured not to be electrified no matter which plug-in connector 3 is connected to the live wire, so that the plug-in connector is convenient to install. Meanwhile, the danger of electric shock can be avoided when a finger touches any one of the plug electrodes 3.

In this embodiment, the two patch electrodes 3 are identical. During assembly, one of the connectors is rotated by 180 degrees and then correspondingly arranged inside the pair of parallel rectangular electrode jacks 2, and at the moment, a normally open switch is arranged between each connector electrode 3 and the corresponding conducting strip 7. The same two sets of parts are convenient to mount in the shell 1, the structure is simple, and the mounting is easy. In both power supply lines, whichever of the conductive sheets 7 is connected to the live line, touching any one of the connector electrodes 3 with a finger does not cause an electric shock or short circuit. When only the corresponding plug is inserted, each conducting strip 7 is contacted with the corresponding side contact 6 to form a switch to be switched on and electrified, and the two switches form double insurance, thereby greatly improving the use safety of the electric appliance.

The other side of each electrode clamping piece 5 is respectively provided with an electrode piece 9, one end of each conducting piece 7 is arranged on one side of the electrode clamping piece 5 on one plug-in electrode 3 and forms a normally open contact with the side contact piece 6 on the electrode clamping piece 5, the other end of each conducting piece 7 is arranged on the other side of the electrode clamping piece 5 on the other plug-in electrode 3 and forms a normally open contact with the corresponding electrode piece 9 at an interval. Two sides of the two electrode clamping pieces 5 are respectively provided with an insulating part 8 or an insulating layer, the insulating part 8 or the insulating layer is positioned between the side contact pieces 6 or the electrode plates 9, and the electric pins 18 can be prevented from being directly contacted with the side contact pieces 6 or the electrode plates 9 after being inserted. The insulating layer can be coated on the inner side of the side contact piece 6 or the electrode piece 9 by insulating paint or other insulating plastic coatings.

At the moment, a normally open switch is formed between the side contact 6 on one side of one electrode clamping piece 5 and one end of the conducting piece 7, the normally open switch is formed between the other end of the conducting piece 7 and the electrode plate 9 corresponding to the other electrode clamping piece 5 on the right side, the total number of the normally open switches is four, and two normally open switches are connected in series between each plug electrode 3 and the electrode plate 9. The insulating member 8 or layer becomes the key of the tact switch. The switch is switched on and off by touching the four insulating members 8 or layers with the two pins of the plug.

When one electric pin 18 of the plug 17 is inserted into the electrode clamping piece 5, two side edges of the electric pin 18 can be propped against the corresponding two insulating pieces 8 or the corresponding insulating layers to trigger the two normally open switches to be opened, and the two normally open switches are respectively positioned on two paths, so that any one of the plug electrodes 3 cannot be communicated with the electrode plate 9, only when the two electric pins 18 of the plug 17 are inserted into the electrode clamping piece 5, the four normally open switches can be opened, and at the moment, the two plug electrodes 3 are respectively communicated with the two electrode plates 9. In this way, no matter which electrode plate 9 is connected to the live wire, any one of the connector electrodes 3 is touched by a finger or by a touch of a metal member, and no electric shock or short circuit occurs. Because only one or two normally open switches can be opened by inserting a metal piece, such as a nail or a screwdriver, into one electrode jack 2, and the two normally open switches are respectively positioned on two loops of a live wire or a neutral wire, the socket cannot be shocked even if a user, such as a child, plays. When only a corresponding plug is inserted, each conducting strip 7 is contacted with the corresponding side contact 6 to form a switch to be switched on and switched off, and the width of a common metal part, such as an iron nail or a screwdriver, is different from the size of one electric pin 18 of the plug 17, so that the common metal part cannot enter the electrode jack 2 after being larger in size, and cannot simultaneously switch on two switch shapes after being smaller in size. Therefore, the four switches form multiple insurance, and the use safety of the electric appliance is greatly improved. Even if two metal pieces (such as metal tweezers) are inserted into the two electrode jacks 2 to raise and raise the socket electrode 3, as long as the sizes of the two metal pieces are different from the size of the pin 18 of the plug 17, the four switches cannot be turned on simultaneously, and therefore, the circuit cannot be burnt due to short circuit.

The housing 1 is provided with a pair of fixing grooves 10, and the patch electrodes 3 are disposed in the fixing grooves 10. The fixing groove 10 is square, and the connecting sheet 4 or the connecting frame 23 on the plugging electrode 3 is also square, therefore, four sides of the connecting sheet 4 or the connecting frame 23 can be pressed against the wall surface of the square fixing groove 10, so that the plugging electrode 3 can be fixed in the square fixing groove 10. The insulating members 8 are disposed at both ends of the fixing groove 10. The width of the plug electrode 3 is as close as possible to the fixing groove 10, so that the plug electrode 3 is limited and fixed in the fixing groove 10.

The insulating member 8 may be a single plastic sheet, and is suspended or placed in the fixing groove 10, and the insulating member 8 is flexibly held in the fixing groove 10. The insulating element 8 can be made of a wear-resistant material alone, so that it is not easily worn during long-term connection with the pin 18. The root of the insulating member 8 is fixed to the bottom surface of the fixing groove 10. Therefore, the insulating part 8 can be made to be long on the shell 1, the shell 1 can be manufactured through one-time injection molding on a mold, and one installation process of the insulating part 8 can be reduced during assembly. The upper end of the insulating member 8 has good elasticity, and can be opened outwards when the electrical pin 18 is inserted, and can be automatically reset after the electrical pin 18 is pulled out, and the electrical pin is blocked beside the plug electrode 3, so that the plug electrode 3 can be positioned at a set position and is opposite to the electrode jack 2.

The upper section of the insulating part 8 is provided with a lug 11 which protrudes inwards. When the electric pin 18 is inserted, two sides of the electric pin can be abutted against the convex block 11, the convex size of the convex block 11 determines the moving stroke of the insulating member 8, the convex block 11 is touched to enable the insulating member 8 to move outwards, and the higher the convex size of the convex block 11 is, the larger the outward moving distance of the insulating member 8 is. The upper end of the projection 11 is provided with a slope, and the front end of the electric pin 18 can always abut against the slope once touching the slope, so that the insulation member 8 keeps moving outwards smoothly.

A clamping groove 12 is arranged between the pair of fixing grooves 10, a fixing part 19 is arranged on the conducting plate 7, and the fixing part 19 is arranged in the clamping groove 12 for fixing.

The clip slots 12 allow the conductive plate 7 to be secured within the housing 1. It is also possible to electrically connect and fix the two insulating members 8 or the conductive sheet 7 behind the insulating layers at the location of the fixing portion 19. After the conductive plate 7 is fixed in the clip groove 12, the tip thereof is sprung toward the electrode clip 5. If be plastic insulator 8 between electrode clamping piece 5 and conducting strip 7, then conducting strip 7 front end sets up the suppress at plastic insulator 8, can make plastic insulator 8 on the one hand be taken away and can automatic re-setting at electric mortiser foot 18, on the other hand can make and keep a invariable interval between conducting strip 7 and the side contact 6, provides a stable creepage distance for the switch, has improved the reliability of switch.

One end of the fixing groove 10 is provided with a clamping groove 13, a gap 14 is arranged between the fixing groove 10 and the clamping piece groove 12, the electrode plate 9 is arranged in the clamping groove 13, and the contact on the conducting strip 7 can penetrate through the gap 14 to be in contact with the electrode plate 9.

The clamping groove 13 is used for fixing the electrode plate 9. The gap 14 provides an isolated space and a contact path between the conductive sheet 7 and the electrode sheet 9. The electric pin 18 is inserted into the socket electrode 3, and the side edge of the electric pin just can make the insulating piece 8 or the insulating layer move towards one end to drive the conducting strip 7 to move outwards and contact with the electrode plate 9.

The shell 1 is provided with a face cover 15 and a base 16, the electrode jack 2 is arranged on the face cover 15, and the fixing groove 10, the clip groove 12 and the clamping groove 13 are arranged on the base 16. Therefore, during assembly, the inserting electrode 3, the conducting plate 7 and the electrode plate 9 are respectively arranged in the fixing groove 10, the clamping plate groove 12 and the clamping groove 13 and can be positioned and fixed, and then the face cover 15 and the base 16 are covered together, so that the inserting electrode 3, the conducting plate 7 and the electrode plate 9 are fixed on the shell 1 without being fixed by fasteners such as screws, and the assembling is easy and rapid to manufacture and saves time and labor.

The root of the insulating member 8 is fixed to the bottom surface of the fixing groove 10. Thus, during manufacturing, the insulating member 8 and the housing 1 can be integrally formed by an injection molding process, and an assembly process for installing the insulating member 8 in the housing 1 can be omitted.

Based on the same concept, the second socket embodiment of the present invention will be described in further detail below:

as shown in fig. 5 to 8, the socket includes a housing 1, a pair of electrode jacks 2 is arranged on the housing 1, a socket electrode 3 is arranged in the housing 1 corresponding to the electrode jacks 2, a connecting sheet 4 or a connecting frame 23 is arranged on the socket electrode 3, electrode clips 5 are arranged on two sides corresponding to the connecting sheet 4 or the connecting frame 23, a side contact 6 is arranged on the socket electrode 3, the side contact 6 is long on one side of one of the socket electrodes 3, the side contact 6 and the socket electrode 3 are of an integral structure, and no contact resistance exists between the side contact and the socket electrode. The inner surface of the side contact 6 is positioned at one side corresponding to the corresponding electrode clamping piece 5 in the other electrode jack 2, an electrode piece 9 is arranged outside the side contact 6, a gap is arranged between the side contact 6 and the electrode piece 9 to form a normally open contact, and an insulating part 8 or an insulating layer is arranged between the side contact 6 and the corresponding electrode clamping piece 5.

It can be seen that the side contact 6 and the electrode plate 9 corresponding to the electrode clip 5 in the electrode jack 2 also form a switch, which is normally off. However, the on control of the switch is different from the above, the switch is controlled in the other electrode jack 2, that is, the electric pin 18 needs to be inserted into or pulled out from the other electrode jack 2, the insulating member 8 or the insulating layer is driven to move the side contact piece 6 towards the electrode piece 9, so as to control the on or off of the switch, otherwise, the switch is not operated. Only after the electrical pin 18 is inserted into the other electrode receptacle 2 can the switch be switched on and the electrical pin 18 in that electrode receptacle 2 be put in communication with the power supply. Therefore, the technical effect is different from the prior art that which pin enters the jack and which pin is electrified and is easy to cause the danger of direct electric shock, but the pin inserted into the jack is uncharged, and the plugging electrode 3 which is not inserted with the pin is electrified, so that the danger of direct electric shock is avoided, and the use safety is greatly improved. Particularly, when a child plays, the plug-in electrode 3 in the electrode jack 2 can not get an electric shock by using fingers or lifting the plug-in electrode through a metal piece, and a good electric shock prevention effect is achieved.

Two plug-in electrodes 3 are correspondingly arranged in the positions of the pair of electrode jacks 2 respectively, each side contact 6 is positioned at one side of the opposite electrode clamping piece 5 respectively, two electrode pieces 9 are correspondingly arranged, and the two electrode pieces 9 are positioned outside the two side contact 6 respectively. Thus, the two side contact pieces 6 and the two electrode pieces 9 form two switches respectively and are positioned on two loops of a live wire and a zero wire respectively, and the two switches are in a disconnected state under a normal state.

Two plug-in electrodes 3 are correspondingly arranged in the positions of the pair of electrode jacks 2 respectively, each side contact 6 is positioned at one side of the opposite electrode clamping piece 5 respectively, two electrode clamping pieces 5 are correspondingly arranged on the electrode piece 9, and two insulating pieces 8 or insulating layers are correspondingly arranged and positioned at one side of the electrode clamping pieces 5 respectively.

The user can only make the corresponding plug-in electrode 3 in the other electrode jack 2 communicated with the live wire or the zero wire by using the metal piece to raise the plug-in electrode 3 in any one electrode jack 2, and the plug-in electrode 3 in the electrode jack 2 is in an independent state, namely is not communicated with the zero wire or the live wire. When the electric shock protector is installed and used, two power ends, such as two electrode plates 9, are directly connected to a live wire or a zero wire of a power supply respectively, and direct electric shock can be effectively avoided by not considering which electrode plate 9 is connected to the live wire and which electrode plate 9 is connected to the zero wire, so that the safety and the usability are further improved.

The housing 1 is provided with a pair of fixing grooves 10, the socket electrodes 3 are disposed in the fixing grooves 10, and the insulators 8 are disposed at both ends of the fixing grooves 10.

The root of the insulating member 8 is fixed to the bottom surface of the fixing groove 10. The upper section of the insulating part 8 is provided with a lug 11 which protrudes inwards.

One end of the fixing groove 10 is provided with a clamping groove 13, a gap 14 is arranged between the fixing groove 10 and the clamping piece groove 12, the electrode piece 9 is arranged in the clamping groove 13, and the contact on the side contact piece 6 can pass through the gap 14 to be in contact with the electrode piece 9.

The housing 1 is provided with a face cover 15 and a base 16, the electrode insertion hole 2 is provided on the face cover 15, and the fixing groove 10 and the card slot 13 are provided on the base 16.

The shell 1 in the first type of socket is suitable for the shell 1 in the second type of socket, and when the second type of socket is installed, only the side contact 6 in the second type of socket needs to be placed in the clamping groove 12. The electrode clips 5 are adapted to hold the electrical pins 18 of the plug 17 and the ground clips 20 are adapted to hold the ground pins of a triple plug (not shown).

The third socket embodiment of the present invention will be described in further detail based on the same concept:

as shown in fig. 9 and 10, the housing 1 of the third socket is also provided with a face cover 15 and a base 16, and the face cover 15 is the same as the above and will not be described again. This socket, including plastic casing 1 equally, be equipped with a pair of electrode jack 2 on the shell 1, the corresponding position is equipped with connects the joint electrode 3 in the electrode jack 2 on the shell 1, connect and be equipped with connection piece 4 or linking frame 23 on the joint electrode 3, both sides limit that corresponds at connection piece 4 or linking frame 23 is equipped with electrode clamping piece 5, be equipped with side contact 6 on connection piece 4 or the linking frame 23, side contact 6 is in one side of electrode clamping piece 5, the back of side contact 6 is equipped with fixed contact 21, be equipped with the interval and form a normally open contact between side contact 6 and the fixed contact 21.

When the plug 17 is used, after the electric pins 18 are inserted into the electrode jack 2, the side contact piece 6 is pressed, so that the side contact piece 6 is contacted with the fixed contact piece 21, and the normally open contact is closed. Thus, when the fixed contact 21 is connected to a power source, a voltage can be conducted to the electrode jaw 5 through the side contact 6 and finally to the plug.

When the plug 17 is pulled out, the side contact 6 rebounds to leave the fixed contact 21, the normally open contact is reset, and the electric disconnection is realized. Therefore, under normal conditions, the electrode clamping pieces 5 are kept in an uncharged state, no matter a finger or a conductor touches the electrode clamping pieces 5 in the electrode jack 2, the socket does not get an electric shock, and the socket has good electrical appliance safety standards. For safety, the electrode clamping piece 5 with the side contact piece 6 is connected to a live wire loop during installation, so that a user can be ensured not to get an electric shock even if the electrode clamping piece 5 is touched by the user carelessly.

Two plug-in electrodes 3 are respectively arranged at corresponding positions in a pair of electrode jacks 2 on the shell 1, two fixed contact pieces 21 are correspondingly arranged, and two normally open contacts are respectively formed with the two side contact pieces 6. Therefore, no matter which electrode clamping piece 5 is connected on the live wire loop, the accidental contact with the electrode clamping piece 5 can not generate the danger of electric shock, and the installation and the connection are convenient at will and the installation is convenient.

An electrode plate 9 is arranged on the other side of the electrode clamping piece 5, a conducting plate 7 is correspondingly arranged on the front surface of the electrode plate 9, and intervals are correspondingly arranged between the conducting plates to form a normally open contact, the conducting plate 7 is connected with a fixed contact piece 21, and an insulating piece 8 or an insulating layer is arranged between the other side of the electrode clamping piece 5 and the conducting plate 7. Thus, two normally open switches connected in series are formed between the electrode clamping piece 5 and the power supply and are controlled to be opened by the side edge of the electric pin 18, so that even if a handheld metal rod or stick is inserted into the electrode jack 2, only one normally open switch can be opened, but two normally open switches connected in series cannot be opened at the same time. Therefore, when a child plays, the child pokes and lifts the electrode jack 2 by using a stick of the toy, electric shock is not easy to occur, and the safety standard of the use of the electric appliance is greatly improved.

The conducting strip 7 and the fixed contact piece 21 can be arranged on both sides of one plug electrode 3, or can be respectively arranged on one side of two plug electrodes 3. In the latter embodiment, it becomes necessary to touch two electrode jacks 2 simultaneously, so as to make it possible to connect one connector electrode 3 with the power supply, which is more favorable for preventing electric shock and further improving the safety standard of the electric appliance.

Each conducting strip 7 and the fixed contact piece 21 are arranged on a strip copper sheet, a C-shaped bent part is arranged in the middle of the strip copper sheet, the shell 1 is provided with a corresponding clamping groove 12, and the strip copper sheets are arranged in the clamping grooves 12. The C-shaped bending part is arranged on the strip copper sheet, so that the conducting sheet 7 generates good elasticity on the copper sheet, and meanwhile, the copper sheet can be fixed in the clamping groove 12 without influencing the elasticity of the conducting sheet 7. A cylinder is provided in the base 16 of the housing 1 and part of the C-shaped bend is clamped to the cylinder to allow the conductive plate 7 to bend around the cylinder. Therefore, the conducting strip 7 and the fixed contact piece 21 are easy to manufacture and install, have good electrical connection effect and have good elasticity.

As shown in fig. 11 and 12, this is a connector electrode 3 having an electrode clip 5 provided on a tab 4. As shown in fig. 13 and 14, this is a connector electrode in which one electrode clip 5 is provided on the connection frame 23. The difference from the electrode clip 5 is that only one electrode clip 5 is provided on the connection tab 4 or the connection frame 23. The side contact 6 is provided at the side of the electrode jaw 5. The dotted lines in fig. 12 and 14 show the insertion center line along which the pin of the plug enters the electrode jaw 5, and in general, the insertion center line is located at the center line of the side contact piece 6, wherein the electrode jaw 5 and the side contact piece 6 are provided on the connecting piece 4 or the connecting frame 23. The electrode clamping piece 5 is bent and arranged on the connecting piece 4 or the connecting frame 23, and the contact and the root of the electrode clamping piece 5 are respectively positioned at two sides of the insertion center line. The structure is convenient for one-time punch forming during manufacturing. When the pin of the plug is inserted, the contact of the electrode clamping piece 5 is forced to move towards the root side by pressing the guide inclined plane at the upper end of the electrode clamping piece 5 until the contact crosses the insertion central line. The electrode jaws 5 can now spring very strongly against the pins of the plug, with good electrical contact between them.

As shown in fig. 15, 16, 17 and 18, this is a schematic structural view of a molding process of the connector electrode 3 having two electrode clips 5 disposed on the connecting frame 23. The connecting frame 23 is formed by punching a straight plate from a copper sheet before molding, and the two electrode clips 5 are arranged on the straight plate and bent at a certain angle, so that the upper contacts are arranged on the other side of the insertion center line. When the straight plate is bent into the "square" shape, the contact points on the two symmetrically disposed electrode jaws 5 are opposite each other and at the insertion centerline. At the moment, the two electrode clamping pieces 5 have prestress at the insertion center line, so that the pins of the plug can be clamped more tightly, and a good contact conductive effect is achieved.

According to the use requirement, the connecting frame 23 in the plug-in electrode 3 is formed by bending a plurality of conductive straight frame edges and copper sheets. The copper sheet can be bent into an L shape to form a connecting frame consisting of two frame edges. The copper sheet can also be bent into a [ -shape to form a connecting frame formed by three frame sides. The copper sheet can also be bent into a shape of a 'mouth' to form a connecting frame formed by four frame edges and the like. Except the head end and the tail end, the head end and the tail end of each adjacent frame edge are connected into a whole. Thus, the current in the connector electrode 3 can be conducted to the respective electrode clip 5 and the side contact piece 6 through the frame formed by the respective series frame sides. During manufacturing, a copper sheet can be stamped and formed to form an F shape or an E shape and other structures, and then the frame edge is bent to form the plug-in electrode 3, so that the manufacture is convenient, simple and easy. At this time, not only the electrode clip 5 itself on the socket electrode 3 has a certain elasticity, but also the end portion to the root portion of the electrode clip 5 generates a first clamping force to the pin of the plug. A relaxation elastic force is also arranged between the frame where the electrode clamping piece 5 is positioned in the inserting electrode 3 and the frame where the side contact piece 6 is positioned. Therefore, the pins of the plug are superposed by two elastic forces, so that the electrode clamping pieces 5 can be in good electric contact with the pins of the plug, and the electric contact between the plugging electrodes 3 and the pins is not easy to generate heat. Every adjacent frame edge is connected seamlessly, so that no contact resistance exists, the problem of heating caused by electrifying of the plug-in electrode 3 is greatly reduced, and the manufacture is convenient. The plug-in electrode 3 is of an integral structure, so that only one part is required to be installed during assembly, and the operation is simple and rapid.

When the copper sheet is manufactured, the copper sheet can be firstly stamped into an E-shaped structure, so that the electrode clamping pieces 5 and the side contact pieces 6 form an included angle with the corresponding frame edges, the included angle can enable the contact and the root of the connecting piece 4 to be respectively positioned at two sides of the insertion central line, and finally, as long as the E-shaped vertical piece of the copper sheet is bent into a frame, a certain prestress can be naturally generated between the pair of electrode clamping pieces 5.

The position arrangement between the side contact 6 and the conducting strip 7 can be in various forms, as shown in fig. 19 to 22, the conducting strip 7 is arranged on the front surface or the back surface of the side contact 6, a space is arranged between each group of adjacent side contact 6 and conducting strip 7, a normally open contact is formed, and an insulating part 8 or an insulating layer is arranged between the side contact 6 or the conducting strip 7 and the electrode clamping piece 5. Thus, four forms of normally open switches are formed. In the normally open switch composed of the side contact 6 and the conducting strip 7, when the side contact 6 is close to the electrode clamping piece 5, the pin of the plug firstly pushes the insulating piece 8 to make the side contact 6 act, the side contact 6 becomes the movable contact, and the conducting strip 7 becomes the fixed contact. When the conducting strip 7 approaches the electrode clamping piece 5, the pin of the plug firstly pushes the insulating piece 8 to make the conducting strip 7 act, the conducting strip 7 becomes a movable contact strip, and the side contact strip 6 becomes a fixed contact strip. In the normally open switch composed of the electrode plate 9 and the conducting plate 7, when the electrode plate 9 is close to the electrode clip 5, the pin of the plug first pushes the insulating member 8 to make the electrode plate 9 act, the electrode plate 9 becomes a movable contact, and the conducting plate 7 becomes a fixed contact. When the conducting strip 7 approaches the electrode clamping piece 5, the pin of the plug firstly pushes the insulating piece 8 to make the conducting strip 7 act, then the conducting strip 7 becomes a movable contact piece, and the electrode piece 9 becomes a fixed contact piece.

Claims (18)

1. The utility model provides a socket, includes shell (1), shell (1) on be equipped with electrode jack (2), electrode jack (2) in correspond the position and be equipped with and connect and insert electrode (3), characterized by connect and be equipped with connection piece (4) or connecting frame (23) connect and be equipped with electrode clamping piece (5) and side contact (6) on connection piece (4) or connecting frame (23), side contact (6) be in one side of electrode clamping piece (5), side contact (6) openly or the back be equipped with conducting strip (7), side contact (6) and conducting strip (7) between be equipped with the interval and form a normally open contact, side contact (6) or conducting strip (7) and electrode clamping piece (5) between be equipped with insulator (8) or insulating layer.

2. The socket of claim 1, wherein the housing (1) is provided with a pair of the electrode jack (2) and the plug-in electrode (3), the number of the conducting strips (7) is two, and the two conducting strips and the two side strips (6) form two normally open contacts, and an insulating member (8) or an insulating layer is respectively arranged between the two side strips (6) or the conducting strips (7) and the two electrode clamping pieces (5).

3. The socket according to claim 2, wherein each of the electrode jaws (5) is provided at the other side thereof with an electrode pad (9), one end of each of the conductive pads (7) is disposed at one side of the electrode jaw (5) on one of the socket electrodes (3), and forms a normally open contact with the side contact sheet (6) on the electrode clamping sheet (5), the other end of each conducting sheet (7) is arranged on the other side of the electrode clamping sheet (5) on the other plug-in electrode (3), and a space is arranged between the electrode plate and the corresponding electrode plate (9) to form a normally open contact, an insulating part (8) or an insulating layer is arranged between the side contact piece (6) or the conducting piece (7) and the electrode clamping piece (5), the number of the insulating parts (8) or the number of the insulating layers are four, and the four insulating parts or the four insulating layers are respectively positioned on two sides of the two electrode clamping pieces (5).

4. A socket according to claim 1, 2 or 3, wherein the housing (1) is provided with a pair of fixing grooves (10), the connector electrode (3) is disposed in the fixing grooves (10), and the insulating member (8) is disposed at both ends of the fixing grooves (10).

5. A socket according to claim 4, wherein the root of the insulating member (8) is fixed to the bottom surface of the fixing groove (10).

6. A socket according to claim 1, 2 or 3, wherein the insulating member (8) is provided at its upper section with an inwardly projecting protrusion (11).

7. The socket of claim 4, wherein a clip groove (12) is formed between the pair of fixing grooves (10), and a fixing portion (19) is formed on the conductive plate (7), and the fixing portion (19) is fixed in the clip groove (12).

8. The socket according to claim 3, wherein the housing (1) is provided with a pair of fixing grooves (10), the socket electrode (3) is disposed in the fixing grooves (10), the insulating member (8) is disposed at both ends of the fixing grooves (10), one end of the fixing groove (10) is provided with a clamping groove (13), a gap (14) is disposed between the clamping groove (13) and the fixing groove (10), the electrode plate (9) is disposed in the clamping groove (13), and the contact point on the conductive plate (7) can pass through the gap (14) to contact with the electrode plate (9).

9. The socket according to claim 4, wherein the housing (1) is provided with a face cover (15) and a base (16), the electrode insertion holes (2) are provided on the face cover (15), and the fixing grooves (10), the clip grooves (12) and the engaging grooves (13) are provided on the base (16).

10. A socket according to claim 1, 2 or 3, wherein the electrode clamping piece (5) is bent and arranged on the connecting piece (4) or the connecting frame (23), and the contact and the root of the electrode clamping piece (5) are respectively positioned at two sides of the insertion center line.

11. A socket comprises a shell (1), an electrode jack (2) is arranged on the shell (1), the position of the shell (1) corresponding to the electrode jack (2) is provided with a plug-in electrode (3), it is characterized in that the inserting electrode (3) is provided with a connecting sheet (4) or a connecting frame (23), the connecting sheet (4) or the connecting frame (23) is provided with an electrode clamping sheet (5), the inserting electrode (3) is provided with a side contact piece (6), the side contact piece (6) is positioned at one side of the corresponding electrode clamping piece (5) in the other electrode jack (2), the front or back of the side contact piece (6) is provided with an electrode piece (9), a space is arranged between the side contact piece (6) and the electrode piece (9) and a normally open contact is formed, and an insulating part (8) or an insulating layer is arranged between the side contact piece (6) or the electrode plate (9) and the corresponding electrode clamping piece (5).

12. The socket according to claim 11, wherein the housing (1) is provided with a pair of the electrode insertion holes (2) and the plug-in electrodes (3), each side contact (6) is located on one side of the other electrode clip (5), the number of the electrode pieces (9) is two, the two electrode pieces (9) form two normally open contacts with the two side contacts (6), an insulating member (8) or an insulating layer is provided between the two electrode pieces (9) or the side contacts (6) and the two electrode clips (5), and the two electrode pieces (9) are located on the inner surface or the outer surface of the two side contacts (6).

13. The socket according to claim 11 or 12, wherein the housing (1) is provided with a pair of fixing grooves (10), the connector electrode (3) is disposed in the fixing grooves (10), and the insulating member (8) is disposed at both ends of the fixing grooves (10).

14. The socket of claim 13, wherein the root of the insulating member (8) is fixed to the bottom surface of the fixing groove (10).

15. A socket according to claim 11 or 12, wherein the insulating member (8) is provided at its upper section with an inwardly projecting protrusion (11).

16. The socket of claim 13, wherein a slot (13) is formed at one end of the fixing groove (10), a gap (14) is formed between the slot (13) and the fixing groove (10), the electrode plate (9) is arranged in the slot (13), and the contact on the side contact plate (6) can pass through the gap (14) to contact with the electrode plate (9).

17. The socket according to claim 13, wherein the housing (1) is provided with a face cover (15) and a base (16), the electrode insertion holes (2) are provided on the face cover (15), and the fixing grooves (10) and the locking grooves (13) are provided on the base (16).

18. The socket according to claim 11 or 12, wherein the electrode clip (5) is bent and arranged on the connecting piece (4) or the connecting frame (23), and the contact and the root of the electrode clip (5) are respectively positioned at two sides of the insertion center line.

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