CN111490406A - Electrical connection coupler and its socket, automatic rebound mechanism - Google Patents

Abstract

The invention discloses an electrical connection coupler, its socket, and an automatic rebound mechanism. The automatic rebound mechanism is installed in a socket of an electrical connection coupler, wherein the socket has an upper cover, a lower shell, a rotatable protective cover installed between the upper cover and the lower shell, and a first electrode, the The upper cover has a guide groove for guiding the plug of the electrical connection coupler to rotate from an initial position to a conductive position by a predetermined angle, and the protective cover has a plug hole corresponding to the second electrode on the plug, the second electrode The plug can be inserted from the insertion hole and electrically connected to the first electrode when the plug is rotated to the conductive position. The automatic rebound mechanism includes an elastic member, one end of which is mounted on the upper cover and the other end is mounted on the upper cover. on the protective cover, wherein the elastic piece has a restoring force capable of restoring the plug that has not been rotated to the conductive position to the initial position. The present invention provides safe operability, reliable connectivity and stable usability.

Description

Electrical connection coupler and its socket, automatic rebound mechanism

technical field

The present invention relates to an automatic rebound mechanism and a socket and electrical connection coupler having the same.

Background technique

A current rotary conductive electrical connection coupler mainly includes a plug and a socket. After the plug is inserted into the socket, the plug is rotated in one direction at a certain angle to a specified position before the electrodes on the plug can be connected to the socket. The electrodes are completely electrically connected to achieve a safe electrical connection. However, for this kind of electrical connection coupler, sometimes due to user's erroneous operation, for example, the plug is released before the plug is rotated to the specified position. complete contact), resulting in the entire power circuit being in a virtual connection state. If the electrical connection coupler is used for a long time in this virtual connection state, the surrounding plastic parts are easily melted due to the excessive heat generation at the virtual connection position, thereby causing failure. Therefore, there is an urgent need for a new type of electrical connection coupler that can overcome the above-mentioned functional defects.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an electrical connection coupler, its socket, and an automatic rebound mechanism, through which the plug can be reset to the initial position when the plug is not rotated in place, so that it has more safe and reliable performance. .

In order to achieve the above object, the present invention provides an automatic rebound mechanism, which is characterized in that the automatic rebound mechanism is installed in a socket of an electrical connection coupler, wherein the socket has an upper cover, a lower shell, and is installed on the upper cover A rotatable protective cover and a first electrode between the lower shell, the upper cover has a guide groove for guiding the plug of the electrical connection coupler to rotate from an initial position to a conductive position by a predetermined angle, and the protective cover has A plug hole corresponding to the second electrode on the plug, the second electrode can be inserted from the plug hole and is electrically connected to the first electrode when the plug is rotated to the conductive position, and the automatic rebound The mechanism includes an elastic piece, one end of which is mounted on the upper cover and the other end is mounted on the protective cover, wherein the elastic piece has a restoring force capable of restoring the plug that has not been rotated to the conductive position to the initial position.

In one or more embodiments of the present invention, the elastic member is a spring, and there are two springs, which are diagonally disposed at two opposite corners of the upper cover.

In one or more embodiments of the present invention, two wings are formed on the outer periphery of the protective cover correspondingly extending outward, each of the wings is formed with a first fixing column, and one end of each of the springs is formed by setting The second fixing column on the corner of the upper cover is fixedly installed with the upper cover, and the other end of each spring is fixedly installed with the protective cover through the first fixing column.

In one or more embodiments of the present invention, the automatic rebound mechanism further includes a shock-absorbing pad, which is mounted on the upper cover through a mounting groove, and the shock-absorbing pad is in contact with the protective cover when the protective cover is in an initial position that is not rotated. Part of the edges of the wings correspond to contact.

In one or more embodiments of the present invention, the restoring force of each of the springs during operation is 5N-30N; and/or, the diameter of each of the springs is 5mm-6.5mm, and the length is 22 mm ~26mm; and/or, the spring is a piano wire spring or a stainless steel wire spring.

In one or more embodiments of the invention, each of the springs is 5.8 mm in diameter and 24 mm in length.

In order to achieve the above object, the present invention also provides a socket, which is characterized in that the socket includes the above-mentioned automatic rebound mechanism.

In one or more embodiments of the present invention, the first electrode is a socket structure, the socket structure includes a socket tail and a socket head, and the socket head is formed with a socket for the second electrode to be inserted into. a socket and a connecting part electrically connected to the second electrode; the socket also includes a terminal for installing the first electrode and a terminal pad, wherein the terminal is formed with a receiving space for the tail of the socket to be inserted, the The terminal pad has a connecting end face which is in surface contact with the tail of the socket, and the connecting screw contacts with the connecting end and fixes the tail of the socket between the connecting end and the fixing end of the connection terminal.

In one or more embodiments of the present invention, a hook is provided on the fixed end surface of the connection terminal, and a hook matched with the hook is provided on the tail portion of the socket corresponding to the fixed end surface; and /or,

The first electrode includes two power electrodes and a ground electrode, each of the first electrodes is assembled in the electrode installation groove of the lower case through the connection terminal and the terminal pad, and corresponds to each of the first electrodes. The inner and outer sides of the socket head of an electrode are also respectively provided with corresponding socket springs which are in contact with the back of the connection portion of the first electrode, wherein the outer side corresponding to the power electrode and the ground electrode is located on the outside. The socket spring is installed through a slider, and the socket spring located on the inner side corresponding to the power supply electrode is installed through a spring installation groove with an arc-shaped bottom surface further extended from the corresponding electrode installation groove, corresponding to the grounding The inner sleeve spring of the electrode is installed through a spring installation groove with an arc-shaped bottom surface formed by further extending the corresponding electrode installation groove or installed through another slider; and/or

The lower shell is also provided with a top post, the top post is movably installed by the top post spring and can move up and down along the insertion direction of the plug, and the upper part of the top post has a positioning part, wherein the positioning part is when the plug is not inserted. It is matched and positioned with the positioning groove correspondingly arranged on the side surface of the protective cover, and the plug is separated from the positioning groove after the plug is inserted in place.

In order to achieve the above object, the present invention further provides an electrical connection coupler, which includes a plug and the above-mentioned socket.

The present invention can reset the plug to the initial position (that is, the position before the plug is initially inserted into the socket before being rotated) when the plug is not rotated in place (that is, the conductive position), thereby providing a safer operation for the user. performance, more reliable connectivity, and more stable usability.

Description of drawings

1 is an exploded schematic view of a socket for an electrical connection coupler according to a preferred embodiment of the present invention;

FIG. 2 is a schematic front view of the socket of FIG. 1 after being assembled;

FIG. 3 is a schematic structural diagram of the plug of the electrical connection coupler of the present invention;

FIG. 4 is a schematic view of the structure of the back of the upper cover of the socket of FIG. 2, wherein the structure of the automatic rebound mechanism of the present invention is shown;

Fig. 5 is the three-dimensional structure schematic diagram of the spring of the automatic rebound mechanism in Fig. 4;

FIG. 6 is a schematic three-dimensional structure diagram of a connection terminal in the socket of FIG. 1;

7 is a schematic three-dimensional structural diagram of a terminal pad in the socket of FIG. 1;

FIG. 8 is a schematic structural diagram of the assembly of the first electrode of the socket structure of FIG. 1 , the connection terminal, and the terminal pad by connecting screws;

FIG. 9 is a schematic structural diagram of a prior art first electrode and a connection terminal assembled by a connection screw;

10 is a top view of a preferred embodiment after the first electrode of the socket of the electrical connection coupler of the present invention is assembled in the lower shell;

Figure 11 is a side sectional view along the A-A direction in Figure 10;

12 is an exploded schematic view of a socket of an electrical connection coupler according to another preferred embodiment of the present invention;

FIG. 13 is a top view of the first electrode of the socket of FIG. 12 after being assembled in the lower shell;

FIG. 14 is a side sectional view taken along the direction B-B in FIG. 12 .

Detailed ways

An electrical connection coupler according to a preferred embodiment of the present invention includes a plug 90 (as shown in FIG. 3 ) and a socket (as shown in FIGS. 1-2 ). As shown in FIG. 1 , the socket has an upper cover 2 , a lower case 11 , a rotatable protective cover 3 installed between the upper cover 2 and the lower case 11 , and a first electrode, for example, the first electrode includes a Two power supply electrodes 16 are connected to the L line and the N line, and one ground electrode 14 is connected to the ground line. Referring to FIG. 2 , the upper cover 2 has a guide groove 200 . The guide groove 200 includes an insertion port 201 , a positioning port 202 , and a communication groove (not shown) communicating with the insertion port 201 and the positioning port 202 . , the position corresponding to the insertion port 201 is the initial position P1, the position corresponding to the positioning port 202 is the conductive position P2, and the included angle between the initial position P1 and the conductive position P2 is A, which can be, for example, 60°, The guide groove 200 is used to guide the plug 90 to rotate by a predetermined angle A (eg, 60°) from the initial position P1 to the conductive position P2. The protective cover 3 has insertion holes 301 corresponding to the second electrodes on the plug 90 (for example, including two power electrodes 96 and one ground electrode 94 shown in FIG. 3 ). Wherein, the second electrode on the plug 90 can be inserted from the insertion hole 301 and is electrically connected to the first electrode when the plug 90 is rotated to the conductive position P2, that is, the power electrode 96 on the plug can be Corresponding to complete contact with the power supply electrode 16 on the socket, the ground electrode 94 on the plug can correspond to complete contact with the ground electrode 14 on the socket, thereby achieving a safe electrical connection.

As shown in FIG. 3 , the plug 90 also has a positioning block 91 , which can move inward or outward along the direction I-I perpendicular to the outer surface of the plug 90 , and can be linked relative to an unlocking button 92 . The outer surface of the plug moves inward, ie, retracts into the plug. Wherein, when the plug 90 is inserted into the socket, the positioning block 91 can slide along the guide groove 200 of the upper cover 2 and guide the plug 90 to be rotated from the initial position P1 to the conductive position P2. The positioning block 91 is at When in the conductive position P2, the plug 90 is ejected out of the plug and is limited by the positioning opening 202 to fix the plug 90 in the socket, so that the first electrode and the second electrode can be kept in complete contact, so that the plug is in Safe use status. When the plug needs to be released, the positioning block 91 can be retracted into the plug 90 by pressing the unlocking button 92, so that the positioning between the plug and the socket can be released, so that the plug can be pulled out directly , or rotate the plug counterclockwise along the guide groove 200 (as shown in FIG. 2 ) to the initial position P1 and then pull it out.

In the embodiment shown in FIG. 1 , the first electrode of the socket, for example, including the power electrode 16 and the ground electrode 14 , can be a socket structure (the specific structure will be described in detail later in conjunction with FIG. 8 ), It can be installed in a connection terminal 13 by a terminal pad 21 and fixed by a connection screw 20 . 10 to 14, the power electrode 16 and the ground electrode 14 are assembled through the connection terminal 13 and the terminal pad 21 and then respectively installed in the corresponding electrode installation grooves on the lower shell 11 (for example, including the power electrode installation Slot 116 and ground electrode mounting slot 114) within and bounded by it. In addition, corresponding to the power supply electrode 16 and the ground electrode 14, corresponding plug springs 18 are respectively provided on the inner and outer sides to contact them (for example, the back surfaces of the connection parts 1613 and 1614 as shown in FIG. 8 are in contact with each other). ), thereby ensuring reliable electrical connection between the first electrode and the second electrode on the plug. Corresponding to the power electrode 16 and the ground electrode 14 , the plug springs 18 located on the outside are installed through the electrode slider 8 and the ground slider 12 , respectively. Corresponding to the power supply electrode 16, the socket spring 18 located on the inner side is a spring mounting groove with an arc-shaped bottom surface formed by further extending the corresponding power supply electrode mounting groove 16 (refer to the ground electrode shown in FIG. 11). The spring installation groove 1122 formed by the extension of the installation groove 114 is installed. Corresponding to the ground electrode 14, the socket spring 18 located on the inner side can be installed through a spring installation groove 1142 with an arc-shaped bottom surface formed by further extending the corresponding ground electrode installation groove 114 (the embodiment shown in FIGS. 10 and 11 ). ), or can be installed by another slider 122 (the embodiment shown in FIGS. 12 and 13 ).

The lower shell 11 also has a mounting post 10 at the center position, and the protective cover 3 is pivotally mounted through the mounting post 10 . In other embodiments, an insulating plate 6 can also be arranged between the protective cover 3 and the first electrode, the insulating plate 6 can also be pivotally mounted through the mounting post 10 , and a sliding plate 6 is correspondingly arranged on the insulating plate 6 . The slot 61 is used for inserting the second electrode on the plug and sliding along it from the initial position P1 to the conductive position P2.

Preferably, with reference to FIG. 1 , a slider 5 may be provided on the back of the protective cover 3 at a position corresponding to the insertion hole 301 , which is slidably mounted on the protective cover 3 through a slider spring 4 . in the slider mounting slot 305 (see Figure 4). Wherein, when the second electrode of the plug is inserted from the insertion hole 301 , the slider 5 will be pushed away to expose the sliding groove 61 on the insulating plate 6 , so that the second electrode can be inserted into the sliding groove 61 And along the chute 61 from the initial position P1 (see Figure 2) clockwise to the conductive position P2 (see Figure 2); and when the plug is not inserted, the slider 5 is under the reset action of the slider spring 4 The next step is to close the insertion hole 301 , so as to prevent contaminants such as dust from falling into the socket through the insertion hole 301 and causing poor contact.

After the socket is assembled, the upper cover 2 and the lower shell 11 can be fixed by assembling screws 9 . A decorative board 1 can be further mounted on the upper cover 2 through mounting screws 19 to make the socket look more beautiful. The front of the assembled socket is shown in FIG. 2 . The socket can also be provided with a mark 22 on which the use method of the socket can be marked, or other warning marks, etc., which are not intended to limit the present invention.

The special feature of the present invention is that the socket also has an automatic rebound mechanism, and the automatic rebound mechanism is installed in the socket, for example, between the protective cover 3 and the upper cover 2 . The automatic rebound mechanism includes an elastic piece, one end of which is mounted on the upper cover 2 and the other end is mounted on the protective cover 3 , wherein the elastic piece has the plug capable of not being rotated to the conductive position P2 90 is the restoring force to return to this initial position P1.

In this embodiment, as shown in FIG. 4 , the elastic member can be a spring 17 , and there can be two springs, which are diagonally disposed on two opposite corners of the upper cover 2 . . In the embodiment shown in FIG. 4 , two wings 31 are formed on the outer periphery of the protective cover 3 correspondingly extending outwards, each of the wings 31 is formed with a first fixing column 37 , and one end of each of the springs 17 is formed. It is fixedly installed with the upper cover 2 through the second fixing posts 27 on the corresponding corners of the back of the upper cover 2 , and the other end of each spring 17 is connected to the protective cover 3 through the first fixing posts 37 . Fixed installation.

In the present invention, the restoring force of each spring 17 during operation may be 5N˜30N. Preferably, as shown in FIG. 5 , the diameter D of each spring may be, for example, 5 mm˜6.5 mm, preferably 5.8 mm. The length L of each spring 17 may be, for example, 22-26 mm, preferably 24 mm. The fixed end of each spring 17 has an opening O whose diameter can be, for example, 2 mm. The spring 17 can be a piano wire spring or a stainless steel wire spring. Of course, it can be understood that the elastic member is not limited to a spring, and the diameter, length, etc. of the spring 17 are not limited to the above-mentioned numerical values. According to design requirements, other numerical values can also be used, which are not intended to be used for the present invention. limits.

Preferably, as shown in FIG. 4 , and with reference to FIG. 1 , the automatic rebound mechanism may further include a shock-absorbing pad 15 , which can be installed on the upper cover 2 through a mounting groove 25 . The shock-absorbing pad 15 When the protective cover 3 is in a non-rotated initial position, it is in corresponding contact with a part of the edge of the wing portion 31 . The material of the shock-absorbing pad 15 may be TPU. The shock-absorbing pad 15 can protect the protective cover 3 and the upper cover 2 from being damaged due to the excessive rebound force of the spring 17 .

Preferably, as shown in FIG. 6 , the terminal 13 includes opposite end faces 131 and 132 and opposite end faces 133 and 134 . The end face 131 is also provided with screw holes 135 .

As shown in FIG. 7 , the terminal pad 21 is substantially in the shape of an “n” shape, which includes opposite fixed end surfaces 211 and connection end surfaces 212 , and an intermediate end surface 213 connecting the fixed end surface 211 and the connection end surface 212 . The fixed end surface 211 There are screw holes 215 on it. Preferably, the connecting end surface 212 may have an arc, for example, to match the outer surface of the first electrode.

As shown in FIG. 8 , the first electrode can be a plug-in structure. Taking the power electrode 16 as an example, the plug-in structure of the power electrode 16 can be formed by bending a strip electrode, and bending to form a plug-in head 161 and A socket tail 162, wherein the socket head 161 includes a socket 1610 for inserting the second electrode, which is jointly defined by the two bent ends 1611 and 1612, and a socket 1610 for inserting the second electrode. The connection parts 1613 and 1614 to which the second electrodes are electrically connected. Referring to FIG. 1 , during installation, plug springs 18 may be correspondingly disposed on the backs of the connecting parts 1613 and 1614 so that the connecting parts 1613 and 1614 can keep close contact with the inserted second electrode. The socket tail 162 is inserted into the accommodating space 130 of the connection terminal 13 for installation. The connecting end face 212 of the terminal pad 21 is inserted into the accommodating space 130 and forms surface contact with the socket tail 162. The connection screw 20 is inserted through Through the screw hole 215 (see FIG. 7 ) and the screw hole 135 (see FIG. 6 ) and contacting the connecting end face 212 , the socket tail 162 can be fixed on the connecting end face 212 and the end face 132 of the connection terminal 13 between.

In the prior art, the structure in which the first electrode and the connecting terminal are assembled by connecting screws is shown in FIG. 'Tighten the installation, when the access wire is tightened to tighten the wiring screw 20, if the tightening force is relatively concentrated (that is, the screw end of the wiring screw 20 is in direct contact with the socket tail 162' of the power electrode 16', and the contact area is small), it will lead to The socket tail portion 162 ′ at the connection is deformed, and the deformation here will affect the dimension change of other positions of the socket structure. Compared with the prior art shown in FIG. 9 , the present invention shown in FIG. 8 increases the stress dispersion design at the connection terminals (that is, increases the terminal pads 20 ), when it is connected to the wire (such as L wire or After the N wire or the ground wire), when tightening the connection screw 20, the screw end is firstly designed with the stress dispersing mechanism, for example, the connection end face 212 of the terminal pad is in surface contact (the hardness of the terminal pad is greater than that of the connection screw and the first electrode). hardness), and then the stress dispersing structure is in contact with the socket tail 162, thereby effectively avoiding the problems of stress concentration and deformation of the socket structure caused by direct contact in the prior art.

Preferably, as shown in FIG. 8 , in the present invention, the end surface 132 (ie, the fixed end surface) of the terminal 13 is also provided with a hook 1322 , and the end surface of the socket tail portion 162 corresponding to the end surface 1322 is provided. A hook portion 1622 matched with the hook portion 1322 is provided on the upper portion, and the installation between the first electrode and the connection terminal 13 can be made more secure by the engagement between the hook portion 1322 and the hook portion 1622 .

In a preferred embodiment of the present invention, as shown in FIGS. 10 to 11 , the plug spring 18 located on the outer side is installed through the electrode slider 8 and the grounding slider 12 , and the plug spring 18 located on the inner side is It is installed through a spring installation groove with an arc-shaped bottom surface to ensure that each socket spring 18 is assembled in place. For example, as shown in FIG. 11 , the inner and outer sides of the ground electrode 14 are respectively provided with a socket spring 182 located on the inner side and a socket spring 181 located on the outer side, wherein the socket spring 181 is installed through the grounding slider 12 , The socket spring 182 is installed through a spring installation groove 1142 with an arc-shaped bottom surface which is further extended from the ground electrode installation groove 114 .

For the embodiment shown in FIGS. 10-11 , since the upper part of the ground electrode 14 (not marked in the figure) keeps electrical contact with the ground electrode on the plug after the plug is inserted into the socket (that is, when the plug is removed from the socket) During the process of rotating the initial position P1 to the conductive position P2, the ground electrode 94 on the plug is in electrical contact with the ground electrode 14 on the socket). The tightening portion interferes with the inner side surface of the ground electrode mounting groove 114 , as shown in FIG. 11 . In order to avoid this interference, in another preferred embodiment of the present invention, the ground electrode mounting groove 114 can be translated outwards corresponding to the interference portion, as shown in FIGS. 12-14 , that is, the ground electrode can be expanded outward The electrode installation groove 114, however, due to the particularity of the injection molding process, considering the possibility of product molding and in order to ensure the normal assembly of the sleeve spring 182, the present invention preferably adds another slider 122 to Install the socket spring 182, so that the ground electrode 14 can be limited by the cooperation of the inner and outer sliders and the socket spring, so as to avoid the tightening screw 20 for installing the ground electrode 14 and the ground electrode installation groove. The inner side of 114 interferes.

Preferably, as shown in FIG. 12 , in the present invention, a top post 7 is movably installed on the lower shell 11 of the socket through a top post spring 77 , and the top post 7 can move up and down along the insertion direction of the plug. After installation, the positioning part (not shown in the figure) located on the upper part of the top column 7 passes through the through hole 67 on the insulating plate 6 and can be matched with the positioning groove 36 provided on the side of the protective cover 3 for positioning. Wherein, when the plug is not inserted, the positioning portion of the top post 7 is positioned in cooperation with the positioning groove 36 on the protective cover 3 to limit the rotation of the protective cover 3 and ensure that the socket is in the initial position. When the plug is inserted into the socket, the ground electrode 94 (see FIG. 3 ) on the plug is inserted downward into the socket, and when inserted into the contact part between the lower part of the ground electrode 94 and the lower part of the top post 7 (not marked in the figure) When in contact, the ground electrode 94 will drive the top post 7 to move downward until the positioning portion of the top post 7 is disengaged from the positioning groove 36 of the protective cover 3 (ie, the plug is inserted in place). Rotate the plug, so that the rotation of the protective cover 3 can be driven by the rotation of the plug. During the downward insertion of the plug, if the ground electrode 94 is not inserted in place (that is, the positioning portion of the top post 7 is not completely disengaged from the positioning groove 36 of the protective cover 3), the plug will It is restricted from rotating. During the rotation of the plug, if the plug is not rotated in place, the protective cover 3 will reset the plug to the initial position under the action of the automatic rebound structure. The above-mentioned structures can also be provided in the socket of the embodiment shown in FIG. 1 , ie, the top post 7 , the top post spring 77 , the through hole 67 , the positioning groove 36 , etc., which will not be repeated here.

During the use of the electrical connection coupler of the present invention, after inserting the plug into the socket (no power is supplied at this time), the plug is rotated clockwise by 60° to the conductive position (at this time, the positioning block of the plug springs into the guide of the upper cover). in the positioning port of the slot, and then power on) before it can be used. Moreover, in the present invention, through the automatic rebound mechanism (such as a spring) arranged in the socket, if the user does not rotate the plug to a specified position (such as the conductive position P2) during use, the plug will be forcibly pulled under the action of the restoring force of the spring Return to the initial position P1 (that is, the position where the plug has just been inserted into the socket), thereby avoiding the occurrence of the virtual connection state. Therefore, the present invention greatly improves the functional defects of traditional sockets (low-current plugs, sockets), and has safe operability, reliable connectivity, and stable usability.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be subject to the scope defined by the appended claims.

Claims (10)

1. An automatic rebounding mechanism, characterized in that, the automatic rebounding mechanism is installed in a socket of an electrical connection coupler, wherein the socket has an upper cover, a lower cover, a rotatable protecting cover installed between the upper cover and the lower cover, and a first electrode, the upper cover has a guiding slot for guiding a plug of the electrical connection coupler to rotate from an initial position by a predetermined angle to a conductive position, the protecting cover has a plugging hole corresponding to a second electrode on the plug, the second electrode can be inserted from the plugging hole and is electrically connected to the first electrode when the plug is rotated to the conductive position, the automatic rebounding mechanism comprises:

and one end of the elastic piece is arranged on the upper cover, and the other end of the elastic piece is arranged on the protective cover, wherein the elastic piece has a resetting force capable of resetting the plug which is not rotated to the conductive position to the initial position.

2. The automatic rebounding mechanism according to claim 1, wherein said elastic member is a spring, and said two springs are diagonally disposed at positions corresponding to two opposite corners of said upper cover.

3. The automatic rebounding mechanism according to claim 2, wherein two wings are formed on the outer periphery of the protecting cover to extend outwardly, a first fixing post is formed on each wing, one end of each spring is fixedly attached to the upper cover through a second fixing post disposed on the corner of the upper cover, and the other end of each spring is fixedly attached to the protecting cover through the first fixing post.

4. The automatic rebounding mechanism according to claim 3, further comprising a shock-absorbing pad mounted to the upper cover through a mounting groove, the shock-absorbing pad being in corresponding contact with a partial edge of the wing portion when the protecting cover is in the initial position where it is not rotated.

5. The automatic rebounding mechanism according to claim 2, 3 or 4, wherein each of said springs has said returning force of 5N to 30N during operation; and/or each spring has a diameter of 5-6.5 mm and a length of 22-26 mm; and/or the spring is a piano wire spring or a stainless wire spring.

6. The automatic rebounding mechanism according to claim 5, wherein each of said springs has a diameter of 5.8mm and a length of 24 mm.

7. A socket comprising an automatic rebounding mechanism according to any one of claims 1 to 6.

8. The socket of claim 7, wherein the first electrode is a socket structure, the socket structure includes a socket tail and a socket head, and the socket head is formed with a socket for the second electrode to insert and a connecting portion electrically connected to the second electrode; the socket further comprises a wiring terminal and a terminal tile pad, wherein the wiring terminal is used for installing the first electrode, the wiring terminal is provided with an accommodating space for inserting the tail of the plug bush, the terminal tile pad is provided with a connecting end face which is in surface contact with the tail of the plug bush, and a wiring screw is in contact with the connecting end face and fixes the tail of the plug bush between the connecting end face and the fixing end face of the wiring terminal.

9. The socket of claim 8, wherein the fixed end surface of the connecting terminal is provided with a hook, and the tail of the plug bush corresponding to the fixed end surface is provided with a hook portion engaged with the hook; and/or the presence of a catalyst in the reaction mixture,

the first electrode comprises two power supply electrodes and a grounding electrode, each first electrode is installed in the electrode installation groove of the lower shell after being assembled by the wiring terminal and the terminal tile pad, and corresponding socket springs are respectively arranged at the inner side and the outer side of the socket head corresponding to each first electrode and are contacted with the back surface of the connecting part of the first electrode, wherein, the plug bush spring corresponding to the power electrode and the grounding electrode and positioned at the outer side is installed through a sliding block, the insertion sleeve spring corresponding to the power electrode at the inner side is installed through a spring installation groove having an arc-shaped bottom surface formed by further extending the corresponding electrode installation groove, the plug bush spring corresponding to the grounding electrode and positioned at the inner side is installed through a spring installation groove which is formed by further extending the corresponding electrode installation groove and has an arc-shaped bottom surface or is installed through another sliding block; and/or

The lower shell is also provided with a top column which is movably arranged through a top column spring and can move up and down along the insertion direction of the plug, and the upper part of the top column is provided with a positioning part, wherein the positioning part is matched and positioned with a positioning groove correspondingly arranged on the side surface of the protective cover when the plug is not inserted, and the positioning part is separated from the positioning groove after the plug is inserted in place.

10. An electrical connector coupler comprising a plug and a socket as claimed in any one of claims 7 to 9.

Images