Male plug of electric connector and electric connector

Abstract

An electric connector male head plug and an electric connector are provided, more than one male head conductive needle is arranged in the male head plug, the more than one male head conductive needle is respectively embedded in a male head housing, the male head housing is provided with an elastic clamping sheet and an unlocking pressing sheet, one end of the elastic clamping sheet is fixedly connected to the front end of the male head housing, and the other end of the elastic clamping sheet is fixedly connected to the other end of the male head housing. One end of the elastic clamping piece is provided with an unlocking pressing piece, the other end of the elastic clamping piece extends towards the rear end of the male head shell and forms a free end, the unlocking pressing piece corresponds to the outer side of the free end, the elastic clamping piece is provided with a locking clamping edge which can be clamped with the female head socket during use, and when the electric connector is used, the male head plug is inserted into the female head socket. According to the utility model, the card type locking structure is arranged in the male head plug, so that the phenomena of loosening and poor contact can be effectively prevented after the male head plug is plugged with the female head socket. The conductive needles in the male plug and the female socket are arranged in the rubber shell, so that fingers of a user cannot touch the conductive needles during use, the safety is high, the risk of electric shock is avoided, and the phenomenon of arc striking between the conductive needles can be avoided.

Description

Technical Field

[0001] This utility model discloses an electrical connector, particularly a male electrical connector plug and electrical connector, belonging to the field of electronic components and their application technology. Background Technology

[0002] An electrical connector is a component used to enable the transmission of power or signals between electrical devices. Electrical connectors establish an electrical connection between devices through metal contacts (pins or plugs), and are typically used to connect wires, cables, or circuit boards. Their main function is to ensure that current or signals can be transmitted stably and efficiently from one device to another.

[0003] Currently, common connectors are widely used in display devices, industrial equipment, automobiles, consumer electronics, communication equipment and many other fields.

[0004] In the design of large LED displays, the connector female terminal structure plays a crucial role. As the electrical interface of the display, the connector is responsible for transmitting power signals, control signals, and other signals to the LED modules or panel. Therefore, the design of the connector female terminal structure must possess reliability, durability, and excellent electrical performance.

[0005] In the current market, LED displays are usually powered by 220V AC mains power. In existing technology, 220V electrical connectors are basically directly connected using a male-female plug-in structure, usually without any protective devices. This poses a risk of loosening and poor contact during use. In addition, the conductive pins have no shielding or protective structure, which can easily lead to electric shock during use, posing a safety hazard. Summary of the Invention

[0006] In view of the shortcomings of the existing connectors mentioned above, which use a male-female plug-in structure for connection and lack protective devices, this utility model provides an electrical connector male plug and electrical connector, which is provided with an elastic card-type locking structure in the male plug, which can effectively prevent loosening and poor contact after being plugged into the female socket.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a male plug for an electrical connector, the male plug including a male outer shell and a male conductive pin, one or more male conductive pins are provided, the one or more male conductive pins are respectively embedded in the male outer shell, the male outer shell is provided with an elastic card and an unlocking pressure plate, one end of the elastic card is fixedly connected to the front end of the male outer shell, and the other end extends toward the rear end of the male outer shell to form a free end, the unlocking pressure plate corresponds to the outside of the free end, and the elastic card is provided with a locking edge that can be engaged with the female socket when in use.

[0008] An electrical connector includes a female socket and a male plug as described above, wherein the male plug is inserted into the female socket during use.

[0009] The technical solution adopted by this utility model to solve its technical problem further includes:

[0010] The locking edge includes a guide inclined surface and a locking contact surface. In the direction from the front end to the rear end of the male connector shell, the guide inclined surface and the locking contact surface are connected in sequence, and the distance between the guide inclined surface and the elastic card gradually increases.

[0011] The front end of the male connector housing extends forward and is provided with a male connector plug, which is integrally formed with the male connector housing.

[0012] The male connector has a male conductive pin cavity inside, with one or more male conductive pin cavities, and each male conductive pin cavity contains one male conductive pin; and / or,

[0013] One or more male conductive needle cavities are arranged in a straight line.

[0014] The male connector has a foolproof groove on its bottom surface; and / or,

[0015] The male connector has male pin markings on its bottom surface; and / or,

[0016] The male connector has a directional marking on its top surface.

[0017] The male conductive pin is fixedly embedded in the male outer shell. A male limiting step is provided at the middle position of the male conductive pin. The front end of the male limiting step is the male insertion end, and the rear end of the male limiting step is the male welding end.

[0018] The male conductive pin is made of copper; and / or,

[0019] The male connector shell is made of plastic.

[0020] The female connector includes a female connector housing and a female connector conductive pin. There is one or more female connector conductive pins, which are respectively embedded in the female connector housing. The female connector housing has a plug-in cavity inside. The opening of the plug-in cavity is located on the front end face of the female connector housing. A locking protrusion is fixedly provided inside the plug-in cavity. When the male connector is inserted, the locking protrusion on the male connector can lock the locking protrusion.

[0021] The insertion cavity is fixedly provided with one or more female conductive needle sleeves, and each female conductive needle is inserted into the female conductive needle sleeve; and / or,

[0022] The bottom of the insertion cavity is fixedly provided with a foolproof protrusion; and / or,

[0023] A buckle is fixedly provided on the bottom surface of the female head shell; and / or,

[0024] The aforementioned latching device has two latches, which are symmetrically arranged at the bottom of the female connector housing; and / or,

[0025] The buckle includes a buckle foot and an auxiliary foot. A buckle connector is fixedly provided at the bottom end of the buckle foot, and a through groove is formed between the buckle foot and the auxiliary foot; and / or,

[0026] A protective cover is provided at the rear end of the female head shell, and the protective cover is integrally formed with the female head shell; and / or,

[0027] The protective cover is provided with one or more insulating sheets inside; and / or,

[0028] The insulating sheet is arranged parallel to the left and right side plates of the protective cover, and the insulating sheet extends towards the bottom of the female head shell to form an auxiliary positioning part; and / or,

[0029] The top surface of the protective cover is marked with female pin markings; and / or,

[0030] The female conductive pin is made of copper; and / or,

[0031] The aforementioned female conductive pin is generally L-shaped, with one end being the female plug-in end and the other end being the female solder end. The female plug-in end is inserted into the female conductive pin sleeve, and the female conductive pin is bent towards the bottom surface of the female outer shell to form the female solder end; and / or,

[0032] The female connector has a crown spring receiving cavity inside, and a crown spring is inserted into the crown spring receiving cavity; and / or,

[0033] The crown spring is generally drum-shaped; and / or,

[0034] The female conductive needle sleeve has a insertion hole at its front end, and a sealing step is provided around the insertion hole; and / or,

[0035] The crown spring receiving cavity is provided with a female head limiting step; and / or,

[0036] A fixing protrusion is provided on the outer surface of the female conductive pin; and / or,

[0037] The fixing ring is provided with an anti-retraction step at one end near the tail of the female conductive pin, and the end face of the anti-retraction step is perpendicular to the central axis of the female conductive pin; and / or,

[0038] The aforementioned fixing protrusion ring has two parts.

[0039] The beneficial effects of this utility model are as follows: The male plug incorporates a flexible, clip-type locking structure, which effectively prevents loosening and poor contact after insertion into the female socket. The conductive pins in both the male plug and female socket are housed inside a rubber shell, preventing the user's fingers from touching them during use, thus ensuring high safety and eliminating the risk of electric shock. Furthermore, the conductive pins in both the male plug and female socket are coated with rubber to prevent arcing. Finally, the male plug and female socket also feature a foolproof design to prevent reverse insertion.

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural diagram of the electrical connector in this utility model.

[0042] Figure 2 This is a three-dimensional structural diagram of the electrical connector in this utility model from another perspective.

[0043] Figure 3 This is a schematic diagram of the disassembled structure of the electrical connector in this utility model.

[0044] Figure 4 This is a front view structural diagram of the male plug in this utility model.

[0045] Figure 5 This is a schematic diagram of the rear view of the male plug in this utility model.

[0046] Figure 6 This is a schematic diagram of the left side of the male plug structure of this utility model.

[0047] Figure 7 This is a top view of the male plug structure of this utility model.

[0048] Figure 8 This is a top-view structural diagram of the male plug in this utility model.

[0049] Figure 9 This is a three-dimensional structural diagram of the male plug in this utility model.

[0050] Figure 10 This is a three-dimensional structural diagram of the male plug of this utility model from another perspective.

[0051] Figure 11 This is a three-dimensional structural diagram of the male plug in this utility model from a third-view perspective.

[0052] Figure 12 This is a schematic diagram of the exploded structure of the male plug in this utility model.

[0053] Figure 13 This is a schematic diagram of the cross-sectional structure of the male plug in this utility model.

[0054] Figure 14 This is a schematic diagram of the exploded cross-sectional structure of the male plug in this utility model.

[0055] Figure 15 This is a front view schematic diagram of the female socket in this utility model.

[0056] Figure 16 This is a schematic diagram of the rear view of the female connector in this utility model.

[0057] Figure 17 This is a schematic diagram of the left side of the female connector in this utility model.

[0058] Figure 18 This is a schematic diagram of the right side of the female connector in this utility model.

[0059] Figure 19 This is a top view of the female connector of this utility model.

[0060] Figure 20 This is a bottom view of the female connector structure of this utility model.

[0061] Figure 21 This is a three-dimensional structural diagram of the female connector socket in this utility model.

[0062] Figure 22 This is a three-dimensional structural diagram of the female connector socket from another perspective of this utility model.

[0063] Figure 23 This is a three-dimensional structural diagram of the female connector socket in this utility model from a third-view perspective.

[0064] Figure 24 This is an exploded view of the female connector in this utility model.

[0065] Figure 25 This is a schematic cross-sectional view of the female connector in this utility model.

[0066] Figure 26 This is a schematic diagram of the exploded cross-sectional structure of the female connector in this utility model.

[0067] Figure 27 This is a schematic diagram of the cross-sectional structure of the female conductive pin in this utility model.

[0068] Figure 28 This is a schematic diagram of the exploded cross-sectional structure of the female conductive pin in this utility model.

[0069] In the diagram, 1-Female connector, 11-Female connector housing, 12-Protective cover, 13-Snap fastener, 14-Insulating sheet, 15-Auxiliary positioning part, 16-Female connector conductive pin sleeve, 17-Merging cavity, 18-Anti-foolproof protrusion, 19-Female connector pin marking, 110-Snap-on protrusion, 111-Snap fastener foot, 112-Auxiliary foot, 113-Through groove, 114-Snap connector, 115-Merging hole, 116-Sealing step, 117-Female connector conductive pin, 118-Female connector mating end, 119-Female connector soldering end, 1 20-Crown spring, 121-Fixing convex ring, 122-Female head limiting step, 123-Anti-retraction step, 124-Crown spring receiving cavity, 2-Male plug, 21-Male head shell, 22-Elastic clip, 23-Locking clip edge, 24-Unlocking pressure plate, 25-Male head conductive pin cavity, 26-Anti-foolproof groove, 27-Direction indicator, 28-Male head pin indicator, 29-Male head conductive pin, 210-Male head connector, 211-Male head plug end, 212-Male head soldering end, 213-Male head limiting step. Detailed Implementation

[0070] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.

[0071] For ease of description and clarity, the appendix of this utility model is attached. Figure 4 The directions shown define the front, back, left, right, top, and bottom of the male connector, which also defines the front view, rear view, left view, right view, top view, and bottom view of the male connector. Figure 15 The directions shown define the front, back, left, right, top, and bottom of the female connector, which correspond to the front view, rear view, left view, right view, top view, and bottom view of the female connector. When the male plug is used in conjunction with the female connector, one end of the male plug that connects to the female connector is defined as the front end of the male plug, and the other end is the rear end. Similarly, when the female connector is used in conjunction with the male plug, one end of the female connector that connects to the male plug is defined as the front end of the female connector, and the other end is the rear end. In use, the side of the female connector that contacts the circuit board is defined as the bottom surface of the female connector, and the other side is the top surface.

[0072] Please refer to the appendix for details. Figure 4 To be continued Figure 14This utility model mainly protects a male connector plug. The male connector plug 2 mainly includes a male connector shell 21 and male conductive pins 29. The male connector shell 21 is made of plastic. There are one or more male conductive pins 29, which are respectively embedded in the male connector shell 21. The male connector shell 21 is provided with an elastic card 22. One end of the elastic card 22 is fixedly connected to the front end of the male connector shell 21, and the other end extends toward the rear end of the male connector shell 21 to form a free end. A locking edge 23 is fixedly provided on the elastic card 22. The locking edge 23 includes a guide inclined surface and a locking contact surface. In the direction from the front end to the rear end of the male connector shell 21, the guide inclined surface and the locking contact surface are connected in sequence, and the distance between the guide inclined surface and the elastic card 22 gradually increases. When the male plug and female socket are connected, they can be locked together by the locking clip 23, which plays an auxiliary role in fixing them. The male plug and female socket are locked by the elastic clip 22 with the locking clip 23, which can effectively prevent loosening and poor contact.

[0073] In this embodiment, a male connector 210 extends forward from the front end of the male connector housing 21. The male connector 210 is integrally formed with the male connector housing 21 and is functionally distinguishable. The shape of the male connector 210 matches the shape of the socket cavity on the female connector, allowing it to be inserted into the socket cavity. In this embodiment, the male connector 210 has a male conductive pin cavity 25 inside. There is one or more male conductive pin cavities 25, arranged in a straight line. Each male conductive pin cavity 25 contains a male conductive pin 29. The male plug end 211 of the male conductive pin 29 is located inside the male conductive pin cavity 25. Because the opening of the male conductive pin cavity 25 is small, it is not easy for the user to put their hand into the male conductive pin cavity 25, thus preventing electric shock due to accidental contact.

[0074] In this embodiment, the end of the elastic card 22 is fixedly connected to the front end of the male connector 210. When the male connector 210 is inserted into the female socket, the elastic card 22 is naturally squeezed, so that the locking edge 23 on the elastic card 22 is engaged with the female socket.

[0075] In this embodiment, an unlocking pressure plate 24 is fixedly provided on the male connector housing 21. The unlocking pressure plate 24 is provided on the outer side of the free end of the elastic card 22. The elastic card 22 can be pressed down by the unlocking pressure plate 24, so that the locking edge 23 is released from the female connector socket, thereby enabling the male connector to be pulled out of the female connector socket.

[0076] In this embodiment, the male conductive pin 29 is fixedly embedded in the male connector housing 21. A male limiting step 213 is provided at the middle position of the male conductive pin 29, which can prevent the male conductive pin 29 from coming out of the male connector housing 21 by limiting the position of the male conductive pin 29. In this embodiment, the front end of the male limiting step 213 can be defined as the male plug end 211 of the male conductive pin 29, which is used for electrical connection with the female connector socket 1. The rear end of the male limiting step 213 can be defined as the male welding end 212 of the male conductive pin 29, which is used for welding to a cable (not shown in the figure).

[0077] In this embodiment, the male conductive pin 29 is made of copper. In actual implementation, it can also be made of aluminum or alloy or other metal materials that can be used in electrical connectors, depending on actual needs.

[0078] In this embodiment, the bottom surface of the male connector 210 is provided with a foolproof groove 26 to ensure that the male plug and female socket are not inserted in reverse. In this embodiment, the bottom surface of the male connector 210 is provided with male pin markings 28, which can be used to easily identify the function of each male conductive pin 29, so as to avoid incorrect wiring.

[0079] In this embodiment, a direction mark 27 is provided on the top surface of the male plug 210, which can be used to indicate the insertion direction of the male plug.

[0080] Please refer to the appendix for details. Figure 1 Appendix Figure 2 and attached Figure 3 This utility model also protects an electrical connector, which mainly includes a male plug 2 and a female socket 1. In use, the male plug 2 is inserted into the female socket 1. The structure of the male plug 2 is as described above and will not be repeated here. The female socket 1 can adopt the following structure.

[0081] Please refer to the appendix for details. Figure 15 To be continued Figure 28The female connector mainly includes a female connector housing 11 and female connector conductive pins 117. The female connector housing 11 is made of plastic material. There is one or more female connector conductive pins 117, which are respectively embedded in the female connector housing 11. In this embodiment, a plug-in cavity 17 is formed inside the female connector housing 11. The plug-in cavity 17 is used to accommodate the male connector 210 in the male connector when it is plugged in with the male connector. The opening of the plug-in cavity 17 is located on the front end face of the female connector housing 11. In this embodiment, a locking protrusion 110 is fixedly provided inside the insertion cavity 17. When the male plug is inserted, the locking edge 23 on the male plug can lock the locking protrusion 110, thereby preventing the male plug 1 from coming out. Preferably, the locking protrusion 110 is located on the left and right sides inside the insertion cavity 17 near the opening of the insertion cavity 17. In specific implementation, the locking protrusion 110 can also be located in other positions, such as on the top and bottom sides, or at a position other than the opening of the insertion cavity 17, or on all four sides. To ensure the locking effect, the locking protrusion 110 preferably adopts a symmetrical arrangement structure. In specific implementation, an asymmetrical structure can also be adopted according to actual needs.

[0082] One or more female conductive pin sleeves 16 are fixedly installed inside the plug cavity 17. Each female conductive pin sleeve 16 contains one female conductive pin 117. The female conductive pin sleeve 16 and the female outer shell 11 are integrally injection molded. Due to the insulation effect of the female conductive pin sleeve 16, no arcing phenomenon will occur between the female conductive pins 117 inside the plug cavity 17. Therefore, the spacing between adjacent female conductive pins 117 can be very small, thereby minimizing the overall width of the product compared to conventional structures. In this embodiment, a foolproof protrusion 18 is fixedly provided at the bottom of the plug cavity 17, which serves as a direction indicator and prevents the male plug from being inserted backwards, thus preventing accidents. In this embodiment, two parallel protrusions 18 are arranged in an arc-shaped protrusion structure. In specific implementation, one, three or more protrusions can also be provided. The specific number is not limited. The shape and position of the foolproof protrusion 18 can also be specifically set according to actual needs. The shape and position of the anti-fooling groove 26 on the bottom surface of the male connector 210 are set opposite to the shape and position of the anti-fooling protrusion 18, which can ensure that the anti-fooling protrusion 18 can be smoothly inserted into the anti-fooling groove 26.

[0083] In this embodiment, a buckle 13 is fixedly provided on the bottom surface of the female head shell 11. When in use, the buckle 13 can be snapped onto the circuit board, and the present invention can be assisted in being fixed by the buckle 13.

[0084] In this embodiment, two latches 13 are provided, symmetrically arranged at the bottom of the female connector housing 11. In specific implementation, one or more latches 13 can be provided, as long as they can be used to snap the female connector onto the circuit board. In this embodiment, the latch 13 includes a latch foot 111 and an auxiliary foot 112. A snap connector 114 is fixedly provided at the bottom end of the latch foot 111. For ease of processing and installation, in this embodiment, the cross-section of the latch foot 111 is arc-shaped, and the cross-section of the auxiliary foot 112 is also arc-shaped. There is a through groove 113 between the latch foot 111 and the auxiliary foot 112. In use, the latch foot 111 is deformed into the through groove 113 by the compression of the snap connector 114, so that it can be smoothly snapped onto the circuit board. After being snapped in, the limiting effect of the snap connector 114 can prevent the female connector from falling off the circuit board. In specific implementation, snap-fit ​​connectors can also be set on the auxiliary foot 112 to make the snap-fit ​​13 form a symmetrical structure. Compared with the structure of a single-sided snap-fit ​​connector 114, snap-fit ​​connectors 114 are set on both sides, which is relatively more difficult to install. Alternatively, snap-fit ​​connectors 114 can be not set on either side. Or, snap-fit ​​13 with a simple columnar structure such as a cylinder, square column, triangular column, strip column, or irregular column can be used. It only has an auxiliary positioning function and does not have a snap-fit ​​fixing function.

[0085] In this embodiment, a protective cover 12 is provided at the rear end of the female connector housing 11. The protective cover 12 is integrally formed with the female connector housing 11 and is functionally distinguished as a protective cover. It is used to cover the rear end of the female connector conductive pin 117 to prevent accidental contact with the female connector conductive pin 117 and potential danger. In this embodiment, one or more insulating sheets 14 are provided inside the protective cover 12 to isolate the rear end of the female connector conductive pin 117, so that no arcing occurs between the rear ends of the female connector conductive pin 117. Preferably, the insulating sheets 14 are arranged parallel to the left and right side plates of the protective cover 12.

[0086] In this embodiment, the insulating sheet 14 extends towards the bottom of the female connector housing 11 to form an auxiliary positioning part 15. During installation, the auxiliary positioning part 15 can be inserted into the circuit board to provide auxiliary positioning. In this embodiment, the bottom end face of the auxiliary positioning part 15 is lower than the bottom end face of the female connector conductive pin 117. That is, after installation, the auxiliary positioning part 15 can completely cover the soldering end of the female connector conductive pin 117, and at the same time, it can also cover the solder pad and solder joint, preventing arcing at the location of the female connector conductive pin 117 and the solder pad, thus preventing danger.

[0087] In this embodiment, the top surface of the protective cover 12 is provided with female pin markings 19, which can be used to conveniently identify the function of each female conductive pin 117, so that it will not be connected incorrectly when wiring.

[0088] In this embodiment, the structure of the female socket 1 and male plug 2 used in a 220V AC mains power supply is described in detail. In specific implementation, the female socket structure of this utility model can also be applied to other structures, such as three-phase electrical connectors. In this embodiment, three female conductive pins 117 are provided, which are used to connect the live wire (L), neutral wire (N), and ground wire (E) respectively. Correspondingly, three female conductive pin sleeves 16 are also provided, with one female conductive pin 117 inserted in each sleeve. The three female conductive pin sleeves 16 are arranged side by side, with the female conductive pins 117 at both ends being the live wire (L) and neutral wire (N) respectively, and the female conductive pin 117 in the middle being the ground wire (E). Corresponding female pin markings 19 are provided on the top surface of the protective cover 12. In this embodiment, two insulating sheets 14 are provided. In specific implementation, the female conductive pin sleeves 16, insulating sheets 14, and female pin markings 19 are specifically set according to the number and function of the female conductive pins 117 used. In this invention, the three female conductive pin sleeves 16 are arranged in a straight line side by side, which effectively reduces the overall height of the product. Correspondingly, three male conductive pins 29 are also provided, used to connect the live wire (L), neutral wire (N), and ground wire (E) respectively. Three male conductive pin cavities 25 are also provided accordingly, arranged side by side. The male conductive pins 29 at both ends are for the live wire (L) and neutral wire (N), respectively, and the middle male conductive pin 29 is for the ground wire (E).

[0089] In this embodiment, the female conductive pin 117 is made of copper. In actual implementation, it can also be made of aluminum or alloy or other metal materials that can be used in electrical connectors, depending on actual needs.

[0090] In this embodiment, the female conductive pin 117 is generally L-shaped, with one end defined as the female plug-in end 118 and the other end defined as the female soldering end 119. The female conductive pin 117 is an integral structure. The female plug-in end 118 and the female soldering end 119 are only defined according to their functions. The female plug-in end 118 is inserted into the female conductive pin sleeve 16 for connecting with the male plug. The female conductive pin 117 is bent toward the bottom surface of the female outer shell 11 to form the female soldering end 119 for soldering together with the circuit board.

[0091] In this embodiment, the female connector 118 has a crown spring receiving cavity 124 inside, and a crown spring 120 is inserted into the crown spring receiving cavity 124. The crown spring 120 is a separate component independent of the female connector conductive pin 117. The crown spring 120 is generally drum-shaped, that is, it is thinner in the middle and thicker at both ends. When the male connector 2 is inserted, the male connector conductive pin 29 can squeeze the crown spring 120 to deform it, thereby ensuring a tighter connection between the male connector conductive pin 29 in the male connector 2 and the female connector socket, ensuring its electrical connection effect. In this embodiment, the crown spring 120 is made of copper sheets with a grid structure wound together, that is, the crown spring 120 includes copper sheets and strip grooves arranged at intervals. In use, the male connector can push the copper sheets on the crown spring 120 to deform it. In this embodiment, the female conductive needle sleeve 16 is provided with a plug hole 115 at its front end for plugging into the conductive structure in the male plug. A blocking step 116 is provided around the plug hole 115 so that the diameter of the plug hole 115 matches the inner diameter of the crown spring 120. Preferably, the diameter of the plug hole 115 is equal to, slightly smaller than, or slightly larger than the inner diameter of the crown spring 120, but smaller than the outer diameter of the crown spring 120. The blocking step 116 can block the crown spring 120 so that the male plug will not be pulled out along with the crown spring 120 when it is pulled out.

[0092] In this embodiment, a female head limiting step 122 is provided in the crown spring receiving cavity 124. After the crown spring 120 is inserted into the crown spring receiving cavity 124, it can be locked at the female head limiting step 122 to prevent the crown spring 120 from being pushed inward during the insertion of the male head plug.

[0093] In this embodiment, a fixing protrusion 121 is provided on the outer surface of the female conductive pin 117. When the female conductive pin 117 is inserted into the female conductive pin sleeve 16, it can be engaged within the female conductive pin sleeve 16 by the fixing protrusion 121, preventing the female conductive pin 117 from being pushed out of the female conductive pin sleeve 16 by the male plug during insertion. In this embodiment, an anti-retraction step 123 is provided at the end of the fixing protrusion 121 near the tail of the female conductive pin 117. The end face of the anti-retraction step 123 is perpendicular to the central axis of the female conductive pin 117, which can improve its anti-retraction effect. In this embodiment, two fixing protrusions 121 are provided. In specific implementations, one or more fixing protrusions 121 can also be used. In this embodiment, the fixing protrusion 121 structure is preferably used to fix the female conductive pin 117 and the female conductive pin sleeve 16. In specific implementations, other fixing structures, such as fixing buckles, can also be used for fixing.

[0094] In use, the male plug 2 is aligned with the female socket 1. Due to the foolproof structure on both the male plug 2 and the female socket 1, it cannot be inserted backwards. During insertion, the two sides of the insertion cavity 17 on the female socket 1 press against the elastic clip 22 on the male plug 2, causing it to deform. When the male plug 2 is fully inserted into the female socket 1, the elastic clip 22 springs up under its own elastic force, and the locking edge 23 on the elastic clip 22 engages with the engaging protrusion 110 in the insertion cavity 17, thus locking it in place. At this time, the male plug 2 cannot be loosened or pulled out of the female socket 1. When it is necessary to remove the male plug 2, pinch the unlocking plate 24 with your fingers to squeeze the elastic clip 22, so that the elastic clip 22 is tightly attached to the male plug 210, causing the locking edge 23 to disengage from the engaging protrusion 110. At the same time, pull the male plug 2 outwards to remove it.

[0095] The electrical connector structure in the above embodiments is mainly used in 220V high-voltage AC mains power. In specific implementations, the structure of this utility model can also be applied to other connector structures.

[0096] This invention features a flexible, clip-on locking structure in the male plug, effectively preventing loosening and poor contact after insertion into the female socket. The conductive pins in both the male plug and female socket are housed inside a rubber shell, ensuring safety and eliminating the risk of electric shock by preventing user contact with the pins. Furthermore, the conductive pins in both the male plug and female socket are coated with rubber to prevent arcing. The male plug and female socket also incorporate a foolproof design to prevent reverse insertion.

Claims

1. A male plug for an electrical connector, characterized in that: The male plug includes a male plug housing (21) and a male plug conductive pin (29). There is one or more male plug conductive pins (29), which are respectively embedded in the male plug housing (21). The male plug housing (21) is provided with an elastic card (22) and an unlocking pressure plate (24). One end of the elastic card (22) is fixedly connected to the front end of the male plug housing (21), and the other end extends toward the rear end of the male plug housing (21) to form a free end. The unlocking pressure plate (24) corresponds to the outside of the free end. The elastic card (22) is provided with a locking edge (23) that can be engaged with the female plug socket when in use.

2. The male connector plug according to claim 1, characterized in that: The locking edge (23) includes a guide inclined surface and a locking contact surface. In the direction from the front end to the rear end of the male head shell (21), the guide inclined surface and the locking contact surface are connected in sequence, and the distance between the guide inclined surface and the elastic card (22) gradually increases.

3. The male connector plug according to claim 1, characterized in that: The front end of the male connector shell (21) extends forward and is provided with a male connector plug (210), which is integrally formed with the male connector shell (21).

4. The male connector plug according to claim 3, characterized in that: The male connector (210) has a male conductive pin cavity (25) inside, and there is one or more male conductive pin cavities (25), with one male conductive pin (29) disposed in each male conductive pin cavity (25); and / or, One or more male conductive needle cavities (25) are arranged in a straight line.

5. The male connector plug according to claim 3, characterized in that: The male connector (210) is provided with a foolproof groove (26) on its bottom surface; and / or, The male connector (210) has male pin markings (28) on its bottom surface; and / or, The male connector (210) has a direction mark (27) on its top surface.

6. The male connector plug according to claim 1, characterized in that: The male conductive pin (29) is fixedly embedded in the male outer shell (21). A male limiting step (213) is provided at the middle position of the male conductive pin (29). The front end of the male limiting step (213) is the male plug-in end (211), and the rear end of the male limiting step (213) is the male welding end (212).

7. The male connector plug according to claim 1, characterized in that: The male conductive pin (29) is made of copper; and / or, The male head shell (21) is made of plastic.

8. An electrical connector, characterized in that: The electrical connector includes a female socket (1) and a male plug (2) as described in any one of claims 1 to 7. In use, the male plug (2) is inserted into the female socket (1).

9. The electrical connector according to claim 8, characterized in that: The female connector includes a female connector housing (11) and a female connector conductive pin (117). There is one or more female connector conductive pins (117), which are respectively embedded in the female connector housing (11). A plug-in cavity (17) is formed inside the female connector housing (11). The opening of the plug-in cavity (17) is located on the front end face of the female connector housing (11). A snap-fit ​​protrusion (110) is fixedly provided inside the plug-in cavity (17). When the male connector is inserted, the locking snap-fit ​​edge (23) on the male connector can lock the snap-fit ​​protrusion (110).

10. The electrical connector according to claim 9, characterized in that: The insertion cavity (17) is fixedly provided with one or more female conductive needle sleeves (16), and each female conductive needle sleeve (16) is fitted with a female conductive needle (117); and / or, The bottom of the insertion cavity (17) is fixedly provided with a foolproof protrusion (18); and / or, A buckle (13) is fixedly provided on the bottom surface of the female head shell (11); and / or, The aforementioned latches (13) are provided in two parts, and the two latches (13) are symmetrically arranged at the bottom of the female head shell (11); and / or, The buckle (13) includes a buckle foot (111) and an auxiliary foot (112). A buckle connector (114) is fixedly provided at the bottom end of the buckle foot (111). A through groove (113) is formed between the buckle foot (111) and the auxiliary foot (112); and / or, The female head shell (11) is provided with a protective cover (12) at its rear end, and the protective cover (12) is integrally formed with the female head shell (11); and / or, The protective cover (12) is provided with one or more insulating sheets (14) inside; and / or, The insulating sheet (14) is arranged parallel to the left and right side plates of the protective cover (12). The insulating sheet (14) extends towards the bottom of the female head shell (11) to form an auxiliary positioning part (15); and / or, The top surface of the protective cover (12) is provided with female pin markings (19); and / or, The female conductive pin (117) is made of copper; and / or, The female conductive pin (117) is generally L-shaped, with one end being a female plug-in end (118) and the other end being a female solder end (119). The female plug-in end (118) is inserted into the female conductive pin sleeve (16), and the female conductive pin (117) is bent toward the bottom surface of the female outer shell (11) to form the female solder end (119); and / or, The female connector (118) has a crown spring receiving cavity (124) inside, and a crown spring (120) is inserted into the crown spring receiving cavity (124); and / or, The crown spring (120) is generally drum-shaped; and / or, The female conductive needle sleeve (16) is provided with a insertion hole (115) at its front end, and a sealing step (116) is provided around the insertion hole (115); and / or, The crown spring receiving cavity (124) is provided with a female head limiting step (122); and / or, A fixing protrusion (121) is provided on the outer surface of the female conductive pin (117); and / or, The fixed protruding ring (121) is provided with an anti-retraction step (123) at one end near the tail of the female conductive pin (117), and the end face of the anti-retraction step (123) is perpendicular to the central axis of the female conductive pin (117); and / or, The fixed protruding ring (121) is provided with two rings.

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