A zero-fire connection structure and a safety socket
Patent Information
- Application Number
- CN202522281340.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]直接通过金属夹片对插片进行的夹持,主要存在易漏电触电的风险,如何能够确保插头在插入后才能得到零火线的电气导通,是需要考虑的安全问题
[0015]通过设置的开关弹片,能够在插片插接于接电插套的基础上,实现额外的接电结构,结合机械联动结构以及电气接通结构的配合,能够在插片与接电插套电气连通的基础上,赋予了接电结构的同时导通,进而能够确保插座的安全使用。
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Figure CN224789985U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of socket equipment technology, and more specifically, to a neutral and live wire connection structure and a safety socket. Background Technology
[0002] In existing socket devices, it is common to simply clamp the plug prongs with metal clips, without setting up an additional power connection structure to connect the live and neutral wires.
[0003] The main risk of electric shock is the direct clamping of the plug with metal clips. How to ensure that the plug can obtain electrical continuity with the live and neutral wires after insertion is a safety issue that needs to be considered. Utility Model Content
[0004] The purpose of this application is to provide a neutral and live wire connection structure and a safety socket. Through the additional power connection structure, combined with the mechanical linkage structure and the electrical connection structure, an effective linkage electrical on / off control effect can be formed to ensure the safety and reliability of the safety socket during use.
[0005] To achieve the above objectives, in a first aspect, this utility model provides a neutral and live wire connection structure for use in a safety socket. The safety socket includes a socket housing and an internal support. The socket housing is provided with socket holes for plug insertion, and each socket hole is provided with a socket slider that can move horizontally. The live and neutral wire connection structure includes a power connector, a switch spring, and a power PCB board. The power connector is fixedly installed in the internal support, and a power connector copper nail extending out of the internal support is provided at the bottom of the power connector. The root of the switch spring is connected to the power connector copper nail, and the end of the spring is bent and installed above the power PCB board. A push rod assembly is provided between the socket slider and the end of the spring piece, and the push rod assembly can press the end of the spring piece downward under the action of the socket slider.
[0006] In an optional embodiment, the internal support includes a support base and a support front cover, the socket includes two sockets and a three-hole socket disposed on the support front cover, and the socket slider includes a corresponding two-hole slider and a three-hole slider.
[0007] In an optional embodiment, the push rod assembly includes two sets, namely a live wire push rod assembly and a neutral wire push rod assembly; The power connection socket includes two sets of power connection sockets and a ground wire power connection socket. The two sets of power connection sockets respectively include a live wire power connection socket and a neutral wire power connection socket.
[0008] In an optional embodiment, the power-connecting PCB board is provided with two live wire silver contacts, two neutral wire silver contacts, three live wire silver contacts, and three neutral wire silver contacts. The ends of the switch springs are respectively riveted to spring silver contacts, and the spring silver contacts are correspondingly set with different silver contacts on the power-connecting PCB board.
[0009] In an optional embodiment, the switch spring includes two sets of switch springs, which respectively include a live wire switch spring and a neutral wire switch spring; The live wire switch spring is connected to the live wire connector pin, and the neutral wire switch spring is connected to the neutral wire connector pin.
[0010] In an optional embodiment, a ground copper sheet is soldered onto the power-connecting PCB board, and the ground copper sheet is riveted to the power-connecting copper stud on the ground power-connecting socket.
[0011] In an optional embodiment, both the switch spring and the power connector are made of phosphor bronze.
[0012] In an optional embodiment, the power connector is provided with a power clip for inserting a plug prong, and the power clip and the power connector are integrally formed.
[0013] In an optional embodiment, a connector sleeve is connected to the power-connecting PCB board, the connector sleeve being used to connect an external power cord and solder it to the power-connecting PCB board.
[0014] Secondly, this utility model provides a safety socket, including the neutral and live wire connection structure described in any of the foregoing embodiments.
[0015] By using a switch spring, an additional electrical connection structure can be achieved on the basis of the plug being inserted into the electrical socket. Combined with the mechanical linkage structure and the electrical connection structure, the electrical connection structure can be made conductive on the basis of the electrical connection between the plug and the electrical socket, thereby ensuring the safe use of the socket.
[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1This is a schematic diagram of the configuration structure of the live and neutral wire connection structure in this application on a safety socket; Figure 2 This is a schematic diagram of the split side view structure of the safety socket in this application; Figure 3 This is a cross-sectional view of the safety socket in this application after assembly.
[0019] icon: 1-Socket housing; 11-Front cover of housing; 12-Rear cover of housing; 2-Internal support; 21-Bottom shell of support; 22-Top cover of support; 23-Electrical connector sleeve; 24-Switch spring; 25-Electrical connector copper nail; 26-Arc-shaped groove; 27-Electrical connector clip; 3-Socket slider; 31-Return spring; 32-Top guide wall; 33-Bottom guide wall; 34-Allowing groove; 4-Push rod assembly; 41-Push rod sleeve; 42-Push rod; 43-Push rod spring; 44-Limiting ring; 45-Engineering step; 46-Abutting arc surface; 5-Isolation assembly; 51-Switch isolation pad; 52-Switch isolation bracket; 53-Arc-shaped raised top edge; 6-Power-connecting PCB board; 61-Ground copper sheet; 62-Connector sleeve. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] The live and neutral wire connection structure in this application mainly achieves electrical conduction between the plug and the live socket 23 through the provided power-connecting sleeve 23 and the switch spring 24. At the same time, it can achieve electrical conduction between the switch spring 24 and the power-connecting PCB board 6 by combining the mechanical linkage structure and the electrical connection structure, thereby enabling power supply under dual effects and meeting the safety requirements of the safety socket.
[0024] See Figure 1 and combined Figures 2-3 The live and neutral wire connection structure of this utility model is applied in a safety socket. The safety socket includes a socket housing 1 and an internal support 2. The socket housing 1 is provided with a plug hole for plug insertion, and each plug hole is provided with a socket slider 3 that can move horizontally.
[0025] The internal support 2 includes a support base shell 21 and a support top cover 22, which are mainly used to form the mounting base for most of the moving parts and electrical components.
[0026] The socket housing 1 includes a front cover 11 and a rear cover 12. The front cover 11 and the rear cover 12 are fastened together by ultrasonic welding, gluing, screws and sealing gaskets to form a sealed housing. It is mainly used to install the internal bracket 2, isolation component 5, switch spring 24, power connection PCB board 6 and wiring sleeve 62, etc.
[0027] The live and neutral wire connection structure includes a power connector 23, a switch spring 24, and a power connector PCB board 6. The power connector 23 is fixedly installed in the internal support 2, and a power connector copper nail 25 extending out of the internal support 2 is provided at the bottom of the power connector 23. The root of the switch spring 24 is connected to the power connector copper nail 25, and the end of the spring is bent and positioned above the power connector PCB board 6.
[0028] A push rod 42 assembly is provided between the socket slider 3 and the end of the spring contact. The socket slider 3 can move horizontally during plug insertion, and the push rod 42 assembly can press the end of the spring contact downward under the action of the socket slider 3, thereby making the end of the spring contact contact with the power contact point on the power connection PCB board 6.
[0029] The safety socket in this application, from the perspective of core functions, includes a mechanical transmission structure, a switch isolation structure, and an electrical connection structure. The insertion of the plug drives the linkage of the mechanical transmission structure within the internal support 2, ultimately achieving electrical connection. During the insertion of the plug into the safety socket, the user does not need to directly operate any switch, and the plug can automatically disconnect the power and restore the insulation isolation state after being pulled out, effectively preventing electric shock.
[0030] The mechanical transmission structure consists of a socket slider 3 made of insulating material and a push rod assembly 4. The socket slider 3 is slidably mounted in the internal support 2. A return spring 31 is provided between the socket slider 3 and the internal support 2. The return spring 31 is specifically in the form of a compression spring. In the natural state where no plug is inserted, the elastic force of the return spring 31 keeps the socket slider 3 in the outermost initial position.
[0031] The top cover 22 of the inner bracket 2 is provided with a prong hole for the plug prongs to enter. The lower part of the socket slider 3 is provided with a power-connecting sleeve 23, which is fixedly installed in the inner bracket 2. When the plug is inserted, under the action of the plug prongs, combined with the guide part on the socket slider 3, the socket slider 3 overcomes the elastic force of the return spring 31 and moves inward toward the center of the inner bracket 2, thereby providing clearance for the plug prongs to be inserted downward, so that the plug prongs are inserted into the power-connecting clip 27, which is integrally structured with the power-connecting sleeve 23, and realize the electrical connection between the plug prongs and the power-connecting sleeve 23. After the plug is pulled out, the socket slider 3 can be pushed back to the outermost initial position by the elastic force of the return spring 31.
[0032] The push rod assembly 4 has its own reset elasticity, is vertically and vertically arranged on the side of the power connection socket 23, and is also arranged below the socket slider 3, and can move up and down during the translation of the socket slider 3.
[0033] Specifically, in conjunction with the translation process of the socket slider 3 described above, while translating inward, the push rod assembly 4 can move downward under the linkage of the inward translation of the socket slider 3. The bottom of the push rod assembly 4 is provided with an isolation assembly 5 and a switch spring 24. The bottom of the power-connecting socket 23 is provided with a power-connecting copper nail 25. The power-connecting copper nail 25 extends downward and outward from the internal bracket 2. The root of the switch spring 24 is riveted to the power-connecting copper nail 25. The end of the spring is located above the power-connecting PCB board 6. The power-connecting socket 23, the switch spring 24, and the power-connecting PCB board 6 constitute an electrical connection structure.
[0034] When the push rod assembly 4 moves downward, it can press the switch isolation pad 51 of the isolation assembly 5 and the end of the spring of the switch spring 24. The switch spring 24 can bend downward elastically based on the root rivet point, pressing the spring silver contact on the end of the spring into contact with the silver contact of the power-connecting PCB board 6. Combined with the electrical connection state of the plug and the power-connecting socket 23, the circuit of the plug, the power-connecting socket 23, the switch spring 24 and the power-connecting PCB board 6 is connected.
[0035] After the socket slider 3 is moved and reset, the push rod assembly 4 can break free from the downward pressure of the socket slider 3 and perform a lifting action under its own elasticity. At the same time, under the reset elastic force of the switch isolation pad 51 and the switch spring 24, it can rebound upward at the bottom of the push rod assembly 4, thereby disconnecting the contact with the silver contacts on the power-connecting PCB board 6 and disconnecting the power supply. Furthermore, the upward rebound of the switch isolation pad 51 and the switch spring 24 can also lift the push rod assembly 4 to a certain extent, ensuring the elastic reset of the push rod assembly 4.
[0036] As a linkage component of the mechanical transmission structure, the push rod assembly 4 in this application includes a push rod sleeve 41, a push rod 42, a push rod spring 43, and a limiting ring 44. The push rod sleeve 41 is pressed and limited on the lower part of the socket slider 3 and movably sleeved on the push rod 42. The limiting ring 44 is integrally connected to the push rod 42. The push rod spring 43 is disposed between the push rod sleeve 41 and the limiting ring 44.
[0037] The push rod sleeve 41 is made of wear-resistant material and has a circular design to increase smoothness and serve as an intermediate transition piece to transmit the downward pressure applied from the socket slider 3.
[0038] When the push rod 42 is subjected to downward pressure, it passes through the hole in the bracket bottom shell 21 and presses down the switch isolation pad 51 and the end of the switch spring 24, so that the silver contacts make contact and connect the power supply.
[0039] When the socket slider 3 moves inward, it can press the top rod sleeve 41 and make the bottom end of the top rod 42 extend outward from the internal bracket 2, pressing down the switch isolation pad 51 and the end of the spring piece. After the end of the spring piece is elastically bent, it presses the silver contact of the spring piece on the end of the spring piece into contact with the silver contact of the power-connecting PCB board 6, so as to realize the circuit conduction.
[0040] When the socket slider 3 moves outward to reset, it can release the pressure on the push rod sleeve 41, and the bottom end of the push rod 42 can be lifted under the elastic force of the switch spring 24 and the switch isolation pad 51. After the spring end and the switch isolation pad 51 are elastically reset, the spring silver contact on the spring end will disengage from the contact of the silver contact on the power-connecting PCB board 6, thereby realizing the circuit power-off.
[0041] The push rod spring 43, positioned between the push rod sleeve 41 and the limiting ring 44, provides good cushioning. When a standard plug is inserted, i.e., when the downward stroke of the socket slider 3 matches the stroke required by the push rod 42 to trigger the switch spring 24, the push rod spring 43 is compressed within a suitable range. The push rod sleeve 41 is provided with an engineering step 45, and both ends of the push rod spring 43 abut against the engineering step 45 and the limiting ring 44.
[0042] During normal operation, regardless of whether a plug is inserted, the bottom end of the push rod 42 can always abut against the switch isolation pad 51 to ensure that the push rod 42 can directly apply the action stroke to the switch isolation pad 51 and the switch spring 24 when it is pressed down, thereby ensuring direct and efficient action linkage.
[0043] After the push rod assembly 4 is freed from the downward pressure of the socket slider 3, the push rod 42 can be lifted by the rebound force of the switch spring 24. At the same time, in order to ensure the reliable lifting of the push rod 42, the switch isolation pad 51 in this application also maintains the arc-shaped protrusion rebound force under normal conditions, which can effectively ensure reliable power disconnection through the dual rebound force of the switch spring 24 and the switch isolation pad 51.
[0044] As described above, by inserting or removing the plug, combined with the guide part on the socket slider 3, the socket slider 3 can be moved at an angle. The guide part includes a top guide wall 32 in the form of an inclined wall at the top of the socket slider 3. The top guide wall 32 can be abutted by the inserted plug prongs and guide the socket slider 3 to move towards the center of the bracket when the plug prongs are inserted.
[0045] In order to reduce the angle at which the translation of the socket slider 3 can press down on the top rod sleeve 41, the socket slider 3 also includes a bottom guide wall 33 in the form of an inclined wall at the bottom of the socket slider 3, and the top rod sleeve 41 can move down along the bottom guide wall 33 during the translation of the socket slider 3.
[0046] Specifically, the top guide wall 32 and the bottom guide wall 33 are inclined in the same direction, and the top guide wall 32 and the bottom guide wall 33 are inclined from top to bottom and outward relative to the insertion direction of the plug prong, so that the socket slider 3 can maintain downward pressure on the top rod assembly 4 during the process of moving towards the middle of the bracket.
[0047] Based on the above-mentioned installation configuration of the top and bottom ends of the push rod 42, in order to provide space for the installation of the push rod 42 and enable the socket slider 3 to perform translational movement, a clearance groove 34 for avoiding the push rod 42 is provided on the socket slider 3. The clearance groove 34 includes a vertical cut groove opened in the center of the bottom guide wall 33. This configuration allows the push rod 42 to be vertically and flexibly accommodated in the clearance groove 34, while allowing the push rod sleeve 41 to slide at the upper limit on both sides of the bottom guide wall 33 of the clearance groove 34, maintaining the downward pressure relationship on the push rod 42.
[0048] The electric shock protection safety socket in this application includes a two-hole socket and a three-hole socket, and the socket slider 3 includes a corresponding two-hole slider 3a and a three-hole slider 3b.
[0049] The push rod assembly 4 includes two sets of push rod assemblies 4, each including a live wire push rod 42 assembly and a neutral wire push rod 42 assembly. The power connection socket 23 includes two sets of power connection sockets 23 and a ground wire power connection socket 23, each including a live wire power connection socket 23 and a neutral wire power connection socket 23.
[0050] Specifically, the two-hole sockets correspond to a live wire connection socket 23 and a neutral wire connection socket 23, and the live wire connection socket 23 and the neutral wire connection socket 23 correspond to the live wire push rod 42 assembly and the neutral wire push rod 42 assembly, respectively.
[0051] The three-hole socket corresponds to a live wire connection socket 23, a neutral wire connection socket 23 and a ground wire connection socket 23. The live wire connection socket 23 and the neutral wire connection socket 23 correspond to the live wire push rod 42 assembly and the neutral wire push rod 42 assembly, respectively.
[0052] The switch spring 24 includes two sets of switch springs 24, namely a live wire switch spring 24 and a neutral wire switch spring 24. The live wire connection socket 23, the live wire push rod 42 assembly and the live wire switch spring 24 are correspondingly arranged. The neutral wire connection socket 23, the neutral wire push rod 42 assembly and the neutral wire switch spring 24 are correspondingly arranged.
[0053] The switch spring 24 is made of high phosphor bronze and has riveted silver contacts. It contacts and separates from the silver contacts on the PCB to connect or disconnect the power supply to the electrical socket 23. Each switch spring 24 corresponds to a neutral or live wire socket.
[0054] The power socket 23 is made of high phosphor bronze. When the plug is inserted, the plug prongs and the power clips 27 of the power socket 23 are in close contact to connect the circuit between the socket and the plug.
[0055] Each power socket 23 has a cylindrical power-connecting copper nail 25 at its bottom. The power-connecting copper nail 25 passes through a round hole on the bracket base 21 and is connected to the root of the switch spring 24 by riveting. At the same time, it clamps the round hole on the bracket base 21. The power-connecting copper nail 25 and the round hole on the bracket base 21 are also tightly configured to provide waterproofing and prevent liquid from entering the socket cavity.
[0056] Correspondingly, the power-connecting PCB board 6 is provided with two live wire silver contacts, two neutral wire silver contacts, three live wire silver contacts, and three neutral wire silver contacts. The ends of the switch springs 24 are respectively riveted to spring silver contacts, and the spring silver contacts are set to correspond to the different silver contacts on the power-connecting PCB board 6.
[0057] A ground copper plate 61 is soldered onto the power-connecting PCB board 6. The ground copper plate 61 is riveted to the power-connecting copper pin 25 on the ground power-connecting socket 23, so that the ground wire is in a normal connected state and the connection of the socket ground wire is stable.
[0058] Through the cooperation of the above-mentioned mechanical linkage structure and electrical connection structure, an effective linkage electrical on / off control effect can be formed to ensure the safety and reliability of the safety socket during use.
[0059] The socket slider 3 includes a two-hole slider 3a corresponding to the two-hole socket. The two-hole slider 3a includes a connecting plate located in the middle. The top guide wall 32 and the bottom guide wall 33 include two sets disposed on both sides of the connecting plate. The two sets of top guide walls 32 and bottom guide walls 33 are respectively corresponding to the plug prongs of the two-hole socket, the live wire push rod 42 assembly and the neutral wire push rod 42 assembly.
[0060] Specifically, the top guide wall 32 can simultaneously abut and cooperate with the prongs of the two-hole plug, and the bottom guide wall 33 can simultaneously allow the push rod sleeve 41 of the live wire push rod 42 assembly and the neutral wire push rod 42 assembly to slide together.
[0061] The two ends of the return spring 31 abut against the connecting plate and the internal bracket 2, and can control the two hole sliders 3a to move during the plug insertion and removal process.
[0062] The two-hole slider 3a acts as a safety baffle to prevent small objects from entering the socket. When the switch activates the socket slider 3 and the plug is inserted, the two metal prongs of the plug (live and neutral wires) will push the socket slider 3 to move. The bottom guide wall 33 on the socket slider 3 will simultaneously press down the two sets of push rod assemblies 4. The push rod 42 passes through the through hole on the bracket bottom shell 21 and pushes against the switch isolation pad 51 and the switch spring 24, so that the silver contact on the end of the spring contacts the silver contact on the PCB board, thereby achieving the purpose of connecting the power supply.
[0063] When the plug is unplugged, the return spring 31 pushes the socket slider 3 back, and at the same time, the push rod assembly 4 rises under the elastic action of the switch isolation pad 51, and the switch spring 24 also springs back to its original position, thereby breaking the contact with the silver contacts on the PCB and disconnecting the power supply.
[0064] The socket slider 3 also includes a three-hole slider 3b corresponding to the three-hole socket, the top guide wall 32 includes a set corresponding to the ground wire plug, and the bottom guide wall 33 includes two sets corresponding to the neutral wire and the live wire respectively. Specifically, one set of top guide walls 32 is corresponding to the ground wire plug of the three-hole plug, and the two sets of bottom guide walls 33 are corresponding to the live wire push rod 42 assembly and the neutral wire push rod 42 assembly respectively.
[0065] The top guide wall 32 can abut against the grounding plug of the three-hole plug, and the bottom guide wall 33 can simultaneously allow the push rod sleeve 41 of the live wire push rod 42 assembly and the neutral wire push rod 42 assembly to slide.
[0066] The two ends of the return spring 31 abut against the three-hole slider 3b and the internal support 2, and can control the three-hole slider 3b to move during the plug insertion and removal process.
[0067] The three-hole slider 3b also acts as a safety baffle, preventing small objects from entering the socket. When the switch activates the socket slider 3, and the three-prong plug is inserted, the metal prong of the plug's ground wire pushes the socket slider 3 to move. The bottom guide wall 33 on the socket slider 3 simultaneously presses down two sets of push rod assemblies 4. The push rod 42 passes through the through hole on the bracket bottom shell 21 and pushes against the switch isolation pad 51 and the switch spring 24, thereby making the silver contact at the end of the spring contact with the silver contact on the PCB board, achieving the purpose of connecting the power. When the plug is unplugged, the process of disconnecting the power is the same as that of the two-hole slider 3a.
[0068] Starting from the limiting lifting and moving angle of the push rod assembly 4, in order to ensure that the push rod 42 can be lifted under the rebound force of the switch isolation pad 51, the push rod sleeve 41 and the push rod 42 are fitted with a clearance. The top end of the push rod 42 extends out of the push rod sleeve 41 and is limited to pass through the relief groove 34 of the socket slider 3. At the same time, the top end of the push rod 42 is limited to pass through the limiting hole on the bracket top cover 22, which can effectively prevent the push rod 42 from deviating during lifting and lowering.
[0069] Based on the fact that the switch isolating pad 51 has an arc-shaped protrusion towards the bottom end of the push rod 42 in its normal elastic state without pressure, in order to ensure that the push rod 42 can maintain a reliable contact with the switch isolating pad 51, the bottom end of the push rod 42 includes an abutting arc surface 46, the abutting arc surface 46 abuts against the top of the switch isolating pad 51, the switch isolating pad 51 includes an elastic gasket made of silicone rubber, and an arc-shaped groove 26 is provided on the bottom wall of the bracket base 21.
[0070] Specifically, the switch isolation pad 51 is cut from a high-temperature resistant silicone rubber sheet and installed in the arc-shaped groove 26 on the bottom wall of the bracket base 21. The isolation assembly 5 also includes a switch isolation frame 52 made of fireproof material, which is located at the bottom of the internal bracket 2. The top of the switch isolation frame 52 is provided with an arc-shaped protruding top edge 53.
[0071] The switch isolation pad 51 cooperates with the same raised top edge on the switch isolation bracket 52, which can bend the originally flat switch isolation pad 51 into an arc shape, increasing the positive rebound function of the silicone pad and facilitating switch reset.
[0072] Cutting the original sheet maintains the original stability of the high-temperature resistant silicone rubber material, avoids damage to the material properties caused by secondary hot-melt molding, and extends the service life of the parts.
[0073] For deformed installations with curved protrusions, the elasticity of the soft rubber material has been enhanced to ensure that it can still return to its normal position after long-term use.
[0074] The switch isolation pad 51 is pressed between the arc-shaped groove 26 and the arc-shaped protrusion top edge 53, which can maintain the arc-shaped protrusion state of the switch isolation pad 51 in the pressed state. After the switch isolation pad 51 is pressed, it plays a waterproof role, ensuring that liquids and dust cannot enter the inner cavity of the socket internal bracket 2, and ensuring the normal operation and service life of the internal switch and electronic components.
[0075] This utility model also provides a safety socket, including the neutral and live wire connection structure described above. Through the cooperation of the mechanical linkage structure and the electrical connection structure, it can realize the simultaneous conduction of different power connection structures, thereby ensuring the safe use of the socket.
[0076] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A neutral and live wire connection structure, used in a safety socket, characterized in that, The safety socket includes a socket housing and an internal support. The socket housing is provided with socket holes for plug insertion, and each socket hole is provided with a socket slider that can move horizontally. The live and neutral wire connection structure includes a power connector, a switch spring, and a power PCB board. The power connector is fixedly installed in the internal support, and a power connector copper nail extending out of the internal support is provided at the bottom of the power connector. The root of the switch spring is connected to the power connector copper nail, and the end of the spring is bent and installed above the power PCB board. A push rod assembly is provided between the socket slider and the end of the spring piece, and the push rod assembly can press the end of the spring piece downward under the action of the socket slider.
2. The neutral-live wire connection structure according to claim 1, characterized in that, The internal support includes a support base and a support front cover. The socket includes two sockets and a three-hole socket provided on the support front cover. The socket slider includes a two-hole slider and a three-hole slider provided accordingly.
3. The neutral-live wire connection structure according to claim 1, characterized in that, The push rod assembly includes two sets, namely a live wire push rod assembly and a neutral wire push rod assembly; The power connection socket includes two sets of power connection sockets and a ground wire power connection socket. The two sets of power connection sockets respectively include a live wire power connection socket and a neutral wire power connection socket.
4. The neutral-live wire connection structure according to claim 3, characterized in that, The power-connecting PCB board is provided with two live wire silver contacts, two neutral wire silver contacts, three live wire silver contacts, and three neutral wire silver contacts. The ends of the switch springs are respectively riveted to spring silver contacts, and the spring silver contacts are set to correspond to the different silver contacts on the power-connecting PCB board.
5. The neutral-live wire connection structure according to claim 4, characterized in that, The switch spring includes two sets of switch springs, including a live wire switch spring and a neutral wire switch spring respectively; The live wire switch spring is connected to the live wire connector pin, and the neutral wire switch spring is connected to the neutral wire connector pin.
6. The neutral-live wire connection structure according to claim 4, characterized in that, A ground copper sheet is soldered onto the power-connecting PCB board, and the ground copper sheet is riveted to the power-connecting copper stud on the ground power-connecting socket.
7. The neutral-live wire connection structure according to claim 1, characterized in that, Both the switch spring and the electrical connector are made of phosphor bronze.
8. The neutral-live wire connection structure according to claim 1, characterized in that, The power connector is provided with a power clip for inserting the plug prongs, and the power clip and the power connector are an integral structure.
9. The neutral-live wire connection structure according to claim 1, characterized in that, A connector sleeve is connected to the power-connecting PCB board. The connector sleeve is used to connect an external power cord and solder it to the power-connecting PCB board.
10. A safety socket, characterized in that, The neutral and live wire connection structure includes any one of claims 1-9.