Waterproof and dustproof insulation structure and safety socket

Abstract

The application relates to a waterproof and dustproof insulation structure and a safety socket, wherein the waterproof and dustproof insulation structure is applied to the safety socket; the safety socket comprises a socket shell, an internal support arranged in the socket shell, and a waterproof pad arranged between the internal support and the socket shell; an electricity connection PCB plate and a switch spring are arranged between the internal support and the socket shell; the electricity connection PCB plate and the internal support are provided with an isolation assembly; the isolation assembly comprises a switch isolation frame tightly pressed on the electricity connection PCB plate and a switch isolation pad press-fitted between the switch isolation frame and the internal support. The utility model can seal different parts in the socket, avoid the risk of easy aging caused by long-term exposure, can be fixed in a press-fitted state, and reduces the influence of a connecting piece on a sealing structure.

Description

Technical Field

[0001] This application relates to the field of socket equipment technology, and more specifically, to a waterproof and dustproof insulating structure and a safety socket. Background Technology

[0002] In existing socket devices, especially the waterproof and dustproof structures located on the outside of the socket, the sealing rings will age and fail more quickly due to long-term exposure.

[0003] Meanwhile, since some sealing structures require fastening structures for fixation, under long-term pressure on the connecting parts, the sealing ring is unevenly compressed, and gaps may appear in some parts. The sealing ring may also be unable to restore its elasticity and become inadequately sealed. Utility Model Content

[0004] The purpose of this application is to provide a waterproof and dustproof insulating structure and a safety socket, which can seal different parts inside the socket to avoid the risk of aging due to long-term exposure, and can be fixed in a press-fit state to reduce the impact of connectors on the sealing structure.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a waterproof and dustproof insulating structure for use in a safety socket. The safety socket includes a socket housing and an internal support disposed within the socket housing. A waterproof pad is provided between the internal support and the socket housing. A power-connecting PCB board and a switch spring are provided between the internal support and the socket housing. The power-connecting PCB board and the switch spring are located at the lower part of the internal support. A power-connecting sleeve is fixedly installed in the internal support. A power-connecting copper nail extending outward from the internal support is provided at the bottom of the power-connecting sleeve. The root of the switch spring is connected to the power-connecting copper nail, and the end of the spring is flexibly located above the power-connecting PCB board. The power-connecting PCB board and the internal support are provided with an isolation component. The isolation component includes a switch isolation frame that is pressed tightly against the power-connecting PCB board and a switch isolation pad that is pressed between the switch isolation frame and the internal support.

[0006] In an optional embodiment, the socket housing includes a front cover and a rear cover, the internal bracket includes a bottom cover and a top cover, and the waterproof pad includes a front waterproof pad disposed between the front cover and the top cover.

[0007] In an optional embodiment, the waterproof pad further includes a rear waterproof pad disposed between the power-connecting PCB board and the housing back cover.

[0008] In an optional embodiment, a raised shell is provided on the rear cover of the housing, and a wiring sleeve for connecting an external power cord is installed inside the raised shell. The rear waterproof pad is clamped between the power-connecting PCB board and the raised shell.

[0009] In an optional embodiment, the raised shell is provided with a connection port for an external power cord to pass through, and a safety cover is detachably connected to the connection port.

[0010] In an optional embodiment, the top cover of the bracket is provided with a plug hole for inserting a plug prong, and the internal bracket is provided with a movable socket slider, which is correspondingly arranged with the plug hole.

[0011] In an optional embodiment, a linkage component is provided at the bottom of the socket slider. The linkage component is located above the switch spring and can move up and down during the translation of the socket slider. The switch isolation pad is disposed between the linkage component and the switch spring.

[0012] In an optional embodiment, the switch isolation pad includes an elastic gasket made of silicone rubber, an arc-shaped groove is provided on the bottom wall of the bracket base, an arc-shaped raised top edge is provided on the top of the switch isolation frame, and the switch isolation pad is press-fitted between the arc-shaped groove and the arc-shaped raised top edge.

[0013] In an optional embodiment, the switch spring includes multiple springs, the switch isolation frame includes multiple compartments, and the spring ends of the switch springs are correspondingly disposed in different compartments.

[0014] Secondly, this utility model provides a safety socket, including the waterproof and dustproof insulation structure described in any of the foregoing embodiments.

[0015] By placing a waterproof gasket between the internal support and the socket housing, the waterproof gasket can be installed inside the socket, avoiding the risk of aging caused by exposure. Furthermore, after different socket structures are assembled, the waterproof gasket can be flatly pressed between the internal support and the socket housing, reducing the need for joints to penetrate the sealing structure and effectively preventing deformation caused by uneven compression.

[0016] The isolation component installed between the power-connecting PCB board and the internal support can effectively form electrical isolation between the mechanical linkage mechanism and the electrical connection mechanism inside the socket.

[0017] By press-fitting the switch isolation pad between the switch isolation frame and the internal support, liquids and dust can be effectively prevented from entering the inner cavity of the internal support, ensuring the normal operation and service life of the internal switches and electronic components.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the configuration of the waterproof and dustproof insulation structure of 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.

[0021] icon: 1-Socket housing; 11-Front cover of housing; 12-Rear cover of housing; 13-Front waterproof gasket; 14-Rear waterproof gasket; 15-Protruding shell; 16-Connection port; 17-Safety cover; 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-Linkage assembly; 41-Push rod sleeve; 42-Push rod; 43-Push rod spring; 44-Limit 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-Terminal sleeve; 63-Screw. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] The waterproof and dustproof insulation structure in this application can effectively prevent water and dust from entering the safety socket, reduce the aging rate, and ensure a flat and press-fitted installation after different socket structures are assembled, avoiding the risk of deformation that can be easily caused by fastening with connectors.

[0026] See Figure 1 and combined Figures 2-3 The waterproof and dustproof insulation structure of this utility model is applied to a safety socket. The safety socket includes a socket housing 1 and an internal support 2 disposed in the socket housing 1.

[0027] The waterproof and dustproof insulation structure specifically includes a front waterproof pad 13, a rear waterproof pad 14, a safety cover 17, and a switch isolation pad 51.

[0028] 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.

[0029] 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.

[0030] From the perspective of ensuring sealing and safety, a front waterproof gasket 13 is provided between the front cover 11 of the housing and the bracket top cover 22 of the internal bracket 2. The front waterproof gasket 13 is installed on the bracket top cover 22 to prevent liquids and dust from entering the socket box.

[0031] Specifically, the front waterproof gasket 13 includes an annular sealing gasket structure, which is pressed between the inner side wall of the front cover 11 of the housing and the outer side wall of the top cover 22 of the bracket, and can seal the gap between the front cover 11 of the housing and the top cover 22 of the bracket, effectively forming a waterproof barrier.

[0032] A rear waterproof pad 14 is provided between the back cover 12 of the housing and the power connection PCB board 6. The rear waterproof pad 14 can effectively waterproof the back side of the socket housing 1.

[0033] Specifically, a raised shell 15 is provided on the back cover 12 of the housing, and a wiring sleeve 62 for connecting an external power cord is welded on the back side of the power PCB board 6. The wiring sleeve 62 is located inside the raised shell 15, and the rear waterproof pad 14 is clamped between the power PCB board 6 and the raised shell 15 to prevent liquid on the back of the socket from entering the socket through the wiring port 16.

[0034] A connection port 16 for an external power cord to pass through is provided on the raised housing 15, and a safety cover 17 is detachably connected to the connection port 16. After the external power cord is locked, the safety cover 17 is closed to prevent accidental contact by hand and to prevent the socket from coming into contact with other conductive objects in the wall when it is inserted into the wall, thereby avoiding the risk of leakage or electric shock.

[0035] 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.

[0036] The mechanical transmission structure consists of a socket slider 3 made of insulating material and a linkage component 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 causes the socket slider 3 to return to its initial position on the outermost side.

[0037] A power-connecting PCB board 6 and a switch spring 24 are provided between the internal support 2 and the socket housing 1. The power-connecting PCB board 6 and the switch spring 24 are located at the lower part of the internal support 2. A power-connecting sleeve 23 is fixedly installed in the internal support 2. A power-connecting copper nail 25 extending outward from the internal support 2 is provided at the bottom of the power-connecting sleeve 23. The root of the switch spring 24 is connected to the power-connecting copper nail 25, and the end of the spring is bent and located above the power-connecting PCB board 6.

[0038] An isolation component 5 is provided between the power-connecting PCB board 6 and the internal support 2. The isolation component 5 includes a switch isolation frame 52 pressed tightly on the power-connecting PCB board 6, and a switch isolation pad 51 pressed between the switch isolation frame 52 and the internal support 2.

[0039] Specifically, the power connection sleeve 23 is located on the lower side of the socket slider 3, and the top cover 22 of the internal bracket 2 is provided with a plug hole for the plug prong to enter. The socket slider 3 is configured to correspond to the plug hole.

[0040] When the plug is inserted, the plug prongs, in conjunction with the inclined guide wall 32 at the top of the socket slider 3, allow the socket slider 3 to overcome the elastic force of the return spring 31 and move inward toward the center of the inner bracket 2. This provides clearance for the plug prongs to insert downward, allowing them to engage with the contact clip 27 of the contact sleeve 23, thus achieving electrical connection between the plug prongs and the contact sleeve 23. After the plug is removed, the socket slider 3, under the elastic force of the return spring 31, is pushed to return to its initial outermost position.

[0041] The linkage component 4 is vertically and vertically mounted on the side of the power-connecting socket 23 and at the bottom of the socket slider 3, and can move up and down during the translation of the socket slider 3. The switch isolation pad 51 is disposed between the linkage component 4 and the switch spring 24.

[0042] Specifically, in conjunction with the translation process of the socket slider 3 described above, while translating inward, the linkage component 4 can move downward under the linkage action of the socket slider 3 translating inward. The isolation component 5 and the switch spring 24 are located below the linkage component 4. The power socket 23, the switch spring 24 and the power PCB board 6 constitute an electrical connection structure.

[0043] When the linkage component 4 moves downward, it can press the switch isolation pad 51 of the isolation component 5 and the end of the switch spring 24. The switch spring 24 can bend downward elastically based on the root rivet point, pressing the silver contact of the spring at 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.

[0044] After the socket slider 3 is moved and reset, the linkage component 4 can break free from the downward pressure of the socket slider 3. Under the action of the reset elastic force of the switch isolation pad 51 and the switch spring 24, it can rebound upward at the bottom of the linkage component 4, thereby breaking the contact with the silver contact on the power-connecting PCB board 6 and disconnecting the power supply.

[0045] Furthermore, the upward rebound of the switch isolation pad 51 and the switch spring 24 can play a certain lifting role on the linkage component 4, ensuring the elastic reset of the linkage component 4.

[0046] As a linkage component of the mechanical transmission structure, the linkage 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.

[0047] 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.

[0048] 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.

[0049] The push rod spring 43, which is located between the push rod sleeve 41 and the limit ring 44, can play a good buffering role. When a standard plug is inserted, that is, when the downward stroke of the socket slider 3 is adapted to the stroke required by the push rod 42 trigger switch spring 24, the push rod spring 43 will be compressed within a suitable range.

[0050] The push rod sleeve 41 includes an engineering step 45. The top end of the push rod spring 43 abuts against the engineering step 45, and the bottom end abuts against the annular flat wall of the limiting ring 44, which can ensure that the push rod spring 43 provides relatively stable and reliable reset and buffering.

[0051] 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.

[0052] In order to provide space for the installation of the push rod 42 and to enable the socket slider 3 to perform translational movement, a clearance groove 34 is provided on the socket slider 3 to avoid the push rod 42. The clearance groove 34 includes a vertical cut groove in the center of the bottom guide wall 33. This arrangement allows the push rod 42 to be vertically and vertically 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 to maintain the downward pressure relationship on the push rod 42.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Cutting the original sheet maintains the original stability of the high-temperature resistant silicone rubber material, avoiding damage to material properties caused by secondary hot-melt molding and extending the service life of the parts. For deformed installations with curved protrusions, the resilience of the soft rubber material is enhanced, ensuring proper repositioning even after prolonged use.

[0057] 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.

[0058] The switch isolation frame 52 is disposed between the internal support 2 and the power-connecting PCB board 6, and the end of the switch spring 24 is disposed inside the switch isolation frame 52. The switch isolation frame 52 includes multiple compartments, with the end of each switch spring 24 correspondingly set in a different compartment. Each compartment has a raised baffle at the bottom, which can be tightly fitted to the power-connected PCB board 6 to isolate each switch.

[0059] The raised enclosure on the back of the switch isolation bracket 52 can fit tightly against the power-connecting PCB board 6, isolating each switch, that is, each switch spring 24, thus preventing the electric arc generated at the moment of contact of the silver contacts of the switch spring 24 from damaging the surrounding parts and avoiding the possibility of leakage and short circuit.

[0060] The power-connecting PCB board 6 is fixed to the bracket base 21 by a screw 63 and is tightly fitted to the switch isolation bracket 52. The power-connecting PCB board 6 is provided with a ground wire hole, which is soldered to the ground wire copper sheet 61.

[0061] This utility model also provides a safety socket, including the waterproof and dustproof insulation structure described above. The safety socket in this application can minimize the risk of electric shock and leakage, and greatly improve the safety of socket use.

[0062] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0063] 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 waterproof and dustproof insulating structure, applied to a safety socket, characterized in that, The safety socket includes a socket housing and an internal support disposed in the socket housing, with a waterproof pad provided between the internal support and the socket housing; A power-connecting PCB board and a switch spring are provided between the internal support and the socket housing. The power-connecting PCB board and the switch spring are located at the lower part of the internal support. A power-connecting sleeve is fixedly installed in the internal support. A power-connecting copper nail extending outward from the internal support is provided at the bottom of the power-connecting sleeve. The root of the switch spring is connected to the power-connecting copper nail, and the end of the spring is flexibly located above the power-connecting PCB board. The power-connecting PCB board and the internal support are provided with an isolation component. The isolation component includes a switch isolation frame that is pressed tightly against the power-connecting PCB board and a switch isolation pad that is pressed between the switch isolation frame and the internal support.

2. The waterproof and dustproof insulating structure according to claim 1, characterized in that, The socket housing includes a front cover and a rear cover, the internal bracket includes a bottom cover and a top cover, and the waterproof pad includes a front waterproof pad disposed between the front cover and the top cover.

3. The waterproof and dustproof insulation structure according to claim 2, characterized in that, The waterproof pad also includes a rear waterproof pad, which is disposed between the power-connecting PCB board and the rear cover of the housing.

4. The waterproof and dustproof insulating structure according to claim 3, characterized in that, The rear cover of the housing is provided with a raised shell, and a wiring sleeve for connecting an external power cord is installed inside the raised shell. The rear waterproof pad is sandwiched between the power-connecting PCB board and the raised shell.

5. The waterproof and dustproof insulating structure according to claim 4, characterized in that, The raised shell is provided with a connection port for an external power cord to pass through, and a safety cover is detachably connected to the connection port.

6. The waterproof and dustproof insulation structure according to claim 3, characterized in that, The top cover of the bracket is provided with a plug hole for inserting a plug prong, and the internal bracket is provided with a movable socket slider, which is corresponding to the plug hole.

7. The waterproof and dustproof insulating structure according to claim 6, characterized in that, A linkage component is provided at the bottom of the socket slider. The linkage component is located above the switch spring and can move up and down during the translation of the socket slider. The switch isolation pad is disposed between the linkage component and the switch spring.

8. The waterproof and dustproof insulating structure according to claim 3, characterized in that, The switch isolation pad includes an elastic gasket made of silicone rubber. An arc-shaped groove is provided on the bottom wall of the bracket base. An arc-shaped raised top edge is provided on the top of the switch isolation frame. The switch isolation pad is press-fitted between the arc-shaped groove and the arc-shaped raised top edge.

9. The waterproof and dustproof insulating structure according to claim 3, characterized in that, The switch spring includes multiple springs, and the switch isolation frame includes multiple compartments, with the spring ends of the switch springs correspondingly disposed in different compartments.

10. A safety socket, characterized in that, The waterproof and dustproof insulating structure includes any one of claims 1-9.

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