Shock-proof socket

The socket's isolation cavities and drain holes prevent electric shock by draining water and maintaining insulation, addressing the risk of residual water contact in outdoor use.

JP2026505643APending Publication Date: 2026-02-17GUANGZHOU MINGMEI NEW ENERGY CORP CO LTD
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Patent Information

Application Number
JP2024576555
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-02-24
Filing Date
2023-05-05
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

Outdoor power sockets are prone to flooding or water damage, leading to residual water that poses a risk of electric shock when used outdoors.

Method used

The socket features a housing with elastic pieces and isolation cavities, each with drain holes, forming air isolation gaps and allowing water to be drained, preventing electrical contact between residual water and internal components.

Benefits of technology

The design effectively isolates residual water on the socket surface from internal components, preventing electric shock and ensuring safe electrical use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of electrical equipment and discloses an electric shock-proof socket, which includes a housing in which a plurality of elastic pieces are arranged and insulated and separated from one another, the housing further provided with insertion holes corresponding to each of the elastic pieces, the housing further provided with a plurality of isolated cavities isolated from one another, each in one-to-one correspondence with each insertion hole, each isolation cavity having cavity walls spaced apart from one another along the extension direction of the insertion holes, each insertion hole passing through the cavity wall of the corresponding isolation cavity, and the housing further provided with a plurality of drainage holes communicating with each of the isolation cavities. The insertion hole forms an air isolation gap between the cavity walls that are isolated from each other, and if water gets into the insertion hole of the socket due to flooding or being splashed on the socket, the water in the isolation cavity will be discharged through the drain hole. As a result, the insertion hole is insulated and separated by the air isolation gap between the two cavity walls of the isolation cavity, and residual water on the surface of the housing will not be conductive to the internal elastic piece. This avoids the risk of electric shock caused by residual water remaining on the surface of the housing communicating with the elastic piece inside the socket, ensuring safe electrical use.
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Description

[Technical Field]

[0001] The present invention relates to the technical field of electrical equipment, and in particular to shock-preventing sockets. [Background technology]

[0002] Sockets are the most commonly used electrical components in people's daily lives. Their usage environments are complex and diverse, and they are often installed in humid environments such as bathrooms and outdoors. Therefore, to ensure safety during use, they usually require waterproofing.

[0003] Chinese patent application CN108173052A discloses a waterproof plug and socket comprising a socket case, a plug housing, and a plug, wherein a sealed box is fixed to the front of the socket case, a sealing slot is provided on one side of the sealed box, and a sealing plate is in sliding contact with the inner wall of the sealing slot, a front panel is fixed to the front of the sealed box, an insertion opening is provided on the front of the front panel, an electrical insertion hole is provided on the inner wall of the insertion opening, and sliding grooves are provided on both sides of the inner wall of the plug housing, and the plug housing Stopper ribs are fixed to both sides of the front of the housing, a waterproof insertion hole is provided on the back of the plug housing, first waterproof rubber seals are fixed to both the top and bottom of the inner wall of the waterproof insertion hole, second waterproof rubber seals are fixed to both sides of the inner wall of the waterproof insertion hole, a pin is inserted into the back of the plug, slide rails that fit into the slide grooves are fixed to both sides of the plug, an electric wire groove is provided at the bottom of the front of the plug, an electric wire passes through the inner wall of the electric wire groove, and the end of the electric wire located inside the plug is fixed to the pin.

[0004] In the above socket, the insertion port moves the contact surface into the interior of the socket, and a waterproof rubber seal is used to isolate the environment between the inside and outside of the plug housing; that is, conventional sockets achieve waterproofing by reducing the amount of water vapor that enters the interior of the socket housing.

[0005] However, when AC sockets used for outdoor power supplies are used outdoors rather than in a sealed indoor environment, they are prone to flooding or water damage. When flooding or water damage occurs, water remains inside the AC socket and on the surface of the socket housing. If this residual water connects with the water inside, it forms a pathway, and there is a risk of electric shock when a person comes into contact with the residual water on the surface of the socket housing. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION An object of the present invention is to provide an electric shock prevention socket that overcomes the problem of the prior art that there is a risk of electric shock when an outdoor power socket is used after being submerged or submerged in water. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides an electric shock-proof socket including a housing in which a plurality of elastic pieces are arranged and insulated from one another, the housing further having insertion holes corresponding to each of the elastic pieces, the housing further having a plurality of isolated isolation cavities isolated from one another, each of the isolation cavities in one-to-one correspondence with each of the insertion holes, each of the isolation cavities having cavity walls spaced apart from one another in the extension direction of the insertion holes, each of the insertion holes passing through the cavity wall of the corresponding isolation cavity, and the housing further having a plurality of drain holes communicating with each of the isolation cavities.

[0008] Preferably, the housing includes a socket body and a socket board disposed on one side of the socket body, the socket body having an insulating structure, and each of the elastic pieces is disposed within the socket body; The socket board and the socket body are arranged at a distance from each other along the extension direction of the insertion holes, and a radial partition base is connected between the socket board and the socket body, and the partition base is formed between every two adjacent insertion holes, and the partition base divides the space between the socket board and the socket body into each of the isolation cavities.

[0009] Preferably, a connecting base is further provided between the socket board and the socket body, and the connecting base is arranged at intervals along the edge of the socket board, with the space between two adjacent connecting bases forming the drain hole.

[0010] Preferably, the gap between the socket board and the socket body is 1 mm or more.

[0011] Preferably, the housing further includes a socket rear cover, which is disposed on the side of the socket body opposite the socket board, and the socket rear cover is provided with connection holes through which each of the elastic pieces passes, and a gasket is further disposed between the socket rear cover and the socket body.

[0012] Preferably, the gasket is made of silicone rubber.

[0013] Preferably, the elastic pieces include an elastic piece for a live wire, an elastic piece for a neutral wire, and an elastic piece for an earth wire, and the elastic piece for the live wire, the elastic piece for the neutral wire, and the elastic piece for the earth wire are arranged in a part-letter shape. [Effects of the Invention]

[0014] Compared with the prior art, the electric shock-proof socket according to the embodiment of the present invention has the following advantageous effects: an isolation cavity is provided within the housing, and the plug hole penetrates the spaced-apart cavity walls of the isolation cavity, thereby forming an air isolation gap between the isolated cavity walls, and if water enters the plug hole of the socket due to flooding or being splashed on the socket, the water in the isolation cavity can be drained through the drain hole, so that the plug hole is electrically isolated between the two cavity walls of the isolation cavity by the air isolation gap, and residual water on the surface of the housing does not conduct to the internal elastic piece. This avoids the risk of electric shock caused by residual water remaining on the surface of the housing communicating with the elastic piece inside the socket, ensuring safe electrical use. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a structural schematic diagram of the electric shock prevention socket of the present invention. [Figure 2] 2 is a schematic diagram of the three-dimensional structure of the electric shock prevention socket of FIG. 1 after assembly. [Figure 3] FIG. 3 is a front view of the electric shock prevention socket of FIG. 2. [Figure 4] 4 is a cross-sectional view of the electric shock prevention socket of FIG. 3 taken along line AA. [Figure 5] FIG. 4 is a top view of the shock-prevention socket of FIG. 3. [Figure 6] 6 is a cross-sectional view of the electric shock prevention socket of FIG. 5 taken along line BB. [Figure 7] 2 is a schematic diagram of the assembly of the elastic piece and gasket of the electric shock prevention socket of FIG. 1. [Figure 8] 2 is a schematic diagram of the electric shock prevention socket of the present invention in operation; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Specific embodiments of the present invention will be described in more detail below with reference to the drawings and examples. The following examples are intended to illustrate the present invention but are not intended to limit the scope of the present invention.

[0017] In one preferred embodiment of the electric shock prevention socket of the present invention, as shown in Figures 1 to 8, this electric shock prevention socket includes a housing 1, an elastic piece 2, an insertion hole 3, an isolation cavity 4, and a drain hole 5, and the housing 1 is made of an insulating material, and the elastic piece 2, the insertion hole 3, the isolation cavity 4, and the drain hole 5 are all disposed within the housing 1. The housing 1 is attached to an outdoor power supply panel 8. In this embodiment, the housing 1 has a rectangular parallelepiped structure overall and has the same external dimensions as a conventional socket, so that it can be inserted and mounted in a conventional outdoor power supply panel 8.

[0018] The elastic pieces 2 are connected to the power lines of the outdoor power supply main unit. There are multiple elastic pieces 2, and the multiple elastic pieces 2 are arranged in the housing 1 so that they are insulated and separated from each other, thereby avoiding safety risks due to short circuits between the power lines. Socket holes 3 are provided in the housing 1 and correspond to each elastic piece 2, and terminals of plugs 7 are inserted into the socket holes 3 to be electrically connected to the elastic pieces 2.

[0019] A plurality of isolation cavities 4 are provided in the housing 1 in one-to-one correspondence with each of the insertion holes 3, i.e., the number of isolation cavities 4 is the same as the number of insertion holes 3. The isolation cavities 4 have cavity walls spaced apart from one another in the extension direction of the insertion holes 3, and each insertion hole 3 penetrates the cavity wall of its corresponding isolation cavity 4. The extension direction of the insertion holes 3 is the insertion direction when the plug 7 is inserted into the insertion hole 3.

[0020] The insertion hole 3 is separated from each other by the two cavity walls of the isolation cavity 4, and when the plug 7 is inserted into the insertion hole 3, it penetrates the two cavity walls of the isolation cavity 4 in turn. The insertion hole 3 forms an air isolation gap between the two cavity walls of the isolation cavity 4, and the insulating effect of the air ensures that the insertion hole 3 is insulated and isolated on both sides of the isolation cavity 4, thereby avoiding the elastic piece 2 being electrically connected to residual water outside the housing 1 and causing an electrical safety risk.

[0021] The housing 1 is further provided with a plurality of drainage holes 5, each of which communicates with one of the isolation cavities 4; that is, each isolation cavity 4 is provided with a drainage hole 5 which communicates with the outside, thereby allowing water in the isolation cavity 4 to be discharged to the outside of the housing 1. The cavity walls of the isolation cavity 4 are spaced apart in the extension direction of the insertion hole 3, so that when the socket is flooded or wetted and water accumulates in the isolation cavity 4, the water in the isolation cavity 4 can be quickly discharged through the drainage holes 5, and an air isolation gap can be formed between the cavity walls of the isolation cavity 4.

[0022] An isolation cavity 4 is provided within the housing 1 of this electric shock-proof socket, and the insertion hole 3 penetrates the cavity walls of the isolation cavity 4 which are arranged at a distance from each other, so that the insertion hole 3 forms an air isolation gap between the mutually isolated cavity walls. If the socket becomes flooded or wet and water enters the insertion hole 3 of the socket, the water in the isolation cavity 4 is drained through the drain hole 5. As a result, the insertion hole 3 is insulated and separated by the air isolation gap between the two cavity walls of the isolation cavity 4, so that residual water on the surface of the housing 1 does not communicate with the elastic piece 2 inside. This prevents the risk of electric shock caused by residual water remaining on the surface of the housing 1 communicating with the elastic piece 2 inside the socket, and ensures safe electrical use.

[0023] Preferably, the housing 1 includes a socket body 11 and a socket board 12 arranged on one side of the socket body 11, the socket body 11 having an insulating structure, and each elastic piece 2 is arranged within the socket body 11. The socket board 12 and the socket body 11 are arranged at a distance from each other along the extension direction of the insertion holes 3, and a radial partition base 14 is connected between the socket board 12 and the socket body 11, and the partition base 14 is formed between two adjacent insertion holes 3, and the partition base 14 divides the space between the socket board 12 and the socket body 11 into each isolation cavity 4.

[0024] In this embodiment, the socket body 11 has a solid structure, and the socket body 11 itself has insulating properties, and the elastic pieces 2 are disposed inside the socket body 11. The socket body 11 can provide insulation and separation between the elastic pieces 2, and the elastic pieces 2 are separated from one another by the socket body 11, so that the flow of water droplets that have entered the socket body 11 is restricted, and it is possible to prevent adjacent elastic pieces 2 from connecting together due to water droplets, thereby causing a short circuit.

[0025] The housing 1 is composed of a socket board 12 and a socket body 11, and the isolation cavity 4 is formed by dividing the space between the socket board 12 and the socket body 11 by a partition 14, thus simplifying the structure of the isolation cavity 4. In this embodiment, the socket board 12 and the socket body 11 are of an integral structure, and the isolation cavity 4 can be formed by molding. In another embodiment, the socket board 12 and the socket body 11 may be detachably connected by screws, and the partition 14 is integrally molded with the socket body 11 or the socket board 12, and the isolation cavity 4 is formed by assembling them.

[0026] The partition base 14 has a radial structure and is arranged between two adjacent isolation cavities 4. The partition base 14 divides the space between the socket board 12 and the socket body 11 into multiple independent spaces to form the isolation cavities 4. The partition base 14 blocks the flow of water between each isolation cavity 4, preventing the elastic pieces 2 from connecting with each other due to water, thereby causing a short circuit.

[0027] Preferably, a connecting base 15 is further provided between the socket board 12 and the socket body 11, and the connecting bases 15 are arranged at intervals along the edge of the socket board 12, with the space between two adjacent connecting bases 15 forming a drainage hole 5.

[0028] The connecting bases 15 are arranged at the four corners of the socket board 12 and the socket body 11, which increases the connection strength between the socket board 12 and the socket body 11 and extends the service life of the socket. The spacing between the connecting bases 15 forms the drain holes 5, which makes it easier to form the drain holes 5.

[0029] Preferably, the gap between the socket board 12 and the socket body 11 is 1 mm or more.

[0030] The gap between the socket board 12 and the socket body 11 is for preventing electric shock. If this gap is too small, drainage becomes difficult, the air isolation gap may break down due to voltage, and the cost of the mold increases and the strength of the mold decreases. If the gap is 1 mm or more, an appropriate gap is ensured, drainage is facilitated, and the air isolation gap is formed.

[0031] In this embodiment, the gap between the socket board 12 and the socket body 11 is specifically 1.5 mm. This gap is an appropriate size, separating both ends of the insertion hole 3 from each other. The 1.5 mm gap allows water to flow quickly, avoiding the adverse effect on drainage speed caused by siphoning that occurs when the gap is too small. It also avoids the negative effect on the socket size that occurs when the gap between the socket board 12 and the socket body 11 is too large, and simultaneously achieves both cost and strength of the mold. In other embodiments, the gap between the socket board 12 and the socket body 11 may be 1.3 mm, 2 mm, 3 mm, etc.

[0032] Preferably, the housing 1 further includes a socket rear cover 13, which is arranged on the side of the socket body 11 opposite the socket board 12, and the socket rear cover 13 is provided with connection holes through which each elastic piece 2 passes, and a gasket 6 is further arranged between the socket rear cover 13 and the socket body 11.

[0033] The socket rear cover 13 and the socket body 11 are removably connected with screws, which makes it easy to remove the socket rear cover 13 and connect each elastic piece 2 to a power line. The gasket 6 can seal the gap between the socket rear cover 13 and the socket body 11, thereby preventing residual water from entering the inside of the socket body 11 through the position of the socket rear cover 13 if the socket becomes flooded or wet.

[0034] Preferably, the material of the gasket 6 is silicone rubber.

[0035] Silicone rubber has properties such as high temperature resistance, high elasticity, and excellent insulation, which can improve the sealing ability of the socket and increase its insulation, making it suitable for the complex operating environment of the socket.

[0036] Preferably, the elastic piece 2 includes an elastic piece 21 for the live wire, an elastic piece 22 for the neutral wire, and an elastic piece 23 for the earth wire, and the elastic piece 21 for the live wire, the elastic piece 22 for the neutral wire, and the elastic piece 23 for the earth wire are arranged in a part-letter shape.

[0037] The live wire elastic piece 21, neutral wire elastic piece 22, and earth wire elastic piece 23 are arranged in a square shape and are suitable for a conventional three-hole socket. In another embodiment, if a two-hole socket is required as an outdoor power socket, the earth wire elastic piece 23 may be omitted.

[0038] As described above, the electric shock-proof socket according to an embodiment of the present invention has an isolation cavity within its housing, and the insertion hole passes through the spaced-apart cavity walls of the isolation cavity, so that the insertion hole forms an air isolation gap between the spaced-apart cavity walls. If water enters the insertion hole of the socket due to flooding or being exposed to water, the water within the isolation cavity is discharged through the drain hole. As a result, the insertion hole is insulated and separated by the air isolation gap between the two cavity walls of the isolation cavity, so that residual water on the surface of the housing does not conduct electricity with the internal elastic piece. This prevents the risk of electric shock caused by residual water remaining on the surface of the housing conducting electricity with the elastic piece inside the socket, and ensures safe electrical use.

[0039] The above is merely a preferred embodiment of the present invention, and those skilled in the art may make some improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered as part of the protection scope of the present invention. [Explanation of symbols]

[0040] 1. Housing 11 Socket body 12 Socket Board 13 Socket rear cover 14 Divider table 15 Connecting stand 2 elastic pieces 21 Elastic piece for live line 22 Elastic piece for neutral conductor 23 Elastic piece for earth wire 3 Insertion hole 4 Isolation Cavity 5 Drain port 6 gaskets 7 Plug 8 Outdoor Power Panel

Claims

1. An electric shock prevention socket, Including a housing, A plurality of elastic pieces are arranged in the housing and are insulated and separated from one another, and the housing is further provided with insertion holes corresponding to the respective elastic pieces, the housing is further provided with a plurality of isolation cavities isolated from one another, each of the isolation cavities corresponding one-to-one to each of the insertion holes, each of the isolation cavities having cavity walls spaced apart from one another along the extension direction of the insertion holes, each of the insertion holes passing through the cavity wall of the corresponding isolation cavity, and the housing is further provided with a plurality of drain holes each communicating with each of the isolation cavities.

2. the housing includes a socket body and a socket board disposed on one side of the socket body, the socket body having an insulating structure, and each of the elastic pieces is disposed within the socket body; 2. The electric shock prevention socket according to claim 1, wherein the socket board and the socket body are arranged at an interval along the extension direction of the insertion holes, a radial partition base is connected between the socket board and the socket body, the partition base is formed between every two adjacent insertion holes, and the partition base divides the space between the socket board and the socket body into each of the isolation cavities.

3. 3. The electric shock prevention socket according to claim 2, further comprising a connecting base provided between the socket board and the socket body, the connecting base being arranged at intervals along the edge of the socket board, and the space between two adjacent connecting bases forming the drain hole.

4. 3. The electric shock prevention socket according to claim 2, wherein the gap between the socket board and the socket body is 1 mm or more.

5. 3. The electric shock prevention socket according to claim 2, wherein the housing further includes a socket rear cover, the socket rear cover being disposed on a side of the socket body opposite the socket board, the socket rear cover being provided with connection holes through which the elastic pieces pass, and a gasket being further disposed between the socket rear cover and the socket body.

6. 6. The electric shock prevention socket according to claim 5, wherein the gasket is made of silicone rubber.

7. The shock-preventing socket according to any one of claims 1 to 6, characterized in that the elastic pieces include an elastic piece for a live wire, an elastic piece for a neutral wire, and an elastic piece for an earth wire, and the elastic piece for the live wire, the elastic piece for the neutral wire, and the elastic piece for the earth wire are arranged in a part-letter shape.