3-prong single plug outlet
The three-prong single-plug outlet addresses the limitations of conventional outlets by incorporating multiple connection holes, reducing installation time, material costs, and space needs through enhanced design.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- WII POWER TECH LTD
- Filing Date
- 2026-04-03
- Publication Date
- 2026-05-29
AI Technical Summary
Conventional three-prong outlets have limited connection holes, necessitating the use of additional 5-channel cable adapters, increasing installation time, material costs, and space requirements.
A three-prong single-plug outlet with a case having opposing surfaces featuring live, neutral, and ground wire insertion and connection areas, each with multiple connection holes, eliminating the need for additional cable adapters.
Reduces installation time, material costs, and space requirements by providing sufficient connection holes for wiring without the need for additional adapters.
Smart Images
Figure 0003256079000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a socket, and particularly to a three-hole single plug socket that is easy to amplify.
Background Art
[0002] In a socket, the front insertion holes are connected to the connection holes on the back of the socket by wiring inside the socket. Thus, commercial power is transmitted through the wiring inside the socket to the front insertion holes of the socket, and can provide the operating power of electrical products. As an example, FIGS. 7 and 8 show a conventional support plate 50 provided with two three-hole sockets 51 and a power supply socket 52. The back of each of the three-hole sockets 51 has a live wire connection hole 511, a neutral wire connection hole 512, and two ground wire connection holes 513, and the back of the power supply socket 52 has a live wire connection hole 521 and a neutral wire connection hole 522. Since the number of the live wire connection hole 511 and the neutral wire connection hole 512 on the back of each of the three-hole sockets is limited (only one each), in the wiring process of amplifying the number of sockets, the installer has to additionally use two 5-channel cable adapters 60 to connect the two three-hole sockets 51 and the power supply socket 52 to each other. Here, one of the 5-channel cable adapters 60 is for arranging the live wire (L), and the other is for arranging the neutral wire (N).
[0003] Thus, the conventional three-hole socket has the following problems due to the limited number of connection holes. For the installer, the working time for connecting the wiring to the 5-channel cable adapter increases. For the business owner, the material cost of the 5-channel cable adapter is separately incurred. For the overall space planning, a separate space is required for installing the 5-channel cable adapter. Therefore, it was inevitable to improve the three-hole socket.
Summary of the Invention
Problems to be Solved by the Invention
[0004] In light of the limitations of existing three-prong outlets, which result in the problems described in the prior art, this invention provides a three-prong single-plug outlet consisting of the following components. [Means for solving the problem]
[0005] The three-hole single-plug outlet provided in this invention is A case having opposing first and second surfaces, the first surface being provided with a live wire insertion hole, a neutral wire insertion hole, and a ground wire insertion hole, and the second surface being provided with a live wire connection area, a neutral wire connection area, and a ground wire connection area, having an internal housing space, and at least one of the live wire connection area and the neutral wire connection area having at least three connection holes, A live line installed in the aforementioned containment space, the position of which corresponds to the position of the live line insertion hole and the position of the live line connection area, A neutral line installed in the aforementioned housing space, the position of which corresponds to the position of the neutral wire insertion hole and the position of the neutral wire connection area, The system includes a grounding line installed in the aforementioned housing space, the position of which corresponds to the position of the grounding wire insertion hole and the position of the grounding wire connection area. [Effects of the Invention]
[0006] The three-hole single-plug outlet of this invention has at least three connection holes in at least one of the live-wire connection area and the neutral-wire connection area. When a worker performs a wiring process to increase the number of outlets, if there are at least three connection holes in the live-wire connection area, there is no need to use an additional 5-channel cable adapter as described in the prior art to arrange the live wires. Similarly, if there are at least three connection holes in the neutral-wire connection area, there is no need to use an additional 5-channel cable adapter as described in the prior art to arrange the neutral wires. This saves the worker's wiring time, the material costs that the business owner would otherwise have to pay separately, and the space occupied by the 5-channel cable adapter. [Brief explanation of the drawing]
[0007] [Figure 1] This is a perspective view of the front view of the three-hole single-plug outlet of the present invention. [Figure 2] This is a perspective view of the rear view of the three-hole single-plug outlet of the present invention. [Figure 3] This is a three-dimensional exploded view of the three-hole single-plug outlet of the present invention. [Figure 4] This is a three-dimensional exploded view of the three-hole single-plug outlet of the present invention. [Figure 5] This diagram shows the usage state of the three-hole single-plug outlet of the present invention. [Figure 6] This diagram shows the usage state of the three-hole single-plug outlet of the present invention. [Figure 7] This diagram shows the usage of a conventional 3-prong electrical outlet. [Figure 8] This diagram shows the usage of a conventional 3-prong electrical outlet. [Modes for carrying out the invention]
[0008] As shown in Figures 1 to 4, the three-hole single-plug outlet 1 of the present invention comprises a case 10, a live line 20, a neutral line 30, and a ground line 40. The case 10 has opposing first surfaces 11 and second surfaces 12, and the inside of the case 10 has a housing space. Specifically, the case 10 comprises a first case 10A and a second case 10B. The front side of the first case 10A is the front side of the case 10 and has the first surface 11, and the rear side of the second case 10B is the rear side of the case 10 and has the second surface 12. The rear side of the first case 10A (opposite the first surface 11) is removably engaged with the front side of the second case 10B (opposite the second surface 12) to form the housing space.
[0009] As an example, a first structure 101 (e.g., multiple recesses) is formed on the rear side of the first case 10A, and a second structure 102 (e.g., multiple protrusions) is formed on the front side of the second case 10B, and the first structure 101 is reciprocally compatible with the second structure 102, and the first case 10A and the second case 10B can be joined and fixed by two engaging members 13, specifically each engaging member 13 having a contact portion 131 and two fixing portions 132, and both ends of the contact portion 131 are connected to the two fixing portions 132 respectively, on the upper and bottom sides of the first case 10A A first groove 103 is formed on each of the two engaging members 13, and a second groove 104 is formed on the upper and bottom sides of the second case 10B. The two fixing portions 132 of the two engaging members 13 are inserted into the first groove 103 and the second groove 104 from the upper and bottom sides of the first surface 11 of the first case 10A, respectively, and are installed on the sides of the first case 10A and the second case 10B, so that the first case 10A and the second case 10B do not loosen and come apart. In this way, the contact portions 131 of the two engaging members 13 are installed on the upper and bottom sides of the first surface 11.
[0010] The first surface 11 of the case 10 is provided with a live wire insertion hole 111, a neutral wire insertion hole 112, and a ground wire insertion hole 113, and the second surface 12 of the case 10 is provided with a live wire connection area 12A, a neutral wire connection area 12B, and a ground wire connection area 12C, and the live wire connection area 12A and the neutral wire connection area 12B each have connection holes, and at least one of the live wire connection area 12A and the neutral wire connection area 12B has at least three connection holes, and the live line 20 is installed in the housing space, and the position of the live line 20 is, The neutral line 30 is installed in the housing space corresponding to the position of the live wire insertion hole 111 and the position of the live wire connection area 12A, the position of the neutral line 30 corresponds to the position of the neutral wire insertion hole 112 and the position of the neutral wire connection area 12B, the ground line 40 is installed in the housing space, the position of the ground line 40 corresponds to the position of the ground wire insertion hole 113 and the position of the ground wire connection area 12C, where the live line 20, the neutral line 30, and the ground line 40 are each formed by connecting a plurality of conductive members (for example, metal pieces).
[0011] As shown in Figures 1 to 4, the live-connection region 12A has three live-connection holes 121, the neutral-connection region 12B has three neutral-connection holes 122, the live-line 20 has a live-insertion hole conductive member 21 and three live-connection hole conductive members 22, the live-insertion hole conductive member 21 is electrically connected to the three live-connection hole conductive members 22, the position of the live-insertion hole conductive member 21 corresponds to the position of the live-insertion hole 111, and the three live-connection hole conductive members The positions of 22 each correspond to the three live connection holes 121, the neutral line 30 has a neutral wire insertion hole conductive member 31 and three neutral wire connection hole conductive members 32, the neutral wire insertion hole conductive member 31 is electrically connected to the three neutral wire connection hole conductive members 32, the position of the neutral wire insertion hole conductive member 31 corresponds to the position of the neutral wire insertion hole 112, and the positions of the three neutral wire connection hole conductive members 32 each correspond to the three neutral wire connection holes 122.
[0012] In other words, when a plug pin (not shown) is inserted into the live-wire insertion hole 111 and lead wires (not shown) are inserted into each of the three live-wire connection holes 121, the plug pin can make electrical contact with the live-wire insertion hole conductive member 21, the lead wires can make electrical contact with the live-wire connection hole conductive member 22, and the live-wire insertion hole conductive member 21 is electrically connected to the three live-wire connection hole conductive members 22. Therefore, the plug pin can form an electrical connection with the lead wire, and by similar reasoning, the plug pin inserted into the neutral wire insertion hole 112 can form an electrical connection with the lead wire inserted into the three neutral wire connection holes 122.
[0013] Furthermore, the live line 20 and the neutral line 30 may also have two pin clamping portions 23 and 33, respectively. Specifically, the two pin clamping portions 23 of the live line 20 are formed in the live wire insertion hole conductive member 21, and the two pin clamping portions 33 of the neutral line 30 are formed in the neutral wire insertion hole conductive member 31. The positions of the two pin clamping portions 23 of the live line 20 correspond to the positions of the live wire insertion hole 111, and clamp the plug pin inserted from the live wire insertion hole 111. The positions of the two pin clamping portions 33 of the neutral line 30 correspond to the positions of the neutral wire insertion hole 112, and clamp the plug pin inserted from the neutral wire insertion hole 112. Preferably, a protrusion B is formed on one of the two pin-clamping portions 23 of the live line 20, and a protrusion B' is formed on one of the two pin-clamping portions 33 of the neutral line 30, thereby improving the strength of clamping the plug pin.
[0014] The grounding wire connection area 12C has two grounding wire connection holes 123, and the grounding line 40 has a grounding wire insertion hole conductive member 41 and two grounding wire connection hole conductive members 42, the grounding wire insertion hole conductive member 41 is electrically connected to the two grounding wire connection hole conductive members 42, the position of the grounding wire insertion hole conductive member 41 corresponds to the position of the grounding wire insertion hole 113, the positions of the two grounding wire connection hole conductive members 42 correspond to the two grounding wire connection holes 123 respectively, and the two grounding wire connection holes 123 are located adjacent to and parallel to the bottom side of the second surface 12.
[0015] As shown in Figures 5 and 6, when two of the three-hole single-plug outlets 1 and a conventional power supply socket 2 are installed on a conventional support plate 3 in the conventional outlet arrangement configuration, the connection holes on the back of the three-hole single-plug outlet 1 of the present invention are sufficient for use by the installer for wiring, and there is no need to use additional cable adapters.
[0016] Specifically, the two three-hole single-plug outlets 1 are the first three-hole single-plug outlet 1A and the second three-hole single-plug outlet 1B, respectively, and the worker connects the live input wire 4A, the neutral input wire 5A, and the grounding input wire 6A to one of the three live connection holes 121, one of the three neutral connection holes 122, and one of the two grounding connection holes 123 of the first three-hole single-plug outlet 1A, respectively, and further connects the live connection wire 4B to the other two of the three live connection holes 121 of the first three-hole single-plug outlet 1A One of the three live-connection holes 121 of the second three-hole single-plug outlet 1B is connected with a neutral wire connection wire 5B, one of the other two neutral wire connection holes 122 of the first three-hole single-plug outlet 1A is connected with one of the three neutral wire connection holes 122 of the second three-hole single-plug outlet 1B, and the other of the two grounding wire connection holes 123 of the first three-hole single-plug outlet 1A is connected with one of the two grounding wire connection holes 123 of the second three-hole single-plug outlet 1B.
[0017] Subsequently, with the other live wire connection line 4B', one of the other two of the three live wire connection holes 121 of the second three-hole single plug socket 1B is connected to the live wire hole of the power supply socket 2, and with the other neutral wire connection line 5B', one of the other two of the three neutral wire connection holes 122 of the second three-hole single plug socket 1B is connected to the neutral wire hole of the power supply socket 2. The remaining live wire connection hole 121 and the neutral wire connection hole 122 of the first three-hole single plug socket 1A can be respectively connected to the live wire output line 4C and the neutral wire output line 5C, and the remaining ground wire connection hole 123 of the second three-hole single plug socket 1B can be connected to the ground wire output line 6C.
[0018] As shown in FIG. 2, the plurality of live wire connection holes 121 are located adjacent to the upper side of the second surface 12, and the plurality of live wire connection holes 121 are linearly arranged from the upper edge of the second surface 12 to the bottom edge of the second surface 12 to form a first linear shape. The plurality of neutral wire connection holes 122 are located adjacent to the upper side of the second surface 12, and the plurality of neutral wire connection holes 122 are linearly arranged from the upper edge of the second surface 12 to the bottom edge of the second surface 12 to form a second linear shape. The second linear shape and the first linear shape are parallel.
[0019] As shown in FIG. 2, on the second surface 12 of the case 10, a wire stripping length reference recess 120 is further formed. One end of the wire stripping length reference recess 120 is the side of the second surface 12. The wire stripping length reference recess 120 can be used as a reference for the installer during wire stripping. That is, when the installer peels the insulation layer outside the wiring to expose the internal metal wire, the length of the exposed metal wire can be compared with the length of the wire stripping length reference recess 120.
[0020] The three-hole single-plug outlet 1 of this invention has at least three connection holes in at least one of the live-wire connection area 12A and the neutral-wire connection area 12B. When a worker performs the wiring process to increase the number of outlets, if the live-wire connection area 12A has at least three connection holes, the worker does not need to use an additional 5-channel cable adapter 60 as described in the prior art to arrange the live lines. Similarly, if the neutral-wire connection area 12B has at least three connection holes, the worker does not need to use an additional 5-channel cable adapter 60 as described in the prior art to arrange the neutral lines. This saves the worker's wiring time, the material costs that the business owner would otherwise have to pay separately, and the space occupied by the 5-channel cable adapter 60.
Claims
1. A case having opposing first and second surfaces, the first surface being provided with a live wire insertion hole, a neutral wire insertion hole, and a ground wire insertion hole, and the second surface being provided with a live wire connection area, a neutral wire connection area, and a ground wire connection area, and having an internal housing space, wherein at least one of the live wire connection area and the neutral wire connection area has at least three connection holes, A live line installed in the aforementioned containment space, the position of which corresponds to the position of the live line insertion hole and the position of the live line connection area, A neutral line installed in the aforementioned housing space, the position of which corresponds to the position of the neutral wire insertion hole and the position of the neutral wire connection area, A three-hole single-plug outlet comprising a grounding line installed in the aforementioned housing space, the position of which corresponds to the position of the grounding wire insertion hole and the position of the grounding wire connection area.
2. The live-connection region has three live-connection holes, and the neutral-connection region has three neutral-connection holes. The live line has a live-insertion hole conductive member and three live-connection hole conductive members, the live-insertion hole conductive member is electrically connected to the three live-connection hole conductive members, the position of the live-insertion hole conductive member corresponds to the position of the live-insertion hole, and the positions of the three live-connection hole conductive members correspond to the three live-connection holes, respectively. The neutral line comprises a neutral wire insertion hole conductive member and three neutral wire connection hole conductive members, the neutral wire insertion hole conductive member is electrically connected to the three neutral wire connection hole conductive members, the position of the neutral wire insertion hole conductive member corresponds to the position of the neutral wire insertion hole, and the positions of the three neutral wire connection hole conductive members correspond to the three neutral wire connection holes, respectively, as described in claim 1.
3. The grounding wire connection area has two grounding wire connection holes, The grounding line comprises a grounding wire insertion hole conductive member and two grounding wire connection hole conductive members, the grounding wire insertion hole conductive member is electrically connected to the two grounding wire connection hole conductive members, the position of the grounding wire insertion hole conductive member corresponds to the position of the grounding wire insertion hole, and the positions of the two grounding wire connection hole conductive members correspond to the two grounding wire connection holes, respectively, as described in claim 1.
4. The three-hole single plug outlet according to claim 1, wherein the live line and the neutral line each have two pin clamping portions, a protrusion is formed on one of the two pin clamping portions of the live line, a protrusion is formed on one of the two pin clamping portions of the neutral line, the positions of the two pin clamping portions of the live line correspond to the positions of the live line insertion hole, and the positions of the two pin clamping portions of the neutral line correspond to the positions of the neutral line insertion hole.
5. A three-hole single plug outlet according to claim 1, wherein a stripping length reference recess is further formed on the second surface of the case, and one end of the stripping length reference recess is the side edge of the second surface.