Compact-structure plug pin assembly with plug-in position
By incorporating a bracket and sliding plug unit within the adapter socket, and by recessing the plug position and connector, the problem of excessively large adapter sockets is solved, achieving miniaturization and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN WONTRAVEL ELECTRIC CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing adapters are bulky and inconvenient to carry due to the variety of plug components and exposed plug positions.
The compact plug assembly design features an inwardly recessed plug position. By incorporating a bracket and slidingly connected plug unit within the adapter socket, both the plug position and the plug connector are located inside the plug unit, reducing the volume of conductive hardware and the plug assembly.
The overall size of the adapter socket has been effectively reduced, making it smaller and more portable, while maintaining the stability of the electrical connection and the performance of the socket.
Smart Images

Figure CN224177706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adapter socket technology, specifically to a compact plug assembly with recessed plug positions. Background Technology
[0002] As people's living standards gradually improve, they have more and more opportunities to travel abroad for tourism or business. Due to the different power socket standards in different countries, electrical plugs come in various shapes and styles. This means that electrical appliances brought out of the country cannot be used with local sockets abroad, causing considerable inconvenience to travelers.
[0003] Therefore, to facilitate people's travel, a type of adapter has appeared on the market, with different types of plug components that can be used in different regions. Since travelers carry a lot of items, the size of portable adapters needs to be as small and portable as possible. In some current adapter sockets, two sets of conductive hardware components are electrically connected via fuses and conductive parts. The first set corresponds to the socket's holes and is used to connect to the electrical products plugged into the socket. The second set is located opposite the first set, allowing the components on the prongs to interlock after the prongs extend out of the socket. When the prongs are plugged into the external socket, the second set of hardware becomes energized, and simultaneously, the first set of hardware becomes energized via the fuse and conductive parts. Currently, because the configured prong assemblies consist of multiple sets of different specifications, multiple insertion positions are required on the second set of hardware, and these insertion positions are located on the outside. This design makes the second set of hardware relatively large. Similarly, connecting parts adapted to the insertion positions are needed on multiple sets of different prong specifications, and these connecting parts need to extend beyond the outside of the prong assemblies. Therefore, the socket casing needs to be large to accommodate the above components, resulting in a large overall size of the adapter socket.
[0004] Therefore, new technical solutions are urgently needed to address the aforementioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to provide a compact plug assembly with an inwardly recessed insertion position. To solve the above-mentioned technical problems, this utility model adopts the following technical solution:
[0006] A compact plug assembly with an inwardly recessed socket includes a bracket installed inside an adapter socket and a plug unit slidably connected to the bracket. The plug unit slides along the bracket and extends out of the bracket for interlocking with an external socket. The plug unit includes at least three first plug assemblies, second plug assemblies, and third plug assemblies arranged side by side.
[0007] The bracket includes a base plate, on which holes for the pin unit to extend and multiple guide posts are provided vertically. The bracket is also equipped with two conductive hardware corresponding to the L and N poles respectively.
[0008] The first pin assembly, the second pin assembly, and the third pin assembly all include
[0009] A sliding member, slidably connected to the guide post, further includes...
[0010] The pin has one end formed on the slider and the other end extending towards the base plate.
[0011] A connector, one end of which is fixed to the slider and electrically connected to the pin, and the other end extends downward;
[0012] The conductive hardware is further provided with a plug-in position that is plugged into the plug-in, and the plug-in position is located within the range of the two sliding members at both ends of the plug unit projected toward the base plate.
[0013] Furthermore, the two conductive hardware components are located within the range of the first pin assembly and the second pin assembly projected orthogonally toward the base.
[0014] Furthermore, the slider on the first pin assembly includes two mounting portions arranged side by side, with a clearance space defined between the two mounting portions. A connecting portion is provided between the two mounting portions to connect them. The first pin assembly is provided with three pins corresponding to the E, L, and N poles, respectively, and the three pins are respectively mounted on the two mounting portions. A connector on the first pin assembly is disposed on one of the mounting portions. The connector on the first pin assembly includes an extension portion extending toward the other mounting portion. A bent portion is provided at the end of the extension portion, which bends downward and interlocks with the connector. The orthographic projection of the bent portion toward the base plate is located within the orthographic projection range of the mounting portion toward the base plate or within the clearance space.
[0015] Furthermore, the sliding member of the second plug assembly includes a telescopic part and a linkage part that are parallel to each other in the vertical direction and slidably connected to the bracket. The plug for interfacing with an external socket is disposed on the telescopic part, and the linkage part is provided with a through hole for the plug to extend or retract. The plug member on the second plug assembly is formed on the telescopic part, and one of the plug members is disposed on the side of the telescopic part facing the second plug assembly, and the other plug member is disposed on the side of the telescopic part facing the first plug assembly or on the side adjacent to the side facing the first plug assembly.
[0016] Furthermore, the pins on the first pin assembly corresponding to the E pole are close to the linkage portion on the second pin assembly.
[0017] Furthermore, the two bent portions have a flat structure, and the length direction of the bent portions is parallel to the length direction of the mounting portion; the insertion position corresponding to the bent portion is provided with a flat insertion interface.
[0018] Furthermore, the third pin assembly is disposed within the clearance space.
[0019] Furthermore, a partition plate is also provided on the bracket, the partition plate being located outside the first pin assembly and separating the pin unit from the outside of the bracket.
[0020] The beneficial effects of this utility model are as follows:
[0021] In this embodiment of the utility model, a compact plug assembly with an inwardly recessed plug position is provided. By shrinking the plug position on the conductive hardware inward, and simultaneously setting the corresponding plug part on the plug assembly on the inner side, the overall volume of the conductive hardware and the volume of the plug assembly are reduced. This avoids the situation where the plug part extends outward on the plug assembly, resulting in a large plug assembly volume. The overall size of the adapter is effectively reduced, making the adapter miniaturized and portable.
[0022] In operation, the plug-in positions are used to connect with the plug-in components on the plug-in components after the plug-in components slide out of the bracket along the bracket, thereby electrically connecting the plug-in components with the conductive hardware. When the plug-in components are connected to an external socket, the conductive hardware becomes energized. At this time, the plug-in positions formed on the conductive hardware are all located between the first plug-in components and the second plug-in components, and within the orthographic projection range of the sliding parts of the two plug-in components towards the base plate. That is, the distribution of the plug-in positions does not exceed the outline range of the plug-in unit. Similarly, the plug-in components set on each plug-in component are also set within the orthographic projection range of the plug-in unit towards the base plate, thereby preventing the plug-in positions and plug-in components from extending outward. This technical solution arranges the plug-in positions inward, thereby reducing the size of the conductive hardware, the base plate, and the plug-in units, thereby further reducing the overall size of the adapter socket, making it miniaturized and portable. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of the bracket after the upper part is removed in this utility model.
[0025] Figure 3 This is a schematic diagram of the structure of the first pin assembly after it extends out of the bracket in this utility model.
[0026] Figure 4 This is a schematic diagram of the exploded structure of this utility model.
[0027] Figure 5 This is a schematic diagram of the support structure in this utility model.
[0028] Figure 6 This is a schematic diagram of the structure of the first pin assembly and the bracket after assembly in this utility model.
[0029] Figure 7 This is a schematic diagram of the structure of the first pin assembly in this utility model.
[0030] Figure 8 This is a schematic diagram of the structure of the second pin assembly and the bracket after assembly in this utility model.
[0031] Figure 9 This is a schematic diagram of the structure of the third pin assembly and the bracket after assembly in this utility model.
[0032] Figure 10 This is a schematic diagram of the structure of this utility model with a partition plate.
[0033] In the diagram: 100-Bracket; 200-Pin unit; 210-First pin assembly; 220-Second pin assembly; 110-Base plate; 111-Hole; 112-Guide post; 120-Conductive hardware; 230-Sliding part; 231-Pin; 232-Connector; 121-Connection position; 233-Mounting part; 234-Clearing space; 235-Connecting part; 2321-Extension part; 2322-Bending part; 236-Telescopic part; 237-Linkage part; 1211-Interface; 240-Third pin assembly; 101-Spare plate. Detailed Implementation
[0034] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.
[0035] In this embodiment of the utility model, a compact plug 231 assembly with an inwardly recessed plug position 121 is provided. By shrinking the plug position 121 on the conductive hardware 120 inward, and simultaneously setting the corresponding plug member 232 on the plug 231 assembly on the inner side, the overall volume of the conductive hardware 120 and the volume of the plug 231 assembly are reduced. This avoids the situation where the plug member 232 extends outward on the plug 231 assembly, resulting in a large plug 231 assembly. The overall size of the adapter is effectively reduced, making the adapter miniaturized and portable.
[0036] Specifically, such as Figure 1-6As shown, this embodiment provides a compact plug 231 assembly with a recessed insertion position 121. It includes a bracket 100 installed inside the adapter socket and a plug unit 200 slidably connected to the bracket 100. The plug unit 200 slides along the bracket 100 and extends out of the bracket 100 for interlocking with an external socket. The plug unit 200 includes at least three first plug 231 assemblies 210, second plug 231 assemblies 220, and third plug assemblies 240 arranged side-by-side. The bracket 100 includes a base plate 110 with holes 111 for the plug unit 200 to extend from and multiple vertically arranged guide posts 112. The bracket 100 also has two guide posts respectively connected to L and N. The conductive hardware 120 corresponds to the pole; at the same time, the first pin 231 assembly 210, the second pin 231 assembly 220 and the third pin 231 assembly all include a slider 230, a pin 231 and a connector 232. Specifically, the slider 230 is slidably connected to the guide post 112, one end of the connector is formed on the slider 230 and the other end extends toward the base plate 110, one end of the connector 232 is fixed on the slider 230 and electrically connected to the pin 231, and the other end extends downward; the conductive hardware 120 is also provided with a connector position 121 that is mutually connected with the connector 232, and the connector position 121 is located within the range of the two sliders 230 at both ends of the pin unit 200 projected toward the base plate 110.
[0037] In operation, the plug position 121 is used to plug into the plug part 232 on the plug 231 assembly after the plug 231 assembly slides out of the bracket 100 along the bracket 100, thereby making the plug 231 assembly electrically connected to the conductive hardware 120. When the plug 231 is plugged into an external socket, the conductive hardware can be energized. At this time, the plug positions 121 formed on the conductive hardware 120 are all located between the first plug assembly and the second plug assembly, and within the range of the orthographic projection of the sliding member 230 of the two plug assemblies toward the base plate 110. That is, the distribution of the plug positions 121 does not exceed the outline range of the pin unit 200. Similarly, the plug member 232 set on each pin 231 assembly is also set within the range of the orthographic projection of the pin unit 200 toward the base plate 110, thereby preventing the plug positions 121 and the plug member 232 from extending outward. This technical solution arranges the plug positions 121 inward, thereby reducing the size of the conductive hardware 120, the base plate 110 and the pin unit 200, thereby further reducing the overall size of the adapter socket, making it miniaturized and portable.
[0038] In this embodiment, the two conductive hardware components 120 are located within the orthographic projection range of the first pin 231 assembly 210 and the second pin 231 assembly 220 toward the base. More specifically, the two conductive hardware components, respectively corresponding to the neutral and live wires, are positioned between the orthographic projections of the sliding members 230 on the first pin 231 assembly 210 and the second pin 231 assembly 220 toward the base plate 110, thereby further reducing the overall size of the conductive hardware components 120.
[0039] like Figure 7 The diagram shown is a schematic representation of the specific structure of the first pin 231 assembly 210 in this embodiment. The sliding member 230 on the first pin 231 assembly 210 includes two mounting portions 233 arranged side-by-side, with a clearance space 234 defined between the two mounting portions 233. A connecting portion 235 is provided between the two mounting portions 233 to connect them. The first pin 231 assembly 210 is provided with three-pole pins 231 corresponding to the E, L, and N poles respectively, and the three-pole pins 231 are respectively mounted on the two mounting portions 233. The connector 232 on the first pin 231 assembly 210 is disposed on one of the mounting portions 233. The connector 232 disposed on the first pin 231 assembly 210 includes an extension portion 2321 extending toward the other mounting portion 233. A bent portion 2322 is disposed on the end of the extension portion 2321, which is bent downward and interlocked with the insertion position 121. The orthographic projection of the bent portion 2322 toward the base plate 110 is located within the orthographic projection range of the mounting portion 233 toward the base plate 110 or within the clearance space 234.
[0040] In this embodiment, the third plug-in component is disposed between the first plug-in component and the second plug-in component. More specifically, the third pin component 240 is disposed within the clearance space 234. This reduces the spacing between the first pin component 231 210, the second pin component 231 220, and the third pin component 240, resulting in a smaller width of the pin unit 200.
[0041] In the first pin 231 assembly 210, the pin 231 corresponding to the ground wire is disposed on one mounting part 233, and the other two pins 231 corresponding to the live wire and the neutral wire are disposed on another mounting part 233, thus forming a triangular structure. The connector 232 for interlocking with the plug position 121 is disposed on the mounting part 233 with two pins 231, thus facilitating the connection with the pins 231. The connector 232 located on the first pin 231 assembly 210 is configured to have two parts, wherein the extension part 2321 extends toward the other mounting part 233, thereby ensuring that the plug position 121 located on the first pin 231 assembly 210 is within the range of the orthographic projection of the first pin 231 assembly 210 toward the base plate 110. Through the above structure, the reasonable arrangement of the direction and position of the plug position 121 can ensure the miniaturization of the size of the first plug position 121, and ensure the miniaturization and portability of the overall size of the adapter.
[0042] In this embodiment, the second pin 231 assembly 220 is configured as a European standard pin 231. That is, the sliding member 230 of the second pin 231 assembly 220 includes a telescopic part 236 and a linkage part 237 that are parallel to each other in the vertical direction and slidably connected to the bracket 100. The pin 231 for interfacing with an external socket is disposed on the telescopic part 236, and the linkage part 237 is provided with a through hole for the pin 231 to extend or retract. The plug member 232 on the second pin 231 assembly 220 is formed on the telescopic part 236, and one plug member 232 is disposed on the side of the telescopic part 236 facing the second pin 231 assembly 220, and the other plug member 232 is disposed on the side of the telescopic part 236 facing the first pin 231 assembly 210 or on the side adjacent to the side facing the first pin 231 assembly 210.
[0043] In this embodiment, one connector 232 on the second pin 231 assembly 220 faces the first pin 231 assembly 210, and the other connector 232 is disposed on the side of the slider 230 along its length. This structure prevents the connector 232 from extending away from the pin unit 200, thereby ensuring the size of the pin unit 200.
[0044] In this embodiment, the pin 231 on the first pin 231 assembly 210 corresponding to the E pole and the linkage portion 237 on the second pin 231 assembly 220 are close to each other. That is, during the sliding process of the first pin 231 assembly 210 or the second pin 231 assembly 220 along the guide post 112, the closely attached E pole pin 231 and linkage portion 237 can limit each other's position and ensure their stability during the sliding process.
[0045] In this embodiment, the two bent portions 2322 are flat, and the length direction of the bent portions 2322 is parallel to the length direction of the mounting portion 233. The insertion position 121 corresponding to the bent portion 2322 is provided with a flat insertion interface 1211. By setting the bent portion 2322 to be parallel to the length direction of the mounting portion 233, the bent portion 2322 forms a flattened mechanism. In this structure, the width dimension of the bent portion 2322 can be reduced, ensuring that the first pin 231 assembly 210 is more compact in width, further reducing the size of the pin unit 200. At the same time, by setting the bent portion 2322 to be flat and providing the insertion portion with a flat insertion interface 1211, a larger contact area can be ensured during the insertion of the connector 232 and the insertion position 121, ensuring the stability of the electrical connection.
[0046] like Figure 10 As shown, in this embodiment, a partition plate 101 is also provided on the bracket 100. The partition plate 101 is located outside the first plug assembly 210 and separates the plug unit 200 from the outside of the bracket 100. After the plug assembly is installed inside the housing, the bracket 100 is separated from the plug assembly by the partition plate 101, thereby creating a free space inside the housing. To increase the usability of the socket, a DC output component or a wireless charging module can be installed in this free space, thereby expanding the usability of the socket.
[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A compact plug assembly with an inwardly recessed socket, comprising a bracket installed inside a conversion socket and a plug unit slidably connected to the bracket, the plug unit sliding along the bracket and extending out of the bracket for interlocking with an external socket, the plug unit comprising at least three first plug assemblies, second plug assemblies, and third plug assemblies arranged side by side, characterized in that, The bracket includes a base plate, on which holes for the pin unit to extend and multiple guide posts are provided vertically. The bracket is also equipped with two conductive hardware corresponding to the L and N poles respectively. The first pin assembly, the second pin assembly, and the third pin assembly all include A sliding member, slidably connected to the guide post, further includes... The pin has one end formed on the slider and the other end extending towards the base plate. A connector, one end of which is fixed to the slider and electrically connected to the pin, and the other end extends downward; The conductive hardware is further provided with a plug-in position that is plugged into the plug-in, and the plug-in position is located within the range of the two sliding members at both ends of the plug unit projected toward the base plate.
2. The compact plug assembly with an inwardly recessed insertion position according to claim 1, characterized in that, The two conductive hardware components are located within the range of the first pin assembly and the second pin assembly projected toward the base.
3. A compact plug assembly with an inwardly recessed insertion position according to claim 1, characterized in that, The sliding member on the first pin assembly includes two mounting portions arranged side by side, with a clearance space defined between the two mounting portions. A connecting portion is provided between the two mounting portions to connect them. The first pin assembly is provided with three pins corresponding to E, L, and N poles, respectively, and the three pins are respectively mounted on the two mounting portions. A connector on the first pin assembly is disposed on one of the mounting portions. The connector on the first pin assembly includes an extension portion extending toward the other mounting portion. A bent portion is provided at the end of the extension portion, which bends downward and interlocks with the connector. The orthographic projection of the bent portion toward the base plate is located within the orthographic projection range of the mounting portion toward the base plate or within the clearance space.
4. A compact plug assembly with an inwardly recessed insertion position according to claim 3, characterized in that, The sliding member of the second plug assembly includes a telescopic part and a linkage part that are parallel to each other in the vertical direction and slidably connected to the bracket. The plug for interfacing with an external socket is disposed on the telescopic part, and the linkage part is provided with a through hole for the plug to extend or retract. The plug member on the second plug assembly is formed on the telescopic part, and one of the plug members is disposed on the side of the telescopic part facing the second plug assembly, and the other plug member is disposed on the side of the telescopic part facing the first plug assembly or on the side adjacent to the side facing the first plug assembly.
5. A compact plug assembly with an inwardly recessed insertion position according to claim 4, characterized in that, The pin on the first pin assembly corresponding to the E terminal is close to the linkage part on the second pin assembly.
6. A compact plug assembly with an inwardly recessed insertion position according to claim 3, characterized in that, The two bent portions have a flat structure, and the length direction of the bent portions is parallel to the length direction of the mounting portion; the plug-in position corresponding to the bent portion is provided with a flat plug-in interface.
7. A compact plug assembly with an inwardly recessed insertion position according to claim 3, characterized in that, The third pin assembly is disposed within the clearance space.
8. A compact plug assembly with an inwardly recessed insertion position according to claim 1, characterized in that, A partition plate is also provided on the bracket. The partition plate is located outside the first pin assembly and separates the pin unit from the outside of the bracket.