Multinational universal conversion socket

By designing a multi-national universal adapter, the problem of existing sockets only being able to power one appliance at a time has been solved. This enables universal use in different countries and allows multiple appliances to be plugged in simultaneously, improving user experience and safety.

CN223978264UActive Publication Date: 2026-03-06SHENZHEN XINGMAO ELECTRIC TECH CO LTD

Patent Information

Application Number
CN202520610579.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-06
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing adapters typically only allow one appliance to be used at a time, failing to meet the needs of multiple appliances simultaneously, resulting in a poor user experience.

Method used

A multi-national universal adapter socket has been designed, which includes multiple sliding input plug assemblies and output socket assemblies, with front and side socket structures and a protective door structure to ensure safety and stability.

Benefits of technology

It enables universal use in different countries, can meet the needs of multiple electrical appliances at the same time, and improves user experience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multinational universal type conversion socket, comprising a housing which is internally provided with an input plug assembly, an output socket assembly and a protection door assembly. The input plug assembly comprises a first plug assembly, a second plug assembly and a third plug assembly, and the first plug assembly, the second plug assembly and the third plug assembly are respectively connected with the shell in a sliding and limiting manner; the output socket assembly comprises a front jack structure and a side jack structure, the protection door assembly comprises a front protection door structure and a side protection door structure, the front protection door structure is aligned with the front jack structure and is used for protecting the front jack structure, and the side protection door structure is used for protecting the side jack structure. And the side protection door structure is aligned with the side jack structure and is used for providing protection for the side jack structure. According to the utility model, the front jacks and the side jacks are arranged, so that more than two electric appliances can be used at the same time, and the use favor of a user is improved.
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Description

Technical Field

[0001] This utility model relates to the field of adapter socket technology, specifically to a multi-national universal adapter socket. Background Technology

[0002] With the acceleration of globalization, cross-border travel and business trips are becoming increasingly frequent; however, inconsistencies in power standards and socket types between different countries and regions have caused inconvenience to our travel and business trip experiences. To meet the needs of business travelers and travelers for power compatibility and convenience, some adapter socket products have emerged on the market. Their appearance solves the problems of power and socket compatibility during travel, allowing us to travel with ease. However, existing adapter sockets typically only have one output port, which can only support one appliance at a time. For example, the rotary selector push-out multi-country power adapter disclosed in publication number CN101872911A requires users to wait if they need to use two or more appliances, resulting in a poor user experience. Utility Model Content

[0003] To address some or all of the problems existing in the prior art, this utility model provides a multi-national universal adapter socket, comprising a housing, within which are an input plug assembly, an output socket assembly, and a protective door assembly; the input plug assembly includes a first plug assembly, a second plug assembly, and a third plug assembly, which are slidably and limitably connected to the housing; the output socket assembly includes a front socket structure and a side socket structure, and the protective door assembly includes a front protective door structure and a side protective door structure, the front protective door structure being aligned with the front socket structure to provide protection for the front socket structure, and the side protective door structure being aligned with the side socket structure to provide protection for the side socket structure.

[0004] As a further improvement of this utility model, a slidable limiting baffle is provided inside the housing, and a pushing block is provided on the first plug assembly, the second plug assembly and the third plug assembly respectively. The pushing block extends out of the housing and can push the limiting baffle to slide inside the housing. A wedge-shaped guide sidewall is provided on the limiting baffle at the corresponding position of each pushing block. When one of the pushing blocks slides on the corresponding wedge-shaped guide sidewall, the other two wedge-shaped guide sidewalls abut against the corresponding pushing block.

[0005] As a further improvement of this utility model, the front socket structure includes a protective door bracket, which is connected to the housing. The protective door bracket is provided with a front composite socket that is compatible with Japanese, American, European and British standard sockets. The front protective door structure is connected to the protective door bracket and is used to block the front composite socket.

[0006] As a further improvement of this utility model, the front protective door structure includes a first sliding plate and a first return spring. The first sliding plate is slidably and limitedly connected to the protective door bracket. The upper end face of the first sliding plate and the front composite socket are respectively provided with a first insertion inclined surface. The two ends of the first return spring are respectively connected to the protective door bracket and the first sliding plate, and are used to push the first sliding plate to slide on the protective door bracket.

[0007] As a further improvement of this utility model, a plug-in spring is provided at the corresponding position of the front composite socket inside the housing. The plug-in spring is electrically connected to the input plug assembly, and the thickness of the plug-in spring is not less than 0.4 mm.

[0008] As a further improvement of this utility model, the side socket structure includes a side door seat, which is connected to the housing. The side door seat is provided with a side composite socket compatible with Japanese, American, European and British standard dual-socket holes. The side protective door structure is connected to the side door seat and is used to block the side composite socket.

[0009] As a further improvement of this utility model, the side protection door structure includes a second sliding plate and a second return spring. The second sliding plate is slidably connected to the side door strip seat. The upper end surfaces of the second sliding plate and the side composite socket are respectively provided with second insertion inclined surfaces. The two ends of the second return spring are respectively connected to the side door strip seat and the second sliding plate, and are used to push the second sliding plate to slide on the side door strip seat.

[0010] As a further improvement of this utility model, a circuit board is provided inside the housing, and a DC output socket is provided on the circuit board. The circuit board is electrically connected to the input plug assembly.

[0011] As a further improvement of this utility model, the DC output socket includes a USB socket and a Type-C socket.

[0012] As a further improvement of this utility model, the housing includes a bottom shell and a top shell, the bottom shell and the top shell are fixedly connected, and a decorative cover is glued to the upper surface of the top shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a first plug assembly, a second plug assembly, and a third plug assembly, enables it to be used with a variety of standard sockets, thereby meeting the usage needs of different countries.

[0015] 2. By setting up a front socket structure and a side socket structure, this utility model can provide at least two sets of output sockets, which can simultaneously meet the needs of two or more electrical appliances, thereby improving practicality and enhancing user experience.

[0016] 3. This utility model provides protective door structures at corresponding positions of the front socket structure and the side socket structure, which provide protection for each socket structure and improve the safety of the adapter socket. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the present utility model;

[0020] Figure 3 This is an exploded structural diagram of an embodiment of the present invention. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0022] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, a multi-national universal adapter includes a housing 1, which contains an input plug assembly, an output socket assembly, and a protective door assembly. The input plug assembly is used to connect to external AC power, the output socket assembly is used to connect to a load, and the protective door assembly is used to protect the output socket assembly.

[0025] The input plug assembly includes a first plug assembly 2, a second plug assembly 3, and a third plug assembly 4, which are slidably and limitably connected to the housing 1. The first plug assembly 2 has a Japanese, American, and Australian standard plug structure, making it suitable for use in Japan, the United States, and Australia; the second plug assembly 3 has a British standard plug structure, making it suitable for use in the United Kingdom; and the third plug assembly 4 has a European plug structure, making it suitable for use in EU countries. For example, when a user is traveling in the United States, they can slide the first plug assembly 2 out of the housing 1, allowing it to be plugged into a US power outlet. This adapter socket, by incorporating the first plug assembly 2, second plug assembly 3, and third plug assembly 4, is compatible with multiple standard sockets, thus meeting the needs of different countries and improving its versatility.

[0026] In other embodiments, the first plug assembly 2, the second plug assembly 3, and the third plug assembly 4 may also be plug structures of other national types, which is not limited by this invention.

[0027] The first plug assembly 2, the second plug assembly 3, and the third plug assembly 4 can be selected from existing plug structures, and the present invention does not limit their specific structures.

[0028] The output socket assembly includes a front socket structure 5 and a side socket structure 6. By setting the front socket structure 5 and the side socket structure 6, it can have at least two sets of output sockets, which can meet the needs of two or more electrical appliances at the same time, improving practicality and thus enhancing user experience.

[0029] The protective door assembly includes a front protective door structure 7 and a side protective door structure 8. The front protective door structure 7 is aligned with the front socket structure 5 to provide protection for the front socket structure 5. The side protective door structure 8 is aligned with the side socket structure 6 to provide protection for the side socket structure 6. By providing the front protective door structure 7 and the side protective door structure 8, protection can be provided for both the front socket structure 5 and the side socket structure 6, reducing the possibility of electric shock and thus improving the safety of the adapter socket.

[0030] To further enhance safety, a sliding limit baffle 9 is provided inside the housing 1. Push blocks 10 are provided on the first plug assembly 2, the second plug assembly 3, and the third plug assembly 4, extending out of the housing 1. Normally, all plugs on the input plug assembly are retracted. When needed, the user can push the corresponding push block 10 to extend the plugs on the first plug assembly 2, the second plug assembly 3, or the third plug assembly 4, and then insert the corresponding plug into a power outlet to connect to the power supply. The push block 10 can slide the limit position on the housing 1. The limit baffle 9 restricts only one set of plugs from extending at a time, preventing the other two plug assemblies from extending, thus ensuring safety during use.

[0031] Specifically, the limiting baffle 9 is provided with wedge-shaped guide sidewalls 91 at corresponding positions to each push block 10. The push block 10 can slide on the corresponding wedge-shaped guide sidewall 91, and the wedge-shaped guide sidewall 91 can also abut against the corresponding push block 10. When one of the push blocks 10 can slide on the corresponding wedge-shaped guide sidewall 91, the push block 10 can push the plug of the corresponding input plug assembly to extend. At this time, the other two wedge-shaped guide sidewalls 91 abut against the corresponding push blocks 10, and the wedge-shaped guide sidewalls 91 can prevent the plugs of the other two plug assemblies from extending, thereby ensuring that the plug of one and only one plug assembly can be fully extended at the same time.

[0032] The front socket structure 5 includes a protective door bracket 51. A mounting bracket 101 is fixedly installed inside the housing 1. The protective door bracket 51 is fixedly connected to the mounting bracket 101. The protective door bracket 51 has a front composite socket 52 compatible with Japanese, American, European, and British standard sockets. The front composite socket 52 includes various types of three-prong sockets and various types of two-prong sockets, allowing this multi-national universal adapter to be used by users in different countries, improving its versatility. A spring contact 53 is provided on the housing 1 at a corresponding position to the front composite socket 52, and the spring contact 53 is electrically connected to the input plug assembly. A front protective door structure 7 is installed on the protective door bracket 51 and is used to seal the front composite socket 52; the front protective door structure 7 prevents users from accidentally inserting their fingers into the front composite socket 52, thus avoiding electric shock.

[0033] Specifically, the front protective door structure 7 includes a first sliding piece 71 and a first return spring 72. The first sliding piece 71 is slidably limited to the protective door bracket 51. The upper end face of the first sliding piece 71 at the corresponding position of the front composite socket 52 is provided with a first insertion inclined surface 73. The two ends of the first return spring 72 are respectively connected to the protective door bracket 51 and the first sliding piece 71, and are used to push the first sliding piece 71 to slide on the protective door bracket 51. During use, when the user inserts the plug of the external load into the front composite socket 52, the plug first abuts against the first insertion inclined surface 73. As the plug continues to be inserted, it will squeeze the first insertion inclined surface 73 and push the first sliding piece 71 to slide on the protective door bracket 51. The first sliding piece 71 compresses the first return spring 72. At the same time, after the first sliding piece 71 slides, it will open the front composite socket 52, so that the plug of the external load can pass through the front composite socket 52 and finally be inserted and fixed with the insertion spring 53 to realize power supply. After use, the user unplugs the external load plug. When the plug is pulled out of the front composite socket 52, the first sliding piece 71 will be pushed to return to its original position under the elastic force of the first reset spring 72 until the first sliding piece 71 abuts against the protective door bracket 51. During the sliding process of the first sliding piece 71, the front composite socket 52 will be resealed.

[0034] In this embodiment, there are two front protective door structures 7. In other embodiments, the number of front protective door structures 7 can be any other number.

[0035] To improve the stability and safety of external load connection, in this embodiment, the thickness of the plug spring 53 is not less than 0.4 mm, and the contact area between the plug spring 53 and the external load plug is not less than 25 square millimeters. By thickening the plug spring 53 and increasing the contact area, it can withstand more load; according to the applicant's actual measurement, the maximum load current is not less than 10A.

[0036] The side socket structure 6 includes a side door seat 61, which is fixedly connected to the mounting bracket 101. The side door seat 61 is provided with a side composite socket 62 compatible with Japanese, American, European, and British standard two-prong sockets. In this embodiment, the side composite socket 62 is a two-prong socket. In other embodiments, the side composite socket 62 can also be a three-prong socket or any other type of socket structure. A contact spring is provided on the mounting bracket 101 at a position corresponding to the side composite socket 62. The contact spring is in contact with the insertion spring 53. A side protection door structure 8 is provided on the side door seat 61. The side protection door structure 8 is used to block the side composite socket 62. The side protection door structure 8 can prevent users from accidentally inserting their fingers into the side composite socket 62 and causing electric shock.

[0037] Specifically, the side protection door structure 8 includes a second sliding plate 81 and a second return spring 82. The second sliding plate 81 is slidably limited to the side door seat 61. The upper surfaces of the second sliding plate 81 and the corresponding positions of the side composite socket 62 are respectively provided with second insertion inclined surfaces 83. The two ends of the second return spring 82 are respectively connected to the side door seat 61 and the second sliding plate 81, used to push the second sliding plate 81 to slide on the side door seat 61. During use, when the user inserts the plug of an external load into the side composite socket 62, the plug first abuts against the second insertion inclined surface 83. As the plug continues to be inserted, it will compress the second insertion inclined surface 83 and push the second sliding plate 81 to slide on the side door seat 61. The second sliding plate 81 compresses the second return spring 82. Simultaneously, after the second sliding plate 81 slides, it will open the side composite socket 62, allowing the plug of the external load to pass through the side composite socket 62 and finally be inserted and fixed with the contact spring, thus achieving power supply. After use, the user unplugs the external load plug. When the plug is pulled out of the side composite socket 62, the second sliding piece 81 will be pushed to return to its original position under the elastic force of the second return spring 82 until the second sliding piece 81 abuts against the side door strip seat 61. During the sliding process of the second sliding piece 81, the side composite socket 62 will be resealed.

[0038] The mounting bracket 101 also has a circuit board 11, on which multiple DC output sockets 12 are soldered. The circuit board 11 is electrically connected to the input plug assembly. By providing the DC output sockets 12, this multi-national universal adapter can directly charge mobile devices such as mobile phones via an external power cord, thus improving its functionality.

[0039] In this embodiment, the DC output socket 12 includes two USB sockets and two Type-C sockets; in other embodiments, the number of DC output sockets 12 can be any other number, and the type of DC output socket 12 can also be any other type, which is not limited by this utility model.

[0040] For ease of assembly, in this embodiment, the housing 1 includes a bottom shell 102 and a front shell 103. A mounting bracket 101 is fixedly installed inside the bottom shell 102, and the front shell 103 is fixedly connected to the bottom shell 102 by screws. When the front shell 103 and the bottom shell 102 are closed, they form a mounting cavity, facilitating the installation of the mounting bracket 101 and other structural components. A decorative cover 104 is adhered to the upper surface of the front shell 103, making the appearance of this multi-national universal adapter more aesthetically pleasing and smooth.

[0041] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A multi-national conversion socket, characterized by: The shell is internally provided with an input plug assembly, an output socket assembly and a protection door assembly; The input plug assembly comprises a first plug assembly, a second plug assembly and a third plug assembly, which are respectively slidably and limitingly connected with the shell; The output socket assembly comprises a front jack structure and a side jack structure, and the protection door assembly comprises a front protection door structure and a side protection door structure, the front protection door structure is in position with the front jack structure for providing protection for the front jack structure, and the side protection door structure is in position with the side jack structure for providing protection for the side jack structure.

2. The multi-national adapter socket of claim 1, wherein: The shell is internally provided with a slidable limiting baffle, the first plug assembly, the second plug assembly and the third plug assembly are respectively provided with a push block, the push block extends out of the shell, the push block can push the limiting baffle to slide in the shell, and the limiting baffle is respectively provided with a wedge-shaped guide side wall at a position corresponding to each push block; When one of the push blocks can slide on the corresponding wedge-shaped guide side wall, the other two wedge-shaped guide side walls are in limiting abutment with the corresponding push blocks.

3. The multi-national adapter socket of claim 1, wherein: The front jack structure comprises a protection door support connected with the shell, the protection door support is provided with a front composite jack compatible with Japanese, American, European and British standard jacks, the front protection door structure is connected with the protection door support, and the front protection door structure is used for plugging the front composite jack.

4. The multi-national adapter socket of claim 3, wherein: The front protection door structure comprises a first sliding sheet and a first return spring, the first sliding sheet is slidably and limitingly connected with the protection door support, the first sliding sheet is respectively provided with a first insertion inclined surface at an upper end face corresponding to the front composite jack, and the two ends of the first return spring are respectively connected with the protection door support and the first sliding sheet for pushing the first sliding sheet to slide on the protection door support.

5. The multi-national adapter socket of claim 3, wherein: The shell is internally provided with an insertion spring corresponding to the front composite jack, the insertion spring is electrically connected with the input plug assembly, and the thickness of the insertion spring is not less than 0.4 mm.

6. The multi-national adapter socket of claim 1, wherein: The side jack structure comprises a side door strip seat connected with the shell, the side door strip seat is provided with a side composite jack compatible with Japanese, American, European and British standard jacks, the side protection door structure is connected with the side door strip seat, and the side protection door structure is used for plugging the side composite jack.

7. The multi-national adapter socket of claim 6, wherein: The side protection door structure comprises a second sliding sheet and a second return spring, the second sliding sheet is slidably connected with the side door strip seat, the second sliding sheet is respectively provided with a second insertion inclined surface at an upper end face corresponding to the side composite jack, and the two ends of the second return spring are respectively connected with the side door strip seat and the second sliding sheet for pushing the second sliding sheet to slide on the side door strip seat.

8. The multi-national adapter socket of claim 1, wherein: The shell is internally provided with a circuit board, the circuit board is provided with a direct current output socket, and the circuit board is electrically connected with the input plug assembly.

9. The multi-national adapter socket of claim 8, wherein: The direct current output socket comprises a USB socket and a Type-C socket.

10. The multi-national adapter socket of any one of claims 1-9, wherein: The shell comprises a bottom shell and a face shell, the bottom shell is fixedly connected with the face shell, and a decorative face cover is bonded on the upper end face of the face shell.

Citation Information

Patent Citations

  • Rotatable and selectable push type multinational power source adapter

    CN101872911A

Cited By

  • Multinational universal conversion socket

    CN122159004A