A charger with retractable cord and multiple power outlets

Abstract

The utility model discloses a kind of multi-power supply plug's charger of telescopic wire, by adopting single ground wire, zero line and firewire metal piece and respectively setting multiple conducting points, again with the core design of integrated combination formed by insulating structure combination, bring many significant beneficial effects. First, the structure fundamentally simplifies internal layout, greatly reduces the number of parts and connecting point, not only reduces production cost and assembly complexity, improves the consistency and reliability of product, also realizes the miniaturization of charger by compact space utilization. Secondly, the cooperation of integrated combination and the multiple sides of shell, so that a single charger can simultaneously power multiple appliances, greatly improve the space utilization efficiency and user's use convenience.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a charger with a retractable cable and multiple power outlets. Background Technology

[0002] With the widespread use of electronic devices, users often need to charge multiple devices simultaneously, leading to a growing demand for chargers with multiple power outlets. Currently, most multi-outlet chargers on the market typically have a separate set of metal sockets (including ground, neutral, and live wire sockets) for each outlet inside a single casing, connected in parallel by internal wires or metal strips. This structure has a fragmented internal layout with numerous components, resulting in cumbersome assembly processes, high production costs, and significant space consumption, hindering miniaturization and compact design. Furthermore, the numerous connection points pose potential risks of loose connections, increased contact resistance, and even short circuits. Therefore, there is a need for multi-outlet chargers with more integrated structures, easier assembly, and higher space utilization. Utility Model Content

[0003] The main purpose of this invention is to propose a multi-power socket charger with a retractable cable, aiming to provide a multi-socket charger with a more integrated structure, easier assembly, and higher space utilization.

[0004] To achieve the above objectives, this utility model proposes a charger with multiple power outlets and a retractable cable, including a housing, a power cord, and a retractable data cable.

[0005] The housing contains a ground wire metal component, a neutral wire metal component, and a live wire metal component.

[0006] The ground wire metal component has multiple ground wire conductive points, the neutral wire metal component has multiple neutral wire conductive points, and the live wire metal component has multiple live wire conductive points;

[0007] The ground wire metal component, neutral wire metal component, and live wire metal component are interlocked and fixed by an insulating structure to form an assembly. The insulating structure is provided between and around each metal component to keep the three components mutually insulated.

[0008] The assembly is disposed in the housing such that the plurality of ground wire conductive points, the plurality of neutral wire conductive points and the plurality of live wire conductive points are respectively exposed on at least three different sides of the housing, so as to form a power socket on each of the at least three different sides;

[0009] The retractable data cable is located at the bottom inside the housing, with one end passing through the housing and extending to the outside.

[0010] Preferably, the insulation structure includes multiple interlocking or assembled insulation components;

[0011] The multiple insulating components together form a support frame for accommodating and fixing the ground wire metal component, the neutral wire metal component, and the live wire metal component, ensuring that the ground wire metal component, the neutral wire metal component, and the live wire metal component remain insulated from each other in any direction.

[0012] Preferably, a connector is provided on the inner side wall of the housing corresponding to the position of each power socket;

[0013] The connector is provided with a plug-in cavity, and the bottom of the plug-in cavity is provided with guide channels that correspond to and communicate with the ground wire conductive position, neutral wire conductive position and live wire conductive position on the assembly, respectively.

[0014] The pins of the external plug can pass through the socket and the guide channel in sequence before being inserted into the power socket.

[0015] Preferably, it is also equipped with a safety door;

[0016] The safety door blocks the power socket when not in use;

[0017] When the pins of the external plug are inserted, the safety door can be moved to expose the power socket so that the pins of the external plug can be inserted into the power socket.

[0018] Preferably, the security door includes a base and a moving part;

[0019] The base is fixedly disposed between the connecting seat and the assembly, and is provided with a receiving cavity;

[0020] The movable component is movably disposed within the receiving cavity;

[0021] The movable component has a guide channel corresponding to the power socket;

[0022] The movable component has a first position and a second position:

[0023] When the movable component is in the first position, the guide channel of the movable component is offset from the power socket to shield the power socket;

[0024] When the movable component is in the second position, the guide channel of the movable component is aligned with the power socket to expose the power socket;

[0025] The safety door also includes a reset elastic element, which applies an elastic force to the movable element to keep it tending toward a first position;

[0026] The sidewall of the guide channel is configured as a guide surface. When the pins of the external plug are inserted, the pins contact the guide surface and drive the moving member to overcome the elastic force of the reset elastic member and move from the first position to the second position.

[0027] Preferably, circuit boards are also included;

[0028] The circuit board is disposed inside the housing and is electrically connected to the neutral wire metal component and the live wire metal component, for converting alternating current into direct current;

[0029] One end of the retractable data cable is electrically connected to the circuit board, and the other end can extend out of the housing to connect to external devices.

[0030] Preferably, a cover is also provided inside the housing;

[0031] The cover has a storage cavity for accommodating the telescopic data cable. The assembly is installed and fixed on the outer wall of the cover and is supported and fixed inside the housing by the cover.

[0032] Preferably, the outer surface of the housing is provided with a slot;

[0033] The exposed connector of the retractable data cable can be accommodated and positioned within the slot, and is held in place by a magnetic adsorption structure.

[0034] Preferably, the housing is also provided with at least one USB interface.

[0035] Preferably, the retractable data cable is located at the bottom inside the housing, with one end of the retractable data cable passing through the rear side wall of the housing and extending to the outside.

[0036] The assembly is positioned above the retractable data cable;

[0037] The three power sockets are respectively located on the left side wall, the top side wall, and the right side wall of the housing;

[0038] One end of the power cord passes through the front side wall of the housing and is electrically connected to the neutral wire and the live wire.

[0039] This utility model's technical solution, through its core design of using a single ground, neutral, and live wire metal component with multiple conductive points, combined with an insulating structure to form an integrated assembly, brings several significant benefits. First, this structure fundamentally simplifies the internal layout, significantly reducing the number of parts and connection points. This not only lowers production costs and assembly complexity, improving product consistency and reliability, but also achieves miniaturization of the charger through compact space utilization. Second, the integrated assembly and the cooperation of multiple sides of the housing allow a single charger to power multiple devices simultaneously, greatly improving space utilization efficiency and user convenience. Furthermore, the supporting frame formed by the insulating structure and the optional independent safety door design provide multi-layered, all-around reliable insulation protection for live components, effectively preventing the risk of electric shock caused by foreign object insertion or internal short circuits, significantly enhancing safety performance. In addition, the integrated design of a retractable data cable, a dedicated storage cavity, and a magnetic card slot solves the problems of tangled, messy, and inconvenient storage of traditional data cables, while the additional USB interface further expands the charging function, providing users with flexible and diverse charging options. In summary, this utility model successfully integrates structural simplification, space optimization, safety assurance, and ease of use, providing a multi-power outlet charging solution that is feature-rich, safe, reliable, and offers a better user experience. Attached Figure Description

[0040] Figure 1 This is a first-angle perspective view of the present invention;

[0041] Figure 2 This is a second perspective view of the present invention;

[0042] Figure 3 This is an exploded view of the present invention;

[0043] Figure 4 This is a schematic diagram of the connecting seat and the safety door;

[0044] Figure 5 This is a schematic diagram of the assembly;

[0045] Figure 6 This is an exploded view of the assembly.

[0046] Figure 7 This is a schematic diagram of the power cord and power socket of this utility model when they conform to European standards. Detailed Implementation

[0047] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0048] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0049] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0050] This utility model proposes a charger with multiple power outlets and a retractable cable.

[0051] In this embodiment of the utility model, such as Figures 1 to 6 As shown, the charger with retractable cable and multiple power outlets includes a housing 1, a power cord 2, a retractable data cable 3, an assembly 100, a circuit board 200, and a safety door, among other components.

[0052] Specifically, the housing 1 is roughly square, with an internal cavity 94. The front side wall of the housing 1 has a through hole for the power cable 2 to pass through, and the rear side wall has an opening for the retractable data cable 3 to extend out.

[0053] Specifically, the assembly 100 is the core conductive structure of the charger, which is composed of a ground wire metal component 4, a neutral wire metal component 5, and a live wire metal component 6 connected by an insulating structure 7. The ground wire metal component 4 has at least three outwardly extending ground wire conductive positions 41, the neutral wire metal component 5 has at least three neutral wire conductive positions 51, and the live wire metal component 6 has at least three live wire conductive positions 61. The insulating structure 7 is composed of multiple insulating components 71 made of engineering plastics, which are assembled together by snap-fit ​​to form a complete support frame. This support frame interlocks and fixes the ground wire metal component 4, the neutral wire metal component 5, and the live wire metal component 6 inside, ensuring reliable insulation isolation between the three in any direction, thereby forming a robust integrated assembly 100.

[0054] Specifically, the assembly 100 is located in the center of the interior of the housing 1. Its three ground wire conductive points 41, three neutral wire conductive points 51, and three live wire conductive points 61 are exposed on the inner sides of the left, upper, and right side walls of the housing 1, respectively. Corresponding to these three positions, a connecting seat 8 is fixedly installed on the inner side wall of the housing 1. Each connecting seat 8 has a plug-in cavity 81, and the bottom of the plug-in cavity 81 has multiple guide channels 82. After the assembly 100 is installed, these guide channels 82 are aligned and connected to the corresponding ground wire conductive point 41, neutral wire conductive point 51, and live wire conductive point 61 (which together constitute the power socket). The pins of the external power plug can be inserted sequentially into the plug-in cavity 81, through the guide channels 82, and finally into the power socket on the assembly 100 to achieve electrical connection.

[0055] Specifically, to ensure safety, a safety door is provided between each connector 8 and the assembly 100. The safety door includes a base 91 fixed to the bottom of the connector 8 and a movable member 92 movably disposed within a receiving cavity 94 of the base 91. The movable member 92 has a guide channel 93 corresponding to the power socket. Under the elastic force of a return elastic element, such as a spring, the movable member 92 is normally held in the first position, at which point its guide channel 93 is completely offset from the power socket below, thus physically shielding the socket and preventing foreign objects from being inserted. When charging is required, the prongs of the external plug first contact the guide surface formed by the sidewall of the guide channel 93. During continued insertion, the prongs apply a lateral pushing force to the movable member 92 through the guide surface, causing it to overcome the elastic force of the return spring and slide to the second position. In the second position, the guide channel 93 on the movable member 92 is precisely aligned with the power socket, allowing the prongs to pass smoothly and be inserted, completing the conductive connection. Specifically, the bottom wall of the receiving cavity 94 is provided with a clearance space to facilitate the passage of the insertion pin.

[0056] Specifically, a cover 300 is provided at the inner bottom of the housing 1, and the cover 300 forms a storage cavity to accommodate the retractable data cable 3. The assembly 100 is directly installed and fixed to the top outer wall of the cover 300, thereby achieving support and positioning within the housing 1 through the cover 300. This design makes the internal structure compact and easy to assemble. It should be noted that the retractable data cable 3 is prior art, and its specific structural principle will not be described in detail here.

[0057] Specifically, the circuit board 200 is disposed within the housing 1 space beside the cover 300. The AC input terminal of the circuit board 200 is electrically connected to the neutral wire 5 and the live wire 6 via wires to obtain AC power. The circuit board 200 is equipped with conventional AC-DC conversion circuits such as rectification and filtering, as well as several electronic components, for converting AC power to DC power. One end of the retractable data cable 3 is electrically connected to the DC output terminal of the circuit board 200, and the other end extends through an opening on the rear side of the housing 1, with a USB-C connector at the end, or other types of connectors such as Lightning. It is understood that the retractable data cable 3 can also be electrically connected in other ways.

[0058] Specifically, a slot 11 is provided on the surface of the housing 1. When the retractable data cable 3 is not in use and is retracted, its connector can be inserted and positioned in the slot 11. The slot 11 is embedded with a magnetic adsorption structure, such as a magnet, and a magnet or magnetically conductive metal sheet is also provided at the corresponding position inside the connector. The connector is firmly fixed in the slot 11 by magnetic adsorption, preventing it from shaking.

[0059] Specifically, one or more USB ports 400, such as USB-A or USB-C ports, are provided on the side of the housing 1. These USB ports 400 are electrically connected to the circuit board 200 inside the housing 1 and can draw DC power from the circuit board 200 to provide charging interfaces for additional devices.

[0060] The working process of this embodiment is as follows: The user connects the charger's power cord 2 to the mains power, and AC power is transmitted through the power cord 2 to the neutral wire metal part 5 and the live wire metal part 6. When the user inserts the power plug of an external appliance into any power socket on the side of the housing 1, the plug pins drive the safety door to move and eventually contact the corresponding metal part in the assembly 100, and the appliance receives AC power. At the same time, the user can pull out the retractable data cable 3 and insert its connector into a mobile phone or other device for DC charging; alternatively, an additional data cable 3 can be used to connect to the USB interface 400 on the housing 1 to charge the device. When not in use, the connector of the retractable data cable 3 is snapped into the slot 11 for magnetic fixation, and the coil spring structure inside the retractable data cable 3 will automatically retract the data cable 3.

[0061] This utility model's technical solution, through its core design of using a single ground, neutral, and live wire metal component with multiple conductive points, combined with an insulating structure to form an integrated assembly, brings several significant benefits. First, this structure fundamentally simplifies the internal layout, significantly reducing the number of parts and connection points. This not only lowers production costs and assembly complexity, improving product consistency and reliability, but also achieves miniaturization of the charger through compact space utilization. Second, the integrated assembly and the cooperation of multiple sides of the housing allow a single charger to power multiple devices simultaneously, greatly improving space utilization efficiency and user convenience. Furthermore, the supporting frame formed by the insulating structure and the optional independent safety door design provide multi-layered, all-around reliable insulation protection for live components, effectively preventing the risk of electric shock caused by foreign object insertion or internal short circuits, significantly enhancing safety performance. In addition, the integrated design of a retractable data cable, a dedicated storage cavity, and a magnetic card slot solves the problems of tangled, messy, and inconvenient storage of traditional data cables, while the additional USB interface further expands the charging function, providing users with flexible and diverse charging options. In summary, this utility model successfully integrates structural simplification, space optimization, safety assurance, and ease of use, providing a multi-power outlet charging solution that is feature-rich, safe, reliable, and offers a better user experience.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A charger with a retractable cord and multiple power outlets, characterized in that: Includes housing (1), power cord (2) and retractable data cable (3); The housing (1) is provided with a ground wire metal part (4), a neutral wire metal part (5) and a live wire metal part (6). The ground wire metal part (4) has multiple ground wire conductive points (41), the neutral wire metal part (5) has multiple neutral wire conductive points (51), and the live wire metal part (6) has multiple live wire conductive points (61). The ground wire metal component (4), the neutral wire metal component (5), and the live wire metal component (6) are interlocked and fixed by an insulating structure (7) to form a combination (100). The insulating structure (7) is provided between and around each metal component to keep the three insulated from each other. The assembly (100) is disposed in the housing (1) such that the plurality of ground wire conductors (41), the plurality of neutral wire conductors (51) and the plurality of live wire conductors (61) are exposed on at least three different sides of the housing (1) to form a power socket on each of the at least three different sides; The retractable data cable (3) is located at the bottom of the housing (1), with one end of the retractable data cable (3) passing through the housing (1) and extending to the outside.

2. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: The insulation structure (7) includes multiple interlocking or assembled insulation components (71); The plurality of insulating elements (71) together form a support frame for accommodating and fixing the ground metal element (4), the neutral metal element (5) and the live metal element (6), ensuring that the ground metal element (4), the neutral metal element (5) and the live metal element (6) remain insulated from each other in any direction.

3. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: A connector (8) is provided on the inner wall of the housing (1) corresponding to the position of each power socket. The connector (8) is provided with a plug-in cavity (81), and the bottom of the plug-in cavity (81) is provided with a guide channel (82) that corresponds to and communicates with the ground wire conductive position (41), neutral wire conductive position (51) and live wire conductive position (61) on the assembly (100). The pins of the external plug can pass through the plug cavity (81) and the guide channel (82) in sequence before being inserted into the power socket.

4. The charger with retractable cable and multiple power outlets as described in claim 3, characterized in that: It is also equipped with a safety door; The safety door blocks the power socket when not in use; When the pins of the external plug are inserted, the safety door can be moved to expose the power socket so that the pins of the external plug can be inserted into the power socket.

5. The charger with retractable cable and multiple power outlets as described in claim 4, characterized in that: The safety door includes a base (91) and a movable component (92); The seat (91) is fixedly disposed between the connecting seat (8) and the assembly (100), and is provided with a receiving cavity (94). The movable component (92) is movably disposed within the receiving cavity (94); The movable part (92) has a guide channel (93) corresponding to the power socket. The movable component (92) has a first position and a second position: When the movable part (92) is in the first position, the guide channel (93) of the movable part (92) is offset from the power socket to shield the power socket; When the movable part (92) is in the second position, the guide channel (93) of the movable part (92) is aligned with the power socket to expose the power socket; The safety door also includes a reset elastic element that applies an elastic force to the movable element (92) to keep it tending toward a first position; The sidewall of the guide channel (93) is configured as a guide surface. When the pin of the external plug is inserted, the pin contacts the guide surface and drives the moving member (92) to overcome the elastic force of the reset elastic member and move from the first position to the second position.

6. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: It also includes circuit boards (200); The circuit board (200) is disposed inside the housing (1) and electrically connected to the neutral wire metal part (5) and the live wire metal part (6) for converting alternating current into direct current. One end of the retractable data cable (3) is electrically connected to the circuit board (200), and the other end can extend out of the housing (1) to connect to external devices.

7. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: The housing (1) is also provided with a cover (300); The cover (300) is provided with a storage cavity for accommodating the telescopic data cable (3). The assembly (100) is installed and fixed on the outer wall of the cover (300) and is supported and fixed in the housing (1) by the cover (300).

8. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: The outer surface of the housing (1) is provided with a slot (11); The connector of the exposed end of the telescopic data cable (3) can be accommodated and positioned in the card slot (11), and is fixed to the card slot (11) by a magnetic adsorption structure.

9. The charger with retractable cable and multiple power outlets as described in claim 1, characterized in that: The housing (1) is also provided with at least one USB interface (400).

10. The charger with retractable cable and multiple power outlets as described in any one of claims 1 to 9, characterized in that: The assembly (100) is positioned above the retractable data cable (3); The three power sockets are respectively provided on the left side wall, the upper side wall and the right side wall of the housing (1); One end of the power cord (2) passes through the front side wall of the housing (1) and is electrically connected to the neutral wire metal part (5) and the live wire metal part (6).

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