A charging dock for charging personal care devices

By using conductive pins and conductive metal rings for all-around contact in the charging base and a wire storage cavity design, the problem of plugging and unplugging the charging base is solved, achieving fast, damage-free charging connection and neat storage.

CN224289350UActive Publication Date: 2026-05-26WENZHOU LANGCHI IND CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU LANGCHI IND CORP LTD
Filing Date
2025-06-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing charging docks for personal care devices are difficult to align quickly during plugging and unplugging, which can easily damage the charging interface, and the charging cable is inconvenient to store.

Method used

A charging base was designed that uses conductive pins to make full contact with the conductive metal ring of the personal care device. Combined with a cable storage cavity, it achieves insertion without alignment and avoids clutter by winding and storing the charging cable.

Benefits of technology

It achieves a fast, damage-free charging connection, and the charging cable is neatly stored, making it easy to use and store.

✦ Generated by Eureka AI based on patent content.

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Abstract

A charging base for charging a personal care device includes: a base body, with an insertion cavity adapted to the rear end of the personal care device, a cavity for accommodating a charging PCB board, and a cable storage cavity located below the base body. The cable storage cavity has a winding portion for winding and storing the charging cable. The charging PCB board has at least two conductive pins, some of which pass through the base body and are positioned on the bottom surface of the insertion cavity, with the conductive pins arranged sequentially outward from the center of the insertion cavity. A charging cable is detachably connected to the charging PCB board and can be wound and stored within the cable storage cavity. The conductive pins within the insertion cavity are arranged from the inside out, and combined with the inner and outer conductive rings located at the bottom of the personal care device, omnidirectional contact with the conductive pins is achieved, eliminating the need to consider orientation during insertion. The cable storage cavity at the bottom stores the charging cable, preventing clutter caused by excessive cable length.
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Description

Technical Field

[0001] This utility model relates to personal care devices, specifically to a charging base for charging personal care devices. Background Technology

[0002] Personal care devices such as shavers, hair clippers, and nose hair trimmers require a power source, so they are generally equipped with power cords. For convenience, rechargeable batteries are typically used. These products can be charged either directly with a power cord or via a charging dock. Existing charging docks generally use an interface alignment method, such as the previously used TPCY-C interface, where the two interfaces are plugged into each other for charging. Because each insertion and removal requires alignment, this is difficult and can easily damage the charging interfaces. Therefore, a charging pin method was introduced, where the charging pins on the device are aligned with the charging pads on the charging dock to establish an electrical connection. However, this method requires a limiting mechanism on the charging dock to ensure that the personal care device aligns perfectly after insertion. This, in turn, necessitates adjusting the orientation of the personal care device each time it is charged for accurate alignment.

[0003] Therefore, a charging dock that can quickly align and charge is needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a charging base for charging personal care devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A charging dock for charging personal care devices, comprising:

[0007] The base has an insertion cavity on its upper part that is adapted to the rear end of the body of the personal care device, a cavity for accommodating the charging PCB board, and a wire storage cavity located below the base. The wire storage cavity has a winding part for winding and storing the charging cable.

[0008] A charging PCB board has at least two conductive pins, with a portion of each pin passing through the base and positioned on the bottom surface of the insertion cavity, and the conductive pins are arranged sequentially outward from the center of the insertion cavity.

[0009] The charging cable is detachably connected to the charging PCB board and can be wound and stored in the cable storage cavity.

[0010] The seat body includes:

[0011] A cover with an insertion cavity formed on its upper part;

[0012] The middle cover is circular, with the middle section used to accommodate the insertion cavity;

[0013] The base has an upper part that fits with the middle cover to form a cavity, and a wire storage cavity at the lower part.

[0014] The base has a cover plate that can be detachably connected to it.

[0015] A gap is provided between the cover plate and the cavity wall of the wire storage cavity.

[0016] The winding part is provided with a mating hole, and the surface of the cover plate is provided with an insertion part that matches the mating hole.

[0017] The base has several anti-slip blocks circumferentially arranged at its bottom.

[0018] The upper part of the middle cover is recessed downward to form a mounting groove. The charging PCB board includes an interface board and a charging management board. The interface board is placed in the mounting groove, and the charging management board is located above the mounting groove. The two are electrically connected. The mounting groove has a through hole corresponding to the interface direction of the interface board. The through hole connects to the wire storage cavity.

[0019] The upper side of the middle cover is symmetrically provided with counterweight grooves, and counterweight blocks are provided in the counterweight grooves.

[0020] The base has a notch on one side.

[0021] The beneficial effects of this utility model are as follows: By setting the conductive PIN pin in the insertion cavity, which is arranged from the inside out, and combined with the inner and outer conductive rings set at the bottom of the personal care device, all-round contact with the conductive PIN pin can be achieved. There is no need to pay attention to the direction when inserting. At the same time, a wire storage cavity is set at the bottom to store the charging cable, avoiding the mess caused by the cable being too long during storage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0024] Figure 3 This is a top view of the present invention.

[0025] Figure 4 This is a bottom view of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of this utility model (cover plate omitted).

[0027] Figure 6 This is a schematic diagram of the cover plate.

[0028] Figure 7 This is a schematic diagram of the structure of the present invention (with the cover omitted).

[0029] Figure 8 for Figure 7 A structural diagram showing the hidden parts. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are 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 indicator will also change accordingly.

[0032] like Figure 1 As shown, this utility model discloses a charging base for charging personal care devices, which is compatible with personal care devices such as hair clippers, razors, nose hair trimmers, etc. It mainly has a charging interface at the bottom of the device body. The charging interface consists of at least two concentrically arranged conductive metal rings. When the device body is inserted into the insertion cavity at the rear end, the two conductive metal rings contact the conductive pins respectively to achieve electrical connection between the two. This eliminates the need for alignment, making it more convenient to use and preventing damage to the charging structure. This embodiment takes hair clippers as an example.

[0033] The charging base includes a base body with an insertion cavity for holding the body of the personal care device. The base body contains a charging PCB board with at least two conductive pins. The conductive pins are placed on the bottom surface of the insertion cavity and then contact the conductive metal ring at the rear end of the inserted body. Furthermore, a charging cable is provided at the bottom of the base. The charging cable can be wound and stored, and the appropriate length of the charging cable can be flexibly exposed according to the required length, making the storage more neat. At the same time, the charging cable adopts a bidirectional interface design, which can be directly plugged into the charging PCB board, and the other end can be detached from the power adapter.

[0034] like Figure 2 As shown, the seat 100 includes:

[0035] The cover 10 has an insertion cavity 110 formed on its upper part. The insertion cavity is formed by a central recess in the cover and has a circular cross-section, or may be formed in other ways, for the purpose of adapting to the handle of the personal care device.

[0036] The middle cover 20 is circular and has a central cavity 110 for receiving the insertion cavity;

[0037] The base 30 has an upper end that mates with the middle cover 20 to form a cavity 130, and a lower end that has a wire storage cavity 140.

[0038] The base 30 has a cover plate 40 that is detachably connected to it at its bottom.

[0039] The middle cover and the base are fixedly connected by screws; in other embodiments, they can also be connected by threads or snap-fit. The cover covers the connected middle cover and base, and is fixed to the middle cover by a snap-fit ​​connection. The cover plate and the base are detachably connected, and the two are interference-fitted, which allows for better disassembly and assembly, and facilitates the storage of the charging cable.

[0040] The upper part of the base is provided with an insertion cavity 110 that is adapted to the rear end of the body of the personal care device, a cavity 130 for accommodating the charging PCB board 300, and a wire storage cavity 140 provided below the base 100. The wire storage cavity 140 is provided with a winding part for winding and storing the charging cable 200.

[0041] The charging PCB board 300 has at least two conductive pins 310, with a portion of each pin passing through the base 100 and positioned on the bottom surface of the insertion cavity 110. The conductive pins 310 are arranged sequentially outwards from the center of the insertion cavity 110. Figure 3 As shown by the dashed line, the two devices are arranged side by side, and the distances from the two conductive pins to the center of the insertion cavity are not the same. Furthermore, the distances from the two pins to the center are matched with the radius of the conductive metal ring of the personal care device. Therefore, when the two devices are in contact, the conductive pins will only contact the corresponding conductive metal ring, preventing short circuits.

[0042] The charging cable 200 is detachably connected to the charging PCB board 300 and can be wound and stored in the wire storage cavity 140. The charging cable is split, meaning that one end can be directly connected to the interface of the charging PCB board, and the entire charging cable can be removed and stored. The charging cable can also be removed directly to charge the corresponding personal care device, provided that the personal care device has a corresponding charging interface, thus allowing charging beyond the charging dock.

[0043] like Figure 4 As shown, a gap 400 is provided between the cover plate 40 and the cavity wall of the wire storage cavity 140, that is, the diameter of the cover plate is smaller than the diameter of the cavity wall, so that there is a gap at the connection between the two, and the charging cable can be pulled out through this gap. Preferably, the cover plate is made of a flexible material.

[0044] The winding portion 32 is provided with a mating hole 33, such as Figure 5 As shown, the surface of the cover plate 40 is provided with an insertion portion 41 that matches the mating hole 33, such as... Figure 6 As shown, the insertion part directly snaps into the mating hole to achieve the mating of the two. There are three winding parts, which are evenly distributed at the bottom of the base. At the same time, their outer periphery is arc-shaped, and there is space between them and the cavity wall for winding the charging cable. Preferably, the charging cable is wound longitudinally around the outer periphery of the winding part.

[0045] The base 30 has several anti-slip blocks 31 around its bottom. The anti-slip block design can prevent the charging base from moving. When it is fixed on the table, it can be kept in a stable position and will not move due to slight pulling.

[0046] like Figure 7 and Figure 8 As shown, the upper part of the middle cover 20 is recessed downward to form a mounting groove 21. The charging PCB board 300 includes an interface board 330 and a charging management board 320. The interface board 330 is placed in the mounting groove 21, and the charging management board 320 is located above the mounting groove 21. The two are electrically connected. The mounting groove 21 is provided with a through hole corresponding to the interface direction of the interface board 330. The through hole connects to the wire storage cavity 140.

[0047] The charging management board and the interface board are electrically connected through connectors. The conductive pins of the cover are set on the charging management board. Both the charging management board and the interface board are fixed to the middle cover with screws.

[0048] The interface on the interface board can be a Type-C interface.

[0049] The upper side of the middle cover 20 is symmetrically provided with counterweight grooves 22, and counterweight blocks 500 are provided in the counterweight grooves 22. The counterweight grooves are symmetrically arranged to ensure that the weight on both sides is equal, and at the same time, it can also give the charging base a certain weight to prevent it from being easily moved.

[0050] The base 30 has a notch 120 on one side. The notch is designed to allow the charging cable to extend from the notch, and part of it can be wrapped inside. The length of the charging cable can be adjusted as needed.

[0051] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A charging base for charging a personal care device, characterized by: It includes: The base (100) has an insertion cavity (110) adapted to the rear end of the body of the personal care device, a cavity (130) for accommodating the charging PCB board (300) and a wire storage cavity (140) located below the base (100). The wire storage cavity (140) has a winding part for winding and storing the charging cable (200). The charging PCB board (300) has at least two conductive pins (310), and a portion of them passes through the base (100) and is placed on the bottom surface of the insertion cavity (110), and the conductive pins (310) are arranged sequentially outward from the center of the insertion cavity (110); The charging cable (200) is detachably connected to the charging PCB board (300) and can be wound and stored in the wire storage cavity (140).

2. A charging base for charging a personal care device according to claim 1, characterized in that: The seat (100) includes: The cover (10) has an insertion cavity (110) formed on its upper part. The middle cover (20) is circular and has a middle section for accommodating the insertion cavity (110). The base (30) has an upper end that fits with the middle cover (20) to form a cavity (130), and a wire storage cavity (140) is provided at its lower end.

3. A charging base for charging a personal care device according to claim 2, characterized in that: The base (30) has a cover plate (40) that is detachably connected to it at the bottom.

4. A charging base for charging a personal care device according to claim 3, characterized in that: A gap (400) is provided between the cover plate (40) and the cavity wall of the wire storage cavity (140).

5. A charging base for charging a personal care device according to claim 3 or 4, characterized in that: The winding part (32) is provided with a mating hole (33), and the surface of the cover plate (40) is provided with an insertion part (41) that matches the mating hole (33).

6. A charging base for charging a personal care device according to claim 2, 3 or 4, characterized in that: The base (30) has several anti-slip blocks (31) circumferentially arranged at the bottom.

7. A charging base for charging a personal care device according to claim 2, characterized in that: The upper part of the middle cover (20) is recessed downward to form a mounting groove (21). The charging PCB board (300) includes an interface board (330) and a charging management board (320). The interface board (330) is placed in the mounting groove (21), and the charging management board (320) is located above the mounting groove (21). The two are electrically connected. The mounting groove (21) is provided with a through hole corresponding to the interface direction of the interface board (330). The through hole is connected to the wire storage cavity (140).

8. A charging base for charging a personal care device according to claim 2, characterized in that: The upper side of the middle cover (20) is symmetrically provided with a counterweight groove (22), and a counterweight block (500) is provided in the counterweight groove (22).

9. A charging base for charging a personal care device according to claim 2, characterized in that: The base (30) has a notch (120) on one side.