A magnetic charging head

Abstract

This utility model relates to a magnetic charging head, belonging to the technical field of charging connection devices. The charging head includes a magnetic female charging head and a magnetic male charging head, achieving quick docking and disengagement through magnetic attraction. The female charging head base is equipped with concentric signal receiving electrodes, a positive connecting ring, a magnetic ring, and a negative connecting ring; the male charging head panel is equipped with corresponding signal electrode posts, a positive charging post, and a magnetic negative connecting ring with a retractable and movable positioning component. During docking, mechanical fixation and electrical connection are achieved through magnetic attraction, and control signals are transmitted through independent signal electrodes. This structure solves the problems of inconvenient plugging and unplugging, easy wear, unstable connection, and lack of automatic protection in traditional plugs. It has the advantages of convenient connection, reliable contact, intelligent control, and automatic power-off separation, significantly improving charging safety and user experience.

Description

Technical Field

[0001] This utility model relates to a charging connection device, specifically, to a magnetic charging head. Background Technology

[0002] Currently, most common charging connectors, especially those used in charging interfaces for outdoor mobile devices such as electric bicycles and electric scooters, employ traditional physical plug-in connectors. These connectors typically consist of metal pins and sockets, and electrical connection and fixation are achieved by the user manually aligning them and applying a certain amount of mechanical force.

[0003] The aforementioned prior art has at least the following drawbacks: 1. Frequent mechanical plugging and unplugging operations are laborious, and long-term use can easily lead to wear and oxidation of metal contacts, resulting in increased contact resistance, decreased charging efficiency, and even poor contact or arcing, posing safety hazards.

[0004] 2. Traditional plug-in connection methods are prone to loosening or accidental disconnection when subjected to external force or slight movement of the equipment, which may cause charging interruption, power short circuit or electric arc when powered on, posing a high safety risk.

[0005] 3. Most traditional chargers are merely electrical connection components and do not have signal communication functions. They cannot achieve charging status recognition, intelligent control of the charging process (such as automatic start and stop), or actively perform safety disconnection operations under abnormal conditions (such as overheating or overload).

[0006] 4. Gaps often exist at the plug-in interfaces, making them prone to dust accumulation or liquid seepage, affecting electrical safety and service life. Although some products have added separate dust covers, these are easily lost or cumbersome to operate.

[0007] 5. When the charging is finished or when it is necessary to disconnect in an emergency, it must be manually unplugged. It cannot achieve automatic and fast physical separation, and its convenience and safety are not good in specific application scenarios (such as public charging facilities and unattended charging).

[0008] In recent years, magnetic charging technology has been widely adopted in consumer electronics due to its convenient connection. However, existing magnetic charging solutions often focus on simple magnetic attraction and power transmission, and their structural designs often struggle to simultaneously achieve highly reliable electrical connections, precise signal transmission, robust mechanical locking, and efficient automatic separation capabilities. Especially in industrial or transportation charging scenarios requiring high current transmission and complex control signals, developing a safe magnetic charging head that offers reliable connection, intelligent control, and automatic separation in the event of power failure remains a pressing technical challenge in this field. Utility Model Content

[0009] This invention designs a magnetic charging head, which solves the technical problems of traditional charging plugs, such as difficulty in plugging and unplugging, easy wear, unstable connection, lack of automatic separation function and poor protection, resulting in inconvenient charging and safety hazards.

[0010] To solve the aforementioned technical problems, the present invention adopts the following solution: A magnetic charging head includes a magnetic female charging head and a magnetic male charging head. The magnetic female charging head includes a base, on which a signal receiving electrode, a positive connecting ring, a magnetic ring, and a negative connecting ring are disposed. The signal receiving electrode is located at the center of the positive connecting ring, the positive connecting ring is located inside the magnetic ring, and the magnetic ring is located inside the negative connecting ring. The magnetic ring is located between the positive and negative connecting rings. The magnetic male charging head includes a plug body and a panel. The panel is provided with a signal electrode post and at least one positive charging post. The magnetic negative connecting ring surrounds the panel, and the signal electrode post and the positive charging post are located within the area enclosed by the magnetic negative connecting ring. When the magnetic female charging head is connected to the magnetic male charging head, the signal electrode post is connected to the signal receiving electrode, the positive charging post is connected to the positive connecting ring, and the magnetic negative connecting ring is magnetically attracted to the magnetic ring and electrically connected to the negative connecting ring.

[0011] Preferably, the base is also hinged with a rotatable dust cover.

[0012] Preferably, the negative electrode connecting ring can extend along the axial direction of the base.

[0013] Preferably, the magnetic negative electrode connecting ring is further provided with a retractable movable positioning component; the movable positioning component includes a moving part, a fixed part and a spring; the fixed part has a cavity, the spring is disposed at the bottom of the cavity, and the bottom of the moving part is connected to the top of the spring.

[0014] Preferably, the magnet ring is an electromagnet.

[0015] Preferably, the control signal transmitted when the signal electrode post is electrically connected to the signal receiving electrode includes a signal that controls the on / off state of the electromagnet.

[0016] Preferably, the control signal transmitted when the signal electrode post is electrically connected to the signal receiving electrode includes a signal for controlling the opening and closing of the charging unit.

[0017] Preferably, the control signal transmitted when the signal electrode post is electrically connected to the signal receiving electrode includes a signal for sending a vehicle lock-up state.

[0018] Preferably, the magnetic male charging head has two positive charging posts on its panel.

[0019] Preferably, the magnetic charging head is used in electric-assisted bicycles, electric bicycles, mobility scooters for the elderly, golf carts, children's toy cars, or yachts.

[0020] Compared with existing magnetic charging heads, this magnetic charging head has the following advantages: (1) This utility model adopts a magnetic docking method, which can achieve quick and easy connection and separation without precise alignment and laborious plugging and unplugging, significantly improving the convenience of operation and user experience.

[0021] (2) This utility model provides a stable mechanical connection through magnetic adsorption force. Combined with the moving positioning component and spring structure, it ensures tight electrode contact, reduces contact resistance, avoids poor connection and arcing, and improves the safety and reliability of the charging process.

[0022] (3) This utility model utilizes the combination of electromagnet and spring to achieve automatic and rapid physical separation of the charging head in the case of power failure, full charge or abnormal conditions, effectively preventing safety hazards caused by long-term overcharging, interface overheating, etc.

[0023] (4) This utility model can realize a variety of intelligent control functions such as charging status recognition, charging process start and stop control, and vehicle status lock through independent signal transmission electrodes, thereby improving the automation and intelligence level of charging management.

[0024] (5) The integrated ring electrode and magnet layout of this utility model are reasonable and the structure is compact. The female head is equipped with a rotatable dust cover, which can effectively prevent dust and liquid from entering, extend service life and adapt to a variety of use environments.

[0025] (6) This utility model is not only applicable to electric bicycles, electric bicycles and other means of transportation, but its universal interface and intelligent control features also make it applicable to other electronic devices that require safe and convenient charging. Attached Figure Description

[0026] Figure 1 : A three-dimensional structural diagram of the magnetic charging head of this utility model.

[0027] Figure 2 : Figure 1 A schematic diagram of the end face structure of the magnetic charging head.

[0028] Figure 3 : A three-dimensional structural diagram of the magnetic male charging head of this utility model.

[0029] Figure 4 : Figure 3 A schematic diagram of the end face structure of the magnetic charging head.

[0030] Figure 5 : Figure 4 A cross-sectional structural diagram of the moving positioning component.

[0031] Explanation of reference numerals in the attached figures: 1—Magnetic female charging head; 11—Base; 12—Signal receiving electrode; 13—Positive connecting ring; 14—Magnetic ring; 15—Negative connecting ring; 16—Dust cover; 2—Magnetic male charging head; 21—Plug body; 22—Panel; 23—Positive charging post; 24—Magnetic negative connecting ring; 25—Signal electrode post; 26—Moving positioning component; 261—Moving part; 262—Fixing part; 263—Spring. Detailed Implementation

[0032] The following is combined with Figures 1 to 5 The present invention will be further described below: like Figure 1 and Figure 2 As shown, the magnetic charging head 1 includes a base 11, on which a signal receiving electrode 12, a positive connecting ring 13, a magnetic ring 14, and a negative connecting ring 15 are disposed. The signal receiving electrode 12 is located at the center of the positive connecting ring 13, and an insulating material is disposed between them. The positive connecting ring 13 is located inside the magnetic ring 14, and the magnetic ring 14 is located inside the negative connecting ring 15. The negative connecting ring 15 can extend along the axial direction of the base 11. A rotatable dust cover 16 is also connected to the base 11. The dust cover 16 has rotation markings and electrical markings.

[0033] like Figure 3 and Figure 4 As shown, the magnetic male charging head 2 includes a plug body 21 and a panel 22. The plug body 21 and the panel 22 form a mounting cavity. The panel 22 has three mounting holes, and a signal electrode post 25 is provided in the middle mounting hole. When the magnetic female charging head 1 and the magnetic male charging head 2 are connected, the signal electrode post 25 is electrically connected to the signal receiving electrode 12. The electrical connection between the signal electrode post 25 and the signal receiving electrode 12 mainly transmits the following three control signals: 1. When the two begin to connect, a signal to lock the vehicle is sent to prevent the vehicle from moving. 2. The charging unit is turned off or on. 3. It can also control the electromagnet to automatically separate the magnetic female charging head 1 and the magnetic male charging head 2.

[0034] The other two holes each have a positive charging post 23. When the magnetic female charging head 1 and the magnetic male charging head 2 are connected, the two positive charging posts 23 are connected to the positive connecting ring 13. A magnetic negative connecting ring 24 is also provided at the circular edge of the panel 22. The magnetic negative connecting ring 24 can magnetically attract the magnetic female charging head 1 and the magnetic male charging head 2, and its sidewall is also connected to the negative connecting ring 15, serving as a negative connection. The magnetic negative connecting ring 24 can be made of a magnetically conductive material, such as iron. The magnetic ring 14 can be a permanent magnet or an electromagnet.

[0035] like Figure 5 As shown, the magnetic negative electrode connecting ring 24 is also provided with a movable positioning component 26. The movable positioning component 26 is telescopic and includes a movable part 261, a fixed part 262, and a spring 263. The fixed part 262 has a cavity, and the spring 263 is located at the bottom of the cavity. The bottom of the movable part 261 is connected to the top of the spring 263. When the magnetic negative electrode connecting ring 24 and the magnet ring 14 are attracted, the movable part 261 is squeezed into the cavity of the fixed part 262, at which time the spring 263 is compressed. When the magnetic negative electrode connecting ring 24 and the magnet ring 14 are no longer attracted, the spring 263 releases its elastic force, which can completely separate the magnetic female charging head 1 and the magnetic male charging head 2.

[0036] Therefore, the magnetic ring 14 can be an electromagnet. When the electromagnet is de-energized, the spring 263 releases its elastic force, which can completely and automatically separate the magnetic female charging head 1 from the magnetic male charging head 2, thereby ensuring charging safety and preventing the plug temperature from getting too high.

[0037] This new magnetic charging head is not only suitable for electric bicycles and electric motorized vehicles, but also for various other charging appliances, achieving the goals of safety, environmental protection, and energy saving.

[0038] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A magnetic charging head, characterized in that: It includes a magnetic female charging head (1) and a magnetic male charging head (2); The magnetic charging head (1) includes a base (11), on which a signal receiving electrode (12), a positive connecting ring (13), a magnet ring (14), and a negative connecting ring (15) are provided; the signal receiving electrode (12) is located at the center of the positive connecting ring (13), the positive connecting ring (13) is located inside the magnet ring (14), and the magnet ring (14) is located inside the negative connecting ring (15); the magnet ring (14) is located between the positive connecting ring (13) and the negative connecting ring (15); The magnetic male charging head (2) includes a plug body (21) and a panel (22). The panel (22) is provided with a signal electrode post (25) and at least one positive charging post (23). A magnetic negative connection ring (24) surrounds the panel (22). The signal electrode post (25) and the positive charging post (23) are located within the area enclosed by the magnetic negative connection ring (24). When the magnetic female charging head (1) is connected to the magnetic male charging head (2), the signal electrode post (25) is connected to the signal receiving electrode (12), the positive charging post (23) is connected to the positive connecting ring (13), the magnetic negative connecting ring (24) is magnetically attracted to the magnet ring (14) and electrically connected to the negative connecting ring (15).

2. The magnetic charging head according to claim 1, characterized in that: A rotatable dust cover (16) is also hinged to the base (11).

3. The magnetic charging head according to claim 1 or 2, characterized in that: The negative electrode connecting ring (15) can extend along the axial direction of the base (11).

4. The magnetic charging head according to claim 1, characterized in that: The magnetic negative electrode connecting ring (24) is also provided with a retractable movable positioning component (26); the movable positioning component (26) includes a moving part (261), a fixed part (262) and a spring (263); the fixed part (262) is provided with a cavity, the spring (263) is disposed at the bottom of the cavity, and the bottom of the moving part (261) is connected to the top of the spring (263).

5. The magnetic charging head according to claim 4, characterized in that: The magnet ring (14) is an electromagnet.

6. The magnetic charging head according to claim 5, characterized in that: When the signal electrode post (25) is electrically connected to the signal receiving electrode (12), the control signal transmitted includes a signal that controls the on / off state of the electromagnet.

7. The magnetic charging head according to claim 1, characterized in that: When the signal electrode post (25) is electrically connected to the signal receiving electrode (12), the control signal transmitted includes a signal for controlling the opening and closing of the charging unit.

8. The magnetic charging head according to claim 1, characterized in that: When the signal electrode post (25) is electrically connected to the signal receiving electrode (12), the control signal transmitted includes a signal for sending a locked vehicle state.

9. The magnetic charging head according to claim 1, characterized in that: The magnetic male charging head (2) has two positive charging posts (23) on its panel (22).

10. The magnetic charging head according to claim 1, characterized in that: The magnetic charging head is used in electric bicycles, electric scooters, mobility scooters for the elderly, golf carts, children's toy cars, or yachts.

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