Magnetic plug

Abstract

The application relates to a magnetic suction plug and relates to the technical field of charging equipment, which comprises a male head body and a magnetic suction female seat matched with the male head body. In the application, N52 neodymium-iron-boron magnets are adopted for the N-pole magnet and the S-pole magnet, and the N52 neodymium-iron-boron magnets are symmetrically distributed about the axis in the wire clamping groove. The strong magnetic force can prevent the male head body from being separated from the magnetic suction female seat due to slight external force after the male head body is connected with the magnetic suction female seat. The symmetric magnetic force can guide the male head body to automatically and accurately align, prevent poor contact caused by alignment deviation, and prevent oxidation and corrosion of the welding point of the contact terminal and the line connection part by covering the contact terminal and the line connection part with the insulating protective glue. The silica gel sealing ring is embedded in the connecting end of the male head body to form a sealing barrier to block water vapor and dust. The stress release sleeve is wrapped around the connecting part of the male head body and the lines to prevent the root of the lines from being broken. The whole application realizes the use effect of strong magnetic suction and high protection, and is suitable for more complex use scenarios.

Description

Technical Field

[0001] This application relates to the field of charging equipment technology, and in particular to a magnetic plug. Background Technology

[0002] With the increasing prevalence of electronic devices, the demand for charging and data transmission is growing daily. Traditional pluggable connectors suffer from problems such as inconvenient plugging and unplugging, easy damage, and poor contact.

[0003] In recent years, magnetic connectors have gradually attracted attention due to their convenience and reliability. However, existing technologies still suffer from insufficient magnetic force and poor protection performance, which limits their widespread application. To address these issues, a magnetic plug has been proposed. Utility Model Content

[0004] The purpose of this application is to provide a magnetic plug with strong magnetic attraction and excellent protective performance, which solves the problems mentioned in the background art.

[0005] This application provides a magnetic plug with the following technical solution: A magnetic plug includes a male connector body and a magnetic female connector adapted to the male connector body. The male connector body includes a shell, and the shell integrates a conductive contact component and a magnetic alignment component. One end of the shell is embedded with a wire slot for fixing a wire. The conductive contact component includes four contact terminals welded to the inner wall of the wire slot. The magnetic alignment component is embedded on the side of the wire slot near the mating end. The magnetic alignment component includes an N-pole magnet and an S-pole magnet fixedly connected to the inner wall of the wire slot. A protective component is provided between the shell, the conductive contact component, and the magnetic alignment component.

[0006] By adopting the above technical solution, the male connector body serves as the core load-bearing foundation, integrating the conductive contact component and the magnetic alignment component. The outer shell is located on the outside of the male connector body, effectively isolating the internal components from damage caused by external collisions and friction, extending the overall structural durability. The wire slot is embedded at one end of the outer shell, which can fix the wire and prevent the wire from shifting due to pulling or vibration during use. The magnetic alignment component is located on the side of the male connector body near the mating end, enabling faster alignment and engagement with the magnetic female connector, reducing the difficulty of docking. The protective component covers the male connector body, conductive contact component, and magnetic alignment component, initially preventing dust, moisture, and other impurities from entering the internal components, laying the foundation for subsequent protection performance improvements from a structural perspective, while ensuring that the conductive contact component and magnetic alignment component function in a stable environment.

[0007] Preferably, the inner walls of the four contact terminals are respectively welded with VBUS line, D- line, D+ line and GND line, wherein the VBUS line is the power supply line, the D- line and D+ line are the data transmission line and the GND line is the grounding line.

[0008] By adopting the above technical solution, the four contact terminals and four lines form a one-to-one welding connection, making the functional boundaries of each line clear. The VBUS line is dedicated to power supply, which can centrally ensure stable current output and will not cause insufficient power supply due to sharing the channel with other lines. The D- and D+ lines serve as dedicated data transmission lines, which can ensure that the data signal remains continuous during transmission and reduce signal loss or delay. The GND line independently undertakes the grounding function, which can conduct redundant current or static electricity generated during equipment operation to the ground, avoiding damage to internal components caused by static electricity accumulation, and reducing the risk of electric shock when users accidentally touch it. From the perspective of functional zoning, the safety of plug use and the stability of transmission are improved.

[0009] Preferably, the VBUS line and GND line both use 24AWG conductors, and the D- line and D+ line both use 28AWG conductors.

[0010] By adopting the above technical solutions, suitable conductor specifications are selected for lines with different functions, so that the performance of each line can be precisely matched with its own functional requirements. As power supply related lines, the conductor specifications selected for VBUS and GND lines can better adapt to the current carrying requirements in the power supply scenario. As data transmission lines, the conductor specifications selected for D- and D+ lines are more in line with the requirements of data signal transmission for line impedance and signal attenuation, which can reduce data loss during transmission, ensure the clarity and accuracy of data transmission, and realize the rational allocation of line resources.

[0011] Preferably, both the N-pole magnet and the S-pole magnet are N52 neodymium iron boron magnets with a surface magnetic force ≥3600 Gauss. The N-pole magnet and the S-pole magnet are symmetrically distributed about the central axis of the wire slot, and their polarities are compatible with the polarities of the magnets inside the magnetic jack.

[0012] By adopting the above technical solution, the N52 neodymium iron boron magnet itself has strong magnetic force, which can effectively solve the problem of insufficient magnetic force of existing magnetic plugs. After the male plug body is connected to the magnetic female plug, it is not easy to detach due to slight external collision or pulling, thus ensuring the continuity of charging or data transmission. At the same time, the N pole magnet and the S pole magnet are symmetrically distributed about the central axis of the wire slot, which can make the male plug body be subjected to uniform force when connected to the magnetic female plug, avoiding connection misalignment caused by uneven magnetic force distribution, and thus preventing poor contact caused by connection misalignment.

[0013] Preferably, the outer shell is made of a mixture of reinforced nylon and glass fiber.

[0014] By adopting the above technical solutions, the material formed by the mixture of reinforced nylon and glass fiber has higher structural strength and wear resistance, which can better resist collisions and friction in daily use, reduce the probability of cracks and damage to the shell, and extend the overall service life of the plug.

[0015] Preferably, the protective component includes insulating protective adhesive, insulating sleeve, stress relief sleeve and silicone sealing ring, wherein the insulating sleeve is fitted over the VBUS line, D- line, D+ line and GND line.

[0016] By adopting the above technical solution, the protective component achieves layered protection through the collaboration of multiple components. The insulating sleeve is installed on the outside of the four lines, which can effectively isolate each line and avoid short circuits caused by contact between the lines. It can also prevent the risk of conductive contact after the outer sheath of the line is damaged. The multi-component design of the protective component breaks the limitations of the traditional single protective structure. Starting from the basic protection link of line isolation, it provides support for subsequent sealing and fixing protection, and further improves the overall protection performance.

[0017] Preferably, the insulating protective adhesive covers the connection points between the contact terminals and the VBUS line, D- line, D+ line and GND line.

[0018] By adopting the above technical solution, the insulating protective adhesive is applied to the connection between the contact terminal and each line, which can form a sealed protection for the solder joint at the connection, preventing dust, moisture and other impurities from entering the solder joint area, avoiding oxidation and corrosion of the solder joint due to the accumulation of impurities, and thus preventing poor contact or line breakage.

[0019] Preferably, the silicone sealing ring is fixedly connected to the edge of the mating end of the outer shell, and the stress relief sleeve is wrapped around the bottom end of the outer shell.

[0020] By adopting the above technical solution, when the male connector body is connected to the magnetic female connector, the silicone sealing ring can fit tightly with the corresponding structure of the magnetic female connector to form an effective sealing barrier, preventing external moisture and dust from entering the internal components through the connection gap. This allows the device to adapt to complex usage scenarios such as humid and dusty environments. The stress relief sleeve wraps around the connection points between the male connector body and each wire, which can protect the root of each wire, reduce the problem of wire breakage and outer sheath damage during daily bending and pulling, and extend the service life of the wire.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This magnetic plug utilizes N52 neodymium iron boron magnets, with the N and S poles symmetrically distributed about the central axis of the wire slot. This design not only prevents the male connector from detaching from the magnetic female connector due to slight external forces after mating, but also guides the male connector to automatically and accurately align, preventing poor contact caused by misalignment. The multi-component protective system provides coordinated protection: an insulating sleeve protects the external wiring from short circuits; insulating adhesive covers the contact terminals and wiring connections to protect solder joints from oxidation and corrosion; a silicone sealing ring is embedded in the male connector's mating end to form a barrier against moisture and dust; and a stress-relieving sleeve wraps around the male connector and wiring connections to prevent wire breakage. Overall, this design achieves strong magnetic attraction and high protection, making it suitable for a wider range of complex applications. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall front view structure of this application; Figure 2 This is a schematic diagram of the overall side view structure of this application; Figure 3 This is a schematic diagram of the overall cross-sectional structure of this application; Figure 4 This is a schematic diagram of the first partial structure of this application; Figure 5 This is a schematic diagram of the second part of the structure of this application.

[0023] In the picture: 1. Male connector body; 101. Outer shell; 102. Wire slot; 2. Conductive contact assembly; 201. Contact terminal; 202. VBUS line; 203. D- line; 204. D+ line; 205. GND line; 3. Magnetic alignment assembly; 301. N pole magnet; 302. S pole magnet; 4. Protective assembly; 401. Insulating protective adhesive; 402. Insulating spacer; 403. Stress relief sleeve; 404. Silicone sealing ring; 5. Magnetic female connector. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A magnetic plug, see reference Figure 1 , Figure 3 and Figure 4The device includes a male connector body 1 and a magnetic female connector 5 that is compatible with the male connector body 1. The male connector body 1 includes a shell 101, which is made of a hybrid material of reinforced nylon and glass fiber. The material formed by the hybrid material of reinforced nylon and glass fiber has higher structural strength and wear resistance, and can better resist collisions and friction in daily use, reducing the probability of cracks and damage to the shell 101 and extending the overall service life of the plug. At the same time, the hybrid material also has good insulation properties, which can effectively isolate the internal conductive components from the external environment, prevent leakage problems caused by insufficient insulation of the shell 101, and improve the safety of use. In addition, the material also has a certain temperature resistance, which can adapt to temperature changes in different usage environments, avoid deformation of the shell 101 due to excessively high or low temperatures, and thus affect the positional stability of the internal components, ensuring that the plug can work normally in various scenarios. The shell 101 integrates a conductive contact component 2 and a magnetic alignment component 3. One end of the shell 101 is embedded with a wire slot 102 for fixing the wire.

[0026] Reference Figure 3 , Figure 4 and Figure 5The conductive contact assembly 2 includes four contact terminals 201 welded to the inner wall of the wire slot 102. The contact terminals 201 are made of brass and nickel-plated. Brass ensures high conductivity, while nickel plating enhances oxidation and wear resistance. The inner walls of the four contact terminals 201 are respectively welded with a VBUS line 202, a D- line 203, a D+ line 204, and a GND line 205. The VBUS line 202 is the power supply line, the D- and D+ lines 203 and 204 are for data transmission, and the GND line 205 is the grounding line. The four contact terminals 201 form a one-to-one welding connection with the four lines, clearly defining the functional boundaries of each line. The VBUS line 202 is dedicated to power supply, ensuring stable current output and preventing power shortages due to sharing a channel with other lines. The D- and D+ lines 203 and 204 serve as dedicated data transmission lines, ensuring continuous data signal transmission and reducing signal loss or delay. The GND line 205 independently handles grounding. The grounding function directs redundant current or static electricity generated during equipment operation to the ground, preventing damage to internal components from static buildup and reducing the risk of electric shock from accidental contact. From a functional zoning perspective, this enhances the safety of plug use and the stability of transmission. VBUS line 202 and GND line 205 both use 24AWG wire, while D- line 203 and D+ line 204 both use 28AWG wire. Selecting appropriate wire specifications for different functions ensures that the performance of each line precisely matches its functional requirements. VBUS line 202 and GND line 205, as power supply-related lines, are selected with wire specifications better suited to the current carrying capacity requirements of the power supply scenario. D- line 203 and D+ line 204, as data transmission lines, are selected with wire specifications that better meet the requirements of data signal transmission for line impedance and signal attenuation, reducing data loss during transmission and ensuring the clarity and accuracy of data transmission. This achieves a rational allocation of line resources. Example 2: A magnetic plug, see reference Figure 2 , Figure 3 and Figure 4Based on the same concept as Embodiment 1 above, this embodiment proposes a magnetic alignment component 3 embedded in the wire slot 102 near the mating end. The magnetic alignment component 3 includes an N-pole magnet 301 and an S-pole magnet 302 fixedly connected to the inner wall of the wire slot 102. Both the N-pole magnet 301 and the S-pole magnet 302 are N52 neodymium iron boron magnets with a surface magnetic force ≥3600 Gauss. The N-pole magnet 301 and the S-pole magnet 302 are symmetrically distributed about the central axis of the wire slot 102. The N52 neodymium iron boron magnet itself has a strong magnetic force, which can effectively solve the problem of insufficient magnetic attraction force in existing magnetic plugs. The design ensures that the male connector 1 and the magnetic female connector 5 are not easily separated by slight external collisions or pulling after docking, thus guaranteeing the continuity of charging or data transmission. At the same time, the N-pole magnet 301 and the S-pole magnet 302 are symmetrically distributed about the central axis of the male connector 1, which allows the male connector 1 to be subjected to uniform force when docking with the magnetic female connector 5, avoiding docking misalignment caused by uneven magnetic force distribution, and thus preventing poor contact caused by docking misalignment. The symmetrical magnetic force distribution can also guide the male connector 1 to automatically form a precise alignment with the magnetic female connector 5, improving the convenience of docking, especially suitable for scenarios with poor visibility or one-handed operation.

[0027] Reference Figure 1 , Figure 3 and Figure 4A protective component 4 is provided between the outer casing 101, the conductive contact component 2, and the magnetic alignment component 3. The protective component 4 includes an insulating protective adhesive 401, an insulating sleeve 402, a stress-relieving sleeve 403, and a silicone sealing ring 404. The insulating sleeve 402 is fitted over the VBUS line 202, D- line 203, D+ line 204, and GND line 205. The protective component 4 achieves layered protection through the coordinated action of multiple components. The insulating sleeve 402, fitted over the four lines, effectively isolates each line, preventing short circuits caused by contact between lines and protecting the circuits from short circuits. To mitigate the risk of conductive contact after the outer sheath is damaged, the multi-component design of protective component 4 breaks away from the limitations of traditional single-structure protection. Starting with basic line isolation, it provides support for subsequent sealing and fixing protection, further enhancing overall protective performance. Insulating protective adhesive 401 covers the connection points between contact terminal 201 and VBUS line 202, D- line 203, D+ line 204, and GND line 205. Covering the connection points between contact terminal 201 and each line with insulating protective adhesive 401 can form a seal protection for the solder joints at the connection points, preventing dust, moisture, etc. Impurities entering the solder joint area prevent oxidation and corrosion caused by impurity accumulation, thus preventing poor contact or circuit breakage. Simultaneously, the insulating protective adhesive 401 also helps to fix the solder joint, enhancing the structural strength of the connection. Furthermore, the insulating protective adhesive 401 has excellent insulation properties, further isolating the conductive parts of the connection from the external environment and preventing leakage risks. This improves the reliability of the conductive contact component 2 in terms of both connection stability and safety. The silicone sealing ring 404 is fixedly connected to the edge of the mating end of the outer shell 101, and the stress relief sleeve 403 is wrapped around the bottom of the outer shell 101. When the male connector body 1 mates with the magnetic female connector 5, the silicone sealing ring 404 fits tightly with the corresponding structure of the magnetic female connector 5, forming an effective sealing barrier to prevent external moisture and dust from entering the internal components through the mating gap. This allows the device to adapt to complex usage scenarios such as humid and dusty environments. The stress relief sleeve 403 wraps around the connection points between the male connector body 1 and each wire. The stress relief sleeve 403 is made of TPU and can protect the root of the wire, reducing the problem of wire breakage and outer sheath damage during daily bending and pulling, and extending the service life of the wire.

[0028] The implementation principle of this application embodiment is as follows: When the male connector body 1 is brought close to the matching magnetic female connector 5, the N-pole magnet 301 and S-pole magnet 302 in the magnetic alignment component 3 automatically attract the corresponding magnets of the magnetic female connector 5 due to the strong magnetic force characteristics of the N52 neodymium iron boron magnets. Furthermore, the N-pole magnet 301 and S-pole magnet 302 are symmetrically distributed about the central axis of the male connector body 1, guiding the male connector body 1 and the magnetic female connector 5 to quickly and accurately align, avoiding misalignment. As the male connector body 1 and the magnetic female connector 5 are attached, the silicone sealing ring 404 at the edge of the male connector body 1 tightly adheres to the corresponding structure of the magnetic female connector 5, forming a sealing barrier to prevent external moisture and dust from entering. After docking, the four contact terminals 201 in the conductive contact component 2 contact the conductive structure of the magnetic female connector 5. The VBUS line 202 serves as the power supply line, and the GND line 205 serves as the grounding line, through a 24AWG... The standard conductors stably carry current. The D-line 203 and D+line 204 serve as data transmission lines, using 28AWG standard conductors to reduce signal loss and achieve stable power supply and data transmission. Meanwhile, the insulating sleeve 402 in the protective component 4 is fitted over the VBUS line 202, D-line 203, D+line 204 and GND line 205 to isolate the lines and prevent short circuits. The insulating protective adhesive 401 covers the connection points between the contact terminal 201 and each line, protecting the solder joints from impurities and enhancing connection strength. In addition, the outer shell 101 is made of a mixed material of reinforced nylon and glass fiber to protect the conductive contact component 2 and magnetic alignment component 3 inside the male connector body 1 from impact damage. The conductor slot 102 is embedded in one end of the outer shell 101 to fix the conductor. The stress relief sleeve 403 wraps around the connection point between the male connector body 1 and the conductor to prevent the conductor from breaking due to bending or pulling. Overall, the plug is guaranteed to operate stably during use.

Claims

1. A magnetic plug, comprising a male connector body (1) and a magnetic female connector (5) adapted to the male connector body (1), characterized in that: The male connector body (1) includes a shell (101), inside which a conductive contact assembly (2) and a magnetic alignment assembly (3) are integrated. One end of the shell (101) is inlaid with a wire slot (102) for fixing the wire. The conductive contact assembly (2) includes four contact terminals (201) welded to the inner wall of the wire slot (102). The magnetic alignment assembly (3) is embedded in the wire slot (102) on the side near the mating end. The magnetic alignment assembly (3) includes an N-pole magnet (301) and an S-pole magnet (302) fixedly connected to the inner wall of the wire slot (102). A protective assembly (4) is provided between the shell (101), the conductive contact assembly (2), and the magnetic alignment assembly (3).

2. A magnetic plug according to claim 1, characterized in that: The inner walls of the four contact terminals (201) are respectively welded with VBUS line (202), D- line (203), D+ line (204) and GND line (205). The VBUS line (202) is a power supply line, the D- line (203) and D+ line (204) are for data transmission, and the GND line (205) is a grounding line.

3. A magnetic plug according to claim 2, characterized in that: The VBUS line (202) and GND line (205) both use 24AWG conductors, and the D- line (203) and D+ line (204) both use 28AWG conductors.

4. A magnetic plug according to claim 1, characterized in that: The N-pole magnet (301) and the S-pole magnet (302) are both N52 neodymium iron boron magnets with a surface magnetic force ≥3600 Gauss. The N-pole magnet (301) and the S-pole magnet (302) are symmetrically distributed about the central axis of the wire slot (102), and their polarities are compatible with the polarities of the magnets inside the magnetic chuck (5).

5. A magnetic plug according to claim 1, characterized in that: The protective component (4) includes insulating protective adhesive (401), insulating sleeve (402), stress relief sleeve (403) and silicone sealing ring (404). The insulating sleeve (402) is fitted on the outside of the VBUS line (202), D- line (203), D+ line (204) and GND line (205).

6. A magnetic plug according to claim 5, characterized in that: The insulating protective adhesive (401) covers the connection between the contact terminal (201) and the VBUS line (202), D- line (203), D+ line (204) and GND line (205).

7. A magnetic plug according to claim 6, characterized in that: The silicone sealing ring (404) is fixedly connected to the edge of the mating end of the outer shell (101), and the stress relief sleeve (403) is wrapped around the bottom end of the outer shell (101).

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