Single-point magnetic suction base

Abstract

This utility model discloses a single-point magnetic chuck, comprising an insulating body, a conductive pin, a conductive outer shell, a magnet, and a sealing ring. The conductive pin is a single unit, embedded and fixed within the insulating body. The front end of the conductive pin has a first contact portion, which protrudes from the front end face of the insulating body. A positioning recess is recessed at the center of the front end face of the first contact portion. The rear end of the conductive pin has a first connecting portion. By using a conductive outer shell and employing only one conductive pin, replacing the traditional structure with at least two conductive pins, the number of components in the magnetic chuck is reduced, making product manufacturing and assembly easier, and resulting in a smaller overall size and more compact structure. Furthermore, by embedding and fixing the conductive pin within the insulating body and using a sealing ring to seal the assembly gap between the conductive outer shell and the insulating body, a waterproof function is achieved, meeting the requirements of use.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a single-point magnetic female connector. Background Technology

[0002] Magnetic female connectors, also known as magnetic sockets or magnetic connectors, are a special type of socket connector. Their main feature is the use of magnetism to assist in the connection and disconnection between the female and male connectors. This design not only allows users to quickly and easily connect or disconnect devices but also improves connection stability and reliability. The working principle of magnetic female connectors is based on magnetic attraction. A strong magnet is usually embedded inside the female connector, while the male connector may contain magnetic material or a metal that attracts it. When the male connector approaches the female connector, it is attracted by the magnetic force and automatically aligns and securely connects. This design reduces connection failures caused by alignment errors between the male and female connectors and also improves the ease of insertion and removal. Magnetic female connectors are widely used in various electronic devices that require frequent insertion and removal and have high requirements for connection stability, such as massagers, smartphones, tablets, laptops, power banks, and car chargers. Especially in mobile and wearable devices, the use of magnetic female connectors can greatly reduce wear and tear on the device interface during insertion and removal, extending the device's lifespan.

[0003] Current magnetic chucks primarily consist of an insulating body, a shell, a magnet, and at least two conductive pins. The shell covers the insulating body, the magnet is mounted on the insulating body and located inside the shell, and the at least two conductive pins are separated from and fixed to the insulating body. However, in existing technology, the use of at least two conductive pins results in a large number of components, making production and assembly inconvenient, and the overall structure is bulky and not compact. Furthermore, existing magnetic chucks have poor waterproofing performance, failing to meet usage requirements. Therefore, it is necessary to improve current magnetic chucks. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a single-point magnetic female base, which can effectively solve the problems of existing magnetic female bases having many parts, large size and poor waterproof performance.

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

[0006] A single-point magnetic chuck includes an insulating body, a conductive needle, a conductive outer shell, a magnet, and a sealing ring. The conductive needle is a single unit, embedded and fixed within the insulating body. Its front end has a first contact portion protruding from the front end face of the insulating body, with a positioning recess at the center of the front end face. The rear end of the conductive needle has a first connecting portion extending rearward from the insulating body. The conductive outer shell is fitted over the insulating body. Its front end has a second contact portion located around and separate from the first contact portion. The rear end of the conductive outer shell has a second connecting portion. The magnet is fitted over the front end of the insulating body and located within the conductive outer shell. The sealing ring is fitted over the front end of the insulating body and located behind the magnet, clamping between the outer wall of the insulating body and the inner wall of the conductive outer shell.

[0007] As a preferred embodiment, the insulating body is a multi-stage cylindrical structure, the outer diameter of the front end of the insulating body is smaller than the outer diameter of the rear end, and the rear edge of the insulating body extends radially to form a limiting ring. The conductive shell is cylindrical, and the rear end face of the conductive shell abuts against the limiting ring.

[0008] As a preferred embodiment, the limiting ring has a wire-passing groove, which is directly opposite the second connecting part. The second connecting part is used to weld with an external wire, and the wire-passing groove is used to position the wire and lead it out backward.

[0009] As a preferred embodiment, the rear end face of the insulating body is recessed with a cavity, and the first connecting part is located in the cavity and protrudes from the cavity.

[0010] As a preferred embodiment, the magnet is ring-shaped and contacts the inner side of the second contact portion. The sealing ring is clamped between the rear end face of the magnet and the stepped surface of the insulating body, resulting in a more compact structure and better sealing and waterproof performance.

[0011] As a preferred embodiment, the conductive needle body has a cylindrical portion integrally formed and connected between the first contact portion and the first connecting portion. The outer diameters of the first contact portion and the first connecting portion are both larger than the outer diameter of the cylindrical portion. The cylindrical portion is embedded in the center of the insulating body, and the front end of the cylindrical portion extends radially to form a protruding ring. The protruding ring is embedded in the insulating body, so that the conductive needle body and the insulating body are more firmly bonded and the waterproof effect is better.

[0012] As a preferred embodiment, the second contact portion is annular, and the front end face of the second contact portion is flush with the front end face of the insulating body, making the contact connection more stable and reliable.

[0013] As a preferred embodiment, the sealing ring is a silicone ring.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By using a conductive outer shell and a single conductive pin, a single-point contact structure is formed, replacing the traditional two-point contact structure with at least two conductive pins. This reduces the number of parts in the magnetic female connector, making product manufacturing and assembly easier, and resulting in a smaller overall product size and a more compact structure. Furthermore, by embedding the conductive pin into the insulating body and using a sealing ring to seal the assembly gap between the conductive outer shell and the insulating body, a waterproof function is achieved, meeting the requirements of use.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0019] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0020] Figure 4 This is an exploded view from another angle of a preferred embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Insulation body 11. Stepped surface

[0024] 12. Limiting ring; 13. Cable guide groove

[0025] 14. Cavity 20. Conductive needle body

[0026] 21. First contact part; 22. First connecting part

[0027] 23. Column part 24. Protruding ring

[0028] 201, positioning recess 30, conductive outer shell

[0029] 31. Second contact part; 32. Second connecting part

[0030] 40. Magnet; 50. Sealing ring. Detailed Implementation

[0031] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10, a conductive needle body 20, a conductive outer shell 30, a magnet 40, and a sealing ring 50.

[0032] The insulating body 10 has a multi-stage cylindrical structure. The outer diameter of the front end of the insulating body 10 is smaller than that of the rear end, thus forming a stepped surface 11 between the front and rear ends of the insulating body 10. The stepped surface 11 is annular, and a limiting ring 12 extends radially from the rear edge of the insulating body 10. A wire groove 13 is formed on the limiting ring 12, and a cavity 14 is recessed on the rear end face of the insulating body 10. In addition, the insulating body 10 is made of plastic.

[0033] The conductive needle 20 is a single unit, which is embedded and fixed within the insulating body 10. The front end of the conductive needle 20 has a first contact portion 21, which protrudes from the front end face of the insulating body 10. A positioning recess 201 is recessed at the center of the front end face of the first contact portion 21. The rear end of the conductive needle 20 has a first connecting portion 22, which extends rearward from the insulating body 10. In this embodiment, the conductive needle 20 is made of copper or other metals, and is not limited to any particular material. The conductive needle body 20 has a cylindrical portion 23, which is integrally formed and connected between the first contact portion 21 and the first connecting portion 22. The outer diameters of both the first contact portion 21 and the first connecting portion 22 are larger than the outer diameter of the cylindrical portion 23. The cylindrical portion 23 is embedded in the center of the insulating body 10, and a protruding ring 24 extends radially from the front end of the cylindrical portion 23. The protruding ring 24 is embedded in the insulating body 10, so that the conductive needle body 20 and the insulating body 10 are more firmly bonded and the waterproof effect is better. In addition, the first connecting portion 22 is located in the cavity 14 and protrudes rearward from the cavity 14. The first connecting portion 22 is spherical and is used for soldering with external wires.

[0034] The conductive outer shell 30 is fitted over the insulating body. The front end of the conductive outer shell 30 has a second contact portion 31, which is located around and separate from the first contact portion 21. The rear end of the conductive outer shell 30 has a second connecting portion 32. In this embodiment, the conductive outer shell 30 is made of iron or other metal, and is not limited to any particular material. The conductive outer shell 30 is cylindrical, and its rear end face abuts against the limiting ring 12 to prevent it from retracting. The second contact portion 31 is annular, and its front end face is flush with the front end face of the insulating body 10. Furthermore, the second connecting portion 32 is convex, and the wire groove 13 is directly opposite the second connecting portion 32. The second connecting portion 32 is used for soldering to external wires, and the wire groove 13 is used for positioning the wires and leading them out backwards.

[0035] The magnet 40 is fitted onto the front end of the insulating body 10 and located inside the conductive housing 30. In this embodiment, the magnet 40 is ring-shaped and contacts the inner side of the second contact portion 31 to provide sufficient magnetism to attract the external male connector.

[0036] The sealing ring 50 is fitted onto the front end of the insulating body 10 and located behind the magnet 40. The sealing ring 50 is clamped between the outer wall of the insulating body 10 and the inner wall of the conductive shell 30 to seal the assembly gap between the conductive shell 30 and the insulating body 10, thus achieving a waterproof function. In this embodiment, the sealing ring 50 is clamped between the rear end face of the magnet 40 and the stepped surface 11 of the insulating body 10, resulting in a more compact structure and better sealing and waterproofing performance. Furthermore, the sealing ring 50 is a silicone ring.

[0037] The assembly process of this embodiment is described in detail below:

[0038] First, the conductive needle body 20 is placed into the injection mold to form the insulating body 10, so that the conductive needle body 20 and the insulating body 10 are embedded and fixed together. Next, the sealing ring 50 and the magnet 40 are put into the front end of the insulating body 10 in sequence. Finally, the conductive shell 30 is tightly fitted and fixed to the outside of the insulating body 10 and covers the sealing ring 50 and the magnet 40.

[0039] In use, this product is fixed on an electronic device (such as a massager). The positive and negative wires are soldered to the first connecting part 22 and the second connecting part 32 respectively, and the positive and negative wires are connected to the control board of the electronic device. When the male end of the charging cable is close to this product, the male end automatically connects with this product under the magnetic force of the magnet 40. After the connection is completed, the first contact part 21 and the second contact part 31 respectively make contact with the corresponding terminals on the male end to conduct electricity, thus charging the electronic device.

[0040] The key design feature of this invention is that by using a conductive outer shell and a single conductive pin to form a single-point contact structure, it replaces the traditional at least two-point contact structure using at least two conductive pins. This reduces the number of parts in the magnetic female base, making product manufacturing and assembly easier, and resulting in a smaller overall product size and a more compact structure. Furthermore, by embedding the conductive pin into the insulating body and using a sealing ring to seal the assembly gap between the conductive outer shell and the insulating body, a waterproof function is achieved, meeting the requirements of use.

[0041] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A single-point magnetic female connector, characterized in that: The device includes an insulating body, a conductive needle, a conductive outer shell, a magnet, and a sealing ring. The conductive needle is a single unit, embedded and fixed within the insulating body. Its front end has a first contact portion that protrudes from the front end face of the insulating body, and a positioning recess is recessed at the center of the front end face. The rear end of the conductive needle has a first connecting portion that extends rearward from the insulating body. The conductive outer shell is fitted over the insulating body. Its front end has a second contact portion located around and separate from the first contact portion. The rear end of the conductive outer shell has a second connecting portion. The magnet is fitted over the front end of the insulating body and located within the conductive outer shell. The sealing ring is fitted over the front end of the insulating body and located behind the magnet, clamping between the outer wall of the insulating body and the inner wall of the conductive outer shell.

2. The single-point magnetic female seat according to claim 1, characterized in that: The insulating body is a multi-stage cylindrical structure. The outer diameter of the front end of the insulating body is smaller than that of the rear end. The rear edge of the insulating body extends radially to form a limiting ring. The conductive shell is cylindrical, and the rear end face of the conductive shell abuts against the limiting ring.

3. The single-point magnetic female seat according to claim 2, characterized in that: The limiting ring has a wire groove, which is directly opposite the second connecting part.

4. The single-point magnetic female connector according to claim 2, characterized in that: The rear end face of the insulating body is recessed with a cavity, and the first connecting part is located in the cavity and protrudes out of the cavity.

5. The single-point magnetic female seat according to claim 2, characterized in that: The magnet is ring-shaped and contacts the inner side of the second contact portion. The sealing ring is clamped between the rear end face of the magnet and the stepped surface of the insulating body.

6. The single-point magnetic female seat according to claim 1, characterized in that: The conductive needle has a column portion, which is integrally formed and connected between the first contact portion and the first connecting portion. The outer diameter of the first contact portion and the outer diameter of the first connecting portion are both larger than the outer diameter of the column portion. The column portion is embedded in the center of the insulating body, and the front end of the column portion extends radially to form a protruding ring, which is embedded in the insulating body.

7. The single-point magnetic female seat according to claim 1, characterized in that: The second contact portion is annular, and the front end face of the second contact portion is flush with the front end face of the insulating body.

8. The single-point magnetic female seat according to claim 1, characterized in that: The sealing ring is a silicone ring.

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