A magnetic connector

Abstract

The application relates to a magnetic attraction connector, which comprises a plug and a socket in end face butt joint, the plug comprises a plug insulator, a contact spring needle and a plug end magnet, the socket comprises a socket insulator, a contact terminal and a socket end magnet; the plug end magnet comprises at least one plug end N-pole magnet and at least one plug end S-pole magnet; the socket end magnet comprises a first group and a second group for matching and attracting the plug end magnets, when the first group matches and attracts the plug end magnets, the contact spring needle and the contact end face are in contact and conduction; when the second group matches and attracts the plug end magnets, the contact spring needle and the contact end face are separated and disconnected; and the conversion between the first group and the second group is realized by the radial rotation between the plug and the socket. The plug and the socket realize the connection and disconnection of the electrical signal through the radial rotation, the magnets will not be damaged or dropped due to the excessive collision of the magnetic attraction connector, and the service life of the magnetic attraction connector can be effectively prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of connector, and particularly relates to a magnetic connector. BACKGROUND

[0002] The magnetic connector is generally fixed by the magnetic attraction of the plug and the socket to realize the transmission of electrical signals. The magnetic connector has the advantages of simple use, large attraction force and quick connection, and is widely used in electronic devices.

[0003] The existing magnetic connector generally realizes the magnetic attraction and separation of the magnet by controlling the distance between the plug and the socket. When the distance between the plug and the socket gradually approaches, the magnetic force between the plug magnet and the socket magnet gradually increases to cause the magnetic attraction and collision, and finally the plug and the socket are tightly attached. When the distance between the plug and the socket gradually increases, the magnetic force between the plug magnet and the socket magnet gradually decreases to realize the separation of the plug and the socket. During the multiple attachment and separation of the plug and the socket, the magnet needs to be continuously collided and attracted, which is easy to cause the failure or falling of the magnet, so that the magnetic connector cannot be normally used, thereby affecting the transmission of electrical signals. SUMMARY

[0004] To solve the above problems, the present application provides a magnetic connector with a novel structure, which can realize the connection and disconnection of the contact by rotation, thereby realizing the conduction and disconnection of the connector, reducing the collision and attraction times of the plug and the socket, and enhancing the service life of the connector.

[0005] The technical problems can be solved by the following technical solutions. The magnetic connector according to the present application comprises a plug and a socket which are attached at the end face, the plug comprises a plug insulator, a contact spring needle and a plug end magnet, the socket comprises a socket insulator, a contact terminal and a socket end magnet, the plug end magnet comprises at least one plug end N-pole magnet and at least one plug end S-pole magnet, the plug end magnet is distributed in the front end of the plug insulator in the circumferential direction, the socket end magnet comprises a first group and a second group which are used for cooperating with the plug end magnet for magnetic attraction, the contact spring needle and the contact end face are in contact and conduction when the first group is attached and magnetically attracted with the plug end magnet, the contact spring needle and the contact end face are separated and disconnected when the second group is attached and magnetically attracted with the plug end magnet, and the conversion between the magnetic attraction of the first group and the magnetic attraction of the second group is realized by the radial rotation between the plug and the socket.

[0006] The technical problems can also be solved by the following technical measures.

[0007] The plug end magnet is fixed in the clamping groove at the front end of the plug insulator, and the front end surface is flush with the front end surface of the plug insulator.

[0008] The clamping groove is a special-shaped groove.

[0009] The contact end surface of the contact terminal is in the form of a circular arc, and the center of the circular arc is the center of the circle of the socket end magnet.

[0010] The contact terminal is farther away from the center, and the arc length of the contact surface is longer.

[0011] The contact surface of the contact terminal can be in contact with the contact spring needle when there is a rotational deviation of not more than ±30° between the plug and the socket.

[0012] The size of the socket end magnet in the direction perpendicular to the radial direction of the circle of the socket end magnet is greater than the size of the plug end magnet, and the size of the socket end magnet in the radial direction of the circle of the socket end magnet is smaller than the size of the plug end magnet.

[0013] The front end surface of the plug insulator is in the form of a rectangle, one end of the rectangle is fixed with a plug end N-pole magnet, and the other end is fixed with a plug end S-pole magnet; the front end of the socket insulator is uniformly distributed with four socket end magnet fixing clamping grooves in the circumferential direction, and the fixing clamping grooves are located on the fixing protrusions formed by the outward protrusion of the socket end insulator.

[0014] When the plug is rotated to a position where the plug end magnet is misaligned with the socket end magnet, the outer edge of the plug insulator protrudes from the socket insulator.

[0015] The socket end magnet is seated at the position of the center of the circle on the socket insulator, and a center terminal is further provided, and a center spring needle is correspondingly provided on the plug insulator, the tail of the center terminal and the center spring needle is connected with an indicating lamp for indicating whether the front surface of the plug and the socket is in contact, so as to prevent foreign matter from interfering with the contact surface when the plug and the socket are connected, and to ensure that the corresponding spring needle and terminal can be connected in place after rotation, preventing misalignment and other problems.

[0016] Compared with the prior art, the present application has obvious advantages and beneficial effects. By the above technical scheme, the present application can achieve considerable technical progress and practicality, and has wide industrial utilization value, at least having the following advantages:

[0017] This invention relates to a magnetic connector where the plug and socket connect and disconnect electrical signals via radial rotation. This prevents the magnets from failing or detaching due to excessive collisions, thus avoiding malfunctions and interference with signal transmission, effectively extending the connector's lifespan. Furthermore, the rotation of the plug and socket simplifies operation and prevents damage to the contact surfaces when disconnected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the plug structure of the magnetic connector of the present invention;

[0019] Figure 2 This is a schematic diagram of the socket structure of the magnetic connector of the present invention;

[0020] Figure 3 This is a schematic diagram of the conductive state of the headstock of the magnetic connector of the present invention;

[0021] Figure 4 for Figure 3 A sectional view;

[0022] Figure 5 This is a schematic diagram of the magnetic connector of the present invention in the disconnected state.

[0023] Figure 6 for Figure 5 A sectional view;

[0024] Figure 7 This is a schematic diagram of the socket end contact structure of the magnetic connector of the present invention.

[0025] [Explanation of Key Component Symbols]

[0026] 1: Plug insulator

[0027] 2: Contact spring pin

[0028] 3: Magnet at the plug end

[0029] 31: N-pole magnet at the plug end

[0030] 32: S-pole magnet at the plug end

[0031] 4: Socket insulator

[0032] 5: Contact terminals

[0033] 6: Socket end magnet

[0034] 61: First N-pole magnet

[0035] 62: First S-pole magnet

[0036] 63: Second S-pole magnet

[0037] 64: Second N-pole magnet Detailed Implementation

[0038] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of the specific implementation, structure, features and effects of the magnetic connector proposed according to the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

[0039] Please see Figures 1-7 This is a schematic diagram of the structure of the magnetic connector of the present invention. The magnetic connector includes a plug and a socket with their front end faces contacting each other. The plug includes a plug insulator 1, and a plurality of contact springs 2 are assembled inside the plug insulator 1 along a predetermined direction. The non-elastic end of the contact spring 2 is fixedly assembled in the contact mounting hole of the plug insulator 1, and the elastic end extends out of the front end face of the plug insulator 1 to facilitate elastic contact with the end face of the socket terminal. Preferably, the non-elastic end of the contact spring 2 is forcibly inserted into the contact mounting hole of the plug insulator 1, but this is not a limitation.

[0040] A plug-end magnet 3 is also fixed in the slot at the end of the plug insulator 1. There are at least two plug-end magnets 3, evenly distributed circumferentially along the front end of the plug insulator 1, to facilitate attraction with the socket-end magnet and achieve locking after plug-socket mating. The plug-end magnet 3 includes at least one plug-end N-pole magnet 31 and at least one plug-end S-pole magnet 32. The plug-end N-pole magnet 31 and plug-end S-pole magnet 32 ​​are respectively fixed in the irregular slot at the front end of the plug insulator 1, so that the front end of the plug insulator 1 does not have magnets of opposite polarities. Preferably, the plug-end N-pole magnet 31 and plug-end S-pole magnet 32 ​​are glued to the irregular slot at the front end of the plug insulator 1.

[0041] The socket includes a socket insulator 4 and a plurality of contact terminals 5 fixedly mounted within the socket insulator 4. The front end face of the contact terminal 5 is flush with the front end face of the socket insulator 4, thereby allowing the plug to rotate at any angle relative to the socket when the plug and socket are connected. In this embodiment, the contact terminals 5 are forcibly inserted into the mounting holes of the socket insulator 4.

[0042] The front end of the socket insulator 4 is provided with socket end magnets 6 for attracting and locking the plug and socket together with the plug end magnets 3. These socket end magnets 6 consist of two sets: a first set that attracts the plug end magnets 3 to lock the plug and socket when they are connected, and a second set that attracts the plug end magnets 3 to lock the plug and socket when they are disconnected. The plug end magnets 3 can switch from being attracted and locked to the first set to being attracted and locked to the second set by rotating around a rotation center. In other words, the switching of attraction and locking between the plug end magnets 3 and the two sets of socket end magnets 6 is achieved through rotation. The socket end magnets 6 are rotationally symmetrically distributed at the front end of the socket insulator 4, and their rotational symmetry center is defined as the center of the socket end insulator 4, which is also the center of the circumference of each socket end magnet 6.

[0043] The first set of socket end magnets includes at least one first N-pole magnet 61 and at least one first S-pole magnet 62, and the second set of socket end magnets includes at least one second S-pole magnet 63 and at least one second N-pole magnet 64. The first N-pole magnet 61, the first S-pole magnet 62, the second S-pole magnet 63, and the second N-pole magnet 64 are all fixed to an irregular slot at the front end of the socket insulator 4. Preferably, the magnets are fixed to the slot by adhesive bonding, but this is not a limitation.

[0044] When the plug magnet 3 is attracted to the first set of socket magnets, that is, when the plug N-pole magnet 31 is magnetically attracted to the first S-pole magnet 62, and the plug S-pole magnet 32 ​​is magnetically attracted to the first N-pole magnet 61, the plug contact spring pin 2 and the socket contact terminal 5 correspond one-to-one, and signal conduction is achieved through elastic contact of the end faces. When the plug magnet 3 is rotated to the position where it is attracted to the second set of socket magnets, that is, when the plug N-pole magnet 31 is magnetically attracted to the second S-pole magnet 63, and the plug S-pole magnet 32 ​​is magnetically attracted to the second N-pole magnet 64, the plug elastic contact 2 and the pin contact terminal 5 separate from each other, and the signal between the plug and the socket is disconnected. Thus, this invention can interrupt signal transmission while the plug and socket are connected. Only by rotating the plug interface can the plug and socket be switched on and off. It is not only simple to operate, but also protects the contact end faces of the plug and socket, preventing them from being damaged when the plug and socket are separated. When you need to separate the plug and socket, continue to rotate the plug until the magnet on the plug end and the magnet on the socket end of the same polarity are aligned, causing them to repel each other. At this point, the plug and socket can be easily separated.

[0045] In this embodiment, the front end face of the plug insulator 1 is rectangular, and a plug end magnet 3 is fixed at each end of the rectangle. One end is a plug end N-pole magnet 31, and the other end is a plug end S-pole magnet 32. At this time, the contact spring pins 2 inside the plug insulator 1 are distributed along the distribution direction of the two plug end magnets 3. The socket insulator 4 is circular in shape, and four socket end magnet fixing slots are evenly distributed on the front end face of the circular shape. These slots are located on the fixing protrusions formed by the outward protrusion of the socket insulator, so as to meet the requirements of rotational engagement between the plug and socket end faces while minimizing the volume of the socket insulator 4. In this embodiment, when the plug end magnet 3 rotates to a position offset from the socket end magnet, the two ends of the plug insulator 3 protrude from the socket insulator 4. When the plug end magnet 3 rotates to a position corresponding to the socket end magnet, the edges of the two ends of the plug insulator 3 correspond to the edges of the socket insulator 4.

[0046] The first set of socket end magnets and the second set of socket end magnets each include an N pole magnet 61 and a first S pole magnet 62, and the second set of socket end magnets includes a second S pole magnet 63 and a second N pole magnet 64.

[0047] To enhance the tolerance of the magnetic connector of the present invention, the contact surface of the contact terminal 5 increases with the increase of its distance from the center of the socket insulator 4. Preferably, the contact surface of the contact terminal 5 is an arc surface centered on the center of the socket insulator 4. In this case, the contact terminal 5 consists of an arc-shaped contact portion and a cylindrical connecting portion, wherein the front end face of the contact portion is a surface for elastic contact with the contact spring pin 2, and the tail end of the connecting portion extends out of the socket insulator 4 for connection with a cable.

[0048] In this embodiment, the contact surface of the contact terminal 5 is shaped like a WIF I and gradually increases from the center to the outside, which can eliminate the ±30° rotational deviation of the magnetic plug or magnetic socket, thereby reducing the accuracy requirements when the plug and socket are connected.

[0049] In this embodiment, the shapes of the socket magnet 6 and the plug magnet 3 are not exactly the same. When they are magnetically attracted to each other, the width dimension of the socket magnet 6 (the direction perpendicular to the radial direction of the circumference of the socket magnet 6) is greater than the width of the plug magnet 3, so that the plug magnet 3 can reliably attract the socket magnet 6 within a set rotation range. Preferably, the length dimension of the plug magnet 3 (the radial direction along the circumference of the socket magnet 6) is greater than the length of the socket magnet 6.

[0050] In this embodiment, a center terminal 51 is provided at the center of the socket insulator 4, and a corresponding center spring pin 21 is provided on the plug insulator 1. An indicator light is connected in series at the tail of the center terminal 51 and the center spring pin 21. Since the center terminal 51 and the center spring pin 21 are located at the center of rotation, the rotation of the plug does not affect their contact. Therefore, when the center terminal 51 and the center spring pin 21 are in contact and conducting, the indicator light is on, indicating that the magnetic plug and the magnetic socket are in contact. When the indicator light is off, it indicates that the magnetic plug and the magnetic socket are separated. This can prevent the magnetic plug and the magnetic socket from being affected by foreign objects when they are in contact, and can ensure that after rotation to the correct position, the corresponding spring pin and terminal can be aligned, preventing misalignment and other issues.

[0051] In this embodiment, the two sets of magnets at the socket end have a 90-degree angle between them, so the connection and disconnection of the electrical signal between the plug and the socket in this embodiment are achieved by a 90° radial rotation.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A magnetic connector comprising a plug and a socket which are end face mating, the plug comprising a plug insulator, a plurality of contact springs and a plug end magnet, the socket comprising a socket insulator, a plurality of contact terminals and a socket end magnet; characterized in that: The plug end magnet comprises at least one plug end N-pole magnet and at least one plug end S-pole magnet, which are distributed in the circumference of the front end of the plug insulator; the socket end magnet comprises a first group and a second group for cooperating with the plug end magnet, when the first group magnetically adheres to the plug end magnet, the corresponding contact spring needle and contact end surface are in contact and conduction; when the second group magnetically adheres to the plug end magnet, the corresponding contact spring needle and contact end surface are separated and disconnected; and the plug end magnet is switched between the first group and the second group by the radial rotation between the plug and the socket; the contact spring needle is distributed in the plug insulator in a set direction, and the contact terminal is also arranged in an array in the socket insulator.

2. The magnetic connector of claim 1, wherein: The plug end magnet is fixed in the clamping groove at the front end of the plug insulator, and the front end surface is flush with the front end surface of the plug insulator; the socket end magnet is fixed in the clamping groove at the front end of the socket insulator, and the front end surface is flush with the front end surface of the socket insulator.

3. The magnetic connector of claim 2, wherein: The clamping groove is a special-shaped groove.

4. The magnetic connector of claim 1, wherein: The contact end surface of the contact terminal is in the shape of a circular arc, and the center of the circular arc is the center of the circle in which the socket end magnet is located.

5. The magnetic connector of claim 4, wherein: The farther the contact terminal is from the center, the longer the arc length of the contact surface.

6. The magnetic connector of claim 5, wherein: The contact surface of the contact terminal can be in contact and conduction with the contact spring needle when the rotation deviation between the plug and the socket is not greater than ±30°.

7. The magnetic connector of claim 5, wherein: In the direction perpendicular to the radial direction of the circle in which the socket end magnet is located, the size of the socket end magnet is greater than that of the plug end magnet, and in the direction perpendicular to the radial direction of the circle in which the socket end magnet is located, the size of the socket end magnet is smaller than that of the plug end magnet.

8. The magnetic connector of claim 6, wherein: The front end surface of the plug insulator is in the shape of a rectangle, one end of the rectangle is fixed with one plug end N-pole magnet, and the other end is fixed with one plug end S-pole magnet. The front end of the socket insulator is uniformly provided with four socket end magnet fixing clamping grooves in the circumference, which are located on the fixing protrusions formed by the outward protrusion of the socket end insulator.

9. The magnetic connector of claim 8, wherein: When the plug is rotated to the position where the plug end magnet is misaligned with the socket end magnet, the outer edge of the plug insulator protrudes from the socket insulator.

10. The magnetic connector of any one of claims 1-9, wherein: The socket end magnet is seated at the position of the center of the circle on the socket insulator, and a center terminal is further provided, and a center spring needle is correspondingly provided on the plug insulator, and the tail portions of the center terminal and the center spring needle are connected with an indicating lamp for indicating whether the front end surfaces of the plug and the socket are in contact.

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