Durable magnetic attraction charging interface

Abstract

The utility model discloses a durable magnetic attraction charging interface, which comprises a conductive magnet, an insulating rubber sleeve, a conductive column and a shell, the insulating rubber sleeve is matched on the outer side of the conductive column, the insulating rubber sleeve is matched in a matching hole in the middle of the shell, and the projection of the shell on a plane perpendicular to the axial direction of the shell is a closed ring. A groove body with a closed annular radial section is arranged in the shell, the conductive magnet is matched in the groove body, and the shell covers two end faces in the radial direction and one end face in the axial direction of the conductive magnet in a semi-surrounding mode through the groove body. According to the shell, the inner surface and the outer surface of the conductive magnet in the magnetic attraction charging interface are respectively and additionally provided with a layer of corrosion-resistant protective shell, so that surface corrosion caused by contact between the inner surface of the conductive magnet and an insulating rubber sleeve is avoided, and the outer surface of the conductive magnet can be prevented from being corroded by substances such as air, sweat, seawater, cleaning supplies and cosmetics; and the magnetic attraction charging interface is more durable.

Description

Technical Field

[0001] The utility model relates to the field of charging interface structures, and specifically relates to a durable magnetic charging interface. Background Art

[0002] The existing magnetic charging interface is composed of a structure in which the positive and negative poles are respectively a conductive column (inner ring) and a magnetic conductor (outer ring), and then an insulating rubber sleeve is filled between the positive and negative poles (as shown in the attached Figure 4 specification).

[0003] During the use of the existing magnetic charging interface, substances such as sweat, seawater, cleaning supplies, and cosmetics in the surrounding environment will adhere to its surface. After these substances adhere to the surface of the magnetic charging interface and mix with the air, oxidation will occur on the surface of the magnetic charging interface. After long-term use, the surface coating of the magnetic conductive material of the magnetic charging interface will be corroded and peeled off, causing problems such as poor function and aesthetic defects of the magnetic charging interface, and even skin allergies may occur after contact with the human skin. Content of the Utility Model

[0004] Aiming at the above technical deficiencies, the utility model provides a magnetic charging interface with a more compact and durable structure design.

[0005] To achieve the above object, the utility model is realized through the following technical solutions:

[0006] The utility model discloses a durable magnetic charging interface, which includes a magnetic conductor, an insulating rubber sleeve, a conductive column, and a housing. The insulating rubber sleeve is fitted on the outside of the conductive column, and the insulating rubber sleeve is fitted in a fitting hole in the middle of the housing. The projection of the housing on a plane perpendicular to its axial direction is a closed ring. A groove with a closed-ring shape in the radial cross-section is provided inside the housing, and the magnetic conductor is fitted in the groove. The housing semi-surroundingly covers two end faces in the radial direction and one end face in the axial direction of the magnetic conductor through the groove.

[0007] Further, the housing is composed of an outer shell and an inner ring with closed-ring shapes in the radial cross-section. The inner ring is arranged in the middle of the outer shell and jointly forms a groove with the housing. The cross-section shape of any side in the circumferential direction of the outer shell in the axial direction of the outer shell is in the shape of a '7' and covers one end face in the radial direction and one end face in the axial direction of the magnetic conductor. The inner ring is located between the magnetic conductor and the insulating rubber sleeve and covers the other end face in the radial direction of the magnetic conductor.

[0008] Further, the housing is composed of the outer shell and the inner ring through an integrally formed manner.

[0009] Further, the housing is made of a corrosion-resistant material or the surface of the housing has a corrosion-resistant material layer.

[0010] Further, a first through hole is provided in the middle of the outer housing, a second through hole is provided in the middle of the inner ring, the central axes of both the first through hole and the second through hole are located on the same straight line, and the outer surface of the insulating rubber sleeve is respectively connected to the wall surface of the outer housing outside the first through hole and the wall surface of the inner ring outside the second through hole.

[0011] Further, the axial end of the conductive column near the opening side of the groove body and the axial end of the electromagnetic guide near the opening side of the groove body are both welding ends welded to the PCB.

[0012] Further, the axial end face of the conductive column near the opening side of the groove body, the axial end face of the electromagnetic guide near the opening side of the groove body, and the axial end face of the housing near the opening side of the groove body are all in the same plane.

[0013] The beneficial effects of the present utility model are as follows:

[0014] A corrosion-resistant protective shell is added to the inner and outer surfaces of the electromagnetic guide in the magnetic suction charging interface of the housing. In addition to preventing surface corrosion of the inner surface of the electromagnetic guide caused by contact with the insulating rubber sleeve, it can also prevent the outer surface of the electromagnetic guide from being corroded by substances such as air, sweat, seawater, cleaning supplies, and cosmetics. This solves problems such as poor contact and aesthetic defects of the magnetic suction charging interface caused by corrosion of the surface of the electromagnetic guide, making the magnetic suction charging interface more durable, and the structural design is more compact, reducing the volume and contact surface of the insulating rubber sleeve, and reducing the expansion and contraction problems caused by high temperature during production. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the internal structure of the first magnetic suction charging interface disclosed in the present utility model.

[0016] Figure 2 It is an exploded view of the components of the first magnetic suction charging interface disclosed in the present utility model.

[0017] Figure 3 It is a schematic diagram of the internal structure of the second magnetic suction charging interface disclosed in the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the magnetic suction charging interface in the prior art.

[0019] In the figure, 1. Electromagnetic guide; 2. Insulating rubber sleeve; 3. Conductive column; 4. Housing; 41. Fitting hole; 42. Groove body; 43. Outer housing; 431. First through hole; 44. Inner ring; 441. Second through hole; 5. Welding end. Detailed Embodiments

[0020] The utility model discloses a durable magnetic charging interface. As Figures 1 - 3 shown in combination, it includes a conductive magnet 1, an insulating rubber sleeve 2, a conductive post 3 and a housing 4. The insulating rubber sleeve 2 is fitted outside the conductive post 3. The insulating rubber sleeve 2 is fitted in a fitting hole 41 in the middle of the housing 4. The projection of the housing 4 in a plane perpendicular to its axial direction is a closed ring. A groove 42 with a closed-ring shape in the radial cross-section is provided inside the housing 4. The conductive magnet 1 is fitted in the groove 42. The housing 4 semi-surroundingly covers two end faces in the radial direction and one end face in the axial direction of the conductive magnet 1 through the groove 42.

[0021] It should be noted that when assembling this magnetic charging interface, first install the conductive magnet 1 into the housing 4 along the direction of fitting with the groove 42, then place the conductive post 3 into the fitting hole 41, and then form the insulating rubber sleeve 2 in the fitting hole 41 outside the conductive post 3 by means of potting, so as to form this magnetic charging interface. The part of the housing 4 covering one end face in the radial direction of the conductive magnet 1 is equivalent to adding a protective shell on the inner surface of the conductive magnet 1 of the magnetic charging interface, separating the insulating rubber sleeve 2 and the inner surface of the conductive magnet 1, and preventing the insulating rubber sleeve 2 and external substances on the side of the insulating rubber sleeve 2 from corroding the inner surface of the conductive magnet 1. At the same time, the part of the housing 4 covering one end face in the axial direction of the conductive magnet 1 and the other end face in the axial-radial direction of the conductive magnet 1 also adds a corrosion-resistant protective shell on the outer surface of the conductive magnet 1, so as to isolate substances such as air, sweat, seawater, cleaning supplies, and cosmetics, so as to reduce the corrosion of the outer surface of the conductive magnet 1. Through the setting of the outer shell 43, problems such as poor contact and aesthetic defects of the magnetic charging interface caused by the corrosion of the surface of the conductive magnet 1 are solved, making the magnetic charging interface more durable. Moreover, after adding the housing 4, the structure design of the magnetic charging interface becomes more compact, reducing the volume and contact surface of the insulating rubber sleeve 2, and can reduce the expansion and contraction problems caused by high temperature during production.

[0022] As a further preference of the above embodiment, as Figure 1 and Figure 2 shown in combination, the housing 4 is composed of an outer shell 43 and an inner ring 44 with a closed-ring shape in the radial cross-section. The inner ring 44 is arranged in the middle of the outer shell 43 and jointly forms the groove 42 with the housing 4. The cross-sectional shape of any side in the circumferential direction of the outer shell 43 in the axial direction of the outer shell 43 is in the shape of a '7' character, and covers one end face in the radial direction and one end face in the axial direction of the conductive magnet 1. The inner ring 44 is located between the conductive magnet 1 and the insulating rubber sleeve 2 and covers the other end face in the radial direction of the conductive magnet 1.

[0023] Among them, when assembling the magnetic charging interface, first fit the inner ring 44 into the middle of the electromagnetic conductor 1, then place the conductive column 3 into the middle of the inner ring 44, and then fit the outer shell 43 to the outside of the electromagnetic conductor 1. At this time, both the outer shell 43 and the inner ring 44 are fitted outside the electromagnetic conductor 1, so as to achieve the effect of forming the groove body 42 by using the outer shell 43 and the inner ring 44. Finally, an insulating rubber sleeve 2 is formed in the space outside the conductive column 3 by means of potting to form the magnetic charging interface; the housing 4 composed of the outer shell 43 and the inner ring 44 can form groove bodies 42 of different sizes. During the process of assembling electromagnetic conductors 1 of different sizes into the housing 4, the size of the groove body 42 can be adjusted adaptively, so as to meet the requirements of assembling electromagnetic conductors 1 of different sizes into the housing 4, and the production and assembly of the magnetic charging interface are more flexible.

[0024] As one of the embodiments of the present invention, as Figure 3 shown, the housing 4 is formed by integrally molding the outer shell 43 and the inner ring 44.

[0025] The difference between this embodiment and the above embodiment is that when installing the electromagnetic conductor 1 of a specified size into the groove body 42 of the housing 4, the integrally formed housing 4 is more convenient for the installation operation of the electromagnetic conductor 1, so that the assembly operation can be completed more quickly when assembling the magnetic charging interface.

[0026] As a further preference of the above embodiment, as Figure 1 and Figure 3 shown in combination, the housing 4 is made of a corrosion-resistant material or the surface of the housing 4 has a corrosion-resistant material layer.

[0027] Among them, the housing 4 itself has the property of corrosion resistance. That is, in addition to the function of making the magnetic charging interface more durable due to its own coverage of the electromagnetic conductor 1, by changing the structural design of the housing 4 itself, after the durability of the housing 4 itself is improved, the influence on the durability function of the magnetic charging interface is further enhanced, so that the durability of the magnetic charging interface is further enhanced.

[0028] As a further preference of the above embodiment, as Figure 1 shown, a first through hole 431 is provided in the middle of the outer shell 43, a second through hole 441 is provided in the middle of the inner ring 44, the central axes of the first through hole 431 and the second through hole 441 are both on the same straight line, and the outer surface of the insulating rubber sleeve 2 is respectively connected to the wall surface of the outer shell 43 outside the first through hole 431 and the wall surface of the inner ring 44 outside the second through hole 441.

[0029] Among them, through the connection of the insulating rubber sleeve 2 to the wall surface of the outer shell 43 outside the first through hole 431 and the wall surface of the inner ring 44 outside the second through hole 441, the independent outer shell 43 and the inner ring 44 can be tightly connected together, enhancing the connection tightness between the various parts of the magnetic charging interface, which is beneficial to maintaining the stability of the magnetic charging interface during operation.

[0030] As a further preference of the above embodiment, as Figure 1 and Figure 3 Combined as shown, the axial end of the conductive column 3 close to the opening side of the groove body 42 and the axial end of the electromagnetic conductor 1 close to the opening side of the groove body 42 are both welding ends 5 welded to the PCB.

[0031] Among them, after the electromagnetic conductor 1 is sealed inside and outside by the housing 4, if the magnetic charging interface needs to be processed by chip mounting, it is necessary to weld the welding end 5 to the PCB. After the charging magnetic interface is welded to the PCB, the magnetic charging interface is completely wrapped and in a vacuum state, making the magnetic charging interface more durable.

[0032] As a further preference of the above embodiment, as Figure 1 and Figure 3 Combined as shown, the axial end face of the conductive column 3 close to the opening side of the groove body 42, the axial end face of the electromagnetic conductor 1 close to the opening side of the groove body 42, and the axial end face of the housing 4 close to the opening side of the groove body 42 are all in the same plane.

[0033] The flatness of the above three end faces can prevent the magnetic charging interface welded to the PCB from shifting in position, enabling the charging interface on the external device to be accurately docked with the magnetic charging interface, and reducing the occurrence of poor contact caused by the unevenness of the magnetic charging interface.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A durable magnetic charging interface, characterized in that: The invention comprises a conductive magnet, an insulating rubber sleeve, a conductive column and a shell, wherein the insulating rubber sleeve is fitted on the outside of the conductive column, the insulating rubber sleeve is fitted in a fitting hole in the middle of the shell, the projection of the shell on a plane perpendicular to its axial direction is a closed ring, a groove body with a closed ring shape in a radial cross section is provided inside the shell, the conductive magnet is fitted in the groove body, and the shell semi-encloses two end faces in the radial direction and one end face in the axial direction of the conductive magnet through the groove body.

2. A durable magnetic charging interface according to claim 1, characterized in that: The shell is composed of an outer shell and an inner ring, both of which have a closed ring shape in radial cross section. The inner ring is arranged in the middle of the outer shell and forms a groove body together with the shell. The cross section of any side of the outer shell in the axial direction of the outer shell is in a 7-shape, and covers one end face of the conductive electromagnet in the radial direction and one end face of the conductive electromagnet in the axial direction. The inner ring is located between the conductive electromagnet and the insulating rubber sleeve, and covers the other end face of the conductive electromagnet in the radial direction.

3. A durable magnetic charging interface according to claim 2, characterized in that: The shell is formed by an outer shell and an inner ring in an integrally formed manner.

4. A durable magnetic charging interface according to any one of claims 2 or 3, characterized in that: The housing is made of a corrosion-resistant material or a surface of the housing has a corrosion-resistant material layer.

5. A durable magnetic charging interface according to claim 2, characterized in that: A first through hole is provided in the middle of the outer shell, and a second through hole is provided in the middle of the inner ring. The central axes of the first through hole and the second through hole are both located on the same straight line, and the outer surface of the insulating rubber sleeve is respectively connected to the outer shell wall outside the first through hole and the inner ring wall outside the second through hole.

6. A durable magnetic charging interface according to claim 1, characterized in that: The axial end of the conductive column close to the slot opening side and the axial end of the conductive magnet close to the slot opening side are both welding ends welded to the PCB.

7. A durable magnetic charging interface according to claim 6, characterized in that: The axial end surface of the conductive column close to the slot opening, the axial end surface of the conductive magnet close to the slot opening, and the axial end surface of the shell close to the slot opening are all in the same plane.

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