CN219833171U

CN219833171U - Special-shaped magnetic attraction structure

Info

Publication number: CN219833171U
Application number: CN202320433677.9U
Authority: CN
Inventors: 梁勇金; 毛华生; 盖伟东
Original assignee: Dongguan Liesheng Electronic Co Ltd
Current assignee: Dongguan Liesheng Electronic Co Ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-10-13
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a special-shaped magnetic attraction structure, which comprises: first magnet and second magnet, its characterized in that: the first magnet is provided with a conical end, the second magnet is provided with an arc-shaped magnetic groove corresponding to the shape of the conical end, and the first magnet and the second magnet form magnetic attraction force under the action of magnetic force. The first magnet and the second magnet adopt irregular shaped special-shaped designs, and can be suitable for products with special-shaped structures to provide magnetic attraction effect of mutual attraction. In addition, in order to enable the first magnet and the second magnet to have directivity in the adsorption process, the first magnet can only be abutted in a specific direction, the first magnet adopts a single-sided bipolar magnetized special-shaped magnet, the second magnet is formed by combining two symmetrical magnetic monomers, and the magnetizing directions of the two magnetic monomers are the same as the magnetizing direction of the first magnet.

Description

Special-shaped magnetic attraction structure

Technical field:

the utility model relates to the technical field of magnetic attraction products, in particular to a special-shaped magnetic attraction structure which can be used in an electronic product charging structure.

The background technology is as follows:

with the rapid development of electronic products, many small-sized electronic products are designed in a wireless way so as to be convenient to carry and use, and power is supplied by a battery configured by the small-sized electronic products. At present, a USB interface is mostly adopted as a common interface in an electronic product. Although the charging interface technology is mature and widely applied, the waterproof effect is poor, and the charging interface technology cannot cope with the higher waterproof grade of products. For example, in products such as telephone watches, headphones, smart glasses, etc., a contact charging structure is often used because of the small volume of such products themselves, the limited available space, and the high water resistance level requirements. In short, the electronic product and the charging seat (or the charging head) are not in plug-in fit, but the charging electrode of the electronic product is contacted with the charging electrode in the charging seat in a contact mode to form conductive communication, so that charging is completed. Of course, in order to increase the contact stability, an adsorbable magnet is generally disposed in the electronic product and the charging stand.

The contact type charging structure is widely applied to many small electronic products, but has certain defects, and the charging electrode of the electronic product is usually arranged on a plane of the product, and the plane is used as a plane for being in butt joint with the charging seat. However, many products are irregular in shape, the product cannot find a proper plane as a charging contact plane, and if a plane is specially designed on the surface of the product, the overall appearance of the product is affected. In order to overcome this problem, although a shaped charging structure may be provided at a non-planar position on the surface of the electronic product according to the actual shape of the electronic product, this causes a new problem, and the current magnet shape is generally relatively regular, and these magnets having a regular shape are not suitable for use in the shaped charging structure.

In view of the above, the present inventors have proposed the following technical solutions.

The utility model comprises the following steps:

the utility model aims to overcome the defects of the prior art and provide the special-shaped magnetic attraction structure which can be used in a special-shaped charging structure.

In order to solve the technical problems, the utility model adopts the following technical scheme: structure is inhaled to dysmorphism magnetism includes: first magnet and second magnet, its characterized in that: the first magnet is provided with a conical end, the second magnet is provided with an arc-shaped magnetic groove corresponding to the shape of the conical end, and the first magnet and the second magnet form magnetic attraction force under the action of magnetic force.

In the above technical scheme, when the first magnet and the second magnet are attracted to each other under the action of magnetic force, the center position of the tip of the conical end of the first magnet points to the center position of the magnetic groove of the second magnet.

Furthermore, in the above technical solution, the first magnet is a single-sided bipolar magnetized magnet, and the magnetizing direction is: magnetizing along the direction of the perpendicular conical surface along the opposite sides respectively, and the magnetic poles of the magnetizing directions of the opposite sides are opposite.

In the above technical solution, the taper angle of the conical end in the first magnet is 45 degrees.

In the above technical scheme, the second magnet is formed by combining two symmetrical magnetic monomers, and the joint surface of the two magnetic monomers is positioned on the plane where the central line of the longitudinal axis of the second magnet is positioned.

Furthermore, in the above technical solution, the outer sides of the two magnetic monomers have a chamfer plane of 45 degrees as a magnetizing surface, and the magnetizing direction is: magnetizing along the direction perpendicular to the chamfer plane on the two magnetic monomers respectively, and the magnetic poles of the magnetizing directions of the two magnetic monomers are opposite.

In the above technical solution, the first magnet is mounted in a charging unit of the electronic product, and the second magnet is mounted in a charging seat matched with the charging unit; the charging part is provided with a first electrode, and the charging seat is provided with a second electrode; the charging part is provided with a conical part combined with the charging seat, and the first electrode is exposed on the surface of the conical part; the charging seat is provided with a combining groove matched with the conical part, and the second electrode is exposed in the combining groove; after the charging part and the charging seat are in butt joint under the mutual adsorption of the first magnet and the second magnet, the first electrode and the second electrode form electrical contact.

In the above technical solution, the first magnet is located in the interlayer space of the conical portion, and the tip of the conical end of the first magnet points to the tip of the conical portion; the second magnet is positioned at the lower side of the bottom of the combining groove, and the magnetic groove of the second magnet is coated on the outer wall of the combining groove.

In the above technical solution, a first circuit board is disposed in the tapered portion, and the first electrode extends into the tapered portion and is electrically connected to the first circuit board; the charging seat is internally provided with a second circuit board, one end of the second electrode is electrically connected to the second circuit board, and the other end of the second electrode extends into the combining groove.

Furthermore, in the above technical scheme, the second electrode extends to one end in the combining groove to form the elastic contact part through bending, and the inner wall of the combining groove is provided with an electrode hole for the elastic contact part to extend out.

By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

1. the first magnet and the second magnet adopt irregular shaped special-shaped designs, and can be suitable for products with special-shaped structures to provide magnetic attraction effect of mutual attraction.

2. In order to enable the first magnet and the second magnet to have directivity in the adsorption process, the first magnet can only be abutted in a specific direction, the first magnet adopts a single-sided bipolar magnetized special-shaped magnet, the second magnet is formed by combining two symmetrical magnetic monomers, and the magnetizing directions of the two magnetic monomers are the same as the magnetizing direction of the first magnet.

3. The utility model can be used in the special-shaped charging structure of the electronic product, not only can adapt to the modeling of the product and is convenient to install, but also can provide a magnetic attraction effect with directivity to ensure the correctness of charging connection.

Description of the drawings:

fig. 1 is a perspective view of the utility model applied in a shaped charging structure;

fig. 2 is a perspective view showing a state in which a charging portion is separated from a charging stand in the shaped charging structure of fig. 1;

fig. 3 is a perspective view of a charging portion in the shaped charging structure of fig. 1;

fig. 4 is an exploded perspective view of the charging section in the shaped charging structure of fig. 1;

FIG. 5 is a cross-sectional view of the utility model as applied to a shaped charging structure;

FIG. 6 is a perspective view of the present utility model;

FIG. 7 is a cross-sectional view of the utility model in another direction as applied to a shaped charging structure;

fig. 8 is a perspective view of the present utility model applied to a bone conduction headset.

The specific embodiment is as follows:

the utility model will be further described with reference to specific examples and figures.

The utility model is a special-shaped magnetic attraction structure, as shown in fig. 6, comprising: a first magnet 3 and a second magnet 4. The first magnet 3 has a conical end 31, the second magnet 4 of the conical end 31 has an arc-shaped magnetic groove 41 corresponding to the shape of the conical end 31, the first magnet 3 and the second magnet 4 form magnetic attraction force under the action of magnetic force, and when the first magnet 3 and the second magnet 4 are attracted to each other under the action of magnetic force, the center position of the tip of the conical end 31 of the first magnet 1 points to the center position of the magnetic groove 41 of the second magnet 4.

To further illustrate the utility model and its application, it is described below with reference to fig. 1-5. The utility model can be used in a shaped charging structure comprising: a charging unit 1 and a charging stand 2. The charging part 1 is installed on a related electronic product, the charging part 1 can be directly used as a part of the electronic product, and the electronic product is charged by matching the charging part 1 with the charging seat 2.

The special-shaped charging structure adopts contact type charging, a first electrode 10 is arranged on the charging part 1, a second electrode 20 is arranged on the charging seat 2, and after the charging part 1 and the charging seat 2 are combined with each other, the first electrode 10 and the second electrode 20 form electrical contact to realize charging.

The charging unit 1 has a tapered portion 100 combined with the charging base 2, and the first electrode 10 is exposed on the surface of the tapered portion 100. In order to ensure the directionality of the charging, the taper portion 100 is a non-spiral body. As shown in fig. 3, the cross section of the tapered portion 100 is elliptical or oblong.

The charging portion 1 is provided with two first electrodes 10 for positive and negative electrodes, and in this embodiment, the two first electrodes 10 are in a strip shape and are symmetrically disposed on opposite surfaces of the tapered portion 100.

As shown in fig. 5, a first circuit board 11 is disposed in the tapered portion 100, and the first electrode 10 extends into the tapered portion 100 and is electrically connected to the first circuit board 11. The first electrode 10 may be integrally connected directly to the circuit board 11, or may be connected through other conductive members. The first circuit board 11 is provided with conductive posts 12 corresponding to the first electrodes 10, and the conductive posts 12 are used for connecting with working circuits in the electronic product.

The charging stand 2 has a coupling groove 200 matching with the taper part 100, and the second electrode 20 is exposed in the coupling groove 200. Since the conical portion 100 adopts a non-spiral body with an elliptical or oblong cross section, in order to reduce the length of the charging stand, a notch 202 may be formed in the long axis direction of the conical portion 100 corresponding to the coupling groove 200, and the notch 202 is also beneficial to the stability of the charging portion 1 when placed.

As shown in fig. 4, the housing of the charging stand 2 is composed of a shell 21 and a bottom cover 22, a second circuit board 23 is disposed in the housing, one end of the second electrode 20 is electrically connected to the second circuit board 23, and the other end extends into the combining groove 200. One end of the second electrode 20 extending into the combining groove 200 is bent to form an elastic contact portion 201, and an electrode hole 211 for extending out of the elastic contact portion 201 is formed in the inner wall of the combining groove 200.

The second circuit board 23 is located below the coupling groove 200 due to space limitation, and the second electrode 20 is located at a side of the coupling groove 200. In order to secure the strength of the second electrode 20, a support column 24 is fixed on the second circuit board 23, and the second electrode 20 is supported by the support column 24, and extends from bottom to top from the second circuit board 23, so that the elastic contact portion 211 protrudes from the electrode hole 211.

The charging seat 2 is also provided with a lead 25, and the lead 25 is connected with the second circuit board 23 in a lead way to input an external power supply.

In order to realize stable matching combination of the combination grooves 200 on the charging part 1 and the charging seat 2 of the special-shaped charging structure, the first magnet 3 and the second magnet 4 which can be mutually adsorbed are arranged in the charging part 1 and the charging seat 2. The charging seat 2 can be tightly attached together through the magnetic attraction effect of the first magnet 3 and the second magnet 4, so that continuous circuit connection is ensured. Specifically, the first magnet 3 is provided in the tapered portion 100 of the charging portion 1; a second magnet 4 capable of adsorbing the first magnet 3 is arranged in the charging seat 2 and outside the combining groove 200.

Since the tapered portion 100 and the coupling groove 200 are shaped in a special manner, the first magnet 3 and the second magnet 4 should be as close to the tapered portion 100 and the coupling groove 200 as possible in order to maximize the magnetic attraction force provided by the first magnet 3 and the second magnet 4 when charged. When the first magnet 3 is mounted, the tip of the conical end 31 of the first magnet is directed to the tip of the conical portion 100, and the conical end 31 can fit into the tip of the conical portion 100. The magnetic groove 41 of the second magnet 4 may be just coated on the outer wall of the coupling groove 200. In this way, when the charging portion 1 is engaged with the charging stand 2, a large magnetic attraction force can be generated between the first magnet 3 and the second magnet 4.

In order to make the first magnet 3 and the second magnet 4 have directionality in the adsorption process, so that the charging part 1 can only be abutted in a specific direction when being abutted with the charging seat 2, so as to ensure that the first electrode 10 and the second electrode 20 are accurately abutted, the utility model adopts the following magnetizing mode. As shown in fig. 7, in the present embodiment, for the first magnet 3, a shaped magnet with one-sided bipolar magnetization is used, specifically, for the conical end 31 of the first magnet 3, the magnetization direction is: the second magnet 3 is magnetized in the direction of the perpendicular conical surface from the opposite sides, respectively, i.e., in the directions a, B as shown in fig. 7. When magnetizing, the magnetic poles in the direction A and the direction B are opposite. In order to facilitate the machining, the taper angle of the conical end 31 may be designed to be 45 degrees.

As shown in fig. 6 and 7, for the second magnet 4, for convenience of processing, the second magnet 4 is formed by combining two symmetrical magnetic monomers 401 and 402, and the joint surface of the two magnetic monomers 401 and 402 is exactly located on the plane where the central line of the longitudinal axis of the second magnet 4 is located. The magnetizing directions of the two magnetic units 401 and 402 are the same, that is, the magnetic unit 401 and the magnetic unit 402 are magnetized along the direction a and the direction B in fig. 7. Also, for convenience of processing and convenience of magnetization, the outer sides of the magnetic units 401 and 402 are provided with chamfer planes 403 and 404 with 45 degrees, and magnetization of the second magnet 4 is realized by taking the chamfer planes 403 and 404 as magnetization surfaces. When magnetizing, the magnetic poles in the direction a and the direction B are opposite, so that the magnetic pole direction of the region of the magnetic unit 401 constituting the coupling groove 200 is opposite to the magnetic pole direction of the region of the magnetic unit 402 constituting the coupling groove 200. For example, as shown in fig. 6, the magnetic pole direction of the region of the magnetic cell 401 constituting the coupling groove 200 is N pole, and the magnetic pole direction of the region of the magnetic cell 402 constituting the coupling groove 200 is S pole.

The first magnet 3 and the second magnet 4 adopt the magnetizing mode or the polarity of the magnets in the adsorption process, so that when the charging part 1 is in butt joint with the charging seat 2, the charging part can only be in butt joint according to a specific direction, and the error in butt joint direction when a user charges can be avoided.

In order to further fix the first magnet 3 and the second magnet 4, as shown in fig. 5, the charging stand 1 may employ a double-layered casing, and the first magnet 3 is disposed in an interlayer of the double-layered casing. For the second magnet 4, a positioning groove matched with the second magnet 4 is formed on the surface of the bottom of the combining groove 200.

The combination groove 200 on the charging unit 1 and the charging stand 2 is different from the existing charging structure with regular shape, and the overall shape is relatively unique, so that the combination groove is particularly suitable for some electronic products with curved surfaces, lack of installation planes, small size and higher waterproof grade. Fig. 8 is a schematic view showing the application of the present utility model to a bone conduction headset, and the bone conduction headset 5 includes: the earphone main body 51, the ear hook 52 and the rear hook 53 are arranged at the round corner end formed by the ear hook 52 by the charging part 100 with the first magnet 3, and then the contact type magnetic attraction charging can be realized by matching with the corresponding charging seat 2.

It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Claims

1. Structure is inhaled to dysmorphism magnetism includes: first magnet and second magnet, its characterized in that: the first magnet is provided with a conical end, the second magnet is provided with an arc-shaped magnetic groove corresponding to the shape of the conical end, and the first magnet and the second magnet form magnetic attraction force under the action of magnetic force;

the first magnet adopts a single-sided bipolar magnetized magnet, and the magnetizing direction is as follows: magnetizing along the direction of the perpendicular conical surface along the opposite sides respectively, and the magnetic poles of the magnetizing directions of the opposite sides are opposite;

the second magnet is formed by combining two symmetrical magnetic monomers, and the joint surface of the two magnetic monomers is positioned on the plane where the central line of the longitudinal axis of the second magnet is positioned;

when the first magnet and the second magnet are attracted to each other under the action of magnetic force, the center position of the tip of the conical end of the first magnet points to the center position of the magnetic groove of the second magnet.

2. The profiled magnetic attraction structure as claimed in claim 1, wherein: the cone angle of the conical end in the first magnet is 45 degrees.

3. The profiled magnetic attraction structure as claimed in claim 2, characterized in that: the outer sides of the two magnetic monomers are provided with chamfer planes of 45 degrees serving as magnetizing surfaces, and the magnetizing directions are as follows: magnetizing along the direction perpendicular to the chamfer plane on the two magnetic monomers respectively, and the magnetic poles of the magnetizing directions of the two magnetic monomers are opposite.

4. A shaped magnet structure according to any one of claims 1-3, wherein: the first magnet is arranged in a charging part of the electronic product, and the second magnet is arranged in a charging seat matched with the charging part; the charging part is provided with a first electrode, and the charging seat is provided with a second electrode; the charging part is provided with a conical part combined with the charging seat, and the first electrode is exposed on the surface of the conical part; the charging seat is provided with a combining groove matched with the conical part, and the second electrode is exposed in the combining groove; after the charging part and the charging seat are in butt joint under the mutual adsorption of the first magnet and the second magnet, the first electrode and the second electrode form electrical contact.

5. The profiled magnetic attraction structure as claimed in claim 4, wherein: the first magnet is positioned in the interlayer space of the conical part, and the tip of the conical end of the first magnet points to the tip of the conical part; the second magnet is positioned at the lower side of the bottom of the combining groove, and the magnetic groove of the second magnet is coated on the outer wall of the combining groove.

6. The profiled magnetic attraction structure as claimed in claim 4, wherein: the first electrode extends into the conical part and is electrically connected to the first circuit board; the charging seat is internally provided with a second circuit board, one end of the second electrode is electrically connected to the second circuit board, and the other end of the second electrode extends into the combining groove.

7. The profiled magnetic attraction structure as claimed in claim 4, wherein: one end of the second electrode extending into the combining groove is bent to form an elastic contact part, and an electrode hole for the elastic contact part to extend out is formed in the inner wall of the combining groove.