CN218482046U

CN218482046U - Magnetic ring component

Info

Publication number: CN218482046U
Application number: CN202222571398.7U
Authority: CN
Inventors: 杨家春
Original assignee: Shenzhen Torras Technology Co ltd
Current assignee: Shenzhen Torras Technology Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-02-14
Anticipated expiration: 2032-09-27

Abstract

The application provides a magnetic ring assembly, which comprises a plurality of first magnetic pieces and a plurality of magnetic modules, wherein the first magnetic pieces and the magnetic modules are sequentially and alternately arranged to form an annular structure, and each magnetic module comprises a second magnetic piece and a third magnetic piece which are arranged along the radial direction; the first magnetic part comprises a first magnetic part and a second magnetic part which are distributed along the radial direction, and the magnetic field directions of the first magnetic part and the second magnetic part are both axial; the magnetic field direction of the second magnetic part is radial; the magnetic field direction of the third magnetic part is axial. This magnetic ring subassembly carries out special construction and magnetic pole distribution design through halbach principle for the magnetic ring subassembly have can with external device stable adsorbed strong magnetic surface and with the weak magnetic surface of electronic equipment adsorption affinity weak, reduce the influence of magnetic ring subassembly to the inside electronic components of cell-phone, the dismantlement of being convenient for between electronic equipment and the magnetic ring subassembly simultaneously breaks away from, and then improves user and use experience.

Description

Magnetic ring component

Technical Field

The application relates to the technical field of electronic equipment accessories, in particular to a magnetic ring assembly.

Background

Along with the continuous development of society, the cell-phone has become the indispensable communication tools of everyone, and the cell-phone protective housing has not only pleasing to the eye effect to the cell-phone, also has fine guard action to the cell-phone, has been well favored by everyone always. In order to connect the mobile phone with the external device, such as wireless charger, card bag, and vehicle-mounted bracket, the magnetic assembly is disposed in the protective housing to magnetically connect the electronic device with the external device.

However, the magnetic field intensity of the conventional magnet assembly facing the electronic device is the same as the magnetic field intensity of the conventional magnet assembly facing the external device, and therefore, stable connection between the protective case and the external device is required to ensure that the magnet assembly has a strong magnetic field intensity. However, when the magnetic field intensity of the magnet assembly is strong, the mobile phone shell is firmly connected with an external device, but is also firmly connected with the electronic equipment, so that a user needs to take off or replace the protective shell, and the use is inconvenient; meanwhile, the magnetism of the magnet assembly facing one side of the electronic equipment is too large, and the normal work of electronic components inside the mobile phone can be influenced to a certain extent, such as wireless charging. And reduce magnet assembly's magnetic field intensity, will make cell-phone shell and external device be connected insecure again, the user uses and experiences not good.

Disclosure of Invention

For solving the technical problem that exists now, this application provides one kind can with external device firm in connection, can with the light magnetic ring subassembly that breaks away from and do not influence the inside electronic components normal work of cell-phone of electronic equipment.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

on one hand, the embodiment of the application provides a magnetic ring assembly, which comprises a plurality of first magnetic pieces and a plurality of magnetic modules, wherein the first magnetic pieces and the magnetic modules are sequentially and alternately arranged to form an annular structure, and each magnetic module comprises a second magnetic piece and a third magnetic piece which are arranged along the radial direction;

the first magnetic part comprises a first magnetic part and a second magnetic part which are distributed along the radial direction, the magnetic field directions of the first magnetic part and the second magnetic part are both axial, and the magnetic poles of the upper surface of the first magnetic part are opposite to the magnetic poles of the upper surface of the second magnetic part in polarity; the magnetic field direction of the second magnetic part is radial; the magnetic field direction of the third magnetic part is axial.

In one embodiment, the third magnetic part is positioned on one side of the second magnetic part far away from the center of the annular structure;

the second magnetic part comprises a third magnetic part and a fourth magnetic part which are distributed along the radial direction, the magnetic ring assembly comprises an inner ring area and an outer ring area, and the outer ring area is positioned on one side of the inner ring area, which is far away from the center of the annular structure; the first magnetic part and the third magnetic part are both located in the inner ring area, and the second magnetic part and the third magnetic part are both located in the outer ring area.

In one embodiment, the magnetic poles of the upper surface and the lower surface of the third magnetic part are the same as the magnetic pole of the upper surface of the first magnetic part, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part are opposite to the magnetic pole of the upper surface of the first magnetic part, the magnetic pole of the upper surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the first magnetic part, and the magnetic pole of the lower surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the third magnetic part.

In one embodiment, the second magnetic part is positioned on one side of the third magnetic part far away from the center of the annular structure;

the second magnetic part comprises a third magnetic part and a fourth magnetic part which are distributed along the radial direction, the magnetic ring assembly comprises an inner ring area and an outer ring area, and the outer ring area is positioned on one side of the inner ring area, which is far away from the center of the annular structure; the first magnetic part and the third magnetic part are both located in the inner ring area, and the second magnetic part and the fourth magnetic part are both located in the outer ring area.

In one embodiment, the magnetic poles of the upper surface and the lower surface of the third magnetic part are both the same as the magnetic pole polarity of the upper surface of the first magnetic part, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part are both opposite to the magnetic pole polarity of the upper surface of the first magnetic part, the magnetic pole of the upper surface of the third magnetic part is the same as the magnetic pole polarity of the upper surface of the first magnetic part, and the magnetic pole of the lower surface of the third magnetic part is opposite to the magnetic pole polarity of the upper surface of the third magnetic part.

On the other hand, the embodiment of the present application provides another magnetic ring assembly, which includes a plurality of first magnetic members and a plurality of magnetic modules, where the first magnetic members and the magnetic modules are alternately arranged in sequence to form an annular structure, and each magnetic module includes a second magnetic member and a third magnetic member arranged in a radial direction;

the magnetic field direction of the first magnetic part is radial, the first magnetic part and the second magnetic part are distributed along the radial direction, the magnetic pole of the upper surface of the first magnetic part is opposite to the magnetic pole of the upper surface of the second magnetic part in polarity, and the magnetic pole of the upper surface of the first magnetic part is the same as the magnetic pole of the lower surface of the first magnetic part in polarity; the magnetic field direction of the second magnetic part is radial; the magnetic field direction of the third magnetic part is axial.

In one embodiment, the third magnetic element is positioned on one side of the second magnetic element away from the center of the annular structure;

In one embodiment, the magnetic poles of the upper surface and the lower surface of the third magnetic part are both the same as the magnetic pole of the upper surface of the first magnetic part, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part are both opposite to the magnetic pole of the upper surface of the first magnetic part, the magnetic pole of the upper surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the first magnetic part, and the magnetic pole of the lower surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the third magnetic part.

In one embodiment, the magnetic ring assembly further comprises a reinforcing magnetic ring, the reinforcing magnetic ring is arranged on one side of the upper surface or the lower surface of the magnetic ring assembly, and the magnetic field direction of the reinforcing magnetic ring is radial or axial.

In one embodiment, the upper surface of the first magnetic part, the upper surface of the second magnetic part and the upper surface of the third magnetic part are arranged in a flush manner; and/or the lower surfaces of the first magnetic part, the second magnetic part and the third magnetic part are arranged in a flush manner.

In one embodiment, the first magnetic part is in contact connection with or spaced from the magnetic module; and/or the second magnetic part is in contact connection with or arranged at a distance from the third magnetic part.

In one embodiment, the first magnetic member is formed with first inclined surfaces on both sides in the circumferential direction, the magnetic module is formed with second inclined surfaces on both sides in the circumferential direction, and the adjacent first inclined surfaces and the adjacent second inclined surfaces are parallel to each other.

The magnetic ring assembly of the application has at least the following beneficial effects: the utility model provides a magnetic ring subassembly carries out the special construction through halbach principle to first magnetic part, second magnetic part and third magnetic part and arranges and the design of magnetic pole distribution, make the magnetic ring subassembly have can with the stable strong magnetic surface that adsorbs of external device and with the weak magnetic surface that electronic equipment adsorption affinity is extremely weak, reduce the influence of magnetic ring subassembly to the inside electronic components of cell-phone, the dismantlement of being convenient for between electronic equipment and the magnetic ring subassembly breaks away from simultaneously, and then improve user's use and experience.

Drawings

Fig. 1 is a front view of a magnet ring assembly according to a first embodiment of the present application;

FIG. 2 is a rear view of the magnet ring assembly of FIG. 1;

FIG. 3 is a perspective view of the first magnetic member and the magnetic module of FIG. 1;

FIG. 4 is a perspective view of the first magnetic member and the magnetic module of FIG. 1 in another direction;

fig. 5 is a view showing the arrangement of the first magnetic member, the second magnetic member and the third magnetic member in fig. 1;

FIG. 6 is a cross-sectional view of the first magnetic member of FIG. 3;

FIG. 7 is a cross-sectional view of the magnetic module of FIG. 3;

fig. 8 is a front view of a magnetic ring assembly according to a second embodiment of the present application;

FIG. 9 is a rear view of the magnet ring assembly of FIG. 8;

FIG. 10 is a cross-sectional view of the first magnetic member of FIG. 8;

FIG. 11 is a cross-sectional view of the magnetic module of FIG. 8;

fig. 12 is a front view of a magnet ring assembly according to a third embodiment of the present application;

FIG. 13 is a rear view of the magnet ring assembly of FIG. 12;

FIG. 14 is a cross-sectional view of the first magnetic member of FIG. 12;

FIG. 15 is a cross-sectional view of the magnetic module of FIG. 12;

fig. 16 is a front view of a magnet ring assembly according to a fourth embodiment of the present application;

FIG. 17 is a rear view of the magnet ring assembly of FIG. 16;

fig. 18 is a cross-sectional view of the first magnetic member of fig. 16;

FIG. 19 is a cross-sectional view of the magnetic module of FIG. 16;

fig. 20 is a perspective view of a magnetic ring assembly according to a fifth embodiment of the present application;

fig. 21 is a perspective view of the fourth magnetic member in fig. 20;

fig. 22 is a perspective view of a magnet ring assembly according to a sixth embodiment of the present application;

fig. 23 is an enlarged view at a in fig. 22.

The elements in the figures are numbered as follows: a magnet ring assembly 100; a first magnetic member 10; a first magnetic part 11; a second magnetic part 12; a second magnetic member 20; a third magnetic part 21; a fourth magnetic part 22; a third magnetic member 30; a fourth magnetic member 40; a fifth magnetic part 41; a sixth magnetic portion 42; a first slope 51; a second ramp 52.

Detailed Description

The technical solution of the present application is further described in detail with reference to the drawings and specific embodiments.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The first embodiment is as follows:

referring to fig. 1 and fig. 2, a magnetic ring assembly 100 is provided in an embodiment of the present disclosure, and is applied to an electronic device protection case, so that the electronic device protection case can be magnetically connected to an external device. The electronic device may be a mobile phone or a tablet computer with a wireless charging function, the external device may be a wireless charging device, a card bag, or a vehicle-mounted support with a wireless charging or magnetic fixing function, and the embodiment specifically describes the case where the electronic device is a mobile phone and the external device is a wireless charging device. Be equipped with first magnetic ring in the cell-phone, be equipped with the second magnetic ring in the wireless charging, for the weight of minimizing magnetic ring subassembly 100 realizes magnetic force maximize simultaneously, magnetic ring subassembly 100 is preferred to be with the annular structure of first magnetic ring, second magnetic ring looks adaptation. Through the special magnetic structure design of the magnetic ring assembly 100, the magnetic ring assembly 100 can be provided with a strong magnetic surface with dense magnetic lines and a weak magnetic surface with sparse magnetic lines, the strong magnetic surface faces the wireless charger and is correspondingly adsorbed with the second magnetic coil, so that the electronic equipment protective shell is tightly connected with the wireless charger, and the adsorption stability is enhanced; the weak magnetic surface is towards the setting of electronic equipment and corresponds with first magnetosphere and adsorbs, reduces the inside electronic components's of cell-phone influence, makes the adsorption affinity weak between electronic equipment protective housing and the cell-phone simultaneously, and the user of being convenient for carries out the dismouting to the electronic equipment protective housing and changes.

The magnetic ring assembly 100 is composed of a plurality of strong magnetic units, which are sequentially arranged along the same circular circumferential direction to form the magnetic ring assembly 100 with an annular structure. Referring to fig. 3-5, each of the ferromagnetic units includes a first magnetic member 10 and magnetic modules, and the first magnetic member 10 and the magnetic modules are alternately arranged along a circumferential direction to form a magnetic ring assembly 100. Each magnetic module comprises a second magnetic element 20 and a third magnetic element 30, the second magnetic element 20 and the third magnetic element 30 being arranged in a radial direction.

It should be noted that, the first magnetic member 10 and the magnetic module, that is, the first magnetic member 10 and the second magnetic member 20, and the first magnetic member 10 and the third magnetic member 30 may be in contact with each other, or may be disposed at intervals; the second magnetic member 20 and the third magnetic member 30 may be in contact with each other or may be spaced apart from each other.

In the illustrated embodiment, in order to facilitate formation of the annular ferromagnetic assembly 100, the first magnetic member 10 and the magnetic module are preferably in a trapezoid-like structure, and circumferential widths of the first magnetic member 10 and the magnetic module are gradually reduced from a side away from a center of the ferromagnetic assembly 100 toward the center of the ferromagnetic assembly.

The magnetic ring assembly 100 has an upper surface and a lower surface in the axial direction, the upper surface is a strong magnetic surface connected with the magnetic charger, and the lower surface is a weak magnetic surface connected with the mobile phone. In order to make the magnetic force lines of the magnetic ring assembly 100 gather towards the upper surface to form a strong magnetic field and form a weak magnetic field on one side of the lower surface, the present application performs a special structure and magnetic pole distribution design on the first magnetic member 10, the second magnetic member 20 and the third magnetic member 30 by applying halbach principle. Specifically, the first magnetic member 10 includes a first magnetic part 11 and a second magnetic part 12 distributed along a radial direction, the magnetic field directions of the first magnetic part 11 and the second magnetic part 12 are both axial, and the magnetic poles of the upper surface of the first magnetic part 11 and the magnetic poles of the upper surface of the second magnetic part 12 are opposite in polarity; the magnetic field direction of the second magnetic member 20 is radial; the magnetic field direction of the third magnetic member 30 is axial.

In this embodiment, the third magnetic element 30 is located on a side of the second magnetic element 20 away from the center of the ring structure. The second magnetic member 20 includes a third magnetic portion 21 and a fourth magnetic portion 22 distributed in a radial direction, the magnetic ring assembly 100 includes an inner ring region and an outer ring region, the outer ring region is located on one side of the inner ring region away from the center of the ring structure, the first magnetic portion 11 and the third magnetic portion 21 are both located in the inner ring region, and the second magnetic portion 12 and the third magnetic member 30 are both located in the outer ring region. Because the magnetic field directions of the first magnetic part 11 and the second magnetic part 12 are both axial, the magnetic poles on the upper surface and the lower surface of the first magnetic part 11 are opposite in polarity, and the magnetic poles on the upper surface and the lower surface of the second magnetic part 12 are opposite in polarity; the magnetic poles on the upper surface and the lower surface of the third magnetic part 21 and the magnetic poles on the upper surface and the lower surface of the fourth magnetic part 22 have the same polarity because the magnetic field direction of the whole second magnetic member 20 is a radial direction; since the overall magnetic field direction of the third magnetic member 30 is an axial direction, the magnetic poles on the upper surface and the lower surface of the third magnetic member 30 have opposite polarities.

Further, the magnetic poles of the upper surface and the lower surface of the third magnetic part 21 are both the same as the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part 22 are both opposite to the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface of the third magnetic part 30 are opposite to the magnetic poles of the upper surface of the first magnetic part 11, and the magnetic poles of the lower surface of the third magnetic part 30 are opposite to the magnetic poles of the upper surface of the third magnetic part 30.

In this way, the respective magnetic poles of the first magnetic member 10, the second magnetic member 20, and the third magnetic member 30 are adjusted by different magnetizing directions, so that the magnetic ring assembly 100 has a structure in which the upper surface is a strong magnetic surface and the lower surface is a weak magnetic surface. Referring to fig. 6 and 7, in the present embodiment, the upper surface of the first magnetic part 11 is an N pole, the lower surface is an S pole, the upper surface of the second magnetic part 12 is an S pole, the lower surface is an N pole, the upper surface of the third magnetic part 21 is an N pole, the lower surface is an N pole, the upper surface of the fourth magnetic part 22 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 30 is an S pole, and the lower surface is an N pole.

In order to facilitate the installation of the first magnetic member 10 and the second magnetic member 20 and to maintain the uniformity of magnetic lines of force, the upper surface of the first magnetic member 10, the upper surface of the second magnetic member 20 and the upper surface of the third magnetic member 30 are flush; and/or the lower surfaces of the first magnetic part 10, the second magnetic part 20 and the third magnetic part 30 are flush. That is, the axial thicknesses of the first magnetic member 10, the second magnetic member 20, and the third magnetic member 30 may be equal.

It is understood that the magnetic ring assembly 100 may also be designed in other shapes, such as an elliptical ring shape, a straight bar shape, etc. Meanwhile, the magnetic ring assembly 100 may also be applied to other magnetic force absorption structures, and each magnetic pole of the first magnetic member 10, the second magnetic member 20, and the third magnetic member 30 may be adjusted to a corresponding magnetic pole through different magnetizing directions to meet the use requirement.

Example two:

referring to fig. 8 and 9, a second embodiment provides a magnetic ring assembly 100, which is different from the first embodiment in that the second magnetic element 20 is located on a side of the third magnetic element 30 away from the center of the ring structure. At this time, the first magnetic part 11 and the third magnetic part 30 are both located in the inner ring region, and the second magnetic part 12 and the fourth magnetic part are both located in the outer ring region.

The magnetic poles of the upper surface and the lower surface of the third magnetic part 21 are the same as the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part 22 are opposite to the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface of the third magnetic part 30 are the same as the magnetic poles of the upper surface of the first magnetic part 11, and the magnetic poles of the lower surface of the third magnetic part 30 are opposite to the magnetic poles of the upper surface of the third magnetic part 30. The magnetic ring assembly 100 thus has a structure in which the upper surface is a strong magnetic surface and the lower surface is a weak magnetic surface.

Referring to fig. 10 and 11, in the present embodiment, the upper surface of the first magnetic part 11 is an N pole, the lower surface is an S pole, the upper surface of the second magnetic part 12 is an S pole, the lower surface is an N pole, the upper surface of the third magnetic part 21 is an N pole, the lower surface is an N pole, the upper surface of the fourth magnetic part 22 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 30 is an N pole, and the lower surface is an S pole.

Example three:

referring to fig. 12 and 13, a magnetic ring assembly 100 is provided in a third embodiment, which is different from the first embodiment in that the magnetic field direction of the first magnetic member 10 is radial, so that the magnetic poles on the upper surface of the first magnetic part 11 are opposite to the magnetic poles on the upper surface of the second magnetic part 12, and the magnetic poles on the upper surface of the first magnetic part 11 are the same as the magnetic poles on the lower surface; the magnetic field direction of the second magnetic member 20 is radial; the magnetic field direction of the third magnetic member 30 is axial.

The magnetic poles of the upper surface and the lower surface of the third magnetic part 21 are the same as the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part 22 are opposite to the magnetic poles of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface of the third magnetic part 30 are opposite to the magnetic poles of the upper surface of the first magnetic part 11, and the magnetic poles of the lower surface of the third magnetic part 30 are opposite to the magnetic poles of the upper surface of the third magnetic part 30. The magnetic ring assembly 100 thus has a structure in which the upper surface is a strong magnetic surface and the lower surface is a weak magnetic surface.

Referring to fig. 14 and 15, in the present embodiment, the upper surface of the first magnetic part 11 is an N pole, the lower surface is an N pole, the upper surface of the second magnetic part 12 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 21 is an N pole, the lower surface is an N pole, the upper surface of the fourth magnetic part 22 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 30 is an S pole, and the lower surface is an N pole.

Example four:

referring to fig. 16 and 17, a magnetic ring assembly 100 is provided in the fourth embodiment, which is different from the third embodiment in that the second magnetic element 20 is located on a side of the third magnetic element 30 away from the center of the ring structure. At this time, the first magnetic part 11 and the third magnetic part 30 are both located in the inner ring region, and the second magnetic part 12 and the fourth magnetic part are both located in the outer ring region.

The magnetic poles of the upper surface and the lower surface of the third magnetic part 21 are the same as the magnetic pole of the upper surface of the first magnetic part 11, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part 22 are opposite to the magnetic pole of the upper surface of the first magnetic part 11, the magnetic pole of the upper surface of the third magnetic part 30 is the same as the magnetic pole of the upper surface of the first magnetic part 11, and the magnetic pole of the lower surface of the third magnetic part 30 is opposite to the magnetic pole of the upper surface of the third magnetic part 30. The magnetic ring assembly 100 thus has a structure in which the upper surface is a strong magnetic surface and the lower surface is a weak magnetic surface.

Referring to fig. 18 and 19, in the present embodiment, the upper surface of the first magnetic part 11 is an N pole, the lower surface is an N pole, the upper surface of the second magnetic part 12 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 21 is an N pole, the lower surface is an N pole, the upper surface of the fourth magnetic part 22 is an S pole, the lower surface is an S pole, the upper surface of the third magnetic part 30 is an N pole, and the lower surface is an S pole.

Example five:

referring to fig. 20, a fifth embodiment provides a magnetic ring assembly 100, which is different from the first embodiment in that the magnetic ring assembly 100 further includes a reinforcing magnetic ring, the reinforcing magnetic ring may be disposed on one side of an upper surface or a lower surface of the magnetic ring assembly 100, and a magnetic field direction of the reinforcing magnetic ring may be radial or axial, so as to further increase a magnetic force on one side of a strong magnetic surface of the magnetic ring assembly 100.

Specifically, the reinforcing magnetic ring includes a plurality of fourth magnetic members 40, and the plurality of fourth magnetic members 40 are sequentially arranged in the circumferential direction to form a reinforcing magnetic ring of an annular structure.

The reinforcing magnetic ring, the first magnetic member 10 and the magnetic module form an annular structure which is arranged in parallel at intervals, and the interval distance is determined according to the specific design requirement. The reinforcing magnetic ring is concentrically arranged with the annular structure formed by the first magnetic part 10 and the magnetic module, and the radial width of the reinforcing magnetic ring is approximately the same as that of the annular structure formed by the first magnetic part 10 and the magnetic module.

Referring to fig. 21, the fourth magnetic element 40 is preferably a fan-shaped structure, and the radial inner side surface and the radial outer side surface of the fourth magnetic element 40 are arc-shaped surfaces extending along the circumferential direction. The adjacent two fourth magnetic members 40 may be connected in contact with each other, or may have a gap. In this embodiment, a gap is formed between two adjacent fourth magnetic members 40, and the plurality of strong magnetic units of the magnetic ring assembly 100 and the plurality of fourth magnetic members 40 of the reinforcing magnetic ring are in one-to-one correspondence in the axial direction, that is, the number of strong magnetic units is the same as the number of the fourth magnetic members 40, and each fourth magnetic member 40 is axially disposed corresponding to one of the first magnetic member 10 and one of the magnetic modules.

In this embodiment, the reinforcing magnetic ring is disposed on one side of the lower surface of the magnetic ring assembly 100, and the magnetic field direction of the fourth magnetic member 40 is radial. The fourth magnetic member 40 includes a fifth magnetic part 41 and a sixth magnetic part 42 distributed in a radial direction, and the fifth magnetic part 41 is disposed toward the center of the reinforcing magnetic ring. The upper and lower surfaces of the fifth magnetic part 41 have the same magnetic polarity, the upper and lower surfaces of the sixth magnetic part 42 have the same magnetic polarity, and the upper surface of the fifth magnetic part 41 and the upper surface of the sixth magnetic part 42 have opposite magnetic polarities. More specifically, the upper and lower surfaces of the fifth magnetic part 41 are both N-poles, and the upper and lower surfaces of the sixth magnetic part 42 are both S-poles.

Example six:

the sixth embodiment is different from the first embodiment in that: in the first embodiment, the first magnetic member 10, the second magnetic member 20, and the third magnetic member 30 are each a plane parallel to the axial direction on both sides in the circumferential direction. Referring to fig. 22 and 23, in the present embodiment, the circumferential width of the first magnetic member 10 is sequentially decreased from the upper surface to the lower surface, so that the first inclined surfaces 51 are formed on both sides of the first magnetic member 10 in the circumferential direction, and the circumferential width of the magnetic module is sequentially increased from the upper surface to the lower surface, so that the second inclined surfaces 52 are formed on both sides of the second magnetic member 20 and the third magnetic member 30 in the circumferential direction. When a plurality of strong magnetic units form the strong magnetic assembly 100, the adjacent first and second

inclined surfaces

51 and 52 are parallel to each other to facilitate the assembly of the strong magnetic assembly 100, while increasing the magnet area to enhance the magnetic force.

Of course, in other embodiments, the circumferential width of the first magnetic element 10 may increase sequentially from the upper surface to the lower surface to form two first inclined surfaces 51, and the circumferential width of the magnetic module decreases sequentially from the upper surface to the lower surface to form two second inclined surfaces 52; alternatively, the two first inclined surfaces 51 may be disposed parallel to each other, and the two second inclined surfaces 52 are correspondingly disposed parallel to the first inclined surfaces 51.

It is understood that, under the teaching of the above embodiments of the present application, the technical features of different embodiments can be arbitrarily combined without contradiction, and all the technical features are within the protection scope of the present application. For example, in the second to fourth embodiments, each of the magnetic ring assemblies 100 may be provided with a reinforcing magnetic ring to further increase the magnetic force on the strong magnetic surface side of the magnetic ring assembly 100; in the second to fifth embodiments, the first magnetic member 10 may be formed with the first inclined surface 51 on both sides in the circumferential direction, and the magnetic module may be formed with the second inclined surface 52 on both sides in the circumferential direction, so as to facilitate the assembly of the ferromagnetic assembly 100 and enhance the magnetic force.

In summary, the magnetic ring assembly 100 of the embodiment of the present application performs a special structural arrangement and magnetic pole distribution design on the first magnetic member 10, the second magnetic member 20, and the third magnetic member 30 according to the halbach principle, and generates the strongest magnetic field by the least amount of magnets, so that the cost is low and the weight is small; make the magnetic ring subassembly 100 have simultaneously can with external device stable adsorbed strong magnetic surface and with the weak magnetic surface that electronic equipment adsorption affinity is extremely weak, reduce the influence of cell-phone inside electronic components, electronic equipment can be with external device stable connection while the protective housing dismantles conveniently under the condition of installation protective housing, and then improves user and uses experience.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element.

The above description is only for the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall cover the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A magnetic ring assembly is characterized by comprising a plurality of first magnetic pieces and a plurality of magnetic modules, wherein the first magnetic pieces and the magnetic modules are alternately arranged in sequence to form an annular structure, and each magnetic module comprises a second magnetic piece and a third magnetic piece which are arranged along the radial direction;

2. The magnetic ring assembly of claim 1, wherein the third magnetic member is located on a side of the second magnetic member away from a center of the ring structure;

3. The magnetic ring assembly according to claim 2, wherein the magnetic poles of the upper and lower surfaces of the third magnetic part are each the same as the magnetic pole of the upper surface of the first magnetic part, the magnetic poles of the upper and lower surfaces of the fourth magnetic part are each opposite to the magnetic pole of the upper surface of the first magnetic part, the magnetic pole of the upper surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the first magnetic part, and the magnetic pole of the lower surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the third magnetic part.

4. The magnetic ring assembly of claim 1, wherein the second magnetic element is located on a side of the third magnetic element away from a center of the ring structure;

5. The magnet ring assembly of claim 4, wherein the poles of the upper and lower surfaces of said third magnetic part are each of the same polarity as the poles of the upper surface of said first magnetic part, the poles of the upper and lower surfaces of said fourth magnetic part are each of the opposite polarity to the poles of the upper surface of said first magnetic part, the poles of the upper surface of said third magnetic part are of the same polarity as the poles of the upper surface of said first magnetic part, and the poles of the lower surface of said third magnetic part are of the opposite polarity to the poles of the upper surface of said third magnetic part.

6. A magnetic ring assembly is characterized by comprising a plurality of first magnetic pieces and a plurality of magnetic modules, wherein the first magnetic pieces and the magnetic modules are alternately arranged in sequence to form an annular structure, and each magnetic module comprises a second magnetic piece and a third magnetic piece which are arranged along the radial direction;

7. The magnetic ring assembly of claim 6, wherein the third magnetic member is located on a side of the second magnetic member away from a center of the ring structure;

8. The magnet ring assembly of claim 7, wherein the poles of the upper and lower surfaces of said third magnetic part are each of the same polarity as the poles of the upper surface of said first magnetic part, the poles of the upper and lower surfaces of said fourth magnetic part are each of the opposite polarity to the poles of the upper surface of said first magnetic part, the poles of the upper surface of said third magnetic part are of the opposite polarity to the poles of the upper surface of said first magnetic part, and the poles of the lower surface of said third magnetic part are of the opposite polarity to the poles of the upper surface of said third magnetic part.

9. The magnetic ring assembly of claim 6, wherein the second magnetic element is located on a side of the third magnetic element away from a center of the ring structure;

the second magnetic part comprises a third magnetic part and a fourth magnetic part which are distributed along the radial direction, the magnetic ring assembly comprises an inner ring area and an outer ring area, and the outer ring area is positioned on one side, away from the center of the annular structure, of the inner ring area; the first magnetic part and the third magnetic part are both located in the inner ring area, and the second magnetic part and the fourth magnetic part are both located in the outer ring area.

10. The magnetic ring assembly of claim 9, wherein the magnetic poles of the upper surface and the lower surface of the third magnetic part are the same as the magnetic pole of the upper surface of the first magnetic part, the magnetic poles of the upper surface and the lower surface of the fourth magnetic part are opposite to the magnetic pole of the upper surface of the first magnetic part, the magnetic pole of the upper surface of the third magnetic part is the same as the magnetic pole of the upper surface of the first magnetic part, and the magnetic pole of the lower surface of the third magnetic part is opposite to the magnetic pole of the upper surface of the third magnetic part.

11. The magnetic ring assembly as claimed in any one of claims 1 to 10, further comprising a reinforcement magnetic ring disposed on one side of the upper surface or the lower surface of the magnetic ring assembly, wherein the magnetic field direction of the reinforcement magnetic ring is radial or axial.

12. The magnetic ring assembly of claim 11, wherein the upper surface of the first magnetic piece, the upper surface of the second magnetic piece, and the upper surface of the third magnetic piece are flush; and/or the lower surfaces of the first magnetic part, the second magnetic part and the third magnetic part are arranged in a flush manner.

13. The magnetic ring assembly of claim 11, wherein the first magnetic member is in contact with or spaced from the magnetic module; and/or the second magnetic part is in contact connection with or spaced from the third magnetic part.

14. The magnetic ring assembly of claim 11, wherein the first magnetic member is formed with first slopes on both sides in a circumferential direction, the magnetic block is formed with second slopes on both sides in the circumferential direction, and the adjacent first slopes and the second slopes are parallel to each other.