CN218730197U

CN218730197U - Magnetic ring component

Info

Publication number: CN218730197U
Application number: CN202222794511.8U
Authority: CN
Inventors: 杨家春
Original assignee: Shenzhen Torras Technology Co Ltd
Current assignee: Shenzhen Torras Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-24
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a magnetic ring subassembly, including a plurality of magnetic unit, a plurality of magnetic unit arrange into the loop configuration, the magnetic unit is located the both ends of loop configuration circumference are equipped with first arch and first recess respectively, first recess runs through loop configuration is ascending relative both sides, adjacent two the magnetic unit passes through one of them on the magnetic unit first arch and another on the magnetic unit first recess cooperation is connected. The utility model discloses an annular structure can carry out magnetism with the magnetism alignment member of cell-phone and wireless charging base respectively through the magnetic field of the relative both sides of its axial and be connected, and then make the charging coil of cell-phone and wireless charging base's charging coil can coaxial alignment, improved wireless efficiency of charging, and the hollow part of annular structure can dodge wireless charging magnetic field simultaneously, avoids influencing wireless efficiency of charging.

Description

Magnetic ring component

Technical Field

The utility model relates to a magnetic force technical field, in particular to magnetic ring subassembly.

Background

More and more cell-phones have possessed the function that wireless charges on the market at present, the user only need when charging with the cell-phone put on wireless charging base can, saved the step of traditional wired charging in-process plug charging wire on the cell-phone, simple easy-to-use, therefore wireless function of charging is deeply received user's favor.

Patent CN212183576U discloses a mobile phone case comprising a body including a peripheral wall and a bottom wall disposed on an end face of one end of the peripheral wall; the cell-phone shell is still including setting up the piece of inhaling of magnetism in the diapire, the piece of inhaling includes a plurality of magnetism and inhales the piece, a plurality of magnetism inhale piece in proper order evenly arranged and be cyclic annular, can avoid the wireless position of charging of cell-phone, but in actual assembling process because the magnetic pole of adjacent magnetism piece of inhaling can attract or repel each other under magnetic field effect each other, lead to the magnetism piece of inhaling easily off tracking when the assembly or stagger with adjacent magnetism piece of inhaling, be difficult to form more standard annular structure, and then influence magnetism and inhale the holistic magnetic attraction of piece, make magnetism inhale the piece can not firmly inhale with wireless charging base magnetism and be connected, influence wireless efficiency of charging easily.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a magnetic ring assembly to solve the above problems.

The utility model adopts the following technical scheme:

an embodiment of the utility model provides a magnetic ring subassembly, including a plurality of magnetic unit, a plurality of magnetic unit arrange into annular structure, magnetic unit is located the both ends of annular structure circumference are equipped with first arch and first recess respectively, first recess runs through the ascending relative both sides of annular structure axial, adjacent two magnetic unit is through one of them magnetic unit is last first arch and another magnetic unit is last first recess cooperation is connected.

The two circumferential ends of the annular structure are respectively provided with a first inclined surface and a second inclined surface, the first inclined surfaces and the second inclined surfaces are opposite to the axial direction of the annular structure, and the first inclined surfaces of one of the adjacent magnetic units are in contact with the second inclined surfaces of the other magnetic unit.

The magnetic unit comprises a first magnetic part and a second magnetic part, wherein the first magnetic part and the second magnetic part are arranged along the radial direction of the annular structure, the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole of the first magnetic part on the bottom surface, the polarity of the magnetic pole of the second magnetic part on the top surface is opposite to that of the magnetic pole of the second magnetic part on the bottom surface, and the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole of the second magnetic part on the top surface.

The magnetic unit comprises a first magnetic part, a first nonmagnetic part and a second magnetic part, wherein the first magnetic part, the first nonmagnetic part and the second magnetic part are sequentially arranged along the radial direction of the annular structure, the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole of the first magnetic part on the bottom surface, the polarity of the magnetic pole of the second magnetic part on the top surface is opposite to that of the magnetic pole of the second magnetic part on the bottom surface, the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole of the second magnetic part on the top surface, and the first groove is positioned on the first nonmagnetic part;

first arch includes the edge third magnetism portion, second no magnetism portion and the fourth magnetism portion that annular structure's circumference set gradually, third magnetism portion is in the magnetic pole polarity of top surface is in rather than the magnetic pole polarity of bottom surface, fourth magnetism portion is in the magnetic pole polarity of top surface is rather than the magnetic pole polarity of bottom surface is opposite, third magnetism portion is in the magnetic pole polarity of top surface with fourth magnetism portion is in the magnetic pole polarity of top surface is opposite.

The magnetic unit comprises a first magnetic part and a second magnetic part, the first magnetic part is located at the two circumferential ends of the annular structure and is respectively provided with a first groove and a second groove, one end of the second magnetic part is opposite to the first magnetic part and protrudes to form the first protrusion, and the other end of the second magnetic part is arranged in the second groove and forms the second protrusion.

The second magnetic piece is of a circular columnar structure or a runway circular columnar structure.

The second magnetic part further comprises a main body part arranged between the first protrusion and the second protrusion.

The annular structure is provided with a top surface and a bottom surface which are oppositely arranged along the axial direction of the annular structure, the first magnetic part comprises a first magnetic part and a second magnetic part which are arranged along the radial direction of the annular structure, the magnetic pole polarity of the top surface is opposite to that of the bottom surface, the magnetic pole polarity of the first magnetic part is opposite to that of the top surface, the magnetic pole polarity of the top surface is opposite to that of the second magnetic part, the magnetic field direction of the main body part is the radial direction of the annular structure, and the magnetic field directions of the first bulge and the second bulge are the axial direction of the annular structure.

The annular structure is provided with a top surface and a bottom surface which are oppositely arranged along the axial direction of the annular structure, the first magnetic part comprises a first magnetic part and a second magnetic part which are radially arranged along the annular structure, the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole on the bottom surface, the polarity of the magnetic pole of the second magnetic part on the top surface is opposite to that of the magnetic pole on the bottom surface, the polarity of the magnetic pole of the first magnetic part on the top surface is opposite to that of the magnetic pole of the second magnetic part on the top surface, the polarity of the second magnetic part comprises a third magnetic part and a fourth magnetic part which are radially arranged along the annular structure, the third magnetic part is opposite to the first magnetic part, the polarities of the magnetic poles of the top surface and the bottom surface are respectively the same, and the polarities of the magnetic poles of the fourth magnetic part and the second magnetic part are opposite to each other, and the polarities of the magnetic poles of the top surface and the bottom surface are respectively the same.

The annular structure is provided with a top surface and a bottom surface which are oppositely arranged along the axial direction of the annular structure, the first magnetic part comprises a first magnetic part and a second magnetic part which are arranged along the radial direction of the annular structure, the magnetic pole polarity of the first magnetic part on the top surface is opposite to that of the first magnetic part on the bottom surface, the magnetic pole polarity of the second magnetic part on the top surface is opposite to that of the second magnetic part on the bottom surface, the magnetic pole polarity of the first magnetic part on the top surface is opposite to that of the second magnetic part on the top surface, and the magnetic field direction of the second magnetic part is the radial direction of the annular structure.

The magnetic ring is arranged on one side of the annular structure in the axial direction and comprises a plurality of third magnetic pieces which are circumferentially arranged along the annular structure, and the magnetic field direction of each third magnetic piece is the radial direction of the magnetic ring.

The embodiment of the utility model provides a magnetic ring subassembly includes a plurality of magnetic unit, a plurality of magnetic unit enclose into the annular structure, the both ends that magnetic unit is located annular structure circumference are equipped with first arch and first recess respectively, first recess runs through the ascending relative both sides of annular structure axial, so that process first recess, two adjacent magnetic unit are connected through the first recess cooperation on first arch on one of them magnetic unit and another magnetic unit, the problem of off tracking or dislocation takes place owing to adjacent magnetic unit's magnetic field effect when effectively having avoided magnetic unit in actual assembly, make a plurality of magnetic unit can arrange into standard annular structure, the magnetic attraction of magnetic ring subassembly has been improved, it is more firm when making magnetic ring subassembly and wireless charging base be connected, avoid influencing wireless charging's efficiency.

Drawings

Fig. 1 is a schematic structural view of a magnetic ring assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the magnetic ring assembly of FIG. 1 at another angle;

FIG. 3 is a schematic structural view of a magnetic unit in the magnetic ring assembly shown in FIG. 2;

fig. 4 is a schematic structural diagram of a magnetic unit in a magnetic ring assembly according to a second embodiment of the present invention;

fig. 5 is a schematic structural view of a magnetic ring assembly according to a third embodiment of the present invention;

FIG. 6 is a schematic view of a magnetic element of the magnetic ring assembly of FIG. 5;

fig. 7 is a schematic structural view of a magnet ring assembly according to a fourth embodiment of the present invention;

FIG. 8 is a schematic view of the magnetic elements of the magnetic ring assembly of FIG. 7;

fig. 9 is a schematic structural view of a magnet ring assembly according to a fifth embodiment of the present invention;

FIG. 10 is a partially exploded view of the magnet ring assembly shown in FIG. 9;

FIG. 11 is an exploded view of the magnet unit shown in FIG. 10;

fig. 12 is a schematic structural view of a magnet ring assembly according to a sixth embodiment of the present invention;

fig. 13 is a schematic structural view of a magnet ring assembly according to a seventh embodiment of the present invention;

figure 14 is a partially exploded view of the magnet ring assembly shown in figure 13;

fig. 15 is a schematic structural view of a magnet ring assembly according to an eighth embodiment of the present invention;

figure 16 is a partially exploded view of the magnet ring assembly shown in figure 15.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

Referring to fig. 1 to 3, an embodiment of the present invention provides a magnetic ring assembly, including a plurality of magnetic units 100, the plurality of magnetic units 100 are arranged into a ring structure 10, two circumferential ends of the magnetic units 100 located on the ring structure 10 are respectively provided with a first protrusion 200 and a first groove 300, the first groove 300 runs through two axial opposite sides of the ring structure 10, and two adjacent magnetic units 100 are connected with the first groove 300 on another magnetic unit 100 through the first protrusion 200 on one of the magnetic units 100.

Specifically, the ring structure 10 has opposite top and

bottom surfaces

11 and 12 in the axial direction. The magnetic unit 100 includes a first magnetic part 110 and a second magnetic part 120 sequentially arranged along the radial direction of the ring structure 10, the first groove 300 is located between the first magnetic part 110 and the second magnetic part 120, and the distance between the first magnetic part 110 and the center of the ring structure 10 is greater than the distance between the second magnetic part 120 and the center of the ring structure 10. The first magnetic part 110 and the second magnetic part 120 are magnetized along the axial direction of the ring structure 10. The magnetic polarity of the first magnetic part 110 on the top surface 11 is opposite to the magnetic polarity of the second magnetic part 120 on the bottom surface 12, and the magnetic polarity of the first magnetic part 110 on the top surface 11 is opposite to the magnetic polarity of the second magnetic part 120 on the top surface 11. The adjacent two first magnetic portions 110 have the same magnetic polarity on the top surface 11. Similarly, the first protrusion 200 includes a third magnetic portion 210 and a fourth magnetic portion 220 sequentially arranged along the radial direction of the ring structure 10, and the distance from the third magnetic portion 210 to the center of the ring structure 10 is greater than the distance from the fourth magnetic portion 220 to the center of the ring structure 10. The third magnetic part 210 and the fourth magnetic part 220 are magnetized along the axial direction of the ring structure 10. The polarity of the magnetic pole of the third magnetic part 210 on the top surface 11 is opposite to that of the magnetic pole of the fourth magnetic part 220 on the bottom surface 12, the polarity of the magnetic pole of the third magnetic part 210 on the top surface 11 is opposite to that of the magnetic pole of the fourth magnetic part 220 on the top surface 11, and the polarity of the magnetic pole of the third magnetic part 210 on the top surface 11 is opposite to that of the magnetic pole of the fourth magnetic part 220 on the top surface 11.

Illustratively, the magnetic pole of the first magnetic part 110 on one magnetic unit 100 on the bottom surface 11 is an N pole, the magnetic pole of the second magnetic part 120 on the bottom surface 11 is an S pole, the magnetic pole of the third magnetic part 210 on the bottom surface 11 is an N pole, the magnetic pole of the fourth magnetic part 220 on the bottom surface 11 is an S pole, and the magnetic pole of the first magnetic part 110 on the adjacent magnetic unit 100 on the bottom surface 11 is an N pole. The first protrusion 200 and the first groove 300 are both located in the middle of the magnetic unit 100 along the radial direction of the ring structure 10, and the first protrusion 200 on each magnetic unit 100 is embedded into the first groove 300 on the adjacent magnetic unit 100, so that the two adjacent magnetic units 100 can be accurately matched, and the problem that the magnetic attraction function of the magnetic ring assembly is influenced due to the fact that the two adjacent first magnetic parts 110 or the two second magnetic parts 120 are easily repelled to each other because of the same magnetic polarity is avoided.

The embodiment of the utility model provides a magnetic ring subassembly includes a plurality of magnetic unit 100, a plurality of magnetic unit 100 enclose into annular structure 10, the both ends that magnetic unit 100 is located annular structure 10 circumference are equipped with first arch 200 and first recess 300 respectively, first recess 300 runs through the 10 ascending relative both sides of annular structure axial, so that process first recess 300, two adjacent magnetic unit 100 are connected through the cooperation of first arch 200 on one of them magnetic unit 100 and the first recess 300 on another magnetic unit 100, magnetic unit 100 has effectively been avoided when actual assembly because the magnetic field effect of adjacent magnetic unit 100 takes place the problem of off tracking or dislocation, make a plurality of magnetic unit 100 can arrange into standard annular structure, the magnetic attraction of magnetic ring subassembly has been improved, make the magnetic ring subassembly more firm when being connected with the wireless base that charges, avoid influencing wireless charged efficiency.

Referring to fig. 4, in an embodiment, a maximum dimension of the first protrusion 200 in a radial direction of the ring structure 10 is larger than a dimension of the notch 310 of the first groove 300 in the radial direction of the ring structure 10.

Note that the notches 310 of the first groove 300 are arranged along the circumferential direction of the ring structure 10. For example, the first groove 300 is a C-shaped structure and penetrates through the magnetic units 100 in the axial direction of the ring structure 10, and since the maximum dimension of the first protrusion 200 in the radial direction of the ring structure 10 is greater than the dimension of the notch 310 of the first groove 300 in the radial direction of the ring structure 10, the first protrusion 200 cannot be removed from the notch 310 of the first groove 300 after being installed in the first groove 300 in the axial direction of the ring structure 10, so that the connection firmness of two adjacent magnetic units 100 is improved.

Referring to fig. 5 to 6, in an embodiment, the two ends of the magnetic unit 100 located in the circumferential direction of the ring structure 10 are further respectively provided with a first inclined surface 101 and a second inclined surface 102, the first inclined surface 101 and the second inclined surface 102 are both inclined with respect to the axial direction of the ring structure 10, and the first inclined surface 101 of one of the two adjacent magnetic units 100 is in contact with the second inclined surface 102 of the other one.

Specifically, the first inclined planes 101 include two and are arranged along the radial direction of the ring structure 10, the first protrusion 200 is located between the two first inclined planes 101, one ends of the two first inclined planes 101 close to the top surface 11 are inclined towards the same circumferential direction of the ring structure 10 relative to one ends of the two first inclined planes 101 close to the bottom surface 12, the second inclined planes 102 include two and are arranged along the radial direction of the ring structure 10, and the first groove 300 is located between the two second inclined planes 102. It should be noted that, generally, two adjacent magnetic units 100 are located the terminal surface of the ring structure 10 on circumference all perpendicular with top surface 11, and the nonmagnetic region that forms because of the clearance between two magnetic units 100 of assembly tolerance can make the magnetic line of force between two magnetic units 100 break off completely and mutual interference, influences the magnetic attraction of magnetic ring subassembly on the one hand, and on the other hand, magnetic ring subassembly can produce the pause and frustrate when carrying out magnetism with external parts such as wireless charging base and being connected and taking place relative rotation under the exogenic action and feel, influence user experience. In this embodiment, two adjacent magnetic units 100 are in contact fit with a second inclined surface 102 on another magnetic unit 100 through a first inclined surface 101 on one of the magnetic units 100, so that on one hand, the relative displacement of the two adjacent magnetic units 100 in the axial direction of the annular structure 10 can be reduced, and the influence on the overall assembly effect of the magnetic ring assembly is avoided, and on the other hand, the two adjacent magnetic units 100 are connected through inclined surfaces so that the magnetic lines of force of the two magnetic units are partially overlapped, so that the transition is more continuous and natural, the influence on the magnetic attraction of the magnetic ring assembly is avoided, and the magnetic field strength is more uniform and coherent. In other embodiments, the directions of the two first inclined surfaces 101 may be opposite, for example, one end of one of the first inclined surfaces 101 close to the top surface 11 is inclined towards the clockwise direction of the circumference of the ring structure 10 relative to one end close to the bottom surface 12, and one end of the other first inclined surface 101 close to the top surface 11 is inclined towards the counterclockwise direction of the circumference of the ring structure 10 relative to one end close to the bottom surface 12. Through the arrangement that the two first inclined surfaces 101 are inclined towards opposite directions, when the first inclined surfaces 101 are matched with the second inclined surfaces 102, relative movement of the two adjacent magnetic units 100 in the axial direction of the ring-shaped structure 10 can be better limited, and the stability during connection is improved.

Referring to fig. 7 to 8, in an embodiment, the magnetic ring assembly includes a plurality of magnetic units 100, the magnetic units 100 are arranged in a ring structure 10, two ends of the magnetic units 100 located at the circumferential direction of the ring structure 10 are respectively provided with a first protrusion 200 and a first groove 300, the first groove 300 penetrates through two opposite sides of the ring structure 10 in the axial direction, and two adjacent magnetic units 100 are connected with the first groove 300 of another magnetic unit 100 through the first protrusion 200 of one of the magnetic units 100. The ring structure 10 has a top surface 11 and a bottom surface 12 opposite to each other in an axial direction of the ring structure 10, the magnetic unit 100 includes a first magnetic part 110, a first non-magnetic part 115, and a second magnetic part 120 sequentially arranged in a radial direction of the ring structure 10, a magnetic pole polarity of the first magnetic part 110 on the top surface 11 is opposite to a magnetic pole polarity of the second magnetic part 120 on the bottom surface 12, a magnetic pole polarity of the first magnetic part 110 on the top surface 11 is opposite to a magnetic pole polarity of the second magnetic part 120 on the top surface 11, and the first recess 300 is located on the first non-magnetic part 115. The first protrusion 200 includes a third magnetic portion 210, a second non-magnetic portion 215, and a fourth magnetic portion 220 sequentially arranged along the circumferential direction of the ring structure 10, wherein the polarity of the magnetic pole of the third magnetic portion 210 on the top surface 11 is opposite to the polarity of the magnetic pole of the fourth magnetic portion 220 on the bottom surface 12, the polarity of the magnetic pole of the third magnetic portion 210 on the top surface 11 is opposite to the polarity of the magnetic pole of the fourth magnetic portion 220 on the top surface 11.

Specifically, the distance between the first magnetic part 110 and the center of the ring structure 10 is greater than the distance between the second magnetic part 120 and the center of the ring structure 10, and the distance between the third magnetic part 210 and the magnetic unit 100 is greater than the distance between the fourth magnetic part 220 and the magnetic unit 100. Illustratively, the magnetic pole polarity of the first magnetic part 110 on the top surface 11 is S-pole, and the magnetic pole polarity of the third magnetic part 210 on the top surface 11 is N-pole. When two adjacent magnetic units 100 are connected, the magnetic field at the connection position is increased by the third magnetic part 210 and the fourth magnetic part 220, and the magnetic attraction of the magnetic ring assembly is further improved.

Referring to fig. 9 to 12, in an embodiment, the magnetic unit 100 includes a first magnetic member 130 and a second magnetic member 140, the first magnetic member 130 is disposed at two circumferential ends of the ring structure 10 and is respectively provided with a first groove 300 and a second groove 400, one end of the second magnetic member 140 protrudes from the first magnetic member 130 to form a first protrusion 200, and the other end is disposed in the second groove 400 to form a second protrusion 500.

Specifically, the first magnetic member 130 includes a first magnetic part 110 and a second magnetic part 120 sequentially arranged along the radial direction of the ring structure 10, the distance between the first magnetic part 110 and the center of the ring structure 10 is greater than the distance between the second magnetic part 120 and the center of the ring structure 10, the first groove 300 and the second groove 400 are respectively located between the first magnetic part 110 and the second magnetic part 120, the polarity of the magnetic pole of the first magnetic part 110 on the top surface 11 is opposite to the polarity of the magnetic pole of the second magnetic part 120 on the bottom surface 12, the polarity of the magnetic pole of the first magnetic part 110 on the top surface 11 is opposite to the polarity of the magnetic pole of the second magnetic part 120 on the top surface 11, and the magnetic field direction of the second magnetic member 140 is the radial direction of the ring structure 10. Because first magnetism spare 130 magnetizes along the axial of loop configuration 10, second magnetism spare 140 magnetizes along the radial of loop configuration 10, and second magnetism spare 140 inlays to be located between two adjacent first magnetism spares 130 and forms halbach array with two first magnetism spares 130 respectively, has increased the magnetic attraction of junction on the one hand, and on the other hand has avoided two adjacent first magnetism spares 130 because the polarity of link is the same easily repulses each other, causes the problem of assembly dislocation. In other embodiments, the first magnetic member 130 may be magnetized along a radial direction of the ring structure 10, and the second magnetic member 140 may be magnetized along an axial direction of the ring structure 10.

Further, the second magnetic member 140 may be divided into two parts along the circumferential direction of the ring structure 10, wherein one part is disposed in the first groove 300 between two adjacent first magnetic members 130, and the other part is disposed in the second groove 400 between the two first magnetic members 130. By dividing the second magnetic member 140 into two parts, the risk of breakage under the action of the magnetic field can be reduced.

Further, the magnetic ring assembly further includes an iron ring 20 disposed on an axially upper side of the ring structure 10. Hoop 20 and the coaxial setting of annular structure 10, the diamagnetism through hoop 20 can effectively increase the magnetic attraction of annular structure 10 opposite side, when the magnetic ring subassembly was installed on the cell-phone shell, the less one side of magnetic ring subassembly magnetic attraction and cell-phone shell fixed connection, the opposite side be used for with outside accessory for example wireless charging base inhale magnetism and connect, has effectively increased the fastness of inhaling the connection.

Referring to fig. 9 to 12, in some possible embodiments, the second magnetic member 140 has a circular column structure or a racetrack circular column structure, so as to avoid hurting hands during assembly.

Referring to fig. 13 and 14, in other possible embodiments, the second magnetic member 140 further includes a main body portion 141 disposed between the first protrusion 200 and the second protrusion 500.

Optionally, the main body 141 is a trapezoid structure, and the top surface and the bottom surface of the main body 141 are disposed along the axial direction of the ring structure 10, so that the second magnetic member 140 is assembled with the first magnetic member 130 along the axial direction of the ring structure 10 from the end of the bottom surface with a smaller area of the main body 141. In this embodiment, the annular structure 10 has a top surface 11 and a bottom surface 12 disposed opposite to each other along an axial direction of the annular structure 10, the first magnetic member 130 includes a first magnetic part 110 and a second magnetic part 120 disposed along a radial direction of the annular structure 10, a magnetic pole polarity of the first magnetic part 110 on the top surface 11 is opposite to a magnetic pole polarity of the first magnetic part on the bottom surface 12, a magnetic pole polarity of the second magnetic part 120 on the top surface 11 is opposite to a magnetic pole polarity of the second magnetic part 120 on the bottom surface 12, a magnetic field direction of the main body part 141 is the radial direction of the annular structure 10, and magnetic field directions of the first protrusion 200 and the second protrusion 500 are both axial directions of the annular structure 10. Specifically, the magnetic poles of the main body portion 141 on the two opposite sides of the annular structure 10 in the radial direction are opposite, the magnetic poles of the first protrusions 200 on the two opposite sides of the annular structure 10 in the axial direction are opposite, and the magnetic poles of the second protrusions 500 on the two opposite sides of the annular structure 10 in the axial direction are opposite. More specifically, one side of the ring structure 10 in the axial direction is provided with a magnetic ring 30, the magnetic ring 30 includes a plurality of third magnetic members 31 arranged along the circumferential direction thereof, and the magnetic field direction of the third magnetic members 31 is the radial direction of the magnetic ring 30. The magnetic ring 30 is provided to further enhance the magnetic attraction on the other side of the ring structure 10.

Referring to fig. 15 to 16, the difference between the above embodiments is that the annular structure 10 has a top surface 11 and a bottom surface 12 disposed opposite to each other along an axial direction of the annular structure 10, the first magnetic member 130 includes a first magnetic part 110 and a second magnetic part 120 disposed along a radial direction of the annular structure 10, a magnetic pole polarity of the first magnetic part 110 on the top surface 11 is opposite to a magnetic pole polarity of the first magnetic part 120 on the bottom surface 12, a magnetic pole polarity of the second magnetic part 120 on the top surface 11 is opposite to a magnetic pole polarity of the second magnetic part 120 on the top surface 11, the second magnetic member 140 includes a third magnetic part 210 and a fourth magnetic part 220 disposed along the radial direction of the annular structure 10, the third magnetic part 210 is opposite to the first magnetic part 110 and the magnetic pole polarities of the first magnetic part on the top surface 11 and the bottom surface 12 are respectively the same, the fourth magnetic part 220 is opposite to the second magnetic part 120 and the magnetic poles of the first magnetic part on the top surface 11 and the bottom surface 12 are respectively the same. In other embodiments, the first magnetic member 130 and the second magnetic member 140 may be magnetized along the radial direction of the ring structure 10. The arrangement of the first protrusion 200 and the second protrusion 500 increases the magnetic field strength at the connection between the adjacent first magnetic member 130 and the second magnetic member 140, thereby increasing the magnetic attraction force of the magnetic ring assembly.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The magnetic ring assembly is characterized by comprising a plurality of magnetic units, wherein the magnetic units are arranged into an annular structure, the magnetic units are located at two circumferential ends of the annular structure and are respectively provided with a first protrusion and a first groove, the first grooves penetrate through two opposite axial sides of the annular structure, and the adjacent magnetic units are connected through one of the first protrusions on the magnetic units and the first grooves on the magnetic units in a matched mode.

2. The magnetic ring assembly as claimed in claim 1, wherein the magnetic units are further provided with a first inclined surface and a second inclined surface at two circumferential ends of the annular structure, the first inclined surface and the second inclined surface are inclined with respect to the axial direction of the annular structure, and the first inclined surface of one of the two adjacent magnetic units is in contact with the second inclined surface of the other of the two adjacent magnetic units.

3. The magnet ring assembly according to claim 1 or 2, wherein the annular structure has a top surface and a bottom surface which are oppositely arranged in an axial direction thereof, the magnet unit includes a first magnetic part and a second magnetic part which are arranged in a radial direction of the annular structure, a magnetic pole polarity of the first magnetic part at the top surface is opposite to a magnetic pole polarity of the first magnetic part at the bottom surface, a magnetic pole polarity of the second magnetic part at the top surface is opposite to a magnetic pole polarity of the second magnetic part at the bottom surface, and a magnetic pole polarity of the first magnetic part at the top surface is opposite to a magnetic pole polarity of the second magnetic part at the top surface.

4. The magnetic ring assembly according to claim 1, wherein the annular structure has a top surface and a bottom surface which are oppositely arranged in an axial direction thereof, the magnetic unit includes a first magnetic portion, a first nonmagnetic portion and a second magnetic portion which are sequentially arranged in a radial direction of the annular structure, a magnetic pole polarity of the first magnetic portion at the top surface is opposite to a magnetic pole polarity of the first magnetic portion at the bottom surface, a magnetic pole polarity of the second magnetic portion at the top surface is opposite to a magnetic pole polarity of the second magnetic portion at the bottom surface, a magnetic pole polarity of the first magnetic portion at the top surface is opposite to a magnetic pole polarity of the second magnetic portion at the top surface, and the first groove is located on the first nonmagnetic portion;

5. The magnetic ring assembly of claim 1, wherein the magnetic unit comprises a first magnetic member and a second magnetic member, the first magnetic member is provided with the first groove and the second groove at two circumferential ends of the annular structure, one end of the second magnetic member protrudes relative to the first magnetic member to form the first protrusion, and the other end of the second magnetic member is provided in the second groove to form the second protrusion.

6. The magnet ring assembly of claim 5, wherein said second magnetic member is a circular cylindrical structure or a racetrack circular cylindrical structure.

7. The magnet ring assembly of claim 5, wherein said second magnetic member further comprises a body portion disposed between said first projection and said second projection.

8. The magnet ring assembly of claim 7, wherein said ring-shaped structure has a top surface and a bottom surface opposite to each other in an axial direction thereof, said first magnetic member includes a first magnetic portion and a second magnetic portion arranged in a radial direction of said ring-shaped structure, a magnetic pole polarity of said first magnetic portion at said top surface is opposite to a magnetic pole polarity of said first magnetic portion at said bottom surface, a magnetic pole polarity of said second magnetic portion at said top surface is opposite to a magnetic pole polarity of said second magnetic portion at said bottom surface, a magnetic pole polarity of said first magnetic portion at said top surface is opposite to a magnetic pole polarity of said second magnetic portion at said top surface, a magnetic field direction of said main body portion is in the radial direction of said ring-shaped structure, and a magnetic field direction of said first protrusion and said second protrusion is in the axial direction of said ring-shaped structure.

9. The magnet ring assembly of claim 7, wherein said ring-like structure has top and bottom surfaces disposed opposite to each other in an axial direction thereof, said first magnetic member includes first and second magnetic portions disposed radially of said ring-like structure, a magnetic pole polarity of said first magnetic portion at said top surface is opposite to a magnetic pole polarity of said first magnetic portion at said bottom surface, a magnetic pole polarity of said second magnetic portion at said top surface is opposite to a magnetic pole polarity of said second magnetic portion at said bottom surface, a magnetic pole polarity of said first magnetic portion at said top surface is opposite to a magnetic pole polarity of said second magnetic portion at said top surface, said second magnetic member includes third and fourth magnetic portions disposed radially of said ring-like structure, said third magnetic portion is opposite to said first magnetic portion and magnetic pole polarities of said first magnetic portion at said top surface and said bottom surface are respectively the same, and said fourth magnetic portion is opposite to said second magnetic portion and magnetic poles of said second magnetic portion at said top surface and said bottom surface are respectively the same.

10. A magnet ring assembly as claimed in claim 5 or 6, wherein said annular structure has a top surface and a bottom surface disposed axially opposite each other, said first magnetic member comprises a first magnetic portion and a second magnetic portion disposed radially of said annular structure, said first magnetic portion having a magnetic polarity at said top surface opposite to a magnetic polarity at said bottom surface, said second magnetic portion having a magnetic polarity at said top surface opposite to a magnetic polarity at said bottom surface, said first magnetic portion having a magnetic polarity at said top surface opposite to a magnetic polarity at said top surface of said second magnetic portion, said second magnetic member having a magnetic field oriented radially of said annular structure.

11. A magnet ring assembly as claimed in any of claims 5 to 9, in which a magnetic ring is provided on one side of the annular structure in the axial direction, the magnetic ring comprising a plurality of third magnetic members arranged circumferentially thereof, the magnetic field direction of the third magnetic members being radial to the magnetic ring.