WO2023208253A1 - 一种磁性组件及磁环结构 - Google Patents

一种磁性组件及磁环结构 Download PDF

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Publication number
WO2023208253A1
WO2023208253A1 PCT/CN2023/098523 CN2023098523W WO2023208253A1 WO 2023208253 A1 WO2023208253 A1 WO 2023208253A1 CN 2023098523 W CN2023098523 W CN 2023098523W WO 2023208253 A1 WO2023208253 A1 WO 2023208253A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
top surface
ring structure
component
poles
Prior art date
Application number
PCT/CN2023/098523
Other languages
English (en)
French (fr)
Inventor
张泽武
汪东林
杨家春
Original Assignee
深圳市蓝禾技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202221014358.6U external-priority patent/CN217590871U/zh
Priority claimed from CN202210964573.0A external-priority patent/CN115036094B/zh
Priority claimed from CN202222384665.XU external-priority patent/CN218274138U/zh
Priority claimed from CN202222449680.8U external-priority patent/CN218482044U/zh
Application filed by 深圳市蓝禾技术有限公司 filed Critical 深圳市蓝禾技术有限公司
Publication of WO2023208253A1 publication Critical patent/WO2023208253A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

Definitions

  • the utility model relates to the field of magnet application technology, and in particular to a magnetic component and a magnetic ring structure.
  • magnetic mobile phone protective cases, magnetic holders and magnetic wireless charging equipment are all used in magnets.
  • the magnetic poles on both sides of the magnet are attracted to the mobile phone protective case and magnetic mobile phone holder.
  • these existing magnetic structures still have some problems.
  • the magnet is fixed on the mobile phone case.
  • a larger magnetic force is needed to ensure stable adsorption or enhance the charging effect.
  • magnets do not need to provide a large magnetic force to achieve fixation. On the contrary, excessive magnetic force will have an adverse effect on the internal electronic components of the mobile phone.
  • embodiments of the present application provide a magnetic component and a magnetic ring structure, which have the characteristics of different magnetic attraction strengths on both sides.
  • the embodiment of the present application is a magnetic assembly, including a first magnetic component and a second magnetic component.
  • the first magnetic component includes a first magnetic part and a middle part sequentially arranged along the width direction of the first magnetic component. and a second magnetic part.
  • the middle part includes a first non-magnetic area, an accommodation area and a second non-magnetic area arranged sequentially along the length direction of the first magnetic part.
  • the second magnetic part is provided on the accommodation area.
  • embodiments of the present application also provide a magnetic ring structure, including a plurality of the above-mentioned magnetic components, and the plurality of magnetic components are arranged in a ring structure along the length direction of the magnetic component.
  • the magnetic components and magnetic ring components provided by this application can achieve one or more of the following beneficial effects: multiple magnetic components are spaced apart to form a circular magnetic ring structure, and each magnetic component includes a first magnetic component and a first magnetic component located on the first magnetic component.
  • the second magnetic piece in the middle of the magnetic piece, the first magnetic piece is magnetized along the axial direction, and the second magnetic piece is magnetized along the radial direction, forming a Halbach array, so that the magnetic field strengths on the two surfaces of the first magnetic component are different, and practical applications
  • the side with a weaker magnetic field can be closer to the mobile phone to reduce the negative impact on the mobile phone.
  • the side with a stronger magnetic field can be closer to the stand or wireless charger to enhance stability.
  • Figure 1 is a schematic diagram of the distribution of magnetic field lines of a magnetic attraction structure in the prior art.
  • Figure 2 is a schematic diagram of a magnetic assembly provided in Embodiment 1.
  • FIG. 3 is an exploded schematic view of the magnetic assembly shown in FIG. 2 .
  • FIG. 4 is a cross-sectional view of the magnetic assembly shown in FIG. 2 along the direction A-A.
  • FIG. 5 is a schematic diagram of magnetic field line distribution of the magnetic assembly shown in FIG. 2 .
  • FIG. 6 is a schematic diagram of a magnetic ring structure provided in Embodiment 1.
  • FIG. 7 is a schematic diagram of another magnetic ring structure provided in Embodiment 1.
  • FIG. 8 is a schematic diagram of yet another magnetic ring structure provided in Embodiment 1.
  • Figure 9 is a flow chart of a manufacturing method of a magnetic ring structure provided in Embodiment 1.
  • Figure 10 is a schematic diagram of a magnetic assembly provided in Embodiment 2.
  • Figure 11 is a schematic diagram of another magnetic assembly provided in Embodiment 2.
  • Figure 12 is a schematic diagram of a magnetic assembly provided in Embodiment 3.
  • FIG. 13 is an exploded schematic view of the magnetic assembly shown in FIG. 12 .
  • FIG. 14 is a schematic diagram of another side of the magnetic assembly shown in FIG. 12 .
  • Figure 15 is a schematic diagram of a magnetic ring structure provided in Embodiment 3.
  • Figure 16 is a schematic diagram of another magnetic ring structure provided in Embodiment 3.
  • Figure 17 is a schematic diagram of the strong magnetic component in the magnetic ring structure shown in Figure 16.
  • Figure 18 is a schematic diagram of the application scenario of the magnetic ring structure provided in the fourth embodiment.
  • this embodiment provides a magnetic component 10 .
  • the magnetic component 10 includes a first magnetic component 11 and a second magnetic component 12 .
  • the first magnetic component 11 includes components along the width direction of the first magnetic component 11 .
  • the first magnetic part 110, the middle part 111 and the second magnetic part 112 are arranged in sequence.
  • the middle part 111 includes a first non-magnetic area 111a, an accommodation area 111b and a second non-magnetic area arranged sequentially along the length direction of the first magnetic member 11. Magnetic area 111c, the second magnetic component 12 is provided in the accommodation area 111b.
  • the magnetic component 10 has a top surface 13 and a bottom surface 14 that are oppositely arranged along its thickness direction.
  • the magnetic poles of the first magnetic part 110 on the top surface 13 and the magnetic poles on the bottom surface 14 have opposite polarity.
  • the magnetic pole on the top surface 13 of one magnetic part 110 is N pole, and the magnetic pole on the bottom surface 14 is S pole; the magnetic pole of the second magnetic part 112 on the top surface 13 is opposite to the magnetic pole on the bottom surface 14; the top surface 13 of the second magnetic part 112
  • the magnetic pole of the bottom surface 14 is S pole, and the magnetic pole of the bottom surface 14 is N pole; the magnetic pole of the first magnetic part 110 on the top surface 13 is opposite to the magnetic pole of the second magnetic part 112 on the top surface 13, and the second magnetic component 12 is close to the first magnetic
  • the magnetic pole on one side of the second magnetic part 12 has opposite polarity to the magnetic pole on the side close to the second magnetic part 12.
  • the magnetic pole on the side close to the first magnetic part 110 of the second magnetic part 12 is N pole.
  • the second magnetic part 12 is close to the second magnetic part 112.
  • the magnetic pole on the side is S pole.
  • the magnetic polarity orientation (or magnetization method) of the first magnetic part 110 and the second magnetic part 112 is along the direction from the top surface 13 to the bottom surface 14 of the magnetic component 10 (ie, the thickness direction of the magnetic component 10), and they are located
  • the magnetic poles on the same surface (co-located on the top surface 13 or co-located on the bottom surface 14) are opposite, that is, the magnetic pole orientations (or magnetization directions) of the two are opposite.
  • the magnetic polarity orientation (or magnetization method) of the second magnetic component 12 is the width direction of the magnetic component 10.
  • the first magnetic part 110, the second magnetic component 12 and the third magnetic part 112 are jointly arranged to form a Halbeck array, so that the magnetic field strengths of the top surface 13 and the bottom surface 14 of the magnetic component 10 are different.
  • Figure 5 it can be seen from the arrangement of magnetic induction lines that the magnetic field intensity of the top surface 13 is significantly greater than the magnetic field intensity of the bottom surface 14 (magnetic induction). The more and denser the wires, the stronger the magnetic field).
  • the magnetic component 10 is applied to electronic equipment accessories, one side of the bottom surface 14 is connected to a mobile phone, and one side of the top surface 13 is connected to a mobile phone accessory such as a stand or a wireless charger.
  • the ratio of the width of the second magnetic component 12 to the width of the first magnetic component 11 is t, 0.2 ⁇ t ⁇ 0.4.
  • the width of the first magnetic component 11 and the width of the second magnetic component 12 both refer to their size in the width direction of the magnetic assembly.
  • t is 0.25.
  • the distance between the first magnetic part 110 and the second magnetic part 112 is small, which increases the intensity of the magnetic field formed between them and avoids the need to accommodate the second magnetic part 120. Due to the excessive width of the middle portion 111, the first magnetic component 11 is prone to breakage when subjected to external force.
  • the length of the first magnetic member 11 is m
  • the length of the first non-magnetic area 111a is a, 0.1m ⁇ a ⁇ 0.3m
  • the length of the second non-magnetic area 111c is b, 0.1m ⁇ b ⁇ 0.3m
  • the first magnetic component 11 includes a first end and a second end disposed along the length direction of the magnetic component 10
  • the second magnetic component 12 includes a third end and a fourth end disposed along the length direction of the magnetic component 10 . The third end Close to the first end, and the fourth end close to the second end.
  • the distance from the midpoint of the line segment where the end surface of the first end intersects the top surface 13 to the midpoint of the line segment where the end surface of the second end intersects the top surface 13 is m.
  • the distance from the midpoint of the line segment to the third end is a, and the distance from the midpoint of the line segment where the end surface of the second end intersects the top surface 13 to the fourth end is b.
  • the end of the first magnetic component 11 is provided with rounded corners and/or the end of the second magnetic component 12 is provided with rounded corners.
  • the provision of rounded corners can reduce the risk of cracking of the four corners of the first magnetic component 11 and the two ends of the second magnetic component 12 due to stress concentration.
  • the accommodation area 111b is provided with a groove or a through hole
  • the second magnetic component 12 is disposed in the groove or the through hole
  • the surface of the second magnetic component 12 is flush with the surface of the first magnetic component 11 .
  • the groove or through hole is provided at the center of the first magnetic component 11 so that the second magnetic component 12 is located at the center of the first magnetic component 11 .
  • the magnetic component 10 may have a fan-ring columnar structure, and the shape of the groove or through hole may be a fan-ring columnar shape.
  • this embodiment also provides a magnetic ring structure.
  • the magnetic ring structure includes a plurality of the above-mentioned magnetic components 10 , and the plurality of magnetic components 10 are arranged in a ring-shaped structure along its length direction.
  • the plurality of magnetic components 10 are, for example, of the same shape and size, which facilitates mass production and replacement.
  • Each magnetic component 10 is, for example, a sector-ring columnar structure, arranged at intervals to form a circular magnetic ring structure, which can better match the existing ring shape.
  • Magnetic base multiple magnetic components 10 are arranged at intervals, for example, a demagnetization gap 15 is formed between any two adjacent magnetic components 10, for example, the demagnetization gap is not less than 0.3mm, that is, any two adjacent magnetic components 10 The minimum distance between them is not less than 0.3mm. It can avoid warping, deformation or damage of the magnetic structure caused by magnetic attraction during subsequent assembly, which can improve assembly efficiency and reduce assembly difficulty.
  • first magnetic parts 110 together form a first annular magnetic area
  • the magnetic poles of the first magnetic parts 110 located on the top surface 11 of the magnetic ring structure have the same polarity
  • the second magnetic parts 112 together form a second annular area.
  • the magnetic poles of each second magnetic part 112 located on the top surface of the magnetic ring structure have the same polarity to ensure the uniformity of the magnetic field lines of each first magnetic part 11 in the axial direction of the magnetic ring structure and avoid adjacent The first magnetic parts 11 interfere with each other.
  • the number of magnetic components 10 is 6 to 20. Since the magnetic ring structure is annular, when the number of magnetic components is too small, the arc length of a single magnetic component 10 is relatively large, which increases the risk of breakage and the difficulty of manufacturing. When the number of magnetic components 10 is too large, the manufacturing cost will be increased.
  • the top surface of the magnetic ring structure forms a strong magnetic surface
  • the bottom surface of the magnetic ring structure forms a weak magnetic surface.
  • the ratio of the magnetic force on the top surface of the magnetic ring structure to the magnetic force on the bottom surface of the magnetic ring structure is n, 2.2 ⁇ n ⁇ 3.8.
  • the magnetic force on the top surface is between 22N and 26N
  • the magnetic force on the bottom surface is between 6N and 12N. This ensures that the top side of the magnetic ring structure has sufficient magnetic force to attract accessories outside the mobile phone. connection, and avoids excessive magnetic force affecting the normal operation of the internal components of the mobile phone when the bottom side of the magnetic ring structure is directly opposite the mobile phone.
  • the bottom side When in use, the bottom side can be magnetically combined with the mobile phone, and the top side can be combined with magnetic accessories such as a magnetic holder.
  • the magnetic ring structure provided in this embodiment can not only reduce the magnetic flux on one side of the mobile phone to reduce damage to the mobile phone, but also enhance the magnetic flux on one side of the bracket to enhance the suction force and stability of the bracket.
  • the magnetic ring structure also includes a plurality of iron sheets 20 , and the plurality of iron sheets 20 and the plurality of magnetic components 10 are collectively surrounded to form a ring structure.
  • the number of magnetic components 10 can be reduced, effectively reducing the manufacturing cost.
  • the magnetic ring structure also includes a first accommodation shell 30.
  • the first accommodation shell 30 is provided with an annular first accommodation cavity. When multiple magnetic components 10 are disposed When inside the first accommodation cavity, one side of the magnetic component 10 is in contact with the bottom wall of the first accommodation cavity, which can better isolate the magnetic force and reduce the impact on the mobile phone.
  • the first accommodation shell 30 plays a limiting and guiding role in the arrangement of the plurality of magnetic components 10, and its material can be made of hardware or plastic, which is not limited in this embodiment.
  • the magnetic ring structure can be installed in the first accommodation case 30 for fixation, and the fixed magnetic ring structure can be directly assembled into the housing of a mobile phone protective case, a magnetic holder, a wireless charger, etc. No additional assembly is required, which helps simplify the production process.
  • the magnetic ring structure provided in this embodiment also includes a positioning magnetic component 40.
  • the positioning magnetic component 40 is, for example, disposed adjacent to the annular magnetic ring structure and located outside the ring of the magnetic ring structure.
  • the positioning magnetic component 40 can be composed of two or more units, with a gap maintained between the units.
  • a second accommodation shell 50 can also be further provided.
  • the second accommodation shell 50 forms a second accommodation cavity.
  • the magnetic assembly 40 is embedded in the second accommodation cavity, and the arrangement of each unit in the positioning magnetic assembly 40 can be limited and guided through the second accommodation cavity.
  • the positioning magnetic component 40 is, for example, a long strip structure as shown in FIG. 8 .
  • it can be designed with reference to the shape of a commercially available Magsafe magnetic accessory, and plays a guiding and positioning role in adsorbing the mobile phone.
  • a plurality of partitions may be provided in the first accommodation cavity of the first accommodation shell 30.
  • the plurality of partitions may be arranged along the radial direction of the annular first accommodation shell 30, and the plurality of partitions may A first sub-accommodating cavity is formed between any two adjacent partitions, and each magnetic component 10 is correspondingly embedded in a first sub-accommodating cavity.
  • Each magnetic component 10 can be better limited and the gaps between multiple magnetic components 10 can be maintained.
  • the weaker magnetic side of each magnetic component is attached to the bottom wall of the first accommodation cavity to achieve better magnetic isolation. Effect.
  • an embodiment of the present invention also provides a method for manufacturing a magnetic ring structure.
  • the method includes the following steps:
  • raw materials whose main components are rare earth elements neodymium, iron, and boron are first put into a machine, stirred and crushed to form granular raw materials, and then the smelted granular raw materials are put into a jet pulverizer for crushing to obtain magnetic powder, and then The interaction between magnetic powder and external magnetic field is used to arrange the easy magnetization direction of the magnetic powder so that it is consistent with the final magnetization direction.
  • the blank is shaped at the same time, and finally the blank is put into a smelting furnace with a temperature above 1000 degrees Celsius for high-temperature sintering and hardening.
  • the rare earth element neodymium can be partially replaced by other rare earth metals such as dysprosium and praseodymium
  • iron can also be partially replaced by other metals such as cobalt and aluminum.
  • the blank is first cut into thin slices through wire cutting or laser cutting, and then the thin slices are cut and processed to obtain the first part to be magnetized and the second part to be magnetized.
  • the two ends of the installation groove penetrate the top surface and the bottom surface respectively.
  • S300 Magnetize the first component to be magnetized to obtain the first magnetic component 11, and magnetize the second component to be magnetized to obtain the second magnetic component 12.
  • the magnetizer is first adjusted to a suitable current and voltage, and then the first and second parts to be magnetized are magnetized respectively to obtain the first magnetic part 11 and the second magnetic part 12.
  • S500 Arrange and assemble multiple magnetic components 10 in a ring shape to obtain a magnetic ring structure.
  • a single second magnetic component 12 and a single first magnetic component 11 are first assembled to obtain the magnetic component 10, and then multiple magnetic components 10 are arranged in an annular shape and assembled into the first accommodation cavity of the first accommodation shell 30.
  • multiple magnetic components 10 jointly form a Halbeck array.
  • step S300 specifically includes:
  • the second direction is opposite to the third direction and perpendicular to the first direction respectively.
  • first direction is the same as the radial direction of the magnetic component
  • second direction and the third direction is the same as the axial direction of the magnetic component
  • the manufacturing method of the magnetic ring structure further includes step S220, which is between step S200 and step S300:
  • S220 Put the first magnetic part 11 and the second magnetic part 12 into the grinder for grinding and polishing, and then put them into the electroplating equipment for immersion in electroplating.
  • the surfaces of the first magnetic component 11 and the second magnetic component 12 become smoother and corrosion-resistant, making it less likely to scratch the mobile phone when in contact with it.
  • the difference of this embodiment is that the second magnetic component 12 includes a third magnetic part 121 and a fourth magnetic part arranged along the thickness direction of the first magnetic component 11 122.
  • the magnetic poles on the side of the third magnetic part 121 close to the first magnetic part 110 and the magnetic poles on the side close to the second magnetic part 112 have opposite polarities; the magnetic poles on the side of the fourth magnetic part 122 close to the first magnetic part 110 are in opposite polarity.
  • the magnetic poles on the side of the two magnetic parts 112 are opposite in polarity; the magnetic poles on the side of the fourth magnetic part 122 close to the first magnetic part 110 are opposite to the magnetic poles on the side of the third magnetic part 121 close to the first magnetic part 110 .
  • the magnetic pole on the top surface 13 of the first magnetic part 110 is an N pole, and the magnetic pole on the bottom surface 14 is an S pole; the magnetic pole on the top surface 13 of the second magnetic part 112 is an S pole, and the magnetic pole on the bottom surface 14 is an N pole.
  • the magnetic pole of the third magnetic part 121 close to the first magnetic part 110 is S pole, the magnetic pole close to the second magnetic part 112 is N pole, and the fourth magnetic part 122 is close to the first magnetic part 110 .
  • the magnetic pole is N pole, and the magnetic pole on the side close to the second magnetic part 112 is S pole.
  • Such an arrangement of magnetic poles can not only enhance the magnetic field intensity on the top surface of the magnetic component 10 and weaken the magnetic field intensity on the bottom surface, but also cause the second magnetic component 12 and the first magnetic component 11 to attract each other, making it easier to connect the first magnetic component 11 and the second magnetic component.
  • Assembly of parts 12 The top and bottom surfaces described in this article are defined in terms of the viewing angles shown in the view in Figure 10. It should be noted that the dotted lines added on the surface of the magnetic assembly 10 in the drawings of this application are only used to distinguish each magnetic part.
  • the magnetic pole on the top surface 13 of the first magnetic part 110 is N pole, and the magnetic pole on the bottom surface 14 is S pole;
  • the magnetic pole on the top surface 13 of the second magnetic part 112 is S pole, and the magnetic pole on the bottom surface 14 is N pole;
  • the magnetic pole of the three magnetic parts 121 close to the first magnetic part 110 is N pole, the magnetic pole close to the second magnetic part 112 is S pole, and the magnetic pole of the fourth magnetic part 122 close to the first magnetic part 110 is S pole.
  • the magnetic pole on the side close to the second magnetic part 112 is N pole.
  • Such an arrangement of magnetic poles can not only enhance the magnetic field intensity on the top surface of the magnetic component 10 and weaken the magnetic field intensity on the bottom surface, but also cause the second magnetic component 12 and the first magnetic component 11 to attract each other, making it easier to connect the first magnetic component 11 and the second magnetic component.
  • Assembly of parts 12 The top and bottom surfaces described in this article are defined in terms of the viewing angles shown in the view in Figure 11. It should be noted that the dotted lines added on the surface of the magnetic component 11 in the drawings of this application are only used to distinguish each magnetic part.
  • the magnetic assembly 10 provided in this embodiment is based on the first and second embodiments and adds a third magnetic component 16.
  • the third magnetic component 16 is located in the length direction of the first magnetic component 11. side.
  • the third magnetic component 16 includes a fifth magnetic part 161 and a sixth magnetic part 162 arranged along the width direction of the first magnetic component.
  • the fifth magnetic part 161 has a magnetic pole on the top surface and a magnetic pole on the bottom surface as well as the first magnetic part 161 and the sixth magnetic part 162 .
  • the magnetic poles on the top surface of the first magnetic part 110 are the same, the magnetic poles on the top surface of the sixth magnetic part 162 are the same as the magnetic poles on the bottom surface, and the magnetic poles on the top surface of the second magnetic part 112 are all the same.
  • the magnetic poles on the top and bottom surfaces of the fifth magnetic part 161 are both N poles, and the magnetic poles on the top surface of the first magnetic part 110 are also N poles. is an N pole; the magnetic poles on the top and bottom surfaces of the sixth magnetic part 162 are both S poles, and the magnetic pole on the top surface of the second magnetic part 112 is also an S pole.
  • the left and right surfaces of the first magnetic component 11 and the third magnetic component 16 are both provided with slopes to facilitate the assembly of the magnetic assembly 10 and increase the magnet area to enhance the magnetic force.
  • the two slopes on the side of the first magnetic member 11 and the third magnetic member 16 are parallel to each other, and the two slopes on the side away from each other are parallel to each other.
  • the slopes are arranged so that the length of the first magnetic member 11 is located on the side of the strong magnetic surface. Less than the length on the side of the weak magnetic surface, that is, the cross section of the first magnetic member 11 gradually decreases from the top surface to the bottom surface, and the cross section of the third magnetic member 16 gradually decreases from the top surface to the bottom surface.
  • this embodiment also provides a magnetic ring structure.
  • the magnetic ring structure is composed of the magnetic components 10 described in Embodiment 3. Multiple magnetic components 10 are arranged in a ring shape along the length direction of the magnetic ring structure. structure. Among them, the first magnetic components 11 and the third magnetic components 16 are arranged alternately in sequence.
  • a strong magnetic ring group 60 is provided on the side of the weak magnetic surface of the magnetic ring structure, and the internal magnetic field direction of the strong magnetic ring group 60 is the radial direction of the magnetic ring structure (as shown in Figure As shown in 17, in the radial direction of the magnetic ring structure, with the dotted line in the figure as the dividing line, the magnetic pole of the part on one side of the dotted line is N pole, and the magnetic pole of the part on the other side is S pole).
  • This setting can further enhance the magnetic ring.
  • the strong magnetic ring set 60 can be used in strong magnetic accessories such as car mounts and wireless chargers.
  • the strong magnetic ring groups 60 are arranged in parallel and spaced apart from the magnetic ring structure, and the spacing distance depends on the specific design requirements.
  • the strong magnetic ring group 60 is arranged concentrically with the magnetic ring structure, and the circumferential widths of the strong magnetic ring group 60 and the magnetic ring structure are approximately the same.
  • the ferromagnetic ring group 44 includes a plurality of ferromagnetic components 46 , and the plurality of ferromagnetic components 46 are sequentially arranged in a ring-shaped structure along the circumferential direction.
  • the magnetic ring structure provided in the above embodiment is applied to mobile phone cases and other accessories.
  • Embodiment 1 - Embodiment 3 There is a magnetic ring component built into the mobile phone.
  • the magnetic ring structure provided in Embodiment 1 - Embodiment 3 is built into wireless chargers, card holders, desktop holders, car holders and other accessories, so that they can attract each other through magnetism. Secure your phone and accessories.
  • the strong magnetic side of the magnetic ring structure faces outward and the weak magnetic side faces inward.
  • the strong magnetic side faces the mobile phone. Due to the special magnetic pole arrangement of the magnetic ring structure, Using the Halbeck principle, you can achieve greater magnetic force by using smaller magnetic parts, which facilitates the fixation of mobile phones and accessories and reduces the size and weight of accessories.
  • Usage scenario 2 As shown in Figure 17, under normal circumstances, users who use mobile phones are accustomed to setting up The protective case is used to protect the mobile phone. Since the protective case has a certain thickness, if the protective case is placed on the mobile phone and then magnetized to attract other accessories, the magnetic force will be greatly reduced due to the increase in the distance between the magnets, resulting in magnetic The suction is not firm.
  • the magnetic ring structure provided in Embodiment 1 - Embodiment 3 in the protective case.
  • the magnetic ring structure in the mobile phone case and the magnetic ring structure in the accessory are magnetically attracted to the accessory and the mobile phone. fixed.
  • the weak magnetic surface is close to the side of the mobile phone and the strong magnetic surface is away from the side of the mobile phone, which can reduce the impact of the magnetic ring structure on the mobile phone case on the internal electronic components of the mobile phone.
  • the strong magnetic surface Externally, when magnetically attached to accessories, the two strong magnetic surfaces attract each other, further enhancing the stability of the magnetic attraction.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
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  • Electromagnetism (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

本申请提供一种磁性组件及具有该磁性组件的磁环结构，该磁性组件包括第一磁性件和第二磁性件，第一磁性件包括沿第一磁性件的宽度方向依次设置的第一磁性部、中间部和第二磁性部，中间部包括沿第一磁性件的长度方向依次排布的第一无磁区域、容纳区域和第二无磁区域，第二磁性件设于所述容纳区域。本申请充分利用了海尔贝克原理，对磁体结构进行合理排布使得磁性组件的磁力线朝向一侧聚集形成强磁场，另一侧因磁力线较少，形成弱磁场，可以通过最少量的磁体产生最强的磁场，降低磁铁生产成本，并可适用多种场景。

Description

一种磁性组件及磁环结构 技术领域
本实用新型涉及磁体应用技术领域，尤其涉及一种磁性组件及磁环结构。
背景技术
在手机等移动设备的使用中，磁吸手机保护壳、磁吸支架以及磁吸无线充电设备等都应用到了磁铁，例如通过磁铁两面的磁极与手机保护壳和磁吸手机支架相吸则可达到固定支撑手机的效果。但这些现有磁吸结构仍然存在一些问题，在实际应用中，磁铁被固定于手机壳上，对于手机支架或者无线充一侧，需要较大的磁力来保证稳固吸附或者增强充电效果，然而对于手机由于其与手机保护壳已经相对固定，并不需要磁铁再提供很大的磁力实现固定，反而过大的磁力会对手机内部电子元件产生不利的影响。但是现有的磁吸手机壳中磁铁两面的磁吸强度往往相同，例如参照图1举例出一种现有技术中磁吸结构的磁感线分布图，该磁吸结构的上下两侧的磁通量相同，这种两面磁力相同的结构存在磁吸太弱则稳固效果不佳、磁性太强则对手机不利的问题。
申请内容
因此，为克服现有技术中的缺陷和不足，本申请实施例提供了一种磁性组件及磁环结构，具有两侧磁吸强度不同的特点。
具体地，本申请实施例一种磁性组件，包括第一磁性件和第二磁性件，所述第一磁性件包括沿所述第一磁性件的宽度方向依次设置的第一磁性部、中间部和第二磁性部，所述中间部包括沿所述第一磁性件的长度方向依次排布的第一无磁区域、容纳区域和第二无磁区域，所述第二磁性件设于所述容纳区域。
进一步的，本申请实施例还提供一种磁环结构，包括多个上述的磁性组件，多个所述磁性组件沿所述磁性组件的长度方向排布成环状结构。
本申请提供的磁性组件及磁环组件可以达成以下一个或多个有益效果：多个磁性组件间隔排布形成圆环形磁环结构，且每个磁性组件包括第一磁性件和设于第一磁性件中间的第二磁性件，第一磁性件沿轴向充磁，第二磁性件沿径向充磁，形成海尔贝克阵列，使得第一磁性组件的两个表面的磁场强度不同，实际应用时可使得磁场较弱的一侧靠近手机，减小对手机的不良影响，磁场较强的一侧靠近支架或者无线充，增强稳固性。
附图说明
下面将结合附图，对本实用新型的具体实施方式进行详细的说明。
图1为现有技术中一种磁吸结构的磁感线分布示意图。
图2为实施例一提供的一种磁性组件的示意图。
图3为图2所示的磁性组件的分解示意图。
图4为图2所示的磁性组件A-A方向的剖视图。
图5为图2所示的磁性组件的磁感线分布示意图。
图6为实施例一提供的一种磁环结构的示意图。
图7为实施例一提供的另一种磁环结构的示意图。
图8为实施例一提供的又一种磁环结构的示意图。
图9为实施例一提供的一种磁环结构的制造方法流程图。
图10为实施例二提供的一种磁性组件的示意图。
图11为实施例二提供的另一种磁性组件的示意图。
图12为实施例三提供的一种磁性组件的示意图。
图13为图12所示的磁性组件的分解示意图。
图14为图12所示的磁性组件的另一面的示意图。
图15为实施例三提供的一种磁环结构的示意图。
图16为实施例三提供的另一种磁环结构的示意图。
图17为图16所示的磁环结构中强磁件的示意图。
图18为实施例四提供的磁环结构应用场景示意图。
具体实施方式
在详细描述实施例之前，应该理解的是，本发明不限于本申请中下文或附图中所描述的详细结构或元件排布。本发明可为其它方式实现的实施例。而且，应当理解，本文所使用的措辞及术语仅仅用作描述用途，不应作限定性解释。本文所使用的“包括”、“包含”、“具有”等类似措辞意为包含其后所列出之事项、其等同物及其它附加事项。特别是，当描述“一个某元件”时，本发明并不限定该元件的数量为一个，也可以包括多个。
实施例一
如图2和图3所示，本实施例提供一种磁性组件10，磁性组件10包括第一磁性件11和第二磁性件12，第一磁性件11包括沿第一磁性件11的宽度方向依次设置的第一磁性部110、中间部111和第二磁性部112，中间部111包括沿第一磁性件11的长度方向依次排布的第一无磁区域111a、容纳区域111b和第二无磁区域111c，所述第二磁性件12设于容纳区域111b。
请参阅图4，磁性组件10具有沿其厚度方向相对设置的顶面13和底面14，第一磁性部110在顶面13的磁极与其在底面14的磁极极性相反，在图4中，第一磁性部110顶面13的磁极为N极，底面14的磁极为S极；第二磁性部112在顶面13的磁极与其在底面14的磁极极性相反；第二磁性部112顶面13的磁极为S极，底面14的磁极为N极；第一磁性部110在顶面13的磁极与第二磁性部112在顶面13的磁极极性相反，第二磁性件12靠近第一磁性部一侧的磁极与靠近第二磁性部一侧的磁极极性相反，第二磁性件12靠近第一磁性部110一侧的磁极为N极，第二磁性件12靠近第二磁性部112一侧的磁极为S极。换言之，第一磁性部110和第二磁性部112的磁极性取向(或者充磁方法)沿磁性组件10的顶面13至底面14的方向(即磁性组件10的厚度方向)，且二者位于同一面(同位于顶面13或者同位于底面14)的磁极相反，即二者的磁极性取向(或者充磁方向)相反。而第二磁性件12的磁极性取向(或者充磁方法)为磁性组件10的宽度方向，由此，第一磁性部110，第二磁性件12和第三磁性部112共同排布形成海尔贝克阵列，使得磁性组件10的顶面13和底面14的磁场强度不同，如图5所示，从磁感线的排布可以看出顶面13的磁场强度明显大于底面14的磁场强度(磁感线越多越密集，磁场强度越强)。当将磁性组件10应用到电子设备配件中时，底面14一侧连接手机，顶面13一侧连接支架或无线充电器等手机配件，解决了现有技术中的磁性组件两面的磁吸力相同，导致与手机磁吸的一面磁吸力过大影响手机正常工作，另一面磁吸力又不足以与手机外部的支架或无线充电器等牢固吸附的问题。文中所述的顶面和底面是以图4中视图所示的视角方向进行定义的。
进一步地，第二磁性件12的宽度与第一磁性件11的宽度的比值为t，0.2≤t≤0.4。第一磁性件11的宽度和第二磁性件12的宽度均指自身在磁性组件宽度方向上的尺寸大小。优选地，t为0.25。当0.2≤t≤0.4时，第一磁性部110和第二磁性部112之间的距离较小，增大了二者之间形成的磁场的强度，同时避免了用于收容第二磁性件120的中间部111由于宽度过大导致第一磁性件11在受到外力作用时容易发生断裂的风险。
进一步地，第一磁性件11的长度为m，第一无磁区域111a的长度为a，0.1m≤a≤0.3m，第二无磁区域111c的长度为b，0.1m≤b≤0.3m。具体地，第一磁性件11包括沿磁性组件10长度方向设置的第一端和第二端，第二磁性件12包括沿磁性组件10长度方向设置的第三端和第四端，第三端靠近第一端，第四端靠近第二端。从第一端的端面与顶面13相交的线段的中点到第二端的端面与顶面13相交的线段的中点的距离大小即为m，从第一端的端面与顶面13相交的线段的中点到第三端的距离大小为a，从第二端的端面与顶面13相交的线段的中点到第四端的距离大小为b。当0.1m≤a≤0.3m，0.1m≤b≤0.3m时既可以避 免第二磁性件12在磁性组件10长度方向上排列过于紧密导致相邻的第二磁性件12磁场互相影响，又尽可能增大了第二磁性件12的长度，进一步增强了磁性组件10两侧的磁场强度。
进一步地，第一磁性件11的端部设有圆角和/或第二磁性件12的端部设有圆角。圆角的设置可以降低第一磁性件11的四角和第二磁性件12的两端由于应力集中引起碎裂的风险。
进一步地，容纳区域111b设有凹槽或通孔，第二磁性件12设于凹槽或通孔内，且第二磁性件12的表面与第一磁性件11的表面平齐。优选的，凹槽或者通孔设置于第一磁性件11的中心位置，使得第二磁性件12位于第一磁性件11的中心位置。磁性组件10可以为扇环柱状结构，凹槽或通孔的形状为扇环柱状。
如图6所示，本实施例还提供一种磁环结构，磁环结构包括多个上述的磁性组件10，多个磁性组件10沿其长度方向排布成环状结构。其中多个磁性组件10例如形状大小相同，便于批量生产和替换，每个磁性组件10例如为扇环柱状结构，以间隔排布成圆环形磁环结构，可以更好的匹配现有的环形磁吸座，多个磁性组件10间隔设置例如具体为任意相邻的两个磁性组件10之间形成卸磁间隙15，例如卸磁间隙不小于0.3mm，即任意相邻的两个磁性组件10之间的最小距离不小于0.3mm。避免后续装配时磁力相吸导致磁吸结构翘曲变形或损坏，可以提高装配效率，降低装配难度。
进一步地，各第一磁性部110共同围成第一环形磁性区域，各第一磁性部110位于磁环结构的顶面11的磁极极性相同，各第二磁性部112共同围成第二环形磁性区域，各第二磁性部112位于磁环结构的顶面的磁极极性相同，以保证各第一磁性件11的磁感线在磁环结构的轴向上的统一性，避免相邻的第一磁性件11互相干扰。
进一步地，磁性组件10的数量为6至20个。由于磁环结构为环形，磁性组件数量过少时单个磁性组件10的弧长较大，增加了断裂的风险和生产制造的难度，磁性组件10数量过多时又会增加生产制造的成本。
进一步地，磁环结构的顶面形成强磁面，磁环结构的底面形成弱磁面。磁环结构的顶面的磁力大小与磁环结构的底面的磁力大小比值为n，2.2≤n≤3.8。本实施例中，顶面的磁力大小在22N至26N之间，底面的磁力大小在6N至12N之间，既保证了磁环结构的顶面一侧有足够的磁力与手机外部的配件磁吸连接，又避免了磁环结构的底面一侧与手机正对时由于磁力过大影响手机内部器件的正常工作。使用时可使底面一侧与手机磁吸结合，使顶面一侧与磁吸支架等磁吸配件结合。相比于图1所示的两面磁通量相同的现有磁 吸结构而言，本实施例提供的磁环结构能既可以实现降低手机一侧的磁通量以减少对手机的损害，又可以实现增强支架一侧的磁通量以增强支架的吸力和稳固性。
进一步地，如图磁环结构还包括多个铁片20，多个铁片20与多个磁性组件10共同围设形成环形结构。通过设置铁片20可以减少磁性组件10的数量，有效降低生产制造的成本。
在一实施例中，请参阅图7和图8，磁环结构还包括第一容置壳30，第一容置壳30上设有环形的第一容置腔，当多个磁性组件10设置在第一容置腔内时，磁性组件10的一侧与第一容置腔的底壁贴合，可以更好地起到隔绝磁力的效果，减少对手机的影响。第一容置壳30对多个磁性组件10的排布起限位导向作用，其材质可以选用五金材质也可以选用塑胶材质，本实施例并不限制。在实际生产中可先将磁环结构安装在第一容置壳30内以进行固定，并可直接将固定好的磁环结构装配至手机保护壳、磁吸支架、无线充等的壳体内，无需另外组装，有利于简化生产工序。
进一步地，本实施例提供的磁环结构还包括定位磁性组件40，定位磁性组件40例如邻近圆环形磁环结构设置，且位于磁环结构的环外侧。定位磁性组件40例如可以由两个或者多个单元组成，单元与单元之间保持间隙，也可更进一步的设置第二容置壳50，第二容置壳50形成第二容置腔，定位磁性组件40嵌设在第二容置腔内，可通过第二容置腔对定位磁性组件40中的各个单元的排布进行限位和导向。定位磁性组件40例如为图8中所示的长条结构，例如可以参照市售的Magsafe磁吸配件的形状设计，对手机的吸附起导向定位作用。
更进一步地，可在第一容置壳30的第一容置腔内设置多个隔板，多个隔板例如沿圆环形第一容置壳30的径向设置，且多个隔板中任意相邻的两个隔板之间形成一个第一子容置腔，每个磁性组件10对应嵌设在一个第一子容置腔中。可以对每个磁性组件10进行更好的限位，保持多个磁性组件10之间的间隙。更进一步的，将磁环结构嵌设在第一容置壳20内时，将每个磁性组件的磁性较弱的一侧与第一容置腔的底壁贴合，实现更好的隔磁效果。
请参考图9，本发明实施例还提供了一种磁环结构的制造方法，该方法包括以下步骤：
S100：对磁性粉末进行取向成型和高温烧结，得到料胚。
具体地，先将主要成分为稀土元素钕、铁、硼的原材料放到机器里面搅拌破碎，形成颗粒状原料，再把熔炼后的颗粒状原料放到气流粉碎机进行粉碎，得到磁性粉末，然后利用磁性粉末和外磁场的相互作用，对磁性粉末的易磁化方向进行排列，使其与最终充磁方 向一致，同时进行料胚定型，最后将料胚放进1000摄氏度以上的熔炼炉里面进行高温烧结硬化成型。其中，稀土元素钕可被镝、镨等其他稀土金属部分替代，铁也可被钴、铝等其他金属部分替代。
S200：对料胚进行切割加工，得到第一待充磁件和第二待充磁件，在第一待充磁件的中部加工出安装槽。
具体地，先通过线切割或激光切割将料胚切割成薄片，再对薄片进行切割加工，得到第一待充磁件和第二待充磁件，安装槽的两端分别贯穿顶面和底面。
S300：对第一待充磁件进行充磁得到第一磁性件11，对第二待充磁件进行充磁得到第二磁性件12。
具体地，先将充磁机调整到合适的电流电压，再分别对第一待充磁件和第二待充磁件进行充磁，得到第一磁性件11和第二磁性件12。
S400：将第二磁性件12安装到安装槽内，形成磁性组件10。
S500：将多个磁性组件10按环形进行排布并组装，得到磁环结构。
具体地，先将单个第二磁性件12与单个第一磁性件11装配得到磁性组件10，再将多个磁性组件10按环形排布并装配到第一容置壳30的第一容置腔内，便于定型后与手机的无线充电区域对应，多个磁性组件10共同形成海尔贝克阵列。
在一实施例中，步骤S300具体包括：
沿第一方向将第一待充磁件依次划分为第一待充磁部、中间部111和第二待充磁部；
沿第二方向对第一待充磁部进行充磁得到第一磁性部110；
沿第三方向对第二待充磁部进行充磁得到第二磁性部112；
对第二待充磁件进行充磁得到第二磁性件12；
其中，第二方向与第三方向相反且分别与第一方向垂直。
需要说明的是，第一方向与磁性组件的径向相同，第二方向和第三方向中的一个与磁性组件的轴向相同。
在一实施例中，磁环结构的制造方法还包括步骤S220，步骤S220在步骤S200和步骤S300之间：
S220：将第一磁性件11和第二磁性件12放进研磨机进行研磨抛光，然后放进电镀设备里面浸泡电镀。
第一磁性件11和第二磁性件12经过抛光、电镀后表面变得更加光滑而且耐腐蚀，与手机接触时不易刮花手机。
实施例二
如图10和图11所示，与实施例一相比，本实施例的区别在于第二磁性件12包括沿第一磁性件11的厚度方向排布的第三磁性部121和第四磁性部122，第三磁性部121靠近第一磁性部110一侧的磁极与靠近第二磁性部112一侧的磁极极性相反；第四磁性部122靠近第一磁性部110一侧的磁极与靠近第二磁性部112一侧的磁极极性相反且第四磁性部122靠近第一磁性部110一侧的磁极与第三磁性部121靠近第一磁性部110一侧的磁极相反。
具体地，在图10中，第一磁性部110顶面13的磁极为N极，底面14的磁极为S极；第二磁性部112顶面13的磁极为S极，底面14的磁极为N极；第三磁性部121靠近第一磁性部110一侧的磁极为S极，靠近第二磁性部112一侧的磁极为N极，而第四磁性部122靠近第一磁性部110一侧的磁极为N极，靠近第二磁性部112一侧的磁极为S极。如此磁极排布不仅能够增强磁性组件10顶面的磁场强度，减弱底面的磁场强度，还能使得第二磁性件12与第一磁性件11互吸，便于将第一磁性件11与第二磁性件12进行组装。文中所述的顶面和底面是以图10中视图所示的视角方向进行定义的。应当指出的是，本申请附图中磁性组件10表面上附加的虚线仅用于区分各磁性部。
在图11中，第一磁性部110顶面13的磁极为N极，底面14的磁极为S极；第二磁性部112顶面13的磁极为S极，底面14的磁极为N极；第三磁性部121靠近第一磁性部110一侧的磁极为N极，靠近第二磁性部112一侧的磁极为S极，而第四磁性部122靠近第一磁性部110一侧的磁极为S极，靠近第二磁性部112一侧的磁极为N极。如此磁极排布不仅能够增强磁性组件10顶面的磁场强度，减弱底面的磁场强度，还能使得第二磁性件12与第一磁性件11互吸，便于将第一磁性件11与第二磁性件12进行组装。文中所述的顶面和底面是以图11中视图所示的视角方向进行定义的。应当指出的是，本申请附图中磁性组件11表面上附加的虚线仅用于区分各磁性部。
实施例三
如图12-14所示，本实施例中提供的磁性组件10，在实施例一和实施例二的基础上，增加第三磁性件16，第三磁性件16位于第一磁性件11长度方向的一侧。其中，第三磁性件16包括沿第一磁性件的宽度方向排布的第五磁性部161和第六磁性部162，第五磁性部161在顶面的磁极与其在底面的磁极以及第一磁性部110在顶面的磁极均相同，第六磁性部162在顶面的磁极与其在底面的磁极以及第二磁性部112在顶面的磁极均相同。在图12和图14中，第五磁性部161顶面和底面的磁极均为N极，第一磁性部110顶面的磁极也 为N极；第六磁性部162顶面和底面的磁极均为S极，第二磁性部112顶面的磁极也为S极。通过上述的磁极排布，本实施例提供的磁性组件10在顶面和底面分别形成强磁面和弱磁面。
进一步的，第一磁性件11和第三磁性件16的左、右表面均设置成斜面，以便于磁性组件10的组装，增加磁体面积从而增强磁力。第一磁性件11和第三磁性件16互相靠近一侧的两个斜面互相平行，相互远离一侧的两个斜面相互平行，斜面的设置使得第一磁性件11位于强磁面一侧的长度小于位于弱磁面一侧的长度，也即，第一磁性件11自顶面到底面方向上截面逐渐减小，第三磁性件16自顶面到底面方向上截面逐渐减小。
如图15所示，本实施例还提供一种磁环结构，磁环结构由实施例三中所述的磁性组件10构成，多个磁性组件10沿磁环结构的长度方向排布成环状结构。其中，第一磁性件11和第三磁性件16依次交替排布。
在一实施例中，如图16所示，在磁环结构的弱磁面一侧设置强磁环组60，该强磁环组60的内部磁场方向为磁环结构的径向方向(如图17所示，在磁环结构的径向方向，以图中虚线为分界，虚线一侧的部分的磁极为N极，另一侧的部分的磁极为S极)，如此设置可进一步增强磁环结构的强磁面一侧的磁力。该强磁环组60可用于车载支架、无线充电器等强磁配件产品。在所示的实施例中，强磁环组60与磁环结构平行间隔排布，间隔距离视具体设计需求而定。优选地，强磁环组60与磁环结构同心布置，且强磁环组60与磁环结构的环向宽度大致相同。
具体地，强磁环组44包括多个强磁件46，多个强磁件46沿圆周方向依次排布成环形结构。
实施例四
如图17所示，本实施例中，将上述实施例提供的磁环结构应用在手机壳以及其他配件中。
使用场景一：手机内部内置有磁环组件，在无线充电器，卡包，桌面支架，车载支架等配件中内置实施例一--实施例三中提供的磁环结构，就可以通过磁性相吸将手机与配件固定。同时，在配件内设置磁环结构时，磁环结构的强磁面朝外，弱磁面朝内，在跟手机磁吸时，强磁面面向手机，由于磁环结构的特殊磁极排布，利用海尔贝克原理，可以通过使用较小体积的磁性件，实现较大的磁力，方便手机和配件的固定以及减小配件的体积和重量。
使用场景二：如图17所示，一般情况下，使用手机的用户都习惯性的在手机上套设 保护壳以保护手机，而由于保护壳具有一定的厚度，此时若将保护壳套设在手机上，再去磁吸其他配件，则会由于磁铁之间距离增加而大幅减小磁力，导致磁吸不牢固。为解决上述问题，我们在保护壳内也设置实施例一--实施例三中提供的磁环结构，通过手机壳内的磁环结构与配件内的磁环结构相磁吸来将配件与手机固定。同时，在手机内设置磁环结构时，弱磁面靠近手机一侧，强磁面远离手机一侧，可以减少因手机壳设置磁环结构对手机内部电子元器件的影响，同时，强磁面对外，在跟配件磁吸时，两个强磁面相互磁吸，进一步增强了磁吸的稳固性。
本文所描述的概念在不偏离其精神和特性的情况下可以实施成其它形式。所公开的具体实施例应被视为例示性而不是限制性的。因此，本申请的范围是由所附的权利要求，而不是根据之前的这些描述进行确定。在权利要求的字面意义及等同范围内的任何改变都应属于这些权利要求的范围。

Claims (26)

  1. 一种磁性组件，其特征在于，所述磁性组件具有沿其厚度方向相对设置的顶面和底面，所述顶面的磁场强度与所述底面的磁场强度不同。
  2. 如权利要求1所述的磁性组件，其特征在于，所述磁性组件包括两个磁性部，所述两个磁性部的内部磁场方向以预设角度变化，所述预设角度大于0度且小于180度。
  3. 如权利要求1所述的磁性组件，其特征在于，所述磁性组件包括第一磁性件和第二磁性件，所述第一磁性件包括沿所述第一磁性件的宽度方向依次设置的第一磁性部、中间部和第二磁性部，所述中间部包括沿所述第一磁性件的长度方向依次排布的第一无磁区域、容纳区域和第二无磁区域，所述第二磁性件设于所述容纳区域。
  4. 如权利要求2所述的磁性组件，其特征在于，所述第一磁性部在所述顶面的磁极与其在所述底面的磁极极性相反，所述第二磁性部在所述顶面的磁极与其在所述底面的磁极极性相反，所述第一磁性部在所述顶面的磁极与所述第二磁性部在所述顶面的磁极极性相反，
    所述第二磁性件靠近所述第一磁性部一侧的磁极与靠近所述第二磁性部一侧的磁极极性相反。
  5. 如权利要求2所述的磁性组件，其特征在于，所述第一磁性部在所述顶面的磁极与其在所述底面的磁极极性相反，所述第二磁性部在所述顶面的磁极与其在所述底面的磁极极性相反，所述第一磁性部在所述顶面的磁极与所述第二磁性部在所述顶面的磁极极性相反，
    所述第二磁性件包括沿所述第一磁性件的厚度方向排布的第三磁性部和第四磁性部，所述第三磁性部靠近所述第一磁性部一侧的磁极与靠近所述第二磁性部一侧的磁极极性相反；所述第四磁性部靠近所述第一磁性部一侧的磁极与靠近所述第二磁性部一侧的磁极极性相反，且所述第四磁性部靠近所述第一磁性部一侧的磁极与所述第三磁性部靠近所述第一磁性部一侧的磁极相反。
  6. 如权利要求5所述的磁性组件，其特征在于，所述第三磁性部靠近所述第一磁性部一侧的磁极与所述第一磁性部在所述顶面的磁极相反，或所述第三磁性部靠近所述第一磁性部一侧的磁极与所述第一磁性部在所述顶面的磁极相同。
  7. 如权利要求1-6任一项所述的磁性组件，其特征在于，所述第二磁性件的宽度与所述第一磁性件的宽度的比值为t，0.2≤t≤0.4。
  8. 如权利要求1-6任一项所述的磁性组件，其特征在于，所述第一磁性件的长度为m，所述第一无磁区域的长度为a，0.1m≤a≤0.3m，所述第二无磁区域的长度为b，0.1m≤b≤0.3m。
  9. 如权利要求1-6任一项所述的磁性组件，其特征在于，所述第一磁性件的端部设有圆角和/或所述第二磁性件的端部设有圆角。
  10. 如权利要求1-6任一项所述的磁性组件，其特征在于，所述容纳区域设有凹槽或通孔，所述第二磁性件设于所述凹槽或所述通孔内，且所述第二磁性件的表面与所述第一磁性件的表面平齐。
  11. 如权利要求10所述的磁性组件，其特征在于，所述第二磁性件位于所述第一磁性件的中心位置。
  12. 如权利要求10所述的磁性组件，其特征在于，所述磁性组件为扇环柱状结构，所述凹槽或所述通孔的形状为扇环柱状。
  13. 如权利要求3-6任一项所述的磁性组件，其特征在于，所述磁性组件还包括第三磁性件，所述第三磁性件位于所述第一磁性件长度方向的一侧。
  14. 如权利要求13所述的磁性组件，其特征在于，所述第三磁性件包括沿所述第一磁性件的宽度方向排布的第五磁性部和第六磁性部，所述第五磁性部在所述顶面的磁极与其在所述底面的磁极以及所述第一磁性部在所述顶面的磁极均相同；所述第六磁性部在所述顶面的磁极与其在所述底面的磁极以及所述第二磁性部在所述顶面的磁极均相同。
  15. 如权利要求14所述的磁性组件，其特征在于，所述第一磁性件和所述第三磁性件的左、右表面均设置成斜面。
  16. 如权利要求15所述的磁环组件，其特征在于，所述第一磁性件自顶面到底面方向上截面逐渐减小，所述第二磁性件自顶面到底面方向上截面逐渐增大。
  17. 一种磁环结构，其特征在于，包括多个如权利要求1-12任一项所述的磁性组件，多个所述磁性组件沿所述磁性组件的长度方向排布成环状结构。
  18. 如权利要求17所述的磁环结构，其特征在于，任意相邻的两个所述磁性组件之间形成卸磁间隙，所述卸磁间隙的最小距离不小于0.3mm。
  19. 如权利要求17所述的磁环结构，其特征在于，各所述第一磁性部共同围成第一环形磁性区域，各所述第一磁性部位于所述磁环结构的顶面的磁极极性相同，各所述第二磁性部共同围成第二环形磁性区域，各所述第二磁性部位于所述磁环结构的顶面的磁 极极性相同。
  20. 如权利要求19所述的磁环结构，其特征在于，所述磁环结构的顶面形成强磁面，所述磁环结构的底面形成弱磁面。
  21. 如权利要求19所述的磁环结构，其特征在于，所述磁环结构的顶面的磁力大小与所述磁环结构的底面的磁力大小比值为n，2.2≤n≤3.8。
  22. 一种磁环结构，其特征在于，包括多个如权利要求13-16任一项所述的磁性组件，多个所述磁性组件沿所述磁性组件的长度方向排布成环状结构，且所述第一磁性件和所述第三磁性件沿圆周方向依次交替排布。
  23. 如权利要求22所述的磁环结构，其特征在于，各所述第一磁性部和各所述第五磁性部共同围成第一环形磁性区域，各所述第一磁性部和各所述第五磁性部位于所述磁环组件的顶面的磁极极性相同；各所述第二磁性部和各所述第六磁性部共同围成第二环形磁性区域，各所述第二磁性部和各所述第六磁性部位于所述磁环组件的顶面的磁极极性相同。
  24. 如权利要求23所述的磁环结构，其特征在于，所述磁环结构的顶面形成强磁面，所述磁环结构的底面形成弱磁面。
  25. 如权利要求24所述的磁环结构，其特征在于，所述磁环结构的弱磁面一侧设有强磁环组，所述强磁环组包括多个强磁件，所述多个强磁件排布成环形结构。
  26. 如权利要求25所述的磁环结构，其特征在于，所述强磁件包括沿所述环形结构的径向方向排布的第七磁性部和第八磁性部，所述第七磁性部的顶面与所述第八磁部的顶面磁极相反，所述第七磁性部的底面与所述第七磁性部的顶面磁极相同，所述第八磁部的底面与所述第八磁部的顶面磁极相同。
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CN212185448U (zh) * 2020-05-22 2020-12-22 广东小天才科技有限公司 一种磁吸结构、磁吸搭扣及可穿戴设备
CN212785434U (zh) * 2020-06-18 2021-03-23 华为技术有限公司 一种电子设备
CN114068135A (zh) * 2021-11-24 2022-02-18 杭州千石科技有限公司 一种用于磁吸的单面多极环形充磁磁片
CN216904366U (zh) * 2022-03-01 2022-07-05 包头市英思特稀磁新材料股份有限公司 一种磁性组件及充电单元
CN217590871U (zh) * 2022-04-27 2022-10-14 深圳市蓝禾技术有限公司 磁吸结构和磁吸手机保护壳
CN115036094A (zh) * 2022-08-12 2022-09-09 深圳市魔方数码科技有限公司 磁性组件及其制造方法
CN218274138U (zh) * 2022-09-07 2023-01-10 深圳市图拉斯科技有限公司 一种磁性组件及具有该磁性组件的磁环组件
CN218482044U (zh) * 2022-09-15 2023-02-14 深圳市图拉斯科技有限公司 一种磁环组件

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