CN220171864U - Magnetic component and magnetic bracket - Google Patents
Magnetic component and magnetic bracket Download PDFInfo
- Publication number
- CN220171864U CN220171864U CN202321349369.4U CN202321349369U CN220171864U CN 220171864 U CN220171864 U CN 220171864U CN 202321349369 U CN202321349369 U CN 202321349369U CN 220171864 U CN220171864 U CN 220171864U
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- magnetic
- conductive member
- ring group
- assembly
- magnetic ring
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- 230000006698 induction Effects 0.000 abstract description 21
- 230000002708 enhancing effect Effects 0.000 abstract description 11
- 230000001965 increasing effect Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model provides a magnetic attraction assembly and a magnetic attraction bracket, which are characterized in that an existing magnetic ring assembly is split into a first magnetic ring group, a middle magnetic conduction piece and a second magnetic ring group which are sequentially distributed along the radial direction, the directions of internal magnetic fields of the first magnetic ring group and the second magnetic ring group are all axial and opposite, namely one surface is N-pole and the other surface is S-pole, no non-magnetic area exists, the existing non-magnetic area is removed from the other angle, and the middle magnetic conduction piece is arranged, so that not only is the magnet material saved, the cost reduced, but also the middle magnetic conduction piece can have the effect of gathering magnetic induction lines, thereby enhancing the magnetic field intensity and enhancing the magnetic force. On the premise of not increasing the width and thickness of the magnetic attraction component, the magnetic force lines generated by the first magnetic ring group and the magnetic force lines generated by the second magnetic ring group form a close loop through the middle magnetic conduction piece, so that compared with the magnetic ring group magnetized by a single body, the magnetic attraction strength of the magnetic attraction end can be increased.
Description
Technical Field
The utility model relates to the technical field of electronic equipment accessories, in particular to a magnetic component and a magnetic bracket.
Background
After the apple defines MagSafe (MagSafe Charger), a magnetic ring component is built in the mobile phone or the mobile phone accessory, so that the mobile phone or the mobile phone accessory has a magnetic attraction function. The mobile phone accessories are, for example, a wireless charger, a card bag, a vehicle-mounted bracket and the like, and can be matched with the mobile phone in a magnetic attraction manner through a magnetic ring assembly, so that the mobile phone accessories are convenient to use and are widely applied. However, most of the magnetizing schemes of the MagSafe magnetic ring assembly on the market at present are to perform multipole magnetizing on a single magnet, for example, perform axial magnetizing and radial magnetizing on the single magnet, so that a plurality of magnetic areas are formed on the same magnetic surface of the single magnet, and a non-magnetic area exists in the magnet, so that the magnetic attraction strength of the magnetic ring assembly is reduced, and meanwhile, the non-magnetic area incapable of generating magnetic force causes the waste of magnet materials.
Disclosure of Invention
In view of the above, the present utility model provides a magnetic assembly and a magnetic bracket that can effectively solve the above-mentioned problems.
The utility model provides a magnetic assembly which comprises a first magnetic ring group, a second magnetic ring group and a middle magnetic conduction piece, wherein the second magnetic ring group is arranged on the periphery of the first magnetic ring group, and the middle magnetic conduction piece is arranged between the first magnetic ring group and the second magnetic ring group.
In an embodiment, the magnetic assembly further includes a fixing member, and the first magnetic ring set and the second magnetic ring set are both fixed on one side of the fixing member.
In an embodiment, the first magnetic ring set includes a plurality of first magnetic units arranged in a circumferential direction, and the second magnetic ring set includes a plurality of second magnetic units arranged in a circumferential direction.
In an embodiment, the magnetic assembly further includes an outer magnetic conductive member, and the outer magnetic conductive member is disposed on a side of the second magnetic ring set away from the middle magnetic conductive member.
In an embodiment, the magnetic assembly further includes an inner magnetic conductive member, and the inner magnetic conductive member is disposed on a side of the first magnetic ring set away from the middle magnetic conductive member.
In an embodiment, the magnetic assembly further includes an inner magnetic conductive member and an outer magnetic conductive member, the outer magnetic conductive member is disposed on a side of the second magnetic ring set away from the middle magnetic conductive member, and the inner magnetic conductive member is disposed on a side of the first magnetic ring set away from the middle magnetic conductive member.
In an embodiment, the direction of the internal magnetic field of the first magnetic unit is the axial direction of the first magnetic ring set, and the direction of the internal magnetic field of the second magnetic unit is opposite to the direction of the internal magnetic field of the first magnetic unit.
In an embodiment, the width of the first magnetic units is the same as the width of the second magnetic units, and/or the number of the first magnetic units is the same as the number of the second magnetic units.
The utility model also provides a magnetic support, which comprises a support body and the magnetic component, wherein the support body comprises a base body and a fixing part connected with the base body, and the magnetic component is arranged on the base body.
In an embodiment, the magnetic support further comprises a wireless charging coil, and the magnetic component is arranged on the periphery of the wireless charging coil.
In summary, the present utility model provides a magnetic assembly and a magnetic support, wherein an existing magnetic assembly is split into a first magnetic ring set, a middle magnetic conductive member and a second magnetic ring set which are sequentially distributed along a radial direction, wherein the directions of internal magnetic fields of the first magnetic ring set and the second magnetic ring set are both axial and opposite, i.e. one N pole and one S pole are not provided with a non-magnetic area, and from another angle, the existing non-magnetic area is removed, and the middle magnetic conductive member is provided, so that not only is a magnet material saved, but also cost is reduced, and the middle magnetic conductive member can have an effect of gathering magnetic induction lines, thereby enhancing magnetic field strength and enhancing magnetic force. On the premise of not increasing the width and thickness of the magnetic attraction component, the magnetic force lines generated by the first magnetic ring group and the magnetic force lines generated by the second magnetic ring group form a close loop through the middle magnetic conduction piece, so that compared with the magnetic ring group magnetized by a single body, the magnetic attraction strength of the magnetic attraction end can be increased.
Drawings
Fig. 1 is a schematic perspective view of a magnetic assembly according to an embodiment of the utility model.
Fig. 2 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 3 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 4 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 5 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 6 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 7 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 8 is a schematic perspective view of a magnetic assembly according to another embodiment of the utility model.
Fig. 9 is a perspective cross-sectional view of the magnetic assembly of fig. 8 in one direction.
Fig. 10 is a front view of the magnetic assembly of fig. 7.
Fig. 11 is a rear view of the magnetic assembly of fig. 7.
Fig. 12 is a schematic perspective view of the magnetic attraction assembly and the wireless charging coil of the present utility model.
Fig. 13 is a schematic perspective view of a magnetic bracket according to an embodiment of the utility model.
Fig. 14 is an exploded view of the magnetic bracket of fig. 13.
Detailed Description
Before the embodiments are explained in detail, it is to be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The utility model is capable of other embodiments and of being practiced or of being carried out in various ways. 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 the terms "comprising," "including," "having," and the like are intended to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present utility model is not limited to the number of the element as one, but may include a plurality of the elements.
Referring to fig. 1, the present utility model provides a magnetic assembly 10 capable of enhancing magnetic force, and the magnetic assembly 10 can be applied to an electronic device with magnetic attraction requirement, such as a mobile phone, a tablet computer, etc., and an accessory, such as a wireless charger, a protective shell of the electronic device, a card bag, a bracket, etc., to realize a magnetic attraction matching function between any two. The magnetic assembly 10 includes a first magnetic ring set 12, a second magnetic ring set 14 disposed at the periphery of the first magnetic ring set 12, and an intermediate magnetic conductive member 16 disposed between the first magnetic ring set 12 and the second magnetic ring set 14.
In the illustrated embodiment, the first magnetic ring set 12 includes a plurality of first magnetic elements 18 arranged circumferentially, and the second magnetic ring set 14 includes a plurality of second magnetic elements 20 arranged circumferentially.
Defining an axial direction a and a circumferential direction B surrounding the axial direction, the first magnetic ring set 12, the second magnetic ring set 14 and the middle magnetic conductive member 16 all extend along the circumferential direction B, the first magnetic ring set 12 is located on the circumferential inner side of the middle magnetic conductive member 16, and the second magnetic ring set 14 is located on the circumferential outer side of the middle magnetic conductive member 16. The middle magnetic conductive member 16 has the functions of gathering magnetic induction lines and reducing magnetic leakage, so that the magnetic induction lines between the first magnetic unit 18 and the second magnetic unit 20 form a close loop, and the magnetic induction intensity is increased, thereby enhancing the magnetic force. The direction of the internal magnetic field of the first magnetic unit 18 is the axial direction of the first magnetic ring set 12, the axial direction is the thickness direction of the first magnetic ring set 12, the direction of the internal magnetic field of the second magnetic unit 20 is opposite to the direction of the internal magnetic field of the first magnetic unit 18, and the middle magnetic conductive member 16 is, for example, an iron sheet. Specifically, the magnetic induction lines generated by the magnetic units are distributed and diverged towards two sides, magnetic conduction pieces are arranged at two sides of the magnetic units, and the magnetic induction lines of the first magnetic unit 18 and the second magnetic unit 20 are respectively gathered in the magnetic conduction pieces, so that the magnetic induction lines close to the side surfaces of the magnetic units become dense, and the magnetic field strength is enhanced.
In the illustrated embodiment, the magnetic assembly 10 is generally annular, i.e., the first magnetic ring set 12, the second magnetic ring set 14, and the intermediate magnetic conductive member 16 are all annular, and therefore, the magnetic assembly 10 has a radial direction C. The first magnetic units 18 and the second magnetic units 20 are in a fan-shaped ring shape, the number of the first magnetic units 18 is the same as the number of the second magnetic units 20, for example, 6 first magnetic units 18 and 6 second magnetic units 20 are respectively arranged, and the 6 first magnetic units 18 are respectively in one-to-one correspondence with the 6 second magnetic units 20 in the radial direction. Preferably, the width of the first magnetic unit 18 is the same as the width of the second magnetic unit 20, and the thickness of the first magnetic unit 18 is the same as the thickness of the second magnetic unit 20. It should be understood that the width is the extension distance in the radial direction C and the thickness is the extension distance in the axial direction a.
It should be noted that the above-described axial direction a, circumferential direction B and radial direction C apply to all embodiments of the present utility model.
In the embodiment shown in fig. 2, the magnetic assembly 10 further includes a fixing member 22, preferably, the fixing member 22 may be a magnetic conductive member, the fixing member 22 is, for example, an iron sheet, and the first magnetic ring set 12, the second magnetic ring set 14 and the middle magnetic conductive member 16 are all fixed on one side of the fixing member 22, for example, the first magnetic ring set 12 and the second magnetic ring set 14 are connected and fixed with the fixing member 22 through magnetic attraction, the fixing member 22 plays a role of supporting and fixing the first magnetic ring set 12 and the second magnetic ring set 14, so that the magnetic assembly 10 is convenient to form a module, and the fixing member 22 has the functions of collecting magnetic induction lines and reducing magnetic leakage, thereby playing a role of enhancing magnetic force.
In the embodiment shown in fig. 3, the magnetic assembly 10 further includes an outer magnetic conductive member 24, where the outer magnetic conductive member 24 is, for example, an iron sheet, and the outer magnetic conductive member 24 is disposed on the radial outer side of the second magnetic ring set 14 away from the middle magnetic conductive member 16, and the outer magnetic conductive member 24 has the functions of collecting magnetic induction lines and reducing magnetic leakage, so that the magnetic induction lines on the outer side of the second magnetic unit 20 form a tight closed loop, and the magnetic induction strength is increased, thereby enhancing the magnetic force.
In the embodiment shown in fig. 4, the magnetic assembly 10 further includes the fixing member 22 and the outer magnetic conductive member 24, and the outer magnetic conductive member 24 is fixed on the fixing member 22.
In the embodiment shown in fig. 5, the magnetic assembly 10 further includes an inner magnetic conductive member 26, where the inner magnetic conductive member 26 is, for example, a sheet iron, and the inner magnetic conductive member 26 is disposed on the radial inner side of the first magnetic ring set 12 away from the middle magnetic conductive member 16, and the inner magnetic conductive member 26 has the functions of collecting magnetic induction lines and reducing magnetic leakage, so that the magnetic induction lines on the outer side of the second magnetic unit 20 form a tight closed loop, thereby increasing magnetic induction strength and further enhancing magnetic force.
In the embodiment shown in fig. 6, the magnetic assembly 10 further includes the fixing member 22 and the inner magnetic conductive member 26, and the inner magnetic conductive member 26 is fixed on the fixing member 22.
In the embodiment shown in fig. 7, the magnetic assembly 10 further includes the outer magnetic conductive member 24 and the inner magnetic conductive member 26, and the detailed description thereof will be omitted herein.
In the embodiment shown in fig. 8 and 9, the magnetic assembly 10 further includes a fixing member 22, an outer magnetic conductive member 24, and an inner magnetic conductive member 26, where the outer magnetic conductive member 24 is disposed on a radial outer side of the second magnetic ring set 14 away from the middle magnetic conductive member 16, and the inner magnetic conductive member 26 is disposed on a radial inner side of the first magnetic ring set 12 away from the middle magnetic conductive member 16, and the specific embodiment can refer to the above embodiment. Specifically, the magnetic induction lines generated by the magnetic units are distributed and diverged towards two sides, magnetic conduction pieces are arranged at two sides of the magnetic units, and the magnetic induction lines of the first magnetic unit 18 and the second magnetic unit 20 are respectively gathered in the magnetic conduction pieces, so that the magnetic induction lines close to the side surfaces of the magnetic units become dense, and the magnetic field strength is enhanced.
Preferably, the outer magnetic conductive member 24, the middle magnetic conductive member 16, the inner magnetic conductive member 26 and the fixing member 22 are integrally formed, and the outer magnetic conductive member 24, the middle magnetic conductive member 16 and the inner magnetic conductive member 26 are arranged on one side of the fixing member 22 to form an E-shaped structure. In other embodiments, the outer magnetic member 24, the middle magnetic member 16, the inner magnetic member 26, and the fixing member 22 may be separately connected, such as by an adhesive connection or a detachable connection.
Further, the outer surface of the outer magnetic conductive member 24 is flush with the outer surface of the fixing member 22, the inner surface of the inner magnetic conductive member 26 is flush with the inner surface of the fixing member 22, and the surfaces of the first magnetic ring set 12, the second magnetic ring set 14, the outer magnetic conductive member 24, the middle magnetic conductive member 16 and the inner magnetic conductive member 26 far away from the fixing member 22 are flush.
Referring to fig. 10 and 11, the magnetic assembly 10 has a first surface 28 and a second surface 30 opposite to each other in the thickness direction, wherein the magnetic pole of the first magnetic unit 18 on the first surface 28 is opposite to the magnetic pole of the second magnetic unit 20 on the first surface 28, the magnetic pole of the first magnetic unit 18 on the first surface 28 is opposite to the magnetic pole of the first magnetic unit 18 on the second surface 30, and the magnetic pole of the second magnetic unit 20 on the first surface 28 is opposite to the magnetic pole of the second magnetic unit 20 on the second surface 30. In this embodiment, the magnetic pole of the first magnetic unit 18 on the first surface 28 is S-pole, the magnetic pole of the second surface 30 is N-pole, the magnetic pole of the second magnetic unit 20 on the first surface 28 is N-pole, and the magnetic pole of the second surface 30 is S-pole.
In some embodiments, which are not shown, the second magnetic ring set 14 may further include a first magnetic ring and at least one second magnetic ring disposed around the periphery of the first magnetic ring, and an intermediate magnetic conductive member 16 is disposed between two adjacent magnetic rings.
In the embodiment shown in fig. 12, the circular cavity area defined by the first magnetic ring set 12 corresponds to a wireless charging area 32 of an electronic device or an accessory thereof, for example, the magnetic assembly 10 is mounted on a wireless charger, and a wireless charging coil 34 of the wireless charger can be disposed in the wireless charging area 32. The inner magnetic conductive member 26 can gather the magnetic induction wires inside the first magnetic ring set 12 in the inner magnetic conductive member 26, so as to reduce magnetic leakage, reduce diffusion of the magnetic induction wires into the inside of the circle, and reduce electromagnetic interference of the first magnetic ring set 12 to the intermediate wireless charging coil 34.
In the embodiment shown in fig. 13 and 14, a magnetic support 36 is provided, where the magnetic support 36 includes a support body 38 and a magnetic component 10, the support body 38 includes a base 40 and a fixing portion 42 connected to one side of the base 40, and the magnetic component 10 is disposed on the base 40, so that the magnetic support 36 enhances the magnetic absorption capability of the magnetic component 10 due to the configuration of the magnetic component, thereby increasing the stability of supporting connection.
More specifically, the fixing portion 42 and the base 40 are integrally formed, the fixing portion 42 is, for example, a plurality of clamping jaws arranged at intervals along a circumferential direction, threads are provided on outer walls of the clamping jaws, and the magnetic attraction bracket 36 can be fixedly connected to an adapted bracket seat through the fixing portion 42. The base body 40 is provided with a receiving groove 44 at a side facing away from the fixing portion 42, and the magnetic attraction assembly 10 is disposed in the receiving groove 44. The magnetic support 36 further includes a pressure plate 46, wherein the pressure plate 46 is disposed within the circular cavity region of the magnetic assembly 10 and is secured to the base 40 by screws 48. In this embodiment, the magnetic assembly 10 adopts the scheme shown in fig. 2, and the difference is that the fixing member 22 extends in the radial inward direction and exceeds the first magnetic ring set 12 by a predetermined distance to form an extension portion 50, correspondingly, a notch (not shown) is provided at the bottom side of the outer edge of the pressing plate 46, and the pressing plate 46 is installed to enable the extension portion 50 to be accommodated in the notch, so as to perform a pressing and fixing function on the magnetic assembly 10, and prevent the magnetic assembly from shaking in the axial direction a and the radial direction C. The bottom of the accommodating groove 44 is provided with a limiting block 54, the limiting hole 54 is placed along the radial direction, the inner edge of the extending part 50 corresponding to the limiting block 54 is provided with a limiting groove 56, and when the magnetic attraction assembly 10 is installed, at least part of the limiting block 54, for example, the radial outer end of the limiting block 54 is limited in the limiting groove 56, so that the magnetic attraction assembly 10 can be limited and prevented from rotating along the circumferential direction B.
In some embodiments, the magnetic bracket 36 may further include a wireless charging coil (not shown), and the magnetic assembly 10 is disposed on the periphery of the wireless charging coil, so that the magnetic bracket 36 has a wireless charging function, and can support and fix the electronic device and simultaneously wirelessly charge the electronic device.
Preferably, the magnetic bracket 36 further includes a cover plate 58 for shielding and decoration, and the cover plate 58 is disposed outside the accommodating groove 44. Optionally, an annular groove 60 is disposed at the periphery of the accommodating groove 44 on a side of the base body 40 facing away from the fixing portion 42, the cover 58 may be accommodated in the annular groove 60 by way of fitting, buckling, etc., and the outer surface of the cover 58 is flush with the outer surface of the base body 40.
In summary, the present utility model provides a magnetic assembly and a magnetic support, wherein an existing magnetic assembly is split into a first magnetic ring set, a middle magnetic conductive member and a second magnetic ring set which are sequentially distributed along a radial direction, wherein the directions of internal magnetic fields of the first magnetic ring set and the second magnetic ring set are both axial and opposite, i.e. one N pole and one S pole are not provided with a non-magnetic area, and from another angle, the existing non-magnetic area is removed, and the middle magnetic conductive member is provided, so that not only is a magnet material saved, but also cost is reduced, and the middle magnetic conductive member can have an effect of gathering magnetic induction lines, thereby enhancing magnetic field strength and enhancing magnetic force. On the premise of not increasing the width and thickness of the magnetic attraction component, the magnetic force lines generated by the first magnetic ring group and the magnetic force lines generated by the second magnetic ring group form a close loop through the middle magnetic conduction piece, so that compared with the magnetic ring group magnetized by a single body, the magnetic attraction strength of the magnetic attraction end can be increased.
The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed are illustrative and not restrictive. The scope of the utility model 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 (9)
1. The magnetic assembly is characterized by comprising a first magnetic ring group, a second magnetic ring group and a middle magnetic conduction piece, wherein the second magnetic ring group is positioned at the periphery of the first magnetic ring group, and the middle magnetic conduction piece is positioned between the first magnetic ring group and the second magnetic ring group; the magnetic assembly further comprises a fixing piece, and the first magnetic ring group and the second magnetic ring group are both fixed on one side of the fixing piece.
2. The magnetic attraction assembly of claim 1, wherein the first magnetic loop set includes a plurality of first magnetic elements arranged circumferentially, and the second magnetic loop set includes a plurality of second magnetic elements arranged circumferentially.
3. The magnetic assembly of any of claims 1-2, further comprising an outer magnetic conductive member disposed on a side of the second magnetic ring set remote from the middle magnetic conductive member.
4. The magnetic assembly of any of claims 1-2, further comprising an inner magnetically permeable member disposed on a side of the first magnetic ring set remote from the middle magnetically permeable member.
5. The magnetic assembly of any of claims 1-2, further comprising an inner magnetic conductive member and an outer magnetic conductive member, the outer magnetic conductive member being disposed on a side of the second magnetic loop set remote from the intermediate magnetic conductive member, the inner magnetic conductive member being disposed on a side of the first magnetic loop set remote from the intermediate magnetic conductive member.
6. The magnetic attraction assembly of claim 2, wherein the first magnetic unit has an internal magnetic field direction that is axial to the first magnetic loop group and the second magnetic unit has an internal magnetic field direction that is opposite to the internal magnetic field direction of the first magnetic unit.
7. A magnetic attraction assembly as claimed in claim 2, wherein the first magnetic element has the same width as the second magnetic element and/or the first magnetic element has the same number as the second magnetic element.
8. A magnetic bracket, comprising a bracket body and a magnetic component as claimed in any one of claims 1 to 7, wherein the bracket body comprises a base body and a fixing part connected to the base body, and the magnetic component is arranged on the base body.
9. The magnetically attractable bracket of claim 8 further comprising a wireless charging coil, the magnetically attractable assembly being disposed about a periphery of the wireless charging coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349369.4U CN220171864U (en) | 2023-05-30 | 2023-05-30 | Magnetic component and magnetic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349369.4U CN220171864U (en) | 2023-05-30 | 2023-05-30 | Magnetic component and magnetic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220171864U true CN220171864U (en) | 2023-12-12 |
Family
ID=89053367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321349369.4U Active CN220171864U (en) | 2023-05-30 | 2023-05-30 | Magnetic component and magnetic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220171864U (en) |
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2023
- 2023-05-30 CN CN202321349369.4U patent/CN220171864U/en active Active
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