Neodymium-iron-boron magnet assembly for easy installation

Abstract

The utility model relates to wireless charging technical field especially discloses a neodymium iron boron magnet assembly convenient to install, including adsorption unit and with adsorption unit cooperation use's positioning installation unit, adsorption unit includes magnet module, with magnet module cooperation use's magnetic conduction part and flexible patch, magnet module sets up one side of magnetic conduction part, the flexible patch sets up one side of magnetic conduction part and magnet module is away, positioning installation unit is used for bearing adsorption unit and guiding adsorption unit with external carrier alignment installation, adsorption unit is positioned on external electronic product via magnet module adsorption, through the setting of flexible patch, can adapt to various curved surfaces or irregular surfaces of external electronic product, significantly improve the installation adhesion, solved the difficult problem of traditional assembly on the special-shaped surface installation, the cooperation of magnetic conduction part and magnet module strengthens magnetic adsorption force, effectively improved the structural stability of assembly whole, reduced the falling risk in the use process.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, and in particular discloses a neodymium iron boron magnet assembly that is easy to install. Background Technology

[0002] Existing neodymium iron boron magnet modules often face problems of inconvenient installation and insufficient stability when installed in external electronic products. Traditional components often lack flexible structures that adapt to the surface of electronic products, making it difficult to fit tightly on curved or irregular surfaces, thus affecting the magnetic adsorption effect. At the same time, the connection methods between the various parts of the components are not reasonable enough, making them prone to detachment or displacement. Furthermore, the lack of convenient positioning and fixing mechanisms during installation increases the assembly difficulty and fails to meet the needs of electronic products for efficient and stable installation of magnet modules. These problems are particularly prominent in scenarios that require rapid assembly and reliable fixation. Utility Model Content

[0003] In order to overcome the problems of inconvenient installation and insufficient stability of existing neodymium iron boron magnet modules in wireless chargers, the purpose of this utility model is to provide a neodymium iron boron magnet assembly that is easy to install.

[0004] To achieve the above objectives, this utility model provides an easy-to-install neodymium iron boron magnet assembly, comprising an adsorption unit and a positioning and mounting unit used in conjunction with the adsorption unit; the adsorption unit includes a magnet module, a magnetic conductive component used in conjunction with the magnet module, and a flexible patch, wherein the magnet module is disposed on one side of the magnetic conductive component, and the flexible patch is disposed on the side of the magnetic conductive component opposite to the magnet module, and the adsorption unit is positioned on an external electronic product by adsorption via the magnet module.

[0005] Furthermore, the easy-to-install neodymium iron boron magnet module also includes a first adhesive layer and a second adhesive layer. The magnetic conductive element is connected to the flexible patch via the first adhesive layer. The magnet module is magnetically adsorbed onto an external electronic product via the side of the flexible patch away from the first adhesive layer. The magnet module is connected to the side of the magnetic conductive element away from the flexible patch via the second adhesive layer.

[0006] Furthermore, the magnet module includes magnetic bodies arranged in a ring array. The magnetic bodies are made of rare-earth permanent magnet material, and multiple magnetic bodies are spaced apart so that two adjacent magnetic bodies will not squeeze each other and fall off when the magnet module is bent.

[0007] Furthermore, the flexible patch has a light-shielding layer, and the magnetic conductive element is arranged in a ring shape, with the cross-sectional area of ​​the ring magnetic conductive element in the radial direction being greater than or equal to the cross-sectional area of ​​the magnet module in the radial direction.

[0008] Furthermore, the magnetic conductive element is a soft magnetic alloy sheet, a stainless steel sheet, or a ferrite sheet.

[0009] Furthermore, the easy-to-install NdFeB magnet module also includes a first positioning film and a second positioning film. The adsorption unit is clamped and positioned between the first positioning film and the second positioning film. The first positioning film and the second positioning film are respectively used to support the flexible patch and the magnet module.

[0010] Furthermore, the edges and corners of both the first and second positioning films are chamfered to prevent the sharp corners or edges of the first and second positioning films from accidentally injuring the user.

[0011] Furthermore, both the first positioning film and the second positioning film are provided with at least two first positioning holes. The central axis of one first positioning hole coincides with the central axis of the reference circle of the multiple magnetic bodies in the annular array. The first positioning hole located in the middle of the magnet module is used to cooperate with the positioning pin of the external assembly fixture. The first positioning hole located on the outer edge of the magnet module is used to automatically feed the positioning film with the external feeding mechanism.

[0012] Furthermore, a light-shielding layer is provided on the side of the flexible patch away from the magnetic conductor, through which external light is reflected.

[0013] Furthermore, the outer surface of the magnet module is coated with an anti-corrosion coating, and the outer surface of the anti-corrosion coating is covered with a nano-hydrophobic layer.

[0014] Furthermore, the magnet module has a first texture on the side away from the magnetic conductor, and the flexible patch has a second texture on the side away from the magnetic conductor. The first texture and the second texture are multi-protrusion structures, spiral structures, wavy surfaces, or concave-convex surfaces.

[0015] The beneficial effects of this utility model are as follows: By setting up flexible patches, it can adapt to various curved or irregular surfaces of external electronic products, significantly improving the installation fit and solving the problem of difficult installation of traditional components on irregular surfaces; the cooperation between the magnetic conductive parts and the magnet module enhances the magnetic adsorption force, and combined with the connection effect of the first and second adhesive layers, it effectively improves the overall structural stability of the component and reduces the risk of falling off during use. The positioning hole design of the first and second positioning films, together with the external assembly fixture, enables quick and accurate installation, improving assembly efficiency. The chamfer design avoids accidental injury to the user during installation. The anti-corrosion coating and nano-hydrophobic layer of the magnet module enhance the corrosion resistance and water resistance of the components, extending their service life. The textured design of the magnet module and flexible patch surface not only enhances the grip during use but also improves the anti-slip performance to a certain extent. The overall solution meets the needs of electronic products for convenient installation, stable and reliable operation, and strong adaptability of the magnet module. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the first positioning film and the second positioning film of this utility model when they support the magnet module, the magnetic conductive component and the flexible patch. Figure 2 This is an exploded view of the easily installable neodymium iron boron magnet module of this utility model. Figure 3 This is a three-dimensional structural diagram of the magnet module of this utility model; Figure 4 This is a three-dimensional structural diagram of the easily installable neodymium iron boron magnet module of this utility model after partial cross-section. Figure 5 This is an exploded structural diagram of the magnet module, magnetic conductive component, and flexible patch of this utility model; Figure 6 This is a schematic diagram of the second texture of the flexible patch of this utility model; Figure 7 This is a cross-sectional schematic diagram of the magnetic body of this utility model.

[0017] The reference numerals in the figures include: 1. Magnet module; 2. Magnetic conductive component; 3. Flexible patch; 4. First adhesive layer; 5. Second adhesive layer; 6. First positioning film; 60. First positioning hole; 7. Second positioning film; 11. Magnetic body; 12. First texture; 13. Anti-corrosion coating; 14. Nano hydrophobic layer; 31. Light-shielding layer; 32. Second texture. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0019] Please see Figures 1 to 7 As shown, this utility model discloses an easy-to-install neodymium iron boron magnet assembly, comprising a magnet module 1, a magnetic conductive component 2, a flexible patch 3, a first positioning film 6, and a second positioning film 7. The magnet module 1 is located on one side of the front of the assembly structure and is composed of several rare-earth permanent magnets (preferably neodymium iron boron material) arranged in a ring array. Each magnetic body 11 is evenly spaced, giving the entire magnet module 1 a certain degree of flexibility to adapt to curved or irregular mounting surfaces, while preventing adjacent magnets from detaching or interfering with each other due to compression. The outer surface of the magnet module 1 is coated with an anti-corrosion coating 13, and a nano-hydrophobic layer 14 is also coated on top of this coating to improve overall durability and environmental adaptability.

[0020] The magnet module 1 and the magnetic conductor 2 are bonded together via a second adhesive layer 5. The magnetic conductor 2 is made of a high-permeability soft magnetic alloy, stainless steel sheet, or ferrite material. Its annular structure has a radial cross-sectional area greater than or equal to that of the magnet module 1, ensuring effective collection and directional distribution of magnetic flux, thereby improving magnetic adsorption efficiency. The other side of the magnetic conductor 2 is bonded to the flexible patch 3 via a first adhesive layer 4. The first adhesive layer 4 and the second adhesive layer 5 can be made of double-sided hot melt adhesive tape or pressure-sensitive adhesive material, possessing moderate adhesion to ensure long-term stable connection after assembly, while also having moderate disassembly capability for easy maintenance or replacement.

[0021] The flexible patch 3 is located on the back of the component and is used to attach to the surface of external electronic devices. It is preferably made of flexible polymer materials such as PET or TPU. Its structure is provided with a light-shielding layer 31 to prevent external light from entering the magnet structure area through the gap of the magnetic conductor 2, avoiding photothermal interference, and improving the overall appearance consistency. The side of the flexible patch 3 facing away from the magnetic conductor 2 is also provided with an anti-slip texture structure (second texture 32). The second texture 32 is a raised structure, spiral structure, wavy surface, or concave-convex surface formed from the flexible patch surface. The light-shielding layer 31 is located above the second texture 32 to increase the friction between the patch and the device housing and enhance the attachment stability. At the same time, the side of the magnet module 1 facing away from the magnetic conductor 2 is also provided with a corresponding first texture 12, which forms a surface match with the structure of the flexible patch 3, so that the component as a whole has good anti-slip ability and tactile control performance.

[0022] Before leaving the factory, the entire component is assembled on a pair of positioning films. The first positioning film 6 is used to support the flexible patch 3, and the second positioning film 7 is used to support the magnet module 1. Both positioning films are made of transparent PET material, and the edges are processed by laser cutting or die-cutting technology to make the edges and corners rounded and chamfered to prevent users from being accidentally injured by sharp edges during handling, pressing or peeling.

[0023] Each of the two positioning films has a first positioning hole 60 at the radial center of the magnet module, and two more first positioning holes 60 are provided on both sides of the annular magnet module 1. The first positioning hole 60 at the center is used to cooperate with the positioning pin of the external tooling fixture during the assembly process, so that each set of magnet modules 1 can achieve precise positioning, uniform angle and consistent pressure during assembly and alignment. The two first positioning holes on both sides of the magnet module 1 are used to automatically feed the positioning film with the external feeding mechanism, effectively improving the yield and assembly efficiency on the automated production line.

[0024] In practical applications, automatic feeding mechanisms typically employ a clamping wheel or pin-feeding structure. The core components are two synchronously moving feeding positioning pins or feeding wheels. The distance between these two feeding pins perfectly matches the hole spacing of the two side positioning holes on the positioning film. The diameter of the feeding pins is slightly smaller than the hole diameter to ensure smooth insertion without significant wobble. Driven by a cylinder or stepper motor, the feeding pins reciprocate periodically along the feeding track. Once the feeding pins are inserted into the two edge positioning holes, the feeding action begins, and the feeding mechanism pushes the current film sheet, along with the magnet assembly it carries, one unit pitch along the assembly line to the next assembly station. Simultaneously, the next positioning film assembly behind it also relies on the friction and clamping action of the feeding pin insertion holes to achieve precise guidance and position synchronization, ensuring the entire feeding process is free of skewing and jamming.

[0025] During use, the installer can place the external electronic product casing (such as a wireless charging module, smart wearable terminal, etc.) on the positioning platform using the tooling platform, and then press the positioning film with the magnet module 1 onto the mounting surface. Through the cooperation of the positioning holes and positioning pins, the textured area on the flexible patch 3 is completely adhered to the device casing. The magnet module 1 is guided by the magnetic conductor 2 to focus its magnetism, forming a stable magnetic attraction structure between the flexible patch 3, the magnetic conductor 2, and the device's metal layer. Finally, the first positioning film 6 and the second positioning film 7 are peeled off to complete the entire mounting process.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A neodymium-iron-boron magnet assembly for easy installation, comprising an adsorption unit and a positioning and mounting unit used in cooperation with the adsorption unit; characterized in that: The adsorption unit includes a magnet module (1), a magnetic conductive component (2) used in conjunction with the magnet module (1), and a flexible patch (3). The magnet module (1) is disposed on one side of the magnetic conductive component (2), and the flexible patch (3) is disposed on the side of the magnetic conductive component (2) away from the magnet module (1). The positioning and mounting unit is used to support the adsorption unit and guide the adsorption unit to be aligned and installed with the external support component. The adsorption unit is adsorbed and positioned on the external electronic product via the magnet module (1).

2. The readily installable NdFeB magnet assembly of claim 1, wherein: The easy-to-install neodymium iron boron magnet assembly also includes a first adhesive layer (4) and a second adhesive layer (5). The magnetic conductive element (2) is connected to the flexible patch (3) via the first adhesive layer (4). The magnet module (1) is magnetically adsorbed onto an external electronic product via the side of the flexible patch (3) away from the first adhesive layer (4). The magnet module (1) is connected to the side of the magnetic conductive element (2) away from the flexible patch (3) via the second adhesive layer (5).

3. The easily installed NdFeB magnet assembly of claim 1, wherein: The magnet module (1) includes magnetic bodies (11) arranged in a ring array. The magnetic bodies (11) are made of rare earth permanent magnet material. Multiple magnetic bodies (11) are spaced apart so that two adjacent magnetic bodies (11) will not squeeze each other and fall off when the magnet module (1) is bent.

4. The easily installed NdFeB magnet assembly of claim 1, wherein: The positioning and mounting unit includes a first positioning film (6) and a second positioning film (7). The adsorption unit is sandwiched between the first positioning film (6) and the second positioning film (7). The first positioning film (6) and the second positioning film (7) are respectively used to carry the flexible patch (3) and the magnet module (1). The flexible patch (3), the magnetic conductor (2) and the magnet module (1) are located between the first positioning film (6) and the second positioning film (7).

5. The easily installed NdFeB magnet assembly of claim 4, wherein: The adsorption unit is provided in multiple sets, and the multiple sets of adsorption units are arranged in an array along the length direction of the first positioning film (6) and the second positioning film (7).

6. The easily installed NdFeB magnet assembly of claim 4, wherein: Both the first positioning film (6) and the second positioning film (7) are provided with at least two first positioning holes (60). One first positioning hole (60) is located in the middle of the magnet module (1), and the other first positioning hole (60) is located on the outer edge of the magnet module (1). The first positioning hole (60) located in the middle of the magnet module (1) is used to cooperate with the positioning pin of the external assembly fixture, and the first positioning hole (60) located on the outer edge of the magnet module (1) is used to realize the automatic feeding of the positioning film with the external feeding mechanism.

7. The easily installed NdFeB magnet assembly of claim 1, wherein: The flexible patch (3) has a light-shielding layer (31) on the side opposite to the magnetic conductor (2), and external light is reflected by the light-shielding layer (31).

8. The easily installable neodymium iron boron magnet assembly according to claim 7, characterized in that: The magnet module (1) has a first texture (12) on the side away from the magnetic conductor (2), and the flexible patch (3) has a second texture (32) on the side away from the magnetic conductor (2). The first texture (12) and the second texture (32) are multi-protrusion structures, spiral structures, wavy surfaces, or concave and convex surfaces.

9. The easily installed NdFeB magnet assembly of claim 1, wherein: The outer surface of the magnet module (1) is coated with an anti-corrosion coating (13), and the outer surface of the anti-corrosion coating (13) is covered with a nano-hydrophobic layer (14).

10. The easily installed NdFeB magnet assembly of claim 1, wherein: The magnetic conductive element (2) is a soft magnetic alloy sheet, a stainless steel sheet, or a ferrite sheet.

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