Corrosion-resistant neodymium-iron-boron magnet

Abstract

The utility model provides a kind of corrosion-resistant neodymium iron boron magnet, including neodymium iron boron magnet, the countersunk hole is arranged on neodymium iron boron magnet, the countersunk hole is through the upper and lower two sides of neodymium iron boron magnet, and the lower hole diameter inner wall of all countersunk hole is provided with internal thread;Support bolt is installed in the countersunk hole, and the top of support bolt is provided with internal hexagonal slot hole.When using, countersunk hole is set in the four corners of neodymium iron boron magnet, and internal thread is set in the lower hole diameter of countersunk hole, while support bolt is set in countersunk hole and is threadedly connected with internal thread, when normally using, the upper and lower two ends of support bolt are flush with the upper and lower two sides of neodymium iron boron magnet, when neodymium iron boron magnet needs to be disassembled, support bolt is screwed down, so that the lower end of support bolt protrudes from the bottom of neodymium iron boron magnet and lifts neodymium iron boron magnet, thereby reducing the adsorption force between neodymium iron boron magnet and adsorption surface, and the effect of conveniently disassembling neodymium iron boron magnet is achieved.

Description

Technical Field

[0001] This utility model relates to the field of magnet technology, and in particular to a corrosion-resistant neodymium iron boron magnet. Background Technology

[0002] A magnet is a substance or material that can generate a magnetic field. Magnets have two poles: a magnetic north pole (N) and a magnetic south pole (S). The opposite poles of two magnets attract each other due to the magnetic field. Neodymium iron boron (NdFeB) magnets are a common type of magnet and are widely used in new energy vehicles, industrial production, medical devices, and consumer electronics.

[0003] Chinese Patent Publication Number:

[0004] CN 217982965 U discloses a utility model patent entitled "A Corrosion-Resistant Neodymium Iron Boron Magnet";

[0005] CN 216287820 U discloses a utility model patent entitled "A Corrosion-Resistant Neodymium Iron Boron Magnet";

[0006] Both of the above-mentioned utility models achieve the purpose of convenient disassembly and installation of the magnet by installing a lifting rod or handle on the magnet; however, in actual use, it has been found that when the magnet comes into contact with the adsorption surface, the attraction force gradually increases with the increase of the adsorption area and the magnet area, making it difficult to separate the magnet from the adsorbed object through the handle or other structures.

[0007] Therefore, this application proposes a corrosion-resistant neodymium iron boron magnet for facilitating the separation of the magnet from the adsorption surface. Utility Model Content

[0008] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a corrosion-resistant neodymium iron boron magnet to solve the problem of inconvenience in removing the magnet in the prior art.

[0009] To achieve the above and other related objectives, this utility model provides a corrosion-resistant neodymium iron boron magnet, including a neodymium iron boron magnet with countersunk holes provided on the neodymium iron boron magnet. The countersunk holes penetrate the upper and lower surfaces of the neodymium iron boron magnet, and the inner wall of the lower diameter of all countersunk holes is provided with internal threads.

[0010] A support bolt is installed in the countersunk hole. The top of the support bolt has an internal hexagonal slot. The length of the threaded rod of the support bolt is greater than the length of the lower hole of the countersunk hole. When the top of the support bolt is flush with the top of the NdFeB magnet, the bottom of the support bolt is flush with the bottom of the NdFeB magnet.

[0011] Preferably, the countersunk holes are respectively located at the four corners of the neodymium iron boron magnet, and the support bolts are respectively installed in each countersunk hole.

[0012] Preferably, the neodymium iron boron magnet is provided with two sets of handles on its upper part, and the handles are arched.

[0013] Preferably, the two ends of each set of handles are respectively located on the top of two adjacent support bolts.

[0014] Preferably, all the inner bottom of the hexagonal socket holes are provided with connecting threaded holes, and both ends of all the handles are provided with mounting holes, the mounting holes being adapted to the positions of the connecting threaded holes;

[0015] A fastener is installed in the threaded hole, and the fastener cooperates with the mounting hole to fix the handle.

[0016] Preferably, the outer surface of the neodymium iron boron magnet is provided with an anti-corrosion coating.

[0017] Preferably, the anti-corrosion coating includes an electroplated layer adhered to the outer surface of the neodymium iron boron magnet, wherein a polyurethane coating and a chlorinated rubber coating are sequentially disposed on the outer surface of the electroplated layer.

[0018] As described above, the corrosion-resistant neodymium iron boron magnet of this invention has the following beneficial effects:

[0019] 1. This utility model provides countersunk holes at the four corners of a neodymium iron boron magnet, with internal threads in the lower diameter of the countersunk holes. Support bolts are threaded into these countersunk holes and connected to the internal threads. During normal use, both ends of the support bolts are flush with the upper and lower surfaces of the neodymium iron boron magnet. When the neodymium iron boron magnet needs to be disassembled, the support bolts are screwed down, causing the lower end of the support bolts to protrude from the bottom of the neodymium iron boron magnet, thus lifting the magnet and reducing the attraction force between the magnet and the adsorption surface, achieving the effect of convenient disassembly of the neodymium iron boron magnet.

[0020] 2. This utility model improves the ease of disassembling and assembling neodymium iron boron magnets by setting handles on two adjacent support bolts, allowing the magnets to be picked up by holding the handles during disassembly.

[0021] 3. This utility model provides a connecting threaded hole at the bottom of the internal hexagonal slot and fixes the handle with fasteners that cooperate with the mounting hole. After the neodymium iron boron magnet is installed, the handle can be disassembled to reduce the overall space occupied and avoid the handle interfering with the use of the neodymium iron boron magnet.

[0022] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0023] Figure 1The diagram shown is a structural schematic of this utility model.

[0024] Figure 2 The diagram shown is a cross-sectional view of the countersunk hole of this utility model.

[0025] Figure 3 The diagram shown is a structural assembly diagram of this utility model.

[0026] Figure 4 The diagram shown is a structural schematic of the neodymium iron boron magnet of this utility model.

[0027] Figure 5 The diagram shown is a structural schematic of the support bolt of this utility model.

[0028] Figure 6 The diagram shown is a structural schematic of the anti-corrosion coating of this utility model.

[0029] Component designation explanation:

[0030] 1. Neodymium iron boron magnet; 11. Countersunk hole; 12. Internal thread; 13. Electroplating layer; 14. Polyurethane coating; 15. Chlorinated rubber coating;

[0031] 2. Support bolt; 21. Socket hexagonal recess; 22. Threaded connection hole;

[0032] 3. Handle; 31. Mounting hole;

[0033] 4. Fasteners. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0036] like Figures 1-4As shown, this utility model provides a corrosion-resistant neodymium iron boron magnet, including a neodymium iron boron magnet 1. The neodymium iron boron magnet 1 is provided with countersunk holes 11, which penetrate the upper and lower surfaces of the neodymium iron boron magnet 1. All countersunk holes 11 have internal threads 12 on the inner wall of the lower diameter.

[0037] A support bolt 2 is installed in the countersunk hole 11. The top of the support bolt 2 is provided with an internal hexagonal slot 21. The length of the threaded rod of the support bolt 2 is greater than the length of the lower hole of the countersunk hole 11. In normal use, the support bolt 2 is installed in the countersunk hole 11 by means of threaded connection. At this time, when the top of the support bolt 2 is flush with the top of the NdFeB magnet 1, the bottom of the support bolt 2 is flush with the bottom of the NdFeB magnet 1. When it is necessary to remove the NdFeB magnet 1 from the adsorbent, the support bolt 2 is screwed down so that the lower end of the support bolt 2 protrudes from the bottom of the NdFeB magnet 1, so that a gap is created between the NdFeB magnet 1 and the adsorbent, so that the NdFeB magnet 1 can be easily removed.

[0038] like Figure 3 and Figure 4 As shown, in some embodiments, the countersunk holes 11 of this utility model are respectively set at the four corners of the neodymium iron boron magnet 1, and the support bolts 2 are respectively installed in each countersunk hole 11. When disassembling the neodymium iron boron magnet 1, the support bolts 2 can be used to lift the neodymium iron boron magnet 1 from the four corners, further improving the convenience of disassembling the neodymium iron boron magnet 1.

[0039] like Figure 1 As shown, in some embodiments, the neodymium iron boron magnet 1 of this utility model is provided with two sets of handles 3 on its top, and the handles 3 are arched; when installing or removing the neodymium iron boron magnet 1, the neodymium iron boron magnet 1 can be picked up by holding the handles 3, which improves the convenience of use.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments, the two ends of each set of handles 3 of this utility model are respectively set on the top of two adjacent support bolts 2, so that the neodymium iron boron magnets 1 can be extracted from both ends, further improving convenience.

[0041] like Figure 3 and Figure 5 As shown, in some embodiments, all internal hexagonal slots 21 of this utility model are provided with connecting threaded holes 22 at their inner bottom, and all handles 3 are provided with mounting holes 31 at both ends. The mounting holes 31 are matched with the positions of the connecting threaded holes 22. Fasteners 4, such as bolts, are installed in the connecting threaded holes 22 for fixing. The fasteners 4 cooperate with the mounting holes 31 to fix the handles 3. When in use, the handles 3 can be easily disassembled and assembled to improve the convenience of using the neodymium iron boron magnet 1 and avoid the handles 3 causing interference in use.

[0042] like Figure 6 As shown, in some embodiments, the outer surface of the neodymium iron boron magnet 1 of this invention is provided with an anti-corrosion coating to improve the corrosion resistance of the neodymium iron boron magnet 1, thereby improving the durability of the neodymium iron boron magnet 1.

[0043] like Figure 6 As shown, in some embodiments, the anti-corrosion coating of this utility model includes an electroplated layer 13 adhered to the outer surface of the NdFeB magnet 1 to form a basic protective layer on the outer surface of the NdFeB magnet 1; the outer surface of the electroplated layer 13 is sequentially provided with a polyurethane coating 14 and a chlorinated rubber coating 15, wherein the polyurethane coating 14 has good adhesion, toughness, wear resistance and corrosion resistance, and is used to further improve corrosion resistance; the chlorinated rubber coating 15 dries quickly and has high hardness, which increases the strength of the NdFeB magnet 1 while providing corrosion resistance.

[0044] In summary, the corrosion-resistant NdFeB magnet of this invention features countersunk holes 11 at the four corners of the NdFeB magnet 1, with internal threads 12 in the lower diameter of the countersunk holes 11. Support bolts 2 are threaded into the countersunk holes 11 and connected to the internal threads 12. During normal use, both ends of the support bolts 2 are flush with the upper and lower surfaces of the NdFeB magnet 1. When disassembling the NdFeB magnet 1, the support bolts 2 are screwed down, causing the lower end of the support bolts 2 to protrude from the bottom of the NdFeB magnet 1, thus lifting the NdFeB magnet 1 and reducing the adsorption force between the NdFeB magnet 1 and the adsorption surface, achieving the effect of convenient disassembly of the NdFeB magnet 1.

[0045] This utility model improves the ease of disassembling and assembling the neodymium iron boron magnet 1 by setting a handle 3 on two adjacent support bolts 2, allowing the neodymium iron boron magnet 1 to be picked up by holding the handle 3 during disassembly.

[0046] This utility model provides a connecting threaded hole 22 at the bottom of the internal hexagonal slot hole 21, and fixes the handle 3 by fastener 4 cooperating with the mounting hole 31. After the neodymium iron boron magnet 1 is installed, the handle 3 can be disassembled to reduce the overall space occupied and to avoid the handle 3 interfering with the use of the neodymium iron boron magnet 1.

[0047] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0048] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A corrosion-resistant neodymium iron boron magnet, characterized in that, The device includes a neodymium iron boron magnet (1), which has a countersunk hole (11) that penetrates the upper and lower surfaces of the neodymium iron boron magnet (1). All countersunk holes (11) have internal threads (12) on their lower inner walls. A support bolt (2) is installed in the countersunk hole (11). The top of the support bolt (2) is provided with an internal hexagonal slot (21). The length of the threaded rod of the support bolt (2) is greater than the length of the lower hole of the countersunk hole (11). When the top of the support bolt (2) is flush with the top of the neodymium iron boron magnet (1), the bottom of the support bolt (2) is flush with the bottom of the neodymium iron boron magnet (1).

2. The corrosion-resistant NdFeB magnet according to claim 1, characterized in that: The countersunk holes (11) are respectively located at the four corners of the neodymium iron boron magnet (1), and the support bolts (2) are respectively installed in each countersunk hole (11).

3. The corrosion-resistant NdFeB magnet according to claim 2, characterized in that: Two sets of handles (3) are provided above the neodymium iron boron magnet (1), and the handles (3) are arched.

4. The corrosion-resistant NdFeB magnet according to claim 3, characterized in that: The two ends of each set of handles (3) are respectively set on the top of two adjacent support bolts (2).

5. The corrosion-resistant NdFeB magnet according to claim 4, characterized in that: All the internal hexagonal slots (21) are provided with connecting threaded holes (22) at their inner bottoms, and all the handles (3) are provided with mounting holes (31) at both ends, the mounting holes (31) and the connecting threaded holes (22) being matched in position; A fastener (4) is installed in the threaded hole (22), and the fastener (4) is used in conjunction with the mounting hole (31) to fix the handle (3).

6. The corrosion-resistant NdFeB magnet according to any one of claims 1-5, characterized in that: The outer surface of the neodymium iron boron magnet (1) is provided with an anti-corrosion coating.

7. The corrosion-resistant NdFeB magnet according to claim 6, characterized in that: The anti-corrosion coating includes an electroplated layer (13) attached to the outer surface of the neodymium iron boron magnet (1), and the outer surface of the electroplated layer (13) is sequentially provided with a polyurethane coating (14) and a chlorinated rubber coating (15).

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