Neodymium-iron-boron magnet combination capable of being positioned and spliced

Abstract

The utility model relates to a neodymium-iron-boron magnet combination capable of being positioned and spliced, which belongs to the technical field of neodymium-iron-boron magnets and comprises a main magnet and a spliced magnet, the main magnet comprises a bottom and a cylindrical portion, a through hole matched with the cylindrical portion is formed in the middle of the spliced magnet, a butt joint groove is formed in the lower end of the spliced magnet, and the bottom of the spliced magnet is provided with a through hole matched with the cylindrical portion. A butt joint column matched with the butt joint groove is arranged at the upper end of the bottom. The method has the advantages of being not prone to dislocation in splicing and high in splicing precision.

Description

Technical Field

[0001] The utility model relates to a neodymium iron boron magnet combination which can be positioned and spliced, and belongs to the technical field of neodymium iron boron magnets. Background Art

[0002] NdFeB permanent magnet material is a permanent magnet material based on the intermetallic compound Nd2Fe14B. NdFeB magnets are divided into sintered NdFeB magnets and bonded NdFeB magnets. Bonded NdFeB magnets are magnetic in all directions and corrosion-resistant. Sintered NdFeB magnets are easily corroded, so the surface needs to be plated, generally with zinc, nickel, environmentally friendly zinc, environmentally friendly nickel, nickel-copper-nickel, environmentally friendly nickel-copper-nickel, etc. Sintered NdFeB magnets are generally divided into axial magnetization and radial magnetization, depending on the required working surface.

[0003] A related Chinese patent with the announcement number CN201655461U discloses a neodymium iron boron magnet used in a motor, a sensor or a wind turbine. The magnet includes a copper layer, and a nickel layer is plated outside the copper layer. The nickel layer and the copper layer are matched and fixedly connected.

[0004] The inventor believes that when the two NdFeB magnets are spliced ​​together for use, the two magnets are directly adsorbed together, and sometimes the magnets will be misaligned due to the effect of magnetic force during splicing, which will lead to poor splicing accuracy of the two magnets. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides a neodymium iron boron magnet combination that can be positioned and spliced.

[0006] The utility model solves the above-mentioned technical problem with the following technical solution: a positionable and spliced ​​NdFeB magnet combination, comprising a main magnet and a spliced ​​magnet, wherein the main magnet comprises a bottom and a cylindrical portion, a through hole matching the cylindrical portion is provided in the middle of the spliced ​​magnet, a docking groove is provided at the lower end of the spliced ​​magnet, and a docking column matching the docking groove is provided at the upper end of the bottom.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows:

[0008] Furthermore, the splicing magnet is provided with a buffer spring 1 in the docking groove.

[0009] Furthermore, the bottom is provided with a bottom groove, the docking post is slidably connected in the bottom groove, and a second buffer spring that contacts the docking post is provided in the bottom groove.

[0010] Furthermore, a first abutment piece is provided at the lower end of the docking column, and a second abutment piece directly facing the first abutment piece is provided at the upper end of the bottom.

[0011] Furthermore, a blocking piece is provided on the bottom edge.

[0012] Furthermore, the columnar portion is provided with a protruding portion, and the spliced ​​magnet is provided with a convex groove matched with the protruding portion.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The present application sets a main magnet and a splicing magnet, and the main magnet includes a bottom and a cylindrical portion, a through hole adapted to the cylindrical portion is opened in the middle of the splicing magnet, a docking groove is opened at the lower end of the splicing magnet, and a docking column adapted to the docking groove is provided at the upper end of the bottom. When the splicing magnet and the main magnet need to be spliced, the docking groove at the lower end of the splicing magnet is aligned with the docking column at the upper end of the bottom, and the cylindrical portion is inserted into the through hole of the splicing magnet, so that the splicing of the main magnet and the splicing magnet can be realized, and the problem of misalignment during splicing can be reduced, thereby ensuring the accuracy of the splicing of the two main magnets and the splicing magnet;

[0015] 2. The present application provides a buffer spring in the docking slot. When the docking post is inserted into the docking slot, the buffer spring can play a certain buffering role between the docking slot and the docking post, thereby reducing the impact of the docking post on the splicing magnet, thereby providing a certain protection for the splicing magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a neodymium iron boron magnet combination that can be positioned and spliced ​​in an embodiment of the present application;

[0017] Figure 2 This is a structural schematic diagram of the protruding portion in the embodiment of the present application;

[0018] In the figure, 1, splicing magnet; 11, through hole; 2, main magnet; 21, bottom; 22, cylindrical part; 3, docking groove; 31, docking column; 32, buffer spring 1; 33, lower plate; 4, bottom groove; 41, buffer spring 2; 42, abutment plate 1; 43, abutment plate 2; 5, blocking plate; 51, protrusion; 52, protruding groove. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0021] like Figure 1 and Figure 2 As shown, a positionable spliced ​​NdFeB magnet combination includes a main magnet 2 and a spliced ​​magnet 1, and the main magnet 2 includes a bottom 21 and a cylindrical portion 22, the bottom 21 and the cylindrical portion 22 are formed, the cylindrical portion 22 is fixedly arranged at the upper end of the bottom 21, a through hole 11 adapted to the cylindrical portion 22 is opened in the middle of the spliced ​​magnet 1, a docking groove 3 is opened at the lower end of the spliced ​​magnet 1, and a docking column 31 adapted to the docking groove 3 is provided at the upper end of the bottom 21. The spliced ​​magnet 1 and the main magnet 2 need to be aligned. During splicing, the docking groove 3 at the lower end of the splicing magnet 1 is aligned with the docking column 31 at the upper end of the bottom 21, and the cylindrical portion 22 is inserted into the through hole 11 of the splicing magnet 1, so that the main magnet 2 and the splicing magnet 1 can be spliced, and the problem of misalignment during splicing can be reduced. At this time, the docking column 31 at the upper end of the bottom 21 is inserted into the docking groove 3 of the splicing magnet 1, which can further reduce the problem of misalignment during splicing, thereby ensuring the accuracy of splicing the two main magnets 2 and the splicing magnet 1.

[0022] like Figure 1 and Figure 2 As shown, the spliced ​​magnet 1 is provided with a buffer spring 32 in the docking groove 3. When the docking post 31 is inserted into the docking groove 3, the buffer spring 32 can play a certain buffering role between the docking groove 3 and the docking post 31. When the two magnets are close to each other, due to the instantaneous magnetic force becoming larger, the spliced ​​magnet 1 and the main magnet 2 will be docked together at an extremely fast speed, which is easy to cause damage to the spliced ​​magnet 1. The provision of the buffer spring 32 can reduce the impact of the docking post 31 on the spliced ​​magnet 1, thereby playing a certain protective role for the spliced ​​magnet 1; the lower end of the buffer spring 32 is provided with a lower piece 33. The provision of the lower piece 33 can increase the contact area between the docking post 31 and the buffer spring 32, thereby improving the buffering effect of the buffer spring 32.

[0023] like Figure 1 and Figure 2As shown, the bottom 21 is provided with a bottom groove 4, the docking column 31 is slidably connected in the bottom groove 4, and a buffer spring 2 41 is provided in the bottom groove 4 to conflict with the docking column 31. The bottom groove 4 is provided in the bottom 21 and the buffer spring 2 41 is provided, which can reduce the impact on the main magnet 2 when the spliced ​​magnet 1 is docked with the main magnet 2, and can play a certain protective role on the main magnet 2, thereby ensuring the service life of the main magnet 2; when the spliced ​​magnet 1 and the main magnet 2 are not spliced ​​together, the buffer spring 1 32 and the buffer spring 2 41 are both in a telescopic state, and when the main magnet 2 and the spliced ​​magnet 1 are spliced ​​together, the buffer spring 1 32 and the buffer spring 2 41 are both in a compressed state ( Figure 1 The state shown in the figure only represents the structure and does not represent the normal adsorption and splicing state).

[0024] like Figure 1 and Figure 2 As shown, a contact piece 1 42 is provided at the lower end of the docking column 31, and a contact piece 2 43 is provided at the upper end of the bottom 21 and is opposite to the contact piece 1 42. When the docking column 31 slides in the docking groove 3, the contact piece 1 42 and the contact piece 2 43 abut against each other. The cooperation between the contact piece 1 42 and the contact piece 2 43 can limit the docking column 31 and reduce the problem of the docking column 31 slipping out of the bottom groove 4. The contact piece 1 42 and the contact piece 2 43 are made of polymer materials. The contact piece 1 42 is fixedly bonded to the lower end of the docking column 31, and the contact piece 2 43 is fixedly bonded to the bottom 21.

[0025] like Figure 1 and Figure 2 As shown, a baffle 5 is provided on the edge of the bottom 21. When the splicing magnet 1 is spliced ​​on the upper end of the main magnet 2, the baffle 5 is located on the outside of the splicing magnet 1. The baffle 5 can play a certain blocking role on the splicing magnet 1, which can reduce the occurrence of splicing misalignment. At the same time, when the NdFeB magnet is transported, when the main magnet 2 and the splicing magnet 1 are subjected to force, there will be no misalignment between the main magnet 2 and the splicing magnet 1; the cylindrical portion 22 is provided with a protrusion 51, and the splicing magnet 1 is provided with a convex groove 52 adapted to the protrusion 51. The protrusion 51 and the convex groove 52 are provided with a fool-proof design. Because it is difficult to observe the docking column 31 and the docking groove 3 during splicing, it is easy to cause the docking column 31 and the docking groove 3 to be difficult to align quickly during splicing. Therefore, the protrusion 51 and the convex groove 52 are provided to facilitate quick observation of the correct splicing orientation, thereby achieving quick splicing while reducing splicing misalignment.

[0026] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A neodymium iron boron magnet combination that can be positioned and spliced, characterized in that: The invention comprises a main magnet (2) and a spliced ​​magnet (1), wherein the main magnet (2) comprises a bottom (21) and a columnar portion (22), a through hole (11) matching the columnar portion (22) is provided in the middle of the spliced ​​magnet (1), a docking groove (3) is provided at the lower end of the spliced ​​magnet (1), and a docking column (31) matching the docking groove (3) is provided at the upper end of the bottom (21).

2. The positionable and spliced ​​NdFeB magnet assembly according to claim 1, characterized in that: The spliced ​​magnet (1) is provided with a buffer spring (32) in the docking groove (3).

3. The positionable and spliced ​​NdFeB magnet assembly according to claim 1, characterized in that: The bottom (21) is provided with a bottom groove (4), the docking post (31) is slidably connected in the bottom groove (4), and a second buffer spring (41) is provided in the bottom groove (4) to abut against the docking post (31).

4. The positionable and spliced ​​NdFeB magnet assembly according to claim 3, characterized in that: A first abutment piece (42) is provided at the lower end of the docking column (31), and a second abutment piece (43) facing the first abutment piece (42) is provided at the upper end of the bottom (21).

5. The positionable and spliced ​​NdFeB magnet assembly according to claim 1, characterized in that: A blocking piece (5) is provided on the edge of the bottom (21).

6. The positionable and spliced ​​NdFeB magnet assembly according to claim 1, characterized in that: The columnar portion (22) is provided with a protruding portion (51), and the spliced ​​magnet (1) is provided with a protruding groove (52) matched with the protruding portion (51).

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