Magnetic arrangement structure for optimizing thickness of adhesive layer between Halbach magnets

Abstract

The utility model discloses a magnetic arrangement structure for optimizing the thickness of an adhesive layer between Halbach magnets, which comprises a magnet group, the magnet group comprises a first magnet, a second magnet, a third magnet and a fourth magnet which are arranged side by side from left to right, and the magnetizing directions are horizontally rightward, vertically upward, horizontally leftward and vertically downward in sequence; a plurality of fool-proof magnets are arranged below the magnet group at intervals, and the fool-proof magnets are a first magnet, a second magnet, a third magnet, a fourth magnet and a fifth magnet in sequence from left to right; the magnetizing direction of the first magnetic block is horizontally leftward, and the first magnetic block is located outside the left range below the magnet group; the second magnetic block is located at the right part below the first magnet, is spaced from the first magnetic block and is magnetized vertically upwards; the third magnetic block is positioned at the right part below the fourth magnet, and the magnetizing direction is vertically downward; the fourth magnetic block is close to the right side of the third magnetic block, and the magnetizing direction is vertically upward; the fifth magnetic block and the fourth magnetic block are spaced, and the magnetizing direction is vertically downward; the thickness of the adhesive layer between the magnets is optimized, and the risk of magnet breakage is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of Heilbeck magnet assembly, and in particular to a magnetic arrangement structure that optimizes the thickness of the adhesive layer between Heilbeck magnets. Background Technology

[0002] Heilbeck magnets are widely used in many fields. Heilbeck magnets are formed by arranging and bonding multiple neodymium iron boron magnets in different magnetization directions. Due to the magnetic force between the magnets, some magnets attract each other, resulting in a thin adhesive layer at the bonding point, while other magnets are opposite each other, resulting in a thicker adhesive layer at the bonding point. Bonding points with a thin adhesive layer are prone to breakage.

[0003] Therefore, this case arises from the need to optimize or change the magnetic forces between magnets during the assembly of Heilbeck magnets, thereby improving the thickness of the adhesive layer between each magnet and reducing the risk of breakage of Heilbeck magnets. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic arrangement structure that optimizes the thickness of the adhesive layer between Hellbeck magnets. The technical problem to be solved is to optimize the magnetic force between magnets and avoid the adhesive layer between magnets being too thin.

[0005] To achieve the above objectives, the solution of this utility model is: a magnetic arrangement structure for optimizing the thickness of the adhesive layer between Heilbeck magnets, including a magnet group, with a plurality of foolproof magnets arranged sequentially below the magnet group, the foolproof magnets being spaced apart from the magnet group, and the foolproof magnets being used to exert magnetic force on the magnet group;

[0006] The magnet assembly consists of four identical neodymium iron boron magnets arranged in a straight line, including the first magnet, the second magnet, the third magnet, and the fourth magnet arranged side by side from left to right, with the magnetization directions being horizontal to the right, vertical to the up, horizontal to the left, and vertical to the down, respectively.

[0007] There are five magnets to prevent fooling, from left to right: the first magnet, the second magnet, the third magnet, the fourth magnet, and the fifth magnet.

[0008] The magnetization direction of the first magnetic block is horizontal to the left, located outside the range on the lower left side of the magnet assembly;

[0009] The second magnetic block is located below the right side of the first magnet, spaced apart from the first magnetic block, and its magnetization direction is vertically upward;

[0010] The third magnetic block is located below the right side of the fourth magnet, and its magnetization direction is vertically downward.

[0011] The fourth magnetic block is located close to the right side of the third magnetic block, and its magnetization direction is vertically upward.

[0012] The fifth magnetic block is spaced apart from the fourth magnetic block, and the magnetization direction is vertically downward.

[0013] The first, third, fourth, and fifth magnetic blocks have the same specifications as any one of the magnets in the magnet group. The second magnetic block has a smaller horizontal dimension than the other magnetic blocks, but its vertical dimension is the same as the other magnetic blocks.

[0014] Furthermore, the spacing between the foolproof magnet and the magnet assembly is D1, where D1 = 6 mm.

[0015] Furthermore, the distance L1 between the right side of the first magnetic block and the left side of the first magnet is 27.5 mm;

[0016] The distance L2 between the left side of the second magnet and the left side of the first magnet is 6mm;

[0017] The distance L3 between the left side of the third magnetic block and the right side of the second magnetic block is 27mm;

[0018] The distance L4 between the left side of the fifth magnetic block and the left side of the third magnetic block is 32mm.

[0019] Furthermore, the first magnet, the second magnet, the third magnet, and the fourth magnet have a square structure.

[0020] After adopting the above solution, the beneficial effects of this utility model are as follows:

[0021] (1) Change the direction of the magnetic force on the second magnet, so that the original horizontal magnetic force to the right becomes horizontal to the left, which is the same as the direction of the horizontal magnetic force on the first magnet and opposite to the direction of the horizontal magnetic force on the third magnet. This prevents the second magnet from moving closer to the third magnet, thereby increasing the gap between the second and third magnets and making the adhesive layer thicker. This avoids the risk that the adhesive layer will be too thin and easily break when the second magnet moves closer to the third magnet.

[0022] (2) The direction of the horizontal magnetic force on the fourth magnet is changed, so that the original horizontal magnetic force to the left becomes horizontal to the right, which is the same as the direction of the horizontal magnetic force on the third magnet. This avoids the third magnet and the fourth magnet from getting close to each other, which would cause the gap between the third magnet and the fourth magnet to become smaller. Instead, it increases the gap between them, thereby increasing the thickness of the adhesive layer at that point. This avoids the risk of the adhesive layer between the third magnet and the fourth magnet breaking due to the adhesive layer being too thin.

[0023] (3) The horizontal leftward magnetic force on the first magnet was reduced, and the thickness of the adhesive layer between the first magnet and the second magnet was adjusted. Attached Figure Description

[0024] Figure 1 It is a proportional Heilbeck magnet arrangement structure.

[0025] Figure 2 It is a simulated magnetic force of each magnet in a proportional magnet assembly.

[0026] Figure 3 This is a 3D simulation diagram of the field strength of a comparative magnet assembly.

[0027] Figure 4 This utility model relates to a Heilbeck magnet arrangement structure.

[0028] Figure 5 This is a three-dimensional schematic diagram of the Heilbeck magnet arrangement structure of this utility model.

[0029] Figure 6 This is a schematic diagram showing the positional relationship between the various foolproof magnets and magnet groups of this novel invention.

[0030] Figure 7 This is a simulated magnetic force of each magnet in the magnet assembly of this utility model.

[0031] Figure 8 This is a 3D simulation diagram of the field strength of the magnet assembly of this utility model.

[0032] Label Explanation:

[0033] 100 - Magnet group, 200 - Foolproof magnet, 11 - First magnet, 12 - Second magnet, 13 - Third magnet, 14 - Fourth magnet, 21 - First magnetic block, 22 - Second magnetic block, 23 - Third magnetic block, 24 - Fourth magnetic block, 25 - Fifth magnetic block. Detailed Implementation

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Unless otherwise expressly defined, in the claims, description and accompanying drawings of this utility model, the use of directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" to indicate orientation or positional relationship is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0036] Example

[0037] This invention provides a magnetic arrangement structure that optimizes the thickness of the adhesive layer between Heilbeck magnets, such as... Figure 4-8As shown, the device includes a magnet assembly 100, and several anti-foolproof magnets 200 are arranged sequentially below the magnet assembly 100. The anti-foolproof magnets 200 are spaced apart from the magnet assembly 100. The anti-foolproof magnets 200 are used to exert magnetic force on the magnet assembly 100. In this specific embodiment, the interval between the anti-foolproof magnets 200 and the magnet assembly 100 is D1, where D1 = 6 mm.

[0038] Key points combined Figure 4-5 As shown, the horizontal left-right direction is the X direction, and the horizontal up-down direction is the Y direction. The magnet group 100 consists of four neodymium iron boron magnets of the same specifications arranged in a straight line, including the first magnet 11, the second magnet 12, the third magnet 13 and the fourth magnet 14 arranged side by side from left to right, and the magnetization direction is horizontal to the right, vertical to the up, horizontal to the left and vertical to the down. The first magnet 11, the second magnet 12, the third magnet 13 and the fourth magnet 14 are square structures. Specifically, the size of each magnet is 10mm×10mm×10mm.

[0039] Key points combined Figure 4 As shown, there are five foolproof magnets 200, which are, from left to right, the first magnetic block 21, the second magnetic block 22, the third magnetic block 23, the fourth magnetic block 24 and the fifth magnetic block 25;

[0040] The magnetization direction of the first magnetic block 21 is horizontal to the left, located outside the range on the left side below the magnet group 100;

[0041] The second magnetic block 22 is located on the lower right side of the first magnet 11, spaced apart from the first magnetic block 21, and its magnetization direction is vertically upward;

[0042] The third magnetic block 23 is located below the right side of the fourth magnet 14, and its magnetization direction is vertically downward.

[0043] The fourth magnetic block 24 is located close to the right side of the third magnetic block 23, and its magnetization direction is vertically upward.

[0044] The fifth magnetic block 25 is spaced apart from the fourth magnetic block 24, and the magnetization direction is vertically downward.

[0045] The first magnetic block 21, the third magnetic block 23, the fourth magnetic block 24, and the fifth magnetic block 25 have the same specifications as any one of the magnets in the magnet group 100, all being 10mm×10mm×10mm. The second magnetic block 22 has a smaller horizontal dimension than the other magnetic blocks, but its vertical dimension is the same as the other magnetic blocks. Specifically, the second magnetic block 22 has a specification of 5mm×10mm×10mm, where 5mm is the dimension in the horizontal X direction.

[0046] Further focus on Figure 6 As shown, the distance L1 between the right side of the first magnetic block 21 and the left side of the first magnet 11 is 27.5 mm;

[0047] The distance L2 between the left side of the second magnetic block 22 and the left side of the first magnet 11 is 6mm;

[0048] The distance L3 between the left side of the third magnetic block 23 and the right side of the second magnetic block 22 is 27mm;

[0049] The distance L4 between the left side of the fifth magnetic block 25 and the left side of the third magnetic block 23 is 32mm.

[0050] Comparative Example

[0051] like Figure 1 As shown, the magnet arrangement structure of the comparative magnet assembly 100 is the same as that of the magnet assembly 100 in the embodiment. The difference between the comparative and the embodiment is that the foolproof magnet 200 is not provided.

[0052] Figure 2 To simulate the magnetic forces of each magnet in the comparative magnet group 300, the simulation was specifically generated using Ansys software. Force1 represents the magnetic force acting on the first magnet 31, Force2 on the second magnet 32, Force3 on the third magnet 33, and Force4 on the fourth magnet 34. Each magnet also includes forces acting in the X, Y, and Z directions. F(y) represents the force of a single magnet in the Y direction, F(x) represents the force of a single magnet in the X direction, and F(z) represents the force of a single magnet in the Z direction. The unit is newton, specifically Newtons (N). The "-" before the values ​​in the figure indicates a negative direction; when the force is in the X direction, it is represented as horizontal to the left.

[0053] Figure 7 In this embodiment, the magnetic forces of each magnet in the magnet assembly 100 are simulated using Ansys software. Force1 represents the magnetic force of the first magnet 11, Force2 represents the magnetic force of the second magnet 12, Force3 represents the magnetic force of the third magnet 13, and Force4 represents the magnetic force of the fourth magnet 13. Each magnet also has forces in the X, Y, and Z directions. F(y) represents the force of a single magnet in the Y direction, F(x) represents the force of a single magnet in the X direction, and F(z) represents the force of a single magnet in the Z direction.

[0054] Table 1 is a comparison table of the magnetic field forces exerted on each magnet in the horizontal X direction in the two groups of Hellbeck magnets in the embodiment and the comparative example.

[0055]

[0056] As shown in Table 1, in the comparative example, in magnet assembly 300, the magnetic force on the first magnet 31 is opposite to that on the second magnet 32, causing them to move away from each other and increasing the distance between them. This results in a thicker first adhesive layer between the first magnet 31 and the second magnet 32. The magnetic force on the second magnet 32 ​​is in the same direction as that on the third magnet 33, allowing the second magnet 32 ​​to move closer to the third magnet 33, thus reducing the distance between them. This results in a thinner second adhesive layer between the second magnet 32 ​​and the third magnet 33, increasing the risk of breakage. The magnetic force on the third magnet 33 is directed towards the fourth magnet 34, and the magnetic force on the fourth magnet 34 is directed towards the third magnet 33, causing them to move closer together. This results in a thinner third adhesive layer between the third magnet 33 and the fourth magnet 34, increasing the risk of breakage. This leads to both the second and third adhesive layer thicknesses being less than the first adhesive layer thickness, resulting in uneven adhesive layer thickness.

[0057] Table 1 also shows that the magnet assembly 100 in the embodiment has the same arrangement structure as the magnet assembly 300 in the comparative example. However, by adding five foolproof magnets in the embodiment, the magnetic force on the first magnet 11 in the magnet assembly 100 decreases from 3.707N to 1.1927N, while the direction of the magnetic force remains unchanged. The magnetic force on the second magnet 12 changes from horizontal to the right to horizontal to the left, and the direction is the same as the direction of the magnetic force on the first magnet 11. At the same time, the magnitude of the magnetic force on the second magnet 12 decreases. The magnetic force on the third magnet 13 decreases from 4.264N to 4.0603N, while the direction of the magnetic force remains unchanged. This prevents the second magnet 12 from moving closer to the third magnet 13, thus avoiding the problem of the second adhesive layer becoming thinner. The direction of the magnetic force on the fourth magnet 14 changes from horizontal to the left to horizontal to the right, which is consistent with the direction of the magnetic force on the third magnet 13. This also prevents the fourth magnet 14 from moving closer to the third magnet 13, thus avoiding the problem of the third adhesive layer becoming thinner. This effectively improves the thickness of each adhesive layer, reduces the risk of the adhesive layer being too thin and thus easily breaking. In addition, the reduced magnetic force on the first magnet 11 also makes the thickness of the first adhesive layer thinner, preventing the first adhesive layer from being too thick and balancing the thickness of the adhesive layers in various places.

[0058] Figure 3 The 3D simulation field strength of each magnet in the magnet assembly 300 is shown as a comparative example, simulated using Ansys software.

[0059] Figure 8 The following is a 3D simulation diagram of the field strength of each magnet in the magnet assembly 100, simulated using Ansys software, as an example.

[0060] from Figure 3 and Figure 8 It can be seen that the maximum magnetic field strength produced by the comparative example is 1.9339 × 10⁻⁶. 6 The maximum magnetic field strength generated in the example is 2.7634 × 10 A / m. 6 In the embodiment, after adding five foolproof magnets, the magnetic force of each magnet in the magnetic assembly 100 is dispersed from both sides, avoiding the problem of magnets attracting each other and causing the adhesive layer thickness to decrease. This effectively optimizes the gap between each magnet, thereby ensuring the thickness of the adhesive layer and effectively reducing the risk of breakage of the assembled Heilbeck magnet.

[0061] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A magnetic arrangement structure with optimized adhesive layer thickness between Hellbeck magnets, characterized in that: It includes a magnet assembly (100), and several foolproof magnets (200) are arranged in sequence below the magnet assembly (100). The foolproof magnets (200) are spaced apart from the magnet assembly (100), and the foolproof magnets (200) are used to exert magnetic force on the magnet assembly (100). The magnet assembly (100) consists of four neodymium iron boron magnets of the same specifications arranged in a straight line, including the first magnet (11), the second magnet (12), the third magnet (13) and the fourth magnet (14) arranged side by side from left to right, and the magnetization directions are horizontal to the right, vertical to the up, horizontal to the left and vertical to the down in sequence. There are five foolproof magnets (200), which are, from left to right, the first magnetic block (21), the second magnetic block (22), the third magnetic block (23), the fourth magnetic block (24) and the fifth magnetic block (25); The magnetization direction of the first magnetic block (21) is horizontal to the left, located outside the range on the left side below the magnet group (100); The second magnetic block (22) is located on the right side below the first magnet (11), spaced apart from the first magnetic block (21), and its magnetization direction is vertically upward; The third magnetic block (23) is located on the right side below the fourth magnet (14), and its magnetization direction is vertically downward; The fourth magnetic block (24) is close to the right side of the third magnetic block (23), and its magnetization direction is vertically upward; The fifth magnetic block (25) is spaced apart from the fourth magnetic block (24), and the magnetization direction is vertically downward; The first magnetic block (21), the third magnetic block (23), the fourth magnetic block (24), and the fifth magnetic block (25) have the same specifications as any one of the magnets in the magnet group (100). The second magnetic block (22) has a horizontal dimension smaller than the other magnetic blocks, and its vertical dimension is the same as the dimensions of the other magnetic blocks.

2. The magnetic arrangement structure with optimized adhesive layer thickness between Hellbeck magnets according to claim 1, characterized in that: The spacing between the foolproof magnet (200) and the magnet group (100) is D1, where D1 = 6 mm.

3. The magnetic arrangement structure with optimized adhesive layer thickness between Hellbeck magnets according to claim 2, characterized in that: The distance L1 between the right side of the first magnetic block (21) and the left side of the first magnet (11) is 27.5 mm; The distance L2 between the left side of the second magnet (22) and the left side of the first magnet (11) is 6mm; The distance L3 between the left side of the third magnetic block (23) and the right side of the second magnetic block (22) is 27mm; The distance L4 between the left side of the fifth magnetic block (25) and the left side of the third magnetic block (23) is 32mm.

4. The magnetic arrangement structure with optimized adhesive layer thickness between Hellbeck magnets according to claim 1, characterized in that: The first magnet (11), the second magnet (12), the third magnet (13) and the fourth magnet (14) are square structures.

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