Arrangement structure of magnets

Abstract

The utility model discloses an arrangement structure of magnets, and relates to the technical field of Halbach array magnet assembly, a plurality of first single magnets are arranged at intervals along the left-right direction, two second single magnets are embedded between adjacent first single magnets, the length and the width of each second single magnet are half of those of each first single magnet, the magnetic pole direction of each first single magnet is upward, and the magnetic pole direction of each second single magnet is upward. The magnetic pole of the second single magnet located on the left side deflects by 45 degrees towards the upper left, and the magnetic pole of the second single magnet located on the right side deflects by 45 degrees towards the upper right; the length and the width of the third single magnets are the same as those of the first single magnets, the arrangement mode of the third single magnets is the same as that of the first single magnets, the two fourth single magnets are embedded between the adjacent third single magnets, the length and the width of each fourth single magnet are half of those of each third single magnet, and the magnetic pole direction of each third single magnet faces upwards; the magnetic pole of the fourth single magnet located on the left side deflects by 45 degrees towards the upper left, and the magnetic pole of the second single magnet located on the right side deflects by 45 degrees towards the upper right. The magnetic field generated by the utility model is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of Halbach array magnet assembly, and particularly relates to an arrangement structure of magnets. Background Art

[0002] As Figure 1 shown, in the current magnet arrangement structure, the magnetic field generated between the magnetic conductors 2' is not uniform enough. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an arrangement structure of magnets, which overcomes the above defects and can make the magnetic field generated by the magnets between the magnetic conductors more uniform.

[0004] To achieve the above purpose, the solution of the utility model is as follows:

[0005] An arrangement structure of magnets includes a first magnetic conductor and a second magnetic conductor. The first magnetic conductor and the second magnetic conductor are arranged at intervals up and down, and the second magnetic conductor is located above the first magnetic conductor. A first single magnet and a second single magnet are arranged on the upper side of the first magnetic conductor. A plurality of first single magnets are arranged at intervals in the left-right direction. Two second single magnets are embedded side by side between two adjacent first single magnets. The length and width of the second single magnet are both one-half of those of the first single magnet. The magnetic pole direction of the first single magnet is upward. Between adjacent first single magnets, the magnetic pole direction of the second single magnet on the left side deflects 45° to the upper left, and the magnetic pole direction of the second single magnet on the right side deflects 45° to the upper right. A third single magnet and a fourth single magnet are arranged on the lower side of the second magnetic conductor. The third single magnet has the same length and width as the first single magnet, and its arrangement mode is the same as that of the first single magnet. Two fourth single magnets are embedded side by side between two adjacent third single magnets. The length and width of the fourth single magnet are both one-half of those of the third single magnet. The magnetic pole direction of the third single magnet is upward. Between adjacent third single magnets, the magnetic pole direction of the fourth single magnet on the left side deflects 45° to the upper left, and the magnetic pole direction of the second single magnet on the right side deflects 45° to the upper right. The first single magnet and the third single magnet correspond to each other up and down, and the second single magnet and the fourth single magnet correspond to each other up and down.

[0006] Furthermore, the first magnetic conductor and the second magnetic conductor have the same length and width, and the length of the first magnetic conductor is greater than the total length of the first single magnet and the second single magnet thereon. The length of the second magnetic conductor is greater than the total length of the third single magnet and the fourth single magnet thereon.

[0007] Furthermore, the length of the first magnetic conductor is 34 mm and the width is 1 mm.

[0008] Furthermore, the length of the first single magnet is 1.5 mm and the width is 3 mm.

[0009] Further, the number of the first single magnets and the third single magnets is ten each.

[0010] Further, the second single magnets and the fourth single magnets have the same length and width.

[0011] Further, the length of the second single magnet is 0.75 mm and the width is 1.5 mm.

[0012] Further, the number of the second single magnets and the fourth single magnets is twenty each.

[0013] Further, the first single magnets, the second single magnets, the third single magnets and the fourth single magnets are all neodymium iron boron magnets.

[0014] Further, the first single magnets and the second single magnets have the same thickness, and the third single magnets and the fourth single magnets have the same thickness.

[0015] After adopting the above solution, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, a first single magnet and a second single magnet are arranged on the upper side of the first magnetic conductor. A plurality of first single magnets are arranged at intervals in the left - right direction. Two second single magnets are embedded side by side between two adjacent first single magnets. The length and width of the second single magnet are both half of those of the first single magnet. The magnetic pole direction of the first single magnet is upward. Between adjacent first single magnets, the magnetic pole direction of the second single magnet on the left side deflects 45° to the upper left, and the magnetic pole direction of the second single magnet on the right side deflects 45° to the upper right. And a third single magnet and a fourth single magnet are arranged on the lower side of the second magnetic conductor. The third single magnet has the same length and width as the first single magnet, and its arrangement mode is the same as that of the first single magnet. Two fourth single magnets are embedded side by side between two adjacent third single magnets. The length and width of the fourth single magnet are both half of those of the third single magnet. The magnetic pole direction of the third single magnet is upward. Between adjacent third single magnets, the magnetic pole direction of the fourth single magnet on the left side deflects 45° to the upper left, and the magnetic pole direction of the second single magnet on the right side deflects 45° to the upper right. The first single magnets and the third single magnets correspond to each other one by one up and down, and the second single magnets and the fourth single magnets correspond to each other one by one up and down. The present utility model can make the magnetic field generated by the magnets between the magnetic conductors more uniform. Description of the Drawings

[0017] Figure 1 is the structural diagram of magnet arrangement in the prior art;

[0018] Figure 2 is Figure 1 the 2D simulated field strength diagram of

[0019] Figure 3It is the magnet arrangement structure diagram of the present utility model;

[0020] Figure 4 is Figure 3 the 2D simulated field strength diagram of

[0021] Label description: 10, the first magnetic conductor; 11, the first single magnet; 12, the second single magnet; 20, the second magnetic conductor; 21, the third single magnet; 22, the fourth single magnet. Specific implementation manner

[0022] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 is a two-dimensional model of the magnet arrangement structure in the prior art. Twenty single magnets 1' with the same length (L0 = 3 mm) and width (Q0 = 3 m) are arranged in two rows along the straight line direction. The distance between the two rows of single magnets 1' is Q2 = 16 mm; the total length of a single row of single magnets 1' is 10 * L0 = 30 mm. A magnetic conductor 2' with a length (L1 = 34 mm) and width (Q1 = 1 mm) is added above the single magnet 1'. The magnetic conductor 2' is 2 mm away from the top edge (L2) of the single magnet 1'; the magnetic pole directions of the twenty single magnets 1' are Figure 1 the arrow directions in Figure 2 is the 2D simulated field strength of the magnet arrangement structure in the prior art. It can be seen from Figure 2 that the maximum value of the field strength is H = 9.2893×10 5 A / m; Figures 1 to 4 The arrow directions in

[0024] such as Figures 3 to 4As shown, the present utility model provides an arrangement structure of magnets, including a first magnetic conductor 10 and a second magnetic conductor 20. The first magnetic conductor 10 and the second magnetic conductor 20 are arranged at intervals up and down, and the second magnetic conductor 20 is located above the first magnetic conductor 10. On the upper side of the first magnetic conductor 10, there are a first single magnet 11 and a second single magnet 12. A plurality of first single magnets 11 are arranged at intervals in the left-right direction. Two second single magnets 12 are embedded side by side between two adjacent first single magnets 11. The length and width of the second single magnet 12 are both half of those of the first single magnet 11. The magnetic pole direction of the first single magnet 11 is upward. Between adjacent first single magnets 11, for the second single magnet 12 on the left side, the magnetic pole direction deflects 45° to the upper left, and for the second single magnet 12 on the right side, the magnetic pole direction deflects 45° to the upper right. On the lower side of the second magnetic conductor 20, there are a third single magnet 21 and a fourth single magnet 22. The third single magnet 21 has the same length and width as the first single magnet 11, and its arrangement mode is the same as that of the first single magnet 11. Two fourth single magnets 22 are embedded side by side between two adjacent third single magnets 21. The length and width of the fourth single magnet 22 are both half of those of the third single magnet 21. The magnetic pole direction of the third single magnet 21 is upward. Between adjacent third single magnets 21, for the fourth single magnet 22 on the left side, the magnetic pole direction deflects 45° to the upper left, and for the second single magnet 12 on the right side, the magnetic pole direction deflects 45° to the upper right. The first single magnet 11 and the third single magnet 21 correspond to each other up and down, and the second single magnet 12 and the fourth single magnet 22 correspond to each other up and down, so that the magnetic field generated by the present utility model is more uniform.

[0025] Furthermore, the first magnetic conductor 10 and the second magnetic conductor 20 have the same length and width, and the length of the first magnetic conductor 10 is greater than the total length of the first single magnet 11 and the second single magnet 12 thereon. The length of the second magnetic conductor 20 is greater than the total length of the third single magnet 21 and the fourth single magnet 22 thereon.

[0026] Preferably, as Figure 3As shown, the length of the first magnetic conductor 10 is 34 mm (i.e., L1 = 14 mm), the width is 1 mm (i.e., Q1 = 1 mm), the length of the first single magnet 11 is 1.5 mm (i.e., L4 = 1.5 mm), the width is 3 mm (i.e., Q0 = 3 mm). The number of the first single magnets 11 and the third single magnets 21 is ten each. The second single magnet 12 and the fourth single magnet 22 have the same length and width. The length of the second single magnet 12 is 0.75 mm (i.e., L3 = 0.75 mm), the width is 1.5 mm (i.e., Q3 = 1.5 mm). The number of the second single magnets 12 and the fourth single magnets 22 is twenty each. The first single magnet 11 and the second single magnet 12 have the same thickness, and the third single magnet 21 and the fourth single magnet 22 have the same thickness. Since the number of the second single magnets 12 is twenty and the number of the first single magnets 11 is ten, there are two second single magnets 12 not between two adjacent first single magnets 11, specifically on the right side of the first single magnet 11 at the end of the spaced arrangement. Similarly, there are two fourth single magnets 22 not between two adjacent third single magnets 21, specifically on the right side of the third single magnet 21 at the end of the spaced arrangement;

[0027] Compared with Figure 1 when the thickness of all the single magnets in the present invention is the same as that of the single magnets in the prior art, the total amount of the single magnets used in the preferred embodiment of the present invention is three - quarters of the total amount of the single magnets used in the prior art, which is one - quarter less than that in the prior art, reducing the usage of the single magnets. However, as Figure 4 shown, while reducing the usage of the single magnets, the magnetic field generated between the first magnetic conductor 10 and the second magnetic conductor 20 in the present invention is more uniform than that in the prior art. And as Figure 4 shown in, the maximum value of the magnetic field strength of the present invention is H = 1.0007×10 6 A / m, which is greater than Figure 2 the maximum value of the magnetic field strength shown in the prior art in. Therefore, the magnet arrangement structure of the present invention can also increase the magnetic field strength.

[0028] Specifically, the first single magnet 11, the second single magnet 12, the third single magnet 21, and the fourth single magnet 22 are all neodymium - iron - boron magnets.

[0029] To further illustrate the embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments and can be used to explain the operating principle of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] Meanwhile, the front, rear, left, right and other directions involved in this embodiment are only for reference of a direction and do not represent the directions in actual use. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] The above are only the preferred embodiments of the present utility model and do not limit the design of this case. All equivalent changes made according to the key design of this case fall within the protection scope of this case.

Claims

1. An arrangement structure of magnets, characterized in that: It includes a first magnetic conductor and a second magnetic conductor. The first magnetic conductor and the second magnetic conductor are arranged at intervals vertically, and the second magnetic conductor is located above the first magnetic conductor; On the upper side of the first magnetic conductor, there are a first single magnet and a second single magnet. Multiple first single magnets are arranged at intervals in the left - right direction. Two second single magnets are embedded side by side between two adjacent first single magnets. The length and width of the second single magnet are both half of those of the first single magnet. The magnetic pole direction of the first single magnet is upward. Between adjacent first single magnets, the magnetic pole direction of the second single magnet on the left deflects 45° upward to the left, and the magnetic pole direction of the second single magnet on the right deflects 45° upward to the right; On the lower side of the second magnetic conductor, there are a third single magnet and a fourth single magnet. The third single magnet has the same length and width as the first single magnet, and its arrangement is the same as that of the first single magnet. Two fourth single magnets are embedded side by side between two adjacent third single magnets. The length and width of the fourth single magnet are both half of those of the third single magnet. The magnetic pole direction of the third single magnet is upward. Between adjacent third single magnets, the magnetic pole direction of the fourth single magnet on the left deflects 45° upward to the left, and the magnetic pole direction of the second single magnet on the right deflects 45° upward to the right. The first single magnet and the third single magnet correspond to each other vertically, and the second single magnet and the fourth single magnet correspond to each other vertically.

2. The arrangement structure of a magnet according to claim 1, characterized in that: The first magnetic conductor and the second magnetic conductor have the same length and width, and the length of the first magnetic conductor is greater than the total length of the first single magnet and the second single magnet on it. The length of the second magnetic conductor is greater than the total length of the third single magnet and the fourth single magnet on it.

3. The arrangement structure of a magnet according to claim 2, characterized in that: The length of the first magnetic conductor is 34 mm and the width is 1 mm.

4. The arrangement structure of a magnet according to claim 2, characterized in that: The length of the first single magnet is 1.5 mm and the width is 3 mm.

5. The arrangement structure of a magnet according to claim 4, characterized in that: The number of both the first single magnet and the third single magnet is ten.

6. The arrangement structure of a magnet according to claim 2, wherein: The second single magnet and the fourth single magnet have the same length and width.

7. The arrangement structure of a magnet according to claim 6, characterized in that: The length of the second single magnet is 0.75 mm and the width is 1.5 mm.

8. The arrangement structure of a magnet as described in claim 7, characterized in that: The number of both the second single magnet and the fourth single magnet is twenty.

9. The arrangement structure of a magnet according to claim 1, characterized in that: The first single magnet, the second single magnet, the third single magnet and the fourth single magnet are all neodymium - iron - boron magnets.

10. The arrangement structure of a magnet according to claim 1, characterized in that: The thickness of the first single magnet and the second single magnet is the same, and the thickness of the third single magnet and the fourth single magnet is the same.

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