A permanent magnet magnetizing magnetic circuit mechanism and magnetizing component

Abstract

The invention relates to a permanent magnet magnetizing magnetic circuit mechanism and a magnetizing component, belonging to the technical field of permanent magnet magnetizing. The permanent magnet magnetizing magnetic circuit mechanism comprises a first permanent magnet, a second permanent magnet, a third permanent magnet, a fourth permanent magnet and a fifth permanent magnet. The two poles of the first permanent magnet and the third permanent magnet are arranged along the X-axis direction and the opposite ends are the same poles. The two poles of the second permanent magnet are arranged along the Z-axis direction. One end of the second permanent magnet is a magnetizing surface. The magnetic poles of the magnetizing surface are the same as the magnetic poles of the opposite ends of the first permanent magnet and the third permanent magnet. The fourth permanent magnet and the fifth permanent magnet are arranged on both sides of the second permanent magnet. The two poles of the fourth permanent magnet and the fifth permanent magnet are arranged along the Y-axis direction. The opposite ends of the fourth permanent magnet and the fifth permanent magnet are the same poles and the same as the magnetic poles of the magnetizing surface. By adopting the structure, two vertical Halbach magnetic circuit structures are formed in the X-axis and Y-axis directions, so that the magnetic field peak area superimposed on one end of the magnetizing surface of the second permanent magnet is more concentrated and the magnetic field intensity is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of permanent magnet magnetization, and in particular relates to a permanent magnet magnetization magnetic circuit mechanism and a magnetization component. Background Art

[0002] The diverse shapes of sintered NdFeB magnets and their mechanical properties determine that weak magnetization before saturation magnetization is a good magnetization method, which can greatly reduce the problem of missing corners caused by collisions during magnetization. There are currently two methods of weak magnetization used in the industry, one is weak magnetization with a small DC current, and the other is weak magnetization using a permanent magnet magnetizer. DC magnetization equipment consumes a lot of power and is unsafe. The permanent magnet magnetizer has a simple structure, does not require power consumption, and has an adjustable magnetic field. It can effectively reduce the damage, scratches, and marking line rubbed off caused by magnetization collisions. In addition, the permanent magnet magnetizer is a through magnetization, with a stable magnetic field and a stable charging effect. The phenomenon that some magnets are strongly charged and some magnets are weakly charged will not occur in DC magnetization. However, the magnetic field strength of the current permanent magnet magnetizer is relatively small, which makes it impossible to charge high coercive force thin-film magnets to a state where they can be attracted into a strip. The magnetic field strength in the magnetization area can only be enhanced by increasing the volume of the magnetization pole head, which is costly. As a result, high coercive force thin-film magnets are currently all magnetized in a pulse magnetization coil using a process of manual lamination, which is inefficient and labor-intensive.

[0003] Therefore, a permanent magnet magnetizing magnetic circuit mechanism and a magnetizing component with higher magnetic field strength for a permanent magnet magnetizing machine are in urgent need of appearance. Summary of the invention

[0004] The invention provides a permanent magnet magnetizing magnetic circuit mechanism and a magnetizing component, which are used to solve the technical problem of weak magnetic field intensity in the magnetizing area of ​​the permanent magnet magnetizing magnetic circuit mechanism in the prior art.

[0005] The present invention is achieved through the following technical scheme: a permanent magnet magnetizing magnetic circuit mechanism, comprising a first permanent magnet, a second permanent magnet and a third permanent magnet connected in sequence along the X-axis direction, the two poles of the first permanent magnet and the third permanent magnet are arranged along the X-axis direction and the opposite ends have the same poles, the two poles of the second permanent magnet are arranged along the Z-axis direction, one end of the second permanent magnet is a magnetizing surface, the magnetic poles of the magnetizing surface are the same as the magnetic poles of the opposite ends of the first permanent magnet and the third permanent magnet, and also includes a fourth permanent magnet and a fifth permanent magnet, the fourth permanent magnet and the fifth permanent magnet are arranged on both sides of the second permanent magnet, the two poles of the fourth permanent magnet and the fifth permanent magnet are arranged along the Y-axis direction, the opposite ends of the fourth permanent magnet and the fifth permanent magnet have the same poles and are the same as the magnetic poles of the magnetizing surface.

[0006] Further, to better implement the present invention, the first permanent magnet and the third permanent magnet have the same width in the Y-axis direction and are greater than the width of the second permanent magnet in the Y-axis direction. The second permanent magnet is connected to the first permanent magnet and the third permanent magnet in an "I" shape, and the fourth permanent magnet and the fifth permanent magnet are respectively embedded in the grooves on both sides of the second permanent magnet.

[0007] Further, to better implement the present invention, the end faces of the fourth permanent magnet and the fifth permanent magnet away from the second permanent magnet are flush with the first permanent magnet and the second permanent magnet.

[0008] Further, to better implement the present invention, the first permanent magnet, the second permanent magnet, the third permanent magnet, the fourth permanent magnet, and the fifth permanent magnet are bonded together as a whole by a strong structural adhesive.

[0009] A magnetizing assembly includes a mounting base and the permanent magnet magnetizing circuit mechanism. The mounting base is a "U"-shaped structural member formed by connecting a horizontal plate and two vertical plates, and the permanent magnet magnetizing circuit mechanism is bonded in the mounting base by a strong structural adhesive.

[0010] Further, to better implement the present invention, the magnetizing surface is arranged on the side背离 the horizontal plate and is flush with the end face of the vertical plate.

[0011] Further, to better implement the present invention, the number of the mounting bases is two, and the two mounting bases are symmetrically and spaced apart. Each mounting base is provided with a permanent magnet magnetizing circuit mechanism, and the magnetizing surfaces of the two permanent magnet magnetizing circuit mechanisms are arranged opposite to each other and have opposite magnetic poles.

[0012] Further, to better implement the present invention, the vertical plate is provided with bolt holes.

[0013] The present invention has the following beneficial effects compared with the prior art:

[0014] It should be noted that in the translation of "进一步地,为了更好地实现本发明,所述充磁面朝背离横板的一侧设置且与所述立板的端面齐平。 ", there is a possible error in the original Chinese text. The part "背离" is not a very common or accurate expression in this context. A more appropriate word might be "away from". The translation is made as accurately as possible based on the provided text.The permanent magnet magnetization magnetic circuit mechanism provided by the present invention includes a first permanent magnet, a second permanent magnet, and a third permanent magnet connected in sequence along the X-axis direction. The two poles of the first permanent magnet and the third permanent magnet are arranged along the X-axis direction and the opposite ends have the same pole. The two poles of the second permanent magnet are arranged along the Z-axis direction. One end of the second permanent magnet is a magnetization surface, and the magnetic pole of the magnetization surface is the same as the magnetic poles of the opposite ends of the first permanent magnet and the third permanent magnet. It further includes a fourth permanent magnet and a fifth permanent magnet, which are respectively arranged on both sides of the second permanent magnet. The two poles of the fourth permanent magnet and the fifth permanent magnet are arranged along the Y-axis direction. The opposite ends of the fourth permanent magnet and the fifth permanent magnet have the same pole and are the same as the magnetic pole of the magnetization surface. With this structure, by forming two perpendicular Halbach magnetic circuit structures in the X-axis and Y-axis directions, the peak magnetic field region superimposed at one end of the magnetization surface of the second permanent magnet is more concentrated and the magnetic field intensity is higher, thereby improving the magnetization ability of the magnetization surface. It can be used for products with higher coercivity and thinner thickness, thus expanding the magnetization range of the permanent magnet magnetizer.

[0015] The present invention also provides a magnetization assembly, which includes a mounting base and a permanent magnet magnetization magnetic circuit mechanism. The mounting base is a "U"-shaped structural member formed by connecting a horizontal plate and two vertical plates. The permanent magnet magnetization magnetic circuit mechanism is adhesively bonded in the mounting base by a strong structural adhesive, so that the permanent magnet magnetization magnetic circuit mechanism can be quickly installed on the permanent magnet magnetizer. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram when the magnetization surface of the permanent magnet magnetization magnetic circuit mechanism in the present invention is an N pole;

[0018] Figure 2 It is a schematic diagram when the magnetization surface of the permanent magnet magnetization magnetic circuit mechanism in the present invention is an S pole;

[0019] Figure 3 It is a three-dimensional view of the magnetization assembly in the present invention;

[0020] Figure 4 It is a schematic diagram of the magnetization assembly with two mounting bases in the present invention;

[0021] Figure 5 It is a magnetic field nephogram of the magnetization surface of a common permanent magnet magnetization magnetic circuit mechanism;

[0022] Figure 6 It is a magnetic field nephogram of the magnetization surface of the permanent magnet magnetization magnetic circuit mechanism in the present invention.

[0023] In the figure:

[0024] 1-permanent magnetizing magnetic circuit mechanism; 11-first permanent magnet; 12-second permanent magnet; 121-magnetizing surface; 13-third permanent magnet; 14-fourth permanent magnet; 15-fifth permanent magnet;

[0025] 2-mounting seat; 21-horizontal plate; 22-vertical plate. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1:

[0030] In this embodiment, a permanent magnet magnetizing magnetic circuit mechanism 1, such as Figure 1 and Figure 2As shown, it includes a first permanent magnet 11, a second permanent magnet 12 and a third permanent magnet 13 connected in sequence along the X-axis direction, the two poles of the first permanent magnet 11 and the third permanent magnet 13 are arranged along the X-axis direction and the opposite ends are the same poles, the two poles of the second permanent magnet 12 are arranged along the Z-axis direction, one end of the second permanent magnet 12 is a magnetizing surface 121, and the magnetic poles of the magnetizing surface 121 are the same as the magnetic poles of the opposite ends of the first permanent magnet 11 and the third permanent magnet 13, so that the first permanent magnet 11, the second permanent magnet 12 and the third permanent magnet 13 form a Halbach magnetic circuit structure along the X-axis direction. To enhance the magnetic field strength of the magnetized surface 121, a fourth permanent magnet 14 and a fifth permanent magnet 15 are also included. The fourth permanent magnet 14 and the fifth permanent magnet 15 are respectively arranged on both sides of the second permanent magnet 12. The two poles of the fourth permanent magnet 14 and the fifth permanent magnet 15 are arranged along the Y-axis direction. The opposite ends of the fourth permanent magnet 14 and the fifth permanent magnet 15 have the same poles and are the same as the magnetic poles of the magnetized surface 121, so that the fourth permanent magnet 14, the second permanent magnet 12 and the fifth permanent magnet 15 form another Halbach magnetic circuit structure along the Y-axis direction to enhance the magnetic field strength of the magnetized surface 121.

[0031] By adopting this structure, two perpendicular Halbach magnetic circuit structures are formed in the X-axis and Y-axis directions, so that the magnetic field peak area superimposed on one end of the magnetized surface 121 of the second permanent magnet 12 is more concentrated and the magnetic field intensity is higher. Figure 5 and Figure 6 As shown, the magnetizing capacity of the magnetizing surface 121 is improved, and it can be used to magnetize products with higher coercive force and thinner thickness, thereby expanding the magnetizing range of the permanent magnet magnetizer.

[0032] It is worth noting that Figure 1 and Figure 2 As shown, the magnetic pole of the above-mentioned magnetized surface 121 can be an S pole or an N pole. By adjusting the two-pole orientations of the first permanent magnet 11, the second permanent magnet 12, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15, the S poles of the above-mentioned first permanent magnet 11, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 are all oriented toward the S pole of the second permanent magnet 12, and the above-mentioned magnetized surface 121 with a magnetic pole as the S pole can be obtained. By making the N poles of the above-mentioned first permanent magnet 11, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 all oriented toward the N pole of the second permanent magnet 12, the above-mentioned magnetized surface 121 with a magnetic pole as the N pole can be obtained.

[0033] Embodiment 2:

[0034] In this embodiment, a permanent magnet magnetizing magnetic circuit mechanism 1, such as Figure 1 and Figure 2As shown, it includes a first permanent magnet 11, a second permanent magnet 12 and a third permanent magnet 13 connected in sequence along the X-axis direction, the two poles of the first permanent magnet 11 and the third permanent magnet 13 are arranged along the X-axis direction and the opposite ends are the same poles, the two poles of the second permanent magnet 12 are arranged along the Z-axis direction, one end of the second permanent magnet 12 is a magnetizing surface 121, and the magnetic poles of the magnetizing surface 121 are the same as the magnetic poles of the opposite ends of the first permanent magnet 11 and the third permanent magnet 13, so that the first permanent magnet 11, the second permanent magnet 12 and the third permanent magnet 13 form a Halbach magnetic circuit structure along the X-axis direction. To enhance the magnetic field strength of the magnetized surface 121, a fourth permanent magnet 14 and a fifth permanent magnet 15 are also included. The fourth permanent magnet 14 and the fifth permanent magnet 15 are respectively arranged on both sides of the second permanent magnet 12. The two poles of the fourth permanent magnet 14 and the fifth permanent magnet 15 are arranged along the Y-axis direction. The opposite ends of the fourth permanent magnet 14 and the fifth permanent magnet 15 have the same poles and are the same as the magnetic poles of the magnetized surface 121, so that the fourth permanent magnet 14, the second permanent magnet 12 and the fifth permanent magnet 15 form another Halbach magnetic circuit structure along the Y-axis direction to enhance the magnetic field strength of the magnetized surface 121.

[0035] It is worth noting that Figure 1 and Figure 2 As shown, the magnetic pole of the above-mentioned magnetized surface 121 can be an S pole or an N pole. By adjusting the two-pole orientations of the first permanent magnet 11, the second permanent magnet 12, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15, the S poles of the above-mentioned first permanent magnet 11, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 are all oriented toward the S pole of the second permanent magnet 12, and the above-mentioned magnetized surface 121 with a magnetic pole as the S pole can be obtained. By making the N poles of the above-mentioned first permanent magnet 11, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 all oriented toward the N pole of the second permanent magnet 12, the above-mentioned magnetized surface 121 with a magnetic pole as the N pole can be obtained.

[0036] As a specific implementation of this embodiment, the widths of the first permanent magnet 11 and the third permanent magnet 13 along the Y-axis direction are the same and greater than the width of the second permanent magnet 12 along the Y-axis direction. The second permanent magnet 12 is connected to the first permanent magnet 11 and the third permanent magnet 13 in an "I" shape, thereby forming grooves on both sides of the second permanent magnet 12, and the fourth permanent magnet 14 and the fifth permanent magnet 15 are respectively embedded in the grooves on both sides of the second permanent magnet 12.

[0037] As an optimization, the end faces of the fourth permanent magnet 14 and the fifth permanent magnet 15 far from the second permanent magnet 12 are flush with the first permanent magnet 11 and the second permanent magnet 12, so that the first permanent magnet 11, the second permanent magnet 12, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 integrally form a rectangular body structure, which is convenient for assembly, installation and fixation, and also makes the magnetic fields in all directions more uniform, facilitating subsequent uniform magnetization of each position of the magnet.

[0038] In this embodiment, the first permanent magnet 11, the second permanent magnet 12, the third permanent magnet 13, the fourth permanent magnet 14 and the fifth permanent magnet 15 are bonded together by a strong structural adhesive.

[0039] Embodiment 3:

[0040] In this embodiment, a magnetization assembly, as Figure 3 shown, includes a mounting base 2 and a permanent magnet magnetization magnetic circuit mechanism 1. The mounting base 2 is used to mount the permanent magnet magnetization magnetic circuit mechanism 1 and is fixed on a permanent magnet magnetizer. Specifically, the mounting base 2 is a "U"-shaped structural member formed by connecting a horizontal plate 21 and two vertical plates 22. The horizontal plate 21 and the vertical plates 22 can be connected and fixed by screws or can be an integral structure. The permanent magnet magnetization magnetic circuit mechanism 1 is bonded to the horizontal plate 21 and the vertical plates 22 by a strong structural adhesive, so as to be fixed in the mounting base 2. The vertical plates 22 are provided with bolt holes, and the permanent magnet magnetization magnetic circuit mechanism 1 is quickly mounted on the permanent magnet magnetizer through bolts.

[0041] In this embodiment, the magnetization surface 121 is arranged on the side facing away from the horizontal plate 21 and is flush with the end face of the vertical plate 22, which is convenient for the magnetization surface 121 to be closer to the magnet to be magnetized during magnetization, thereby improving the magnetization efficiency and effect.

[0042] In this embodiment, as Figure 4 shown, the number of the mounting bases 2 is two. The two mounting bases 2 are symmetrically and spaced apart. The spaced space is used for passing through the magnet to be magnetized. Each mounting base 2 is provided with a permanent magnet magnetization magnetic circuit mechanism 1. The magnetization surfaces 121 of the two magnetic charging magnetic circuits are arranged oppositely and have opposite magnetic poles, that is, the magnetic pole of one of the magnetization surfaces 121 is the S pole, and the magnetic pole of the other magnetization surface 121 opposite to it is the N pole. The two magnetization surfaces 121 both enhance the magnetic field through two Halbach magnetic circuit structures, so that the magnetic field intensity of the magnetization assembly is higher, and products with higher coercivity and thinner thickness can be magnetized.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A permanent magnet magnetizing magnetic circuit mechanism, characterized in that: It includes a first permanent magnet, a second permanent magnet, and a third permanent magnet connected in sequence along the X-axis direction. The two poles of the first permanent magnet and the third permanent magnet are arranged along the X-axis direction and the opposite ends have the same polarity. The two poles of the second permanent magnet are arranged along the Z-axis direction. One end of the second permanent magnet is a magnetizing surface, and the magnetic pole of the magnetizing surface is the same as the magnetic poles of the opposite ends of the first permanent magnet and the third permanent magnet. The second permanent magnet is connected to the first permanent magnet and the third permanent magnet in an "I" shape. It further includes a fourth permanent magnet and a fifth permanent magnet, and the fourth permanent magnet and the fifth permanent magnet are respectively embedded in the grooves on both sides of the second permanent magnet. The two poles of the fourth permanent magnet and the fifth permanent magnet are arranged along the Y-axis direction, and the opposite ends of the fourth permanent magnet and the fifth permanent magnet have the same polarity and are the same as the magnetic pole of the magnetizing surface.

2. A permanent magnet magnetizing magnetic circuit mechanism according to claim 1, characterized in that: The first permanent magnet and the third permanent magnet have the same width along the Y-axis direction and are greater than the width of the second permanent magnet along the Y-axis direction.

3. A permanent magnet magnetizing magnetic circuit mechanism according to claim 2, characterized in that: The end faces of the fourth permanent magnet and the fifth permanent magnet away from the second permanent magnet are flush with the first permanent magnet and the second permanent magnet.

4. A permanent magnet magnetizing magnetic circuit mechanism according to claim 3, characterized in that: The first permanent magnet, the second permanent magnet, the third permanent magnet, the fourth permanent magnet, and the fifth permanent magnet are bonded into one body by a strong structural adhesive.

5. A magnetizing component, characterized in that: It includes a mounting seat and the permanent magnet magnetizing magnetic circuit mechanism according to any one of claims 1-4. The mounting seat is a "U"-shaped structural member formed by connecting a horizontal plate and two vertical plates. The permanent magnet magnetizing magnetic circuit mechanism is bonded in the mounting seat by a strong structural adhesive.

6. A magnetizing assembly according to claim 5, characterized in that: The magnetizing surface is arranged on the side facing away from the horizontal plate and is flush with the end face of the vertical plate.

7. A magnetizing assembly according to claim 6, characterized in that: The number of the mounting seats is two, and the two mounting seats are symmetrically and spaced apart. Each mounting seat is provided with a permanent magnet magnetizing magnetic circuit mechanism, and the magnetizing surfaces of the two permanent magnet magnetizing magnetic circuit mechanisms are arranged oppositely and have opposite magnetic poles.

8. A magnetizing assembly according to claim 7, characterized in that: The vertical plate is provided with bolt holes.

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