CN219575294U

CN219575294U - Magnet combined structure

Info

Publication number: CN219575294U
Application number: CN202320027064.5U
Authority: CN
Inventors: 库万军; 刘晋
Original assignee: Huaxia Magnetic Electronic Technology Development Shenzhen Co ltd
Current assignee: Huaxia Magnetic Electronic Technology Development Shenzhen Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-08-22
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses a magnet combination structure, which comprises a magnet assembly and a shielding box, wherein the top of the shielding box is provided with an opening, the magnet assembly is sleeved in the shielding box, and the strong magnetic surface of the magnet assembly is opposite to the opening; the magnet assembly comprises at least 2 magnets and at least 1 magnetic conduction rod, and adjacent magnets are connected through the magnetic conduction rod. According to the magnet combination structure, the magnetic conduction rods are bonded between the adjacent magnets and then are bonded and fixed in the shielding box, and the opening corresponding to the strong magnetic surface of the magnet assembly is arranged on the shielding box, so that on one hand, the adsorption function of the strong magnetic surface of the magnet assembly can be applied, and meanwhile, the influence of the weak magnetic surface of the magnet assembly can be shielded; on the other hand, by using such a combination, the magnetic field area can be increased while keeping the magnet length direction without increasing, and the cost can be greatly reduced.

Description

Magnet combined structure

Technical Field

The utility model relates to the technical field of magnet production, in particular to a magnet combined structure.

Background

The permanent magnets are used in a wide variety of applications including televisions, speakers, audio speakers, radios, leather bags, data wire magnetic rings, computer hard disks, cell phone shakers, and the like. Permanent magnets such as speakers produce sound by utilizing the principle of moving an energized coil in a magnetic field. When the current in the coil changes, the magnetic field generated by the current acts on the permanent magnet on the loudspeaker, so that the relative positions of the coil and the magnet change, the cone on the loudspeaker is driven to vibrate, air is pushed and the vibration is transmitted, and the sound is heard by the human ear. In a word, the permanent magnet is ubiquitous in life of people, and is convenient for production and life of people.

In the prior art, the permanent magnet is an integral body, the physical dimensions of two poles of the S/N pole are symmetrical, the integral magnetic field strength is also symmetrical, and if the magnetic field area needs to be increased in the length direction, the length of the permanent magnet needs to be increased, which leads to the increase of the cost of the permanent magnet.

Disclosure of Invention

In order to solve the technical problem that the cost of the permanent magnet for increasing the magnetic field area in the length direction is high, the utility model aims to provide a magnet combined structure.

The utility model is realized by the following technical scheme:

the utility model provides a magnet combination structure, which comprises a magnet assembly and a shielding box, wherein the top of the shielding box is provided with an opening, the magnet assembly is sleeved in the shielding box, and the strong magnetic surface of the magnet assembly is opposite to the opening; the magnet assembly comprises at least 2 magnets and at least 1 magnetic conduction rod, and adjacent magnets are connected through the magnetic conduction rods.

In some embodiments, at least 3 magnets and at least 2 magnetically permeable rods in the magnet assembly are bonded by glue; the magnet assembly is adhesively fixed in the shielding box.

In some embodiments, the ferromagnetic surfaces of at least 3 magnets and at least 2 magnetically permeable rods in the magnet assembly are all in the same plane.

In some embodiments, the magnet is a permanent magnet.

In some embodiments, the magnetically permeable rod is cylindrical or rectangular in shape.

In some embodiments, the magnet assembly comprises 3 magnets and 2 magnetically permeable rods.

In some embodiments, the magnet assembly comprises 2 magnets and 1 magnetically permeable rod.

In some embodiments, the shielding box is made of stainless steel or low-carbon steel; the shielding box is formed by stamping.

In some embodiments, the shielding cage is rectangular parallelepiped; the thickness of the shielding box is 0.1 mm-2 mm.

Compared with the prior art, the utility model has the beneficial effects that:

according to the magnet combination structure, the magnetic conduction rods are adhered between the adjacent magnets and then adhered and fixed in the shielding box, and the opening corresponding to the strong magnetic surface of the magnet assembly is arranged on the shielding box, so that on one hand, the adsorption function of the strong magnetic surface of the magnet assembly can be applied, and meanwhile, the influence of the weak magnetic surface of the magnet assembly can be shielded; on the other hand, by using such a combination, the length direction of the holding magnet does not need to be increased, the magnetic field area can be increased, and the cost can be greatly reduced.

Drawings

FIG. 1 is a perspective view of a combination of 3 magnets and 2 magnetic bars in a magnet combination according to an embodiment of the present utility model;

FIG. 2 is a top view of a combination of 3 magnets and 2 magnetic bars in a magnet combination according to an embodiment of the utility model;

FIG. 3 is a side view of a combination of 3 magnets and 2 magnetic bars in a magnet combination in an embodiment of the utility model;

FIG. 4 is a perspective view of a magnet assembly structure of 2 magnets and 1 magnetic conductive rod in an embodiment of the present utility model;

FIG. 5 is a top view of a magnet assembly of 2 magnets and 1 magnetic bar in an embodiment of the present utility model;

FIG. 6 is a side view of a magnet assembly of 2 magnets and 1 magnetic bar in an embodiment of the present utility model;

1-a magnetic conduction rod; 2-shielding box; 3-permanent magnets; 4-shield box opening face.

Detailed Description

The utility model will be further described with reference to the following drawings in conjunction with the preferred embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

It should be noted that, in this embodiment, the terms of left, right, upper, lower, top, bottom, etc. are merely relative terms, or refer to the normal use state of the product, and should not be considered as limiting.

The following is a summary of embodiments of the utility model:

the utility model provides a magnet combination structure, which comprises a magnet assembly and a shielding box, wherein the top of the shielding box is provided with an opening, the magnet assembly is sleeved in the shielding box, and the strong magnetic surface of the magnet assembly is opposite to the opening; the magnet assembly comprises at least 2 magnets and at least 1 magnetic conduction rod, and adjacent magnets are connected through the magnetic conduction rod.

In specific application, at least 3 magnets and at least 2 magnetic conductive rods are bonded by glue in the magnet assembly; the magnet component is adhered and fixed in the shielding box; further, the strong magnetic surfaces of at least 3 magnets and at least 2 magnetic conducting rods in the magnet assembly are all in the same plane.

More specifically, the magnet is preferably a permanent magnet; the shape of the magnetic conduction rod is preferably a cylinder or a cuboid; the magnet assembly preferably comprises 3 magnets and 2 magnetically permeable rods.

In specific application, the shielding box is made of stainless steel or low-carbon steel; the shielding box is formed by stamping; further, the shielding box is rectangular; the thickness of the shielding box is 0.1 mm-2 mm.

Examples:

the magnet assembly structure comprises a magnet assembly and a shielding box, wherein the magnet assembly comprises at least 3 magnets and 2 magnetic conducting rods, and adjacent magnets are connected through the magnetic conducting rods. The shape of the magnetic conduction rod is not limited, and the magnetic conduction rod can be a cylinder or a cuboid. The shielding box is made of stainless steel or low-carbon steel, the top of the shielding box is provided with an opening, the magnet assembly is sleeved in the shielding box, and the strong magnetic surface of the sintered NdFeB magnetic steel is opposite to the opening;

at least 3 magnets and 2 magnetic conduction rods are fixed in the shielding box through glue adhesion, and the strong magnetic surfaces of all the sintered NdFeB magnetic steels are in the same plane;

in the utility model, the magnetic conductive rod is added between the adjacent magnets, so that the dosage of the magnets can be effectively reduced in the length direction, and the cost can be reduced on the premise of meeting the performance requirement.

Experimental example:

as shown in fig. 1-6, the magnetic combination structure provided by the experimental example and with the magnetic conducting rods 1 between the adjacent magnets 3 comprises a magnet assembly and a shielding box 2, wherein the magnet assembly can be shown in fig. 1-3 and comprises at least 3 magnets 3 and 2 magnetic conducting rods 1, and the adjacent magnets 3 are connected by the magnetic conducting rods 1; the magnet assembly can also comprise at least 2 magnets 3 and 1 magnetic conduction rod 1, wherein adjacent magnets 3 are connected by the magnetic conduction rod 1 as shown in fig. 4-6; wherein the magnet 3 adopts a permanent magnet 3, and the experimental example adopts sintered NdFeB magnetic steel 3; the magnet 3 and the magnetic conduction rod 1 are bonded and fixed by glue.

The shielding box 2 is made of stainless steel or low carbon steel, the top of the shielding box 2 is provided with an opening 4, the magnet assembly is sleeved in the shielding box 2, and the strong magnetic surface of the sintered NdFeB magnetic steel 3 is opposite to the opening 4 of the shielding box 2;

the magnet assembly is fixed in the shielding box 2 through glue, and the strong magnetic surfaces of all the sintered NdFeB magnetic steels 3 are in the same plane;

the shape of the magnetic conduction rod 1 is not limited, and the magnetic conduction rod can be a cylinder or a cuboid; the shape of the magnetic conduction rod 1 in the experimental example is a cylinder.

The shielding box 2 is formed by stamping; the shape is cuboid; the thickness is 0.1 mm-2 mm.

In the experimental example of the utility model, the magnetic conduction rod 1 is added between the adjacent magnets 3, and by using the combination, the magnetic field area can be increased in the length direction, and the cost of the magnetic conduction rod 1 is far lower than that of the permanent magnet 3. By using the combination, the cost can be effectively reduced.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several equivalent substitutions and obvious modifications can be made without departing from the spirit of the utility model, and the same should be considered to be within the scope of the utility model.

Claims

1. The magnet combination structure is characterized by comprising a magnet assembly and a shielding box, wherein the top of the shielding box is provided with an opening, the magnet assembly is sleeved in the shielding box, and the strong magnetic surface of the magnet assembly is opposite to the opening; the magnet assembly comprises at least 2 magnets and at least 1 magnetic conduction rod, and adjacent magnets are connected through the magnetic conduction rods.

2. The magnet assembly of claim 1, wherein at least 3 magnets and at least 2 magnetically permeable rods in the magnet assembly are bonded by glue; the magnet assembly is adhesively fixed in the shielding box.

3. The magnet assembly of claim 1, wherein the ferromagnetic surfaces of at least 3 magnets and at least 2 magnetically permeable rods in the magnet assembly are all in the same plane.

4. A magnet assembly according to any one of claims 1-3, wherein the magnet is a permanent magnet.

5. A magnet assembly according to any one of claims 1 to 3, wherein the magnetically permeable rod is cylindrical or rectangular in shape.

6. A magnet assembly according to any one of claims 1-3, wherein the magnet assembly comprises 3 magnets and 2 magnetically permeable rods.

7. A magnet assembly according to any one of claims 1-3, wherein the magnet assembly comprises 2 magnets and 1 magnetically permeable rod.

8. The magnet assembly according to claim 1, wherein the shielding case is made of stainless steel or low carbon steel; the shielding box is formed by stamping.

9. The magnet assembly according to claim 1 or 8, wherein the shielding cage is rectangular parallelepiped; the thickness of the shielding box is 0.1 mm-2 mm.