Annular magnet structure with limiting mechanism

Abstract

The utility model discloses an annular magnet structure with a limiting mechanism, and particularly relates to the technical field of annular magnet structures, the annular magnet structure comprises a bottom plate assembly, an annular magnet, a limiting assembly and a protection assembly, the annular magnet is installed above the bottom plate assembly, and the protection assembly is installed on the outer diameter surface of the annular magnet. A limiting assembly is installed on the inner diameter surface of the annular magnet and comprises a limiting ring assembly and a limiting buckle assembly, the limiting buckle assembly is placed above the limiting ring assembly, the movement range and position of the annular magnet can be precisely limited through the limiting assembly, it is ensured that the annular magnet works in a set area, and the service life of the annular magnet is prolonged. In scenes needing high-precision positioning, such as magnetic clamps in precise instruments and semiconductor manufacturing equipment, the machining or operation precision can be guaranteed, errors can be reduced, the limiting assembly can effectively prevent the annular magnet from moving beyond the safety range, collision and interference with other parts are avoided, and therefore the equipment damage risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ring magnet structure technology, and more specifically, to a ring magnet structure with a limiting mechanism. Background Technology

[0002] Ring magnets are a common type of magnet. Early magnets were mainly made of natural lodestone, which had weak magnetism and were difficult to shape. With the development of materials science, various artificially synthesized magnetic materials have been developed, such as ferrite and neodymium iron boron. These materials have stronger magnetism and more stable properties, providing a material basis for manufacturing ring magnets. Through continuous optimization of material composition and manufacturing processes, ring magnets can meet the requirements of different application scenarios in terms of magnetic strength, corrosion resistance, and temperature stability. Ring magnets are mainly used in the fields of motors, sensors, and medicine.

[0003] A search revealed that publication number CN217404510U discloses a Hall sensor based on a ring magnet structure, comprising a Hall sensor body, an outer shell, an end cap at the lower end of the outer shell, an inner shell inside the outer shell, and a Hall sensor chip within the inner shell. The Hall sensor chip includes a chip body and a circuit board. An S-pole magnetic ring and an N-pole magnetic ring are disposed on the outer side of the inner shell. This invention has a simple structure and innovatively employs a ring magnet structure. The ring magnet can sense changes in the external magnetic circuit. When magnetic circuit interference occurs, the magnetic ring lines in the magnetic field formed by the S-pole and N-pole magnetic rings change, causing a change in the induced current of the Hall sensor chip. This allows for the detection of certain faults in automobiles. Furthermore, the various components are easy to assemble, facilitating the replacement and repair of damaged parts. The inventors discovered the following problems with the existing technology during the development of this invention:

[0004] Some existing ring magnet structures, due to the lack of a defined positional constraint by the limit mechanism, can lead to a gradual accumulation of positional deviations in scenarios requiring continuous and unobstructed movement, affecting system accuracy. For example, in magnetic drive devices that require continuous rotation over long periods, the rotation angle error can increase continuously. Furthermore, due to the lack of limit constraints, the ring magnet can experience significant displacement or swaying when subjected to large external forces or abnormal conditions, affecting system stability. This makes it unsuitable for scenarios with extremely high stability requirements. In addition, traditional ring magnet mechanisms lack stable heat dissipation components. When the magnet temperature is too high, it can cause thermal expansion and deformation, affecting the precision of its fit with other components and thus the performance of the entire system. Moreover, operation at excessively high temperatures can lead to irreversible demagnetization of the ring magnet, causing a significant weakening or even loss of magnetism.

[0005] Therefore, a ring magnet structure with a limiting mechanism is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a ring magnet structure with a limiting mechanism to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a ring magnet structure with a limiting mechanism, comprising a base plate assembly, a ring magnet, a limiting assembly, and a protective assembly. The ring magnet is mounted on the top of the base plate assembly, and the protective assembly is mounted on the outer diameter surface of the ring magnet. The limiting assembly is mounted on the inner diameter surface of the ring magnet. The limiting assembly includes a limiting ring assembly and a limiting buckle assembly, and a limiting buckle assembly is placed on top of the limiting ring assembly.

[0008] Preferably, the base plate assembly includes a mounting plate, a first positioning bolt, and a second positioning bolt, wherein the mounting plate is mounted on one side of the first positioning bolt, and the second positioning bolt is placed on the side of the first positioning bolt away from the mounting plate.

[0009] Preferably, the protection component includes a connecting ring, a heat dissipation ring, and a heat sink, wherein the heat dissipation ring is mounted on the outer diameter surface of the connecting ring, and the heat dissipation ring is mounted on the outer diameter surface of the heat dissipation ring.

[0010] Preferably, the limiting ring assembly includes a mounting ring, a first fixing bolt, and a second fixing bolt, wherein the mounting ring is mounted on one side of the first fixing bolt, and the second fixing bolt is placed on the side of the first fixing bolt away from the mounting ring.

[0011] Preferably, the limiting buckle assembly includes a buckle, a fixing plate, and a film, and the fixing plate is installed on the side of the buckle, and the film is placed below the buckle.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. Compared with the prior art, this ring magnet structure with a limiting mechanism can accurately limit the movement range and position of the ring magnet through the limiting component, ensuring that it works within the set area. In scenarios requiring high-precision positioning, such as magnetic fixtures in precision instruments and semiconductor manufacturing equipment, it can guarantee the accuracy of processing or operation and reduce errors. Moreover, the limiting component can also effectively prevent the ring magnet from moving beyond the safe range, avoiding collisions or interference with other components, thereby reducing the risk of equipment damage. The limiting component connects the mounting ring and the ring magnet through the first fixing bolt and the second fixing bolt. The thread on the inner diameter of the mounting ring can be threaded to any part to provide a limit for the ring magnet. The limiting buckle component can fix the limiting ring component a second time to prevent the limiting ring component from shaking during the operation of the ring magnet mechanism.

[0014] 2. Compared with the prior art, this ring magnet structure with a limiting mechanism can effectively reduce temperature and thermal deformation through the protective component, allowing the ring magnet to maintain its original shape and dimensional accuracy. The protective component can also prevent excessive temperature and effectively prevent demagnetization, ensuring that the magnet maintains good magnetic performance throughout its service life. In some high-temperature environments, the protective component can ensure the normal operation of the ring magnet. The protective component is fixed to the outer diameter surface of the ring magnet through a connecting ring, while the heat dissipation ring and heat sink are made of copper with good heat dissipation performance. This allows the heat dissipation ring to not only dissipate heat from the surface of the ring magnet, but also to protect the ring magnet. The heat sink can increase the contact area between the heat dissipation ring and the air, thereby improving the heat dissipation efficiency of the protective component. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view schematic diagram of a ring magnet structure with a limiting mechanism according to the present invention.

[0016] Figure 2 This is a three-dimensional front view of the base plate assembly of a ring magnet structure with a limiting mechanism according to the present invention.

[0017] Figure 3 This is a front view schematic diagram of a limiting component with a ring magnet structure having a limiting mechanism according to the present invention.

[0018] Figure 4 This is a top view schematic diagram of a ring magnet with a limiting mechanism according to the present invention.

[0019] The attached figures are labeled as follows: 1. Base plate assembly; 2. Ring magnet; 3. Limiting assembly; 4. Protective assembly; 5. Limiting ring assembly; 6. Limiting buckle assembly; 7. Mounting plate; 8. First positioning bolt; 9. Second positioning bolt; 10. Connecting ring; 11. Heat dissipation ring; 12. Heat dissipation fin; 13. Mounting ring; 14. First fixing bolt; 15. Second fixing bolt; 16. Buckle; 17. Fixing plate; 18. Film. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] As attached Figures 1 to 4 The ring magnet structure with a limiting mechanism shown includes a base plate assembly 1, a ring magnet 2, a limiting assembly 3 and a protective assembly 4. The ring magnet 2 is installed on the top of the base plate assembly 1. The protective assembly 4 is installed on the outer diameter surface of the ring magnet 2. The limiting assembly 3 is installed on the inner diameter surface of the ring magnet 2. The limiting assembly 3 includes a limiting ring assembly 5 and a limiting buckle assembly 6. The limiting buckle assembly 6 is placed on top of the limiting ring assembly 5.

[0023] Specifically: When the base plate assembly 1 limits one side of the annular magnet 2 and the limiting ring assembly 5, the annular magnet 2 can provide magnetism to the annular magnet structure. The limiting assembly 3 can fix the annular magnet 2 to the structure where the annular magnet 2 needs to operate. The protection assembly 4 can accelerate the heat dissipation efficiency of the annular magnet 2 and provide protection for the annular magnet 2. The annular magnet 2 is bolted to the top of the base plate assembly 1. The protection assembly 4 is installed on the outer diameter surface of the annular magnet 2. The annular magnet 2 and the protection assembly 4 are connected by threads. The limiting assembly 3 is bolted to the inner diameter surface of the annular magnet 2. The limiting assembly 3 includes a limiting ring assembly 5 and a limiting buckle assembly 6. The limiting ring assembly 5 can fix the annular magnet 2 to the structure where it needs to operate by means of a threaded connection. The limiting buckle assembly 6 can fix the limiting ring assembly 5 to the structure where it needs to operate. One side of component 5 is fixed and limited. A limit buckle component 6 is placed above the limit ring component 5. When the ring magnet structure is running in a high-temperature environment, the limit component 3 and the base plate component 1 can limit the position of the ring magnet 2, so that the ring magnet 2 can be fixed on different mechanisms for operation, and the position of the ring magnet 2 will not shift when it is running. The limit ring component 5 in the limit component 3 can be threaded to the outer diameter surface of the mechanism used to fix the ring magnet 2 on the mechanism used. The limit buckle component 3 can fix one side of the limit ring component 5 so that the limit ring component 5 will not shake when it rotates. The protection component 4 can protect the ring magnet 2 so that it can operate normally in a high-temperature environment and prevent the ring magnet 2 from weakening its magnetism due to high temperature.

[0024] Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, the base plate assembly 1 includes a mounting plate 7, a first positioning bolt 8, and a second positioning bolt 9. The mounting plate 7 can provide a placement space for the annular magnet 2 and can limit one side of the limiting ring assembly 5. The first positioning bolt 8 and the second positioning bolt 9 connect the mounting plate 7 and the annular magnet 2 by bolts. The first positioning bolt 8 passes through the mounting plate 7, and the second positioning bolt 9 is placed on the side of the first positioning bolt 8.

[0027] In a preferred embodiment, the protection component 4 includes a connecting ring 10, a heat dissipation ring 11, and a heat sink 12. The connecting ring 10 connects the heat dissipation ring 11 and the annular magnet 2 by threads. The heat dissipation ring 11 provides protection for the annular magnet 2 and accelerates the heat dissipation rate of the annular magnet 2. The heat sink 12 can increase the contact area between the heat dissipation ring 11 and the air, thereby improving the heat dissipation rate of the protection component 4. The heat dissipation ring 11 is bolted to the outer diameter surface of the connecting ring 10, and the heat sink 12 is bolted to the outer diameter surface of the heat dissipation ring 11.

[0028] In a preferred embodiment, the limiting ring assembly 5 includes a mounting ring 13, a first fixing bolt 14, and a second fixing bolt 15. The mounting ring 13 can fix the annular magnet 2 to the structure where it needs to operate by means of a threaded connection. The first fixing bolt 14 and the second fixing bolt 15 can connect the annular magnet 2 and the mounting ring 13. The first fixing bolt 14 passes through the mounting ring 13, and the second fixing bolt 15 is placed on the side of the first fixing bolt 14.

[0029] In a preferred embodiment, the limiting buckle assembly 6 includes a buckle 16, a fixing plate 17, and a film 18. The buckle 16 limits one side of the mounting ring 13. The fixing plate 17 connects the buckle 16 and the annular magnet 2. The film 18 bonds one side of the buckle 16 to one side of the mounting ring 13. The fixing plate 17 is bolted to the side of the buckle 16, and the film 18 is placed below the buckle 16.

[0030] The working process of this utility model is as follows: First, when the annular magnet structure operates in a high-temperature environment, the limiting ring assembly 5 of the limiting component 3 and the mounting plate 7 of the base plate assembly 1 can limit the position of the annular magnet 2, so that the annular magnet 2 can be fixed on different mechanisms for operation, and the position of the annular magnet 2 will not shift during operation. The mounting plate 7 is connected to the annular magnet 2 through the first positioning bolt 8 and the second positioning bolt 9. The mounting ring 13 in the limiting ring assembly 5 is connected to the annular magnet 2 through the first fixing bolt 14 and the second fixing bolt 15. The mounting ring 13 is threaded to the position of the annular magnet 2 that needs to be fixed through the thread on the inner diameter surface. In order to prevent the limiting ring assembly 5 from shaking during operation in a rotating environment, a limiting buckle assembly 6 is used to fix one side of the limiting ring assembly 5. The buckle 16 in the limiting buckle assembly 6 is bonded to the top of the mounting ring 13 by the adhesive sheet 18 and fixed to the annular magnet 2 by the fixing plate 17, so that the limiting ring assembly 5 will not wobble when it rotates. The protective assembly 4 can protect the annular magnet 2 to operate normally in high temperature environment, so that the annular magnet 2 will not weaken its magnetism due to high temperature. The protective assembly 4 is fixed to the outer diameter surface of the annular magnet 2 by the connecting ring 10. The heat dissipation ring 11 and the heat dissipation fin 12 are made of copper with good heat dissipation performance. The heat dissipation ring 11 can not only dissipate heat from the surface of the annular magnet 2, but also protect the annular magnet 2. The heat dissipation fin 12 can increase the contact area between the heat dissipation ring 11 and the air, thereby improving the heat dissipation efficiency of the protective assembly 4. The above is the working principle of annular magnet structure with limiting mechanism.

Claims

1. A ring magnet structure with a limiting mechanism, comprising a base plate assembly (1), a ring magnet (2), a limiting assembly (3) and a protection assembly (4), characterized in that: A ring magnet (2) is installed on the top of the base plate assembly (1), and a protective assembly (4) is installed on the outer diameter surface of the ring magnet (2), and a limiting assembly (3) is installed on the inner diameter surface of the ring magnet (2). The limiting assembly (3) includes a limiting ring assembly (5) and a limiting buckle assembly (6), and a limiting buckle assembly (6) is placed on top of the limiting ring assembly (5).

2. The toroidal magnet structure with a limiting mechanism according to claim 1, characterized in that: The base plate assembly (1) includes a mounting plate (7), a first positioning bolt (8) and a second positioning bolt (9), wherein the mounting plate (7) is mounted on one side of the first positioning bolt (8) and the second positioning bolt (9) is placed on the side of the first positioning bolt (8) away from the mounting plate (7).

3. The annular magnet structure with a limiting mechanism according to claim 1, wherein: The protection component (4) includes a connecting ring (10), a heat dissipation ring (11) and a heat sink (12), and the heat dissipation ring (11) is installed on the outer diameter surface of the connecting ring (10), and the heat dissipation ring (12) is installed on the outer diameter surface of the heat dissipation ring (11).

4. The annular magnet structure with a limiting mechanism according to claim 1, wherein: The limiting ring assembly (5) includes a mounting ring (13), a first fixing bolt (14) and a second fixing bolt (15), wherein the mounting ring (13) is mounted on one side of the first fixing bolt (14) and the second fixing bolt (15) is placed on the side of the first fixing bolt (14) away from the mounting ring (13).

5. The annular magnet structure with a limiting mechanism according to claim 1, wherein: The limiting buckle assembly (6) includes a buckle (16), a fixing plate (17) and a film (18), and the fixing plate (17) is installed on the side of the buckle (16), and the film (18) is placed below the buckle (16).

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