Isolator anti-adsorption mechanism with magnet

Abstract

The utility model is applicable to the technical field of isolators, and provides an isolator anti-adsorption mechanism with magnets, which comprises an isolator frame, and a plurality of magnet units are arranged on the outer side of the isolator frame; each magnet unit comprises a U-shaped mounting seat arranged on the outer side of the isolator frame; the outer side of the mounting seat is rotationally matched with a permanent magnet through a bearing; the permanent magnet is a multi-pole magnetized cylinder; the transmission device is arranged beside the isolator main body; the isolation plate is arranged at the moving end of the transmission device; according to the device, the magnetic shielding capability of the isolator is remarkably enhanced, external magnetic field interference is effectively resisted, internal magnetic field leakage is prevented, and it is ensured that a stable magnetic state is maintained in a complex environment; meanwhile, the magnet units on the outer side are accurately controlled through a stepping motor, magnetic field distribution is flexibly adjusted, the specific anti-adsorption effect is achieved, shielding or exposure of the magnet units is achieved by accurately controlling the position of an isolation plate, and functionality and adaptability are enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of isolator technology, and in particular relates to an isolator anti-adsorption mechanism with magnets. Background Technology

[0002] Isolators play a crucial role in electromagnetic isolation; however, with increasingly complex application environments, isolators face numerous challenges. In particular, external magnetic field interference has become one of the main threats to the stable operation of isolators. These interferences may originate from surrounding electronic equipment, power lines, or magnetic materials, which can interfere with the internal magnetic structure of the isolator, leading to performance degradation or malfunction. At the same time, if the magnetic field inside the isolator leaks to the outside, it may also have adverse effects on surrounding equipment or the environment.

[0003] In addition, in certain specific applications, isolators also need to prevent magnetic materials from adsorbing onto their surfaces; existing anti-adsorption methods are often limited in effectiveness and difficult to adjust flexibly to meet different application requirements; and traditional isolator designs often only focus on magnetic properties, neglecting other important aspects such as mechanical strength, insulation properties and conductivity. Utility Model Content

[0004] This invention provides an anti-adsorption mechanism for an isolator equipped with a magnet, aiming to solve the problems of existing isolators being susceptible to interference from external magnetic fields, affecting the internal magnetic structure, leading to performance degradation or failure, and the leakage of internal magnetic fields potentially harming the surrounding environment. At the same time, existing anti-adsorption methods have limited effectiveness and lack flexibility.

[0005] This utility model is implemented as follows: an isolator anti-adsorption mechanism with magnets includes an isolator frame with multiple magnet units arranged on its outer side.

[0006] Each magnet unit includes:

[0007] A U-shaped mounting base located on the outside of the isolator frame;

[0008] A permanent magnet is mounted on the outside of the mounting base via a bearing. The permanent magnet is a multi-pole magnetized cylinder.

[0009] A stepper motor is installed inside the mounting base, and the output shaft of the stepper motor is fixedly connected to the rotating shaft of the permanent magnet through a flange coupling;

[0010] A transmission device located beside the isolator body; and

[0011] An isolation plate located at the moving end of the transmission device;

[0012] The isolation plate has a laminated ferromagnetic matrix embedded inside, and the ferromagnetic matrix and the magnet unit form a magnetic structure.

[0013] Preferably, the transmission device includes:

[0014] A fixed seat, a transmission screw that rotates between the fixed seats via bearings, a transmission block that is threaded onto the transmission screw, and a sliding engagement between the transmission block and the fixed seat;

[0015] The servo motor is located on the end of the fixed base, and the output shaft of the servo motor is fixedly connected to the end of the transmission screw through a flexible coupling;

[0016] The isolation plate is connected to the transmission block.

[0017] Preferably, a gradient composite film is deposited on the surface of the laminated ferromagnetic substrate, wherein the gradient composite film consists of a nickel-iron alloy layer, a silicon dioxide insulating layer, and a graphene conductive layer from the inside out.

[0018] Preferably, the laminated ferromagnetic substrate is made of stacked silicon steel sheets, and the surface of the isolation plate is coated with a non-magnetic protective layer, which is a nano-ceramic composite material.

[0019] Preferably, the permanent magnet is a neodymium iron boron magnet, and the polarity of adjacent permanent magnets is arranged in a Halbach array.

[0020] Preferably, a non-magnetic protective layer covers the edge of the isolation plate, and the material is zirconia ceramic with a micron-level textured surface.

[0021] Preferably, a laser displacement sensor is provided on the outside of the transmission block.

[0022] Preferably, a magnetic shielding layer is provided on the inner side of the isolator frame.

[0023] Compared with the prior art, the embodiments of this application have the following main advantages:

[0024] Firstly, this device significantly enhances the magnetic shielding capability of the isolator, effectively resisting external magnetic field interference and preventing internal magnetic field leakage, ensuring that the isolator maintains a stable magnetic state in complex environments. At the same time, the magnet unit configured on the outside uses a stepper motor to precisely control the rotation of the permanent magnet, flexibly adjusting the magnetic field distribution to achieve a specific anti-adsorption effect. Moreover, by precisely controlling the position of the isolation plate, the magnet unit can be shielded or exposed, further enhancing the functionality and adaptability of the device.

[0025] Secondly, the isolation plate of this device adopts a design that combines a laminated ferromagnetic substrate with a multi-layer composite film, which not only has stable magnetic properties, but also significantly improves the mechanical strength, insulation performance and conductivity of the isolation plate. At the same time, the non-magnetic protective layer of zirconia ceramic covering the edge of the isolation plate further enhances its durability and anti-slip properties, ensuring that the anti-adsorption mechanism of the isolator can operate stably for a long time. The overall design improves performance while fully guaranteeing the reliability of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 3 This is a top view structural diagram of this utility model;

[0029] Figure 4 This is a side sectional view of the present invention.

[0030] Figure 5 This is a top sectional view of the structure of this utility model;

[0031] In the diagram: 1. Isolator frame; 2. Magnet unit; 201. Mounting base; 202. Permanent magnet; 203. Stepper motor; 3. Isolation plate; 4. Laminated ferromagnetic substrate; 5. Fixing base; 6. Drive screw; 7. Drive block; 8. Servo motor; 9. Gradient composite film layer; 901. Nickel-iron alloy layer; 902. Silica insulating layer; 903. Graphene conductive layer; 10. Non-magnetic protective layer; 11. Laser displacement sensor; 12. Magnetic shielding layer. Detailed Implementation

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] This utility model embodiment provides an isolator anti-adsorption mechanism with a magnet, such as... Figure 1-5 As shown, it includes an isolator frame 1, with multiple magnet units 2 disposed on its outer side;

[0035] Each magnet unit 2 includes:

[0036] U-shaped mounting base 201 located on the outside of isolator frame 1;

[0037] A permanent magnet 202 is rotatably fitted to the outer side of the mounting base 201 via a bearing. The permanent magnet 202 is a multi-pole magnetized cylinder.

[0038] A stepper motor 203 is provided inside the mounting base 201. The output shaft of the stepper motor 203 is fixedly connected to the rotating shaft of the permanent magnet 202 through a flange coupling.

[0039] A transmission device located beside the isolator body; and

[0040] Isolation plate 3 is installed at the moving end of the transmission device;

[0041] The isolation plate 3 has a laminated ferromagnetic matrix 4 embedded inside, and the ferromagnetic matrix and the magnet unit 2 form a magnetic structure.

[0042] It should be noted that existing isolators are susceptible to external magnetic field interference, which can affect their internal magnetic structure, leading to performance degradation or malfunction. Furthermore, internal magnetic field leakage can harm the surrounding environment. Existing anti-adsorption methods also have limited effectiveness and lack flexibility. This solution significantly enhances the magnetic shielding capability of the isolator, effectively resisting external magnetic field interference and preventing internal magnetic field leakage, ensuring a stable magnetic state in complex environments. Simultaneously, the outer magnet unit 2 utilizes a stepper motor 203 to precisely control the rotation of the permanent magnet 202, flexibly adjusting the magnetic field distribution to achieve a specific anti-adsorption effect. Precise control of the position of the isolation plate 3 allows for the shielding or exposure of the magnet unit 2, improving the functionality and adaptability of the device. In addition, the isolation plate 3 employs a laminated ferromagnetic substrate 4 and a multi-layer composite film design, combined with a zirconium oxide ceramic non-magnetic protective layer 10 at the edge. This not only provides stable magnetic performance but also significantly improves mechanical strength, insulation performance, and conductivity, enhancing durability and anti-slip properties, ensuring long-term stable operation of the isolator's anti-adsorption mechanism. The overall design improves performance while fully guaranteeing the reliability of the device.

[0043] Specifically, in this embodiment, the solution mainly includes an isolator frame 1, with multiple magnet units 2 arranged on its outer side; each magnet unit 2 consists of a U-shaped mounting base 201, a permanent magnet 202, and a stepper motor 203; the U-shaped mounting base 201 is fixed to the outer side of the isolator frame 1, providing stable support for the permanent magnet 202 and the stepper motor 203; the permanent magnet 202 is mounted on the outer side of the mounting base 201 and rotates with it through a bearing, allowing the permanent magnet 202 to rotate freely; this permanent magnet 202 is a multi-pole magnetized cylinder with a specific magnetic field distribution;

[0044] Inside the mounting base 201, a stepper motor 203 is installed; the output shaft of the stepper motor 203 is fixedly connected to the rotation shaft of the permanent magnet 202 through a flange coupling, so that the stepper motor 203 can precisely control the rotation of the permanent magnet 202; by adjusting the rotation angle and speed of the permanent magnet 202, the magnetic field distribution it generates can be changed, thereby achieving a specific anti-adsorption effect.

[0045] The transmission device is located on the side of the isolator body, and its moving end is connected to the isolator plate 3. The isolator plate 3 is embedded with a laminated ferromagnetic matrix 4, which forms a magnetic structure with the magnet unit 2. When the permanent magnet 202 of the magnet unit 2 rotates, the magnetic field generated will interact with the ferromagnetic matrix in the isolator plate 3, thereby changing the magnetic field environment around the isolator plate 3.

[0046] By moving the transmission device, the isolation plate 3 can block or expose the magnet unit 2 when needed, thereby controlling its adsorption or anti-adsorption effect on external objects; this design makes the anti-adsorption mechanism of the isolator flexible and adjustable, and can adapt to different usage scenarios and needs.

[0047] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the transmission device includes:

[0048] A fixed base 5, a transmission screw 6 that rotates between the fixed base 5 via bearings, a transmission block 7 threadedly fitted on the transmission screw 6, and a sliding fit between the transmission block 7 and the fixed base 5;

[0049] The servo motor 8 is located on the end side of the fixed base 5, and the output shaft of the servo motor 8 is fixedly connected to the end of the transmission screw 6 through a flexible coupling.

[0050] The isolation plate 3 is connected to the transmission block 7.

[0051] In this embodiment, the servo motor 8 serves as a power source and can precisely drive the transmission screw 6 to rotate according to the control signal. When the transmission screw 6 rotates, the thread on it will push the transmission block 7 to move along the screw axis. The isolation plate 3 is connected to the transmission block 7. Therefore, when the transmission block 7 moves, the isolation plate 3 will also move accordingly. In this way, by driving the transmission screw 6 to rotate through the servo motor 8, the position of the isolation plate 3 can be precisely controlled, thereby realizing the function of blocking or exposing the magnet unit 2.

[0052] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the surface of the laminated ferromagnetic substrate 4 is coated with a gradient composite film layer 9, which consists of a nickel-iron alloy layer 901, a silicon dioxide insulating layer 902, and a graphene conductive layer 903 from the inside out.

[0053] In this embodiment, the nickel-iron alloy layer 901, as a layer in direct contact with the ferromagnetic substrate, has good magnetic and mechanical properties, which can enhance the magnetic interaction between the isolation plate 3 and the magnet unit 2. The silicon dioxide insulating layer 902 is located outside the nickel-iron alloy layer 901, and as an insulating barrier, it effectively isolates the nickel-iron alloy layer 901 from direct contact with the external environment, preventing possible chemical or electrochemical corrosion, thereby protecting the stability and durability of the nickel-iron alloy layer 901. The outermost graphene conductive layer 903 endows the isolation plate 3 with certain conductivity, not only with extremely high electrical conductivity, but also with good mechanical strength and chemical stability, which together improve the comprehensive performance of the isolation plate 3, enabling it to better meet the application requirements of the isolator anti-adsorption mechanism.

[0054] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the laminated ferromagnetic substrate 4 is made of laminated silicon steel sheets, and the surface of the isolation plate 3 is coated with a non-magnetic protective layer 10, which is a nano-ceramic composite material.

[0055] In this embodiment, due to its good magnetic permeability and low hysteresis loss, the silicon steel sheets are tightly bonded together through a lamination process to form a laminated ferromagnetic matrix 4 with stable magnetic properties. The main function of the non-magnetic protective layer 10 is to protect the ferromagnetic matrix inside the isolation plate 3 from the corrosion of the external environment. Since the protective layer is non-magnetic, it will not interfere with the magnetic properties of the isolation plate 3. This means that the isolation plate 3 achieves better environmental adaptability and durability while maintaining its magnetic function.

[0056] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the permanent magnet 202 is a neodymium iron boron magnet, and the polarity arrangement of adjacent permanent magnets 202 is a Halbach array.

[0057] In this embodiment, the use of neodymium iron boron magnets ensures that the magnet unit 2 has a strong magnetic attraction force and can stably interact magnetically with the isolation plate 3. The Halbach array is a special magnet arrangement method. By precisely controlling the polarity and direction of the magnets, the magnetic field can be enhanced in a specific direction and weakened or canceled in other directions. This arrangement method not only improves the magnetic field efficiency of the magnet unit 2, but also reduces magnetic field leakage and interference, making the anti-adsorption mechanism of the isolator more stable and reliable during operation.

[0058] In a further preferred embodiment of this utility model, such as Figure 1-2 As shown, the non-magnetic protective layer 10 covers the edge of the isolation plate 3. The material is zirconia ceramic, and the surface has micron-level uneven texture.

[0059] In this embodiment, the zirconia ceramic non-magnetic protective layer 10 protects the edge of the isolation plate 3, enabling it to maintain stable performance in complex environments. The micron-level textured design further enhances the durability and anti-slip properties of the protective layer, ensuring the long-term stable operation of the isolator's anti-adsorption mechanism.

[0060] In a further preferred embodiment of this utility model, such as Figure 1 As shown, a laser displacement sensor 11 is provided on the outside of the transmission block 7.

[0061] In this embodiment, the laser displacement sensor 11 (SICK CLS100) can monitor the position change of the transmission block 7 in real time and transmit the signal to the external control system, thereby realizing precise control of the position of the isolation plate 3.

[0062] In a further preferred embodiment of this utility model, such as Figure 1 As shown, a magnetic shielding layer 12 is provided on the inner side of the isolator frame 1.

[0063] In this embodiment, the magnetic shielding layer 12 can effectively shield the external magnetic field from interfering with the internal magnetic structure of the isolator, while preventing the internal magnetic field of the isolator from having unnecessary influence on the outside world, further improving the magnetic shielding performance of the isolator and enabling it to maintain stable magnetic performance in various complex environments.

[0064] Working principle: This device includes an isolator frame 1, with a magnetic shielding layer 12 on its inner side. The magnetic shielding layer 12 can effectively shield the interference of external magnetic fields on the internal magnetic structure of the isolator and prevent the internal magnetic field of the isolator from having unnecessary influence on the outside world, thereby improving the magnetic shielding performance of the isolator and ensuring that it can maintain stable magnetic performance in various complex environments.

[0065] Multiple magnet units 2 are arranged on the outer side of the isolator frame 1; each magnet unit 2 includes a U-shaped mounting base 201, a permanent magnet 202, and a stepper motor 203; the U-shaped mounting base 201 is fixed on the outer side of the isolator frame 1, providing stable support for the permanent magnet 202 and the stepper motor 203; the permanent magnet 202 is a multi-pole magnetized cylinder with a specific magnetic field distribution. It is installed on the outer side of the mounting base 201 and rotates freely with it through a bearing; on the inner side of the mounting base 201, the stepper motor 203 is fixedly connected to the rotation shaft of the permanent magnet 202 through a flange coupling, thereby enabling precise control of the rotation angle and speed of the permanent magnet 202, thereby changing the magnetic field distribution it generates and achieving a specific anti-adsorption effect;

[0066] A transmission device is provided on the side of the isolator body. The transmission device is driven by a servo motor 8 and can rotate according to the drive transmission screw 6. The thread on the drive screw 6 will push the transmission block 7 to move along the screw axis. Since the isolation plate 3 is connected to the transmission block 7, the movement of the transmission block 7 will drive the isolation plate 3 to move. In this way, by driving the transmission screw 6 to rotate through the servo motor 8, the position of the isolation plate 3 can be precisely controlled to achieve the function of blocking or exposing the magnet unit 2. The laser displacement sensor 11 can monitor the position change of the transmission block 7 in real time and transmit the signal to the external control system to achieve precise control of the position of the isolation plate 3.

[0067] The isolation plate 3 has a laminated ferromagnetic matrix 4 embedded inside. The laminated ferromagnetic matrix 4 is made of silicon steel sheets tightly bonded together by a lamination process. It has good magnetic permeability and low hysteresis loss, forming stable magnetic properties. The laminated ferromagnetic matrix 4 and the permanent magnet 202 of the magnet unit 2 form a magnetic structure. When the permanent magnet 202 rotates, the magnetic field generated will interact with the ferromagnetic matrix in the isolation plate 3, changing the magnetic field environment around the isolation plate 3.

[0068] The surface of the isolation plate 3 is coated with multiple composite films to enhance its performance and adaptability. The nickel-iron alloy layer 901, as a layer in direct contact with the ferromagnetic substrate, has good magnetic and mechanical properties, enhancing the magnetic interaction between the isolation plate 3 and the magnet unit 2. The silicon dioxide insulating layer 902, located outside the nickel-iron alloy layer 901, acts as an insulating barrier, effectively isolating the nickel-iron alloy layer 901 from direct contact with the external environment and preventing chemical or electrochemical corrosion. The outermost graphene conductive layer 903 imparts certain conductivity to the isolation plate 3, while also possessing good mechanical strength and chemical stability. These films together enhance the overall performance of the isolation plate 3.

[0069] In addition, the edge of the isolation plate 3 is covered with a non-magnetic protective layer 10, which is made of zirconium oxide ceramic material and has extremely high hardness, wear resistance and corrosion resistance; the micron-level concave-convex texture design on the surface of the protective layer enhances its durability and anti-slip properties, ensuring the long-term stable operation of the anti-adsorption mechanism of the isolator.

[0070] The magnet unit 2 uses neodymium iron boron magnets to ensure strong magnetic attraction and stable magnetic interaction with the isolation plate 3. At the same time, the magnet unit 2 adopts a Halbach array arrangement. By precisely controlling the polarity and direction of the magnets, the magnetic field is enhanced in a specific direction and weakened or canceled in other directions, which improves the magnetic field efficiency of the magnet unit 2 and reduces magnetic field leakage and interference.

[0071] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0072] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0073] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0074] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An isolator anti-adsorption mechanism with magnets, characterized in that, include: The isolator frame has multiple magnet units arranged on its outer side; Each magnet unit includes: A U-shaped mounting base located on the outside of the isolator frame; A permanent magnet is mounted on the outside of the mounting base via a bearing. The permanent magnet is a multi-pole magnetized cylinder. A stepper motor is installed inside the mounting base, and the output shaft of the stepper motor is fixedly connected to the rotating shaft of the permanent magnet through a flange coupling; A transmission device located beside the isolator body; and An isolation plate located at the moving end of the transmission device; The isolation plate has a laminated ferromagnetic matrix embedded inside, and the ferromagnetic matrix and the magnet unit form a magnetic structure.

2. The isolator anti-adsorption mechanism with magnets as described in claim 1, characterized in that, The transmission device includes: A fixed seat, a transmission screw that rotates between the fixed seats via bearings, a transmission block that is threaded onto the transmission screw, and a sliding engagement between the transmission block and the fixed seat; The servo motor is located on the end of the fixed base, and the output shaft of the servo motor is fixedly connected to the end of the transmission screw through a flexible coupling; The isolation plate is connected to the transmission block.

3. The isolator anti-adsorption mechanism with magnets as described in claim 1, characterized in that, A gradient composite film is deposited on the surface of a laminated ferromagnetic substrate. The gradient composite film consists of a nickel-iron alloy layer, a silicon dioxide insulating layer, and a graphene conductive layer, from the inside out.

4. The isolator anti-adsorption mechanism with magnets as described in claim 3, characterized in that, The laminated ferromagnetic matrix is ​​made of stacked silicon steel sheets, and the surface of the isolation plate is coated with a non-magnetic protective layer, which is a nano-ceramic composite material.

5. The isolator anti-adsorption mechanism with magnets as described in claim 1, characterized in that, The permanent magnets are neodymium iron boron magnets, and the polarity of adjacent permanent magnets is arranged in a Halbach array.

6. The isolator anti-adsorption mechanism with magnets as described in claim 4, characterized in that, A non-magnetic protective layer covers the edge of the isolation plate. The material is zirconia ceramic, and the surface has micron-level textured surface.

7. The isolator anti-adsorption mechanism with magnets as described in claim 1, characterized in that, A laser displacement sensor is installed on the outside of the transmission block.

8. The isolator anti-adsorption mechanism with magnets as described in claim 1, characterized in that, The isolator frame has a magnetic shielding layer inside.

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