Novel permanent magnet 258-degree deflection dipolar magnet structure

Abstract

The utility model discloses a novel permanent magnet 258-degree deflection dipolar magnet structure, which relates to the technical field of magnet structures and comprises two half iron cores which are connected together through a screw. Each half iron core comprises an upper iron yoke, a base, a first permanent magnet block, a second permanent magnet block, a split type iron core frame, an upper pole head and a magnetic block pressing plate, the first permanent magnet block is installed in the upper iron yoke, the base is arranged at the upper end of the upper iron yoke, the upper pole head is arranged at the upper end of the first permanent magnet block, the split type iron core frame is arranged on the periphery of the upper pole head, and the magnetic block pressing plate is arranged in the split type iron core frame. A plurality of second permanent magnets are arranged on the inner side of the split type iron core frame, and magnetic block pressing plates are arranged at the upper ends of the second permanent magnets and connected with the base. According to the utility model, the first permanent magnet block and the second permanent magnet block are adopted, an external power supply is not needed, the initial investment cost of equipment is reduced, and the maintenance cost and the downtime caused by faults of the power supply and the water cooling system are also reduced.

Description

Technical Field

[0001] This utility model relates to the field of magnet structure technology, and in particular to a novel permanent magnet 258-degree deflection dipole magnet structure. Background Technology

[0002] In numerous fields involving magnetic field applications, particularly in large-scale scientific research equipment such as particle accelerators and synchrotron radiation sources, deflecting dipole magnets play a crucial role in precisely controlling the trajectory of charged particle beams. Traditional ordinary electromagnetic deflecting magnets primarily rely on saddle-shaped electromagnetic coils wound around C- or H-shaped silicon steel yokes. Their working principle involves controlling the current through an external power supply, using the magnetic field generated by the current to deflect the particle beam.

[0003] However, traditional electromagnetic deflectors consume extremely high amounts of energy due to the need for a continuous external power supply and current regulation. During prolonged operation, they consume a large amount of electrical energy, increasing operating costs. Secondly, their complete reliance on an external power source exposes them to the risk of power outages. In the event of a power failure, the magnetic field disappears immediately, potentially severely impacting ongoing experiments or production processes. Utility Model Content

[0004] The purpose of this invention is to provide a novel permanent magnet 258-degree deflection dipole magnet structure to solve the above-mentioned technical problems.

[0005] The technical solution adopted by this utility model is as follows: A novel permanent magnet 258-degree deflection diode structure includes two half-cores, which are connected together by a screw; each half-core includes an upper yoke, a base, a first permanent magnet block, a second permanent magnet block, a split core frame, an upper pole head, and a magnetic block pressure plate. The first permanent magnet block is installed inside the upper yoke, and the base is provided at one end of the upper yoke. The upper pole head is provided at the upper end of the first permanent magnet block, and the split core frame is provided around the upper pole head. A plurality of second permanent magnet blocks are provided on the inner side of the split core frame, and the magnetic block pressure plate is provided at the upper end of the plurality of second permanent magnet blocks. The magnetic block pressure plate is connected to the base.

[0006] Preferably, a locking mechanism is also included, which is disposed around the periphery of the first permanent magnet block and is used to lock the first permanent magnet block inside the upper yoke.

[0007] As a further preferred embodiment, the upper end of the upper yoke is provided with a first mounting groove, a first notch is provided on one side of the first mounting groove, a second mounting groove is provided on the bottom wall of the first mounting groove, a third mounting groove is provided on the upper periphery of the first mounting groove, and the first permanent magnet is installed in the second mounting groove.

[0008] As a further preferred embodiment, the locking mechanism includes a first baffle, a top plate, and a first fixing member. The first baffle is disposed on one side of the first permanent magnet block and located in the second mounting groove, and is positioned close to the first notch. The top plate is disposed on the upper periphery of the first permanent magnet block and is connected to the upper yoke through the first fixing member.

[0009] As a further preferred embodiment, the split-type iron core frame includes several positioning blocks, which are distributed in a fan shape on the upper end of the top plate, and a first positioning groove is formed between two adjacent positioning blocks to install the second permanent magnet block. The lower end of the positioning block is connected to the top plate through a positioning pin.

[0010] As a further preferred embodiment, the base also includes a stop block, wherein a second notch is provided on one side of the base, the stop block is disposed in the second notch and is connected to the base by a second fixing member, and the stop block is connected to the upper electrode head by a third fixing member.

[0011] As a further preferred embodiment, a second baffle is also included, wherein the second baffle is provided on the side of the baffle near the first permanent magnet block, the second baffle abuts against one side of the first permanent magnet block, and a second positioning groove is formed between the baffle and the adjacent positioning block.

[0012] As a further preferred embodiment, the locking mechanism further includes a positioning plate, which is disposed at the lower end of the top plate, with one side of the positioning plate abutting against the inner wall of the first mounting groove and the other side of the positioning plate abutting against the outer wall of the first permanent magnet block.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] (1) In this utility model, the two half-cores are connected by screws, and the half-cores can be disassembled individually for repair or replacement of parts without the need for large-scale disassembly of the entire magnet.

[0015] (2) In this utility model, the first permanent magnet block and the second permanent magnet block are used, which eliminates the need for an external power supply, reduces the initial investment cost of the equipment, and also reduces the maintenance cost and downtime caused by power supply and water cooling system failures.

[0016] (3) In this utility model, the first permanent magnet block is fixed in multiple directions by the locking mechanism, and the second permanent magnet block is accurately positioned and firmly fixed by the split iron core frame, the stop block and the second stop plate, so that the permanent magnet block will not be displaced during long-term use, and the stability of the magnetic field is greatly improved. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the novel permanent magnet 258-degree deflection dipole magnet in this utility model;

[0018] Figure 2 This is a schematic diagram of the permanent magnet deflection diode magnetic block mounting structure in this utility model;

[0019] Figure 3 This is an exploded schematic diagram of the permanent magnet deflecting diode magnetic block installation structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the upper iron yoke in this utility model;

[0021] Figure 5 This is a schematic diagram of the base structure in this utility model.

[0022] In the diagram: 1. Upper yoke; 101. First mounting slot; 102. Second mounting slot; 103. Third mounting slot; 2. Base; 3. First permanent magnet; 4. Second permanent magnet; 5. Locking mechanism; 501. First baffle; 502. Top plate; 503. First fixing component; 504. Positioning plate; 6. Split-type iron core frame; 601. Positioning block; 602. Positioning pin; 7. Upper pole head; 8. Magnetic block pressure plate; 9. Block; 10. Second fixing component; 11. Second baffle; 12. Fourth fixing component; 13. Third fixing component; 14. Screw. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figures 1 to 5 The diagram illustrates a preferred embodiment of a novel permanent magnet 258-degree deflection diode structure, comprising two half-cores connected together by a screw 14. Each half-core includes an upper yoke 1, a base 2, a first permanent magnet block 3, a second permanent magnet block 4, a split-type core frame 6, an upper pole head 7, and a magnetic block pressure plate 8. The first permanent magnet block 3 is installed inside the upper yoke 1, and the base 2 is located at one end of the upper yoke 1. The upper pole head 7 is located at the upper end of the first permanent magnet block 3, and the split-type core frame 6 is located around the upper pole head 7. Several second permanent magnet blocks 4 are located inside the split-type core frame 6, and the magnetic block pressure plate 8 is located at the upper end of each of the second permanent magnet blocks 4. The magnetic block pressure plate 8 is connected to the base 2. In this embodiment, the two half-cores are connected by the screw 14, enhancing the stability of the entire magnet structure and enabling it to withstand external forces such as vibrations during equipment operation, thus reducing magnetic field fluctuations caused by structural instability. Meanwhile, the split design makes it easy to disassemble and maintain individual half-cores when needed, reducing maintenance difficulty and improving maintenance efficiency.

[0027] In this embodiment, the upper yoke 1 is a hexagonal shape with an opening on one side. It is made of non-magnetic aluminum alloy partition. A first permanent magnet block 3 after being magnetized is installed inside the upper yoke 1, and the first permanent magnet block 3 is arranged in a fan shape. A second permanent magnet block 4 after being magnetized is arranged inside the split iron core frame 6, and several second permanent magnet blocks 4 are distributed in a fan shape. Then, the two half iron cores are connected together by screws 14, and finally a permanent deflection magnetic field is generated.

[0028] Furthermore, as a preferred embodiment, a locking mechanism 5 is also included. The locking mechanism 5 is disposed around the periphery of the first permanent magnet block 3 and is used to lock the first permanent magnet block 3 within the upper yoke 1. In this embodiment, see... Figure 3As shown, the upper end of the upper yoke 1 has a first mounting groove 101, a first notch on one side of the first mounting groove 101, a second mounting groove 102 on the bottom wall of the first mounting groove 101, and a third mounting groove 103 on the outer periphery of the upper end of the first mounting groove 101. The first permanent magnet block 3 is installed in the second mounting groove 102. The volume of the first permanent magnet block 3 is larger than that of the second permanent magnet block 4. The first permanent magnet block 3 is installed in the second mounting groove 102, which is used to position the first permanent magnet block 3. The locking mechanism 5 is used to fix the first permanent magnet block 3 and prevent it from detaching from the upper yoke 1. Since the first notch is provided on one side of the upper yoke 1, it is convenient to install the first permanent magnet block 3 and the second permanent magnet block 4. The locking mechanism 5 can prevent the first permanent magnet block 3 from detaching from the upper yoke 1 and fix the position of the first permanent magnet block 3. The split-type iron core frame 6 is used to install the second permanent magnet block 4, thereby positioning the second permanent magnet block 4. The upper pole head 7 is directly installed on the upper end of the first permanent magnet block 3, while the magnetic block pressure plate 8 is used to fix the second permanent magnet block 4 and prevent the second permanent magnet block 4 from detaching from the split-type iron core frame 6.

[0029] In this embodiment, the second mounting groove 102, the split iron core frame 6, the locking mechanism 5, and the magnetic block pressure plate 8 provide clear installation positions and fixing methods for the first permanent magnet block 3 and the second permanent magnet block 4, greatly simplifying the installation process and reducing installation difficulty. Moreover, the second mounting groove 102, the locking mechanism 5, the split iron core frame 6, and the magnetic block pressure plate 8 in the upper yoke 1 can effectively fix the positions of the first permanent magnet block 3 and the second permanent magnet block 4, avoiding mutual collisions and improper compression between the first permanent magnet block 3 and the second permanent magnet block 4, as well as between adjacent second permanent magnet blocks 4, and preventing the loss of magnetic field due to damage to the permanent magnet blocks.

[0030] In this embodiment, the locking mechanism 5 can fix the first permanent magnet block 3 in multiple directions. The first permanent magnet block 3 can maintain a stable position during long-term use, avoiding displacement caused by factors such as vibration and external force, thereby ensuring the stability and accuracy of the magnetic field.

[0031] Furthermore, as a preferred embodiment, the locking mechanism 5 includes a first baffle 501, a top plate 502, and a first fixing member 503. The first baffle 501 is disposed on one side of the first permanent magnet block 3 and located within the second mounting groove 102, close to the first notch. The top plate 502 is disposed on the upper periphery of the first permanent magnet block 3 and connected to the upper yoke 1 via the first fixing member 503. The first baffle 501 is located within the second mounting groove 102 and can be connected to the bottom wall of the second mounting groove 102 by screws, thereby locking and fixing one side of the bottom of the first permanent magnet block 3 to prevent it from detaching. The remaining bottom portion of the first permanent magnet block 3 is limited by the second mounting groove 102 to prevent the first permanent magnet block 3 from wobbling or becoming unstable during installation. The first fixing member 503 is a hexagonal screw. After passing through the top plate 502, the first fixing member 503 is threadedly connected to the bottom wall of the first mounting groove 101. The bottom wall of the first mounting groove 101 has a threaded hole that mates with the first fixing member 503. The top plate 502 provides a mounting base for the split iron core frame 6. In this embodiment, the top plate 502 is located within the third mounting groove 103 and extends into the bottom of the base 2. The bottom of the base 2 presses against the outer edge of the top plate 502 to improve its stability. In this embodiment, the base 2 and the upper yoke 1 are connected by hexagonal screws.

[0032] Furthermore, as a preferred embodiment, the split-type iron core frame 6 includes several positioning blocks 601, which are arranged in a fan shape on the upper end of the top plate 502. A first positioning groove is formed between adjacent positioning blocks 601 to install the second permanent magnet block 4. The lower end of each positioning block 601 is connected to the top plate 502 via a positioning pin 602. Several mounting holes for installing the positioning pins 602 are provided on the upper end of the top plate 502. The positioning pins 602 are fixed within the mounting holes, and the lower end of each positioning block 601 has a pin hole that mates with the positioning pin 602 to secure the positioning block 601. In this embodiment, the cross-sections of the first permanent magnet block 3 and the upper pole head 7 are both fan-shaped. A slot that mates with the upper end of the first permanent magnet block 3 is provided at the lower end of the upper pole head 7 to facilitate the installation of the upper pole head 7.

[0033] Furthermore, as a preferred embodiment, a stop block 9 is also included. A second notch is provided on one side of the base 2, and the stop block 9 is disposed within the second notch and connected to the base 2 via a second fixing member 10. The stop block 9 is connected to the upper pole head 7 via a third fixing member 13. The stop block 9 contacts the upper pole head 7, while the outer wall of the upper pole head 7 contacts several second permanent magnet blocks 4 to restrict the position of the upper pole head 7. The third fixing member 13 connects the upper pole head 7 and the stop block 9 together. The stop block 9 is connected to the base 2 via the second fixing member 10, thus fixing the position of the upper pole head 7 and preventing it from shaking. Both the second fixing member 10 and the third fixing member 13 are hexagonal screws.

[0034] Furthermore, as a preferred embodiment, a second baffle 11 is also included. The second baffle 11 is provided on the side of the stop block 9 near the first permanent magnet block 3, and the second baffle 11 abuts against one side of the first permanent magnet block 3. A second positioning groove is formed between the stop block 9 and the adjacent positioning block 601. One side of the second baffle 11 is connected and fixed to the stop block 9. The provision of the second baffle 11 can limit the position of the first permanent magnet block 3, and in conjunction with the provision of the first baffle 501, the position of the first permanent magnet block 3 is fixed. Then, in conjunction with the provision of the upper pole head 7, the overall position of the first permanent magnet block 3 is fixed.

[0035] Furthermore, as a preferred embodiment, the magnetic block pressure plate 8 is located on the outer edge of the upper pole head 7 and connected to the base 2 via the fourth fixing member 12. The fourth fixing member 12 can be a hexagonal screw, used to connect the magnetic block to the base 2, thereby fixing the position of the second permanent magnet block 4.

[0036] Furthermore, as a preferred embodiment, the locking mechanism 5 also includes a positioning plate 504. The positioning plate 504 is disposed at the lower end of the top plate 502, with one side of the positioning plate 504 abutting against the inner wall of the first mounting groove 101 and the other side abutting against the outer wall of the first permanent magnet block 3. The positioning plate 504 is mounted on the first fixing member 503, located within the first mounting groove 101, and abuts against both the inner wall of the first mounting groove 101 and the outer wall of the first permanent magnet block 3. This fixes the first permanent magnet block 3, preventing it from moving radially upwards. The positioning plate 504 and the first fixing member 503 can be threaded together, with the first fixing member 503 penetrating through the positioning plate 504.

[0037] In this embodiment, the first permanent magnet block 3 is arranged in a fan shape, several second permanent magnet blocks 4 are distributed in a fan shape, and the upper yoke 1 and base 2 are also arranged in a fan shape, with a central angle of 258 degrees. The arrangement of the first permanent magnet block 3, the second permanent magnet blocks 4, and the upper pole head 7 can generate a magnetic field with a specific direction and intensity, providing a precise deflection force for the particle beam. Placing the first permanent magnet block 3 at the lower end of the upper pole head 7 helps to optimize the magnetic field distribution and enhance the uniformity of the magnetic field.

[0038] In this implementation, the first permanent magnet block 3 and the second permanent magnet block 4 are made of neodymium iron boron material, replacing the traditional electromagnetic coil and eliminating the high energy consumption problem caused by the energization of the electromagnetic coil. Furthermore, this setup does not require external power supply, eliminating the risk of power outages and improving the reliability of the magnets in long-cycle operation scenarios with a fixed energy beam. In addition, the 258-degree deflection diode permanent magnet structure adopts a fan-shaped modular design, making its structure more compact, effectively reducing its size, and facilitating disassembly and installation, thus simplifying maintenance.

[0039] In use, the upper yoke 1 is first bolted onto an external reference platform. Then, the first permanent magnet block 3 is installed in the second mounting groove 102 on the upper yoke 1 and initially fixed using the first baffle 501. Next, the positioning plate 504 is connected and fixed to the upper yoke 1 using the first fixing member 503. Then, the positioning block 601 is installed using the positioning pin 602, forming a first positioning groove between adjacent positioning blocks 601. The upper pole head 7 is then installed at the upper end of the first permanent magnet block 3, positioned within a fan-shaped area enclosed by several positioning blocks 601. The base 2 is then installed at the upper end of the upper yoke 1. The baffle 9 is then installed on the base 2 using the second fixing member 10, so that the second baffle 11 abuts against one side of the outer wall of the first permanent magnet block 3. Finally, the upper pole head 7 is connected and fixed using the third fixing member 13, thus completing the fixing of the first permanent magnet block 3 and the upper pole head 7. Then, the positioning plate is fixed to the upper end of the base 2 with bolts or screws. Then, several second permanent magnet blocks 4 are slowly installed in the corresponding first positioning groove and second positioning groove. With the help of external tools, the second permanent magnet blocks 4 are completely pressed into the corresponding first positioning groove or second positioning groove.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel permanent magnet 258-degree deflection dipole magnet structure, characterized in that, The device includes two half-cores connected together by a screw. Each half-core includes an upper yoke, a base, a first permanent magnet block, a second permanent magnet block, a split core frame, an upper pole head, and a magnetic block pressure plate. The first permanent magnet block is installed inside the upper yoke, and the base is located at one end of the upper yoke. The upper pole head is located at the upper end of the first permanent magnet block, and the split core frame is located around the upper pole head. Several second permanent magnet blocks are located inside the split core frame, and the magnetic block pressure plate is located at the upper end of the several second permanent magnet blocks. The magnetic block pressure plate is connected to the base.

2. The novel permanent magnet 258-degree deflection diode structure as described in claim 1, characterized in that, It also includes a locking mechanism, which is disposed around the first permanent magnet block and is used to lock the first permanent magnet block inside the upper yoke.

3. The novel permanent magnet 258-degree deflection diode structure as described in claim 2, characterized in that, The upper end of the upper yoke is provided with a first mounting groove, a first notch is provided on one side of the first mounting groove, a second mounting groove is provided on the bottom wall of the first mounting groove, a third mounting groove is provided on the upper periphery of the first mounting groove, and the first permanent magnet is installed in the second mounting groove.

4. The novel permanent magnet 258-degree deflection diode structure as described in claim 3, characterized in that, The locking mechanism includes a first baffle, a top plate, and a first fixing member. The first baffle is located on one side of the first permanent magnet block and in the second mounting groove, and is positioned close to the first notch. The top plate is located on the upper periphery of the first permanent magnet block and is connected to the upper yoke through the first fixing member.

5. The novel permanent magnet 258-degree deflection diode structure as described in claim 4, characterized in that, The split-type iron core frame includes several positioning blocks, which are distributed in a fan shape on the upper end of the top plate. A first positioning groove is formed between two adjacent positioning blocks to install the second permanent magnet block. The lower end of the positioning block is connected to the top plate through a positioning pin.

6. The novel permanent magnet 258-degree deflection diode structure as described in claim 5, characterized in that, It also includes a stop block. A second notch is provided on one side of the base. The stop block is located in the second notch and is connected to the base through a second fixing member. The stop block is connected to the upper pole head through a third fixing member.

7. The novel permanent magnet 258-degree deflection diode structure as described in claim 6, characterized in that, It also includes a second baffle, which is provided on the side of the block near the first permanent magnet block. The second baffle abuts against one side of the first permanent magnet block, and a second positioning groove is formed between the block and the adjacent positioning block.

8. The novel permanent magnet 258-degree deflection diode structure as described in claim 4, characterized in that, The locking mechanism further includes a positioning plate, which is disposed at the lower end of the top plate, with one side of the positioning plate abutting against the inner wall of the first mounting groove and the other side of the positioning plate abutting against the outer wall of the first permanent magnet block.

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