Half-moon-shaped magnet structure

Abstract

The utility model relates to the technical field of magnet structures, and particularly discloses a half-moon-shaped magnet structure which comprises an arc-shaped magnet piece, the end faces of the two ends, away from each other, of the magnet piece are located on a first arc face and a second arc face respectively, the radian of the first arc face is the same as that of the second arc face, and the first arc face and the second arc face form a concentric ring structure. The first cambered surface is used for being attached to the outer side face of an external cylinder, and the second cambered surface is used for being matched with the external arc-shaped outer wall; the first cambered surface and the second cambered surface are matched so that the magnetic block piece can be well matched in a specific arc-shaped structure, the concentric ring structure formed by the first cambered surface and the second cambered surface enables magnetic lines to be evenly distributed, the magnetic field can be accurately controlled, and the stability of the magnetic field is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnet structure technical field especially discloses a half moon type magnet structure. BACKGROUND

[0002] In many industrial and scientific research fields, there are strict requirements for the performance and applicability of magnet structures. Traditional magnets are often regular blocks or simple geometric shapes, which have limitations in magnetic field distribution regulation and control, making it difficult to precisely focus the magnetic field and form a stable and uniform magnetic field region. At the same time, the structure lacks effective design to adapt to special space layout, and when installed in circular or arc-shaped equipment, it cannot fully utilize the space, affecting the improvement of equipment power density. Moreover, the past magnet has weak resistance to external force impact and environmental erosion, and is easily deformed and damaged under frequent stress, which limits the large-scale and efficient application of the magnet, and the magnet structure design needs to be innovated and optimized. SUMMARY

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a half moon type magnet structure.

[0004] To achieve the above-mentioned purpose, the half moon type magnet structure of the utility model comprises a magnetic block piece, the magnetic block piece is arc-shaped, the end faces of the two ends of the magnetic block piece away from each other are located on a first arc surface and a second arc surface respectively, the curvature of the first arc surface is the same as that of the second arc surface, the first arc surface and the second arc surface form a concentric ring structure, the first arc surface is used for adhering to the outer side surface of a cylindrical body in the external environment, and the second arc surface is used for cooperating with the arc-shaped outer wall in the external environment.

[0005] The first arc surface is used for adhering to the outer side surface of a cylindrical body in the external environment, and due to the arc-shaped design, it can be in close contact with the surface of the cylindrical body. This makes the magnet better adapt to the shape of the cylindrical body, and compared with other shaped magnets (such as square magnets), it can effectively reduce the gap caused by shape mismatch. For example, in some motor equipment, if the magnet needs to adhere to the rotor of the motor (which is usually cylindrical in shape), the first arc surface of this half moon type magnet can provide a larger contact area, thereby enhancing the magnetic force coupling effect between the magnet and the rotor. The second arc surface is used for cooperating with the arc-shaped outer wall in the external environment, and this design makes the magnet more convenient when installed in a device with an arc-shaped structure. For example, in some electromagnetic driving devices with an arc-shaped track, the second arc surface of the half moon type magnet can well cooperate with the arc-shaped inner wall of the track, ensuring that the magnet can stably run along the arc-shaped track during movement, and can fully utilize the space of the arc-shaped track, improving the space utilization of the device.

[0006] The first and second arc surfaces are formed into a concentric ring structure, which helps to distribute the magnetic field uniformly. Because the concentric ring structure makes the magnetic field of the magnet more symmetrical in space, it is very advantageous in some application scenarios that require precise control of the direction and strength of the magnetic field. For example, in the application of magnetic sensors, uniform magnetic field distribution can improve the accuracy and stability of sensor detection. When multiple such half-moon type magnets are used in combination, due to their concentric ring structure, it is easier to build a complex but orderly magnetic field environment. For example, in magnetic levitation devices, by reasonably arranging the half-moon type magnets, a stable levitation magnetic field can be formed, allowing the levitated object to levitate in a more stable state.

[0007] Further, the number of magnetic block pieces is two, and the two magnetic block pieces are a first magnetic block and a second magnetic block, the structure of the first magnetic block is the same as that of the second magnetic block, and the first magnetic block and the second magnetic block are provided with magnetic surfaces that are attached to each other, and the first magnetic block and the second magnetic block combine to form a half-ring structure.

[0008] Because the number of magnetic block pieces is two, i.e. the first magnetic block and the second magnetic block, and they combine to form a half-ring structure. When the two magnetic blocks are attached together, their magnetic fields will superimpose each other. For example, in some application scenarios that require a strong magnetic field, such as the local magnetic field enhancement component of a magnetic resonance imaging (MRI) device, this half-ring structure formed by the combination of two magnetic blocks can generate a stronger magnetic field in a specific area than a single magnetic block. Because the magnetic field directions of the two magnetic blocks can be designed to be in the same direction (such as making the magnetic poles of the magnetic surfaces meet the superposition enhancement requirements), the magnetic field strength can be effectively improved to meet the application requirements of higher magnetic field strength. The first magnetic block and the second magnetic block are provided with magnetic surfaces that are attached to each other and form a half-ring structure, which helps to improve the stability of the magnetic field. Compared with a single magnetic block, the half-ring structure makes the distribution of the magnetic field in space more regular and stable. In some precision instruments or devices that require a continuous and stable magnetic field, such as high-precision magnetic compasses, this half-ring structure composed of two magnetic blocks can reduce the interference of external factors (such as slight vibration, temperature change, etc.) on the magnetic field, thereby ensuring that the instrument can accurately perceive the direction of the magnetic field and maintain a stable working state.

[0009] The first magnetic block and the second magnetic block combine to form a half-ring structure, making the entire magnet more complete and regular in shape. This completeness is very important in some applications that require precise matching with other components. For example, in some mechanical transmission devices, if the magnetic force of the magnet is needed to achieve contactless transmission between transmission components, the half-ring structure of the magnet can better match the corresponding arc-shaped structure on the transmission component, ensuring effective transmission of magnetic force during transmission and improving the stability and reliability of the entire transmission system. The half-ring structure composed of two magnetic blocks provides convenience for constructing a ring-shaped magnet structure. A complete ring-shaped magnet can be easily formed by combining two such half-ring structures together. This ring-shaped magnet has a wide range of applications in many fields.

[0010] Further, the magnetic surface of the first magnetic block and the magnetic surface of the second magnetic block are N-pole and S-pole respectively, and the magnetic surface of the first magnetic block and the magnetic surface of the second magnetic block are adsorbed and attached together.

[0011] Because the magnetic surface of the first magnetic block is N-pole and the magnetic surface of the second magnetic block is S-pole, and they are adsorbed and attached together, the characteristic of opposite magnetic poles attracting each other forms a very strong magnetic force coupling between the two magnetic blocks. In actual applications, such as in some equipment that requires close fixation of the magnet assembly, such as the magnetic closure device of the shell of some high-precision electronic instruments, this strong magnetic force coupling can ensure that the first magnetic block and the second magnetic block are closely attached and cannot be easily separated due to slight shaking or shaking of the external environment. The setting of opposite magnetic poles attracting each other makes the magnetic field distribution of the two magnetic blocks combined more stable. When the first magnetic block and the second magnetic block are adsorbed together to form a half-ring structure, their magnetic field lines will form a continuous and orderly distribution at the magnetic surface attachment. Compared with the opposite setting of the same magnetic poles (which will cause the magnetic fields to repel each other and the distribution to be disorderly), this N-pole and S-pole adsorbed and attached manner allows the magnetic field to be more uniformly and stably distributed throughout the half-ring structure and the surrounding space. In application scenarios involving electromagnetic induction, such as some components of electromagnetic generators or electromagnetic induction heating equipment, this N-pole and S-pole adsorbed and attached half-moon type magnet structure can bring advantages.

[0012] When the magnetic field changes (such as the magnet cutting the magnetic induction lines relative to the conductor), due to the stable and orderly magnetic field between the two magnetic blocks, a more stable and predictable induced electromotive force can be generated in the conductor. Stable magnetic field and strong magnetic force coupling help to reduce unnecessary energy loss. Because the magnetic blocks are closely adsorbed and the magnetic field is stable, during the interaction between the magnet and other related components (such as the driven magnetic object or conductor in an electromagnetic drive device), additional energy consumption caused by magnetic field disorder or magnet separation can be avoided. This half-moon type magnet structure with a specific magnetic pole arrangement has strong application flexibility. It can be easily integrated into various applications that require specific magnetic pole configurations and magnetic field strengths.

[0013] Further, the half-moon type magnet structure further comprises a shielding cover, the first magnetic block and the second magnetic block are contained in the shielding cover, the magnetic property of the magnetic surface of the first magnetic block and the magnetic property of the magnetic surface of the second magnetic block are both N level or S level, the magnetic surface of the first magnetic block and the magnetic surface of the second magnetic block are abutted together, the shielding cover is arranged on the outer periphery of the first magnetic block and the second magnetic block, and the shielding cover is provided with an open slot exposing the first magnetic block and the second magnetic block.

[0014] The shielding cover can effectively shield the magnetic field generated by the first magnetic block and the second magnetic block. In some application scenarios that are sensitive to the magnetic field environment, such as computer rooms, communication base stations and the like, if the magnetic field of the magnet spreads outward uncontrollably, it may interfere with the normal operation of other electronic devices around it. By containing the first magnetic block and the second magnetic block in the shielding cover, the shielding cover can limit the magnetic field within a certain range, reduce the magnetic field interference to the external environment, and ensure that the surrounding electronic devices can work normally. The shielding cover is provided with an open slot exposing the first magnetic block and the second magnetic block. By reasonably designing the size, shape and position of the open slot, the magnetic field of the magnet can be accurately controlled. Only the part of the magnetic field that is needed is allowed to pass through the open slot, so as to form the required magnetic field distribution in a certain area. For example, in some high-precision magnetic field positioning devices, by adjusting the parameters of the open slot, the magnetic field that passes through the open slot can be accurately applied to the target area, thereby improving the magnetic field positioning accuracy of the device to the target object.

[0015] The shielding cover provides physical protection for the first magnetic block and the second magnetic block. In actual applications, the magnet may be subjected to external mechanical forces such as collision, extrusion and the like. The shielding cover can act as a protective barrier to prevent these external forces from directly acting on the magnet, thereby avoiding damage and deformation of the magnet, and prolonging the service life of the magnet. Since the first magnetic block and the second magnetic block are contained in the shielding cover, and the shielding cover has a certain restraining effect on the magnetic field, the magnetic field of the magnet combination is more stable. Even if there are some slight interference factors in the external environment (such as temperature change, slight vibration and the like), the shielding cover can maintain the stable distribution of the magnetic field inside to a certain extent, thereby ensuring the stability of the magnetic field that passes through the open slot. The magnetic property of the magnetic surface of the first magnetic block and the magnetic property of the magnetic surface of the second magnetic block are both N level or S level and are abutted together. This magnetic pole configuration has unique advantages in some applications. In some occasions where special magnetic field distribution needs to be constructed, such as in some magnetic levitation experimental devices, by reasonably arranging a plurality of half-moon type magnet structures configured in this way, the repulsive force generated by the repulsion of like magnetic poles can be used to achieve a specific levitation effect without relying on other auxiliary support structures like the attraction of unlike magnetic poles. Combined with the shielding cover and the specific magnetic pole configuration, the application flexibility of this half-moon type magnet structure is further expanded, and it can adapt to more different types of application scenarios.

[0016] Further, the first magnetic block has a first arc surface part, and the second magnetic block has a second arc surface part matched with the first arc surface part, and the first arc surface part and the second arc surface part jointly form a fan-shaped arc surface part.

[0017] The design of the fan-shaped arc surface part makes the magnetic field better focused in the arc region. Compared with the ordinary-shaped magnet, this structure can concentrate the magnetic field in a fan-shaped space range, producing a spotlight-like effect. The cooperation of the first arc surface part and the second arc surface part helps to form a relatively uniform magnetic field in the fan-shaped region. In some experiments or industrial applications that require uniform magnetic field, such as crystal growth using magnetic field, a uniform magnetic field can ensure that the crystal is subjected to consistent magnetic force during growth. The fan-shaped arc surface part makes the magnet structure well fit the surface of the arc-shaped object. Taking the design of the track of the magnetic levitation train as an example, the fan-shaped arc surface part of the half-moon-shaped magnet structure can be installed inside the track and tightly cooperate with the magnetic components at the bottom of the train. Around some electronic devices sensitive to magnetic field, magnetic field shielding is needed. The fan-shaped arc surface part of the half-moon-shaped magnet structure can be used as part of the magnetic field shielding device. By reasonably arranging multiple such magnets, the external magnetic field can be guided to bypass the sensitive equipment by using the magnetic field distribution characteristics, playing a role in protecting the equipment from magnetic field interference.

[0018] Further, the first magnetic block has a third arc surface part, and the second magnetic block has a fourth arc surface part matched with the third arc surface part, and the third arc surface part and the fourth arc surface part jointly form a semi-circular arc surface part; the fan-shaped arc surface part is located above the semi-circular arc surface part, and the fan-shaped arc surface part and the semi-circular arc surface part jointly form the half-moon-shaped arc surface part of the half-moon-shaped magnet structure.

[0019] The third arc surface part of the first magnetic block and the fourth arc surface part of the second magnetic block together form a semicircular arc surface part, and in combination with the fan-shaped arc surface part formed by the first arc surface part of the first magnetic block and the second arc surface part of the second magnetic block above, they together form a semilunar arc surface part of the semilunar magnet structure. The complete construction of the semilunar arc surface part makes it more flexible and diverse when it is adapted to various objects or components with semilunar or arc-shaped shape requirements. Whether it is matched with a semilunar shell, a track, or a mechanical structure with a similar arc-shaped contour, the magnet structure can closely fit with its precise semilunar shape. Since the semilunar arc surface part is composed of a fan-shaped arc surface part and a semicircular arc surface part, this complex arc-shaped structure will have a more precise impact on the distribution of the magnetic field inside and around the magnet. Compared with simple-shaped magnets, its magnetic field distribution will show more hierarchical and unique characteristics. Multiple semilunar magnet structures with complete semilunar arc surface parts can be combined in a very flexible and diverse way. They can be spliced according to the semilunar arc to form larger semilunar or ring-shaped magnet structures to meet the application scenarios of different sizes and shapes, or they can be combined in different arrangements in the same plane to produce diversified magnetic field effects.

[0020] Further, the first magnetic block has a first planar part connected to the fan-shaped arc surface part and a second planar part connected to the semicircular arc surface part, and the second magnetic block has a third planar part connected to the fan-shaped arc surface part and a fourth planar part connected to the semicircular arc surface part; the first planar part and the second planar part extend from the fan-shaped arc surface part and the semicircular arc surface part respectively to form a first right angle structure by vertical intersection, and the third planar part and the fourth planar part extend from the fan-shaped arc surface part and the semicircular arc surface part respectively to form a second right angle structure by vertical intersection.

[0021] The first planar part and the second planar part of the first magnetic block extend from the first arc surface part and the third arc surface part respectively to form a first right angle structure by vertical intersection, and the second magnetic block forms a second right angle structure in the same way. This right angle structure can provide clear and stable support points and positioning references when the magnetic block is combined or installed in a specific device. When the magnetic block is subjected to external force, the right angle structure formed by the vertical intersection of the planar parts helps to evenly distribute the external force to each part. Compared with simple arc-shaped or irregular-shaped magnetic blocks, this structure can better withstand pressure, tension or impact force. The transition connection of the planar part and the arc surface part and the right angle structure formed make the distribution of the magnetic field around the magnetic block have clearer boundaries. Compared with full-arc or irregular-shaped magnetic blocks with blurred boundaries, the magnetic field under this structure can be more accurately confined within the required area. The existence of the right angle structure facilitates the regulation of the direction of the magnetic field. By reasonably designing the installation direction and combination method of the magnetic block, the vertical relationship of the planar part can be used to more accurately guide and control the direction of the magnetic field.

[0022] Further, the arc surface part, the plane part and the right angle structure jointly constitute a half-moon type magnet structure.

[0023] The half-moon type magnet structure combines the arc surface part, the plane part and the right angle structure, so that the magnetic field distribution can be more accurately regulated. The arc surface part can guide the magnetic force lines to form a specific arc shape, the plane part defines and regulates the magnetic field range, and the right angle structure helps to strengthen the magnetic field boundary in a specific direction. This structure can effectively concentrate the magnetic field strength in a specific area. The arc design of the arc surface part can converge the magnetic force lines, the plane part limits the diffusion direction of the magnetic field, and the right angle structure further stabilizes the concentrated area of the magnetic field. The plane part and the right angle structure provide a stable support system for the half-moon type magnet. The plane part can be flatly attached to the external mounting surface or other components, providing a stable point of force, and the right angle structure increases the rigidity of the structure, making it less likely to deform under external force. When the half-moon type magnet is impacted by external force, the arc surface part, the plane part and the right angle structure can work together to effectively disperse stress. The arc design of the arc surface part can provide a certain degree of buffering for external force on its surface, the plane part transmits stress to a wider area, and the right angle structure enhances the structure's resistance to vertical stress.

[0024] Further, the half-moon type magnet structure further comprises a half-moon type iron sheet covering one side of the first magnetic block and the second magnetic block, the half-moon type iron sheet is used to guide and enhance the magnetic field of the magnetic block on that side, the length of the half-moon type iron sheet is the same as the sum of the lengths of the first magnetic block and the second magnetic block, the height and thickness of the half-moon type iron sheet are both smaller than the height and thickness of the first magnetic block or the second magnetic block, and the half-moon type iron sheet is provided with a positioning hole for installation and positioning with other structural members.

[0025] The half-moon type iron sheet covers one side of the magnetic block and can guide the magnetic field of the magnetic block on that side. Because of the good magnetic conductivity of the iron sheet, the magnetic field lines will tend to distribute along the iron sheet, making the originally dispersed magnetic field more concentrated after being guided by the iron sheet, achieving the effect of focusing the magnetic field. The half-moon type iron sheet can enhance the magnetic field strength of the magnetic block on its covered side. The iron sheet will be magnetized in the magnetic field, and its own magnetic field will superimpose on the original magnetic field of the magnetic block, thereby increasing the magnetic field strength on that side as a whole. The length of the half-moon type iron sheet is the same as the sum of the lengths of the first magnetic block and the second magnetic block, and the height and thickness are both smaller than the height and thickness of the first magnetic block or the second magnetic block, which makes it play an optimizing role in the magnetic field of the magnet without occupying too much space. Because the half-moon type iron sheet is relatively thin and has a small height, it has better compatibility when cooperating with surrounding components.

[0026] The positioning hole enables the semilunar iron sheet to be accurately positioned when being installed with other structural members. When assembling an equipment comprising the semilunar magnet structure and related components, the accurate cooperation of the positioning hole with the corresponding positioning protrusions or connecting members such as bolts on other structural members can ensure the accurate positioning of the semilunar iron sheet in the equipment. The installation through the positioning hole can greatly simplify the installation process. The installer does not need to spend a lot of time and effort to determine the position of the semilunar iron sheet through complex measurement and adjustment, but only needs to accurately dock the positioning hole with the corresponding installation structure to complete the installation. When the semilunar iron sheet is connected with other structural members through the positioning hole, the connection makes the combination of the components more firm. For example, in some magnetic transmission devices, the semilunar iron sheet is connected with the transmission structure through the positioning hole and the bolt, which can effectively resist the loosening or displacement of the components caused by external factors such as vibration and impact during the operation of the equipment.

[0027] Further, the surfaces of the first magnetic block and the second magnetic block are both plated with an epoxy resin layer for protection.

[0028] The epoxy resin layer can effectively prevent water vapor, oxygen and various corrosive media in the external environment from contacting the surface of the magnetic block. The neodymium iron boron magnetic block is prone to corrosion in some humid or corrosive gas environments, thereby affecting its magnetic performance and service life. During the use of the magnetic block, friction or collision with other objects may occur, resulting in surface wear. The epoxy resin layer has a certain wear resistance and can withstand a certain degree of friction without being easily damaged. Since the epoxy resin layer protects the magnetic block and reduces external interference to the magnetic block, it helps to maintain the stability of the magnetic performance of the magnetic block. The presence of the epoxy resin layer increases the overall reliability of the magnetic block. By preventing corrosion, wear and other damage to the magnetic block, the probability of failure of the magnetic block is reduced.

[0029] The semilunar magnet structure has the following advantages: excellent and stable magnetic properties, the semilunar magnet structure is combined into a semicircular structure and arc surface part design, can form a high magnetic field strength and reasonable magnetic field gradient in a local area, and the fan-shaped, semicircular arc surface part and concentric ring structure cooperate to make the magnetic field distribution coherent, the focusing effect is good, and the transition is smooth, so that a stable magnetic field can be formed; the structure is stable and durable, the right-angle structure provides stable support and positioning reference, helps to disperse external force and control the direction of the magnetic field, the plane part cooperates with the arc surface part to stabilize the whole, and defines the range of the magnetic field, the epoxy resin layer isolates water vapor, is corrosion-resistant and wear-resistant, maintains the stability of the magnetic properties, improves the reliability, and prolongs the service life of the magnetic block; the adaptability and practicality are strong, the semilunar shape fits the circular or arc equipment space, and the semilunar iron sheet guides the enhanced magnetic field and has good compatibility, the positioning hole is convenient for accurate installation and stable connection, the magnetic block is made of neodymium iron boron material and has strong magnetic energy and stability, and the unified material structure reduces cost and increases efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the whole structure schematic view of the magnetic block piece of the half moon type magnet structure;

[0031] Figure 2 It is the structure schematic view of the first magnetic block and the second magnetic block;

[0032] Figure 3 It is the second structure schematic view of the first magnetic block and the second magnetic block;

[0033] Figure 4 It is the structure schematic view of the magnetic block and the shielding cover of the utility model;

[0034] Figure 5 It is the structure schematic view of the half moon type iron sheet and the magnetic block of the utility model;

[0035] Figure 6 It is the structure schematic view of the epoxy resin layer and the magnetic block of the utility model.

[0036] The reference signs include: 10, magnetic block piece; 11, first arc surface; 12, second arc surface; 101, first magnetic block; 1011, first arc surface part; 1012, third arc surface part; 1013, first plane part; 1014, second plane part; 102, second magnetic block; 1021, second arc surface part; 1022, fourth arc surface part; 1023, third plane part; 1024, fourth plane part; 103, half moon type arc surface part; 1031, fan type arc surface part; 1032, half circle type arc surface part; 2, shielding cover; 21, opening slot; 3, half moon type iron sheet; 31, positioning hole; 4, epoxy resin layer. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with embodiments and drawings, and the content mentioned in the embodiments is not a limitation on the utility model.

[0038] Please refer to Figures 1 to 6 As shown in the figure, the utility model discloses a half moon type magnet structure, which comprises a magnetic block piece 10, the magnetic block piece 10 is arc-shaped, the end faces of the two ends of the magnetic block piece 10 away from each other are located at a first arc surface 11 and a second arc surface 12 respectively, the curvature of the first arc surface 11 is same with the curvature of the second arc surface 12, the first arc surface 11 and the second arc surface 12 are formed into a concentric ring structure, the first arc surface 11 is used for sticking to the outside of the cylindrical body of the outside, and the second arc surface 12 is used for cooperating with the arc-shaped outer wall of the outside.

[0039] In actual use, the first arc surface 11 is used to fit the outer side of the external cylinder. Due to its arc design, it can be in close contact with the surface of the cylinder. This makes the magnet better adapt to the shape of the cylinder, effectively reducing the gap caused by shape mismatch compared to other shaped magnets (such as square magnets). For example, in some motor equipment, if the magnet needs to fit the rotor of the motor (usually cylindrical in shape), the first arc surface 11 of this half-moon type magnet can provide a larger contact area, thereby enhancing the magnetic force coupling effect between the magnet and the rotor. The second arc surface 12 is used to match the arc-shaped outer wall of the external environment. This design makes it easier for the magnet to be installed in devices with arc-shaped structures. For example, in some electromagnetic driving devices with arc-shaped tracks, the second arc surface 12 of the half-moon type magnet can well match the arc-shaped inner wall of the track, ensuring that the magnet can run stably along the arc-shaped track during movement, and can fully utilize the space of the arc-shaped track, improving the space utilization of the device.

[0040] In actual use, the first arc surface 11 and the second arc surface 12 form a concentric ring structure, which helps to evenly distribute the magnetic lines. Because the concentric ring structure makes the distribution of the magnet's magnetic field in space more symmetrical, it is very advantageous in some application scenarios that require precise control of the direction and strength of the magnetic field. For example, in the application of magnetic sensors, uniform magnetic field distribution can improve the accuracy and stability of sensor detection. When multiple such half-moon type magnets are used in combination, due to their concentric ring structure, it is easier to construct a complex but orderly magnetic field environment. For example, in magnetic levitation devices, by arranging the half-moon type magnets reasonably, a stable levitation magnetic field can be formed, allowing the levitated object to levitate in a more stable state.

[0041] In this embodiment, the bearing body of the external environment is provided with a circular groove and a cylinder located in the circular groove, and the magnetic block 10 is located in the circular groove. The first arc surface 11 is in contact with the outer side of the cylinder, and the second arc surface 12 cooperates with the groove wall of the circular groove, so that the magnetic block can rotate freely in the circular groove. The magnetic block 10 is tightly fitted by the cooperation of the first arc surface 11 and the cylinder, and the second arc surface 12 and the groove wall of the circular groove, and can be stably placed in the groove. Even if there is vibration or other interference during equipment operation, the position can be relatively stable, reducing the risk of displacement and loosening. The characteristic of being able to rotate freely in the circular groove expands its application mode. In the electromagnetic driving scene, the magnetic block 10 is driven to rotate by external magnetic field changes or current control, easily converting the direction and point of action of the magnetic force, meeting the needs of sensor angle adjustment and power transmission direction switching. The combination of stable installation and flexible rotation ensures that the magnetic force generated by the magnetic block 10 can act accurately and continuously on the target area, avoiding the dispersion or weakening of the magnetic force caused by improper installation and jamming, and improving the overall working efficiency and performance of the electromagnetic equipment.

[0042] Specifically, the number of magnetic block pieces 10 is two, and the two magnetic block pieces 10 are respectively a first magnetic block 101 and a second magnetic block 102. The first magnetic block 101 and the second magnetic block 102 have the same structure, and are provided with magnetic surfaces that are attached to each other. The first magnetic block 101 and the second magnetic block 102 are combined to form a half-ring structure.

[0043] In actual use, since the number of magnetic block pieces 10 is two, that is, the first magnetic block 101 and the second magnetic block 102, and they are combined to form a half-ring structure. When the two magnetic blocks are attached together, their magnetic fields will superimpose on each other. For example, in some application scenarios that require a strong magnetic field, such as the local magnetic field enhancement component of a magnetic resonance imaging (MRI) device, this half-ring structure formed by two magnetic blocks can generate a stronger magnetic field in a specific area than a single magnetic block. Because the magnetic field directions of the two magnetic blocks can be designed to superimpose in the same direction (such as arranging the magnetic poles of the magnetic surfaces to meet the superposition enhancement requirements), the magnetic field strength can be effectively improved to meet the application requirements of higher magnetic field strength. The first magnetic block 101 and the second magnetic block 102 are provided with magnetic surfaces that are attached to each other and form a half-ring structure. This relatively fixed and close combination helps to improve the stability of the magnetic field. Compared with a single magnetic block, the half-ring structure makes the distribution of the magnetic field in space more regular and stable. In some precision instruments or devices that require a continuous and stable magnetic field, such as high-precision magnetic compasses, this half-ring structure composed of two magnetic blocks can reduce the interference of external factors (such as slight vibration, temperature change, etc.) on the magnetic field, thereby ensuring that the instrument can accurately perceive the direction of the magnetic field and maintain a stable working state.

[0044] In actual use, the first magnetic block 101 and the second magnetic block 102 are combined to form a half-ring structure, making the entire magnet more complete and regular in shape. This completeness is very important in some applications that require precise cooperation with other components. For example, in some mechanical transmission devices, if it is necessary to use the magnetic force of the magnet to achieve contactless transmission between transmission components, the half-ring structure magnet can better match the corresponding arc-shaped structure on the transmission component, ensuring effective transmission of magnetic force during transmission and improving the stability and reliability of the entire transmission system. The half-ring structure composed of two magnetic blocks provides convenience for constructing a ring-shaped magnet structure. Two such half-ring structures can be combined together to easily form a complete ring-shaped magnet. This ring-shaped magnet has a wide range of applications in many fields.

[0045] Specifically, the magnetic properties of the magnetic surface of the first magnetic block 101 and the magnetic surface of the second magnetic block 102 are respectively N-pole and S-pole. The magnetic surface of the first magnetic block 101 and the magnetic surface of the second magnetic block 102 are attached together.

[0046] In actual use, because the magnetic surface of the first magnetic block 101 is N-pole, the magnetic surface of the second magnetic block 102 is S-pole, and the two are adsorbed and attached together, the characteristics of the opposite magnetic poles attracting each other form a very strong magnetic force coupling between the two magnetic blocks. In actual application, such as in some devices that require close fixation of the magnet assembly, such as the magnetic attraction closing device of the shell of some high-precision electronic instruments, the strong magnetic force coupling can ensure that the first magnetic block 101 and the second magnetic block 102 are closely attached and cannot be easily separated due to slight shaking, shaking and other factors. The setting of opposite magnetic poles attracting each other makes the magnetic field distribution of the two magnetic block combinations more stable. When the first magnetic block 101 and the second magnetic block 102 are adsorbed together to form a half-ring structure, their magnetic field lines will form a continuous and orderly distribution at the magnetic surface attachment. Compared with the opposite setting of the same magnetic poles (which will cause the magnetic fields to repel each other and the distribution to be disorderly), this N-pole and S-pole adsorption and attachment can make the magnetic field more evenly and stably distributed in the entire half-ring structure and the surrounding space. In application scenarios involving electromagnetic induction, such as parts of an electromagnetic generator or electromagnetic induction heating equipment, this N-pole and S-pole adsorption and attachment half-moon type magnet structure can bring advantages.

[0047] In actual use, when the magnetic field changes (such as the magnet cutting the magnetic induction line relative to the conductor), due to the stable and orderly magnetic field between the two magnetic blocks, a more stable and predictable induced electromotive force can be generated in the conductor. Stable magnetic field and strong magnetic force coupling help to reduce unnecessary energy loss. Because the magnetic blocks are closely adsorbed and the magnetic field is stable, during the interaction between the magnet and other related parts (such as the driven magnetic object or conductor in an electromagnetic drive device), additional energy consumption caused by magnetic field disorder or magnet separation can be avoided. The half-moon type magnet structure with this magnetic pole setting has strong application flexibility. It can be easily integrated into various applications that require specific magnetic pole configuration and magnetic field strength.

[0048] Specifically, a half-moon type magnet structure further includes a shielding cover 2, the first magnetic block 101 and the second magnetic block 102 are contained in the shielding cover 2, the magnetic surface of the first magnetic block 101 and the magnetic surface of the second magnetic block 102 are both N-level or S-level, the magnetic surface of the first magnetic block 101 and the magnetic surface of the second magnetic block 102 are attached together, the shielding cover 2 is attached around the outer periphery of the first magnetic block 101 and the second magnetic block 102, and the shielding cover 2 is provided with an opening slot exposing the first magnetic block 101 and the second magnetic block 102.

[0049] In actual use, the shielding cover 2 can effectively shield the magnetic field generated by the first magnetic block 101 and the second magnetic block 102. In some application scenarios that are sensitive to the magnetic field environment, such as in an area with a large number of electronic devices (such as a computer room or a communication base station), if the magnetic field of the magnet spreads outward uncontrollably, it may interfere with the normal operation of other electronic devices in the surrounding environment. By containing the first magnetic block 101 and the second magnetic block 102 in the shielding cover 2, the shielding cover 2 can limit the magnetic field within a specific range, reduce the magnetic field interference on the external environment, and ensure that the surrounding electronic devices can work normally. The shielding cover 2 is provided with an opening slot that exposes the first magnetic block 101 and the second magnetic block 102. By reasonably designing the size, shape, and position of the opening slot, precise control of the magnetic field of the magnet can be achieved. Only the part of the magnetic field that is needed is allowed to pass through the opening slot, thereby forming the required magnetic field distribution in a specific area. For example, in some high-precision magnetic field positioning devices, by adjusting the parameters of the opening slot, the magnetic field that passes through the opening slot can be accurately applied to the target area, thereby improving the magnetic field positioning accuracy of the device on the target object.

[0050] In actual use, the shielding cover 2 provides physical protection for the first magnetic block 101 and the second magnetic block 102. In actual applications, the magnet may be subjected to external mechanical forces such as collision and extrusion. The shielding cover 2 can act as a protective barrier to prevent these external forces from directly acting on the magnet, thereby avoiding damage or deformation of the magnet and prolonging the service life of the magnet. Since the first magnetic block 101 and the second magnetic block 102 are contained in the shielding cover 2, and the shielding cover 2 has a certain restraining effect on the magnetic field, the magnetic field of the magnet combination is more stable. Even if there are some slight interference factors in the external environment (such as temperature changes and slight vibrations), the shielding cover 2 can maintain the stable distribution of the magnetic field inside to a certain extent, thereby ensuring the stability of the magnetic field that passes through the opening slot. The magnetic properties of the magnetic surface of the first magnetic block 101 and the magnetic surface of the second magnetic block 102 are both N or S and are in contact with each other. This magnetic pole configuration has unique advantages in some applications. In some applications that require the construction of a special magnetic field distribution, such as in some magnetic levitation experimental devices, by reasonably arranging multiple half-moon type magnet structures configured in this way, the repulsive force generated by the repulsion of like magnetic poles can be used to achieve a specific levitation effect without relying on other auxiliary support structures like the attraction of unlike magnetic poles. Combined with the shielding cover 2 and the specific magnetic pole configuration, the application flexibility of this half-moon type magnet structure is further expanded, and it can adapt to more different types of application scenarios.

[0051] Specifically, the first magnetic block 101 has a first arc surface portion 1011, and the second magnetic block 102 has a second arc surface portion 1021 that cooperates with the first arc surface portion 1011, and the first arc surface portion 1011 and the second arc surface portion 1021 together form a fan-shaped arc surface portion 1031.

[0052] In actual use, the fan-shaped arc surface part 1031 is designed to enable the magnetic field to be better focused in the arc region. Compared with a magnet of ordinary shape, this structure can concentrate the magnetic field in a fan-shaped spatial range, producing a spotlight-like effect. The cooperation of the first arc surface part 1011 and the second arc surface part 1021 helps to form a relatively uniform magnetic field in the fan-shaped region. In some experimental or industrial applications that require a uniform magnetic field, such as crystal growth using a magnetic field, a uniform magnetic field can ensure that the crystal is subjected to a consistent magnetic force during growth. The fan-shaped arc surface part 1031 enables the magnet structure to fit well with the curved surface of an object. Taking the design of the track of a magnetic levitation train as an example, the fan-shaped arc surface part 1031 of such a half-moon-shaped magnet structure can be installed inside the track and closely cooperate with the magnetic components at the bottom of the train. Around some electronic equipment that is sensitive to magnetic fields, magnetic field shielding is required. The fan-shaped arc surface part 1031 of the half-moon-shaped magnet structure can be part of a magnetic field shielding device. By reasonably arranging multiple such magnets, taking advantage of their magnetic field distribution characteristics, external magnetic fields can be guided to bypass sensitive equipment, playing a role in protecting the equipment from magnetic field interference.

[0053] Specifically, the first magnetic block 101 has a third arc surface part 1012, the second magnetic block 102 has a fourth arc surface part 1022 cooperating with the third arc surface part 1012, and the third arc surface part 1012 and the fourth arc surface part 1022 together form a semicircular arc surface part 1032; the fan-shaped arc surface part 1031 is located above the semicircular arc surface part 1032, and the fan-shaped arc surface part 1031 and the semicircular arc surface part 1032 together constitute the half-moon-shaped arc surface part 103 of the half-moon-shaped magnet structure.

[0054] In actual use, the third arc surface part 1012 of the first magnetic block 101 and the fourth arc surface part 1022 of the second magnetic block 102 jointly form a semicircular arc surface part 1032, and in combination with the fan-shaped arc surface part 1031 formed by the first arc surface part 1011 of the first magnetic block 101 and the second arc surface part 1021 of the second magnetic block 102 located above the semicircular arc surface part 1032, the semilunar arc surface part 103 of the semilunar magnet structure is completely formed. The complete construction of the semilunar arc surface part 103 makes it more flexible and diverse when it is adapted to various objects or components with semilunar or arc-shaped shape requirements. Whether it is matched with a semilunar shell, a track, or a mechanical structure with a similar arc-shaped contour, the magnet structure can realize close fitting by virtue of its precise semilunar shape. Since the semilunar arc surface part 103 is jointly formed by the fan-shaped arc surface part 1031 and the semicircular arc surface part 1032, this complex arc-shaped structure will have a more fine influence on the distribution of the magnetic field inside and around the magnet. Compared with simple-shaped magnets, its magnetic field distribution will show more hierarchical and unique characteristics. Multiple semilunar magnet structures with complete semilunar arc surface parts 103 can be combined in a very flexible and diverse manner. They can be spliced according to the semilunar arc to form larger semilunar or ring-shaped magnet structures to meet the application scenarios of different scales and shape requirements, or they can be combined in different arrangement ways in the same plane to produce diversified magnetic field effects.

[0055] Specifically, the first magnetic block 101 has a first planar part 1013 connected to the fan-shaped arc surface part 1031 in transition, a second planar part 1014 connected to the semicircular arc surface part 1032 in transition, and the second magnetic block 102 has a third planar part 1023 connected to the fan-shaped arc surface part 1031 in transition, a fourth planar part 1024 connected to the semicircular arc surface part 1032 in transition; the first planar part 1013 and the second planar part 1014 extend from the fan-shaped arc surface part 1031 and the semicircular arc surface part 1032 respectively to form a first right angle structure by vertically intersecting, and the third planar part 1023 and the fourth planar part 1024 extend from the fan-shaped arc surface part 1031 and the semicircular arc surface part 1032 respectively to form a second right angle structure by vertically intersecting.

[0056] In actual use, the first flat surface 1013 and the second flat surface 1014 of the first magnetic block 101 extend from the first arc surface 1011 and the third arc surface 1012 respectively to form a first right angle structure by vertical intersection. The second magnetic block 102 forms a second right angle structure in the same way. Such a right angle structure can provide a clear and stable support point and positioning reference when the magnetic block is combined or installed in a specific device. When the magnetic block is subjected to external force, the right angle structure formed by the vertical intersection of the flat surfaces helps to evenly distribute the external force to each part. Compared with a purely arc-shaped or irregularly shaped magnetic block, this structure can better withstand pressure, tension or impact force. The transition connection of the flat surface and the arc surface and the right angle structure formed make the distribution of the magnetic field around the magnetic block have clearer boundaries. Compared with a full arc-shaped or irregularly shaped magnetic block with blurred boundaries, the magnetic field under this structure can be more accurately limited within the required area. The presence of the right angle structure facilitates the regulation of the direction of the magnetic field. By reasonably designing the installation direction and combination method of the magnetic block, the direction of the magnetic field can be more accurately guided and controlled by utilizing the vertical relationship of the flat surfaces.

[0057] Specifically, the arc surface, the flat surface and the right angle structure together form a half-moon type magnet structure.

[0058] In actual use, the half-moon type magnet structure combines the arc surface, the flat surface and the right angle structure, so that the distribution of the magnetic field can be more accurately regulated. The arc surface can guide the magnetic force lines to form a specific arc-shaped trend, the flat surface serves to define and regularize the range of the magnetic field, and the right angle structure helps to strengthen the boundary of the magnetic field in a specific direction. This structure can promote the effective concentration of the magnetic field strength in a specific area. The arc design of the arc surface can converge the magnetic force lines, the flat surface limits the diffusion direction of the magnetic field, and the right angle structure further stabilizes the concentrated area of the magnetic field. The flat surface and the right angle structure provide a stable support system for the half-moon type magnet. The flat surface can be flatly attached to the external mounting surface or other components to provide a stable point of force, and the right angle structure increases the rigidity of the structure, making it less likely to deform when subjected to external force. When the half-moon type magnet is subjected to external force impact, the arc surface, the flat surface and the right angle structure can work together to effectively disperse stress. The arc design of the arc surface can provide a certain degree of cushioning for external force on its surface, the flat surface transmits stress to a wider area, and the right angle structure enhances the structure's resistance to stress in the vertical direction.

[0059] Specifically, the half-moon type magnet structure further has a half-moon type iron sheet 3 covering one side of the first magnetic block 101 and the second magnetic block 102, the half-moon type iron sheet 3 is used to guide and enhance the magnetic field of the magnetic block on the side, the length of the half-moon type iron sheet 3 is the same as the sum of the lengths of the first magnetic block 101 and the second magnetic block 102, the height and thickness of the half-moon type iron sheet 3 are both smaller than the height and thickness of the first magnetic block 101 or the second magnetic block 102, and the half-moon type iron sheet 3 is provided with a positioning hole 31 for mounting and positioning with other structural members.

[0060] In actual use, the half-moon type iron sheet 3 covers one side of the magnetic block and can guide the magnetic field of the magnetic block on the side. Because the half-moon type iron sheet has good magnetic conductivity, the magnetic field lines tend to distribute along the iron sheet, so that the originally dispersed magnetic field becomes more concentrated after being guided by the iron sheet, achieving the effect of focusing the magnetic field. The half-moon type iron sheet 3 can enhance the magnetic field strength of the magnetic block on the covered side. The iron sheet is magnetized in the magnetic field, and the magnetic field generated by itself is superimposed on the magnetic field of the original magnetic block, thereby increasing the magnetic field strength on the side as a whole. The length of the half-moon type iron sheet 3 is the same as the sum of the lengths of the first magnetic block 101 and the second magnetic block 102, and the height and thickness are both smaller than the height and thickness of the first magnetic block 101 or the second magnetic block 102, which makes it play an optimizing role in the magnetic field of the magnet without occupying too much space. Because the half-moon type iron sheet 3 is relatively thin and has a small height, it has better compatibility when cooperating with surrounding components.

[0061] In actual use, the existence of the positioning hole 31 enables the half-moon type iron sheet 3 to be accurately positioned when mounted with other structural members. When assembling a device containing the half-moon type magnet structure and related components, by accurately matching the positioning hole 31 with the corresponding positioning protrusions or connecting members such as bolts on other structural members, the position of the half-moon type iron sheet 3 in the device can be ensured to be accurate. Using the positioning hole 31 for installation can greatly simplify the installation process. The installer does not need to spend a lot of time and effort to determine the position of the half-moon type iron sheet 3 through complex measurement and adjustment, but only needs to accurately butt joint the positioning hole 31 with the corresponding mounting structure to complete the installation. When the half-moon type iron sheet 3 is connected with other structural members through the positioning hole 31, this connection makes the combination of components more firm. For example, in some magnetic transmission devices, the half-moon type iron sheet 3 is connected with the transmission structure through the positioning hole 31 and a bolt, which can effectively resist the loosening or displacement of components caused by external factors such as vibration and impact during the operation of the device.

[0062] Specifically, the surfaces of the first magnetic block 101 and the second magnetic block 102 are both coated with an epoxy resin layer 4 using an electroplating process for protection.

[0063] In actual use, the epoxy resin layer 4 can effectively isolate the contact between the water vapor, oxygen and various corrosive media in the external environment and the surface of the magnetic block. The neodymium iron boron magnetic block is prone to corrosion in some humid or corrosive gas environments, thereby affecting its magnetic properties and service life. During the use of the magnetic block, friction or collision with other objects may occur, causing surface wear. The epoxy resin layer 4 has a certain wear resistance and can withstand a certain degree of friction without being easily damaged. Since the epoxy resin layer 4 protects the magnetic block and reduces external factors that interfere with the magnetic block, it helps to maintain the stability of the magnetic properties of the magnetic block. The presence of the epoxy resin layer 4 increases the overall reliability of the magnetic block. By preventing the magnetic block from being corroded, worn, and other damage, the probability of the magnetic block malfunctioning is reduced.

[0064] In this embodiment, the first magnetic block 101 and the second magnetic block 102 have the same structure, and both are made of neodymium iron boron. Neodymium iron boron is a permanent magnet material with extremely high magnetic energy product. This means that under the same volume, a magnetic block made of neodymium iron boron can store and release more magnetic energy than many other conventional permanent magnet materials. The neodymium iron boron magnetic block can generate a very strong magnetic field. Combined with its synergy with a specific structure (such as the half-moon type magnet structure mentioned earlier), it can further strengthen the distribution and strength of the magnetic field in a specific area. Since the first magnetic block 101 and the second magnetic block 102 have the same structure and are made of neodymium iron boron, this ensures that the two magnetic blocks have high consistency in magnetic field characteristics. They can generate uniform and matched magnetic fields, avoiding problems such as uneven and uncoordinated magnetic fields caused by material differences or structural differences. Neodymium iron boron material itself has good long-term stability, and its magnetic properties can remain relatively stable under normal use conditions. When two magnetic blocks of the same structure and made of neodymium iron boron are used together, this stability is further strengthened. Because the two magnetic blocks have the same structure and are made of the same material (neodymium iron boron), a unified manufacturing process can be used during manufacturing. This simplifies the production process, reduces production costs, and improves production efficiency.

[0065] The above merely describes a preferred embodiment of the present application, and for those skilled in the art, based on the idea of the present application, the specific implementation and application range can be changed, and the content of the specification should not be understood as limiting the present application.

Claims

1. A half-moon type magnet structure, characterized by: The magnetic block piece (10) is arc-shaped, and the end faces of the two ends of the magnetic block piece (10) away from each other are located on a first arc surface (11) and a second arc surface (12) respectively, the arc of the first arc surface (11) is the same as the arc of the second arc surface (12), the first arc surface (11) and the second arc surface (12) are formed as a concentric ring structure, the first arc surface (11) is used to fit the outer side of a cylinder in the external environment, and the second arc surface (12) is used to fit the arc-shaped outer wall in the external environment.

2. A semi-moon type magnet structure according to claim 1, characterized in that: The number of magnetic block pieces (10) is two, and the two magnetic block pieces (10) are a first magnetic block (101) and a second magnetic block (102), the structure of the first magnetic block (101) is the same as that of the second magnetic block (102), the first magnetic block (101) and the second magnetic block (102) are provided with magnetic surfaces that abut each other, and the first magnetic block (101) and the second magnetic block (102) combine to form a half-ring structure.

3. A semi-moon type magnet structure according to claim 2, characterized in that: The magnetism of the magnetic surface of the first magnetic block (101) and the magnetism of the magnetic surface of the second magnetic block (102) are N and S poles respectively, and the magnetic surface of the first magnetic block (101) and the magnetic surface of the second magnetic block (102) are attached together.

4. A semi-moon type magnet structure according to claim 2, characterized in that: A half-moon type magnet structure also includes a shielding cover (2), the first magnetic block (101) and the second magnetic block (102) are accommodated in the shielding cover (2), the magnetism of the magnetic surface of the first magnetic block (101) and the magnetism of the magnetic surface of the second magnetic block (102) are N or S, the magnetic surface of the first magnetic block (101) and the magnetic surface of the second magnetic block (102) are in contact and attached together, the shielding cover (2) is attached around the outer periphery of the first magnetic block (101) and the second magnetic block (102), and the shielding cover (2) is provided with an opening slot (21) exposing the first magnetic block (101) and the second magnetic block (102).

5. A semi-moon type magnet structure according to claim 2, characterized in that: The first magnetic block (101) has a first arc surface portion (1011), the second magnetic block (102) has a second arc surface portion (1021) matched with the first arc surface portion (1011), and the first arc surface portion (1011) and the second arc surface portion (1021) jointly form a fan-shaped arc surface portion (1031).

6. A semi-moon type magnet structure according to claim 5, characterized in that: The first magnetic block (101) has a third arc surface portion (1012), the second magnetic block (102) has a fourth arc surface portion (1022) matched with the third arc surface portion (1012), the third arc surface portion (1012) and the fourth arc surface portion (1022) jointly form a semicircular arc surface portion (1032), the fan-shaped arc surface portion (1031) is located above the semicircular arc surface portion (1032), and the fan-shaped arc surface portion (1031) and the semicircular arc surface portion (1032) jointly constitute a half-moon arc surface portion (103) of the half-moon type magnet structure.

7. A semi-moon type magnet structure according to claim 6, characterized in that: The first magnetic block (101) has a first flat portion (1013) that transitions to the fan-shaped arc surface (1031) and a second flat portion (1014) that transitions to the semi-circular arc surface (1032). The second magnetic block (102) has a third flat portion (1023) that transitions to the fan-shaped arc surface (1031) and a fourth flat portion (1024) that transitions to the semi-circular arc surface (1032). The first flat portion (1013) and the second flat portion (1014) extend from the fan-shaped arc surface (1031) and the semi-circular arc surface (1032) respectively to intersect perpendicularly to form a first right-angle structure. The third flat portion (1023) and the fourth flat portion (1024) extend from the fan-shaped arc surface (1031) and the semi-circular arc surface (1032) respectively to intersect perpendicularly to form a second right-angle structure.

8. A semi-moon type magnet structure according to claim 7, characterized in that: The curved part, the flat part, and the right-angled structure together form a crescent-shaped magnet structure.

9. A semi-moon type magnet structure according to claim 2, characterized in that: The crescent-shaped magnet structure also has a crescent-shaped iron plate (3) covering one side of the first magnetic block (101) and the second magnetic block (102). The crescent-shaped iron plate (3) is used to guide and enhance the magnetic field of the magnetic block on that side. The length of the crescent-shaped iron plate (3) is the same as the sum of the lengths of the first magnetic block (101) and the second magnetic block (102). The height and thickness of the crescent-shaped iron plate (3) are both less than the height and thickness of the first magnetic block (101) or the second magnetic block (102). The crescent-shaped iron plate (3) is provided with positioning holes (31) for installation and positioning with other structural components.

10. A semi-moon type magnet structure according to claim 2, characterized in that: The surfaces of the first magnetic block (101) and the second magnetic block (102) are both electroplated with an epoxy resin layer (4) to protect the magnetic blocks.

Images