Magnetic tuning ring

Abstract

The present invention discloses a magnetic tuning ring, which comprises a non-magnetic ring body and a plurality of magnetic conduction blocks. The ring body has a first end ring, a second end ring and a plurality of partition strips. The first end of the partition strip is connected to and integrally formed with the first end ring, and the second end of the partition strip is detachably connected to the second end ring. The plurality of partition strips are arranged at intervals in the circumferential direction, and an installation groove is formed between adjacent partition strips. In the radial cross-section of the ring body, the installation groove has a first end portion, a second end portion and an intermediate section located between the first end portion and the second end portion in the radial direction. At least a part of the intermediate section has a dimension in the circumferential direction larger than the dimensions of the first end portion and the second end portion in the circumferential direction. The cross-sectional profile of the magnetic conduction block is adapted to the profile of the installation groove in the radial cross-section of the ring body, and the magnetic conduction block is installed in the installation groove. The magnetic tuning ring of the present invention has sufficient load-bearing capacity, stiffness and strength, is not easily deformed, and is conducive to being used as a power transmission structure.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic gears, and more specifically, to a magnetic modulation ring. Background Art

[0002] Permanent magnet variable speed machines are an ideal choice in the field of transmission. Their driving wheels and driven wheels have no physical contact, and they use the interaction force between the magnetic fields of permanent magnets for transmission, which can achieve the transmission of high-performance, high-reliability power and motion. A permanent magnet variable speed machine includes three main components: an inner magnetic ring, an outer magnetic ring, and a magnetic modulation ring. Fix one of the components, and use the remaining two components as rotors to achieve the speed and power ratio function. Summary of the Invention

[0003] This application is made based on the inventor's discovery and research of the following technical problems and facts:

[0004] Document CN101841280B discloses a concentric magnetic force gear applying a squirrel-cage magnetic modulation device. The concentric magnetic force gear includes an internal permanent magnet structure, a middle magnetic modulation structure, and an external permanent magnet structure. The middle magnetic modulation structure is located between the internal permanent magnet structure and the external permanent magnet structure. The middle magnetic modulation structure uses a non-magnetic conductive material to make a support structure, and R magnetic modulation iron blocks made of soft magnetic materials are fixed on the support structure to form a squirrel-cage structure.

[0005] The concentric magnetic force gear disclosed in the above document has the following problems: The middle magnetic modulation structure is used as a stator, and has low requirements for load-carrying capacity, strength, and stiffness, and only needs to meet the magnetic modulation performance. When the middle magnetic modulation structure is used as a rotor, the middle magnetic modulation structure is prone to deformation during operation.

[0006] However, when the middle magnetic modulation structure is used as a rotor, it needs to transmit torque and has high requirements for load-carrying capacity, strength, and stiffness. Due to problems in design and processing technology in the prior art, the magnetic modulation structure cannot guarantee load-carrying capacity, strength, and height, and is prone to deformation during operation, making it difficult to realize the operation mode of the magnetic modulation structure as a power transmission structure.

[0007] Therefore, the present invention aims to solve at least one of the technical problems in the related art to some extent. The present invention provides a magnetic modulation ring, which has sufficient load-carrying capacity, strength, and stiffness, is not prone to deformation, and is conducive to using it as a power transmission structure.

[0008] The magnetic flux regulating ring according to an embodiment of the present invention includes: a non-magnetic ring body having a first end ring, a second end ring, and a plurality of partition strips. The partition strips have a first end and a second end. The first end of the partition strip is connected to the first end ring and integrally formed with the first end ring. The second end of the partition strip is detachably connected to the second end ring. The plurality of partition strips are arranged at intervals along the circumferential direction of the ring body, and an installation groove is formed between adjacent partition strips. In the radial cross-section of the ring body, the installation groove has a first end portion, a second end portion, and an intermediate section located between the first end portion and the second end portion in the radial direction of the ring body, wherein at least a part of the intermediate section has a size in the circumferential direction of the ring body larger than the size of the first end portion in the circumferential direction of the ring body and the size of the second end portion in the circumferential direction of the ring body; a plurality of magnetic conduction blocks, the cross-sectional profile of the magnetic conduction blocks being adapted to the profile of the installation groove in the radial cross-section of the ring body, and the magnetic conduction blocks being installed in the installation groove.

[0009] The magnetic flux regulating ring according to an embodiment of the present invention includes a non-magnetic ring body and a plurality of magnetic conduction blocks embedded in the ring body, which is applied to a magnetic gear for magnetic flux regulation. By designing the installation groove on the ring body to have a structure with a larger size in the circumferential direction and smaller sizes at both ends in the radial cross-section of the ring body, that is, the cross-section of the ring body, and making the shape and size of the magnetic conduction blocks match the shape and size of the installation groove; since the second end ring is detachably connected to the second end of the partition strip, during the installation process of the magnetic conduction blocks and the ring body, the second end ring can be removed from the partition strip, and the magnetic conduction blocks are inserted into the installation groove along the axial direction of the ring body from the second end of the ring body. After the magnetic conduction blocks are installed, the second end ring is connected to the partition strip again, thereby realizing the assembly of the magnetic conduction blocks and the ring body, and the magnetic conduction blocks can be more reliably fastened in the installation groove between adjacent partition strips, so that the magnetic flux regulating ring has sufficient bearing capacity, strength, and stiffness, is not easily deformed, is conducive to using it as a power transmission structure, and can meet the transmission requirements of high torque.

[0010] In some embodiments, in the radial cross-section of the ring body, the size of the installation groove in the circumferential direction of the ring body gradually decreases from the central position of the installation groove towards the first end portion and the second end portion.

[0011] In some embodiments, in the radial cross-section of the ring body, both side walls of the installation groove are arc-shaped.

[0012] In some embodiments, in the radial cross-section of the ring body, the installation groove is generally cross-shaped.

[0013] In some embodiments, the magnetic conduction blocks are formed by stacking a plurality of soft magnetic material sheets, and adjacent soft magnetic material sheets are bonded and isolated from each other by a non-conductive adhesive layer.

[0014] In some embodiments, the soft magnetic material sheet is an iron sheet, a low-carbon steel sheet, an iron-silicon alloy sheet, an iron-aluminum alloy sheet, an iron-silicon-aluminum alloy sheet, a nickel-iron alloy sheet, an iron-cobalt alloy sheet, a soft magnetic ferrite sheet, an amorphous soft magnetic alloy sheet or a nanocrystalline soft magnetic alloy sheet.

[0015] In some embodiments, the soft magnetic material sheet is an amorphous soft magnetic alloy sheet.

[0016] In some embodiments, the ring body is a non-magnetic metal ring body, a non-magnetic alloy ring body, a glass fiber reinforced plastic ring body, a glass fiber ring body, a ceramic ring body, a carbon fiber ring body or a resin material ring body.

[0017] In some embodiments, the ring body is a titanium alloy ring body.

[0018] In some embodiments, a plurality of the mounting grooves are uniformly arranged at intervals along the circumferential direction of the ring body. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the magnetic tuning ring according to an embodiment of the present invention.

[0020] Figure 2 is a schematic structural diagram of the first end ring and the partition strip of the magnetic tuning ring according to an embodiment of the present invention.

[0021] Figure 3 is a partial radial cross-sectional schematic diagram of the mounting groove of the magnetic tuning ring according to an embodiment of the present invention.

[0022] Figure 4 is a schematic structural diagram of the magnetic conduction block of the magnetic tuning ring according to an embodiment of the present invention.

[0023] Figure 5 is a cross-sectional schematic diagram of the magnetic conduction block of the magnetic tuning ring according to an embodiment of the present invention.

[0024] Figure 6 is a longitudinal cross-sectional schematic diagram of the magnetic conduction block of the magnetic tuning ring according to an embodiment of the present invention.

[0025] Figure 7 is a schematic structural diagram of the second end ring of the magnetic tuning ring according to an embodiment of the present invention.

[0026] Reference Signs:

[0027] Ring body 1, first end ring 11, second end ring 12, partition strip 13, mounting groove 14, first end portion 141, second end portion 142, intermediate section 143, magnetic conduction block 2. Detailed Description of the Embodiments

[0028] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0029] The magnetic tuning ring according to an embodiment of the present invention will be described below.

[0030] As Figures 1-7 shown, the magnetic tuning ring according to an embodiment of the present invention includes a non-magnetic ring body 1 and a plurality of magnetic conduction blocks 2. The ring body 1 has a first end ring 11, a second end ring 12 and a plurality of partition strips 13. The partition strip 13 has a first end ( Figure 1 , 2 the right end of the partition strip 13 shown), and a second end ( Figure 1 , 2 the left end of the partition strip 13 shown). The first end ( Figure 1 , 2 the right end of the partition strip 13 shown) of the partition strip 13 is connected to the first end ring 11, and the partition strip 13 and the first end ring 11 are integrally formed. The second end ( Figure 1 , 2 the left end of the partition strip 13 shown) of the partition strip 13 is detachably connected to the second end ring 12. In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0031] In other words, as Figure 1 , 2 shown, the first end ring 11 and the second end ring 12 are spaced apart from each other and opposite to each other in the left-right direction. The partition strip 13 is provided between the first end ring 11 and the second end ring 12, and the right end of the partition strip 13 is connected to the left end face of the first end ring 11, and the left end of the partition strip 13 is connected to the right end face of the second end ring 12, wherein the partition strip 13 and the first end ring 11 are of an integral structure and are detachably connected to the second end ring 11, as Figure 1 , 7As shown, that is, the second end ring 11 can be installed on the spacer 13 or removed from the spacer 13.

[0032] A plurality of spacers 13 are arranged at intervals in the circumferential direction of the ring body 11, and an installation groove 14 is formed between adjacent spacers 13. In other words, a plurality of spacers 13 are arranged at intervals in the circumferential direction of the first end ring 11 or the second end ring 12, and an installation groove 14 is formed between every two adjacent spacers. Then, there are a plurality of installation grooves 14, and the plurality of installation grooves 14 are arranged at intervals in the circumferential direction of the first end ring 11 or the second end ring 12, and adjacent installation grooves 14 are separated by spacers 13. Specifically, the plurality of spacers 13 are arranged at uniform intervals in the circumferential direction of the ring body 1. In other words, the distance between adjacent spacers 13 is the same, that is, the sizes of the plurality of installation grooves 14 in the circumferential direction of the ring body 1 are the same. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] As Figures 2-3 shown, in the radial cross-section (cross-section of the ring body 1) of the ring body 1, the installation groove 14 has a first end portion 141, a second end portion 142 and an intermediate section 143 located between the first end portion 141 and the second end portion 142 in the radial direction of the ring body 1, wherein at least a part of the intermediate section 143 of the installation groove 14 has a size in the circumferential direction of the ring body 1 that is larger than the size of the first end portion 141 in the circumferential direction of the ring body 1 and the size of the second end portion 142 in the circumferential direction of the ring body 1. In other words, in the cross-section of the ring body 1, the size of the installation groove 14 in the circumferential direction of the ring body 1 is larger in the middle and smaller at both ends, and the middle does not limit to the central position of the installation groove 14.

[0034] Here, it should be understood that both the first end portion 141 and the second end portion 142 are understood in a broad sense. The first end portion 141 is not limited to the first end face of the installation groove 14 in the radial direction of the ring body 1, and can also extend a distance from the first end face of the installation groove 14 in the radial direction of the ring body 1 towards the second end portion; the second end portion 142 is not limited to the second end face of the installation groove 14 in the radial direction of the ring body 1, and can also extend a distance from the second end face of the installation groove 14 in the radial direction of the ring body 1 towards the first end portion.

[0035] Moreover, the intermediate section 143 should be understood as the area between the first end portion 141 and the second end portion 142, and the "middle" does not limit to the central position of the installation groove 14. Thus, the intermediate section 143 is not limited to including the middle position of the installation groove 14, nor is it limited to the length of the intermediate section 143 in the radial direction being symmetrical with respect to the central position of the installation groove 14.

[0036] The cross-sectional profile of the magnetic conduction block 2 is adapted to the profile of the installation groove 14 in the radial cross-section of the ring body 1, and the magnetic conduction block 2 is installed in the installation groove 14. In other words, the shape and size of the magnetic conduction block 2 are the same as those of the installation groove 14. AsFigure 4 , 5 As shown in 5 , the magnetic conduction block 2 has two end portions and an intermediate section located between the two end portions in the radial direction of the ring body 1. At least a part of the intermediate section has a dimension in the circumferential direction of the ring body 1 that is larger than the dimensions of the two end portions in the circumferential direction of the ring body 1. That is, the dimension of the magnetic conduction block 2 in the radial direction of the ring body 1 is larger in the middle and smaller at both ends, so as to adapt to the shape and dimension of the installation groove 14, thereby preventing the magnetic conduction block 2 from falling off from the installation groove 14. Here, it should be understood that a plurality of magnetic conduction blocks 2 are installed in a one-to-one correspondence in a plurality of installation grooves 14, that is, one magnetic conduction block 2 is installed in each installation groove 14.

[0037] It can be understood that the magnetic field modulation ring according to the embodiment of the present invention is applied to a magnetic gear, that is, it is arranged between the outer magnetic ring and the inner magnetic ring of the magnetic gear, and can cut the magnetic force lines between the outer magnetic ring and the inner magnetic ring to play a role in magnetic field modulation, thereby realizing the speed and power ratio function.

[0038] The magnetic field modulation ring according to the embodiment of the present invention includes a non-magnetic ring body 1 and a plurality of magnetic conduction blocks 2 embedded in the ring body 1, which is used for magnetic field modulation in a magnetic gear. By designing the installation groove 14 on the ring body 1 to have a structure with a larger dimension in the circumferential direction and smaller dimensions at both ends in the radial cross-section of the ring body 1, that is, the cross-section of the ring body 1, and adapting the shape and dimension of the magnetic conduction block 2 to the shape and dimension of the installation groove 14; since the second end ring 12 is detachably connected to the second end of the partition strip 13, during the installation process of the magnetic conduction block 2 and the ring body 1, the second end ring 12 can be removed from the partition strip 13, and the magnetic conduction block 2 is inserted into the installation groove 14 along the axial direction of the ring body 1 from the second end of the ring body 1. After the magnetic conduction block 2 is installed, the second end ring 12 is connected to the partition strip 13, thereby realizing the assembly of the magnetic conduction block 2 and the ring body 1, and the magnetic conduction block 2 can be more reliably fastened in the installation groove 14 between adjacent partition strips 13. Thus, the manufacturing and assembly are relatively simple, and the magnetic field modulation ring has sufficient bearing capacity, strength and stiffness, is not easily deformed, is conducive to using it as a power transmission structure, and can meet the transmission requirements of high torque.

[0039] In some alternative embodiments, as Figure 3 shown, in the radial cross-section of the ring body 1, the dimension of the installation groove 14 in the circumferential direction of the ring body 1 gradually decreases from the central position of the installation groove 14 towards the first end portion 141 ( Figure 3 the upper end portion shown in Figure 3 ) and the second end portion 142 ( Figure 3 the lower end portion shown in Figure 3 ). In other words, in the cross-section of the ring body 1, the dimension of the installation groove 14 in the axial direction of the ring body 1 is the largest at the central position of the installation groove 14, and gradually decreases upwards and downwards respectively.

[0040] Further, on the radial cross-section of the ring body 1, both side walls of the mounting groove 14 are arc-shaped. In other words, the mounting groove 14 transitions arc-shaped upward and downward respectively from the central position of the mounting groove 14, and the two side walls of the mounting groove 14 bulge outward, that is, the opposite side surfaces of two adjacent partition bars 13 are concave.

[0041] It can be understood that, to adapt to the contour of the radial cross-section of the mounting groove 14 in this embodiment, on the cross-section of the magnetic conduction block 2, as Figure 5 shown, the length of the magnetic conduction block 2 in the left-right direction gradually decreases upward and downward from the central position of the magnetic conduction block 2, and both the left side surface and the right side surface of the magnetic conduction block 2 are arc-shaped.

[0042] In some other alternative embodiments, on the radial cross-section of the ring body 1, the mounting groove 14 is generally cross-shaped. It can be understood that the shape of the mounting groove 14 on the radial cross-section of the ring body 1 is not limited to this, as long as it satisfies that at least a part of the middle section 143 is larger than the first end portion 141 and the second end portion 142 in the circumferential dimension of the ring body 1.

[0043] In some embodiments, as Figure 6 shown, the magnetic conduction block 2 is formed by stacking a plurality of soft magnetic material sheets 21, and adjacent soft magnetic material sheets 21 are bonded and isolated from each other by a non-conductive binder layer 22. In other words, the magnetic conduction block 2 includes a plurality of soft magnetic material sheets 21 and a plurality of non-conductive binder layers 22, and the soft magnetic material sheets 21 and the non-conductive binder layers 22 are arranged alternately one by one and stacked on top of each other. That is, during the manufacturing process of the magnetic conduction block 2, the soft magnetic material sheets 21 and the non-conductive binder layers 22 are stacked together according to the arrangement pattern of soft magnetic material sheet 21, non-conductive binder layer 22, soft magnetic material sheet 21, non-conductive binder layer 22... to form the magnetic conduction block 2.

[0044] According to the magnetic modulation ring of the embodiment of the present invention, by using a soft magnetic material and a non-conductive binder to make the magnetic conduction block 2, the magnetic conduction performance of the magnetic conduction block 2 can be improved, so that a high-performance magnetic conduction material can be used to replace the existing iron core material, which can reduce losses and improve the transmission efficiency. Thus, setting the magnetic modulation ring into an inlaid structure with magnetic conduction blocks made of high-performance magnetic conduction materials can reduce the eddy current loss of the magnetic modulation ring, lower the temperature inside the variable speed gearbox, and improve the efficiency of the permanent magnet variable speed machine. Moreover, while bonding two adjacent soft magnetic material sheets 21 together through the non-conductive binder layer 22, the two adjacent soft magnetic material sheets 21 can be isolated from each other, so that the magnetic field is formed within each soft magnetic material sheet 21, reducing iron losses such as eddy current loss and hysteresis loss, reducing heat generation, and improving the magnetic modulation performance.

[0045] Further, the soft magnetic material sheet 21 is an iron sheet, a low-carbon steel sheet, an iron-silicon alloy sheet, an iron-aluminum alloy sheet, an iron-silicon-aluminum alloy sheet, a nickel-iron alloy sheet, an iron-cobalt alloy sheet, a soft ferrite sheet, an amorphous soft magnetic alloy sheet, or a nanocrystalline soft magnetic alloy sheet. In other words, the soft magnetic material can be iron, low-carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, soft ferrite, amorphous soft magnetic alloy, or nanocrystalline soft magnetic alloy, etc. It is understood that the present invention is not limited thereto.

[0046] In some specific embodiments, the soft magnetic material sheet 21 is an amorphous soft magnetic alloy sheet. In other words, in this embodiment, the soft magnetic material is an amorphous soft magnetic alloy. It is understood that the present invention is not limited thereto.

[0047] Further, the thickness of the amorphous soft magnetic alloy sheet is 0.025 mm. In other words, the length of each amorphous soft magnetic alloy sheet in the longitudinal direction of the magnetic conduction block 2, i.e., the axial direction of the ring body 1, is 0.025 mm.

[0048] In some embodiments, the ring body 1 is a non-magnetic metal ring body, a non-magnetic alloy ring body, a glass fiber reinforced plastic ring body, a glass fiber ring body, a ceramic ring body, a carbon fiber ring body, or a resin material ring body. In other words, the material of the ring body 1 can be non-magnetic metal, non-magnetic alloy, glass fiber reinforced plastic, glass fiber, ceramic, carbon fiber, or resin material, etc. The present invention is not limited thereto. For example, the material of the ring body 1 can also be a non-magnetic and non-conductive material, such as plastic, polymer material, or composite material.

[0049] It is understood that by integrally forming the spacer 13 and the first end ring 11 with the above-mentioned high-strength non-magnetic material, the overall stiffness and strength of the magnetic tuning ring can be further ensured, so that the magnetic tuning ring can be used for the load bearing and power transmission of the permanent magnet variable speed machine. Under the same power parameters of the variable speed machine, using the magnetic tuning ring as the power transmission port can obtain the maximum transmission ratio and thrust.

[0050] In some specific embodiments, the ring body 1 is a titanium alloy ring body. In other words, the ring body 1 is made of titanium alloy. It is understood that the present invention is not limited thereto.

[0051] Next, refer to the Figures 1-7 magnetic tuning ring according to specific embodiments of the present invention.

[0052] As Figures 1-7 shown, the magnetic tuning ring according to an embodiment of the present invention includes a non-magnetic ring body 1 and a plurality of magnetic conduction blocks 2. The ring body 1 is made of titanium alloy. The magnetic conduction block 2 is formed by stacking a plurality of soft magnetic material sheets 21. Adjacent soft magnetic material sheets 21 are bonded and isolated from each other by a non-conductive adhesive layer 22, and the soft magnetic material sheet 21 is an amorphous soft magnetic alloy sheet.

[0053] The annular body 1 has a first end ring 11, a second end ring 12 and a plurality of partition strips 13. The first end ring 11 and the second end ring 12 are spaced apart from each other and opposite to each other in the left-right direction. The partition strips 13 are provided between the first end ring 11 and the second end ring 12. The right end of the partition strip 13 is connected to the left end face of the first end ring 11, and the left end of the partition strip 13 is connected to the right end face of the second end ring 12. Among them, the partition strip 13 and the first end ring 11 are of an integral structure and are detachably connected to the second end ring 11.

[0054] The plurality of partition strips 13 are evenly spaced along the circumferential direction of the annular body 11, and installation grooves 14 are formed between adjacent partition strips 13.

[0055] In the radial cross-section (cross-section of the annular body 1) of the annular body 1, the installation groove 14 has a first end portion 141 and a second end portion 142 in the radial direction of the annular body 1 and an intermediate section 143 located between the first end portion 141 and the second end portion 142. The center position of the installation groove 14 is on the intermediate section 143, and the dimension of the installation groove 14 in the circumferential direction of the annular body 1 gradually decreases from the center position of the installation groove 14 towards the first end portion 141 and the second end portion 142. Both side walls of the installation groove 14 are arc-shaped.

[0056] The shape and size of the magnetic conduction block 2 are consistent with the shape and size of the installation groove 14. As Figure 4 、 5 shown, the magnetic conduction block 2 has two end portions in the radial direction of the annular body 1. Among them, in the cross-section of the annular body 1, the dimension of the magnetic conduction block 2 in the circumferential direction of the annular body 1 gradually decreases from the intermediate position of the magnetic conduction block 2 towards the two end portions of the magnetic conduction block 2, that is, the dimension of the magnetic conduction block 2 in the radial direction of the annular body 1 is larger in the middle and larger at both ends to adapt to the shape and size of the installation groove 14. The plurality of magnetic conduction blocks 2 are respectively installed in the plurality of installation grooves 14, that is, one magnetic conduction block 2 is installed in each installation groove 14.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A magnetic tuning ring, characterized in that, it includes: a non-magnetic ring body, the ring body having a first end ring, a second end ring and a plurality of partition strips, the partition strips having a first end and a second end, the first end of the partition strip being connected to the first end ring and integrally formed with the first end ring, the second end of the partition strip being detachably connected to the second end ring, the plurality of partition strips being arranged at intervals along the circumferential direction of the ring body, an installation groove being formed between adjacent partition strips, in the radial cross-section of the ring body, the installation groove having a first end portion, a second end portion and an intermediate section located between the first end portion and the second end portion in the radial direction of the ring body, wherein at least a part of the intermediate section has a size in the circumferential direction of the ring body larger than the size of the first end portion in the circumferential direction of the ring body and the size of the second end portion in the circumferential direction of the ring body; in the radial cross-section of the ring body, the size of the installation groove in the circumferential direction of the ring body gradually decreases from the central position of the installation groove towards the first end portion and the second end portion, in the radial cross-section of the ring body, both side walls of the installation groove are arc-shaped, and the installation groove is generally cross-shaped; a plurality of magnetic conduction blocks, the cross-sectional profile of the magnetic conduction blocks being adapted to the profile of the installation groove in the radial cross-section of the ring body, the magnetic conduction blocks being installed in the installation groove; during the installation of the magnetic conduction blocks and the ring body, the second end ring is removed from the partition strip, and the magnetic conduction blocks are inserted into the installation groove along the axial direction of the ring body from the second end of the ring body, and after the magnetic conduction blocks are installed, the second end ring is connected to the partition strip again.

2. The magnetic tuning ring according to claim 1, characterized in that, the magnetic conduction blocks are stacked by a plurality of soft magnetic material sheets, and adjacent soft magnetic material sheets are bonded and isolated from each other by a non-conductive binder layer.

3. The magnetic tuning ring according to claim 2, characterized in that, the soft magnetic material sheets are iron sheets, low-carbon steel sheets, iron-silicon alloy sheets, iron-aluminum alloy sheets, iron-silicon-aluminum alloy sheets, nickel-iron alloy sheets, iron-cobalt alloy sheets, soft ferrite sheets, amorphous soft magnetic alloy sheets or super-microcrystalline soft magnetic alloy sheets.

4. The magnetic tuning ring according to claim 3, characterized in that, the soft magnetic material sheets are amorphous soft magnetic alloy sheets.

5. The magnetic tuning ring according to claim 1, characterized in that, the ring body is a non-magnetic metal ring body, a glass fiber reinforced plastic ring body, a glass fiber ring body, a ceramic ring body, a carbon fiber ring body or a resin material ring body.

6. The magnetic tuning ring according to claim 1, characterized in that, the ring body is a titanium alloy ring body.

7. The magnetic tuning ring according to any one of claims 1-6, characterized in that, the plurality of installation grooves are evenly arranged at intervals along the circumferential direction of the ring body.

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