Design method, apparatus, and use of a nonlinear term-cancelled movable magnet oscillator

Abstract

A method for designing a nonlinear term-canceling movable magnet oscillator is provided. The following conditions are met: (1) The movable magnet oscillator body includes an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly. (2) The movable element assembly is simultaneously subjected to electromagnetic forces due to a pair of compressive and tensile forces, exhibiting a push-pull structural characteristic. As a result, the linear terms of the forces acting on the movable element assembly are superimposed and increase, while the nonlinear terms of the forces acting on the movable element assembly are partially or completely canceled and reduced, resulting in the nonlinear term-canceling movable magnet oscillator.

Description

[Technical Field]

[0001] The present invention relates to the field of oscillators, and more specifically to a design method, apparatus, and use of a nonlinear term-canceling movable magnet oscillator. [Background technology]

[0002] The design of the transducer and / or haptic feedback actuators, as well as the design of the movable magnets in bone conduction headphones, offers many advantages. For example, the coil section has excellent heat dissipation, and the movable component assembly itself, which is the load, does not overheat. The coil has a hollow shaft design with the magnet inside, resulting in a more compact overall design. Also, since the coil is stationary, there is no disadvantage in that the coil connection wires are less likely to be damaged. Furthermore, the design of the movable magnets allows for higher peak force values ​​and a higher ratio of peak force value to moving mass, thus enabling greater acceleration G values.

[0003] In existing movable magnet oscillator designs, relatively high nonlinear terms often arise due to specific flaws in the design of the magnet-coil combination. Specifically, the force or acceleration values ​​acting on the movable element assembly exhibit large distortions, or total harmonic distortion (THD), in the low-frequency or high-frequency range. Figure 22 shows a test graph of the total harmonic distortion (THD) of an oscillator with a conventional movable magnet design. The distortion reaches 99% around 25Hz and 46% around 100Hz. Such high distortions indicate that, near low frequencies, the distortion of the audio signal or haptic feedback signal causes a significant discrepancy between the perceived sound quality and the actual perception of haptic feedback. Generally, distortions exceeding 10% are not acceptable according to audio standards. [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] One of the objectives of the present invention is to provide a method for designing a nonlinear term-canceling movable magnet oscillator.

[0005] Another object of the present invention is to provide a nonlinear term-canceling movable magnet oscillator designed by the method described above.

[0006] A further object of the present invention is to provide the use of a nonlinear term-canceling movable magnet oscillator designed by the method described above. [Means for solving the problem]

[0007] The technical proposal of the present invention is as follows: The design method for a nonlinear term-cancelled movable magnet oscillator includes the following conditions: (1) A movable magnet type transducer body is provided, the movable magnet type transducer body includes an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable component assembly, the stator assembly includes a coil combination structure, the movable component assembly includes a magnet combination structure, the stator assembly is fixed inside the outer cylinder, the vibration transmission sheet is fixed to the outer cylinder, the movable component assembly and the vibration transmission sheet are fixedly connected via at least one point, of which the movable component assembly moves while the stator assembly remains stationary, the movable component assembly is called the movable member. (2) The movable assembly is subjected to electromagnetic forces from a pair of compressive and tensile forces simultaneously, exhibiting a push-pull structural characteristic. [Effects of the Invention]

[0008] This invention provides, through improvements, a nonlinear term-canceling movable magnet oscillator design method, apparatus, and use. Compared to the prior art, it has the following improvements and advantages.

[0009] 1. The present invention significantly reduces oscillator distortion and improves the fidelity of the oscillator to the original audio signal or haptic feedback signal by designing the nonlinear terms in the driving force applied to the magnet combination structure or the acceleration of the movable element assembly with respect to the current of the oscillator coil, either in pairs or in pairs, so that these nonlinear terms are completely or partially canceled out of each other and reduced in the final resultant force.

[0010] 2. The nonlinear term-canceling movable magnet transducer of the present invention reduces the total harmonic distortion in the low-frequency range from 99% of the original peak value to 15% or less of the peak value. This reduction in the distortion curve can be equivalently translated into a reduction in the resonant frequency of the transducer system, resulting in improved sound quality at low frequencies. It can also be equivalently translated into improved sensitivity and reduced power consumption of the transducer system.

[0011] 3. In the design method for a nonlinear term-canceling movable magnet type oscillator of the present invention, the forces acting on the resulting oscillator are uniform and balanced, thereby achieving translational vibration of the entire oscillator and achieving the best vibration effect. [Brief explanation of the drawing]

[0012] The present invention will be further described below with reference to the drawings and examples. [Figure 1] These are cross-sectional views of Examples 1 and 2 of the present invention. [Figure 2] These are closed field curves of the coil and permanent magnet of Embodiments 1 and 2 of the present invention. [Figure 3] This is an analytical diagram of the magnetic domains in Examples 1 and 2 of the present invention. [Figure 4] This diagram shows the relationship between magnetic domains and stator assemblies in Examples 1 and 2 of the present invention. [Figure 5] This is an analytical diagram of the forces acting on the magnetic domains and movable element assemblies in Embodiments 1 and 2 of the present invention. [Figure 6] This is an analysis diagram of the forces acting on the movable element assemblies of Embodiments 1 and 2 of the present invention. [Figure 7]These are cross-sectional views of Examples 3 and 4 of the present invention. [Figure 8] These are closed field curves of the coil and permanent magnet in Examples 3 and 4 of the present invention. [Figure 9] This is an analytical diagram of the magnetic domains in Examples 3 and 4 of the present invention. [Figure 10] This diagram shows the forces acting on the magnetic domains, the movable assembly, and the stator assembly in embodiments 3 and 4 of the present invention. [Figure 11] This is an analysis diagram of the forces acting on the magnetic domains and movable element assemblies in Embodiments 3 and 4 of the present invention. [Figure 12] These are cross-sectional views of Examples 5 and 6 of the present invention. [Figure 13] These are closed field curves of the coil and permanent magnet in Examples 5 and 6 of the present invention. [Figure 14] This is an analytical diagram of the magnetic domains in Examples 5 and 6 of the present invention. [Figure 15] This is an analysis diagram of the forces acting on the magnetic domains and movable parts assemblies, and the movable parts assemblies, in embodiments 5 and 6 of the present invention. [Figure 16] This is an analysis diagram of the forces acting on the magnetic domains and movable element assemblies in Embodiments 5 and 6 of the present invention. [Figure 17] These are cross-sectional views of Examples 7 and 8 of the present invention. [Figure 18] These are closed field curves of the coil and permanent magnet in Examples 7 and 8 of the present invention. [Figure 19] This is an analytical diagram of the magnetic domains in Examples 7 and 8 of the present invention. [Figure 20] This diagram shows the forces acting on the magnetic domains and the stator and movable assemblies in embodiments 7 and 8 of the present invention. [Figure 21] This is an analysis diagram of the forces acting on the movable element assemblies of Embodiments 7 and 8 of the present invention. [Figure 22] This is a test diagram of the total harmonic distortion (THD) of a conventional movable magnet type oscillator. [Figure 23] Test diagrams of total harmonic distortion (THD) of movable magnet oscillators according to Embodiments 1 and 2 of the present invention. [Figure 24-40a]This is a schematic diagram of the magnetic member in the present invention. [Figures 41-53] This is a schematic diagram of the coil member in the present invention. [Figure 54-59] This is a schematic diagram of magnetic domains in the present invention. [Modes for carrying out the invention]

[0013] The present invention will be described in detail below, and the technical concepts in the embodiments of the present invention will be clearly and completely explained. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all embodiments. All other drawings that a person skilled in the art can obtain without creative effort based on the embodiments of the present invention are all within the scope of protection of the present invention.

[0014] In a nonlinear term cancellation design, there are 2N sets of magnetic domains inside the oscillator, and these domains are combined in pairs, resulting in a magnetic domain D 1,i and D 2,i It is defined as follows: Here, i = 1, 2, 3, ..., N. The closed curve of the principal magnetic field lines of the coil and the closed curve of the principal magnetic field lines of the permanent magnet are the magnetic field region D, respectively. 1,i and D 2,i It passes through magnetic domain D. 1,i So, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite. Or, magnetic domain D 1,i However, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

[0015] When the direction of the magnetic field lines of a coil passing through a certain magnetic domain is the same as the direction of the magnetic field lines of a permanent magnet, the total magnetic flux is equal to the sum of the magnetic flux generated by the coil and the magnetic flux generated by the permanent magnet. When the direction of the magnetic field lines of a coil passing through a certain magnetic domain is the same as the direction of the magnetic field lines of a permanent magnet, the total magnetic flux is the difference between the magnetic flux generated by the coil and the magnetic flux generated by the permanent magnet.

[0016] The oscillator contains at least one magnetic domain. A magnetic domain is a spatial region where one or more electromagnetic fields exist to create interaction forces between the components surrounding the magnetic domain. Such a region is defined as a magnetic domain and is simply called a magnetic domain.

[0017] Magnetic Domain: A magnetic domain is a spatial region filled with electromagnetic energy, and generally consists of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes a region where a magnetic material is placed. The nonlinear term-canceling movable magnet oscillator of the present invention contains at least one magnetic field region. A magnetic field region refers to a spatial region in which one or more electromagnetic fields exist so as to generate interaction forces between the members surrounding the magnetic field region, and such a region is defined as a magnetic field region and simply called a magnetic domain. A magnetic domain is a spatial region in which magnetic forces interact, and generally consists of a permanent magnet and a spatial region between permanent magnets (where attractive or repulsive interactions occur), or a spatial region surrounded by a permanent magnet and a permeable material (where attractive interactions occur), or a spatial region surrounded by a permeable material (yoke) magnetized by a permanent magnet, or a spatial region in which magnetic field interactions occur inside a permanent magnet (the permeability of the hard magnetic material constituting the permanent magnet is close to that of air).

[0018] Multiple types of magnetic domains: 1) The space between the permanent magnets is filled with a medium (air, with a relative permeability slightly greater than 1). The above medium can be replaced with a paramagnetic material, a diamagnetic material, or a ferromagnetic material with a relative permeability of less than 1000. For example, a. Paramagnetic materials: Their relative permeability is slightly greater than 1. For example, air, oxygen, tin, aluminum, and lead are all paramagnetic materials. When a paramagnetic material is placed in a magnetic field, the magnetic induction strength B increases slightly. b. Diamagnetic materials: Their relative permeability is slightly greater than 1. For example, hydrogen, copper, graphite, silver, and zinc are all diamagnetic materials, also known as antimagnetic materials. When a diamagnetic material is placed in a magnetic field, the magnetic induction strength B decreases slightly. c. Ferromagnetic materials: Their relative permeability is slightly greater than 1 but less than 1000. For example, iron, steel, cast iron, nickel, and cobalt are all ferromagnetic materials. Materials with a relative permeability of less than 1000 include cobalt, unannealed cast iron, and annealed cast iron. Alternatively, magnetic fluids with a relative permeability of 10 or less.

[0019] As shown in Figure 54, there are permanent magnets 1 and 2, and the permanent magnets are surrounded by air. The permanent magnets attract each other.

[0020] Magnetic domain D1: The spatial region enclosed by the air medium between permanent magnet 1 and permanent magnet 2.

[0021] Magnetic domain D2: A spatial region surrounded by air, encompassing a portion of permanent magnet 2 and the surrounding portion of permanent magnet 2.

[0022] Magnetic domain D3: A spatial region enclosed by all the permanent magnets 1 and the surrounding air medium.

[0023] Magnetic domain D4: The spatial region enclosed by all permanent magnets 1 and 2, and the surrounding air medium.

[0024] Magnetic domain D5: The spatial region of permanent magnet 2 that is surrounded by air on the side away from permanent magnet 1.

[0025] Magnetic domain D6: A spatial region surrounded by a permanent magnetic material medium that encloses a portion of permanent magnet 1.

[0026] As shown in Figure 55, there are permanent magnets 1 and 2, and the permanent magnets are surrounded by air. The permanent magnets attract each other. Similarly, D1 to D6 can be defined.

[0027] 2) The space between the permanent magnet and the permeable material is filled with a medium (air, with a relative permeability close to 1).

[0028] 3) As shown in Figures 56-57, the space between the permeables is filled with a medium (air, with a relative permeability close to 1).

[0029] Magnetic domain D1: A spatial region enclosed by the air medium between permeable material 1 and permeable material 2.

[0030] Magnetic domain D2: A spatial region enclosed by a portion of the permanent magnet, a portion of permeable material 2, and the surrounding air medium.

[0031] Magnetic domain D3: The entirety of the permeable magnet 1, a portion of the permanent magnet, and the surrounding air medium that encloses the permeable magnet 1.

[0032] Magnetic domain D4: The entirety of permeable material 1 and permeable material 2, the permanent magnet, and the surrounding air medium.

[0033] Magnetic domain D5: A spatial region surrounded by air, located on the side of permeable material 2 that is away from permeable material 1.

[0034] Magnetic domain D6: A spatial region surrounded by a permanent magnetic material medium that encloses a portion of a permanent magnet.

[0035] 4) As shown in Figure 58, the space between the permeable magnet and the permeable material is filled with a medium (magnetorheological fluid, with a relative permeability between 5 and 9).

[0036] 5) The internal space of the permanent magnet is filled with a medium (permanent magnetic material, relative permeability < 1000).

[0037] As shown in Figure 59, within magnetic domain D6 in the above example, a permanent magnet material is used as the medium. For example, the permeability of sintered ferrite, samarium cobalt, and neodymium iron boron is about 1.05, bonded ferrite is also about 1.05, and the permeability range of bonded neodymium magnets is about 1.1 to 1.7.

[0038] There are two types of magnetic force acting regions. The first magnetic domain is the magnetic force acting region surrounded inside the mover assembly or the stator assembly, and the second is the magnetic force acting region surrounded by the mover assembly and the stator assembly. Pay particular attention to the second magnetic force acting region. Therefore, by analyzing the second magnetic force acting region, the force acting on the mover assembly can be analyzed, whereby the resultant force of the mover assembly in the oscillator system can be obtained, and furthermore, its vibration equation can be derived.

[0039] Embodiment 1 Referring to FIGS. 1 to 5, the design method of the non-linear term cancellation type movable magnet type oscillator includes the following conditions: (1) A movable magnet type oscillator body 11 is provided. The movable magnet type oscillator body 11 includes an outer cylinder 1, a vibration conduction sheet 7, a stator assembly, and a mover assembly. The stator assembly includes a coil combination structure, and the mover assembly includes a magnet combination structure. The coil combination structure includes a coil 3 and a first permeable body 4, and the magnet combination structure includes a permanent magnet 6 and a second permeable body 5. The stator assembly is fixed inside the outer cylinder 1, the vibration conduction sheet 7 is fixed to the outer cylinder 1, and the mover assembly and the vibration conduction sheet 7 are fixedly connected through at least one point. Among these, the mover assembly moves, while the stator assembly is stationary. The mover assembly is called a moving member. (2) The mover assembly simultaneously receives electromagnetic acting forces due to a pair of pressing forces and tensile forces, showing the structural characteristics of a push-pull type.

[0040] Inside the movable magnet type oscillator body 11, 2N magnetic domains D 1,i and D 2,i designed in pairs are provided, where N is 1, 2, 3,..., 100, and i = 1, 2, 3,....

[0041] Limit the number of permanent magnets in the magnet combination structure and the number of coils in the coil combination structure. The number of permanent magnets is N 磁石 , and the number of coils is Nコイル Therefore, N 磁石 >N コイル or N 磁石 <N コイル Nishi, N 磁石 The values ​​are 1, 2, 3, ..., 100, and N コイル The values ​​are 1, 2, 3, ..., 100.

[0042] In the structural characteristics of the push-pull type, the linear terms of the electromagnetic force acting on the movable assembly are superimposed on each other and increase, while the nonlinear terms of the electromagnetic force acting on the movable assembly are partially or completely canceled out and decrease.

[0043] The closed curve of the main magnetic field lines of the coil in a coil combination structure and the closed curve of the main magnetic field lines of the permanent magnet in a magnet combination structure are, in each case, magnetic domain D. 1,i and D 2,i A magnetic domain is a spatial region filled with electromagnetic energy, and is generally composed of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes the region where the magnetic material is placed, and furthermore, magnetic domain D 1,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, or magnetic domain D 1,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, and magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

[0044] Here, the vibration conduction sheet 7 can have different structures depending on the usage scenario, such as rectangular, circular, racetrack-shaped, or three-dimensional, and these can be used in combination depending on the usage scenario. The vibration conduction sheet 7 is usually fixed to the top, bottom, or center of the outer cylinder 1.

[0045] The stator assembly is fixed inside the outer cylinder 1, and may be fixed to the inner wall, top surface, or bottom surface of the outer cylinder 1. The movable assembly and the vibration conduction sheet 7 are fixedly connected through at least one point, which includes point contact and surface contact, and may be one point, two points, or multiple points.

[0046] The number of permanent magnets 6 and coils 3 is limited. The number of permanent magnets is 1, and the number of coils is 2.

[0047] Inside the movable magnet type oscillator body 11, two magnetic regions D 1,1 and D 2,1 are provided symmetrically in pairs. The closed curve of the main magnetic force lines of the coil 3 and the closed curve of the main magnetic force lines of the permanent magnet 6 pass through the magnetic regions D 1,1 and D 2,1 respectively. Furthermore, in the magnetic region D 1,1 , the direction of the magnetic force lines of the coil 3 is the same as that of the permanent magnet 6, while in the magnetic region D 2,1 , the direction of the magnetic force lines of the coil 3 is opposite to that of the permanent magnet 6.

[0048] Two forces are applied to the moving member, and each component force includes two parts: a linear term of the excitation current i and a non-linear term of the excitation current i. JPEG2026527478000002.jpg13170

[0049] In this case, the resultant force applied to the moving member also includes two parts: a linear term of the current i and a non-linear term of the current i. JPEG2026527478000003.jpg6170Here, JPEG2026527478000004.jpg85170

[0050] JPEG2026527478000005.jpg21170

[0051] The movable assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, and the closed curves of the main magnetic field lines of the coil 3 and the closed curves of the main magnetic field lines of the permanent magnet 6 alternately pass through the movable assembly and the stator assembly, respectively. The following conditions are also included: (3.1) When viewed from the center outward, the permanent magnet 6 is on the inside and the coil 3 is on the outside. (3.2)N コイル =2, n=1, (3.3)N コイル If >1, the direction of the current in adjacent coils 3 is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils 3 is the same.

[0052] A permeable material is used in the part of the outer cylinder 1 closest to the coil 3, minimizing the magnetic resistance of the magnetic path of the electromagnets 6 that make up the coil 3. The permanent magnets 6 of the magnet assembly are isolated from each other by the permeable material. A yoke is used around the coil 3 and the permanent magnets 6, or, in the case of a coil combination structure, a permeable outer cylinder is used in the part of the outer cylinder 1 closest to the coil 3.

[0053] Example 2 Referring to Figures 1-5, the nonlinear term-canceling movable magnet oscillator device designed by the method of Embodiment 1 includes a movable magnet oscillator body 11, the movable magnet oscillator body 11 includes an outer cylinder 1, a vibration transmission sheet 7, a stator assembly, and a movable element assembly, the stator assembly includes a coil combination structure, the movable element assembly includes a magnet combination structure, the coil combination structure includes a coil 3 and a first permeable body 4, and the magnet combination structure includes a permanent magnet 6 and a second permeable body 5. The outer cylinder 1 may be a permeable outer cylinder or a non-permeable outer cylinder, but a permeable outer cylinder is preferred to reduce magnetic resistance. The cross-section of the outer cylinder may be circular, square, or irregular in shape, and may be continuous or discontinuous, for example, cylindrical and continuous or grid-like and discontinuous.

[0054] The coil combination structure further includes a first permeable ring 2, and when viewed from the center outward, the coil 3 is on the outside, the permanent magnet 6 is on the inside, there is one permanent magnet 6, there are two coils 3, the direction of the current in adjacent coils 3 is opposite, the polarity of the electromagnetic field at the two adjacent end faces of the two coils 3 is the same, there are two vibration conduction sheets 7 installed, the two vibration conduction sheets 7 are fixed to the top and bottom surfaces of the outer cylinder 1 respectively, the permanent magnet 6 is fixed inside the second permeable body 5, and both ends of the second permeable body 5 are the vibration conduction sheets The first permeable body 4 is fixed to the guide sheet 7, the central part of the inner wall of the outer cylinder 1, the two coils 3 are fixed to both sides of the first permeable body 4, the first permeable ring 2 is fixed to the outside of the two coils 3, both the coils 3 and the first permeable ring 2 are fixed to the inner wall of the outer cylinder 1, the movable element assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, the closed curves of the main magnetic field lines of the coils 3 and the closed curves of the main magnetic field lines of the permanent magnet 6 alternately pass through the movable element assembly and the stator assembly, respectively. Inside the movable magnet oscillator body are two magnetic domains D designed to be symmetrical, two at a time. 1,1 and D 2,1 A closed curve of the main magnetic field lines of the coil 3 and the closed curve of the main magnetic field lines of the permanent magnet 6 are, respectively, magnetic domain D 1,1 and D 2,1 It passes through, and furthermore, magnetic domain D 1,1 Therefore, the magnetic field line direction of the coil 3 and the magnetic field line direction of the permanent magnet 6 are the same, while the magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of coil 3 and the direction of the magnetic field lines of permanent magnet 6 are opposite.

[0055] To further illustrate the design method of a nonlinear term-canceling movable magnet oscillator, refer to Figures 2 and 3, where the air gap 1 is in the magnetic field region D. 1,1 The air gap 2 constitutes the magnetic field region D. 2,1This constitutes the magnetic field. Within the magnetic field region, the magnetic field generated by the permanent magnet 6 and the magnetic field generated by the electromagnet of coil 3 superimpose on each other, resulting in a total magnetic flux / magnetic induction strength that generates interaction forces in the components surrounding the magnetic domain.

[0056] The current flowing through coil C1 and the current flowing through coil C2 are both i, but the direction of the current in coil C1 and the direction of the current in coil C2 are opposite. The magnetic flux corresponding to coil C1 is Φ. i1 , the magnetic flux corresponding to coil C2 is Φ i2 , the magnetic flux corresponding to the permanent magnet is Φ m Let us assume that in magnetic domain D1 (magnetic field region D1), the direction of the magnetic field lines corresponding to coil C1 and the direction of the magnetic field lines corresponding to the permanent magnet are the same, therefore, in magnetic domain D1, the total magnetic flux is Φ i1 and Φ m This is the sum of the two. In magnetic domain D2 (magnetic field region D2), the direction of the magnetic field lines corresponding to coil C2 and the direction of the magnetic field lines corresponding to the permanent magnet are opposite, therefore, in magnetic domain D2, the total magnetic flux is Φ i2 and Φ m This is the difference. Assuming that the direction of the magnetic field lines of the permanent magnet 6 is positive in each magnetic domain, the following is obtained. ΦD1 = Φ m +Φ i1 ΦD2 = Φ m -Φ i2

[0057] The magnetic resistance of the magnetic path due to the electromagnetic field generated by the currents in coil 1 and coil 2 is Z, respectively. i1 and Z i2 Assuming that N is the number of turns in the coil and i is the current intensity, the following is obtained. JPEG2026527478000006.jpg14170

[0058] JPEG2026527478000007.jpg24170

[0059] JPEG2026527478000008.jpg34170

[0060] Referring to Figure 2, which shows the closed field curves for coil C1, coil C2, and the permanent magnet, respectively. In the figure, the closed field lines generated by coil C1 pass through magnetic gap D1, the closed field lines generated by coil C1 pass through magnetic gap D2, and the closed field lines generated by the permanent magnet pass through magnetic gap D1 and magnetic gap D2 in sequence.

[0061] Referring to Figure 3, Figure 3 shows the movable part assembly, magnetic domain D 1,1 , D 2,1 This is a diagram showing the relationship between the magnetic domain D and the stator assembly. 1,11 Then, a rightward attractive force F1 is applied to the movable assembly from the stator assembly, and magnetic domain D 1,1 Then, a leftward suction force F2 is applied to the movable assembly from the stator assembly. If we consider the rightward direction to be positive, the resultant force of the stator assembly acting on the movable assembly is F1 - F2.

[0062] Referring to Figure 5, Figure 3 is an analysis diagram of the forces separated from the movable assembly. The movable assembly is subjected to forces from the stator assembly, which are a rightward attractive force F1 and a leftward attractive force F2, respectively, and their resultant force is F1 - F2. JPEG2026527478000009.jpg6170

[0063] Furthermore, we derive the equation for the electromagnetic force generated in each magnetic domain. The magnitude of the electromagnetic attractive force acting on a magnetized ferromagnetic object is proportional to the total area of ​​the magnetic poles through which the magnetic field lines pass and the square of the magnetic induction strength. When the magnetic induction strength B is uniformly distributed along the surface of the magnetic poles and the calculated air gap length is relatively small, the equation for calculating the electromagnetic attractive force is Maxwell's formula, which can be expressed as follows. JPEG2026527478000010.jpg16170JPEG2026527478000011.jpg34170 Depending on the scenario, the value will differ. In the case of the force acting between permanent magnets, C m2mand its value is usually 1. During actual design, an accurate value can be obtained through actual measurement. In the case of the acting force between a permanent magnet and a permeable magnet (yoke), C m2y and its value is usually 1 / 2. During actual design, an accurate value can be obtained through actual measurement. In the case of the acting force between a permeable magnet (yoke) and a permeable magnet (yoke), C y2y is described, and its value is usually 1 / 4. During actual design, an accurate value can be obtained through actual measurement.

[0064] When the above formula is used to calculate the electromagnetic attraction force in the above magnetic regions 1 and 2, the following is obtained. JPEG2026527478000012.jpg3,6170

[0065] Here, S D1 and S D2 are the areas of the annular end faces corresponding to magnetic regions 1 and 2 respectively, and S D1 = S D1 = S D Therefore, the following is obtained. JPEG2026527478000013.jpg,59170 Here, JPEG2026527478000014.jpg,83170 For JPEG2026527478000015.jpg,29170 JPEG2026527478000016.jpg,13170 JPEG2026527478000017.jpg,89170 JPEG2026527478000018.jpg,49170 Thus, the resultant force acting on the movable magnet, which is the moving member, is as follows. JPEG2026527478000019.jpg,36170

[0066] From the above derivation process, the following characteristics are obtained. JPEG2026527478000020.jpg,37170

[0067] The design method described above is called the design method for nonlinear term-canceling movable magnet oscillators. This method can be applied not only to oscillator design but also to brake design. A movable magnet oscillator or brake obtained by the above method is also called a nonlinear term-canceling movable magnet oscillator device or brake.

[0068] Referring to Figure 22, as can be seen from the figure, the total harmonic distortion in the low-frequency range has been significantly reduced from 99% of the original peak value to less than 15% of the peak value, showing a remarkable improvement.

[0069] The reduction in the distortion curve can be equivalent to a reduction in the resonant frequency of the transducer system, thus improving sound quality. Furthermore, it can be equivalent to an improvement in the sensitivity and a reduction in power consumption of the transducer system. Example 3

[0070] Referring to Figures 6-10, the design method for a nonlinear term-canceling movable magnet oscillator includes the following conditions: (1) A movable magnet type transducer body 11 is provided, the movable magnet type transducer body 11 includes an outer cylinder 1, a vibration transmission sheet 8, a stator assembly, and a movable member assembly, the stator assembly includes a coil combination structure, the movable member assembly includes a magnet combination structure, the coil combination structure includes a coil 3 and a first permeable body 7, the magnet combination structure includes a permanent magnet 6 and a second permeable body 4, the stator assembly is fixed inside the outer cylinder 1, the vibration transmission sheet 8 is fixed to the outer cylinder 1, the movable member assembly and the vibration transmission sheet 8 are fixedly connected via at least one point, of which the movable member assembly moves while the stator assembly remains stationary, the movable member assembly is called the movable member, (2) The movable assembly is subjected to electromagnetic forces from a pair of compressive and tensile forces simultaneously, exhibiting a push-pull structural characteristic.

[0071] Inside the movable magnet oscillator body 11 are 2N magnetic domains D designed in pairs. 1,iand D 2,i A set is provided where N is 1, 2, 3, ..., 100, and i = 1, 2, 3, ... The number of permanent magnets in a magnet combination structure and the number of coils in a coil combination structure are limited, and the number of permanent magnets is set to N 磁石 , the number of coils is N コイル Therefore, N 磁石 >N コイル or N 磁石 <N コイル Nishi, N 磁石 The values ​​are 1, 2, 3, ..., 100, and N コイル The values ​​are 1, 2, 3, ..., 100.

[0072] In the push-pull structural features, the linear terms of the electromagnetic force acting on the movable assembly increase due to superposition, while the nonlinear terms of the electromagnetic force acting on the movable assembly decrease due to partial or complete cancellation.

[0073] The closed curve of the main magnetic field lines of the coil in a coil combination structure and the closed curve of the main magnetic field lines of the permanent magnet in a magnet combination structure are, in each case, magnetic domain D. 1,i and D 2,i A magnetic domain is a spatial region filled with electromagnetic energy, and is generally composed of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes the region where the magnetic material is placed, and furthermore, magnetic domain D 1,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, or magnetic domain D 1,i However, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

[0074] Next, limit the number of permanent magnets 6 and coils 3, so that the number of permanent magnets is 2 and the number of coils is 1. Inside the movable magnet oscillator body 11 are two magnetic domains D designed to be symmetrical, two at a time.1,1 and D 2,1 A closed curve of the main magnetic field lines of the coil 3 and the closed curve of the main magnetic field lines of the permanent magnet 6 are, respectively, magnetic domain D 1,1 and D 2,1 It passes through, and furthermore, magnetic domain D 1,1 However, the magnetic field lines direction of coil 3 and the magnetic field lines direction of permanent magnet 6 are opposite, while magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of the coil 3 and the direction of the magnetic field lines of the permanent magnet 6 are the same. Two forces act on the moving member, and each component force includes two parts: a linear term of the excitation current i and a nonlinear term of the excitation current i. JPEG2026527478000021.jpg7170 Here, n = 1, 2, 3, ..., 2N-1, 2N.

[0075] In this case, the resultant force acting on the moving member also includes two parts: a linear term of current i and a nonlinear term of current i. JPEG2026527478000022.jpg7170 Here, JPEG2026527478000023.jpg85170

[0076] JPEG2026527478000024.jpg21170

[0077] The movable assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, and the closed curves of the main magnetic field lines of the coil 3 and the closed curves of the main magnetic field lines of the permanent magnet 6 alternately pass through the movable assembly and the stator assembly, respectively. The following conditions are also included: (3.1) When viewed from the center outward, the coil 3 is on the inside and the permanent magnet 6 is on the outside. (3.2)N 磁石 = 2, n is a natural number, and n=1, (3.3)N 磁石 If >1, the polarity of the two opposite end faces of adjacent permanent magnets is the same.

[0078] A permeable material is used in the part of the outer cylinder 1 closest to the coil 3 to minimize the magnetic resistance of the magnetic path of the electromagnet 6 that constitutes the coil 3. In a magnet assembly, the permanent magnets 6 are isolated from each other by a permeable material, and a yoke is used around the coil 3 and the permanent magnets 6, or, in the case of a coil combination structure, a permeable outer cylinder is used in the part of the outer cylinder 1 closest to the coil.

[0079] Example 4 Referring to Figures 6-10, the nonlinear term-canceling movable magnet oscillator device designed by the method of Embodiment 3 includes a movable magnet oscillator body 11, the movable magnet oscillator body includes an outer cylinder 1, a vibration conduction sheet 8, a stator assembly, and a movable element assembly, the stator assembly includes a coil combination structure, the movable element assembly includes a magnet combination structure, the coil combination structure includes a coil 3 and a first permeator 7, the magnet combination structure includes a permanent magnet 6 and a second permeator 4, the coil combination structure further includes a first permeator ring 5, the magnet combination structure further includes a second permeator ring 2, and viewed from the center outward, the coil 3 is on the inside, the permanent magnet 6 is on the outside, there are two permanent magnets 6, there is one coil 3, the polarity of the two opposite end faces of adjacent permanent magnets 6 is the same, there is one vibration conduction sheet 8, and the vibration conduction sheet 8 is fixed to the top surface of the outer cylinder 1. To reduce magnetic resistance, a permeable outer cylinder is preferably used as the outer cylinder 1.

[0080] One end of the first permeable magnet 7 is fixed to the bottom surface of the outer cylinder 1, the coil 3 is wound around and fixed to the first permeable magnet 7, the first permeable ring 5 is fixed to one end of the first permeable magnet 7, and the vibration conduction bracket 9 is L-shaped. The horizontal portion of the vibration conduction bracket 9 is parallel to the vibration direction, the second permeable magnet 4 is fixed to the horizontal portion of the vibration conduction bracket 9, the permanent magnet 6 is fixedly installed on both sides of the second permeable magnet 4, and the two permanent magnets 4 are fixed to the horizontal portion of the vibration conduction bracket 9. The rotor assembly and the stator assembly are arranged in a shape where the concave and convex portions engage with each other alternately. The closed curves of the main magnetic force lines of the coil 3 and the closed curves of the main magnetic force lines of the permanent magnet 6 respectively pass through the rotor assembly and the stator assembly alternately. Inside the moving magnet type vibrator body, two magnetic domains D 1,1 and D 2,1 are provided, and the closed curves of the main magnetic force lines of the coil and the closed curves of the main magnetic force lines of the permanent magnet respectively pass through magnetic domains D 1,1 and D 2,1 . In magnetic domain D 1,1 , the direction of the magnetic force lines of the coil 3 is opposite to the direction of the magnetic force lines of the permanent magnet 6, while in magnetic domain D 2,1 , the direction of the magnetic force lines of the coil 3 is the same as the direction of the magnetic force lines of the permanent magnet 6. <​​​​​​​​​​​​​​​​​​​i , the magnetic flux corresponding to the permanent magnet M1 is Φ m1、 The magnetic flux corresponding to the permanent magnet M2 is Φ m2 Let's assume that magnetic domain D 1,1 (Magnetic action area D 1、1 In this case, the direction of the magnetic field lines corresponding to coil C and the direction of the magnetic field lines corresponding to permanent magnet M1 are opposite, therefore, magnetic domain D 1,1 So, the total magnetic flux is Φ i and Φ m1 This is the difference between the two. Magnetic domain D 2,1 (Magnetic action area D 2,1 In this case, the direction of the magnetic field lines corresponding to the coil and the direction of the magnetic field lines corresponding to the permanent magnet M2 are opposite, therefore, magnetic domain D 2,1 So, the total magnetic flux is Φ i and Φ m2 This is the sum of the two. Therefore, since the magnetic field due to the permanent magnet is static, assuming that the direction of the magnetic field lines of the permanent magnet is positive and the magnetic flux is also positive, the following is obtained. ΦD 1、1 =Φ m1 -Φ i ΦD 2,1 =Φ m2 +Φ i

[0083] The magnetic resistance of the magnetic path due to the electromagnetic field generated by the current i in the above coil is Z. i Assuming N is the number of turns in the coil and i is the current intensity, the following is obtained. JPEG2026527478000025.jpg7170

[0084] JPEG2026527478000026.jpg18170

[0085] JPEG2026527478000027.jpg44170

[0086] Referring to Figure 7, Figure 7 is a schematic diagram showing the closed magnetic field lines of the coil, permanent magnet M1, and permanent magnet M2, respectively. In the figure, the closed magnetic field lines generated by magnet M1 are shown across the magnetic gap D 1、1 The closed magnetic field lines generated by magnet M2 pass through the magnetic gap D. 2,1The closed magnetic field lines generated by the coil pass through the magnetic gap D1 and then through the magnetic gap D2 in sequence.

[0087] Referring to Figure 9, Figure 9 shows the movable part assembly, magnetic domain D 1,1 , D 2,1 This is a diagram showing the relationship between the magnetic domain D and the stator assembly. 1,1 Then, a leftward attractive force F1 is applied to the movable assembly from the stator assembly, and magnetic domain D 2,1 Then, a rightward attractive force F2 is applied to the movable assembly from the stator assembly. If we consider the rightward direction to be positive, the resultant force from the stator assembly acting on the movable assembly is -F1 + F2.

[0088] Referring to Figure 10, which is an analysis diagram of the forces separated from the movable assembly. The movable assembly is subjected to forces from the stator assembly, which are a leftward attractive force F1 and a rightward attractive force F2, respectively, and their resultant force is -F1+F2. JPEG2026527478000028.jpg6170

[0089] Furthermore, we derive the equation for the electromagnetic force generated in each magnetic domain. The magnitude of the electromagnetic attractive force acting on a magnetized ferromagnetic object is proportional to the total area of ​​the magnetic poles through which the magnetic field lines pass and the square of the magnetic induction strength. When the magnetic induction strength B is uniformly distributed along the surface of the magnetic poles and the calculated air gap length is relatively small, the equation for calculating the electromagnetic attractive force is Maxwell's formula, which can be expressed as follows. JPEG2026527478000029.jpg16170JPEG2026527478000030.jpg29170C: Correlation coefficient between the type and shape of the combination of magnetic pole end faces. Its value differs depending on the scenario. In the case of the force acting between permanent magnets, C m2m The value is usually 1. An accurate value can be obtained through actual measurement during the design phase. In the case of the force between a permanent magnet and a permeable magnet (yoke), C m2yThe value is usually 1 / 2. The accurate value can be obtained through actual measurement during the design phase. In the case of the force acting between two permeable magnets (yokes), C y2y It is stated that the value is usually 1 / 4. The accurate value can be obtained through actual measurement during the design phase.

[0090] Applying the above formula to the calculation of the electromagnetic attractive force in magnetic domains D1 and D2, we obtain the following: JPEG2026527478000031.jpg37170

[0091] Here, S D1 S D2 These are magnetic domain D, respectively. 1,1 , D 2,1 The area of ​​the annular end face corresponding to S D1 =S D1 =S D Therefore, the following is obtained. JPEG2026527478000032.jpg36170JPEG2026527478000033.jpg17170Here, For JPEG2026527478000034.jpg31170 and JPEG2026527478000035.jpg44170, The file JPEG2026527478000036.jpg24170 is obtained. For JPEG2026527478000037.jpg13170 and JPEG2026527478000038.jpg84170, The file JPEG2026527478000039.jpg14170 is obtained. JPEG2026527478000040.jpg29170 As a result, the resultant force acting on the movable magnet, which is the moving component, is as follows. JPEG2026527478000041.jpg36170

[0092] From the above derivation process, the following characteristics can be obtained. JPEG2026527478000042.jpg37170

[0093] The design method described above is called the design method for nonlinear term-canceling movable magnet oscillators. This method can be applied not only to oscillator design but also to brake design. A movable magnet oscillator or brake obtained by the above method is also called a nonlinear term-canceling movable magnet oscillator device or brake.

[0094] Example 5 Referring to Figures 11-15, the design method for a nonlinear term-canceling movable magnet oscillator includes the following conditions.

[0095] (1) A movable magnet vibrator body 11 is provided, the movable magnet vibrator body 11 includes an outer cylinder 1, a vibration transmission sheet 10, a stator assembly, and a movable member assembly, the stator assembly includes a coil combination structure, the movable member assembly includes a magnet combination structure, the coil combination structure includes a coil 7 and a first permeable body 5, the magnet combination structure includes a permanent magnet 3 and a second permeable body 2, the coil combination structure is fixed inside the outer cylinder 1, the vibration transmission sheet 10 is fixed to the outer cylinder 1, the movable member assembly and the vibration transmission sheet 10 are fixedly connected via at least one point, of which the movable member assembly moves while the stator assembly remains stationary, and the movable member assembly is called the movable member.

[0096] (2) The movable assembly exhibits a push-pull structural characteristic when subjected to electromagnetic forces from a pair of compressive and tensile forces.

[0097] Inside the movable magnet oscillator body 11 are 2N magnetic domains D designed in pairs. 1,i and D 2,i A set is provided where N is 1, 2, 3, ..., 100, and i = 1, 2, 3, ... The number of permanent magnets in a magnet combination structure and the number of coils in a coil combination structure are limited, and the number of permanent magnets is set to N 磁石 , the number of coils is N コイルTherefore, N 磁石 >N コイル or N 磁石 <N コイル Nishi, N 磁石 The values ​​are 1, 2, 3, ..., 100, and N コイル The values ​​are 1, 2, 3, ..., 100.

[0098] In the push-pull structural features, the linear terms of the electromagnetic force acting on the movable assembly are superimposed and increase, while the nonlinear terms of the electromagnetic force acting on the movable assembly are partially or completely canceled out and decrease.

[0099] The closed curve of the main magnetic field lines of the coil in a coil combination structure and the closed curve of the main magnetic field lines of the permanent magnet in a magnet combination structure are, in each case, magnetic domain D. 1,i and D 2,i A magnetic domain is a spatial region filled with electromagnetic energy, and is generally composed of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes the region where the magnetic material is placed, and furthermore, magnetic domain D 1,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, or magnetic domain D 1,i However, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

[0100] The number of permanent magnets 3 and coils 7 is limited; the number of permanent magnets 3 is 1, and the number of coils is 2. Inside the movable magnet oscillator body 11 are four magnetic domains D designed to be symmetrical in pairs. 1,1 , D 2,1 , D 1,2 , and D 2,2 A closed curve of the main magnetic field lines of the coil 7 and the closed curve of the main magnetic field lines of the permanent magnet 3 are, respectively, magnetic domain D 1,1 , D 2,1、 D 1,2 , and D2,2 It passes through, and furthermore, magnetic domain D 1,1 However, the magnetic field lines direction of the coil 7 and the magnetic field lines direction of the permanent magnet 3 are opposite, while the magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of the coil 7 and the direction of the magnetic field lines of the permanent magnet 3 are the same. Four forces act on the moving member, and each component force includes two parts: a linear term of the excitation current i and a nonlinear term of the excitation current i. JPEG2026527478000043.jpg7170 Here, n = 1, 2, 3, ..., 2N-1, 2N, In this case, the resultant force acting on the moving member also includes two parts: a linear term of current i and a nonlinear term of current i. JPEG2026527478000044.jpg7170 Here, JPEG2026527478000045.jpg85170

[0101] JPEG2026527478000046.jpg22170

[0102] The movable assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, and the closed curves of the main magnetic field lines of the coil 7 and the closed curves of the main magnetic field lines of the permanent magnet 3 alternately pass through the movable assembly and the stator assembly, respectively. The following conditions are also included: (3.1) When viewed from the center outward, the coil 7 is on the inside and the permanent magnet 3 is on the outside. (3.2)N コイル = 2, n is a natural number, and n=1, (3.3)N コイル If >1, the current directions of adjacent coils are opposite, and the polarity of the electromagnetic fields at the two adjacent end faces of two adjacent coils is the same.

[0103] A permeable material is used in the part of the outer cylinder 1 closest to the coil 7, minimizing the magnetic resistance of the magnetic path of the electromagnets 3 that make up the coil 7. In the magnet assembly, the permanent magnets 3 are isolated from each other by the permeable material, and a yoke is used around the coil 7 and the permanent magnets 3. Alternatively, in the case of a coil combination structure, a permeable outer cylinder is used in the part of the outer cylinder 1 closest to the coil.

[0104] Example 6 Referring to Figures 11-15, the nonlinear term-canceling movable magnet oscillator device designed by the method of Embodiment 5 includes a movable magnet oscillator body 11, the movable magnet oscillator body 11 includes an outer cylinder 1, a vibration transmission sheet 10, a stator assembly, and a movable element assembly, the stator assembly includes a coil combination structure, the movable element assembly includes a magnet combination structure, the coil combination structure includes a coil 7 and a first permeator 9, the magnet combination structure includes a permanent magnet 3 and a first permeator 2, the coil combination structure further includes a first permeator ring 4 and a second permeator ring 5. Viewed from the center outward, the coil 7 is on the inside, the permanent magnet 3 is on the outside, there is one permanent magnet 3, there are two coils 7, the direction of current in adjacent coils 7 is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils 7 is the same. One vibration conduction sheet 10 is installed and fixed to the top surface of the outer cylinder 1. One end of the first permeable body 9 is fixed to the bottom surface of the outer cylinder 1, the two coils 7 are wound around and fixed to the first permeable body 9, the second permeable ring 5 is fixed to one end of the first permeable body 9, and the first permeable ring 4 is positioned around the center of the first permeable body 9 and fixed between the two coils 7. The vibration conduction bracket 8 is L-shaped, with the horizontal portion of the vibration conduction bracket 8 parallel to the vibration direction. The permanent magnet 3 is fixed to the center of the horizontal portion of the vibration conduction bracket 8, and the second permeable body 2 is located on both sides of the permanent magnet 3 and fixed to the horizontal portion of the vibration conduction bracket 8. The movable assembly and the stator assembly have a shape in which concave and convex portions are arranged to interlock alternately. The closed curves of the main magnetic field lines of the coil 7 and the closed curves of the main magnetic field lines of the permanent magnet 3 alternately pass through the movable element assembly and the stator assembly, respectively. Inside the movable magnet oscillator body are four magnetic domains D, designed to be symmetrical in pairs. 1,1 , D 2,1 , D 1,2 , D 2,2 A is provided, and here, D 1,1 and D 2,1 D is symmetric, 1,2 and D2,2 The two are symmetrical. The closed curve of the main magnetic field lines of the coil 7 and the closed curve of the main magnetic field lines of the permanent magnet 3 are, respectively, magnetic domain D 1,1 , D 2,1、 D 1,2 , D 2,2 It passes through magnetic domain D. 1,1 In contrast, the magnetic field lines direction of the coil 7 and the magnetic field lines direction of the permanent magnet 3 are opposite, while the magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of the coil 7 and the direction of the magnetic field lines of the permanent magnet 3 are the same.

[0105] To further illustrate the design method of a nonlinear term-canceling movable magnet oscillator, refer to Figures 11-13, which show four magnetic force regions D, each composed of an air gap. 1,1 , D 2,1 , D 1,2 , D 2,2 Within the magnetic field region, the magnetic field generated by the permanent magnet 3 and the magnetic field generated by the electromagnet of coil 7 superimpose on each other, resulting in a total magnetic flux / magnetic induction strength that generates interaction forces in the components surrounding the magnetic domain. The above magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 Since these magnetic domains are all enclosed by stator and mover assemblies, interaction components arise between the stator and mover assemblies within these domains.

[0106] i1 is the current flowing through coil C1, i2 is the current flowing through coil C2, and Φ is the magnetic flux corresponding to each coil. i1 and Φ i2 Let's assume that the magnetic flux corresponding to the permanent magnet M1 is Φ. M1 Let's assume that.

[0107] Magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 Depending on the symmetrical situation, two magnetic domain pairs D j =(D 1,j , D 2,j )(j=1,2) contains the magnetic domain pair D1=(D 1,1 , D2,1 ), and the magnetic domain pair D2=(D 1,2 , D 2,2 ) is included.

[0108] 1) Magnetic domain pair D j =(D 1,j , D 2,j ), in the case of j=1, that is, the magnetic domain pair D1=(D 1,1 , D 2,1 ) magnetic flux Magnetic domain D 1,1 Therefore, since the direction of the magnetic field lines corresponding to coil C1 and the direction of the magnetic field lines corresponding to permanent magnet M1 are opposite, magnetic domain D 1,1 So, the total magnetic flux is Φ i1 and Φ M1 =Φ m This is the difference between the two. Magnetic domain D 2,1 Therefore, since the direction of the magnetic field lines corresponding to coil C2 and the direction of the magnetic field lines corresponding to permanent magnet M1 are the same, magnetic domain D 2,1 So, the total magnetic flux is Φ i2 and Φ M1 =Φ m It is the sum of the two.

[0109] i1=i2=i, Φ i1 =Φ i2 =Φ i Assuming that the magnetic field lines of magnet M1 are in the positive direction and the magnetic flux is also positive, the following is obtained. ΦD 1,1 =Φ M1 -Φ i1 =Φ m -Φ i ΦD 2,1 =Φ M1 +Φ i2 =Φ m +Φ i 2) Magnetic domain pair D j =(D 1,j , D 2,j ), in the case of i=2, that is, the magnetic domain pair (D 1,2 , D 2,2 ) magnetic flux Magnetic domain D 1,2 Therefore, since only the magnetic field lines corresponding to coil C1 pass through, the total magnetic flux is Φ i1 =Φ iThat is all. Magnetic domain D 2,2 Therefore, since only the magnetic field lines corresponding to coil C2 pass through, the total magnetic flux is Φ i2 =Φ i That is all.

[0110] JPEG2026527478000047.jpg25170

[0111] The permeance of the magnetic path due to the electromagnetic field generated by the electric current is G. i Assuming this, we obtain the following: JPEG2026527478000048.jpg7170

[0112] JPEG2026527478000049.jpg16170

[0113] This yields the following: JPEG2026527478000050.jpg33170

[0114] Referring to Figure 12, which shows the closed field curves of coils C1 and C2, and the closed field curve of magnet M1. In the figure, the closed field lines generated by coil C1 are shown across the magnetic gap D 1,1 , D 1,2 The closed magnetic field lines generated by coil C2 pass through the magnetic gap D 2,1 , D 2,2 The closed magnetic field lines generated by magnet M1 pass through the magnetic gap D 1,1 , D 2,1 They pass through them in order.

[0115] Referring to Figure 14, Figure 14 shows the movable part assembly, magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 This is a diagram showing the relationship between the magnetic domain D and the stator assembly. 1,1 Then, a leftward suction force F from the stator assembly is applied to the movable assembly. 1,1 It is applied to magnetic domain D 2,1 So, the movable assembly is subjected to a rightward suction force F from the stator assembly. 2,1It is applied to magnetic domain D 1,2 So, the movable assembly is subjected to a rightward suction force F from the stator assembly. 1,2 It is applied to magnetic domain D 2,2 Then, a leftward suction force F from the stator assembly is applied to the movable assembly. 2,2 It will cost money.

[0116] Magnetic domain pair D j =(D 1,j , D 2,j The resultant force corresponding to ) is F j Let's assume that (positive and negative represent different directions of force). If we consider the rightward direction as positive, the resultant force on the stator assembly acting on the movable assembly is as follows: F 可動磁石 =F1+F2=F 1,1 -F 2,1 -F 1,2 +F 2,2 F 可動磁石 =F1+F 2= (F 1,1 -F 2,1 )+(-F 1,2 +F 2,2 ) Here, F j This is magnetic domain pair D j =(D 1,j , D 2,j It is the resultant force against ).

[0117] Referring to Figure 15, which is an analysis diagram of the forces separated from the movable assembly, the movable assembly receives the component force F from the stator assembly. 1,1 F 2,1 F 1,2 F 2,2 The following are the results of these forces: JPEG2026527478000051.jpg8170

[0118] The above can also be expressed as the direction of the force being reflected in the sign of the force component. In this case, the following is obtained. JPEG2026527478000052.jpg17170

[0119] Each component force is divided into two magnetic domain pairs, and each of these pairs is a different magnetic domain pair D j It corresponds to the resultant force of the component forces, for example, F1 = F 1,1 -F 2,1 , and F2=-F 1,2 +F 2,2 Next, the overall strength is calculated.

[0120] Furthermore, we derive the equation for the electromagnetic force generated in each magnetic domain. The magnitude of the electromagnetic attractive force acting on a magnetized ferromagnetic object is proportional to the total area of ​​the magnetic poles through which the magnetic field lines pass and the square of the magnetic induction strength. When the magnetic induction strength B is uniformly distributed along the surface of the magnetic poles and the calculated air gap length is relatively small, the equation for calculating the electromagnetic attractive force is Maxwell's formula, which can be expressed as follows. JPEG2026527478000053.jpg16170JPEG2026527478000054.jpg29170C: Correlation coefficient between the type and shape of the combination of magnetic pole end faces. Its value differs depending on the scenario. In the case of the force acting between permanent magnets, C m2m The value is usually 1. An accurate value can be obtained through actual measurement during the design phase. In the case of the force between a permanent magnet and a permeable magnet (yoke), C m2y The value is usually 1 / 2. The accurate value can be obtained through actual measurement during the design phase. In the case of the force acting between two permeable magnets (yokes), C y2y The value is usually 1 / 4 of that. A more accurate value can be obtained through actual measurement during the design phase.

[0121] 1) F j Calculation of (j=1), magnetic domain pair D j =(D 1,j , D 2,j ), corresponds to j=1 Magnetic domain pair D1 = (D 1,1 , D 2,1 The resultant force F1 = F of the component forces corresponding to ) 1,1 -F 2,1 Therefore, the above equation is applied to the above magnetic domain D 1,1 and magnetic domain D 2,1When used to calculate the electromagnetic attractive force, the following is obtained. JPEG2026527478000055.jpg40170 Here, S D1,1 S D2,1 These are magnetic domain D, respectively. 1,1 and D 2,1 The area of ​​the annular end face corresponding to S D1,1 =S D2,1 =S D Therefore, the following is obtained. JPEG2026527478000056.jpg36170JPEG2026527478000057.jpg18170Here, For JPEG2026527478000058.jpg33170 and JPEG2026527478000059.jpg45170, The file JPEG2026527478000060.jpg25170 is obtained. For JPEG2026527478000061.jpg13170JPEG2026527478000062.jpg22170JPEG2026527478000063.jpg45170JPEG2026527478000064.jpg16170, The file JPEG2026527478000065.jpg14170 is obtained. JPEG2026527478000066.jpg6170JPEG2026527478000067.jpg22170Therefore, D1=(D 1,1 , D 2,1 The resultant force of the component forces is as follows: JPEG2026527478000068.jpg36170

[0122] 2) F j Calculation of (j=2), magnetic domain pair D j =(D 1,j , D 2,j ), corresponds to j=2 Magnetic domain pair D2 = (D 1,2 , D 2,2 The resultant force F2 = -F of the component forces corresponding to ) 1,2 +F 2,2 This is the result. The above magnetic domain D1,2 and magnetic domain D 1,2 The electromagnetic attractive force is calculated as follows: JPEG2026527478000069.jpg37170 Here, S D1,2 S D2,2 These are magnetic domain D, respectively. 1,2 and D 2,2 The area of ​​the annular end face corresponding to S D1,2 =S D2,2 =S D Therefore, the following is obtained. JPEG2026527478000070.jpg38170 This results in the following: The following will be obtained: JPEG2026527478000071.jpg24170. The resultant force acting on the movable assembly is as follows: JPEG2026527478000072.jpg17170 JPEG2026527478000073.jpg14170 Therefore, the following is obtained. JPEG2026527478000074.jpg25170

[0123] From the above derivation process, the following characteristics were identified. JPEG2026527478000075.jpg37170

[0124] The design method described above is called the design method for nonlinear term-canceling movable magnet oscillators. This method can be applied not only to oscillator design but also to brake design. A movable magnet oscillator or brake obtained by the above method is also called a nonlinear term-canceling movable magnet oscillator device or brake.

[0125] Example 7 Referring to Figures 16-20, the design method for a nonlinear term-canceling movable magnet oscillator includes the following conditions: (1) A movable magnet vibrator body 11 is provided, the movable magnet vibrator body 11 includes an outer cylinder 1, a vibration transmission sheet 9, a stator assembly, and a movable member assembly, the stator assembly includes a coil combination structure, the movable member assembly includes a magnet combination structure, the coil combination structure includes a coil 3 and a first permeable body 4, the magnet combination structure includes a permanent magnet 6 and a second permeable body 5, the stator assembly is fixed inside the outer cylinder 1, the vibration transmission sheet 9 is fixed to the outer cylinder 1, the movable member assembly and the vibration transmission sheet 9 are fixedly connected via at least one point, of which the movable member assembly moves while the stator assembly remains stationary, and the movable member assembly is called the movable member. (2) The movable assembly exhibits a push-pull structural characteristic when subjected to electromagnetic forces from a pair of compressive and tensile forces.

[0126] Inside the movable magnet oscillator body 11 are 2N magnetic domains D designed in pairs. 1,i and D 2,i A set of variables is provided, where N is 1, 2, 3, ..., 100, and i = 1, 2, 3, ... The number of permanent magnets in a magnet combination structure and the number of coils in a coil combination structure are limited, and the number of permanent magnets is set to N 磁石 , the number of coils is N コイル Therefore, N 磁石 >N コイル or N 磁石 <N コイル Nishi, N 磁石 The values ​​are 1, 2, 3, ..., 100, and N コイル The values ​​are 1, 2, 3, ..., 100.

[0127] In the push-pull structural features, the linear terms of the electromagnetic force acting on the movable assembly increase due to superposition, while the nonlinear terms of the electromagnetic force acting on the movable assembly decrease due to partial or complete cancellation.

[0128] The closed curve of the main magnetic field lines of the coil in a coil combination structure and the closed curve of the main magnetic field lines of the permanent magnet in a magnet combination structure are, in each case, magnetic domain D. 1,i and D 2,i A magnetic domain is a spatial region filled with electromagnetic energy, and is generally composed of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes the region where the magnetic material is placed, and furthermore, magnetic domain D 1,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while the magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, or magnetic domain D 1,i However, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D 2,i Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

[0129] The number of permanent magnets (6) and coils (3) is limited; the number of permanent magnets is 2, and the number of coils is 3. Inside the movable magnet oscillator body 11 are six magnetic domains D designed to be symmetrical in pairs. 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 A section is provided, and here, magnetic domain D 1,1 and D 2,1 It is symmetric, and magnetic domain D 1,2 and D 2,2 It is symmetric, and D 1,3 and D 2,3 The two are symmetrical, and the closed curve of the main magnetic field lines of coil 3 and the closed curve of the main magnetic field lines of permanent magnet 6 are, respectively, magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , and D 2,3 It passes through magnetic domain D. 1,1 In contrast, the magnetic field lines direction of the coil 3 and the magnetic field lines direction of the permanent magnet 6 are opposite, while the magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of coil 3 and the direction of the magnetic field lines of permanent magnet 6 are the same, and furthermore, magnetic domain D1,2 Therefore, the magnetic field line direction of the coil 3 and the magnetic field line direction of the permanent magnet 6 are the same, while the magnetic domain D 2,2 Therefore, the direction of the magnetic field lines of coil 3 and the direction of the magnetic field lines of permanent magnet 6 are opposite. Six forces act on the moving member, and each component force includes two parts: a linear term of the excitation current i and a nonlinear term of the excitation current i. JPEG2026527478000076.jpg7170 Here, n = 1, 2, 3, ..., 2N-1, 2N, In this case, the resultant force acting on the moving member also includes two parts: a linear term of current i and a nonlinear term of current i. JPEG2026527478000077.jpg6170 Here, JPEG2026527478000078.jpg51170JPEG2026527478000079.jpg33170

[0130] JPEG2026527478000080.jpg21170

[0131] The movable assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, and the closed curves of the main magnetic field lines of the coil 3 and the closed curves of the main magnetic field lines of the permanent magnet 6 alternately pass through the movable assembly and the stator assembly, respectively. The following conditions are also included: (3.1) When viewed from the center outward, the coil 3 is on the outside and the permanent magnet is on the inside. (3.2)N コイル =3, N 磁石 = 2, (3.3)N 磁石 If >1, the polarity of the two opposite end faces of the adjacent permanent magnet 6 is the same, N コイル If >1, the direction of the current in adjacent coils 3 is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils 3 is the same.

[0132] A permeable material is used in the part of the outer cylinder 1 closest to the coil 3 to minimize the magnetic resistance of the magnetic path of the electromagnet constituting the coil 3. A yoke is used around the coil 3 and the permanent magnet 6, or in the case of a coil combination structure, a permeable outer cylinder is used in the part of the outer cylinder 1 closest to the coil.

[0133] Example 8 Referring to Figures 16-20, the nonlinear term-canceling movable magnet oscillator device designed by the method of Embodiment 7 includes a movable magnet oscillator body 11, the movable magnet oscillator body 11 includes an outer cylinder 1, a vibration transmission sheet 9, a stator assembly, and a movable element assembly, the stator assembly includes a coil combination structure, the movable element assembly includes a magnet combination structure, the coil combination structure includes a coil 3 and a first permeator 4, the magnet combination structure includes a permanent magnet 6 and a second permeator 8, and the coil combination structure further includes a first permeator ring 2. Viewed from the center outward, the coil 3 is on the outside, the permanent magnet 6 is on the inside, there are two permanent magnets 6, and the polarity of the two opposite end faces of adjacent permanent magnets 6 is the same. There are three coils 3, the direction of the current in adjacent coils 3 is opposite, and two adjacent coils 3 have the same polarity of the electromagnetic field on two adjacent end faces. Two vibration conduction sheets 9 are installed, and the two vibration conduction sheets 9 are fixed to the top and bottom surfaces of the outer cylinder 1, respectively. The two permanent magnets 6 are fixed to both sides of the second permeable body 8, and the two permanent magnets 6 are fixed to the permeable bushings 5, each of which is fixed to the two vibration conduction sheets 9. The three coils 3 are sequentially fixed to the inner wall of the outer cylinder 1. The first permeable body 4 is fixed between adjacent coils 3, and the first permeable ring 2 is fixed to the outside of the coils 3. Both the first permeable body 4 and the first permeable ring 2 are fixed to the inner wall of the outer cylinder 1. The movable assembly and the stator assembly have a shape in which recesses and protrusions are arranged to interlock alternately. The closed curves of the main magnetic field lines of the coils 3 and the closed curves of the main magnetic field lines of the permanent magnets 6 alternately pass through the movable assembly and the stator assembly, respectively. Inside the movable magnet oscillator body 11 are six magnetic domains D designed to be symmetrical in pairs. 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 A section is provided, and here, magnetic domain D 1,1 and D 2,1 It is symmetric, and magnetic domain D1,2 and D 2,2 It is symmetric, and D 1,3 and D 2,3 The two are symmetrical. The closed curve of the main magnetic field lines of coil 3 and the closed curve of the main magnetic field lines of permanent magnet 6 are, respectively, magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , and D 2,3 It passes through magnetic domain D. 1,1 In contrast, the magnetic field lines direction of the coil 3 and the magnetic field lines direction of the permanent magnet 6 are opposite, while the magnetic domain D 2,1 Therefore, the direction of the magnetic field lines of coil 3 and the direction of the magnetic field lines of permanent magnet 6 are the same, and furthermore, magnetic domain D 1,2 Therefore, the magnetic field line direction of the coil 3 and the magnetic field line direction of the permanent magnet 6 are the same, while the magnetic domain D 2,2 Therefore, the direction of the magnetic field lines of coil 3 and the direction of the magnetic field lines of permanent magnet 6 are opposite.

[0134] Referring to Figure 17, Figure 17 shows six magnetic field regions D, each composed of an air gap. 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 Within the magnetic field region, the magnetic field generated by the permanent magnet and the magnetic field generated by the coil electromagnet superimpose on each other, resulting in a total magnetic flux / magnetic induction strength that generates interaction forces in the components surrounding the magnetic domain. Magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 Since these magnetic domains are all enclosed by stator and movable assemblies, interaction forces occur between the stator and movable assemblies within these domains.

[0135] Referring to Figure 18, the closed field curves for coils C1, C2, and C3, and the closed field curves for magnets M1 and M2 are shown. The closed field lines generated by coil C1 are in the magnetic gap D 1,2 , D1,3 The closed magnetic field lines generated by coil C2 pass through the magnetic gap D 1,1 , D 2,1 The closed magnetic field lines generated by coil C3 pass through the magnetic gap D 2,2 , D 2,3 It passes through. The closed magnetic field lines generated by magnet M1 pass through the magnetic gap D 1,1 , D 1,2 The closed magnetic field lines generated by magnet M2 pass through sequentially, and the magnetic gap D 2,1 , D 2,2 They pass through them in order.

[0136] Assume that the currents flowing through coils C1, C2, and C3 are i1, i2, and i3, respectively, and that i1=i2=i3=i. The magnetic flux corresponding to each coil is Φ i1 , Φ i2 , and Φ i3 And it is easy to derive. Φ i1 =Φ i2 =Φ i3 =Φ i (In another case, the number of turns N1, N2, and N3 of the coils C1, C2, and C3 are such that N1=N3≠N2. Alternatively, due to the magnetic path structure of C1, C2, and C3, the magnetoresistance of C2 is different from that of C1 and C3, so Φ i1 =Φ i3 ≠Φ i2 This is the result. In this case, since the design is symmetrical overall, the conclusion that the nonlinear terms in the resultant force of the paired forces cancel each other out still holds. The magnetic fluxes corresponding to permanent magnets M1 and M2 are Φ, respectively. M1 =Φ M2 =Φ m That is the case.

[0137] Magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 These can be divided into pairs depending on the symmetrical situation. D 1,1 , D 2,1 These are the first pair of magnetic domains arranged symmetrically, and D 1,2 , D2,2 These are the second pair of magnetic domains arranged symmetrically, D 1,3 , D 2,3 These are the third pair of magnetic domains, arranged symmetrically. 1) Magnetic domain pair D j =(D 1,j , D 2,j ), j=1 Magnetic domain D 1,1 Therefore, since the direction of the magnetic field lines corresponding to coil C2 and the direction of the magnetic field lines corresponding to permanent magnet M1 are opposite, magnetic domain D 1,1 So, the total magnetic flux is Φ i1 and Φ M1 =Φ m This is the difference. (In magnetic domain D) 2,1 Therefore, since the direction of the magnetic field lines corresponding to coil C2 and the direction of the magnetic field lines corresponding to permanent magnet M2 are the same, magnetic domain D 2,1 So, the total magnetic flux is Φ i2 and Φ M2 =Φ m It is the sum of the two.

[0138] i1=i2=i3=i, Φ i1 =Φ i3 ≠Φ i2 Assuming that the direction of the magnetic field lines of the permanent magnet is positive in each magnetic domain, and that the magnetic flux is also positive, the following is obtained. ΦD 1,1 =Φ M1 -Φ i2 =Φ m -Φ i2 ΦD 2,1 =Φ M2 +Φ i2 =Φ m +Φ i2 2) Magnetic domain pair D j =(D 1,j , D 2,j ), j=2

[0139] Magnetic domain D 1,2 Therefore, since the direction of the magnetic field lines corresponding to coil C1 and the direction of the magnetic field lines corresponding to permanent magnet M1 are the same, magnetic domain D 1,2 So, the total magnetic flux is Φ i1 =Φ i3 and Φ M1 =Φm This is the sum of the two. Magnetic domain D 2,2 Therefore, since the magnetic field line direction corresponding to coil C3 and the magnetic field line direction corresponding to permanent magnet M2 are opposite, magnetic domain D 2,2 So, the total magnetic flux is Φ i3 =Φ i1 and Φ M2 =Φ m This is the difference.

[0140] i1=i2=i3=i, Φ i1 =Φ i3 ≠Φ i2 Assuming that the direction of the magnetic field lines of the permanent magnet is positive in each magnetic domain, and that the magnetic flux is also positive, the following is obtained. ΦD 1,2 =Φ M1 +Φ i1 =Φ m +Φ i1 ΦD 2,2 =Φ M1 -Φ i3 =Φ m -Φ i1 3) Magnetic domain pair D j =(D 1,j , D 2,j ), j=3 Magnetic domain D 1,3 Therefore, since only the magnetic field lines corresponding to coil C1 pass through, the total magnetic flux is Φ i1 That is all. Magnetic domain D 2,3 Therefore, since only the magnetic field lines corresponding to coil C3 pass through, the total magnetic flux is Φ i3 =Φ i1 That is all.

[0141] The magnetic resistance of the magnetic path due to the electromagnetic field generated by the current i in the above coils C1, C2, and C3 is Z. i Assuming N is the number of turns in coils C1, C2, and C3, and i is the current intensity, the following is obtained. JPEG2026527478000081.jpg7170 The permeance of the magnetic path due to the electromagnetic field generated by the electric current is G i Assuming this, we obtain the following: JPEG2026527478000082.jpg7170

[0142] In another case, the coil turns N1, N2, and N3 of C1, C2, and C3 are such that N1 = N3 ≠ N2. Alternatively, the magnetic resistance of C2 differs from that of C1 and C3 due to the magnetic path structure of C1, C2, and C3, i.e., G i,1 =G i,3 ≠G i,2 Therefore, Φ i1 =Φ i3 ≠Φ i2 This is the result. In this case, since the design is symmetrical overall, the conclusion that the nonlinear terms in the resultant force of the paired final forces cancel each other out still holds. In this case, the following is obtained. JPEG2026527478000083.jpg16170

[0143] JPEG2026527478000084.jpg16170 This yields the following: JPEG2026527478000085.jpg50170

[0144] In another case, the coil turns N1, N2, and N3 of C1, C2, and C3 are such that N1 = N3 ≠ N2. Alternatively, the magnetic resistance of C2 differs from that of C1 and C3 due to the magnetic path structure of C1, C2, and C3, i.e., G i,1 =G i,3 ≠G i,2 Therefore, Φ i1 =Φ i3 ≠Φ i2 Therefore, the above equation becomes as follows: JPEG2026527478000086.jpg50170

[0145] From the above equation, N1 = N3, G i,1 =G i,3 In this case as well, the magnetic domain pair D2 = (D 1,2 , D 2,2 ), and magnetic domain pair D1=(D 1,1 , D 2,1 ), D3=(D 1,3 , D 2,3It was also found that magnetic flux has the property that the nonlinear term with respect to current among the corresponding component forces can be canceled out.

[0146] Referring to Figure 19, Figure 19 shows the movable part assembly, magnetic domain D 1,1 , D 2,1 , D 1,2 , D 2,2 , D 1,3 , D 2,3 This is a diagram showing the relationship between the magnetic domain D and the stator assembly. 1,1 Then, a leftward suction force F from the stator assembly is applied to the movable assembly. 1,1 It is applied to magnetic domain D 2,1 So, the movable assembly is subjected to a rightward suction force F from the stator assembly. 2,1 It is applied to magnetic domain D 1,2 So, the movable assembly is subjected to a rightward suction force F from the stator assembly. 1,2 It is applied to magnetic domain D 2,2 Then, a leftward suction force F from the stator assembly is applied to the movable assembly. 2,2 This applies to magnetic domain D. 1,3 Then, a leftward suction force F from the stator assembly is applied to the movable assembly. 1,3 It is applied to magnetic domain D 2,3 So, the movable assembly is subjected to a rightward suction force F from the stator assembly. 2,3 This applies to magnetic domain pair D. j =(D 1,j , D 2,j The resultant force corresponding to the magnetic domain pair D j The resultant force F corresponding to this resultant force F j =F 1,j +F 2,j It is defined as follows. Assuming that the rightward direction is positive, F 1,j and F 2,j If the direction is to the right, F 1,j and F 2,j The sign of F is positive. 1,j and F 2,j If the direction is to the left, F 1,j and F 2,j The sign is negative. The resultant force from the stator assembly acting on the movable assembly is as follows: F 可動磁石=F1+F2+F3=-F 1,1 +F 2,1 +F 1,2 -F 2,2 +-F 1,3 +F 2,3 F 可動磁石 =F1+F2+F3=(-F 1,1 +F 2,1 )+(F 1,2 -F 2,2 )+(-F 1,3 +F 2,3 )

[0147] The above F j Corresponding magnetic domain pair D j =(D 1,j , D 2,j In this case, the resultant force of the component forces is generated on the movable assembly.

[0148] The above is an analysis diagram of the forces separated from the movable assembly. The movable assembly receives the component force F from the stator assembly. 1,1 F 2,1 F 1,2 F 2,2 F 1,3 F 2,3 This is the cost. For the calculation, the magnetic domain pair D is used as follows: j =(D 1,j , D 2,j ) According to F j First, calculate the force of the movable element assembly, and then calculate the resultant force of the movable element assembly. JPEG2026527478000087.jpg14170

[0149] The above can also be expressed as the direction of the force being reflected in the sign of the force component. In this case, the following is obtained. JPEG2026527478000088.jpg17170

[0150] First, the resultant force of the component forces generated in a pair of magnetic domains, that is, the magnetic domain pair D1 = (D 1,1 , D 2,1 ) The resultant force F1 = -F 1,1 +F 2,1 , magnetic domain pair D2=(D1,2 , D 2,2 ) The resultant force F1 = F 1,2 -F 2,2 , magnetic domain pair D3 = (D 1,3 , D 2,3 ) The resultant force F3 = -F 1,3 +F 2,3 First, calculate each of these values, and then calculate the overall strength.

[0151] First, we derive the equation for the electromagnetic force generated in each magnetic domain. The magnitude of the electromagnetic attractive force acting on a magnetized ferromagnetic object is proportional to the total area of ​​the magnetic poles through which the magnetic field lines pass and the square of the magnetic induction strength. When the magnetic induction strength B is uniformly distributed along the surface of the magnetic poles and the calculated air gap length is relatively small, the equation for calculating the electromagnetic attractive force is Maxwell's formula, which can be expressed as follows. JPEG2026527478000089.jpg16170JPEG2026527478000090.jpg29170C: Correlation coefficient between the type and shape of the combination of magnetic pole end faces. Its value differs depending on the scenario. In the case of the force acting between permanent magnets, C m2m The value is usually 1. An accurate value can be obtained through actual measurement during the design phase. In the case of the force between a permanent magnet and a permeable magnet (yoke), C m2y The value is usually 1 / 2. The accurate value can be obtained through actual measurement during the design phase. In the case of the force acting between two permeable magnets (yokes), C y2y The value is usually 1 / 4 of that. A more accurate value can be obtained through actual measurement during the design phase.

[0152] 1) Magnetic domain pair D j =(D 1,j , D 2,j ) 、 If j=1, then D1=(D 1, , D 2,1 ) is the resultant force F1 = -F 1,1 +F 2,1 It corresponds to. The above formula is applied to the above magnetic domain D 1,1 and magnetic domain D 2,1When used to calculate the electromagnetic attractive force in [location], the following is obtained. JPEG2026527478000091.jpg40170

[0153] Here, S D1,1 S D2,1 These are magnetic domain D, respectively. 1,1 and D 2,1 The area of ​​the annular end face corresponding to S D1,1 =S D2,1 =S D1 Therefore, the following is obtained. JPEG2026527478000092.jpg36170JPEG2026527478000093.jpg19170Here, For JPEG2026527478000094.jpg77170, The file JPEG2026527478000095.jpg24170 is obtained. For JPEG2026527478000096.jpg13170 and JPEG2026527478000097.jpg85170, The file JPEG2026527478000098.jpg18170 is obtained. JPEG2026527478000099.jpg29170 This allows for magnetic domain pair D 1,1 and D 2,1 The corresponding resultant force is as follows: JPEG2026527478000100.jpg36170

[0154] 2) Magnetic domain pair D j =(D 1,j , D 2,j ) 、 If j=2, then D2=(D 1,2 , D 2,2 ) is the resultant force F2 = F 1,2 -F 2,2 It corresponds to.

[0155] The above formula is applied to the above magnetic domain D 1,2 and magnetic domain D 2,2 When used to calculate the electromagnetic attractive force in [location], the following is obtained. JPEG2026527478000101.jpg40170 Here, S D1,2 S D2,2 These are magnetic domain D, respectively. 1,2 and D 2,2 The area of ​​the annular end face corresponding to S D1,2 =S D2,2 =S D2 Therefore, the following is obtained. JPEG2026527478000102.jpg58170 Here, For JPEG2026527478000103.jpg77170, The following can be obtained. For JPEG2026527478000104.jpg24170JPEG2026527478000105.jpg13170JPEG2026527478000106.jpg85170, The following can be obtained. JPEG2026527478000107.jpg18170JPEG2026527478000108.jpg29170 This allows for magnetic domain pair D 1,1 and D 2,1 The corresponding resultant force is as follows: JPEG2026527478000109.jpg36170

[0156] 3) Magnetic domain pair (D 1,j , D 2,j ) 、 If j=3, then D3=(D 1,3 , D 2,3 ) is the resultant force F3 = -F 1,3 +F 2,3 It corresponds to.

[0157] The above magnetic domain D 1,3 and magnetic domain D 1,3 The electromagnetic attractive force in this case is calculated as follows: JPEG2026527478000110.jpg39170 Here, S D1,3 S D2,3 These are magnetic domain D, respectively. 1,3 and D 2,3The area of ​​the annular end face corresponding to S D1,3 =S D2,3 =S D3 Therefore, the following is obtained. JPEG2026527478000111.jpg37170 This yields the following: The following will be obtained: JPEG2026527478000112.jpg35170. (JPEG2026527478000113.jpg181704) The resultant force acting on the movable assembly is calculated as follows. JPEG2026527478000114.jpg14170 Therefore, the following is obtained. JPEG2026527478000115.jpg41170

[0158] From the above derivation process, the following characteristics were identified. JPEG2026527478000116.jpg39170

[0159] The design method described above is called the design method for nonlinear term-canceling movable magnet oscillators. This method can be applied not only to oscillator design but also to brake design. A movable magnet oscillator or brake obtained by the above method is also called a nonlinear term-canceling movable magnet oscillator device or brake.

[0160] Example 9 In the nonlinear term-canceling movable magnet oscillators of Examples 1 to 8, the permanent magnets or magnets described may be replaced with magnetic members, and the coils with coil members, but in this case as well, they still fall within the scope of protection of this patent.

[0161] Magnetic component: Single magnet or multiple magnets (n 磁石>1) The overall magnetic field generated by the combination of components is equivalent to that of a specific single magnet. The magnetic field generated by the magnets of the combination of components is the same direction as a dominant magnetic field (even if the magnetic field strengths of the multiple magnets that make up the components differ greatly, the magnetic field directions of these magnets may be opposite to each other, but the overall magnetic field direction is the same as that of the dominant magnetic field), and the overall magnetic field generated by this can be considered as being generated by a single magnetic component. Typically, magnets are connected to each other by rigid or flexible structural members (between magnets, or at the edges of magnets, or around magnets), or without structural members, by adhesive, welding, embedding, screws, bolts, rivets, pins, buckles, clamping claws, brackets, sleeves, glands, or other methods.

[0162] Coil member: Single coil or multiple coils (n コイル >1) The overall magnetic field generated by the combination of components is equivalent to the magnetic field generated by a specific single coil, and the magnetic field generated by the coils of the combination of components is in the same direction as the magnetic field generated by a dominant coil (if the magnetic field strengths generated by multiple coils that are components differ significantly, the direction of the magnetic fields generated by these coils may also be opposite, but the overall magnetic field direction is the same as the direction of the magnetic field generated by the dominant coil), and the resulting overall magnetic field can be considered as being generated by the current in a single coil component. Typically, coils are connected to each other by rigid or flexible structural members (between coils, or at the edges of coils, or around coils), or without structural members, by adhesive, welding, embedding, screws, bolts, rivets, pins, buckles, clamping claws, brackets, sleeves, glands, or other methods.

[0163] To describe the magnetic and coil members in detail, the following embodiments will be specifically explained.

[0164] The following embodiments are included in the use of the magnetic member 201. Example 1 of magnetic member 201: As shown in Figure 24, the permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Permanent magnets 1 and 2 are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the direction of the magnetic fields generated by permanent magnets 1 and 2 is the same, as both are oriented toward the Y+ axis. Therefore, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0165] Example 2 of the magnetic member 201: As shown in Figure 25, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 3. Permanent magnets 1, 2, and 3 are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the magnetic field directions generated by permanent magnets 1, 2, and 3 are all oriented toward the Y+ axis, and therefore are in the same direction. Thus, the combination of permanent magnets 1, 2, and 3 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1, 2, and 3 can be considered as a single magnetic component 201.

[0166] Example 3 of the magnetic member 201: As shown in Figure 26, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 A permeable material is interposed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the permeable material, and permanent magnet 2 and the permeable material are connected by adhesion, welding, rivets, pins, clamping claws, brackets, sleeves, or other methods. The magnetic field directions generated by permanent magnet 1 and permanent magnet 2 are the same, as both are oriented in the Y-axis+ direction. Therefore, the combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered as a single magnetic member 201.

[0167] The permeable materials described above can also be replaced with non-permeable materials or magnets with a much lower magnetic field strength and a reverse direction. Since this does not affect the overall system and can be considered a single permanent magnet, this case also falls under this category.

[0168] Example 4 of the magnetic member 201: As shown in Figure 27, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Of the permanent magnets 1 and 2, permanent magnet 1 is larger and permanent magnet 2 is smaller. They are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means. The magnetic fields generated by permanent magnets 1 and 2 are both oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0169] Example 5 of the magnetic member 201: As shown in Figure 28, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 Of the permanent magnets 1 and 2, permanent magnet 1 is larger and permanent magnet 2 is smaller. They are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means. The magnetic fields generated by permanent magnets 1 and 2 are both oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0170] Example 6 of the magnetic member 201: As shown in Figure 29, permanent magnets are connected in series in the direction of the magnetic field, with no structural components between them, n 磁石 = 2 Permanent magnets 1 and 2 are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the direction of the magnetic fields generated by permanent magnets 1 and 2 is the same, as both are oriented toward the Y+ axis. Therefore, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0171] Example 7 of the magnetic member 201: As shown in Figure 30, the permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 3. Permanent magnets 1, 2, and 3 are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the magnetic field directions generated by permanent magnets 1, 2, and 3 are all oriented toward the Y+ axis, and therefore are in the same direction. Thus, the combination of permanent magnets 1, 2, and 3 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1, 2, and 3 can be considered as a single magnetic component 201.

[0172] Example 8 of the magnetic member 201: As shown in Figure 31, permanent magnets are connected in series and parallel in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 3. Permanent magnets 1, 2, and 3, as well as permeable plates 1 and 2, are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means. Since the magnetic field directions generated by permanent magnets 1, 2, and 3 are all oriented towards the Y+ axis, the magnetic field directions after magnetization of permeable plates 1 and 2 are also oriented towards the Y+ axis, thus all being in the same direction. Therefore, the combination of permanent magnets 1, 2, and 3, as well as permeable plates 1 and 2, can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1, 2, and 3, as well as permeable plates 1 and 2, can be considered as a single magnetic component 201.

[0173] The permeable plates described above can also be replaced with non-permeable plates or magnets with a much weaker magnetic field and a reverse direction. This does not affect the overall system and can be considered a single permanent magnet, so this also falls under this type.

[0174] Example 9 of the magnetic member 201: As shown in Figure 32, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 A permeable material is interposed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the permeable material, and permanent magnet 2 and the permeable material are connected by adhesion, welding, rivets, pins, clamping claws, brackets, sleeves, or other methods. The magnetic field directions generated by permanent magnet 1 and permanent magnet 2 are the same, as both are oriented in the Y-axis+ direction. Therefore, the combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered as a single magnetic member 201.

[0175] The permeable plates described above can also be replaced with non-permeable plates or magnets with a much weaker magnetic field and a reverse direction. This does not affect the overall system and can be considered a single permanent magnet, so this also falls under this type.

[0176] Example 10 of the magnetic member 201: As shown in Figure 33, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Permanent magnets 1 and 2 are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the direction of the magnetic fields generated by permanent magnets 1 and 2 is the same, as both are oriented toward the Y+ axis. Therefore, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0177] Example 11 of the magnetic member 201: As shown in Figure 34, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 A permeable material is interposed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the permeable material, and permanent magnet 2 and the permeable material are connected by adhesion, welding, rivets, pins, clamping claws, brackets, sleeves, or other methods. The magnetic field directions generated by permanent magnet 1 and permanent magnet 2 are the same, as both are oriented in the Y-axis+ direction. Therefore, the combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1, permeable material, and permanent magnet 2 can be considered as a single magnetic member 201.

[0178] The permeable plates described above can also be replaced with non-permeable materials or magnets with much lower magnetic field strength and opposite direction. This does not affect the overall system and can be considered a single permanent magnet, so this also falls under this type.

[0179] Example 12 of the magnetic member 201: As shown in Figure 35, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (cylinder, cylindrical, prismatic, rectangular tube, etc.) are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the direction of the magnetic field generated by permanent magnet 1 and permanent magnet 2 is the same, as both are oriented toward the Y+ axis. Therefore, the combination of permanent magnet 1 and permanent magnet 2 can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnetic component 201.

[0180] Example 13 of the magnetic member 201: As shown in Figure 36, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 A permeable ring 104 is interposed between permanent magnet 1 (annular, circular, square, rectangular, etc.) and permanent magnet 2 (cylindrical, cylindrical, prismatic, rectangular tube, etc.). Permanent magnet 1 and the permeable ring, and permanent magnet 2 and the permeable ring are connected by adhesion, welding, rivets, pins, clamping claws, brackets, sleeves, or other methods. The magnetic field directions generated by permanent magnet 1 and permanent magnet 2 are the same, as both are oriented in the Y-axis+ direction. Therefore, the combination of permanent magnet 1, permeable ring, and permanent magnet 2 can be considered approximately equivalent to a single magnet on the right side (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1, permeable ring, and permanent magnet 2 can be considered as a single magnetic component 201.

[0181] The permeable rings described above can also be replaced with non-permeable rings, or reverse-direction magnetic rings with much lower magnetic field strength. Since this does not affect the overall system and can be considered a single permanent magnet, this also falls under this category.

[0182] Example 14 of the magnetic member 201: As shown in Figure 37, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (ring, cylindrical, prism, rectangular tube, etc.) are connected by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means, and the direction of the magnetic field generated by permanent magnets 1 and 2 is the same, as both are oriented toward the Y+ axis. Therefore, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201. The core material in the figure may be air, an impermeable or weakly permeable material, such as a weakly permeable pin.

[0183] Example 15 of the magnetic member 201: As shown in Figure 38, permanent magnets are connected in series in the direction of the magnetic field, with structural components between them, n 磁石 = 2 A permeable ring 104 is interposed between permanent magnet 1 (annular, circular, square, rectangular, etc.) and permanent magnet 2 (cylindrical, cylindrical, prismatic, rectangular tube, etc.). Permanent magnet 1 and the permeable ring, and permanent magnet 2 and the permeable ring are connected by adhesion, welding, rivets, pins, clamping claws, brackets, sleeves, or other methods. The magnetic field directions generated by permanent magnet 1 and permanent magnet 2 are the same, as both are oriented in the Y-axis+ direction. Therefore, the combination of permanent magnet 1, permeable ring, and permanent magnet 2 can be considered approximately equivalent to a single magnet on the right side (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The combination of permanent magnet 1, permeable ring, and permanent magnet 2 can be considered as a single magnetic component 201.

[0184] The permeable connecting ring described above can also be replaced with a non-permeable ring, or a reverse-direction magnetic ring with a much lower magnetic field strength. This also falls under this type, as it does not affect the overall system and can be considered a single permanent magnet.

[0185] Example 16 of the magnetic member 201: As shown in Figure 39, permanent magnets are connected in series and parallel in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 5 Permanent magnets 1, 2, and 3 are connected in parallel by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means to form an equivalent magnet (magnet 1|magnet 2|magnet 3). This equivalent magnet (magnet 1|magnet 2|magnet 3) is further connected in series to permanent magnets 4 and 5 to form an equivalent magnet (magnet 4-(magnet 1|magnet 2|magnet 3)-magnet 5). The magnetic fields generated by the equivalent magnet (magnet 1|magnet 2|magnet 3), permanent magnets 4, and permanent magnets 5 are all oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the magnet combination (magnet 4-(magnet 1|magnet 2|magnet 3)-magnet 5) can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the figure) when viewed from the direction of the overall external magnetic field. The magnet combination (magnet 4-(magnet 1|magnet 2|magnet 3)-magnet 5) can be considered as a single magnetic member 201.

[0186] Example 17 of the magnetic member 201: As shown in Figure 40, permanent magnets are connected in series and parallel in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 5 Permanent magnets 1, 2, and 3 are connected in series by adhesive, welding, rivets, pins, clamping claws, brackets, sleeves, or other means to form an equivalent magnet (magnet 1-magnet 2-magnet 3). This equivalent magnet (magnet 1-magnet 2-magnet 3) is further connected in parallel to permanent magnets 4 and 5 to form an equivalent magnet (magnet 4|(magnet 1-magnet 2-magnet 3)|magnet 5). The magnetic fields generated by the equivalent magnet (magnet 1-magnet 2-magnet 3), permanent magnets 4, and permanent magnets 5 are all oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the magnet combination (magnet 4|(magnet 1-magnet 2-magnet 3)|magnet 5) can be considered to be approximately equivalent to a single magnet on the right side (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The magnet combination (magnet 4|(magnet 1-magnet 2-magnet 3)|magnet 5) can be considered as a single magnetic member 201.

[0187] Example 18 of the magnetic member 201: As shown in Figure 40a, permanent magnets are connected in series in the direction of the magnetic field, and there are no structural components between them, n 磁石 = 2 Of the permanent magnets 1 and 2, permanent magnet 1 is larger and permanent magnet 2 is smaller. They are connected by adhesive, welding, embedding, screws, threading, rivets, pins, buckles, clamping claws, brackets, sleeves, glands, or other means. The magnetic field direction of permanent magnet 1 is oriented towards the Y+ axis, and the magnetic field direction of permanent magnet 2 is oriented towards the Y- axis. Because the magnetic field strength of permanent magnet 2 is much lower than that of permanent magnet 1, the combination of permanent magnets 1 and 2 can be considered to be approximately equivalent to a single magnet on the right (represented by the sign "=" in the diagram) when viewed from the direction of the overall external magnetic field. The combination of permanent magnets 1 and 2 can be considered as a single magnetic component 201.

[0188] The following embodiments are included in the use of the coil member 102. Example 1 of coil member 102: As shown in Figure 41, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 2 Coil 1 and coil 2 are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means. The magnetic field directions generated by coil 1 and coil 2 are the same, as both are oriented towards the Y+ axis. Therefore, the combination of coil 1 and coil 2 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed externally in terms of the direction of the overall magnetic field it generates. The combination of coil 1 and coil 2 can be considered as a single coil member 102.

[0189] In the above embodiment, whether or not there is an iron core in the center of the coil does not affect the direction of the magnetic field generated by the coil current, and therefore does not affect the conclusion that the two coils are connected in series to form a single coil member 102.

[0190] JPEG2026527478000117.jpg16170

[0191] Example 2 of coil member 102: As shown in Figure 42, the coils are connected in series in the direction of the magnetic field, and a sleeve is provided around them, n コイル = 2 Coil 1 and coil 2 are connected by a sleeve (preferably made of a permeable material, but may be made of a weakly permeable material, non-permeable material, etc.). The magnetic fields generated by coil 1 and coil 2 are both oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the combination of coil 1 and coil 2 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the figure) when viewed from the outside in terms of the direction of the overall magnetic field generated by it. The combination of coil 1 and coil 2 can be considered as a single coil member 102.

[0192] Example 3 of coil member 102: As shown in Figure 43, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 3. Coils 1, 2, and 3 are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means. The magnetic fields generated by coils 1, 2, and 3 are all oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the combination of coils 1, 2, and 3 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed externally in terms of the direction of the overall magnetic field it generates. The combination of coils 1, 2, and 3 can be considered as a single coil member 102.

[0193] Example 4 of coil member 102: As shown in Figure 44, the coils are connected in series in the direction of the magnetic field, and structural components are located between them, n コイル = 2 A permeable material is interposed between coil 1 and coil 2. Coil 1 and the permeable ring 104, and coil 2 and the permeable ring 104 are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coil 1 and coil 2 are all oriented in the Y-axis+ direction and are therefore the same. Thus, the combination of coil 1, permeable ring 104, and coil 2 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed from the outside in terms of the direction of the overall magnetic field it generates. The combination of coil 1, permeable ring 104, and coil 2 can be considered as a single coil member 102.

[0194] The permeable ring described above can also be replaced with a non-permeable ring, or a reverse coil with a much lower induced magnetic field strength. This also falls under this type, as it does not affect the overall design and can be considered as a single coil.

[0195] Example 5 of coil member 102: As shown in Figure 45, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 2 Of coils 1 and 2, coil 1 is larger and coil 2 is smaller. They are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coils 1 and 2 are the same, as both are oriented towards the Y+ axis. Therefore, the combination of coils 1 and 2 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed externally in terms of the direction of the overall magnetic field it generates. The combination of coils 1 and 2 can be considered as a single coil member 102.

[0196] Example 6 of coil member 102: As shown in Figure 46, the coils are connected in series in the direction of the magnetic field, and structural components are located between them, n コイル = 2 Of coils 1 and 2, coil 1 is larger and coil 2 is smaller. They are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coils 1 and 2 are the same, as both are oriented towards the Y+ axis. Therefore, the combination of coils 1 and 2 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed externally in terms of the direction of the overall magnetic field it generates. The combination of coils 1 and 2 can be considered as a single coil member 102.

[0197] The permeable ring described above can also be replaced with a non-permeable ring, or a reverse coil with a much lower induced magnetic field strength. This also falls under this type, as it does not affect the overall design and can be considered as a single coil.

[0198] Example 7 of coil member 102: As shown in Figure 47, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 2 Coil 1 (outer coil) and coil 2 (inner coil) are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coils 1 and 2 are the same, as both are oriented towards the Y+ axis. Therefore, the combination of coils 1 and 2 can be considered approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed from the outside in terms of the direction of the overall magnetic field it generates. The combination of coils 1 and 2 can be considered as a single coil member 102.

[0199] Example 8 of coil member 102: As shown in Figure 48, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 2 Coil 1 (outer coil), coil 2 (inner coil), and the iron core are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coils 1 and 2 are the same, as both are oriented towards the Y+ axis. Therefore, the combination of coil 1, coil 2, and the iron core can be considered approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed from the outside in terms of the direction of the overall magnetic field it generates. The combination of coil 1, coil 2, and the iron core can be considered as a single coil member 102.

[0200] Example 9 of coil member 102: As shown in Figure 49, the coils are connected in series in the direction of the magnetic field, and there are no structural components between them, n コイル = 3. Coils 1, 2, and 3 are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means. The magnetic fields generated by coils 1, 2, and 3 are all oriented toward the Y+ axis and therefore oriented in the same direction. Thus, the combination of coils 1, 2, and 3 can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed externally in terms of the direction of the overall magnetic field it generates. The combination of coils 1, 2, and 3 can be considered as a single coil member 102.

[0201] Example 10 of coil member 102: As shown in Figure 50, the coils are connected in parallel and series in the direction of the magnetic field, and there are no structural components between them, n コイル = 3. Coils 1, 2, and 3, and permeable plates 1 and 2, are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means. Since the magnetic field directions generated by coils 1, 2, and 3 are all oriented towards the Y+ axis, the magnetic field directions after magnetization of permeable plates 1 and 2 are also oriented towards the Y+ axis, and therefore all are in the same direction. Thus, the combination of coils 1, 2, and 3, and permeable plates 1 and 2, can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the diagram) when viewed from the outside in terms of the direction of the overall magnetic field they generate. The combination of coils 1, 2, and 3, and permeable plates 1 and 2, can be considered as a single coil member 102.

[0202] The permeable plates described above can also be replaced with non-permeable plates or reverse coils with much lower magnetic field strength. Since this does not affect the overall system and can be considered a single coil, this also falls under this category.

[0203] Example 11 of coil member 102: As shown in Figure 51, the coils are connected in series in the direction of the magnetic field, and structural components are located between them, n コイル = 2 An isolation ring (preferably made of a permeable material, but may be made of a weakly permeable or non-permeable material) is interposed between coil 1 and coil 2. Coil 1 and the isolation ring, and coil 2 and the isolation ring are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other methods. The magnetic field directions generated by coil 1 and coil 2 are all oriented in the Y-axis+ direction and are therefore the same. Thus, the combination of coil 1, the isolation ring, and coil 2 can be considered to be approximately equivalent to a single coil on the right side (represented by the sign "=" in the figure) when viewed from the outside in terms of the direction of the overall magnetic field generated by it. The combination of coil 1, the permeable material, and coil 2 can be considered as a single coil member 102.

[0204] Example 12 of coil member 102: As shown in Figure 52, the coils are connected in series and parallel in the direction of the magnetic field, and there are no structural components between them, n コイル = 4 Coil 1 and coil 2 are connected by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means to form an equivalent coil (coil 1|coil 2). This equivalent coil (coil 1|coil 2) is further connected in series with coils 3 and 4 to form an equivalent coil (coil 3-(coil 1|coil 2)-coil 4). The magnetic field directions generated by the equivalent coil (coil 1|coil 2), coil 3, and coil 4 are all oriented toward the Y+ axis and therefore are in the same direction. Thus, the coil combination (coil 3-(coil 1|coil 2)-coil 4) can be considered as approximately equivalent to a single coil on the right (represented by the sign "=" in the figure) when viewed from the outside in terms of the direction of the overall magnetic field it generates. The coil combination (coil 3-(coil 1|coil 2)-coil 4) can be considered as a single coil member 102.

[0205] Example 13 of coil member 102: As shown in Figure 53, the coils are connected in series and parallel in the direction of the magnetic field, and there are no structural components between them, n コイル = 4 Coils 1, 2, and 3 are connected in series by adhesive, brackets, sleeves, rivets, clamping claws, welding, or other means to form an equivalent coil (coil 1-coil 2-coil 3). This equivalent coil (coil 1-coil 2-coil 3) is further connected in parallel to coil 4 to form an equivalent coil ((coil 1-coil 2-coil 3)|coil 4). The magnetic field directions generated by each of the equivalent coils (coil 1-coil 2-coil 3) and coil 4 are the same, as both are directed toward the Y+ axis. Therefore, the coil combination ((coil 1-coil 2-coil 3)|coil 4) can be considered to be approximately equivalent to a single coil on the right (represented by the sign "=" in the figure) when viewed from the outside in terms of the direction of the overall magnetic field it generates. The coil combination ((coil 1-coil 2-coil 3)|coil 4) can be considered as a single coil member 102.

[0206] Example 10 Referring to Figures 1-53, the design methods for the nonlinear term-canceling movable magnet vibrators of Examples 1, 3, 5, and 7 allow the nonlinear term-canceling movable magnet vibrators obtained by the above design methods to be applied to bone conduction headphones, bone conduction glasses, wired headphones, wireless headphones, AR glasses, VR glasses, smartwatches, smart bracelets, head-mounted devices, wearable devices, smartphones, game controllers, gaming headsets, gaming steering wheels, gaming pedals, mice, keyboards, touchscreens, electrical control panels, touch devices, screen sound devices, in-vehicle haptic feedback devices, smart cockpits, gaming chairs, massage chairs, massagers, haptic feedback vests, haptic feedback gloves, haptic feedback belts, haptic feedback leg devices, auxiliary hearing aids, sleep aid devices, or haptic feedback network interconnect devices. When the above nonlinear term-canceling movable magnet vibrators are used in the above products, electrical energy can be converted into mechanical energy such as vibration or mechanical motion.

[0207] As described above, those skilled in the art can implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the invention. Accordingly, the present invention is not limited to these embodiments shown herein, but rather follows the broadest scope that is consistent with the principles and novelty disclosed herein.

Claims

1. A design method for a nonlinear term-canceling movable magnet oscillator, comprising the following conditions: (1) A movable magnet type transducer body is provided, the movable magnet type transducer body includes an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly, the stator assembly includes a coil combination structure, the movable element assembly includes a magnet combination structure, the stator assembly is fixed inside the outer cylinder, the vibration transmission sheet is fixed to the outer cylinder, the movable element assembly and the vibration transmission sheet are fixedly connected via at least one point, of which the movable element assembly moves while the stator assembly remains stationary, and the movable element assembly is called the movable member. (2) A design method for a nonlinear term-canceling movable magnet oscillator, characterized in that the movable element assembly simultaneously receives electromagnetic forces due to a pair of compressive and tensile forces, thereby exhibiting a push-pull structural characteristic.

2. The following conditions are also included: (3) Inside the movable magnet oscillator body, there are 2N magnetic domains D designed in pairs. １，ｉ and D ２，ｉ The design method for a nonlinear term-canceling movable magnet oscillator according to claim 1, characterized in that a is provided, N is 1, 2, 3, ..., 100, and i = 1, 2, 3...

3. Limit the number of permanent magnets in the magnet combination structure and the number of coils in the coil combination structure, and set the number of permanent magnets to N 磁石 and the number of coils to N コイル Then, if N 磁石 > N コイル or N 磁石 < N コイル is set, where N 磁石 is 1, 2, 3,..., 100, and N コイル is 1, 2, 3,..., 100. The design method of the non-linear term cancellation type movable magnet type vibrator according to claim 2, characterized by this.

4. The design method for a nonlinear term-canceling movable magnet oscillator according to claim 1, characterized in that, in the push-pull structural features, the linear terms of the electromagnetic force acting on the movable element assembly are superimposed on each other and increase, while the nonlinear terms of the electromagnetic force acting on the movable element assembly are partially or completely canceled out and decrease.

5. The closed curve of the main magnetic field lines of the coil in a coil combination structure and the closed curve of the main magnetic field lines of the permanent magnet in a magnet combination structure are, in each case, magnetic domain D. １，ｉ and D ２，ｉ A magnetic domain is a spatial region filled with electromagnetic energy, and is generally composed of air or a medium with relatively low permeability (e.g., relative permeability < 1000), and includes the region where the magnetic material is placed, and furthermore, magnetic domain D １，ｉ Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while magnetic domain D ２，ｉ Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite, or magnetic domain D １，ｉ In this case, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D ２，ｉ The design method for a nonlinear term-canceling movable magnet oscillator according to claim 1, characterized in that the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

6. The moving member is subjected to 2N forces, where N = 1, 2, 3, ..., 100, and each component force includes two parts: a linear term of the excitation current i and a nonlinear term of the excitation current i. Here, n = 1, 2, 3, ..., 2N-1, 2N, In this case, the resultant force acting on the moving member also includes two parts: a linear term of current i and a nonlinear term of current i. Here, In other words, the nonlinear terms of each component force are partially or completely canceled out, and in the final combined force Σi(F1,i + F2,i), the nonlinear terms of the combined force with respect to current are partially or completely canceled out, and the linear terms are superimposed on each other and increase, resulting in the aforementioned nonlinear term-canceling type movable magnet oscillator, as described in claim 5.

7. The method for designing a nonlinear term-canceling movable magnet oscillator according to claim 1, characterized in that the coil combination structure includes a coil and a first permeable body, and the magnet combination structure includes a permanent magnet and a second permeable body.

8. The aforementioned magnet combination structure includes a magnetic member and a second permeable body, wherein the magnetic member is a single magnet or a plurality of magnets (n 磁石 The design method for a nonlinear term-canceling movable magnet oscillator according to 1), characterized in that the combination member is such that the overall magnetic field generated is equivalent to that of a specific single magnet, the magnetic field generated by the magnets of the combination member is in the same direction as a dominant magnetic field (even if the magnetic field strengths of the multiple magnets that are components differ greatly, the magnetic field directions of these magnets may be opposite to each other, but the overall magnetic field direction is the same as that of the dominant magnetic field), the overall magnetic field generated thereby can be considered as being generated by a single magnet member, and the magnets are connected to each other by rigid structural members or flexible structural members (between magnets, or at the edges of magnets, or around magnets), or without structural members, by adhesive, welding, embedding, screws, bolts, rivets, pins, buckles, clamping claws, brackets, sleeves, glands, or other methods.

9. The coil combination structure includes a coil member and a first permeable body, and the coil member is a single coil or a plurality of coils (n コイル >1) A combination of components wherein the overall magnetic field generated is equivalent to the magnetic field generated by a specific single coil, the magnetic field generated by the coils of the combination component is in the same direction as the magnetic field generated by a dominant coil (if the magnetic field strengths generated by multiple coils that are components differ greatly, the magnetic field directions generated by these coils may also be opposite, but the overall magnetic field direction is the same as the magnetic field direction generated by the dominant coil), the overall magnetic field generated thereby can be considered as being generated by a current in a single coil component, and the coils are usually connected to each other by rigid structural members or flexible structural members (between coils, or at the edges of coils, or around coils), or without structural members, by adhesive, welding, embedding, screws, bolts, rivets, pins, buckles, clamping claws, brackets, sleeves, glands, or other methods, as described in 1).

10. The design method for a nonlinear term-canceling movable magnet oscillator according to claim 7, characterized in that the movable element assembly and the stator assembly have a shape in which recesses and protrusions are arranged to interlock alternately, and the closed curve of the main magnetic field lines of the coil and the closed curve of the main magnetic field lines of the permanent magnet alternately pass through the movable element assembly and the stator assembly, respectively.

11. The following conditions are also included: (3.1) When viewed from the center outward, the permanent magnet is on the inside and the coil is on the outside. (3.2)N 磁石 = (N コイル +1) * n, where n is a natural number, and n = 1, 2, 3... (3.3)N 磁石 >In case 1, the polarity of the two opposite end faces of the adjacent permanent magnets is the same, N コイル The design method for a nonlinear term-canceling movable magnet oscillator according to claim 3, characterized in that, in case 1, the direction of the current in adjacent coils is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils is the same.

12. The following conditions are also included: (3.1) When viewed from the center outward, the permanent magnet is on the inside and the coil is on the outside. (3.2)N 磁石 = (N コイル -1) * n, where n is a natural number, and n = 1, 2, 3... (3.3)N 磁石 >In case 1, the polarity of the two opposite end faces of the adjacent permanent magnets is the same, N コイル The design method for a nonlinear term-canceling movable magnet oscillator according to claim 3, characterized in that, in case 1, the direction of the current in adjacent coils is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils is the same.

13. The following conditions are also included: (3.1) When viewed from the center outward, the coil is on the inside and the permanent magnet is on the outside. (3.3)N 磁石 = (N コイル +1) * n, where n is a natural number, and n = 1, 2, 3... (3.3)N 磁石 >In case 1, the polarity of the two opposite end faces of the adjacent permanent magnets is the same, N コイル The design method for a nonlinear term-canceling movable magnet oscillator according to claim 3, characterized in that, in case 1, the direction of the current in adjacent coils is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils is the same.

14. The following conditions are also included: (3.1) When viewed from the center outward, the coil is on the inside and the permanent magnet is on the outside. (3.2)N 磁石 = (N コイル -1) * n, where n is a natural number, and n = 1, 2, 3... (3.3)N 磁石 >In case 1, the polarity of the two opposite end faces of the adjacent permanent magnets is the same, N コイル The design method for a nonlinear term-canceling movable magnet oscillator according to claim 3, characterized in that, in case 1, the direction of the current in adjacent coils is opposite, and the polarity of the electromagnetic field at the two adjacent end faces of the two adjacent coils is the same.

15. A design method for a nonlinear term-canceling movable magnet oscillator according to claim 10, characterized in that a permeable material is used in the part of the outer cylinder closest to the coil, the magnetic resistance of the magnetic path of the electromagnet constituting the coil is made as small as possible, the permanent magnets of the magnet assembly are isolated from each other by the permeable material, a yoke is used around the coil and permanent magnet, or, in the case of a coil combination structure, a permeable outer cylinder is used in the outer cylinder closest to the coil.

16. A nonlinear term-canceling movable magnet oscillator device employing the design method for a nonlinear term-canceling movable magnet oscillator described in claim 12, comprising a movable magnet oscillator body, the movable magnet oscillator body comprising an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly, the stator assembly comprising a coil combination structure, the movable element assembly comprising a magnet combination structure, the coil combination structure comprising a coil and a first permeator, the magnet combination structure comprising a permanent magnet and a second permeator, the coil combination structure further comprising a first permeator ring, and viewed from the center outward, the coil is on the outside, the permanent magnet is on the inside, there is one permanent magnet, there are two coils, the direction of the current of adjacent coils is opposite, and the polarity of the electromagnetic field of the two adjacent end faces of the two adjacent coils is the same, and the vibration Two dynamic conduction sheets are installed, and the two vibration conduction sheets are fixed to the top and bottom surfaces of the outer cylinder, respectively. The permanent magnet is fixed inside the second permeator, and both ends of the second permeator are fixed to the vibration conduction sheets. The first permeator is fixed to the center of the inner wall of the outer cylinder. The two coils are fixed to both sides of the first permeator, respectively. The first permeable ring is fixed to the outside of the two coils, and both the coils and the first permeable ring are fixed to the inner wall of the outer cylinder. The movable element assembly and the stator assembly are shaped so that concave and convex portions interlock alternately. The closed curves of the main magnetic field lines of the coils and the permanent magnets alternately pass through the movable element assembly and the stator assembly, respectively. Inside the movable magnet oscillator body are two magnetic domains D, each designed to be symmetrical. １，１ and D ２，１ A closed curve of the main magnetic field lines of the coil and the closed curve of the main magnetic field lines of the permanent magnet are, respectively, magnetic domain D １，１ and D ２，１ It passes through, and furthermore, magnetic domain D １，１ Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while magnetic domain D ２，１ The present invention relates to a nonlinear term-canceling type movable magnet oscillator device, characterized in that the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite.

17. A nonlinear term-canceling movable magnet oscillator device employing the design method for a nonlinear term-canceling movable magnet oscillator described in claim 13, comprising a movable magnet oscillator body, the movable magnet oscillator body comprising an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly, the stator assembly comprising a coil combination structure, the movable element assembly comprising a magnet combination structure, the coil combination structure comprising a coil and a first permeator, the magnet combination structure comprising a permanent magnet and a second permeator, the coil combination structure further comprising a first permeator ring, the magnet combination structure further comprising a second permeator ring, and viewed from the center outward, the coil is on the inside, the permanent magnet is on the outside, there are two permanent magnets, there is one coil, the polarity of the two opposite end faces of adjacent permanent magnets is the same, and there is one vibration transmission sheet. The vibration transmission sheet is fixed to the top surface of the outer cylinder, one end of the first permeator is fixed to the bottom surface of the outer cylinder, the coil is wound around and fixed to the first permeator, the first permeator ring is fixed to one end of the first permeator, the vibration transmission bracket is L-shaped, the horizontal part of the vibration transmission bracket is parallel to the vibration direction, the second permeator is fixed to the horizontal part of the vibration transmission bracket, the permanent magnets are fixed and installed on both sides of the second permeator, the two permanent magnets are fixed to the horizontal part of the vibration transmission bracket, the movable element assembly and the stator assembly are shaped so that recesses and protrusions interlock alternately, the closed curves of the main magnetic field lines of the coil and the closed curves of the main magnetic field lines of the permanent magnets alternately pass through the movable element assembly and the stator assembly, respectively, and inside the movable magnet type vibrator body there are two magnetic domains D designed to be symmetrical in pairs １，１ and D ２，１ A closed curve of the main magnetic field lines of the coil and the closed curve of the main magnetic field lines of the permanent magnet are, respectively, magnetic domain D １，１ and D ２，１ Passing through magnetic domain D １，１ In this case, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D ２，１ The present invention relates to a nonlinear term-canceling type movable magnet oscillator device, characterized in that the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

18. A nonlinear term-canceling movable magnet oscillator device employing the design method for a nonlinear term-canceling movable magnet oscillator described in claim 14, comprising a movable magnet oscillator body, the movable magnet oscillator body comprising an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly, the stator assembly comprising a coil combination structure, the movable element assembly comprising a magnet combination structure, the coil combination structure comprising a coil and a first permeator, the magnet combination structure comprising a permanent magnet and a second permeator, the coil combination structure comprising a first permeator ring and a second permeator ring, and viewed from the center outward, the coil is on the inside, the permanent magnet is on the outside, there is one permanent magnet, there are two coils, the direction of the current of adjacent coils is opposite, the polarity of the electromagnetic field at the two adjacent end faces of the two coils is the same, there is one vibration transmission sheet, and the vibration transmission sheet is the The first permeable body is fixed to the top surface of the outer cylinder, one end of the first permeable body is fixed to the bottom surface of the outer cylinder, the two coils are wound around and fixed to the first permeable body, the second permeable ring is fixed to one end of the first permeable body, the first permeable ring is fixed around the center of the first permeable body and is located between the two coils, the vibration transmission bracket is L-shaped, the horizontal part of the vibration transmission bracket is parallel to the direction of vibration, the permanent magnet is fixed in the center of the horizontal part of the vibration transmission bracket, the second permeable body is located on both sides of the permanent magnet and is fixed to the horizontal part of the vibration transmission bracket, the movable element assembly and the stator assembly are shaped so that concave and convex parts interlock alternately, the closed curves of the main magnetic field lines of the coil and the closed curves of the main magnetic field lines of the permanent magnet alternately pass through the movable element assembly and the stator assembly, respectively, and inside the movable magnet type oscillator body there are four magnetic domains D designed in pairs symmetrically １，１ , D ２，１、 D １，２ , D ２，２ A is provided, and here, D １，１ and D ２，１ It is symmetric, D １，２ and D ２，２ The two are symmetric, and the closed curve of the main magnetic field lines of the coil and the closed curve of the main magnetic field lines of the permanent magnet are, respectively, magnetic domain D １，１ , D ２，１、 D １，２ , D ２，２ Passing through magnetic domain D １，１ In this case, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D ２，１ The present invention relates to a nonlinear term-canceling type movable magnet oscillator device, characterized in that the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same.

19. A nonlinear term-canceling movable magnet oscillator device employing the design method for a nonlinear term-canceling movable magnet oscillator described in claim 12, comprising a movable magnet oscillator body, the movable magnet oscillator body comprising an outer cylinder, a vibration transmission sheet, a stator assembly, and a movable element assembly, the stator assembly comprising a coil combination structure, the movable element assembly comprising a magnet combination structure, the coil combination structure comprising a coil and a first permeable body, the magnet combination structure comprising a permanent magnet and a second permeable body, the coil combination structure further comprising a first permeable ring, and viewed from the center outward, the coil is on the outside, the permanent magnet is on the inside, there are two permanent magnets, the polarity of the two opposite end faces of adjacent permanent magnets is the same, there are three coils, the direction of the current of adjacent coils is opposite, and two adjacent coils have the polarity of the electromagnetic field of the two adjacent end faces is the same. Two vibration transmission sheets are installed, each fixed to the top and bottom surfaces of the outer cylinder, two permanent magnets are fixed to both sides of the second permeable body, each permanent magnet is fixed to a permeable bush, each permeable bush is fixed to the two vibration transmission sheets, three coils are sequentially fixed to the inner wall of the outer cylinder, the first permeable body is fixed between adjacent coils, the first permeable ring is fixed to the outside of the coils, both the first permeable body and the first permeable ring are fixed to the inner wall of the outer cylinder 1, the movable element assembly and the stator assembly are shaped so that concave and convex portions interlock alternately, the closed curves of the main magnetic field lines of the coils and the closed curves of the main magnetic field lines of the permanent magnets alternately pass through the movable element assembly and the stator assembly, respectively, and inside the movable magnet type oscillator body there are six magnetic domains D designed to be symmetrical in pairs １，１ , D ２，１ , D １，２ , D ２，２ , D １，３ , D ２，３ A section is provided, and here, magnetic domain D １，１ and D ２，１ While the two domains are symmetrical, the magnetic domain D １，２ and D ２，２ It is symmetric, D １，３ and D ２，３ The two are symmetric, and the closed curve of the main magnetic field lines of the coil and the closed curve of the main magnetic field lines of the permanent magnet are, respectively, magnetic domain D １，１ , D ２，１ , D １，２ , D ２，２ , D １，３ , and D ２，３ It passes through, and furthermore, magnetic domain D １，１ In this case, the magnetic field line direction of the coil and the magnetic field line direction of the permanent magnet are opposite, while magnetic domain D ２，１ Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, and furthermore, magnetic domain D １，２ Therefore, the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are the same, while magnetic domain D ２，２ The present invention relates to a nonlinear term-canceling type movable magnet oscillator device, characterized in that the direction of the magnetic field lines of the coil and the direction of the magnetic field lines of the permanent magnet are opposite.

20. A use of the design method for a nonlinear term-canceling movable magnet vibrator according to any one of claims 1 to 15, characterized in that the nonlinear term-canceling movable magnet vibrator obtained by the design method is applied to bone conduction headphones, bone conduction glasses, wired headphones, wireless headphones, AR glasses, VR glasses, smartwatches, smart bracelets, head-mounted devices, wearable devices, smartphones, game controllers, gaming headsets, gaming steering wheels, gaming pedals, mice, keyboards, touchscreens, electrical control panels, touch devices, screen sound devices, in-vehicle haptic feedback devices, smart cockpits, gaming chairs, massage chairs, massagers, haptic feedback vests, haptic feedback gloves, haptic feedback belts, haptic feedback leg devices, auxiliary hearing aids, sleep aid devices, or haptic feedback network interconnection devices.

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