Ferromagnetic coil parallel connection type push-pull nonlinear offset moving iron oscillator and application

Abstract

The invention relates to a ferromagnetic coil parallel push-pull nonlinear offset moving iron vibrator and application, the ferromagnetic coil parallel push-pull nonlinear offset moving iron vibrator comprises a moving iron vibrator body, the moving iron vibrator body comprises an outer cylinder, a vibration transmission sheet, a stator assembly and a mover assembly, the stator assembly comprises a magnet coil combination structure, the mover assembly comprises a magnetizer combination structure, and the magnetizer combination structure is connected with the outer cylinder. The stator assembly is fixed in the outer cylinder, the vibration transmission sheet is fixed on the outer cylinder, the rotor assembly is fixedly connected with the vibration transmission sheet through at least one site, and when viewed from the center to the outside, the permanent magnet of the magnet coil combined structure is arranged inside, and the coil is arranged outside; the mover assembly is subjected to electromagnetic acting force of pushing force and pulling force in pairs at the same time, and the push-pull type structural characteristic is shown.

Description

Technical Field

[0001] This invention relates to the field of oscillator technology, specifically to a moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation, and its applications. Background Technology

[0002] The design drawings of existing balanced armature drivers used to improve the high-frequency sound quality of headphones or hearing aids are attached. Figure 21 As shown, the armature passes through the voice coil and is located in the middle of the magnetic field formed by the two opposite poles of two magnets. When the current in the voice coil changes, the magnetic field lines and magnetic flux in the magnetic circuit structure passing through the armature change, and the interaction force with the magnetic field also changes, causing the armature to vibrate in the magnetic field. The vibration of the armature drives the drive rod, which in turn drives the diaphragm to vibrate. The vibration of the diaphragm further pushes the air to vibrate, and the sound waves are emitted from the sound outlet through air conduction, producing sound.

[0003] The structure of a typical balanced armature driver is unsuitable for bone conduction headphone oscillators and actuators used for haptic feedback. For bone conduction headphones, the oscillator needs to be in contact with the skin, transmitting vibrations to the cochlea in the inner ear by pushing against the bone. For haptic feedback, the oscillator needs to be in contact with the skin, generating tactile sensation by vibrating the skin surface. In both cases, the vibrations require significantly more kinetic energy than those required to vibrate air. In typical balanced armature designs, the armature is lightweight, typically less than 0.5 grams. The combination of the coil and magnet driving the armature, as well as their size, is insufficient to generate enough kinetic energy and force to drive bone conduction headphones and haptic feedback actuators.

[0004] Furthermore, the armature above is elongated, and its movement direction indicates an oscillating motion, rather than a general translational vibration along the armature's vibration direction. Bone conduction headphones and haptic feedback actuators often require the oscillator to vibrate as a general translational vibration along its vibration direction. This produces the best vibration effect. To achieve this general translational vibration, the design often assumes the vibration direction is along the Z-axis. In a cross-sectional view viewed along the Z-axis, the moving parts of the oscillator need several geometric centers, and the torque of the forces acting on the moving parts around these centers relative to the geometric centers must be zero. Achieving this often requires a certain degree of symmetry in the shape and forces acting on the oscillator. Clearly, the design of the moving arm above does not possess these characteristics.

[0005] Furthermore, no one has yet conducted a systematic study on the moving iron type of oscillator, revealing the relationship between the stiffness coefficient of the transducer and the target resonant frequency, the magnet coil assembly, and the iron core assembly, so as to provide theoretical guidance on how to design and improve the transducer, magnet coil assembly, and iron core assembly to achieve a certain target resonant frequency. Summary of the Invention

[0006] The purpose of this invention is to provide a moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation, and its application.

[0007] The technical solution of this invention is: a parallel ferromagnetic coil push-pull type nonlinear canceling moving iron oscillator, comprising a moving iron oscillator body, the moving iron oscillator body comprising an outer cylinder, a vibration transducer, a stator assembly, and a mover assembly, the stator assembly comprising a magnet coil assembly structure, the mover assembly comprising a magnetic conductor assembly structure, the stator assembly being fixed inside the outer cylinder, the vibration transducer being fixed on the outer cylinder, and the mover assembly being fixedly connected to the vibration transducer through at least one point. Viewed from the center outwards, the permanent magnet of the magnet coil assembly structure is inside, and the coil is outside; the mover assembly is simultaneously subjected to paired push and pull electromagnetic forces, exhibiting a push-pull structural characteristic.

[0008] This invention provides an improved ferromagnetic coil parallel push-pull nonlinear cancelling moving iron oscillator and its application, which, compared with the prior art, has the following improvements and advantages:

[0009] 1. The parallel ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator adopts a symmetrical or asymmetrical design, which enables the nonlinear term to be completely or partially canceled in the final resultant force, thereby greatly reducing the distortion of the oscillator and improving the fidelity of the oscillator for the original audio signal or tactile feedback signal.

[0010] 2. The parallel ferromagnetic coil push-pull nonlinear canceling moving iron oscillator is subjected to uniform and balanced forces, realizing the overall translational vibration of the oscillator, resulting in good vibration effect.

[0011] 3. Because it reveals the relationship between the spring constant k2 and the target resonant frequency ω t And the relationship between m1 and m2, using the target resonant frequency, to design the stiffness coefficient of the transmission plate in reverse, that is, assuming it to be ω. t By modifying the material and thickness of the vibration transducer, as well as the length and width of the vibration transmission limbs, the final stiffness coefficient value can be made close to the calculated k2. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a cross-sectional view of Embodiment 1 of the present invention;

[0014] Figure 2 This is the closed magnetic field line curve of the coil and permanent magnet in Embodiment 1 of the present invention;

[0015] Figure 3 This is a magnetic domain analysis diagram of Embodiment 1 of the present invention;

[0016] Figure 4 This is a diagram showing the relationship between the magnetic field and the stator assembly in Embodiment 1 of the present invention;

[0017] Figure 5 This is a force analysis diagram of the moving part assembly in Embodiment 1 of the present invention;

[0018] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention;

[0019] Figure 7 This is the closed magnetic field curve of the coil and permanent magnet in Embodiment 2 of the present invention;

[0020] Figure 8 This is a magnetic domain analysis diagram of Embodiment 2 of the present invention;

[0021] Figure 9 This is a diagram showing the relationship between the magnetic field and the stator assembly in Embodiment 2 of the present invention;

[0022] Figure 10 This is a force analysis diagram of the moving part assembly in Embodiment 2 of the present invention;

[0023] Figure 11 This is a cross-sectional view of Embodiment 3 of the present invention;

[0024] Figure 12 This is the closed magnetic field curve of the coil and permanent magnet in Embodiment 3 of the present invention;

[0025] Figure 13 This is a magnetic domain analysis diagram of Embodiment 3 of the present invention;

[0026] Figure 14 This is a diagram showing the relationship between the magnetic field and the stator assembly in Embodiment 3 of the present invention;

[0027] Figure 15 This is a force analysis diagram of the moving part assembly in Embodiment 3 of the present invention;

[0028] Figure 16 This is a cross-sectional view of Embodiment 4 of the present invention;

[0029] Figure 17 This is the closed magnetic field curve of the coil and permanent magnet in Embodiment 4 of the present invention;

[0030] Figure 18 This is a magnetic domain analysis diagram of Embodiment 4 of the present invention;

[0031] Figure 19 This is a diagram showing the relationship between the magnetic field and the stator assembly in Embodiment 4 of the present invention;

[0032] Figure 20 This is a force analysis diagram of the moving part assembly in Embodiment 4 of the present invention;

[0033] Figure 21This is a structural schematic diagram of an existing moving iron unit;

[0034] Figure 22 A schematic diagram of a single-sided (single-transmission oscillator) model;

[0035] Figure 23 A schematic diagram of the force analysis of a single-sided (single-transmission oscillator) model;

[0036] Figure 23a A schematic diagram of a double-sided (single-transmission oscillator) model;

[0037] Figure 23b A schematic diagram of the force analysis of a double-sided (single-transmission oscillator) model;

[0038] Figure 24 The frequency response curve of a double-sided (single-transmission oscillator);

[0039] Figure 25 Let k2 and m1 be the stiffness coefficients of the vibration transducer.

[0040] Figure 26 Let k2 and m2 be the stiffness coefficients of the vibration transducer.

[0041] Figures 27-43a This is a schematic diagram of the magnet component in this invention;

[0042] Figures 44-56 This is a schematic diagram of the coil component in this invention;

[0043] Figures 57-62 This is a schematic diagram of the magnetic field in this invention. Detailed Implementation

[0044] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Parallel magnetic coils: When viewed along the vibration direction of the oscillator, the arrangement of the permanent magnet and the coil is parallel to the vibration direction of the oscillator, and when viewed from the center outwards, the permanent magnet is inside and the coil is outside, which is the parallel magnetic coil type.

[0046] Magnetic domain: A magnetic domain is a spatial region filled with electromagnetic energy, generally composed of air or a medium with low permeability (e.g., relative permeability <1000), including the region where the magnetic material is located; the moving coil oscillator of this invention, which cancels out nonlinear terms, includes at least one magnetic domain. A magnetic domain refers to a spatial region where a certain electromagnetic field or multiple electromagnetic fields exist, causing interaction forces between the components surrounding the magnetic domain. We define such a region as a magnetic domain, or simply a magnetic domain. A magnetic domain is the spatial region where magnetic interaction occurs. It is generally composed of the spatial region between permanent magnets (producing attractive or repulsive interactions), or the spatial region enclosed by permanent magnets and magnetic conductors (producing attractive interactions), or the spatial region enclosed by magnetic conductors (yokes) magnetized by permanent magnets, or a group of spatial regions where magnetic interaction occurs within permanent magnets (the permeability of the hard magnetic material constituting the permanent magnet is close to that of air).

[0047] Several types of magnetic domains:

[0048] 1) The space between the permanent magnets is filled with a medium (air, with a relative permeability slightly greater than 1).

[0049] The medium above can be replaced with a paramagnetic material, an antimagnetic material, or a ferromagnetic material with a relative permeability of less than 1000. For example:

[0050] a. Paramagnetic materials: These have a relative permeability slightly greater than 1. Examples of paramagnetic materials include air, oxygen, tin, aluminum, and lead. When a paramagnetic material is placed in a magnetic field, the magnetic induction intensity B increases slightly.

[0051] b. Diamagnetic materials: These are materials with a relative permeability slightly less than 1, such as hydrogen, copper, graphite, silver, and zinc. They are also called diamagnetic materials. When a diamagnetic material is placed in a magnetic field, the magnetic induction intensity B decreases slightly.

[0052] c. Ferromagnetic materials: These have a relative permeability much greater than 1 but less than 1000. Examples include iron, steel, cast iron, nickel, and cobalt. Materials with a relative permeability less than 1000 include cobalt, unannealed cast iron, and annealed cast iron. Magnetic fluids, on the other hand, have a relative permeability below 10.

[0053] like Figure 57 As shown, permanent magnet 1 and permanent magnet 2 are surrounded by air. The permanent magnets attract each other.

[0054] Magnetic domain D1: The spatial region enclosed by the air medium between permanent magnet 1 and permanent magnet 2.

[0055] Magnetic domain D2: The spatial region enclosed by the partial permanent magnet 2 and the air medium surrounding the partial permanent magnet 2.

[0056] Magnetic domain D3: The spatial region enclosed by all permanent magnets 1 and the air medium surrounding permanent magnets 1.

[0057] Magnetic domain D4: The spatial region enclosed by all permanent magnets 1 and 2, and the air medium surrounding permanent magnets 1 and 2.

[0058] Magnetic domain D5: The spatial region enclosed by air medium on the side of permanent magnet 2 away from permanent magnet 1.

[0059] Magnetic domain D6: The spatial region enclosed by the permanent magnet material medium surrounding part of the permanent magnet 1.

[0060] like Figure 58 As shown, permanent magnet 1 and permanent magnet 2 are surrounded by air. The permanent magnets attract each other. Similarly, D1-D6 can be defined.

[0061] 2) The space between the permanent magnet and the magnetic conductor is filled with a medium (air, with a relative permeability close to 1).

[0062] 3) such as Figures 50-60 As shown, the space between the magnetic conductors is filled with a medium (air, with a relative permeability close to 1).

[0063] Magnetic domain D1: The spatial region enclosed by the air medium between magnetic conductor 1 and magnetic conductor 2.

[0064] Magnetic domain D2: The spatial region enclosed by a portion of permanent magnets and a portion of magnetic conductors 2, as well as the surrounding air medium.

[0065] Magnetic domain D3: The spatial region enclosed by all the magnetic conductors 1, some permanent magnets, and the air medium surrounding the magnetic conductors 1.

[0066] Magnetic domain D4: The spatial region enclosed by all magnetic conductors 1 and 2, permanent magnets, and the air medium surrounding them.

[0067] Magnetic domain D5: The spatial region enclosed by the air medium on the side of conductor 2 away from magnetic conductor 1.

[0068] Magnetic domain D6: The spatial region enclosed by a permanent magnetic material medium surrounding a portion of the permanent magnet.

[0069] 4) such as Figure 61 As shown, the space between the magnet and the magnetic conductor is filled with a medium (magnetorheological fluid, with a relative permeability between 5 and 9).

[0070] 5) The internal space of the permanent magnet is filled with a medium (permanent magnet material, relative permeability <1000).

[0071] like Figure 62 As shown in the previous example, magnetic domain D6 has a permanent magnet material as its medium. For example, the permeability of sintered ferrite, samarium cobalt and neodymium iron boron is about 1.05, the permeability of bonded ferrite is also about 1.05, and the permeability of bonded neodymium magnets ranges from about 1.1 to 1.7.

[0072] There are two types of magnetic force domains. The first type is the magnetic force domain enclosed within the mover assembly or the stator assembly. The second type is the magnetic force domain enclosed between the mover assembly and the stator assembly. We are more interested in the second type of magnetic force domain. Therefore, by analyzing the second type of magnetic force domain, we can obtain the force analysis of the mover assembly, thereby obtaining the resultant force of the mover assembly in the oscillator system, and further derive its vibration equation.

[0073] Example 1

[0074] Please refer to Figure 1-5 A parallel-connected ferromagnetic coil push-pull nonlinear canceling moving iron oscillator includes a moving iron oscillator body 11. The moving iron oscillator body 11 includes an outer cylinder 1, a transmission plate 8, a stator assembly, and a mover assembly. The stator assembly includes a magnet coil assembly structure, and the mover assembly includes a magnetic conductor assembly structure. The stator assembly is fixed inside the outer cylinder 1, and the transmission plate 8 is fixed on the outer cylinder 1. The mover assembly and the transmission plate 8 are fixedly connected through at least one point. The magnet coil assembly structure includes coils C1 and C2, a permanent magnet 6, and a first magnetic conductor 4. The magnetic conductor assembly structure includes a second magnetic conductor 7. The magnet coil assembly structure also includes a first magnetic conductor ring 2, and the magnetic conductor assembly structure also includes a second magnetic conductor ring 5. The mover assembly is simultaneously subjected to paired push and pull electromagnetic forces, exhibiting a push-pull structural characteristic.

[0075] The outer cylinder 1 can be a magnetically conductive outer cylinder or a non-magnetically conductive outer cylinder. To reduce magnetic resistance, a magnetically conductive outer cylinder is preferred. The vibration transducer 8 can be circular, rectangular, racetrack-shaped, or three-dimensional, and can be selected according to needs.

[0076] Looking outwards from the center, coils C1 and C2 are on the outside, and permanent magnet 6 is on the inside. There is one permanent magnet 6 and two coils C1 and C2. The currents in coils C1 and C2 flow in opposite directions. Permanent magnet 6 and the first magnetic conductor 4 are tightly bonded and fixed together. Two vibration transducers 8 are provided, fixed to the top and bottom surfaces of the outer cylinder 1 respectively. The second magnetic ring 5 is fixed to the second magnetic conductor 7, with both ends of the second magnetic conductor 7 fixed to the vibration transducers 8. The first magnetic conductor 4 is fixed to the middle of the inner wall of the outer cylinder. Coils C1 and C2 are fixed to both sides of the first magnetic conductor 4. The first magnetic ring 2 is fixed to the outside of coils C1 and C2. Coils C1 and C2 and the first magnetic ring 2... Both are fixed on the inner wall of the outer cylinder 1. The moving iron assembly and the stator assembly are arranged in an alternating, interlocking shape. The closed curves of the main magnetic lines of force of coils C1 and C2 and the closed curves of the main magnetic lines of force of permanent magnet 6 alternately pass through the moving iron assembly and the stator assembly, respectively. The moving iron type oscillator body has two symmetrically designed magnetic domains D1 and D2. The closed curves of the main magnetic lines of force of coils C1 and C2 and the closed curves of the main magnetic lines of force of permanent magnet 6 pass through magnetic domains D1 and D2, respectively. In magnetic domain D1, the direction of the magnetic lines of force of coil C1 is the same as that of permanent magnet 6, while in magnetic domain D2, the direction of the magnetic lines of force of coil C2 is opposite to that of permanent magnet 6. Moreover, for each pair of magnetic domains D1 and D2, the magnetic lines of force of coil C2 are fixed in the same direction as those of permanent magnet 6. i The electromagnetic force F on the moving part 1，i and F 2，i The forces acting along the direction of vibration are opposite in direction, therefore their resultant forces ∑ i F 1，i and the combined force ∑ i F2 ，i， The forces acting along the direction of vibration are also opposite in direction. This combination of pushing and pulling forces forms a push-pull design, and in the final resultant force ∑ i (F 1，i +F 2，i In the above, the total resultant force is reduced by partially or completely canceling out the nonlinear term of the current. The stiffness coefficient k2 of the vibration transducer is m1, m2, ω. t The function, i.e., k = f(m1, m2, ω t ), where m1=m1=m shell +m 磁铁线圈组件 m2=m 铁芯组件 ω t The target resonant frequency,

[0077] Please refer to Figure 22 23, 23a, 23b;

[0078] 1) Single-sided (single-spring) oscillator

[0079] A single-sided (single-spring) oscillator is one where only one side of the oscillator has a single spring along the Z-axis. Assume the spring connects to the mover assembly. The spring and mover assembly together form a vibrating subsystem. The mover assembly is connected to the outer cylinder of the oscillator via a spring-loaded vibrating plate.

[0080] Assume the rotator component has a mass m r The mass of the stator assembly is m. s The spring constant of the spring connected to the moving part assembly is k. s Additionally, assume the mass of the oscillator's outer shell is m. shell =m 外筒sleeve +m 弹簧片spring For the sake of simplicity in formula derivation, we define m² = m r =m 铁芯组件 Furthermore, since the stator is fixed to the outer cylinder, m1 is defined as m shell +m r =m shell +m 磁铁线圈组件 .

[0081] For simplicity, assume the damping of the spring is very small, close to zero. Assume the electromagnetic forces between the mover assembly (iron core) and the stator assembly (magnet coil) interact, and the forces acting on the mover assembly and stator assembly are F and F, respectively. r and F s According to Newton's third law, F r =-F s

[0082] 2) Double-sided (single-spring) oscillator

[0083] A double-sided (single-spring) oscillator has a single-spring on each of its two sides along the Z-axis. Assume the springs connect to the mover assembly. The spring and mover assembly together form a vibrating subsystem, with the mover assembly connected to the outer cylinder of the oscillator via spring-loaded transducers.

[0084] Assume the rotator component has a mass m r The mass of the stator assembly is m. s The moving part assembly connects two spring plates on two surfaces simultaneously, assuming their spring constants are k and k respectively. s1 and k s2 Then the total spring constant of the moving part assembly connecting the springs is k. r =k s1 +k s2 Additionally, assume the mass of the oscillator's outer shell is m. shell =m 外筒sleeve +m 弹簧片springFor the sake of simplicity in formula derivation, we define m² = m r =m 铁芯组件 Furthermore, since the stator is fixed to the outer cylinder, m1 is defined as m shell +m r =m shell +m magnet 线圈组件 .

[0085] For simplicity, assume the damping of the spring is very small, close to zero. Assume the electromagnetic forces between the mover assembly (magnet) and the stator assembly (coil) interact, and the forces acting on the mover and stator assemblies are F and F, respectively. r and F s According to Newton's third law, F r =-F s .

[0086] A single-acting oscillator becomes a single-vibrator system, where the system has only one resonant frequency.

[0087] f resonant Abbreviation f r , is the resonant frequency of the frequency response curve. Frequency f low It is the low-frequency cutoff frequency of the frequency response curve, f. high This is the high-frequency cutoff frequency of the frequency response curve. As can be seen from the graph of the frequency response curve, the resonant frequency f... resonant and f low It is relatively closer. Therefore, in practical systems, the resonant frequency f is optimized through design. resonant To adjust f low .

[0088] Modeling and solving of vibration systems with a single moving oscillator:

[0089] Based on the system modeling above, the dynamic equations of the single-moving oscillator itself can be obtained as follows:

[0090]

[0091] in:

[0092]

[0093]

[0094]

[0095] make

[0096] Where f r It is the electromagnetic interaction force between the moving and stating elements.

[0097] Based on the vibration equation of a single-moving oscillator, its resonant frequency equation can be solved as follows:

[0098] m1m2ω 4 -((m1+m2)k2)ω 2 =(m1m2ω 2 -(m1+m2)k2)ω 2 =0

[0099] Solving for the given information

[0100]

[0101] Question: The target resonant frequency is ω t =2πf t So, what spring constant k2 should be selected for the spring?

[0102] The above formula can be used to design the spring constant value of the spring by reverse engineering from the target resonant frequency, that is, assuming the target resonant frequency is ω. t Then the spring constant of the shrapnel can be obtained as:

[0103]

[0104] How to design a double-spring spring to satisfy k2 above?

[0105] We can modify the material and thickness of the spring sheet, as well as the length and width of the spring's transmission limb, to make the final spring constant value close to the calculated k2, thereby guiding the design of the transmission plate 8.

[0106] The stiffness coefficient k2 of the vibration transducer 8 and They exhibit a monotonically positive correlation. Where ω t It is the target resonant frequency of the oscillator.

[0107] The stiffness coefficient k2 of the vibration transducer 8 and They are linearly positively correlated.

[0108] The stiffness coefficients k2, m1, and m2 of the vibration transmission plate 8 are monotonically positively correlated.

[0109] The stiffness coefficients k2 and m1(g, gram) and m2(g, gram) of the vibration transducer 8 are monotonically positively correlated, and similarly... Figure 25 The curve shape of 26.

[0110] To further illustrate the design method of the parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator, please refer to the appendix. Figure 2 and 3Air gap D1 forms the magnetic field domain D1, and air gap D2 forms the magnetic field domain D2. Within the magnetic field domain, the total magnetic flux / magnetic induction intensity generated by the superposition of the magnetic field generated by the permanent magnet 6 and the magnetic fields generated by the electromagnets C1 and C2 causes the components around the magnetic field to generate interaction forces.

[0111] Appendix Figure 2 and 3 In the circuit, the current through coils C1 and C2 is i, but the current directions in coils C1 and C2 are opposite. Assume 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 In magnetic domain D1 (magnetic field 1), the direction of the magnetic field lines corresponding to coil C1 is the same as the direction of the magnetic field lines corresponding to permanent magnet 6. Therefore, in magnetic domain 1, the total magnetic flux is Φ. i1 and Φ m The sum of the values. In magnetic domain D2 (magnetic field 2), the direction of the magnetic field lines corresponding to coil C2 is opposite to the direction of the magnetic field lines corresponding to permanent magnet 6. Therefore, in magnetic domain D2, the total magnetic flux is Φ. i2 and Φ m The difference.

[0112] Φ D1 =Φ m +Φ i1

[0113] Φ D2 =Φ m -Φ i2

[0114] Assume that the magnetic reluctance of the magnetic circuit formed by the electromagnetic fields generated by the currents in coils C1 and C2 above is Z respectively. i1 and Z i2 Where N is the number of turns in the coil and i is the current intensity, then:

[0115]

[0116]

[0117] Because the magnetic circuit structure of coil 1 / 2 is a symmetrical design, therefore Z i1 =Z i2 =Z i Therefore, Furthermore, assuming the permeability of the magnetic circuit formed by the electromagnetic field generated by the current is G. i Then we have:

[0118]

[0119] The magnetic flux of a permanent magnet can also be expressed using the formula for magnetic induction intensity. Let's assume the magnetic induction intensity at the extreme ends of the permanent magnet is B. m The area of ​​the magnetic pole end is S. m , can be obtained

[0120] Therefore,

[0121]

[0122] Please refer to the appendix. Figure 2 Draw the closed magnetic field lines of coils C1 and C2 and permanent magnet 6 separately. In the figure, the closed magnetic field lines generated by coil C1 pass through magnetic gap D1, the closed magnetic field lines generated by coil C2 pass through magnetic gap D2, and the closed magnetic field lines generated by permanent magnet 6 pass through magnetic gaps D1 and D2 in sequence.

[0123] Please refer to the appendix. Figure 4 The diagram shows the relationship between the mover assembly, magnetic domains D1 and D2, and the stator assembly. In magnetic domain D1, the mover assembly experiences a rightward attractive force F1 from the stator assembly, and in magnetic domain D2, the mover assembly experiences a leftward attractive force F2 from the stator assembly. Taking the rightward direction as positive, the resultant force of the mover assembly on the stator assembly is F1 - F2.

[0124] Please refer to the appendix. Figure 5 , attached Figure 5 This is a force analysis diagram isolated from the moving part. The moving part is subjected to forces from the stator part, namely a rightward suction force F1 and a leftward suction force F2, the resultant force of which is F1-F2.

[0125] F 动铁 =F1-F2

[0126] From the appendix Figure 5 The force analysis diagram of the moving part assembly also shows that, for each magnetic field pair D=(D1,D2), the two forces F1 and F2 acting on the moving part assembly have the following characteristics:

[0127] 1) The directions of forces F1 and F2 are both along the Z-axis, which is the direction of vibration.

[0128] 2) F1 and F2 are vectors, meaning their forces are in opposite directions. When the direction of force F1 is positive (e.g., let the right side be positive), the direction of force F2 is exactly negative. The reverse is also true; that is, when the direction of force F1 is negative, the direction of force F2 is exactly positive.

[0129] The pairing of forces F1 and F2, along with their directional correlation, means that the moving component being acted upon is simultaneously subjected to a thrust and a pull. This type of force distribution is called a push-pull force structure, and the corresponding design is called a push-pull design.

[0130] Further derive the formulas for the electromagnetic forces generated in each magnetic domain. The electromagnetic attraction acting on a magnetized ferromagnetic object is proportional to the total area of ​​the magnetic field lines passing through the magnetic poles and the square of the magnetic flux density. If the magnetic flux density B is uniformly distributed along the surface of the magnetic poles, and the calculated air gap length is small, then the formula for calculating the electromagnetic attraction is Maxwell's formula, and its expression is:

[0131]

[0132] F: Electromagnetic attraction

[0133] B: Magnetic flux density or magnetic induction intensity

[0134] Magnetic flux through a medium

[0135] S: Area of ​​magnetic field lines crossing magnetic poles

[0136] μ0: Air permeability

[0137] C: A constant, with different values ​​depending on the scenario. If it refers to the force between two permanent magnets, then C... m2m The value is usually taken as 1, and the accurate value is obtained through actual measurement during the design process; if the force between the permanent magnet and the conductive magnet (yoke) is..., then C... m2y The value is usually taken as 1 / 2, and the accurate value is obtained through actual measurement during the design process; if it is the force between the magnetic conductor (yoke) and the magnetic conductor (yoke), it is denoted as C. y2y It is usually taken as 1 / 4, and the accurate value is obtained through actual measurement during the design process.

[0138] Applying the above formula to calculate the electromagnetic attraction in magnetic domain 1 and magnetic domain 2, we get:

[0139]

[0140] Among them, S D1 S D2 These are the areas of the annular end faces corresponding to magnetic domains 1 and 2, respectively, and S D1 =S D1 =S D Therefore:

[0141]

[0142]

[0143] Among them are:

[0144]

[0145]

[0146] because

[0147] F 动铁 =F1-F2

[0148] Then there is

[0149] F 动铁，linear =F 动铁，linear +F 动铁，nonlinear

[0150]

[0151] F 1，linear F 2，linear F 1，nonlinear F 1，nonlinear Substitute F respectively 动铁，linear and F 动铁，nonlinear The calculations are as follows:

[0152]

[0153] because

[0154]

[0155]

[0156] Therefore:

[0157]

[0158] Similarly, calculate F. 动铁，nonlinear ,

[0159]

[0160] Therefore, the net force on the moving iron, which acts as the moving part, is:

[0161]

[0162] From the above derivation process, the following characteristics can be observed:

[0163] 1) In the linear term of the resultant force F 动铁，linear In the middle, the component force F 1，linear and F 2，linear The linear terms of each individual are superimposed to form the resultant linear term F. 动铁，linear The coefficient of the coil current is larger.

[0164] 2) In the nonlinear term F of the resultant force 动铁，nonlinear In the middle, the component force F 1，nonlinearand F 2，nonlinear Their respective nonlinear terms cancel each other out, thus the resultant nonlinear term F 动铁，nonlinear It is zero.

[0165] We call the above oscillator structure a ferromagnetic coil parallel push-pull type nonlinear canceling moving iron oscillator. This structure can be used not only for oscillators but also for brakes. Moving iron oscillators or brakes using the above structure are also called ferromagnetic coil parallel push-pull type nonlinear canceling moving iron oscillators or brakes.

[0166] Example 2

[0167] Please refer to Figure 6-10 A parallel-connected ferromagnetic coil push-pull nonlinear canceling moving iron oscillator includes a moving iron oscillator body 11. The moving iron oscillator body 11 includes an outer cylinder 1, a transmission plate 8, a stator assembly, and a mover assembly. The stator assembly includes a magnet coil assembly structure, and the mover assembly includes a magnetic conductor assembly structure. The stator assembly is fixed inside the outer cylinder 1, and the transmission plate 8 is fixed on the outer cylinder 1. The mover assembly and the transmission plate 8 are fixedly connected through at least one point. The magnet coil assembly structure includes a coil 3, a permanent magnet 6, and a first magnetic conductor 4. The magnetic conductor assembly structure includes a second magnetic conductor 7. The magnet coil assembly structure also includes a first magnetic conductor ring 2, and the magnetic conductor assembly structure also includes a second magnetic conductor ring 5. The mover assembly is simultaneously subjected to electromagnetic forces of two pairs of push and pull forces, exhibiting a push-pull structural feature. The outer cylinder 1 can be a magnetically conductive outer cylinder or a non-magnetically conductive outer cylinder. To reduce magnetic resistance, a magnetically conductive outer cylinder is preferred.

[0168] The moving iron type oscillator body 11 includes an outer cylinder 1, vibration transducers 8, a stator assembly, and a mover assembly. The stator assembly includes a coil 3, a permanent magnet 5, and a first magnetic conductor 2. The mover assembly includes a second magnetic conductor 7, and also includes a first magnetic ring 4 and a second magnetic ring 6. Viewed from the center outwards, the coil 3 is on the outside, and the permanent magnet 5 is on the inside. There are two permanent magnets 5, and the polarity of the two opposite end faces of adjacent permanent magnets 5 is the same, both being N poles. There are two vibration transducers 8, which are respectively fixed to the top and bottom surfaces of the outer cylinder 1. The two ends of the second magnetic conductor 7 are respectively fixed to the vibration transducers 8, and the second magnetic ring 6 is fixed to the second magnetic conductor 7. The first magnetic ring 4 is fixed at the end of the second magnetic conductor 7, and the coil 3 is fixed at the middle of the inner wall of the outer cylinder 1. The first magnetic conductor 2 is fixed on both sides of the coil 3. The two permanent magnets 5 are tightly bonded to the first magnetic conductor 2. The first magnetic conductor 2 is distributed and fixed at both ends of the inner wall of the outer cylinder 1. The moving part assembly and the stator assembly are arranged in an alternating concave-convex interlocking shape. The closed curve of the main magnetic force line of the coil 3 and the closed curve of the main magnetic force line of the permanent magnet 5 alternately pass through the moving part assembly and the stator assembly. The moving iron type oscillator body 11 has 4 magnetic domains D with a pairwise symmetrical design inside. 1，l D l，2 D2，1 and D 2，2 Among them, magnetic domain D l，l With D 2，1 Symmetry, magnetic domain D 1，2 and D 2，2 Symmetrical, the closed curves of the main magnetic field lines of coil 3 and the closed curves of the main magnetic field lines of permanent magnet 5 respectively cross the magnetic field D. 1，1 D 1，2 D 2，1 and D 2，2 In the magnetic domain D 1，1 With D 2，1 In the middle, the direction of the magnetic field lines of coil 3 is the same as the direction of the magnetic field lines of permanent magnet 5, while in the magnetic domain D... 1，2 and D 2，2 In the middle, the direction of the magnetic field lines of coil 3 is opposite to the direction of the magnetic field lines of permanent magnet 5, and for each pair of magnetic domains D i The electromagnetic force F on the moving part 1，i and F 2，i The forces acting along the direction of vibration are opposite in direction, therefore their resultant forces ∑ i F 1，i and the combined force ∑ i F 2，i The forces acting along the direction of vibration are also opposite in direction. This combination of pushing and pulling forces forms a push-pull design, and in the final resultant force ∑ i (F 1，i +F 2，i In the process, the total resultant force is reduced by partially or completely canceling out the nonlinear term of the current. The stiffness coefficient k2 of the vibration transmission plate 8 is m1, m2, ω. t The function is k = f(m1, m2, ωt), where m1 = m1 = mt. shell +m 磁铁线圈 Component, m2 = m 铁芯组件 ω t The target resonant frequency,

[0169] The derivation process of nonlinear term cancellation in Example 2 is the same as that in Example 1, and will not be repeated here.

[0170] Example 3

[0171] Please refer to Figure 11-15A parallel ferromagnetic coil push-pull nonlinear canceling moving iron oscillator includes a moving iron oscillator body 11. The moving iron oscillator body 11 includes an outer cylinder 1, a transmission plate 9, a stator assembly, and a moving iron assembly. The stator assembly includes a magnet coil combination structure, and the moving iron assembly includes a magnetic conductor combination structure. The stator assembly is fixed inside the outer cylinder 1, and the transmission plate 9 is fixed on the outer cylinder 1. The moving iron assembly and the transmission plate 9 are fixedly connected through at least one point. The magnet coil combination structure includes a coil 3, a permanent magnet 6, and a first magnetic conductor 4. The magnetic conductor combination structure includes a second magnetic conductor 8. The magnet coil combination structure also includes a first magnetic ring 2. The moving iron assembly is simultaneously subjected to electromagnetic forces of two pairs of push and pull forces, exhibiting a push-pull structural feature.

[0172] The magnetic conductor assembly structure also includes a magnetic sleeve 5 and a second magnetic ring 7. Looking outwards from the center, coils 3 are on the outside, and permanent magnets 6 are on the inside. There are two permanent magnets 6 and three coils 3. The polarities of the two opposite end faces of adjacent permanent magnets 6 are the same, and the directions of the current in adjacent coils 3 are opposite. The electromagnetic field polarities of the two adjacent end faces of two adjacent coils are the same. Two vibration transducers 9 are provided, and the two vibration transducers 9 are respectively fixed to the top and bottom surfaces of the outer cylinder 1. The two ends of the second magnetic conductor 8 are respectively fixed to the vibration transducers 9, and the second magnetic ring 6 is fixed to the first... In the middle of the two magnetic conductors 8, three coils 3 are fixed to the inner wall of the outer cylinder 1. First magnetic rings 2 are fixed to both sides of each coil 3. Two permanent magnets 6 are tightly bonded to the first magnetic conductors 4, which are distributed and fixed at both ends of the inner wall of the outer cylinder 1. The moving part assembly and the stator assembly are arranged in an alternating, interlocking pattern. The closed curves of the main magnetic lines of force of the coils 3 and the permanent magnets 6 alternately pass through the moving part assembly and the stator assembly. The moving iron type oscillator body has six symmetrically designed magnetic domains D inside. 1，1 D 2，1 D 1，2 D 2，2 D 1，3 D 2，3 Among them, magnetic domain D 1，1 With D 2，1 Symmetry, magnetic domain D 1，2 and D 2，2 Symmetry, D 1，3 and D 2，3 Symmetrical, the closed curves of the main magnetic field lines of coil 3 and the closed curves of the main magnetic field lines of the permanent magnet respectively cross the magnetic domain D. 1，1 D 2，1 D 1，2 D 2，2 D 1，3 and D 2，3， Furthermore, for each pair of magnetic domains D i The electromagnetic force F on the moving part l，i and F 2，iThe forces acting along the direction of vibration are opposite in direction, therefore their resultant forces ∑ i F 1，i and the combined force ∑ i F 2，i The forces acting along the direction of vibration are also opposite in direction. This combination of pushing and pulling forces forms a push-pull design, and in the final resultant force ∑ i (F 1，i +F 2，i In the process, the total resultant force is reduced by partially or completely canceling out the nonlinear term of the current. The stiffness coefficient k2 of the vibration transmission plate 8 is m1, m2, ω. t The function, i.e., k = f(m1, m2, ω t ), where m1=m1=m shell +m 磁铁线圈组件 m2=m 铁芯组件 ω t The target resonant frequency,

[0173] from Figure 14-15 The force analysis of the moving part also shows that, as can be seen from the above, for each magnetic domain, the force analysis of the moving part can be performed on D. j =(D 1，j D 2，j The two forces acting on the moving component, F 1，j and F 2，j It has the following characteristics:

[0174] 1)F 1，j and F 2，j The direction of the force is along the Z-axis, which is the direction of vibration.

[0175] 2)F 1，j and F 2，j As vectors, forces have opposite directions. F 1，j When the direction of the force is positive (for example, if we define the right side as positive), F 2，j The direction of the force is exactly negative. The converse is also true, i.e., F... 1，j When the direction of the force is negative, F 2，j The direction of the force is exactly positive.

[0176] 3)F 1，j and F 2，j The characteristic of forces occurring in pairs and with related directions means that the moving component being acted upon is simultaneously subjected to a thrust and a pull. This type of force distribution is called a push-pull force structure, and the corresponding design is called a push-pull design.

[0177] F 1，j and F 2，j Appearing in pairs, each F 1，j and F2，j The resultant force ∑F formed by each 1，j and ∑F 2，j Between them, there must be a pushing force and a pulling force, with the resultant force ∑F 1，j and ∑F 2，j It is also a push-pull type of force-bearing structure.

[0178] The derivation process of nonlinear term cancellation in Example 3 is the same as that in Example 1, and will not be repeated here.

[0179] Example 4

[0180] Please refer to Figure 16-20 A parallel-connected ferromagnetic coil push-pull type nonlinear canceling moving iron oscillator and its application are disclosed. The moving iron oscillator body 11 includes an outer cylinder 1, a transmission plate 9, a stator assembly, and a mover assembly. The stator assembly includes a magnet coil assembly structure, and the mover assembly includes a magnetic conductor assembly structure. The stator assembly is fixed inside the outer cylinder 1, and the transmission plate 9 is fixed on the outer cylinder. The mover assembly and the transmission plate 9 are fixedly connected through at least one point. The magnet coil assembly structure includes a coil 3, a permanent magnet 5, and a first magnetic conductor 4. The magnetic conductor assembly structure includes a second magnetic conductor 8. The magnet coil assembly structure also includes a first magnetic ring 2. The magnetic conductor assembly structure also includes a yoke 6. The mover assembly is simultaneously subjected to electromagnetic forces of two pairs of push and pull forces, exhibiting a push-pull structural feature.

[0181] There are two coils 3 and three permanent magnets 5. The polarities of the two opposite end faces of adjacent permanent magnets 5 are the same. The current directions in adjacent coils 3 are opposite. The electromagnetic field polarities of the two adjacent end faces of two adjacent coils 3 are the same. There are two vibration transducers 9, which are fixed to the top and bottom surfaces of the outer cylinder 1, respectively. The two ends of the second magnetic conductor 8 are fixed to the vibration transducers 9, and the yoke 6 is fixed to the upper part of the second magnetic conductor 8. The first magnetic conductor 4 is fixed to the middle of the inner wall of the outer cylinder 1. Coils 3 are fixed on both sides of the outer cylinder 4, and a first magnetic ring 2 is fixed on the outer side of each coil 3. Both the coil 3 and the first magnetic ring 2 are fixed on the inner wall of the outer cylinder 1. Three permanent magnets 5 are fixed on the first magnetic ring 2 and the first magnetic body 4, respectively. The moving iron assembly and the stator assembly are arranged in an alternating concave-convex interlocking shape. The closed curve of the main magnetic force line of the coil 3 and the closed curve of the main magnetic force line of the permanent magnet 5 alternately pass through the moving iron assembly and the stator assembly, respectively. The moving iron type oscillator body has two symmetrically designed magnetic domains D inside. 1，1 and D 2，1 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 respectively cross the magnetic domain D. 1，1 and D 2，1 In the magnetic domain D 1，1 In the coil, the direction of the magnetic field lines is opposite to that of the permanent magnet, while in the magnetic domain D...2，1 In the coil, the direction of the magnetic field lines is the same as that of the permanent magnet, and for each pair of magnetic domains D... i The electromagnetic force F on the moving part l，i and F 2，i The forces acting along the direction of vibration are opposite in direction, therefore their resultant forces ∑ i F 1，i and the combined force ∑ i F 2，i The forces acting along the direction of vibration are also opposite in direction. This combination of pushing and pulling forces forms a push-pull design, and in the final resultant force ∑ i (F 1，i +F 2，i In the process, the total resultant force is reduced by partially or completely canceling out the nonlinear term of the current. The stiffness coefficient k2 of the vibration transmission plate 8 is m1, m2, ω. t The function, i.e., k = f(m1, m2, ω t ), where m1=m1=m shell +m 磁铁线圈组件 m2=m 铁芯组件 ω t The target resonant frequency,

[0182] from Figures 19-20 The force analysis of the moving part also shows that, as can be seen from the above, for each magnetic domain, the force analysis of the moving part can be performed on D. j =(D 1，j D 2，j The two forces acting on the moving component, F 1，j and F 2，j It has the following characteristics:

[0183] 1)F 1，j and F 2，j The direction of the force is along the Z-axis, which is the direction of vibration.

[0184] 2)F 1，j and F 2，j As vectors, forces have opposite directions. F 1，j When the direction of the force is positive (for example, if we define the right side as positive), F 2，j The direction of the force is exactly negative. The converse is also true, i.e., F... 1，j When the direction of the force is negative, F 2，j The direction of the force is exactly positive.

[0185] 3)F 1，j and F 2，jThe characteristic of forces occurring in pairs and with related directions means that the moving component being acted upon is simultaneously subjected to a thrust and a pull. This type of force distribution is called a push-pull force structure, and the corresponding design is called a push-pull design.

[0186] F 1，j and F 2，j Appearing in pairs, each F 1，j and F 2，j The resultant force ∑F formed by each 1，j and ∑F 2，j Between them, there must be a pushing force and a pulling force, with the resultant force ∑F 1，j and ∑F 2，j It is also a push-pull type of force-bearing structure.

[0187] The derivation process of nonlinear term cancellation in Example 4 is the same as that in Example 1, and will not be repeated here.

[0188] Example 5

[0189] The permanent magnets described in the parallel push-pull type nonlinear term cancellation moving iron oscillators of Examples 1-4, or the magnets can be replaced with magnetic components, and the coils can be replaced with coil components, are also within the protection scope of this patent.

[0190] A magnetic component: The overall magnetic field formed by a single magnet or a combination of multiple magnets (n>1) is equivalent to that of a single magnet. The magnetic field generated by the magnets in this combination is in the same direction as a dominant magnetic field (if the magnetic field strengths of the multiple magnets differ significantly, their magnetic field directions may be opposite, but the overall magnetic field direction is the same as the dominant magnetic field direction), thus the overall magnetic field generated can be considered equivalent to that produced by a single magnetic component. Magnets are typically connected by a rigid or flexible structural component (between magnets, at the edge of magnets, or around magnets), or even without a structural component, by means of bonding, welding, embedding, screws, screws, riveting, pins, clips, clamps, brackets, sleeves, caps, or other methods.

[0191] Coil assembly: The overall magnetic field generated by a single coil or an assembly of multiple coils (n turns > 1) is equivalent to the magnetic field generated by a single coil. The magnetic field generated by the coils in the assembly is in the same direction as the magnetic field generated by a dominant coil (if the magnetic field strengths of the multiple coils differ significantly, their directions may be opposite, but the overall magnetic field direction is the same as that of the dominant coil). Therefore, the overall magnetic field generated can be considered equivalent to the current generated in a single coil assembly. Coils are typically connected by a rigid or flexible structural component (between coils, at the edge of coils, or around coils), or even without a structural component, by bonding, welding, embedding, screws, screws, riveting, pins, clips, clamps, brackets, sleeves, caps, or other means.

[0192] To describe the magnet and coil components in detail, the following embodiments are provided for specific description.

[0193] The magnet 201 is used in the following embodiments;

[0194] Example 1 of magnet component 201:

[0195] Reference Figure 27 As shown; permanent magnets are connected in series in the direction of the magnetic field, with no structural components in between, and n_magnet = 2;

[0196] Permanent magnet 1 and permanent magnet 2 are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0197] Example 2 of magnet 201:

[0198] Reference Figure 28 As shown; permanent magnets are connected in series in the direction of the magnetic field, with no structural components in between, and n_magnet = 3;

[0199] Permanent magnets 1, 2, and 3 are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other means. The magnetic fields generated by permanent magnets 1, 2, and 3 are all oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnets 1, 2, and 3, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) to a single magnet on the right. The combination of permanent magnets 1, 2, and 3 can be considered as a single magnet component 201.

[0200] Embodiment 3 of magnet 201:

[0201] Reference Figure 29 As shown; permanent magnets are connected in series in the direction of the magnetic field, with a structural component in the middle, n_magnetic = 2;

[0202] A magnetic conductor is placed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the magnetic conductor, as well as permanent magnet 2 and the magnetic conductor, are connected by adhesive, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered equivalent (indicated by the "=" sign in the diagram) to the single magnet on the right. The combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2 can be considered as a single magnet component 201.

[0203] The magnetic conductor mentioned above can also be replaced with a non-magnetic conductor, or a magnet with a much weaker magnetic field strength but in the opposite direction. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this situation also includes this type.

[0204] Example 4 of magnet 201:

[0205] Reference Figure 30 As shown; permanent magnets are connected in series in the direction of the magnetic field, with no structural components in between, and n_magnet = 2;

[0206] Permanent magnet 1 and permanent magnet 2, with permanent magnet 1 being larger and permanent magnet 2 being smaller, are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) to a single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0207] Example 5 of magnet 201:

[0208] Reference Figure 31 As shown; permanent magnets are connected in series in the direction of the magnetic field, with a structural component in the middle, n_magnetic = 2;

[0209] Permanent magnet 1 and permanent magnet 2, with permanent magnet 1 being larger and permanent magnet 2 being smaller, are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) to a single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0210] Example 6 of magnet 201:

[0211] Reference Figure 32 As shown; permanent magnets are combined in parallel along the magnetic field direction, with no structural components in between, and n_magnet = 2;

[0212] Permanent magnet 1 and permanent magnet 2 are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0213] Embodiment 7 of magnet 201:

[0214] Reference Figure 33 As shown; permanent magnets are combined in parallel along the magnetic field direction, with no structural components in between, and n_magnet = 3;

[0215] Permanent magnets 1, 2, and 3 are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other means. The magnetic fields generated by permanent magnets 1, 2, and 3 are all oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnets 1, 2, and 3, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) to a single magnet on the right. The combination of permanent magnets 1, 2, and 3 can be considered as a single magnet component 201.

[0216] Example 8 of magnet 201:

[0217] Reference Figure 34 As shown; permanent magnets are combined in series and parallel in the direction of the magnetic field, with no structural components in between, and n_magnet = 3;

[0218] Permanent magnets 1, 2, and 3, and magnetic plates 1 and 2 are connected by bonding, welding, riveting, pins, grippers, brackets, sleeves, or other means. The magnetic fields generated by permanent magnets 1, 2, and 3 are all oriented towards the Y+ axis. The magnetic fields of magnetic plates 1 and 2 after magnetization are also oriented towards the Y+ axis, so all directions are the same. Therefore, the combination of permanent magnets 1, 2, and 3, and magnetic plates 1 and 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnets 1, 2, and 3, and magnetic plates 1 and 2 can be considered as a single magnet component 201.

[0219] The magnetic plate on top can also be replaced with a non-magnetic plate, or a magnet with a much weaker magnetic field strength but in the opposite direction. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this situation also includes this type.

[0220] Example 9 of magnet 201:

[0221] Reference Figure 35 As shown; permanent magnets are combined in parallel along the magnetic field direction, with a structural component in between, n_magnetic = 2;

[0222] A magnetic conductor is placed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the magnetic conductor, as well as permanent magnet 2 and the magnetic conductor, are connected by adhesive, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered equivalent (indicated by the "=" sign in the diagram) to the single magnet on the right. The combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2 can be considered as a single magnet component 201.

[0223] The magnetic plate on top can also be replaced with a non-magnetic material, or a magnet with a much weaker magnetic field strength but in the opposite direction. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this type of situation also applies.

[0224] Example 10 of magnet 201:

[0225] Reference Figure 36 As shown; permanent magnets are combined in parallel along the magnetic field direction, with no structural components in between, and n_magnet = 2;

[0226] Permanent magnet 1 and permanent magnet 2 are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0227] Example 11 of magnet component 201:

[0228] Reference Figure 37 As shown; permanent magnets are combined in parallel along the magnetic field direction, with a structural component in between, n_magnetic = 2;

[0229] A magnetic conductor is placed between permanent magnet 1 and permanent magnet 2. Permanent magnet 1 and the magnetic conductor, as well as permanent magnet 2 and the magnetic conductor, are connected by adhesive, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered equivalent (indicated by the "=" sign in the diagram) to the single magnet on the right. The combination of permanent magnet 1, the magnetic conductor, and permanent magnet 2 can be considered as a single magnet component 201.

[0230] The magnetic plate on top can also be replaced with a non-magnetic material, or a magnet with a much weaker magnetic field strength but in the opposite direction. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this type of situation also applies.

[0231] Example 12 of magnet component 201:

[0232] Reference Figure 38 As shown; permanent magnets are combined in parallel along the magnetic field direction, with no structural components in between, and n_magnet = 2;

[0233] Permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (cylindrical, cylindrical, square prism, rectangular prism, etc.) are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0234] Example 13 of magnet component 201:

[0235] Reference Figure 39 As shown; permanent magnets are combined in parallel along the magnetic field direction, with a structural component in between, n_magnetic = 2;

[0236] A magnetically conductive ring 104 separates permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (cylindrical, cylindrical, square prism, rectangular prism, etc.). Permanent magnet 1 and the magnetically conductive ring, as well as permanent magnet 2 and the magnetically conductive ring, are connected by adhesive, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the combination of permanent magnet 1, the magnetically conductive ring, and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered equivalent (indicated by the "=" sign in the diagram) to the single magnet on the right. The combination of permanent magnet 1, the magnetically conductive ring, and permanent magnet 2 can be considered as a single magnetic component 201.

[0237] The magnetic ring above can also be replaced with a non-magnetic ring, or a reverse magnetic ring with a much weaker magnetic field strength. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this situation also includes this type.

[0238] Example 14 of magnet component 201:

[0239] Reference Figure 40 As shown; permanent magnets are combined in parallel along the magnetic field direction, with no structural components in between, and n_magnetic = 2;

[0240] Permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (ring, cylindrical, square prism, rectangular prism, etc.) are connected by bonding, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y+ axis and have the same direction. Therefore, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the figure) to the single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnetic component 201. The core component in the figure can be air, a non-magnetic material, or a weakly magnetic material, such as a weakly magnetic pin.

[0241] Example 15 of magnet component 201:

[0242] Reference Figure 41 As shown; permanent magnets are combined in parallel along the magnetic field direction, with a structural component in between, n_magnetic = 2;

[0243] A magnetically conductive ring 104 separates permanent magnet 1 (ring, circular ring, square ring, rectangular ring, etc.) and permanent magnet 2 (cylindrical, cylindrical, square prism, rectangular prism, etc.). Permanent magnet 1 and the magnetically conductive ring, as well as permanent magnet 2 and the magnetically conductive ring, are connected by adhesive, welding, riveting, pins, clamps, brackets, sleeves, or other methods. The magnetic fields generated by permanent magnet 1 and permanent magnet 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the combination of permanent magnet 1, the magnetically conductive ring, and permanent magnet 2, from the perspective of the overall external magnetic field direction, can be considered equivalent (indicated by the "=" sign in the diagram) to the single magnet on the right. The combination of permanent magnet 1, the magnetically conductive ring, and permanent magnet 2 can be considered as a single magnetic component 201.

[0244] The magnetic connecting ring above can also be replaced with a non-magnetic ring, or a reverse magnetic ring with a much weaker magnetic field strength. This will not affect the overall structure and can still be considered as a single permanent magnet. Therefore, this situation also includes this type.

[0245] Example sixteen of magnet component 201:

[0246] Reference Figure 42 As shown; permanent magnets are combined in series and parallel in the direction of the magnetic field, with no structural components in between, and n_magnet = 5;

[0247] Permanent magnets 1, 2, and 3 are connected in parallel by bonding, welding, riveting, pins, clamps, 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 then connected in series with 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 magnet 4, and permanent magnet 5 are all oriented towards the Y+ axis, hence their directions are the same. Therefore, the magnet assembly (magnet 4-(magnet 1|magnet 2|magnet 3)-magnet 5), from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) a single magnet on the right. The magnet assembly (magnet 4-(magnet 1|magnet 2|magnet 3)-magnet 5) can be considered as a single magnet component 201.

[0248] Example 17 of magnet component 201:

[0249] Reference Figure 43 As shown; permanent magnets are combined in series and parallel in the direction of the magnetic field, with no structural components in between, and n_magnet = 5;

[0250] Permanent magnets 1, 2, and 3 are connected in series by bonding, welding, riveting, pins, clamps, 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 then connected in parallel with 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 magnet 5 are all oriented towards the Y+ axis, hence their directions are the same. Therefore, the magnet combination (Magnet 4|(Magnet 1-Magnet 2-Magnet 3)|Magnet 5), from the perspective of the overall external magnetic field direction, can be considered similar to (indicated by the "=" sign in the diagram) a single magnet on the right. The magnet combination (Magnet 4|(Magnet 1-Magnet 2-Magnet 3)|Magnet 5) can be considered as a single magnet component 201.

[0251] Example 18 of magnet component 201:

[0252] Reference Figure 43a As shown; permanent magnets are connected in series along the magnetic field direction, with no structural components in between, n_magnetic = 2.

[0253] Permanent magnet 1 and permanent magnet 2, with permanent magnet 1 being larger and permanent magnet 2 being smaller, are connected by bonding, welding, embedding, screws, screws, riveting, pins, clips, grippers, brackets, sleeves, caps, or other means. The magnetic field direction of permanent magnet 1 is towards the Y+ axis, and the magnetic field direction of permanent magnet 2 is towards the Y- axis. However, because the magnetic field strength of permanent magnet 2 is less than that of permanent magnet 1, the combination of permanent magnet 1 and permanent magnet 2, from the perspective of the overall external magnetic field direction, can still be considered similar to (indicated by the "=" sign in the figure) to a single magnet on the right. The combination of permanent magnet 1 and permanent magnet 2 can be considered as a single magnet component 201.

[0254] The coil component 102 is used in the following embodiments;

[0255] Embodiment 1 of coil component 102:

[0256] Reference Figure 44 As shown; coils are connected in series in the direction of the magnetic field, with no structural components in between, n turns = 2;

[0257] Coil 1 and coil 2 are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1 and coil 2 can be viewed from the outside as similar to (indicated by the "=" sign in the figure) to the single coil on the right. The combination of coil 1 and coil 2 can be considered as a single coil component 102.

[0258] In the above embodiment, whether or not there is an iron core in the middle of the coil has no effect on the direction of the magnetic field generated by the coil current. Therefore, it does not affect the conclusion that the two coils above are connected in series to form a coil component 102.

[0259] In the diagram below, the coil current is indicated by a circle and a cross icon, following the standard coil current marking method. The circle icon (⊙) indicates that the current flows vertically inwards from the screen, while the dotted icon (⊙) indicates that the current flows vertically outwards from the screen.

[0260] Embodiment 2 of coil component 102:

[0261] Reference Figure 45 As shown; coils are connected in series in the direction of the magnetic field, with a sleeve around the perimeter, n turns = 2;

[0262] Coil 1 and coil 2 are connected by a sleeve (preferably made of a magnetically conductive material, but can also be made of a weakly magnetically conductive material, a non-magnetically conductive material, etc.). The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1 and coil 2 can be viewed from the outside as being similar to (indicated by the "=" sign in the figure) to the single coil on the right. The combination of coil 1 and coil 2 can be considered as a single coil component 102.

[0263] Embodiment 3 of coil component 102:

[0264] Reference Figure 46 As shown; coils are connected in series in the direction of the magnetic field, with no structural components in between, n turns = 3;

[0265] Coil 1, coil 2, and coil 3 are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coils 1, 2, and 3 are all oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coils 1, 2, and 3 can be viewed from the outside as being similar to (indicated by the "=" sign in the diagram) to the single coil on the right. The combination of coils 1, 2, and 3 can be considered as a single coil component 102.

[0266] Embodiment 4 of coil component 102:

[0267] Reference Figure 47 As shown; coils are connected in series in the direction of the magnetic field, with a structural component in the middle, n turns = 2;

[0268] A magnetic conductor is placed between coil 1 and coil 2. Coil 1 and the magnetic ring 104, as well as coil 2 and the magnetic ring 104, are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1, magnetic ring 104, and coil 2, viewed from the outside, can be considered equivalent (indicated by the "=" sign in the figure) to the single coil on the right. The combination of coil 1, magnetic ring 104, and coil 2 can be considered as a single coil component 102.

[0269] The magnetic ring above can also be replaced with a non-magnetic ring, or a coil with a much smaller induced magnetic field strength in the opposite direction. This does not affect the overall structure and can still be considered as a single coil. Therefore, this situation also includes this type.

[0270] Embodiment 5 of coil component 102:

[0271] Reference Figure 48 As shown; coils are connected in series in the direction of the magnetic field, with no structural components in between, n turns = 2;

[0272] Coil 1 and coil 2, with coil 1 being larger and coil 2 smaller, are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coils 1 and 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coils 1 and 2 can be viewed externally as equivalent to the single coil on the right (indicated by the "=" sign in the diagram). The combination of coils 1 and 2 can be considered as a single coil component 102.

[0273] Embodiment Six of Coil Component 102:

[0274] Reference Figure 49 As shown; coils are connected in series in the direction of the magnetic field, with a structural component in the middle, n turns = 2;

[0275] Coil 1 and coil 2, with coil 1 being larger and coil 2 smaller, are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coils 1 and 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coils 1 and 2 can be viewed externally as equivalent to the single coil on the right (indicated by the "=" sign in the diagram). The combination of coils 1 and 2 can be considered as a single coil component 102.

[0276] The magnetic ring above can also be replaced with a non-magnetic ring, or a coil with a much smaller induced magnetic field strength in the opposite direction. This does not affect the overall structure and can still be considered as a single coil. Therefore, this situation also includes this type.

[0277] Embodiment 7 of coil component 102:

[0278] Reference Figure 50 As shown; coils are connected in parallel in the direction of the magnetic field, with no structural components in between, n turns = 2;

[0279] Coil 1 (outer coil) and coil 2 (inner coil) are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1 and coil 2 can be viewed from the outside as similar to (indicated by the "=" sign in the diagram) to the single coil on the right. The combination of coil 1 and coil 2 can be considered as a single coil component 102.

[0280] Embodiment 8 of coil component 102:

[0281] Reference Figure 51 As shown; coils are connected in parallel in the direction of the magnetic field, with no structural components in between, n turns = 2;

[0282] Coil 1 (outer coil) and coil 2 (inner coil) are connected to the iron core by bonding, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1, coil 2, and the iron core can be viewed from the outside as similar to (indicated by the "=" sign in the diagram) to the single coil on the right. The combination of coil 1, coil 2, and the iron core can be considered as a single coil component 102.

[0283] Embodiment Nine of Coil Component 102:

[0284] Reference Figure 52 As shown; coils are connected in parallel in the direction of the magnetic field, with no structural components in between, n turns = 3;

[0285] Coil 1, coil 2, and coil 3 are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coils 1, 2, and 3 are all oriented towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coils 1, 2, and 3 can be viewed from the outside as being similar to (indicated by the "=" sign in the diagram) to the single coil on the right. The combination of coils 1, 2, and 3 can be considered as a single coil component 102.

[0286] Embodiment 10 of coil component 102:

[0287] Reference Figure 53As shown; coils and coils are combined in parallel in the direction of the magnetic field, with no structural components in between, n turns = 3;

[0288] Coils 1, 2, and 3, and magnetic plates 1 and 2 are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other means. The magnetic fields generated by coils 1, 2, and 3 are all oriented towards the Y+ axis. The magnetic fields of magnetic plates 1 and 2 after magnetization are also oriented towards the Y+ axis, hence all directions are the same. Therefore, the overall magnetic field generated by the combination of coils 1, 2, and 3, and magnetic plates 1 and 2 can be externally considered equivalent to the single coil on the right (indicated by the "=" sign in the figure). The combination of coils 1, 2, and 3, and magnetic plates 1 and 2 can be considered as a single coil component 102.

[0289] The magnetic plate on top can also be replaced with a non-magnetic plate, or a magnet with a much weaker magnetic field strength but in the opposite direction. This will not affect the overall structure and can still be considered as a single coil. Therefore, this type of situation also applies.

[0290] Example 11 of coil component 102:

[0291] Reference Figure 54 As shown; coils are connected in parallel in the direction of the magnetic field, with a structural component in the middle, n turns = 2;

[0292] A spacer ring (preferably made of a magnetically conductive material, but can also be made of a weakly magnetically conductive material or a non-magnetically conductive material) separates coil 1 and coil 2. Coil 1 and the spacer ring, as well as coil 2 and the spacer ring, are connected by adhesive, brackets, sleeves, riveting, clamps, welding, or other methods. The magnetic fields generated by coil 1 and coil 2 are both oriented towards the Y-axis + direction, hence they are in the same direction. Therefore, the overall magnetic field generated by the combination of coil 1, the spacer ring, and coil 2 can be externally considered equivalent to (indicated by the "=" sign in the figure) to the single coil on the right. The combination of coil 1, the magnetic conductor, and coil 2 can be considered as a single coil component 102.

[0293] Embodiment Twelve of Coil Component 102:

[0294] Reference Figure 55 As shown; coils are combined in series and parallel in the direction of the magnetic field, with no structural components in between, n turns = 4;

[0295] Coil 1 and coil 2 are connected in parallel by bonding, brackets, sleeves, riveting, clamps, welding, or other methods to form an equivalent coil (coil 1|coil 2). This equivalent coil (coil 1|coil 2) is then connected in series with coils 3 and 4 to form an equivalent coil (coil 3-(coil 1|coil 2)-coil 4). The magnetic fields generated by the equivalent coil (coil 1|coil 2), coil 3, and coil 4 are all oriented towards the Y+ axis, hence their directions are the same. Therefore, the overall magnetic field direction generated by the coil combination (coil 3-(coil 1|coil 2)-coil 4) can be externally considered similar to (indicated by the "=" sign in the diagram) to the single coil on the right. The coil combination (coil 3-(coil 1|coil 2)-coil 4) can be considered as a single coil component 102.

[0296] Embodiment Thirteen of Coil Component 102:

[0297] Reference Figure 56 As shown; coils are combined in series and parallel in the direction of the magnetic field, with no structural components in between, n turns = 4;

[0298] Coils 1, 2, and 3 are connected in series using bonding, brackets, sleeves, riveting, clamps, welding, or other methods to form an equivalent coil (coil 1-coil 2-coil 3). This equivalent coil (coil 1-coil 2-coil 3) is then connected in parallel with coil 4 to form an equivalent coil ((coil 1-coil 2-coil 3)|coil 4). The magnetic fields generated by both the equivalent coil (coil 1-coil 2-coil 3) and coil 4 are directed towards the Y+ axis, hence they are in the same direction. Therefore, the overall magnetic field direction generated by the coil combination ((coil 1-coil 2-coil 3)|coil 4) can be externally considered equivalent to (indicated by the "=" sign in the diagram) to the single coil on the right. The coil combination ((coil 1-coil 2-coil 3)|coil 4) can be considered as a single coil component 102.

[0299] Example 6

[0300] The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillators of the structures described in Examples 1-5 are 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, game headsets, game steering wheels, game 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, hearing aids, sleep aids, or haptic feedback network interconnection devices. When the aforementioned parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillators are used in the above products, they can convert electrical energy into mechanical energy, such as vibration or mechanical motion.

[0301] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation, characterized in that: The device includes a moving iron type oscillator body, which comprises an outer cylinder, a vibration transmission plate, a stator assembly, and a mover assembly. The stator assembly includes a magnet coil assembly structure, and the mover assembly includes a magnetic conductor assembly structure. The stator assembly is fixed inside the outer cylinder, and the vibration transmission plate is fixed on the outer cylinder. The mover assembly and the vibration transmission plate are fixedly connected through at least one point. Viewed from the center outward, the permanent magnet of the magnet coil assembly structure is inside, and the coil is outside. The mover assembly is simultaneously subjected to two pairs of pushing and pulling electromagnetic forces, exhibiting a push-pull structural characteristic.

2. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation as described in claim 1, characterized in that: The number of permanent magnets in the magnet coil combination structure is defined as N magnets, and the number of coils is defined as N turns, where N magnets > N turns or N magnets < N turns; N magnets is 1, 2, 3, ..., 100; N turns is 1, 2, 3, ..., 100.

3. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation as described in claim 1, characterized in that: The moving iron type oscillator body has 2N magnetic domains D with a pairwise symmetrical design inside. 1,i and D 2,i N is 1, 2, 3, ..., 100, i = 1, 2, 3, ...; the magnetic domain is a spatial region filled with electromagnetic energy, generally composed of air or a medium with low magnetic permeability (e.g., relative magnetic permeability < 1000), including the region where the magnet material is located; 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 respectively pass through the magnetic domain D. 1,i and D 2,i And in the magnetic domain D 1,i In the coil, the direction of the magnetic field lines is the same as that of the permanent magnet, while in the magnetic domain D... 2,i In the coil, the direction of the magnetic field lines is opposite to the direction of the magnetic field lines of the permanent magnet; or in the magnetic domain D 1,i In the coil, the direction of the magnetic field lines is opposite to the direction of the magnetic field lines of the permanent magnet, while in the magnetic domain D... 2,i In this configuration, the direction of the magnetic field lines of the coil is the same as the direction of the magnetic field lines of the permanent magnet.

4. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 1, characterized in that: For each pair of magnetic domains D i The electromagnetic force F on the moving part 1,i and F 2,i The forces acting along the direction of vibration are opposite in direction, therefore their resultant forces ∑ i F 1,i and the combined force ∑ i F 2,i The forces acting along the direction of vibration are also opposite in direction. This combination of pushing and pulling forces forms a push-pull design, and in the final resultant force ∑ i (F 1,i +F 2,i In the case of ), the total resultant force is reduced by partially or completely canceling out the nonlinear term of the current.

5. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 3, characterized in that: The stiffness coefficient k2 of the vibration transducer is m1, m2, ω t The function, i.e., k2=f(m1,m2,ω t ), where m1=m1=m shell +m 磁铁线圈组件 m2=m 铁芯组件 ω t The target resonant frequency.

6. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 5, characterized in that:

7. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 1, characterized in that: The magnet coil assembly structure includes a coil, a permanent magnet, and a first magnetic conductor, and the magnetic conductor assembly structure includes a second magnetic conductor.

8. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 1, characterized in that: The magnet in the magnet coil assembly structure includes a magnet element and a second magnetic conductor. The magnet element is a single magnet or a combination of multiple magnets (n magnets > 1) forming an overall magnetic field equivalent to a single magnet. The magnetic field formed by the magnets in the assembly is in the same direction as a dominant magnetic field (if the magnetic field strengths of the multiple magnets differ significantly, their magnetic field directions may be opposite, but the overall magnetic field direction is the same as the dominant magnetic field direction). Thus, the overall magnetic field generated can be considered equivalent to that of a single magnet element. Typically, the magnets are connected by a rigid or flexible structural component (between magnets, at the edge of magnets, or around magnets), or even without a structural component, by bonding, welding, embedding, screws, screws, riveting, pins, clips, claws, brackets, sleeves, caps, or other means.

9. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 1, characterized in that: The coil of the magnet coil assembly structure includes a coil component and a first magnetic conductor. The coil component is a single coil or an assembly of multiple coils (n turns > 1). The overall magnetic field generated is equivalent to the magnetic field generated by a single coil. The magnetic field generated by the coils in the assembly is in the same direction as the magnetic field generated by a dominant coil (if the magnetic field strengths of the multiple coils differ significantly, the directions of the magnetic fields generated by these coils can also be opposite, but the overall magnetic field direction is the same as the direction of the magnetic field generated by the dominant coil). Thus, the overall magnetic field generated can be considered equivalent to the current generated in a single coil component. Usually, the coils are connected by a rigid or flexible structural component (between the coils, at the edge of the coils, or around the coils), or even without a structural component, they are connected by bonding, welding, embedding, screws, screws, riveting, pins, buckles, claws, brackets, sleeves, caps, or other means.

10. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 2, characterized in that: The moving part and the stator part are arranged in an interlocking, concave-convex shape, and the closed curve of the main magnetic field line of the coil and the closed curve of the main magnetic field line of the permanent magnet alternately pass through the moving part and the stator part, respectively.

11. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 2, characterized in that: N 磁 =(N 圈 +1)*n; n is a natural number, n = 1, 2, 3…; when N 磁 When N > 1, the polarity of the two opposite end faces of the permanent magnet is the same; when N 圈 When the value is greater than 1, the current in adjacent coils is in the opposite direction, and the electromagnetic fields of two adjacent coils and their two adjacent end faces have the same polarity.

12. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 2, characterized in that: N 磁 =(N 圈 -1)*n; n is a natural number, n = 1, 2, 3…; when N 磁 When N > 1, the polarity of the two opposite end faces of the permanent magnet is the same; when N 圈 When the value is greater than 1, the current in adjacent coils is in the opposite direction, and the electromagnetic fields of two adjacent coils and their two adjacent end faces have the same polarity.

13. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 4, characterized in that: A magnetic conductor is used near the outer cylinder of the coil to minimize the magnetic resistance of the magnetic circuit that forms the electromagnet; the permanent magnets in the magnet assembly are isolated from each other by a magnetic conductor; a yoke is used around the coil and the permanent magnets, or a magnetic outer cylinder is used for the coil assembly and the outer cylinder near the coil.

14. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 12, characterized in that: The magnet coil assembly structure further includes a first magnetic ring, and the magnetic conductor assembly structure further includes a second magnetic ring. There is one permanent magnet and two coils with opposite current directions. The permanent magnet and the first magnetic ring are tightly bonded and fixed together. Two vibration transducers are provided, fixed to the top and bottom surfaces of the outer cylinder respectively. The second magnetic ring is fixed to the second magnetic conductor, with both ends of the second magnetic conductor fixed to the vibration transducers. The first magnetic conductor is fixed to the middle of the inner wall of the outer cylinder. The two coils are fixed to both sides of the first magnetic conductor, and the first magnetic ring is fixed to the outer sides of the two coils. Both the coils and the first magnetic ring are fixed to the inner wall of the outer cylinder. The mover assembly and the stator assembly are arranged in an alternating, interlocking shape. The closed curves of the main magnetic lines of force of the coils and the closed curves of the main magnetic lines of force of the permanent magnet alternately pass through the mover assembly and the stator assembly. The moving iron type oscillator body has two symmetrically designed magnetic domains D inside. 1,1 and D 2,1 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 respectively traverse the magnetic domain D. 1,1 and D 2,1 And in the magnetic domain D 1,1 In the coil, the direction of the magnetic field lines is opposite to the direction of the magnetic field lines of the permanent magnet, while in the magnetic domain D... 2,1 In this configuration, the direction of the magnetic field lines of the coil is the same as the direction of the magnetic field lines of the permanent magnet.

15. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 11, characterized in that: The magnet coil assembly structure further includes a first magnetic ring, and the magnetic conductor assembly structure further includes a second magnetic ring. There is one coil and two permanent magnets. The polarities of the two opposite end faces of the permanent magnets are the same. Two vibration transducers are provided, fixed to the top and bottom surfaces of the outer cylinder respectively. The two ends of the second magnetic conductor are fixed to the vibration transducers, and the second magnetic ring is fixed to the second magnetic conductor. The coil and the first magnetic conductor are tightly bonded and fixed to each other. The permanent magnets are fixedly arranged on both sides of the first magnetic conductor. The first magnetic ring is fixed to the outer side of the two permanent magnets and is fixed to the middle of the inner wall of the outer cylinder. Both permanent magnets and the first magnetic ring are fixed to the inner wall of the outer cylinder. The mover assembly and the stator assembly are arranged in an alternating, interlocking shape. The closed curves of the main magnetic lines of force of the coil and the main magnetic lines of force of the permanent magnet alternately pass through the mover assembly and the stator assembly. The moving iron type oscillator body has two symmetrically designed magnetic domains D inside. 1,1 and D 2,1 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 respectively traverse the magnetic domain D. 1,1 and D 2,1 In the magnetic domain D 1,1 In the coil, the direction of the magnetic field lines is opposite to the direction of the magnetic field lines of the permanent magnet, while in the magnetic domain D... 2,1 In this configuration, the direction of the magnetic field lines of the coil is the same as the direction of the magnetic field lines of the permanent magnet.

16. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 12, characterized in that: The magnet coil assembly structure further includes a first magnetic ring, and the magnetic conductor assembly structure further includes a second magnetic ring. There are two permanent magnets and three coils. The polarities of the two opposite end faces of adjacent permanent magnets are the same, the current directions in adjacent coils are opposite, and the electromagnetic field polarities of the two adjacent end faces of two adjacent coils are the same. Two vibration transducers are provided, fixed to the top and bottom surfaces of the outer cylinder respectively. The two ends of the second magnetic conductor are fixed to the vibration transducers, and the second magnetic ring is fixed to the middle of the second magnetic conductor. The three coils are fixed to the inner wall of the outer cylinder, and the first magnetic ring is fixed to both sides of each coil. The two permanent magnets are tightly bonded to the first magnetic ring, which is distributed and fixed to both ends of the inner wall of the outer cylinder. The mover assembly and the stator assembly are arranged in an alternating concave-convex interlocking pattern. The closed curves of the main magnetic lines of force of the coils and the closed curves of the main magnetic lines of force of the permanent magnets alternately pass through the mover assembly and the stator assembly. The moving iron type oscillator body has six symmetrically designed magnetic domains D inside. 1,1 D 2,1 D 1,2 D 2,2 D 1,3 D 2,3 Among them, magnetic domain D 1,1 With D 2,1 Symmetry, magnetic domain D 1,2 and D 2,2 Symmetry, D 1,3 and D 2,3 Symmetrical, 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 respectively pass through the magnetic domain D. 1,1 D 2,1 D 1,2 D 2,2 D 1,3 and D 2,3 .

17. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 11, characterized in that: The magnet coil assembly structure further includes a first magnetic ring, and the magnetic conductor assembly structure further includes a yoke. There are two coils and three permanent magnets. The polarities of the two opposite end faces of adjacent permanent magnets are the same. The current directions in adjacent coils are opposite, and the electromagnetic field polarities of the two adjacent end faces of two adjacent coils are the same. Two vibration transducers are provided, and the two vibration transducers are respectively fixed to the top and bottom surfaces of the outer cylinder. The two ends of the second magnetic conductor are respectively fixed to the vibration transducers. The yoke is fixed to the upper part of the second magnetic conductor, and the first magnetic conductor is fixed to the... In the middle of the inner wall of the outer cylinder, the coils are fixed on both sides of the first magnetic conductor, and the first magnetic ring is fixed on the outer side of each coil. The coils and the first magnetic rings are fixed to the inner wall of the outer cylinder. Three permanent magnets are fixed to the first magnetic rings and the first magnetic conductor, respectively. The moving iron assembly and the stator assembly are arranged in an alternating concave-convex interlocking shape. The closed curves of the main magnetic lines of force of the coils and the closed curves of the main magnetic lines of force of the permanent magnets alternately pass through the moving iron assembly and the stator assembly, respectively. The moving iron type oscillator body has two symmetrically designed magnetic domains D inside. 1,1 and D 2,1 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 respectively traverse the magnetic domain D. 1,1 and D 2,1 In the magnetic domain D 1,1 In the coil, the direction of the magnetic field lines is opposite to the direction of the magnetic field lines of the permanent magnet, while in the magnetic domain D... 2,1 In this configuration, the direction of the magnetic field lines of the coil is the same as the direction of the magnetic field lines of the permanent magnet.

18. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 5, characterized in that... The stiffness coefficient k2 of the vibration transducer and They are monotonically positively correlated, where ω t It is the target resonant frequency of the oscillation.

19. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 5, characterized in that: The stiffness coefficient k2 of the vibration transducer and They are linearly positively correlated.

20. The parallel-connected ferromagnetic coil push-pull nonlinear cancelling moving iron oscillator according to claim 5, characterized in that: The stiffness coefficients k2, m1, and m2 of the vibration transducer are monotonically positively correlated.

21. The moving iron oscillator with parallel ferromagnetic coils and push-pull nonlinear cancellation according to claim 5, characterized in that: The stiffness coefficients k2, m1(g, gram) and m2(g, gram) of the vibration transducer are monotonically positively correlated.

22. The application of the parallel-type push-pull nonlinear cancelling moving iron oscillator with ferromagnetic coils according to any one of claims 1-21, characterized in that: The ferromagnetic coil parallel push-pull nonlinear cancelling moving iron oscillator with the above structure 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, touch screens, 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, hearing aids, sleep aids, or haptic feedback network interconnection devices.

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