Straight staggered push-pull oscillator and application thereof

Abstract

The invention relates to the technical field of vibrators, in particular to a straight staggered push-pull vibrator and application thereof, and the vibrator is at least composed of a stator assembly, a rotor assembly and an elastic piece. For the single-action vibrator, a straight line can be drawn in an area between the stator assembly and the rotor assembly on a cross section penetrating through the axis, so that the stator assembly and the rotor assembly can be divided without hindrance; for the double-acting vibrator, a straight line can be drawn in an area between the first mover assembly and the second mover assembly on the cross section penetrating through the axis to divide the first mover assembly and the second mover assembly without hindrance; 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. The component force of the electromagnetic force of the thrust and the tensile force borne by the rotor assembly in the vibration direction and the vibration direction are Z-axis, and the push-pull type structural characteristic is also presented, so that the defects of the concave-convex staggered vibrator structure design are effectively avoided, the problem of attraction between the rotor assembly and the stator assembly is prevented, the vibrator performance is ensured, and the vibrator failure is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of oscillators, and more specifically, to a flat interleaved push-pull oscillator and its application. Background Art

[0002] A bone conduction headphone oscillator is a special type of oscillator that is used to transmit sound through bones rather than through the air. It utilizes bone conduction technology to directly transmit sound vibrations to the auditory system.

[0003] An oscillator is a device that can convert electrical energy into mechanical vibrations. An oscillator consists of a stator assembly and a rotor assembly. After the power supply is connected or an electrical signal is input, the rotor assembly can perform cyclic mechanical vibrations in a certain direction under the action of force and the traction of the spring branches; according to different input electrical signals, the vibrations can generate different resonance frequencies or vibration sensations. The oscillator has a fast response speed, a strong vibration sensation, and the vibrations have directionality and directivity; the frequency and waveform of the vibrations are adjustable, so that more complex and various customized vibration effects can be achieved.

[0004] Haptic Feedback technology is a technology that enables users to perceive virtual environments or device feedback through touch. This technology has a wide range of applications in fields such as virtual reality (VR), augmented reality (AR), game controllers, medical simulation devices, and smartphones. Haptic feedback transmits information to users through vibrations, pressure, temperature changes, etc., so that they can obtain a more realistic interaction experience.

[0005] Oscillators are used in the fields of audio audition and haptic feedback, and users can experience different audio effects and vibration sensations according to different scene applications.

[0006] The existing solutions are as follows: Vibration motor-driven haptic feedback: ERM (eccentric rotating mass) is a device that generates vibrations by rotating an eccentric mass. When an electric current passes through the vibration motor, the motor drives the eccentric mass to rotate, generating a centrifugal force, thereby causing vibrations. By controlling the frequency and amplitude of the electric current, the intensity and frequency of the vibrations can be adjusted. It is generally used in mobile phones, smart watches, or game controllers, and is used for vibration reminders when receiving calls or messages, and vibrations are used to simulate impacts or gunshots during games to enhance the immersion of the games.

[0007] Piezoelectric actuator: The piezoelectric actuator works based on the piezoelectric effect. When an electric field is applied, the piezoelectric material will generate mechanical deformation (expansion or bending), thereby generating vibrations. By adjusting the frequency and amplitude of the applied voltage, the vibration characteristics of the piezoelectric actuator can be controlled. It is generally used in touch screen devices or other wearable devices to simulate effects such as button clicks and swipes using vibrations.

[0008] Linear Resonant Actuator (LRA): Uses an internal resonant mass and spring system to generate vibrations. The internal mass block is driven to vibrate within a fixed frequency range through linear motion. When the applied electrical signal is consistent with its resonant frequency, the LRA can work at the highest efficiency and produce a strong and clear vibration effect. It is generally used in game controllers, high-end headphones and earphones, and portable audio equipment.

[0009] The problems with the existing solutions are as follows: The concave-convex staggered vibrator structure design makes it easy for the rotor assembly and the stator assembly to attract each other, which affects the performance of the vibrator and may even cause the vibrator to fail in severe cases.

[0010] Figure 29 It is a push-pull vibrator design with staggered concave and convex shapes, in which the upper magnetic guide disk is subjected to the downward Maxwell suction F1 of the yoke, and the lower magnetic guide disk is subjected to the upward Maxwell suction F2 of the yoke. When the yoke is at the same distance from the upper and lower magnetic guide disks, F1 and F2 are in opposite directions and have similar amplitudes. Therefore, the rebound force of the shrapnel is greater than the difference between F1 and F2, and the mover part will return to the normal equilibrium position.

[0011] When the mover assembly moves downward, the distance between the yoke and the upper magnetic guide disk decreases, and the distance between the yoke and the lower magnetic guide disk increases. The Maxwell suction between the yoke and the upper and lower magnetic guide disks is inversely proportional to the square of the distance between the yoke and them. Therefore, the Maxwell suction F1 between the yoke and the upper magnetic guide disk increases as the distance decreases. For example, when it decreases to half the distance in the equilibrium state, F1 increases to 4 times the distance in the equilibrium state. In addition, the Maxwell suction F2 between the yoke and the lower magnetic guide disk decreases as the distance increases. For example, when it increases to twice the distance in the equilibrium state, F1 decreases to 1 / 4 of the distance in the equilibrium state. At this time, the difference between F1 and F2 becomes very large, exceeding the resilience of the shrapnel, so the upper magnetic guide disk and the yoke often attract each other, making the vibrator unable to work normally.

[0012] The accuracy and delay of tactile feedback are key issues. The above tactile feedback solutions are insufficient in terms of timeliness and accuracy, which can easily cause users to feel a sense of disharmony when interacting in real time. For example, in virtual reality, when users operate objects, the tactile feedback does not match the visual effect, which can easily lead to cognitive dissonance and affect the user experience. In addition, high feedback delays can cause users to feel uncomfortable during operation, affecting their sense of immersion.

[0013] The first resonant frequency of existing solutions such as vibration motor drive (ERM), piezoelectric drive, linear resonant actuator (LRA) is higher than 60Hz, which cannot be very low. The vibration in the low-frequency area is weak, and some low-frequency signals cannot generate vibration.

[0014] Among the above several solutions, as Figure 28 shown, the bandwidth of human tactile perception is between 1 hz and 1 khz, and the bandwidth of human auditory perception is between 20 hz and 20 khz. The ERM of the rotor motor is a fixed-frequency vibration, and the general linear motor LRA is also a vibration close to a fixed frequency or with a very narrow bandwidth. Obviously, the ERM of the rotor motor and the LRA of the linear motor cannot meet the human demand for the tactile feedback perception bandwidth range of 1 hz - 1 khz, resulting in the tactile perception caused by tactile feedback being neither high-definition nor delicate. To meet the human demand for delicate and high-definition tactile perception, the bandwidth of the tactile feedback oscillator is preferably extended to 40 hz, or even lower to 10 hz, or even lower frequencies. And a determining factor for the low-frequency response to be high enough is whether the first resonance peak of the oscillator is low enough.

[0015] In addition, the existing ERM rotor motors cannot accurately control the phase because it is achieved through the rotation of the rotor, so the phase cannot be controlled, and the start-up delay and stop delay are relatively long. The LRA linear resonant actuator, which is a type of linear motor, is a fixed-frequency linear motor and belongs to a very narrow frequency range. For vibrations of different frequencies, it cannot generate sufficient vibration amplitude, thus unable to provide accurate tactile feedback and audio auditory feedback experiences. Summary of the Invention

[0016] In view of the above technical problems, the purpose of the present invention is to provide a flat staggered push-pull oscillator and its application, which solves the problem that the suction phenomenon easily occurs between the mover assembly and the stator assembly, has the characteristics of low first resonance frequency, strong vibration feeling, small distortion, etc., and can generate low-frequency tactile and audio effects. The application of this technology can significantly improve the user experience and is widely applicable to fields such as smart devices, virtual reality systems, entertainment devices, and human-computer interaction interfaces, filling the gaps in the existing technology.

[0017] To achieve the above purpose, the present invention provides the following technical solution: A flat staggered push-pull oscillator, which is at least composed of a stator assembly, a mover assembly, and a spring sheet; For a single-mover oscillator, on the cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly and the mover assembly to divide the stator assembly and the mover assembly unobstructed; For a double-mover oscillator, on the cross-section passing through the axis, a straight line can be drawn in the area between mover assembly one and mover assembly two to divide mover assembly one and mover assembly two unobstructed; The mover assembly is simultaneously subjected to electromagnetic forces of thrust and pull in pairs, presenting a push-pull structural feature; the components of the thrust and pull electromagnetic forces on the mover assembly in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0018] Preferably, according to different vibration types of the vibrator, it can be divided into moving magnet type, moving coil type, moving iron type, moving coil magnet type, moving magnet coil type single moving vibrator, inner moving magnet outer moving coil double moving type or inner moving coil outer moving magnet double moving type, inner moving iron outer moving coil magnet double moving type, and inner moving iron outer moving magnet coil double moving vibrator.

[0019] Preferably, the following any one of the structural relationships is adopted between the first mover assembly and the second mover assembly: The first way is the magnetic coil parallel type: the first mover assembly is a magnet assembly, and the second mover assembly is a coil assembly; The second way is the coil magnet parallel type: the first mover assembly is a coil assembly, and the second mover assembly is a magnet assembly; The third way is the moving iron moving magnetic coil parallel type: the first mover assembly is an iron core assembly, and the second mover assembly is a magnetic coil assembly; The fourth way is the moving iron moving coil magnet parallel type: the first mover assembly is an iron core assembly, and the second mover assembly is a coil magnet assembly.

[0020] Preferably, the stator assembly includes an external structural member, an isolation frame, a magnetic conduction ring, a coil and / or a magnet; the coil and / or the magnet is one or more; there is an isolation frame between adjacent coils or magnets, and the isolation frame is a single component or a combination composed of multiple components; the mover assembly is located in the middle of the entire vibrator and has one or more magnets or coils, and connection structural members are designed at both ends of the magnet or coil, and the connection structural members are magnetic conduction disks, magnetic conduction rings, iron cores and / or positioning pins; there is also one or two elastic pieces, which are divided into a central part and a peripheral part, and the central part and the peripheral part are connected by branches or trunks, and the branches have one or more bends or rotations, so that the effective length of the branches of the elastic piece is increased, the stiffness coefficient of the elastic piece is reduced, and thus a lower first resonance frequency is obtained, and the elastic piece connects the external structural member of the stator assembly and the mover assembly.

[0021] Preferably, the external structural member surrounds the magnet, the coil and the isolation frame, and is an independent single shell or a shell composed of multiple components together, and there is one or more hollow parts on the shell.

[0022] Preferably, the material of the external structural member is located in [0.05, *10 6Rayleigh (kg / m2·s), so that when vibration propagates from the external structural member to the air, the wave attenuation at the interface between the two media of the external structural member and the air is relatively large, thereby reducing sound leakage; the material is hard plastic, metal, ceramic, glass, wood, plastic alloy, glass fiber reinforced plastic, carbon fiber reinforced plastic, nylon glass fiber composite material or PC / PMMA composite board.

[0023] Preferably, the external structural member is a material with a high Young's modulus, a material with a Young's modulus greater than 1 GPa. The material with a high Young's modulus results in less vibration transmission attenuation for medium and high frequency vibrations; the material of the external structural member is preferably a good conductor of heat, which can accelerate the heat dissipation during the operation of the oscillator; the external structural member is a magnetic material, which can reduce the magnetic resistance around the coil, improve the sensitivity of the oscillator, and enhance the vibration feeling.

[0024] Preferably, the spacer is placed between the coil or the magnet, and is relatively fixed to the external structural member and the coil or the magnet. The spacer is a magnetic conductive material or a non-magnetic conductive material.

[0025] Preferably, the shrapnel includes a flat sheet body. The flat sheet body includes a central part and a peripheral part. A number of discontinuous through holes or through grooves are formed on the flat sheet body. The central part and the peripheral part are connected by at least 2 connecting branches, and the connecting branches are rotationally symmetric in a single group or multiple groups; The shrapnel is connected to the external structural member of the stator assembly and the shrapnel connecting member of the rotor assembly; One or several of the branches of the shrapnel have bends or turns, so that the effective length of the shrapnel branches is increased, the stiffness coefficient of the shrapnel is reduced, and thus a lower first resonance frequency is obtained; The branches of the shrapnel are located on a plane or are three-dimensionally interlaced; The shrapnel is made of metal, which is stainless steel, beryllium copper or titanium alloy; The central part of the shrapnel can be a regular or irregular shape such as a circle, a rectangle, or an ellipse, and the peripheral part is a closed ring, a discontinuous ring or a block; The peripheral part of the shrapnel is a complete outer frame or is disconnected. When there is a complete outer frame, the outer frame of the shrapnel is fixed to the external structural member of the stator assembly; when the outer frame is disconnected, one end of the shrapnel is fixed to the external structural member of the stator assembly.

[0026] The application of the flat interleaved push-pull oscillator is applicable to bone conduction headphones, bone conduction glasses, wired headphones, wireless headphones, AR glasses, VR glasses, smart watches, smart bracelets, head-mounted devices, wearable devices, smart phones, game pads, gaming headphones, game steering wheels, game pedals, mice, keyboards, touch screens, electrical control panels, touch control devices, screen sound-emitting 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 aid devices, sleep aid devices or haptic feedback network interconnection devices.

[0027] The present invention has the following beneficial effects: 1. Effectively avoids the defects of the concave-convex interleaved oscillator structure design, prevents the suction problem between the mover component and the stator component, ensures the oscillator performance, and prevents the oscillator from failing.

[0028] 2. One of the decisive factors for determining that the low-frequency response of the audio is high enough and the frequency bandwidth is wide enough is whether the first resonance peak of the oscillator is low enough. The frequency bandwidth of the flat interleaved push-pull oscillator is preferably extended to 40 Hz, or even lower to 10 Hz and below 10 Hz; compared with other solutions, the frequency bandwidth is wider and the performance is stronger.

[0029] 3. The frequency response distortion is small, and the signal can be fed back to the touch more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a cross-sectional view of the oscillator of Embodiment 1 of the present invention; Figure 2 is a perspective view of the oscillator of Embodiment 1 of the present invention; Figure 3 is a cross-sectional view of the oscillator of Embodiment 2 of the present invention; Figure 4 is a perspective view of the oscillator of Embodiment 2 of the present invention; Figure 5 is a schematic diagram of the flat interleaved push-pull oscillator of the present invention; Figure 6 is a schematic diagram of the concave-convex interleaved oscillator; Figure 7 is a cross-sectional view of the oscillator of Embodiment 3 of the present invention; Figure 8 is a perspective view of the oscillator of Embodiment 3 of the present invention; Figure 9 is a cross-sectional view of the oscillator of Embodiment 4 of the present invention; Figure 10 is a perspective view of the oscillator of Embodiment 4 of the present invention; Figure 11 is a cross-sectional view of the oscillator of Embodiment 5 of the present invention; Figure 12 Is the perspective view of the oscillator of Embodiment 5 of the present invention; Figure 13 Is the cross-sectional view of the oscillator of Embodiment 6 of the present invention; Figure 14 Is the perspective view of the oscillator of Embodiment 6 of the present invention; Figure 15 Is the perspective view of the oscillator of Embodiment 7 of the present invention; Figure 16 Is the perspective view of the oscillator of Embodiment 8 of the present invention; Figure 17 Is the perspective view of the oscillator of Embodiment 9 of the present invention; Figure 18 Is the perspective view of the oscillator of Embodiment 10 of the present invention; Figure 19 Is the perspective view of the oscillator of Embodiment 11 of the present invention; Figure 20 Is the perspective view of the oscillator of Embodiment 12 of the present invention; Figure 21 Is the perspective view of the oscillator of Embodiment 13 of the present invention; Figures 22 - 23 Is the structural schematic diagram of the shrapnel of the present invention; Figures 24 - 25 Is the force analysis diagram of the oscillator of the present invention; Figure 26 Is the comparison diagram of the first resonance frequency F0 between the oscillator of the present invention and oscillators of other models; Figure 27 Is the comparison diagram of the frequency response curves between the oscillator of the present invention and oscillators of other models; Figure 28 Is the schematic diagram of the principle of tactile feedback; Figure 29 Is the structural schematic diagram of the push-pull oscillator of the concave-convex staggered type. Detailed implementation manners

[0031] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following is a detailed description in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0033] Embodiment 1 Please refer to Figures 1 - 2, A flat interleaved push-pull oscillator, which includes a stator assembly 2, a mover assembly 3 and two shrapnel 1s, and is of a moving magnet structure. The stator assembly 2 includes an external structural member 21, two coils 22 and an isolation bracket 23; the mover assembly 3 is located in the middle of the entire oscillator, and there is one magnet 31, and there are connecting structural members 32 at both ends of the magnet; the oscillator has two shrapnel 1s, and there is a mover assembly connecting portion 11 in the middle of the shrapnel 1. The mover assembly connecting portion 11 is located in the middle part of the oscillator, and the shrapnel 1 connects the external structural member 21 of the stator assembly and the mover assembly 3.

[0034] The external structural member 21 is on the outside of the coil 22 and is a housing for fixing the coil 22 and the isolation bracket 23 and connecting the stator assembly and the shrapnel. The material of the external structural member 21 is selected as magnetic stainless steel, and its Young's modulus is greater than 1 GPa, and the vibration transmission attenuation for medium and high frequency vibrations is relatively small; the material of the external structural member 21 is in the range of [0.05, *10 6 Rayleigh (kg / m 2 ·s), which can reduce sound leakage; this stainless steel is a good conductor of heat, which can accelerate the heat dissipation when the oscillator works; this external structural member 21 is a magnetic material, which can reduce the magnetic resistance around the coil, improve the sensitivity of the oscillator and enhance the vibration feeling. The isolation bracket 23 can be a bracket, and in this example, a magnetic material is always selected. In this example, two coils 22 are used, and the coils 22 are fixed to the external structural member 21 and the coil isolation bracket 23 of the stator assembly. The mover assembly 3 is located in the middle of the entire oscillator, and there is one magnet 31, and there are connecting structural members 32 at both ends of the magnet.

[0035] This example oscillator has two shrapnel 1s. The shrapnel 1 connects the external structural member 21 of the stator assembly 2 and the connecting structural member 32 of the mover assembly 3. The shrapnel 1 has a mover assembly connecting portion 11, and the mover assembly connecting portion 11 is located in the middle part of the oscillator; the shrapnel 1 has a complete outer frame 14, and the outer frame 12 of the shrapnel is fixed to the external structural member 21 of the stator assembly. The shrapnel has a branch 12, one end of the branch is connected to the connecting structural member 32, and the other end is connected to the outer frame 14. The branch 12 of the shrapnel has two bends 13, which increases the effective length of the shrapnel branch 12, reduces the stiffness coefficient of the shrapnel, and thus obtains a lower first resonance frequency F0.

[0036] In the cross-section passing through the axis, a straight line can be drawn in the region between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructed; with such a structural design, in the Z-axis direction, there is no attraction between the guide disk and the yoke; in the X-Y plane, the attraction between the intermediate magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke increases or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the concave-convex interleaved oscillator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the oscillator performance, and prevents the oscillator from failing. A determining factor for the audio low-frequency response to be high enough and the frequency bandwidth to be wide enough is whether the first resonance peak of the oscillator is low enough, and the frequency bandwidth of the flat interleaved push-pull oscillator is preferably extended to 40 hz, or even lower to 10 hz and below 10 hz; compared with other solutions, the frequency bandwidth is wider and the performance is stronger.

[0037] The mover assembly 3 is simultaneously subjected to electromagnetic forces of thrust and pull in pairs, presenting a push-pull structural feature; the component forces of the electromagnetic forces of thrust and pull received by the mover assembly 3 in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0038] Regarding the push-pull structural feature and principle, reference can be made to the invention patents authorized to the applicant, with the authorization announcement numbers CN117399259B, CN117412227B, CN117412225B, CN117443701B, and CN117412226B.

[0039] Embodiment 2 Please refer to Figures 3 - 6 , a flat interleaved push-pull oscillator, including three parts: a stator assembly 2, a mover assembly 3, and a shrapnel 1, which is a moving magnet structure. The stator assembly 2 includes an external structural member 21, 2 coils 22, and a coil isolation frame assembly 23; the mover assembly 3 is located in the middle of the entire oscillator, has 1 magnet 31, there are connecting structural members 32 at both ends of the magnet, and there is a magnetic conduction component 33 between the magnet 31 and the connecting member 32; the oscillator has two shrapnels 1, the shrapnel 1 has a mover assembly connecting portion 11, the mover assembly connecting portion 11 is located in the middle part of the oscillator, and the shrapnel 1 connects the external structural member 21 of the stator assembly and the mover assembly 3.

[0040] The external structural member 21 is outside the coil 22 and is a housing composed of multiple parts. The housing has multiple hollow parts 211 to facilitate wire leading. The external structural member 21 fixes the coil 22 and the coil isolation frame 23, and connects the stator assembly 2 and the shrapnel 1. The material of the external structural member 21 is selected as magnetically conductive stainless steel, and the Young's modulus is greater than 1 GPa, with less vibration transmission attenuation for medium and high-frequency vibrations; the material of the external structural member 21 is located in [0.05,]*10 6 Rayleigh (kg / m2 ·s), which can reduce sound leakage; the stainless steel is a good conductor of heat, which can accelerate the heat dissipation of the vibrator during operation; the external structural member 21 is a magnetic conductive material, which can reduce the magnetic resistance around the coil 22, improve the sensitivity of the vibrator, and enhance the vibration feeling. There are 2 coils 22, and the coil spacer 23 is a bracket assembly composed of 3 components; the coil 22 is fixed together with the combination of the external structural member 21 and the coil spacer 23.

[0041] The mover assembly 3 is located in the middle of the entire vibrator, and there is 1 magnet 31, and there are connecting structural members 32 at both ends of the magnet. There is a magnetic conductive member 33 between the magnet 31 and the connecting member 32 to concentrate the magnetic field line distribution and improve the sensitivity of the vibrator.

[0042] The vibrator of this embodiment has two shrapnel 1. The shrapnel 1 connects the external structural member 21 of the stator assembly 2 and the connecting structural member 32 of the mover assembly 3. There is a mover assembly connecting portion 11 in the middle of the shrapnel 1, and the mover assembly connecting portion 11 is located in the middle part of the vibrator; the shrapnel 1 has a complete outer frame 14, and the shrapnel outer frame 14 is fixed to the external structural member 21 of the stator assembly. The shrapnel 1 has 2 branches 12, one end of the branch 12 is connected to the mover assembly connecting portion 11, and the other end is connected to the outer frame 14. The branch 12 of the shrapnel 1 has 2 bends 13, which increases the effective length of the shrapnel branch 12, reduces the stiffness coefficient of the shrapnel 1, and thus obtains a lower first resonance frequency F0.

[0043] In the cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructed; with such a structural design, in the Z-axis direction, there is no suction between the guide disk and the yoke; in the X-Y plane, the suction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke increases or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the concave-convex interlaced vibrator structure design, prevents the suction problem between the mover assembly and the stator assembly, ensures the performance of the vibrator, and prevents the vibrator from failing.

[0044] Embodiment 3 Please refer to Figures 7 - 8 , a flat interlaced push-pull vibrator, including three parts: a stator assembly 2, a mover assembly 3 and a shrapnel 1, which is a moving magnet structure. The stator assembly 2 includes an external structural member 21, 2 coils 22 and a coil spacer 23; the mover assembly 3 is located in the middle of the entire vibrator, and there is 1 magnet 31, and there are connecting structural members 32 at both ends of the magnet. There is a magnetic conductive member 33 between the magnet 31 and the connecting member 32; the vibrator has two shrapnel 1, and there is a mover assembly connecting portion 11 in the middle of the shrapnel 1. The mover assembly connecting portion 11 is located in the middle part of the vibrator, and the shrapnel 1 connects the external structural member 21 of the stator assembly and the mover assembly 3.

[0045] The external structural member 21 is located outside the stator assembly 2 and is a housing composed of multiple parts. The external structural member 21 fixes the coil 22 and the coil spacer 23, and connects the stator assembly 2 and the elastic piece 1. The material of the external structural member 21 is selected as hard plastic, and its Young's modulus is greater than 1 GPa. It has a relatively small vibration transmission attenuation for medium and high frequency vibrations; the material of the external structural member 21 is located in the range of [0.05,]*10 6 Rayleigh (kg / m 2 ·s), which can reduce sound leakage; there are 2 coils 22 and 1 coil spacer 23; the coil 22 is fixed together with the combination of the external structural member 21 and the coil spacer 23.

[0046] The mover assembly 3 is located in the middle of the entire oscillator, and there is 1 magnet 31 with connecting structural members 32 at both ends of the magnet. There is a magnetic conductive member 33 between the magnet 31 and the connecting member 32 to concentrate the magnetic flux distribution and improve the sensitivity of the oscillator.

[0047] This oscillator in this example has two elastic pieces 1. The elastic piece 1 connects the external structural member 21 of the stator assembly 2 and the connecting structural member 32 of the mover assembly 3. The elastic piece 1 has a mover assembly connection part 11, and the mover assembly connection part 11 is located in the middle of the elastic piece 1; the elastic piece 1 does not have a complete outer frame, and the outer ends 14 of the branches of the elastic piece 1 are fixed to the external structural member 21 of the stator assembly. The elastic piece 1 has 2 branches 12, one end of the branch 12 is connected to the mover assembly connection part 11, and the other end is connected to the external structural member 21 of the stator assembly. The branch 12 of the elastic piece 1 has 4 bends 13, which increases the effective length of the branch 12 of the elastic piece, reduces the stiffness coefficient of the elastic piece 1, and thus obtains a lower first resonance frequency F0.

[0048] In the cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructedly; with such a structural design, in the Z-axis direction, there is no attraction between the guide disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke is increased or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the uneven and interlaced oscillator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the performance of the oscillator, and prevents the oscillator from failing.

[0049] Embodiment 4 Please refer to Figures 9 - 10, a flat interleaved push-pull oscillator, which includes a stator assembly 2, a mover assembly 3 and a shrapnel 1, and is a moving coil structure. The stator assembly 2 includes an external structural member 21, two magnets 22 and a magnet spacer 23; the mover assembly 3 is located in the middle of the entire oscillator and has a coil 32. The coil 32 and the shrapnel 1 are connected and fixed through a connecting structural member 31; at the same time, a magnetic conduction component 33 is connected and fixed to the outer end face of the coil 32; the oscillator has two shrapnels 1, and there is a mover assembly connecting portion 11 in the middle of the shrapnel 1. The mover assembly connecting portion 11 is located in the middle part of the oscillator, and the shrapnel 1 connects the external structural member 21 of the stator assembly and the mover assembly 3.

[0050] The external structural member 21 is outside the magnet 22 and is a housing composed of multiple parts. The external structural member 21 fixes the magnet 22 and the magnet spacer 23, and connects the stator assembly 2 and the shrapnel 1. The material of the external structural member 21 is selected as hard plastic, and the Young's modulus is greater than 1 GPa. The vibration transmission attenuation for medium and high frequency vibrations is small; the material of the external structural member 21 is located in [0.05,]*10 6 Rayleigh (kg / m 2 ·s), which can reduce sound leakage; there are two magnets 22 and one magnet spacer 23; the magnets 22 and the combination of the external structural member 21 and the magnet spacer 23 are fixed together.

[0051] The mover assembly 3 is located in the middle of the entire oscillator and has a coil 32. The coil 32 and the shrapnel 1 are connected and fixed through a connecting structural member 31; at the same time, a magnetic conduction component 33 is connected and fixed to the end face of the coil 32 to concentrate the magnetic flux distribution and improve the sensitivity of the oscillator.

[0052] This example oscillator has two shrapnels 1. The shrapnel 1 connects the external structural member 21 of the stator assembly 2 and the connecting structural member 31 of the mover assembly 3. There is a mover assembly connecting portion 11 in the middle of the shrapnel 1, and the mover assembly connecting portion 11 is located in the middle part of the oscillator; the shrapnel 1 has a complete outer frame 14, and the outer frame 14 of the shrapnel is fixed to the external structural member 21 of the stator assembly. The shrapnel 1 has two branches 12. One end of the branch 12 is connected to the mover assembly connecting portion 11, and the other end is connected to the outer frame 14. The branch 12 of the shrapnel 1 has four bends 13, which increases the effective length of the shrapnel branch 12, reduces the stiffness coefficient of the shrapnel 1, and thus obtains a lower first resonance frequency F0.

[0053] In a cross-section passing through the axis, a straight line can be drawn in the region between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructedly; with such a structural design, in the Z-axis direction, there is no attraction between the guide disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke is increased or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the uneven interleaved oscillator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the oscillator performance, and prevents the oscillator from failing.

[0054] Embodiment 5 Please refer to Figures 11 - 12 , a flat interleaved push-pull oscillator, which includes three parts: a stator assembly 2, a mover assembly 3, and a shrapnel 1, and is a moving coil structure. The stator assembly 2 includes an external structural member 21, two magnets 22, and a coil isolation frame assembly 23; the mover assembly 3 is located in the middle of the entire oscillator and has a coil 32. The coil 32 and the shrapnel 1 are connected and fixed through a connecting structural member 31; at the same time, a magnetic conduction component 33 is connected and fixed to the outer end face of the coil 32; there are two shrapnels 1 in the oscillator, and there is a mover assembly connecting portion 11 in the middle of the shrapnel 1. The mover assembly connecting portion 11 is located in the middle part of the oscillator, and the shrapnel 1 connects the external structural member 21 of the stator assembly and the mover assembly 3.

[0055] The external structural member 21 is outside the magnet 22 and is a housing composed of multiple parts. The external structural member 21 fixes the magnet 22 and the magnet isolation frame 23, and connects the stator assembly 2 and the shrapnel 1. The material of the external structural member 21 is selected as a hard plastic with a Young's modulus greater than 1 GPa. The vibration transmission attenuation for medium and high frequency vibrations is small; the material of the external structural member 21 is located in [0.05,]*10 6 Rayleigh (kg / m 2 ·s), which can reduce sound leakage; there are two magnets 22 and one magnet isolation frame 23; the coil 22 is fixed together with the external structural member 21 and the magnet isolation frame 23 assembly.

[0056] The mover assembly 3 is located in the middle of the entire oscillator and has a coil 32. The coil 32 and the shrapnel 1 are connected and fixed through a connecting structural member 31; at the same time, a magnetic conduction component 33 is connected and fixed to the end face of the coil 32 to concentrate the magnetic flux distribution and improve the oscillator sensitivity.

[0057] In this example, the vibrator has two shrapnel pieces 1. The shrapnel piece 1 connects the external structure member 21 of the stator assembly 2 and the connection structure member 32 of the mover assembly 3. The middle part of the shrapnel piece 1 has a mover assembly connection part 11, and the mover assembly connection part 11 is located in the middle part of the vibrator; the shrapnel piece 1 has a complete outer frame 14, and the outer frame 14 of the shrapnel is fixed to the external structure member 21 of the stator assembly. The shrapnel piece 1 has 2 branches 12. One end of the branch 12 is connected to the mover assembly connection part 11, and the other end is connected to the outer frame 14. The branch 12 of the shrapnel piece 1 has 2 bends 13, which increases the effective length of the shrapnel branch 12, reduces the stiffness coefficient of the shrapnel piece 1, and thus obtains a lower first resonance frequency F0.

[0058] In the cross-section passing through the axis, in the area between the stator assembly 2 and the mover assembly 3, a straight line can be drawn to divide the stator assembly 2 and the mover assembly 3 unobstructedly; with such a structural design, in the Z-axis direction, there is no attraction between the guide disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke is increased or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the uneven staggered vibrator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the performance of the vibrator, and prevents the vibrator from failing.

[0059] Embodiment 6 Please refer to Figures 13 - 14 , a straight staggered push-pull vibrator, which includes three parts: a stator assembly 2, a mover assembly 3, and a shrapnel piece 1, and is a moving coil structure. The stator assembly 2 includes an external structure member 21, 2 magnets 22, and a magnet isolation frame 23; the mover assembly 3 is located in the middle of the entire vibrator and has 1 coil 32. The coil 32 and the shrapnel piece 1 are connected and fixed through the mover assembly magnetic conduction member 33; the vibrator has two shrapnel pieces 1. The middle part of the shrapnel piece 1 has a mover assembly connection part 11, and the mover assembly connection part 11 is located in the middle part of the vibrator. The shrapnel piece 1 connects the external structure member 21 of the stator assembly and the mover assembly 3.

[0060] The external structure member 21 is on the outside of the magnet 22 and is a housing composed of multiple parts. The external structure member 21 fixes the magnet 22 and the magnet isolation frame 23 and connects the stator assembly 2 and the shrapnel piece 1. The material of the external structure member 21 is selected as hard plastic, and the Young's modulus is greater than 1 GPa. The vibration transmission attenuation for medium and high frequency vibrations is relatively small; the material of the external structure member 21 is located in [0.05,]*10 6 Rayleigh (kg / m 2 ·s), which can reduce sound leakage; there are 2 magnets 22 and 1 magnet isolation frame 23; the magnet 22 and the combination of the external structure member 21 and the magnet isolation frame 23 are fixed together.

[0061] The mover assembly 3 is located in the middle of the entire oscillator, and there is one coil 22. The coil 22 and the shrapnel 1 are connected and fixed through the magnetic conduction component 33 of the mover assembly. At the same time, through the magnetic conduction component 33, the distribution of magnetic lines of force can be concentrated, improving the sensitivity of the oscillator.

[0062] The oscillator in this example has two shrapnels 1. The shrapnel 1 connects the external structural member 21 of the stator assembly 2 and the connection structural member 32 of the mover assembly 3. There is a mover assembly connection part 11 in the middle of the shrapnel 1, and the mover assembly connection part 11 is located in the middle part of the oscillator. The shrapnel 1 has a complete outer frame 14, and the outer frame 14 of the shrapnel is fixed to the external structural member 21 of the stator assembly. The shrapnel 1 has two branches 12. One end of the branch 12 is connected to the mover assembly connection part 11, and the other end is connected to the outer frame 14. The branch 12 of the shrapnel 1 has four bends 13, which increases the effective length of the shrapnel branch 12, reduces the stiffness coefficient of the shrapnel 1, and thus obtains a lower first resonance frequency F0.

[0063] In the cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructedly. With such a structural design, in the Z-axis direction, there is no attraction between the guide disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke is increased or part of the yoke is cancelled. This is the essential advantage and feature. It effectively avoids the defects of the concave-convex staggered oscillator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the oscillator performance, and prevents the oscillator from failing.

[0064] Embodiment 7 Please refer to Figure 15 , a flat staggered push-pull oscillator, comprising: a shrapnel 1, a stator assembly 2, and a mover assembly 3, which is a moving iron structure; when looking from the center outwards, the mover assembly 3 is in the middle of the oscillator, and the stator assembly 2 is in the peripheral part of the oscillator; the stator assembly 2 is composed of an external structural member 21, a magnet 25, a yoke 22, a magnetic conduction ring 23, and a coil 24; the external structural member 21 of the stator assembly 2 is connected and fixed to the peripheral part of the shrapnel 1 to form an overall support structure; the mover assembly 3 is composed of an iron core 31 and a guide disk 32; the shrapnel 1 includes a central part, a peripheral part, and connecting branches. The central part is used to connect to the mover assembly 3, and the peripheral part is used to be fixed to the peripheral support structure 26; the connecting rod 14 connects the central part and the peripheral part of the shrapnel 1 and provides symmetric force support. The shrapnel 1 can be double-sided or single-sided; the mover assembly 3 is subjected to the attractive force of the magnetic circle and the traction of the shrapnel 1, which can well increase the vibration performance of the oscillator, thereby generating a lower first resonance peak and a wider frequency bandwidth.

[0065] Embodiment 8 Please refer to Figure 16, a flat interleaved push-pull oscillator, comprising: a shrapnel 1, a stator assembly 2, and a mover assembly 3; when viewed from the center outwards, the mover assembly 3 is at the peripheral part of the oscillator, and the stator assembly 2 is in the middle part of the oscillator; the stator assembly 2 includes an iron core 21 and a magnetic guide disk 22, the magnetic guide disk 22 is fixedly arranged on the upper and lower parts of the iron core 21, and the iron core 21 is connected and fixed to the central part of the shrapnel 1. The outer cylinder 4 is connected and fixed to the peripheral part of the shrapnel 1 to form an integral support structure; the mover assembly 3 is composed of a coil 31, a magnet 32, a yoke 33, a magnetic guide ring 34, and an inner cylinder 35; when viewed from the center outwards, the coil 31 is inside and the magnet 32 is outside, the magnet 32 is fixedly arranged between the yokes 33, magnetic guide rings 34 are arranged on the top and bottom surfaces of the magnet 32, the coil 31 is fixed on the magnet 32, and the yoke 33 is fixed on the inner wall of the inner cylinder 35, which is a moving coil magnetic structure.

[0066] The shrapnel 1 includes a central part, a peripheral part, and connecting branches. The central part 11 is used to connect with the stator assembly 2, and the peripheral part is used to be fixed to the outer cylinder 4; the connecting struts connect the central part and the peripheral part of the shrapnel 1 and provide symmetric force support. The shrapnel 1 can be double-sided or single-sided; the mover assembly 3 is subjected to the attractive force of the magnetic circle and the traction of the shrapnel 1, which can effectively improve the vibration performance of the oscillator, thereby generating a lower first resonance peak and a wider frequency band.

[0067] In a cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructedly; with such a structural design, in the Z-axis direction, there is no attraction between the magnetic guide disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke increases or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the concave-convex interleaved oscillator structure design, prevents the attraction problem between the mover assembly and the stator assembly, ensures the oscillator performance, and prevents the oscillator from failing.

[0068] Embodiment 9 Please refer to Figure 17, A flat interleaved push-pull oscillator, comprising: a leaf spring 1, a stator assembly 2, and a mover assembly 3; when viewed from the center outwards, the mover assembly 3 is at the peripheral part of the oscillator, and the stator assembly 2 is at the middle part of the oscillator; the stator assembly 2 includes an iron core 21 and a magnetic conduction disk 22, the magnetic conduction disk 22 is fixedly arranged on the upper and lower parts of the iron core 21, and the iron core 21 is connected and fixed to the central part of the leaf spring 1. The outer cylinder 4 is connected and fixed to the peripheral part of the leaf spring 1 to form an integral support structure; the mover assembly 3 is composed of a coil 31, a magnet 32, a yoke 33, a magnetic conduction ring 34, and an inner cylinder 35; when viewed from the center outwards, the coil 31 is on the outside and the magnet 32 is on the inside, the coils 31 are fixedly arranged between the yokes 33, magnetic conduction rings 34 are arranged on the top and bottom surfaces of the coils 31, the coils 31 are fixed on the magnet 32, and the yokes 33 are fixed on the inner wall of the inner cylinder 35, which is a moving magnetic circle structure.

[0069] The leaf spring 1 includes a central part, a peripheral part, and connecting branches. The central part 11 is used to connect with the stator assembly 2, and the peripheral part is used to be fixed to the outer cylinder 4; the connecting struts connect the central part and the peripheral part of the leaf spring 1 and provide symmetric force support. The leaf spring 1 can be double-sided or single-sided; the mover assembly 3 is subjected to the attractive force of the magnetic circle and the traction of the leaf spring 1, which can effectively improve the vibration performance of the oscillator, thereby generating a lower first resonance peak and a wider frequency band.

[0070] In a cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly 2 and the mover assembly 3 to divide the stator assembly 2 and the mover assembly 3 unobstructedly; with such a structural design, in the Z-axis direction, there is no attraction between the magnetic conduction disk and the yoke; in the X-Y plane, the attraction between the middle magnet and the inner side of the yoke is greatly reduced; especially when the inner diameter of the yoke increases or part of the yoke is removed. This is the essential advantage and feature. It effectively avoids the defects of the concave-convex interleaved oscillator structure design, prevents the attraction between the mover assembly and the stator assembly, ensures the oscillator performance, and prevents the oscillator from failing.

[0071] Embodiment 10 Please refer to Figure 18, A flat interleaved push-pull oscillator, comprising: a leaf spring 1, a stator assembly 4, a first mover assembly 2, and a second mover assembly 3. The stator assembly 4 is a fixed peripheral support structure, i.e., an outer cylinder. Looking from the center outwards, the first mover assembly 2 is inside, and the second mover assembly 3 is outside. The peripheral support structure is fixedly connected to the outer ring of the leaf spring 1 to form an integral support structure. The first mover assembly 2 is composed of a magnet 21 and upper and lower magnetic guide disks 22, and the upper and lower magnetic guide disks 22 are respectively fixed to the upper and lower parts of the magnet 21. The second mover assembly 3 is composed of two coils 31, a yoke 32, two magnetic guide rings 33, and an inner cylinder 34. The yoke 32 is arranged between the two coils 31, and the magnetic guide rings 33 are provided on the top and bottom surfaces of the coils 31. The coils 31 and the yoke 32 are fixed to the inner wall of the inner cylinder 34. The first mover assembly 3, the second mover assembly 32, and the fixed peripheral support structure 21 are fixedly connected to at least three points of the leaf spring, and there are gaps between the first mover assembly 2 and the second mover assembly 3 and between the second mover assembly 3 and the peripheral support structure to allow the mover assemblies to vibrate. The above structure is a moving magnet and moving coil structure.

[0072] The leaf spring 1 includes a central portion, a peripheral portion, and connecting struts. The central portion is used to connect to the first mover assembly 2, and the peripheral portion is used to be fixed to the peripheral support structure. The connecting struts connect the central portion and the peripheral portion of the leaf spring and provide symmetric force support. The leaf spring 1 can be double-sided or single-sided. The lever type means that the first mover assembly 2 and the second mover assembly 3 are respectively connected to the end force point 1 and the middle force point 2.

[0073] For a double mover oscillator, on a cross-section passing through the axis, a straight line can be drawn in the region between the first mover assembly 2 and the second mover assembly 3 to divide the first mover assembly 2 and the second mover assembly 3 unobstructedly. The mover assemblies are simultaneously subjected to electromagnetic forces of paired thrust and pull, presenting a push-pull structural feature. The component forces of the thrust and pull electromagnetic forces received by the mover assemblies in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0074] Embodiment 11 Please refer to Figure 19, A flat interleaved push-pull oscillator, comprising: a leaf spring 1, a stator assembly 4, a first mover assembly 2 and a second mover assembly 3. The stator assembly 4 is a fixed peripheral support structure, i.e., an outer cylinder. Looking from the center outwards, the first mover assembly 2 is inside and the second mover assembly 3 is outside. The peripheral support structure is fixedly connected to the outer ring of the leaf spring 1 to form an integral support structure. The first mover assembly 2 is composed of a coil 21 and upper and lower magnetic disks 22. The upper and lower magnetic disks 22 are fixed to the upper and lower parts of the coil 21. The second mover assembly 3 is composed of two magnets 31, a yoke 32, two magnetic conduction rings 33 and an inner cylinder 34. The yoke 32 is arranged between the two magnets 31. The magnetic conduction rings 33 are provided on the top and bottom surfaces of the magnets 31. The magnets 31 and the yoke 32 are fixed to the inner wall of the inner cylinder 34. The first mover assembly 3, the second mover assembly 4, and the fixed peripheral support structure are fixedly connected to at least three positions of the leaf spring 1, and there are gaps between the first mover assembly 2 and the second mover assembly 3 and between the second mover assembly 3 and the peripheral support structure to enable the mover assembly to vibrate. The above structure is a moving coil and moving magnet structure. The above structure is a moving coil and moving magnet structure.

[0075] The leaf spring 1 includes a central part, a peripheral part and connecting struts. The central part is used to connect with the first mover assembly 2, and the peripheral part is used to be fixed to the peripheral support structure. The connecting struts connect the central part and the peripheral part of the leaf spring and provide symmetric force support. The leaf spring 1 can be double-sided or single-sided.

[0076] For a double-mover oscillator, in a cross-section passing through the axis, a straight line can be drawn in the area between the first mover assembly 2 and the second mover assembly 3 to divide the first mover assembly 2 and the second mover assembly 3 unobstructedly. The mover assembly is simultaneously subjected to electromagnetic forces of pairwise thrust and pull, presenting a push-pull structural feature. The component forces of the thrust and pull electromagnetic forces received by the mover assembly in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0077] Embodiment 12 Please refer to Figure 20, A flat interleaved push-pull oscillator, comprising: a shrapnel 1, a stator assembly 4, a first mover assembly 2 and a second mover assembly 3. The stator assembly 4 is a fixed peripheral support structure, i.e., an outer cylinder. Looking from the center outwards, the first mover assembly 2 is inside, and the second mover assembly 3 is outside. The peripheral support structure is fixedly connected to the outer ring of the shrapnel 1 to form an overall support structure. The first mover assembly 2 is composed of an iron core 21 and upper and lower magnetic conducting disks 22. The upper and lower magnetic conducting disks 22 are fixed to the upper and lower parts of the iron core 21. The second mover assembly 3 is composed of two coils 31, a yoke 32, two magnetic conducting rings 33, a magnet 35 and an inner cylinder 34. The yoke 32 is arranged between the two coils 31. The magnetic conducting rings 33 are arranged on the top and bottom surfaces of the coils 31. The coils 31 and the yoke 32 are fixed to the inner wall of the inner cylinder 34. The magnet 35 is fixed to the inner wall of the yoke 32. The first mover assembly 3, the second mover assembly 4, and the fixed peripheral support structure are fixedly connected to at least three positions of the shrapnel 1, and there are gaps between the first mover assembly 2 and the second mover assembly 3 and between the second mover assembly 3 and the peripheral support structure to facilitate the vibration of the mover assembly. The above structure is a moving coil and moving magnet structure. The above structure is a moving iron and moving magnetic coil.

[0078] The shrapnel 1 includes a central part, a peripheral part and connecting struts. The central part is used to connect with the first mover assembly 2, and the peripheral part is used to be fixed to the peripheral support structure. The connecting struts connect the central part and the peripheral part of the shrapnel and provide symmetric force support. The shrapnel 1 can be double-sided or single-sided.

[0079] For a double-mover oscillator, in a cross-section passing through the axis, a straight line can be drawn in the area between the first mover assembly 2 and the second mover assembly 3 to divide the first mover assembly 2 and the second mover assembly 3 unobstructedly. The mover assembly is simultaneously subjected to electromagnetic forces of thrust and pull in pairs, presenting a push-pull structural feature. The component forces of the thrust and pull electromagnetic forces received by the mover assembly in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0080] Embodiment 13 Please refer to Figure 21, A flat interleaved push-pull oscillator, comprising: a leaf spring 1, a stator assembly 4, a first mover assembly 2 and a second mover assembly 3. The stator assembly 4 is a fixed peripheral support structure, i.e., an outer cylinder. Looking from the center outwards, the first mover assembly 2 is inside and the second mover assembly 3 is outside. The peripheral support structure is fixedly connected to the outer ring of the leaf spring 1 to form an overall support structure. The first mover assembly 2 is composed of an iron core 21 and upper and lower magnetic disks 22. The upper and lower magnetic disks 22 are fixed to the upper and lower parts of the iron core 21. The second mover assembly 3 is composed of two magnets 31, a yoke 32, two magnetic rings 33, a coil 35 and an inner cylinder 34. The yoke 32 is arranged between the two magnets 31. Magnetic rings 33 are provided on the top and bottom surfaces of the magnets 31. The magnets 31 and the yoke 32 are fixed to the inner wall of the inner cylinder 34. The coil 35 is fixed to the inner wall of the yoke 32. The first mover assembly 3, the second mover assembly 4, the fixed peripheral support structure are fixedly connected to at least three positions of the leaf spring 1, and there are gaps between the first mover assembly 2 and the second mover assembly 3 and between the second mover assembly 3 and the peripheral support structure to facilitate the vibration of the mover assembly. The above structure is a moving coil and moving magnet structure. The above structure is a moving iron and moving coil magnet.

[0081] The leaf spring 1 includes a central part, a peripheral part and connecting struts. The central part is used to connect with the first mover assembly 2, and the peripheral part is used to be fixed to the peripheral support structure. The connecting struts connect the central part and the peripheral part of the leaf spring and provide symmetric force support. The leaf spring 1 can be double-sided or single-sided.

[0082] For a double mover oscillator, in a cross-section passing through the axis, a straight line can be drawn in the area between the first mover assembly 2 and the second mover assembly 3 to divide the first mover assembly 2 and the second mover assembly 3 unobstructedly. The mover assembly is simultaneously subjected to electromagnetic forces of paired thrust and pull, presenting a push-pull structural feature. The component forces of the thrust and pull electromagnetic forces received by the mover assembly in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

[0083] Embodiment 14 As Figures 22 - 23 shown, according to an embodiment of the present invention, the leaf spring 1 is composed of a central part 1A, a peripheral part 1B, a first connecting strut 1C, an inner cylinder connection point 1D, a through hole 1E and a second connecting strut 1F. The central part 1A is used to connect with the first mover assembly 3, and welding, pasting or riveting and other methods can be used to ensure a firm connection between the leaf spring 1 and the first mover assembly 3. The peripheral part 1B is fixedly connected to the peripheral support structure 2 (such as an outer cylinder), providing overall support for the leaf spring 1 and forming the support part of the leaf spring 1 to ensure no deviation or loosening during vibration.

[0084] The connecting rod 1C is used to connect the central part 1A and the peripheral part 1B, providing symmetric elastic support during the operation of the oscillator. The designs of the connecting rod 1C and the connecting rod 1F enable the elastic sheet to maintain balance during vibration in the Z-axis direction, avoiding unstable vibration caused by asymmetric support. Preferably, a central connection point 1G is also provided on the connecting rod 1F for connecting the inner cylinder and for fixed connection with the bracket below, enhancing the stability of the overall structure.

[0085] The vibration frequency can be adjusted by adjusting the lengths or materials of the connecting rod 1C and the connecting rod 1F. For example, when the lengths of the connecting rod 1C and the connecting rod 1F become shorter, the vibration frequency is higher; when the lengths of the connecting rod 1C and the connecting rod 1F become longer, the vibration frequency is lower, and it can be flexibly adjusted according to needs.

[0086] Embodiment 15 Please refer to Figures 1 - 27 , the application of the flat staggered push-pull oscillator of the present invention is applicable to bone conduction headphones, bone conduction glasses, wired headphones, wireless headphones, AR glasses, VR glasses, smart watches, smart bracelets, head-mounted devices, wearable devices, smart phones, game pads, game headphones, game steering wheels, game pedals, mice, keyboards, touch screens, electrical control panels, touch control devices, screen sound-emitting devices, in-vehicle tactile feedback devices, smart cockpits, gaming chairs, massage chairs, massagers, tactile feedback vests, tactile feedback gloves, tactile feedback belts, tactile feedback leg devices, hearing aids, sleep aids or tactile feedback network interconnection devices. One determining factor for ensuring that the low-frequency response of the audio is high enough and the frequency bandwidth is wide enough is whether the first resonance peak of the oscillator is low enough. The frequency bandwidth of the flat staggered push-pull oscillator is preferably extended to 40 Hz, or even lower to 10 Hz and below 10 Hz; compared with other solutions, the frequency bandwidth is wider and the performance is stronger. The frequency response distortion is small, and the signal can be fed back to the touch more accurately.

[0087] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the present invention should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0088] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flat interleaved push-pull oscillator, characterized in that, The oscillator is at least composed of a stator assembly, a mover assembly, and a shrapnel, which are three parts; For a single-moving oscillator, in the cross-section passing through the axis, a straight line can be drawn in the area between the stator assembly and the mover assembly to divide the stator assembly and the mover assembly unobstructed; For a double-moving oscillator, in the cross-section passing through the axis, a straight line can be drawn in the area between the first mover assembly and the second mover assembly to divide the first mover assembly and the second mover assembly unobstructed; The mover assembly is simultaneously subjected to electromagnetic forces of thrust and tension in pairs, presenting a push-pull structural feature; the component forces of the electromagnetic forces of thrust and tension received by the mover assembly in the vibration direction, where the vibration direction is the Z-axis, also present a push-pull structural feature.

2. The straight interleaved push-pull oscillator according to claim 1, wherein Classified according to different vibration types of the oscillator, it can be divided into moving magnet type, moving coil type, moving iron type, moving coil magnet type, moving magnet coil type single-moving oscillator, inner moving magnet and outer moving coil double-moving type or inner moving coil and outer moving magnet double-moving type, inner moving iron and outer moving coil magnet double-moving type, and inner moving iron and outer moving magnet coil double-moving oscillator.

3. The straight interleaved push-pull oscillator according to claim 2, characterized in that Among them, the following structural relationships of any one form are adopted between the first mover assembly and the second mover assembly: The first way is the magnetic coil parallel type: the first mover assembly is a magnet assembly, and the second mover assembly is a coil assembly; The second way is the coil magnet parallel type: the first mover assembly is a coil assembly, and the second mover assembly is a magnet assembly; The third way is the moving iron moving magnetic coil parallel type: the first mover assembly is an iron core assembly, and the second mover assembly is a magnetic coil assembly; The fourth way is the moving iron moving coil magnet parallel type: the first mover assembly is an iron core assembly, and the second mover assembly is a coil magnet assembly.

4. The flat interleaved push-pull oscillator according to claim 2, wherein The stator assembly includes an external structural member, an isolation frame, a magnetic conductive ring, a coil and / or a magnet; the coil and / or the magnet are one or more; there is an isolation frame between adjacent coils or magnets, and the isolation frame is a single component or a combination composed of multiple components; the mover assembly is located in the middle of the entire oscillator, and there is one or more magnets or coils, and connection structural members are designed at both ends of the magnet or coil, and the connection structural members are magnetic disk, magnetic conductive ring, iron core and / or positioning pin; there is also one or two shrapnels, and the shrapnel is divided into a central part and a peripheral part, and the central part and the peripheral part are connected by branches or stems, and the branches have one or more bends or turns, so that the effective length of the shrapnel branches is increased, the stiffness coefficient of the shrapnel is reduced, and thus a lower first resonance frequency is obtained, and the shrapnel connects the external structural member of the stator assembly and the mover assembly.

5. The push-pull oscillator of the straight interleaved type according to claim 4, wherein The external structural member surrounds the magnet, the coil and the isolation frame, and is an independent single shell or a shell composed of multiple components together, and there is one or more hollow parts on the shell.

6. The straight interleaved push-pull oscillator according to claim 4, wherein The material of the external structural member is located at [0.05, ∞]*10 6 Rayleigh (kg / m2·s). In this way, when vibration propagates from the external structural member to the air, the wave attenuation at the interface between the two media of the external structural member and the air is relatively large, thereby reducing sound leakage; the material is hard plastic, metal, ceramic, glass, wood, plastic alloy, glass fiber reinforced plastic, carbon fiber reinforced plastic, nylon glass fiber composite material or PC / PMMA composite board.

7. The push-pull oscillator of the straight interleaved type according to claim 4, characterized in that, The external structural member is a material with a high Young's modulus, a material with a Young's modulus greater than 1 GPa. The material with a high Young's modulus makes the vibration transmission attenuation of medium and high frequency vibrations smaller; the material of the external structural member is preferably a good conductor of heat, which can accelerate the heat dissipation when the oscillator works; the external structural member is a magnetic material, which can reduce the magnetic resistance around the coil, improve the sensitivity of the oscillator, and enhance the vibration feeling.

8. The flat interleaved push-pull oscillator according to claim 4, wherein, The isolation frame is placed between the coil or the magnet, and is relatively fixed to the external structural member and the coil or the magnet, and the isolation frame is a magnetic conductive material or a non-magnetic conductive material.

9. The push-pull oscillator of the straight interleaved type according to claim 1, wherein The shrapnel includes a flat piece body, the flat piece body includes a central part and a peripheral part, several discontinuous through holes or through grooves are formed on the flat piece body, and the central part and the peripheral part are connected by at least two connecting branches, and the connecting branches are rotationally symmetric in a single group or rotationally symmetric in multiple groups; The shrapnel is connected to the external structural member of the stator assembly and the shrapnel connecting member of the rotor assembly; One or several of the branches of the shrapnel have bends or turns, so that the effective length of the shrapnel branches is increased, the stiffness coefficient of the shrapnel is reduced, and thus a lower first resonance frequency is obtained; The branches of the shrapnel are located on a plane or are three-dimensionally staggered; The shrapnel is made of metal, which is stainless steel, beryllium copper or titanium alloy; The central part of the shrapnel can be a circular, rectangular, elliptical regular or irregular figure, and the peripheral part is a closed ring or a discontinuous ring or block; The peripheral part of the shrapnel is a complete outer frame or is disconnected. When there is a complete outer frame, the outer frame of the shrapnel is fixed to the external structural member of the stator assembly; when the outer frame is disconnected, one end of the shrapnel is fixed to the external structural member of the stator assembly.

10. Application of a push-pull oscillator of the straight interleaved type according to any one of claims 1 to 9, characterized in that, Applicable to bone conduction headphones, bone conduction glasses, wired headphones, wireless headphones, AR glasses, VR glasses, smart watches, smart bracelets, head-mounted devices, wearable devices, smart phones, game controllers, game headphones, game steering wheels, game pedals, mice, keyboards, touch screens, electrical control panels, touch control devices, screen sound-emitting 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 aid devices, sleep aid devices or haptic feedback network interconnection devices.

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