CN115361640B - A magnetic suspension type vibration isolation method and vibration isolation device, and electronic equipment - Google Patents
A magnetic suspension type vibration isolation method and vibration isolation device, and electronic equipment Download PDFInfo
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- CN115361640B CN115361640B CN202211135415.0A CN202211135415A CN115361640B CN 115361640 B CN115361640 B CN 115361640B CN 202211135415 A CN202211135415 A CN 202211135415A CN 115361640 B CN115361640 B CN 115361640B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a magnetic levitation type vibration isolation method, a vibration isolation device and electronic equipment, wherein the magnetic levitation type vibration isolation method is applied to the magnetic levitation type vibration isolation device, the magnetic levitation type vibration isolation device comprises a magnetic levitation system and a loudspeaker module, the magnetic levitation type vibration isolation method comprises the following steps of adjusting the direct current for supplying power to an electromagnet according to the frequency and the amplitude of an audio signal of the loudspeaker module, reducing the direct current for supplying power to the electromagnet when the frequency and the amplitude of an input signal enable the loudspeaker to vibrate greatly, controlling the magnetic force of the electromagnet to keep the loudspeaker module in levitation, and increasing the direct current for supplying power to the electromagnet when the frequency and the amplitude of the input signal enable the loudspeaker to vibrate less, and controlling the electromagnet to output strong magnetic force to levitate the loudspeaker module. A magnetic suspension type vibration isolation device comprises a magnetic suspension system and a loudspeaker module, wherein the magnetic suspension system is used for keeping the loudspeaker module in suspension.
Description
Technical Field
The application relates to the technical field of loudspeaker devices, in particular to a magnetic suspension type vibration isolation method, a vibration isolation device and electronic equipment.
Background
The embedded speaker is widely applied to mobile equipment and household appliances. With the development of technology, the requirements of users on the sound playing quality of such products are also improved, and in particular, higher requirements are put on the aspects of bandwidth, distortion and the like of a speaker system, and even special sound products are used as standard products. Unlike audio products, these products using embedded speakers only have a part of the functions of sound playing, but they also need to have other functions, which may conflict with the playing of speakers in practical designs.
For example, a notebook computer, a television and a projector are internally provided with a loudspeaker, so that audio output is facilitated, when the loudspeaker outputs sound, the electromagnetic coil and the vibrating diaphragm vibrate to generate vibration, vibration of the vibrating diaphragm is transmitted to air, sound waves drive the air to vibrate, so that a user hears the audio output by the loudspeaker, when the loudspeaker outputs sound, the loudspeaker not only drives the air to vibrate, but also vibrates its own component structure to drive other parts, such as a shell, a box and the like, which are connected with the loudspeaker and are provided with the loudspeaker, to be adjacent to the loudspeaker to vibrate together, because of vibration, for example, a mechanical keyboard on the notebook computer and a shell on the television are extremely easy to generate vibration noise under the operation drive of an embedded loudspeaker, and an optical machine on the projector also can influence the output picture quality because of vibration generated by the operation of the loudspeaker, so that the use experience of the user is seriously influenced.
In the prior art, in order to avoid the phenomenon, the vibration isolation gasket 5 shown in fig. 20 and 21 is used for connecting fixed points of the loudspeaker in the box body and the shell of the electronic product to isolate, the vibration isolation gasket 5 is generally made of solid rubber materials, and the purpose of avoiding the loudspeaker to drive the inner wall, the shell and other parts of the electronic device to vibrate is achieved by utilizing the characteristic of the material and the absorption attenuation of the vibration isolation gasket 5 and relying on the material characteristic of the vibration isolation gasket 5, but the vibration isolation effect of the vibration isolation gasket 5 is limited. The problem of vibration cannot be completely solved, so that the problem caused by vibration still exists in the equipment using the embedded loudspeaker, and in order to eliminate the problem, the output of the embedded loudspeaker in a part of frequency bands is reduced, and the playing tone quality is reduced.
Disclosure of Invention
The invention mainly aims at the problems, provides a magnetic suspension type vibration isolation method, a vibration isolation device and electronic equipment, and aims to solve the technical problems in the background technology.
The invention provides a magnetic suspension type vibration isolation method which is applied to a magnetic suspension type vibration isolation device, wherein the magnetic suspension type vibration isolation device comprises a magnetic suspension system and a loudspeaker module, the loudspeaker module is suspended by repulsive force generated by electrifying an electromagnet in the magnetic suspension system, and the magnetic suspension type vibration isolation method comprises the following steps of:
According to the frequency and amplitude of the working audio signal of the loudspeaker module, the direct current of the electromagnet is adjusted;
when the frequency and the amplitude of the input signal lead the loudspeaker to vibrate greatly, reducing direct current for supplying power to the electromagnet, and controlling the magnetic force of the electromagnet to keep the loudspeaker module to float;
when the frequency and the amplitude of the input signal enable the loudspeaker to vibrate less, the direct current for supplying power to the electromagnet is increased, and the electromagnet is controlled to output strong magnetic force to suspend the loudspeaker module.
Further, when the loudspeaker is in standby, small-current direct current for supplying power to the electromagnet controls the magnetic force of the electromagnet to keep the loudspeaker module to be suspended.
The magnetic suspension type vibration isolation device comprises a magnetic suspension system and a loudspeaker module, wherein the magnetic suspension system is used for keeping the loudspeaker module in suspension.
The magnetic levitation system further comprises a first magnetic body, a second magnetic body and a third magnetic body, wherein the magnetization directions of the first magnetic body and the second magnetic body are the same, the third magnetic body is located between the first magnetic body and the second magnetic body, a levitation moving area is arranged between the third magnetic body and the first magnetic body and between the third magnetic body and the second magnetic body, the magnetization direction of the third magnetic body is opposite to the magnetization directions of the first magnetic body and the second magnetic body, and the loudspeaker module is provided with a connecting part connected with the third magnetic body.
Further, the first magnetic body, the second magnetic body and the third magnetic body are all permanent magnets.
Further, the first magnetic body and/or the second magnetic body and/or the third magnetic body are/is an electromagnet.
The electronic equipment comprises the magnetic suspension system and the loudspeaker module, wherein the magnetic suspension system and the loudspeaker module are arranged in an inner cavity of the electronic equipment, and the magnetic suspension system isolates the loudspeaker module from contacting with the inner wall of the electronic equipment.
The electronic equipment further comprises a lower shell and an upper cover which can be covered, wherein the first magnetic body and the second magnetic body are respectively arranged on the inner walls of the lower shell and the upper cover.
Further, the electronic equipment comprises a supporting piece connected with the inner wall of the electronic equipment, the first magnetic body is mounted on the inner wall of the electronic equipment, and the second magnetic body is mounted on the supporting piece.
Compared with the prior art, the magnetic suspension type vibration isolation method, the vibration isolation device and the electronic equipment provided by the invention can suspend the speaker module through the magnetic suspension system, the speaker module is elevated, and the speaker module is not contacted any more by directly connecting the speaker module with the inner wall inside the electronic product or adjusting the surface contact or the line contact or the point contact of the speaker module with the inner connection of the electronic product through the traditional vibration isolation gasket, so that when the speaker module works and sounds, the vibration of the speaker module is greatly prevented from being transmitted to the box body or the shell of the electronic product and other parts adjacent to the speaker module, and the unexpected vibration of a user is prevented from being caused.
Drawings
Fig. 1 is a schematic side view of a seventeenth embodiment of the present application.
Fig. 2 is an exploded view of the structures of the first, fourth and seventeenth embodiments of the present application.
Fig. 3 is a schematic diagram of an eighteenth embodiment of the present application.
Fig. 4 is an exploded view of a eighteenth embodiment of the present application.
Fig. 5 is an exploded view of a seventeenth embodiment of the present application.
Fig. 6 is a schematic diagram of a seventeenth embodiment of the second, third and seventeenth embodiments of the present application.
Fig. 7 is an exploded view of seventeen structures according to the second, third and seventeen embodiments of the present application.
Fig. 8 is a schematic diagram of a second embodiment, a third embodiment, and a eighteenth embodiment of the present application.
Fig. 9 is a schematic diagram of a third embodiment of the present application.
Fig. 10 is a schematic diagram of a fourth embodiment of the present application.
Fig. 11 is a fifth cross-sectional schematic of an embodiment of the application.
Fig. 12 is a schematic diagram of a sixth embodiment of the present application.
Fig. 13 is a schematic diagram of a seventh embodiment of the present application.
Fig. 14 is a schematic view of an eighth embodiment of the present application.
Fig. 15 is a schematic diagram of a ninth embodiment of the present application.
Fig. 16 is a schematic view showing a tenth structure of the embodiment of the present application.
Fig. 17 is a schematic diagram of an eleventh embodiment of the present application.
Fig. 18 is a schematic diagram showing a twelve structure of an embodiment of the present application.
Fig. 19 is a schematic view showing a thirteenth structure of the embodiment of the application.
Fig. 20 is a schematic view of a prior art vibration isolation gasket.
Fig. 21 is an exploded view of a prior art speaker module connected to an inner wall of an electronic product or a side wall of a housing through a vibration isolation gasket.
The reference numerals shown in the figure comprise 1, a magnetic suspension system, 110, a first magnetic body, 120, a second magnetic body, 130, a third magnetic body, 140, a suspension activity area, 2, a loudspeaker module, 201, a loudspeaker unit, 202, a loudspeaker module shell, 210, a connecting part, 3, an inner wall of an electronic device, 310, a lower shell, 320, an upper cover, 330, a clamping groove, 4, a supporting piece, 5, a vibration isolation gasket and 6, and a limiting piece.
Detailed Description
The embodiment provides a magnetic suspension type vibration isolation method which is applied to a magnetic suspension type vibration isolation device, wherein the magnetic suspension type vibration isolation device comprises a magnetic suspension system and a loudspeaker module, the loudspeaker module is suspended by repulsive force generated by electrifying an electromagnet in the magnetic suspension system, and the magnetic suspension type vibration isolation method comprises the following steps of:
According to the frequency and amplitude of the working audio signal of the loudspeaker module, the direct current of the electromagnet is adjusted;
When the vibration transmission of the loudspeaker is large, the direct current for supplying power to the electromagnet is reduced, the compliance of the suspension system is improved, and the transmission of the vibration is reduced;
When the vibration transmission of the loudspeaker is small, the direct current for supplying power to the electromagnet is increased, the compliance of the suspension system is reduced, the suspension system has enough supporting force, and the efficiency of outwards radiating sound of the loudspeaker module is maximized.
The method comprises the steps of generating vibration by a loudspeaker, transmitting emitted energy by the wave, wherein the wave transmission characteristic is that the former particle in the medium sequentially drives the latter particle to vibrate along the wave transmission direction, forming an energy wave which is diffused towards the periphery of the loudspeaker by using the loudspeaker as a wave source, generating sound waves of sound which can be heard by human ears when the wave is transmitted to the medium in the air, and causing mechanical vibration, shaking and noise which are not expected to be generated by a user to influence the use experience when the wave is transmitted to solid mediums such as a box body, a shell and other electronic components which are connected and adjacent to the loudspeaker.
The magnetic suspension type vibration isolation method enables the loudspeaker module to suspend through repulsive force generated by electrifying the electromagnet in the magnetic suspension system, the loudspeaker is lifted, the loudspeaker is directly connected with the inner wall inside the electronic product or is adjusted to be not contacted any more through the traditional surface contact of the vibration isolation gasket 5 connected with the inner wall of the electronic product, therefore, when the loudspeaker works and sounds and vibrates, the limitation that the compliance of the vibration isolation gasket 5 of the existing design completely depends on the physical properties of materials is broken through, the vibration of the loudspeaker is greatly prevented from being transmitted to the box body or the shell of the electronic product and other parts adjacent to the loudspeaker, and the unexpected vibration of a user is prevented from being caused.
The vibration generates power when the loudspeaker plays the audio, when the weak magnetic force generated by electrifying the electromagnet of the magnetic suspension system causes the repulsive force of the magnetic parts of the magnetic suspension system to be smaller, namely, the loudspeaker module is more easily movable under the lifting of the magnetic suspension system due to the sounding vibration of the loudspeaker, the compliance of the suspension system is large, the resonance frequency of the system is small, the outward propagation of the vibration through the reaction force can be effectively avoided, the amplitude of the module is larger, and the phenomenon is generated when the current for electrifying the electromagnet is proper small current;
When the compliance of the suspension system is small, namely, the electromagnet of the magnetic suspension system is electrified with high current to generate a strong magnetic field, the lifting rigidity of the loudspeaker module is improved, and the loudspeaker module is difficult to move, the vibration isolation performance of the loudspeaker module is poor under the condition, but the playing efficiency of the loudspeaker is high. Therefore, the invention correspondingly adjusts the value of the direct current value for powering on the electromagnet in the magnetic suspension system in real time according to the frequency and the amplitude of the audio signal aiming at audio playing, reduces the direct current for powering on the electromagnet when the vibration of the loudspeaker is large, controls the magnetic force of the electromagnet to keep the loudspeaker module to float, increases the direct current for powering on the electromagnet when the vibration of the loudspeaker is small, and controls the electromagnet to output strong magnetic force to float the loudspeaker module, namely controls the compliance of the suspension system, so as to achieve the effect of optimizing audio playing.
Further, when the loudspeaker is in standby, the electromagnet is controlled to magnetically keep the loudspeaker module to be suspended by the small-current direct current which supplies power to the electromagnet.
When the loudspeaker is in standby, the loudspeaker module is also kept to be suspended, otherwise, the electromagnet is powered off, and when the electromagnet and the permanent magnet are arranged in the magnetic suspension system, the permanent magnet can adsorb the loudspeaker module to any side;
therefore, the magnetic suspension system is deviated, and when the magnetic suspension system is electrified again, the permanent magnet or the electromagnet in the magnetic suspension system cannot fall into a magnetic field trap, so that the loudspeaker module cannot be suspended successfully, or the loudspeaker module is deviated in a suspended manner, and the vibration isolation function is affected;
When the loudspeaker is in standby power-off state, the electromagnet in the magnetic suspension system is still electrified, the electrified direct current is small enough to enable the magnetic force and repulsive force generated by the electromagnet to overcome the gravity of the loudspeaker module, the loudspeaker module is ensured not to deviate, the suspended part of the loudspeaker module still falls in the design range, and when the loudspeaker module needs to output audio frequency to work, the loudspeaker module can continue to suspend normally after being electrified.
Because the loudspeaker modules with different specifications have different weights and are subjected to different weights, the current of the electromagnet in the magnetic suspension system needs to be checked and determined, so that the magnetic force and repulsive force generated by the electromagnet can overcome the weight of the loudspeaker module and ensure that the current of the loudspeaker module is not deviated to the minimum value.
Referring to fig. 2-19, the invention provides a magnetic suspension vibration isolation device, which comprises a magnetic suspension system 1 and a speaker module 2, wherein the magnetic suspension system 1 is used for keeping the speaker module 2 in suspension.
The magnetic suspension type vibration isolation device enables the loudspeaker module 2 to suspend through the magnetic suspension system 1, the loudspeaker module 2 is lifted, the loudspeaker module 2 is originally directly connected with the inner wall inside an electronic product or is adjusted to be in no contact with the loudspeaker module 2 through the surface contact of the traditional vibration isolation gasket 5 and the inner connection of the electronic product, thus when the loudspeaker module 2 works and sounds, the limitation that the compliance of the vibration isolation gasket 5 of the traditional design completely depends on the physical properties of materials is broken through when vibration occurs, the vibration of the loudspeaker module 2 is greatly prevented from being transmitted to the box body or the shell of the electronic product and other parts adjacent to the loudspeaker module 2, and the unexpected vibration of a user is prevented from being caused.
Referring to fig. 2-19, the magnetic levitation system 1 includes a first magnetic body 110, a second magnetic body 120, and a third magnetic body 130, wherein the magnetization directions of the first magnetic body 110 and the second magnetic body 120 are the same, the third magnetic body 130 is located between the first magnetic body 110 and the second magnetic body 120, a levitation moving area 140 is provided between the third magnetic body 130 and the first magnetic body 110 and between the third magnetic body 130 and the second magnetic body 120, the magnetization direction of the third magnetic body 130 is opposite to the magnetization directions of the first magnetic body 110 and the second magnetic body 120, and the speaker module 2 is provided with a connection portion 210 connected with the third magnetic body 130.
With this arrangement, the first magnetic body 110 and the second magnetic body 120 each generate magnetic force to the third magnetic body 130 to form a magnetic trap, and therefore the third magnetic body 130 can be suspended by the first magnetic body 110 and the second magnetic body 120, and can be moved when receiving the internal force of the vibration of the speaker module 2 in the suspended moving area 140, and the speaker module 2 of the third magnetic body 130 can be suspended by the magnetic trap and the third magnetic body 130 through the connection portion 210.
The speaker module 2 includes a speaker unit 201 and a speaker module case 202 to which the speaker unit 201 is attached;
Referring to fig. 1, 3 and 5, in a first embodiment
The connection portion 210 is a connection groove provided on an end surface of the speaker module housing 202, and the third magnetic body 130 is embedded in the connection groove and is integrally connected with the speaker module 2.
Referring to fig. 6-8, a second embodiment
The connection portion 210 is a connection arm disposed at the outer edge of the speaker module housing 202, a connection groove is disposed on the connection arm, and the third magnetic body 130 is embedded in the connection groove and is connected with the speaker module 2 as a whole.
In some embodiments, the first magnetic body 110, the second magnetic body 120, and the third magnetic body 130 are all permanent magnets.
Referring to fig. 6-9, a third embodiment
The first magnetic body 110 and the second magnetic body 120 of the magnetic levitation system 1 are in a circular ring structure, and the third magnetic body 130 is in a cylindrical sheet structure and is positioned between the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 1, 2, 4 and 10, a fourth embodiment is shown
The first magnetic body 110 and the second magnetic body 120 of the magnetic levitation system 1 are in a circular ring structure, and the third magnetic body 130 is in a cylindrical structure and is positioned between the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 5 and 11, a fifth embodiment
The first magnetic body 110 and the second magnetic body 120 of the magnetic suspension system 1 are in a circular ring structure, the third magnetic body 130 is two cylindrical pieces, and the two cylindrical pieces are arranged in the connecting groove of the loudspeaker module shell 202 at intervals, so that the form is suitable for the situation that the volume of the loudspeaker module 2 is thicker, the material consumption of the third magnetic body 130 in the fourth embodiment is saved, the weight is reduced, and the cost is saved.
Referring to fig. 12, embodiment six
The first magnetic body 110 and the second magnetic body 120 of the magnetic suspension system 1 are of circular ring structures formed by three spaced circular arc-shaped magnetic sections, the third magnetic body 130 is of a cylindrical sheet structure and is positioned between the first magnetic body 110 and the second magnetic body 120, the materials of the first magnetic body 110 and the second magnetic body 120 are reduced, the cost is saved, and the magnetic suspension effect of the magnetic suspension system 1 on the loudspeaker module 2 can be ensured.
Referring to fig. 13, a seventh embodiment
The first magnetic body 110 and the second magnetic body 120 of the magnetic suspension system 1 are of circular ring structures formed by four spaced circular arc-shaped magnetic sections, the third magnetic body 130 is of a cylindrical sheet structure and is positioned between the first magnetic body 110 and the second magnetic body 120, the materials of the first magnetic body 110 and the second magnetic body 120 are reduced, the cost is saved, and the magnetic suspension effect of the magnetic suspension system 1 on the loudspeaker module 2 can be ensured.
Referring to FIG. 14, an eighth embodiment
The first magnetic body 110 and the second magnetic body 120 of the magnetic levitation system 1 are both square magnetic sheet structures having square inner holes, and the third magnetic body 130 (not shown) is located between the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 15, embodiment nine
The first magnetic body 110 and the second magnetic body 120 of the magnetic levitation system 1 are both square magnetic sheet structures having circular inner holes, and the third magnetic body 130 (not shown) is located between the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 16, a tenth embodiment
The first magnetic body 110 and the second magnetic body 120 of the magnetic levitation system 1 are both cylindrical magnetic sheet structures having square inner holes, and the third magnetic body 130 (not shown) is located between the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 17, embodiment eleven
In the magnetic levitation system 1, the first magnetic body 110 and the second magnetic body 120 are four square magnetic sheets distributed and arranged, the third magnetic body 130 is in a cylindrical sheet structure and is positioned between the first magnetic body 110 and the second magnetic body 120, and preferably, the four square magnetic sheets of the first magnetic body 110 and the second magnetic body 120 are uniformly distributed along the axial line of the third magnetic body 130.
Referring to fig. 18, a twelfth embodiment
In the magnetic levitation system 1, the first magnetic body 110 and the second magnetic body 120 are all three cylindrical magnetic sheets distributed, the third magnetic body 130 is in a cylindrical sheet structure and is located between the first magnetic body 110 and the second magnetic body 120, and preferably, the three cylindrical magnetic sheets of the first magnetic body 110 and the second magnetic body 120 are uniformly distributed along the axial line of the third magnetic body 130.
Referring to FIG. 19, a thirteenth embodiment
In the magnetic levitation system 1, the first magnetic body 110 and the second magnetic body 120 are three square magnetic sheets distributed and arranged, the third magnetic body 130 (not shown) is positioned between the first magnetic body 110 and the second magnetic body 120, and preferably, the three square magnetic sheets of the first magnetic body 110 and the second magnetic body 120 are uniformly distributed along the axial direction of the third magnetic body 130.
In some embodiments, the first magnetic body 110 and/or the second magnetic body 120 and/or the third magnetic body 130 are electromagnets (not shown).
Examples fourteen
The first magnetic body 110 and the second magnetic body 120 are electromagnets, and the third magnetic body 130 is a permanent magnet.
Example fifteen
The third magnetic body 130 is an electromagnet, and the first magnetic body 110 and the second magnetic body 120 are permanent magnets.
Examples sixteen
The first magnetic body 110, the second magnetic body 120, and the third magnetic body 130 are electromagnets.
Referring to fig. 1-19, the embodiment provides an electronic device, which includes the magnetic suspension system 1 and the speaker module 2, wherein the magnetic suspension system 1 and the speaker module 2 are disposed in an inner cavity of the electronic device, and the magnetic suspension system 1 isolates the speaker module 2 from contacting with an inner wall 3 of the electronic device.
In order to facilitate the observation of the connection structure between the inner wall 3 of the electronic device and the speaker module 2 through the magnetic suspension system 1 in the inner cavity of the electronic product, the inner wall 3 of the electronic device shown in fig. 1-8 is a part of the side wall of the electronic product.
In the embedded loudspeaker box structure, the magnetic suspension system 1 is utilized to form a suspension system at the position where the loudspeaker module 2 is connected and fixed with the inner wall 3 of the electronic equipment, so that the transmission of sound production vibration of the loudspeaker module 2 on a transmission link is greatly avoided, and the influence of the vibration of the loudspeaker module 2 on other components is relieved.
The electronic device includes a lower case 310 and an upper case 320 that can be closed, and the first magnetic body 110 and the second magnetic body 120 are respectively mounted on the inner walls of the lower case 310 and the upper case 320.
Referring to fig. 1, 2 and 5-7, a seventeenth embodiment is shown
In this embodiment, the first magnetic body 110 and the second magnetic body 120 are respectively mounted on the inner walls of the lower housing 310 and the upper cover 320, and may be fixed to each other by gluing, that is, after the upper cover 320 and the lower housing 310 are assembled by being covered, a magnetic trap is formed, and the speaker module 2 is lifted and suspended by pushing in the side of the third magnetic body 130, which connects the speaker module 2 and the speaker module 2, to form the magnetic suspension system 1.
The third magnetic body 130 connected to the speaker module 2 and the speaker module 2 may be placed in advance above the second magnetic body 120 corresponding to the lower case 310, and the upper cover 320 may be further covered on the speaker module 2 so that the first magnetic body 110 corresponds to the third magnetic body 130.
Preferably, the lower case 310 and the upper cover 320 are provided with the holding grooves 330, and the holding grooves 330 are configured to fasten the first magnetic body 110 and the second magnetic body 120, respectively, and to save space occupied by the first magnetic body 110 and the second magnetic body 120, respectively.
Referring to fig. 3, 4 and 8, an embodiment eighteen
The electronic device comprises a support 4 connected with the inner wall 3 of the electronic device, the first magnetic body 110 is mounted on the inner wall 3 of the electronic device, and the second magnetic body 120 is mounted on the support 4.
In the seventeenth embodiment, in the manner of mounting the first magnetic body 110 and the second magnetic body 120 on the inner walls of the lower case 310 and the upper cover 320, respectively, when the third magnetic body 130 connected to the speaker module 2 later constitutes the magnetic levitation system 1, the mounting success rate is low, the worker is not limited to the operation, the third magnetic body 130 and the first magnetic body 110 and the second magnetic body 120 are easy to not deviate from alignment, the operation difficulty is high, and the debugging is difficult.
In this embodiment, by providing the support 4, preferably, the support 4 is vertically connected by two support plates, so as to form a structure with an L-shaped side view projection, one of the two support plates is vertical to the inner wall 3 of the electronic device, and the other support plate is parallel to the inner wall 3 of the electronic device, so that the first magnetic body 110 is mounted on the inner wall 3 of the electronic device, after the first magnetic body 110 is mounted on the inner wall 3 of the electronic device, the third magnetic body 130 connected with the speaker module 2 can be conveniently pushed into the mounting space formed by the support 4 and the inner wall 3 of the electronic device laterally, and the third magnetic body 130 correspondingly falls into the magnetic trap formed by the first magnetic body 110 and the second magnetic body 120.
Referring to fig. 2-4, the electronic device preferably further includes a limiting member 6 connected to the inner wall 3 of the electronic device, where the limiting member 6 is configured to enclose the speaker module 2 and limit the speaker module 2.
When some electronic products are not provided with a power supply, or the purpose of saving electricity is achieved, and the electric quantity of a battery is exhausted after long-time power-off, in order to ensure that the speaker module 2 is not deviated after the electromagnet is stopped to be powered, the speaker module 2 can continue to suspend normally after being powered, the suspension part of the speaker module 2 still falls within the design range, and even if the electromagnet is not continuously powered by the hardware limiting part 6 arranged on the inner wall 3 of the electronic equipment, the speaker module 2 is kept within a certain range under the fence of the limiting part 6, and the deviation of the speaker module 2 is prevented.
The limiting piece 6 can be a vertical plate and a vertical column, the structure of the vertical plate and the vertical column is arranged on the lower shell 310 and/or the upper cover 320, a certain distance is reserved between the vertical plate and the side wall of the periphery of the loudspeaker module 2, the limiting effect is achieved on the loudspeaker module 2, after the electromagnet is powered off, the loudspeaker module 2 falls inside the limiting system, so that the loudspeaker module can be enabled to be suspended at a preset position continuously after being powered on, and the loudspeaker module can be suspended normally.
When the electronic equipment is provided with the supporting piece 4, the supporting piece 4 can also act as a limiting piece 6 from a certain degree, and is matched with the limiting piece 6 to limit the loudspeaker module 2.
Claims (10)
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| CN202211135415.0A CN115361640B (en) | 2022-09-19 | 2022-09-19 | A magnetic suspension type vibration isolation method and vibration isolation device, and electronic equipment |
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| CN202211135415.0A CN115361640B (en) | 2022-09-19 | 2022-09-19 | A magnetic suspension type vibration isolation method and vibration isolation device, and electronic equipment |
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| CN105163229A (en) * | 2015-09-25 | 2015-12-16 | 宁波中荣声学科技有限公司 | Vibration-damping sound box |
| CN111425551A (en) * | 2020-03-20 | 2020-07-17 | 广州小鹏汽车科技有限公司 | Method and device for damping vehicle component and vehicle |
| CN218514502U (en) * | 2022-09-19 | 2023-02-21 | 深圳市德康兴技术有限公司 | Magnetic suspension type vibration isolation device and electronic equipment applying same |
| CN218772395U (en) * | 2022-09-19 | 2023-03-28 | 深圳市德康兴技术有限公司 | Magnetic suspension type vibration isolation device and electronic equipment applying same |
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| ATE224505T1 (en) * | 1999-05-27 | 2002-10-15 | Fev Motorentech Gmbh | METHOD FOR END POSITION CONTROL OF A GAS EXCHANGE VALVE ACTUATED BY AN ELECTROMAGNETIC ACTUATOR ON A PISTON COMBUSTION ENGINE |
| JP4511450B2 (en) * | 2005-11-15 | 2010-07-28 | 福司 川上 | Vacuum magnetic levitation type anti-vibration anechoic box |
| SI25299A (en) * | 2016-10-12 | 2018-04-30 | Mag-Lev Audio D.O.O. | A record player with a record floating on a magnetic pad |
| CN109639184B (en) * | 2018-12-25 | 2020-06-26 | 厦门大学 | A magnetic levitation system for voice-controlled space movement |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163229A (en) * | 2015-09-25 | 2015-12-16 | 宁波中荣声学科技有限公司 | Vibration-damping sound box |
| CN111425551A (en) * | 2020-03-20 | 2020-07-17 | 广州小鹏汽车科技有限公司 | Method and device for damping vehicle component and vehicle |
| CN218514502U (en) * | 2022-09-19 | 2023-02-21 | 深圳市德康兴技术有限公司 | Magnetic suspension type vibration isolation device and electronic equipment applying same |
| CN218772395U (en) * | 2022-09-19 | 2023-03-28 | 深圳市德康兴技术有限公司 | Magnetic suspension type vibration isolation device and electronic equipment applying same |
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| CN115361640A (en) | 2022-11-18 |
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