A co-magnetic field vibration bone sound conduction loudspeaker, earphone and implementation method

Abstract

The application relates to the technical field of electro-acoustic conversion, and provides a common-magnetic-field vibration bone sound conduction loudspeaker in the application embodiment, which comprises a magnetic circuit assembly, a first vibration assembly, a second vibration assembly and a shell. The first vibration assembly and the second vibration assembly are located in a magnetic field provided by the magnetic circuit assembly. The shell is provided with a sound outlet. The shell contains the magnetic circuit assembly, the first vibration assembly and the second vibration assembly. The first vibration assembly causes the shell to vibrate, and the second vibration assembly causes air to vibrate and radiate sound waves through the sound outlet. The application solves the problem of sound generation of the common-magnetic-field vibration assembly, and solves the technical difficulty that the solid medium conduction and air conduction sound sources are gathered in the same loudspeaker sound source in the common magnetic field. The application improves and increases the radiation of various different frequency sound waves to the medium, so that the human ear can hear more stereoscopic, wider frequency, louder and better sound.

Description

Technical Field

[0001] This invention relates to the field of electroacoustic conversion technology, specifically to a co-magnetic field vibration bone conduction loudspeaker, headphones, and a method for implementing them. Background Technology

[0002] Humans can hear sounds because air vibrates through the ear canal and transmits vibrations to the eardrum. The vibrations in the eardrum then stimulate the auditory nerve, allowing us to perceive sound – this is air conduction. Bone conduction speakers, on the other hand, typically transmit sound through the skin, subcutaneous tissue, and bones to the auditory nerve, enabling us to hear sounds.

[0003] In the prior art, in order to improve the sound effect of a loudspeaker, two or more loudspeakers are generally used to emit sound waves of different frequencies, thereby improving the sound effect.

[0004] However, the current method of using two vibrating components to share a single magnetic field is considered undesirable because, theoretically, the vibrations tend to cancel each other out when the sound is produced, as they are simultaneously subjected to the same magnetic field. Furthermore, integrating bone conduction and air conduction into a single loudspeaker and producing sound through a shared magnetic field is also difficult to achieve due to this technical limitation. There is an urgent need for a solution that can overcome the problem of two vibrating components sharing a single magnetic field and produce better sound. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a common magnetic field vibration bone conduction loudspeaker, headphones, and implementation method that overcome or at least partially solve the above problems.

[0006] One embodiment of this application provides a common magnetic field vibration bone conduction loudspeaker, comprising:

[0007] Magnetic circuit assembly, first vibration assembly, second vibration assembly, and housing;

[0008] Both the first vibration component and the second vibration component are located in the magnetic field provided by the magnetic circuit component;

[0009] The housing is provided with a sound outlet;

[0010] The housing accommodates the magnetic circuit assembly, the first vibration assembly, and the second vibration assembly;

[0011] In use, the first vibration component drives the housing to generate low-frequency vibration, which is transmitted to the human auditory system through the human skeleton; the second vibration component drives the air to vibrate and generate mid-to-high frequency radiated sound waves, which are transmitted out of the sound outlet through the air.

[0012] Furthermore, a common magnetic field vibrating bone conduction loudspeaker includes:

[0013] A magnetic circuit assembly for providing a magnetic field to the first and second vibration assemblies;

[0014] The first vibration component provides low-frequency signal transmission, and the second vibration component provides medium- and high-frequency signal transmission.

[0015] The first vibration component and the second vibration component are located in the same magnetic field, and correspondingly convert the input electrical signal into first mechanical vibration and second mechanical vibration; and

[0016] The housing has a sound outlet; the housing accommodates the magnetic circuit assembly, the first vibration assembly, and the second vibration assembly. The first mechanical vibration causes the housing to vibrate, and the second mechanical vibration causes air vibration and radiates sound waves through the sound outlet. The first mechanical vibration has a first vibration frequency and a first phase, and the second mechanical vibration has a second vibration frequency and a second phase. The first vibration frequency and the second vibration frequency have an absolute difference of 20 to 20,000 Hz, and the first phase and the second phase have an absolute difference of 90 to 180 degrees.

[0017] Furthermore, the magnetic circuit assembly mainly includes a magnet, a first magnetic conductive element, and a second magnetic conductive element, forming two independent magnetic fields with opposite polarities to drive the first vibration assembly and the second vibration assembly respectively.

[0018] Furthermore, it also includes brackets, springs, and / or connectors;

[0019] The bracket is disposed around the magnetic circuit assembly and is connected to the first vibration assembly and the second vibration assembly.

[0020] The spring plate connects the bracket to the housing; the connector connects the first vibration component and the housing.

[0021] Furthermore, the first panel of the housing is connected to the first vibration assembly via the connector.

[0022] Furthermore, the first vibration component and the second vibration component share the magnetic field, and the phase difference between their corresponding first phase and second phase is 180 degrees.

[0023] Furthermore, the first vibration component and the second vibration component share the magnetic field, wherein the first vibration component has a first vibration frequency and a first phase, the second vibration component has a second vibration frequency and a second phase, and the first phase and the second phase have an absolute difference of 90 to 180 degrees.

[0024] Furthermore, the first magnetic conductive element is a T-shaped lower magnetic conductive plate, the second magnetic conductive element is an annular upper magnetic conductive plate, and the magnet between the T-shaped lower magnetic conductive plate and the annular upper magnetic conductive plate is at least one magnet, wherein when the magnet is formed by combining two or more magnets, the polarity of the previous magnet is opposite to that of the next magnet.

[0025] Furthermore, it also includes a first coil and a second coil; the first coil is connected to the first vibration component, and the second coil is connected to the second vibration component, wherein at least a portion of both the first coil and the second coil is located within the magnetic field and moves within the magnetic field under the drive of an electrical signal.

[0026] Furthermore, the housing includes a first panel for conducting vibrational sound waves and a housing cavity, the first panel and the housing forming a closed space; the side of the housing cavity is provided with at least one sound outlet for pushing air to transmit radiated sound waves.

[0027] Furthermore, the frequencies of the vibrating sound wave and the radiated sound wave are superimposed and complementary.

[0028] In one embodiment of this application, an earphone is provided, the earphone including an earphone headband or ear hook, and a sound-generating component connected to the headband or ear hook;

[0029] The sound-generating component encapsulates the aforementioned co-magnetic field vibration bone conduction loudspeaker.

[0030] One embodiment of this application provides a method for achieving bone acoustic conduction via co-magnetic field vibration, comprising:

[0031] Acquire radio wave signals carrying audio;

[0032] The electromagnetic wave signal is converted into a first mechanical vibration signal and a second mechanical vibration signal by a preset common magnetic field, a first vibration component and a second vibration component; wherein the absolute phase difference between the first mechanical vibration signal and the second mechanical vibration signal is 90~180 degrees and the absolute frequency difference is 20~20000Hz.

[0033] The first mechanical vibration signal is restored to a vibratory sound wave through a solid medium, and the second mechanical vibration signal is restored to a gas-conducted sound wave through an air medium.

[0034] This application has the following advantages:

[0035] In the embodiments of this application, a magnetic circuit assembly, a first vibration assembly, a second vibration assembly, and a housing are used. Both the first and second vibration assemblies are located within the magnetic field provided by the magnetic circuit assembly. The housing has a sound outlet. The housing accommodates the magnetic circuit assembly, the first vibration assembly, and the second vibration assembly. The first vibration assembly causes the housing to vibrate, and the second vibration assembly causes air to vibrate and radiate sound waves through the sound outlet. This invention solves the problem of sound generation by a common magnetic field vibration assembly, and addresses the technical difficulty of integrating solid-state medium-conducted and air-conducted sound sources into the same speaker sound source within a common magnetic field. It improves and increases the radiation of multiple different frequency sound waves into the medium, enabling the human ear to hear a more three-dimensional, wider-frequency, louder, and better-quality sound. Attached Figure Description

[0036] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and these exemplary embodiments will be described in detail with reference to the drawings. These embodiments are not limiting. In these embodiments, the same numbers represent similar structures. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the axial cross-sectional structure of a common magnetic field vibration bone acoustic conduction loudspeaker provided in an embodiment of this application.

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0039] 101. First magnetic conductive element; 102. Second magnetic conductive element; 201. Support; 202. Housing; 301. Magnet; 401. Second coil; 402. First coil; 501. First vibration assembly; 502. Spring; 503. Second vibration assembly; 601. Connector; 701. Sound outlet. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Reference Figure 1This application illustrates a common magnetic field vibration bone conduction loudspeaker according to an embodiment of the present application, specifically including: a magnetic circuit assembly, a first vibration assembly 501, a second vibration assembly 503, and a housing 202; the first vibration assembly 501 and the second vibration assembly 503 are both located in the magnetic field provided by the magnetic circuit assembly; the housing 202 is provided with a sound outlet 701; the housing 202 accommodates the magnetic circuit assembly, the first vibration assembly 501, and the second vibration assembly 503; in use, the first vibration assembly 501 drives the housing 202 to generate low-frequency vibration, which is transmitted to the human auditory system through human bone conduction; the second vibration assembly 503 drives air vibration to generate mid-to-high frequency radiated sound waves, which are transmitted through the air and exit through the sound outlet 701, and the second vibration assembly 503 causes air vibration and radiates sound waves through the sound outlet 701.

[0042] It should be noted that the frequency range of low-frequency vibration described in this application includes 0~300Hz; the frequency range of mid-to-high frequency vibration includes 301~20000Hz.

[0043] This invention solves the problem of sound generation in a common magnetic field vibration component, as well as the technical difficulty of combining solid medium conduction and air conduction sound sources into the same speaker sound source in a common magnetic field. It improves and increases the radiation of various sound waves of different frequencies into the medium, enabling the human ear to hear a more three-dimensional, wider frequency range, louder sound, and better effect.

[0044] In the above embodiments, a magnetic circuit assembly is used to provide a magnetic field; a first vibration assembly provides low-frequency signal transmission, and a second vibration assembly provides mid-to-high-frequency signal transmission; the first and second vibration assemblies are located in the magnetic field and convert the input electrical signal into a mechanical vibration signal; and a housing includes a first panel facing the human body and a back surface opposite to the first panel, the housing accommodating the first and second vibration assemblies, the first vibration assembly causing the first panel to vibrate, the vibration of the first panel having a first phase, and the vibration of the back surface opposite to the housing having a second phase, wherein the first vibration frequency and first phase of the first panel and the second vibration frequency and second phase of the back surface opposite to the housing have absolute differences, wherein the phase difference is 90~180 degrees and the frequency difference is 20~20000Hz.

[0045] The following will further describe a common magnetic field vibrating bone acoustic conduction loudspeaker in this exemplary embodiment.

[0046] Reference Figure 1This application illustrates a common magnetic field vibration bone conduction loudspeaker according to an embodiment of the present application, specifically including: a magnetic circuit assembly, a first vibration assembly 501, a second vibration assembly 503, and a housing 202; the first vibration assembly 501 and the second vibration assembly 503 are both located in the magnetic field provided by the magnetic circuit assembly; the housing 202 is provided with a sound outlet 701; the housing 202 accommodates the magnetic circuit assembly, the first vibration assembly 501, and the second vibration assembly 503; in use, the first vibration assembly 501 drives the housing 202 to generate low-frequency vibration, which is transmitted to the human auditory system through human bone conduction; the second vibration assembly 503 drives air vibration to generate mid-to-high frequency radiated sound waves, which are transmitted out of the sound outlet 701 through the air; the magnetic circuit assembly mainly includes a magnet 301, a second magnetic conductive element 102, and a first magnetic conductive element 101, forming two independent magnetic fields with opposite polarities to drive the first vibration assembly 501 and the second vibration assembly 503 respectively.

[0047] In the above embodiments, the above structure overcomes the problem of two different vibration components being placed in the same magnetic field and simultaneously converting electrical signals into different vibration outputs. One of the vibrations is used as bone conduction vibration, while the other vibration drives air conduction of sound waves. The phase and frequency of the two audio frequencies can be complementary, enabling two independent vibration components to work simultaneously in the same magnetic field, achieving better results than a single vibration component.

[0048] It should be noted that in the embodiments of this application, the positions of the first vibration component 501 and the second vibration component 503 can be interchanged to achieve the same effect.

[0049] In one embodiment of this application, the magnetic circuit assembly includes a hollow annular magnet 301, a first coil 402, and a T-shaped first magnetic conductive element 101 and a second magnetic conductive element 102. The first magnetic conductive element 101 and the second magnetic conductive element 102 are disposed opposite to each other on both sides of the magnet 301, and the protruding portion of the first magnetic conductive element 101 passes through the middle portion of the magnet 301. The second magnetic conductive element has an opening in the hollow position of the magnet 301. One end of the first coil 402 is connected to the first vibration assembly 501, and the other end at least partially passes through the opening and is located in the middle portion, and is wound around the periphery of the protrusion of the first magnetic conductive element 101.

[0050] In the above embodiments, the magnetic conductive element can adjust the distribution of the magnetic field (e.g., the magnetic field generated by the magnet 301). In some embodiments, the lower surface of the first magnetic conductive element 101 and the upper surface of the T-shaped column can be connected to a magnet 301 (such as a magnet) and the second magnetic conductive element 102 to form a ring magnetic field to enhance the magnetic field density.

[0051] In one embodiment of this application, it further includes a bracket 201, a spring piece 502, and / or a connector 601; the bracket 201 is disposed around the magnetic circuit assembly and connected to the first vibration assembly 501 and the second vibration assembly 503; the spring piece 502 connects the bracket 201 and the housing 202; the connector 601 connects the first vibration assembly 501 and the housing 202.

[0052] Furthermore, the first panel of the housing 202 is connected to the first vibration assembly via the connector.

[0053] In the above embodiment, the bracket 201 is disposed around the magnetic circuit assembly and connected to the first vibration assembly 501 and the second vibration assembly 503; the spring piece 502 connects the bracket 201 and the housing 202; the spring piece 502 may have moderate elasticity so as to have a damping effect in the process of transmitting vibration, which can reduce the vibration energy transmitted to the housing, thereby effectively suppressing the sound leakage of the bone conduction speaker to the outside caused by the vibration of the housing, and can also help avoid the occurrence of abnormal sound caused by possible abnormal resonance, thereby improving the sound quality.

[0054] In one embodiment of this application, it further includes a bracket 201, a spring piece 502, and / or a connector 601; the bracket 201 is disposed around the magnetic circuit assembly and connected to the first vibration assembly 501 and the second vibration assembly 503; the spring piece 502 connects the bracket 201 and the housing 202; the connector 601 connects the first vibration assembly 501 and the housing 202.

[0055] In the above embodiments, the connector 601 is connected between the first vibration component 501 and the housing 202; the connector 601 may have moderate elasticity so as to have a damping effect in the process of transmitting vibration, which can reduce the vibration energy transmitted to the housing, thereby effectively suppressing the sound leakage of the bone conduction speaker to the outside caused by the vibration of the housing, and can also help avoid the occurrence of abnormal sound caused by possible abnormal resonance, thereby improving the sound quality.

[0056] The transmission components (spring 502 and connector 601) located in different positions inside the housing will also have different effects on the vibration transmission efficiency. In some specific embodiments, the transmission components (spring 502 and connector 601) can make the drive device in different states such as suspension or support.

[0057] In one example, the spring 502 and / or the connector 601 can be a vibration transmission plate with a small thickness. The main body of the vibration transmission plate can be a ring structure with multiple support rods or multiple connecting plates arranged inside the ring structure; wherein, the number of support rods or connecting plates can be two or more.

[0058] In one embodiment of this application, the first vibration component 501 and the second vibration component 503 share the same magnetic field provided by the magnet 301. The first vibration component 501 has a first vibration frequency and a first phase, and the second vibration component 503 has a second vibration frequency and a second phase. The first phase and the second phase have an absolute difference of 90 to 180 degrees. In this application, it is preferred to set the phase difference between the first phase and the second phase to be 180 degrees.

[0059] In the above embodiments, vibrations of different frequencies and phases allow their phases and frequencies to complement each other. In the same loudspeaker or a sound-generating device with a loudspeaker as the main component, low frequencies and mid-to-high frequencies can complement each other, further improving the audio effect and reducing distortion.

[0060] In one embodiment of this application, the first magnetic conductive element 101 is a T-shaped lower magnetic conductive plate, the second magnetic conductive element 102 is an annular upper magnetic conductive plate, and the magnet 301 between the T-shaped lower magnetic conductive plate and the annular upper magnetic conductive plate is at least one magnet. When the magnet 301 is formed by combining two or more magnets, the polarity of the previous magnet is opposite to that of the next magnet.

[0061] In the above embodiments, one or two magnets of opposite polarity are added to enhance the magnetic field, thereby improving the output sensitivity and vibration amplitude of the speaker and devices composed of speakers, such as headphones.

[0062] As an example, the magnet 301 described in this application refers to an element capable of generating a magnetic field, such as a magnet. The magnetic element may have a magnetization direction, which refers to the direction of the magnetic field within the magnetic element. Magnet 301 may include one or more magnets. In some embodiments, the magnet may include a metal alloy magnet, ferrite, etc. The metal alloy magnet may include neodymium iron boron, samarium cobalt, alnicotinic cobalt, iron chromium cobalt, aluminum iron boron, iron-carbon aluminum, or similar, or combinations thereof. The ferrite may include barium ferrite, iron ferrite, manganese ferrite, lithium manganese ferrite, or similar, or combinations thereof.

[0063] In one embodiment of this application, a first coil 402 and a second coil 401 are further included; the first coil 402 is connected to the first vibration component 501, and the second coil 401 is connected to the second vibration component 503, wherein at least a portion of both the first coil 402 and the second coil 401 are located within the magnetic field and move within the magnetic field under the drive of an electrical signal.

[0064] In the above embodiments, when energized, the coil vibrates under the action of Ampere force. The vibration of the coil is transmitted to the first panel and / or the outer shell through the first vibration component 501. The coil interacts with the magnetic circuit component through the magnetic field, and the reaction force on the magnetic circuit component also generates vibration. The vibration of the magnetic circuit component is transmitted to the first panel and / or the outer shell through the second vibration component 503. In some specific implementations, the connector 601 is used as a transmission component, which may include a connecting rod, a connecting column and / or a vibration plate, etc.

[0065] In one embodiment of this application, the housing 202 includes a first panel for conducting vibrational sound waves and a back cover for pushing air to transmit radiated sound waves.

[0066] Furthermore, the frequencies of the vibrating sound wave and the radiated sound wave are superimposed and complementary.

[0067] In the above embodiment, the first panel has a first vibration, and the vibration of the opposite back surface of the outer casing has a second vibration. The first vibration is transmitted through human skin, subcutaneous tissue, and bones, and the second vibration is transmitted by radiating sound waves through the air. This allows bone conduction sound waves and air-radiated sound waves to complement each other.

[0068] One embodiment of this application also discloses an earphone, which is a bone conduction earphone with a common magnetic field vibration. The earphone includes an earphone headband or ear hooks, and a sound-generating component connected to the headband or ear hooks. When the sound-generating component is attached to the headband (which is the earphone headband), the earphone is a headband-type earphone; when the sound-generating component is connected to the ear hooks, the earphone is an ear hook-type earphone. The sound-generating component encapsulates the common magnetic field vibration bone conduction speaker. In use, the sound-generating component is placed near the ear of the human body, and sound is conducted to the ear through bone conduction; the sound outlet radiates sound waves and conducts sound to the ear through the air.

[0069] In one embodiment of this application, a method for achieving bone acoustic conduction via co-magnetic field vibration includes:

[0070] Acquire radio wave signals carrying audio;

[0071] The electromagnetic wave signal is converted into a first mechanical vibration signal and a second mechanical vibration signal by a preset common magnetic field, a first vibration component and a second vibration component; wherein the absolute phase difference between the first mechanical vibration signal and the second mechanical vibration signal is 90~180 degrees and the frequency difference is 20~20000Hz.

[0072] The first or second mechanical vibration signal is restored to a gas-conducted sound wave through an air medium, and another mechanical vibration signal is output as a vibratory sound wave through a solid medium.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0075] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0076] The foregoing has provided a detailed description of a common magnetic field vibration bone conduction speaker, headphones, and implementation method provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A common magnetic field vibrating bone conduction loudspeaker, characterized in that, include: Magnetic circuit assembly, first vibration assembly, second vibration assembly, bracket, spring, connector, and housing; Both the first vibration component and the second vibration component are located in the magnetic field provided by the magnetic circuit component; The housing is provided with a sound outlet; The housing accommodates the bracket, the magnetic circuit assembly, the first vibration assembly, and the second vibration assembly; the bracket is disposed around the magnetic circuit assembly and connected to the first vibration assembly and the second vibration assembly; the bracket is disposed around the second vibration assembly; the spring connects the bracket and the housing, and suspends the bracket, the magnetic circuit assembly, and the second vibration assembly. The connector is connected between the first vibration component and the housing; wherein, the connector is an elastic vibration transmission plate; In use, the first vibration component drives the housing to generate low-frequency vibration, which is transmitted to the ear through the human skeleton; the second vibration component drives the air to vibrate and generate mid-to-high frequency radiated sound waves, which are transmitted out of the sound outlet through the air.

2. The co-magnetic field vibrating bone conduction loudspeaker according to claim 1, characterized in that, The magnetic circuit assembly includes a magnet, a first magnetic conductive element, and a second magnetic conductive element, forming two independent magnetic fields with opposite polarities to drive the first vibration assembly and the second vibration assembly respectively.

3. The co-magnetic field vibration bone conduction loudspeaker according to claim 1, characterized in that, The first vibration component and the second vibration component share the magnetic field, wherein the first vibration component has a first vibration frequency and a first phase, the second vibration component has a second vibration frequency and a second phase, and the first phase and the second phase have an absolute difference of 90 to 180 degrees.

4. The co-magnetic field vibration bone conduction loudspeaker according to claim 2, characterized in that, The first magnetic conductive element is a T-shaped lower magnetic conductive plate, the second magnetic conductive element is an annular upper magnetic conductive plate, and the magnet between the T-shaped lower magnetic conductive plate and the annular upper magnetic conductive plate is at least one magnet.

5. The co-magnetic field vibrating bone conduction loudspeaker according to claim 4, characterized in that, The magnet is formed by combining two or more of the aforementioned magnets, with the polarity of the previous magnet being opposite to that of the next.

6. The co-magnetic field vibrating bone conduction loudspeaker according to claim 1, characterized in that, It also includes a first coil and a second coil; the first coil is connected to the first vibration component, and the second coil is connected to the second vibration component, wherein at least a portion of both the first coil and the second coil is located within the magnetic field and moves within the magnetic field under the drive of an electrical signal.

7. The co-magnetic field vibrating bone conduction loudspeaker according to claim 1, characterized in that, The housing includes a first panel for conducting vibrational sound waves and a housing cavity, the first panel and the housing forming a closed space; the side of the housing cavity is provided with at least one sound outlet for pushing air to transmit radiated sound waves.

8. The co-magnetic field vibrating bone conduction loudspeaker according to claim 7, characterized in that, The frequencies of the vibrating sound wave and the radiated sound wave are superimposed and complementary.

9. An earphone, characterized in that, The headphones include a headband or ear hooks and a sound-generating component connected to the headband or ear hooks; The sound-generating component is encapsulated with a common magnetic field vibrating bone conduction loudspeaker as described in any one of claims 1-8.

10. A method for achieving bone acoustic conduction via co-magnetic field vibration, characterized in that, The method is implemented using a co-magnetic vibration bone conduction loudspeaker as described in any one of claims 1-8; The method includes: Acquire radio wave signals carrying audio; The electromagnetic wave signal is converted into a first mechanical vibration signal and a second mechanical vibration signal by a preset common magnetic field, a first vibration component and a second vibration component; wherein the absolute phase difference between the first mechanical vibration signal and the second mechanical vibration signal is 90~180 degrees and the absolute frequency difference is 20~20000Hz. The first mechanical vibration signal is restored to a vibratory sound wave through a solid medium, and the second mechanical vibration signal is restored to a gas-conducted sound wave through an air medium.

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