Acoustic Devices

Abstract

The embodiment of the present application discloses an acoustic device, which may include a vibration speaker, a transmission mechanism mechanically connected to the vibration speaker, and a support assembly mechanically connected to the vibration speaker through the transmission mechanism. The vibration speaker is configured to generate a vibration signal representing sound according to an electrical signal. The transmission mechanism is configured to contact a user through a contact portion on the transmission mechanism, and transmit the vibration signal to the user through the contact portion. The contact portion on the transmission mechanism is a certain distance from the vibration speaker, and the vibration intensity of the contact portion is less than the vibration intensity of the vibration speaker. The support assembly is configured to support the transmission mechanism.

Description

[0001] Cross-references

[0002] This application claims priority to Chinese patent application No. 202010247338.2 filed on March 31, 2020, the contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to an acoustic device, and in particular to an acoustic device having a transmission mechanism. Background Art

[0004] A vibration speaker can convert an electrical signal into a mechanical vibration signal and transmit the mechanical vibration signal to a user through human tissue and / or bones so that the user can hear the sound. Generally, when a vibration speaker transmits a low-frequency vibration signal to a user through direct contact with the user, the user may feel a strong vibration, which may bring an uncomfortable experience to the user. It is desirable to provide a vibration speaker with rich low-frequency signals and can improve the user experience. Summary of the invention

[0005] One aspect of an embodiment of the present application provides an acoustic device, comprising: a vibration speaker, configured to generate a vibration signal representing a sound according to an electrical signal; a transmission mechanism, mechanically connected to the vibration speaker, the transmission mechanism being configured to contact a user through a contact portion on the transmission mechanism, and to transmit the vibration signal to the user through the contact portion, the contact portion on the transmission mechanism being a certain distance away from the vibration speaker, and the vibration intensity of the contact portion being less than the vibration intensity of the vibration speaker; and a supporting assembly, mechanically connected to the vibration speaker through the transmission mechanism, the supporting assembly being configured to support the transmission mechanism.

[0006] In some embodiments, the transmission mechanism comprises an elastic element comprising at least one arc-shaped portion.

[0007] In some embodiments, a first end of the at least one arcuate portion is mechanically connected to the supporting assembly, and a second end of the at least one arcuate portion is mechanically connected to the vibration speaker directly or through a connecting portion, wherein a contact portion of the transmission mechanism is located on the at least one arcuate portion, and the vibration speaker vibrates around the contact portion in response to the vibration signal.

[0008] In some embodiments, the contact area between the transmission mechanism and the user varies in response to the vibration signal.

[0009] In some embodiments, the transmission mechanism includes: a connecting unit, the vibration speaker is mechanically connected to a first end of the connecting unit; a vibration plate is mechanically connected to a second end of the connecting unit; and an elastic element, the supporting assembly is connected to the connecting unit via the elastic element, and the vibration speaker vibrates around a connection point between the supporting assembly and the elastic element in response to the vibration signal.

[0010] In some embodiments, when the user wears the acoustic device, a surface of the vibration speaker faces an ear hole of the user.

[0011] In some embodiments, the vibration speaker includes one or more openings configured to transmit air-conducted waves generated in the vibration speaker housing to the user, and when the user wears the acoustic device, the one or more openings are arranged to face the user's ear holes.

[0012] In some embodiments, the acoustic device further comprises: an auxiliary supporting assembly directly connected to the vibration speaker and configured to support the vibration speaker.

[0013] In some embodiments, the angle between the transmission mechanism and the plane of the user's skin ranges from 0° to 90°, 0° to 70°, from 5° to 50°, 10° to 50°, or 10° to 30°.

[0014] In some embodiments, the lowest resonance peak of the vibration speaker is less than 90 Hz.

[0015] In some embodiments, the vibration speaker comprises a magnetic circuit component, a vibration component and a shell, and the lowest resonance peak of the vibration speaker is related to the elastic modulus of the vibration component of the vibration speaker.

[0016] In some embodiments, the support assembly includes a fixing portion, and the fixing portion is U-shaped or C-shaped.

[0017] In some embodiments, the support assembly includes a housing structure with a cavity that can accommodate at least one of a battery, a Bluetooth device, or a circuit board.

[0018] One aspect of an embodiment of the present specification provides an electronic device including an acoustic device, wherein the acoustic device includes: a vibration speaker, configured to generate a vibration signal representing a sound based on an electrical signal; a transmission mechanism, mechanically connected to the vibration speaker, the transmission mechanism being configured to contact a user through a contact portion on the transmission mechanism and transmit the vibration signal to the user through the contact portion, the contact portion on the transmission mechanism being a certain distance away from the vibration speaker, and the vibration intensity of the contact portion being less than the vibration intensity of the vibration speaker; and a supporting assembly, mechanically connected to the vibration speaker through the transmission mechanism, the supporting assembly being configured to support the transmission mechanism.

[0019] Some additional features of the present application may be described in the following description. Some additional features of the present application will be apparent to those skilled in the art through study of the following description and corresponding drawings or understanding of the production or operation of the embodiments. The features and implementations of the present application may be realized and achieved by practicing or using various aspects of the methods, tools, and combinations set forth in the detailed examples discussed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same numbers represent similar structures, wherein:

[0021] Figure 1 is a block diagram of an acoustic device according to some embodiments of the present application;

[0022] Figure 2 is an exemplary image related to a process in which an exemplary acoustic device transmits a vibration signal to a user according to some embodiments of the present application; and

[0023] Figure 3 is an exemplary image showing a process of an exemplary acoustic device transmitting a vibration signal to a user according to some embodiments of the present application. DETAILED DESCRIPTION

[0024] The following description is intended to enable one of ordinary skill in the art to implement and utilize the present application, and the description is provided in the context of a specific application scenario and its requirements. It will be apparent to one of ordinary skill in the art that various changes may be made to the disclosed embodiments, and that the general principles defined in the present application may be applied to other embodiments and application scenarios without departing from the principles and scope of the present application. Therefore, the present application is not limited to the described embodiments, but should be given the broadest scope consistent with the claims.

[0025] The terms used in this application are only used to describe specific exemplary embodiments and do not limit the scope of this application. The singular forms "one", "an" and "the" used in this application may also include plural forms unless the context clearly indicates an exception. It should also be understood that, as in this application, the terms "include" and "comprise" only indicate the presence of the features, wholes, steps, operations, components and / or parts, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, components, parts and / or combinations thereof.

[0026] These and other features, characteristics and functions and methods of operation of the related structural elements of the present application, as well as the combination of components and manufacturing economy, may become more apparent from the following description of the accompanying drawings, which form a part of the specification of this application. However, it should be understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present application. It should be understood that the drawings are not drawn to scale.

[0027] It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, the various elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the exemplary embodiments of the present application.

[0028] Spatial and functional relationships between elements (e.g., between layers) may be described using a variety of terms, including "connected," "participated," "interfaced," and "coupled." When describing a relationship between a first and a second element in this disclosure, unless explicitly described as "direct," the relationship includes a direct relationship in which no other intervening elements exist between the first and second elements, and an indirect relationship in which one or more intervening elements exist (spatially or functionally) between the first and second elements. In contrast, when an element is referred to as being "directly" connected, involved, interacting, or coupled to another element, no intervening elements are present. Other words used to describe relationships between elements should also be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.).

[0029] It should be understood that terms such as "top", "bottom", "upper", "lower", "vertical", "lateral", "above", "below", "upward", "downward", "left", "right", "horizontal" and other such spatial reference terms are used in a relative sense to describe the position or orientation of certain surfaces / parts / components of an object relative to other such features of the vehicle when the vehicle is in its normal operating position, and that such position or orientation may change if the position or orientation of the vehicle changes.

[0030] One aspect of the present application relates to an acoustic device. The acoustic device may include a vibration speaker, a transmission mechanism and a support assembly. The vibration speaker may be configured to generate a vibration signal representing sound according to an electrical signal. The transmission mechanism may be mechanically connected to the vibration speaker. The transmission mechanism may be configured to contact a user through a contact portion on the transmission mechanism, and transmit the vibration signal to the user through the contact portion. The contact portion on the transmission mechanism may be a certain distance from the vibration speaker, and the vibration intensity of the contact portion is less than the vibration intensity of the vibration speaker. The support assembly may be mechanically connected to the vibration speaker through the transmission mechanism. The support assembly may be configured to support the transmission mechanism.

[0031] In some embodiments, the contact area between the transmission mechanism and the user can change in response to the vibration signal. During the vibration signal transmission process, when the vibration speaker vibrates toward the user, the contact area between the contact portion of the transmission mechanism and the user (or the user's skin) can gradually decrease, which is smaller than the contact area when the vibration speaker is in normal direct contact with the user, thereby further reducing the user's sense of vibration. In addition, since the vibration intensity of the contact portion of the transmission mechanism is lower than the vibration intensity of the vibration speaker, the vibration intensity of the vibration signal transmitted to the user by the transmission mechanism can be reduced, thereby further reducing the user's sense of vibration.

[0032] In some alternative embodiments, the transmission mechanism may be an elastic element having an arc-shaped portion, so that the contact area between the contact portion of the transmission mechanism and the user may not change (or substantially not change) due to the vibration signal. During the vibration signal transmission process, when the vibration speaker vibrates toward the user, a portion of the vibration signal generated by the vibration speaker may be converted into elastic deformation of the elastic element. Therefore, the vibration sense of the user may be less than the vibration sense when the user directly contacts the vibration speaker.

[0033] In addition, the vibration speaker can be arranged so that its surface faces the user's ear canal. In this way, when the vibration speaker vibrates toward the user, the vibration speaker can drive the air around the vibration speaker to vibrate, and transmit the sound signal to the user through the air, thereby enhancing the intensity of the sound transmitted to the user. Therefore, the vibration speaker can be designed to provide a deeper low-frequency signal, making the sound energy in the low-frequency range richer, thereby enhancing the user's perception of the sound (such as music) in the low-frequency signal, allowing the user to feel more low-frequency effects.

[0034] Figure 1 1 is a block diagram of an acoustic device according to some embodiments of the present application. For example, the acoustic device 100 may be an acoustic device in an electronic device, such as an earphone, a headset, a virtual reality glasses, an augmented reality glasses, etc. Figure 1 As shown, the acoustic device 100 may include a vibration speaker 110, a transmission mechanism 120, and a support assembly 130. The vibration speaker 110 may be connected to the support assembly 130 via the transmission mechanism 120.

[0035] The vibration speaker 110 may be configured to generate a vibration signal representing a sound according to an electrical signal. The electrical signal may contain sound information. The sound information may be a video file or an audio file having a specific data format, or may refer to conventional data or files that can be converted into sound by a specific method. The electrical signal may be received from a signal source such as a microphone, a computer, a mobile phone, an MP3 player, etc. For example, a microphone may receive a sound signal from a sound source. The microphone may then convert the received sound signal into an electrical signal and transmit the electrical signal to the vibration speaker 110. As another example, the vibration speaker 110 may be connected or communicated with an MP3 player, and the MP3 player may transmit the electrical signal directly to the vibration speaker 110. In some embodiments, the vibration speaker 110 may be connected to and / or connected to a signal source via a wired connection, a wireless connection, or a combination thereof. The wired connection may include a cable, an optical cable, a telephone line, etc., or any combination thereof. The wireless connection may include a Bluetooth network, a local area network (LAN), a wide area network (WAN), a near field communication (NFC) network, a cellular network, etc., or any combination thereof.

[0036] In some embodiments, the vibration speaker 110 may be a bone conduction speaker. In some embodiments, the vibration speaker 110 may be a composite speaker. In this case, the vibration speaker 110 may generate bone conduction sound waves and air conduction sound waves that can be perceived by the user wearing the vibration speaker. It should be noted that the vibration speaker 110 may include various types, such as electromagnetic (e.g., moving coil, moving iron, etc.), piezoelectric, trans-piezoelectric, electrostatic, etc., and is not limited in this specification.

[0037] The transmission mechanism 120 can be mechanically connected to the vibration speaker 110. Therefore, the transmission mechanism 120 can receive a vibration signal from the vibration speaker 110. When the user wears the acoustic device 100, an angle can be formed between the transmission mechanism 120 and the user. As described herein, the angle between the transmission mechanism 120 and the user refers to the angle between the long axis of the transmission mechanism 120 and the plane where the user's skin is located. In some embodiments, the angle can range from 0° to 90°, 0° to 70°, from 5° to 50°, 10° to 50°, 10° to 30°, 0° to 70°, 0° to 70°, 10° to 30°, etc.

[0038] The transmission mechanism 120 may be configured to contact the user through a contact portion of the transmission mechanism 120, and transmit the received vibration signal to the user through the contact portion. In some embodiments, the contact area between the transmission mechanism 120 and the user (e.g., the user's skin) may change with the vibration signal. In some embodiments, the area where the contact portion of the transmission mechanism is located on the user's body and / or the area in contact with the user's body may include the forehead, neck (e.g., throat), face (e.g., area around the mouth, chin), top of the head, mastoid, area around the ears, temples, etc. or any combination thereof.

[0039] The contact portion on the transmission mechanism 120 may be at a certain distance from the vibration speaker 110. The vibration speaker 110 may vibrate around the rotation axis near the contact portion of the transmission mechanism 120. In this case, the contact portion on the transmission mechanism 120 may be closer to the rotation axis than the vibration speaker 110. Therefore, the vibration intensity of the contact portion on the transmission mechanism 120 may be smaller than the vibration intensity of the vibration speaker 110, thereby weakening the vibration transmitted to the user. For example, the transmission mechanism 120 may include an elastic element having at least one arc portion. The contact portion of the transmission mechanism 120 may be located on a raised portion of at least one arc portion. The vibration speaker 110 may vibrate around the contact portion with the vibration signal. More description about the arc portion may be elsewhere in this specification (for example, Figure 3 and its description). As another example, the transmission mechanism 120 may include a connecting unit, a vibration plate, and an elastic element. The vibration speaker 110 may be disposed on an upper surface of the connecting unit, and the vibration plate may be connected to one end of the connecting unit. The contact portion of the transmission mechanism 120 may be on the vibration plate. The support assembly 130 may be connected to the connecting unit or the vibration plate via an elastic element. The vibration speaker 110 may vibrate around a connection point between the support member 130 and the elastic element in response to a vibration signal. More descriptions of the transmission mechanism having a connecting unit, a vibration plate, and an elastic element may be found elsewhere in this specification (e.g., Figure 2 and its description).

[0040] In some embodiments, the contact portion of the transmission mechanism 120 may be located in an area near the ear, in which the vibration speaker 110 may be arranged so that its surface faces the ear canal of the user. In this way, when the vibration speaker vibrates, the vibration speaker 110 may drive the air around the vibration speaker to vibrate and generate air-conducted sound waves. The air-conducted sound waves may be transmitted to the ear through the air, thereby enhancing the intensity of the sound transmitted to the user. Therefore, the user can not only hear the bone-conducted sound waves generated by the vibration of the contact portion of the transmission mechanism, but also hear the air-conducted sound waves generated by the vibration speaker 110 driving the surrounding air.

[0041] In some alternative embodiments, the housing of the vibration speaker 110 may include one or more openings, for example, a side wall of the housing or a side facing the user's ear canal. In this way, when the vibration speaker 110 vibrates, the air-conducted sound waves generated inside the housing of the vibration speaker 110 (for example, generated by the vibration of the vibration assembly inside the housing) can be transmitted to the outside of the housing through one or more openings, and further transmitted to the user's ear. In some embodiments, the one or more openings of the vibration speaker 110 can be arranged to face the user's ear canal when the user wears the acoustic device 100. Therefore, the user can further receive the air-conducted sound waves transmitted by the one or more openings of the vibration speaker 110, thereby enhancing the sound intensity heard by the user.

[0042] The support assembly 130 may be mechanically connected to the vibration speaker 110 via the transmission mechanism 120. The support assembly 130 may be configured to support the transmission mechanism 120 and / or the vibration speaker 110 so that the transmission mechanism 120 is in contact with the user's skin.

[0043] In some embodiments, the support assembly 130 may include a fixing portion that allows the acoustic device 100 to be better fixed to the user and prevent it from falling during use by the user. In some embodiments, the fixing portion may have any shape that is compatible with a part of the human body (e.g., ear, head, neck), such as a U-shape, a C-shape, a ring, an ellipse, a semicircle, etc., so that the acoustic device 100 can be worn independently on the user's body. For example, the shape of the fixing portion of the support assembly 130 may match the shape of a human auricle, so that the acoustic device 100 can be worn independently on the user's ear. As another example, the shape of the fixing portion of the support assembly 130 may match the shape of a human head, so that the support assembly 130 can be worn on the user's head, thereby preventing the acoustic device 100 from easily falling off the head.

[0044] In some embodiments, the support assembly 130 may be a shell structure having a cavity. The cavity may accommodate a battery, a circuit board, a Bluetooth device, etc., or any combination thereof. In some embodiments, the support assembly 130 may be made of various materials, such as metal materials (e.g., aluminum, gold, copper, etc.), alloy materials (e.g., aluminum alloys, titanium alloys, etc.), plastic materials (e.g., polyethylene, polypropylene, epoxy resins, nylon, etc.), fiber materials (e.g., acetate fiber, propionate fiber, carbon fiber, etc.), etc. In some embodiments, the support assembly 130 may be provided with a sheath. The sheath may be made of a soft material having a certain elasticity, such as soft silicone, rubber, etc., which may provide a better sense of touch for the user.

[0045] It should be noted that the above description of the acoustic device 100 is for illustrative purposes only and is not intended to limit the scope of the present application. For those of ordinary skill in the art, various changes and modifications can be made according to the description of the present application. However, these changes and modifications do not depart from the scope of the present application. In some embodiments, the connection method between any two components of the acoustic device 100 (for example, the vibration speaker 110, the transmission mechanism 120 and the support assembly 130) may include bonding, riveting, bolting, integral molding, suction connection, etc. or any combination thereof.

[0046] In some embodiments, the acoustic device 100 may further include an auxiliary support component, which is configured to assist the support component 130 in supporting the vibration speaker 110 by contacting the user. The auxiliary support component may have a rod-shaped structure, and one end of the auxiliary support component may be directly connected to the vibration speaker 110. Therefore, when the user wears the acoustic device 100, the auxiliary support component may contact the user and the vibration speaker 110, so that the vibration speaker 110 can transmit a portion of the vibration signal to the user through the auxiliary support component, thereby further enhancing the sound intensity heard by the user.

[0047] Figure 2 is an exemplary image related to a process in which an exemplary acoustic device transmits a vibration signal to a user according to some embodiments of the present application. Figure 2 As shown (eg, image 2a ), the acoustic device 200 may include a vibration speaker 210 , a transmission mechanism 220 (components in the dashed box 220 ), and a support assembly 230 .

[0048] The vibration speaker 210 can be connected to the support assembly 230 through the transmission mechanism 220. The vibration speaker 210 can generate an electrical signal representing sound based on the electrical signal. As an example only, the vibration speaker 210 may include a magnetic circuit assembly, a vibration assembly and a housing. The magnetic circuit assembly can be configured to provide a magnetic field. The vibration assembly can convert the electrical signal input into the vibration assembly into a mechanical vibration signal in the magnetic field. The housing can include a panel facing the human body and a back plate opposite to the panel. The housing can accommodate the vibration assembly. In some embodiments, the vibration assembly can vibrate the panel and the back plate. The vibration speaker 210 can generate various resonance peaks. In some embodiments, the vibration speaker 210 can provide one or more low-frequency resonance peaks within a frequency range of less than 500 Hz, or less than 800 Hz, or less than 1000 Hz. The low-frequency resonance peak is related to the elastic modulus of the vibration assembly. The less the elastic modulus of the vibration assembly, the lower the low-frequency resonance peak generated by the vibration speaker 210.

[0049] The transmission mechanism 220 can transmit the vibration signal to the user by contacting the user (e.g., the user's cochlea). In some embodiments, the transmission mechanism 220 may include a connection unit 222, a vibration plate 224, and an elastic element 226. The contact portion on the transmission mechanism 220 that contacts the user may be located on the vibration plate 224.

[0050] In some embodiments, the connection unit 222 may be a structure having two ends (e.g., a first end E1 and a second end E2). For example, the connection unit 222 may be a rod-shaped structure, a sheet-shaped structure, etc. having two ends. The vibration speaker 210 may be connected to the vibration plate 224 through the connection unit 222. For example, a side wall (e.g., a lower side wall) of the vibration speaker 210 may be connected to a side wall (e.g., an upper side wall) of the connection unit 222. Optionally, the vibration speaker 210 may be on the upper side of the first end E1 of the connection unit 222 or connected to the first end E1 of the connection unit 222. For example, as Figure 2 As shown, when the connection unit 222 is a rectangular rod, the vibration speaker 210 can be located on the upper side of the connection unit 222. For simplicity, the upper side of the connection unit 222 refers to the side of the connection unit 222 facing away from the user's skin, and the lower side of the connection unit 222 refers to the side of the connection unit 222 facing the user's skin. Similarly, the upper side of the vibration speaker 210 refers to the side of the vibration speaker 210 facing away from the user's skin, and the lower side of the vibration speaker 210 refers to the side of the vibration speaker 210 facing the user's skin. In some embodiments, when the connection unit 222 is a rod-shaped structure, the cross-section of the rod can be any other shape, such as a rectangle, a triangle, a circle, an ellipse, a regular hexagon, an irregular shape, etc. In some embodiments, when the connection unit 222 is a sheet-like structure, the shape of the sheet can include a rectangle, an ellipse, an irregular shape, etc.

[0051] The vibration plate 224 may be connected to the lower side of the connection unit 222 at the second end E2. The contact portion of the vibration plate 224 and the transmission mechanism 220 may be at a certain distance from the vibration speaker 210. The vibration plate 224 may be configured to contact the user (eg Figure 2 In some embodiments, the vibration plate 224 may be in a block shape, such as a wedge-shaped block, which may allow the vibration speaker 210 to be suspended above the user's skin, so that an angle is formed between the upper surface or the lower surface of the connection unit 222 and the user's skin surface (for example, Figure 2 In some embodiments, the angle between the upper surface or the lower surface of the connection unit 222 and the user's skin surface can range from 0° to 90°, 0° to 70°, from 5° to 50°, 10° to 50°, 10° to 30°, etc. In some embodiments, the angle between the upper surface or the lower surface of the connection unit 222 and the user's skin surface can also be referred to as the angle between the transmission mechanism 220 and the user's skin 240 (or the plane where the user's skin is located).

[0052] The elastic element 226 and the vibration plate 224 may be located at the same end of the connection unit 222, that is, the elastic element 226 may also be connected to the second end E2 of the connection unit 222. The upper surface of the vibration plate 224 may have a protruding structure 228 (eg, Figure 2 As shown). Both ends of the elastic element 226 may be connected to the protruding structure 228 and the second end E2 of the connecting unit 222, respectively. In some embodiments, the elastic element 226 may be a sheet-like structure or a rod-like structure with a certain elasticity.

[0053] The first end of the support assembly 230 can be connected to the elastic element 226 at any point (e.g., the center point) of the elastic element 226. In some embodiments, the first end of the support assembly 230 can be directly connected to the elastic element 226 or connected through a connecting element 232. For example, the first end of the support assembly 230 can be directly connected to the center of the elastic element 226 or connected through a connecting element 232. When the acoustic device 200 is fixedly worn on the user, the support component 230 can be regarded as fixed relative to the user. In this case, the vibration speaker 210 can drive the connection unit 222 and the vibration plate 224 to rotate around a specific connection point 250 (e.g., the center point of the elastic element 226) between the support component 230 and the elastic element 226 in response to a vibration signal.

[0054] according to Figure 22a and 2b, image 2a represents the initial state of the acoustic device 200 during the vibration signal transmission process, and image 2b represents the intermediate state of the acoustic device 200 during the vibration signal transmission process. Arrow A represents the vibration direction of the vibration speaker 210, and the length of arrow A represents the vibration intensity.

[0055] When the acoustic device 200 is in the initial state (image 2a), the value of the angle between the transmission mechanism 220 and the user's skin 240 is equal to θ, and at this time, the contact area between the vibration plate 224 and the user's skin is the largest during the vibration signal transmission process. When the acoustic device 200 is in the intermediate state (image 2b), the angle between the transmission mechanism 220 and the user's skin can be smaller than the angle between the transmission mechanism 220 and the user's skin 240 when the acoustic device 200 is in the initial state. Therefore, the contact area between the transmission mechanism 220 and the user's skin 240 can vary with the vibration signal. For example, in the process of the vibration speaker 210 vibrating toward the user's skin 240 around a specific connection point 250, the angle between the transmission mechanism 220 and the user's skin 240 can gradually decrease (i.e., θ'< in image 2b). In this case, the contact area between the vibration plate 224 and the user's skin 240 when the acoustic device 200 is in the intermediate state can be smaller than the contact area between the vibration plate 224 and the user's skin 240 when the acoustic device 200 is in the initial state. Therefore, in the process of the vibration speaker 210 transmitting the vibration signal to the user, the vibration sense of the user can be weakened.

[0056] In addition, since the vibration plate 224 is a certain distance away from the vibration speaker 210, and the distance from the vibration plate 224 to the specific connection point 250 is less than the distance from the vibration speaker 210 to the specific connection point 250, during the transmission of the vibration signal, the vibration intensity of the vibration plate 224 can be smaller than the vibration intensity of the vibration speaker 210, thereby further reducing the user's vibration sense. As an example only, arrow B represents the vibration of a certain point on the contact portion, and the length of arrow B represents the vibration intensity of the point. Since the vertical distance from the specific connection point 250 to arrow B is less than its vertical distance to arrow A, the vibration intensity of arrow A (i.e., the length of arrow A) can be greater than the vibration intensity of arrow B (i.e., the length of arrow B).

[0057] Therefore, the vibration from the vibration speaker 210 can be reduced by using the transmission mechanism 220, so as to protect the user from the uncomfortable vibration in the low frequency range. On this basis, the frequency response of the vibration speaker 210 can be designed more flexibly to adapt to different needs. For example, the lowest resonance peak of the vibration speaker 210 can be moved to a lower frequency range to provide a richer low-frequency signal to the user. As mentioned above, the lowest resonance peak of the vibration speaker 210 can be adjusted by changing the elastic modulus of the vibration assembly of the vibration speaker 210. In some embodiments, the elastic modulus of the vibration assembly of the vibration speaker 210 can be designed so that the frequency of the lowest resonance peak of the vibration speaker 210 is less than 2500Hz, or less than 2000Hz, or less than 1500Hz, or less than 1500Hz, or less than 1200Hz, or less than 1000Hz, or less than 800Hz, or less than 500Hz, or less than 300Hz, or less than 200Hz, or less than 200Hz, or less than 100Hz, or less than 90Hz, or less than 90Hz or less than 50Hz.

[0058] It should be noted that the above description is for illustrative purposes only and is not intended to limit the scope of the present application. For those of ordinary skill in the art, various changes and modifications can be made according to the description of the present application. However, these changes and modifications do not depart from the scope of the present application. For example, the vibration speaker 210 can be directly connected to the vibration plate 224, that is, the connection unit 222 can be omitted. In this case, the elastic element 226 can be directly connected to the vibration speaker 210. As another example, the acoustic device 200 may also include one or more other components, such as an auxiliary support assembly (not shown). For another example, the contact portion of the transmission mechanism 220 can be set in an area around the ear, in which the vibration speaker 210 can be set to align its surface with the user's ear canal to better transmit air-conducted sound waves to the ear. In some embodiments, the connection between any two components of the acoustic device 200 (e.g., the vibration speaker 210, the connection unit 222, the vibration plate 224, the support assembly 230, etc.) can include bonding, riveting, bolting, integral molding, suction connection, etc. or any combination thereof.

[0059] Figure 3 is an exemplary image related to a process in which an exemplary acoustic device transmits a vibration signal to a user according to some embodiments of the present application. Figure 3 As shown, the acoustic device 300 can be used with Figure 2 The acoustic device shown is similar. Acoustic device 300 may include a vibration speaker 310, a transmission mechanism 320, and a support assembly 330.

[0060] The vibration speaker 310 may be connected to the support assembly 330 via a transmission mechanism 320. The vibration speaker 310 may generate a vibration signal representing sound based on the electrical signal. Figure 2 The vibration speaker 210 shown is similar or identical.

[0061] The transmission mechanism 320 may include an elastic element. The elastic element may include a connecting portion 322 and an arc portion 324, wherein a first end of the connecting portion 322 is connected to a first end E3 of the arc portion 324. In some embodiments, the elastic element (e.g., the connecting portion 322 and / or the arc portion 324) may be composed of various elastic materials, such as metal materials (e.g., aluminum, gold, copper, etc.), alloy materials (e.g., aluminum alloy, titanium alloy, etc.), plastic materials (e.g., polyethylene, polypropylene, epoxy resin, nylon, etc.), fiber materials (e.g., acetate fiber, propionate fiber, carbon fiber, etc.), etc.

[0062] The vibration speaker 310 may be mechanically connected to the connection portion 322. For example, when the connection portion 322 is a sheet-like structure, the vibration speaker 310 may be disposed on the upper surface of the connection portion 322. For another example, when the connection portion 322 is a rod-like structure, the vibration speaker 310 may be disposed on the upper surface of the connection portion 322, or the side wall of the vibration speaker 310 may be connected to the second end of the connection portion 322.

[0063] The raised portion of the arc portion 324 may be configured to contact the user's skin 340, so that the vibration speaker 310 can transmit the vibration signal to the user through the transmission mechanism 320. In this case, the contact area between the arc portion 324 and the user's skin 340 may be smaller than Figure 2 The contact area between the contact portion of the transmission mechanism 220 and the user's skin 340 is shown. The contact area between the transmission mechanism 320 and the user's skin 340 may be almost constant with the vibration signal. The vibration speaker 310 may be suspended on the user's skin, and an angle may be formed between the connection portion 322 and the surface of the user's skin 340 (e.g., Figure 3 In some embodiments, the angle between the connecting portion 322 and the surface of the user's skin 340 may range from 0° to 90°, 0° to 70°, 5° to 50°, 10° to 50°, 10° to 30°, etc. In some embodiments, the angle between the connecting portion 322 and the surface of the user's skin 340 may also be referred to as the angle between the transmission mechanism 320 and the user's skin 340 (or the plane where the user's skin is located).

[0064] In some embodiments, the raised portion of the arc portion that contacts the user's skin 340 may also be referred to as the contact portion 350 of the transmission mechanism 320. The contact portion 350 of the transmission mechanism 320 may be at a certain distance from the vibration speaker 310. The second end E4 of the arc portion 324 may be connected to one end of the support assembly 330. When the acoustic device 300 is fixedly worn on the user, the support assembly 330 may be considered to be fixed relative to the user. In this case, the vibration speaker 310 may drive the transmission mechanism 320 (i.e., the elastic element, the connecting portion 322, and the arc portion 324) to vibrate or rotate around the contact portion 350 in response to the vibration signal. In some embodiments, the second end E4 of the arc portion 324 may be connected to the support assembly 330 via a connecting element 332.

[0065] according to Figure 3 3a and 3b, image 3a represents the initial state of the acoustic device 300 during the transmission of the vibration signal, and image 3b represents the intermediate state of the acoustic device 300 during the transmission of the vibration signal. Arrow B represents the vibration direction of the vibration speaker 310, and the length of arrow B represents the vibration intensity.

[0066] During the vibration signal transmission process, since the contact area between the arc portion 324 and the user's skin 340 is very small, and only a part of the vibration signal generated by the vibration speaker 310 is converted into elastic deformation of the transmission mechanism 320 (such as the connecting portion 322 and / or the arc portion 324), the user's vibration sense can be weakened compared to the user's vibration sense when the vibration speaker 310 directly contacts the user's skin 340.

[0067] In addition, since the contact portion 350 is at a certain distance from the vibration speaker 310, during the transmission of the vibration signal, the vibration intensity of the contact portion 350 may be smaller than the vibration intensity of the vibration speaker 310, thereby further reducing the user's sense of vibration. As an example only, arrow B represents the vibration of a point near the contact portion 350, and the length of arrow B represents the vibration intensity of the point. Since the vertical distance from the contact portion 350 to arrow B is less than the vertical distance from the contact portion 350 to arrow A, the vibration intensity of arrow A (i.e., the length of arrow A) may be greater than the vibration intensity of arrow B (i.e., the length of arrow B).

[0068] Therefore, the vibration from the vibration speaker 310 can be reduced by using the transmission mechanism 320, so as to protect the user from the uncomfortable vibration in the low frequency range. On this basis, the frequency response of the vibration speaker 310 can be designed more flexibly to adapt to different needs. For example, the lowest resonance peak of the vibration speaker 310 can be moved to a lower frequency range to provide a richer low-frequency signal to the user. As described above, the lowest resonance peak of the vibration speaker 310 can be adjusted by changing the elastic modulus of the vibration component of the vibration speaker 310. In some embodiments, the elastic modulus of the vibration component of the vibration speaker 310 can be designed so that the frequency of the lowest resonance peak of the vibration speaker 310 is less than 2500Hz, or less than 2000Hz, or less than 1500Hz, or less than 1500Hz, or less than 1200Hz, or less than 1000Hz, or less than 800Hz, or less than 500Hz, or less than 300Hz, or less than 200Hz, or less than 200Hz, or less than 100Hz, or less than 90Hz, or less than 90Hz or less than 50Hz.

[0069] For illustrative purposes only, only one elastic element is described in the acoustic device 300. However, it should be noted that the acoustic device 300 in the present application may also include multiple elastic elements, so the vibration signal may also be transmitted by multiple elastic elements. In some embodiments, the elastic element 320 may include multiple arc portions, so the vibration signal may also be transmitted by multiple arc portions. For example, the multiple arc portions may be arranged side by side.

[0070] It should be noted that the above description is for illustrative purposes only and is not intended to limit the scope of the present application. For those of ordinary skill in the art, various changes and modifications can be made according to the description of the present application. However, these changes and modifications do not depart from the scope of the present application. For example, the arc portion 324 can be directly connected to the vibration speaker 310, that is, the connecting portion 322 can be omitted. As another example, the acoustic device 300 may also include one or more other components, such as an auxiliary support assembly (not shown). For another example, the contact portion 350 of the transmission mechanism 320 can be arranged in an area around the ear, in which the vibration speaker 310 can be arranged to align its surface with the user's ear canal to better transmit air-conducted sound waves to the ear. In some embodiments, the connection between any two components of the acoustic device 300 (e.g., the vibration speaker 310, the arc portion 324, the connecting portion 322, the support assembly 330, etc.) can include bonding, riveting, bolting, integral molding, suction connection or the like, or any combination thereof.

[0071] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0072] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0073] In addition, it will be appreciated by those skilled in the art that various aspects of the present application may be illustrated and described by a number of patentable categories or situations, including any new and useful process, machine, product or combination of substances, or any new and useful improvements thereto. Accordingly, various aspects of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. The above hardware or software may all be referred to as "data blocks", "modules", "engines", "units", "components" or "systems". In addition, various aspects of the present application may be represented as a computer product located in one or more computer-readable media, which includes computer-readable program code.

[0074] A computer storage medium may include a propagated data signal containing computer program code, for example, in baseband or as part of a carrier wave. The propagated signal may be in a variety of forms, including electromagnetic, optical, etc., or a suitable combination. A computer storage medium may be any computer-readable medium other than a computer-readable storage medium, which can be connected to an instruction execution system, device or apparatus to communicate, propagate or transmit the program for use. The program code on the computer storage medium may be transmitted via any suitable medium, including radio, cable, fiber optic cable, RF, or similar media, or any combination of the above media.

[0075] The computer program coding required for the operation of each part of the application can be written in any one or more programming languages, including object-oriented programming languages ​​such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C++, C#, VB.NET, Python, etc., conventional procedural programming languages ​​such as C language, Visual Basic, Fortran 2003, Perl, COBOL 2002, PHP, ABAP, dynamic programming languages ​​such as Python, Ruby and Groovy, or other programming languages, etc. The program coding can be run completely on the user's computer, or run on the user's computer as an independent software package, or run partly on the user's computer and partly on the remote computer, or run completely on the remote computer or server. In the latter case, the remote computer can be connected to the user's computer through any network form, such as a local area network (LAN) or a wide area network (WAN), or connected to an external computer (e.g., via the Internet), or in a cloud computing environment, or used as a service such as software as a service (SaaS).

[0076] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this application, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this application. Although the above disclosure discusses some invention embodiments that are currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0077] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0078] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0079] Each patent, patent application, patent application disclosure, and other materials, such as articles, books, instructions, publications, documents, etc., cited in this application are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the content of this application, documents that limit the broadest scope of the claims of this application (currently or later attached to this application) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content described in this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

[0080] Finally, it should be understood that the embodiments described in this application are only used to illustrate the principles of the embodiments of the present application. Other variations may also fall within the scope of the present application. Therefore, as an example and not a limitation, the alternative configurations of the embodiments of the present application may be considered to be consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

1. An acoustic device, include: a vibration speaker configured to generate a vibration signal representing sound based on the electrical signal; a transmission mechanism, the transmission mechanism being mechanically connected to the vibration speaker, the transmission mechanism being configured to contact a user through a contact portion on the transmission mechanism and transmit the vibration signal to the user through the contact portion, the contact portion on the transmission mechanism being at a certain distance from the vibration speaker, and the vibration intensity of the contact portion being less than the vibration intensity of the vibration speaker; the transmission mechanism comprising an elastic element, the elastic element comprising at least one arc-shaped portion; A supporting assembly is mechanically connected to the vibration speaker through the transmission mechanism, and the supporting assembly is configured to support the transmission mechanism.

2. The acoustic device according to claim 1, It is characterized in that The first end of the at least one arcuate portion is mechanically connected to the support assembly, and the second end of the at least one arcuate portion is mechanically connected to the vibration speaker directly or through a connecting portion, wherein: The contact portion of the transmission mechanism is located on the at least one arc portion, and the vibration speaker vibrates around the contact portion in response to the vibration signal.

3. The acoustic device according to claim 1, It is characterized in that The contact area between the transmission mechanism and the user varies in response to the vibration signal.

4. The acoustic device according to claim 3, It is characterized in that The transmission mechanism comprises: a connecting unit, the vibration speaker being mechanically connected to a first end of the connecting unit; a vibration plate mechanically connected to the second end of the connection unit; and An elastic element, the supporting assembly is connected to the connecting unit through the elastic element, and the vibration speaker vibrates around a connection point between the supporting assembly and the elastic element in response to the vibration signal.

5. The acoustic device according to claim 1, It is characterized in that When the user wears the acoustic device, one surface of the vibration speaker faces the ear canal of the user.

6. The acoustic device according to claim 1, It is characterized in that The vibration speaker includes one or more openings, which are configured to transmit air-conducted sound waves generated in the vibration speaker housing to the user, and the one or more openings are arranged to face the user's ear canal when the user wears the acoustic device.

7. The acoustic device according to claim 1, It is characterized in that The acoustic device further comprises: The auxiliary supporting assembly is directly connected to the vibration speaker and is configured to support the vibration speaker.

8. The acoustic device according to claim 1, It is characterized in that The angle between the transmission mechanism and the plane where the user's skin is located ranges from 0° to 90°, or 0° to 70°, or 5° to 50°, or 10° to 50°, or 10° to 30°.

9. The acoustic device according to claim 1, It is characterized in that The lowest resonance peak of the vibration speaker is less than 90 Hz.

10. The acoustic device according to claim 9, It is characterized in that The vibration speaker comprises a magnetic circuit component, a vibration component and a shell, and the lowest resonance peak of the vibration speaker is related to the elastic modulus of the vibration component of the vibration speaker.

11. The acoustic device according to claim 1, It is characterized in that The support assembly includes a fixing portion, and the fixing portion is U-shaped or C-shaped.

12. The acoustic device according to claim 11, It is characterized in that The support assembly includes a housing structure having a cavity that can accommodate at least one of a battery, a Bluetooth device, or a circuit board.

13. An electronic device comprising an acoustic device, wherein the acoustic device include: a vibration speaker configured to generate a vibration signal representing sound based on the electrical signal; a transmission mechanism, the transmission mechanism being mechanically connected to the vibration speaker, the transmission mechanism being configured to contact a user through a contact portion on the transmission mechanism and transmit the vibration signal to the user through the contact portion, the contact portion on the transmission mechanism being at a certain distance from the vibration speaker, and the vibration intensity of the contact portion being less than the vibration intensity of the vibration speaker, the transmission mechanism comprising an elastic element, and the elastic element comprising at least one arc-shaped portion; A supporting assembly is mechanically connected to the vibration speaker through the transmission mechanism, and the supporting assembly is configured to support the transmission mechanism.

14. The electronic device according to claim 13, It is characterized in that The first end of the at least one arcuate portion is mechanically connected to the support assembly, and the second end of the at least one arcuate portion is mechanically connected to the vibration speaker, wherein, The contact portion of the transmission mechanism is located on the at least one arc portion, and the vibration speaker vibrates around the contact portion in response to the vibration signal.

15. The electronic device according to claim 13, It is characterized in that The contact area between the transmission mechanism and the user varies in response to the vibration signal.

16. The electronic device according to claim 15, It is characterized in that The transmission mechanism comprises: a connecting unit, the vibration speaker being mechanically connected to a first end of the connecting unit; a vibration plate mechanically connected to the second end of the connection unit; and An elastic element, the supporting assembly is connected to the connecting unit through the elastic element, and the vibration speaker vibrates around a connection point between the supporting assembly and the elastic element in response to the vibration signal.

17. The electronic device as claimed in claim 13, It is characterized in that The lowest resonance peak of the vibration speaker is less than 90 Hz.

18. The electronic device of claim 17, wherein the vibration speaker comprises a magnetic circuit component, a vibration component and a housing, and the lowest resonance peak of the vibration speaker is related to the elastic modulus of the vibration component of the vibration speaker.

Images