Bone conduction sound entertainment device

Abstract

The bone conduction sound-generating entertainment device provided by the present invention comprises: an edible object, a shell for supporting the edible object, a bone conduction sound-generating structure, a connector connected to an external device, and wires respectively connecting the connector and the bone conduction sound-generating structure. By eliminating or reducing the packaging shell of the traditional bone conduction sound-generating structure and directly realizing the packaging function by using the shell of the entertainment device, the design of the bone conduction sound-generating structure is simple and the integration is high. The function of improving the sound quality while increasing the number of different sound-generating structures and maintaining the miniaturization of the device is achieved. In addition, the use method of being edible and edible avoids the pressure of the traditional wearing method, reduces the sound quality loss caused by sound leakage, and protects the privacy of the user.

Description

Technical Field

[0001] The present application relates to the field of bone conduction technology, and in particular to a bone conduction sound-generating entertainment device. Background Art

[0002] With the development of electronic technology and the improvement of people's material living standards, bone conduction headphones, which are different from traditional headphones, have gradually emerged.

[0003] Bone conduction headphones use bone conduction to transmit sound, which is different from ordinary headphones that use their own vibrations to drive the vibration of nearby air, thereby transmitting sound through the air. Bone conduction sound generally refers to the technology of transmitting sound signals directly to the auditory system of humans or other organisms by vibrating biological tissues such as skin tissue, muscle tissue, teeth, and bones, without transmitting sound waves through the air, so that the auditory system can receive vibration signals and perceive them as sound. Part of the sound we hear when we speak is transmitted to the auditory system through bone conduction.

[0004] When in use, existing bone conduction sound devices usually need to be clipped behind the ears, cheeks or foreheads, etc., to transmit vibrations to skin tissue, muscle tissue and bones in turn until the auditory system. This wearing method is not convenient for users to fix the position of the bone conduction sound device when in use, and has a certain sense of oppression. It is not convenient for people with sensitive physiques, such as children and the elderly, to use bone conduction sound devices. Compared with air conduction devices, that is, general air sound wave conduction headphones, existing bone conduction sound devices have defects such as low output volume, narrow sound frequency range, high sound distortion, large low-frequency and high-frequency attenuation, and high power consumption. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to solve the problem of the sense of oppression when wearing a bone conduction sound-generating device, as well as the problem of a narrow sound frequency range, poor sound quality, and serious sound leakage.

[0006] The present invention provides a bone conduction sound-generating entertainment device, comprising: an edible object, a shell for supporting the edible object, a bone conduction sound-generating structure, a connector connected to an external device, and wires respectively connecting the connector and the bone conduction sound-generating structure; wherein:

[0007] The bone conduction sound-generating structure is arranged in the shell, and is used to generate a vibration signal driven by the electrical signal based on the sound electrical signal sent by the external device connected to the connector, so as to transmit the vibration signal to the auditory system of the object to be transmitted through the shell and the edible object when it contacts the inside of the mouth and / or teeth of the object to be transmitted.

[0008] In one possible design, the housing is an I-shaped housing.

[0009] In another possible design, the shell is a Y-shaped shell, and the number of the edible objects is two, which are respectively wrapped at the two head ends of the Y-shaped shell;

[0010] The number of the bone conduction sound-generating structures is two, which are respectively arranged at the two head ends.

[0011] Optionally, the bone conduction sound-generating structure is an electromagnetic bone conduction sound-generating structure, and the electromagnetic bone conduction sound-generating structure includes:

[0012] at least one voice coil, and at least one magnet.

[0013] Optionally, the bone conduction sound-generating structure is a piezoelectric bone conduction sound-generating structure, and the piezoelectric bone conduction sound-generating structure includes:

[0014] At least one piezoelectric piece, and at least one vibration plate.

[0015] In a possible design, the wire is an optical fiber, and the audio connector is an optical fiber connector; then the device further includes:

[0016] The optical signal conversion device is connected to the optical fiber and the bone conduction sound-generating structure respectively, and is used to convert the sound electrical signal to drive the bone conduction sound-generating structure to generate the vibration signal.

[0017] The present invention provides a bone conduction sound-generating entertainment device, comprising: an edible object, a shell for supporting the edible object, a bone conduction sound-generating structure, a connector connected to an external device, and wires respectively connecting the connector and the bone conduction sound-generating structure. By eliminating or reducing the packaging shell of the traditional bone conduction sound-generating structure and directly realizing the packaging function by using the shell of the entertainment device, the design of the bone conduction sound-generating structure is simple and highly integrated, achieving the function of improving the sound quality while increasing the number of different sound-generating structures and maintaining the miniaturization of the device. In addition, the edible and edible usage method avoids the pressure of the traditional wearing method, reduces the sound quality loss caused by sound leakage, and protects the privacy of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1A schematic diagram of the structure of a bone conduction sound entertainment device provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a bone conduction sound entertainment device provided by another embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by another embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the structure of a bone conduction sound entertainment device provided by yet another embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by yet another embodiment of the present invention;

[0025] Figures 7a to 7e Schematic diagrams of various specific structures of the bone conduction sound-generating structures of various embodiments of the present invention.

[0026] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] The following specific embodiments are used to describe in detail the technical solutions of the present invention and how the technical solutions of the present application solve the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] In the prior art, bone conduction sound-generating devices are usually worn behind the ears to transmit vibrations to the skin tissue, muscle tissue, bones and finally the auditory system. However, this wearing method is not convenient for users to fix the position of the bone conduction sound-generating device when using it. In order to ensure a certain sound quality, the bone conduction sound-generating device and the fitting part need to be tightly fitted, which brings a certain sense of pressure to the user when using it. Third, continuous pressure can cause local skin rashes for people with sensitive skin or physique, such as children or the elderly. Fourth, this wearing method is easy to cause discomfort in hot weather and is not conducive to heat dissipation.

[0031] In addition, more importantly, the bone conduction sound-generating devices in the prior art still have defects such as a narrow frequency range, which leads to poor sound quality. Although the sound quality can be improved by installing multiple bone conduction sound-generating devices like ordinary speakers, the number, volume and weight of the required devices will be greatly increased, which will further cause inconvenience and pressure when wearing. In addition, especially when the bone conduction device is worn behind the user's ear or forehead, it will be limited by the use of space, that is, the sound quality cannot be improved by increasing the number of devices.

[0032] The design concept of the present invention is to change the structure of the effective part of the bone conduction sound structure to form an integrated sound structure, that is, to increase the effective structure that can produce different sound frequency ranges and integrate them together. Instead of increasing the audio frequency range as a whole, the entire sound component including its packaging shell is used as a whole like the prior art. Secondly, it breaks the traditional wearing method and achieves a better hearing effect through an oral form or a bite form, which not only does not cause a sense of oppression, but also effectively avoids sound leakage.

[0033] Figure 1 This is a schematic diagram of the structure of a bone conduction sound entertainment device provided by an embodiment of the present invention. Figure 1 As shown, the bone conduction sound-generating entertainment device of this embodiment includes: edible 7, shell 1, connector 2, bone conduction sound-generating structure 5, and wire 21. The shell 1 has at least one head 11 supporting the edible 7, and the edible 7 is wrapped or attached to the outside of the head 11. The edible 7 includes candy, chocolate, teeth sticks, meat jerky and other foods, and can also be medicines, and the edible 7 can be composed of two or more different edibles. The bone conduction sound-generating structure 5 is built into the cavity formed by the head 11 and connected to the head 11. The connector 2 is connected to the bone conduction sound-generating structure 5 through the wire 21. After the external device is connected to the connector 2, the control signal is transmitted to the sound-generating structure 5 through the wire 21, and the sound-generating structure 5 generates vibration, which is transmitted to the edible 7 through the head 11. The user puts the edible 7 into the mouth or bites it, and the vibration can be transmitted to the auditory system through the oral tissue.

[0034] Optionally, the material of the edible object 7 in this embodiment includes a rigid material or a colloid material with high hardness, which is suitable for conducting vibration signals. The colloid material refers to a semi-solid gel material that can maintain a certain shape, such as agar.

[0035] In a possible embodiment, the edible object 7 may have a liquid filling, specifically, as Figure 1 As shown, the edible material 7 includes an outer layer 71 and an inner layer 72, wherein the outer layer 71 covers the outer side of the inner layer 72. The inner layer 72 may be a liquid material, such as liquid syrup or other liquid edibles, and the outer layer 71 may be a rigid material or a hard gelatin material, which is suitable for contacting with teeth to transmit vibration signals and prevent the liquid inner layer 72 from flowing out. The liquid material of the inner layer 72 includes a solution, a suspension, and an emulsion.

[0036] In this embodiment, the shell 1 may further include a handle-shaped portion 12. The handle-shaped portion 12 may be formed into a shape suitable for the user to grasp, or the shape of the grasping may be determined according to the type of user. For example, a soft and lightweight material may be provided to wrap children to enhance the user's comfort during use. The handle-shaped portion 12 may be made into different lengths to meet the needs of children of different age groups, or may be made into the shape of a cartoon character or an animal to enhance the attractiveness of the appearance to the user, enrich the product form of the bone conduction sound entertainment device, and meet the needs of different users.

[0037] One or more hollow cavities may be formed inside the shell 1, and the bone conduction sound-emitting structure 5 may be configured as a plurality of sound-emitting structures integrated in one cavity, or a plurality of sound-emitting structures may be integrated in one cavity as a group, and the others may form another group and be integrated in another cavity.

[0038] Compared with the prior art, the present embodiment integrates the sound-generating structure and cancels the original sound-generating structure packaging shell. The shell 1 is directly connected to the sound-generating structure. The shell 1 can also achieve the same packaging performance as the original packaging shell. In addition, since the packaging shell is cancelled, the bone conduction vibration signal has one less layer of obstruction during the transmission process, which reduces the vibration loss, thereby achieving the effect of improving the sound quality of bone conduction.

[0039] It should be noted that the user mentioned in this embodiment can be a human or other animals with an oral cavity, such as a puppy or a kitten. This embodiment does not limit the user. In this embodiment and subsequent examples, the bone conduction sound entertainment device is mainly used on humans as an example for detailed description.

[0040] The bone conduction sound-generating entertainment device provided in this embodiment includes: an edible object, a shell for supporting the edible object, a bone conduction sound-generating structure, a connector connected to an external device, and wires respectively connecting the connector and the bone conduction sound-generating structure. By eliminating or reducing the packaging shell of the traditional bone conduction sound-generating structure and directly realizing the packaging function by using the shell of the entertainment device, the design of the bone conduction sound-generating structure is simple and the integration is high. The function of improving the sound quality while increasing the number of different sound-generating structures and maintaining the miniaturization of the device is achieved. In addition, the edible and edible usage method avoids the pressure of the traditional wearing method, reduces the sound quality loss caused by sound leakage, and protects the privacy of the user.

[0041] Figure 2 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by an embodiment of the present invention. Figure 1 The bone conduction sound entertainment device shown is introduced as follows: Figure 2As shown, the user 9 connects the connector 2 of the bone conduction sound entertainment device to the data interface of the external device 8. The external device 8 in this embodiment includes a smart phone, a tablet computer, an MP3, an MP4, a dedicated music amplifier device, etc. After the external device 8 is connected to the connector 2, the sound source stored in the external device 8 can be transmitted to the bone conduction sound entertainment device in the form of an electrical signal. The bone conduction sound structure 5 receives the sound source electrical signal through the wire connected to the connector 2, and converts the electrical signal into a vibration signal, so that the vibration element of the bone conduction sound structure 5 vibrates. The user puts the head 11 of the shell 1 into the mouth and holds it, or bites the edible 7 attached to the head 11 with teeth, and the vibration can be transmitted to the edible 7 through the head 11, and further transmitted to the user's oral tissue or tooth tissue, thereby performing bone conduction and finally transmitting to the user's auditory system. The user can operate the external device 8 to perform various controls on the bone conduction sound entertainment device, including: turning on or off the entertainment device, adjusting the volume, previous / next song, fast forward / rewind, playing custom recordings, transmitting sound signals in video files or other applications, etc.

[0042] Figure 3 This is a schematic diagram of the structure of a bone conduction sound entertainment device provided by another embodiment of the present invention. Figure 3 As shown, the housing 1 in this embodiment includes a trunk 13 and at least two branches 14, and each branch 14 has a head 11 at the end of the head 11 that supports the edible object 7. The cavity of each head 11 is connected to a bone conduction sound-emitting structure 5. A certain angle is formed between the multiple branches 14, so that the heads 11 are dispersed, so that the heads 11 can contact different positions in the mouth of the user 9 to conduct vibration signals. The trunk 13 and the branches 14 can be slender rigid rods or flexible cables, or can form a combination of rigid rods and flexible cables, so that the user 9 can connect the connector 2 to the external device 8 when in use. Other structures and Figure 1 Similar, no further elaboration.

[0043] It should be noted that the housing 1 can be designed into different shapes according to actual conditions, or have multiple branches, including Figure 1 The I-shaped housing shown has 1 branch, Figure 3 The Y-shaped housing shown has 2 branches, and other housing shapes may have multiple branches.

[0044] Setting up multiple bone conduction sound devices in multiple branches can achieve multi-channel playback of sounds in different frequency ranges, thereby improving the sound effect and sound quality and forming a stereo surround sound effect.

[0045] Figure 4 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by another embodiment of the present invention. Figure 4As shown, the user 9 connects the connector 2 of the bone conduction sound entertainment device to the data output interface of the external device 8. The external device 8 in this embodiment includes a smart phone, a tablet computer, an MP3, an MP4, a dedicated music amplifier device, etc. After the external device 8 is connected to the connector 2, the sound source stored in the external device 8 can be transmitted to the bone conduction sound entertainment device in the form of an electrical signal. The bone conduction sound structure 5 receives the sound source electrical signal through the wire connected to the connector 2, and converts the electrical signal into a vibration signal, so that the vibration element of the bone conduction sound structure 5 vibrates. The user puts the two branch heads 11 of the shell 1 into the mouth and holds them, or bites the edible 7 attached to the head 11 with teeth. The two heads 11 are in contact with the left and right sides of the mouth respectively, and the vibration can be transmitted to the edible 7 through the head 11, and further transmitted to the oral tissue or tooth tissue of the user, thereby performing bone conduction, forming the effect of two left and right sound channels, and transmitting to the user's auditory system.

[0046] Figure 5 This is a schematic diagram of the structure of a bone conduction sound entertainment device provided by another embodiment of the present invention. Figure 5 As shown, in this embodiment, the shell 1 includes a head 11, and the edible object 7 can cover at least a portion of the outer surface of the head 11. In this embodiment, the edible object 7 is a molar stick, the connector 2 is an optical fiber connector, the wire 21 is an optical fiber, and the bone conduction sound-generating structure 5 is an optical signal conversion device. The shell 1 also has a connecting section 12, one end of the connecting section 12 is connected to the head 11, and the other end is connected to the connector 2. The connecting section 12 can be a slender rigid rod or a flexible cable, or it can also form a combination of a rigid rod and a flexible cable, or other rigid shapes or flexible shapes that are easy to hold, or the shape of a person or animal, plant or cartoon character. The provision of the connecting section 12 can form a certain distance between the head 11 and the connector 2, which is convenient for the user to connect the connector to an external device when in use.

[0047] Figure 6 A schematic diagram of a usage scenario of a bone conduction sound entertainment device provided by another embodiment of the present invention. Figure 6 As shown, first insert one end of the optical fiber connector into a player with an optical fiber interface. Play an audio file on the player. The optical fiber connector receives the optical signal of the audio on the device and transmits the optical signal to the optical signal conversion device through the optical fiber. The optical signal conversion device converts the optical signal in the optical fiber into an electrical signal. It is further converted into a corresponding vibration through the voice coil and magnet in the bone conduction sound-generating structure 5 and transmitted to the molar rod.

[0048] When a person contacts the molar stick with his mouth, the molar stick transmits vibration signals to the mouth or teeth, and the molar stick further transmits sound signals to the auditory system through the mouth or teeth.

[0049] In order to further illustrate the specific implementation methods of the bone conduction sound generating structure 5 in the above-mentioned embodiments of the present invention, several specific implementation methods are described as examples below.

[0050] Figures 7a to 7e Schematic diagrams of various specific structures of the bone conduction sound-generating structures of various embodiments of the present invention.

[0051] In the above-mentioned embodiments of the present invention, the bone conduction sound-generating structure 5 includes: at least one power receiving element 31 and at least one vibration element 41 . Figure 7a The power receiving element is the voice coil 31, and the vibration element is the magnet 41, but the specific forms of the power receiving element and the vibration element are not limited thereto.

[0052] It should be noted that the magnet 41 of this embodiment can also be a magnet composed of a coil, or a magnet composed of a coil and a magnet. Similarly, the voice coil 31 can also be a magnet composed of a coil and / or a magnet. In the present application, a magnet refers to a component that can generate a magnetic field or a structural module that can generate a magnetic field. The magnets and voice coils mentioned in the following embodiments may have similar implementations, which are explained here and will not be repeated below. The present invention does not limit the specific form of the magnet, and all components that can generate a magnetic field fall within the scope of the magnet described in the present invention.

[0053] The voice coil 31 and the magnet 41 form a group of transducer units 51, and the transducer unit 51 generates a vibration signal according to the electrical signal sent by the wire 21. When the power receiving element and the vibration element are both determined elements, the frequency response characteristics of the transducer unit 51 are determined accordingly, and the sound module has a fixed frequency response curve. In this embodiment, the function of the transducer unit 51 is to convert electrical energy into a magnetic field through the voice coil 31. The energized voice coil 31 generates a magnetic field, which acts magnetically with the magnet 41, so that the magnet 41 applies pressure to the head 11 through a mechanical connection, causing the head 11 to deform. The strength of the magnetic field is adjusted by an electrical signal, and the deformation amount is changed accordingly, causing the head 11 to vibrate together with the magnet 41, so that the external device 8 sends an electrical signal transmitted to the voice coil 31 through the connector 2 and the wire 21, which is converted into a vibration signal carrying sound information, that is, vibration sound is realized.

[0054] Optionally, the transducer unit 51 may also include at least one elastic structure or elastic element 6 connected to the head 11 to transmit the vibration signal generated by the vibration element to the head 11. The elastic element or elastic structure 6 includes a spring, a rubber block, etc. The frequency response characteristics of the corresponding transducer unit 51 can be adjusted by adjusting the specific form, structure, material and other parameters of the elastic element or elastic structure 6.

[0055] Figure 7b to Figure 7e They are schematic diagrams of the structures of the second to fifth transducer units of this embodiment. Figure 7b to Figure 7eAs shown, in another optional embodiment, the bone conduction sound-generating structure 5 includes at least two power receiving elements and / or at least two vibration elements, whereby the power receiving elements and the vibration elements form at least two groups of transducer units, each of which is used to generate a corresponding vibration signal in response to an electrical signal sent by an external device 8 (not shown in the figure). When the transducer unit includes at least two power receiving elements and the power receiving element is a voice coil, the multiple voice coils can be arranged coaxially, arranged side by side, or arranged in other ways. In each transducer unit, if there are multiple groups of vibration groups formed by magnets and coils, each vibration group can have different frequency response characteristics. Further optionally, each group of transducer units can have the same frequency response characteristics or different frequency response characteristics. When multiple transducer units have more than two frequency response characteristics, the control system can drive different transducer units to work with different frequency response curves, thereby selecting one or more groups of transducer units with specific frequency response characteristics to vibrate according to specific circumstances, which can significantly improve the sound quality.

[0056] like Figure 7b As shown, in an optional embodiment, the number of receiving elements and vibrating elements is the same, and the receiving elements correspond to the vibrating elements one by one. Each receiving element is electrically connected to the external device 8 through a wire 21 and a connector 2 and drives a corresponding vibrating element to vibrate, thereby forming multiple groups of transducer units. Figure 7b The lollipop based on bone conduction sound generation shown includes two power receiving elements and two vibration elements, forming two groups of transducer units, namely transducer unit 521 and transducer unit 522. The frequency response characteristics of the multiple groups of transducer units can be different. The external device 8 can drive one or more groups of transducer units corresponding to the frequency response characteristics to vibrate according to the frequency band characteristics of the sound information. Specifically, the external device 8 sends corresponding electrical signals to the group or groups of transducer units whose frequency of the resonance peak matches the frequency band characteristics of the sound information the most. Figure 7b In the embodiment, the power receiving elements are the voice coils 321 and 322, and the vibration elements are the magnets 421 and 422, but the specific forms of the power receiving elements and the vibration elements are not limited thereto.

[0057] In another optional embodiment, if Figure 7c As shown, the bone conduction sound-generating structure includes at least two vibration elements and forms at least two groups of transducer units, and at least two groups of transducer units have a common power receiving element, that is, at least one power receiving element can drive more than two different vibration elements. Figure 7c In the embodiment, the power receiving element is a voice coil and the vibration element is a magnet. Of course, the power receiving element and the vibration element may also be other elements. Figure 7cAs shown, the sound-generating component includes a voice coil 331 and two magnets 431 and 432. The two magnets 431 and 432 are respectively arranged on both sides of the voice coil 331, and the two magnets 431 and 432 are both within the effective action range of the magnetic field generated by the voice coil 331, that is, the voice coil 331 can drive both the magnet 431 and the magnet 432, thereby forming two groups of transducers, namely, the transducer unit 531 and the transducer unit 532. Of course, the two magnets 431 and 432 can also be arranged on the same side of the voice coil 331. The weight, size, material, and magnetic air gap between the two magnets 431 and 432 and the voice coil 331 can be different, thereby, the two groups of transducers 531 and 532 have different frequency response characteristics. When the external device 8 sends an electrical signal to the voice coil 331 through the connector 2 and the wire 21, the two magnets 431 and 432 are driven to vibrate, so that the vibration signal output by the lollipop based on bone conduction sound generation is the superposition effect of the two groups of transducer units 531 and 532, thereby improving the sound quality of the lollipop based on bone conduction sound generation and reducing the overall volume of the sound-generating components. Figure 7c The two groups of transducer units 531 and 532 can form a transducer unit pair. Those skilled in the art can set one or more transducer units in the bone conduction sound-generating structure according to actual needs. Figure 7c The pair of transducer units shown in .

[0058] In another optional embodiment, if Figure 7d and Figure 7e As shown, the bone conduction sound-generating structure includes at least two power-receiving elements and forms at least two groups of transducer units, and at least two groups of transducer units have a common vibration element, that is, at least one vibration element can be driven to vibrate by at least two power-receiving elements, thereby reducing the overall volume of the sound-generating module. Figure 7d In the example, the power receiving element is the voice coil and the vibrating element is the magnet. Figure 7e In the embodiment, the power receiving element is a piezoelectric sheet and the vibration element is a vibration plate. It can be understood that the power receiving element and the vibration element can also be other elements.

[0059] Further optionally, if Figure 7dAs shown, the sound-generating component includes two voice coils 341, 342 and a magnet 44, and the magnet 44 is within the effective range of the magnetic field generated by the two voice coils 341, 342, that is, the magnet 44 can be driven by both the voice coil 341 and the voice coil 342, thereby forming two groups of transducer units, namely, the transducer unit 541 and the transducer unit 542. It can be understood that those skilled in the art can set more power receiving elements to share a vibration element to form multiple groups of transducer units. The two voice coils 341, 342 can be arranged on the same side of the magnet 44, or can be arranged at both ends of the magnet 44 respectively. Optionally, the magnet 44 and the two voice coils 341, 342 are coaxially arranged to facilitate balanced driving of the magnet 44. The number of turns, materials and magnetic air gaps of the two voice coils 341, 342 and the magnet 44 can be different, thereby, the two groups of transducer units 541, 542 have different frequency response characteristics. The external device 8 can send an electrical signal to one of the voice coils to drive the magnet to vibrate according to the frequency band characteristics of the sound information. Specifically, the external device 8 sends a corresponding electrical signal to a group of transducer units whose frequency of the resonance peak matches the frequency band characteristics of the sound information the most through the connector 2 and the wire 21. The external device 8 can also send electrical signals to both voice coils 341 and 342 through the connector 2 and the wire 21, so that the magnet 44 is driven by the superimposed alternating magnetic field generated by the two voice coils 341 and 342, which can increase the amplitude of the magnet 44 and thus increase the volume. Figure 7d The two groups of transducer units 541 and 542 in the figure can form a transducer unit pair. Those skilled in the art can set one or more transducer units in the bone conduction sound generation structure according to actual needs. Figure 7d The pair of transducer units shown in .

[0060] Further optionally, if Figure 7e As shown, the bone conduction sound-generating structure includes two vibration plates 451, 452 and six piezoelectric sheets 351, 352, 353, 354, 355, 356, of which three piezoelectric sheets 351-353 are mechanically connected to different positions on the vibration plate 451, and the other three piezoelectric sheets 354-356 are mechanically connected to different positions on another vibration plate 452, that is, the three piezoelectric sheets share one vibration plate. Thus, the sound-generating module forms six groups of transducer units, namely transducer units 551-556. The vibration plate is connected to the housing 1, and the piezoelectric sheet is stimulated by the electrical signal to generate mechanical deformation, driving the vibration plate to generate a vibration signal, and the vibration plate transmits the vibration signal to the head 11 of the housing 1. The frequency response characteristics of each group of transducer units can be adjusted by changing the model of the piezoelectric sheet, the connection position between the piezoelectric sheet and the vibration plate, and the size and material of the vibration plate. Figure 7e The frequency response characteristics of the six groups of transducer units 551-556 can be completely different, thereby further broadening the frequency response range of the sound module.

[0061] It can be understood that the number of the above-mentioned piezoelectric sheets is not limited to three, that is, the piezoelectric sheet can be set to at least one, and the present application does not limit the position of the piezoelectric sheet. Technical personnel in this field can set the number of piezoelectric sheets and the position of each piezoelectric sheet on the vibration plate according to specific circumstances.

[0062] In addition, for any of the above embodiments, the entertainment device based on bone conduction sound generation may also include a switch element, through which the user can input a switch signal or a volume adjustment signal, and transmit the signal to the external device and the bone conduction sound generation structure. The switch element may be implemented as a button switch, or a toggle switch, or a volume adjuster, or a sensor, such as a photosensitive sensor, a temperature sensor, a humidity sensor, a voice control sensor, a capacitive sensor, or a combination of at least two of them. Specifically, when the user puts the entrappable part of the head 11 into the mouth, the photosensitive sensor detects that there is no light around, which can be considered to have triggered the opening instruction. Of course, in order to prevent misjudgment when the device is held in the hand, a temperature and humidity sensor can also be added, because the oral temperature is higher than the body surface temperature, and the oral cavity is moist. Through the combination of the three, the user's switch demand can be accurately judged, thereby realizing automatic switching. The external device and the bone conduction sound generation structure respond to the opening signal sent by the switch and send an electrical signal to the corresponding one or more groups of transducer units.

[0063] The present embodiment provides a bone conduction sound-generating entertainment device, comprising: an edible, a shell for supporting the edible, a bone conduction sound-generating structure, a connector connected to an external device, and wires respectively connecting the connector and the bone conduction sound-generating structure. By eliminating or reducing the packaging shell of the traditional bone conduction sound-generating structure and directly realizing the packaging function by using the shell of the entertainment device, the design of the bone conduction sound-generating structure is simple and highly integrated, achieving the function of improving the sound quality while increasing the number of different sound-generating structures and maintaining the miniaturization of the device. In addition, the edible and edible usage method avoids the pressure of the traditional wearing method, reduces the sound quality loss caused by sound leakage, and protects the privacy of the user.

[0064] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0065] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A bone conduction sound entertainment device, characterized in that: include: An edible object, a shell for supporting the edible object, a bone conduction sound-generating structure, a connector connected to an external device, and a wire connecting the connector and the bone conduction sound-generating structure respectively; wherein, The bone conduction sound-generating structure is arranged in the housing, and is used to generate a vibration signal driven by the electrical signal based on the sound electrical signal sent by the external device connected to the connector, so as to transmit the vibration signal to the auditory system of the object to be transmitted to when it contacts the inside of the oral cavity and / or teeth of the object to be transmitted to through the housing and the edible object; The bone conduction sound-generating structure includes at least one power receiving element and at least two vibration elements, or at least two power receiving elements and at least one vibration element. The power receiving element and the vibration element form at least two groups of transducer units, and each transducer unit in the at least two groups of transducer units has different frequency response characteristics; the transducer unit is used to generate a corresponding vibration signal in response to the sound electrical signal sent by the external device.

2. The bone conduction sound entertainment device according to claim 1, characterized in that: The shell is an I-shaped shell.

3. The bone conduction sound entertainment device according to claim 1, characterized in that: The shell is a Y-shaped shell, and the number of the edible objects is two, which are respectively wrapped at the two head ends of the Y-shaped shell; The number of the bone conduction sound-generating structures is two, which are respectively arranged at the two head ends.

4. The bone conduction sound entertainment device according to any one of claims 1 to 3, characterized in that: The bone conduction sound-generating structure is an electromagnetic type bone conduction sound-generating structure, the power receiving element is a voice coil, and the vibration element is a magnet.

5. The bone conduction sound entertainment device according to any one of claims 1 to 3, characterized in that: The bone conduction sound-generating structure is a piezoelectric type bone conduction sound-generating structure, the power receiving element is a piezoelectric sheet, and the vibration element is a vibration plate.

6. The bone conduction sound entertainment device according to any one of claims 1 to 3, characterized in that: The wire is an optical fiber, and the audio connector is an optical fiber connector; the device further comprises: The optical signal conversion device is connected to the optical fiber and the bone conduction sound-generating structure respectively, and is used to convert the sound electrical signal to drive the bone conduction sound-generating structure to generate the vibration signal.

Images