Intelligent glasses capable of reducing sound leakage

Abstract

The utility model provides intelligent glasses capable of reducing sound leakage, which comprise a glasses frame and glasses legs, the two sides of the glasses frame are respectively provided with one glasses leg, at least one of the glasses legs is internally provided with a bone vibrator module, the glasses legs are internally provided with vibrator cavities, the vibrator cavities are internally provided with the bone vibrator modules, and the bone vibrator modules are arranged in the vibrator cavities. An air leakage hole is formed in the cavity wall of one side, facing the other glasses leg, of the vibrator cavity, one end, deviating from the other glasses leg, of the bone vibrator module is communicated with the air leakage hole, and the surface, facing the other glasses leg, of the bone vibrator module is close to the cavity wall of the vibrator cavity close to the other glasses leg; and the air leakage hole is arranged in a manner of deviating from the close area of the bone vibrator module and the cavity wall of the vibrator cavity. Through a bone conduction design scheme, external leakage sound is reduced; furthermore, air holes are formed in the periphery of the bone vibrator diaphragm, opposite-phase sound is conducted to the front face, positive-phase sound on the front face and positive-phase sound on the front face are mutually counteracted through the phase counteracting principle, and leaked sound is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent wearable devices, in particular to an intelligent glasses with reduced sound leakage. Background Technique

[0002] The popularization of wearable electronic products has greatly improved the work efficiency and entertainment of human beings. Among them, taking intelligent glasses as an example, it is a huge challenge to produce high-quality sound in a narrow space. Conventional intelligent glasses adopt a micro-speaker cavity design, which has high sound production efficiency but insufficient frequency bandwidth. Moreover, the closed cavity design will cause relatively large sound leakage, which cannot protect personal privacy and greatly interferes with the surrounding environment. To solve the above problems, there has emerged on the market a bone conduction solution that uses a bone oscillator module for sound playback. The essence of bone conduction sound playback is that part of it uses the bone oscillator module to closely adhere to the facial skin to transmit sound to the facial bones, and then the facial bones transmit it to the inner ear cochlea, so that the human ear perceives the sound. Another part is that the diaphragm of the bone oscillator module vibrates to generate sound in the air, which is conducted by the air to the cochlea and is perceived by people. However, there will still be some sound leakage, which is not conducive to protecting privacy. To further eliminate sound leakage, there have appeared intelligent glasses that use two bone oscillators with opposite sound phases. For example, as shown in the patent document with the publication number CN115734132A, by using an anti-phase bone oscillator to cancel the sound phase of a positive-phase bone oscillator, two bone oscillators are required on one side, and four bone oscillators are required on both sides, which greatly increases the production cost. Content of the Utility Model

[0003] To solve the above problems, the purpose of the utility model is to provide an intelligent glasses with reduced sound leakage.

[0004] The utility model is realized by the following method: an intelligent glasses with reduced sound leakage, including a frame and temple arms. One temple arm is installed on each side of the frame. At least one of the temple arms is provided with a bone oscillator module. An oscillator cavity is arranged in the temple arm, and the bone oscillator module is installed in the oscillator cavity. An air leakage hole is opened on the cavity wall of the oscillator cavity facing the other temple arm. One end of the bone oscillator module facing away from the other temple arm is communicated with the air leakage hole. The surface of the bone oscillator module facing the other temple arm is close to the cavity wall of the oscillator cavity close to the other temple arm. The air leakage hole is arranged deviating from the area where the bone oscillator module is close to the cavity wall of the oscillator cavity.

[0005] Preferably, the bone oscillator module includes an oscillator monomer and an oscillator housing. The oscillator housing is connected to the cavity wall of the oscillator cavity close to the other temple arm. The oscillator monomer is arranged in the oscillator housing, and sound outlet holes are opened on the surface of the oscillator housing.

[0006] Preferably, there is a gap between the oscillator housing and the cavity wall of the oscillator cavity facing away from the other temple, and there is a gap between the oscillator housing and the cavity walls on the front side and / or the rear side of the oscillator cavity along the axial direction of the temple.

[0007] Preferably, there are a plurality of air release holes, and the air release holes communicate with the gaps between the oscillator housing and the cavity walls on the front side or the rear side of the oscillator cavity along the axial direction of the temple.

[0008] Preferably, the sound outlet holes are provided on one side of the oscillator housing facing the other temple and on one side of the oscillator housing facing away from the other temple.

[0009] Preferably, hanging patterns are provided on one side of the oscillator housing facing the other temple and on one side of the oscillator housing facing away from the other temple. The hanging patterns are connected to hang the oscillator element, and the sound outlet holes are located between the hanging patterns.

[0010] Preferably, it further includes a control circuit board disposed in the spectacle frame or the temple, and the control circuit board is communicatively connected to the bone oscillator module.

[0011] Preferably, the cavity wall of the oscillator cavity facing the other temple is made of a flexible material, and the oscillator housing is connected to the flexible material.

[0012] Preferably, the air release holes are opened on the flexible material.

[0013] Preferably, the oscillator cavity is dug from one side of the temple facing the other temple to the side facing away, and the flexible material covers the side of the oscillator cavity facing the other temple.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a smart glasses for reducing sound leakage. Compared with the prior art, the utility model has at least the following technical effects: 1. By opening an air vent on the side of the vibrator cavity facing the head, the air vent is connected to the back of the bone vibrator module, so that the acoustic phase of the bone vibrator module that is in contact with the front of the human face is 0 degrees, and on the contrary, the acoustic phase of the back vibration is 180 degrees. Since the sound waves generated by the bone vibrator module are diffracted from the air vent connected to it to the front, the two acoustic phases are completely opposite, and the sound amplitude cancellation is close to 0, that is, no sound is generated. This effect is utilized to greatly reduce sound leakage, protect personal privacy, and reduce external interference. The frequency of bone conduction vibration is low, the bandwidth is wide, the sound quality restoration is better, and the sound quality is further improved. In this case, a single bone vibrator module is used to achieve positive and negative phase cancellation. Compared with the sound phase cancellation of positive phase bone vibrator and negative phase bone vibrator, the production cost is greatly reduced. 2. Sound outlet holes are provided on the front and back of the vibrator shell, so that the sound emitted from the back of the vibrator unit can be diffracted to the vent hole and discharged, while the front side is in contact with the cavity wall of the vibrator cavity and directly transmitted to the front of the face through the cavity wall. The two are in opposite phases and can cancel each other out to reduce sound leakage. 3. There is a gap between the back of the vibrator shell and the cavity wall of the vibrator cavity away from the other temple, and there is a gap between the vibrator shell and the cavity wall of the vibrator cavity on the front and / or rear sides along the axial direction of the temple to form a channel connecting the vent hole and the back of the vibrator unit, so that the sound emitted from the back of the vibrator unit can be diffracted along the channel to the vent hole in contact with the face on the front side, achieving phase cancellation with the sound emitted from the front of the vibrator unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a pair of smart glasses for reducing sound leakage.

[0016] Figure 2 This is another structural schematic diagram of the smart glasses for reducing sound leakage of the utility model.

[0017] Figure 3 It is a schematic diagram of the state in which the bone vibrator module of the utility model is installed in the vibrator cavity.

[0018] Figure 4 It is a propagation schematic diagram of the positive and negative sound phases of the utility model.

[0019] Explanation of the accompanying drawings: 1. Frame; 2. Temple; 21. Vibrator cavity; 3. Bone vibrator module; 31. Vibrator monomer; 32. Vibrator shell; 33. Sound outlet hole; 34. Suspension pattern; 4. Air vent; 5. Flexible material; 6. Control circuit board. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Please refer to Figures 1 to 4 , an intelligent glasses for reducing sound leakage, comprising a frame 1 and temple arms 2. A temple arm 2 is respectively installed on both sides of the frame 1. At least one of the temple arms 2 is provided with a bone oscillator module 3. An oscillator cavity 21 is provided in the temple arm 2, and the bone oscillator module 3 is installed in the oscillator cavity 21. An air vent 4 is formed in the cavity wall of the oscillator cavity 21 facing the other temple arm 2. One end of the bone oscillator module 3 facing away from the other temple arm 2 is communicated with the air vent 4. The surface of the bone oscillator module 3 facing the other temple arm 2 is close to the cavity wall of the oscillator cavity 21 close to the other temple arm 2. The air vent 4 is arranged deviating from the area where the bone oscillator module 3 is close to the cavity wall of the oscillator cavity 21. By providing the air vent 4 on the side of the oscillator cavity 21 facing the head, the air vent 4 keeps the air pressure inside and outside the oscillator cavity 21 balanced, and is also conducive to the internal sound being transmitted to the outside. The air vent 4 is communicated with the back of the bone oscillator module 3. In this way, the sound phase of the bone oscillator module 3 vibrating on the front of the human face is 0 degrees, and the sound phase of the back vibration is 180°. Since the sound wave generated by the bone oscillator module 3 leaks out from the air vent 4 communicated with it and diffracts to the front, the two sound phases are completely opposite, and the sound amplitude cancels out close to 0, that is, no sound is generated. Using this effect greatly reduces sound leakage, protects personal privacy, and reduces external interference. And the frequency of bone conduction vibration is lower, the frequency bandwidth is wider, and the sound quality reduction is better, further improving the sound quality. In this case, the anti-phase sound wave on the back of a single bone oscillator module 3 is conducted through the air to cancel the in-phase sound wave on the front of the bone oscillator module 3. The structure is simple. Compared with the in-phase bone oscillator and the anti-phase bone oscillator for sound phase cancellation, a single oscillator can achieve sound leakage cancellation, greatly reducing the production cost.

[0022] Please refer to Figures 1 to 4 , preferably, the bone oscillator module 3 includes an oscillator unit 31 and an oscillator housing 32. The oscillator housing 32 is connected to the cavity wall of the oscillator cavity 21 close to the other temple arm 2. The oscillator unit 31 is arranged in the oscillator housing 32. Sound outlet holes 33 are formed on the front and back surfaces of the oscillator housing 32. Sound outlet holes 33 are provided on both the front and back surfaces of the oscillator housing 32, so that the sound generated on the back of the oscillator unit 31 can diffract to the air vent 4 and leak out, while the front of the oscillator housing 32 is close to the cavity wall of the oscillator cavity 21 and directly transmits through the cavity wall to the front of the human face. The two phases are opposite, so they can cancel each other out to reduce sound leakage.

[0023] Please refer to Figures 1 to 4, preferably, there is a gap between the oscillator housing 32 and the cavity wall of the oscillator cavity 21 facing away from the other temple 2, and there are gaps between the oscillator housing 32 and the cavity walls on the front side and / or the rear side of the oscillator cavity 21 along the axial direction of the temple 2. There is a gap between the back surface of the oscillator housing 32 and the cavity wall of the oscillator cavity 21 facing away from the other temple 2, and there are gaps between the oscillator housing 32 and the cavity walls on the front side and / or the rear side of the oscillator cavity 21 along the axial direction of the temple 2, so as to form a channel connecting the vent hole 4 and the back surface of the oscillator element 31, enabling the sound emitted from the back surface of the oscillator element 31 to diffract along this channel to the vent hole 4 in contact with the face on the front side, achieving phase cancellation with the sound emitted from the front surface of the oscillator element 31.

[0024] Please refer to Figures 1 to 4 , preferably, there are a plurality of vent holes 4, and the vent holes 4 communicate with the gaps between the oscillator housing 32 and the cavity walls on the front side or the rear side of the oscillator cavity 21 along the axial direction of the temple 2. The multiple vent holes 4 making sound together have a better effect of canceling leaked sound. Preferably, vent holes 4 can be provided on both the front side and the rear side in the axial direction of the temple 2. Through the bone conduction design solution, the externally leaked sound is reduced; further, holes are drilled around the bone oscillator diaphragm (flexible material 5), and through the principle of phase cancellation, the leaked sound is greatly reduced.

[0025] Please refer to Figures 1 to 4 , preferably, the sound outlet holes 33 are provided on the side of the oscillator housing 32 facing the other temple 2 and the side facing away from the other temple 2. Facilitate the sound emitted by the oscillator element 31 to be transmitted out through the front sound outlet holes 33 and the back sound outlet holes 33 respectively, forming a 0° sound phase and a 180° sound phase.

[0026] Please refer to Figures 1 to 4 , preferably, hanging patterns 34 are provided on the side of the oscillator housing 32 facing the other temple 2 and the side facing away from the other temple 2. The hanging patterns 34 are connected to hang the oscillator element 31, and the sound outlet holes 33 are located between the hanging patterns 34. Provide the condition for the linear support of the electromagnetic induction between the coil of the oscillator element 31 and the magnet (oscillator housing 32), so that the oscillator element 31 can vibrate and emit sound.

[0027] Please refer to Figures 1 to 4, preferably, it further includes a control circuit board 6 disposed in the spectacle frame 1 or the temple 2, and the control circuit board 6 is communicatively connected to the bone oscillator module 3. The control circuit board 6 is composed of a wired communication module, an MCU module, a power amplifier module, an optical engine module, a charging module, a battery module, a button module, a touch module, an infrared sensing module, etc. The MCU module is communicatively connected to the wired communication module, the power amplifier module, the optical engine module, the charging module, the battery module, the button module, the touch module, the infrared sensing module, and the bone oscillator module 3, etc. And the wired communication module, the power amplifier module, the optical engine module, the charging module, the battery module, the button module, the touch module, the infrared sensing module, etc. are all mature devices purchased on the existing market and no specific protection requirements are made.

[0028] Please refer to Figures 1 to 4 , preferably, the cavity wall of the oscillator cavity 21 facing the other temple 2 is made of a flexible material 5, and the oscillator housing 32 is connected to the flexible material 5. It is convenient for the sound emitted from the front of the oscillator unit 31 to be directly transmitted to the human bone through the flexible material 5. Preferably, the flexible material 5 includes silicone-based materials, rubbers such as PU, TPU, EPDM, NBR, etc., but is not limited thereto.

[0029] Please refer to Figures 1 to 4 , preferably, the air vent 4 is opened on the flexible material 5. It is convenient to process the air vent 4 first and then assemble, reducing the processing difficulty. Of course, the air vent 4 can also be opened on the cavity wall of the oscillator cavity 21 in the temple 2 facing the human face and is not located on the flexible material 5.

[0030] Please refer to Figures 1 to 4 , preferably, the oscillator cavity 21 is dug from one side of the temple 2 facing the other temple 2 to the opposite side, and the flexible material 5 covers the side of the oscillator cavity 21 facing the other temple 2. It is convenient to install the bone oscillator module 3 into the oscillator cavity 21. The flexible material 5 can be connected to the temple 2 by ultrasonic welding or other means, the oscillator housing 32 can be fixed on the flexible material 5, and then the side of the flexible material 5 with the oscillator module can be facing the oscillator cavity 21 and installed to complete the encapsulation. Of course, the entire bone oscillator module 3 and the flexible material 5 can also be installed in a housing, and then the housing as a whole can be installed into the oscillator cavity 21, and only a channel for the sound phase propagation on the back of the bone oscillator module 3 needs to be left in the housing.

[0031] The working principle of the present utility model is as follows:

[0032] The bone oscillator module 3 is adopted to play back sound using the bone conduction scheme. The essence of bone conduction sound playback is that part of it uses the bone oscillator module 3 to closely adhere to the facial skin to transmit sound to the facial bones, and then the facial bones transmit it to the inner ear cochlea, so that the human ear perceives the sound. Another part is that the diaphragm of the bone oscillator module 3 vibrates to generate sound in the air, and the sound is conducted through the air to the cochlea and is perceived by humans. In order to reduce the sound conducted through the air, further design of the vent hole 4 is carried out using the flexible material 5 on the vibration bonding surface of the bone oscillator monomer 31, so that the sound phase on the back of the diaphragm of the bone oscillator monomer 31 diffracts through the gap of the oscillator cavity 21 and the vent hole 4 to the front sound phase for cancellation. In this way, the sound leakage is greatly reduced, personal privacy is protected, and the interference to the external environment is reduced; since the resonance frequency of the bone oscillator module 3 is lower than that of a conventional micro speaker, the bone oscillator module 3 is better than a conventional micro speaker in the effective frequency bandwidth of playback, and the sound quality is also improved to a high level. After the product is pressed the power-on button, it starts to work normally. The MCU module will transmit the sound information to the optical lens through the optical engine, and the background music is amplified by the power amplifier and then transmitted to the bone oscillator module 3. The bone oscillator monomer 31 will vibrate. The vibration sound phase that fits the front of the human face is 0 degrees, and on the contrary, the vibration sound phase on the back is 180°. Since there are openings on the surface of the soft material that seals the bone oscillator and the cavity, the sound waves generated inside will diffract to the front. The two sound phases are completely opposite, and the sound amplitude cancellation is close to 0, that is, there is no sound leakage.

[0033] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0034] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0035] Finally, the above description is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model.

[0036] It should be noted that for those of ordinary skill in the art in this technical field, several improvements and retouches made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. An intelligent glasses for reducing sound leakage, comprising a frame and temple arms, wherein the two sides of the frame are respectively installed with a temple arm, and a bone oscillator module is installed in at least one of the temple arms, characterized in that: An oscillator cavity is provided in the temple. The bone oscillator module is installed in the oscillator cavity. An air vent hole is provided in the cavity wall of the oscillator cavity facing the other temple. One end of the bone oscillator module facing away from the other temple is communicated with the air vent hole. The surface of the bone oscillator module facing the other temple is close to the cavity wall of the oscillator cavity close to the other temple. The air vent hole is arranged deviating from the area where the bone oscillator module is close to the cavity wall of the oscillator cavity.

2. The intelligent glasses for reducing sound leakage according to claim 1, wherein: The bone oscillator module includes an oscillator unit and an oscillator housing. The oscillator housing is connected to the cavity wall of the oscillator cavity close to the other temple. The oscillator unit is arranged in the oscillator housing. Sound holes are provided on the surface of the oscillator housing.

3. The intelligent glasses for reducing sound leakage according to claim 2, wherein: There is a gap between the oscillator housing and the cavity wall of the oscillator cavity facing away from the other temple, and there are gaps between the oscillator housing and the cavity walls on the front side and / or the rear side of the oscillator cavity along the axial direction of the temple.

4. The intelligent glasses for reducing sound leakage according to claim 3, characterized in that: A plurality of air vent holes are provided. The air vent holes are communicated with the gaps between the oscillator housing and the cavity walls on the front side or the rear side of the oscillator cavity along the axial direction of the temple.

5. The intelligent glasses for reducing sound leakage according to claim 2, wherein: The sound holes are provided on one side of the oscillator housing facing the other temple and on one side facing away from the other temple.

6. The intelligent glasses for reducing sound leakage according to claim 5, wherein: Hanging patterns are provided on one side of the oscillator housing facing the other temple and on one side facing away from the other temple. The hanging patterns connect and hold the oscillator unit. The sound holes are located between the hanging patterns.

7. The intelligent glasses for reducing sound leakage according to claim 1, characterized in that: It further includes a control circuit board arranged in the spectacle frame or the temple. The control circuit board is communicatively connected with the bone oscillator module.

8. The intelligent glasses for reducing sound leakage according to claim 2, wherein: The cavity wall of the oscillator cavity facing the other temple is made of a flexible material. The oscillator housing is connected to the flexible material.

9. The intelligent glasses for reducing sound leakage according to claim 8, characterized in that: The air vent hole is provided in the flexible material.

10. The intelligent glasses for reducing sound leakage according to claim 8, characterized in that: The oscillator cavity is dug from one side of the temple facing the other temple to the side facing away. The flexible material covers the side of the oscillator cavity facing the other temple.

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