Pickup assembly of smart glasses

Abstract

A pickup assembly of smart glasses. The smart glasses comprise a frame (1) provided with a front frame (11) and a rear frame (12); the pickup assembly comprises pickup hole channels (21), microphones (22), a flexible circuit board (23), and an audio processing module (24); the pickup hole channels (21) extend backwards from a front surface (111) of the front frame (11) and then extend upwards to an upper surface (112) of the front frame (11); and the microphones (22) are arranged on the upper surface (112) of the front frame (11) and correspondingly connected to the pickup hole channels (21). On the basis of the structure of the pickup hole channels (21), the use of a small number of microphones (22) can achieve a good pickup effect, and the weight is reduced.

Description

A sound pickup component for smart glasses

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 11, 2023, with application number 202322458373.0, and invention name “A sound pickup component for smart glasses”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of smart wearable devices, and in particular relates to a sound pickup component of smart glasses. Background Art

[0003] Smart wearable devices are a general term for wearable devices that use wearable technology to intelligently design everyday wearables, such as watches, bracelets, glasses, clothing, etc. Smart glasses are a widely used smart wearable device.

[0004] With the development of voice recognition technology, more and more smart glasses devices use voice control methods to realize system control. In existing smart glasses, a single microphone or a multi-microphone array is usually used to pick up sound signals for recognition. In order to better collect near-field or far-field sounds, the existing technology sets a multi-microphone array on the temples or front frames of the whole device to pick up sounds. A large number of microphones will not only increase the overall weight of the smart glasses, but the densely arranged microphone array will also have some adverse effects on the sound pickup effect, such as howling or harmonic interference. When there is only one microphone, although the overall weight of the glasses can be reduced, its sound pickup effect needs to be improved.

[0005] Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of this application is to provide a sound pickup component for smart glasses that has good sound pickup effect and is lightweight.

[0007] In order to solve the above problems, the present application provides a sound pickup component of smart glasses, which includes a frame with a front frame and a rear frame, and is characterized in that the sound pickup component includes a sound pickup hole, a microphone, a flexible circuit board and an audio processing module; the sound pickup hole extends backward from the front surface of the front frame and then extends upward to the upper surface of the front frame, the microphone is arranged on the upper surface of the front frame and is correspondingly connected to the sound pickup hole, the flexible circuit board is attached to the upper surface of the front frame, and the flexible circuit board electrically connects the microphone to the audio processing module; the rear frame is plugged into the front frame and covers the microphone, the flexible circuit board and the audio processing module.

[0008] The present application provides a sound pickup component for smart glasses, wherein a sound pickup channel extends backward from the front surface of the front frame of the glasses and then extends upward to the upper surface of the front frame. The sound pickup opening of the sound pickup channel is opened perpendicular to the front surface of the front frame, so that the sound pickup component has better sound pickup directionality. The other end of the sound pickup channel is bent and extended so that the microphone is connected to the sound pickup channel on the upper surface of the front frame. No additional structural parts are required to support the microphone, making the assembly structure of the sound pickup component in the glasses more compact. A good sound pickup effect can be achieved by using a smaller number of microphones in the sound pickup component, which is conducive to reducing the overall weight of the smart glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG1 is a schematic diagram of the front structure of the smart glasses of the present application;

[0010] FIG2 is a schematic diagram of the back structure of the smart glasses of the present application;

[0011] Figures 3 and 4 are exploded views of the smart glasses and the sound pickup assembly of the present application from different perspectives;

[0012] FIG5 is a schematic diagram of a partial structure of the front frame of the smart glasses in FIG3 ;

[0013] FIG6 is a schematic diagram of a partial structure of the front frame of the smart glasses in FIG4 ;

[0014] FIG. 7 is a schematic diagram of a partial structure of the flexible circuit board in FIG. 4 . DETAILED DESCRIPTION

[0015] To make the objectives, technical solutions, and advantages of this application more apparent, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of this application shown in and described with reference to the accompanying drawings are merely exemplary, and this application is not limited to these embodiments.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0017] It should be noted that when a component is referred to as being “disposed on” another component, it can be directly on the other component or indirectly on the other component.

[0018] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] It should also be noted here that in order to avoid obscuring the present application due to unnecessary details, the accompanying drawings only show structures and / or processing steps that are closely related to the scheme according to the present application, while other details that are not closely related to the present application are omitted.

[0020] The present invention provides a sound pickup assembly for smart glasses. Figures 1 and 2 are schematic diagrams of the front and back structures of the smart glasses, respectively, including the sound pickup assembly, according to the present invention. Referring to Figures 1 and 2, the smart glasses include a frame 1 comprising a front frame 11 and a rear frame 12 that are pluggably coupled to each other.

[0021] Figures 3 and 4 are exploded views of the smart glasses and the sound pickup assembly provided by the embodiment of the present application from different perspectives, and Figures 5 and 6 are schematic diagrams of the partial structure of the front frame of the smart glasses in Figures 3 and 4, respectively. Referring to Figures 1 to 6, the sound pickup assembly of the smart glasses provided by the embodiment of the present application mainly includes a sound pickup channel 21, a microphone 22, a flexible circuit board 23, and an audio processing module 24. The sound pickup channel 21 extends backward from the front surface 111 of the front frame 11 and then extends upward to the upper surface 112 of the front frame 11. The microphone 22 is disposed on the upper surface 112 of the front frame 11 and is correspondingly connected to the sound pickup channel 21. The flexible circuit board 23 is attached to the upper surface 112 of the front frame 11 and electrically connects the microphone 22 to the audio processing module 24. The rear frame 12 is plugged into the front frame 11 and covers the microphone 22, the flexible circuit board 23, and the audio processing module 24.

[0022] As described above, the sound pickup assembly, wherein the sound pickup channel 21 extends backward from the front surface 111 of the front frame 11 and then extends upward to the upper surface 112 of the front frame 11. The sound pickup opening of the sound pickup channel 21 is opened perpendicular to the front surface 111 of the front frame 11, so that the sound pickup assembly has better sound pickup directionality. The other end of the sound pickup channel 21 is bent and extended so that the microphone 22 is connected to the sound pickup channel 21 on the upper surface 112 of the front frame 11. No additional structural parts are required to support the microphone 22, so that the assembly structure of the sound pickup assembly in the glasses is more compact. A smaller number of microphones (for example, 1 or 2) can be used in the sound pickup assembly to achieve a good sound pickup effect, which is beneficial to reducing the overall weight of the smart glasses.

[0023] In this embodiment, as shown in Figures 3 and 4, the sound pickup assembly includes two sound pickup holes 21, which are symmetrically arranged at the left and right ends of the front frame 11. On the upper surface 112 of the front frame 11, each sound pickup hole 21 is connected to a microphone 22, and the flexible circuit board 23 electrically connects the two microphones 22 to each other and then connects them to the audio processing module 24.

[0024] The sound pickup assembly described above has two symmetrical sound pickup channels 21 disposed on the left and right ends of the front frame 11 of the smart glasses, and two microphones 22 are connected to the corresponding channels. This forms a symmetrically arranged dual-microphone array sound pickup assembly, which can make the overall weight distribution of the smart glasses more balanced and improve the user's wearing experience. In addition, the two microphones 22 in the dual-microphone array sound pickup assembly can be arranged farther apart, and the sound pickup difference between the two microphones 22 is large. The sound pickup difference can be used to achieve sound localization in different directions and obtain better noise reduction effects, thereby achieving good sound pickup effects.

[0025] Specifically, in order to maintain the voice recognition technology of the smart glasses, the microphone 22 is a small microphone with a chip dedicated to the field of smart glasses technology. The selected microphone is provided with a sound inlet, which is connected to the sound pickup channel 21 and can collect sound well.

[0026] In order to maintain the sound pickup effect of the smart glasses, in some embodiments, the distance between the two sound pickup holes 21 on the front frame 11 is 100 mm to 160 mm, and the diameter of the sound pickup holes 21 is 0.6 mm to 3 mm.

[0027] Specifically, for example, in this embodiment, the distance between the two sound pickup holes 21 on the front frame 11 is 120 mm and the diameter of the two sound pickup holes 21 is 1.5 mm. In some other embodiments, the configuration is made according to the sound pickup effect required by the smart glasses and the size of the smart glasses themselves.

[0028] FIG7 is a schematic diagram of a partial structure of the flexible circuit board in FIG4 . Referring to FIG4 and FIG7 , in this embodiment, the flexible circuit board 23 has a shape corresponding to the upper surface 112 of the front frame 11 . The flexible circuit board 23 is attached to the upper surface 112 of the front frame 11 and has a through hole 231 formed at a position corresponding to the sound pickup channel 21 . The microphone 22 is connected to the flexible circuit board 23 and communicates with the corresponding sound pickup channel 21 through the through hole 231 .

[0029] Specifically, the flexible circuit board 23 is inserted into the upper surface 112 of the front frame 11, and the rear frame 12 is then inserted into the front frame 11, with the flexible circuit board 23 positioned in the space between the rear frame 12 and the front frame 11. When the flexible circuit board 23 is inserted into the upper surface 112 of the front frame 11, the through hole 231 on the flexible circuit board 23 is aligned with the end of the sound pickup channel 21 on the upper surface 112 of the front frame 11. The microphone 22 is then placed on the flexible circuit board 23, with the sound inlet of the microphone 22 aligned with the through hole 231 of the flexible circuit board 23.

[0030] In this embodiment, referring to Figure 4, the edge of the upper surface 112 of the front frame 11 has an upwardly extending raised enclosure 113, and the raised enclosure 113 and the upper surface 112 of the front frame 11 surround and form a mounting groove 13. The rear frame 12 is connected to the mounting groove 13 and a space for accommodating the microphone 22, the flexible circuit board 23 and the audio processing module 24 is formed between the rear frame 12 and the front frame 11.

[0031] Specifically, in this embodiment, referring to Figure 4, the two ends of the flexible circuit board 23 are inserted into the two ends of the front frame 11, so that the front frame 11 can be tightly attached to the mounting groove 13 formed by the raised enclosure 113 and the upper surface 112 of the front frame 11, and the two ends of the flexible circuit board 23 are connected to the audio processing module 24. The audio processing module 24 is located in the space between the two ends of the rear frame 12 and the two ends of the front frame 11. The rear frame 12 and the flexible circuit board 23 are tightened to the front frame 11 by the screws 17 on the nose pad 16, so that the front frame 11, the flexible circuit board 23 and the rear frame 12 are fastened together in sequence.

[0032] In this embodiment, referring to FIG. 3 and FIG. 5 , an assembly groove 14 is provided on the front surface 111 of the front frame 11 corresponding to the end of the sound pickup channel 21 , and a decorative member 15 is assembled in the assembly groove 14 to cover the end of the sound pickup channel 21 .

[0033] Specifically, to ensure that the dual-microphone array sound pickup holes on the front frame 11 can better maintain the aesthetics of the smart glasses themselves, an assembly slot 14 is provided in the sound pickup channel 21 at the corresponding position on the front frame 11. The assembly slot 14 is covered by a decorative piece 15, thereby obscuring the end of the sound pickup channel 21. Only the decorative piece 15 on the smart glasses can be seen from the outside, simultaneously satisfying the decorative properties and sound pickup function properties of the glasses. In order to make the sound pickup channel 21 more naturally integrated with the decorative piece 15 of the smart glasses and not produce a sense of disobedience, the distance between the two sound pickup channels 21 is between 100mm and 160mm, and they must be kept level and at the same height.

[0034] For example, in this embodiment, referring to Figures 3 and 5, a raised edge 114 is formed on the front surface 111 of the front frame 11 to surround the assembly groove 14. The side surface of the edge 114 forms a smoothly transitioned curved surface with the front surface 111 of the front frame 11. After the decorative member 15 is assembled in the assembly groove 14, its surface is flush with the height of the edge 114.

[0035] In some embodiments, for example, in this embodiment, the height of the surrounding edge 114 protruding from the front surface 111 of the front frame 11 is no more than 1.5 mm.

[0036] In some other embodiments, a countersunk hole is formed on the front surface 111 of the front frame 11 to form the assembly groove 14. After the decorative member 15 is assembled in the assembly groove 14, its surface is flush with the front surface 111 of the front frame 11. In some other embodiments, the depth of the countersunk hole is no more than 1.5 mm.

[0037] To sum up, the sound pickup component of the smart glasses provided in the embodiment of the present application has a sound pickup channel extending backward from the front surface of the front frame of the glasses and then upward to the upper surface of the front frame. Based on the structure of the specially designed sound pickup channel, a small number of microphones can be used to achieve a good sound pickup effect, which is also beneficial to reduce the overall weight of the smart glasses.

[0038] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A sound pickup component of smart glasses, the smart glasses comprising a frame with a front frame and a rear frame, the sound pickup component comprising a sound pickup hole, a microphone, a flexible circuit board and an audio processing module; the sound pickup hole extends backward from the front surface of the front frame and then extends upward to the upper surface of the front frame, the microphone is arranged on the upper surface of the front frame and is correspondingly connected to the sound pickup hole, the flexible circuit board is attached to the upper surface of the front frame, and the flexible circuit board electrically connects the microphone to the audio processing module; the rear frame is plugged and combined with the front frame and covers the microphone, the flexible circuit board and the audio processing module.

2. The pickup assembly according to claim 1, wherein: The sound pickup assembly comprises two sound pickup holes, which are symmetrically arranged at the left and right ends of the front frame; on the upper surface of the front frame, each of the sound pickup holes is connected to a microphone.

3. The pickup assembly according to claim 2, wherein: The distance between the two sound pickup holes on the front frame is 100 mm to 160 mm.

4. The pickup assembly according to claim 3, wherein: The distance between the two sound pickup holes on the front frame is 120 mm.

5. The pickup assembly according to claim 3, wherein: The diameter of the two sound pickup holes is 1.5 mm.

6. The pickup assembly according to claim 1, wherein: The diameter of the sound pickup hole is 0.6 mm to 3 mm.

7. The pickup assembly according to claim 1, wherein: The flexible circuit board has a shape corresponding to the upper surface of the front frame. The flexible circuit board is attached to the upper surface of the front frame and has a through hole at a position corresponding to the sound pickup channel. The microphone is connected to the flexible circuit board and connected to the sound pickup channel through the through hole.

8. The pickup assembly according to claim 1, wherein: The edge of the upper surface of the front frame has a raised enclosure extending upward, and the raised enclosure and the upper surface of the front frame surround a mounting groove, the rear frame is connected to the mounting groove, and a space for accommodating the microphone, the flexible circuit board and the audio processing module is formed between the rear frame and the front frame.

9. The pickup assembly according to claim 1, wherein: An assembly groove is provided on the front surface of the front frame corresponding to the end of the sound pickup channel, and a decorative piece is installed in the assembly groove to cover the end of the sound pickup channel.

10. The pickup assembly according to claim 9, wherein: A raised edge is formed on the front surface of the front frame to surround the assembly groove, and the side surface of the edge forms a smoothly transitioned curved surface with the front surface of the front frame. After the decorative element is assembled in the assembly groove, its surface is flush with the height of the edge. Alternatively, a countersunk hole is opened on the front surface of the front frame to form the assembly groove, and after the decorative element is assembled in the assembly groove, its surface is flush with the front surface of the front frame.

11. The pickup assembly according to claim 10, wherein: The height of the surrounding edge protruding from the front surface of the front frame is no more than 1.5 mm; the depth of the countersunk hole is no more than 1.5 mm.

12. The pickup assembly according to claim 1, wherein: The microphone is provided with a sound inlet hole, and the sound inlet hole is communicated with the sound pickup channel.

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