A microphone assembly assembly structure

Abstract

A microphone assembly assembly structure, including plastic shell and microphone assembly, the inner wall of the plastic shell is equipped with a recessed groove, the buffer material pad, the microphone assembly, the foamed silica gel are stacked into the recessed groove in sequence, and a pressing plate is further arranged on the foamed silica gel, the pressing plate abuts against the foamed silica gel, and the edge of the pressing plate is arranged on the top of the outer wall of the recessed groove and locked with the plastic shell by locking screws. The microphone assembly assembly structure is improved, the structure adopts a recessed structure to form an external half-wrapping structure, the microphone assembly is sunkly arranged in the structure, the foamed silica gel and the buffer material pad are used to compressively assemble and stably fix the microphone assembly, so that the influence of the vibration of other components on the microphone assembly during signal acquisition is greatly reduced, the noise interference during the amplification of the signal with large gain is avoided, the product quality is improved, and the use experience is improved.

Description

[Technical Field] This utility model relates to the technical field of microphone components for headphones, and more particularly to microphone component assembly structures. [Background Technology] Headphones are a common personal electronic product. With technological advancements and development, headphones have evolved from wired to wireless, from active to passive, and from RF pairing to Bluetooth pairing, resulting in a wide variety of types to suit the diverse uses and needs of consumers.

[0001] Due to the relatively high size requirements of existing headphones, everyday practical headphones tend to be made smaller and smaller, while the demand for sound quality is also increasing. This necessitates the separation of the sound-producing and microphone components to maintain relative independence and prevent interference. Furthermore, since the speaker in the headphones inevitably vibrates when emitting sound, this vibration is transmitted to the headphone's plastic shell, causing overall structural vibration or interfering with the microphone's operation. Both of these can lead to a poor user experience. To improve product quality and enhance the user experience, it is imperative to improve and optimize the microphone's assembly structure. [Summary of the Invention] This invention addresses the above-mentioned problems by proposing an improved microphone assembly structure for an earphone. The structure employs a recessed design to form an external semi-enclosed structure, into which the microphone assembly is recessed and fitted. Combined with foamed silicone and cushioning material pads, the microphone assembly is press-fitted and stably fixed, thereby significantly reducing the vibration impact of other components on the microphone assembly during signal acquisition. This avoids noise interference during high-gain amplification of the acquired signal, improving product quality and enhancing the user experience.

[0002] The present invention relates to a microphone assembly structure, comprising a plastic shell and a microphone assembly. The plastic shell has a recessed groove on its inner wall, into which a cushioning material pad, a microphone assembly, and foamed silicone are sequentially stacked and inserted. A pressure plate is also provided on the foamed silicone, pressing against the foamed silicone, and the edge of the pressure plate is pressed against the top of the outer wall of the recessed groove. The pressure plate and the plastic shell are locked by locking screws.

[0003] The microphone assembly includes a PFC board, a ribbon cable, and a connector, wherein the ribbon cable connects the PFC board and the connector.

[0004] The recessed groove has a bottom surface and four sides. The bottom surface is the shell of the plastic outer shell, and one of the four sides has a notch.

[0005] A speaker hole is provided in the center of the bottom surface, and an acoustic steel mesh is installed at the speaker hole.

[0006] The microphone assembly is fitted with its PFC board and part of the ribbon cable in a recessed groove, while the ribbon cable extends out of the recessed groove through a notch on the vertical surface of the recessed groove.

[0007] The size and shape of the cushioning material pad are the same as the bottom surface of the recessed groove. The cushioning material pad is a dense foam pad, and a through hole is opened at the position of the sound hole on the cushioning material pad.

[0008] The foamed silicone is a partially conical structure with internal grooves, where the internal grooves are the space for accommodating the PFC board of the microphone assembly. Its lower edge is pressed and adhered to the cushioning material pad, and presses the ribbon cable of the microphone assembly.

[0009] The pressure plate has multiple screw holes that fit the screw fixing positions on the plastic shell. When the pressure plate presses the foamed silicone into the recessed groove, the screw holes correspond one by one to the screw fixing positions, and the pressure plate and the plastic shell are locked together by the screws.

[0010] The microphone assembly structure involved in this utility model has been improved by adopting a recessed structure to form an external semi-enclosed structure, in which the microphone assembly is recessed and installed. With the help of foamed silicone and cushioning material pads, the microphone assembly is pressed and assembled, and stably fixed. This greatly reduces the impact of vibration from other components on the microphone assembly during signal acquisition, avoids noise interference when amplifying the acquired signal at high gain, improves product quality, and enhances the user experience. [Attached Image Description] Figure 1 This is a schematic diagram of the assembly structure of the microphone assembly involved in this utility model; Figure 2 is a schematic diagram of the assembly and disassembly structure of the microphone assembly involved in this utility model; Figure 3 This is a top-view structural diagram of the microphone assembly involved in this utility model; The components are as follows: 10. Plastic shell; 11. Screw fixing position; 20. Microphone assembly; 21. PFC board; 22. Ribbon cable; 23. Plug port; 30. Recessed groove; 31. Bottom surface; 311. Speaker hole; 312. Acoustic steel mesh; 32. Front surface; 33. Notch position; 40. Buffer material pad; 41. Through hole; 50. Foamed silicone; 51. Groove; 60. Pressure plate; 61. Screw hole; 70. Locking screw.

Detailed Implementation Methods

[0011] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0012] Please refer to the attached document. Figure 1 The image shows a microphone assembly structure, including a plastic housing 10 and a microphone assembly 20. The plastic housing 10 has a recessed groove 30 on its inner wall. A cushioning material pad 40, a microphone assembly 20, and a foamed silicone 50 are stacked and inserted into the recessed groove 30 in sequence. A pressure plate 60 is also provided on the foamed silicone 50. The pressure plate 60 presses against the foamed silicone 50, and the edge of the pressure plate 60 is pressed against the top of the outer wall of the recessed groove 30. The pressure plate 60 and the plastic housing 10 are locked by a locking screw 70.

[0013] The microphone assembly 20 includes a PFC board 21, a ribbon cable 22, and a connector 23, wherein the ribbon cable 22 connects the PFC board 21 and the connector 23. This whole constitutes the microphone assembly 20, which is placed in a recessed groove to isolate vibration.

[0014] The recessed groove 30 has a bottom surface 31 and four vertical surfaces 32. The bottom surface 31 is the shell of the plastic outer shell, and one of the four vertical surfaces 32 has a notch position 33.

[0015] A speaker hole 311 is provided in the center of the bottom surface 31, and an acoustic steel mesh 312 is provided at the speaker hole 311. The acoustic steel mesh 312 serves two purposes: to facilitate sound projection and to prevent external dust and impurities from entering the interior of the plastic shell 10 through the speaker hole.

[0016] The microphone assembly 20 is fitted into the recessed groove 30 with its PFC board 21 and part of the ribbon cable 22 pressed together, while the ribbon cable 22 extends out of the recessed groove 30 through the notch position 33 on the facade 32 of the recessed groove 30.

[0017] The size and shape of the cushioning material pad 40 are the same as the bottom surface 31 of the recessed groove 30. The cushioning material pad 40 is a dense foam pad. A through hole 41 is opened in the cushioning material pad 40 at the position corresponding to the speaker hole 311.

[0018] The foamed silicone 50 has a partially conical structure with an internal groove 51. The internal groove 51 serves as a space to accommodate the PFC plate 21 of the microphone assembly 20. Its lower edge is pressed tightly against the cushioning material pad 40 and presses down on the ribbon cable 22 of the microphone assembly 20. Only a tiny space is left to allow the ribbon cable to pass through; the rest is tightly pressed into the mounting recess 30 by the foamed silicone 50. That is, through the tight fit between the groove 51 of the foamed silicone 50 and the recess 30, and the pressing assembly, a good vibration isolation assembly structure is formed.

[0019] The pressure plate 60 has multiple screw holes 61 that fit the screw fixing positions 11 on the plastic shell 10. When the pressure plate 60 presses the foamed silicone 50 to fit into the recessed groove 30, the screw holes 61 correspond one-to-one with the screw fixing positions 11, and the pressure plate 60 and the plastic shell 10 are locked by screws 70.

[0020] The microphone assembly structure involved in this utility model has been improved by adopting a recessed structure to form an external semi-enclosed structure, in which the microphone assembly is recessed and installed. With the help of foamed silicone and cushioning material pads, the microphone assembly is pressed and assembled, and stably fixed. This greatly reduces the impact of vibration from other components on the microphone assembly during signal acquisition, avoids noise interference when amplifying the acquired signal at high gain, improves product quality, and enhances the user experience.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A microphone assembly structure, comprising a plastic housing and a microphone assembly, characterized in that, The inner wall of the plastic shell is provided with a recessed groove. The cushioning material pad, microphone assembly, and foamed silicone are stacked and installed into the recessed groove in sequence. A pressure plate is also provided on the foamed silicone. The pressure plate presses against the foamed silicone, and the edge of the pressure plate presses against the top of the outer wall of the recessed groove. The pressure plate and the plastic shell are locked by locking screws.

2. The microphone assembly structure according to claim 1, characterized in that, The microphone assembly includes a PFC board, a ribbon cable, and a connector, wherein the ribbon cable connects the PFC board and the connector.

3. The microphone assembly structure according to claim 2, characterized in that, The recessed groove has a bottom surface and four sides. The bottom surface is the shell of the plastic outer shell, and one of the four sides has a notch.

4. The microphone assembly structure according to claim 3, characterized in that, A speaker hole is provided in the center of the bottom surface, and an acoustic steel mesh is installed at the speaker hole.

5. The microphone assembly structure according to claim 3, characterized in that, The microphone assembly is fitted with its PFC board and part of the ribbon cable in a recessed groove, while the ribbon cable extends out of the recessed groove through a notch on the vertical surface of the recessed groove.

6. The microphone assembly structure according to claim 5, characterized in that, The size and shape of the cushioning material pad are the same as the bottom surface of the recessed groove. The cushioning material pad is a dense foam pad, and a through hole is opened at the position of the sound hole on the cushioning material pad.

7. The microphone assembly structure according to claim 2, characterized in that, The foamed silicone is a partially conical structure with internal grooves, where the internal grooves are the space for accommodating the PFC board of the microphone assembly. Its lower edge is pressed and adhered to the cushioning material pad, and presses the ribbon cable of the microphone assembly.

8. The microphone assembly structure according to any one of claims 1-7, characterized in that, The pressure plate has multiple screw holes that fit the screw fixing positions on the plastic shell. When the pressure plate presses the foamed silicone into the recessed groove, the screw holes correspond one by one to the screw fixing positions, and the pressure plate and the plastic shell are locked together by the screws.

Images