Microphone pickup channel
By changing the positional relationship between the printed circuit board and the mounting plate and designing the coaxial pickup channel structure, the problem of excessively long channels caused by the increased thickness of the roof in the vehicle microphone module was solved, improving microphone performance and simplifying the debugging process.
Patent Information
- Application Number
- CN202423096312.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The microphone pickup channel of the vehicle-mounted microphone module is too long due to the increased thickness of the ceiling, which affects performance and makes debugging more difficult.
The printed circuit board and mounting plate were changed to be set vertically, and the microphone module's pickup channels were designed as a coaxial structure, including the first, second, and third pickup channels, and sealed with a layer of sealing foam.
The microphone pickup channel length was shortened, improving performance and reducing debugging difficulty.
Smart Images
Figure CN223772131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a microphone pickup channel. Background Technology
[0002] With the global economic slowdown and intensified competition in the passenger vehicle market, people are increasingly demanding new energy vehicles to reduce travel costs, leading to more and more functional requirements. Specifically, the performance requirements for in-vehicle microphone modules are becoming increasingly stringent. As a crucial medium for communication between people and vehicles, in-vehicle microphone modules are facing ever-higher demands for sensitivity and distortion reduction in sound recognition, resulting in increasingly stringent structural requirements for microphone modules (especially the length of the microphone pickup channel).
[0003] The existing technical problem is that the vehicle-mounted microphone module is placed inside the roof, and the thickness of the roof between it and the mask greatly increases the length of the pickup channel, which to some extent affects the performance of the microphone module and the difficulty of debugging. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a microphone pickup channel.
[0005] The purpose of this utility model is achieved through the following technical measures: a microphone pickup channel, including a mask, a slot extending from the mask, the slot being secured to a mounting plate, and a microphone module disposed within the slot, the microphone module extending out of the mounting plate, characterized in that: the microphone module includes an upper shell and a lower shell secured to the upper shell, a printed circuit board disposed between the upper shell and the lower shell, a microphone disposed on the printed circuit board, the microphone's pickup hole being concentrically aligned with the pickup hole of the printed circuit board; the printed circuit board is perpendicularly disposed to the mounting plate, and one end of the printed circuit board is located within the mounting plate, the microphone being disposed on the printed circuit board located within the mounting plate; the mask has a first pickup channel communicating with the outside, and the lower shell of the module has a second pickup channel communicating with the pickup hole of the printed circuit board.
[0006] As an improvement, a sealing layer is provided between the mask and the microphone module.
[0007] As a further improvement, the sealing layer is a sealing foam layer.
[0008] As a further improvement, the sealing layer is provided with a third sound pickup channel.
[0009] As a further improvement, one end of the second pickup channel is connected to one end of the third pickup channel, and the other end of the second pickup channel is connected to the pickup hole of the printed circuit board.
[0010] As a further improvement, the inner end of the first pickup channel is connected to the end of the third pickup channel that is away from the second pickup channel.
[0011] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are:
[0012] This invention, by changing the relative position of the printed circuit board and the mounting plate, allows the printed circuit board to be inserted into the mounting plate, shortening the pickup channel length and reducing the overall length and ceiling thickness, which greatly improves performance and reduces debugging difficulty.
[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0014] Appendix Figure 1 This is a three-dimensional structural diagram of the product of this utility model;
[0015] Appendix Figure 2 This is a schematic diagram of the assembly structure of this utility model;
[0016] Appendix Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0017] Appendix Figure 4 This is a cross-sectional view of the present invention;
[0018] Appendix Figure 5 It is attached Figure 4 Another perspective illustration;
[0019] Appendix Figure 6 This is a schematic diagram of the existing technology. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] Example 1: As shown in the attached document Figure 1 -Appendix Figure 5The diagram shows a microphone pickup channel, including a face mask 1. A slot 11 extends from the face mask 1 and is engaged with a mounting plate 2. The mounting plate 2 is typically a car roof panel, but can also be a panel from other mounting locations. A microphone module 3 is housed within the slot 11 and extends out of the mounting plate 2. The microphone module 3 includes an upper module shell 31 and a lower module shell 32 engaged with the upper module shell 31. A printed circuit board 5 is positioned between the upper module shell 31 and the lower module shell 32. A microphone 6 is mounted on the printed circuit board 5, with the pickup hole of the microphone 6 concentrically aligned with the pickup hole of the printed circuit board 5. The printed circuit board 5 is perpendicular to the mounting plate 2, with one end of the printed circuit board 5 located within the mounting plate 2. The microphone 6 is mounted on the printed circuit board 5 located within the mounting plate 2. The face mask 1 has a first pickup channel 7 communicating with the outside world, and the first pickup channel 7 is axially perpendicular to the pickup hole of the microphone 6. The lower housing 32 of the module is provided with a second pickup channel 8 that communicates with the pickup hole of the printed circuit board 5. A sealing layer 4 is provided between the mask 1 and the microphone module 3; the sealing layer 4 is a sealing foam layer; the sealing layer 4 is provided with a third pickup channel. One end of the second pickup channel 8 is connected to one end of the third pickup channel, and the other end of the second pickup channel 8 is connected to the pickup hole of the printed circuit board 5. The inner end of the first pickup channel 7 is connected to the end of the third pickup channel 9 away from the second pickup channel 8. The first pickup channel 7 and the third pickup channel 9 are arranged coaxially, and the second pickup channel 8 is the sum of a first segment 81 arranged coaxially with the first pickup channel 7 and a second segment 82 arranged perpendicularly to the axis of the first pickup channel 7.
[0025] The length of the microphone pickup channel is equal to the sum of the first pickup channel 7, the second pickup channel 8, and the third pickup channel 9.
[0026] This new invention improves the assembly direction of the microphone module 3 from the original parallel arrangement of the printed circuit board 5 to the vertical arrangement. This allows the printed circuit board 5 to be designed to be inserted into the mounting plate 2, reducing the thickness of the mounting plate 2 and thus shortening the length of the microphone pickup channel. This has a significant positive effect on improving performance and reducing debugging difficulty.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A microphone pickup channel, comprising a mask, a clamping groove is arranged on the mask, the clamping groove is clamped on a mounting plate, and a microphone module is arranged in the clamping groove, the microphone module extends out of the mounting plate, characterized in that: The microphone module comprises a module upper shell, a module lower shell clamped with the module upper shell, a printed circuit board arranged between the module upper shell and the module lower shell, a microphone arranged on the printed circuit board, and a sound pickup hole of the microphone concentrically aligned with a sound pickup hole of the printed circuit board; the printed circuit board is arranged perpendicularly to the mounting plate, one end of the printed circuit board is located in the mounting plate, and the microphone is arranged on the printed circuit board located in the mounting plate; the mask is provided with a first sound pickup channel in communication with the outside world, and the module lower shell is provided with a second sound pickup channel in communication with the sound pickup hole of the printed circuit board.
2. The microphone pickup channel according to claim 1, wherein: A sealing layer is arranged between the mask and the microphone module.
3. The microphone pickup channel according to claim 2, wherein: The sealing layer is a sealing foam layer.
4. The microphone pickup channel of claim 2, wherein: The sealing layer is provided with a third sound pickup channel.
5. The microphone pickup channel according to claim 4, wherein: One end of the second sound pickup channel is in communication with one end of the third sound pickup channel, and the other end of the second sound pickup channel is in communication with the sound pickup hole of the printed circuit board.
6. The microphone pickup channel according to claim 4, wherein: The inner end of the first sound pickup channel is in communication with the end of the third sound pickup channel away from the second sound pickup channel.