A built-in speaker microphone

Abstract

This utility model discloses a built-in speaker microphone, including a housing. The housing houses a pickup module, a control module, and a sound-generating module. The control module is electrically connected to the pickup module and the sound-generating module at both ends. The pickup module includes a microphone head and a microphone head mounting bracket. The microphone head mounting bracket includes a fixing part connected to the microphone head. Connecting parts are provided on both sides of the fixing part. One end of each connecting part is connected to the fixing part, and the other end is bent and connected to the control module. This utility model, by changing the material and structure of the microphone head silicone bracket, uses a vibration-reducing silicone material and a tortuous (U-shaped) physical structure to absorb vibration, thus reducing the possibility of high-frequency and low-frequency feedback, resulting in a better user experience for the built-in speaker microphone.

Description

Technical Field

[0001] This utility model relates to the technical field of microphones, and more particularly to a built-in audio microphone. Background Technology

[0002] A microphone is a transducer that converts sound signals into electrical signals. Its core function is to sense sound wave vibrations through physical structure and to achieve sound-to-electric conversion using principles such as electromagnetic induction or capacitance changes. It is commonly used in stage performances, speeches, and live broadcasts.

[0003] Currently, common external speaker microphones use a microphone as the input device, responsible for converting sound signals into electrical signals, and an external speaker as the output device, responsible for converting electrical signals back into sound signals and amplifying them to the external speaker. The core difference between the two is that external speaker microphones use exposed external speakers for amplification, resulting in a bulky and cumbersome appearance. In contrast, this built-in speaker microphone uses a miniature loudspeaker built into the handle to achieve amplification output from a built-in speaker, achieving a fully practical and real-time sound amplification effect without changing the microphone's slim and beautiful appearance.

[0004] The built-in microphone integrates the microphone and speaker, improving space efficiency and integration, and effectively reducing noise and enhancing sound quality. However, one of the challenges of implementing a built-in microphone is that the microphone and speaker are relatively close together, which can easily cause high-frequency and low-frequency vibration feedback, thus affecting the user experience. Utility Model Content

[0005] This invention provides a built-in audio microphone to solve the technical problem that the proximity of the microphone and speaker can easily cause high-frequency and low-frequency vibration and howling.

[0006] This utility model provides a built-in audio microphone, including a housing. The housing contains a pickup module, a control module, and a sound-generating module. The two ends of the control module are electrically connected to the pickup module and the sound-generating module, respectively. The pickup module includes a microphone head and a microphone head fixing bracket. The microphone head fixing bracket includes a fixing part connected to the microphone head. Both sides of the fixing part are provided with connecting parts. One end of the connecting part is connected to the fixing part, and the other end is bent and connected to the control module.

[0007] Furthermore, the microphone mounting bracket is made of silicone or rubber.

[0008] Furthermore, the sound-generating module includes a first horn and a low-frequency reflection vibration device. The low-frequency reflection vibration device includes a horn cavity support, a silicone diaphragm placed on the horn cavity support, a silicone diaphragm fixing ring, and a vibration counterweight block provided at the center of the silicone diaphragm. The silicone diaphragm is disposed inside the silicone diaphragm fixing ring. Both ends of the horn cavity support are respectively connected to the first horn and the silicone diaphragm fixing ring. The end of the silicone diaphragm fixing ring away from the horn cavity support is connected to the control module.

[0009] Furthermore, the speaker cavity support is made of plastic, the silicone diaphragm fixing ring is made of plastic, the silicone diaphragm is made of silicone, and the vibration counterweight at the center of the silicone diaphragm is made of iron.

[0010] Furthermore, the control module is connected to a second speaker upon power-up.

[0011] Furthermore, the first speaker is a miniature loudspeaker, and / or the second speaker is a miniature tuner speaker.

[0012] Furthermore, the housing includes a mesh head, a handle, and a tail cap. The two ends of the handle are detachably connected to the mesh head and the tail cap, respectively. The sound pickup module is located inside the mesh head, and the control module and the sound generation module are located inside the handle.

[0013] Furthermore, the inner wall of the handle is provided with a limiting groove along its axial direction to cooperate with the control module, and the control module is slidably engaged in the limiting groove.

[0014] Furthermore, one end of the tail cover is provided with a horn fixing ring, the end of the sound-generating module away from the control module is connected to the horn fixing ring, and the other end of the tail cover is detachably connected to the handle.

[0015] Furthermore, the control module includes a circuit board electrically connected to the pickup module and the sound-generating module, and also includes buttons, a display screen, a battery, a charging interface, a memory card slot and / or a wireless communication device disposed on the circuit board.

[0016] The beneficial effects of the utility model are:

[0017] 1. The built-in speaker microphone of this utility model changes the material and structure of the silicone bracket of the microphone head, uses silicone material that can reduce vibration and a tortuous (U-shaped) physical structure to absorb vibration, thereby reducing the possibility of high-frequency and low-frequency vibration howling and making the user experience of the built-in speaker microphone better.

[0018] 2. By using the handle as the sound-producing cavity of the miniature megaphone, not only is the sound-producing device hidden, making it more convenient to use, but also a low-frequency reflection vibration device made of plastic, silicone and counterweight iron is installed on the opposite side of the miniature megaphone. This device, together with the sound-producing cavity, increases the sound-producing efficiency of the miniature megaphone several times and greatly enhances the bass performance of the miniature megaphone.

[0019] 3. By setting up a miniature tuning speaker, the sound performance of the miniature megaphone can be made more perfect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the pickup module, control module, and sound generation module of this utility model.

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0022] Figure 3 This is an exploded view of the built-in audio microphone of this utility model.

[0023] Figure 4 This is a schematic diagram of the handle of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Moreover, the features in the embodiments of the present invention can be combined with each other without conflict.

[0025] like Figures 1-4 As shown, this utility model provides a built-in audio microphone, including a housing. The housing contains a pickup module 2, a control module 3, and a sound-generating module 4. The two ends of the control module 3 are electrically connected to the pickup module 2 and the sound-generating module 4, respectively. The pickup module 2 includes a microphone 21 and a microphone fixing bracket 22. The microphone fixing bracket 22 includes a fixing part 221 connected to the microphone 21. Both sides of the fixing part 221 are provided with connecting parts 222. One end of the connecting part 222 is connected to the fixing part 221, and the other end is bent and connected to the control module 3.

[0026] In one specific embodiment, the housing includes a mesh head 11, a handle 12, and a tail cap 13. Considering the typical use of a built-in microphone, the housing structure, from top to bottom, consists of the mesh head 11, handle 12, and tail cap 13. Specifically, the mesh head 11 is connected to the upper end of the handle 12, and the tail cap 13 is connected to the lower end of the handle 12. Both the mesh head 11 and the tail cap 13 are detachably connected to the handle 12. The connection method can be threaded, snap-fit, or plug-in, etc., to facilitate disassembly of the housing for maintenance of the built-in microphone.

[0027] The microphone module 2 is used to collect sound and convert the sound signal into an electrical signal. The microphone module 2 is located inside the mesh head 11, which is a mesh cover to protect the microphone module 2. The microphone 21 of the microphone module 2 is fixedly connected to the upper end of the control module 3 through the microphone fixing bracket 22. When the user emits sound into the mesh head 11, the microphone 21 can collect the sound through the mesh on the mesh head 11.

[0028] The control module 3 is used to process and transmit electrical signals. The handle 12 is a tube, and the control module 3 is located inside the upper part of the hollow handle 12. The control module 3 includes a circuit board 31, which is vertically installed inside the handle 12. The upper end of the circuit board 31 protrudes from the handle 12 and is fixedly connected to the microphone fixing bracket 22, while the lower end is fixedly connected to the sound generation module 4.

[0029] The sound-generating module 4 is used to convert electrical signals into sound signals and play sound. The sound-generating module 4 is located at the lower end of the hollow handle 12 and is hidden inside the handle 12. The upper end of the sound-generating module 4 is fixedly connected to the lower end of the circuit board 31, and the lower end is connected to the tail cover 13, which can fix the sound-generating module 4. A sound outlet 131 is provided at the bottom of the tail cover 13, through which the sound transmitted to the sound-generating module 4 can be played out.

[0030] Based on the above technical solution, the sound pickup module 2, the control module 3, and the sound generation module 4 form a complete audio processing system within the housing, realizing the acquisition, processing, and playback of sound.

[0031] Furthermore, the fixing part 221 of the microphone mounting bracket 22 matches the microphone 21, and the microphone 21 is fixed inside the fixing part 221. The fixing part 221 is fixedly connected to the connecting part 222 on both sides. The connecting part 222 extends from both sides of the fixing part 221, and after two right-angle bends, faces the circuit board 31, and has a circuit board mounting hole 2221. The top corner of the circuit board 31 has a pin 311 that is inserted into the circuit board mounting hole 2221 to fix the microphone mounting bracket 22 onto the circuit board 31. The bending can reduce vibration by enhancing damping energy dissipation and frequency control. The bending angle is not limited to a right angle and needs to be optimized in conjunction with material elasticity and geometric parameters. Therefore, this invention, by changing the structure of the microphone mounting bracket 22, uses a tortuous (loop-shaped) physical structure that can reduce vibration to absorb vibration, thus reducing the possibility of high-frequency and low-frequency vibration howling, and improving the user experience of the built-in speaker microphone.

[0032] In one specific embodiment, the microphone mounting bracket 22 is made of vibration-damping silicone, which can absorb broadband vibrations through the elastic deformation of its polymer chains. Therefore, this invention further reduces the likelihood of high-frequency and low-frequency feedback by using silicone, a material that reduces vibration, thus improving the user experience of the built-in microphone. While silicone is used as the vibration-damping material in this embodiment, other embodiments may use materials with vibration-damping effects, such as rubber.

[0033] In one specific embodiment, a sound-generating cavity 121 is provided in the lower end of the handle 12. The sound-generating module 4 is located exactly inside the sound-generating cavity 121 in the lower end of the handle 12. The sound-generating cavity 121 houses the sound-generating module 4 and provides conditions for improving sound quality. The sound-generating module 4 includes a first speaker 41 and a low-frequency reflection vibration device 42. The first speaker 41 is located in the lower end of the sound-generating cavity 121, and the low-frequency reflection vibration device 42 is located in the upper end of the sound-generating cavity 121. The low-frequency reflection vibration device 42 includes a speaker cavity support 421, a silicone diaphragm fixing ring 422, and a silicone diaphragm 423, as well as a vibration counterweight (not shown in the figure) bonded to the center of the silicone diaphragm 423. Both ends of the speaker cavity support 421 are fixed rings 4211. Three connecting blocks 4212 are integrally formed between the two fixed rings 4211. The connecting blocks 4212 extend along the axial direction of the fixed rings 4211, and the two ends of the three connecting blocks 4212 are respectively fixedly connected to the edges of the two fixed rings 4211. The upper fixing ring 4211 of the speaker cavity bracket 421 forms a groove for placing the silicone diaphragm 423, and is fitted onto the silicone diaphragm fixing ring 422 that is fixed to the silicone diaphragm 423. The lower fixing ring 4211 of the speaker cavity bracket 421 is fitted onto the first speaker 41. The silicone diaphragm fixing ring 422 has a circuit board mounting slot 4221 at the end away from the speaker cavity bracket 421 for the pins 311 of the circuit board 31 to be inserted, thereby realizing the connection between the sound-generating module 4 and the control module 3. The first speaker 41, the low-frequency reflection vibration device 42, and the sound-generating cavity 121 formed by the sealed space between the two, which is formed by the inner cavity of the handle 12 tube, constitute the core sound-generating module, which is hidden inside the handle 12 of the audio microphone, forming the complete structure of the sound-generating module 4. This realizes that a microphone with a built-in speaker is hidden inside the handle 12 of the audio microphone.

[0034] In one specific embodiment, the first speaker 41 is an existing miniature megaphone, which is a speaker that can emit several times the sound of a regular speaker while having the same speaker size. The miniature megaphone uses magnetic materials larger than those used in a regular speaker of the same size, and also uses a glass fiber diaphragm. It can not only withstand several times the vibration pressure of a paper diaphragm speaker, but also makes the emitted sound more penetrating and detailed.

[0035] In one specific embodiment, the speaker cavity support 421 is made of plastic, the silicone diaphragm fixing ring 422 is made of plastic, the silicone diaphragm 423 is made of silicone, and the vibration counterweight is made of iron.

[0036] Based on the above technical solution, by using the handle 12 as the sound-emitting cavity 121 of the miniature loudspeaker, not only is the sound-emitting device hidden, but also a low-frequency reflection vibration device 42 made of plastic material, silicone material and counterweight iron is installed on the opposite side of the miniature loudspeaker. This device, together with the sound-emitting cavity 121, increases the sound-emitting efficiency of the miniature loudspeaker by several times and greatly enhances the bass performance of the miniature loudspeaker.

[0037] In one specific embodiment, to further enhance the sound of the built-in microphone, a second speaker 5, electrically connected to the circuit board 31, is added below the microphone 21 on the circuit board 31. Preferably, the second speaker 5 is an existing miniature tuner speaker. By incorporating the miniature tuner speaker, the sound performance of the miniature loudspeaker is made more perfect.

[0038] In practical applications, the first speaker 41 can be a miniature loudspeaker, and the second speaker 5 can be a miniature tuner speaker. In short, the types of the first speaker 41 and the second speaker 5 can be adjusted according to the actual situation. They can be any type of speaker on the market, and are not limited to miniature loudspeakers and miniature tuner speakers.

[0039] In one specific embodiment, to ensure the circuit board 31 is securely fixed within the handle 12, limiting grooves 122 that mate with the circuit board 31 are provided on opposite sides of the upper inner wall of the handle 12. The limiting grooves 122 extend axially along the handle 12. The two edges of the circuit board 31 correspond to the two limiting grooves 122, and the edges of the circuit board 31 slide and engage with the limiting grooves 122. When the circuit board 31 is inserted into or removed from the handle 12, the edges of the circuit board 31 can slide along the limiting grooves 122 within the limiting grooves, ensuring the stability of the internal structure of the handle 12. After the circuit board 31 is installed within the handle 12, the limiting grooves 122 restrict the movement of the circuit board 31, thereby securely fixing the circuit board 31 within the handle 12.

[0040] In one specific embodiment, in addition to fixing the circuit board 31 via the limiting groove 122, the first speaker 41 is also fixed via the tail cover 13 to secure the entire audio processing system. The tail cover 13 includes a speaker fixing ring 132 located at the upper end that mates with the first speaker 41, and the lower end of the first speaker 41 is embedded in the speaker fixing ring 132. Preferably, the inner wall of the tail cover 13 is provided with a fastener 133 for fastening the first speaker 41. The fastener 133 is an inclined surface that slopes inward from top to bottom. As the first speaker 41 is continuously inserted, the inclined surface will compress the first speaker 41, thereby achieving the purpose of fastening the first speaker 41. The lower end of the tail cover 13 is provided with a thread 134, through which the tail cover 13 is threadedly connected to the handle 12. Based on the above technical solution, the entire audio processing system is well fixed within the housing. In this embodiment, the fastener 1 33 is a bevel. In other embodiments, the fastener 1 33 can also be other structures, such as buckles, and is not limited to bevels. In principle, as long as it can play a fastening role, it is acceptable. This will not be elaborated further here.

[0041] In one specific embodiment, the control module 3 further includes one or more of the following components electrically connected to the circuit board 31: a button 32, a display screen 33, a battery 34, a charging interface 35, a memory card slot 36, and a wireless communication device (not shown in the figure). The handle 12 has corresponding holes at positions corresponding to the above structures for user operation or use. Specifically, the button 32 can control the power on / off of the built-in speaker microphone or adjust the volume; the display screen 33 is used to visually present device status parameters; the battery 34 provides a rechargeable DC power supply; the charging interface 35 supports charging the built-in speaker microphone; the memory card slot 36 supports hot-swapping of external storage media, enabling physical reading and writing of audio data and file system management; and the wireless communication device enables the use of Bluetooth, WIFI, and UHF wireless technologies to connect with external audio input or output devices.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A built-in audio microphone, characterized in that: The device includes a housing, within which a pickup module, a control module, and a sound-generating module are provided. The two ends of the control module are electrically connected to the pickup module and the sound-generating module, respectively. The pickup module includes a microphone and a microphone mounting bracket. The microphone mounting bracket includes a fixing part connected to the microphone. Both sides of the fixing part are provided with connecting parts. One end of the connecting part is connected to the fixing part, and the other end is bent and connected to the control module.

2. The built-in audio microphone according to claim 1, characterized in that: The microphone holder is made of silicone or rubber.

3. A built-in audio microphone according to claim 1 or 2, characterized in that: The sound-generating module includes a first horn and a low-frequency reflection vibration device. The low-frequency reflection vibration device includes a horn cavity support, a silicone diaphragm placed on the horn cavity support, a silicone diaphragm fixing ring, and a vibration counterweight block provided at the center of the silicone diaphragm. The silicone diaphragm is located inside the silicone diaphragm fixing ring. Both ends of the horn cavity support are respectively connected to the first horn and the silicone diaphragm fixing ring. The end of the silicone diaphragm fixing ring away from the horn cavity support is connected to the control module.

4. A built-in audio microphone according to claim 3, characterized in that: The speaker cavity support is made of plastic, the silicone diaphragm fixing ring is made of plastic, the silicone diaphragm is made of silicone, and the vibration counterweight at the center of the silicone diaphragm is made of iron.

5. A built-in audio microphone according to claim 3, characterized in that: The control module is connected to a second speaker when powered on.

6. A built-in audio microphone according to claim 5, characterized in that: The first speaker is a miniature loudspeaker, and / or the second speaker is a miniature tuner speaker.

7. A built-in audio microphone according to claim 1, characterized in that: The housing includes a mesh head, a handle, and a tail cap. The two ends of the handle are detachably connected to the mesh head and the tail cap, respectively. The sound pickup module is located inside the mesh head, and the control module and the sound generation module are located inside the handle.

8. A built-in audio microphone according to claim 7, characterized in that: The inner wall of the handle is provided with a limiting groove along its axial direction to cooperate with the control module, and the control module is slidably engaged in the limiting groove.

9. A built-in audio microphone according to claim 7, characterized in that: One end of the tail cap is provided with a horn fixing ring, the end of the sound-generating module away from the control module is connected to the horn fixing ring, and the other end of the tail cap is detachably connected to the handle.

10. A built-in audio microphone according to claim 1, characterized in that: The control module includes a circuit board electrically connected to the pickup module and the sound-generating module, and also includes buttons, a display screen, a battery, a charging interface, a memory card slot and / or a wireless communication device disposed on the circuit board.

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