CN217240929U - Bone voiceprint sensor and electronic equipment - Google Patents
Bone voiceprint sensor and electronic equipment Download PDFInfo
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- CN217240929U CN217240929U CN202220205964.XU CN202220205964U CN217240929U CN 217240929 U CN217240929 U CN 217240929U CN 202220205964 U CN202220205964 U CN 202220205964U CN 217240929 U CN217240929 U CN 217240929U
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Abstract
The utility model provides a bone vocal print sensor and electronic equipment, bone vocal print sensor wherein include the base plate and fix shell on the base plate, the shell with the base plate forms packaging structure's inside is provided with flexible circuit board one side is provided with the microphone subassembly flexible circuit board's opposite side is provided with the quality piece. Utilize above-mentioned utility model discloses can solve traditional bone vocal print sensor and can't realize bone vocal print sensor's miniaturization, miniaturized problem in height.
Description
Technical Field
The utility model relates to a sensor design field, more specifically relates to a bone vocal print sensor and electronic equipment.
Background
The bone voiceprint sensor is a sensor which utilizes the driving air flow when the sound membrane vibrates, and therefore the flow signal is detected. A conventional bone voiceprint sensor generally includes a vibration component and a microphone component, wherein a vibration system is used for sensing an external vibration signal and converting an airflow change generated during vibration into an electrical signal through the microphone component, so as to express the vibration signal. The vibration assembly and the microphone assembly are core components of the bone voiceprint sensor.
However, in the conventional bone voiceprint sensor, the microphone component and the vibration component are separately arranged, so that the devices inside the whole bone voiceprint sensor are stacked too much, and the miniaturization and miniaturization of the bone voiceprint sensor cannot be realized in height.
Based on the above technical problems, a solution for realizing miniaturization and miniaturization of a bone voiceprint sensor is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention is to provide a bone voiceprint sensor to solve the problem that the traditional bone voiceprint sensor can not realize the miniaturization and miniaturization of the bone voiceprint sensor in height.
The embodiment of the utility model provides an in provide a bone vocal print sensor, include the base plate and fix shell on the base plate, the shell with the base plate forms packaging structure's inside is provided with flexible circuit board one side is provided with the microphone subassembly flexible circuit board's opposite side is provided with the quality piece.
In addition, the preferable structure is that a groove is formed in the upper side of the substrate, and the flexible circuit board is fixed to the top of the groove and fixed to the upper edge of the groove.
Further, it is preferable that the microphone assembly is disposed on an upper side of the flexible circuit board, and the mass is disposed on a lower side of the flexible circuit board and in the recess.
In addition, it is preferable that the depth of the groove is greater than the thickness of the mass.
In addition, the microphone assembly preferably includes a sensor chip and an ASIC chip fixed to the flexible circuit board, and the ASIC chip is electrically connected to the sensor chip and the flexible circuit board through wires, respectively.
In addition, a preferable structure is that a first through hole is formed in the flexible circuit board, a second through hole corresponding to the first through hole is formed in the mass block, the first through hole is communicated with the second through hole to jointly form a first vent hole, and the first vent hole corresponds to the vibrating diaphragm on the sensor chip in the vertical position.
Preferably, the housing has a second vent hole.
In addition, the flexible printed circuit board is preferably a printed circuit board having a PI film or a PET film as a base material.
In addition, the substrate is preferably a PCB.
Furthermore, the utility model also provides an electronic equipment, including aforementioned bone vocal print sensor.
According to the technical scheme above, the utility model provides a bone vocal print sensor and electronic equipment through set up the flexible circuit board in bone vocal print sensor's packaging structure, can realize vibration signal's collection and conversion, can save vibrating diaphragm structure and support frame in the vibration subassembly in traditional bone vocal print product to simplify bone vocal print sensor's stacked structure, effectively reduce whole bone vocal print sensor's height and dimension, and then reduce the process steps and improve the assembly yield.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
FIG. 1 is a front sectional view of a bone voiceprint sensor in accordance with an embodiment of the invention;
wherein the reference numerals include: the sensor comprises a shell 1, a substrate 2, a flexible circuit board 3, a sensor chip 4, an ASIC chip 5, a mass block 6, a groove 7, a first vent hole 8, a second vent hole 9, a vibrating diaphragm 10 and a lead 11.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
For the structure of the bone voiceprint sensor of the present invention, the following will describe in detail the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows one the utility model discloses bone vocal print sensor's main section structure of looking at, it is shown according to fig. 1, the embodiment of the utility model provides a bone vocal print sensor, including a base plate 2 (can choose the PCB Board for use) that is used for welding this bone vocal print sensor's internal Circuit and fix the shell 1 that plays the effect of protection components and parts on this base plate 2, form packaging structure between shell 1 and the base plate 2, set up (generally for erectting) flexible Circuit Board 3 (the effect of the vibration subassembly among the traditional bone vocal print sensor) that is used for responding to external vibration signal in packaging structure's inside, flexible Circuit Board 3 realizes electric connection through tin cream or conductive adhesive and base plate 2.
And, there are microphone assemblies on one side of the flexible circuit board 3, there are masses 6 on another side of the flexible circuit board 3, wherein, the masses 6 are used for promoting the vibrating effect of the flexible circuit board 3, in order to increase the sensitivity to the external vibration signal, the microphone assembly is used for changing the air current produced by the vibration of the flexible circuit board 3 into the electrical signal, express the vibration information with this.
Specifically, a groove 7 may be formed on the upper side of the substrate 2, the flexible circuit board 3 is fixed on the top of the groove 7 and fixed with the upper edge of the groove 7, the microphone assembly is disposed on the upper side of the flexible circuit board 3, and the mass 6 is disposed on the lower side of the flexible circuit board 3 and in the groove 7. Through the design of seting up recess 7, can further reduce whole bone vocal print sensor's device and pile up the height to realize bone vocal print sensor's miniaturization, miniaturized effect.
It should be noted that, in order to ensure that the groove 7 can provide an effective vibration space for the mass block 6, the depth of the groove 7 needs to be greater than the thickness of the mass block 6, so as to ensure the vibration displacement of the mass block 6 during normal use and prevent the mass block 6 from colliding with the bottom of the groove 7.
In a specific embodiment of the present invention, the microphone assembly may include a sensor chip 4 and an ASIC chip 5 fixed on the flexible circuit board 3, and the ASIC chip (ASIC, i.e. an application specific integrated circuit, which refers to an integrated circuit designed and manufactured according to the requirements of a specific user and the needs of a specific electronic system) is electrically connected to the sensor chip 4 and the flexible circuit board 3 through wires 11.
In the in-service use in-process, when flexible circuit board 3 vibrates, drive the air vibration and produce the vibrating airflow, after sensor chip 4 senses the vibrating airflow, can produce corresponding signal of telecommunication promptly, the signal of telecommunication is through ASIC chip 5 enlargies the back, on transmitting to base plate 2 flexible circuit board 3 through metal lead (being wire 11), on flexible circuit board 3 transmits to base plate 2, finally transmits to external signal processing device and carries out the signal analysis.
It should be noted that the mass 6 disposed on the flexible circuit board 3 can also provide stable support for the sensor chip 4, the ASIC chip 5 and the metal leads, thereby improving the stability and reliability of the sensor performance.
In addition, in order to realize the air flow in the bone voiceprint sensor, a first through hole may be formed in the flexible circuit board 3, a second through hole corresponding to the first through hole may be formed in the mass block 6, the first through hole and the second through hole are communicated and jointly form a first vent hole 8, and the first vent hole 8 corresponds to the vibrating diaphragm 10 on the sensor chip 4 in the up-and-down position; the arrangement of the first vent hole 8 can ensure that the airflow change generated by the flexible circuit board 3 is sensed by the diaphragm 10 on the sensor chip 4.
In addition, above the base plate 2, the shell 1 and the base plate 2 are mutually fixed through solder paste to realize the protection of the sensor and the isolation of sound, the shell 1 is also provided with a second vent hole 9, the air pressure balance inside the packaging structure in the process of backflow or baking is ensured, and the induction of external signals of the bone voiceprint sensor can be improved.
In the actual manufacturing process, the flexible circuit board 3 (also called as FPC board) may be a flexible circuit board 3 manufactured by using a PI film (polyimide film) which is a film-like insulating material with the best performance in the world), a PET film (ET film is a packaging film with relatively comprehensive performance) as a base material, or a circuit board manufactured by using other flexible materials.
In another aspect, the present invention further provides an electronic device, which includes the components of the aforementioned bone voiceprint sensor. In the actual use process, the electronic device may first collect the vibration signal around by using the voiceprint sensor provided by the present invention, and then perform corresponding processing, such as sound intensity recognition, vibration intensity recognition, etc., on the vibration signal.
The bone voiceprint sensor and the electronic device according to the present invention have been described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the above-described bone voiceprint sensor without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (10)
1. A bone voiceprint sensor comprises a substrate and a shell fixed on the substrate, the shell and the substrate form a packaging structure, and the bone voiceprint sensor is characterized in that,
the packaging structure is characterized in that a flexible circuit board is arranged in the packaging structure, a microphone assembly is arranged on one side of the flexible circuit board, and a mass block is arranged on the other side of the flexible circuit board.
2. The bone voiceprint sensor of claim 1 wherein,
a groove is formed in the upper side of the substrate, and the flexible circuit board is fixed to the top of the groove and fixed to the upper edge of the groove.
3. The bone voiceprint sensor of claim 2 wherein,
the microphone assembly is arranged on the upper side of the flexible circuit board, and the mass block is arranged on the lower side of the flexible circuit board and located in the groove.
4. The bone voiceprint sensor of claim 3 wherein,
the depth of the groove is greater than the thickness of the mass block.
5. The bone voiceprint sensor of claim 4 wherein,
the microphone assembly comprises a sensor chip and an ASIC chip which are fixed on the flexible circuit board, and the ASIC chip is electrically connected with the sensor chip and the flexible circuit board through leads respectively.
6. The bone voiceprint sensor of claim 5 wherein,
the flexible circuit board is provided with a first through hole, the mass block is provided with a second through hole corresponding to the first through hole in position, the first through hole is communicated with the second through hole and jointly forms a first through hole, and the first through hole corresponds to the vibrating diaphragm on the sensor chip in vertical position.
7. The bone voiceprint sensor of claim 6 wherein,
and the shell is provided with a second vent hole.
8. The bone voiceprint sensor of any one of claims 1 to 7,
the flexible circuit board is a circuit board using a PI film and a PET film as base materials.
9. The bone voiceprint sensor of claim 1 wherein,
the substrate is a PCB.
10. An electronic device characterized by comprising a bone voiceprint sensor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220205964.XU CN217240929U (en) | 2022-01-25 | 2022-01-25 | Bone voiceprint sensor and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220205964.XU CN217240929U (en) | 2022-01-25 | 2022-01-25 | Bone voiceprint sensor and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217240929U true CN217240929U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220205964.XU Active CN217240929U (en) | 2022-01-25 | 2022-01-25 | Bone voiceprint sensor and electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN217240929U (en) |
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2022
- 2022-01-25 CN CN202220205964.XU patent/CN217240929U/en active Active
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