CN209945545U - Bone voiceprint recognition sensor - Google Patents
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- CN209945545U CN209945545U CN201920740913.5U CN201920740913U CN209945545U CN 209945545 U CN209945545 U CN 209945545U CN 201920740913 U CN201920740913 U CN 201920740913U CN 209945545 U CN209945545 U CN 209945545U
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 76
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 5
- 230000001755 vocal effect Effects 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a bone voiceprint discernment sensor, including the device and the sensor device that shake of picking up that set up alone, it is fixed with the sensor device to pick up the device that shakes, is provided with airtight gas column between the two thereof, picks up and shakes and transmit to the sensor device through airtight gas column after picking up user's bone vibration, turns into the signal of telecommunication confession electron device with bone vibration signal by the sensor device and handles. The utility model discloses a bone voiceprint recognition sensor's the device of shaking of picking up can be produced alone respectively with sensor arrangement, and the back combines this two, has reduced the manufacturing degree of difficulty of whole bone voiceprint recognition sensor, and sensor arrangement's production can use current semiconductor package equipment to go on, reduces manufacturing cost, guarantees product uniformity and reliability. The utility model discloses a bone voiceprint recognition sensor has easy production, advantage that uniformity and reliability are high.
Description
Technical Field
The utility model relates to a sensor technical field, more specifically relates to an easy production, bone voiceprint recognition sensor that uniformity and reliability are high.
Background
The bone conduction microphone collects and converts sound signals into electric signals by utilizing slight vibration of bones of the head and the neck caused by speaking of a person. Because the microphone collects sound through air conduction, the microphone can transmit sound clearly in a very noisy environment. In many situations, such as fire scenes, fire fighters with gas defence cannot speak directly into the microphone with their mouths, so that bone conduction microphones can be used at this time. With the development of consumer electronics, bone conduction microphones are more and more widely used.
The bone conduction microphone in the prior art usually adopts a piezoelectric plate or a vibrating plate to collect bone vibration information and directly convert the bone vibration information into an electric signal, the assembly process is complex and is influenced by the assembly process, the performance difference between different products in the same batch is large, the integral sound pickup performance is poor, the external interference is easy to cause, and the reliability is poor.
Therefore, it is necessary to provide a new bone voiceprint recognition sensor to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easy production, bone voiceprint recognition sensor that uniformity and reliability are high.
The utility model provides a bone voiceprint recognition sensor, wherein: comprises a vibration pickup device and a sensor device fixedly combined with the vibration pickup device; a closed air column is arranged between the vibration pickup device and the sensor device; the vibration pickup device picks up bone vibration signals and transmits the bone vibration signals to the sensor device through the closed air column, and the sensor device converts the bone vibration signals into electric signals.
As a preferred technical solution, the vibration pickup device includes a protective shell and a vibration receiving device, and the vibration receiving device is fixedly combined with the protective shell; the vibration receiving device comprises a diaphragm and a vibration adjusting part arranged on the diaphragm.
As a further preferable technical scheme, the diaphragm is a plastic diaphragm or a metal diaphragm; a gasket is arranged on one side, close to the sensor device, of the diaphragm, and a gap is formed between the diaphragm and the sensor device through the gasket.
As another further preferable technical solution, the vibration adjusting portion is smaller than the diaphragm, and the vibration adjusting portion is configured to increase a mass of the vibration receiving apparatus.
As a further preferable technical scheme, the protective shell is provided with air holes, and the air holes are used for communicating the vibration pickup device with the external environment; when the bone voiceprint recognition sensor is applied, the air holes are blocked.
As a preferred technical solution, the sensor device includes a package structure and a sensor chip, wherein the package structure is provided with a communication structure; the closed gas column is composed of gas in a closed space surrounded by the vibration pickup device, the communication structure and the sensor chip.
As a further preferred technical solution, the package structure includes a first board body, a frame, and a second board body, the first board body, the frame, and the second board body enclose a containing cavity, and the sensor chip is disposed on the second board body in the containing cavity.
As a further preferable technical solution, the communication structure is disposed on the second plate body at a position corresponding to the sensor chip; and the first plate body is provided with an electric connecting device which electrically connects the sensor chip with an external electronic equipment circuit.
As another further preferable technical solution, the sensor chip is a microphone chip or a pressure sensor chip.
As a preferred technical scheme, the sensor device is an electret microphone, the electret microphone includes sound inlet and inner chamber, the vibration pickup device corresponds the electret microphone the sound inlet sets up, airtight gas column by the vibration pickup device the electret microphone sound inlet reaches the gas in the airtight space between the electret microphone inner chamber constitutes.
The utility model provides a bone voiceprint discernment sensor, including the device and the sensor device that shake of picking up that set up alone, it is fixed with the sensor device to pick up the device that shakes, is provided with airtight gas column between the two thereof, picks up and shakes and transmit to the sensor device through airtight gas column after picking up user's bone vibration, turns into the signal of telecommunication confession electron device with bone vibration signal by the sensor device and handles. The utility model discloses a bone voiceprint recognition sensor's the device of shaking of picking up can be produced alone respectively with sensor arrangement, and the back combines this two, has reduced the manufacturing degree of difficulty of whole bone voiceprint recognition sensor, and sensor arrangement's production can use current semiconductor package equipment to go on, reduces manufacturing cost, guarantees product uniformity and reliability. The utility model discloses a bone voiceprint recognition sensor has easy production, advantage that uniformity and reliability are high.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a specific embodiment of a bone voiceprint recognition sensor according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The utility model discloses a bone voiceprint discernment sensor, including picking up device and the sensor device that shakes, pick up the device that shakes and sensor device fixed combination, pick up to be provided with airtight gas column between device and the sensor device that shakes. Pick up the device that shakes and be used for picking up the bone vibration signal of wearing the person, pick up the device that shakes and pick up and get bone vibration signal back vibration, pick up the device vibration that shakes and drive airtight gas column vibration, sensor device picks up the vibration signal of airtight gas column, converts this vibration signal into the signal of telecommunication, this moment the utility model discloses a bone voiceprint recognition sensor accomplishes the process that converts the bone vibration signal of wearing the person into the signal of telecommunication.
As shown in fig. 1, the bone voiceprint recognition sensor of the present embodiment, the vibration pickup device includes a protective shell 11 and a vibration receiving device, and the vibration receiving device is fixedly combined with the protective shell 11. The vibration receiving device includes a diaphragm 12 and a vibration adjusting portion 13, and the vibration adjusting portion 13 is provided on the diaphragm 12. The integral structure of the diaphragm 12 and the vibration adjusting part 13 can pick up bone vibration of a wearer during speaking, the diaphragm 12 is a main vibration structure, and the vibration adjusting part 13 is used for adjusting the vibration of the diaphragm 12, so that the matching between the vibration of the diaphragm 12 and a bone vibration signal of the wearer is better.
In practical applications, the diaphragm 12 may be a plastic diaphragm or a metal diaphragm with elasticity, so as to ensure the vibration effect of the diaphragm 12. As shown in fig. 1, in the bone voiceprint recognition sensor of the present embodiment, a gasket 14 is further disposed on a side of the diaphragm 12 close to the sensor device, the gasket 14 is an annular gasket, the gasket 14 is disposed on an edge region of the diaphragm 12, the diaphragm 12 is fixed to the gasket 14 through glue, the gasket 14 makes a gap between the diaphragm 12 and the sensor device, and a gas in the gap between the gasket 12 and the sensor device is a sealed gas column.
As shown in fig. 1, the vibration adjusting part 13 is smaller than the diaphragm 12, and the vibration adjusting part 13 can increase the mass of the diaphragm 12, thereby effectively avoiding acoustic interference. The vibration adjusting part 13 may be fixedly coupled to the diaphragm 12 by a gel, and the vibration adjusting part 13 may be provided on any one surface of the diaphragm 12. In practical application, the vibration adjusting part can be made of metal or nonmetal, and the size and the quality of the vibration adjusting part can be matched and set according to the performance requirements of the final bone voiceprint recognition sensor.
Typically, the protective case 11 is a metal case. As shown in fig. 1, be provided with bleeder vent 11a on the protective housing 11 of the bone voiceprint recognition sensor of this embodiment, bleeder vent 11a is used for communicating the inside space of protective housing with external environment, and when bone voiceprint recognition sensor assembles, avoids leading to the sensor chip inefficacy in the device or the sensor device that shakes of picking up owing to the atmospheric pressure difference of the inner and outer space of protective housing, reduces the utility model discloses bone voiceprint recognition sensor's the assembly degree of difficulty. However, the utility model discloses when bone vocal print discernment sensor used, bleeder vent 11a need carry out the shutoff, also the bone vocal print discernment sensor of this embodiment accomplishes the assembly back, need increase one process, carries out the shutoff with bleeder vent 11 a. The air holes 11a can be plugged by arranging a sealant, sticking a sealing tape, adding a sealing plug and the like. Quantity, the form of bleeder vent 11a can adjust when actual production adds man-hour, do not all influence the utility model discloses bone voiceprint recognition sensor's advantage embodies.
As shown in fig. 1, the sensor device of the bone voiceprint recognition sensor of the present embodiment includes a package structure and a sensor chip 24. The encapsulation structure is provided with a communication structure 25. The sealed gas column consists of a vibration pickup device, a communication structure and gas in a sealed space surrounded by the sensor chip.
As shown in fig. 1, in the present embodiment, the package structure includes a first board 23, a frame 22 and a second board 21, the first board 23, the frame 22 and the second board 21 form a receiving cavity, and the sensor chip 24 is disposed on the second board 21 inside the receiving cavity. In the present embodiment, as shown in fig. 1, the gasket 14 is fixed to the second plate 21 by glue, the diaphragm 12 is directly fixed to the second plate 21 by the gasket 14, and a gap is formed between the diaphragm 12 and the second plate 21. The protective shell 11 is disposed on a side of the diaphragm 12 away from the second plate 21, and is used for protecting the diaphragm 12. At this time, the sealed gas column is composed of gas in a sealed space surrounded by the diaphragm 12, the gasket 14, the second plate body 21, the communication structure 25, and the sensor chip 24. Therefore, the utility model discloses an among the bone vocal print identification sensor shape and size of airtight gas post be anomalous, can adjust according to actual product design.
In the bone voiceprint recognition sensor of the present embodiment, the communication structure 25 is provided corresponding to the sensor chip 24. The first board 23 is provided with an electrical connection device 23a, and the electrical connection device 23a is used for electrically connecting the sensor chip 24 with a circuit of an external electronic device. In practice, the sensor device will also include an integrated circuit chip electrically connected to the sensor chip 24 to process the electrical signals generated by the sensor chip 24, as shown in fig. 1. When practical application, first plate body 23, frame 22 and second plate body 21 can the components of a whole that can function independently setting, also can first plate body 23 and frame 22 an organic whole set up or second plate body 21 and frame 22 an organic whole set up, all do not influence the utility model discloses bone voiceprint recognition sensor's advantage embodies.
The sensor chip 24 may be a microphone chip or a pressure sensor chip. The sensor device can adopt an MEMS microphone or an MEMS pressure sensor, the design difficulty of the bone voiceprint recognition sensor can be reduced by adopting the MEMS microphone or the MEMS pressure sensor, the sensor device can be produced by adopting the existing semiconductor packaging equipment, and the product yield, the yield and the reliability are guaranteed.
Of course, in practical application, a design scheme different from that of the present embodiment may also be adopted. The sensor device sets to the electret microphone, and the electret microphone includes sound inlet, inner chamber and sets up the airflow pickup module in the inner chamber, and the airflow pickup module is used for becoming the signal of telecommunication with airflow signal conversion, and is right the utility model discloses a bone voiceprint recognition sensor, this airflow signal is produced by the airflow change that the outside vibration pickup device vibration of electret microphone produced. At this moment, the utility model discloses a bone voiceprint recognition sensor, the device that shakes pickup need correspond electret microphone sound inlet hole sets up, and airtight gas column comprises the gas in the airtight space between device, electret microphone sound inlet hole and the electret microphone inner chamber that shakes pickup. Of course, the structure of the vibration pickup device may be the same as that described in the bone voiceprint recognition sensor of the above embodiment. The working principle, the design performance and the advantages of the designed bone voiceprint recognition sensor are similar to those of the bone voiceprint recognition sensor in the embodiment.
To sum up, the utility model provides a bone voiceprint recognition sensor, including the device and the sensor device that shake of picking up that set up alone, it is fixed with the sensor device to pick up the device that shakes, is provided with airtight gas column between the two thereof, picks up and shakes and transmit to the sensor device through airtight gas column after the device picks up user's bone vibration, becomes the signal of telecommunication by the sensor device and supplies electronic device to handle with bone vibration signal. The utility model discloses a bone voiceprint recognition sensor's the device of shaking of picking up can be produced alone respectively with sensor arrangement, and the back combines this two, has reduced the manufacturing degree of difficulty of whole bone voiceprint recognition sensor, and sensor arrangement's production can use current semiconductor package equipment to go on, reduces manufacturing cost, guarantees product uniformity and reliability. The utility model discloses a bone voiceprint recognition sensor has easy production, advantage that uniformity and reliability are high.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A bone voiceprint recognition sensor is characterized by comprising a vibration pickup device and a sensor device fixedly combined with the vibration pickup device; a closed air column is arranged between the vibration pickup device and the sensor device; the vibration pickup device picks up bone vibration signals and transmits the bone vibration signals to the sensor device through the closed air column, and the sensor device converts the bone vibration signals into electric signals.
2. The bone voiceprint recognition sensor of claim 1 wherein said vibration pickup means comprises a protective case and a vibration receiving means fixedly coupled to said protective case; the vibration receiving device comprises a diaphragm and a vibration adjusting part arranged on the diaphragm.
3. The bone voiceprint recognition sensor of claim 2 wherein said diaphragm is a plastic diaphragm or a metal diaphragm; a gasket is arranged on one side, close to the sensor device, of the diaphragm, and a gap is formed between the diaphragm and the sensor device through the gasket.
4. The bone vocal print recognition sensor according to claim 2, wherein the vibration adjusting portion is smaller than the diaphragm, the vibration adjusting portion being for increasing a mass of the vibration receiving device.
5. The bone voiceprint recognition sensor of claim 2 wherein a vent is provided on the protective shell, the vent communicating the vibration pickup device with an external environment; when the bone voiceprint recognition sensor is applied, the air holes are blocked.
6. The bone voiceprint recognition sensor of claim 1 wherein the sensor device comprises a packaging structure and a sensor chip, the packaging structure having a communication structure disposed thereon; the closed gas column is composed of gas in a closed space surrounded by the vibration pickup device, the communication structure and the sensor chip.
7. The bone voiceprint recognition sensor of claim 6 wherein the package structure comprises a first board, a frame and a second board, the first board, the frame and the second board enclose a receiving cavity, and the sensor chip is disposed on the second board in the receiving cavity.
8. The bone voiceprint recognition sensor of claim 7 wherein the communication structure is disposed on the second plate at a location corresponding to the sensor chip; and the first plate body is provided with an electric connecting device which electrically connects the sensor chip with an external electronic equipment circuit.
9. The bone voiceprint recognition sensor of claim 6 wherein the sensor chip is a microphone chip or a pressure sensor chip.
10. The bone voiceprint recognition sensor of claim 1 wherein the sensor device is an electret microphone, the electret microphone includes a sound inlet and an inner cavity, the vibration pickup device is disposed corresponding to the sound inlet of the electret microphone, and the closed air column is composed of the vibration pickup device, the electret microphone sound inlet and air in a closed space between the electret microphone inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740913.5U CN209945545U (en) | 2019-05-22 | 2019-05-22 | Bone voiceprint recognition sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740913.5U CN209945545U (en) | 2019-05-22 | 2019-05-22 | Bone voiceprint recognition sensor |
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| CN209945545U true CN209945545U (en) | 2020-01-14 |
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| CN201920740913.5U Active CN209945545U (en) | 2019-05-22 | 2019-05-22 | Bone voiceprint recognition sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113259795A (en) * | 2021-04-26 | 2021-08-13 | 歌尔微电子股份有限公司 | Bone voiceprint sensor, manufacturing method thereof and electronic device |
| US20210302227A1 (en) * | 2020-03-25 | 2021-09-30 | Merry Electronics Co., Ltd. | Vibration sensor |
| US20210364346A1 (en) * | 2020-03-25 | 2021-11-25 | Merry Electronics Co., Ltd. | Vibration sensor |
| WO2022027423A1 (en) * | 2020-08-06 | 2022-02-10 | 大象声科（深圳）科技有限公司 | Deep learning noise reduction method and system fusing signal of bone vibration sensor with signals of two microphones |
-
2019
- 2019-05-22 CN CN201920740913.5U patent/CN209945545U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210302227A1 (en) * | 2020-03-25 | 2021-09-30 | Merry Electronics Co., Ltd. | Vibration sensor |
| US20210364346A1 (en) * | 2020-03-25 | 2021-11-25 | Merry Electronics Co., Ltd. | Vibration sensor |
| US11619544B2 (en) * | 2020-03-25 | 2023-04-04 | Merry Electronics Co., Ltd. | Vibration sensor having vent for pressure enhancing member |
| US11781901B2 (en) * | 2020-03-25 | 2023-10-10 | Merry Electronics Co., Ltd. | Vibration sensor with pressure enhancement |
| WO2022027423A1 (en) * | 2020-08-06 | 2022-02-10 | 大象声科（深圳）科技有限公司 | Deep learning noise reduction method and system fusing signal of bone vibration sensor with signals of two microphones |
| CN113259795A (en) * | 2021-04-26 | 2021-08-13 | 歌尔微电子股份有限公司 | Bone voiceprint sensor, manufacturing method thereof and electronic device |
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Effective date of registration: 20200612 Address after: 266104 room 103, 396 Songling Road, Laoshan District, Qingdao, Shandong Province Patentee after: Goer Microelectronics Co.,Ltd. Address before: 266104 Laoshan Qingdao District North House Street investment service center room, Room 308, Shandong Patentee before: GOERTEK TECHNOLOGY Co.,Ltd. |