CN111328006B - Wireless sound collection equipment for vibration electricity taking - Google Patents
Wireless sound collection equipment for vibration electricity taking Download PDFInfo
- Publication number
- CN111328006B CN111328006B CN202010347462.6A CN202010347462A CN111328006B CN 111328006 B CN111328006 B CN 111328006B CN 202010347462 A CN202010347462 A CN 202010347462A CN 111328006 B CN111328006 B CN 111328006B
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- vibration
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- sound collection
- electric energy
- energy conversion
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- 230000005611 electricity Effects 0.000 title abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000006243 chemical reaction Methods 0.000 claims abstract description 65
- 238000010248 power generation Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims description 14
- 238000004146 energy storage Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/02—Microphones
- H04R17/025—Microphones using a piezoelectric polymer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention provides wireless sound collection equipment for vibration electricity taking, which comprises a vibration power generation mechanism, a sound collection mechanism, a wireless transmission mechanism and an electric storage mechanism, wherein the vibration power generation mechanism comprises a mechanical energy electric energy conversion piece and a vibration piece, the mechanical energy electric energy conversion piece comprises a fixed end and a vibration end, the vibration end of the mechanical energy electric energy conversion piece is in transmission connection with the vibration piece, the vibration piece can perform relative reciprocating motion with the fixed end of the mechanical energy electric energy conversion piece under external vibration, and the electric storage mechanism is respectively and electrically connected with the mechanical energy electric energy conversion piece, the sound collection mechanism and the wireless transmission mechanism. According to the wireless sound collection device, the vibration power generation mechanism is arranged, the power supply effect of the wireless sound collection device is achieved by utilizing vibration power generation, so that the vibration of the mechanical energy and electric energy conversion piece is utilized to generate electric energy, the corresponding wireless sound collection device is powered, the need of the wireless sound collection device for an external power supply is avoided, and the wireless sound collection device is convenient to install.
Description
Technical Field
The invention relates to a power generation mechanism, in particular to wireless sound collection equipment for vibration power taking.
Background
In the long-term operation process of power station power equipment, various faults can be inevitably caused under the influence of external environment factors and self aging. In the event of a mechanical failure of the device, the vibration characteristics or the vibration energy in a portion of the frequency band will change, often accompanied by abnormal sounds. Thus, the sound signals measured at different locations of the power equipment contain rich information. Therefore, the sound collection equipment is required to be arranged on important equipment such as a transformer substation, and the monitoring effect is achieved by utilizing the collection of sound wave changes. However, the sound collection device needs an external power supply, so that the application and installation of the sound collection device are complicated, and the use is limited.
Disclosure of Invention
The invention provides wireless sound collection equipment for vibration electricity taking, which at least solves the problem that the wireless sound collection equipment in the prior art needs an external power supply.
The invention provides wireless sound collection equipment for vibration electricity taking, which comprises a vibration power generation mechanism, a sound collection mechanism, a wireless transmission mechanism and an electric storage mechanism, wherein the vibration power generation mechanism comprises a mechanical energy electric energy conversion part and a vibration part, the mechanical energy electric energy conversion part comprises a fixed end and a vibration end, the vibration end of the mechanical energy electric energy conversion part is in transmission connection with the vibration part, the vibration part can perform relative reciprocating motion with the fixed end of the mechanical energy electric energy conversion part under external vibration, and the electric storage mechanism is respectively and electrically connected with the mechanical energy electric energy conversion part, the sound collection mechanism and the wireless transmission mechanism.
Further, the sound collection mechanism comprises a pickup and an AD conversion unit, the pickup is electrically connected with the AD conversion unit, and the AD conversion unit is electrically connected with the wireless transmission mechanism and the power storage mechanism respectively.
Further, the power storage mechanism comprises a voltage doubling rectifying unit, a power management unit and a battery, and the power management unit is electrically connected with the voltage doubling rectifying unit, the battery, the AD conversion unit and the wireless transmission mechanism respectively.
Further, the power storage mechanism further comprises an energy storage unit, and the voltage doubling rectifying unit is electrically connected with the power management unit through the energy storage unit.
Further, the mechanical energy electric energy conversion piece is piezoceramics, the fixed end and the vibrating end of the mechanical energy electric energy conversion piece are respectively positioned at two opposite ends of the piezoceramics, the piezoceramics are provided with a positive electrode end and a negative electrode end, and the positive electrode end and the negative electrode end of the piezoceramics are respectively electrically connected with the electric storage mechanism.
Still further, the vibration power generation mechanism further comprises an elastic device, the elastic device comprises an elastic piece, one end of the elastic piece is fixed, the other end of the elastic piece is connected with the vibration piece, and the elastic piece drives the vibration piece to reciprocate.
Still further, the elastic device comprises a first elastic piece and a second elastic piece, wherein the first elastic piece and the second elastic piece are of an elastic piece structure, and the first elastic piece and the second elastic piece are symmetrically arranged on two sides of the vibrating piece.
Still further, vibration power generation mechanism includes fixed frame, the stiff end of mechanical energy electric energy conversion spare is installed on fixed frame, elastic component one end links to each other with fixed frame is fixed.
Further, the vibration power generation mechanism further comprises a speed reducer, the speed reducer comprises a gear, the speed reducer is in transmission connection with the vibrating piece, the vibrating piece drives the gear to reciprocate, and the gear is meshed with the vibrating end of the mechanical energy and electric energy conversion piece.
Still further, the mechanical-to-electrical energy conversion member has a natural resonant frequency, and the reciprocating frequency of the gear is 50% -200% of the vibration frequency.
Compared with the prior art, the wireless sound collection device has the advantages that the vibration power generation mechanism is arranged, the power supply effect on the wireless sound collection device is realized by utilizing vibration power generation, so that the electric energy is generated by utilizing the vibration of the mechanical energy electric energy conversion piece, the corresponding wireless sound collection device is powered, the requirement of the wireless sound collection device on an external power supply is avoided, and the wireless sound collection device is convenient to install. Meanwhile, the vibration power generation mechanism adopts the vibration piece and the mechanical energy electric energy conversion piece, and vibration generated by mechanical equipment during operation can drive the vibration piece and the mechanical energy electric energy conversion piece to perform relative motion, so that electric energy is generated by utilizing the vibration of the mechanical energy electric energy conversion piece.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vibration power generation mechanism according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The invention provides wireless sound collection equipment for vibration electricity taking, which comprises a vibration power generation mechanism, a sound collection mechanism, a wireless transmission mechanism and an electric storage mechanism, wherein the vibration power generation mechanism comprises a mechanical energy and electric energy conversion piece 2 and a vibration piece 3, the mechanical energy and electric energy conversion piece 2 comprises a fixed end 21 and a vibration end, the vibration end 21 of the mechanical energy and electric energy conversion piece 2 is in transmission connection with the vibration piece 3, the vibration piece 3 can perform relative reciprocating motion with the fixed end 21 of the mechanical energy and electric energy conversion piece 2 under external vibration, and the electric storage mechanism is respectively and electrically connected with the mechanical energy and electric energy conversion piece, the sound collection mechanism and the wireless transmission mechanism.
Optionally, as shown in fig. 1, the sound collecting mechanism includes a pickup and an AD conversion unit, where the pickup is electrically connected to the AD conversion unit, and the AD conversion unit is electrically connected to the wireless transmission mechanism and the power storage mechanism, respectively.
The wireless transmission mechanism is a Bluetooth MCU unit, and an nrf52832 chip can be adopted. The AD conversion unit is a WM8287 chip.
In particular, as shown in fig. 1, the power storage mechanism includes a voltage-multiplying rectifying unit, a power management unit, and a battery, where the power management unit is electrically connected to the voltage-multiplying rectifying unit, the battery, the AD conversion unit, and the wireless transmission mechanism, respectively.
In particular, as shown in fig. 1, the power storage mechanism further includes an energy storage unit, and the voltage-multiplying rectification unit is electrically connected to the power management unit through the energy storage unit.
The vibration power generation mechanism generates power through vibration, the output voltage is increased through the voltage doubling rectifying unit, and the energy storage unit stores energy; the energy storage unit supplies power to the battery through the power management unit. When the device works, power is supplied to the sound collection mechanism and the wireless transmission mechanism through the battery by the power management unit; the sound pickup collects sound information and sends the sound information to the wireless transmission mechanism through the AD conversion unit, so that wireless data transmission is realized.
Alternatively, as shown in fig. 2, the mechanical-energy-electric-energy conversion member 2 is a piezoelectric ceramic.
In particular, as shown in fig. 2, the piezoelectric ceramic has a circular shape.
Specifically, as shown in fig. 2, the fixed end 21 and the vibrating end of the mechanical energy-electric energy conversion member 2 are respectively located at two opposite ends of the piezoelectric ceramic, the piezoelectric ceramic is provided with a positive end and a negative end, and the positive end and the negative end of the piezoelectric ceramic are respectively electrically connected with the electric storage mechanism.
As shown in fig. 2, the piezoelectric ceramic is in a circular plate shape and is perpendicular to the vibration direction of the vibrator 3.
Optionally, as shown in fig. 2, the vibration power generation mechanism further includes an elastic device 4, where the elastic device 4 includes an elastic member, one end of the elastic member is fixed, and the other end of the elastic member is connected with the vibration member 3, and the elastic member drives the vibration member 3 to reciprocate.
In particular, as shown in fig. 2, the elastic device 4 includes a first elastic member and a second elastic member, where the first elastic member and the second elastic member are both in an elastic member structure, and the first elastic member and the second elastic member are symmetrically installed on two sides of the vibration member 3.
In particular, as shown in fig. 2, the vibration power generation mechanism includes a fixed frame 1, a fixed end 21 of the mechanical power conversion member 2 is mounted on the fixed frame 1, and one end of the elastic member is fixedly connected to the fixed frame 1.
As shown in fig. 2, the first elastic element and the second elastic element are springs, the vibration element 3 is a toothed iron block, the fixed frame 1 can be installed on equipment to be monitored, when the equipment vibrates, the fixed frame 1 can be driven to vibrate, the vibration element 3 can relatively move with the fixed frame 1 due to inertia, and the vibration element reciprocates under the action of the first elastic element and the second elastic element, so that the mechanical energy and electric energy conversion element 2 is driven to vibrate.
Optionally, as shown in fig. 2, the vibration power generation mechanism further includes a speed reduction device 5, the speed reduction device 5 includes a gear 51, the speed reduction device 5 is in transmission connection with the vibration member 3, the vibration member 3 drives the gear 51 to reciprocate, and the gear 51 is meshed with the vibration end of the mechanical energy and electric energy conversion member 2.
In particular, as shown in fig. 2, the mechanical-energy-electric-energy conversion members 2 are not less than two.
As shown in fig. 2, the speed reducing device 5 is a speed-changing gear 5, the vibrating member 3 and the mechanical energy-electric energy conversion member 2 are respectively meshed with tooth portions with different tooth ratios of the speed-changing gear 5, the reciprocating motion of the vibrating member 3 drives the structure of the inner shaft gear 52 of the speed-changing gear 5 to rotate, the structure of the outer shaft gear 51 of the speed-changing gear performs reciprocating motion to stir the mechanical energy-electric energy conversion member 2 to vibrate, and the mechanical energy-electric energy conversion member 2 is utilized to generate electricity so as to realize the electricity generation and power supply functions.
According to the embodiment of the invention, the vibration power generation mechanism is arranged, the power supply effect on the wireless sound collection equipment is realized by utilizing vibration power generation, so that the electric energy is generated by utilizing the vibration of the mechanical energy-electric energy conversion piece, the corresponding wireless sound collection equipment is powered, the requirement of the wireless sound collection equipment on an external power supply is avoided, and the wireless sound collection equipment is convenient to install. Meanwhile, the vibration power generation mechanism of the embodiment of the invention adopts the vibration piece and the mechanical energy electric energy conversion piece, and the vibration generated by the mechanical equipment during working can drive the vibration piece and the mechanical energy electric energy conversion piece to perform relative movement, so that the vibration of the mechanical energy electric energy conversion piece is utilized to generate electric energy. In addition, the embodiment of the invention improves the electricity generation amount by adopting a plurality of mechanical energy-electric energy conversion parts.
In particular, as shown in fig. 2, the mechanical-to-electrical energy conversion member 2 has a natural resonant frequency, and the reciprocating frequency of the gear 51 is 50% -200% of the vibration frequency.
The piezoelectric ceramic plate of the embodiment of the invention is used as a device for converting mechanical energy and electric energy, has fixed resonant frequency, and has higher efficiency for converting mechanical energy into electric energy when the vibration frequency is closer to the resonant frequency, so that a proper speed reduction device can be adopted according to the vibration frequency of monitoring equipment, and a gear of the speed reduction device is utilized to perform reciprocating motion according to the frequency close to the resonant frequency of the piezoelectric ceramic plate, thereby driving the piezoelectric ceramic plate to vibrate at the resonant frequency close to the piezoelectric ceramic plate, and improving the conversion efficiency of mechanical energy and electric energy.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application after reading the present specification, and these modifications and variations do not depart from the scope of the application as claimed in the pending claims.
Claims (7)
1. The wireless sound collection device is characterized by comprising a vibration power generation mechanism, a sound collection mechanism, a wireless transmission mechanism and an electric storage mechanism, wherein the vibration power generation mechanism comprises a mechanical energy electric energy conversion piece and a vibration piece, the mechanical energy electric energy conversion piece comprises a fixed end and a vibration end, the vibration end of the mechanical energy electric energy conversion piece is in transmission connection with the vibration piece, the vibration piece can perform relative reciprocating motion with the fixed end of the mechanical energy electric energy conversion piece under external vibration, and the electric storage mechanism is respectively and electrically connected with the mechanical energy electric energy conversion piece, the sound collection mechanism and the wireless transmission mechanism;
The sound collection mechanism comprises a pickup and an AD conversion unit, the pickup is electrically connected with the AD conversion unit, and the AD conversion unit is electrically connected with the wireless transmission mechanism and the power storage mechanism respectively;
The mechanical energy-electric energy conversion part is made of piezoelectric ceramic, the fixed end and the vibrating end of the mechanical energy-electric energy conversion part are respectively positioned at two opposite ends of the piezoelectric ceramic, the piezoelectric ceramic is provided with a positive electrode end and a negative electrode end, and the positive electrode end and the negative electrode end of the piezoelectric ceramic are respectively electrically connected with the electric storage mechanism;
The vibration power generation mechanism further comprises an elastic device, the elastic device comprises an elastic piece, one end of the elastic piece is fixed, the other end of the elastic piece is connected with the vibration piece, and the elastic piece drives the vibration piece to reciprocate.
2. The wireless sound collection device according to claim 1, wherein the power storage mechanism comprises a voltage doubling rectifying unit, a power management unit and a battery, and the power management unit is electrically connected with the voltage doubling rectifying unit, the battery, the AD conversion unit and the wireless transmission mechanism, respectively.
3. The wireless sound collection device according to claim 2, wherein the power storage mechanism further comprises an energy storage unit, and the voltage doubler rectifying unit is electrically connected with the power management unit through the energy storage unit.
4. The wireless sound collecting device according to claim 1, wherein the elastic means comprises a first elastic member and a second elastic member, the first elastic member and the second elastic member are both elastic member structures, and the first elastic member and the second elastic member are symmetrically installed at two sides of the vibration member.
5. The wireless sound collecting apparatus according to claim 1, wherein the vibration power generation mechanism comprises a fixed frame, the fixed end of the mechanical energy-electric energy conversion member is mounted on the fixed frame, and one end of the elastic member is fixedly connected with the fixed frame.
6. The wireless sound collection device according to claim 1, wherein the vibration power generation mechanism further comprises a speed reduction device, the speed reduction device comprises a gear, the speed reduction device is in transmission connection with the vibrating piece, the vibrating piece drives the gear to reciprocate, and the gear is meshed with the vibrating end of the mechanical energy and electric energy conversion piece.
7. The wireless sound collection device of claim 6, wherein the mechanical-to-electrical energy conversion member has a natural resonant frequency, and the gear reciprocates at a frequency of 50% -200% of the vibration frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347462.6A CN111328006B (en) | 2020-04-28 | 2020-04-28 | Wireless sound collection equipment for vibration electricity taking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347462.6A CN111328006B (en) | 2020-04-28 | 2020-04-28 | Wireless sound collection equipment for vibration electricity taking |
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| CN111328006A CN111328006A (en) | 2020-06-23 |
| CN111328006B true CN111328006B (en) | 2024-07-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112866850B (en) * | 2021-01-22 | 2024-08-20 | 湖南普奇水环境研究院有限公司 | Wireless transmission pickup |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206210696U (en) * | 2016-12-02 | 2017-05-31 | 广州市宝太电子有限公司 | A kind of self-generating wireless intelligent switch |
| CN211531327U (en) * | 2020-04-28 | 2020-09-18 | 厦门晓意声云科技有限公司 | Wireless sound collection equipment capable of obtaining electricity through vibration |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054553Y (en) * | 2007-05-29 | 2008-04-30 | 西南科技大学 | Power supply device for radio sensor network node based on piezoelectric porcelain vibration power generation |
| CN103532426A (en) * | 2012-07-04 | 2014-01-22 | 扬州博达电气设备有限公司 | Self-powered wireless sensing network node |
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2020
- 2020-04-28 CN CN202010347462.6A patent/CN111328006B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206210696U (en) * | 2016-12-02 | 2017-05-31 | 广州市宝太电子有限公司 | A kind of self-generating wireless intelligent switch |
| CN211531327U (en) * | 2020-04-28 | 2020-09-18 | 厦门晓意声云科技有限公司 | Wireless sound collection equipment capable of obtaining electricity through vibration |
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