CN204943799U - A kind of air purifier with sound sensing function - Google Patents
A kind of air purifier with sound sensing function Download PDFInfo
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- CN204943799U CN204943799U CN201520592066.4U CN201520592066U CN204943799U CN 204943799 U CN204943799 U CN 204943799U CN 201520592066 U CN201520592066 U CN 201520592066U CN 204943799 U CN204943799 U CN 204943799U
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- air purifier
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- microprocessor
- source chip
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Abstract
A kind of air purifier with sound sensing function, comprise air-purifying module, power module, electronic switch, microprocessor, sound collector and constant-current source chip, air-purifying module comprises blower fan, electronic switch comprises input, output and control end, the input of electronic switch, output and control end respectively with power module, constant-current source chip and microprocessor connect, the pwm signal interface of microprocessor is connected with constant-current source chip, constant-current source chip and sound transducer are all connected with microprocessor, sound transducer is for gathering the acoustic information in surrounding environment residing for air purifier, constant-current source chip is connected with blower fan.The air purifier with sound sensing function of the present utility model by the open and close of Sound control blower fan, and can control the rotating speed of blower fan, is convenient for people to use.
Description
Technical field
The utility model relates to technical field of air purification, particularly relates to a kind of air purifier with sound sensing function.
Background technology
Air purifier is that various air pollutants (generally comprising the finishing pollution of PM2.5, dust, pollen, peculiar smell, formaldehyde and so on, bacterium, anaphylactogen etc.) can be adsorbed, decompose or be transformed to one, the product of effective raising air cleanliness, is mainly used in the purification of air of family expenses, commercialization, industry, building etc.
Along with people pay close attention to constantly lifting, air purifier enjoy consumer to pay close attention to living environment, air quality.The rotating speed of the blower fan of air purifier of the prior art needs the driving switch of manual operation blower fan to adjust rotation speed of fan usually, when allowing people be busy with working at hand, also will stand up specially to operate driving switch, be not easy to people and use.
Utility model content
The purpose of this utility model is, provides a kind of air purifier with sound sensing function, so that people regulate and control air purifier at a distance.
The utility model embodiment provides a kind of air purifier with sound sensing function, comprise air-purifying module, power module, electronic switch, microprocessor, sound collector and constant-current source chip, described air-purifying module comprises blower fan, described electronic switch comprises input, output and control end, the input of described electronic switch, output and control end respectively with described power module, described constant-current source chip and described microprocessor connect, the pwm signal interface of described microprocessor is connected with described constant-current source chip, described constant-current source chip and described sound transducer are all connected with described microprocessor, described sound transducer is for gathering the acoustic information in surrounding environment residing for air purifier, described constant-current source chip is connected with described blower fan.
Further, described air purifier also comprises housing and circuit board, described air-purifying module and described circuit board are all arranged in described housing, and described power module, described electronic switch, described microprocessor and described constant-current source chip are all arranged on described circuit board.
Further, described housing is divided into front shell and rear portion housing, and described sound transducer is arranged on the housing of described rear portion.
Further, described rear portion housing offers exhaust outlet, and described exhaust outlet is opened in the back side of rear portion housing and the bottom of close rear portion housing.
Further, described electronic switch is triode.
Further, the model of described constant-current source chip is PT.
The beneficial effects of the utility model are:
The air purifier with sound sensing function of the present utility model gathers the acoustic information of surrounding environment residing for air purifier by sound transducer, acoustic information in environment residing for the air purifier that microprocessor collects according to sound transducer, carry out corresponding start, such as open or close air purifier device, heighten or turn down the rotating speed of blower fan, be convenient for people to use.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram with the air purifier of sound sensing function of the utility model embodiment.
Fig. 2 is the structural representation of the air purifier in Fig. 1.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is further described.
Please refer to Fig. 1, the utility model embodiment provides a kind of air purifier with sound sensing function, comprise air-purifying module 11, power module 13, electronic switch 14, microprocessor 16, sound collector 18 and constant-current source chip 19, described air-purifying module 11 comprises blower fan 111, described electronic switch 14 comprises input, output and control end, the input of described electronic switch 14, output and control end respectively with described power module 13, described constant-current source chip 19 and described microprocessor 16 connect, the pwm signal interface of described microprocessor 16 is connected with described constant-current source chip 19, described constant-current source chip 19 is all connected with described microprocessor 16 with described sound transducer 18, described sound transducer 18 is for gathering the acoustic information in surrounding environment residing for air purifier, described constant-current source chip 19 is connected with described blower fan 111.Be understandable that, described power module 13 is also connected with microprocessor 16 and sound collector 18 respectively, so that provide electric energy to microprocessor 16 and sound collector 18, for the ease of diagram, in Fig. 1, do not draw the line between power module 13 and microprocessor 16 and sound collector 18.
In the present embodiment, described air purifier also comprises housing 101 and circuit board, described air-purifying module 11 and described circuit board are all arranged in described housing 101, and described power module 13, described electronic switch 14, described microprocessor 16 and described constant-current source chip 19 are all arranged on described circuit board.Further, power module 13 is power supply circuit, can provide electric energy after power module 13 is connected with domestic power supply by power line to air-purifying module 11, microprocessor 16 and sound transducer 18.Certainly, in other embodiments, power module 13 also can be battery, and power module 13 can directly to air-purifying module 11, microprocessor 16 and sound transducer 18.
Incorporated by reference to reference Fig. 2, in the present embodiment, described housing 101 is divided into front shell 103 and rear portion housing 104, and described sound transducer 18 is arranged on described rear portion housing 104, so that sound transducer 18 gathers the acoustic information in surrounding environment residing for air purifier.
In the present embodiment, described rear portion housing 104 offers exhaust outlet 105, and described exhaust outlet 105 is opened in the back side of rear portion housing 104 and the bottom of close rear portion housing 104, the air purified through air-purifying module 11 is discharged by exhaust outlet 105.
In the present embodiment, electronic switch 14 is triode, colelctor electrode, the emitter base of the input of electronic switch 14, output and control end corresponding triode respectively, and triode is set to high level conducting.
In the present embodiment, the model of constant-current source chip 19 is PT4105, PT4105 is a great power LED driving 18V step-down controller.PT4105 comprises a PWM controller, a high-precision band gap reference source, error amplifier, phase compensating circuit, soft starting circuit, protection circuit, IC enable circuits, input voltage detection circuit, logic control circuit and a power MOS pipe.PT4105 adopts fixed function to avoid agreeing with infringement at output overloading to device.Wherein, PWM controller is connected with the pwm signal interface of microprocessor 16.
In the present embodiment, air-purifying module 11 comprises each element for purifying air in air purifier of the prior art, such as forward filtering net, HEAP filter screen, active carbon filter screen and photocatalyst filtering net, in air-purifying module 11, the function of forward filtering net, HEAP filter screen, active carbon filter screen and photocatalyst filtering net is same as the prior art, does not repeat them here.
The operation principle with the air purifier of sound sensing function of the present utility model is as follows:
Sound transducer 18 is for gathering the acoustic information in environment, audio digital signal corresponding to the sound collected convert to by A/D conversion and be sent to microprocessor 16, such as, when sound transducer 18 gathers the sound of " air purifier unlatching ", sound transducer 18 is sent to microprocessor 16 after " air purifier unlatching " being converted to corresponding audio digital signal by A/D conversion, after now microprocessor 16 receives the instruction of " air purifier unlatching ", a high level signal is exported to electronic switch 14 by I/O interface 22, make electronic switch 14 conducting, thus constant-current source chip 19 is powered on, simultaneously, it is 50% to constant-current source chip 19 that microprocessor 16 exports the first pwm signal such as dutycycle by pwm signal interface, to control the dutycycle of constant-current source chip 19, and then control the rotating speed of blower fan 111 when air purifier is opened.After blower fan 111 is opened, if when user thinks that the rotating speed of blower fan 111 is inadequate, user can send the sound of " rotating speed uprises ", sound transducer 18 collects the sound of " rotating speed uprises ", " rotating speed uprises " is converted to corresponding audio digital signal by A/D conversion by sound transducer 18, then microprocessor 16 is sent to, after now microprocessor 16 receives the instruction of " rotating speed uprises ", it is 60% to constant-current source chip 19 that microprocessor 16 exports the second pwm signal such as dutycycle, improve the dutycycle of constant-current source chip 19, thus the rotating speed of blower fan 111 is uprised, if certainly user feel now blower fan 111 rotating speed or not time, user can continue the sound sending " rotating speed uprises ", sound transducer 18 gathers the sound of " rotating speed uprises ", sound transducer 18 is sent to microprocessor 16 after " rotating speed uprises " being converted to corresponding audio digital signal by A/D conversion, after now microprocessor 16 receives the instruction of " rotating speed uprises ", it is 65% to constant-current source chip 19 that microprocessor 16 exports the 3rd pwm signal such as dutycycle, improve the dutycycle of constant-current source chip 19, thus make the rotating speed of blower fan 111 continue to uprise.
After blower fan 111 is opened, if when the rotating speed of user's blower fan 111 is too high, user can send the sound of " rotating speed step-down ", after sound transducer 18 collects the sound of " rotating speed step-down ", " rotating speed step-down " is converted to corresponding audio digital signal by A/D conversion by sound transducer 18, then microprocessor 16 is sent to, after now microprocessor 16 receives the instruction of " rotating speed uprises ", it is 45% to constant-current source chip 19 that microprocessor 16 exports the 4th pwm signal such as dutycycle, reduce the dutycycle of constant-current source chip 19, thus make the rotating speed step-down of blower fan 111, certainly, if user feels the rotating speed of now blower fan 111 or too high, user can continue the sound sending " rotating speed step-down ", sound transducer 18 collects the sound of " rotating speed step-down ", " rotating speed step-down " is converted to corresponding audio digital signal by A/D conversion by sound transducer 18, then microprocessor 16 is sent to, after now microprocessor 16 receives the instruction of " rotating speed step-down ", it is 40% to constant-current source chip 19 that microprocessor 16 exports the 5th pwm signal such as dutycycle, reduce the duty of constant-current source chip 19, thus make the rotating speed of blower fan 111 continue step-down.
When user do not need to carry out air clean time, the sound that user sends " closedown air purifier ", now sound transducer 18 collects the sound of " closedown air purifier ", " closedown air purifier " is converted to corresponding audio digital signal by A/D conversion by sound transducer 18, then microprocessor 16 is sent to, after now microprocessor 16 receives the instruction of " cut out air purifier ", a low level signal is exported to electronic switch 14 by I/O interface 22, electronic switch 14 is disconnected, thus makes constant-current source chip 19 power-off.
The beneficial effects of the utility model are:
The air purifier with sound sensing function of the present utility model gathers the acoustic information of surrounding environment residing for air purifier by sound transducer 18, acoustic information in environment residing for the air purifier that microprocessor 16 collects according to sound transducer 18, carry out corresponding start, such as open or close air purifier device, heighten or turn down the rotating speed of blower fan 111, be convenient for people to use.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. one kind has the air purifier of sound sensing function, it is characterized in that, comprise air-purifying module (11), power module (13), electronic switch (14), microprocessor (16), sound collector (18) and constant-current source chip (19), described air-purifying module (11) comprises blower fan (111), described electronic switch (14) comprises input, output and control end, the input of described electronic switch (14), output and control end respectively with described power module (13), described constant-current source chip (19) and described microprocessor (16) connect, the pwm signal interface of described microprocessor (16) is connected with described constant-current source chip (19), described constant-current source chip (19) and described sound collector (18) are all connected with described microprocessor (16), described sound collector (18) is for gathering the acoustic information in surrounding environment residing for air purifier, described constant-current source chip (19) is connected with described blower fan (111).
2. there is the air purifier of sound sensing function as claimed in claim 1, it is characterized in that, described air purifier also comprises housing (101) and circuit board, described air-purifying module (11) and described circuit board are all arranged in described housing (101), and described power module (13), described electronic switch (14), described microprocessor (16) and described constant-current source chip (19) are all arranged on described circuit board.
3. there is the air purifier of sound sensing function as claimed in claim 2, it is characterized in that, described housing (101) is divided into front shell (103) and rear portion housing (104), and described sound collector (18) is arranged on described rear portion housing (104).
4. there is the air purifier of sound sensing function as claimed in claim 3, it is characterized in that, described rear portion housing (104) offers exhaust outlet (105), and described exhaust outlet (105) is opened in the back side of rear portion housing (104) and the bottom at close rear portion housing (104).
5. have the air purifier of sound sensing function as claimed in claim 1, it is characterized in that, described electronic switch (14) is triode.
6. have the air purifier of sound sensing function as claimed in claim 1, it is characterized in that, the model of described constant-current source chip (3) is PT4105.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592066.4U CN204943799U (en) | 2015-08-10 | 2015-08-10 | A kind of air purifier with sound sensing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592066.4U CN204943799U (en) | 2015-08-10 | 2015-08-10 | A kind of air purifier with sound sensing function |
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| Publication Number | Publication Date |
|---|---|
| CN204943799U true CN204943799U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520592066.4U Expired - Fee Related CN204943799U (en) | 2015-08-10 | 2015-08-10 | A kind of air purifier with sound sensing function |
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| Country | Link |
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| CN (1) | CN204943799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143943A (en) * | 2017-05-05 | 2017-09-08 | 长乐圆明工业设计有限公司 | A kind of indoor air-purification device |
-
2015
- 2015-08-10 CN CN201520592066.4U patent/CN204943799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143943A (en) * | 2017-05-05 | 2017-09-08 | 长乐圆明工业设计有限公司 | A kind of indoor air-purification device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180810 |