CN201448275U - Full-automatic human body induction exhaust fan - Google Patents
Full-automatic human body induction exhaust fan Download PDFInfo
- Publication number
- CN201448275U CN201448275U CN2009200614277U CN200920061427U CN201448275U CN 201448275 U CN201448275 U CN 201448275U CN 2009200614277 U CN2009200614277 U CN 2009200614277U CN 200920061427 U CN200920061427 U CN 200920061427U CN 201448275 U CN201448275 U CN 201448275U
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- CN
- China
- Prior art keywords
- infrared sensor
- pyroelectric infrared
- human body
- control chip
- body induction
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- Expired - Fee Related
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Abstract
The utility model discloses a full-automatic human body induction exhaust fan, which comprises a motor, a shell and a control circuit. The control circuit mainly comprises a control chip, a pyroelectric infrared sensor and a relay; a signal output terminal of the pyroelectric infrared sensor is connected with a signal input terminal of the control chip; a grounding terminal of the pyroelectric infrared sensor is grounded; a control signal output terminal of the control chip is connected with a base of a driving triode; a collector of the driving triode is connected with a coil voltage output terminal of the relay; an emitter of the driving triode is grounded; a power input terminal is connected with a working voltage input terminal of the pyroelectric infrared sensor, the working voltage input terminal of the control chip and the coil voltage output terminal of the relay respectively; and a contact switch of the relay is connected in series with a motor trunk. The full-automatic human body induction exhaust fan has the advantages that due to adoption of a high sensitive sensor, the exhaust fan has energy-saving and environmental-protection functions, and is convenient, and simultaneously can guarantee that the indoor air is fresh; and due to adoption of a high-performance operational amplifier and a high-performance delay processor, the situation of running idly without persons and electricity waste can be prevented.
Description
Technical field
The utility model relates to a kind of induced draft fan, relates in particular to a kind of full automatic body sense induced draft fan.
Background technique
Induced draft fan of the prior art all is to start manually or cut out.Manually boot induced draft fan after the user comes in, the people leaves manual-lock again.So not only labor intensive forgets that closing induced draft fan will cause power wastage if the people leaves.
The model utility content
It is a kind of with the automatic unlatching of infrared induction or the full automatic human body induction induced draft fan of closing that the utility model purpose is to provide.
The purpose of this utility model can realize by following scheme: a kind of full automatic body sense induced draft fan, comprise motor and casing, also comprise the control circuit that is used for closing automatically and opening motor, described control circuit mainly comprises: control chip is used to handle integrated information; Pyroelectric infrared sensor is used for the monitoring human infrared information; Relay is used for turn-offing or open the motor main line according to control signal; The signal output part of described pyroelectric infrared sensor connects the signal input part of control chip, grounding end ground connection; The control signal output terminal of control chip connects the driving transistor base, drives transistor collector and connects the relay coil voltage output terminal, drives the triode emitter grounding; Power input connects operating voltage input end, the operating voltage input end of control chip, the relay coil voltage output terminal of pyroelectric infrared sensor respectively; Relay contact switch is serially connected with the motor main line.The closure of described control chip by relay control motor main line with open circuit, realize the startup of induced draft fan or close.
The inductive probe front end of described pyroelectric infrared sensor also is provided with the lens that are used to improve monitoring range and focus signal.
Described lens adopt Fresnel lens.
It is BISS0001 type processor that described control chip adopts model.
It is PIRD203B type sensor that described pyroelectric infrared sensor adopts model.
Described Fresnel lens and pyroelectric infrared sensor are fixedly installed in the center portion of casing exhausting fence panel.
The utility model advantage is: adopted high sensor, can open automatically when human body enters the room induced draft fan, had energy-conserving and environment-protective function easily, guaranteed that again indoor air is clear simultaneously at once.Adopt high performance computing amplification and delay process device, after human body leaves, after 1 to 2 minute, close induced draft fan automatically, can prevent unmanned idle running waste electric power.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model;
Fig. 2 is the utility model Infrared lens mounting point schematic representation.
Embodiment
As shown in Figure 1, induced draft fan control circuit of the present utility model has mainly comprised pyroelectric infrared sensor, control chip, driving triode, relay and motor.Wherein pyroelectric infrared sensor, control chip, driving triode and relay have been formed the control circuit of automatic wind exhaust machine, are used to control the switching and the time-delay of induced draft fan.The contact switch of relay is located at the motor main line, and control circuit is by the main line work of relay control motor.The signal output part of pyroelectric infrared sensor connects the signal input part of control chip, and the signal output part of control chip connects the driving transistor base, drives triode and play on-off action in control circuit.
Whether pyroelectric infrared sensor detects and has human body to enter the detection room by being located at Fresnel lens before the infrared probe, after detecting infrared signal, transmit a signal to the signal input part of control chip by signal output part, control chip sends actuating signal and makes its work to driving transistor base, simultaneously turn-on control circuit.The relay coil that is serially connected in the control circuit main line gets electric work, triggers make contact motor main line to start the induced draft fan motor.
When human body leaves the detection room, sensor is less than infrared signal, the beginning computing relay time after control chip loses input signal.Can be set in retard time in 1～2 minute, still not have the infrared signal input later in time-delay, control chip can send shutdown signal switches off control circuit it to driving transistor base.Be serially connected in the relay coil dead electricity on control circuit main line, trigger the contact and disconnect the motor main line to close the induced draft fan motor.
In order to obtain good monitoring and control effect, pyroelectric infrared sensor adopts highly sensitive PIRD203B type sensor; This model sensor adopts pyroelectricity material temperature variant property detection infrared radiation that polarizes, and has adopted two sensor complementarity methods to suppress the interference that temperature is waftd and produced in order to improve working stability.
Control chip adopts operational amplifier integrated, voltage comparator, state controller and retard time function module such as timer the BISS0001 cake core, chip internal structure is as shown in Figure 2.Add a Fresnel lens before the inductive probe of pyroelectric infrared sensor, make detection range can reach 120 degree, 9 meters at the positive center of actual induction distance, about actual inductions distance of each 60 degree also can reach 3～4 meters, enough covering import and export scopes that will detect.Fresnel lens 1 and pyroelectric infrared sensor are fixedly installed in the center portion of casing exhausting fence panel 2, as shown in Figure 2.
Use the utility model can both have energy-conserving and environment-protective function easily, guaranteed that again indoor air is clear simultaneously, be widely used in the interior spaces such as kitchen, toilet, room and meeting room.
Claims (6)
1. a full automatic human body induction induced draft fan comprises motor and casing, it is characterized in that also comprise: be used for closing automatically and opening the control circuit of motor, described control circuit mainly comprises: control chip is used to handle integrated information; Pyroelectric infrared sensor is used for the monitoring human infrared information; Relay is used for turn-offing or open the motor main line according to control signal; The signal output part of described pyroelectric infrared sensor connects the signal input part of control chip, grounding end ground connection; The control signal output terminal of control chip connects the driving transistor base, drives transistor collector and connects the relay coil voltage output terminal, drives transistor emitter ground connection; Power input connects operating voltage input end, the operating voltage input end of control chip, the relay coil voltage output terminal of pyroelectric infrared sensor respectively; Relay contact switch is serially connected with the motor main line.
2. a kind of full automatic human body induction induced draft fan according to claim 1 is characterized in that the inductive probe front end of described pyroelectric infrared sensor also is provided with the lens that are used to improve monitoring range and focus signal.
3. a kind of full automatic human body induction induced draft fan according to claim 2 is characterized in that described lens adopt Fresnel lens.
4. a kind of full automatic human body induction induced draft fan according to claim 1 is characterized in that it is BISS0001 type processor that described control chip adopts model.
5. a kind of full automatic human body induction induced draft fan according to claim 1 is characterized in that it is PIRD203B type sensor that described pyroelectric infrared sensor adopts model.
6. according to claim 2 or 3 described a kind of full automatic human body induction induced draft fans, it is characterized in that described Fresnel lens and pyroelectric infrared sensor are fixedly installed in the center portion of casing exhausting fence panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200614277U CN201448275U (en) | 2009-07-29 | 2009-07-29 | Full-automatic human body induction exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200614277U CN201448275U (en) | 2009-07-29 | 2009-07-29 | Full-automatic human body induction exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448275U true CN201448275U (en) | 2010-05-05 |
Family
ID=42552989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200614277U Expired - Fee Related CN201448275U (en) | 2009-07-29 | 2009-07-29 | Full-automatic human body induction exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448275U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862120A (en) * | 2012-09-28 | 2013-01-09 | 南通久久液压机械制造有限公司 | Energy-saving structure of grinding machine |
| US9804032B2 (en) * | 2014-09-04 | 2017-10-31 | Seiko Epson Corporation | Detecting device and electronic apparatus |
| CN107740607A (en) * | 2017-11-27 | 2018-02-27 | 中山路得斯空调有限公司 | A kind of intelligent things public lavatory |
| CN113153792A (en) * | 2021-01-28 | 2021-07-23 | 上海磬采电力科技开发有限公司 | Temperature control fan and control system |
-
2009
- 2009-07-29 CN CN2009200614277U patent/CN201448275U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862120A (en) * | 2012-09-28 | 2013-01-09 | 南通久久液压机械制造有限公司 | Energy-saving structure of grinding machine |
| US9804032B2 (en) * | 2014-09-04 | 2017-10-31 | Seiko Epson Corporation | Detecting device and electronic apparatus |
| CN107740607A (en) * | 2017-11-27 | 2018-02-27 | 中山路得斯空调有限公司 | A kind of intelligent things public lavatory |
| CN113153792A (en) * | 2021-01-28 | 2021-07-23 | 上海磬采电力科技开发有限公司 | Temperature control fan and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20150729 |
|
| EXPY | Termination of patent right or utility model |