CN204283959U - A kind of intelligent temperature control fan controlling device - Google Patents
A kind of intelligent temperature control fan controlling device Download PDFInfo
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- CN204283959U CN204283959U CN201420725832.5U CN201420725832U CN204283959U CN 204283959 U CN204283959 U CN 204283959U CN 201420725832 U CN201420725832 U CN 201420725832U CN 204283959 U CN204283959 U CN 204283959U
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Abstract
A kind of intelligent temperature control fan controlling device, comprises power conversion unit, zero passage signal detection unit, main control unit, interchange control output unit and temperature detecting unit; Described power conversion unit is connected with main control unit; Described zero passage signal detection unit is connected with main control unit; Described interchange controls output unit and comprises optocoupler and controllable silicon, the input end of described optocoupler is connected with main control unit, the output terminal of optocoupler is connected with silicon controlled control input end, and silicon controlled power input connects ac power supply, and the power take-off of optocoupler connects fan; Described temperature detecting unit comprises thermopile sensor and operational amplifier, and the output terminal of described thermopile sensor is connected with the input end of described operational amplifier, and the output terminal of operational amplifier is connected with main control unit.This intelligent temperature control fan controlling device is easy for installation, and temperature control is accurate.
Description
Technical field
The utility model relates to rotation speed of the fan and regulates field, particularly relates to a kind of intelligent temperature control fan controlling device.
Background technique
Current cooling fan arrangement has all kinds of size and wind speed to supply customer selecting, be generally and make cooling effect good, all can select larger wind speed, but relative and next noise problem is the problem of can't get rid of.Even if there has been manual voltage regulating device, wind speed can be adjusted and made sometimes, because reducing wind speed and reach muting function, but non-automaticly still to have bothered; Even if add temperature controlling device, also because device to be cooled and fan have segment distance, install and control more complicated, more likely disturbed, therefore can not be used and eliminate.
Model utility content
Technical problem to be solved in the utility model is: a kind of control easy for installation accurate intelligent monitoring fan controlling device.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of intelligent temperature control fan controlling device, comprises power conversion unit, zero passage signal detection unit, main control unit, interchange control output unit and temperature detecting unit;
Described power conversion unit comprises 7805 three-terminal voltage-stabilizing chips, input end and the output terminal of 7805 three-terminal voltage-stabilizing chips are parallel with ceramic disc capacitor and electrochemical capacitor respectively, the input end of 7805 three-terminal voltage-stabilizing chips is connected with ac power supply, and the output terminal of 7805 three-terminal voltage-stabilizing chips is connected with main control unit;
Described zero passage signal detection unit comprises the first resistance, the second resistance, the 3rd resistance and the first triode, the base stage of described first triode connects the first resistance, the other end of the first resistance connects main control unit, collector electrode and described second resistance and the 3rd resistance of connecting between 7805 three-terminal voltage-stabilizing chip outputs of the first triode, the grounded-emitter connection of the first triode;
Described interchange controls output unit and comprises optocoupler and controllable silicon, the input end of described optocoupler is connected with main control unit, the output terminal of optocoupler is connected with silicon controlled control input end, and silicon controlled power input connects ac power supply, and the power take-off of optocoupler connects fan;
Described temperature detecting unit comprises thermopile sensor and operational amplifier, and the output terminal of described thermopile sensor is connected with the input end of described operational amplifier, and the output terminal of operational amplifier is connected with main control unit.
Further, described operational amplifier is LM358.
Further, described thermopile sensor is STP9CF55 chip, and the front end of STP9CF55 chip is provided with focusing lens.
Further, described operational amplifier is that LM358 comprises the first amplifier stage and the second amplifier stage, and described first amplifier stage and the second amplifier stage are connected in series, and the magnification factor of the first amplifier stage is 51 times, and the magnification factor of the second amplification group is 39 times.
Further, adjustment input unit is also comprised.
Further, described main control unit comprises single-chip microcomputer.
Further, an output pin of described main control unit is electrically connected two groups of light coupling relay simultaneously, and wherein one group of light coupling relay is often opened, and another group light coupling relay is normally closed.
Further, wherein one group of light coupling relay exports termination spare fans or audible-visual annunciator.
Further, the control switch be connected with described control unit is optocoupler.
The beneficial effects of the utility model are: the temperature control circuit being different from existing fan inside, segment distance is had with because of device to be cooled, install and control more complicated generation, the utility model intelligent temperature control fan controlling device utilizes contactless temperature probe unit, be detected in the temperature of fan front 50 centimetres of devices to be cooled, mat temperature variation, adjustment wind speed, can take into account cooling effect and quiet.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the utility model intelligent temperature control fan controlling device mode of execution;
Fig. 2 is the circuit diagram of the power conversion unit of the utility model intelligent temperature control fan controlling device;
Fig. 3 is the circuit diagram of the utility model intelligent temperature control fan controlling device zero passage signal detection unit;
Fig. 4 is the circuit diagram of the temperature detecting unit of the utility model intelligent temperature control fan controlling device;
Fig. 5 is the circuit diagram of the interchange control output unit of the utility model intelligent temperature control fan controlling device;
Fig. 6 is the circuit connection diagram of the light coupling relay be connected with main control unit in the utility model intelligent temperature control fan controlling device.
Label declaration:
10, power conversion unit; 20, zero passage signal detection unit; 30, ac power supply; 40, main control unit; 50, control output unit is exchanged; 60, fan; 70, temperature detecting unit.
Embodiment
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with mode of execution.
The design of the utility model most critical is: the temperature being detected device to be cooled in fan front certain distance by non-contact temperature probe unit controls rotation speed of the fan, reaches and takes into account cooling effect and quiet effect.
Please refer to Fig. 1 to Fig. 6, a kind of intelligent temperature control fan 60 controlling device, comprise power conversion unit 10, zero passage signal detection unit 20, main control unit 40, exchange control output unit 50 and temperature detecting unit 70;
Described power conversion unit 10 comprises 7805 three-terminal voltage-stabilizing chips, input end and the output terminal of 7805 three-terminal voltage-stabilizing chips are parallel with ceramic disc capacitor and electrochemical capacitor respectively, the input end of 7805 three-terminal voltage-stabilizing chips is connected with ac power supply 30, and the output terminal of 7805 three-terminal voltage-stabilizing chips is connected with main control unit 40;
Described zero passage signal detection unit 20 comprises the first resistance, the second resistance, the 3rd resistance and the first triode, the base stage of described first triode connects the first resistance, the other end of the first resistance connects main control unit 40, collector electrode and described second resistance and the 3rd resistance of connecting between 7805 three-terminal voltage-stabilizing chip outputs of the first triode, the grounded-emitter connection of the first triode;
Described interchange controls output unit 50 and comprises optocoupler and controllable silicon, the input end of described optocoupler is connected with main control unit 40, the output terminal of optocoupler is connected with silicon controlled control input end, and silicon controlled power input connects ac power supply 30, and the power take-off of optocoupler connects fan 60;
Described temperature detecting unit 70 comprises thermopile sensor and operational amplifier, and the output terminal of described thermopile sensor is connected with the input end of described operational amplifier, and the output terminal of operational amplifier is connected with main control unit 40.
Refer to figure bis-, power conversion unit 10 utilizes appearance group rectification circuit (D1, R1, C1, ZD1), by whole for Ac be direct current, profit again, again through power supply integrated regulator 7805 three-terminal voltage-stabilizing chip (IC, U103), to provide the DC electrical source needed for main control unit 40.
Refer to figure tri-, zero passage signal detection unit 20 utilizes the second resistance R2 and the 3rd resistance R5 dividing potential drop and the first triode (Q102) to amplify, and detects the zero passage signal of interchange, to I/O port the 14th pin of main control unit 40 (U1).
Refer to figure tetra-, temperature detecting unit 70 comprises the intergrated circuit STP9CF55 chip of four pin, wherein STP9CF55 chip the 2nd, 4 pin, it is a kind of temperature and resistance, when temperature variation resistance value will change, and the 1st, 3 pin are temperature sensings of light shield front end long distance, the effective coverage of its test is Celsius-38 to 520 degree.Because temperature sensing and the body self-temperature of light shield front end long distance have very large relation, therefore the two is encapsulated in one, main control unit 40 first must read the 2nd, 4 pin resistance of temperature detecting unit 70, then read the 1st, the voltage of 3 pin, just can calculate remote temperature.
Refer to figure five, exchange control output unit 50 and control by main control unit 40, when the OUTPUT1 of main control unit 40 is high level, make the elementary conducting of light lotus root intergrated circuit U101 through R6.Again because the elementary conducting of U101 makes the inner secondary conducting of light lotus root intergrated circuit, and make the DIAC conducting of controllable silicon U101, make Q101 conducting and then make fan 60 two ends have electricity, then fan 60 operates.
From foregoing description, the beneficial effects of the utility model are: this device not general simple and easy wired temp probe can only respond to fan 60 peripheral temperature, but thermopile sensor.The utility model intelligent temperature control fan 60 controlling device thermopile sensor (non-contact temperature sensor) detects the temperature of fan 60 front end thing to be cooled, and the rotating speed of fan 60 is adjusted according to the temperature detected, this sensor connects the diameter of the active block had at floating mocromembrane (545 microns) by 116 thermocouples.The performance that thermopile sensor provides nearly Johnson noise to limit, it can be the thermistor component that its nurse series resistors difficult to understand calculates, and has the lead-in wire being connected to ground connection, additionally provides the reference of inner TO packaging environment temperature.Therefore not only greatly facilitate the installation and use of fan 60 controlling device, also reach accurate temperature controlling and quiet effect simultaneously.
In the present embodiment, described main control unit 40 comprises single-chip microcomputer, completes control procedure by single-chip microcomputer.Certainly described main control unit 40 can adopt other micro-chip processors such as ARM, PLC in other embodiments.
Further, please refer to figure tetra-, described operational amplifier is LM358.
Further, described thermopile sensor is STP9CF55 chip, and the front end of STP9CF55 chip is provided with focusing lens.
Temperature detecting unit 70U8 receives front temperature through focusing lens, and actual light sensation intensity is often spend 0.0075 millivolt, after above-mentioned amplification circuit, passes to the susceptibility of often spending 14.92 millivolts.
Further, described operational amplifier is that LM358 comprises the first amplifier stage and the second amplifier stage, and described first amplifier stage and the second amplifier stage are connected in series, and the magnification factor of the first amplifier stage is 51 times, and the magnification factor of the second amplification group is 39 times.
Temperature detecting unit 70U8 voltage exporting change own is minimum, and every degree Celsius is only had 0.7 millivolt, not easily measures, and through U10 voltage amplification intergrated circuit (IC), is amplified.U10 has two groups of amplification circuit one amplification circuits to be determined by R8 and R10 multiple, and this device is adopted 510K and equaled 51 times than 10K.Its two amplification circuit is determined by R6 and R7 multiple, and this device is adopted 390K and equaled 39 times than 10K.Both be multiplied after multiple be 1989 times.
In one embodiment, main control unit 40 is connected with the mains just to control to exchange and is controlled output unit 50 with 100% power stage, next a remote temperature can be read through temperature detecting unit 70 every 3 seconds, if temperature still rises, if decline with regard to power stage 100% temperature, just falling ground power stage is 80%.If detect as temperature upper limit detecting unit, then with 100% power stage, following modulated input unit, the dutycycle signal come controls to export, and adjusts it between 80% to 100% again.
Main control unit 40 is connected with the mains and is just controlled alternating voltage control output unit with 100% power stage, and next each minute can read a remote temperature through temperature detecting unit 70, if temperature does not reach the upper limit, just reduces power stage 2-3%, minimum 80%.Make it reduce noise and reach quiet and energy-saving effect.
If temperature rises, just improve power stage 2-3%, the highest by 100%.Reach cooling-down effect.Increase the practicability of this device.
Further, adjustment input unit is also comprised.Described adjustment input unit is used for Non-follow control and exchanges control output unit 50.No matter be by temperature detecting unit 70 or after regulating input unit notice main control unit 40, how change and exchange control output unit 50, when it exports, silicon controlled conducting all must be made synchronous with zero passage signal, in order to avoid damage controllable silicon.Obtaining of zero passage signal is by R2, R3, R5 dividing potential drop gained in figure tri-, R2 and R3 is that 100K works as Q102 conducting when AC voltage is greater than 200V, and zero passage signal has low level notice U1.
Output (OUTPUT1) as figure six main control unit can drive two groups of light coupling relay simultaneously, and one group of normal open one group is often opened, and can allow user can temperature height judged result by this, incidentally controls other devices, as spare fans or acousto-optic warning.
As figure six and all kinds of control switch of figure five all adopt optocoupler electricity class, the output of this device and this device is made to be isolate, get an electric shock to avoid user, more because optical coupled switch operating voltage only needs DC2V lower than general relay, make that this device can (AC80V) still can regular event under lower operating voltage.This device operating voltage range is made to be AV75V to AV280V.
In sum, intelligent temperature control fan 60 controlling device that the utility model provides not only easy for installation, temperature control is accurate, also takes into account cooling effect and muting function.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. an intelligent temperature control fan controlling device, is characterized in that, comprises power conversion unit, zero passage signal detection unit, main control unit, interchange control output unit and temperature detecting unit;
Described power conversion unit comprises 7805 three-terminal voltage-stabilizing chips, input end and the output terminal of 7805 three-terminal voltage-stabilizing chips are parallel with ceramic disc capacitor and electrochemical capacitor respectively, the input end of 7805 three-terminal voltage-stabilizing chips is connected with ac power supply, and the output terminal of 7805 three-terminal voltage-stabilizing chips is connected with main control unit;
Described zero passage signal detection unit comprises the first resistance, the second resistance, the 3rd resistance and the first triode, the base stage of described first triode connects the first resistance, the other end of the first resistance connects main control unit, collector electrode and described second resistance and the 3rd resistance of connecting between 7805 three-terminal voltage-stabilizing chip outputs of the first triode, the grounded-emitter connection of the first triode;
Described interchange controls output unit and comprises optocoupler and controllable silicon, the input end of described optocoupler is connected with main control unit, the output terminal of optocoupler is connected with silicon controlled control input end, and silicon controlled power input connects ac power supply, and the power take-off of optocoupler connects fan;
Described temperature detecting unit comprises thermopile sensor and operational amplifier, and the output terminal of described thermopile sensor is connected with the input end of described operational amplifier, and the output terminal of operational amplifier is connected with main control unit.
2. a kind of intelligent temperature control fan controlling device according to claim 1, it is characterized in that, described operational amplifier is LM358.
3. a kind of intelligent temperature control fan controlling device according to claim 2, it is characterized in that, described thermopile sensor is STP9CF55 chip, and the front end of STP9CF55 chip is provided with focusing lens.
4. a kind of intelligent temperature control fan controlling device according to claim 3, it is characterized in that, described operational amplifier is that LM358 comprises the first amplifier stage and the second amplifier stage, described first amplifier stage and the second amplifier stage are connected in series, the magnification factor of the first amplifier stage is 51 times, and the magnification factor of the second amplification group is 39 times.
5. a kind of intelligent temperature control fan controlling device according to claim 1, is characterized in that, also comprise adjustment input unit.
6. a kind of intelligent temperature control fan controlling device according to claim 1, it is characterized in that, described main control unit comprises single-chip microcomputer.
7. a kind of intelligent temperature control fan controlling device according to claim 1, is characterized in that, an output pin of described main control unit is electrically connected two groups of light coupling relay simultaneously, and wherein one group of light coupling relay is often opened, and another group light coupling relay is normally closed.
8. a kind of intelligent temperature control fan controlling device according to claim 7, is characterized in that, wherein one group of light coupling relay exports termination spare fans or audible-visual annunciator.
9. a kind of intelligent temperature control fan controlling device according to claim 1, it is characterized in that, the control switch be connected with described control unit is optocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725832.5U CN204283959U (en) | 2014-11-26 | 2014-11-26 | A kind of intelligent temperature control fan controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420725832.5U CN204283959U (en) | 2014-11-26 | 2014-11-26 | A kind of intelligent temperature control fan controlling device |
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| Publication Number | Publication Date |
|---|---|
| CN204283959U true CN204283959U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420725832.5U Expired - Fee Related CN204283959U (en) | 2014-11-26 | 2014-11-26 | A kind of intelligent temperature control fan controlling device |
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| Country | Link |
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| CN (1) | CN204283959U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052890A (en) * | 2016-05-06 | 2016-10-26 | 努比亚技术有限公司 | Communication terminal and temperature detection method |
| WO2017133298A1 (en) * | 2016-02-02 | 2017-08-10 | 南通贝思特机械工程有限公司 | Control circuit for cooling fan for use in cabinet |
| CN112253519A (en) * | 2020-10-16 | 2021-01-22 | 珠海格力电器股份有限公司 | Fan control circuit, method, controller and electric equipment |
-
2014
- 2014-11-26 CN CN201420725832.5U patent/CN204283959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133298A1 (en) * | 2016-02-02 | 2017-08-10 | 南通贝思特机械工程有限公司 | Control circuit for cooling fan for use in cabinet |
| CN106052890A (en) * | 2016-05-06 | 2016-10-26 | 努比亚技术有限公司 | Communication terminal and temperature detection method |
| CN112253519A (en) * | 2020-10-16 | 2021-01-22 | 珠海格力电器股份有限公司 | Fan control circuit, method, controller and electric equipment |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150422 Termination date: 20161126 |