CN203702618U - Control circuit for fan - Google Patents
Control circuit for fan Download PDFInfo
- Publication number
- CN203702618U CN203702618U CN201420080650.7U CN201420080650U CN203702618U CN 203702618 U CN203702618 U CN 203702618U CN 201420080650 U CN201420080650 U CN 201420080650U CN 203702618 U CN203702618 U CN 203702618U
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Abstract
The utility model provides a control circuit for a fan to overcome shortcomings of the fan in use. The control circuit for the fan comprises a fan power source, a mode selection switch, a fan speed governor, a fan motor and an infrared control circuit; the infrared control circuit is composed of an infrared thermosensitive probe, an amplifier circuit and a relay circuit; the mode selection switch enables the fan power source to be connected with the fan speed governor by use of the relay circuit, and the opening and closing of the relay circuit are controlled by using the infrared thermosensitive probe and then connection and disconnection between the fan power source and the fan speed governor are realized. The control circuit for the fan has the beneficial effects that the structure of the control circuit is simple, the fan can be enabled to always rotate according to a traditional control mode, or the power can be actively cut off after a user leaves in such a manner of controlling the opening or closing of the relay circuit by using the infrared thermosensitive probe, and therefore, the energy source is saved, the loss of the fan is reduced and faults easily caused by long-term use of an electric appliance in a high-temperature environment are avoided.
Description
Technical field
The utility model belongs to fan manufacturing technology field, is specifically related to the control circuit for fan.
Background technique
Current commercially available fan speed-regulating major part is that such shortcoming is the waste of electric energy by regulating electric fan series connection winding to carry out governing speed, and each adjusting all needs artificial setting.In addition,, when user leaves for some reason, fan continues, in work, to take first electricity, second easily causes fan electromotor accelerated ageing.
Although there is on the market the fan with remote control unit, still exist user to leave temporarily or do not want to take the trouble and do not close in time the phenomenon of fan power supply, and user's urgent thing or leave temporarily after, forget the practical problem of returning to close fan power supply; On market, lack the initiatively easy structure fan control device of powered-down.
Model utility content
The problems referred to above while use for fan, this product provides a kind of control circuit for fan, can, in the time that personnel leave, automatically cut off fan power supply, and its concrete structure is as follows:
For the control circuit of fan, comprise fan power supply 1, fan governor 3 and fan electromotor 4, wherein fan governor 3 is connected with fan electromotor 4, in the rotating shaft of fan electromotor 4, is connected with flabellum; In addition, be also provided with mode selection switch 2 and infrared control circuit 5; Mode selection switch 2 is made up of knob, input port, the first output port and the second output port; By turning knob, the input port of mode selection switch 2 is connected with the first output port or the second output port;
The input end of mode selection switch 2 is connected with fan power supply 1, and the first output port of mode selection switch 2 is directly directly connected with fan governor 3, and the second output port of mode selection switch 2 is connected with fan governor 3 through infrared control circuit 5; Described infrared control circuit 5 is made up of three infrared thermosensitive probes 51, amplifier circuit 52 and relay circuits 53; Wherein, relay circuit 53 is circuit open in usual; The output terminal of three infrared thermosensitive probes 51 is connected with the input end of amplifier circuit 52 jointly; The output terminal of amplifier circuit 52 is connected with the controlled end of relay circuit 53; The current input terminal of relay circuit 53 is connected with the second output port of mode selection switch 2, and the current output terminal of relay circuit 53 is connected with fan governor 3;
When turning knob is connected the input port of mode selection switch 2 with the first output port, fan is in daily operating mode, and fan governor 3 is switched on and controlled fan electromotor 4 and move; When turning knob is connected the input port of mode selection switch 2 with the second output port, fan is in by the auxiliary operating mode of infrared control circuit 5 intelligence: the electrical signal producing after first thermal source being detected by infrared thermosensitive probe 51 is also delivered to amplifier circuit 52, the electrical signal of infrared thermosensitive probe 51 amplifies rear driving relay circuit 53 closures through amplifier circuit 52, and fan power supply 1 and fan governor 3 are conducted; Subsequently, fan electromotor 4 drives flabellum rotation under the control electric current of fan governor 3.
useful technique effect
This product circuit is simple in structure, can make fan rotate all the time by traditional control mode, can adopt again by the mode of infrared thermosensitive probe 51 control relay circuit 53 closure or openness, initiatively in the time that leaving, user cuts off the electricity supply, energy saving, reduce the loss of fan, avoid electrical equipment to use and incidental fault for a long time under high thermal environment.
This product also can, by the output current of wireless mode control fan governor 3, be realized the control of wind speed.
Brief description of the drawings
Fig. 1 is first embodiment's of the utility model circuit structure sketch.
Fig. 2 is second embodiment's of the utility model circuit structure sketch.
Fig. 3 is the circuit structure diagram of this product amplifier circuit 52.
Sequence number in figure is: fan power supply 1, mode selection switch 2, fan governor 3, fan electromotor 4, infrared control circuit 5, infrared thermosensitive probe 51, amplifier circuit 52, relay circuit 53, Bluetooth signal emitting circuit 61, Bluetooth signal receiving circuit 62, temperature adjustment knob unit 611, Bluetooth transmission circuit 612, bluetooth receiving circuit 621, the second amplifier circuit 622, the first amplifier OP1, the second amplifier OP2, the first adjustable resistance R1, the second resistance R 2, the 3rd resistance R 3, the 4th adjustable resistance R4, the 5th resistance R 5, the 6th resistance R 6, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, the tenth capacitor C 10.
embodiment
Now be described with reference to the accompanying drawings structural feature of the present utility model.
embodiment 1
Referring to Fig. 1, for the control circuit of fan, comprise fan power supply 1, fan governor 3 and fan electromotor 4, wherein fan governor 3 is connected with fan electromotor 4, in the rotating shaft of fan electromotor 4, is connected with flabellum; In addition, be also provided with mode selection switch 2 and infrared control circuit 5.
Mode selection switch 2 is made up of knob, input port, the first output port and the second output port; By turning knob, the input port of mode selection switch 2 is connected with the first output port or the second output port.
The input end of mode selection switch 2 is connected with fan power supply 1, and the first output port of mode selection switch 2 is directly directly connected with fan governor 3, and the second output port of mode selection switch 2 is connected with fan governor 3 through infrared control circuit 5.
Described infrared control circuit 5 is made up of three infrared thermosensitive probes 51, amplifier circuit 52 and relay circuits 53; Wherein, relay circuit 53 is circuit open in usual; The output terminal of three infrared thermosensitive probes 51 is connected with the input end of amplifier circuit 52 jointly; The output terminal of amplifier circuit 52 is connected with the controlled end of relay circuit 53; The current input terminal of relay circuit 53 is connected with the second output port of mode selection switch 2, and the current output terminal of relay circuit 53 is connected with fan governor 3.
Three infrared thermosensitive probes 51 are distributed on the base of fan.After arbitrary infrared thermosensitive probe 51 detects thermal source, produce corresponding electrical signal and be delivered to amplifier circuit 52, through amplifier circuit 52, the electrical signal that comes from infrared thermosensitive probe 51 receiving is amplified to rear driving relay circuit 53 closures, fan power supply 1 and fan governor 3 are conducted, and fan electromotor 4 drives flabellum rotation under the control electric current of fan governor 3.
Make fan power supply 1 directly be connected and transmit electricity with fan governor 3, or be connected through relay circuit 53 by mode selection switch 2, and move or quit work under infrared control circuit 5 is controlled.
Say further, the model of relay circuit 53 is HK4100F-DC5V-SH.This relay circuit 53 resistances ± 10%:120 Ω, coil power dissipation: 0.2W, voltage rating: DC5V, pick-up voltage: DC 3.75V, release voltage: DC 0.5V.
Referring to Fig. 3, the second amplifier OP2 that the first amplifier OP1 that amplifier circuit 52 is TLC2652 by six resistance, ten electric capacity, model, model are LM324 forms; Wherein, six resistance number consecutivelies are the first adjustable resistance R1, the second resistance R 2, the 3rd resistance R 3, the 4th adjustable resistance R4, the 5th resistance R 5, the 6th resistance R 6; Ten electric capacity number consecutivelies are the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, the tenth capacitor C 10; The first amplifier OP1 is provided with eight pins, is followed successively by first amplifier the first pin OP1P1, first amplifier the second pin OP1P2, the first amplifier the 3rd pin OP1P3, the first amplifier the 4th pin OP1P4, the first amplifier the 5th pin OP1P5, the first amplifier the 6th pin OP1P6, the first amplifier the 7th pin OP1P7, the first amplifier the 8th pin OP1P8; The second amplifier OP2 is provided with five pins, is followed successively by second amplifier the first pin OP2P1, second amplifier the second pin OP2P2, the second amplifier the 3rd pin OP2P3, the second amplifier the 4th pin OP2P4, the second amplifier the 5th pin OP2P5; Concrete annexation is:
The first amplifier the 3rd pin OP1P3 is connected with one end of the 6th resistance R 6, and the other end of the 6th resistance R 6 is connected with the output terminal of infra-red heat probe 51, one end of the first capacitor C 1, one end of the first adjustable resistance R1 respectively; The other end of the first capacitor C 1 is connected with adjustable side and the first amplifier the 6th pin OP1P6 of the first adjustable resistance R1 the other end, the first adjustable resistance R1 respectively; First amplifier the second pin OP1P2 is through the 6th capacitor C 6 ground connection, and the two ends of the 6th capacitor C 6 are parallel with the second resistance R 2; The first amplifier the 5th pin OP1P5 is connected with supply voltage VCC jointly with the first amplifier the 7th pin OP1P7; And the node between the first amplifier the 5th pin OP1P5 and supply voltage VCC is through the second capacitor C 2 ground connection; Amplifier the first pin OP1P1 is connected with power cathode VSS through the 3rd capacitor C 3, the first amplifier the 8th pin OP1P8 is connected with power cathode VSS through the 4th capacitor C 4, and the node between the first amplifier the 4th pin OP1P4 and power cathode VSS is connected with the first amplifier the 6th pin OP1P6 successively after the 5th capacitor C 5, the 7th capacitor C 7; Node ground connection between the 5th capacitor C 5 and the 7th capacitor C 7; The first amplifier the 6th pin OP1P6 is connected with second amplifier the second pin OP2P2 through the 3rd resistance R 3; The second amplifier the 3rd pin OP2P3 is connected with the second amplifier the 4th pin OP2P4 through the 4th adjustable resistance R4, and the node between the 4th adjustable resistance R4 and the second amplifier the 4th pin OP2P4 is connected with one end of supply voltage VCC, the 9th capacitor C 9 respectively, the other end ground connection of the 9th capacitor C 9; The second amplifier the 5th pin OP2P5 is through the 8th capacitor C 8 ground connection; Node between the 3rd resistance R 3 and second amplifier the second pin OP2P2 respectively with one end of the 5th resistance R 5, one end of the tenth capacitor C 10; The other end of the other end of the 5th resistance R 5 and the tenth capacitor C 10 is connected on second amplifier the first pin OP2P1 jointly; Second amplifier the first pin OP2P1 is the output terminal of amplifier circuit 52 and is connected with next stage circuit.
Say further the first amplifier OP1(chopped-off head amplifier in amplifier circuit 52) adopt Texas Instrument produce gradually zero steady wave mode amplifier TLC2652, this amplifier feature is antinoise, anti-drift ability is good, cheap and differential amplification structure.The first amplifier OP1 is responsible for receiving the tiny signal that infrared thermosensitive probe 51 is inputted.If when infrared thermosensitive probe (51) input voltage is higher, passing through in amplifier circuit 52 regulates the output of the adjustable first amplifier OP1 of mode of ratio between the ratio that the first adjustable resistance R1 and the 6th resistance R 6 hinder, the now gain A 1=of the first amplifier OP1 (the first adjustable resistance R51/ the 6th resistance R 6), and reverse with infrared input signal.Because infrared input signal has obvious skip phenomenon in the time moving, therefore be specially provided with the 4th capacitor C 4, the 3rd capacitor C 3 and in amplifier circuit (52), the 6th capacitor C 6, wherein, the 4th capacitor C 4 and the 3rd capacitor C 3 are memory cell, calibrate in order to offset peripheral, the 6th capacitor C 6 is filtering fluctuation signal, above-mentioned electric capacity can effectively be contained external environmental interference, especially can overcome amplifier drift, noise and common mode signal.In amplifier circuit 52, the second amplifier OP2 adopts LM324, and this amplifier is comparatively common, and circuit is simple, though be that four unit amplifiers can work independently, working power voltage scope is wide, can under 5V, work, and GB Gain Bandwidth can arrive 1.2MHZ.The amplification circuit of the second amplifier OP2 is inverting amplifier as seen from Figure 3, by regulating the 4th adjustable resistance R4, can regulate second level gain, gains as A2=(the 4th adjustable resistance R4/ the 3rd resistance R 3).Because infrared output signal is direct current signal, in order to expand lower frequency limit, need reduce amplifier gain separately, therefore adopt two-stage amplification circuit, the gain of amplifying through two-stage is like this A1*A2, more than the gain after amplifying through two-stage should reach 3V.
Relay circuit 53 uses MOSFET to control 5V relay, and model is HK4100F-DC5V-SH.MOSFET (insulating gate type field effect tube) uses 2N700, utilizes this field effect transistor input resistance high, and the feature that input current is little, can control 5V relay very easily.
embodiment 2
Referring to Fig. 2, for the control circuit of fan, comprise fan power supply 1, fan governor 3 and fan electromotor 4, between fan governor 3 and fan electromotor 4, be provided with temperature remote control device;
Temperature remote control device is made up of Bluetooth signal emitting circuit 61 and Bluetooth signal receiving circuit 62 two-part; Bluetooth signal emitting circuit 61 is made up of interconnective temperature adjustment knob unit 611 and Bluetooth transmission circuit 612, Bluetooth signal receiving circuit 62 is made up of interconnective bluetooth receiving circuit 621 and the second amplifier circuit 622, wherein, the current input terminal of the second amplifier circuit 622 is connected with the output terminal of fan governor 3, and the electric current import and export end of the second amplifier circuit 622 is connected with fan electromotor 4 input ends; The generation analogue signal of temperature adjustment knob unit 611 is passed to the second amplifier circuit 622, the second amplifier circuits 622 through Bluetooth transmission circuit 612, Bluetooth signal receiving circuit 62 successively and by analogue signal power, the electric current of being exported by fan governor 3 is carried out to linearity and adjust and be passed to fan electromotor 4.All the other structures are with the circuit structure described in embodiment 1; In the time that the input port in mode selection switch 2 is connected with the second output port, whether have people on the one hand if detecting fan work region by infrared thermosensitive probe 51, and then control relay circuit 53 initiatively connects or cuts off the electricity supply; On the other hand, be not more than the set speed conditions lower linear of fan governor 3 and regulating the rotating speed of fan by wireless mode.
Claims (4)
1. for the control circuit of fan, comprise fan power supply (1), fan governor (3) and fan electromotor (4), wherein fan governor (3) is connected with fan electromotor (4), in the rotating shaft of fan electromotor (4), is connected with flabellum;
It is characterized in that: be also provided with mode selection switch (2) and infrared control circuit (5); Mode selection switch (2) is made up of knob, input port, the first output port and the second output port; By turning knob, the input port of mode selection switch (2) is connected with the first output port or the second output port; The input end of mode selection switch (2) is connected with fan power supply (1), the first output port of mode selection switch (2) is directly directly connected with fan governor (3), and the second output port of mode selection switch (2) is connected with fan governor (3) through infrared control circuit (5); Described infrared control circuit (5) is made up of three infrared thermosensitive probes (51), an amplifier circuit (52) and a relay circuit (53); Wherein, relay circuit (53) is open in usual; The output terminal of three infrared thermosensitive probes (51) is connected with the input end of amplifier circuit (52) jointly; The output terminal of amplifier circuit (52) is connected with the controlled end of relay circuit (53); The current input terminal of relay circuit (53) is connected with the second output port of mode selection switch (2), and the electric current import and export end of relay circuit (53) is connected with fan governor (3).
2. the control circuit for fan as claimed in claim 1, is characterized in that: the model of relay circuit (53) is HK4100F-DC5V-SH.
3. the control circuit for fan as claimed in claim 1, is characterized in that: the second amplifier OP2 that the first amplifier OP1 that amplifier circuit (52) is TLC2652 by six resistance, ten electric capacity, model, model are LM324 forms; Wherein, six resistance number consecutivelies are the first adjustable resistance R1, the second resistance R 2, the 3rd resistance R 3, the 4th adjustable resistance R4, the 5th resistance R 5, the 6th resistance R 6; Ten electric capacity number consecutivelies are the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, the tenth capacitor C 10; The first amplifier OP1 is provided with eight pins, is followed successively by first amplifier the first pin OP1P1, first amplifier the second pin OP1P2, the first amplifier the 3rd pin OP1P3, the first amplifier the 4th pin OP1P4, the first amplifier the 5th pin OP1P5, the first amplifier the 6th pin OP1P6, the first amplifier the 7th pin OP1P7, the first amplifier the 8th pin OP1P8; The second amplifier OP2 is provided with five pins, is followed successively by second amplifier the first pin OP2P1, second amplifier the second pin OP2P2, the second amplifier the 3rd pin OP2P3, the second amplifier the 4th pin OP2P4, the second amplifier the 5th pin OP2P5; Concrete annexation is: the first amplifier the 3rd pin OP1P3 is connected with one end of the 6th resistance R 6, and the other end of the 6th resistance R 6 is connected with the output terminal of infra-red heat probe (51), one end of the first capacitor C 1, one end of the first adjustable resistance R1 respectively; The other end of the first capacitor C 1 is connected with adjustable side and the first amplifier the 6th pin OP1P6 of the first adjustable resistance R1 the other end, the first adjustable resistance R1 respectively; First amplifier the second pin OP1P2 is through the 6th capacitor C 6 ground connection, and the two ends of the 6th capacitor C 6 are parallel with the second resistance R 2; The first amplifier the 5th pin OP1P5 is connected with supply voltage VCC jointly with the first amplifier the 7th pin OP1P7; And the node between the first amplifier the 5th pin OP1P5 and supply voltage VCC is through the second capacitor C 2 ground connection; Amplifier the first pin OP1P1 is connected with power cathode VSS through the 3rd capacitor C 3, the first amplifier the 8th pin OP1P8 is connected with power cathode VSS through the 4th capacitor C 4, and the node between the first amplifier the 4th pin OP1P4 and power cathode VSS is connected with the first amplifier the 6th pin OP16 successively after the 5th capacitor C 5, the 7th capacitor C 7; Node ground connection between the 5th capacitor C 5 and the 7th capacitor C 7; The first amplifier the 6th pin OP1P6 is connected with second amplifier the second pin OP2P2 through the 3rd resistance R 3; The second amplifier the 3rd pin OP2P3 is connected with the second amplifier the 4th pin OP2P4 through the 4th adjustable resistance R4, and the node between the 4th adjustable resistance R4 and the second amplifier the 4th pin OP2P4 is connected with one end of supply voltage VCC, the 9th capacitor C 9 respectively, the other end ground connection of the 9th capacitor C 9; The second amplifier the 5th pin OP2P5 is through the 8th capacitor C 8 ground connection; Node between the 3rd resistance R 3 and second amplifier the second pin OP2P2 respectively with one end of the 5th resistance R 5, one end of the tenth capacitor C 10; The other end of the other end of the 5th resistance R 5 and the tenth capacitor C 10 is connected on second amplifier the first pin OP2P1 jointly; Second amplifier the first pin OP2P1 is the output terminal of amplifier circuit (52) and is connected with next stage circuit.
4. the control circuit for fan as claimed in claim 1, is characterized in that: be also provided with a temperature remote control device; Temperature remote control device is made up of Bluetooth signal emitting circuit (61) and Bluetooth signal receiving circuit (62) two-part; Bluetooth signal emitting circuit (61) is made up of interconnective temperature adjustment knob unit (611) and Bluetooth transmission circuit (612), Bluetooth signal receiving circuit (62) is made up of interconnective bluetooth receiving circuit (621) and the second amplifier circuit (622), in addition, the current input terminal of the second amplifier (622) is connected with the output terminal of fan governor (3), and the electric current import and export end of the second amplifier circuit (622) is connected with fan electromotor (4) input end; The generation analogue signal of temperature adjustment knob unit (611) is passed to the second amplifier circuit (622) through Bluetooth transmission circuit (612), Bluetooth signal receiving circuit (62) successively, and fan electromotor (4) is adjusted and be passed to the second amplifier circuit (622) by analogue signal power to carrying out linearity by the electric current of fan governor (3) output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080650.7U CN203702618U (en) | 2014-02-25 | 2014-02-25 | Control circuit for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080650.7U CN203702618U (en) | 2014-02-25 | 2014-02-25 | Control circuit for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702618U true CN203702618U (en) | 2014-07-09 |
Family
ID=51053069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080650.7U Expired - Fee Related CN203702618U (en) | 2014-02-25 | 2014-02-25 | Control circuit for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912832A (en) * | 2015-07-14 | 2015-09-16 | 邓光梅 | Intelligent fan control device and intelligent fan |
| CN105485041A (en) * | 2015-12-23 | 2016-04-13 | 广东环境保护工程职业学院 | Intelligent electric fan based on infrared induction |
-
2014
- 2014-02-25 CN CN201420080650.7U patent/CN203702618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912832A (en) * | 2015-07-14 | 2015-09-16 | 邓光梅 | Intelligent fan control device and intelligent fan |
| CN105485041A (en) * | 2015-12-23 | 2016-04-13 | 广东环境保护工程职业学院 | Intelligent electric fan based on infrared induction |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190225 |