CN209012103U - A kind of temperature control automatic speed regulating fan circuit - Google Patents

A kind of temperature control automatic speed regulating fan circuit Download PDF

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Publication number
CN209012103U
CN209012103U CN201821471748.XU CN201821471748U CN209012103U CN 209012103 U CN209012103 U CN 209012103U CN 201821471748 U CN201821471748 U CN 201821471748U CN 209012103 U CN209012103 U CN 209012103U
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resistance
connect
module
voltage stabilizing
pin
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CN201821471748.XU
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Chinese (zh)
Inventor
胡沃康
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Pengjiang Jiangmen Win Win Technology Co Ltd
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Pengjiang Jiangmen Win Win Technology Co Ltd
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Abstract

The utility model discloses a kind of temperature control automatic speed regulating fan circuits, including the voltage stabilizing circuit module being sequentially connected electrically, multivibrator module and fan running module, the multivibrator module includes timer chip, first resistor, 4th resistance, 8th resistance, 4th capacitor, adjustable resistance and the 6th resistance, 6th resistance is connected with adjustable resistance, 4th resistance is connected with the 8th resistance, the control pin of the timer chip connect with the 6th resistance and adjustable resistance between tie point connection, the connection of the output end of adjustable resistance and voltage stabilizing circuit module is the first test point, the resetting pin of timer chip is connect with power voltage terminal, the electric discharge pin of timer chip connect with the 4th resistance and the 8th resistance between tie point connection.Temperature control automatic speed regulating fan circuit disclosed by the utility model, it is low in cost, the revolving speed of fan is automatically adjusted according to environment temperature, the circuit is simple and reliable.

Description

A kind of temperature control automatic speed regulating fan circuit
Technical field
The utility model relates to appliance circuit, in particular to a kind of temperature control automatic speed regulating fan circuit.
Background technique
With the continuous development of social science and technology, many household appliances in the market develop to intelligent direction, many tradition Electric appliance intelligence degree it is very high, such as chargeable DC powered fan also gradually moves towards intelligent, but market On direct current realize the revolving speed that fan is automatically adjusted according to environment temperature, many electric appliance manufacturing enterprises do not design low cost The revolving speed that fan is automatically adjusted according to environment temperature circuit, defect according to prior art, it is necessary to propose new solution Scheme.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of temperature control automatic speed regulating fan circuit, the circuit cost is low It is honest and clean, the revolving speed of fan is automatically adjusted according to environment temperature, the circuit is simple and reliable.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
A kind of temperature control automatic speed regulating fan circuit, including be sequentially connected electrically voltage stabilizing circuit module, multivibrator module And fan running module, the multivibrator module include timer chip, first resistor, the 4th resistance, the 8th resistance, Four capacitors, adjustable resistance and the 6th resistance, the 6th resistance are connected with adjustable resistance, and the 4th resistance is connected with the 8th resistance, described The control pin of timer chip connect with the 6th resistance and adjustable resistance between tie point connection, adjustable resistance and pressure stabilizing electricity The output end connection of road module is the first test point, and the resetting pin of timer chip is connect with power voltage terminal, timer The electric discharge pin of chip connect with the 4th resistance and the 8th resistance between tie point connection, the other end of the 8th resistance and timing The trigger point pin of device chip connects, the resetting locking pin of timer chip and the 4th capacitance connection, the 4th resistance it is another End is connect with one end of first resistor, and the tie point between the 4th resistance and first resistor is the second test point, timer chip Output signal pin connect with the input terminal of fan running module.
Further, the fan running module includes d.c. motor, the second diode, the first metal-oxide-semiconductor, the two or three pole Pipe, the 5th resistance and the 7th resistance, the anode of the d.c. motor are connect with the anode of voltage stabilizing circuit module, and d.c. motor is born Pole is connect with the drain electrode of the first metal-oxide-semiconductor, and one end of the source electrode of the first metal-oxide-semiconductor, the collector of the second triode and the 7th resistance is equal It is connect with ground terminal, the other end of the 7th resistance and one end of the 5th resistance are connect with the base stage of the second triode, the 5th resistance The other end connect with the grid of the first metal-oxide-semiconductor.
Further, the fan running module further includes the second capacitor and 3rd resistor, the d.c. motor and first The second capacitor of parallel connection and 3rd resistor between metal-oxide-semiconductor.
Further, the voltage stabilizing circuit module includes voltage stabilizing chip, battery unit, switch button, first diode, second Resistance and third capacitor, battery unit are connected with switch button, the input terminal of the voltage stabilizing chip be sequentially connected in series second resistance and First diode, the output end of voltage stabilizing chip are connected with third capacitor, the cathode of battery unit respectively with the ground terminal of voltage stabilizing chip And the other end of third capacitor is in parallel, switch button is in parallel with first diode.
By adopting the above technical scheme, first resistor, the first voltage-stabiliser tube and first capacitor provide work electricity for timer chip Pressure, timer chip and its peripheral circuit component form voltage stabilizing circuit module, the output signal pin output of timer chip The adjustable square-wave pulse signal of duty ratio;This signal controls the operating of fan running module, can when indoor environment temperature is higher Adjusting the resistance value of resistance reduces, and the voltage that timer chip controls pin increases, the output signal pin output side of timer chip The duty ratio of wave impulse improves, and control fan running module conduction time is elongated, and control fan running module runtime extends, The motor speed controlled in fan running module improves, to increase air quantity to reach cooling purpose;Conversely, working as indoor environment temperature When degree decline, the resistance value of adjustable resistance is increased, and the voltage that timer chip controls pin reduces, the output signal of timer chip The duty ratio that pin exports square-wave pulse reduces, and control fan running module runtime shortens, and controls in fan running module Motor speed revolving speed reduce, foregoing circuit realize according to environment temperature automatically adjust fan revolving speed purpose.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.
As shown in Figure 1, the utility model discloses a kind of temperature control automatic speed regulating fan circuit, it is steady including what is be sequentially connected electrically Volt circuit module 1, multivibrator module 2 and fan running module 3, multivibrator module 2 include timer chip U2, the One resistance R1, the 4th resistance R4, the 8th resistance R8, the 4th capacitor C4, adjustable resistance RT and the 6th resistance R6, the 6th resistance R6 with Adjustable resistance RT series connection, the 4th resistance R4 connect with the 8th resistance R8, the control pin and the 6th resistance R6 of timer chip U2 And the tie point connection between adjustable resistance RT series connection, it is that adjustable resistance RT is connect with the output end of voltage stabilizing circuit module 1 The resetting pin reset of one test point A, timer chip U2 are connect with power voltage terminal, the electric discharge pin of timer chip U2 Disc connect with the 4th resistance R4 and the 8th resistance R8 between tie point connection, the other end of the 8th resistance R8 and timer core The resetting locking pin of the trigger point pin TRI connection of piece U2, timer chip U2 is connect with the 4th capacitor C4, the 4th resistance R4 The other end connect with one end of first resistor R1, the tie point between the 4th resistance R4 and first resistor R1 be the second test point The output signal pin out of B, timer chip U2 are connect with the input terminal of fan running module 3.Adjustable resistance RT is negative temperature The thermistor of coefficient, first resistor R1 and first capacitor provide operating voltage for timer chip U2, timer chip U2 with Its peripheral circuit component forms voltage stabilizing circuit module 1, and the duty ratio of the output signal pin out output of timer chip U2 can The square-wave pulse signal of tune;This signal controls fan running module 3 and operates, when indoor environment temperature is higher, adjustable resistance RT Resistance value reduce, timer chip U2 control pin voltage increase, the output side output signal pin out of timer chip U2 The duty ratio of wave impulse improves, and control 3 conduction time of fan running module is elongated, and control 3 runing time of fan running module is prolonged Long, the motor speed controlled in fan running module 3 improves, to increase air quantity to reach cooling purpose;Conversely, when indoor ring Border is when the temperature drops, the resistance value of adjustable resistance RT increases, and the voltage that timer chip U2 controls pin reduces, timer chip U2 Output signal pin out output square-wave pulse duty ratio reduce, control 3 runing time of fan running module shorten, control Motor speed revolving speed in fan running module 3 reduces, and foregoing circuit realizes the revolving speed that fan is automatically adjusted according to environment temperature Purpose.
In addition, fan running module 3 includes d.c. motor M, the second diode D2, the first metal-oxide-semiconductor Q1, the second triode Q2, the 5th resistance R5 and the 7th resistance R7, the anode of d.c. motor M are connect with the anode of voltage stabilizing circuit module 1, d.c. motor M Cathode connect with the drain electrode of the first metal-oxide-semiconductor Q1, the source electrode of the first metal-oxide-semiconductor Q1, the collector of the second triode Q2 and the 7th electricity One end of resistance R7 is connect with ground terminal, and the other end of the 7th resistance R7 and one end of the 5th resistance R5 are with the second triode Q2's Base stage connection, the other end of the 5th resistance R5 are connect with the grid of the first metal-oxide-semiconductor Q1.Fan running module 3 further includes the second electricity Hold C2 and 3rd resistor R3, parallel connection the second capacitor C2 and 3rd resistor R3, timer between d.c. motor M and the first metal-oxide-semiconductor Q1 The output signal pin out output square-wave pulse of chip U2 passes through the 5th resistance R5, and the first metal-oxide-semiconductor Q1 makes fan motor direct current horse It is operated up to M;The running speed of fan motor d.c. motor M by timer chip output signal pin out output pulse signal Frequency and duty ratio determine.
Voltage stabilizing circuit module 1 includes voltage stabilizing chip U1, battery unit BT1, switch button SW1, first diode D1, the second electricity R2 and third capacitor C3 is hindered, battery unit BT1 connects with switch button SW1, and the input terminal of voltage stabilizing chip U1 has been sequentially connected in series second Resistance R2 and first diode D1, the output end of voltage stabilizing chip U1 are connected with third capacitor C3, the cathode of battery unit BT1 respectively with The ground terminal of voltage stabilizing chip U1 and the other end of third capacitor C3 are in parallel, and switch button SW1 is in parallel with first diode D1.It is above-mentioned Voltage regulator circuit provide a stable voltage value for the first test point A, improve the stability of entire circuit.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims (4)

1. a kind of temperature control automatic speed regulating fan circuit, it is characterised in that: including be sequentially connected electrically voltage stabilizing circuit module, multi-resonant Device module and fan running module are swung, the multivibrator module includes timer chip, first resistor, the 4th resistance, Eight resistance, the 4th capacitor, adjustable resistance and the 6th resistance, the 6th resistance are connected with adjustable resistance, the 4th resistance and the 8th resistance Series connection, the control pin of the timer chip connect with the 6th resistance and adjustable resistance between tie point connect, adjustable electric It is the first test point that resistance is connect with the output end of voltage stabilizing circuit module, and the resetting pin and power voltage terminal of timer chip connect Connect, the electric discharge pin of timer chip connect with the 4th resistance and the 8th resistance between tie point connection, the 8th resistance it is another The connection of the trigger point pin of one end and timer chip, the resetting locking pin of timer chip and the 4th capacitance connection, the 4th The other end of resistance and one end of first resistor connect, and the tie point between the 4th resistance and first resistor is the second test point, The output signal pin of timer chip is connect with the input terminal of fan running module.
2. temperature control automatic speed regulating fan circuit according to claim 1, it is characterised in that: the fan running module includes D.c. motor, the second diode, the first metal-oxide-semiconductor, the second triode, the 5th resistance and the 7th resistance, the d.c. motor is just The anode of pole and voltage stabilizing circuit module connects, and the cathode of d.c. motor is connect with the drain electrode of the first metal-oxide-semiconductor, the source of the first metal-oxide-semiconductor One end of pole, the collector of the second triode and the 7th resistance is connect with ground terminal, the other end of the 7th resistance and the 5th electricity One end of resistance is connect with the base stage of the second triode, and the other end of the 5th resistance is connect with the grid of the first metal-oxide-semiconductor.
3. temperature control automatic speed regulating fan circuit according to claim 2, it is characterised in that: the fan running module is also wrapped The second capacitor and 3rd resistor are included, the second capacitor of parallel connection and 3rd resistor between the d.c. motor and the first metal-oxide-semiconductor.
4. temperature control automatic speed regulating fan circuit according to claim 1, it is characterised in that: the voltage stabilizing circuit module includes Voltage stabilizing chip, battery unit, switch button, first diode, second resistance and third capacitor, battery unit are connected with switch button, The input terminal of the voltage stabilizing chip has been sequentially connected in series second resistance and first diode, and the output end of voltage stabilizing chip is connected with third Capacitor, the cathode of battery unit is in parallel with the other end of the ground terminal of voltage stabilizing chip and third capacitor respectively, switch button and first Diodes in parallel.
CN201821471748.XU 2018-09-07 2018-09-07 A kind of temperature control automatic speed regulating fan circuit Active CN209012103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821471748.XU CN209012103U (en) 2018-09-07 2018-09-07 A kind of temperature control automatic speed regulating fan circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821471748.XU CN209012103U (en) 2018-09-07 2018-09-07 A kind of temperature control automatic speed regulating fan circuit

Publications (1)

Publication Number Publication Date
CN209012103U true CN209012103U (en) 2019-06-21

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Application Number Title Priority Date Filing Date
CN201821471748.XU Active CN209012103U (en) 2018-09-07 2018-09-07 A kind of temperature control automatic speed regulating fan circuit

Country Status (1)

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CN (1) CN209012103U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110652659A (en) * 2019-08-12 2020-01-07 胡情 Control circuit of temperature control gust fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110652659A (en) * 2019-08-12 2020-01-07 胡情 Control circuit of temperature control gust fan

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