CN110632954A - Small-size space temperature control system - Google Patents

Abstract

The invention discloses a small space temperature control system which comprises an air conditioner fan shell, an air deflector, a switch, a control circuit, a control switch, a power plug, a ventilation pipe, fan blades, a motor, a water adding groove and the like. The invention provides a small space temperature control system which can well ensure that a product is automatically switched to a standby power supply to finish power supply when a main power supply cannot normally supply power, and can also automatically realize the starting and the closing of equipment according to the temperature change of the external environment, so that the equipment is more intelligent and convenient to use.

Description

Small-size space temperature control system

Technical Field

The invention belongs to the field of intelligent home furnishing, and particularly relates to a small space temperature control system.

Background

The air conditioner fan is a household appliance, and combines the advantages of an air conditioner and an electric fan, for example, the air conditioner blows machine wind, and is required to be in a closed environment, so that people feel uncomfortable easily, but the air conditioner fan can be used in an open environment; although the electric fan is natural wind, if the environment is very dirty, the blown wind is also very dirty, but most air conditioning fans have dust removal nets to filter air, and if a layer of photocatalyst is arranged on the dust removal nets, the effect of sterilization can be achieved, so that the requirement on the environment is not as strict as that of the fan. Meanwhile, the air-conditioning fan only has 60-80W of power when the air-conditioning fan starts to refrigerate, and the power of the air-conditioning fan is similar to that of a refrigerator, so that the air-conditioning fan does not consume electricity.

Based on the advantages, the air conditioning fan is gradually accepted by people, and the usage amount of the air conditioning fan is gradually increased. However, the intelligence of current air cooler is not high, and equipment can't make the judgement to external environment's temperature when using, and the operation of self can not be adjusted according to external temperature environment intelligently.

Disclosure of Invention

The invention aims to overcome the problems and provides a small space temperature control system which can well ensure that a product is automatically switched to a standby power supply to finish power supply when a main power supply cannot normally supply power and can also automatically realize the starting and the closing of equipment according to the temperature change of the external environment, so that the equipment is more intelligent and convenient to use.

The purpose of the invention is realized by the following technical scheme:

a small space temperature control system comprises an air conditioner fan shell, an air deflector, a switch, a control circuit, a control switch, a power plug, a ventilation pipe, a fan blade, a motor and a water adding groove, the front side of the air-conditioning fan shell is provided with an air outlet, the air deflector is arranged at the air outlet, the switch and the control switch are arranged at the top of the air-conditioning fan shell, and is connected with a power plug and a control circuit, the control circuit is arranged in the air conditioner fan shell and is connected with a motor, the motor is connected with a fan blade which is arranged in a ventilation pipe, the ventilation pipe is connected with the air outlet, the ventilation pipe is locally provided with a radiating fin, one end of the radiating fin is exposed to radiate heat, the other end of the radiating fin is soaked in the water adding groove, the water adding groove is arranged at the bottom of the air conditioner fan shell, the air conditioner fan shell is provided with an air inlet, and the air inlet is positioned below two sides of the air conditioner fan shell; the air conditioner fan shell is provided with a rear cover plate, and the rear cover plate is positioned below the air conditioner fan shell; the bottom of the air conditioner fan shell is provided with a roller; the control circuit also comprises a self-sensitive power supply control circuit connected with the power supply.

The self-sensitive power supply control circuit consists of a chip U1, a resistor R4 with one end connected with a TRIG pin of a chip U1 and the other end connected with a GND pin of a chip U1, a capacitor C2 with the anode connected with a CONT pin of a chip U1 and the cathode connected with the GND pin of a chip U1, a temperature judging circuit simultaneously connected with a VCC pin, a THRES pin and a GND pin of a chip U1, an intelligent control circuit simultaneously connected with a VCC pin, an OUT pin and a GND pin of a chip U1, a drive enhancing circuit simultaneously connected with the temperature judging circuit and the intelligent control circuit, two paths of power supply circuits connected with the intelligent control circuit, a drive buffer circuit simultaneously connected with the capacitor C2 and the drive enhancing circuit, and a trigger feedback circuit simultaneously connected with the drive enhancing circuit and the temperature judging circuit; the model of the chip U1 is NE555, the RESET pin of the chip U1 is connected with the VCC pin, and the THRES pin of the chip U1 is connected with the TRIG pin; the two-way power supply circuit comprises a triode VT101, a capacitor C102, a capacitor C103, a capacitor C101, a voltage stabilizing diode D103, a capacitor C105, a voltage stabilizing diode D105, a capacitor C105, a negative electrode C106, a negative electrode C102, a negative electrode C103, a negative electrode C102, a negative electrode, The other end of the resistor R109 is connected with the cathode of the capacitor C101, the sliding end of the resistor R104 is connected with the cathode of the capacitor C103, the anode of the capacitor C104 is connected with the cathode of the capacitor C101, the cathode of the capacitor C104 is connected with the collector of the triode VT101 through the diode D104, and the N pole of the diode D105 is connected with the cathode of the capacitor C104 through the relay K101; the N pole of the diode D102 is connected with the negative pole of the capacitor C102, the N pole of the diode D104 is connected with the negative pole of the capacitor C4, the P pole of the diode D105 and the positive pole of the capacitor C104 form a first power input end of the two-way power supply circuit, the positive pole of the capacitor C101 and the negative pole of the capacitor C101 form a second power input end of the two-way power supply circuit through the normally closed contact K101-1 of the relay K101 and the normally closed contact K101-2 of the relay K101, and the negative pole of the capacitor C104 and the positive pole of the capacitor C104 form a power output end of the two-way power supply circuit and are connected with the intelligent control circuit.

Preferably, the temperature determination circuit comprises a triode VT1, a triode VT2, a unidirectional thyristor VS1, a temperature sensitive resistor RT1 with one end connected with a collector of the triode VT2 and the other end connected with a control electrode of the unidirectional thyristor VS1, a resistor R1 connected in series between the control electrode and the anode of the unidirectional thyristor VS1, a sliding rheostat RP1 with one end connected with the anode of the unidirectional thyristor VS1, the other end connected with a collector of the triode VT1 and a sliding end connected with a base of the triode VT1, a resistor R3 with one end connected with an emitter of the triode VT2 and the other end connected with an emitter of the triode VT1, and a resistor R2 with one end connected with a collector of the triode VT1 and the other end connected with a GND pin of the chip U1; the cathode of the unidirectional thyristor VS1 is connected with the base of the triode VT2, the collector of the triode VT2 is connected with the VCC pin of the chip U1, and the emitter of the triode VT2 is connected with the THRES pin of the chip U2.

Preferably, the intelligent control circuit comprises a triode VT3, a diode D1 with an N pole connected with the base of the triode VT3 through a resistor R7 and a P pole connected with the OUT pin of the chip U1, a capacitor C1 with an anode connected with the collector of the triode VT3 through a resistor R8 and a cathode connected with the P pole of the diode D1, a diode D2 with an N pole connected with the emitter of the triode VT3 and a P pole connected with the cathode of the capacitor C2 through a resistor R9, and a relay K connected in parallel with the diode D2; the anode of the capacitor C1 is connected with the VCC pin of the chip U1, and the anode of the capacitor C1 and the P pole of the diode D2 form the input end of the intelligent control system.

Preferably, the driving enhancement circuit comprises a transistor VT4, a transistor Q1, a resistor R13 having one end connected to a base of the transistor VT4 and the other end connected to an anode of a capacitor C1 through an inductor L1, a resistor R6 and a resistor R5 in sequence, a capacitor C4 having an anode connected to a cathode of the capacitor C2 and a cathode connected to a connection point of the resistor R13 and the inductor L1, a diode D3 having one end connected to a cathode of the capacitor C4 and the other end connected to a ground through a capacitor C5 and a collector of the transistor VT4 at a sliding end, a resistor R5 having one end connected to an emitter of the transistor VT4 and the other end connected to a ground of the capacitor C5, a resistor R5 having one end connected to an emitter of the transistor VT5 and the other end connected to a gate of the transistor Q5, a capacitor C3 with the anode connected with the source of the MOS transistor Q1 and the cathode connected with the grid of the MOS transistor Q1 through a resistor R11, and a slide rheostat RP2 with one end connected with the cathode of the capacitor C3, the other end connected with the base of the triode VT4 and the sliding end connected with the source of the MOS transistor Q1 through a resistor R12; the negative electrode of the capacitor C5 is grounded, the drain of the MOS tube Q1 is connected with the GND pin of the chip U1, and the positive electrode of the capacitor C1 and the positive electrode of the capacitor C5 form the output end of the intelligent control system after passing through the normally closed contact K-1 of the relay K.

Further, the driving buffer circuit comprises a triode VT5, a triode VT6, a capacitor C6 with the negative electrode connected with the collector of the triode VT5 and the positive electrode connected with the base of the triode VT5 after passing through a resistor R15, a sliding rheostat RP4 with one end connected with the base of the triode VT5 and the other end connected with the collector of the triode VT6 after passing through a resistor R16 and the emitter of the triode VT5, a resistor R19 with one end connected with the emitter of the triode VT5 and the other end connected with the base of the triode VT6, a capacitor C7 with the positive electrode connected with the negative electrode of the capacitor C6 after passing through the resistor R18 and the negative electrode connected with the collector of the triode VT6, a diode D4 with the N electrode connected with the positive electrode of the capacitor C7 and the P electrode connected with the negative electrode of the capacitor C7 after passing through a resistor R20, and a resistor R17 with one end connected with the anode of the capacitor C6 and the other end connected with the anode of the capacitor C7; the base electrode of the triode VT5 is used as the input end of the driving buffer circuit, the emitter electrode of the triode VT6 is used as the output end of the driving buffer circuit, the base electrode of the triode VT5 is connected with the sliding end of the slide rheostat RP2, and the emitter electrode of the triode VT6 is connected with the negative electrode of the capacitor C2.

Still further, the trigger feedback circuit comprises an operational amplifier P1, an operational amplifier P2, a capacitor C8 having an anode connected to the positive input terminal of the operational amplifier P1 and a cathode connected to the negative input terminal of the operational amplifier P1 via a resistor R21, a resistor R22 connected in series between the positive input terminal and the output terminal of the operational amplifier P1, a resistor R23 having one end connected to the anode of the capacitor C8 and the other end connected to the cathode of the capacitor C8 via a resistor R24, a sliding rheostat 5 having an anode connected to the output terminal of the operational amplifier P1 via a resistor R25 and a cathode connected to the junction of the resistor R23 and the resistor R24, a resistor R26 having one end connected to the anode of the capacitor C9 and the other end connected to the output terminal of the operational amplifier P2, and a resistor R27 having one end connected to the negative input terminal of the operational amplifier P2 and the other end connected to the negative electrode of the capacitor C9; the negative electrode of the capacitor C9 is grounded, the input end of the operational amplifier P1 serves as the input end of the trigger feedback circuit, the output end of the operational amplifier P2 serves as the output end of the trigger feedback circuit, the output end of the operational amplifier P1 is connected with the collector of the triode VT1, and the output end of the operational amplifier P2 is connected with the gate of the MOS transistor Q1.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the power supply circuit is provided with two paths of power supply circuits, so that the product can be well prevented from being influenced by the damage of the main power supply circuit when in use, the working effect and the working stability of the product can be well improved, the adaptability of the product is expanded, and the power supply circuit is well loved by consumers.

(2) The invention can buffer when the system runs, better protect each component in the system, prolong the service life of the system for 2-3 years, automatically switch on and off the power supply to the air conditioning fan according to the external temperature, improve the intelligence of the equipment, improve the sensitivity of the system through the feedback of the signal, further improve the use effect of the system, switch off the power supply when the temperature is lower than the preset value, avoid the user from catching a cold when the temperature is too low, and better protect the body health of the user.

(3) When the air conditioner fans out air, the cooling fins in the ventilating duct can cool the air flow in the ventilating duct, so that the air blown out by the air conditioner fan is cooler; when the lamp is turned off at night for sleeping, the photoresistor can control the current of the control circuit, so that the motor is decelerated, the air outlet of the air conditioner fan is reduced, the proper temperature is provided for people, and the effects of saving energy and preventing cold in sleep at night are achieved.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent air conditioning fan according to the present invention;

fig. 2 is an external schematic view of an intelligent air conditioner fan according to the present invention.

Fig. 3 is a circuit configuration diagram of the intelligent control system of the present invention.

Fig. 4 is a circuit configuration diagram of the driving buffer circuit of the present invention.

Fig. 5 is a circuit configuration diagram of the trigger feedback circuit of the present invention.

Fig. 6 is a circuit configuration diagram of the two-way power supply circuit of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Examples

As shown in fig. 1-2, a small space temperature control system comprises an air conditioner fan casing 1, an air deflector 2, a switch 3, a control circuit, a control switch 4, a power plug 5, a ventilation pipe 7, a fan blade 8, a motor 9 and a water adding tank 10, wherein an air outlet 6 is arranged at the front side of the air conditioner fan casing 1, the air deflector 2 is installed at the air outlet 6, the switch 3 and the control switch 4 are installed at the top of the air conditioner fan casing 1 and are connected with the power plug 5 and the control circuit, the control circuit is arranged in the air conditioner fan casing 1 and is connected with the motor 9, the motor 9 is connected with the fan blade 8, the fan blade 8 is arranged in the ventilation pipe 7, the ventilation pipe 7 is connected with the air outlet 6, a part of the ventilation pipe 7 is provided with a heat sink, one end of the heat sink is exposed for heat dissipation, the other end of the heat sink is soaked in the, the air conditioner fan shell 1 is provided with an air inlet 11, and the air inlet 11 is positioned below two sides of the air conditioner fan shell 1; the air conditioner fan shell 1 is provided with a rear cover plate 12, and the rear cover plate 12 is positioned below the air conditioner fan shell 1; the bottom of the air conditioner fan shell 1 is provided with a roller 13; the control circuit also comprises a self-sensitive power supply control circuit connected with the power supply.

The power plug 5 is arranged at the bottom of the air conditioner fan shell 1. The material of the radiating fin comprises aluminum alloy, brass or bronze. Five or more blades of the fan blade 8 are arranged. Air conditioner fan casing 1 is provided with back shroud 2, back shroud 12 is located the below of air conditioner fan casing 1. The air inlet 11 is provided with a filter screen. The switch 3 comprises a tact switch; the model of the tact switch is KFC-801A. The control switch 4 is capable of adjusting the speed of the fan. The control circuit is provided with a photoresistor, and the photoresistor can control the current of the control circuit. The bottom of air conditioner fan housing 1 is provided with rollers 13. The water adding tank 10 can add water and/or ice blocks into the water adding tank 10 after the rear cover plate 12 is opened.

The switch 3 controls the air conditioner fan to be turned on and off. The control switch 4 functions to control the rotational speed of the motor 9. The power plug 5 is used for connecting with a power socket. The cooling fins can reduce the temperature inside the ventilation pipe 7 and can dissipate the temperature inside the ventilation pipe 7 into the water adding tank 10. The filter screen can filter the dust in the air.

The photosensitive resistor can reduce the control circuit current when light becomes dark, so that the rotating speed of the motor 9 is reduced, and the photosensitive resistor can increase the control circuit current when the light becomes bright so that the rotating speed of the motor 9 is increased.

The photoresistor comprises a photoresistor, which is a resistor made by utilizing the photoconductive effect of a semiconductor and with a resistance value changing with the intensity of incident light, and is also called a photoconductive detector; including incident light intensity, decreased resistance, weak incident light, increased resistance, and another incident light, weak resistance, decreased resistance, incident light intensity, increased resistance.

The working principle of the photoresistor is based on the internal photoelectric effect. Electrode leads are arranged at two ends of a semiconductor photosensitive material and are packaged in a tube shell with a transparent window to form the photosensitive resistor, and in order to increase the sensitivity, the two electrodes are usually made into a comb shape. The materials used to fabricate the photoresistor are mainly semiconductors such as metal sulfides, selenides, and tellurides. Usually, the method of coating, spraying and sintering is adopted to make a very thin photoresistor body and a comb-shaped ohmic electrode on an insulating substrate, lead wires are connected out and encapsulated in a sealed shell with a light-transmitting mirror, so as to prevent the sensitivity of the sealed shell from being affected by moisture. After the incident light disappears, the electron-hole pairs generated by the photon excitation are recombined, and the resistance value of the photoresistor is restored to the original value. Voltage is applied to the metal electrodes at two ends of the photoresistor, current passes through the photoresistor, and when the photoresistor is irradiated by light with a certain wavelength, the current is increased along with the increase of light intensity, so that photoelectric conversion is realized. The photoresistor has no polarity, is a pure resistor device, and can be applied with direct current voltage and alternating current voltage when in use. The conductivity of a semiconductor depends on the number of carriers in the conduction band of the semiconductor.

When the fan blade rotates, air flow is generated in the ventilation pipe, and the air flow is sent to the air outlet through a channel where the ventilation pipe and the radiating fins are in contact with the water or the ice blocks, so that the size of air outlet of the air conditioner fan outlet is controlled; when the solar air conditioner is used in the daytime, the incident light of the photosensitive resistor is strong, the resistance is increased, the control circuit controls the motor to accelerate, and the wind power of the air outlet is increased; when a user sleeps when turning off the lamp due to the fact that the temperature is higher in the daytime at night, the resistance of the photosensitive resistor on the control switch is reduced when incident light is weak, the rotating speed of the motor is reduced through the control circuit, and therefore cold air at the air outlet of the air conditioner is weakened, and the user is prevented from catching a cold when sleeping at night.

As shown in fig. 3-6, the self-sensitive power control circuit is composed of a chip U1, a resistor R4 with one end connected to the TRIG pin of the chip U1 and the other end connected to the GND pin of the chip U1, a capacitor C2 with an anode connected to the CONT pin of the chip U1 and a cathode connected to the GND pin of the chip U1, a temperature determination circuit connected to the VCC pin, the THRES pin and the GND pin of the chip U1, an intelligent control circuit connected to the VCC pin, the OUT pin and the GND pin of the chip U1, a driving enhancement circuit connected to the temperature determination circuit and the intelligent control circuit, a power supply circuit connected to the intelligent control circuit, a driving buffer circuit connected to the capacitor C2 and the driving enhancement circuit, and a trigger feedback circuit connected to the driving enhancement circuit and the temperature determination circuit.

The two-way power supply circuit is composed of a triode VT101, a relay K101, a resistor R102, a resistor R103, a resistor R104, a resistor R105, a resistor R106, a resistor R107, a resistor R108, a resistor R109, a voltage-stabilizing diode D101, a diode D102, a voltage-stabilizing diode D103, a diode D104, a diode D105, a slide rheostat RP101, a capacitor C102, a capacitor C103, a capacitor C104 and a capacitor C105.

When the three-phase current source is connected, the positive electrode of the capacitor C102 enters the resistor R101 and then is connected with the emitting electrode of the triode VT101, the negative electrode of the capacitor C103 is connected with the negative electrode of the capacitor C102 through the resistor R106, the negative electrode of the capacitor C102 is connected with the positive electrode of the capacitor C102 through the resistor R102, the positive electrode of the capacitor C101 is connected with the emitting electrode of the triode VT101, the negative electrode of the capacitor C101 is connected with the positive electrode of the resistor R103 through the resistor R105 and the diode D102 in sequence, the N electrode of the voltage stabilizing diode D101 is connected with the negative electrode of the capacitor C103, the P electrode of the voltage stabilizing diode D101 is connected with the negative electrode of the capacitor C101 through the resistor R107, the positive electrode of the capacitor C105 is connected with the negative electrode of the capacitor C102, the negative electrode of the capacitor C105 is connected with the collecting electrode of the triode VT101 through the resistor R108, one end of the slide rheostat 101 is connected with the negative electrode of the capacitor C105, and the other end of the capacitor C101, The sliding end is connected with the negative electrode of a capacitor C103 through a resistor R104, the positive electrode of the capacitor C104 is connected with the negative electrode of a capacitor C101, the negative electrode of the capacitor C104 is connected with the collector electrode of a triode VT101 through a diode D104, and the N electrode of a diode D105 is connected with the negative electrode of the capacitor C104 through a relay K101.

The N pole of the diode D102 is connected with the negative pole of the capacitor C102, the N pole of the diode D104 is connected with the negative pole of the capacitor C4, the P pole of the diode D105 and the positive pole of the capacitor C104 form a first power input end of the two-way power supply circuit, the positive pole of the capacitor C101 and the negative pole of the capacitor C101 form a second power input end of the two-way power supply circuit through the normally closed contact K101-1 of the relay K101 and the normally closed contact K101-2 of the relay K101, and the negative pole of the capacitor C104 and the positive pole of the capacitor C104 form a power output end of the two-way power supply circuit and are connected with the intelligent control circuit.

Two way supply circuit can be when the main power outage or damage can't carry out automatic switching power supply when normally supplying power to guarantee the normal operating of system, improved the operating stability of system greatly, can also support the normal use of product simultaneously after the outage, improved the emergent ability of product greatly, improved the functionality of product. The first power input end is generally connected with a mains supply, and the second power input end is connected with a built-in storage battery of the air conditioning fan, so that the two power input ends can be well guaranteed not to be powered off simultaneously.

The model of the chip U1 is NE555, the RESET pin of the chip U1 is connected with the VCC pin, and the THRES pin of the chip U1 is connected with the TRIG pin.

The temperature judging circuit is composed of a triode VT1, a triode VT2, a unidirectional thyristor VS1, a temperature sensitive resistor RT1, a resistor R1, a resistor R2, a resistor R3 and a slide rheostat RP 1.

When the temperature-sensitive resistor RT1 is connected, one end of the temperature-sensitive resistor RT1 is connected with the collector of the triode VT2, the other end of the temperature-sensitive resistor RT1 is connected with the control electrode of the unidirectional thyristor VS1, the resistor R1 is connected between the control electrode and the anode of the unidirectional thyristor VS1 in series, one end of the slide rheostat RP1 is connected with the anode of the unidirectional thyristor VS1, the other end of the slide rheostat RP1 is connected with the collector of the triode VT1, the sliding end of the slide rheostat R3 is connected with the base of the triode VT1, one end of the resistor R3 is connected with the emitter of the triode VT2, the other end of the resistor R1 is connected with the emitter of the.

The cathode of the unidirectional thyristor VS1 is connected with the base of the triode VT2, the collector of the triode VT2 is connected with the VCC pin of the chip U1, and the emitter of the triode VT2 is connected with the THRES pin of the chip U2.

The intelligent control circuit consists of a triode VT3, a capacitor C1, a resistor R7, a resistor R8, a resistor R9, a diode D1, a diode D2 and a relay K.

When the diode D1 is connected, the N pole of the diode D1 is connected with the base of the triode VT3 through the resistor R7, the P pole of the diode D1 is connected with the OUT pin of the chip U1, the positive pole of the capacitor C1 is connected with the collector of the triode VT3 through the resistor R8, the negative pole of the capacitor C1 is connected with the P pole of the diode D1, the N pole of the diode D2 is connected with the emitter of the triode VT3, the P pole of the capacitor C2 through the resistor R9, and the relay K is connected with the diode D2 in parallel.

The anode of the capacitor C1 is connected with the VCC pin of the chip U1, and the anode of the capacitor C1 and the P pole of the diode D2 form the input end of the intelligent control system.

The driving enhancement circuit is composed of a triode VT4, a MOS transistor Q1, an inductor L1, a resistor R5, a resistor R6, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a diode D3, a sliding rheostat RP2, a sliding rheostat RP3, a capacitor C3, a capacitor C4 and a capacitor C5.

When the diode is connected, one end of the resistor R13 is connected with the base of the triode VT4, the other end of the resistor R13 is connected with the anode of the capacitor C1 after sequentially passing through the inductor L1, the resistor R6 and the resistor R5, the anode of the capacitor C4 is connected with the cathode of the capacitor C2, the cathode of the capacitor C4 is connected with the connection point of the resistor R13 and the inductor L1, one end of the sliding rheostat RP3 is connected with the cathode of the capacitor C4, the other end of the sliding rheostat RP5 is grounded, the sliding end of the sliding rheostat RP4 is connected with the collector of the triode VT4, the P electrode of the diode D3 is connected with the P electrode of the diode D2, the N electrode of the diode D8253 is connected with the connection point of the capacitor C5 and the sliding rheostat RP3, one end of the resistor R14 is connected with the emitter of the triode VT4, the other end of the capacitor C5, one end of the resistor R10 is connected with, The negative electrode of the slide rheostat RP2 is connected with the negative electrode of the capacitor C3, the other end of the slide rheostat RP2 is connected with the base electrode of the triode VT4, and the sliding end of the slide rheostat RP2 is connected with the source electrode of the MOS transistor Q1 after passing through the resistor R12.

The negative electrode of the capacitor C5 is grounded, the drain of the MOS tube Q1 is connected with the GND pin of the chip U1, and the positive electrode of the capacitor C1 and the positive electrode of the capacitor C5 form the output end of the intelligent control system after passing through the normally closed contact K-1 of the relay K.

The driving buffer circuit is composed of a triode VT5, a triode VT6, a slide rheostat RP4, a diode D4, a capacitor C6, a capacitor C7, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19 and a resistor R20.

When the diode is connected, the negative electrode of the capacitor C6 is connected with the collector of the triode VT5, the positive electrode of the capacitor C17 is connected with the base of the triode VT5 after passing through the resistor R15, one end of the slide rheostat RP4 is connected with the base of the triode VT5 after passing through the resistor R16, the other end of the slide rheostat RP4 is connected with the collector of the triode VT6, the sliding end of the slide rheostat RP is connected with the emitter of the triode VT5, one end of the resistor R19 is connected with the emitter of the triode VT5, the other end of the resistor R6327 is connected with the base of the triode VT6, the positive electrode of the capacitor C7 is connected with the negative electrode of the capacitor C6 after passing through the resistor R18, the negative electrode of the resistor R6 is connected with the collector of the triode VT6, the N electrode of the diode D4 is connected with the positive electrode of the capacitor C7, the P.

The base electrode of the triode VT5 is used as the input end of the driving buffer circuit, the emitter electrode of the triode VT6 is used as the output end of the driving buffer circuit, the base electrode of the triode VT5 is connected with the sliding end of the slide rheostat RP2, and the emitter electrode of the triode VT6 is connected with the negative electrode of the capacitor C2.

The trigger feedback circuit is composed of an operational amplifier P1, an operational amplifier P2, a slide rheostat RP5, a capacitor C8, a capacitor C9, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, a resistor R26 and a resistor R27.

When the sliding rheostat RP5 is connected with the positive input end of the operational amplifier P2, the other end of the sliding rheostat RP 9 is connected with the negative electrode of the capacitor C9, the sliding end of the sliding rheostat RP 26 is connected with the positive electrode of the operational amplifier P2, the other end of the sliding rheostat RP2 is connected with the negative electrode of the capacitor C9, the sliding end of the sliding rheostat RP 9 is connected with the positive electrode of the capacitor C9, the other end of the sliding rheostat RP 26 is connected with the output end of the operational amplifier P2, one end of the resistor R27 is connected with the negative input end of the operational amplifier P2, and one end of the resistor R27 is connected with the negative input end of the operational amplifier P2, The other end is connected with the negative pole of the capacitor C9.

The negative electrode of the capacitor C9 is grounded, the input end of the operational amplifier P1 serves as the input end of the trigger feedback circuit, the output end of the operational amplifier P2 serves as the output end of the trigger feedback circuit, the output end of the operational amplifier P1 is connected with the collector of the triode VT1, and the output end of the operational amplifier P2 is connected with the gate of the MOS transistor Q1.

When the temperature-sensitive resistor is used, the resistance of the temperature-sensitive resistor can be changed according to the external temperature, and when the external temperature is lower than a preset value, the resistance of the civilized resistor is reduced to a critical value, so that the system sends a trigger signal and finally switches on the relay K to disconnect the normally closed contact of the relay K, the power supply to the air-conditioning fan is stopped, and the effect of closing the air-conditioning fan is achieved; and when the outside temperature exceeds the preset value, the relay K is disconnected, so that the system supplies power to the air conditioning fan.

The invention can buffer when the system runs, better protect each component in the system, prolong the service life of the system for 2-3 years, automatically switch on and off the power supply to the air conditioning fan according to the external temperature, improve the intelligence of the equipment, improve the sensitivity of the system through the feedback of the signal, further improve the use effect of the system, switch off the power supply when the temperature is lower than the preset value, avoid the user from catching a cold when the temperature is too low, and better protect the body health of the user.

As described above, the present invention can be preferably realized.

Claims (8)

1. A small-size space temperature control system characterized in that: the air conditioner fan comprises an air conditioner fan shell (1), an air deflector (2), a switch (3), a control circuit, a control switch (4), a power plug (5), a ventilation pipe (7), a fan blade (8), a motor (9) and a water adding groove (10), wherein an air outlet (6) is formed in the front side of the air conditioner fan shell (1), the air deflector (2) is installed at the air outlet (6), the switch (3) and the control switch (4) are installed at the top of the air conditioner fan shell (1) and are connected with the power plug (5) and the control circuit, the control circuit is arranged in the air conditioner fan shell (1) and is connected with the motor (9), the motor (9) is connected with the fan blade (8), the fan blade (8) is arranged in the ventilation pipe (7), the ventilation pipe (7) is connected with the air outlet (6), and cooling fins are arranged on the local part of the ventilation pipe, one end of each radiating fin is exposed for heat dissipation, the other end of each radiating fin is soaked in a water adding groove (10), the water adding groove (10) is arranged at the bottom of the air conditioner fan shell (1), the air conditioner fan shell (1) is provided with an air inlet (11), and the air inlets (11) are positioned below two sides of the air conditioner fan shell (1); the air-conditioning fan is characterized in that the air-conditioning fan shell (1) is provided with a rear cover plate (12), and the rear cover plate (12) is positioned below the air-conditioning fan shell (1); the bottom of the air conditioner fan shell (1) is provided with a roller (13); the control circuit also comprises a self-sensitive power supply control circuit connected with the power supply.

2. A compact space temperature control system as claimed in claim 1, wherein: the self-sensitive power supply control circuit consists of a chip U1, a resistor R4 with one end connected with a TRIG pin of a chip U1 and the other end connected with a GND pin of a chip U1, a capacitor C2 with the anode connected with a CONT pin of a chip U1 and the cathode connected with the GND pin of a chip U1, a temperature judging circuit simultaneously connected with a VCC pin, a THRES pin and a GND pin of a chip U1, an intelligent control circuit simultaneously connected with a VCC pin, an OUT pin and a GND pin of a chip U1, a drive enhancing circuit simultaneously connected with the temperature judging circuit and the intelligent control circuit, two paths of power supply circuits connected with the intelligent control circuit, a drive buffer circuit simultaneously connected with the capacitor C2 and the drive enhancing circuit, and a trigger feedback circuit simultaneously connected with the drive enhancing circuit and the temperature judging circuit; the model of the chip U1 is NE555, the RESET pin of the chip U1 is connected with the VCC pin, and the THRES pin of the chip U1 is connected with the TRIG pin; the two-way power supply circuit comprises a triode VT101, a capacitor C102, a capacitor C103, a capacitor C101, a voltage stabilizing diode D103, a capacitor C105, a voltage stabilizing diode D105, a capacitor C105, a negative electrode C106, a negative electrode C102, a negative electrode C103, a negative electrode C102, a negative electrode, The other end of the resistor R109 is connected with the cathode of the capacitor C101, the sliding end of the resistor R104 is connected with the cathode of the capacitor C103, the anode of the capacitor C104 is connected with the cathode of the capacitor C101, the cathode of the capacitor C104 is connected with the collector of the triode VT101 through the diode D104, and the N pole of the diode D105 is connected with the cathode of the capacitor C104 through the relay K101; the N pole of the diode D102 is connected with the negative pole of the capacitor C102, the N pole of the diode D104 is connected with the negative pole of the capacitor C4, the P pole of the diode D105 and the positive pole of the capacitor C104 form a first power input end of the two-way power supply circuit, the positive pole of the capacitor C101 and the negative pole of the capacitor C101 form a second power input end of the two-way power supply circuit through the normally closed contact K101-1 of the relay K101 and the normally closed contact K101-2 of the relay K101, and the negative pole of the capacitor C104 and the positive pole of the capacitor C104 form a power output end of the two-way power supply circuit and are connected with the intelligent control circuit.

3. A compact space temperature control system as claimed in claim 2, wherein: the driving buffer circuit comprises a triode VT5, a triode VT6, a capacitor C6 of which the negative electrode is connected with the collector of the triode VT5 and the positive electrode is connected with the base of the triode VT5 after passing through a resistor R15, a sliding rheostat RP4 of which one end is connected with the base of the triode VT5 after passing through a resistor R16 and the other end is connected with the collector of the triode VT6 and the sliding end is connected with the emitter of the triode VT5, a resistor R19 of which one end is connected with the emitter of the triode VT5 and the other end is connected with the base of the triode VT6, a capacitor C7 of which the positive electrode is connected with the negative electrode of the capacitor C6 after passing through a resistor R18, a diode D4 of which the N electrode is connected with the positive electrode of the capacitor C7 and the P electrode is connected with the negative electrode of the capacitor C7 after passing through a resistor, and a resistor R17 with one end connected with the anode of the capacitor C6 and the other end connected with the anode of the capacitor C7; the base electrode of the triode VT5 is used as the input end of the driving buffer circuit, and the emitter electrode of the triode VT6 is used as the output end of the driving buffer circuit.

4. A compact space temperature control system as claimed in claim 3, wherein: the trigger feedback circuit comprises an operational amplifier P1, an operational amplifier P2, a capacitor C8 with the anode connected with the positive input end of the operational amplifier P1 and the cathode connected with the negative input end of the operational amplifier P1 after passing through a resistor R21, a resistor R22 connected in series between the positive input end and the output end of the operational amplifier P1, a resistor R23 with one end connected with the anode of the capacitor C8 and the other end connected with the cathode of the capacitor C8 after passing through a resistor R24, a sliding rheostat RP5 with the anode connected with the output end of the operational amplifier P1 and the cathode connected with the connection point of the resistor R23 and the resistor R24 after passing through a resistor R25, a resistor R26 with one end connected with the anode of a capacitor C9 and the other end connected with the output end of the operational amplifier P2, and a resistor R27 having one end connected to the negative input terminal of the operational amplifier P2 and the other end connected to the negative electrode of the capacitor C9; the negative electrode of the capacitor C9 is grounded, the input terminal of the operational amplifier P1 is used as the input terminal of the trigger feedback circuit, and the output terminal of the operational amplifier P2 is used as the output terminal of the trigger feedback circuit.

5. The compact space temperature control system of claim 4, wherein: the temperature judging circuit consists of a triode VT1, a triode VT2, a unidirectional thyristor VS1, a temperature-sensitive resistor RT1 with one end connected with the collector of the triode VT2 and the other end connected with the control electrode of the unidirectional thyristor VS1, a resistor R1 connected between the control electrode and the anode of the unidirectional thyristor VS1 in series, a slide rheostat RP1 with one end connected with the anode of the unidirectional thyristor VS1, the other end connected with the collector of the triode VT1 and the slide end connected with the base of the triode VT1, a resistor R3 with one end connected with the emitter of the triode VT2 and the other end connected with the emitter of the triode VT1, and a resistor R2 with one end connected with the collector of the triode VT1 and the other end connected with the GND pin of the chip U1; the cathode of the unidirectional thyristor VS1 is connected with the base of the triode VT2, the collector of the triode VT2 is connected with the VCC pin of the chip U1, and the emitter of the triode VT2 is connected with the THRES pin of the chip U2.

6. A compact space temperature control system as claimed in claim 5, wherein: the intelligent control circuit consists of a triode VT3, a diode D1 with an N pole connected with a base electrode of the triode VT3 after passing through a resistor R7 and a P pole connected with an OUT pin of a chip U1, a capacitor C1 with an anode connected with a collector electrode of a triode VT3 after passing through a resistor R8 and a cathode connected with a P pole of the diode D1, a diode D2 with an N pole connected with an emitter electrode of the triode VT3 and a P pole connected with a cathode of the capacitor C2 after passing through a resistor R9, and a relay K connected with a diode D2 in parallel; the anode of the capacitor C1 is connected with the VCC pin of the chip U1, and the anode of the capacitor C1 and the P pole of the diode D2 form the input end of the intelligent control system.

7. A compact space temperature control system as claimed in claim 6, wherein: the driving boosting circuit comprises a triode VT4, a MOS tube Q1, a resistor R13 with one end connected with the base of the triode VT4 and the other end connected with the anode of a capacitor C1 after sequentially passing through an inductor L1, a resistor R6 and a resistor R5, a capacitor C4 with the anode connected with the cathode of the capacitor C2 and the cathode connected with the connection point of the resistor R13 and the inductor L1, a diode D3 with one end connected with the cathode of a capacitor C4, the other end grounded after passing through a capacitor C5 and the sliding end connected with the collector of the triode VT4, a resistor R3 with one end connected with the emitter of the triode VT3 and the other end connected with the grid of the MOS tube Q3, a resistor R3 with one end connected with the emitter of the triode VT3 and the other end connected with the ground of the MOS tube Q3, and a source 3 with the anode of the MOS tube Q3, A capacitor C3 with the negative electrode connected with the grid electrode of the MOS tube Q1 after passing through a resistor R11, and a slide rheostat RP2 with one end connected with the negative electrode of the capacitor C3, the other end connected with the base electrode of the triode VT4, and the slide end connected with the source electrode of the MOS tube Q1 after passing through a resistor R12; the negative electrode of the capacitor C5 is grounded, the drain of the MOS tube Q1 is connected with the GND pin of the chip U1, and the positive electrode of the capacitor C1 and the positive electrode of the capacitor C5 form the output end of the intelligent control system after passing through the normally closed contact K-1 of the relay K.

8. A compact space temperature control system as claimed in claim 7, wherein: the base electrode of the triode VT5 is connected with the sliding end of the sliding rheostat RP2, the emitter electrode of the triode VT6 is connected with the negative electrode of the capacitor C2, the output end of the operational amplifier P1 is connected with the collector electrode of the triode VT1, and the output end of the operational amplifier P2 is connected with the grid electrode of the MOS tube Q1.

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