CN220088815U - But intelligent control blowing temperature's hair-dryer circuit - Google Patents
But intelligent control blowing temperature's hair-dryer circuit Download PDFInfo
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- CN220088815U CN220088815U CN202320805986.4U CN202320805986U CN220088815U CN 220088815 U CN220088815 U CN 220088815U CN 202320805986 U CN202320805986 U CN 202320805986U CN 220088815 U CN220088815 U CN 220088815U
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- 238000007664 blowing Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 abstract description 27
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 230000001105 regulatory effect Effects 0.000 abstract description 11
- 239000003570 air Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 230000003699 hair surface Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 210000004761 scalp Anatomy 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model discloses a blower circuit capable of intelligently controlling blowing temperature, which comprises an electric heater, a first temperature detection module, a second temperature detection module and a control module, wherein the electric heater, the first temperature detection module and the second temperature detection module are electrically connected with the control module, the first temperature detection module detects the surface temperature of an object, the second temperature detection module detects the temperature of the electric heater, and the control module controls the output power of the electric heater according to the surface temperature of the object and/or the temperature of the electric heater, so that the output power of the electric heater is regulated according to the surface temperature of hair and the heating temperature of the electric heater, namely the temperature of the blower is intelligently controlled, thereby avoiding scalding the skin of a blown object and preventing the electric heater from being damaged due to overhigh heating temperature.
Description
Technical Field
The utility model belongs to the technical field of hair drying devices, and particularly relates to a blower circuit capable of intelligently controlling blowing temperature.
Background
Blowers have become one of the indispensable items in people's daily lives and are often used for drying and shaping hair for themselves, others (e.g., children), and even pets. At present, most blowers consist of heating wires, fans and keys for controlling cooling and heating air and gears, people control the cooling and heating air and the gears according to needs, but when the fans blow and dry for other people or pets, the temperature of the blown part cannot be controlled, so that the control distance of the blowers and the temperature of the electric heater cannot be well controlled, if the distance is too close or the temperature of the electric heater is too high, the blown object is easy to feel stabbing, even the blown part (such as scalp) is scalded, the distance is too far, the drying efficiency is low, and the blowing time can be too long.
To solve this problem, researchers have proposed blowers that control the power of the electric heater through temperature and humidity detection, such as application No. 201520406767.4, entitled: chinese patent utility model of blower capable of automatically adjusting temperature discloses: the temperature and humidity of the hair surface are sensed by the temperature sensor and the humidity sensor, the air outlet temperature of the blower is automatically adjusted, but in actual use, the hot air of the blower is blown to the hair to be dried, and the hot air is directly blown to the back of a user, so that the humidity of the hair surface is difficult to be detected by the humidity sensor, and the temperature of the hair surface of the user cannot be accurately detected by the ceramic temperature sensor used in the patent. Therefore, the temperature and humidity detected by the scheme disclosed in the patent are the temperature and humidity of the ambient air, the temperature and humidity of the hair surface are difficult to accurately detect, and as the shell of the hair dryer is made of plastic shells, insulation and weight reduction are ensured, if the temperature detected by the ceramic temperature sensor is lower, the electric heating component still operates at higher power, so that the blown hot air humidity is higher, and the skin of the blown object is possibly scalded. And the electric heating part runs at high power for a long time, which can lead to spontaneous combustion of the blower housing to generate fire.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a blower circuit capable of intelligently controlling the blowing temperature, which can automatically adjust the output power of an electric heater according to the surface temperature of an object to be blown and the temperature of the electric heater, thereby controlling the blowing temperature.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a blower circuit capable of intelligently controlling blower temperature, comprising: the electric heater, be used for detecting the first temperature detection module of object surface temperature, be used for detecting the second temperature detection module of electric heater temperature and be used for controlling electric heater output's control module according to object surface temperature and/or electric heater temperature, electric heater, first temperature detection module and second temperature detection module are connected with the control module electricity.
But in intelligent control's hair-dryer circuit of blowing temperature, first temperature detection module includes temperature detection unit and amplifying unit, temperature detection unit sets up in the air outlet department of hair-dryer to connect control module through amplifying unit.
But among the intelligent control blowing temperature's the hair-dryer circuit, temperature detection unit includes thermopile sensor, steady voltage source and first electric capacity, the 1 st foot of thermopile sensor is connected the amplification unit, is also connected the reference pole of steady voltage source through first electric capacity, and the 3 rd foot of thermopile sensor is connected the negative pole of steady voltage source, and the 2 nd foot of thermopile sensor is connected control module, and the 4 th foot of thermopile sensor is grounded.
IN the blower circuit capable of intelligently controlling the blowing temperature, the amplifying unit comprises an amplifying chip, a first resistor, a second resistor, a third resistor and a fourth resistor, an IN+ pin of the amplifying chip is connected with a 1 st pin of the thermopile sensor through the first resistor, an IN-pin of the amplifying chip is connected with a reference electrode of a voltage stabilizing source and a VDD power supply end through the second resistor, an OUT pin of the amplifying chip is also connected with one end of the fourth resistor through the third resistor, and the other end of the fourth resistor is connected with a control module.
In the blower circuit capable of intelligently controlling the blowing temperature, the thermopile sensor is arranged at the center of an air outlet of the blower.
But in intelligent control's hair-dryer circuit of blast temperature, second temperature detection module includes thermistor interface, fifth resistance, sixth resistance and second electric capacity, the one end of thermistor interface is connected VDD power supply end through fifth resistance, also is connected the one end of control module and second electric capacity through sixth resistance, the other end ground connection of second electric capacity.
But among the intelligent control blowing temperature's the hair-dryer circuit, still include power module, power module is including the zero crossing detection unit that is used for detecting alternating current zero crossing signal and the conversion unit that is used for converting alternating current into direct current, control module is all connected to zero crossing detection unit and conversion unit, when zero crossing detection unit detects zero crossing signal, control module control electric heater generates heat.
But in intelligent control's hair-dryer circuit of blowing temperature still includes the power regulation module that is used for controlling electric heater output, power regulation module establishes ties between electric heater and control module.
In but intelligent control's hair-dryer circuit of blast temperature, power adjustment module includes: the device comprises a bidirectional thyristor, an optocoupler, a seventh resistor, an eighth resistor and a ninth resistor, wherein a first anode of the bidirectional thyristor is connected with a conversion unit, a second anode of the bidirectional thyristor is connected with one end of an electric heater and is also connected with a 4 th pin of the optocoupler through the seventh resistor, a control electrode of the bidirectional thyristor is connected with a 3 rd pin of the optocoupler, a 1 st pin of the optocoupler is connected with a VDD power supply end, and a 2 nd pin of the optocoupler is connected with the VDD power supply end through the eighth resistor and is also connected with a control module through the ninth resistor.
But among the intelligent control hair-dryer circuit of blast temperature, still include the button module, the button module includes wind-force regulating key, temperature regulating key and/or intelligent temperature control on-off key, and wind-force regulating key, temperature regulating key, intelligent temperature control on-off key are connected with control module.
Compared with the prior art, the blower circuit capable of intelligently controlling the blowing temperature provided by the utility model comprises: the electric heater, first temperature detection module, second temperature detection module and control module, detect object surface temperature by first temperature detection module, detect electric heater temperature by second temperature detection module simultaneously to by control module according to object surface temperature and/or electric heater temperature control electric heater output, realized according to hair surface temperature and electric heater heating temperature regulation electric heater's output, the temperature of intelligent control hair-dryer promptly, thereby both avoided scalding by blowing object skin, prevent the electric heater and generate heat the too high temperature and damage yet.
Drawings
Fig. 1 is a schematic structural diagram of a blower provided by the present utility model.
Fig. 2 is a block diagram of a circuit structure of a blower capable of intelligently controlling the blowing temperature.
Fig. 3 is a schematic circuit diagram of a first temperature detection module of a blower capable of intelligently controlling a blowing temperature according to the present utility model.
Fig. 4 is a schematic circuit diagram of a control module and a second temperature detection module of the blower capable of intelligently controlling the blowing temperature.
Fig. 5 is a schematic circuit diagram of a power module and a power adjusting module of a blower capable of intelligently controlling the blowing temperature.
Fig. 6 is a schematic circuit diagram of a motor control module of a blower capable of intelligently controlling the blowing temperature according to the present utility model.
Fig. 7 is a schematic diagram of a non-isolated power switch module of a blower with intelligent control of the blowing temperature according to the present utility model.
Description of the reference numerals
Blower 10, electric heater L1, first temperature detection module 11, second temperature detection module 12, control module 13, temperature detection unit 111, amplifying unit 112, thermopile sensor U1, voltage stabilizing source U2, first capacitor C1, amplifying chip U3, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4, thermistor interface J1, fifth resistor R5, sixth resistor R6, second capacitor C2, power supply module 14, zero crossing detection unit 141, conversion unit 142, power adjustment module 15, bidirectional thyristor Q1, processor U4, optocoupler U5, seventh resistor R7, eighth resistor R8, ninth resistor R9, key module 16, wind power adjustment key S1, temperature adjustment key S2, intelligent temperature control switch S3, motor control module 17, switch power chip U6, first diode D1, second diode D2, voltage stabilizing diode D3, inductor L2, third capacitor C3
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 and 2, the circuit of the blower 10 capable of intelligently controlling the blowing temperature is arranged on a circuit board, and the circuit board can be arranged on a handle of the blower 10 or used for detecting the temperature of hair of a user when the temperature of the hair is low, reducing the temperature of hot air when the temperature of the hair is too high, and increasing the temperature of hot air when the temperature of the hair is low, so that the intelligent adjustment is realized, and the scalp burn and the stinging feeling are avoided.
The blower circuit includes: the electric heater L1, the first temperature detection module 11, the second temperature detection module 12 and the control module 13 are electrically connected with the control module 13.
The electric heater L1 is a heating wire, a heating tube and the like, the first temperature detection module 11 detects the surface temperature of an object, the second temperature detection module 12 detects the temperature of the electric heater L1, the control module 13 controls the output power of the electric heater L1 according to the surface temperature of the object and/or the temperature of the electric heater L1, and the output power of the electric heater L1 is regulated according to the surface temperature of hair and the heating temperature of the electric heater L1, namely the blowing temperature of a blower is intelligently controlled, so that the skin of a blown object is prevented from being scalded, and the damage caused by overhigh heating temperature of the electric heater L1 is prevented.
Referring to fig. 3 and fig. 4 together, the first temperature detection module 11 includes a temperature detection unit 111 and an amplifying unit 112, the temperature detection unit 111 is disposed at an air outlet of the blower and is connected to the control module 13 through the amplifying unit 112, the temperature detection unit 111 obtains temperature information of a surface (such as a hair surface) of the object to be detected, and converts the temperature information into a corresponding electrical signal, and after the electrical signal is amplified by the amplifying unit 112, the corresponding temperature data is identified by the control module 13.
The temperature detection unit 111 includes a thermopile sensor U1, a voltage stabilizing source U2, and a first capacitor C1, where a 1 st pin of the thermopile sensor U1 is connected to the amplifying unit 112 and is also connected to a reference electrode of the voltage stabilizing source U2 through the first capacitor C1, a 3 rd pin of the thermopile sensor U1 is connected to a cathode of the voltage stabilizing source U2, a 2 nd pin of the thermopile sensor U1 is connected to the control module 13, and a 4 th pin of the thermopile sensor U1 is grounded.
The voltage stabilizing source U2 can adopt TL431 three-terminal voltage stabilizing source U2 to provide stable working voltage for the thermopile sensor U1, and the first capacitor C1 is a filter capacitor to further ensure that the thermopile sensor U1 works stably and reliably. The thermopile sensor U1 is arranged at the center of an air outlet of the blower, can detect infrared rays on the surface of hair within a certain distance and convert the infrared rays into corresponding electric signals, and the center position of the air outlet of the blower is closer to other parts of the blower than the distance between the center position and an object to be measured. Since the thermopile sensor U1 is widely used in non-contact body temperature measurement products such as forehead temperature guns, it will be described in detail herein.
The amplifying unit 112 includes an amplifying chip U3, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4, where the amplifying chip U3 is an op amp chip of LM321, the first resistor R1 can adjust the amplification factor of the amplifying chip U3, and the third resistor R3 is a feedback resistor.
The IN+ pin of the amplifying chip U3 is connected with the 1 st pin of the thermopile sensor U1 through a first resistor R1, the IN-pin of the amplifying chip U3 is connected with the reference pole of the voltage stabilizing source U2 and the VDD power supply end through a second resistor R2, the IN-pin of the amplifying chip U3 is also connected with one end of the OUT pin of the amplifying chip U3 and one end of a fourth resistor R4 through a third resistor R3, the other end of the fourth resistor R4 is connected with the control module 13, an electric signal output by the thermopile sensor U1 is input from the IN-pin of the large chip of the first resistor R1, amplified by the amplifying chip U3 and then output to the control module 13 through the fourth resistor R4.
Optionally, the control module 13 includes a processor U4 of the FU6862L, where a P3.4 pin of the processor U4 is connected to the fourth resistor R4, and a P3.3 pin of the processor U4 is connected to a 2 nd pin of the thermopile sensor U1.
With continued reference to fig. 4, the second temperature detection module 12 includes a thermistor interface J1, a fifth resistor R5, a sixth resistor R6, and a second capacitor C2, where the thermistor interface J1 is used for connecting to a thermistor, one end of the thermistor interface J1 is connected to the VDD power supply end through the fifth resistor R5, and is also connected to the control module 13 (such as pin P2.6 of the processor U4) and one end of the second capacitor C2 through the sixth resistor R6, and the other end of the second capacitor C2 is grounded.
The fifth resistor R5 is a pull-up resistor, so that voltage difference exists between two ends of the thermistor, the thermistor is used for acquiring heating temperature of the electric heater L1 and converting the heating temperature into corresponding electric signals, the voltage is superimposed through the sixth resistor R6 and then input into the processor U4, and the processor U4 recognizes corresponding temperature data and performs corresponding control.
Referring to fig. 5, the blower circuit capable of intelligently controlling the blowing temperature provided by the utility model further comprises a power module 14, wherein the power module 14 comprises a zero-crossing detection unit 141 for detecting a zero-crossing signal of alternating current and a conversion unit 142 for converting the alternating current into direct current, the zero-crossing detection unit 141 and the conversion unit 142 are both connected with the control module 13, and the control module 13 controls the electric heater L1 to generate heat when the zero-crossing detection unit 141 detects the zero-crossing signal.
With continued reference to fig. 5, the blower circuit capable of intelligently controlling the blowing temperature provided by the utility model further includes a power adjustment module 15 for controlling the output power of the electric heater L1, wherein the power adjustment module 15 is connected in series between the electric heater L1 and the control module 13, and controls the output power of the power adjustment module 15 according to the adjustment signal output by the control module 13, so as to control the heating temperature, and in an embodiment, the control module 13 can control the on time of the zero crossing signal of the power supply to control the output power of the electric heater L1.
The power conditioning module 15 includes: the device comprises a bidirectional triode thyristor Q1, an optocoupler U5, a seventh resistor R7, an eighth resistor R8 and a ninth resistor R9, wherein a first anode of the bidirectional triode thyristor Q1 is connected with a conversion unit 142, a second anode of the bidirectional triode thyristor Q1 is connected with one end of an electric heater L1, a control electrode of the bidirectional triode thyristor Q1 is also connected with a 4 th pin of the optocoupler U5 through the seventh resistor R7, a control electrode of the bidirectional triode thyristor Q1 is connected with a 3 rd pin of the optocoupler U5, a 1 st pin of the optocoupler U5 is connected with a VDD power supply end, a 2 nd pin of the optocoupler U5 is connected with the VDD power supply end through the eighth resistor R8, and the control module 13 is also connected through the ninth resistor R9 (namely, a P0.1 pin of a processor U4).
In fig. 5, the P2 and P3 interfaces are used to connect two ends of the electric heater, the optocoupler U5 may use an optocoupler U5 chip of TLP265J, a control signal output by the P0.1 pin of the processor U4 enters the optocoupler U5 through the ninth resistor R9, and when the optocoupler U5 is turned on, the bidirectional thyristor Q1 is controlled to be turned on to enable the electric heater L1 to be powered on.
Referring to fig. 4, the blower circuit capable of intelligently controlling the blowing temperature provided by the utility model further includes a key module 16, wherein the key module 16 includes a wind power adjusting key S1, a temperature adjusting key S2 and/or an intelligent temperature control switch key S3, and the wind power adjusting key S1, the temperature adjusting key S2 and the intelligent temperature control switch key S3 are connected with the control module 13. The wind power regulating key S1 is used for controlling a wind power gear and is generally divided into three gears of high, medium and low, the temperature regulating key S2 is used for controlling the temperature of the electric heater L1 and is also respectively in three gears of high, medium and low (wherein the low gear can be a shutdown gear, namely, the motor and the electric heater L1 do not act), the intelligent temperature control switch key S3 is used for controlling the on-off of the intelligent temperature control function, when the intelligent temperature control function is not required to be started, the key intelligent temperature control switch key S3 can be pressed, the electric heater L1 does not work at the moment, even if the surface temperature of a blown object is higher than a set value, the output power of the electric heater L1 is kept unchanged, and the intelligent temperature control switch key S3 can be used for rapidly drying application scenes such as clothes at the moment.
Referring to fig. 6, the blower circuit capable of intelligently controlling the blower temperature provided by the present utility model further includes a motor control module 1713, wherein the motor control module 1713 is connected to the VSW pin, the VSV pin and the VSU pin of the processor U4, and is connected to the motor through IW, IV and IU, and the VSW pin, the VSV pin and the VSU pin of the processor U4 output control signals to control the motor.
Referring to fig. 7, the blower circuit capable of intelligently controlling the blower temperature according to the present utility model further includes a non-isolated power switch module (not numbered in the figure) for supplying power to the processor U4. The non-isolated power switch module comprises a switch power supply chip U6, a first diode D1, a second diode D2, a voltage stabilizing diode D3, an inductor L2 and a third capacitor C3.
The negative pole of first diode D1 connects switch power supply chip U6's VDD foot and inductance L2's one end, and zener diode D3's negative pole and inductance L2's the other end are connected to first diode D1's positive pole, also ground through third electric capacity C3, and this first diode D1 mainly plays the isolation effect, zener diode D3's positive pole and second diode D2's positive pole ground, inductance L2's one end and switch power supply chip U6's GND foot are connected to second diode D2's negative pole. The inductor L2 and the third capacitor C3 form an LC filter circuit, and the switching power supply chip U6 may adopt a low-power non-isolated switching power supply chip U6 with a model PN8054, and convert the voltage output by the conversion unit 142 into 15V voltage to supply power to the processor U4.
For a better understanding of the present utility model, the operation of the blower circuit of the present utility model is described in detail below with reference to fig. 1 to 7:
when the power plug of the blower is connected with the mains supply, the power module 14 works to convert 220V alternating current into direct current, when the wind power regulating key S1 is started, the motor works, when the zero crossing detection unit 141 detects a zero crossing signal of the alternating current, the power regulating module 15 enables the electric heater L1 to act, so that the blower blows hot air, the thermopile sensor U1 acquires the temperature of the surface of the hair of an object and feeds the temperature back to the processor U4, and when the temperature of the surface of the hair exceeds a set value (such as 42 ℃), the P0.1 pin of the processor U4 outputs a signal for regulating the function of the electric heater L1 to control the on time of the opto-coupler U5 and the controllable silicon so as to control the output power of the electric heater L1; meanwhile, the temperature of the electric heater L1 is detected by the thermistor, when the heating temperature of the electric heater L1 is too high, the P0.1 foot of the processor U4 is used for controlling the electric heater L1 to reduce the output power, so that the output hot air temperature is prevented from being too high, the scalp of a user is prevented from being burned, and the blower is prevented from being damaged.
In summary, the hair dryer circuit provided by the utility model can regulate the output power of the electric heater according to the surface temperature of hair and the heating temperature of the electric heater, namely, the temperature of the hair dryer is intelligently controlled, so that the skin of a blown object is prevented from being scalded, and the damage caused by the overhigh heating temperature of the electric heater is prevented. The circuit has simple structure and low cost.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.
Claims (10)
1. But intelligent control bloies hair-dryer circuit of temperature, its characterized in that includes: the electric heater, be used for detecting the first temperature detection module of object surface temperature, be used for detecting the second temperature detection module of electric heater temperature and be used for controlling electric heater output's control module according to object surface temperature and/or electric heater temperature, electric heater, first temperature detection module and second temperature detection module are connected with the control module electricity.
2. The blower circuit capable of intelligently controlling the blowing temperature according to claim 1, wherein the first temperature detection module comprises a temperature detection unit and an amplifying unit, and the temperature detection unit is arranged at an air outlet of the blower and is connected with the control module through the amplifying unit.
3. The blower circuit capable of intelligently controlling the blowing temperature according to claim 2, wherein the temperature detection unit comprises a thermopile sensor, a voltage stabilizing source and a first capacitor, a 1 st pin of the thermopile sensor is connected with the amplifying unit and is also connected with a reference pole of the voltage stabilizing source through the first capacitor, a 3 rd pin of the thermopile sensor is connected with a cathode of the voltage stabilizing source, a 2 nd pin of the thermopile sensor is connected with the control module, and a 4 th pin of the thermopile sensor is grounded.
4. The blower circuit capable of intelligently controlling the blowing temperature according to claim 3, wherein the amplifying unit comprises an amplifying chip, a first resistor, a second resistor, a third resistor and a fourth resistor, an IN+ pin of the amplifying chip is connected with a 1 st pin of the thermopile sensor through the first resistor, an IN-pin of the amplifying chip is connected with a reference electrode of a voltage stabilizing source and a VDD power supply end through the second resistor, an OUT pin of the amplifying chip is also connected with one end of the fourth resistor through the third resistor, and the other end of the fourth resistor is connected with the control module.
5. A blower circuit capable of intelligently controlling a blowing temperature according to claim 3, wherein the thermopile sensor is arranged at the center of an air outlet of the blower.
6. The blower circuit of claim 1, wherein the second temperature detection module comprises a thermistor interface, a fifth resistor, a sixth resistor and a second capacitor, wherein one end of the thermistor interface is connected to the VDD power supply end through the fifth resistor and is also connected to one end of the control module and the second capacitor through the sixth resistor, and the other end of the second capacitor is grounded.
7. The blower circuit capable of intelligently controlling blowing temperature according to claim 1, further comprising a power module, wherein the power module comprises a zero-crossing detection unit for detecting a zero-crossing signal of alternating current and a conversion unit for converting the alternating current into direct current, the zero-crossing detection unit and the conversion unit are both connected with the control module, and the control module controls the electric heater to generate heat when the zero-crossing detection unit detects the zero-crossing signal.
8. The intelligent controlled blowing temperature blower circuit of claim 6, further comprising a power adjustment module for controlling the output power of the electric heater, the power adjustment module being connected in series between the electric heater and the control module.
9. The intelligent controlled blower circuit according to claim 8, wherein the power adjustment module comprises: the device comprises a bidirectional thyristor, an optocoupler, a seventh resistor, an eighth resistor and a ninth resistor, wherein a first anode of the bidirectional thyristor is connected with a conversion unit, a second anode of the bidirectional thyristor is connected with one end of an electric heater and is also connected with a 4 th pin of the optocoupler through the seventh resistor, a control electrode of the bidirectional thyristor is connected with a 3 rd pin of the optocoupler, a 1 st pin of the optocoupler is connected with a VDD power supply end, and a 2 nd pin of the optocoupler is connected with the VDD power supply end through the eighth resistor and is also connected with a control module through the ninth resistor.
10. The intelligent controlled blowing temperature blower circuit according to claim 1, further comprising a key module, wherein the key module comprises a wind power adjusting key, a temperature adjusting key and/or an intelligent temperature control switch key, and the wind power adjusting key, the temperature adjusting key and the intelligent temperature control switch key are connected with the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805986.4U CN220088815U (en) | 2023-04-12 | 2023-04-12 | But intelligent control blowing temperature's hair-dryer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805986.4U CN220088815U (en) | 2023-04-12 | 2023-04-12 | But intelligent control blowing temperature's hair-dryer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220088815U true CN220088815U (en) | 2023-11-28 |
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ID=88881046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805986.4U Active CN220088815U (en) | 2023-04-12 | 2023-04-12 | But intelligent control blowing temperature's hair-dryer circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220088815U (en) |
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2023
- 2023-04-12 CN CN202320805986.4U patent/CN220088815U/en active Active
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