CN208936260U - A kind of industrial fan heater control device - Google Patents
A kind of industrial fan heater control device Download PDFInfo
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- CN208936260U CN208936260U CN201821179386.7U CN201821179386U CN208936260U CN 208936260 U CN208936260 U CN 208936260U CN 201821179386 U CN201821179386 U CN 201821179386U CN 208936260 U CN208936260 U CN 208936260U
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Abstract
The utility model belongs to industrial fan heater field, and in particular to a kind of industrial fan heater control device, including industrial fan heater control module, main control module and alarm module；Main control module wirelessly controls industrial fan heater control module and alarm module.The main control module utilizes temp-sensitive sensor real-time monitoring environment temperature, sends alarm signal when temperature is lower than setting alarm temperature threshold value, when temperature sends enabling signal lower than setting industrial fan heater start-up temperature threshold value；It is sent when temperature is higher than setting alarm temperature threshold value and releases alarm signal, send stop signal when temperature is higher than setting industrial fan heater start-up temperature threshold value.The device detection environmental signal of the utility model is accurate, conveniently, distance it is remote, avoid high ambient temperature or low temperature in production and living and the accidents such as personal injury or property loss occurred.
Description
Technical field
The utility model belongs to industrial fan heater field, and in particular to a kind of industrial fan heater control device.
Background technique
Industrial fuel oil warm-air drier is using hot wind as medium, the high good working effect of the thermal efficiency, and heat dissipation area is big and heat dissipation is concentrated,
It is mainly used for the dedicated industry heating in the industrial or agricultural places such as plant floor, outdoor thermal insulation, cultivation base and fruits and vegetables planting greenhouse to set
It is standby.Fuel heater unit keeps safe distance with the presence of the danger such as fire, burn and scald, gassing, using Shi Yingyu combustibles, must
Air circulation and there must be enough air.
Traditional fuel heater unit mostly works in open type environment, and it is big that warm-air blower control detects environment temperature difference
Detection accuracy is low, will cause warm-air drier work long hours or frequent starting stop, there are certain danger.In addition some closeer
Warm-air drier use environment is separated with heating environment in the use environment of envelope, and it is not heating environment temperature that controller, which detects temperature,
Control system cannot normally work.
The prior art such as Chinese patent CN207515229U discloses a kind of industrial fan heater, including body, blinds are fanned, added
Heat pipe, blower, motor, rotation axis, electronic box, operation bench, display screen, regulation button, control switch, indicator light, external power supply, increasing
Wet device, temperature sensor and self-operated thermostatic controller, the body front end are equipped with blinds and fan and be flexibly connected with blinds fan, the machine
Body interior forward end is equipped with heating tube, and the blower is located at body support leg Internal back end, the blower rear end by rotation axis with
Motor is connected, and the body bottom end is equipped with electronic box, and the operation bench is located at electronic box left front end, and the display screen is located at operation bench
Above front end face, the regulation button is located at operation bench front end face lower left, and it is right that the control switch is located at operation bench front end face
Lower section, the indicator light are located on the right of console front end face, are connected below the external power supply and body left end, the support
Foot is fixedly connected with body lower end, and the humidifier is located above internal body right end, the temperature sensor lower end and body
Left upper end is connected, and the self-operated thermostatic controller left end is connected with temperature sensor right end and is connected with body upper end,
The blinds fan, heating tube, motor, electronic box, operation bench and indicator light are electrically connected with external power supply, the blinds fan, heating
Pipe and motor are electrically connected with operation bench.A kind of for another example electric warm-air machine disclosed in Chinese patent CN2114791U, by heating tube,
Blower and control circuit are constituted, and heating tube and power supply use star connection and delta connection, and a, electric warm-air machine exit are equipped with
Temperature sensor；B, temperature relay, digital display temperature regulator are connected in control circuit, their power input all leads to
It crosses intermediate relay and multiple contactors is connected, while their signal input part is exported with temperature sensor signal again and terminated
It is logical.But it is only capable of the control to warm-air drier heating temperature, is alarmed and is prompted when can not warm-air drier be overheated and is subcooled, also not
Warm-air drier heating process can be controlled.
Utility model content
The utility model for industrial fan heater control module temperature detection difference existing in actual use and it is long when
Between work or frequent starting stop problem, a kind of industrial fan heater control device is provided, can be worked industrial fan heater
The detection of temperature, and can be carried out control and alarm.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken is a kind of industrial fan heater control device,
Including industrial fan heater control module, main control module and alarm module；
Main control module includes single-chip microcontroller, button inputting circuits, temperature sensing circuit, display circuit and radio transmitter；
Button inputting circuits are coupled to single-chip microcontroller, for industrial warm wind to be arranged in the industrial fan heater control module of single-chip microcontroller
Alarm temperature threshold value in machine start-up temperature threshold value and alarm module；
Temperature sensing circuit is coupled to single-chip microcontroller, realizes environment temperature feedback in single-chip microcontroller, for single-chip microcontroller to environment
Temperature and industrial fan heater start-up temperature threshold value comparison control industrial fan heater control module in turn and open warm-air drier, are used for monolithic
Machine is to environment temperature and alarm temperature threshold value comparison and then controls alarm module alarm；
Display circuit is coupled to single-chip microcontroller, the ambient temperature information for displays temperature detection circuit feedback；
Radio transmitter couple single-chip microcontroller, single-chip microcontroller by wireless transmitting unit control industrial fan heater control module and
Alarm module；
One pin of single-chip microcontroller is grounded.
As the improved technical solution of the application, button inputting circuits include resistance R1, resistance R2, resistance R3, resistance R4,
Resistance R5, capacitor C2, contact switch S1, contact switch S2, contact switch S3 and contact switch S4；Wherein, one end of resistance R1
It is connected to power supply VCC；The other end of resistance R1 is coupled to single-chip microcontroller, series resistor R2 is followed by ground with contact switch S1, concatenates
Resistance R3 and contact switch S2 is followed by being followed by ground, series resistor R4 and contact switch S3 in ground, simultaneously series resistor R5 and touching
Point switch S4 is followed by ground.
As the improved technical solution of the application, temperature sensing circuit includes temp-sensitive sensor, divider resistance R6, current limliting electricity
Hinder R7 and capacitor C1；One end of divider resistance R6 is connected to power supply VCC, after the other end of divider resistance R6 concatenates temp-sensitive sensor
Single-chip microcontroller is coupled to after ground, concatenation current-limiting resistance R7 while being grounded after concatenating current-limiting resistance R7 and capacitor C1.
As the improved technical solution of the application, display circuit includes resistance R8, resistance R9, resistance R10, resistance R11, three
Pole pipe Q1, triode Q2 and 28 segment numeral pipes；One end of resistance R8 is connected to power supply VCC, after other end series resistor R9
It is coupled to single-chip microcontroller；The emitter of triode Q1 is coupled to power supply VCC, and collector is coupled to a pin of 28 segment numeral pipes,
Single-chip microcontroller is coupled to after base stage series resistor R9；The emitter of triode Q2 is coupled to power supply VCC, and collector is coupled to 28 sections
One pin of charactron, base stage are coupled to single-chip microcontroller after being serially connected with resistance R11；28 segment numeral pipes are further coupled to single-chip microcontroller.
As the improved technical solution of the application, radio transmitter include transmitting chip U1, resistance R12, resistance R13,
Capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor
C13, inductance L1 and inductance L2；
Ground connection after single-chip microcontroller, series resistor R13, concatenation electricity are coupled to after the ASK pin series resistor R12 of transmitting chip U1
It is grounded after holding C3；It is grounded after the XTLIN pin serial capacitance C4 of transmitting chip U1；The XTLOUT pin of transmitting chip U1 concatenates electricity
It is grounded after holding C5；Crystal oscillator is equipped between the XTLIN pin and XTLOUT pin of transmitting chip U1；Transmitting chip U1's
One end that capacitor C9 is grounded while be coupled to after power supply VCC, serial capacitance C8 is coupled to after PAOUT pin tandem electric inductance L1；
It is grounded, is grounded after serial capacitance C10, antenna ANT and capacitor C12, tandem electric inductance after the other end serial capacitance C13 of capacitor C9
It is grounded after L2, capacitor C11；The VSS leads ends of transmitting chip U1 are grounded；The VDD pin of transmitting chip U1 is coupled to power supply VCC；
One end of capacitor C6 is coupled to the VDD pin of power supply VCC Yu transmitting chip U1, other end ground connection simultaneously；One end of capacitor C7 is same
When be coupled to the VDD pin of power supply VCC Yu transmitting chip U1, other end ground connection.
As the improved technical solution of the application, industrial fan heater control module includes single-chip microcontroller, is coupled to single-chip microcontroller
Emergency stop circuit, input circuit, detection circuit, wireless receiving circuit, display circuit and fan heater control circuit；
Emergency stop circuit includes power supply VCC, resistance R26, resistance R25, contact switch S1；One end of resistance R26 is coupled to one
A power supply VCC, the other end is grounded after being coupled to single-chip microcontroller, series resistor R25 and electric shock switch S1, serial capacitance C8 is followed by simultaneously
Ground；
Input circuit includes rotary switch, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance
R11, resistance R12, capacitor C3, capacitor C4, capacitor C5 and capacitor C6；Rotary switch is coupled to another power supply VCC；The one of resistance R5
End is coupled to a pin of rotary switch, and the other end is connected to ground after being coupled to single-chip microcontroller and serial capacitance C3 simultaneously, and knob is opened
The pin closed also passes through series resistor R9 and is followed by ground；One end of resistance R6 is coupled to a pin of rotary switch, the other end
It is connected to ground after being coupled to single-chip microcontroller and serial capacitance C4 simultaneously, the pin of rotary switch also passes through series resistor R10 and is followed by
Yu Di；One end of resistance R7 is coupled to a pin of rotary switch, after the other end is coupled to single-chip microcontroller and serial capacitance C5 simultaneously
It is connected to ground, the pin of rotary switch also passes through series resistor R11 and is followed by ground；One end of resistance R8 is coupled to rotary switch
A pin, the other end is connected to ground after being coupled to single-chip microcontroller and serial capacitance C6 simultaneously, and the pin of rotary switch also passes through
Series resistor R12 is followed by ground；
Detection circuit includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, photosensitive biography
Sensor and temp-sensitive sensor；One end of resistance R1 is coupled to power supply VCC, and other end concatenation photosensitive sensor is followed by ground, simultaneously
It is coupled to single-chip microcontroller and simultaneously series resistor R2 after series resistor R2 and capacitor C1 is followed by ground；One end of resistance R3 couples
In power supply VCC, other end concatenation temp-sensitive sensor is followed by being coupled to single-chip microcontroller and simultaneously in ground, simultaneously after series resistor R4
Series resistor R4 and capacitor C2 are followed by ground；
Wireless receiving circuit includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C7 and resistance R13；Antenna ANT
It is coupled to the first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and coupling capacitance simultaneously
C7 is followed by ground；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；5th pin string of radiofrequency receiving chip
Single-chip microcontroller is coupled to after connecting resistance R13；
Display circuit includes two power supply VCC, light emitting diode D1, triode Q1, resistance R14, resistance R15, resistance
R16, resistance R17, resistance R18, triode Q2, triode Q3 and 28 segment numeral pipes；One power supply VCC concatenates light emitting diode
The collector of triode Q1 is coupled to after D1 and resistance R16；The emitter of triode Q1 is connected to ground；The base stage of triode concatenates electricity
Single-chip microcontroller is coupled to after resistance R14 while series resistor R15 is followed by ground；Another power supply VCC be connected to the emitter of triode Q2 with
It is connected to the emitter of triode Q3；Single-chip microcontroller, the current collection of triode Q2 are coupled to after the base stage series resistor R18 of triode Q2
Pole is coupled to a pin of 28 segment numeral pipes；Single-chip microcontroller, triode Q3 are coupled to after the base stage series resistor R17 of triode Q3
Collector be coupled to another pins of 28 segment numeral pipes；28 segment numeral pipes are further coupled to single-chip microcontroller；
Fan heater control circuit includes power supply VCC, diode D2, diode D3, diode D4, relay J1, relay
J2, relay J3, AC power source AC, high voltage package, oil valve, fan, triode Q4, triode Q5, triode Q6, resistance R19, electricity
Hinder R20, resistance R21, resistance R22, resistance R23 and resistance R24；The cathode of diode D2 is coupled to power supply VCC, diode D2
Anode is coupled to the collector of triode Q4；The coil sides of relay J1 be serially connected with power supply VCC and triode Q4 collector it
Between, contact sets side is serially connected between AC power source AC and high voltage package；The emitter of triode Q4 is grounded, base stage series resistor R19
After be coupled to single-chip microcontroller, be grounded after series resistor R20 simultaneously；The cathode of diode D3 is being coupled to power supply VCC, diode D3 just
Pole is coupled to the collector of triode Q5；The coil sides of relay J2 are serially connected between power supply VCC and the collector of triode Q5,
Contact sets side is serially connected between AC power source AC and oil valve；The emitter of triode Q5 is grounded, and is coupled after base stage series resistor R21
It is grounded after single-chip microcontroller while series resistor R22；The cathode of diode D4 is coupled to the anode coupling of power supply VCC, diode D4
In the collector of triode Q6；The coil sides of relay J3 are serially connected between power supply VCC and the collector of triode Q6, contact sets
Side is serially connected between AC power source AC and fan；The emitter of triode Q6 is grounded, and is coupled to monolithic after base stage series resistor R23
It is grounded after machine while series resistor R24.
As the improved technical solution of the application, alarm module includes wireless receiving circuit, input circuit and warning circuit；
Wireless receiving circuit includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C2 and resistance R3；Antenna ANT coupling
It is connected to the first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and coupling capacitance C2 simultaneously
It is followed by ground；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；5th pin of radiofrequency receiving chip concatenates
Single-chip microcontroller is coupled to after resistance R3；
Input circuit includes power supply VCC, resistance R2, resistance R1, contact switch S1 and capacitor C1；One end coupling of resistance R2
It is connected to power supply VCC, the other end is coupled to single-chip microcontroller and ground connection, serial capacitance C1 are followed by after series resistor R1 and electric shock switch S1
Ground；
Warning circuit includes power supply VCC, light emitting diode D1, resistance R9, triode Q1, resistance R4, resistance R5, buzzer
SPK1, resistance R8, triode Q2, resistance R6 and resistance R7；One end of light emitting diode D1 is coupled to power supply, other end concatenation
The collector of triode Q1 is coupled to after resistance R9；The emitter of triode Q1 is connected to ground；The base stage series resistor of triode Q1
Single-chip microcontroller is coupled to after R4, while base stage series resistor R5 is followed by ground；One end of buzzer SPK1 is coupled to power supply, the other end
The collector of triode Q2 is coupled to after series resistor R8；The emitter of triode Q2 is connected to ground；The base stage of triode Q2 concatenates
Single-chip microcontroller is coupled to after resistance R6, while base stage series resistor R7 is followed by ground.
Beneficial effect
The utility model proposes a kind of industrial fan heater control devices, have both wireless monitor, control and warning function.Master control
Module real-time radio send starting cease and desist order control to industrial fan heater control module warm-air drier work, wireless transmission alarm with
Alarm command is released to alarm module, avoids production and living high temperature or low temperature environment to things such as personal injury or property losses
Therefore occur.
The industrial fan heater control device of the utility model to ambient temperature signal detection precisely, conveniently, distance it is remote, improve
The security performance of industrial fan heater operation.
Detailed description of the invention
Fig. 1 is the structural block diagram of utility model device；
Fig. 2 is main control module circuit diagram described in the utility model；In figure: 1 button inputting circuits, 2 temperature sensing circuits, 3
Single-chip microcontroller, 4 display circuits, 5 radio transmitters, R1 resistance, R2 resistance, R3 resistance, R4 resistance, R5 resistance, R6 partial pressure electricity
Resistance, R7 current-limiting resistance, R8 resistance, R9 resistance, R10 resistance, R11 resistance, R12 resistance, R13 resistance, C1 capacitor, C2 capacitor, C3
Capacitor, C4 capacitor, C5 capacitor, C6 capacitor, C7 capacitor, C8 capacitor, C9 capacitor, C10 capacitor, C11 capacitor, C12 capacitor, C13 electricity
Appearance, S1 contact switch, S2 contact switch, S3 contact switch, S4 contact switch, Q1 triode, Q2 triode, U1 transmitting chip,
ANT antenna, L1 inductance, L2 inductance；
Fig. 3 is industrial fan heater control module circuit diagram described in the utility model；In figure: 1 emergency stop circuit, 2 input electricity
Road, 3 detection circuits, 4 wireless receiving circuits, 5 single-chip microcontrollers, 6 display circuits, 7 fan heater control circuits, VCC power supply, the contact S1 are opened
Pass, R1 resistance, R2 resistance, R3 resistance, R4 resistance, R5 resistance, R6 resistance, R7 resistance, R8 resistance, R9 resistance, R10 resistance,
R11 resistance, R12 resistance, R13 resistance, R14 resistance, R15 resistance, R16 resistance, R17 resistance, R18 resistance, R25 resistance, R26 electricity
Resistance, C1 capacitor, C2 capacitor, C3 capacitor, C4 capacitor, C5 capacitor, C6 capacitor, C7 capacitor, C8 capacitor, C9 capacitor, ANT antenna,
D1 light emitting diode, D2 diode, D3 diode, D4 diode, Q1 triode, Q2 triode, Q3 triode, Q4 triode,
Q5 triode, Q6 triode, J1 relay, J2 relay, J3 relay；
Fig. 4 is alarm module circuitry figure described in the utility model, in figure: 1 input circuit, 2 wireless receiving circuits, 3 monolithics
Machine, 4 warning circuits, ANT antenna, VCC power supply, R1 resistance, R2 resistance, R3 resistance, R4 resistance, R5 resistance, R6 resistance, R7 electricity
Resistance, R8 resistance, R9 resistance, S1 contact switch, SPK1 buzzer, C1 capacitor, C2 capacitor, D1 light emitting diode, Q1 triode,
Q2 triode.
Specific embodiment
To keep the purpose and technical solution of the utility model embodiment clearer, implement below in conjunction with the utility model
The attached drawing of example, is clearly and completely described the technical solution of the utility model embodiment.Obviously, described embodiment
It is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment obtained under the premise of being not necessarily to creative work belongs to practical
Novel protected range.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning will not be explained in an idealized or overly formal meaning and unless defined as here.
It " concatenates " herein and refers to and be connected in series to；
As shown in Figure 1, a kind of industrial fan heater control device provided by the present application, including main control module, alarm module and
Industrial fan heater control module (warm-air drier module is industrial fan heater control module herein in attached drawing 1).Main control module benefit
With temp-sensitive sensor real-time monitoring environment temperature, sent when temperature is lower than setting alarm temperature threshold value by wireless transmission circuit
Alarm signal, when temperature sends enabling signal lower than setting industrial fan heater start-up temperature threshold value；When temperature is higher than setting alarm
Stop alarm signal is sent when temperature threshold, sends stop signal when temperature is higher than setting industrial fan heater start-up temperature threshold value.
As shown in Fig. 2, main control module include single-chip microcontroller 3, button inputting circuits 1, temperature sensing circuit 2, display circuit 4 with
Radio transmitter 5；
Button inputting circuits 1 are coupled to single-chip microcontroller 3, industrial for being arranged in the industrial fan heater control module of single-chip microcontroller 3
Alarm temperature threshold value in warm-air drier start-up temperature threshold value and alarm module；Button inputting circuits include resistance R1, resistance R2, electricity
Hinder R3, resistance R4, resistance R5, capacitor C2, contact switch S1, contact switch S2, contact switch S3 and contact switch S4；Wherein,
One end of resistance R1 is connected to power supply VCC；After the other end of resistance R1 is coupled to single-chip microcontroller, series resistor R2 and contact switch S1
Ground, series resistor R3 and contact switch S2 is connected to be followed by being followed by concatenating simultaneously in ground in ground, series resistor R4 and contact switch S3
Resistance R5 and contact switch S4 are followed by ground.
Temperature sensing circuit 2 is coupled to single-chip microcontroller 3, realizes environment temperature feedback in single-chip microcontroller 3, for single-chip microcontroller to ring
Border temperature and industrial fan heater start-up temperature threshold value comparison control industrial fan heater control module in turn and open warm-air drier, for single
Piece machine is to environment temperature and alarm temperature threshold value comparison and then controls alarm module alarm；Temperature sensing circuit includes temperature sensitive sensing
Device, divider resistance R6, current-limiting resistance R7 and capacitor C1；One end of divider resistance R6 is connected to power supply VCC, and divider resistance R6's is another
One end concatenation temp-sensitive sensor after between ground, concatenation current-limiting resistance R7 after be coupled to single-chip microcontroller and meanwhile concatenate current-limiting resistance R7 and
It is grounded after capacitor C1.
Display circuit 4 is coupled to single-chip microcontroller 3, the ambient temperature information for displays temperature detection circuit feedback；Display electricity
Road includes resistance R8, resistance R9, resistance R10, resistance R11, triode Q1, triode Q2 and 28 segment numeral pipes；Resistance R8
One end be connected to power supply VCC, be coupled to single-chip microcontroller after other end series resistor R9；The emitter of triode Q1 is coupled to power supply
VCC, collector are coupled to a pin of 28 segment numeral pipes, are coupled to single-chip microcontroller after base stage series resistor R9；Triode Q2's
Emitter is coupled to power supply VCC, and collector is coupled to a pin of 28 segment numeral pipes, and base stage couples after being serially connected with resistance R11
In single-chip microcontroller；28 segment numeral pipes are further coupled to single-chip microcontroller.
Radio transmitter 5 couples single-chip microcontroller 3, and single-chip microcontroller 3 controls industrial fan heater by wireless transmitting unit and controls mould
Block and alarm module；Radio transmitter include transmitting chip U1, resistance R12, resistance R13, capacitor C3, capacitor C4, capacitor C5,
Capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, inductance L1 and inductance L2；
Ground connection after single-chip microcontroller, series resistor R13, concatenation electricity are coupled to after the ASK pin series resistor R12 of transmitting chip U1
It is grounded after holding C3；It is grounded after the XTLIN pin serial capacitance C4 of transmitting chip U1；The XTLOUT pin of transmitting chip U1 concatenates electricity
It is grounded after holding C5；Crystal oscillator is equipped between the XTLIN pin and XTLOUT pin of transmitting chip U1；Transmitting chip U1's
One end that capacitor C9 is grounded while be coupled to after power supply VCC, serial capacitance C8 is coupled to after PAOUT pin tandem electric inductance L1；
It is grounded, is grounded after serial capacitance C10, antenna ANT and capacitor C12, tandem electric inductance after the other end serial capacitance C13 of capacitor C9
It is grounded after L2, capacitor C11；The VSS leads ends of transmitting chip U1 are grounded；The VDD pin of transmitting chip U1 is coupled to power supply VCC；
One end of capacitor C6 is coupled to the VDD pin of power supply VCC Yu transmitting chip U1, other end ground connection simultaneously；One end of capacitor C7 is same
When be coupled to the VDD pin of power supply VCC Yu transmitting chip U1, other end ground connection.
In addition, a pin of single-chip microcontroller is grounded.
When temperature sensing circuit 2 detects environment temperature lower than setting alarm temperature threshold value, single-chip microcontroller generates alarm signal；
When environment temperature is lower than setting industrial fan heater start-up temperature threshold value, single-chip microcontroller generates enabling signal.Relevant signal is formed
Alarm module and industrial fan heater control module are transferred to by radio transmitter 5 afterwards, radio transmitter 5 is mainly by emitting
Chip U1 and peripheral interlock circuit composition, single-chip microcomputer signal emit core by I/O port transmission to the port ASK of transmitting chip U1
Radiofrequency signal is emitted by the port PAOUT of transmitting chip U1 after piece U1 processing information, by antenna after peripheral circuit filters
Emit amplified signal.Similarly, when environment temperature is higher than setting alarm temperature threshold value, main control module is sent to alarm module to be stopped
Alarm signal, when environment temperature is higher than setting industrial fan heater start-up temperature threshold value, main control module controls mould to industrial fan heater
Block sends stop signal.
As shown in figure 3, (the warm-air drier module in attached drawing 1 is industrial fan heater herein to industrial fan heater control module
Control module) it include single-chip microcontroller 5, it is coupled to emergency stop circuit 1, input circuit 2, detection circuit 3, the wireless receiving electricity of single-chip microcontroller 5
Road 4, display circuit 6 and fan heater control circuit 7；
Emergency stop circuit 1 includes power supply VCC, resistance R26, resistance R25, contact switch S1；One end of resistance R26 is coupled to one
A power supply VCC, after the other end is coupled to ground connection after single-chip microcontroller, series resistor R25 and electric shock switch S1, simultaneously serial capacitance C8
Ground connection；
Input circuit 2 includes rotary switch, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance
R11, resistance R12, capacitor C3, capacitor C4, capacitor C5 and capacitor C6；Rotary switch is coupled to another power supply VCC；The one of resistance R5
End is coupled to a pin of rotary switch, and the other end is connected to ground after being coupled to single-chip microcontroller and serial capacitance C3 simultaneously, and knob is opened
The pin closed also passes through series resistor R9 and is followed by ground；One end of resistance R6 is coupled to a pin of rotary switch, the other end
It is connected to ground after being coupled to single-chip microcontroller and serial capacitance C4 simultaneously, the pin of rotary switch also passes through series resistor R10 and is followed by
Yu Di；One end of resistance R7 is coupled to a pin of rotary switch, after the other end is coupled to single-chip microcontroller and serial capacitance C5 simultaneously
It is connected to ground, the pin of rotary switch also passes through series resistor R11 and is followed by ground；One end of resistance R8 is coupled to rotary switch
A pin, the other end is connected to ground after being coupled to single-chip microcontroller and serial capacitance C6 simultaneously, and the pin of rotary switch also passes through
Series resistor R12 is followed by ground；
Detection circuit 3 includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, photosensitive biography
Sensor and temp-sensitive sensor；One end of resistance R1 is coupled to power supply VCC, and other end concatenation photosensitive sensor is followed by ground, simultaneously
It is coupled to single-chip microcontroller and simultaneously series resistor R2 after series resistor R2 and capacitor C1 is followed by ground；One end of resistance R3 couples
In power supply VCC, other end concatenation temp-sensitive sensor is followed by being coupled to single-chip microcontroller and simultaneously in ground, simultaneously after series resistor R4
Series resistor R4 and capacitor C2 are followed by ground；
Wireless receiving circuit 4 includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C7 and resistance R13；Antenna
ANT is coupled to the first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and couples simultaneously
Capacitor C7 is followed by ground；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；The 5th of radiofrequency receiving chip draws
Single-chip microcontroller is coupled to after foot series resistor R13；
Display circuit 6 includes two power supply VCC, light emitting diode D1, triode Q1, resistance R14, resistance R15, resistance
R16, resistance R17, resistance R18, triode Q2, triode Q3 and 28 segment numeral pipes；One power supply VCC concatenates light emitting diode
The collector of triode Q1 is coupled to after D1 and resistance R16；The emitter of triode Q1 is connected to ground；The base stage of triode concatenates electricity
Single-chip microcontroller is coupled to after resistance R14 while series resistor R15 is followed by ground；Another power supply VCC be connected to the emitter of triode Q2 with
It is connected to the emitter of triode Q3；Single-chip microcontroller, the current collection of triode Q2 are coupled to after the base stage series resistor R18 of triode Q2
Pole is coupled to a pin of 28 segment numeral pipes；Single-chip microcontroller, triode Q3 are coupled to after the base stage series resistor R17 of triode Q3
Collector be coupled to another pins of 28 segment numeral pipes；28 segment numeral pipes are further coupled to single-chip microcontroller；
Fan heater control circuit 7 includes power supply VCC, diode D2, diode D3, diode D4, relay J1, relay
J2, relay J3, AC power source AC, high voltage package, oil valve, fan, triode Q4, triode Q5, triode Q6, resistance R19, electricity
Hinder R20, resistance R21, resistance R22, resistance R23 and resistance R24；The cathode of diode D2 is coupled to power supply VCC, diode D2
Anode be coupled to the collector of triode Q4；The coil sides of relay J1 are serially connected with the collector of power supply VCC Yu triode Q4
Between, contact sets side is serially connected between AC power source AC and high voltage package；The emitter of triode Q4 is grounded, base stage series resistor
It is grounded after being coupled to single-chip microcontroller, simultaneously series resistor R20 after R19；The cathode of diode D3 is coupled to power supply VCC, diode D3
Anode be coupled to the collector of triode Q5；The coil sides of relay J2 are serially connected with the collector of power supply VCC Yu triode Q5
Between, contact sets side is serially connected between AC power source AC and oil valve；The emitter of triode Q5 is grounded, base stage series resistor R21
After be coupled to single-chip microcontroller, be grounded after series resistor R22 simultaneously；The cathode of diode D4 is being coupled to power supply VCC, diode D4 just
Pole is coupled to the collector of triode Q6；The coil sides of relay J3 are serially connected between power supply VCC and the collector of triode Q6,
Contact sets side is serially connected between AC power source AC and fan；The emitter of triode Q6 is grounded, and is coupled after base stage series resistor R23
It is grounded after single-chip microcontroller while series resistor R24.
Wireless receiving module 4 includes that radiofrequency receiving chip and peripheral circuit (are such as coupled to the emergency stop circuit 1, defeated of single-chip microcontroller 5
Enter circuit 2, detection circuit 3, display circuit 6 and fan heater control circuit 7) it constitutes, radiofrequency receiving chip receives main control module hair
The signal penetrated transports to single-chip microcontroller by I/O oral instructions, and single-chip microcontroller drives after confirming the validity information according to control logic and control module
The I/O mouth being connected, starts or stops industrial fan heater.When (wireless) main control module stops working or beyond working range,
3 temp-sensitive sensor of detection module and R1 divider resistance string when industrial fan heater control module does not receive effective control signal
Connection, variation of ambient temperature cause temp-sensitive sensor change in resistance, and single-chip microcontroller reads information and calculates real-time monitoring environment temperature, and
Display module 6 is transported to by I/O oral instructions.
Input module 2 include rotary switch, divider resistance (being expressed as resistance above) R5, triode R6, triode R7,
Triode R8, triode R9, triode R10, triode R11, resistance R12 and capacitor C3, capacitor C4, capacitor C5, capacitor C6,
Unlike signal is transmitted to single-chip microcontroller by setting rotary switch, and single-chip microcontroller is arranged industrial fan heater according to control logic and starts temperature
Degree reaches set temperature MCU driving and control module phase when real-time monitoring temperature is lower than setting start-up temperature or work
The I/O mouth of connection, starts or stops industrial fan heater.
Display module 6 includes resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, triode Q1, triode
D1 and 2 Q2, triode Q3, LED light (i.e. the light emitting diode of majority above) 8 segment numeral pipe.
Industrial fan heater control module 7 includes three high voltage package, oil valve and fan control circuits, high pressure packet control circuit packet
Include resistance R19, resistance R20, diode D2 triode Q4 and relay J1, oil valve control circuit include resistance R21, resistance R22,
Diode D3 triode Q5 and relay J2, high pressure packet control circuit include resistance R23, resistance R24, diode D4 triode Q6
With relay J3.Emergency stop module 1 includes resistance R25, resistance R26, capacitor C8 and switch S1, is occurred in industrial fan heater work
Lower switch S1 is pressed when emergency, industrial fan heater emergency stop simultaneously shows alarm in display module 6.
As shown in figure 4, alarm module includes single-chip microcontroller 3, wireless receiving circuit 2, input circuit 1 and warning circuit 4；
Wireless receiving circuit 2 includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C2 and resistance R3；Antenna ANT
It is coupled to the first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and coupling capacitance simultaneously
C2 is followed by ground；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；5th pin string of radiofrequency receiving chip
Single-chip microcontroller is coupled to after connecting resistance R3；
Input circuit 1 includes power supply VCC, resistance R2, resistance R1, contact switch S1 and capacitor C1；One end coupling of resistance R2
It is connected to power supply VCC, the other end is coupled to single-chip microcontroller 3 and ground connection, serial capacitance C1 are followed by after series resistor R1 and electric shock switch S1
Ground；
Warning circuit 4 includes power supply VCC, light emitting diode D1, resistance R9, triode Q1, resistance R4, resistance R5, buzzing
Device SPK1, resistance R8, triode Q2, resistance R6 and resistance R7；One end of light emitting diode D1 is coupled to power supply, other end string
The collector of triode Q1 is coupled to after connecting resistance R9；The emitter of triode Q1 is connected to ground；The base stage of triode Q1 concatenates electricity
It is coupled to single-chip microcontroller after resistance R4, while base stage series resistor R5 is followed by ground；One end of buzzer SPK1 is coupled to power supply, another
The collector of triode Q2 is coupled to after the series resistor R8 of end；The emitter of triode Q2 is connected to ground；The base stage string of triode Q2
Single-chip microcontroller is coupled to after connecting resistance R6, while base stage series resistor R7 is followed by ground.
Wireless receiving circuit 2 includes that (peripheral circuit refers to that described previously includes antenna for radiofrequency receiving chip and peripheral circuit
The circuit of ANT, power supply VCC, capacitor C2 and resistance R3), radiofrequency receiving chip receives the signal of main control module transmitting, passes through I/O
Single-chip microcontroller is transported in oral instructions, and single-chip microcontroller is alarmed or cancelled after confirming the validity information and alarms.Alarm module 4 includes resistance R4, resistance
R5, resistance R6, resistance R7, resistance R8, resistance R9, triode Q1, triode Q2, light emitting diode D1 and buzzer SPK1.It is defeated
Entering module 1 includes resistance R1, resistance R2, capacitor C1 and switch S1, cancels this report by lower switch S1 after the alarm of alarm module 4
It is alert.
In addition, photosensitive sensor model herein: GL12516, producer: Nanyang Senba Optical Electronic Co., Ltd.；Temperature sensitive biography
Sensor model: CWF1 103F3950, producer: Nanjing Shiheng Electronics Co., Ltd.；The producer of single-chip microcontroller is respectively with model
Atmel, Microchip, model are as follows: attiny88 (main control module), pic16f1827 (industrial fan heater control module),
Pic12f1501 (alarm module).
A kind of industrial fan heater device industrial fan heater control module wireless control priority provided by the utility model
Height, when there is wireless control signal according to wireless control command action, the basis if wireless transport module does not receive order
Input module control, MCU controller (referring to single-chip microcontroller) can make corresponding control according to the setting of input module.To sum up, originally
The more convenient operation of the industrial warm air control device of application, the temperature of control is wider, and safety is higher.
For those skilled in the art, it is excellent that association's others can be easy to according to the above implementation type
Point and deformation.Therefore, the utility model is not limited to above-mentioned specific example, as just example to the one of the utility model
Kind form carries out detailed, exemplary explanation.In the range of without departing substantially from the utility model aims, those of ordinary skill in the art
According to above-mentioned specific example by the obtained technical solution of various equivalent replacements, the right that should be included in the utility model is wanted
It asks within range and its equivalency range.
Claims (7)
1. a kind of industrial fan heater control device, which is characterized in that including industrial fan heater control module, main control module and alarm
Module；
Main control module includes single-chip microcontroller, button inputting circuits, temperature sensing circuit, display circuit and radio transmitter；
Button inputting circuits are coupled to single-chip microcontroller, open for industrial fan heater in the industrial fan heater control module of single-chip microcontroller to be arranged
Alarm temperature threshold value in dynamic temperature threshold value and alarm module；
Temperature sensing circuit is coupled to single-chip microcontroller, realizes environment temperature feedback in single-chip microcontroller, for single-chip microcontroller to environment temperature
With industrial fan heater start-up temperature threshold value comparison and then control industrial fan heater control module opens warm-air drier, is used for single-chip microcontroller pair
Environment temperature and alarm temperature threshold value comparison and then control alarm module alarm；
Display circuit is coupled to single-chip microcontroller, the ambient temperature information for displays temperature detection circuit feedback；
Radio transmitter couples single-chip microcontroller, and single-chip microcontroller controls industrial fan heater control module and alarm by wireless transmitting unit
Module；
One pin of single-chip microcontroller is grounded.
2. a kind of industrial fan heater control device according to claim 1, which is characterized in that button inputting circuits include electricity
Hinder R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C2, contact switch S1, contact switch S2, contact switch S3 and touching
Point switch S4；Wherein, one end of resistance R1 is connected to power supply VCC；The other end of resistance R1 is coupled to single-chip microcontroller, series resistor R2
It is followed by being followed by after ground, series resistor R4 and contact switch S3 in ground, series resistor R3 and contact switch S2 with contact switch S1
It is connected to ground, while series resistor R5 and contact switch S4 are followed by ground.
3. a kind of industrial fan heater control device according to claim 1, which is characterized in that temperature sensing circuit includes temperature
Dependent sensor, divider resistance R6, current-limiting resistance R7 and capacitor C1；One end of divider resistance R6 is connected to power supply VCC, divider resistance
Single-chip microcontroller is coupled to after ground, concatenation current-limiting resistance R7 after the other end concatenation temp-sensitive sensor of R6 while concatenating current limliting electricity
It is grounded after resistance R7 and capacitor C1.
4. a kind of industrial fan heater control device according to claim 1, which is characterized in that display circuit includes resistance
R8, resistance R9, resistance R10, resistance R11, triode Q1, triode Q2 and 28 segment numeral pipes；One end of resistance R8 connects
Single-chip microcontroller is coupled to after power supply VCC, other end series resistor R9；The emitter of triode Q1 is coupled to power supply VCC, collector
It is coupled to a pin of 28 segment numeral pipes, is coupled to single-chip microcontroller after base stage series resistor R9；The emitter of triode Q2 couples
In power supply VCC, collector is coupled to a pin of 28 segment numeral pipes, and base stage is coupled to single-chip microcontroller after being serially connected with resistance R11；2
8 segment numeral pipes of position are further coupled to single-chip microcontroller.
5. a kind of industrial fan heater control device according to claim 1, which is characterized in that radio transmitter includes hair
Core shooting piece U1, resistance R12, resistance R13, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, electricity
Hold C10, capacitor C11, capacitor C12, capacitor C13, inductance L1 and inductance L2；
Ground connection, serial capacitance C3 after single-chip microcontroller, series resistor R13 are coupled to after the ASK pin series resistor R12 of transmitting chip U1
After be grounded；It is grounded after the XTLIN pin serial capacitance C4 of transmitting chip U1；The XTLOUT pin serial capacitance C5 of transmitting chip U1
After be grounded；Crystal oscillator is equipped between the XTLIN pin and XTLOUT pin of transmitting chip U1；The PAOUT of transmitting chip U1 draws
One end that capacitor C9 is grounded while be coupled to after power supply VCC, serial capacitance C8 is coupled to after foot tandem electric inductance L1；Capacitor C9's
It is grounded after other end serial capacitance C13, is grounded after serial capacitance C10, antenna ANT and capacitor C12, tandem electric inductance L2, capacitor C11
After be grounded；The VSS leads ends of transmitting chip U1 are grounded；The VDD pin of transmitting chip U1 is coupled to power supply VCC；The one of capacitor C6
End while the VDD pin for being coupled to power supply VCC Yu transmitting chip U1, other end ground connection；One end of capacitor C7 is coupled to electricity simultaneously
The VDD pin of source VCC and transmitting chip U1, other end ground connection.
6. a kind of industrial fan heater control device according to claim 1, which is characterized in that industrial fan heater control module
Including single-chip microcontroller, it is coupled to the emergency stop circuit of single-chip microcontroller, input circuit, detection circuit, wireless receiving circuit, display circuit and warm
Draught fan control circuit；
Emergency stop circuit includes power supply VCC, resistance R26, resistance R25, contact switch S1；One end of resistance R26 is coupled to an electricity
Source VCC, the other end are grounded after being coupled to ground connection after single-chip microcontroller, series resistor R25 and electric shock switch S1, simultaneously serial capacitance C8；
Input circuit include rotary switch, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11,
Resistance R12, capacitor C3, capacitor C4, capacitor C5 and capacitor C6；Rotary switch is coupled to another power supply VCC；One end coupling of resistance R5
It is connected to a pin of rotary switch, the other end is connected to ground after being coupled to single-chip microcontroller and serial capacitance C3 simultaneously, rotary switch
The pin also passes through series resistor R9 and is followed by ground；One end of resistance R6 is coupled to a pin of rotary switch, and the other end is simultaneously
It is connected to ground after being coupled to single-chip microcontroller and serial capacitance C4, the pin of rotary switch also passes through series resistor R10 and is followed by ground；
One end of resistance R7 is coupled to a pin of rotary switch, and the other end is connected to after being coupled to single-chip microcontroller and serial capacitance C5 simultaneously
Ground, the pin of rotary switch also pass through series resistor R11 and are followed by ground；What one end of resistance R8 was coupled to rotary switch one draws
Foot, the other end are connected to ground after being coupled to single-chip microcontroller and serial capacitance C6 simultaneously, and the pin of rotary switch also passes through concatenation electricity
Resistance R12 is followed by ground；
Detection circuit includes power supply VCC, resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, photosensitive sensor
With temp-sensitive sensor；One end of resistance R1 is coupled to power supply VCC, and other end concatenation photosensitive sensor is followed by ground while concatenating
It is coupled to single-chip microcontroller and simultaneously series resistor R2 after resistance R2 and capacitor C1 is followed by ground；One end of resistance R3 is coupled to electricity
Source VCC, other end concatenation temp-sensitive sensor are followed by being coupled to single-chip microcontroller behind ground while series resistor R4 and concatenate simultaneously
Resistance R4 and capacitor C2 are followed by ground；
Wireless receiving circuit includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C7 and resistance R13；Antenna ANT coupling
In the first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and simultaneously after coupling capacitance C7
It is connected to ground；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；5th pin of radiofrequency receiving chip concatenates electricity
Single-chip microcontroller is coupled to after resistance R13；
Display circuit includes two power supply VCC, light emitting diode D1, triode Q1, resistance R14, resistance R15, resistance R16, electricity
Hinder R17, resistance R18, triode Q2, triode Q3 and 28 segment numeral pipes；One power supply VCC concatenates light emitting diode D1 and electricity
The collector of triode Q1 is coupled to after resistance R16；The emitter of triode Q1 is connected to ground；The base stage series resistor R14 of triode
After be coupled to single-chip microcontroller, simultaneously series resistor R15 be followed by ground；Another power supply VCC is connected to the emitter of triode Q2 and is connected to
The emitter of triode Q3；Single-chip microcontroller, the collector coupling of triode Q2 are coupled to after the base stage series resistor R18 of triode Q2
In a pin of 28 segment numeral pipes；Single-chip microcontroller, the current collection of triode Q3 are coupled to after the base stage series resistor R17 of triode Q3
Pole is coupled to another pin of 28 segment numeral pipes；28 segment numeral pipes are further coupled to single-chip microcontroller；
Fan heater control circuit include power supply VCC, diode D2, diode D3, diode D4, relay J1, relay J2, after
Electric appliance J3, AC power source AC, high voltage package, oil valve, fan, triode Q4, triode Q5, triode Q6, resistance R19, resistance
R20, resistance R21, resistance R22, resistance R23 and resistance R24；The cathode of diode D2 is being coupled to power supply VCC, diode D2 just
Pole is coupled to the collector of triode Q4；The coil sides of relay J1 are serially connected between power supply VCC and the collector of triode Q4,
Contact sets side is serially connected between AC power source AC and high voltage package；The emitter of triode Q4 is grounded, coupling after base stage series resistor R19
It is grounded after being connected to single-chip microcontroller, simultaneously series resistor R20；The cathode of diode D3 is coupled to the positive coupling of power supply VCC, diode D3
It is connected to the collector of triode Q5；The coil sides of relay J2 are serially connected between power supply VCC and the collector of triode Q5, contact
Group side is serially connected between AC power source AC and oil valve；The emitter of triode Q5 is grounded, and is coupled to list after base stage series resistor R21
It is grounded after piece machine while series resistor R22；The cathode of diode D4 is coupled to power supply VCC, the anode of diode D4 is coupled to three
The collector of pole pipe Q6；The coil sides of relay J3 are serially connected between power supply VCC and the collector of triode Q6, contact sets side string
It is connected between AC power source AC and fan；The emitter of triode Q6 is grounded, be coupled to after base stage series resistor R23 single-chip microcontroller,
It is grounded after series resistor R24 simultaneously.
7. a kind of industrial fan heater control device according to claim 1, which is characterized in that alarm module includes wirelessly connecing
Receive circuit, input circuit and warning circuit；
Wireless receiving circuit includes radiofrequency receiving chip, antenna ANT, power supply VCC, capacitor C2 and resistance R3；Antenna ANT is coupled to
The first pin of radiofrequency receiving chip；Power supply VCC is coupled to the second pin of radiofrequency receiving chip, and coupling capacitance C2 is followed by simultaneously
Yu Di；The third pin and the 4th pin of radiofrequency receiving chip are coupled to ground；5th pin series resistor of radiofrequency receiving chip
Single-chip microcontroller is coupled to after R3；
Input circuit includes power supply VCC, resistance R2, resistance R1, contact switch S1 and capacitor C1；One end of resistance R2 is coupled to electricity
Source VCC, the other end are coupled to single-chip microcontroller and are grounded after ground connection, serial capacitance C1 after series resistor R1 and electric shock switch S1；
Warning circuit includes power supply VCC, light emitting diode D1, resistance R9, triode Q1, resistance R4, resistance R5, buzzer
SPK1, resistance R8, triode Q2, resistance R6 and resistance R7；One end of light emitting diode D1 is coupled to power supply, other end concatenation electricity
The collector of triode Q1 is coupled to after resistance R9；The emitter of triode Q1 is connected to ground；The base stage series resistor R4 of triode Q1
After be coupled to single-chip microcontroller, while base stage series resistor R5 is followed by ground；One end of buzzer SPK1 is coupled to power supply, other end string
The collector of triode Q2 is coupled to after connecting resistance R8；The emitter of triode Q2 is connected to ground；The base stage of triode Q2 concatenates electricity
It is coupled to single-chip microcontroller after resistance R6, while base stage series resistor R7 is followed by ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821179386.7U CN208936260U (en) | 2018-07-24 | 2018-07-24 | A kind of industrial fan heater control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821179386.7U CN208936260U (en) | 2018-07-24 | 2018-07-24 | A kind of industrial fan heater control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208936260U true CN208936260U (en) | 2019-06-04 |
Family
ID=66716605
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821179386.7U Active CN208936260U (en) | 2018-07-24 | 2018-07-24 | A kind of industrial fan heater control device |
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| Country | Link |
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2018
- 2018-07-24 CN CN201821179386.7U patent/CN208936260U/en active Active
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