CN204511939U - A kind of blower fan temperature control circuit for burner - Google Patents
A kind of blower fan temperature control circuit for burner Download PDFInfo
- Publication number
- CN204511939U CN204511939U CN201520132797.0U CN201520132797U CN204511939U CN 204511939 U CN204511939 U CN 204511939U CN 201520132797 U CN201520132797 U CN 201520132797U CN 204511939 U CN204511939 U CN 204511939U
- Authority
- CN
- China
- Prior art keywords
- resistance
- operational amplifier
- blower fan
- power supply
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
The utility model is applicable to a kind of temperature control circuit, disclose a kind of blower fan temperature control circuit for burner, comprise blower fan and thermoregulative mechanism, described thermoregulative mechanism comprises the fan power, thermoregulation circuit and the temperature adjustment push button panel mutual with user that are connected with blower fan, described fan power is connected with blower fan by thermoregulation circuit, and described temperature adjustment push button panel is connected with thermoregulation circuit.A kind of blower fan temperature control circuit for burner that the utility model provides, rational in infrastructure, thermoregulation circuit is adopted to regulate the rotating speed of blower fan and power, make the size of charcoal furnace interior air output can steady change, thus make the temperature of charcoal stove and firepower can be adjusted to more accurate grade, greatly user-friendly, but also adopt the temperature adjustment push button panel being convenient to user's operation, make user directly can regulate firepower by the push button panel of charcoal stove outer covering, the using effect of further raising charcoal stove, has very strong practicability and promotional value.
Description
[technical field]
The utility model relates to a kind of temperature control circuit, particularly a kind of blower fan temperature control circuit for burner.
[background technique]
There is diversified burner on the market, such as coal stove, gas stove, charcoal stove etc., it all produces heat energy by burning.In order to full combustion of fuel, burner is equipped with the blower fan that can increase air flowing toward contact.In order to realize the combustion temperature of burner being controlled within the specific limits, the normal temperature control circuit that adopts carries out turnover Boiler pressure control to blower fan.Blower fan temperature regulate speed circuit is made up of temperature sensor (thermistor etc.), comparator and driving element (switching tube etc.) usually, basic principle is: measured temperature in electronic equipment by temperature sensor, when temperature is lower than setting value, comparator exports high level, control driving element switches on power, and blower fan rotates with rated speed, and in burner, oxygen increases, burning is more abundant, and temperature starts to raise; When temperature is higher than setting value, comparator output low level, control driving element and disconnect fan power, blower fan stops operating, and in burner, oxygen reduces, and burns insufficient, and temperature starts to decline, and combustion temperature controls in certain limit the most at last.Although this control mode structure is simple, but rotation speed of fan is controlled to only have maximum speed and stopping two grades, due to burner, heating value is different in varied situations, different for reaching oxygen needed for combustion temperature, only be difficult to burner internal combustion temperature to control, in more accurate scope, namely to there is the shortcoming of temperature control control accuracy difference by peak output ventilation and stopping ventilation.In addition this control mode easily causes blower fan frequent starting, brings insufferable noise on the one hand to user, brings impact on the other hand, reduce blower fan and temperature control circuit life-span to temperature control circuit element and blower fan structure.
In order to overcome above-mentioned shortcoming, PWM method for controlling speed regulation is adopted in prior art, to realize rotation speed of fan stepless speed regulation between zero-sum rated speed, improve temperature control precision, and the impact reduced blower fan and temperature control circuit, improve the reliability of blower fan and temperature control circuit, blower fan sound can be made in addition to become soft.But current this control mode complicated structure, often needs vibrator circuit, comparison circuit, pwm control circuit etc., even adopt microcomputer to control, this reduces the reliability of temperature control circuit, add burner body sum cost.
[model utility content]
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of blower fan temperature control circuit for burner, it is intended to solve the technical problem that temperature control circuit temperature degree of regulation of the prior art is not high, component is too complicated, burner volume is larger.
For achieving the above object, the utility model proposes a kind of blower fan temperature control circuit for burner, comprise blower fan and thermoregulative mechanism, described thermoregulative mechanism comprises the fan power, thermoregulation circuit and the temperature adjustment push button panel mutual with user that are connected with blower fan, described fan power is connected with blower fan by thermoregulation circuit, and described temperature adjustment push button panel is connected with thermoregulation circuit;
Described thermoregulation circuit comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, potentiometer RP, regulating resistance RT, electric capacity C1, electric capacity C3, operational amplifier N1, operational amplifier N2, operational amplifier N3 and power MOSFET tube;
One end of resistance R1 is connected with the positive pole VCC of fan power, the other end is connected with the positive input terminal of operational amplifier N1, one end of potentiometer RP is connected with resistance R1 with movable end, the other end is connected with one end of regulating resistance RT, the other end of regulating resistance RT is connected with power supply ground GND, and the adjustable side of regulating resistance RT is connected with temperature adjustment push button panel;
One end of resistance R2 is connected with positive pole VCC, the other end is connected with the negative input end of operational amplifier N1, one end of resistance R4 is connected with the negative input end of operational amplifier N1, the other end is connected with the output terminal of operational amplifier, and one end of resistance R3 is connected with resistance R2, the other end is connected with power supply ground GND;
The positive input terminal of operational amplifier N3 is connected with positive pole VCC by electric capacity C3, negative input end is connected with regulating resistance RT, be connected with the negative input end of operational amplifier N2 by resistance R5 together with after output terminal connects with the output terminal of operational amplifier N1 with resistance R4, the positive input terminal of operational amplifier N2 is connected with positive pole VCC by resistance R6, the output terminal of operational amplifier N2 is leaded up to resistance R8 and is connected with self positive input terminal, resistance R9 of separately leading up to is connected with self negative input end, the cathode power supply end of operational amplifier N2 is connected with positive pole VCC, negative electricity source is connected with power supply ground GND,
Source resistance R7 one end is connected with resistance R6, the other end is connected with power supply ground GND, electric capacity C1 one end is connected with the negative input end of operational amplifier N2, the other end is connected with power supply ground GND, and one end of resistance R10 is connected with the output terminal of operational amplifier N2, the other end is connected with the grid level g of power MOSFET tube;
The source electrode s of power MOSFET tube is connected with power supply ground GND, the d that drains is connected with blower fan FAN.
As preferably, described thermoregulation circuit also comprises electric capacity C2, and positive pole VCC is connected with power supply ground GND by electric capacity C2.
The beneficial effects of the utility model: compared with prior art, a kind of blower fan temperature control circuit for burner that the utility model provides, rational in infrastructure, thermoregulation circuit is adopted to regulate the rotating speed of blower fan and power, make the size of charcoal furnace interior air output can steady change, thus make the temperature of charcoal stove and firepower can be adjusted to more accurate grade, greatly user-friendly, but also adopt the temperature adjustment push button panel being convenient to user's operation, make user directly can regulate firepower by the push button panel of charcoal stove outer covering, the using effect of further raising charcoal stove, there is very strong practicability and promotional value.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the thermoregulation circuit structural representation of the utility model embodiment.
[embodiment]
For making the purpose of this utility model, technological scheme and advantage clearly understand, below by accompanying drawing and embodiment, the utility model is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the utility model, is not limited to scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
Consult Fig. 1, the utility model embodiment provides a kind of blower fan temperature control circuit for burner, comprise blower fan and thermoregulative mechanism, thermoregulative mechanism comprises the fan power, thermoregulation circuit and the temperature adjustment push button panel mutual with user that are connected with blower fan, fan power is connected with blower fan by thermoregulation circuit, and temperature adjustment push button panel is connected with thermoregulation circuit.
The utility model embodiment adopts blower fan to carry out combustion-supporting to burner, therefore regulates the size of the air output of blower fan, just can regulate the velocity of combustion speed of burner internal fuel, thus regulates combustion temperature.
In this kind of structure, user can easily pass temperature adjustment push button panel and regulate the rotating speed of blower fan and power, namely can regulate combustion temperature and the firepower of burner like a cork, greatly facilitate the use of user.
Particularly, thermoregulation circuit comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, potentiometer RP, regulating resistance RT, electric capacity C1, electric capacity C3, operational amplifier N1, operational amplifier N2, operational amplifier N3 and power MOSFET tube.
Further, one end of resistance R1 is connected with the positive pole VCC of fan power, the other end is connected with the positive input terminal of operational amplifier N1, one end of potentiometer RP is connected with resistance R1 with movable end, the other end is connected with one end of regulating resistance RT, the other end of regulating resistance RT is connected with power supply ground GND, and the adjustable side of regulating resistance RT is connected with temperature adjustment push button panel;
Further, one end of resistance R2 is connected with positive pole VCC, the other end is connected with the negative input end of operational amplifier N1, one end of resistance R4 is connected with the negative input end of operational amplifier N1, the other end is connected with the output terminal of operational amplifier, and one end of resistance R3 is connected with resistance R2, the other end is connected with power supply ground GND.
Further, the positive input terminal of operational amplifier N3 is connected with positive pole VCC by electric capacity C3, negative input end is connected with regulating resistance RT, be connected with the negative input end of operational amplifier N2 by resistance R5 together with after output terminal connects with the output terminal of operational amplifier N1 with resistance R4, the positive input terminal of operational amplifier N2 is connected with positive pole VCC by resistance R6, the output terminal of operational amplifier N2 is leaded up to resistance R8 and is connected with self positive input terminal, resistance R9 of separately leading up to is connected with self negative input end, the cathode power supply end of operational amplifier N2 is connected with positive pole VCC, negative electricity source is connected with power supply ground GND.
Further, source resistance R7 one end is connected with resistance R6, the other end is connected with power supply ground GND, electric capacity C1 one end is connected with the negative input end of operational amplifier N2, the other end is connected with power supply ground GND, one end of resistance R10 is connected with the output terminal of operational amplifier N2, the other end is connected with the grid level g of power MOSFET tube, and the source electrode s of power MOSFET tube is connected with power supply ground GND, the d that drains is connected with blower fan FAN.
Wherein, in order to improve the reliability of the utility model embodiment, thermoregulation circuit also comprises electric capacity C2, and positive pole VCC is connected with power supply ground GND by electric capacity C2.
During work, the output blower fan FAN that positive pole meets positive pole VCC, negative pole connects thermoregulation circuit of blower fan.Resistance R2, resistance R3 provide temperature reference signal for operational amplifier N1, resistance R1, potentiometer RP and regulating resistance RT provide temperature feedback signal for operational amplifier N1, after temperature feedback signal compares with temperature amplifying signal, the amplification circuit process formed through operational amplifier N1 and resistor R4 generates temperature regulated signal.Operational amplifier N2 and resistance R6, resistance R7, resistance R8, resistance R9, electric capacity C1, electric capacity C2 form pwm control circuit, at operational amplifier N2 output terminal output pwm signal, change the frequency that electric capacity C1 and resistance R9 can change output pwm signal, the dutycycle of output pwm signal can be changed according to the input signal being applied to operational amplifier N2 negative input end.After the temperature regulated signal that operational amplifier N1 exports is applied to operational amplifier N2 by resistance R5, then export the pwm signal with temperature signal duty ratio corresponding at operational amplifier N2 output terminal, managed by resistance R10 driving power MOSFET, by power MOSFET tube, PWM speed regulating control is realized to blower fan 3.
When user needs to turn burner firepower down, regulating resistance RT resistance raises, the positive input terminal of operational amplifier N1 is higher than its negative input end voltage, the temperature regulated signal that operational amplifier N1 output terminal exports high voltage transfers on operational amplifier N2 by resistance R5, the pwm signal that operational amplifier N2 output terminal output duty cycle is less, on blower fan, the smaller PWM voltage of duty is applied by power MOSFET tube, equivalent voltage amplitude is lower, blower fan is with lower rotational speed, then the velocity of combustion of fuel is slack-off, and temperature reduces gradually; When user needs to increase burner firepower, pwm signal dutycycle operational amplifier N2 output terminal being exported according to aforesaid working procedure increases, and the rotating speed of blower fan increases, and velocity of combustion accelerates, and temperature rises to setting temperature.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the blower fan temperature control circuit for burner, comprise blower fan and thermoregulative mechanism, described thermoregulative mechanism comprises the fan power, thermoregulation circuit and the temperature adjustment push button panel mutual with user that are connected with blower fan, described fan power is connected with blower fan by thermoregulation circuit, and described temperature adjustment push button panel is connected with thermoregulation circuit;
Described thermoregulation circuit comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, potentiometer RP, regulating resistance RT, electric capacity C1, electric capacity C3, operational amplifier N1, operational amplifier N2, operational amplifier N3 and power MOSFET tube;
One end of resistance R1 is connected with the positive pole VCC of fan power, the other end is connected with the positive input terminal of operational amplifier N1, one end of potentiometer RP is connected with resistance R1 with movable end, the other end is connected with one end of regulating resistance RT, the other end of regulating resistance RT is connected with power supply ground GND, and the adjustable side of regulating resistance RT is connected with temperature adjustment push button panel;
One end of resistance R2 is connected with positive pole VCC, the other end is connected with the negative input end of operational amplifier N1, one end of resistance R4 is connected with the negative input end of operational amplifier N1, the other end is connected with the output terminal of operational amplifier, and one end of resistance R3 is connected with resistance R2, the other end is connected with power supply ground GND;
The positive input terminal of operational amplifier N3 is connected with positive pole VCC by electric capacity C3, negative input end is connected with regulating resistance RT, be connected with the negative input end of operational amplifier N2 by resistance R5 together with after output terminal connects with the output terminal of operational amplifier N1 with resistance R4, the positive input terminal of operational amplifier N2 is connected with positive pole VCC by resistance R6, the output terminal of operational amplifier N2 is leaded up to resistance R8 and is connected with self positive input terminal, resistance R9 of separately leading up to is connected with self negative input end, the cathode power supply end of operational amplifier N2 is connected with positive pole VCC, negative electricity source is connected with power supply ground GND,
Source resistance R7 one end is connected with resistance R6, the other end is connected with power supply ground GND, electric capacity C1 one end is connected with the negative input end of operational amplifier N2, the other end is connected with power supply ground GND, and one end of resistance R10 is connected with the output terminal of operational amplifier N2, the other end is connected with the grid level g of power MOSFET tube;
The source electrode s of power MOSFET tube is connected with power supply ground GND, the d that drains is connected with blower fan FAN.
2. a kind of blower fan temperature control circuit for burner as claimed in claim 1, is characterized in that: described thermoregulation circuit also comprises electric capacity C2, and positive pole VCC is connected with power supply ground GND by electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520132797.0U CN204511939U (en) | 2015-03-09 | 2015-03-09 | A kind of blower fan temperature control circuit for burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520132797.0U CN204511939U (en) | 2015-03-09 | 2015-03-09 | A kind of blower fan temperature control circuit for burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511939U true CN204511939U (en) | 2015-07-29 |
Family
ID=53709921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520132797.0U Expired - Fee Related CN204511939U (en) | 2015-03-09 | 2015-03-09 | A kind of blower fan temperature control circuit for burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511939U (en) |
-
2015
- 2015-03-09 CN CN201520132797.0U patent/CN204511939U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102769959B (en) | LED light-dimming driving circuit | |
| CN204511939U (en) | A kind of blower fan temperature control circuit for burner | |
| CN201143590Y (en) | Inversion welding source | |
| CN203215989U (en) | Domestic intelligent electric control fan heater control device | |
| CN204445514U (en) | A kind of charcoal stove of fan combustion-supportincombustion | |
| CN206006337U (en) | Hair-dryer wind speed, temperature-adjusting device and hair-dryer | |
| CN202991563U (en) | Fan device controlled by infrared rays | |
| CN204179837U (en) | A kind of heat abstractor of glass lifter motor | |
| CN102720684A (en) | Speed governing exhaust fan controller | |
| CN201637098U (en) | Hot-blast furnace with PTC heating element | |
| CN203181251U (en) | Vehicle forest air machine heating device | |
| CN206517325U (en) | A kind of motor constant-speed forward controller | |
| CN203215815U (en) | Range hood air volume and air pressure compensation system based on variable frequency motor | |
| CN205649104U (en) | Radio dryer charges | |
| CN202030952U (en) | Water level detection circuit for washing machine steam generator | |
| CN207266312U (en) | A kind of heating board | |
| CN207050421U (en) | Dryer automatic constant temperature controller | |
| CN202867297U (en) | Automatic tracking control circuit of fan | |
| CN204245985U (en) | A kind of multi-functional foam maker | |
| CN221177946U (en) | Heater heating power regulating circuit | |
| CN205176683U (en) | Gas heater temperature automatic control device | |
| CN204593883U (en) | A kind of housing energy saving hot water automaton | |
| CN103512066A (en) | Automatic speed-regulating exhaust hood | |
| CN216509323U (en) | Temperature control circuit for heating wire of ironing head of money binding machine | |
| CN208550039U (en) | A kind of electronic cigarette operating circuit and electronic cigarette |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |