CN201100755Y - Digital control thermal wind gun - Google Patents
Digital control thermal wind gun Download PDFInfo
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- CN201100755Y CN201100755Y CNU2007201151292U CN200720115129U CN201100755Y CN 201100755 Y CN201100755 Y CN 201100755Y CN U2007201151292 U CNU2007201151292 U CN U2007201151292U CN 200720115129 U CN200720115129 U CN 200720115129U CN 201100755 Y CN201100755 Y CN 201100755Y
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Abstract
A digital control hot-air gun for heating is concerned. The key points of the design are that a fan EMC filtrate circuit is connected with a fan power supply circuit, a central processing system MCU circuit is connected with a plastic part filter protection circuit, an output section which is connected with an electric thermocouple fault detecting circuit is connected with the central processing system MCU circuit, a main electric heating member is connected with the anode of a main heating two-way controlled member, the data communication end of a personal setting temporary file EEPROM circuit is connected with the central processing system MCU circuit, and a main data base EEPROM circuit is connected with the personal setting temporary file EEPROM circuit. The digital control hot-air gun solves the problems of setting temperature, regulating air volume, safety protection and saving energy.
Description
Technical field
The utility model relates to the heat gun that heats usefulness, is a kind of numerical control hot-blast gun.
Background technology
At present, the heat gun of domestic production mainly is made of heater element, motor and fan blade and gauge tap etc., the heat that heater produced is delivered to the heat gun gun barrel by fan blade and derives, utilize the heat of deriving that the need heating object is implemented heating, this type of heat gun does not possess energy-saving effect under specific temperature.Chinese patent Granted publication CN2884767Y, title: the circuit arrangement of heat gun.This circuit arrangement comprises: power circuit, temperature control circuit, air-supply circuit and heater element; Temperature control circuit comprises single-chip microcomputer, power control circuit, TEMP and amplifying circuit, button temperature setting circuit, liquid crystal temperature display circuit and difference comparison circuit; Single-chip microcomputer is set according to the heating power of the setting control heater element of button settings circuit and with temperature, and value is shown by LCD.The difference comparison circuit is that heater element operating temperature and design temperature that temperature sensor measurement gets are compared, and generates the difference correction.Power control circuit is according to the heating power circuit of the difference signal control heater element of difference comparison circuit.Heat gun the application to this circuit does not comment in addition.
Summary of the invention
The utility model purpose is to provide a kind of numerical control hot-blast gun to this area, the safeguard protection during the setting, air quantity that achieves temperature regulated, used, and power-saving technology.The utility model purpose is achieved by the following technical solution.
A kind of numerical control hot-blast gun, the circuit of this heat gun comprises LCD screen and LCD drive circuit, power switch circuit, system power supply circuit, thermocouple circuit, power of fan control triggering electric circuit, fan power supply circuit, leads heating control triggering electric circuit, thermocouple voltages amplifying circuit, keyboard input circuit, it is characterized in that blower fan EMC filtrate circuit is connected with the fan power supply circuit.Central processing system MCU circuit connects plastic and filters holding circuit.The deferent segment that the thermocouple failure detector circuit connects is connected with central processing system MCU circuit.Main electrical heating elements is connected with the two-way controlled member anode of main heating.The data communication end of personal settings temporary file eeprom circuit connects central processing system MCU circuit.Major control data storehouse eeprom circuit is connected with personal settings temporary file eeprom circuit.
Described major control data storehouse eeprom circuit and personal settings temporary file eeprom circuit carry out the Temperature Fuzzy Control analysis to collecting temperature, and data input central processing system MCU circuit is connected with the circuit of actual temperature in LCD screen display setting temperature.
Described central processing system MCU circuit makes circuit be connected with heating is main; Central processing system MCU circuit filters holding circuit with plastic and is connected; The thermocouple failure detector circuit is connected with the thermocouple disconnection protection circuit.
The numerical control hot-blast gun circuit is described: the control program that the Single-chip Controlling software systems that the heat gun running status is connected with amplifying circuit, heat gun plastic parts temperature protection system, sensor fault holding circuit are connected with central processing system MCU circuit; Button, button control program and LCD display mode that the displaying contents of LCDs and display driver control program, operator's individual's pattern storage and individual pattern abstraction function are connected.The data communication end of personal settings temporary file eeprom circuit connects central processing system MCU circuit; Major control data storehouse eeprom circuit is connected with personal settings temporary file eeprom circuit.Central processing system MCU circuit carries out the Temperature Fuzzy Control analysis to collecting temperature, and design temperature and actual temperature are by the identical characters position display of LCD screen.Show when temperature is provided with temperature is set, set back displays temperature tracing process, two triangles stop to glimmer in the screen when temperature and actual temperature being set coincideing.Automatically revise the temperature effect of different air quantity based on the temperature automatic control technology to electro-heat equipment; The supply voltage error can be implemented under the actual temperature and realize energy-conservation 60% purpose by the control air quantity Temperature Influence.Button comprises storage S key: the heat gun operator stores individual use habit data by this key, and this storage cooperates the T key that any combination of a plurality of storing temperatures and air quantity is revised.Read key T key: under to the prerequisite of individual use habit data setting, extract multiple individual use habit pattern, thereby realize that heat gun is the design concept of operator's personal customization.The control program that the single-chip computer control system that amplifying circuit is connected, heat gun plastic parts temperature protection system, sensor fault holding circuit are connected with central processing system MCU circuit; Button, button control program and LCD display mode that the displaying contents of LCDs and display driver control program, operator's individual's pattern storage and individual pattern abstraction function are connected.
The formation of numerical control hot-blast gun hardware circuit: blower fan filtrate power supply circuit is connected with the air pressure gun circuits for triggering; Motor EMC circuit is connected with motor; Main electrical heating elements DDR2 is connected with the two-way controlled member anode of main heating; The trigger end of the two-way controlled member of master control is connected with corresponding circuits for triggering; The blower fan circuits for triggering are connected with central processing system MCU circuit with main triggered circuit; The thermocouple failure detector circuit is connected with central processing system MCU circuit; Major control data storehouse eeprom circuit is connected with personal settings temporary file eeprom circuit; The data communication end of personal settings temporary file eeprom circuit is connected with central processing system MCU; The thermocouple failure detector circuit is connected with central processing system MCU circuit; The plastic temperature measurement circuit is connected with MCU; Heat gun running status LCD screen is connected with central processing system MCU circuit output end mouth; The input key circuit is connected with central processing system MCU circuit input end mouth; Ac power frequency monitors and is connected with central processing system MCU circuit input end mouth; The control switch order is connected with the input of central processing system MCU circuit; The thermocouple temperature measurement sensor is connected with the thermocouple voltages amplifier; The thermocouple amplifier voltage output end is connected with central processing system MCU circuit input end; The system power supply circuit is connected with VDA, the VSS port of central processing system MCU circuit, major control data storehouse eeprom circuit and personal settings temporary file eeprom circuit; The MCU clock circuit is connected with central processing system MCU circuit.
The numerical control hot-blast gun holding circuit is constructed as follows: the visual self diagnosis of holding circuit and fault; The temperature current protection of main heating circuit is made up of a temperature current fuse that is connected in the main heating circuit; The plastics thermal-shutdown circuit is by a temperature element sensing that is sealed in the plastic, central processing system MCU circuit end is by judging whether to close primary heater to after the reading of this sensor, then main heating is closed as the plastic cement excess temperature, and fan blade still moves working of plastics cooling while LCD is shown protected reason-code; Main heated side temperature component failure or error protection, central processing system MCU circuit judge whether to close main heating after main heating temperature element is read.Then main heating is closed fan blade and still moves as main heating temperature element fault, and body is carried out necessary cooling, and LCD shows protected reason-code simultaneously; The abnormal shutdown protection, in normal course of operation, meet abnormal shutdown, as power failure outside the plan, do not unplug after the power failure, the powered-down switch, incoming call back circuit be in holding state by the manual intervention circuit put into operation the LCD screen show have a power failure before content after last operation; Loose contact protection in attaching plug or the civil power loop, central processing system MCU circuit exists the arc spark pulse master heater circuit of reason generations such as loose contact to close automatically as detecting power supply, and the LCD screen shows corresponding reason-code; All outputs of circuit are closed the LCD reveal codes or do not have demonstration during the circuit control system fault.
The temperature controlled operation principle of described heat gun: the control of numerical control hot-blast gun temperature is a closed control circuit, the closed-loop control arbitrary origin is the measurement target variable, the formation of this circuit is: temperature transducer, thermocouple voltages amplifier produce an analog temperature monitor voltage that is directly proportional with target variable, and this voltage is input to the aanalogvoltage test side of central processing system MCU circuit; Central processing system MCU circuit carries out error ratio according to the desired value and the test side actual value of input, according to the direction of error, size produces an additional control information revise goal value and the existing deviation of actual value, desired value and actual value are coincide, realize thermostatic control on this basis.As: the variation of power supply; Velocity variations after blade motor is aging; Different air quantity influence heat generating member; The ventilation influence that distance during operation between blowing mouth and object causes.
The utility model has solved the setting, air quantity of the temperature safeguard protection in regulating, using, and energy-conservation technical problem.
Description of drawings
Fig. 1 is the numerical control hot-blast gun circuit diagram, and the dashed rectangle among the figure is the signal dividing regions of each circuit.
Sequence number among the figure and title: 1; LCD screen and LCD drive circuit; 2; power switch circuit; 3; the system power supply circuit; 4; thermocouple circuit; 5; the main circuit that makes of heating; 6; the power of fan control triggering electric circuit, 7; blower fan EMC filtrate circuit, 8; the fan power supply circuit; 9; main heating control triggering electric circuit; 10; central processing system MCU circuit, 11; plastic filters holding circuit, 12; the thermocouple failure detector circuit; 13; major control data storehouse eeprom circuit; 14; personal settings temporary file eeprom circuit, 15; the thermocouple voltages amplifying circuit, 16; the keyboard input circuit.
Fig. 2 is that the numerical control hot-blast gun master looks schematic diagram.
Fig. 3 is a numerical control hot-blast gun circuit block diagram.
The specific embodiment
In conjunction with the accompanying drawings, embodiment only is described control performance of the present utility model.Numerical control hot-blast gun handle rear side is provided with the third gear control switch, after the heat gun power supply connected AC power, control switch was the cold wind shelves for K2 to the first grade, main electrical heating elements DDR1 in the fan power supply circuit 8, D1～D4 motor M 1 energising, blower fan is not in holding state but T1 is triggered.Main electrical heating elements DDR2 is in parallel with blower fan EMC filtrate circuit 7 in the fan power supply circuit 8, also is in holding state because the T2 port is closed heating control triggering electric circuit 9.The AC synchronous circuit 4 in parallel with the blower fan circuit, constitute by D7, R23, R25, Z2, R27, E9, the output AC lock-out pulse is to central processing system MCU circuit 10, system's control power circuit 3 is exported 15V voltage by the DC voltage of 15V voltage stabilizing respectively by the DC voltage output that D5, R67, R68, C12, Z7, R28 constitute a not voltage stabilizing; 5V power supply by a voltage stabilizing of 5V voltage-stablizer QT1 output supplies central processing system MCU circuit 10 and major control data storehouse eeprom circuit 13 and personal settings temporary file eeprom circuit 14.
K2 to the first grade of control switch: by one grade of any key from standby change the initial air quantity of operation over to, air quantity is about 200L/min, realize that by air quantity increasing-and-decreasing key K3, K4 the air quantity adjusting is respectively 80L/min, 120L/min, 200L/min, 300L/min, 450L/min is Pyatyi altogether.Also give operations such as the expectation temperature of establishing when heating and individual keyboard shortcut programming simultaneously by K5, K6, but except that blower fan other to operate be by system validation, output port is closed by control switch, heating system is in holding state.
LCD shields demonstration: the initialization of central processing system MCU circuit shows all characters, and preceding output temperature and the present output temperature of demonstration last time shutdown reaches the air quantity that will export at present successively then.
Control switch K2 to the second gear is put, and power supply makes voltage through D8, R24, R26 rectification step-down after the filtering of Z2 voltage stabilizing and R27, C9 forms the 5V master of a voltage stabilizing.Central processing system MCU circuit 10 scans this main voltage that makes, start main heating port, R3, Q2 in main heating control triggering electric circuit 9, the pulse conditioning of C2 trigger T2, principal current is through the first contact F of K2, main electrical heating elements heats up according to the temperature value of setting, monitor in the thermocouple circuit 4 that the temperature-sensing element RV1 that heats up produces an aanalogvoltage that is directly proportional with temperature according to outlet temperature, after thermocouple voltages amplifying circuit 15 amplifies, form 0～5V aanalogvoltage, monitor in real time as the difference correction of actual temperature and preferred temperature at the C7 two ends.
LCD shields demonstration: on the content basis of displaying contents based on one grade of control switch, show actual temperature, rise by temperature lifting key K10 temperature, press for a long time K10 then temperature be that unit is up to 630 ℃ of the upper limits with 10 ℃; By temperature decline key K5 then temperature descend, press for a long time K5 then temperature be unit by 10 ℃, drop to 50 ℃ of lower limit temperatures.
The air quantity button then is same as the position of K2 to the first grade of control switch.
T key and S key, being positioned at first grade or second gear at control switch puts, select among individual shortcut operator scheme code A or B, C, D, the E one by the T key, by K10 or K5 temperature is set on the rational numerical, and can revise institute's required airflow, and press the S key after two project match operation persons' the custom, then individual pattern swift to operate is promptly remembered, this operation can be revised many times, finally keeps five newest mode.
Control switch K2 is to the third gear position, and to the short circuit of T1, K, the A utmost point, logical rear fan directly starts with strong wind wind, other outputs are not in holding state by percussion because of port, therefore export about 50 ℃ low temperature, if under this state by any key then export and pulled the trigger, change the hot blast output state over to.
LCD shows: control switch is positioned at the LCD displaying contents of third gear position and puts based on second grade of the control switch K2 and first gear.Heating shows when not pulled the trigger that being same as first gear puts demonstration; Heating is shown that by the back of living by thump being same as control switch second gear with operation puts, but selects the air quantity pattern this moment, but air quantity control is cut, keeps maximum quantity of wind.
Claims (3)
1. numerical control hot-blast gun, the circuit of this heat gun comprises LCD screen and LCD drive circuit (1), power switch circuit (2), system power supply circuit (3), thermocouple circuit (4), power of fan control triggering electric circuit (6), fan power supply circuit (8), leads heating control triggering electric circuit (9), thermocouple voltages amplifying circuit (15), keyboard input circuit (16), it is characterized in that blower fan EMC filtrate circuit (7) is connected with fan power supply circuit (8); Central processing system MCU circuit (10) connects plastic and filters holding circuit (11); The deferent segment that thermocouple failure detector circuit (12) connects is connected with central processing system MCU circuit (10); Main electrical heating elements is connected with the two-way controlled member anode of main heating; The data communication end of personal settings temporary file eeprom circuit (14) connects central processing system MCU circuit (10); Major control data storehouse eeprom circuit (13) is connected with personal settings temporary file eeprom circuit (14).
2. numerical control hot-blast gun according to claim 1, it is characterized in that major control data storehouse eeprom circuit (13) and personal settings temporary file eeprom circuit (14) carry out the Temperature Fuzzy Control analysis to collecting temperature, data input central processing system MCU circuit (10) are connected with the circuit of actual temperature in LCD screen display setting temperature.
3. numerical control hot-blast gun according to claim 1 is characterized in that central processing system MCU circuit (10) and heating master make circuit (5) be connected; Central processing system MCU circuit (10) filters holding circuit (11) with plastic and is connected; Thermocouple failure detector circuit (12) is connected with the thermocouple disconnection protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151292U CN201100755Y (en) | 2007-09-14 | 2007-09-14 | Digital control thermal wind gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201151292U CN201100755Y (en) | 2007-09-14 | 2007-09-14 | Digital control thermal wind gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100755Y true CN201100755Y (en) | 2008-08-13 |
Family
ID=39937288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201151292U Expired - Fee Related CN201100755Y (en) | 2007-09-14 | 2007-09-14 | Digital control thermal wind gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100755Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887236A (en) * | 2018-09-11 | 2020-03-17 | 深圳市国王科技有限公司 | Battery pack portable numerical control display hot air gun control circuit system and control method thereof |
-
2007
- 2007-09-14 CN CNU2007201151292U patent/CN201100755Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887236A (en) * | 2018-09-11 | 2020-03-17 | 深圳市国王科技有限公司 | Battery pack portable numerical control display hot air gun control circuit system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20120914 |