CN102032610B - Direct current frequency-variable stepless speed regulation range hood - Google Patents
Direct current frequency-variable stepless speed regulation range hood Download PDFInfo
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Abstract
The invention discloses a direct current frequency-variable stepless speed regulation rang hood, comprising a rang hood shell, a fan and an electric control part, wherein the fan and the electric control part are arranged in the rang hood shell. The invention is characterized in that the electric control part is mainly composed of an operation control panel, a power control panel, a direct current frequency-variable driver module and a direct current motor. The power control panel is connected with a display control plate, the direct current frequency-variable driver module is arranged in the shell of the motor, and is integrated with the direct current motor into a whole, and the lead interface CON7 of the direct current motor is connected with the CON 3 interface of the power control panel. The invention has the advantages of energy conservation, small power consumption, high efficiency, adjustable rotation speed, and large torque range, and can realize stepless speed regulation, stable rotation speed and low noise, and is environment-friendly. The actual rotation speed can be displayed by a display.
Description
Technical field
The present invention relates to range hood technical field, relate to a kind of direct current frequency-variable stepless speed regulation range hood more specifically.
Background technology
At present, the range hood that people are used in daily life and the motor that ventilating fan uses, be all generally use alternating current generator, this motor power consumption is large, and efficiency is low.During this machine operation, the rotating speed of motor is generally divided into two grades or third gear, and rotating speed gear is less, can not accomplish stepless speed regulation.Adopt the range hood of direct current frequency-variable stepless speed regulation motor compared with market using the range hood of alternating current generator, its major advantage is environmental protection and energy saving, and power consumption is little, and efficiency is high; Adjustable rotating speed, torque range are large, can realize stepless speed regulation.If Chinese Patent Application No. is 200620125645.9, denomination of invention is a kind of brush DC variable frequency control stepless speed regulation cooker hood, comprise power panel, control panel, guidance panel, motor and peripheral circuit, control panel is connected with operation panel circuit, it is characterized in that: described power panel adopts high-pressure frequency-conversion driver module; Described guidance panel is human body induction panel, and human body sensing panel to be connected with high-pressure frequency-conversion driver module by two groups of control sensor and control panel and to control; Described motor adopts DC brushless motor.Said structure, due to DC driven, improves efficiency, reduces energy consumption.In addition, control due to induction can be realized, thus more convenient during operation, but specific embodiment is not proposed, can not meet the operational requirements of user.
Summary of the invention
Object of the present invention is exactly deficiency in order to solve prior art and the one provided is simple and reasonable, environmental protection and energy saving, and power consumption is little, and efficiency is high, adjustable rotating speed, torque range are large, can realize stepless speed regulation, rotating speed is steady, the direct current frequency-variable stepless speed regulation range hood that noise is low.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of direct current frequency-variable stepless speed regulation range hood, comprise the blower fan of range hood shell and interior setting thereof, automatically controlled part, it is characterized in that, described automatically controlled part is primarily of operation control panel, power board, DC frequency-changing driver module and direct current generator composition, power board connects the control panel with display screen, DC frequency-changing driver module is arranged on electric machine casing inside, one is formed with direct current generator, be connected with the CON3 interface on power board by direct current generator lead-out wire interface CON7.
Further illustrating as such scheme, arranges interface CON1, CON2, CON3, CON4 (CON5), CON6, CON7 corresponding power AC220V input, operation control connection end (power panel input), motor terminals (power panel output), illumination output, operation control connection end (output) and motor terminals (input) respectively in described power board, display control board and DC frequency-changing driver module; Interface CON2 is connected with interface CON6, and interface CON3 is connected with interface CON7; Be provided with Master control chip U2 in display control panel, the pin of Master control chip U2 be connected with the I/O port pin extended chip U1 as key indicator lamp, display screen and the I/O port pin extended chip U3 as function control operation button.
Be provided with pin VSS, GND, VCC and FG in described direct current generator lead-out wire interface CON7, VSS connects motor operating voltage DC310V; GND is working earthing; VCC connects motor drive operational voltage; VSP connects motor speed control signal voltage; FG is access motor speed signal.
Described power supply AC220V is inputted by the interface CON1 on power board, and wherein a road becomes DC voltage DC310V via relay K 1, filter inductance T2 and T3, DB3 bridge rectifier; Be input to DC frequency-changing driver module by 1,3 pin of interface CON3 and 1,3 of interface CON7, become direct current generator operating voltage by after the process of DC frequency-changing driver module; Another road is via isolating transformer T1.
The power input of described power board is provided with isolating transformer T1, control voltage is point two-way isolation and amplifier after isolating transformer T1 transformation, wherein become DC15V (i.e. VCC) through U8 voltage stabilizing after a route DB1 bridge rectifier, be input to DC frequency-changing driver module by the 4th pin of interface CON3 and the 4th pin of interface CON7; Another road becomes after DC12V for relay, illuminating lamp are powered and provide Master control chip power supply through U7 voltage stabilizing after DB2 bridge rectifier.
Describedly be provided with multiple function control operation button as in the I/O port pin extended chip U3 of function control operation button, the operating function of each operation push-button is after touch control chip U3, there is provided input control signal by U3 to Master control chip U2, after Master control chip U2 process, export control signal perform corresponding function.
19th pin of described Master control chip U2 is motor speed control signal voltage output pin, be connected with the 3rd of Energy control plate interface CON2 by the 3rd pin of interface CON6, after the U5 chip on power panel, be connected with the 5th pin of interface CON7 by the 5th pin of interface CON3, be input to the rotating speed that DC frequency-changing driver module controls motor; The tach signal of motor is connected with the 6th pin of interface CON3 by the 6th pin of interface CON7, after the U6 chip on power board, is connected by the 4th pin of CON2 with the 4th pin of CON6, is input to the 18th pin of Master control chip; Through the program of Master control chip, after the data that the rotating speed number of former setting and Master control chip the 18th pin feed back compare, then adjust the motor speed control signal output voltage of Master control chip the 19th pin.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
Compared with the present invention adopts the range hood of direct current frequency-variable stepless speed regulation motor and market uses the range hood of alternating current generator, its major advantage is: 1, environmental protection and energy saving, and power consumption is little, and efficiency is high; 2, adjustable rotating speed, torque range greatly, can realize stepless speed regulation; 3, rotating speed is steady; 4, noise is low; 5, motor actual speed can be shown by display screen.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional structure schematic diagram of the present invention;
Fig. 3 is circuit of the present invention former road block diagram;
Fig. 4 is circuit diagram of the present invention.
Description of reference numerals: 1, operation control panel 2, power board 3, DC frequency-changing driver module 4, direct current generator 5, display control board 6, range hood shell 7, blower fan
Detailed description of the invention
As shown in Figure 1 to 4, a kind of direct current frequency-variable stepless speed regulation range hood, be made up of structure division and automatically controlled part, structure division comprises the blower fan 7 of range hood shell 6 and interior setting thereof, automatically controlled part forms primarily of operation control panel 1, power board 2, DC frequency-changing driver module 3 and direct current generator 4, power board 2 is connected with display control board 5, DC frequency-changing driver module 3 is arranged on electric machine casing inside, form one with direct current generator, be connected with the CON3 interface on power board by lead-out wire interface CON7.Wherein VSS is motor operating voltage DC310V; GND is working earthing; VCC is motor drive operational voltage; VSP is motor speed control signal voltage, the rotating speed that the corresponding motor of its different magnitude of voltage is different; FG is motor speed signal.
Interface CON1, CON2, CON3, CON4 (CON5), CON6, CON7 are power supply AC220V input, operation control connection end (power panel input), motor terminals (power panel output), illumination output, operation control connection end (output), motor terminals (input) respectively; Interface CON2 is connected with interface CON6, and interface CON3 is connected with interface CON7; The I/O port pin extended chip that U1 is key indicator lamp, display screen is connected with U2, U2 is Master control chip, and U3 is the I/O port pin extended chip that function control operation button is connected with Master control chip U2.
Power supply AC220V is inputted by the interface CON1 on power board, and wherein a road becomes DC voltage DC310V (i.e. VSS) via relay K 1, filter inductance T2 and T3, DB3 bridge rectifier; Be input to DC frequency-changing driver module by 1,3 pin of interface CON3 and 1,3 of interface CON7, become direct current generator operating voltage by after the process of DC frequency-changing driver module; Another road is via isolating transformer T1.
Control voltage is point two-way isolation and amplifier after isolating transformer T1 transformation, wherein becomes DC15V (i.e. VCC) through U8 voltage stabilizing after a route DB1 bridge rectifier, is input to DC frequency-changing driver module by the 4th pin of interface CON3 and the 4th pin of interface CON7; Another road becomes after DC12V for relay, illuminating lamp are powered and provide Master control chip power supply through U7 voltage stabilizing after DB2 bridge rectifier.
Function control operation button has: " wind speed+, motor, switch, illumination, ventilation, wind speed-" six press keys, the operating function of each operation push-button is after touch control chip U3, there is provided input control signal by U3 to Master control chip U2, after Master control chip U2 process, export control signal perform corresponding function.19th pin of Master control chip U2 is motor speed control signal voltage output pin, be connected with the 3rd of Energy control plate interface CON2 by the 3rd pin of interface CON6, after the U5 chip on power panel, be connected with the 5th pin of interface CON7 by the 5th pin of interface CON3, be input to the rotating speed that DC frequency-changing driver module controls motor; The tach signal of motor is connected with the 6th pin of interface CON3 by the 6th pin of interface CON7, after the U6 chip on power board, is connected by the 4th pin of CON2 with the 4th pin of CON6, is input to the 18th pin of Master control chip; Through the program of Master control chip, after the data that the rotating speed number of former setting and Master control chip the 18th pin feed back compare, then adjust the motor speed control signal output voltage of Master control chip the 19th pin, thus make the rotating speed of motor keep homeostasis.
In use procedure, user only need operate and control button corresponding on button, the function signal that button is corresponding is input to master controller, after the CPU process of master controller, output motor tach signal controls the rotating speed of motor, and the tach signal of motor feeds back to master controller through motor speed testing circuit, master controller according to the rotating speed of feedback signal determination motor and the rotating speed of actual set whether consistent, then output motor speed controling signal is finely tuned as inconsistent, until actual speed and setting speed completely the same, master controller also outputs signal to the actual speed number of motor when showing screen display simultaneously.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (1)
1. a direct current frequency-variable stepless speed regulation range hood, comprise the blower fan of range hood shell and interior setting thereof, automatically controlled part, it is characterized in that, described automatically controlled part forms primarily of operation control panel, power board, DC frequency-changing driver module and direct current generator, power board is connected with display control board, DC frequency-changing driver module is arranged on electric machine casing inside, forms one, be connected by direct current generator lead-out wire interface CON7 with the CON3 interface on power board with direct current generator; In described power board, display control board and DC frequency-changing driver module, interface CON1, CON2, CON3, CON4, CON5, CON6, CON7 are set, interface CON1 corresponding power AC220V input, interface CON2 respective operations control connection end, the corresponding motor terminals of interface CON3, each corresponding illumination output of interface CON4, CON5, interface CON6 respective operations control connection end, the corresponding motor terminals of interface CON7; Interface CON2 is connected with interface CON6, and interface CON3 is connected with interface CON7; Be provided with Master control chip U2 in display control board, the pin of Master control chip U2 be connected with the I/O port pin extended chip U1 as key indicator lamp, display screen and the I/O port pin extended chip U3 as function control operation button; Pin VSS, GND, VCC, VSP and FG is provided with in described direct current generator lead-out wire interface CON7, VSS connects motor operating voltage DC310V, and GND is working earthing, and VCC connects motor drive operational voltage, VSP connects motor speed control signal voltage, and FG is access motor speed signal; Power supply AC220V is inputted by the interface CON1 on power board, and wherein a road becomes DC voltage DC310V via relay K 1, filter inductance T2 and T3, bridge rectifier D B3 bridge rectifier; Be input to DC frequency-changing driver module by 1,3 pin of interface CON3 and 1,3 pin of interface CON7, become direct current generator operating voltage by after the process of DC frequency-changing driver module; Another road is via isolating transformer T1; The power input of described power board is provided with isolating transformer T1, control voltage is point two-way isolation and amplifier after isolating transformer T1 transformation, wherein become DC15V through the voltage stabilizing of U8 chip after a route bridge rectifier DB1 bridge rectifier, be input to DC frequency-changing driver module by the 4th pin of interface CON3 and the 4th pin of interface C0N7; Another road after bridge rectifier D B2 bridge rectifier after the voltage stabilizing of U7 chip becomes DC12V for relay K 1, illuminating lamp are powered and provide Master control chip power supply; Describedly be provided with multiple function control operation button as in the I/O port pin extended chip U3 of function control operation button, the operating function of each operation push-button is after touch control chip U3, there is provided input control signal by touch control chip U3 to Master control chip U2, after Master control chip U2 process, export control signal perform corresponding function; 19th pin of described Master control chip U2 is motor speed control signal voltage output pin, be connected with the 3rd pin of Energy control plate interface CON2 by the 3rd pin of interface CON6, after the U5 chip on power panel, be connected with the 5th pin of interface CON7 by the 5th pin of interface CON3, be input to the rotating speed that DC frequency-changing driver module controls motor; The tach signal of motor is connected with the 6th pin of interface CON3 by the 6th pin of interface CON7, after the U6 chip on power board, is connected by the 4th pin of CON2 with the 4th pin of CON6, is input to the 18th pin of Master control chip U2; Through the program of Master control chip U2, after the data that the rotating speed number of former setting and Master control chip U2 the 18th pin feed back compare, then adjust the motor speed control signal output voltage of Master control chip U2 the 19th pin;
Operation controls button corresponding on button, the function signal that button is corresponding is input to master controller, after the CPU process of master controller, output motor tach signal controls the rotating speed of motor, and the tach signal of motor feeds back to master controller through motor speed testing circuit, master controller according to the rotating speed of feedback signal determination motor and the rotating speed of actual set whether consistent, then output motor speed controling signal is finely tuned as inconsistent, until actual speed and setting speed completely the same, simultaneously master controller also outputs signal to the actual speed number of display screen display motor.
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CN102777952A (en) * | 2011-05-11 | 2012-11-14 | 浙江帅康电气股份有限公司 | Range hood with rotation speed display |
CN102664570B (en) * | 2012-04-27 | 2016-03-09 | 海尔集团公司 | Lampblack absorber |
CN204026789U (en) * | 2014-08-12 | 2014-12-17 | 中山大洋电机股份有限公司 | A kind of fume exhauster system |
CN111853891B (en) * | 2020-07-06 | 2022-01-21 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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CN2510761Y (en) * | 2001-11-12 | 2002-09-11 | 海尔集团公司 | Frequency-conversion controlled stepless speed-regulation type cooking-fume exhauster |
CN2874922Y (en) * | 2005-12-28 | 2007-02-28 | 海尔集团公司 | Variable frequency fume exhaust fan |
TWI314811B (en) * | 2006-08-25 | 2009-09-11 | Cheng Uei Prec Ind Co Ltd | Direct current motor controlling method |
CN200979235Y (en) * | 2006-12-06 | 2007-11-21 | 江苏光芒厨卫太阳能科技有限公司 | DC brushless frequency-conversion controlled stepless speed-regulating type smoke exhaust ventilator |
CN101900364A (en) * | 2010-07-26 | 2010-12-01 | 江苏光芒厨卫太阳能科技有限公司 | DC frequency conversion range hood |
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