CN201779732U - Direct-current variable-frequency range hood - Google Patents
Direct-current variable-frequency range hood Download PDFInfo
- Publication number
- CN201779732U CN201779732U CN2010202697436U CN201020269743U CN201779732U CN 201779732 U CN201779732 U CN 201779732U CN 2010202697436 U CN2010202697436 U CN 2010202697436U CN 201020269743 U CN201020269743 U CN 201020269743U CN 201779732 U CN201779732 U CN 201779732U
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- motor
- frequency
- variable
- range hood
- control system
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Abstract
The utility model discloses a direct-current variable-frequency range hood which comprises a main body of the range hood, a control system and a motor (3) connected with the control system. The utility model is characterized in that the motor (3) is a three-phase brushless direct-current permanent magnet motor; the control system is a variable-frequency system which comprises an inductive control panel (1), a variable-frequency controller (2) and the motor (3); the inductive control panel (1) is connected with the variable-frequency controller (2) through a communication cable; the motor (3) is electrically connected with the variable-frequency controller (2); and a Hall position sensor which is arranged on the stator of the motor (3) is in connection with the circuit of the variable-frequency controller (2). Because a direct-current variable-frequency driving structure is adopted by the utility model, the efficiency is improved, and simultaneously, the energy consumption is reduced. In addition, because the inductive control can be realized, the operation is more convenient and quick, and the using comfort of the product is also increased.
Description
Technical field
The utility model relates to a kind of range hood, especially relates to a kind of DC frequency conversion range hood.
Background technology
At present, the energy-conservation developing direction that has become following household electrical appliances, employed range hood in people's daily life, the employed motor of draft fan generally all is an alternating current generator, smoke exhaust ventilator also belongs to the electrical equipment that all will use every day in family, though each service time is not long, because the alternating current generator efficient of using is too low at present, energy consumption is still very big.Even what have introduces range hood with converter technique, existing product also can only be accomplished the third gear speed governing, and rotating speed speed governing gear is very few, owing to can not accomplish stepless speed regulation, does not satisfy the choose at random requirement of user to rotating speed, in use not enough Energy and comfort.
Summary of the invention
The purpose of this utility model provides a kind of DC frequency conversion range hood, can solve the very few and technical problem of not enough in use Energy and comfort of above-mentioned range hood rotating speed speed governing gear.
The problem of the required solution of the utility model realizes by the following technical solutions: it comprises range hood main body, control system and the motor that is connected with control system, it is characterized in that described motor is the three-phase brushless direct current permanent magnet motor, described control system is a frequency conversion system, frequency conversion system is by the induction type control panel, frequency-variable controller and motor are formed, the induction type control panel is connected with frequency-variable controller by communication cable, motor and frequency-variable controller are electrically connected, and the hall position sensor that is located on the motor stator is connected with the frequency-variable controller circuit.
The structure that the utility model adopts because DC frequency-changing drives, has improved efficient, has reduced energy consumption simultaneously.In addition, owing to can realize induction control, thus more convenient during operation, also increased the comfortableness that product uses.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Accompanying drawing is depicted as structural representation of the present utility model
Among the figure 1, induction type control panel 2, frequency-variable controller 3, motor
The specific embodiment
By accompanying drawing as can be known, this DC frequency conversion range hood comprises range hood main body, control system and the motor 3 that is connected with control system, it is characterized in that described motor 3 is the three-phase brushless direct current permanent magnet motor, described control system is a frequency conversion system, frequency conversion system is by induction type control panel 1, frequency-variable controller 2 and motor 3 are formed, induction type control panel 1 is connected with frequency-variable controller 2 by communication cable, motor 3 is electrically connected with frequency-variable controller 2, and the hall position sensor that is located on motor 3 stators is connected with frequency-variable controller 2 circuit.
The utility model magneto is the motor that utilizes the excitation field of permanent magnet foundation, and its stator produces rotating excitation field, is normally made by the magnet thin slice, and the stator corresponding windings is inserted trough, does not have brush on the rotor, and commutation is finished in the electronics mode on rotor.Air-gap field is to be produced by permanent magnet, so the magnetic flux that rotor magnet produces is constant, when electronics magnetic field changed, by magneticaction, rotor will and then be turned over.The induction type control panel is visual induction operation interface, directly to the frequency-variable controller instruction that sends control information, reaches frequency-variable controller with digital signal form, after frequency-variable controller is received instruction, divides the folding command information, makes the executable operations command information.If the raising speed instruction, then controller is by the frequency conversion principle, and regulation voltage, frequency make frequency gets higher, and drive motors is accelerated.Start or stop in this way, then controller directly opens or closes relay, and frequency-variable controller sends trip information by digital communication to panel simultaneously, shows for panel system.Other rotary speed information, power information etc. all can feed back to the control panel system, realize man-machine mutual interface.
Frequency-variable controller is by detecting three Hall elements on the motor stator, and the signal in some cycles changes and calculates the running speed of motor at that time.Motor rotation is fast, and the signal of Hall element changes just fast, and correspondingly motor is if running is slow, and then the signal of Hall changes also slow.When frequency-variable controller is carried out gear-shift command, make electric current, voltage change by the switch of regulating power tube, internal magnetic field just changes, and the effect to the rotor magnetic pole is passed through in the magnetic field of variation again, and makes motor quickening or slack-off, thus the speed of crossing is regulated.The signal of Hall element variation simultaneously feeds back to controller again, and like this, when motor speed did not also reach the instruction rotating speed, controller will continue, and sent instruction, made motor lifting speed, to reach the instruction rotating speed.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other multi-form variation or changes on the basis of the above description.Here need not also can't give all embodiments exhaustive, and these belong to conspicuous variation or the change that spirit of the present utility model draws and still are among the protection domain of the present utility model.
Claims (1)
1. DC frequency conversion range hood, comprise range hood main body, control system and the motor that is connected with control system, it is characterized in that described motor is the three-phase brushless direct current permanent magnet motor, described control system is a frequency conversion system, frequency conversion system is by the induction type control panel, frequency-variable controller and motor are formed, the induction type control panel is connected with frequency-variable controller by communication cable, motor and frequency-variable controller are electrically connected, and the hall position sensor that is located on the motor stator is connected with the frequency-variable controller circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202697436U CN201779732U (en) | 2010-07-26 | 2010-07-26 | Direct-current variable-frequency range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202697436U CN201779732U (en) | 2010-07-26 | 2010-07-26 | Direct-current variable-frequency range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779732U true CN201779732U (en) | 2011-03-30 |
Family
ID=43792943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202697436U Expired - Fee Related CN201779732U (en) | 2010-07-26 | 2010-07-26 | Direct-current variable-frequency range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779732U (en) |
-
2010
- 2010-07-26 CN CN2010202697436U patent/CN201779732U/en not_active Expired - Fee Related
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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: 20110330 Termination date: 20120726 |