CN204126928U - A kind of can the pipeline fan of automatic speed regulation - Google Patents
A kind of can the pipeline fan of automatic speed regulation Download PDFInfo
- Publication number
- CN204126928U CN204126928U CN201420561216.0U CN201420561216U CN204126928U CN 204126928 U CN204126928 U CN 204126928U CN 201420561216 U CN201420561216 U CN 201420561216U CN 204126928 U CN204126928 U CN 204126928U
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- casing
- speed regulation
- automatic speed
- pipeline fan
- controller
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Abstract
The utility model refer in particular to a kind of can the pipeline fan of automatic speed regulation, belong to ventilation equipment technical field, comprise casing, casing one end is intake grill, and the other end is exhaust outlet, casing arranged outside has terminal box, inside is provided with motor, and described motor comprises front cover, rear end cover, stator, rotor and main shaft, and described front cover is provided with controller, described controller is electrically connected with described terminal box, is provided with temperature transducer, comparator, pulse width modulator and dsp processor in described controller.The utility model stabilization of speed, is not easy by external interference, and use speed closed loop to control, so stability strengthens greatly, rotating speed can not be subject to the interference of environmental change substantially, and therefore, the air quantity of blower fan is also highly stable; Rotating speed can regulate as required, and when user requires the existence up and down of air force or temperature, this programme can realize, to the adjustment of rotation speed of fan, reaching user's request with prestissimo.
Description
Technical field
The utility model belongs to ventilation equipment technical field, refer in particular to a kind of can the pipeline fan of automatic speed regulation.
Background technique
At present, round pipeline fan uses external rotor Induction Motor Drive, there is following several aspect not enough: 1, efficiency has much room for improvement, and induction machine is due to the structural feature of itself, determine its efficiency not higher than 60%, this index does not reach European Union ERP2015 standard far away; 2, mechanical property is hard not enough, the mechanical property of induction machine is soft or hard, and determined by its rotor resistance, rotor resistance is less, mechanical property is harder, but rotor resistance is too little can reduce detent torque again, therefore the mechanical property of induction machine can not be too hard, and the not hard consequence of mechanical property is: when pipeline pressure changes, motor speed also can alter a great deal, cause pipe network changes in flow rate very large, this change is not desired by user, and this is unfavorable for that user uses very much; 3, can not speed governing in time, when user's air requirement changes, induction machine cannot speed governing in time, so cannot regulate air quantity in time.
Summary of the invention
The purpose of this utility model is to provide a kind of energy-conservation, stabilization of speed, and what be not subject to external environment condition interference can the pipeline fan of automatic speed regulation.
The purpose of this utility model be achieved in that a kind of can the pipeline fan of automatic speed regulation, comprise casing, casing one end is intake grill, and the other end is exhaust outlet, and casing arranged outside has terminal box, inside is provided with motor, described motor comprises front cover, rear end cover, stator, rotor and main shaft, wherein, described front cover is provided with controller, described controller is electrically connected with described terminal box, is provided with temperature transducer, comparator, pulse width modulator and dsp processor in described controller.When temperature sensor senses is to indoor temperature change generated in case, signal is input to comparator, when temperature is higher than setting value 1 or lower than setting value 2, signal is delivered to pulse width modulator by comparator, the corresponding increasing of pulse width modulator or minimizing pulsewidth, pulse width signal sends into dsp processor, the switching time of dsp processor control IGBT and the size of input current, thus the regulable control realized rotating speed, the wherein compound full-control type voltage driven type power semiconductor that is made up of BJT (double pole triode) and MOS (insulating gate type field effect tube) of IGBT, have the advantage of the high input impedance of MOSFET and low conduction voltage drop two aspect of GTR concurrently.
According to upper described a kind of can the pipeline fan of automatic speed regulation, wherein, described stator is connected by interference fit with main shaft, described rotor is sheathed on described stator, and with two end cap by seam interference fit, described rotor is provided with wind wheel, external efficiency and the air output improving motor of rotor.
According to upper described a kind of can the pipeline fan of automatic speed regulation, wherein, described casing is made up of two-part, be divided into front shroud and back cover, described front shroud is fixedly connected with by screw with back cover, improves the efficiency of assembling, and be convenient to dismounting during later period maintenance, described exhaust outlet is arranged on front shroud, and described intake grill is arranged on back cover, and described motor is positioned at described back cover.
According to upper described a kind of can the pipeline fan of automatic speed regulation, wherein, be provided with bearing in end cap described in two, described bearing housing is located on described main shaft, and end cap and rotor together rotate, and can reduce surface friction drag by bearing, and raising rotation efficiency, increases the service life.
The utility model gives prominence to compared to existing technology and useful technique effect is: 1, stabilization of speed, is not easy by external interference, uses speed closed loop to control, so stability strengthens greatly, rotating speed can not be subject to the interference of environmental change substantially, and therefore, the air quantity of blower fan is also highly stable;
2, rotating speed can regulate as required, and when user requires the existence up and down of air force or temperature, this programme can realize, to the adjustment of rotation speed of fan, reaching user's request with prestissimo.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 10-casing, 11-terminal box, 12-motor, 13-exhaust outlet, 14-intake grill, 15-front shroud, 16-back cover, 17-wind wheel, 18-controller, 19-wire, 20-fixed plate, 21-screw.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1: a kind of can the pipeline fan of automatic speed regulation, comprise casing 10, casing 10 one end is intake grill 14, the other end is exhaust outlet 13, casing 10 arranged outside has terminal box 11, inside is provided with motor 12, motor 12 is magneto, the efficiency of magneto can reach about 85%, more than 25% is exceeded than induction machine efficiency, so energy-saving effect is obvious, described motor 12 comprises front cover, rear end cover, stator, rotor and main shaft, described stator is connected by interference fit with main shaft, described rotor is sheathed on described stator, and with two end cap by seam interference fit, described rotor is provided with wind wheel 17, external efficiency and the air output improving motor of rotor, bearing is provided with in end cap described in two, described bearing housing is located on described main shaft, end cap and rotor together rotate, surface friction drag can be reduced by bearing, improve rotation efficiency, increase the service life.Described casing 10 is specifically made up of two-part, be divided into front shroud 15 and back cover 16, described front shroud 15 is fixedly connected with by screw 21 with back cover 16, improve the efficiency of assembling, and be convenient to dismounting during later period maintenance, described exhaust outlet 13 is arranged on front shroud 15, and described intake grill 14 is arranged on back cover 16, and described motor 12 is positioned at described back cover 16.
Described front cover is provided with controller 18, described controller 18 is electrically connected by wire 19 with described terminal box 11, is provided with temperature transducer, comparator, pulse width modulator and dsp processor in described controller 18.When temperature sensor senses is to indoor temperature change generated in case, signal is input to comparator, when temperature is higher than setting value 1, signal is delivered to pulse width modulator by comparator, the corresponding increasing pulsewidth of pulse width modulator, pulse width signal sends into dsp processor, and dsp processor extends the switching time of IGBT and increases input current, thus improves rotating speed; When temperature is lower than setting value 2, signal is delivered to pulse width modulator by comparator, the corresponding minimizing pulsewidth of pulse width modulator, pulse width signal sends into dsp processor, dsp processor shortens the switching time of IGBT and reduces input current, thus reduction rotating speed, wherein the compound full-control type voltage driven type power semiconductor that is made up of BJT (double pole triode) and MOS (insulating gate type field effect tube) of IGBT, has the advantage of the high input impedance of MOSFET and low conduction voltage drop two aspect of GTR concurrently.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (4)
1. one kind can the pipeline fan of automatic speed regulation, comprise casing, casing one end is intake grill, the other end is exhaust outlet, and casing arranged outside has terminal box, and inside is provided with motor, described motor comprises front cover, rear end cover, stator, rotor and main shaft, it is characterized in that: described front cover is provided with controller, described controller is electrically connected with described terminal box, is provided with temperature transducer, comparator, pulse width modulator and dsp processor in described controller.
2. according to claim 1 a kind of can the pipeline fan of automatic speed regulation, it is characterized in that: described stator is connected by interference fit with main shaft, described rotor is sheathed on described stator, and with two end cap by seam interference fit, described rotor is provided with wind wheel.
3. according to claim 1 a kind of can the pipeline fan of automatic speed regulation, it is characterized in that: described casing is made up of two-part, be divided into front shroud and back cover, described front shroud is fixedly connected with by screw with back cover, described exhaust outlet is arranged on front shroud, described intake grill is arranged on back cover, and described motor is positioned at described back cover.
4. according to claim 1 a kind of can the pipeline fan of automatic speed regulation, it is characterized in that: be provided with bearing in end cap described in two, described bearing housing is located on described main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561216.0U CN204126928U (en) | 2014-09-26 | 2014-09-26 | A kind of can the pipeline fan of automatic speed regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561216.0U CN204126928U (en) | 2014-09-26 | 2014-09-26 | A kind of can the pipeline fan of automatic speed regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126928U true CN204126928U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420561216.0U Expired - Fee Related CN204126928U (en) | 2014-09-26 | 2014-09-26 | A kind of can the pipeline fan of automatic speed regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107430A (en) * | 2015-09-17 | 2015-12-02 | 扬中市神洲化工电力设备有限公司 | Far-infrared radiation electric heating device special for autoclave for producing potassium permanganate |
| CN107747555A (en) * | 2017-10-17 | 2018-03-02 | 珠海格力电器股份有限公司 | Blower control method, controller, control device and wall-hung boiler and gas heater |
| CN108412790A (en) * | 2018-03-16 | 2018-08-17 | 昆山斯莱姆节能科技有限公司 | Multifunctional intellectual pipeline fan |
-
2014
- 2014-09-26 CN CN201420561216.0U patent/CN204126928U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107430A (en) * | 2015-09-17 | 2015-12-02 | 扬中市神洲化工电力设备有限公司 | Far-infrared radiation electric heating device special for autoclave for producing potassium permanganate |
| CN107747555A (en) * | 2017-10-17 | 2018-03-02 | 珠海格力电器股份有限公司 | Blower control method, controller, control device and wall-hung boiler and gas heater |
| CN108412790A (en) * | 2018-03-16 | 2018-08-17 | 昆山斯莱姆节能科技有限公司 | Multifunctional intellectual pipeline fan |
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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: 20150128 Termination date: 20160926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |