CN104747505A - Internal-rotation type low-noise fan - Google Patents
Internal-rotation type low-noise fan Download PDFInfo
- Publication number
- CN104747505A CN104747505A CN201410334969.2A CN201410334969A CN104747505A CN 104747505 A CN104747505 A CN 104747505A CN 201410334969 A CN201410334969 A CN 201410334969A CN 104747505 A CN104747505 A CN 104747505A
- Authority
- CN
- China
- Prior art keywords
- motor
- fan
- hood
- noise
- type low
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/50—Control logic embodiments
- F05D2270/52—Control logic embodiments by electrical means, e.g. relays or switches
Abstract
The invention relates to an internal-rotation type low-noise fan which comprises a fan cover. A first motor is longitudinally arranged at the upper end of the fan cover, a motor bin is arranged in the fan cover, an electric fan body matched with the motor bin is fixedly connected in the motor bin, a drive shaft at the lower end of the first motor penetrates through the upper wall of the fan cover from top to bottom and is fixedly connected with the upper wall of the motor bin, a gap exists between the lower surface of the motor bin and the inner wall of the fan cover, a control device used for controlling the first motor is fixedly connected to the outer surface of the fan cover, a timing switch electrically connected with the first motor, a time delay switch, a microprocessor electrically connected with the electric fan body, and a power device used for supplying power to the microprocessor, the timing switch and the time delay switch are arranged in the control device, and the time delay switch is electrically connected with the microprocessor. According to the internal-rotation type low-noise fan, the fan is automatically controlled through the control device to change the position of the internal electric fan body according to time, so that the noise of the fan at day and night is changed, and the intelligent noise reducing capability of the fan is improved.
Description
Technical field
The present invention relates to a kind of internal rotation type low-noise fan.
Background technique
Low-noise fan in the market adopts the mode of passive noise reduction to reduce the noise of fan mostly, the noise of fan is mainly reflected in sound of the wind, motor sound and the sound produced that resonates, because current fan is fixed structure mostly, active noise reduction cannot be carried out by changing position of fan according to the change of time, very not intelligent.
Summary of the invention
The technical problem to be solved in the present invention is: for solving above-mentioned Problems existing, provides a kind of internal rotation type low-noise fan, and solving common low-noise fan cannot the problem of intelligent active noise reduction.
The technical solution adopted for the present invention to solve the technical problems is: a kind of internal rotation type low-noise fan, comprise hood, hood upper end is vertically arranged with the first motor, hood inside is provided with motor room, motor room internal fixtion is connected with the electric fan matched with motor room, first motor lower end transmission shaft is fixedly connected with motor room upper wall through hood upper wall from top to bottom, gap is there is between motor room lower surface and hood inwall, hood outer surface is fixedly connected with the control gear for controlling the first motor, the time switch be electrically connected with the first motor is provided with in control gear, delay switch, the microprocessor be electrically connected with electric fan and for give microprocessor, the power supply unit that time switch and delay switch are powered, delay switch is electrically connected with microprocessor.
Further, conveniently rotate, electric fan length is less than hood inner diameter length.
Further, in order to more quiet, hood inwall is provided with Sound-proof material.
Further, in order to more quiet, the first motor is wrapped with puigging.
The invention has the beneficial effects as follows, internal rotation type low-noise fan of the present invention controls by control gear fan to change inner electric fan position according to the time automatically, thus changes the noise of fan round the clock, promotes the Intelligent noise reduction ability of fan.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is front view of the present invention.
1. hoods in figure, 2. the first motor, 3. motor room, 4. electric fan, 5. control gear.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of internal rotation type low-noise fan as depicted in figs. 1 and 2, comprise hood 1, hood 1 upper end is vertically arranged with the first motor 2, hood 1 inside is provided with motor room 3, motor room 3 internal fixtion is connected with the electric fan 4 matched with motor room 3, first motor 2 lower end transmission shaft is fixedly connected with motor room 3 upper wall through hood 1 upper wall from top to bottom, gap is there is between motor room 3 lower surface and hood 1 inwall, hood 1 outer surface is fixedly connected with the control gear 5 for controlling the first motor 2, the time switch be electrically connected with the first motor 2 is provided with in control gear 5, delay switch, the microprocessor be electrically connected with electric fan 4 and for give microprocessor, the power supply unit that time switch and delay switch are powered, delay switch is electrically connected with microprocessor, first motor 2 according to time switch control in the morning 6 and evening 10 automatic operations, time switch controls delay switch simultaneously and starts working, delay switch controls automatically to cut out after the first motor 2 rotating shaft rotates 180 °, and time switch sends signal to microprocessor simultaneously, Microprocessor S3C44B0X electric fan quits work, signal is sent to microprocessor while delay switch cuts out the first motor 2, microprocessor starts counterrotating according to the SC sigmal control electric fan 4 of delay switch, thus realize the flabellum of electric fan 4 to rotate near outside daytime, rotate to the function of internal work night.
Further, conveniently rotate, electric fan 4 length is less than hood 1 inner diameter length, further, in order to more quiet, hood 1 inwall is provided with Sound-proof material, further, in order to more quiet, first motor 2 is wrapped with puigging, internal rotation type low-noise fan of the present invention controls by control gear 5 fan to change inner electric fan 4 position according to the time automatically, thus changes the noise of fan round the clock, promotes the Intelligent noise reduction ability of fan.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. an internal rotation type low-noise fan, comprise hood (1), it is characterized in that: described hood (1) upper end is vertically arranged with the first motor (2), hood (1) inside is provided with motor room (3), described motor room (3) internal fixtion is connected with the electric fan (4) matched with motor room (3), described the first motor (2) lower end transmission shaft is fixedly connected with motor room (3) upper wall through hood (1) upper wall from top to bottom, gap is there is between described motor room (3) lower surface and hood (1) inwall, described hood (1) outer surface is fixedly connected with the control gear (5) for controlling the first motor (2), the time switch be electrically connected with the first motor (2) is provided with in described control gear (5), delay switch, the microprocessor be electrically connected with electric fan (4) and for give microprocessor, the power supply unit that time switch and delay switch are powered, described delay switch is electrically connected with microprocessor.
2. internal rotation type low-noise fan according to claim 1, is characterized in that: described electric fan (4) length is less than hood (1) inner diameter length.
3. internal rotation type low-noise fan according to claim 1, is characterized in that: described hood (1) inwall is provided with Sound-proof material.
4. internal rotation type low-noise fan according to claim 1, is characterized in that: described the first motor (2) is wrapped with puigging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334969.2A CN104747505A (en) | 2014-07-14 | 2014-07-14 | Internal-rotation type low-noise fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334969.2A CN104747505A (en) | 2014-07-14 | 2014-07-14 | Internal-rotation type low-noise fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747505A true CN104747505A (en) | 2015-07-01 |
Family
ID=53587641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410334969.2A Pending CN104747505A (en) | 2014-07-14 | 2014-07-14 | Internal-rotation type low-noise fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747505A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423658A (en) * | 1993-11-01 | 1995-06-13 | General Electric Company | Active noise control using noise source having adaptive resonant frequency tuning through variable ring loading |
| CN1676945A (en) * | 2004-04-02 | 2005-10-05 | 埃米特克有限公司 | Fan-motor assembly with noise dampening |
| CN102536869A (en) * | 2012-02-15 | 2012-07-04 | 浙江大学 | Smart voice-control safety vertical electric fan with infrared positioning function |
| CN203847423U (en) * | 2014-04-30 | 2014-09-24 | 常州市盈能电气有限公司 | Internal rotation type low-noise fan |
-
2014
- 2014-07-14 CN CN201410334969.2A patent/CN104747505A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423658A (en) * | 1993-11-01 | 1995-06-13 | General Electric Company | Active noise control using noise source having adaptive resonant frequency tuning through variable ring loading |
| CN1676945A (en) * | 2004-04-02 | 2005-10-05 | 埃米特克有限公司 | Fan-motor assembly with noise dampening |
| CN102536869A (en) * | 2012-02-15 | 2012-07-04 | 浙江大学 | Smart voice-control safety vertical electric fan with infrared positioning function |
| CN203847423U (en) * | 2014-04-30 | 2014-09-24 | 常州市盈能电气有限公司 | Internal rotation type low-noise fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |