CN2102396U - Weak wind device of household electric fan - Google Patents
Weak wind device of household electric fan Download PDFInfo
- Publication number
- CN2102396U CN2102396U CN 91223198 CN91223198U CN2102396U CN 2102396 U CN2102396 U CN 2102396U CN 91223198 CN91223198 CN 91223198 CN 91223198 U CN91223198 U CN 91223198U CN 2102396 U CN2102396 U CN 2102396U
- Authority
- CN
- China
- Prior art keywords
- electric fan
- weak wind
- utility
- model
- capacitor
- 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.)
- Granted
Links
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- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses the additional device of an electric fan, and is the weak wind device of the household electric fan. The utility model utilizes the alternating-current capacitive impedance current-limiting function of the capacitor C, limits the outputted current flow, causes the electric fan to operate under the voltage reduction condition, and reaches to the weak wind effect of the electric fan. The utility model has the advantages of simple structure, low cost.
Description
The utility model discloses a kind of electric fan additional control gear, specifically household fan weak wind device.
At present, the widely used desk-top or stand fan of people generally only has 3～4 grades of speed change gears, can only satisfy people's general needs, the needs in the time of can not satisfying people to gentle breeze or nighttime sleep.In order to solve this needs of people, the higher gentle breeze fan of price appears in existing market, and this fan had been not only uneconomical, use but also inconvenient.
The purpose of this utility model is to overcome the deficiency in the above-mentioned prior art, and a kind of additional device that has the electric fan speed change gear now and can control the electric fan rotating speed that do not change is provided, i.e. the household fan weak wind device.
The purpose of this utility model is achieved in that
Comprise resistor, switch, capacitor and luminotron tube (LED), by become capacitor C and resistance R in parallel with K switch
2Form to exchange the capacitive reactance current limiting element, release element by with capacitor C and resistance R
2R in parallel
1Form.
And luminotron tube LED is through resistance R
3Be parallel to R
2Two ends.
The utility model has the advantages that:
1, is suitable for different capacity (as the 30W～60W) and the household fan of different size (as 12 "～16 ").
2, easy switching can be selected " weak wind " state or " normally " state of electric fan arbitrarily, and need not other conversion.
3, behind use the utility model, the class that can double improves the Applicable scope that has household fan now, has good " weak wind " effect.
4, using the utility model can the amount of saving energy 1/2～2/3, be the desirable additional device of household fan.
Accompanying drawing is the utility model electrical block diagram.
Embodiment:
The interchange capacitive reactance that utilizes capacitor is as current limiting element, to realize the adjusting to fan.Capacitor C and resistance R
2In parallel with K switch together, like this, when K switch was opened a way, the capacitive reactance of capacitor C had limited output current, and fan is moved under pressure-lowering condition.When K switch was closed, circuit was by short circuit, and the full voltage that output terminal obtains importing, electric fan then are under " normally " working state.And at this moment, the electric energy that capacitor C stores passes through R
1Discharge R
1Be called bleeder.
Luminotron tube LED series resistors R
3Back and resistance R
2Parallel connection, power taking resistance R
2The voltage at two ends, the working condition of indicator elment.
When using the utility model, with 220V50H
ZAc inserts input end, and output terminal directly connects the electric fan plug.
Claims (2)
1, a kind of household fan weak wind device comprises resistance, switch, capacitor and luminotron tube (LED), it is characterized in that: because K switch becomes capacitor C and resistance R in parallel
2Form to exchange the capacitive reactance current limiting element, release element by with capacitor C and resistance R
2R in parallel
1Form.
2, weak wind device according to claim 1 is characterized in that: luminotron tube LED is through resistance R
3Be parallel to R
2Two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223198 CN2102396U (en) | 1991-08-13 | 1991-08-13 | Weak wind device of household electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223198 CN2102396U (en) | 1991-08-13 | 1991-08-13 | Weak wind device of household electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2102396U true CN2102396U (en) | 1992-04-22 |
Family
ID=4929932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91223198 Granted CN2102396U (en) | 1991-08-13 | 1991-08-13 | Weak wind device of household electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2102396U (en) |
-
1991
- 1991-08-13 CN CN 91223198 patent/CN2102396U/en active Granted
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |