CN106050716A - Grading indicating circuit for wind speed of electric fan - Google Patents
Grading indicating circuit for wind speed of electric fan Download PDFInfo
- Publication number
- CN106050716A CN106050716A CN201610390752.2A CN201610390752A CN106050716A CN 106050716 A CN106050716 A CN 106050716A CN 201610390752 A CN201610390752 A CN 201610390752A CN 106050716 A CN106050716 A CN 106050716A
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- China
- Prior art keywords
- circuit
- light emitting
- electric fan
- emitting diode
- pole
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- 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.)
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Classifications
-
- 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
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a grading indicating circuit for the wind speed of an electric fan. The grading indicating circuit comprises a single-pole multi-position switch, wherein a public terminal of the single-pole multi-position switch is connected to one pole of a power source, and each terminal is connected to each speed regulating tap of an electromotor winding of the electric fan. The grading indicating circuit is characterized in that each terminal of the switch is connected to each speed regulating tap of the electromotor winding of the electric fan through a low-impedance circuit which is a parallel circuit of a plurality of branch circuits, and one of the branch circuits is a light emitting dioxide or is formed by serially connecting the light emitting diode and other elements; and the low impedance is lower than 5% of the impedance of a loop of the corresponding speed regulating tap of the electromotor winding of the electric fan. Due to the adoption of the design, a two-pole multi-position switch in the prior art can be replaced with the single-pole multi-position switch, so that the structure is simplified, and the cost and faults are reduced.
Description
Technical field
The present invention relates to the air speed step indicating circuit of a kind of electric fan, International Classification of Patents belongs to F04D27/00.
Background technology
The air speed step indicating circuit of tradition electric fan is that the motion having contact speed-regulating switch is arranged direct machine
The position indicator of tool gear, because mark owes eye-catching and inconvenient observation.Afterwards, prior art changes into using light emitting diode to refer to
Showing rotating speed gear, and use 2 pole multidigit contact switches as speed-regulating switch, one pole is used for switching fan motor winding
Each speed governing tap, another pole is used for switching light emitting diode branch road to indicate rotating speed gear, Application No. seen from specific design
99203621.6 and the Chinese utility model patent of Publication No. CN2379629.Although this design indicates eye-catching and is easy to observe,
But 2 pole multidigit contact switch volumes used are bigger, relatively costly and fault is more.
Summary of the invention
The technical problem to be solved is: provide the air speed step indicating circuit of a kind of electric fan, and it is with existing
Technology is compared, and light emitting diode can be used to make speed step Warning Mark eye-catching and be easy to observe, but can simplify structure, reduces
Cost and fault.
The present invention solves the technical scheme of technical problem: the air speed step indicating circuit of a kind of electric fan, single including one
Pole multi-position switch, its public terminal is access to a pole of power supply, and every terminal is access to each speed governing of fan motor winding respectively and takes out
Head；It is characterized in that: the every terminal of described switch is respectively access to each speed governing tap of fan motor winding through a low impedance circuit,
This low impedance circuit is the parallel circuit of a plurality of branch road, and wherein branch road be a light emitting diode or a light emitting diode with
Other element is in series；Described Low ESR be described fan motor winding corresponding speed governing tap impedance loop 5% with
In.
The ingenious operating current utilizing fan motor winding each speed governing tap loop of this design is lighted and is series at these
Light emitting diode in the circuit in loop, make a pole of multi-position switch have both load circuit switching and indicating circuit switch two kinds with
On the way, thus one pole multi-position switch can be used to replace 2 pole multi-position switchs of prior art, thus simplify structure, reduce cost and event
Barrier.Low ESR is designed to limit the power of this series circuit, the most energy-conservation, alleviates heating and the shadow properly functioning to fan
Ring.According to cost and the situation of structure, can there is multiple specific design.
Accompanying drawing explanation
Fig. 1 is the present invention the 1st embodiment fan circuit figure.
Fig. 2 is the present invention the 2nd embodiment fan circuit figure.
Fig. 3 is the present invention the 3rd embodiment fan circuit figure.
Detailed description of the invention
The embodiment of the present invention 1～3 fan circuit as shown in Figure 1,2 and 3, is all connected to L, N pole of single phase poaer supply, by list
Pole 3 bit switch 2 carries out speed governing changing-over control to h, m and l tap of motor 1 winding.This 3 embodiment is all in Application No.
99203621.6 and Publication No. CN2379629 Chinese utility model patent description described in improve on the basis of embodiment and
Become, and fan motor is single-phase capacitor operation motor and principal phase tap speed-regulating, rated voltage 220V, rated input power
40W, model machine electric current of load running actual measurement h, m and l shelves under rated voltage is respectively 0.170A, 0.184A and 0.203A.Main
The improvement wanted includes:
The duplex step switch 2 of described embodiment changes one pole multi-position switch into, and duplex step switch 2 connects luminous two
3 branch roads of pole pipe are deleted；
H, m and l speed governing tap that former motor 1 winding is drawn is access to the branch road of each pole of multi-position switch, connects respectively
Enter a circuit containing light emitting diode.
The described circuit containing light emitting diode has totally 3 kinds of designs described in following 1st, 2 and 3 embodiments, sees Fig. 1, Fig. 2
With Fig. 3 (l speed governing tap loop is only marked by reference):
The present invention the 1st embodiment as shown in Figure 1, the described circuit containing light emitting diode is light emitting diode 11 and voltage stabilizing
Diode 12 reversed polarity is formed in parallel, and light emitting diode 11 is identical with the running voltage of Zener diode 12, about 1.2～
1.8V；Rated current is not less than 200mA.Certainly, if using relatively high working voltage relatively high voltage stability diode, it is also possible to by two works
It is formed in parallel with Zener diode reversed polarity again after making the light emitting diode series aiding connection that voltage is relatively low.Use two light-emitting diodes
Pipe can have more eye-catching instruction and be easy to design more attractive instruction.
The present invention the 2nd embodiment as shown in Figure 2, the described circuit containing light emitting diode is the parallel circuit of 2 branch roads,
Article 1, branch road is that light emitting diode 21 forms with commutation diode 22 series aiding connection, and the 2nd article of branch road is resistance 23, this resistance
Resistance, when the h speed governing tap loop that motor 1 winding is drawn about 16 ohm, during m speed governing tap loop about 13 ohm and l
During speed governing tap loop about 10 ohm.Light emitting diode 21 is played reverse protection effect by commutation diode 22.Can also be by two
Or form with diode 22 series aiding connection again after above light emitting diode series aiding connection, now the resistance 23 of the 2nd article of branch road can
It is multiplied, but does not exceeds the 5% of corresponding speed governing tap impedance loop.According to Ohm's law, the impedance in speed governing tap loop
The measured current of corresponding shelves is surveyed divided by model machine load running under rated voltage for rated voltage.
The present invention the 3rd embodiment as shown in Figure 3, the described circuit containing light emitting diode is the parallel circuit of 3 branch roads,
Article 1, branch road is light emitting diode 31；Article 2, branch road is commutation diode 32, and its polarity side in described parallel circuit
To contrary with the polar orientation of light emitting diode 31；3rd branch road is commutation diode 33,34 series aiding connection, and its described also
Polar orientation in connection circuit is identical with the polar orientation of light emitting diode 31.Certainly, the 1st article of branch road may be designed in work
The light emitting diode series aiding connection that relatively low two running voltages of voltage are relatively low, now, the 3rd branch road may need to be designed as 3 whole
Stream diode series aiding connection.Article 2, branch road provides the path of another half cycle of alternating current for commutation diode 32, to light-emitting diodes
Manage reverse protection effect.
Claims (1)
1. the air speed step indicating circuit of electric fan, including an one pole multi-position switch, its public terminal is access to a pole of power supply, respectively
Position terminal is access to each speed governing tap of fan motor winding respectively；It is characterized in that: the every terminal of described switch is respectively low through one
Impedance circuit is access to each speed governing tap of fan motor winding, and this low impedance circuit is the parallel circuit of a plurality of branch road, and its
In branch road be a light emitting diode or a light emitting diode is in series with other element；Described Low ESR is described electric wind
Within the 5% of fan motor winding corresponding speed governing tap impedance loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390752.2A CN106050716B (en) | 2010-10-07 | 2010-10-07 | The air speed step indicating circuit of electric fan |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390752.2A CN106050716B (en) | 2010-10-07 | 2010-10-07 | The air speed step indicating circuit of electric fan |
| CN201010504941.0A CN101985945B (en) | 2010-10-07 | 2010-10-07 | A kind of air speed step indicating circuit of electric fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010504941.0A Division CN101985945B (en) | 2010-10-07 | 2010-10-07 | A kind of air speed step indicating circuit of electric fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050716A true CN106050716A (en) | 2016-10-26 |
| CN106050716B CN106050716B (en) | 2017-11-28 |
Family
ID=43710330
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610390752.2A Active CN106050716B (en) | 2010-10-07 | 2010-10-07 | The air speed step indicating circuit of electric fan |
| CN201010504941.0A Active CN101985945B (en) | 2010-10-07 | 2010-10-07 | A kind of air speed step indicating circuit of electric fan |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010504941.0A Active CN101985945B (en) | 2010-10-07 | 2010-10-07 | A kind of air speed step indicating circuit of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106050716B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737297A (en) * | 2020-12-15 | 2021-04-30 | 广东新昇电业科技股份有限公司 | Driving power supply and method for improving reliability of driving power supply in abnormal environment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230338B (en) * | 2016-07-25 | 2019-04-30 | 珠海凌达压缩机有限公司 | The control method and circuit of monophase machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182550U (en) * | 1974-12-24 | 1976-07-02 | ||
| CN2063718U (en) * | 1990-01-21 | 1990-10-10 | 魏兴华 | Power regulator with indication and control for household appliances |
| JPH05182550A (en) * | 1991-12-26 | 1993-07-23 | Jimbo Electric Co Ltd | Load electrifying display |
| EP0638981A1 (en) * | 1993-08-12 | 1995-02-15 | Johnson Service Company | Motor current status sensor |
| CN2379629Y (en) * | 1999-02-12 | 2000-05-24 | 先锋电器集团有限公司 | Means for indicating stage of blowing speed of electric fan |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762463A (en) * | 1987-04-07 | 1988-08-09 | Yang Tai Her | Fan having speed indicator |
| JPS6456996A (en) * | 1987-08-27 | 1989-03-03 | Matsushita Seiko Kk | Speed adjusting device for electric fan |
| CN2036592U (en) * | 1988-07-06 | 1989-04-26 | 南京塑料四厂 | Breeze transducer for electric fan |
| DE4222431A1 (en) * | 1992-07-09 | 1994-01-13 | Wilo Gmbh | Device for switching between windings of a single-phase electric motor - has Triacs across each auxiliary winding in chain parallel to main winding, with control unit for gates |
| CN2144790Y (en) * | 1992-07-22 | 1993-10-27 | 唐铁轩 | Speed regulation indicator for fan coil pipe air conditioner |
| JP3686177B2 (en) * | 1996-08-19 | 2005-08-24 | 東洋水産株式会社 | Manufacturing method of hand-rolled Chinese noodles |
| CN2553568Y (en) * | 2002-06-20 | 2003-05-28 | 蔺凯琳 | Three-section variable speed selection circuit for variable speed d.c. brushless fan |
| CN2590269Y (en) * | 2002-10-23 | 2003-12-03 | 米有泉 | Function convertible monopole multi-path remote controlled light-modulating speed-regulating energy-saving wall switch for lamp and electric fan |
-
2010
- 2010-10-07 CN CN201610390752.2A patent/CN106050716B/en active Active
- 2010-10-07 CN CN201010504941.0A patent/CN101985945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182550U (en) * | 1974-12-24 | 1976-07-02 | ||
| CN2063718U (en) * | 1990-01-21 | 1990-10-10 | 魏兴华 | Power regulator with indication and control for household appliances |
| JPH05182550A (en) * | 1991-12-26 | 1993-07-23 | Jimbo Electric Co Ltd | Load electrifying display |
| EP0638981A1 (en) * | 1993-08-12 | 1995-02-15 | Johnson Service Company | Motor current status sensor |
| CN2379629Y (en) * | 1999-02-12 | 2000-05-24 | 先锋电器集团有限公司 | Means for indicating stage of blowing speed of electric fan |
Non-Patent Citations (2)
| Title |
|---|
| 王安福: "《家用电器》", 31 August 2007 * |
| 荣俊昌: "《电热电动器具原理与维修》", 31 March 2007 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737297A (en) * | 2020-12-15 | 2021-04-30 | 广东新昇电业科技股份有限公司 | Driving power supply and method for improving reliability of driving power supply in abnormal environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101985945B (en) | 2016-08-17 |
| CN106050716B (en) | 2017-11-28 |
| CN101985945A (en) | 2011-03-16 |
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