CN106050716B - The air speed step indicating circuit of electric fan - Google Patents
The air speed step indicating circuit of electric fan Download PDFInfo
- Publication number
- CN106050716B CN106050716B CN201610390752.2A CN201610390752A CN106050716B CN 106050716 B CN106050716 B CN 106050716B CN 201610390752 A CN201610390752 A CN 201610390752A CN 106050716 B CN106050716 B CN 106050716B
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- Prior art keywords
- circuit
- light emitting
- emitting diode
- speed governing
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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
- 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 air speed step indicating circuit of electric fan, including a monopole multi-position switch, its public terminal are access to a pole of power supply, and every terminal is access to each speed governing tap of fan motor winding respectively；It is characterized in that：The every terminal of switch is respectively access to each speed governing tap of fan motor winding through a low impedance circuit, and the low impedance circuit is the parallel circuit of a plurality of branch road, and a wherein branch road is that a light emitting diode or a light emitting diode are in series with other elements；The Low ESR is within the 5% of the corresponding speed governing tap impedance loop of the fan motor winding.Monopole multi-position switch can be used to replace 2 pole multi-position switch of prior art for the design, thus simplify structure, reduce cost and failure.
Description
Technical field
The present invention relates to a kind of air speed step indicating circuit of electric fan, International Classification of Patents belongs to F04D27/00.
Background technology
The air speed step indicating circuit of traditional electric fan is to there is the motion of contact speed-regulating switch to set direct machine
The position indicator of tool gear, eye-catching and inconvenient observation is owed because indicating.Afterwards, prior art is changed to refer to using light emitting diode
Show rotating speed gear, and using 2 pole multidigit contact switches as speed-regulating switch, one pole is used to switch fan motor winding
Each speed governing tap, another pole are used to switch light emitting diode branch road to indicate rotating speed gear, the visible Application No. of specific design
99203621.6 the Chinese utility model patent with Publication No. CN2379629.It is easy to observe although design mark is eye-catching,
But multidigit contact switch volume in 2 pole used is larger, cost is higher and failure is more.
The content of the invention
The technical problems to be solved by the invention are：A kind of air speed step indicating circuit of electric fan is provided, itself and it is 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, is reduced
Cost and failure.
The present invention solve technical problem technical scheme be：A kind of air speed step indicating circuit of electric fan, including a list
Pole multi-position switch, its public terminal are access to a pole of power supply, and every terminal is access to each speed governing of fan motor winding and taken out respectively
Head；It is characterized in that：The every terminal of switch is respectively access to each speed governing tap of fan motor winding through a low impedance circuit,
The 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 elements are in series；The Low ESR for the corresponding speed governing tap impedance loop of the fan motor winding 5% with
It is interior.
The operating current ingenious in design using each speed governing tap loop of fan motor winding, which is lighted, is series at these
Light emitting diode in the circuit in loop, make multi-position switch a pole have both load circuit switching and indicating circuit switch two kinds with
On the way, so as to replace 2 pole multi-position switch of prior art using monopole multi-position switch, thus simplify structure, reduce cost and event
Barrier.Low ESR is designed to limit the power of the series circuit, is advantageous to save, and mitigates heating and the shadow to fan normal operation
Ring.According to cost and the situation of structure, there can be a variety of specific designs.
Brief description of the drawings
Fig. 1 is the 1st embodiment fan circuit figure of the invention.
Fig. 2 is the 2nd embodiment fan circuit figure of the invention.
Fig. 3 is the 3rd embodiment fan circuit figure of the invention.
Embodiment
The fan circuit of the embodiment of the present invention 1~3 as shown in Figure 1,2 and 3, is all connected to L, N pole of single phase poaer supply, by list
H, m and l tap of the bit switch 2 of pole 3 to the winding of motor 1 carries out speed governing changing-over control.3 embodiment is in Application No.
Improved on the basis of embodiment described in 99203621.6 and Publication No. CN2379629 Chinese utility model patent specification and
Into, 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.It is main
The improvement wanted includes：
--- the duplex step switch 2 of the embodiment is changed to monopole multi-position switch, the connection of duplex step switch 2 luminous two
3 branch roads of pole pipe are deleted；
--- h, m and l speed governing tap that the former winding of motor 1 is drawn are access to the branch road of each pole of multi-position switch, connect respectively
Enter a circuit containing light emitting diode.
The circuit containing light emitting diode has totally 3 kinds of designs described in the embodiment of the following 1st, 2 and 3, referring to Fig. 1, Fig. 2
With Fig. 3 (reference only marks to l speed governing taps loop)：
The 1st embodiment of the present invention as shown in Figure 1, the circuit containing light emitting diode is light emitting diode 11 and voltage stabilizing
The reversed polarity of diode 12 is formed in parallel, and light emitting diode 11 is identical with the operating voltage of voltage-regulator diode 12, about 1.2~
1.8V；Rated current is not less than 200mA.Certainly, if using compared with high working voltage compared with high voltage stability diode, can also be by two works
It is formed in parallel again with voltage-regulator diode reversed polarity after making the relatively low light emitting diode series aiding connection of voltage.Use two light-emitting diodes
Pipe can have more eye-catching instruction and be easy to design more attractive instruction.
The 2nd embodiment of the present invention as shown in Figure 2, the circuit containing light emitting diode are the parallel circuit of 2 branch roads,
1st article of branch road is that light emitting diode 21 forms with the series aiding connection of commutation diode 22, and the 2nd article of branch road is resistance 23, the resistance
Resistance, about 16 ohm during the h speed governing tap loops drawn for the winding of motor 1, about 13 ohm and l during m speed governing tap loops
About 10 ohm during speed governing tap loop.Commutation diode 22 plays reverse protection to light emitting diode 21.Can also be by two
Or more light emitting diode series aiding connection after formed again with the series aiding connection of diode 22, now the resistance 23 of the 2nd article of branch road can
It is multiplied, but does not exceed the 5% of corresponding speed governing tap impedance loop.According to Ohm's law, the impedance in speed governing tap loop
For rated voltage divided by model machine, the measured current of corresponding shelves is surveyed in load running under rated voltage.
The 3rd embodiment of the present invention as shown in Figure 3, the circuit containing light emitting diode are the parallel circuit of 3 branch roads,
1st article of branch road is light emitting diode 31；2nd article of branch road is commutation diode 32, and its polarity side in the parallel circuit
To opposite with the polar orientation of light emitting diode 31；3rd branch road be commutation diode 33,34 series aiding connections, and its it is described simultaneously
The polar orientation joined in 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 relatively low light emitting diode series aiding connection of two relatively low operating voltages of voltage, now, the 3rd branch road need to may be designed as 3 it is whole
Flow diode series aiding connection.2nd article of branch road is the path that commutation diode 32 provides another half cycle of alternating current, to light-emitting diodes
Reverse protection effect is managed.
Claims (1)
1. the air speed step indicating circuit of electric fan, including a monopole multi-position switch, its public terminal are 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 switch is respectively low through one
Impedance circuit is access to each speed governing tap of fan motor winding, and the low impedance circuit is the parallel circuit of a plurality of branch road, and its
In branch road be that a light emitting diode or a light emitting diode are in series with other elements；The Low ESR is the electric wind
Within fan the corresponding speed governing tap impedance loop of motor winding 5%.
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 |
|---|---|---|---|
| CN201010504941.0A CN101985945B (en) | 2010-10-07 | 2010-10-07 | A kind of air speed step indicating circuit of electric fan |
| CN201610390752.2A CN106050716B (en) | 2010-10-07 | 2010-10-07 | The 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 CN106050716A (en) | 2016-10-26 |
| CN106050716B true CN106050716B (en) | 2017-11-28 |
Family
ID=43710330
Family Applications (2)
| 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 |
| CN201610390752.2A Active CN106050716B (en) | 2010-10-07 | 2010-10-07 | The air speed step indicating circuit of electric fan |
Family Applications Before (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) | CN101985945B (en) |
Families Citing this family (2)
| 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 |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063718U (en) * | 1990-01-21 | 1990-10-10 | 魏兴华 | Power regulator with indication and control for household appliances |
| 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 (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5182550U (en) * | 1974-12-24 | 1976-07-02 | ||
| 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 |
| JPH05182550A (en) * | 1991-12-26 | 1993-07-23 | Jimbo Electric Co Ltd | Load electrifying display |
| 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 CN201010504941.0A patent/CN101985945B/en active Active
- 2010-10-07 CN CN201610390752.2A patent/CN106050716B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063718U (en) * | 1990-01-21 | 1990-10-10 | 魏兴华 | Power regulator with indication and control for household appliances |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050716A (en) | 2016-10-26 |
| CN101985945B (en) | 2016-08-17 |
| CN101985945A (en) | 2011-03-16 |
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