CN109209972B - Fan with simple speed regulation function - Google Patents
Fan with simple speed regulation function Download PDFInfo
- Publication number
- CN109209972B CN109209972B CN201811200748.0A CN201811200748A CN109209972B CN 109209972 B CN109209972 B CN 109209972B CN 201811200748 A CN201811200748 A CN 201811200748A CN 109209972 B CN109209972 B CN 109209972B
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- Prior art keywords
- circuit
- speed
- fan
- speed regulation
- switch
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- 230000001105 regulatory effect Effects 0.000 claims description 33
- 230000005611 electricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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
-
- 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
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a fan with a simple speed regulation function, which comprises a fan main body and a speed regulation switch, wherein the fan main body comprises a power input interface, a speed regulation signal grabbing circuit, a control circuit, a motor driving circuit and a motor, wherein the power input interface, the speed regulation signal grabbing circuit, the control circuit, the motor driving circuit and the motor are sequentially and electrically connected, the power input interface is respectively connected with the speed regulation switch and the power circuit, the power circuit respectively supplies power to the speed regulation signal grabbing circuit, the control circuit, the motor driving circuit and the motor, and the power switch of the fan is replaced by a unidirectional rotating multi-gear speed regulation switch connected with a mains supply, so that the generation cost is reduced, a control wire is not required to be arranged, and the installation is simplified.
Description
[ technical field ]
The invention relates to a fan with a simple speed regulation function.
[ background Art ]
Generally, the fan speed regulation mode is generally divided into a remote control mode or a wall control mode, wherein the remote control mode needs to be added with a remote controller, so that the cost is high; the wall control mode needs to be provided with one more control line, so that the installation is inconvenient, and the speed regulation switch can realize speed regulation only by arranging the control line even if the fan is a desk fan.
[ summary of the invention ]
The invention overcomes the defects of the technology, and provides the fan with a simple speed regulation function, which replaces a power switch of the fan by a unidirectional rotating multi-gear rotary speed regulation switch connected with a mains supply, reduces the generation cost, does not need to arrange a control line, and simplifies the installation.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a fan with simple speed governing function, is including fan main part 1 and speed governing switch 2, fan main part 1 is including power input interface 3, the speed governing signal that is used for snatching speed governing switch speed governing signal snatch circuit 4, control circuit 5, motor drive circuit 6 and motor 7 that are connected in order, power input interface 3 is connected with speed governing switch 2, power supply circuit 8 respectively, power supply circuit 8 is to speed governing signal snatch circuit 4, control circuit 5, motor drive circuit 6, motor 7 power supply respectively.
An anti-surge element RT1 is arranged between the power input interface 3 and the speed regulation signal grabbing circuit 4.
A fuse F1 is arranged between the power input interface 3 and the power circuit 8.
The speed regulating switch 2 is a unidirectional rotation speed regulating switch.
The speed regulating switch 2 is a multi-gear rotary speed regulating switch, one gear is a stop gear, the other gears are speed regulating gears, and one ends of the speed regulating gears are mutually connected.
The speed regulation signal grabbing circuit 4 comprises a rectifier bridge BD2 and an optocoupler isolator U3, wherein an input pin (1) of the rectifier bridge BD2 is connected with a zero line end of a power input interface 3, an input pin (3) of the rectifier bridge BD2 is connected with a live line end of the power input interface 3, an output pin (2) of the rectifier bridge BD2 is connected with the input pin (1) of the optocoupler isolator U3 through a resistor R9, an output pin (4) of the rectifier bridge BD2 is connected with the input pin (2) of the optocoupler isolator U3 through a resistor R10, an output pin (3) of the optocoupler isolator U3 is grounded, an output pin (4) of the optocoupler isolator U3 is respectively connected with one end of a resistor R15, one end of a capacitor C6 and one end of a resistor R16, the other end of the resistor R15 is grounded with the other ends of the power supply circuit 8 and the capacitor C6, the other ends of the resistor R16 are respectively connected with one ends of a control circuit 5 and the capacitor C11, and the other ends of the capacitor C11 are grounded.
The beneficial effects of the invention are as follows:
1. the invention realizes the speed regulation of the fan by controlling the on-off of the power supply through the multi-gear rotary speed regulation switch connected with the mains supply, has low speed regulation cost and does not greatly influence the cost by increasing the speed regulation stage number; meanwhile, the installation is easy, as long as the place where the commercial power arrives can be installed, no additional control line for speed regulation is needed, and the installation method has more obvious advantages on the occasion where the installed hidden line is inconvenient to change.
2. The invention uses the rotary speed-regulating switch to control the on-off of the power supply, and limits the time of the interruption of the power supply of the fan during speed regulation by the structural design of the rotary switch, and the rotary contact of the rotary switch can automatically slide to one fixed contact after leaving the other fixed contact, and the power supply is switched on again, thereby realizing the power-off signal which can send speed-regulating signals outwards and does not seriously influence the operation of the fan at the same time.
3. The speed regulating switch is a speed regulating switch which can only rotate in one direction so as to prevent the fan from being in disorder in wind speed, meanwhile, the speed regulating signal grabbing circuit grabs a power-off signal as a fan gear switching signal, the control circuit regulates the fan output rotating speed gear according to the frequency of the power-off signal, and the gear number of one period is the contact point number of the speed regulating switch.
[ description of the drawings ]
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a timing signal grabbing circuit according to the present invention;
fig. 3 is a schematic diagram of a speed regulating switch according to the present invention.
Detailed description of the preferred embodiments
Embodiments of the present invention are described in further detail below with reference to the attached drawings:
as shown in fig. 1-3, a fan with simple speed regulation function comprises a fan main body 1 and a speed regulation switch 2, wherein the fan main body 1 comprises a power input interface 3, a speed regulation signal grabbing circuit 4, a control circuit 5, a motor driving circuit 6 and a motor 7, wherein the power input interface 3 is used for grabbing speed regulation signals of the speed regulation switch, the power input interface 3 is respectively connected with the speed regulation switch 2 and a power circuit 8, and the power circuit 8 is used for respectively supplying power to the speed regulation signal grabbing circuit 4, the control circuit 5, the motor driving circuit 6 and the motor 7.
The working principle is as follows:
during installation, the speed regulating switch 2 is only required to be connected with mains supply, when the speed regulating switch works, the central rotating pointer contact of the rotating speed regulating switch 2 is rotated to a fixed contact gear 1 from the fixed contact gear 0 to be connected with a power supply, the power supply circuit 8 is powered on, the control circuit 5 controls the motor 7 to work at the gear 1 rotating speed through the motor driving circuit 6, when the central rotating pointer contact of the rotating speed regulating switch 2 is rotated to the fixed contact gear 2 from the fixed contact gear 1, the short-time disconnection of the contact causes short power failure in the rotating process, the speed regulating signal grabbing circuit 4 grabs a first short-time power failure signal, namely a first gear shifting accelerating signal, and transmits the first short-time power failure accelerating signal to the control circuit 5, the control circuit 5 controls the motor 7 to work at the gear 3 rotating speed through the motor driving circuit 6, and the like until the rotating speed of the motor 7 is stopped from the fixed contact gear 3, and the period is switched off after the power is stopped briefly, and the power is stopped from the fixed contact gear 3.
The power failure time is millisecond, and therefore each circuit in the fan can not interrupt work in the power failure process.
Meanwhile, the speed regulating switch 2 is a unidirectional rotation speed regulating switch, and is a multi-gear rotation speed regulating switch, one gear is a stop gear, the other gears are speed regulating gears, one ends of the speed regulating gears are mutually connected, the stop gear is connected with a mains supply fire wire, the speed regulating gears are connected with a central rotation pointer and a mains supply zero wire, the step-by-step gear shifting acceleration is realized, and the wind speed gear disorder is effectively prevented, as shown in fig. 3: the speed regulating switch 2 is an eight-gear speed regulating switch and has seven gear speeds, and six gear shifting acceleration can be realized.
The number of the contacts of the rotary switch and the number of the switching gears are not limited, and 8 contacts of the rotary switch are used as one scheme for illustration.
On the other hand, an anti-surge element RT1 is arranged between the power input interface 3 and the speed regulation signal grabbing circuit 4, and a fuse F1 is arranged between the power input interface 3 and the power circuit 8, so that each circuit component in the fan main body 1 is better protected.
As shown in fig. 2, the speed regulation signal grabbing circuit 4 includes a rectifier bridge BD2 and an optocoupler isolator U3, an input pin (1) of the rectifier bridge BD2 is connected to a zero line end of the power input interface 3, an input pin (3) of the rectifier bridge BD2 is connected to a live line end of the power input interface 3, an output pin (2) of the rectifier bridge BD2 is connected to an input pin (1) of the optocoupler isolator U3 through a resistor R9, an output pin (4) of the rectifier bridge BD2 is connected to an input pin (2) of the optocoupler isolator U3 through a resistor R10, an output pin (3) of the optocoupler isolator U3 is grounded, an output pin (4) of the optocoupler isolator U3 is connected to one end of a resistor R15 and one end of a resistor R16 respectively, the other end of the resistor R15 is grounded to the power supply circuit 8 and the other end of the capacitor C6, the other end of the resistor R16 is connected to one end of the control circuit 5 and one end of the capacitor C11 respectively, and the other end of the capacitor C11 is grounded.
The input power is transmitted to the control circuit 5 after being tidied by the rectifier bridge BD2 and the optocoupler isolator U3 in the speed regulating signal grabbing circuit 4, when the central rotating pointer contact of the rotating speed regulating switch 2 rotates to any one of the gear positions 1-7, the grabbing signal ACZ is a continuous waveform signal through the rectifier bridge BD2 and the optocoupler isolator U3, when the rotating speed regulating switch 2 rotates to the next contact gear position, the continuous waveform signal of the grabbing signal ACZ is interrupted once, the interruption signal is a gear shifting accelerating signal, and the control circuit 5 receives the interruption signal and controls the motor 7 to work at the next gear speed through the motor driving circuit 6.
Claims (5)
1. A fan with simple speed regulation function is characterized in that: including fan main part (1) and speed governing switch (2), fan main part (1) including power input interface (3) that electricity is connected in order, be used for snatching speed governing signal snatch circuit (4), control circuit (5), motor drive circuit (6) and motor (7) of speed governing switch speed governing signal, power input interface (3) are connected with speed governing switch (2) respectively, power supply circuit (8) are connected to speed governing signal snatch circuit (4), control circuit (5), motor drive circuit (6), motor (7) power supply respectively, speed governing signal snatch circuit (4) including rectifier bridge BD2 and opto-coupler isolator U3, rectifier bridge BD2 input pin (1) are connected with power input interface (3) zero line end, rectifier bridge BD2 input pin (3) are connected with power input interface (3) live wire end, and rectifier bridge BD2 output pin (2) are connected with opto-coupler isolator U3 input pin (1) through resistance R9, rectifier bridge BD2 output (4) are connected with opto-coupler isolator U3 pin (4) through resistance R10, opto-coupler isolator U3 input pin (6), the electric capacity C3, the other end is connected with C3, one end is connected with C11, one end is connected with C3, another end is connected with C3.
2. A fan with simple speed regulation according to claim 1, wherein: an anti-surge element RT1 is arranged between the power input interface (3) and the speed regulation signal grabbing circuit (4).
3. A fan with simple speed regulation according to claim 1, wherein: a fuse F1 is arranged between the power input interface (3) and the power circuit (8).
4. A fan with simple speed regulation according to claim 1, wherein: the speed regulating switch (2) is a unidirectional rotation speed regulating switch.
5. A fan with simple speed regulation according to claim 1 or 4, characterized in that: the speed regulating switch (2) is a multi-gear rotary speed regulating switch, one gear is a stop gear, the other gears are speed regulating gears, and one ends of the speed regulating gears are mutually connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200748.0A CN109209972B (en) | 2018-10-16 | 2018-10-16 | Fan with simple speed regulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811200748.0A CN109209972B (en) | 2018-10-16 | 2018-10-16 | Fan with simple speed regulation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209972A CN109209972A (en) | 2019-01-15 |
| CN109209972B true CN109209972B (en) | 2024-02-09 |
Family
ID=64980347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811200748.0A Active CN109209972B (en) | 2018-10-16 | 2018-10-16 | Fan with simple speed regulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209972B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425174B (en) * | 2019-07-24 | 2024-07-26 | 许继电源有限公司 | Fan speed regulating circuit and multipath parallel fan speed regulating circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4605883A (en) * | 1982-02-05 | 1986-08-12 | Sunbeam Corporation | Motor speed control circuit |
| CN102817860A (en) * | 2012-08-17 | 2012-12-12 | 佛山市顺德区海伦宝电器有限公司 | Multi-gear control circuit for air conditioner fan or fan |
| CN204003546U (en) * | 2014-06-13 | 2014-12-10 | 艾美特电器（深圳）有限公司 | A kind of many gears wind speed electric fan |
| CN205559344U (en) * | 2016-04-27 | 2016-09-07 | 东莞市银海塑胶电子有限公司 | Fan motor drive circuit |
| WO2016141718A1 (en) * | 2015-03-12 | 2016-09-15 | 广东美的环境电器制造有限公司 | Control system of direct-current fan and direct-current fan |
| CN107956730A (en) * | 2017-11-27 | 2018-04-24 | 卫星电子（中山）有限公司 | A kind of fan control system |
| CN208982329U (en) * | 2018-10-16 | 2019-06-14 | 卫星电子（中山）有限公司 | A kind of simple speed-regulating fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817862B (en) * | 2012-08-29 | 2016-08-10 | 华为技术有限公司 | A kind of control method for fan, Apparatus and system |
-
2018
- 2018-10-16 CN CN201811200748.0A patent/CN109209972B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4605883A (en) * | 1982-02-05 | 1986-08-12 | Sunbeam Corporation | Motor speed control circuit |
| CN102817860A (en) * | 2012-08-17 | 2012-12-12 | 佛山市顺德区海伦宝电器有限公司 | Multi-gear control circuit for air conditioner fan or fan |
| CN204003546U (en) * | 2014-06-13 | 2014-12-10 | 艾美特电器（深圳）有限公司 | A kind of many gears wind speed electric fan |
| WO2016141718A1 (en) * | 2015-03-12 | 2016-09-15 | 广东美的环境电器制造有限公司 | Control system of direct-current fan and direct-current fan |
| CN205559344U (en) * | 2016-04-27 | 2016-09-07 | 东莞市银海塑胶电子有限公司 | Fan motor drive circuit |
| CN107956730A (en) * | 2017-11-27 | 2018-04-24 | 卫星电子（中山）有限公司 | A kind of fan control system |
| CN208982329U (en) * | 2018-10-16 | 2019-06-14 | 卫星电子（中山）有限公司 | A kind of simple speed-regulating fan |
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| Publication number | Publication date |
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| CN109209972A (en) | 2019-01-15 |
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