CN202732407U - Electric fan controller - Google Patents
Electric fan controller Download PDFInfo
- Publication number
- CN202732407U CN202732407U CN 201220232045 CN201220232045U CN202732407U CN 202732407 U CN202732407 U CN 202732407U CN 201220232045 CN201220232045 CN 201220232045 CN 201220232045 U CN201220232045 U CN 201220232045U CN 202732407 U CN202732407 U CN 202732407U
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- circuit
- transistor
- fan
- signal
- electric fan
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Abstract
The utility model relates to an electric fan controller. The electric fan controller comprises a temperature control automatic transmission module and a touch automatic stop module, wherein a temperature detection unit in the temperature control automatic transmission module converts a temperature signal into a voltage signal, the voltage signal is input into a control end of a silicon controlled rectifier as a control signal after being amplified by a transistor amplification circuit, the silicon controlled rectifier is connected in series in a main circuit of a fan motor so as to connect and disconnect the main circuit and further adjust the rotating speed of the fan; and an oscillating circuit in the touch automatic stop module is connected with a metal fan housing, people touches a fan guard, a human body capacitance enters the oscillating circuit, a mistuning signal of the oscillating circuit is output to a relay control circuit after passing through a signal coupling circuit, an output of the relay control circuit cuts off an alternating current power supply circuit of the motor and is connected with a direct current braking circuit, and the motor stops rotating. The controller is additionally arranged in the common household electric fan, thereby being capable of realizing temperature control automatic transmission and touch automatic stop functions. The electric fan controller is simple in structure, low in development cost and easy to popularize.
Description
Technical field
The utility model relates to a kind of Electric fan controller.
Background technique
International energy shortage and oil price rise bring great impact for the economic development of China.China itself is energy consumption big country, and still, energy reserve is very limited.Aspect energy consumption, family occupies sizable proportion.Although electric fan power is less, as popular household electric appliance, aspect energy-saving and cost-reducing, also played very important effect.Present popular electric fan (mainly being desk fan and stand fan) adopts metal net mask protection flabellum, and in sleeping at night or negligence, flabellum is still touched by the people easily, so there is potential safety hazard.The utility model device can be regulated rotation speed of the fan automatically according to the situation of external temperature, thereby reaches energy-conservation purpose; Simultaneously when hand touches flabellum, automatically stall of fan.
Summary of the invention
The utility model is the safety problem for electric fan, has proposed a kind of Electric fan controller, can realize that temperature control automatic speed changing and hand touch the function of fan automatic stop, the Security that has improved electric fan.
The technical solution of the utility model is: a kind of Electric fan controller, comprise that temperature control automatic speed changing module and hand touch the automatic stop module, temperature detecting unit is converted to voltage signal with temperature signal in the temperature control automatic speed changing module, after the transistor amplifier circuit amplification, be input to the silicon controlled control end as control signal, controllable silicon in serial connection in the major loop of fan electromotor, break-make major loop, and then regulate the rotating speed of fan; Hand touches the vibrator circuit wind-receiving fan metal shell in the automatic stop module, the people touches fan screen, body capacitance enters vibrator circuit, vibrator circuit off resonance signal outputs to control relay circuit behind signal coupling circuit, control relay circuit outputting cutting power machine ac power supply circuit, connect simultaneously the DC injection braking circuit, motor stalling.
Described temperature control automatic speed changing module comprises thermistor, charging capacitor, transistor and controllable silicon, thermistor connects the first transistor base stage, the collector electrode of charging capacitor one termination the first transistor and the base stage of transistor seconds, the transistor seconds emitter connects the SCR control end, and the temperature signal of thermistor is input SCR control end after transistor amplifies.
It is the vibrator circuit that electric capacity and inductance in parallel form that described hand touches the tactile detection device of automatic stop module middle finger, control relay circuit mainly is comprised of transistor and two relays, the transistor driving actuating of relay, a relay connects motor main supply electricity loop, and another connects the DC injection braking circuit.
The beneficial effects of the utility model are: the utility model Electric fan controller, only need to install this controller additional in common domestic electric fan the inside, and can realize that temperature control automatic speed changing and hand touch the function of fan automatic stop.The utility model is simple in structure, and development cost is low, is easy to popularize.
Description of drawings
Fig. 1 is the utility model Electric fan controller structured flowchart;
Fig. 2 is the utility model Electric fan controller circuit diagram.
Embodiment
Electric fan controller structured flowchart as shown in Figure 1, the temperature signal that temperature-detecting device detects converts voltage signal to, send transistor amplifier circuit to convert corresponding control signal to and be added on the thyristor speed control circuit, thereby the conducting of control silicon controlled realizes the speed governing of motor.When having the people to touch fan leaf, the off resonance of electric capacity vibrator circuit behind signal coupling circuit, outputs to the braking of control relay circuit control motor DC, has realized the automatic stop of motor.
Circuit diagram as shown in Figure 2, controller comprise that temperature control automatic speed changing module and hand touch the automatic stop module.
Temperature control automatic speed regulation module is by thermistor RT1, thermistor RT2, the main devices such as single-unit transistor Q1, single-unit transistor Q2 and controllable silicon VT form, its working principle is: the 220V civil power becomes the VDC of pulsation through transformer pressure-reducing after the bridge rectifier full wave rectifier.This voltage forms the power supply of circuit as trigger impulse.Take single-unit transistor Q2 as core consists of typical relaxation oscillator, the charging current of capacitor C1 is provided by single-unit transistor Q2, because thermistor RT1 and RT2 parallel connection are as the base biasing resistor of single-unit transistor Q1, so when ambient temperature changes, cause the electric current of single-unit transistor Q2 to change, the Trigger Angle of controllable silicon VT is moved forward and backward thereupon, and then change is series at the electric fan both end voltage in the major loop, the rotating speed of fan namely changes thereupon, has reached temperature control self-shifting purpose.
Hand touches fan automatic stop module mainly by vibrator circuit capacitor C 2, inductance L 1, and coupling circuit transistor Q3, transistor Q4, transistor Q5, transistor Q5 and DC injection braking circuit relay K1, relay K 2, capacitor C 7, diode D2 three parts form.Its working principle is: behind the power connection, fan electromotor is connected civil power by the normally closed interlock of relay K 1 and is rotated.Provide power supply for each transistor after the filtering of power supply process depressurization and rectification.When staff touches fan screen because of carelessness, because the introducing of human body distributed capacity makes the collector electrode oscillating circuit off resonance of transistor Q3, this moment, the negative terminal direct current output of diode D1 was down to 0V by 7V, make PNP transistor Q4 become conducting by cut-off, relay K 1 gets electric adhesive, loudspeaker gets the electric warning of sending, and the normally closed interlock K12 of relay K 1 disconnects, and has cut off the motor power supply; The normally open contact K11 of relay K 1 is closed simultaneously, power supply is through normally open contact K11, capacitor C 5, transistor Q5,5 chargings of 11 pairs of capacitor C of resistance R, charging current makes Q5 become conducting by cut-off, so relay K 2 adhesives, be added to the motor two ends through the direct current after the diode D2 rectification through relay K 2, the magnetic field that direct current produces in motor stator makes immediately stall of motor.After about 1 second, capacitor C 5 chargings finish, transistor Q5 cut-off, and relay K 2 discharges, and the dynamic braking process finishes.Until staff leaves, relay K 1 just discharges, and loudspeaker is reported to the police and finished, and contact K12 recovers conducting, and motor remains in operation.
Claims (3)
1. Electric fan controller, it is characterized in that, comprise that temperature control automatic speed changing module and hand touch the automatic stop module, temperature detecting unit is converted to voltage signal with temperature signal in the temperature control automatic speed changing module, after the transistor amplifier circuit amplification, be input to the silicon controlled control end as control signal, controllable silicon in serial connection is in the major loop of fan electromotor, break-make major loop, and then the rotating speed of adjusting fan; Hand touches the vibrator circuit wind-receiving fan metal shell in the automatic stop module, the people touches fan screen, body capacitance enters vibrator circuit, vibrator circuit off resonance signal outputs to control relay circuit behind signal coupling circuit, control relay circuit outputting cutting power machine ac power supply circuit, connect simultaneously the DC injection braking circuit, motor stalling.
2. described Electric fan controller according to claim 1, it is characterized in that, described temperature control automatic speed changing module comprises thermistor, charging capacitor, transistor and controllable silicon, thermistor connects the first transistor base stage, the collector electrode of charging capacitor one termination the first transistor and the base stage of transistor seconds, the transistor seconds emitter connects the SCR control end, and the temperature signal of thermistor is input SCR control end after transistor amplifies.
3. described Electric fan controller according to claim 1, it is characterized in that, it is the vibrator circuit that electric capacity and inductance in parallel form that described hand touches the tactile detection device of automatic stop module middle finger, described control relay circuit mainly is comprised of transistor and two relays, the transistor driving actuating of relay, a relay connects motor main supply electricity loop, and another connects the DC injection braking circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232045 CN202732407U (en) | 2012-05-23 | 2012-05-23 | Electric fan controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232045 CN202732407U (en) | 2012-05-23 | 2012-05-23 | Electric fan controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732407U true CN202732407U (en) | 2013-02-13 |
Family
ID=47658111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232045 Expired - Fee Related CN202732407U (en) | 2012-05-23 | 2012-05-23 | Electric fan controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358700A (en) * | 2014-11-27 | 2015-02-18 | 滨州学院 | Fan control circuit with functions of controlling temperature and preventing touch and electric leakage |
-
2012
- 2012-05-23 CN CN 201220232045 patent/CN202732407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358700A (en) * | 2014-11-27 | 2015-02-18 | 滨州学院 | Fan control circuit with functions of controlling temperature and preventing touch and electric leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130523 |