CN207049052U - A kind of fan automatic switch - Google Patents
A kind of fan automatic switch Download PDFInfo
- Publication number
- CN207049052U CN207049052U CN201720899488.5U CN201720899488U CN207049052U CN 207049052 U CN207049052 U CN 207049052U CN 201720899488 U CN201720899488 U CN 201720899488U CN 207049052 U CN207049052 U CN 207049052U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- electric capacity
- relay
- thermistor
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of fan automatic switch, including first resistor to the 8th resistance, first electric capacity, second electric capacity, first triode to the 4th triode, potentiometer, thermistor, diode and relay, pass through thermistor RT induced environment temperature, if environment temperature is too high, the electric current for then flowing through thermistor is increased by, first triode ON, second triode and the 3rd triode carry out signal amplification, signal after amplification triggers the 4th triode ON, relay obtains electric, the controlling switch closure of relay, connect the power supply of electric fan, so as to automatic start electric fan, compared with prior art, the utility model passes through induced environment temperature, so as to the operation of automatic control electric fan, especially in the state of no supervision, it is practical and convenient, value with popularization and application.
Description
Technical field
It the utility model is related to electronic technology field, more particularly to a kind of fan automatic switch.
Background technology
Panoramic electric fan and ventilating fan, it is one of conventional household electrical appliance, and is widely used in dining room, market, car
Stand, in the industrial and agricultural production such as warehouse and food production.Many public places, with the difference of flow of personnel situation, temperature Change width
Spend larger；Different classes of warehouse, the warehouse of the perishable thing of particularly inflammable and explosive and high temperature, it is required for controlling temperature and air
Flowing, reach the purpose of heatstroke prevention radiating and energy-saving safe.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of fan automatic switch.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model includes first resistor to the 8th resistance, the first electric capacity, the second electric capacity, the first triode to the four or three
Pole pipe, potentiometer, thermistor, diode and relay, positive source simultaneously with the first end of first resistor, second resistance
First end, the first end of the 6th resistance, the negative pole of diode connect with the first end of relay, and power cathode is simultaneously electric with temperature-sensitive
The first end of resistance, the first end of the first electric capacity, the first end of the 5th resistance, the first of the first end of the 7th resistance and the 8th resistance
End connection, the second end of first resistor are connected with the first end of potentiometer and the sliding end of potentiometer simultaneously, and the second of potentiometer
End simultaneously with the second end of thermistor, the base stage of the first triode, the second end of the first electric capacity and the first end of the second electric capacity
Connection, the second end of the second electric capacity simultaneously with the second end of second resistance, the colelctor electrode of the first triode and 3rd resistor the
One end connects, and the emitter stage of the first triode is connected with the first end of the 4th resistance, the second end of the 4th resistance while with the 5th
Second end of resistance connects with the emitter stage of the second triode, the base stage of the second triode simultaneously with the second end of the 7th resistance and
The second end connection of 3rd resistor, the colelctor electrode of the second triode simultaneously with the second end of the 6th resistance and the base of the 3rd triode
Pole connects, the colelctor electrode of the 3rd triode while second with the colelctor electrode of the 4th triode, the positive pole of diode and relay
End connection, the emitter stage of the 3rd triode are connected with the base stage of the 4th triode, the emitter stage and the 8th resistance of the 4th triode
The connection of the second end, the controlling switch of relay is connected in the electric power loop of fan electromotor.
The beneficial effects of the utility model are：
The utility model is a kind of fan automatic switch, and compared with prior art, the utility model passes through induced environment temperature
Degree, it is practical and convenient especially in the state of no supervision so as to the operation of automatic control electric fan, there is the valency of popularization and application
Value.
Brief description of the drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1：The utility model include first resistor R1 to the 8th resistance R8, the first electric capacity C1, the second electric capacity C2,
First triode VT1 is same to the 4th triode VT4, potentiometer RP, thermistor RT, diode D and relay K, positive source
When with first resistor R1 first end, second resistance R2 first end, the 6th resistance R6 first end, diode D negative pole and
Relay K first end connection, power cathode simultaneously with thermistor RT first end, the first electric capacity C1 first end, the 5th
Resistance R5 first end, the 7th resistance R7 first end connect with the 8th resistance R8 first end, first resistor R1 the second end
Be connected simultaneously with potentiometer RP first end and potentiometer RP sliding end, potentiometer RP the second end and meanwhile with thermistor RT
The second end, the first triode VT1 base stage, the first electric capacity C1 the second end connected with the second electric capacity C2 first end, second
Electric capacity C2 the second end simultaneously with second resistance R2 the second end, the first triode VT1 colelctor electrode and 3rd resistor R3 the
One end is connected, and the first triode VT1 emitter stage is connected with the 4th resistance R4 first end, and the 4th resistance R4 the second end is simultaneously
It is connected with the 5th resistance R5 the second end and the second triode VT2 emitter stage, the second triode VT2 base stage is simultaneously with the 7th
Resistance R7 the second end connects with 3rd resistor R3 the second end, the second triode VT2 colelctor electrode simultaneously with the 6th resistance R6
The second end connected with the 3rd triode VT3 base stage, the 3rd triode VT3 colelctor electrode is simultaneously with the 4th triode VT4's
Colelctor electrode, diode D positive pole connect with relay K the second end, the 3rd triode VT3 emitter stage and the 4th triode
VT4 base stage connection, the 4th triode VT4 emitter stage are connected with the 8th resistance R8 the second end, relay K controlling switch
(not shown) is connected in the electric power loop of fan electromotor.
Operation principle of the present utility model is as follows：
By thermistor RT induced environment temperature, if environment temperature is too high, the electric current for flowing through thermistor RT just increases
Add, the first triode VT1 conductings, the second triode VT2 and the 3rd triode VT3 carry out signal amplification, and the signal after amplification touches
The 4th triode VT4 conductings are sent out, relay K obtains electric, the controlling switch closure of relay, the power supply of electric fan is connected, so as to certainly
Dynamic to start electric fan, potentiometer RP is used for the temperature sensor for adjusting setting thermistor RT.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (1)
- A kind of 1. fan automatic switch, it is characterised in that：Including first resistor to the 8th resistance, the first electric capacity, the second electric capacity, One triode to the 4th triode, potentiometer, thermistor, diode and relay, positive source simultaneously with first resistor First end, the first end of second resistance, the first end of the 6th resistance, the negative pole of diode connect with the first end of relay, electricity Source negative pole simultaneously with the first end of thermistor, the first end of the first electric capacity, the first end of the 5th resistance, the 7th resistance first End connects with the first end of the 8th resistance, the second end of first resistor and meanwhile with the first end of potentiometer and the sliding end of potentiometer Connection, the second end of potentiometer simultaneously with the second end of thermistor, the base stage of the first triode, the first electric capacity the second end and The first end connection of second electric capacity, the second end of the second electric capacity the second end with second resistance, the current collection of the first triode simultaneously Pole is connected with the first end of 3rd resistor, and the emitter stage of the first triode is connected with the first end of the 4th resistance, the 4th resistance Second end is connected with the second end of the 5th resistance and the emitter stage of the second triode simultaneously, and the base stage of the second triode is simultaneously with the Second end of seven resistance connects with the second end of 3rd resistor, the colelctor electrode of the second triode while the second end with the 6th resistance Connected with the base stage of the 3rd triode, the colelctor electrode with the 4th triode, diode be just simultaneously for the colelctor electrode of the 3rd triode Pole is connected with the second end of relay, and the emitter stage of the 3rd triode is connected with the base stage of the 4th triode, the 4th triode Emitter stage is connected with the second end of the 8th resistance, and the controlling switch of relay is connected in the electric power loop of fan electromotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899488.5U CN207049052U (en) | 2017-07-24 | 2017-07-24 | A kind of fan automatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899488.5U CN207049052U (en) | 2017-07-24 | 2017-07-24 | A kind of fan automatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049052U true CN207049052U (en) | 2018-02-27 |
Family
ID=61497524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720899488.5U Expired - Fee Related CN207049052U (en) | 2017-07-24 | 2017-07-24 | A kind of fan automatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049052U (en) |
-
2017
- 2017-07-24 CN CN201720899488.5U patent/CN207049052U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20180724 |