CN201044057Y - Fixed form fan thermoregulation controller - Google Patents
Fixed form fan thermoregulation controller Download PDFInfo
- Publication number
- CN201044057Y CN201044057Y CNU200720063283XU CN200720063283U CN201044057Y CN 201044057 Y CN201044057 Y CN 201044057Y CN U200720063283X U CNU200720063283X U CN U200720063283XU CN 200720063283 U CN200720063283 U CN 200720063283U CN 201044057 Y CN201044057 Y CN 201044057Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- natural wind
- fan
- temperature
- temperature control
- 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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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A fixed fan heat control comprises an external box and a circuit board fixed in the box; the external box is equipped with a power wire hole, a fan socket hole, a ventilation temperature sensing hole and an indication light; the circuit board is equipped with a power circuit, a temperature control circuit, a natural wind circuit and an output circuit; a monopole double throw switch is arranged between the temperature control circuit and the natural wind circuit and the temperature control circuit consists of an integrated chip LM324 and resistances R1, R2, R3, R5, R6, R7 and R10 which are connected; the R3 is a thermistor and the R3, R5 and R7 are separately earthed; the R10 is connected with a diode D5 in series and connected with an output SCR; the natural wind circuit consists of an integrated chip NE555, resistances R8 and R9, a capacitance C4 and C5 which are connected with each other. With the utility model, when the room temperature is higher than the set high value, the fan blows strong wind and when the room temperature is between the set high and low values, the fan blows natural wind and when the room temperature is lower than the set low value, the fan stops work.
Description
Technical field
The utility model relates to household electrical appliance, promptly a kind of fixed fan temperature controller.
Background technology
Present electric fan can not change rotating speed with the variation of room temperature, thus night room temperature reduce, when people are sleeping gradually, the easy blower fan flu of many people.
Summary of the invention
In order to overcome the shortcoming that present electric fan can not change rotating speed with the variation of room temperature, the utility model proposes a kind of new design of fixed fan temperature controller.
This fixed fan temperature controller, comprise outer box and the circuit board that is fixed in the box, power lead hole, electric fan socket aperture, ventilation temperature sensing hole and pilot lamp are arranged on the outer box, power circuit, temperature control circuit, natural wind circuit and output circuit are arranged on the circuit board, be electrically connected between them, between temperature control circuit and the natural wind circuit single-pole double-throw switch (SPDT) is arranged, it is characterized in that, temperature control circuit is by integrated chip LM324 and resistance R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
10Be electrically connected and form, wherein R
3Be thermistor, R
3, R
5, R
7Difference ground connection, R
10With diode D
5Contact, and link to each other with the output controllable silicon SCR, the natural wind circuit is by integrated chip NE555 and resistance R
8, R
9, capacitor C
4, C
5Be electrically connected and form.
Adopt capacitance decompression in the power circuit.
Output circuit adopts controllable silicon SCR control, is connected with diode between controllable silicon SCR and the single-pole double-throw switch (SPDT).
Course of action is as follows:
1, earlier this controller is plugged in, on the socket of this controller, plug fan, the thermistor R in the temperature control circuit
3Automatically detect room temperature, when when the low-temperature values of setting is following, R
2, R
3, and R
4, R
5, the bridge balance formed, 2 pin of LM324 and 3 pin voltages equate that so temperature control circuit is failure to actuate, electric fan does not rotate; When between low temperature that room temperature is being set and the high temperature, R
2, R
3And R
4, R
5, the electric bridge imbalance formed, 2 pin of LM324,3 pin voltages are unequal, thus the output of 1 pin of LM324, thereby it is electric that NE555 is got, NE555 and R
8, R
9, C
5Form bistable circuit, the break-make of 7 pin of NE555 makes the 3 pin switch-on and-off of NE555, and make-and-break time is by R
8, R
9, C
5Numerical value decision, output voltage cuts in and out, and makes rotation speed of the fan sometimes fast and sometimes slow, fan output natural wind; When room temperature is on the high temperature of setting, R
2, R
3, and R
6, R
7The electric bridge imbalance of forming, 12 pin of LM324,13 pin voltages are unequal, and the 14 pin output of LM324 triggers controllable silicon SCR, and fan is exported at full capacity, has been not natural wind.
2, when between the high and low temperature of room temperature in setting value, the output natural wind, if do not need natural wind, can be with K
1Switch pulls out to another side, i.e. the right side among the figure cuts off natural wind output, and fan is exported at full capacity, when room temperature when the low-temperature values of setting is following, fan can stop output equally.
The utility model has the advantages that:
1, the utility model can adopt import integrated circuit and controllable silicon, stable performance, and compact conformation uses capacitance decompression to supply with complete machine work, very economize on electricity, also safety.
2, select suitable thermistor, be placed near the ventilation temperature sensing hole, configure high temperature values and low-temperature values after, need not outside the adjusting.
3, when room temperature was higher than the high temperature values of setting, electric fan blew high wind, when room temperature is between high and low setting value, electric fan is exported natural wind automatically (as not needing natural wind, stirring single-pole double-throw switch (SPDT) gets final product), when room temperature was lower than the low-temperature values of setting, it quit work automatically.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail as follows:
The left side is a power circuit among Fig. 1, and middle upper portion is a temperature control circuit, and middle lower portion is the natural wind circuit, and the right side is an output circuit, and a single-pole double-throw switch (SPDT) K is arranged between temperature control circuit and the natural wind circuit
1, temperature control circuit is by integrated chip LM324 and resistance R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
10Be electrically connected and form, wherein R
3Be thermistor, R
3, R
5, R
7Difference ground connection, R
10With diode D
5The polyphone and with output controllable silicon SCR link to each other, the natural wind circuit is by integrated chip NE555 and resistance R
8, R
9, capacitor C
4, C
5Be electrically connected and form.
Adopt big capacitor C in the power circuit
1Step-down adds conventional D
1～D
4Diode rectification, the voltage stabilizing of 2 DW diodes, electrochemical capacitor C
2, C
3Controllable silicon SCR control is adopted in filtering in the output circuit.
Claims (3)
1. fixed fan temperature controller, comprise outer box and the circuit board that is fixed in the box, power lead hole, electric fan socket aperture, ventilation temperature sensing hole and pilot lamp are arranged on the outer box, power circuit, temperature control circuit, natural wind circuit and output circuit are arranged on the circuit board, be electrically connected between them, between temperature control circuit and the natural wind circuit single-pole double-throw switch (SPDT) is arranged, it is characterized in that, temperature control circuit is by integrated chip LM324 and resistance R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
10Be electrically connected and form, wherein R
3Be thermistor, R
3, R
5, R
7Difference ground connection, R
10With diode D
5Contact, and link to each other with the output controllable silicon SCR, the natural wind circuit is by integrated chip NE555 and resistance R
8, R
9, capacitor C
4, C
5Be electrically connected and form.
2. fixed fan temperature controller according to claim 1 is characterized in that, adopts capacitance decompression in the power circuit.
3. fixed fan temperature controller according to claim 1 is characterized in that, output circuit adopts controllable silicon SCR control, is connected with diode between controllable silicon SCR and the single-pole double-throw switch (SPDT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720063283XU CN201044057Y (en) | 2007-05-19 | 2007-05-19 | Fixed form fan thermoregulation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720063283XU CN201044057Y (en) | 2007-05-19 | 2007-05-19 | Fixed form fan thermoregulation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044057Y true CN201044057Y (en) | 2008-04-02 |
Family
ID=39258947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720063283XU Expired - Fee Related CN201044057Y (en) | 2007-05-19 | 2007-05-19 | Fixed form fan thermoregulation controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201044057Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219816A (en) * | 2013-05-30 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp overheating protection circuit and lamp |
| CN110404179A (en) * | 2019-08-14 | 2019-11-05 | 刘志伟 | A kind of temperature control neurosurgery baking power control circuit |
-
2007
- 2007-05-19 CN CNU200720063283XU patent/CN201044057Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219816A (en) * | 2013-05-30 | 2014-12-17 | 海洋王（东莞）照明科技有限公司 | Lamp overheating protection circuit and lamp |
| CN104219816B (en) * | 2013-05-30 | 2017-02-08 | 海洋王（东莞）照明科技有限公司 | lamp overheating protection circuit and lamp |
| CN110404179A (en) * | 2019-08-14 | 2019-11-05 | 刘志伟 | A kind of temperature control neurosurgery baking power control circuit |
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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: 20080402 |