CN207115221U - A kind of fan automatic switching circuit for ATM radiating - Google Patents
A kind of fan automatic switching circuit for ATM radiating Download PDFInfo
- Publication number
- CN207115221U CN207115221U CN201720777356.5U CN201720777356U CN207115221U CN 207115221 U CN207115221 U CN 207115221U CN 201720777356 U CN201720777356 U CN 201720777356U CN 207115221 U CN207115221 U CN 207115221U
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- transistor
- battery
- fan
- atm
- switching circuit
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Abstract
The utility model discloses a kind of fan automatic switching circuit for ATM radiating, including fan M and battery G, fan M is connected by relay K contact switch with civil power, battery G positive pole is connected by resistance R1 with slide rheostat RP1 one end, the slide rheostat RP1 other end is connected by thermistor RT with battery G negative pole, the slide rheostat RP1 other end is also connected by transistor Q1 base stage, pass through transistor Q1, coordinate transistor Q2, Q3, Q4, driving relay K coils are switched on or off, so as to realize control fan M work or be stopped.The utility model is turned on when temperature is too high by transistor controls relay coil, contact switch closure, makes fan normal work；When the temperature is low, it is not turned on by transistor controls relay coil, contact switch disconnects, and fan is stopped, and circuit is simple, easily realizes, has a good application prospect.
Description
Technical field
A kind of fan automatic switching circuit for ATM radiating is the utility model is related to, belongs to automatic control technology neck
Domain.
Background technology
ATM can produce larger heat, it is necessary to be radiated in time to it, ensure its normal operation when working long-term, this
When, it is necessary to fan open it is radiated, when ATM environment temperature reduce after, fan can be closed, still, at present, ATM
The fan of radiating, all it is always on, causes the waste of the energy, how to set a kind of simple and reliable, cost is cheap is used for
The fan automatic switching circuit of ATM radiating, automatically controls according to environment temperature, is to be currently needed for solving the problems, such as.
Utility model content
The purpose of the utility model is to overcome existing fan, it is impossible to the problem of being automatically controlled according to environment temperature.This
The fan automatic switching circuit for being used for ATM radiating of utility model, the temperature of current environment is gathered by thermistor, works as temperature
When spending high, turned on by transistor controls relay coil, contact switch closure, make fan normal work；When temperature is relatively low
When, it is not turned on by transistor controls relay coil, contact switch disconnects, and fan is stopped, realizes according to ATM ring
The fan of border temperature automatically controls, and circuit is simple, easily realizes, has a good application prospect.
In order to achieve the above object, technical scheme is used by the utility model：
A kind of fan automatic switching circuit for ATM radiating, it is characterised in that：Including fan M and battery G, institute
Fan M is stated by relay K contact switch with civil power to be connected,
The positive pole of the battery G is connected by resistance R1 with slide rheostat RP1 one end, the slide rheostat
The RP1 other end is connected by thermistor RT with battery G negative pole, and the other end of the slide rheostat RP1 is also logical
The base stage for crossing transistor Q1 is connected, and the emitter stage of the transistor Q1 is connected by resistance R2 with transistor Q2 emitter stage
Connect, the colelctor electrode of the transistor Q1 is connected by resistance R3 with battery G positive pole, and the colelctor electrode of the transistor Q1 is also
It is connected by resistance R4 with transistor Q2 base stage, the base stage of the transistor Q2 passes through resistance R5 and battery G negative pole
It is connected, the emitter stage of the transistor Q2 is connected by resistance R6 with battery G negative pole, the current collection of the transistor Q2
Pole is connected with transistor Q3 base stage, and the colelctor electrode of the transistor Q2 is also connected by resistance R7 with battery G positive pole
Connect, the colelctor electrode of the transistor Q3 is connected with light emitting diode D positive pole, the negative pole of the light emitting diode D and electric power storage
Pond G positive pole is connected, and the transistor Q3 emitter stages are connected with transistor Q4 base stage, the emitter stage of the transistor Q4
Be connected by resistance R8 with battery G negative pole, the colelctor electrode of the transistor Q3, transistor Q4 colelctor electrode jointly with after
One end of electrical equipment K coils is connected, and the other end of the relay K coils is connected with battery G positive pole.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：One end string of the civil power
It is associated with fuse F1, controlling switch S1.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：The base of the transistor Q1
Electric capacity C1 is additionally provided between pole and colelctor electrode.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：The hair of the transistor Q1
Emitter-base bandgap grading is connected by electric capacity C2 with battery G negative pole.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：The electricity of the battery G
Press as 9V.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：The transistor Q1, Q2,
Q3, Q4 use NPN type triode.
A kind of foregoing fan automatic switching circuit for ATM radiating, it is characterised in that：The battery G just,
Electric capacity C3 is parallel between negative pole.
The beneficial effects of the utility model are：Fan automatic switching circuit of the present utility model for ATM radiating, lead to
The temperature of temperature-sensitive electrical resistance collection current environment is crossed, when temperature is too high, is turned on by transistor controls relay coil, contact is opened
Close and close, make fan normal work；When the temperature is low, it is not turned on by transistor controls relay coil, contact switch breaks
Open, fan is stopped, realize and automatically controlled according to the fan of ATM environment temperature, circuit is simple, easily realizes, has
Good application prospect.
Brief description of the drawings
Fig. 1 is the circuit diagram of the fan automatic switching circuit of the present utility model for ATM radiating.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.Following examples are only used for more clear
Illustrate to Chu the technical solution of the utility model, and the scope of protection of the utility model can not be limited with this.
As shown in figure 1, the fan automatic switching circuit of the present utility model for ATM radiating, including fan M and electric power storage
Pond G, the fan M are connected by relay K contact switch with civil power,
The positive pole of the battery G is connected by resistance R1 with slide rheostat RP1 one end, the slide rheostat
The RP1 other end is connected by thermistor RT with battery G negative pole, and the other end of the slide rheostat RP1 is also logical
The base stage for crossing transistor Q1 is connected, and the emitter stage of the transistor Q1 is connected by resistance R2 with transistor Q2 emitter stage
Connect, the colelctor electrode of the transistor Q1 is connected by resistance R3 with battery G positive pole, and the colelctor electrode of the transistor Q1 is also
It is connected by resistance R4 with transistor Q2 base stage, the base stage of the transistor Q2 passes through resistance R5 and battery G negative pole
It is connected, the emitter stage of the transistor Q2 is connected by resistance R6 with battery G negative pole, the current collection of the transistor Q2
Pole is connected with transistor Q3 base stage, and the colelctor electrode of the transistor Q2 is also connected by resistance R7 with battery G positive pole
Connect, the colelctor electrode of the transistor Q3 is connected with light emitting diode D positive pole, the negative pole of the light emitting diode D and electric power storage
Pond G positive pole is connected, and the transistor Q3 emitter stages are connected with transistor Q4 base stage, the emitter stage of the transistor Q4
Be connected by resistance R8 with battery G negative pole, the colelctor electrode of the transistor Q3, transistor Q4 colelctor electrode jointly with after
One end of electrical equipment K coils is connected, and the other end of the relay K coils is connected with battery G positive pole.
One end of the civil power is in series with fuse F1, controlling switch S1, and fuse F1 can prevent that mains current is excessive,
Power supply is disconnected, prevents from burning out fan M.
Electric capacity C1 is additionally provided between the base stage and colelctor electrode of the transistor Q1, transistor Q1, transistor can be protected
Q1 emitter stage is connected by electric capacity C2 with battery G negative pole, and the voltage of the battery G is 9V, can ensure to be used for
The normal work of the fan automatic switching circuit of ATM radiating, described transistor Q1, Q2, Q3, Q4 use NPN type triode,
Cost is cheap, cheap batch production.
Electric capacity C3 is parallel between the positive and negative electrode of the battery G, battery G voltage can be filtered.
Fan automatic switching circuit of the present utility model for ATM radiating, operation principle are as follows：By sliding variable resistance
Device RP1 regulation, thermistor RT sensitivity is controlled, be converted to the temperature threshold of current environment, when temperature is too high, crystal
The voltage increase of pipe Q1 base stages, after the temperature threshold of setting, is turned between transistor Q1 base-emitter, so as to brilliant
Body pipe Q2, Q3, Q4 are sequentially turned on, and transistor Q4 conductings, relay K coils also turn on therewith, fan M normal works；Work as temperature
When too low, transistor Q1 base stages are gradually reduced, after the temperature threshold of setting, between transistor Q1 base-emitter
Cut-off, so as to which transistor Q2, Q3, Q4 end successively, transistor Q4 cut-offs, relay K coils are also not turned on therewith, and fan M stops
Only work.
In summary, the fan automatic switching circuit of the present utility model for ATM radiating, is gathered by thermistor
The temperature of current environment, when temperature is too high, turned on by transistor controls relay coil, contact switch closure, make fan
Normal work；When the temperature is low, it is not turned on by transistor controls relay coil, contact switch disconnects, and stops fan
Work, realize and automatically controlled according to the fan of ATM environment temperature, circuit is simple, easily realize, before there is good application
Scape.
General principle of the present utility model, main features and advantages have been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model requires protection scope
By appended claims and its equivalent thereof.
Claims (7)
- A kind of 1. fan automatic switching circuit for ATM radiating, it is characterised in that：It is described including fan M and battery G Fan M is connected by relay K contact switch with civil power,The positive pole of the battery G is connected by resistance R1 with slide rheostat RP1 one end, the slide rheostat RP1 The other end be connected by thermistor RT with battery G negative pole, the other end of the slide rheostat RP1 also passes through crystalline substance Body pipe Q1 base stage is connected, and the emitter stage of the transistor Q1 is connected by resistance R2 with transistor Q2 emitter stage, institute The colelctor electrode for stating transistor Q1 is connected by resistance R3 with battery G positive pole, and the colelctor electrode of the transistor Q1 also passes through Resistance R4 is connected with transistor Q2 base stage, and the base stage of the transistor Q2 is connected by resistance R5 with battery G negative pole Connect, the emitter stage of the transistor Q2 is connected by resistance R6 with battery G negative pole, the colelctor electrode of the transistor Q2 with Transistor Q3 base stage is connected, and the colelctor electrode of the transistor Q2 is also connected by resistance R7 with battery G positive pole, institute The colelctor electrode for stating transistor Q3 is connected with light emitting diode D positive pole, and the negative pole of the light emitting diode D is with battery G's Positive pole is connected, and the transistor Q3 emitter stages are connected with transistor Q4 base stage, and the emitter stage of the transistor Q4 passes through Resistance R8 is connected with battery G negative pole, and the colelctor electrode of the transistor Q3, transistor Q4 colelctor electrode are jointly and relay One end of K coils is connected, and the other end of the relay K coils is connected with battery G positive pole.
- A kind of 2. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described One end of civil power is in series with fuse F1, controlling switch S1.
- A kind of 3. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described Electric capacity C1 is additionally provided between transistor Q1 base stage and colelctor electrode.
- A kind of 4. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described Transistor Q1 emitter stage is connected by electric capacity C2 with battery G negative pole.
- A kind of 5. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described Battery G voltage is 9V.
- A kind of 6. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described Transistor Q1, Q2, Q3, Q4 use NPN type triode.
- A kind of 7. fan automatic switching circuit for ATM radiating according to claim 1, it is characterised in that：It is described Electric capacity C3 is parallel between battery G positive and negative electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720777356.5U CN207115221U (en) | 2017-06-30 | 2017-06-30 | A kind of fan automatic switching circuit for ATM radiating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720777356.5U CN207115221U (en) | 2017-06-30 | 2017-06-30 | A kind of fan automatic switching circuit for ATM radiating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207115221U true CN207115221U (en) | 2018-03-16 |
Family
ID=61586244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720777356.5U Expired - Fee Related CN207115221U (en) | 2017-06-30 | 2017-06-30 | A kind of fan automatic switching circuit for ATM radiating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207115221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203235A (en) * | 2017-06-30 | 2017-09-26 | 苏州锟恩电子科技有限公司 | A kind of fan automatic switching circuit radiated for ATM |
-
2017
- 2017-06-30 CN CN201720777356.5U patent/CN207115221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107203235A (en) * | 2017-06-30 | 2017-09-26 | 苏州锟恩电子科技有限公司 | A kind of fan automatic switching circuit radiated for ATM |
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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 |
Granted publication date: 20180316 Termination date: 20180630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |