CN2092777U - Temp. sensing random controller - Google Patents
Temp. sensing random controller Download PDFInfo
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- CN2092777U CN2092777U CN 91202378 CN91202378U CN2092777U CN 2092777 U CN2092777 U CN 2092777U CN 91202378 CN91202378 CN 91202378 CN 91202378 U CN91202378 U CN 91202378U CN 2092777 U CN2092777 U CN 2092777U
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Abstract
The utility model provides an electronic electrical apparatus which is sensitive to temperature change and can obtain random control effect through taking part in nature circulation. The utility model can be matched with and applied to various ventilation electric apparatuses such as an electric fan and an air conditioner to be used as a simulated natural wind controller, and can also be applied to the field of measurement and transducing in the form of a temperature sensitive detection circuit. The utility model is characterized in that the heat of a heating element is free from load influence, and the heating element acts on a temperature sensitive control circuit through air in order to control the on-off state of the load switch. The utility model has the advantages of good random effect, good stabilization, high detection sensitivity and simple structure.
Description
It is a kind of to the temperature variation sensitivity that the utility model provides, by participating in the electric device that the Nature circulation obtains randomness control effect.Can be used on the ventilation electrical equipment such as all kinds of electric fans, air conditioner, air curtain; Can be used as the STOCHASTIC CONTROL device and be applied to other aspects; Also can be used as temperature sensitive circuit application in the detection technique field.
Having now all kinds of is the micro computer natural wind simulating circuit of circuit main body with the pseudo-noise code generator, repeats because of the cycle is arranged, and the natural wind simulating effect is true to nature inadequately, comfortable; Moreover its peripheral circuit complexity, is subject to disturb at the cost costliness, makes and has applied certain difficulty.
The patent No. of the power of patenting October 24 nineteen ninety is that 89200555,6 " platform electric fan natural wind gentle breeze Mk " is though overcome the shortcoming of foregoing circuit, obtained cost not as good as 1/5 of import micro computer, the comparatively ideal STOCHASTIC CONTROL voltage of effect with the temperature control circuit form.But because sample resistance and the load of this circuit be in series, be to rely on the working current of load to generate heat to control the action of temperature sensitive switch, following shortcoming arranged:
(1) load not simultaneously, effect is different: because the electric fan power of each producer's same specification is different, the power difference of each grade of electric fan is also bigger, during the electric fan of adapted different manufacturers, the effect that is produced is also different.
(2) adaptive loading range is narrow: the primary circuit scope of design is platform electric fan, box fan and the derivation fan thereof of adaptive 300mm～400mm.If adapted surpasses the electric fan of this scope and working current when changing big load, primary circuit can't satisfy index request.
(3) load does not obtain full voltage: because of sample resistance is connected in the load circuit, fall certain voltage.Loaded work piece voltage is on the low side, the output power deficiency, even can have influence on the air quantity index of electric fan.
Therefore, a natural wind simulating controller delicate structure, that can overcome above-mentioned shortcoming being provided for wider ventilation electrical equipment is the purpose of this utility model.
Structure of the present utility model is as described below, with reference to accompanying drawing:
Select for use one to be connected on 220
V ～In the power circuit dissipated power be the resistance of 2W as heater, heater is in parallel with load to be connected on power end by switch.Choose thermally sensitive components and parts (temperature sensitive switch of thermistor or bimetallic strip) as temperature sensor, again according to the corresponding control circuit of temperature sensor characteristic (heated resistance change or be subjected to thermal deformation) configuration.Heater and temperature sensor are spatially adjacent, and the heat that produces on the heater is transmitted on the temperature sensor through the space.Temperature control circuit is the control voltage of " leading to " or " breaking " according to the intensity of variation output state of temperature sensor.Switch opens or closes load according to control voltage.This switch can be selected devices such as bidirectional triode thyristor, solid-state relay, electromagnetic relay for use.
Be characterized in that heater, air, temperature sensor, temperature control circuit and switch constitute the environment temperature sensitive control circuit.
The utlity model has the temperature control form that keeps former patent exquisiteness; Do not influence load performance again; The natural wind effect is not subjected to load effect; Advantage such as range of application is widely arranged.
Be described in detail below in conjunction with accompanying drawing:
This circuit adopts thermistor to make temperature sensor (2), adopts ready-made Schmidt circuit (as LM324, NE555 etc.) to make temperature control circuit (3), and bidirectional triode thyristor is made load switch (4).
Under the normal temperature, temperature control circuit (3) goes out " leading to " control voltage, and switch (4) is logical.Input voltage is received in heater (1) and the load by bidirectional triode thyristor (4).Heater (1) heats up, and the heat that heater (1) produces is to space radiation, contiguous temperature sensor (2) heated resistance change (decline).Behind the certain hour, heater (1) reaches the T1 temperature on every side, and temperature sensor (2) resistance drops to particular value R1, temperature control circuit (3) upset.Output " breaking " control voltage, switch (4) " is broken " by " leading to " change, and heater (1) progressively descends because of the outage temperature, and contiguous temperature sensor (2) is progressively cooling also.Behind the certain hour, temperature sensor (2) temperature drops to T2, when resistance rises to R2, and temperature control circuit (3) " leading to " attitude of overturning back again, switch (4) " leads to ".Loaded work piece, heater (1) heats up ... circulation repeatedly.
In above-mentioned control procedure,, also be that randomness changes because indoor air flow is the airflow influence that changed by outdoor randomness.The heat of heater (1) is affected by environment, and being radiated on the temperature sensor (2) also is the variation of randomness, and temperature control circuit (3) also is that randomness changes to the control of switch (4).So switch (4) has just carried out the switch control of randomness to load.By adjusting the parameter of temperature control circuit (3), the distance between heater (1) and the temperature sensor (2) can obtain the randomness control signal of different time parameter different-effect.
Canonical parameter index of the present utility model is:
Environment temperature is 20 ℃～40 ℃, T1=55 ℃, and T2=51 ℃
Control time is randomness switch combination in 1～75 second, and be 5～25 seconds basic time, like this, cooperates ventilation electrical equipment just can obtain, realistically stochastic model natural wind abundanter than microcomputer controller.Be applied in the information that just can be used for picking up variation of ambient temperature in the detection technique.
Claims (2)
1, temperature sense STOCHASTIC CONTROL device of forming by heater (1), temperature sensor (2), temperature control circuit (3), switch (4), it is characterized in that heater (1), temperature sensor (2) by the ambient air temperature circulation, constitute the control loop to the variation of ambient temperature sensitivity with temperature control circuit (3), switch (4).
2, by the described device of claim 1, it is characterized in that heater (1) and load are to be connected in parallel, connect power supply through switch (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91202378 CN2092777U (en) | 1991-02-05 | 1991-02-05 | Temp. sensing random controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91202378 CN2092777U (en) | 1991-02-05 | 1991-02-05 | Temp. sensing random controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092777U true CN2092777U (en) | 1992-01-08 |
Family
ID=4912933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91202378 Withdrawn CN2092777U (en) | 1991-02-05 | 1991-02-05 | Temp. sensing random controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990015A (en) * | 2021-09-08 | 2022-01-28 | 华能南京金陵发电有限公司 | Fire alarm system for steam-electric double-drive steam turbine factory |
-
1991
- 1991-02-05 CN CN 91202378 patent/CN2092777U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990015A (en) * | 2021-09-08 | 2022-01-28 | 华能南京金陵发电有限公司 | Fire alarm system for steam-electric double-drive steam turbine factory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |