CN207050421U - Dryer automatic constant temperature controller - Google Patents
Dryer automatic constant temperature controller Download PDFInfo
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- CN207050421U CN207050421U CN201721012088.4U CN201721012088U CN207050421U CN 207050421 U CN207050421 U CN 207050421U CN 201721012088 U CN201721012088 U CN 201721012088U CN 207050421 U CN207050421 U CN 207050421U
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- resistor
- resistance
- potentiometer
- voltage comparator
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Abstract
The utility model discloses a kind of dryer automatic constant temperature controller, including battery, first resistor to the 5th resistance, electric capacity, thermistor, potentiometer, voltage comparator, triode, controllable silicon and heating tube, compared with prior art, the voltage comparator composition temperature sensing circuit of the utility model thermistor, first resistor to 3rd resistor, electric capacity and potentiometer and model LM358, its accuracy of detection is high, heating tube is controlled using controllable silicon, high sensitivity is controlled, the value with popularization and application.
Description
Technical field
It the utility model is related to electronic technology field, more particularly to a kind of dryer automatic constant temperature controller.
Background technology
Dryer has the several modes such as belt drying, roller drying, box drying, tower drying；Thermal source has coal, electricity, gas
Deng；In the prior art, the either dryer of which kind of thermal source, is required for temperature control within the specific limits, could be had
The drying of effect, dryer of the thermal source for electricity is directed to, in order to improve temperature control precision, it is necessary to constantly improve and innovate.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of dryer automatic constant temperature controller.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model include battery, first resistor to the 5th resistance, electric capacity, thermistor, potentiometer, voltage ratio compared with
Device, triode, controllable silicon and heating tube, the positive pole of the battery first end with heating tube, the emitter stage of triode, the simultaneously
The first end of two resistance connects with the first end of thermistor, the negative pole of battery negative pole with controllable silicon, 3rd resistor simultaneously
First end, the first end of electric capacity connect with the first end of first resistor, the second end of first resistor simultaneously with thermistor the
Two ends, the second end of electric capacity connect with the inversion signal input of voltage comparator, the second end of second resistance and potentiometer
First end connects, and the second end of the second end of potentiometer and 3rd resistor connects, the sliding end of potentiometer and voltage comparator
Positive signal input part is connected, and the signal output part of voltage comparator is connected by the base stage of the 4th resistance and triode, three poles
The colelctor electrode of pipe is connected by the control terminal of the 5th resistance and controllable silicon, and the positive pole of controllable silicon and the second end of heating tube connect.
The beneficial effects of the utility model are：
The utility model is a kind of dryer automatic constant temperature controller, compared with prior art, the utility model temperature-sensitive electricity
The voltage comparator composition temperature sensing circuit of resistance, first resistor to 3rd resistor, electric capacity and potentiometer and model LM358, its
Accuracy of detection is high, and heating tube is controlled using controllable silicon, controls high sensitivity, the value with popularization and application.
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 includes battery E, first resistor R1 to the 5th resistance R5, electric capacity C, thermistor
RT, potentiometer RP, voltage comparator ic, triode VT, controllable silicon SCR and heating tube RL, the battery E positive pole are simultaneously with adding
Heat pipe RL first end, triode VT emitter stage, second resistance R2 first end connect with thermistor RT first end, electricity
Pond E negative pole simultaneously with the negative pole of controllable silicon SCR, 3rd resistor R3 first end, electric capacity C first end and first resistor R1
First end connects, first resistor R1 the second end simultaneously with thermistor RT the second end, electric capacity C the second end and voltage ratio compared with
Device IC inversion signal input connection, second resistance R2 the second end are connected with potentiometer RP first end, potentiometer RP's
Second end is connected with 3rd resistor R3 the second end, potentiometer RP sliding end and the positive signal input part of voltage comparator ic
Connection, the signal output part of voltage comparator ic are connected by the 4th resistance R4 with triode VT base stage, triode VT collection
Electrode is connected by the control terminal of the 5th resistance R5 and controllable silicon SCR, and the positive pole of controllable silicon SCR connects with heating tube RL the second end
Connect.
Operation principle of the present utility model is as follows：
Thermistor RT, first resistor R1 to 3rd resistor R3, electric capacity C and potentiometer RP and model LM358 voltage ratio
Temperature sensing circuit is formed compared with device IC, thermistor RT is semistor；Adjust potentiometer RP, you can regulation temperature
Degree starts to control a little, for example, it is assumed that temperature control below 45 DEG C, first potentiometer RT is placed in 45 DEG C of hot water, carefully adjusted
Nodal potential device RP, make untill voltage comparator ic just exports high level.When temperature be less than 45 DEG C when, thermistor RT resistances compared with
Small, the inversion signal terminal potential of voltage comparator ic is higher than positive signal input part current potential, exports low level, triode VT, can
Control silicon SCR is both turned on, heating tube RL heating；With the rise of temperature during heating, thermistor RT resistances start to become big, anti-phase letter
Number terminal potential gradually reduces, and when inversion signal terminal potential is less than positive signal terminal potential, exports as high level, triode VT,
Controllable silicon SCR is turned off, and heating stops.
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. dryer automatic constant temperature controller, it is characterised in that：Including battery, first resistor to the 5th resistance, electric capacity, heat Quick resistance, potentiometer, voltage comparator, triode, controllable silicon and heating tube, the positive pole of the battery simultaneously with heating tube the One end, the emitter stage of triode, the first end of second resistance connect with the first end of thermistor, the negative pole of battery simultaneously with can The control negative pole of silicon, the first end of 3rd resistor, the first end of electric capacity connect with the first end of first resistor, and the second of first resistor End is connected with the inversion signal input at the second end of thermistor, the second end of electric capacity and voltage comparator simultaneously, the second electricity Second end of resistance and the first end of potentiometer connect, and the second end of potentiometer and the second end of 3rd resistor connect, potentiometer The positive signal input part of sliding end and voltage comparator connects, and the signal output part of voltage comparator passes through the 4th resistance and three The base stage connection of pole pipe, the colelctor electrode of triode are connected by the control terminal of the 5th resistance and controllable silicon, the positive pole of controllable silicon with The second end connection of heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721012088.4U CN207050421U (en) | 2017-08-14 | 2017-08-14 | Dryer automatic constant temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721012088.4U CN207050421U (en) | 2017-08-14 | 2017-08-14 | Dryer automatic constant temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207050421U true CN207050421U (en) | 2018-02-27 |
Family
ID=61503942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721012088.4U Expired - Fee Related CN207050421U (en) | 2017-08-14 | 2017-08-14 | Dryer automatic constant temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207050421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469853A (en) * | 2018-05-10 | 2018-08-31 | 重庆第二师范学院 | A kind of chemical reaction automatic heat preserving controller |
-
2017
- 2017-08-14 CN CN201721012088.4U patent/CN207050421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469853A (en) * | 2018-05-10 | 2018-08-31 | 重庆第二师范学院 | A kind of chemical reaction automatic heat preserving controller |
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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: 20180227 Termination date: 20180814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |