CN107894796A - A kind of electronic thermostat - Google Patents
A kind of electronic thermostat Download PDFInfo
- Publication number
- CN107894796A CN107894796A CN201711073368.0A CN201711073368A CN107894796A CN 107894796 A CN107894796 A CN 107894796A CN 201711073368 A CN201711073368 A CN 201711073368A CN 107894796 A CN107894796 A CN 107894796A
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- China
- Prior art keywords
- key
- temperature
- chip microcomputer
- power
- indicator
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of electronic thermostat,Including circuit board,Fixed screw,Nixie display,Power supply indicator,Run indicator,Temperature model indicator lamp,Power mode indicator lamp,Controllable silicon,Subtract key,Function key,Plus key,First resistor,Amplifying circuit,Second resistance,Single-chip microcomputer,Cold junction compensation,3rd resistor,Photoelectrical coupler,Power line,Temperature sensor,A kind of electronic thermostat of the present invention is by setting single-chip microcomputer,Controllable silicon and thermocouple,Realize the collection and control to temperature in electric chafing dish,And add led and show and touch key-press,Operation is directly perceived,Pid algorithm incorporates,Realize that laser heating is uninterrupted,Make kettle temperature constant,Can be accurately temperature stabilization control within the scope of design temperature ± 1 DEG C,Power mode,Boil chafing dish,Stew congee,Stew and need to use small fire,It is preset with power mode,User can adjust watt level to realize traditional big fire small fire,Non-overflow pan,Power saving.
Description
Technical field
The present invention is a kind of electronic thermostat, belongs to temperature controller field.
Background technology
Electric heating pipe type chafing dish structure is that heating tube is set in the bottom of a pan, and pot profile common are square and circular.Control mode is
Kettle temperature is controlled using mechanical thermostat, principle is that temperature is transmitted to bimetal leaf by one, the bottom of a pan heat conducting pipe,
It is different using bimetallic thermal coefficient of expansion, to determine contact open and close, so that kettle temperature automatic stabilisation is in certain limit, temperature
It is big to control error, fluctuation is big, influences food production effect and speed, controls temperature by switch on and off, can not realize power output
Control, mechanical temperature probe precision is low, and reaction is slow.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of electronic thermostat, to solve temperature control error
Greatly, fluctuation is big, influences food production effect and speed, controls temperature by switch on and off, can not realize output power, machine
Tool temp probe precision is low, reacts the problem of slow.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of electronic thermostat, including
Circuit board, fixed screw, nixie display, power supply indicator, run indicator, temperature model indicator lamp, power mode instruction
Lamp, controllable silicon, subtract key, function key, plus key, first resistor, amplifying circuit, second resistance, single-chip microcomputer, cold junction compensation, the 3rd electricity
Resistance, photoelectrical coupler, power line, temperature sensor, the circuit board front surface left end and fixed screw bolt connection, it is described solid
Determine to be provided with nixie display, and nixie display and welding circuit board on the right side of screw, the circuit board is provided with electricity
Source indicator lamp, the power supply indicator right side are provided with run indicator, temperature model are provided with the right side of the run indicator
Indicator lamp, is provided with power mode indicator lamp on the right side of the temperature model indicator lamp, on the right side of the nixie display upper end with can
Silicon welding is controlled, the nixie display bottom, which is provided with, subtracts key, and described subtract is provided with function key on the right side of key, on the right side of the function key
Provided with plus key, first resistor is provided with the right side of the nixie display, amplifying circuit is provided with the right side of the first resistor, it is described
Second resistance is provided with the right side of amplifying circuit, single-chip microcomputer, the single-chip microcomputer right side and cold end are provided with below the amplifying circuit
Compensation welding, the cold junction compensation lower right-hand side are provided with 3rd resistor, photoelectrical coupler are provided with the left of the 3rd resistor,
The back of circuit board and power supply wire bonding, the circuit board right side are welded with temperature sensor, described to subtract key, function key, add
Key with power line, monolithic mechatronics, the temperature sensor, amplifying circuit, power supply indicator, run indicator, temperature
Mode indicating lamp, power mode indicator lamp, cold junction compensation with monolithic mechatronics, the photoelectrical coupler, nixie display,
Controllable silicon electrically connects with cold junction compensation.
Further, the fixed screw is respectively provided with two.
Further, the inductive head on the temperature sensor is respectively provided with two.
Further, key, function key, the plus key of subtracting is tangible button.
Further, the power line part uses Switching Power Supply, as long as power meets single-chip microcomputer and display portion
Power consumption.
Further, the single-chip microcomputer is using the bs84c14 models for closing Thailand.
Further, the temperature sensor uses K-type thermocouple.
Further, the amplifying circuit uses op07 models.
Further, the cold junction compensation uses lm358 models.
Further, the selection of the controllable silicon determines according to chafing dish electrothermal tube watt level.
A kind of electronic thermostat of the present invention is realized to warm in electric chafing dish by setting single-chip microcomputer, controllable silicon and thermocouple
The collection and control of degree, and add led and show and touch key-press, operation is directly perceived, and pid algorithm incorporates, between realizing laser heating not
It is disconnected, make kettle temperature constant, power mode, can be boiled accurately temperature stabilization control within the scope of design temperature ± 1 DEG C
Fiery cooking pan congee, stewing needs to use small fire, is preset with power mode, and user can adjust watt level to realize traditional sense
On big fire small fire, non-overflow pan, power saving.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of electronic thermostat structural representation of the present invention；
Fig. 2 is a kind of electronic thermostat circuit theory diagrams of the present invention.
In figure：Circuit board -1, fixed screw -2, nixie display -3, power supply indicator -4, run indicator -5, temperature
Mode indicating lamp -6, power mode indicator lamp -7, controllable silicon -8, subtract key -9, function key -10, plus key -11, first resistor -12,
Amplifying circuit -13, second resistance -14, single-chip microcomputer -15, cold junction compensation -16,3rd resistor -17, photoelectrical coupler -18, power supply
Line -19, temperature sensor -20.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Fig. 1, Fig. 2 are referred to, the present invention provides a kind of electronic thermostat, including circuit board 1, fixed screw 2, digital-scroll technique
Device 3, power supply indicator 4, run indicator 5, temperature model indicator lamp 6, power mode indicator lamp 7, controllable silicon 8, subtract key 9, work(
Can key 10, plus key 11, first resistor 12, amplifying circuit 13, second resistance 14, single-chip microcomputer 15, cold junction compensation 16,3rd resistor
17th, photoelectrical coupler 18, power line 19, temperature sensor 20, the front surface left end of circuit board 1 and the bolt connection of fixed screw 2, Gu
Determine the right side of screw 2 and be provided with nixie display 3, and nixie display 3 welds with circuit board 1, and the top of circuit board 1 is provided with electricity
Source indicator lamp 4, the right side of power supply indicator 4 are provided with run indicator 5, and the right side of run indicator 5 is provided with temperature model instruction
Lamp 6, the right side of temperature model indicator lamp 6 are provided with power mode indicator lamp 7, and the right side upper end of nixie display 3 is welded with controllable silicon 8
Connecing, the bottom of nixie display 3, which is provided with, subtracts key 9, subtracts the right side of key 9 and is provided with function key 10, and the right side of function key 10 is provided with plus key 11,
The right side of nixie display 3 is provided with first resistor 12, and the right side of first resistor 12 is provided with amplifying circuit 13, the right side of amplifying circuit 13
Second resistance 14 is provided with, the lower section of amplifying circuit 13 is provided with single-chip microcomputer 15, and the right side of single-chip microcomputer 15 is welded with cold junction compensation 16, cold
The lower right-hand side of end compensating 16 is provided with 3rd resistor 17, and the left side of 3rd resistor 17 is provided with photoelectrical coupler 18, the back side of circuit board 1
Welded with power line 19, the right side of circuit board 1 is welded with temperature sensor 20, subtracts key 9, function key 10, plus key 11 and power line
19th, single-chip microcomputer 15 electrically connects, and temperature sensor 20, amplifying circuit 13, power supply indicator 4, run indicator 5, temperature model refer to
Show that lamp 6, power mode indicator lamp 7, cold junction compensation 16 electrically connect with single-chip microcomputer 15, photoelectrical coupler 18, nixie display 3,
Controllable silicon 8 is electrically connected with cold junction compensation 16, and fixed screw 2 is respectively provided with two, and the inductive head on temperature sensor 20 is respectively provided with
Two, it is tangible button to subtract key 9, function key 10, plus key 11, and the part of power line 19 uses Switching Power Supply, and power is only
Meet single-chip microcomputer and display portion power consumption, single-chip microcomputer 15 uses using safe bs84c14 models, temperature sensor 20 is closed
K-type thermocouple, amplifying circuit 13 use op07 models, and cold junction compensation 16 uses lm358 models, and the selection of controllable silicon 8 is according to fire
Pot electrothermal tube watt level determines.
When user wants to use this patent, first by power line 19 connect power supply and with electric food warmer processor phase
Connection, the part of power line 19 uses Switching Power Supply, as long as power meets single-chip microcomputer and display portion power consumption, then will
Temperature sensor 20 is connected with electric food warmer, then can carry out temperature control to electric food warmer by subtracting key 9, function key 10, plus key 11,
By the way that in the temperature sensor of temperature sensor 20 to single-chip microcomputer 15, amplifier circuit uses op07, in addition with a piece of lm358 cold ends
Compensation.Temperature is calculated through 12 ad conversions in single-chip microcomputer, and the processing of single-chip microcomputer 15 makes instruction for information transfer to indicator lamp
Lamp lights, and indicator lamp includes power supply indicator 4, run indicator 5, temperature model indicator lamp 6, power mode indicator lamp 7, function
Key 10 can adjusting working mode, single-chip microcomputer 15 calculates temperature to nixie display 3 and carries out by being combined with cold junction compensation 16
It has been shown that, output are isolated using photoelectrical coupler 18, and driving controllable silicon 8 controls heating tube, and the selection of controllable silicon is according to chafing dish electric heating
Tube power size determines that it is accurate to have reached control temperature, can be with laser heating, and temperature fluctuation range is small, can control ± 1 DEG C with
It is interior, it is possible to achieve the effect of power output adjustment, it is big to solve temperature control error, and fluctuation is big, influences food production effect and speed,
Temperature is controlled by switch on and off, output power can not be realized, mechanical temperature probe precision is low, reacts the problem of slow.
Circuit board 1 of the present invention, fixed screw 2, nixie display 3, power supply indicator 4, run indicator 5, temperature model
Indicator lamp 6, power mode indicator lamp 7, controllable silicon 8, subtract key 9, function key 10, plus key 11, first resistor 12, amplifying circuit 13,
Second resistance 14, single-chip microcomputer 15, cold junction compensation 16,3rd resistor 17, photoelectrical coupler 18, power line 19, temperature sensor 20
Part is universal standard part, especially subtracts key 9, function key 10, plus key 11 and is electrically connected with power line 19, single-chip microcomputer 15, temperature
Sensor 20, amplifying circuit 13, power supply indicator 4, run indicator 5, temperature model indicator lamp 6, power mode indicator lamp 7,
Cold junction compensation 16 electrically connects with single-chip microcomputer 15, and photoelectrical coupler 18, nixie display 3, controllable silicon 8 are electric with cold junction compensation 16
Connection, it can reach and control temperature accurate, can be with laser heating, temperature fluctuation range is small, can control within ± 1 DEG C, Ke Yishi
Existing power output adjustment, big so as to be effectively prevented from temperature control error, fluctuation is big, food production effect and speed is influenceed, by opening
Break-make control temperature is closed, output power can not be realized, mechanical temperature probe precision is low, reacts the problem of slow.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Which point therefore, no matter from the point of view of, all should incite somebody to action
Embodiment regards exemplary as, and be it is nonrestrictive, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of electronic thermostat includes circuit board（1）, fixed screw（2）, nixie display（3）, power supply indicator（4）, fortune
Row indicator lamp（5）, temperature model indicator lamp（6）, power mode indicator lamp（7）, controllable silicon（8）, subtract key（9）, function key（10）、
Plus key（11）, first resistor（12）, amplifying circuit（13）, second resistance（14）, single-chip microcomputer（15）, cold junction compensation（16）, the 3rd
Resistance（17）, photoelectrical coupler（18）, power line（19）, temperature sensor（20）, the circuit board（1）Front surface left end is with consolidating
Determine screw（2）Bolt connection, the fixed screw（2）Right side is provided with nixie display（3）, and nixie display（3）With
Circuit board（1）Welding, the circuit board（1）Top is provided with power supply indicator（4）, the power supply indicator（4）Right side is set
There is run indicator（5）, the run indicator（5）Right side is provided with temperature model indicator lamp（6）, the temperature model instruction
Lamp（6）Right side is provided with power mode indicator lamp（7）, the nixie display（3）Right side upper end and controllable silicon（8）Welding, institute
State nixie display（3）Bottom, which is provided with, subtracts key（9）, it is described to subtract key（9）Right side is provided with function key（10）, the function key
（10）Right side is provided with plus key（11）, the nixie display（3）Right side is provided with first resistor（12）, the first resistor（12）
Right side is provided with amplifying circuit（13）, the amplifying circuit（13）Right side is provided with second resistance（14）, the amplifying circuit
（13）Lower section is provided with single-chip microcomputer（15）, the single-chip microcomputer（15）Right side and cold junction compensation（16）Welding, the cold junction compensation
（16）Lower right-hand side is provided with 3rd resistor（17）, the 3rd resistor（17）Left side is provided with photoelectrical coupler（18）, it is described
Circuit board（1）The back side and power line（19）Welding, the circuit board（1）Right side and temperature sensor（20）Welding, it is described to subtract key
（9）, function key（10）, plus key（11）And power line（19）, single-chip microcomputer（15）Electrical connection, the temperature sensor（20）, put
Big circuit（13）, power supply indicator（4）, run indicator（5）, temperature model indicator lamp（6）, power mode indicator lamp（7）, it is cold
End compensating（16）And single-chip microcomputer（15）Electrical connection, the photoelectrical coupler（18）, nixie display（3）, controllable silicon（8）With
Cold junction compensation（16）Electrical connection.
A kind of 2. electronic thermostat according to claim 1, it is characterised in that：The fixed screw（2）It is respectively provided with two.
A kind of 3. electronic thermostat according to claim 1, it is characterised in that：The temperature sensor（20）On sensing
Head is respectively provided with two.
A kind of 4. electronic thermostat according to claim 1, it is characterised in that：It is described to subtract key（9）, function key（10）Plus
Key（11）It is tangible button.
A kind of 5. electronic thermostat according to claim 1, it is characterised in that：The power line（19）Part is using switch
Power supply, as long as power meets single-chip microcomputer and display portion power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711073368.0A CN107894796A (en) | 2017-11-04 | 2017-11-04 | A kind of electronic thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711073368.0A CN107894796A (en) | 2017-11-04 | 2017-11-04 | A kind of electronic thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107894796A true CN107894796A (en) | 2018-04-10 |
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ID=61803034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711073368.0A Pending CN107894796A (en) | 2017-11-04 | 2017-11-04 | A kind of electronic thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107894796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301319A (en) * | 2016-08-31 | 2017-01-04 | 浙江朗科智能电气有限公司 | A kind of controller cancelling controllable silicon RC absorption circuit |
-
2017
- 2017-11-04 CN CN201711073368.0A patent/CN107894796A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301319A (en) * | 2016-08-31 | 2017-01-04 | 浙江朗科智能电气有限公司 | A kind of controller cancelling controllable silicon RC absorption circuit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180410 |