CN106647863A - Temperature control system for oven - Google Patents
Temperature control system for oven Download PDFInfo
- Publication number
- CN106647863A CN106647863A CN201710097076.4A CN201710097076A CN106647863A CN 106647863 A CN106647863 A CN 106647863A CN 201710097076 A CN201710097076 A CN 201710097076A CN 106647863 A CN106647863 A CN 106647863A
- Authority
- CN
- China
- Prior art keywords
- control system
- temperature control
- baking box
- unit
- control unit
- 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.)
- Pending
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Classifications
-
- 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
Abstract
The present invention provides a temperature control system for an oven. The system comprises a control unit, and the control unit is connected with a temperature detection unit, a man-machine conversation unit and a temperature control unit; the temperature detection unit comprises a sampling circuit which is connected with an amplifier, the amplifier is connected with the control unit through an analog-digital converter, the control unit is connected with an optocoupler and a relay connected with the optocoupler, the relay is connected with a heater strip, and the control unit is accessed into an input power supply through a voltage regulation circuit. The temperature control system for the oven can perform difference regulation according to the temperature in the oven so as to ensure that the temperature in the oven is located at a target range and improve the control effect.
Description
Technical field
The invention belongs to household electrical appliance technical field, more particularly to a kind of baking box temperature control system.
Background technology
Temperature control technology is widely used in the every field of social life, such as household electrical appliances, automobile, material, power electronics,
Relay temperature adjustment is most commonly that in traditional temperature control technology, but due to the actuating of relay frequently, temperature controlling range is little,
Precision is not high, and normal work may be affected because contact is bad.Recent years it is fast-developing have PID temperature controls, fuzzy control,
The application of neutral net and genetic algorithm in temperature control.Baking box is firing equipment most widely used in heat treatment production,
Its electric current produces heat by heating, by radiation and the transfer mode of convection current, transfers heat to the thing to be heated
Product so as to be heated to required temperature.But, in the equipment such as current baking box, when being controlled using relay, it is difficult to
Adjusted accordingly according to the real time temperature in baking box, the temperature control effect in baking box is general.
Therefore, need a kind of baking box temperature control system badly now, different tune can be carried out according to the temperature in baking box
It is whole, it is ensured that the temperature in baking box lifts control effect in target zone.
The content of the invention
The present invention proposes a kind of baking box temperature control system, in solving the equipment such as baking box current in prior art,
Temperature control effect when being controlled using relay, it is difficult to adjusted accordingly according to the real time temperature in baking box, in baking box
Really general problem.
The technical scheme is that what is be achieved in that：Baking box temperature control system, including control unit, the control
Unit is connected to temperature detecting unit, human-computer dialogue unit and temperature control unit, and the temperature detecting unit includes
Sample circuit, the sample circuit is connected with amplifier, and the amplifier connects described control unit, institute by analog-digital converter
Control unit connection optocoupler and the relay being connected with the optocoupler are stated, the relay is connected with heater strip, the control
Unit accesses input power by regulating circuit.
As one kind preferred embodiment, the sampling frequency of the sample circuit is fs, is input into the highest of analog signal
The frequency of frequency component is fimax, and both sides relation meets fimaxs of the fs more than or equal to 2 times.
As one kind preferred embodiment, the output of the sample circuit that the analog-digital converter is transmitted according to transmitter
Value, output is expressed as the integral multiple of minimum number unit, and continuous analog quantity is transformed into discrete digital quantity, and will quantify
The binary code representation of result afterwards is out.
As one kind preferred embodiment, the human-computer dialogue unit includes temperature display module, keyboard and sound
Alarm unit.
Preferred embodiment the alarm unit includes sound and light alarm module as a kind of, be less than when measured temperature or
Person is upper and lower higher than established temperature in limited time, starts sound and light alarm.
As one kind preferred embodiment, the human-computer dialogue unit also includes temperature setting module.
As one kind preferred embodiment, the output end output voltage of regulating circuit meets formula：
Wherein, Ui is the voltage of input power.
As one kind preferred embodiment, the analog-digital converter includes MAX1241.
As one kind preferred embodiment, the sampling unit includes thermal resistance sensor.
After employing above-mentioned technical proposal, the invention has the beneficial effects as follows：
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure, 1-；2-；3-；4-；5-；6-；7-；8-；9-；10-；11-；12-；13-.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, baking box temperature control system, including control unit, described control unit is connected to temperature
Detector unit, human-computer dialogue unit and temperature control unit, the temperature detecting unit includes sample circuit, the sampling electricity
Road is connected with amplifier, and the amplifier connects described control unit, described control unit connection optocoupler by analog-digital converter
And the relay being connected with the optocoupler, the relay is connected with heater strip, and described control unit is connect by regulating circuit
Enter input power.
The sampling frequency of sample circuit is fs, and the frequency for being input into the highest frequency component of analog signal is fimax, Liang Zheguan
System meets fimaxs of the fs more than or equal to 2 times.
The output valve of the sample circuit that the analog-digital converter is transmitted according to transmitter, output is expressed as minimum number unit
Integral multiple, continuous analog quantity is transformed into discrete digital quantity, and the result after quantization is gone out with binary code representation
Come.
The human-computer dialogue unit includes temperature display module, keyboard and audible alarm unit.
The alarm unit includes sound and light alarm module, prescribes a time limit when measured temperature is upper and lower below or above established temperature,
Start sound and light alarm.
The human-computer dialogue unit also includes temperature setting module.
The output end output voltage of regulating circuit meets formula：
Wherein, Ui is the voltage of input power.
The analog-digital converter includes MAX1241.The sampling unit includes thermal resistance sensor.
The operation principle of the baking box temperature control system is：Baking box temperature control system of the present invention utilizes sample circuit
It is sampled, sample circuit is connected with amplifier, amplifier connects described control unit by analog-digital converter, and by mould
The output valve of the sample circuit that number converter is transmitted according to transmitter, output is expressed as the integral multiple of minimum number unit, by even
Continuous analog quantity transforms into discrete digital quantity, and by the result after quantization with binary code representation out；Measured temperature is low
In or it is upper and lower higher than established temperature in limited time, start sound and light alarm；The sampling frequency of sample circuit is fs, is input into analog signal
The frequency of highest frequency component be fimax, both sides relation meets fs more than or equal to 2 times of fimax, is additionally provided with human-computer dialogue
Unit, realizes human-computer dialogue, facilitates implementation temperature controlled human-computer dialogue operation.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of baking box temperature control system, it is characterised in that including control unit, described control unit is connected to temperature
Degree detector unit, human-computer dialogue unit and temperature control unit, the temperature detecting unit includes sample circuit, the sampling
Circuit is connected with amplifier, and the amplifier connects described control unit, described control unit connection light by analog-digital converter
Coupling and the relay being connected with the optocoupler, the relay is connected with heater strip, and described control unit passes through regulating circuit
Access input power.
2. baking box temperature control system according to claim 1, it is characterised in that the sampling frequency of the sample circuit
For fs, the frequency for being input into the highest frequency component of analog signal is fimax, and both sides relation meets fs and is more than or equal to 2 times
fimax。
3. baking box temperature control system according to claim 2, it is characterised in that the analog-digital converter is according to pick-up
The output valve of the sample circuit of device transmission, output is expressed as the integral multiple of minimum number unit, continuous analog quantity is changed into
For discrete digital quantity, and by the result after quantization with binary code representation out.
4. baking box temperature control system according to claim 3, it is characterised in that the human-computer dialogue unit includes temperature
Degree display module, keyboard and audible alarm unit.
5. baking box temperature control system according to claim 4, it is characterised in that the alarm unit includes acousto-optic report
Alert module, when measured temperature is upper and lower below or above established temperature in limited time, starts sound and light alarm.
6. baking box temperature control system according to claim 5, it is characterised in that the human-computer dialogue unit also includes
Temperature setting module.
7. baking box temperature control system according to claim 6, it is characterised in that the output end output electricity of regulating circuit
Pressure meets formula：
Wherein, Ui is the voltage of input power.
8. baking box temperature control system according to claim 7, it is characterised in that the analog-digital converter includes
MAX1241。
9. baking box temperature control system according to claim 8, it is characterised in that the sampling unit includes thermal resistance
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097076.4A CN106647863A (en) | 2017-02-22 | 2017-02-22 | Temperature control system for oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097076.4A CN106647863A (en) | 2017-02-22 | 2017-02-22 | Temperature control system for oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106647863A true CN106647863A (en) | 2017-05-10 |
Family
ID=58845964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710097076.4A Pending CN106647863A (en) | 2017-02-22 | 2017-02-22 | Temperature control system for oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106647863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702551A (en) * | 2017-09-30 | 2018-02-16 | 西华大学 | A kind of computer control system of heating furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6412495A (en) * | 1987-07-06 | 1989-01-17 | Matsushita Electric Ind Co Ltd | Heating device |
| CN201600579U (en) * | 2009-07-02 | 2010-10-06 | 成都信息工程学院 | Furniture baking oven intelligent monitoring system |
| CN102982721A (en) * | 2012-12-13 | 2013-03-20 | 重庆大学 | Experiment teaching device capable of controlling temperature feedback of oven automatically |
| CN204682352U (en) * | 2015-03-27 | 2015-10-07 | 北京三元梅园食品有限公司 | A kind of baking box |
| GB2525439A (en) * | 2014-04-25 | 2015-10-28 | Tom Chandley Ltd | Monitor |
-
2017
- 2017-02-22 CN CN201710097076.4A patent/CN106647863A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6412495A (en) * | 1987-07-06 | 1989-01-17 | Matsushita Electric Ind Co Ltd | Heating device |
| CN201600579U (en) * | 2009-07-02 | 2010-10-06 | 成都信息工程学院 | Furniture baking oven intelligent monitoring system |
| CN102982721A (en) * | 2012-12-13 | 2013-03-20 | 重庆大学 | Experiment teaching device capable of controlling temperature feedback of oven automatically |
| GB2525439A (en) * | 2014-04-25 | 2015-10-28 | Tom Chandley Ltd | Monitor |
| CN204682352U (en) * | 2015-03-27 | 2015-10-07 | 北京三元梅园食品有限公司 | A kind of baking box |
Non-Patent Citations (1)
| Title |
|---|
| 肖明耀 等: "《单片机应用技能实训》", 31 January 2016, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702551A (en) * | 2017-09-30 | 2018-02-16 | 西华大学 | A kind of computer control system of heating furnace |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |