CN207424558U - A kind of control device of circulating air oven - Google Patents
A kind of control device of circulating air oven Download PDFInfo
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- CN207424558U CN207424558U CN201721519933.7U CN201721519933U CN207424558U CN 207424558 U CN207424558 U CN 207424558U CN 201721519933 U CN201721519933 U CN 201721519933U CN 207424558 U CN207424558 U CN 207424558U
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Abstract
The utility model belongs to control device field, more particularly to a kind of control device of circulating air oven, including signal pick-up unit, central processing unit, display unit, input unit, execution unit, the signal pick-up unit includes temperature controller, transfer resistance, the central processing unit includes central processing unit, PID adjustment modules, the execution unit includes Xun Huan pump control module and ratio valve module, it is inaccurate that the utility model solves control, performance instability problem, it is strong with driving force, strong antijamming capability, stablize, energy saving advantageous effects.
Description
Technical field
The utility model belongs to control device field more particularly to a kind of control device of circulating air oven.
Background technology
Gas hot-air cycles oven also known as heated-air circulation oven, has chemically gas and food processing to wait to dry for toasting
Roasting, interior thermal cycle, baking object is heated evenly, and thermal energy can be directly translated into when its heating object absorbs, fast so as to obtain
Fast drying effect, the control device of circulating air oven is the important component of heated-air circulation oven, and existing controller controls not
Accurately, performance is unstable.
The content of the invention
The utility model provides a kind of control device of circulating air oven, existing in above-mentioned background technology to solve
Control is inaccurate, performance instability problem.
The technical issues of the utility model solves is realized using following technical scheme：A kind of cycling hot of the utility model
The control device of wind oven, including signal pick-up unit, central processing unit, display unit, input unit, execution unit,
The signal pick-up unit includes temperature controller, transfer resistance, and the central processing unit includes central processing unit, PID adjusts mould
Block, the execution unit include Xun Huan pump control module and ratio valve module, and the signal pick-up unit is used to turn Temperature Quantity
Current signal is changed to, then the current signal is converted into voltage signal, after the central processing unit is for reading conditioning
Voltage signal, output is to execution unit after the processing of PID adjustment modules, and it is defeated that the voltage signal of acquisition is converted to temperature value
For display unit, the input unit is used for keyboard to set up parameter, and the execution unit is used to cycle pump module speed governing, ratio
Valve module controls, and the output terminal of the signal pick-up unit is connected to the signal input part of central processing unit, the centre
The execution output terminal of reason unit is connected to the input terminal of execution unit, and the display output terminal of the central processing unit is connected to aobvious
Show the input terminal of unit, the output terminal of the input unit is connected to the input terminal of central processing unit, the electricity of the temperature controller
Stream output terminal is connected to the input terminal of transfer resistance, and the output terminal of the transfer resistance is connected to the ground terminal of temperature controller and connects
Ground, the current output terminal of the temperature controller are connected to the signal input part of central processing unit, the central processing unit internal PID tune
Device is saved, the Xun Huan pump output terminal of the PID adjustment modules is connected to the input terminal of Xun Huan pump control module, and the PID adjusts mould
The proportioning valve output terminal of block is connected to proportioning valve module input.
Further, 4~20mA of the current signal range.
Further, 0~5V of the voltage signal range.
Further, 100 Ω of transfer resistance resistance value.
Further, transfer resistance built in the temperature controller.
Further, the central processing unit is AVRmega128.
The beneficial effects of the utility model are：
Temperature Quantity is converted to current signal by 1 this patent due to being used for using signal pick-up unit signal pick-up unit, then
The current signal is converted to the technological means of voltage signal, makes its strong antijamming capability during picking up signal, has
Improve the advantageous effects of system stability.
2 this patents, for reading the voltage signal after conditioning, are handled using the central processing unit through PID adjustment modules
It is exported afterwards to the technological means of execution unit, is controlled by ratio, integration, differentiation element so that controller control stablizes, is accurate
Really, quickly.
3 this patents due to including signal pick-up unit, central processing unit, display unit, input unit, execution unit,
The signal pick-up unit includes temperature controller, transfer resistance, and the central processing unit includes central processing unit, PID adjusts mould
Block, the execution unit include Xun Huan pump control module and ratio valve module, and the signal pick-up unit is used to turn Temperature Quantity
Current signal is changed to, then the current signal is converted into voltage signal, after the central processing unit is for reading conditioning
Voltage signal, output is to execution unit after the processing of PID adjustment modules, and it is defeated that the voltage signal of acquisition is converted to temperature value
For display unit, the input unit is used for keyboard to set up parameter, and the execution unit is used to cycle pump module speed governing, ratio
Valve module controls, and the output terminal of the signal pick-up unit is connected to the signal input part of central processing unit, the centre
The execution output terminal of reason unit is connected to the input terminal of execution unit, and the display output terminal of the central processing unit is connected to aobvious
Show the input terminal of unit, the output terminal of the input unit is connected to the input terminal of central processing unit, the electricity of the temperature controller
Stream output terminal is connected to the input terminal of transfer resistance, and the output terminal of the transfer resistance is connected to the ground terminal of temperature controller and connects
Ground, the current output terminal of the temperature controller are connected to the signal input part of central processing unit, the central processing unit internal PID tune
Device is saved, the Xun Huan pump output terminal of the PID adjustment modules is connected to the input terminal of Xun Huan pump control module, and the PID adjusts mould
The proportioning valve output terminal of block is connected to proportioning valve module input, strong by this circuital current driving force, strong antijamming capability,
So that system is more stable.
The 3rd pin of the connector [P2] is connected to the input terminal of biasing resistor [R3], biased electrical described in 4 this patents
The negative input end of the output terminal connection amplifier [U2A] of [R3] is hindered, and is connected to resistance [R4], the input terminal of capacitance [R3], it is described
First pin of connector [P2] is connected and is grounded with the positive input terminal of amplifier [U2A], the resistance [R4], capacitance [R3] it is defeated
Outlet is connected and is connected to the output terminal of amplifier [U2A], and the output terminal of the amplifier [U2A] connects the defeated of biasing resistor [R5]
Enter end, the output terminal of the biasing resistor [R5] is connected to the positive input terminal of amplifier [U2B], the negative input of the amplifier [U2B]
This technological means that is connected with output terminal is held, since follower has the function of power amplification so that picking up signal is more accurate.
4~20mA of current signal range described in 5 this patents has advantageous effects applied widely.
6 this patents are beautiful, practical, stable, the advantageous effects for having assembling easy.
Description of the drawings
Fig. 1 is the electrical schematic diagram of the utility model.
Specific embodiment
The utility model is described further below in conjunction with attached drawing：
In figure：1- signal pick-up units, 2- central processing unit, 3- display units, 4- input units, 5- execution units,
6- temperature controllers, 7- transfer resistances, 8- central processing units, 9-PID adjustment modules, 10- Xun Huan pump control modules, 11- proportioning valve moulds
Block, 12- central processing unit signal input parts, 13-PID adjustment modules Xun Huan pump output terminal, 14-PID adjustment module proportioning valves are defeated
Outlet.
Embodiment：
The present embodiment includes：As shown in Figure 1, a kind of control device of circulating air oven of the utility model, including letter
Number pickup unit 1, central processing unit 2, display unit 3, input unit 4, execution unit 5, the signal pick-up unit 1 include
Temperature controller 6, transfer resistance 7, the central processing unit 2 include central processing unit 8, PID adjustment modules 9, the execution unit 5
Including Xun Huan pump control module 10 and ratio valve module 11, the signal pick-up unit 1 is used to Temperature Quantity being converted to electric current letter
Number, then the current signal is converted into voltage signal, the central processing unit 2 is used to read the voltage signal after conditioning,
Through PID adjustment modules 9 processing after output to execution unit 5, and by the voltage signal of acquisition be converted to temperature value be output in it is aobvious
Show unit 3, the input unit 4 is used for keyboard to set up parameter, and the execution unit 5 is used to cycle pump module speed governing, proportioning valve
Module 11 controls, and the output terminal of the signal pick-up unit 1 is connected to the signal input part of central processing unit 2, the center
The execution output terminal of processing unit 2 is connected to the input terminal of execution unit 5, and the display output terminal of the central processing unit 2 connects
The input terminal of display unit 3 is connected to, the output terminal of the input unit 4 is connected to the input terminal of central processing unit 2, the temperature
The current output terminal of control instrument 6 is connected to the input terminal of transfer resistance 7, and the output terminal of the transfer resistance 7 is connected to temperature controller 6
Ground terminal is simultaneously grounded, and the current output terminal of the temperature controller 6 is connected to the signal input part 12 of central processing unit 8, the center
8 internal PID adjuster of processor, the Xun Huan pump output terminal 13 of the PID adjustment modules 9 are connected to Xun Huan pump control module 10
Input terminal, the proportioning valve output terminal of the PID adjustment modules 9 are connected to 11 input terminal 14 of ratio valve module.
4~20mA of the current signal range.
0~5V of the voltage signal range.
100 Ω of transfer resistance resistance value.
Transfer resistance built in the temperature controller.
The central processing unit is AVRmega128.
Operation principle：This patent is converted to voltage signal by temperature controller by current signal, then by current signal, then passes through
After central processing unit processing, after PID regulator is adjusted, output is described to Xun Huan pump control module and proportional valve control module
Keyboard unit is used for the modification of parameter, says on the whole, and the utility model solves control inaccuracy, performance instability problem,
With driving force is strong, strong antijamming capability, stabilization, energy saving advantageous effects.
Using the technical solution of the utility model or those skilled in the art technical solutions of the utility model inspiration
Under, similar technical solution is designed, and reach above-mentioned technique effect, it is to fall into the scope of protection of the utility model.
Claims (6)
1. a kind of control device of circulating air oven, which is characterized in that including signal pick-up unit, central processing unit,
Display unit, input unit, execution unit, the signal pick-up unit include temperature controller, transfer resistance, the central processing list
Member includes central processing unit, PID adjustment modules, and the execution unit includes Xun Huan pump control module and ratio valve module, described
Signal pick-up unit is used to Temperature Quantity being converted to current signal, then the current signal is converted to voltage signal, in described
Central Processing Unit is exported after the processing of PID adjustment modules to execution unit for reading the voltage signal after conditioning, and will acquisition
Voltage signal be converted to temperature value and be output in display unit, the input unit is used for keyboard to set up parameter, the execution
For unit for cycling pump module speed governing, the control of ratio valve module, the output terminal of the signal pick-up unit is connected to central processing
The signal input part of unit, the execution output terminal of the central processing unit are connected to the input terminal of execution unit, the center
The display output terminal of processing unit is connected to the input terminal of display unit, and the output terminal of the input unit is connected to central processing
The input terminal of unit, the current output terminal of the temperature controller are connected to the input terminal of transfer resistance, the output of the transfer resistance
End is connected to ground terminal and the ground connection of temperature controller, and the current output terminal of the temperature controller is connected to the signal input of central processing unit
End, the central processing unit internal PID adjuster, the cycling pump output terminal of the PID adjustment modules are connected to circulating pump control
The input terminal of module, the proportioning valve output terminal of the PID adjustment modules are connected to proportioning valve module input.
A kind of 2. control device of circulating air oven according to claim 1, which is characterized in that the current signal
4~20mA of range.
A kind of 3. control device of circulating air oven according to claim 1, which is characterized in that the voltage signal
0~5V of range.
A kind of 4. control device of circulating air oven according to claim 1, which is characterized in that the transfer resistance
100 Ω of resistance value.
5. the control device of a kind of circulating air oven according to claim 1, which is characterized in that in the temperature controller
Put transfer resistance.
6. a kind of control device of circulating air oven according to claim 1, it is characterised in that：The central processing
Device is AVRmega128.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721519933.7U CN207424558U (en) | 2017-11-13 | 2017-11-13 | A kind of control device of circulating air oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721519933.7U CN207424558U (en) | 2017-11-13 | 2017-11-13 | A kind of control device of circulating air oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424558U true CN207424558U (en) | 2018-05-29 |
Family
ID=62304655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721519933.7U Expired - Fee Related CN207424558U (en) | 2017-11-13 | 2017-11-13 | A kind of control device of circulating air oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424558U (en) |
-
2017
- 2017-11-13 CN CN201721519933.7U patent/CN207424558U/en not_active Expired - Fee Related
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| 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: 20180529 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |