CN206657254U - A kind of automatic temperature control system applied to temperature control test environment case - Google Patents
A kind of automatic temperature control system applied to temperature control test environment case Download PDFInfo
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- CN206657254U CN206657254U CN201720481620.0U CN201720481620U CN206657254U CN 206657254 U CN206657254 U CN 206657254U CN 201720481620 U CN201720481620 U CN 201720481620U CN 206657254 U CN206657254 U CN 206657254U
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Abstract
The utility model discloses a kind of automatic temperature control system applied to temperature control test environment case, belong to domain of control temperature, technical problems to be solved for how in real time, it is automatic and the problem of be accurately controlled temperature in temperature control test environment case；Its structure includes logic control element and switch element, and logic control element can export three kinds of logic states：B=0 of A=1 B=0, A=0 B=1, A=0；Switch element includes switch A1, switch A2, switch B1, switch B2, switch A1 and switch A2 signal input part are connected with the first output end of logic control element, and the signal input part for switching B1 and switch B2 is connected with the second output end of logic control element；Switch A1 and switch B2 the second output end be connected with the first input end of electrothermal module, switch A2's and switch B2 the second output end be connected with the second input of electrothermal module.The system can A.T.C.
Description
Technical field
It the utility model is related to domain of control temperature, specifically a kind of temperature applied to temperature control test environment case
Spend automatic control system.
Background technology
In the exploitation and test process of Modern Small electronics technology, the normal operation of equipment, temperature at a temperature of non-normal temperature
Measurement, the normal operating temperature limit, and the influence that non-normal temperature temperature is run to equipment, it is not only the pass of product development and test
Key project, and the advanced subject of miniaturized electronics particular surroundings counter-measure research at present.It is existing to use pyroelectric technology
Temperature control test environment system, the heat absorption of its electrothermal module, heat delivery surface switching are by manually inverting electrothermal module
Complete, such mode of operation adds artificial risk, is unable to reach function that is real-time, automating, be precisely controlled.
Control that is how real-time, automatic and accurately realizing temperature in temperature control test environment case, needs solve
Technical problem.
The content of the invention
Technical assignment of the present utility model is the deficiency for more than, there is provided a kind of applied to temperature control test environment case
Automatic temperature control system, come solve how in real time, it is automatic and be accurately controlled asking for temperature in temperature control test environment case
Topic.
Technical assignment of the present utility model is realized in the following manner：
A kind of automatic temperature control system applied to temperature control test environment case, including dc source, electrothermal module,
Also include controller and DC voltage inversion set, DC voltage inversion set includes logic control element and switch element；Patrol
Collecting control unit includes input and output end, output end totally two, respectively the first output end and the second output end, and first is defeated
Go out end can output signal A, the first output end can output signal B, the input of logic control element is connected with controller, patrols
Three kinds of logic states can be exported by collecting control unit：A=1B=0, A=0B=1, A=0B=0；Switch element include switch A1,
Switch A2, switch B1, switch B2, switch A1 signal input part and switch A2 signal input part with logic control list
Member the first output end connection, switch B1 signal input part and switch B2 signal input part with logic control element
Second output end connects；The first output end for switching A1 and the first output end for switching B1 export with the first of dc source
End connection, the first output end for switching A2 and the first output end for switching B2 are connected with the second output end of dc source,
The second output end for switching A1 and the second output end for switching B2 are connected with the first input end of electrothermal module, switch A2's
Second output end and switch B2 the second output end are connected with the second input of electrothermal module.
Wherein, it is sequentially connected according to Peltier (Peltier) effect, controller, logic control element and switch element, directly
Stream power supply, switch element and electrothermal module are sequentially connected, and the input signal of input logic control unit is adjusted by controller, real
The adjustment of three kinds of logic states of existing logic control element, above-mentioned switch A1, switch A2, switch are controlled by logic control element
B1, switch B2 break-make, so as to change the flow direction of the electrode of direct-current power supply electrothermal module and electric current, when electric current back through
During electrothermal module, heat delivery surface and heat-absorbent surface will invert, and reach the automatic conversion of heat-production functions and refrigerating function.
Further, logic control element includes NAND gate and includes first input end, the second input with door, NAND gate
And output end, include first input end, the second input and output end with door, it is above-mentioned with totally two, door, respectively with door AND1
With with door AND2, connect with door AND1 first input end and with the output end of door AND2 first input end with NAND gate
Connect；The first input end of NAND gate and the first input in parallel with door AND1 the second input and as logic control element
End, the second input of NAND gate and the second input in parallel with door AND2 the second input and as logic control element
End, the first input end of logic control element and the second input of logic control element are connected with controller；With door
First output end of the AND1 output end as logic control element, respectively with switching A1 signal input part and switching A2
Signal input part connection；With the second output end of door AND2 output end as logic control element, respectively with switch B1's
Signal input part and the signal input part connection for switching B2.
Further, the first output end of dc source is positive pole, and the second output end of dc source is negative pole.
A kind of automatic temperature control system applied to temperature control test environment case of the present utility model has following excellent
Point：
1st, the electrode and electricity that the utility model is exported by controller control DC voltage inversion set to dc source
Stream flow direction is inverted, so as to realize the reversion to electrothermal module heat delivery surface and heat-absorbent surface, and then can automatically, in real time to heating
Function and refrigerating function are changed, and reduce manually-operated risk and error, are reduced the time-consuming of operation, can be passed through system
One control module is handled, and facilitates the follow-up functions such as intelligent clustering, is added significantly to the operation speed of total system
Rate, operational risk is reduced, add circuit stability；
2nd, the utility model is controlled by logic control element, and logic circuit can be real in the circuit of any scale
It is existing, environment used is not only restricted to, the stability of logic circuit in itself is higher, reduces the noise in total system.
Brief description of the drawings
The temperature automatic control system applied to temperature control test environment case a kind of to the utility model below in conjunction with the accompanying drawings
System further illustrates.
Accompanying drawing 1 is a kind of circuit theory diagrams of automatic temperature control system applied to temperature control test environment case.
Embodiment
Temperature control test environment case is applied to one kind of the present utility model with reference to Figure of description and specific embodiment
Automatic temperature control system be described in detail below.
Embodiment：
As shown in Figure 1, a kind of automatic temperature control system applied to temperature control test environment case of the utility model,
Including dc source, electrothermal module, in addition to controller and DC voltage inversion set, DC voltage inversion set includes logic
Control unit and switch element；Logic control element includes input and output end, output end totally two, the respectively first output
End and the second output end, the first output end can output signal A, the second output end can output signal B, controller and logic control
The input connection of unit processed, the value for the input signal for inputting the logic control element, the logic control are adjusted by controller
Unit can export three kinds of logic states：A=1B=0, A=0B=1, A=0B=0；Switch element includes switch A1, switch
A2, switch B1, switch B2, the signal input part for switching A1 and switch A2 signal input part with logic control element the
One output end connects, and the signal input part for switching B1 and the signal input part for switching B2 export with the second of logic control element
End connection；The first output end for switching A1 and the first output end for switching B1 are connected with the first output end of dc source,
The first output end for switching A2 and the first output end for switching B2 are connected with the second output end of dc source, switch A1's
Second output end and switch B2 the second output end are connected with the first output end of electrothermal module, and switch A2 second is defeated
The second output end for going out end and switch B2 is connected with the second output end of electrothermal module；Two inputs of logic control element
End connects with control.
Wherein, logic control element include NAND gate G and with door, NAND gate G include first input end, the second input and
Output end, include first input end, the second input and output end with door, it is above-mentioned with totally two, door, respectively with door AND1 and
With door AND2, it is connected with door AND1 first input end and with output end of the door AND2 first input end with NAND gate G；With
NOT gate G first input end and first input end in parallel and as logic control element with door AND1 the second input, with
NOT gate G the second input and the second input in parallel with door AND2 the second input and as logic control element, are patrolled
Second input of the first input end and logic control element of collecting control unit is connected with controller；It is defeated with door AND1
Go out first output end of the end as logic control element, inputted respectively with the signal input part for switching A1 and the signal for switching A2
End connection；With the second output end of door AND2 output end as logic control element, respectively with switching B1 signal input part
And switch B2 signal input part connection.Above-mentioned logic control element is a kind of structure for realizing its logic state, in reality
Can be selected in and meet that it has an A=1B=0 in the prior art, tri- kinds of logic states of A=0B=1, A=0B=0 other
The logic control element of circuit structure.
Signal a and signal b is sent to the logic control element by controller, to the first input end of logic control element
The signal of input is signal a, to logic control element the second input input signal be signal b, by NAND gate G, and
Door AND1 and with door AND2 coordinate, generation two output signals be signal A and signal B, the truth table of the logic circuit is as follows：
| a | b | A | B |
| 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 1 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 0 | 0 |
Logic circuit allows three kinds of stable states：A=1B=0, A=0B=1, A=0B=0.
When the input of above-mentioned logic control element is a=1b=0, the output of logic control element is A=1 B=0, is opened
It is channel status to close A1 and switch A2, and switch B1 and switch B2 are off state, the DC voltage inversion set output electrode with
The sense of current is identical with dc source；
When the input of above-mentioned logic control element is a=0b=1, the output of logic control element is A=0 B=1, is opened
It is off state to close A1 and switch A2, and switch B1 and switch B2 are channel status, the DC voltage inversion set output electrode with
The sense of current is opposite with former dc source；
When the input of above-mentioned logic control element is a=0b=0, the output of logic control element is A=0B=0, switch
A1 and switch A2 is off state, and switch B1 and switch B2 are off state, DC voltage inversion set non-transformer output；
When the input of above-mentioned logic control element is a=1b=1, the output of logic control element is A=0B=0, is opened
It is off state to close A1 and switch A2, and switch B1 and switch B2 are off state, DC voltage inversion set non-transformer output.
To sum up, can be to the output of power electrode in system by adjusting the value of two input signals of signal a and signal b
Sense of current is automatically controlled in position and circuit.
A kind of working method of automatic temperature control system applied to temperature control test environment case of the utility model is：
The signal a and signal b of input logic control unit, as a=1b=0, the DC voltage inversion set are adjusted by controller
Output electrode and the sense of current are identical with former dc source, electrothermal module normal work；Need the heat-production functions of electrothermal module
When being inverted with refrigerating function, signal a and signal b numerical value is adjusted so that a=0b=1, the DC voltage inversion set
Output electrode and the sense of current and former dc source reach heat on the contrary, so as to which heat-absorbent surface in electrothermal module and heat delivery surface will invert
The heat-production functions of electric module and the automatic conversion of refrigerating function.
A kind of automatic temperature control system applied to temperature control test environment case of the present utility model,
By embodiment above, the those skilled in the art can readily realize the utility model.But
It is it should be appreciated that the utility model is not limited to embodiment disclosed above.On the basis of disclosed embodiment,
The those skilled in the art can be combined different technical characteristics, so as to realize different technical schemes.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (3)
1. a kind of automatic temperature control system applied to temperature control test environment case, including dc source, electrothermal module, its
It is characterised by also including controller and DC voltage inversion set, DC voltage inversion set includes logic control element and switch
Unit；
Logic control element includes input and output end, output end totally two, respectively the first output end and the second output end,
First output end can output signal A, the first output end can output signal B, the input and controller of logic control element
Connection, logic control element can export three kinds of logic states：B=0 of A=1 B=0, A=0 B=1, A=0；
Switch element includes switch A1, switch A2, switch B1, switch B2, switchs A1 signal input part and switchs A2 letter
Number input is connected with the first output end of logic control element, and the signal input part for switching B1 and the signal for switching B2 are defeated
Enter end to be connected with the second output end of logic control element；
The first output end for switching A1 and the first output end for switching B1 are connected with the first output end of dc source, are switched
A2 the first output end and switch B2 the first output end are connected with the second output end of dc source, switch the second of A1
Output end and switch B2 the second output end and be connected with the first input end of electrothermal module, switch A2 the second output end with
And switch B2 the second output end is connected with the second input of electrothermal module.
2. a kind of automatic temperature control system applied to temperature control test environment case according to claim 1, it is special
Sign is that logic control element includes NAND gate and includes first input end, the second input and output end with door, NAND gate, with
Door includes first input end, the second input and output end, above-mentioned and totally two, door, respectively with door AND1 and with door AND2,
It is connected with door AND1 first input end and with door AND2 first input end with the output end of NAND gate；
The first input end of NAND gate and the first input in parallel with door AND1 the second input and as logic control element
End, the second input of NAND gate and the second input in parallel with door AND2 the second input and as logic control element
End, the first input end of logic control element and the second input of logic control element are connected with controller；
With the first output end of door AND1 output end as logic control element, respectively with switch A1 signal input part and
Switch A2 signal input part connection；
With the second output end of door AND2 output end as logic control element, respectively with switch B1 signal input part and
Switch B2 signal input part connection.
3. a kind of automatic temperature control system applied to temperature control test environment case according to claim 1 or 2, its
The first output end for being characterised by dc source is positive pole, and the second output end of dc source is negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720481620.0U CN206657254U (en) | 2017-05-03 | 2017-05-03 | A kind of automatic temperature control system applied to temperature control test environment case |
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| CN201720481620.0U CN206657254U (en) | 2017-05-03 | 2017-05-03 | A kind of automatic temperature control system applied to temperature control test environment case |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108628358A (en) * | 2018-04-23 | 2018-10-09 | 中国科学院理化技术研究所 | A kind of constant temperature system |
| CN110908419A (en) * | 2019-11-04 | 2020-03-24 | 北京航空航天大学 | Thermoelectric refrigeration and moisture permeable film combined temperature and humidity control system |
-
2017
- 2017-05-03 CN CN201720481620.0U patent/CN206657254U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108628358A (en) * | 2018-04-23 | 2018-10-09 | 中国科学院理化技术研究所 | A kind of constant temperature system |
| CN110908419A (en) * | 2019-11-04 | 2020-03-24 | 北京航空航天大学 | Thermoelectric refrigeration and moisture permeable film combined temperature and humidity control system |
| CN110908419B (en) * | 2019-11-04 | 2022-03-04 | 北京航空航天大学 | Thermoelectric refrigeration and moisture permeable film combined temperature and humidity control system |
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Effective date of registration: 20211028 Address after: 250100 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd. Address before: 250100 First Floor of R&D Building 2877 Kehang Road, Sun Village Town, Jinan High-tech Zone, Shandong Province Patentee before: JINAN INSPUR HIGH-TECH TECHNOLOGY DEVELOPMENT Co.,Ltd. |