CN103135625A - Temperature control system of aging cabinet of electronic product - Google Patents
Temperature control system of aging cabinet of electronic product Download PDFInfo
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- CN103135625A CN103135625A CN 201110376035 CN201110376035A CN103135625A CN 103135625 A CN103135625 A CN 103135625A CN 201110376035 CN201110376035 CN 201110376035 CN 201110376035 A CN201110376035 A CN 201110376035A CN 103135625 A CN103135625 A CN 103135625A
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- chip microcomputer
- temperature
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- voltage
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Abstract
Disclosed is a temperature control system of an aging cabinet of an electronic product. The temperature control system comprises a single chip microcomputer, a temperature input device is connected with the single chip microcomputer sequentially through a temperature to current transducer, a current to voltage transducer, an amplifier and an analog/digital (A/D) converter, the single chip microcomputer is connected with a heater sequentially through a (D/A) converter, a voltage to frequency converter and a silicon controlled driver, a temperature sensor acquires current temperature, the current temperature acquired by the temperature sensor is converted into a corresponding current value and outputs the current value to the temperature to current transducer, a current signal transmitted from the temperature transducer is converted into a voltage signal by the current to voltage transducer, the amplification effect on the voltage signal can be achieved by the amplifier, the amplified voltage signal is converted by the A/D converter to obtain data, the data are transmitted to the signal chip microcomputer, the signal chip microcomputer receives and processes the data, the D/A converter receives signal chip microcomputer digital quantity, converts the digital quantity to an analog voltage quantity and outputs the analog voltage quantity, the analog voltage quantity is converted into an impulse frequency signal through the voltage to frequency converter and the silicon controlled driver so as to drive a silicon controlled rectifier to finish zero-crossing trigger power adjusting, and thereby temperature control is achieved.
Description
Technical field
The present invention relates to electronic product aging cabinet field, particularly a kind of temperature control system of electronic product aging cabinet.
Background technology
The high low temperature aging test of electronic product is to get rid of electronic product initial failure, controls the necessary means of product quality.The important technology index that the even property of temperature distributing disproportionation is burn-in chamber in burn-in chamber is placed on direct impact the aging result of electronic product in different burn-in chambers zones.At present, the aging room of electronic product of domestic a lot of enterprises, the scope that its temperature control system detects is only certain some temperature in burn-in chamber, thereby be difficult to solve the even practical problems of temperature distributing disproportionation in burn-in chamber, thereby greatly affected the experimental result of the high low temperature aging test of electronic product.
Summary of the invention
For the problem that prior art exists, the purpose of this invention is to provide a kind of temperature control system of electronic product aging cabinet, simple in structure, laying facilitates and uses simple to operate.
In order to achieve the above object, the technical solution used in the present invention is:
a kind of temperature control system of electronic product aging cabinet, comprise single-chip microcomputer 1, temperature input 10 is successively by temperature current transmitter 9, current/voltage transmitter 8, analog switch 7, prime amplifier 6, intergrade amplifier 5, zeroing output amplifier 4, A/D converter 3, the input that the second photoelectric coupling 22 is connected with single-chip microcomputer connects, another input that the first output of single-chip microcomputer 1 is connected with A/D converter by the first photoelectric coupling 2 connects, another input of another output of A/D converter 3 and the output amplifier 4 that is connected connects, connection is connected in the second output of single-chip microcomputer 1 with display keyboard, the 3rd output of single-chip microcomputer 1 is successively by the 3rd photoelectric coupling 17, D/A converter 18, Voltage-to-frequency Converter 19, scr triggering device 20 is connected connection with primary heater, single-chip microcomputer 1 the 4th output by relay 12 respectively with fan 13, refrigeration machine 14, secondary heater 15 connects, code translator 16 respectively with relay 12, the 3rd photoelectric coupling 17 connects.
The present invention is reasonable in design, simple in structure and the circuit part line is simple.
Description of drawings
Accompanying drawing is schematic diagram of the present invention
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
with reference to accompanying drawing, a kind of temperature control system of electronic product aging cabinet, comprise single-chip microcomputer 1, temperature input 10 is successively by temperature current transmitter 9, current/voltage transmitter 8, analog switch 7, prime amplifier 6, intergrade amplifier 5, zeroing output amplifier 4, A/D converter 3, the input that the second photoelectric coupling 22 is connected with single-chip microcomputer connects, another input that the first output of single-chip microcomputer 1 is connected with A/D converter by the first photoelectric coupling 2 connects, another input of another output of A/D converter 3 and the output amplifier 4 that is connected connects, connection is connected in the second output of single-chip microcomputer 1 with display keyboard, the 3rd output of single-chip microcomputer 1 is successively by the 3rd photoelectric coupling 17, D/A converter 18, Voltage-to-frequency Converter 19, scr triggering device 20 is connected connection with primary heater, single-chip microcomputer 1 the 4th output by relay 12 respectively with fan 13, refrigeration machine 14, secondary heater 15 connects, code translator 16 respectively with relay 12, the 3rd photoelectric coupling 17 connects.
Principle of work of the present invention is:
Temperature sensor gathers Current Temperatures, by temperature sensor being converted to the temperature current transmitter 9 of corresponding current value output, current-to-voltage converter 8 is transformed to voltage signal with the current signal that converter temperature transmits, analog switch 7 is realized the timesharing input of multi-channel analog voltage signal, amplifiers at different levels mainly play when large effect, through sending data to single-chip microcomputer 1 after the A/D conversion, single-chip microcomputer 1 carries out deviate calculating and PID adjusting computing after receiving data; D/A converter 18 is accepted the digital quantity of Single Chip Microcomputer (SCM) system and is converted to analog voltage amount output, the simulating signal that Voltage-to-frequency Converter 19 and scr triggering device 20 are exported D/A converter is converted into pulse duration frequency signal driving controllable silicon and completes the zero cross fired Power Regulation, thereby realizes temperature control.
Claims (1)
1. the temperature control system of an electronic product aging cabinet, comprise single-chip microcomputer (1), it is characterized in that: temperature input (10) is successively by temperature current transmitter (9), current/voltage transmitter (8), analog switch (7), prime amplifier (6), intergrade amplifier (5), zeroing output amplifier (4), A/D converter (3), the second photoelectric coupling (22) is connected 1 with single-chip microcomputer) input connect, the first output of single-chip microcomputer (1) is connected 3 with A/D converter by the first photoelectric coupling (2)) another input connection, another input of another output of A/D converter (3) and the output amplifier that is connected (4) connects, the second output of single-chip microcomputer (1) is connected 11 with display keyboard) connect, the 3rd output of single-chip microcomputer (1) is successively by the 3rd photoelectric coupling (17), D/A converter (18), Voltage-to-frequency Converter (19), scr triggering device (20) is connected 21 with primary heater) connect, the 4th output of single-chip microcomputer (1) is passed through relay (12) respectively and fan (13), refrigeration machine (14), secondary heater (15) connects, and code translator (16) respectively and relay (12), the 3rd photoelectric coupling (17) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110376035 CN103135625A (en) | 2011-11-23 | 2011-11-23 | Temperature control system of aging cabinet of electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110376035 CN103135625A (en) | 2011-11-23 | 2011-11-23 | Temperature control system of aging cabinet of electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103135625A true CN103135625A (en) | 2013-06-05 |
Family
ID=48495594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110376035 Pending CN103135625A (en) | 2011-11-23 | 2011-11-23 | Temperature control system of aging cabinet of electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103135625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472165A (en) * | 2015-12-31 | 2016-04-06 | 宇龙计算机通信科技(深圳)有限公司 | Control method and control device of mobile terminal |
| CN107702551A (en) * | 2017-09-30 | 2018-02-16 | 西华大学 | A kind of computer control system of heating furnace |
| CN113176796A (en) * | 2021-05-11 | 2021-07-27 | 湘潭大学 | Temperature-control heating type welding rod heat-preserving barrel and control method |
-
2011
- 2011-11-23 CN CN 201110376035 patent/CN103135625A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472165A (en) * | 2015-12-31 | 2016-04-06 | 宇龙计算机通信科技(深圳)有限公司 | Control method and control device of mobile terminal |
| CN105472165B (en) * | 2015-12-31 | 2019-08-16 | 宇龙计算机通信科技(深圳)有限公司 | The control method and control device of mobile terminal |
| CN107702551A (en) * | 2017-09-30 | 2018-02-16 | 西华大学 | A kind of computer control system of heating furnace |
| CN113176796A (en) * | 2021-05-11 | 2021-07-27 | 湘潭大学 | Temperature-control heating type welding rod heat-preserving barrel and control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |