Power supply test system

Abstract

A power supply test system includes a test chamber, a switch module, a temperature detecting unit, a control module, and a refrigerating and heating module. The test chamber accommodates a power supply. The switch module inputs a predetermined temperature value. The temperature detecting unit detects temperature signals in the test chamber. The control module receives the temperature signals. The refrigerating and heating module receives a first control signal from the control unit when a value of the temperature signal is less than the predetermined temperature value. The refrigerating and heating module heats the test chamber. The refrigerating and heating module receives a second control signal from the control unit when a value of the temperature signal is greater than the predetermined temperature value. The refrigerating and heating module refrigerates the test chamber until the value of the temperature signal is equal to the predetermined temperature value.

What is claimed is: 
     
         1 . A power supply test system for testing reliability of a power supply, the power supply test system comprising:
 a test chamber configured to accommodate the power supply;   a switch module adapted to input a predetermined temperature value;   a temperature detecting unit adapted to detect a temperature signal in the test chamber;   a control module adapted to receive the temperature signal; and   a refrigerating and heating module,   wherein the control module sends a first control signal to the refrigerating and heating module when a value of the temperature signal is less than the predetermined temperature value, the refrigerating and heating module is adapted to heat the test chamber upon receiving the first control signal; the control module sends a second control signal to the refrigerating and heating module when a value of the temperature signal is greater than the predetermined temperature value, the refrigerating and heating module is adapted to refrigerate the test chamber upon receiving the second control signal until the value of the temperature signal is equal to the predetermined temperature value.   
     
     
         2 . The power supply test system of  claim 1 , wherein the control module comprises a micro controller comprising at least one first control signal output terminal; the refrigerating and heating module comprises at least one first relay control unit and a refrigerating and heating unit; the first relay control unit comprises a first winding unit, a first switch unit, and a second switch unit; a first terminal of the first winding unit is electrically connected to the first control signal output terminal to receive the first control signal; a second terminal of the first winding unit receives a first DC voltage; a first terminal of the first switch unit is electrically connected to an anode of a second DC voltage; a first terminal of the second switch unit is electrically connected to a cathode of the second DC voltage; and second terminals of the first switch unit and the second switch unit are electrically connected to the refrigerating and heating units. 
     
     
         3 . The power supply test system of  claim 2 , wherein the micro controller further comprises at least one second control signal output terminal; the first relay control unit further comprises a second winding unit, a third switch unit, and a fourth switch unit; a first terminal of the second winding unit is electrically connected to the second control signal output terminals to receive the second control signal; a second terminal of the second winding unit receives the first DC voltage; a first terminal of the third switch unit is electrically connected to the cathode of the second DC voltage; a first terminal of the fourth switch unit is electrically connected to the anode of the second DC voltage; and second terminals of the third switch unit and the fourth switch unit are electrically connected to the refrigerating and heating units. 
     
     
         4 . The power supply test system of  claim 3 , wherein the switch module comprises at least one first switch and one second switch; the micro controller further comprises a temperature signal input terminal, at least one first data input terminal, and a second data input terminal; first terminals of the first switch and the second switch are electrically connected to the temperature signal input terminal; and second terminals of the first switch and the second switch are electrically connected to the first data input terminal and the second data input terminal respectively. 
     
     
         5 . The power supply test system of  claim 4 , further comprising a decoding module electrically connected to the control module, and a display module electrically connected to the decoding module; and the decoding module decodes the temperature signals to temperature values and display the temperature values on the display module. 
     
     
         6 . The power supply test system of  claim 5 , wherein the micro controller further comprises a serial data signal output terminal; the decoding module comprises at least one first register and one second register; each of the first register and the second register comprises two serial data input terminals and a plurality of digital signal output terminals; the serial data signal output terminal is electrically connected to the two serial data input terminals of the first register; and the two serial data input terminals of the second register are electrically connected to one digital signal output terminal of the first register. 
     
     
         7 . The power supply test system of  claim 6 , wherein the display module comprises at least one first numeral tube and one second numeral tube; each of the first numeral tube and the second numeral tube comprises a plurality of digital signal input terminals; the plurality of digital signal output terminals of the first register are electrically connected to the plurality of digital signal input terminals of the first numeral tube; and the plurality of digital signal output terminals of the second register are electrically connected to the plurality of digital signal input terminals of the second numeral tube. 
     
     
         8 . The power supply test system of  claim 6 , wherein the control module further comprises a single-pole double-throw (SPDT); the SPDT comprises a first terminal, a second terminal, and a third terminal; the micro controller further comprises a first switch output terminal and a second switch output terminal; each of the first register and the second register further comprises a clock signal input terminal; the first terminal and the second terminal of the SPDT are electrically connected to the first switch output terminal and the second switch output terminal of the micro controller; and the third terminal of the SPDT is electrically connected to the clock signal input terminals of the first register and the second register. 
     
     
         9 . The power supply test system of  claim 8 , wherein when the first terminal and the third terminal of the SPDT are electrically connected, the control module displays the predetermined temperature value on the display module; and when the second terminal and the third terminal of the SPDT are electrically connected, the control module displays the value of the temperature signal in the test chamber on the display module. 
     
     
         10 . The power supply test system of  claim 1 , further comprising a power module adapted to convert an AC voltage to the second DC voltage. 
     
     
         11 . A power supply test system for testing reliability of a power supply, the power supply test system comprising:
 a switch module adapted to input a predetermined temperature value;   a temperature detecting unit adapted to detect temperature signals of the power supply;   a control module adapted to receive the temperature signals; and   a refrigerating and heating module,   wherein the control unit sends a first control signal to the refrigerating and heating module when a value of the temperature signal is less than the predetermined temperature value, the refrigerating and heating module is adapted to heat the power supply upon receiving the first control signal; the control unit sends a second control signal to the refrigerating and heating unit when a value of the temperature signal is greater than the predetermined temperature value, the refrigerating and heating module is adapted to refrigerate the power supply upon receiving the second control signal until the value of the temperature signal is equal to the predetermined temperature value.   
     
     
         12 . The power supply test system of  claim 11 , wherein the control module comprises a micro controller having at least one first control signal output terminal; the refrigerating and heating module comprises at least one first relay control unit and a refrigerating and heating unit; the first relay control unit comprises a first winding unit, a first switch unit, and a second switch unit; a first terminal of the first winding unit is electrically connected to the first control signal output terminal to receive the first control signal; a second terminal of the first winding unit receives a first DC voltage; a first terminal of the first switch unit is electrically connected to an anode of a second DC voltage; a first terminal of the second switch unit is electrically connected to a cathode of the second DC voltage; and second terminals of the first switch unit and the second switch unit are electrically connected to the refrigerating and heating units. 
     
     
         13 . The power supply test system of  claim 12 , wherein the micro controller further comprises at least one second control signal output terminal; the first relay control unit further comprises a second winding unit, a third switch unit, and a fourth switch unit; a first terminal of the second winding unit is electrically connected to the second control signal output terminals to receive the second control signal; a second terminal of the second winding unit receives the first DC voltage; a first terminal of the third switch unit is electrically connected to the cathode of the second DC voltage; a first terminal of the fourth switch unit is electrically connected to the anode of the second DC voltage; and second terminals of the third switch unit and the fourth switch unit are electrically connected to the refrigerating and heating units. 
     
     
         14 . The power supply test system of  claim 13 , wherein the switch module comprises at least one first switch and one second switch; the micro controller further comprises a temperature signal input terminal, at least one first data input terminal, and a second data input terminal; first terminals of the first switch and the second switch are electrically connected to the temperature signal input terminal; and second terminals of the first switch and the second switch are electrically connected to the first data input terminal and the second data input terminal respectively. 
     
     
         15 . The power supply test system of  claim 14 , further comprising a decoding module electrically connected to the control module, and a display module electrically connected to the decoding module; and the decoding module decodes the temperature signals to temperature values and display the temperature values on the display module. 
     
     
         16 . The power supply test system of  claim 15 , wherein the micro controller further comprises a serial data signal output terminal; the decoding module comprises at least one first register and one second register; each of the first register and the second register comprises two serial data input terminals and a plurality of digital signal output terminals; the serial data signal output terminal is electrically connected to the two serial data input terminals of the first register; and the two serial data input terminals of the second register are electrically connected to one digital signal output terminal of the first register. 
     
     
         17 . The power supply test system of  claim 16 , wherein the display module comprises at least one first numeral tube and one second numeral tube; each of the first numeral tube and the second numeral tube comprises a plurality of digital signal input terminals; the plurality of digital signal output terminals of the first register are electrically connected to the plurality of digital signal input terminals of the first numeral tube; and the plurality of digital signal output terminals of the second register are electrically connected to the plurality of digital signal input terminals of the second numeral tube. 
     
     
         18 . The power supply test system of  claim 16 , wherein the control module further comprises a single-pole double-throw (SPDT); the SPDT comprises a first terminal, a second terminal, and a third terminal; the micro controller further comprises a first switch output terminal and a second switch output terminal; each of the first register and the second register further comprises a clock signal input terminal; the first terminal and the second terminal of the SPDT are electrically connected to the first switch output terminal and the second switch output terminal of the micro controller; and the third terminal of the SPDT is electrically connected to the clock signal input terminals of the first register and the second register. 
     
     
         19 . The power supply test system of  claim 18 , wherein when the first terminal and the third terminal of the SPDT are electrically connected, the control module displays the predetermined temperature value on the display module; and when the second terminal and the third terminal of the SPDT are electrically connected, the control module displays the value of the temperature signal in the test chamber on the display module. 
     
     
         20 . The power supply test system of  claim 11 , further comprising a power module adapted to convert an AC voltage to the second DC voltage.