Air conditioner incoming line terminal capacitance failure storage device and capacitance failure analysis method
A storage device and failure analysis technology, which is applied to the field of capacitor failure storage device and capacitor failure analysis at the air-conditioning inlet end, can solve problems such as difficulty in determining capacitor failure, and achieve the effects of high accuracy and convenient judgment.
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Embodiment 1
[0041] like figure 1 As shown, it is a schematic diagram of the capacitor failure storage device of the air-conditioning inlet terminal according to the present invention; wherein, the capacitor failure storage device of the air-conditioning inlet terminal is connected to the capacitor 1 arranged at the air-conditioning inlet terminal, and the air-conditioning inlet terminal Terminal capacitance fail memory devices include:
[0042] A voltage detection circuit 2 detects the voltage value of the capacitor 1 in real time;
[0043] The data memory 3 is connected with the voltage detection circuit 2 and stores the voltage value of the capacitor 1 .
[0044] In this way, the voltage value of the capacitor 1 is stored by the data memory 3, once the failure of the capacitor 1 occurs, the voltage value in the data memory 3 can be read, and then it can be easily determined according to the voltage value whether the capacitor 1 is caused by overvoltage. fail.
Embodiment 2
[0046] The difference of this embodiment is that the data in the data memory 3 will not be lost after the data storage device 3 is powered off. In this way, even if the data memory 3 is powered off due to the failure of the capacitor 1, the voltage value can still be read from the data memory 3 after the power is turned off, and then it can be determined according to the voltage value whether the failure of the capacitor 1 is caused by overvoltage.
Embodiment 3
[0048] The difference of this embodiment is that the data memory 3 is an EEPROM chip.
[0049] EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read-only memory) is a memory chip that does not lose data after power failure.
[0050] The EEPROM chip can be erased and reprogrammed through the action of a higher than normal voltage; therefore, the latest voltage value data of the capacitor 1 can be stored in the chip, and when the chip capacity is insufficient, it can be erased and reprogrammed. The expired data is updated to the latest data, so that it is convenient to read the data after the failure of the capacitor 1, and judge whether the failure of the capacitor 1 is caused by overvoltage.
[0051] In addition, the EEPROM chip is a commonly used chip on the existing air conditioner outdoor unit. If this chip is selected, an additional voltage detection circuit 2 can be added on the basis of the existing air conditioner outdoor u...
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