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.

Inactive Publication Date: 2018-11-16
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a capacitor failure storage device at the air-conditioning inlet terminal to solve the problem that it is difficult to determine whether the capacitor failure is caused by overvoltage

Method used

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  • Air conditioner incoming line terminal capacitance failure storage device and capacitance failure analysis method
  • Air conditioner incoming line terminal capacitance failure storage device and capacitance failure analysis method
  • Air conditioner incoming line terminal capacitance failure storage device and capacitance failure analysis method

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Effect test

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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Abstract

The invention provides an air conditioner incoming line terminal capacitance failure storage device and a capacitance failure analysis method. The air conditioner incoming line terminal capacitance failure storage device is connected with the capacitance of an air conditioner incoming line terminal, and comprises a voltage detection circuit and a data storage unit, wherein the voltage detection circuit is used for detecting a voltage value of the capacitance in real time; and the data storage unit is connected with the voltage detection circuit and is used for storing a voltage value of the capacitance. The capacitance failure analysis method is based on the air conditioner incoming line terminal capacitance failure storage device. Therefore, the data storage unit is used for storing the voltage value of the capacitance, and once if the phenomenon that the capacitance is failed occurs, the voltage value in the data storage unit can be read, so that whether the capacitance failure is caused by overvoltage or not can be further easily determined according to the voltage value; and the reasons of capacitance failure can be clearly judged within a short time, so that the convenience injudgment is realized, and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of capacitance detection, in particular to a capacitor failure storage device and a capacitor failure analysis method at an air-conditioner inlet terminal. Background technique [0002] At present, the after-sales service often reports that the capacitor at the inlet terminal of the air conditioner outdoor unit fails, but the cause of the failure cannot be determined. After careful investigation and research, it is initially believed that the debugger may have mistakenly connected the three-phase 380V voltage to the power supply. [0003] However, the connection of 380V will not lead to the failure of the capacitor immediately. Therefore, it is difficult to determine whether the failure of the capacitor must be caused by the wrong connection of the 380V voltage, or the failure of the capacitor itself caused by the problem of the design of the capacitor itself. This brings great difficulties to normal after-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/32F24F11/38F24F11/64F24F11/88
CPCF24F11/32F24F11/38F24F11/64F24F11/88
Inventor 郭群范孙操刘世勇朱文超张伟强
Owner NINGBO AUX ELECTRIC
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