Air conditioner emergency ventilation power supply circuit system

A technology for power supply circuits and air conditioners, which is used in control/regulation systems, emergency protection circuit devices, and wind power generation. Effect

Inactive Publication Date: 2020-12-04
重庆中车四方所科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is no real-time display fault window for the emergency ventilation power supply of the air conditioner, and the adjustability is poor; when a fault occurs, it does not have the ability to self-diagnose and self-repair the fault and cannot store and analyze the fault; it has poor adaptability to fan load damping; the output voltage Affected by the input voltage, the output ventilation wind power is unstable, etc. The present invention provides an air conditioner emergency ventilation power supply circuit system. Facilitates diagnosis, analysis, handling and storage of faults and helps adapt to changes in wind turbine load damping and input voltage

Method used

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  • Air conditioner emergency ventilation power supply circuit system
  • Air conditioner emergency ventilation power supply circuit system
  • Air conditioner emergency ventilation power supply circuit system

Examples

Experimental program
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Effect test

Embodiment 1

[0041]An air-conditioning emergency ventilation power supply circuit system, comprising a control module, an input module, an output module and a boost module 8, the control module including a DSP micro-control board 19 and an I / O driver board 18, and the I / O driver board 18 Pins are arranged on the pin, and the pins are connected with sensors, and the sensors include a first current sensor 7, a second current sensor 14, a third current sensor 15, a first voltage sensor 4 and a second voltage sensor 9, and the The first current sensor 7 and the second voltage sensor 9 are respectively connected to the boost module 8, the second current sensor 14 and the third current sensor 15 are respectively connected to the output module, and the first voltage sensor 4 is connected to the input module.

[0042] Adopt above-mentioned scheme, when input module, output module or step-up module break down in the air-conditioning emergency ventilation power supply circuit, the signal transmitted ...

Embodiment 2

[0062] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0063] In this embodiment, the specified range of the output voltage is DC 77-137.5V. Since the output voltage of the battery 1 is unstable and exceeds this threshold, an input overvoltage or undervoltage fault occurs, and the fault time exceeds the specified time. The module will cut off the input isolating switch 5 and the pre-charging control switch 601 in time according to the instructions of the control module, so as to keep the power supply isolated from the external input and output; The start command sent from the driver's cab will pull in the input isolating switch 5 and the output isolating switch 12. After the pre-charging process is completed, the pre-charging control switch 601 will be pulled in. So far, the input module is started.

Embodiment 3

[0065] This embodiment is basically the same as the above-mentioned technical solution, the difference is that:

[0066] In this embodiment, when the control module receives the emergency ventilation power start command sent by the driver's cab, it will first conduct a self-check on the feedback status of each internal module. If there is no abnormality, first confirm the current voltage range of the input module. If it meets the network voltage requirements DC 77-137.5V, then drive the input isolating switch 5 and the output isolating switch 12 to close, open the input and output channels, the battery 1 starts to charge the capacitor 803 of the boost module through the charging resistor 602, after the charging is completed, the control module is closed The pre-charge control switch 601 starts to send PWM waves to the power transistor 804 . The boost module 8 boosts the input voltage to a threshold voltage of DC 580V, and the DSP micro-control board 19 realizes the boost throu...

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PUM

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Abstract

The invention belongs to the field of air conditioner power supply circuits, particularly relates to an air conditioner emergency ventilation power supply circuit system, and solves the problems thatan air conditioner emergency ventilation power supply has no real-time display fault window, is low in adjustability, does not have fault self-diagnosis and self-repair capabilities, is poor in faultstorage and analysis and is low in fan load damping adaptability, and that the output voltage is greatly influenced by the input voltage, the output wind power is unstable and the like. The air conditioner emergency ventilation power supply circuit system comprises a control module, an input module, an output module and a boosting module, the control module comprises a DSP micro control panel andan I / O driving board, and pins are arranged on the I / O driving board and are connected with sensors. A power supply of the invention is convenient for observing the operation condition of the air conditioner emergency ventilation power supply and adjusting the output voltage and frequency, convenient for diagnosing, analyzing, processing and storing faults, and convenient for adapting to change offan load damping and input voltage. The power supply circuit system is suitable for emergency power supply of the train air conditioner emergency ventilation power supply.

Description

technical field [0001] The invention belongs to the field of air conditioner power supply circuits, and in particular relates to an air conditioner emergency ventilation power supply circuit system. Background technique [0002] When the train air-conditioning fan fails in the auxiliary inverter power supply, in order to ensure smooth ventilation in the compartment, it is necessary to provide power supply for the air-conditioning fan in emergency mode. The storage battery DC110V is inverted into a three-phase AC380V AC power supply to provide emergency power supply for the ventilator to ensure the ventilation of the train passenger compartment. [0003] When the current air-conditioning emergency ventilation power supply is working normally, the operator cannot view the three-phase voltage and frequency output by the inverter in real time. When adjustment is required, the adjustability is poor; when a fault occurs, it will be shut down for protection, but there is no window ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M7/5387H02M1/44H02M1/32H02H9/02H02H9/04H02H7/122H02H3/20H02H3/24G08B5/36
CPCG08B5/36H02H3/202H02H3/207H02H3/243H02H7/122H02H9/02H02H9/04H02M1/32H02M1/44H02M3/156H02M7/5387Y02E10/76
Inventor 刘建谷翠军赵渊李宇张大威李万生张星李松徐杨非
Owner 重庆中车四方所科技有限公司
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