Boeing 737 DC circuit refitting design for teaching

Abstract

The invention discloses a Boeing 737 DC circuit refitting design for teaching and a storage battery placing rack, and belongs to the technical field of aircraft maintenance. A DC voltage stabilizing circuit is used for replacing an aircraft storage battery, thereby reducing aircraft battery losses, prolonging the aircraft battery life, and improving battery usage efficiency; a storage battery andthe DC voltage stabilizing circuit can be alternately used, so the normal operation of storage battery practical training teaching is guaranteed; the DC voltage stabilizing circuit is used for replacing an aircraft storage battery, so the discharging time of the DC circuit is prolonged, and orderly operation of teaching work is guaranteed; the DC voltage stabilizing circuit is used for replacing the aircraft storage battery with the long service life, so the use cost of a retired aircraft is reduced.

Description

technical field [0001] The invention relates to an aircraft maintenance and refitting, in particular to a Boeing 737 DC circuit refitting design for teaching and a battery storage rack, belonging to the technical field of aircraft maintenance and refitting. Background technique [0002] The Boeing 737 aircraft is widely used around the world. As the service life of the aircraft increases, old aircraft are continuously decommissioned. Some of them are used for visits, exhibitions and school teaching. The aircraft does not have airworthiness conditions, but its basic functions can still be used normally. For A Boeing 737 that has been on the ground for too long and is no longer flying. [0003] The existing retired Boeing 737 direct current system has the following problems: [0004] (1) The aircraft battery itself has a limited service life. Due to long-term use, the battery terminal will be corroded, and the corrosion of the battery terminal will become more serious with th...

AI Technical Summary

Problems solved by technology

[0004] (1) The aircraft battery itself has a limited service life. Due to long-term use, the battery terminal will be corroded, and the corrosion of the battery terminal will become more serious with the improper use of time until the circuit path is blocked;

[0005] (2) In order to meet the needs of teaching, it is necessary to charge and discharge the aircraft battery frequently, and repeated charging and discharging will increase the corrosion;

[0006] (3) Before the aircraft battery is charged and discharged, the battery needs to be disassembled and transported to the training room. The special aircraft battery charging and discharging device is used for charging and discharging. The shaking during transportation will affect the battery seal. Leakage, internal acid substances seep into the battery terminals, which will intensify the oxidation of the terminals;

[0007] (4) When carrying out some training and teaching, the aircraft needs to be powered on, the battery power of the aircraft is limited, and there are high-power DC appliances on the aircraft. Only using the battery can easily cause the battery to run out of power in a short time, which cannot guarantee the orderly progress of the teaching work

[0008] (5) When the existing battery reaches the upper limit of its service life, it will lose its function, and the DC circuit on the aircraft will not be connected. However, the purchase cost of aircraft batteries is relatively high, and the cost of purchasing new batteries for decommissioned old aircraft will only increase

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