Large power automatic switching type vehicle starting power supply

Abstract

The invention relates to a large power automatic switching type vehicle starting power supply which belongs to the technical field of power supplies. The vehicle starting power supply comprises a power supply housing, a storage battery and a master control circuit board. The master control circuit board comprises an MCU (Micro controller unit), an LCD display module, a press key control module, a power charging control module, an external output module and a vehicle starting module. The LCD display module, the press key control module, the power charging control module, the external output module and the vehicle starting module are all electrically connected with the MCU control module. The MCU is further electrically connected with a low temperature heating module and a high temperature warning module. The vehicle starting module comprises a 12V output unit, a 24V output unit, an automatic detection unit for voltage, an LED indication control unit, an automatic switching unit for voltage, an auxiliary converting unit for voltage and a forced switching unit for voltage. The vehicle starting power supply is suitable to start different vehicles and when used, the power supply automatically detects the voltage of a vehicle storage battery and automatically switches to a corresponding voltage gear according to the voltage of a storage battery required to start a vehicle. In this manner, overall intelligent switching control can be achieved and when a storage battery is damaged or removed, people can manually operate to switch different voltage gears in a forced manner.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a high-power automatic switchable starting power supply for automobiles. Background technique [0002] Existing automobile emergency starting power supplies have various functions, and the main function is to start the automobile in an emergency when the automobile cannot be started. [0003] Different cars have different battery voltage settings. For example, the battery voltages of cars, trucks, and engineering vehicles are all different. In order to match the use of a variety of different voltage models, there are car emergency starters that can output two voltages on the market. Power supply, which can output 12V voltage or 24V voltage. The principle is to realize the superposition of voltage after two batteries are connected in series. The voltage switching process is realized by switching the switch. The switching switch is a mechanical switch. After switching the mech...

AI Technical Summary

Problems solved by technology

[0003] Different cars have different battery voltage settings. For example, the battery voltages of cars, trucks, and engineering vehicles are all different. In order to match the use of a variety of different voltage models, there are car emergency starters that can output two voltages on the market. Power supply, which can output 12V voltage or 24V voltage. The principle is to realize the superposition of voltage after two batteries are connected in series. The voltage switching process is realized by switching the switch. The switching switch is a mechanical switch. After switching the mechanical switch Two sets of independent battery circuits are connected in series to output high power, and one set of independent battery circuits is directly used when outputting 12V voltage. This structure has the following defects: 1) It is not safe to switch directly through the mechanical switch. With any protection circuit, there is a great potential safety hazard; 2) Two independent batteries take up a lot of space, resulting in a larger overall power supply, which is not easy to carry; 3) It is necessary to manually switch the voltage during normal use, and there is no voltage The detection function needs to ensure the voltage of the car before switching, which is inconvenient to operate

Images