Vehicle-mounted rack-type power supply system
A technology of power supply system and vehicle-mounted machine, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., to achieve the effect of multiple interfaces, small structure volume, and improved automation
Inactive Publication Date: 2019-03-22
SHUANGDENG GRP
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Problems solved by technology
[0003] The present invention mainly aims at the problem of relying on manual control in the prior art, and proposes a vehicle-mounted rack-mounted power supply system with simple configuration, high degree of automation, fast switching speed and many external connectors
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[0014] The present invention will be further described below according to accompanying drawing.
[0015] figure 1 The vehicle-mounted rack-mounted power system shown includes a lithium battery pack, a DC / DC ① boost charging unit, DC / DC ② and ③ step-down units, a power switch board, an air switch and a relay. The lithium-ion battery pack includes a lithium-ion battery and a BMS board. In order to facilitate the charging of lithium-ion batteries with commercial power in an environment with commercial power supply, an input interface for an external AC / DC charger is provided on the lithium-ion battery pack. The specification of the supporting AC / DC charger is AC220V to DC48V . The power switch board is an integrated block, which is composed of a microcontroller, a sampling processing circuit, an RS485 communication circuit and a MOSFET driving circuit. The DC / DC ① step-up charging unit is connected with a circuit breaker and a relay, and is provided with an interface for conne...
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The invention discloses a vehicle-mounted rack-type power supply system, which comprises a lithium battery pack, a DC / DC (1) boosting charging unit, DC / DC (2) and (3) buck units, a power supply switchboard, an air switch and a relay. The lithium battery pack comprises a lithium ion battery and a BMS board. The power supply switch board is composed of a microcontroller, a sampling processing circuit, an RS485 communication circuit and a MOSFET driving circuit. Voltage and current output from the power supply switch board firstly pass through the sampling circuit and then reach a sampling pin of the microcontroller, the microcontroller reads parameter information of the lithium ion battery pack on the BMS board through RS485, the information is uploaded to an upper computer through necessary data processing, and the upper computer sends an instruction as input or output interface control according to the information, thereby realizing automatic control or remote control of a backup power supply system.
Description
technical field [0001] The invention belongs to the technical field of power supply systems. Specifically, the invention relates to a vehicle-mounted power supply system, in particular to a vehicle-mounted rack-mounted power supply system. Background technique [0002] Conventionally, the finalized motor vehicle is configured with a rated generator power, so there is a limit to the power of the load-carrying electrical appliances. In addition, there is a lot of noise and vibration during the operation of the on-board generator, which is not suitable for supplying power to some equipment that requires running in a quiet environment. Therefore, vehicles with special functions are usually equipped with a backup power supply system to supply power for supporting electrical equipment. The backup power system configured in the prior art is generally composed of a battery pack, a charging unit and an output unit, and there is no data or information transmission channel between the...
Claims
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IPC IPC(8): H02J7/00
CPCH02J7/007H02J2207/40
Inventor 吴家龙钟义华史雪林李正佳
Owner SHUANGDENG GRP