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48V power supply system applied to photovoltaic power generation recreational vehicle

A power supply system and photovoltaic power generation technology, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve problems such as affecting the safety of electricity consumption and RV circuit fire, and achieve the effect of reducing line current and avoiding spontaneous combustion.

Pending Publication Date: 2020-07-24
南京中港电力股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Cables and connectors heat up due to high current, which may even affect the safety of electricity use in severe cases, causing fire problems in RV circuits

Method used

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  • 48V power supply system applied to photovoltaic power generation recreational vehicle
  • 48V power supply system applied to photovoltaic power generation recreational vehicle
  • 48V power supply system applied to photovoltaic power generation recreational vehicle

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Embodiment Construction

[0033]Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] The present invention provides a 48V power supply system applied to a caravan with photovoltaic power generation, such as Figure 1-4 As shown, it includes generator G, 12V starting battery H, bidirectional DCDC module B, lithium battery E, control module A, charge and inverter integrated machine C, photovoltaic charging controller D, smart home module F, and photovoltaic panel I. The CAN communication interfaces of control module A, bidirectional DCDC module B, charging and inverter integrated machine C, photovo...

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Abstract

The invention provides a 48V power supply system applied to a photovoltaic power generation recreational vehicle. The 48V power supply system comprises a generator, a 12V starting battery, a bidirectional DCDC module, a lithium battery, a control module, a charging and inverting integrated machine, a photovoltaic charging controller, a smart home module and a photovoltaic cell panel. Positive andnegative electrodes of an output end of a generator are connected to the positive and negative electrodes of the 12V starting battery through cables; the positive electrode and the negative electrodeof the 12V starting battery are connected to the 12V positive electrode and the 12V negative electrode of the bidirectional DCDC module through the cables; a 48V side positive electrode and a 48V sidenegative electrode of the bidirectional DCDC module are connected to the positive electrode and the negative electrode of the lithium battery; the positive and negative electrodes of the lithium battery are connected with the positive and negative electrodes of the 48V sides of the charging and inverting integrated machine and the photovoltaic charging controller; and the positive electrode and the negative electrode of the photovoltaic cell panel are connected to an input port of the photovoltaic charging controller. A line current can be greatly reduced, and a spontaneous combustion phenomenon caused by large-current heating is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of power supply systems, in particular to a 48V power supply system applied to a caravan equipped with photovoltaic power generation. Background technique [0002] The early RV power supply was a 12V system. The generator generated electricity and charged the starting battery. The 12V energy storage battery of the RV was connected in parallel to the starting battery through an isolator. At this time, the maximum charging current can reach 150A, which puts high demands on the vehicle charging circuit system. All cable connectors must undergo special treatment, and all switches, fuses, and contactors on the circuit must use high-current specifications, which will undoubtedly increase circuit complexity and installation and maintenance costs; 12V double battery isolator insurance specifications It is 500A, and the insurance is often damaged. [0003] The problem of discharge is even more prominent. During the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H02J7/35H02M3/28H02J3/38B60R16/033
CPCH02J7/34H02J7/35H02M3/28H02J3/38B60R16/033B60R16/0315H02M1/0012Y02B10/10
Inventor 杨晓川高凡刚
Owner 南京中港电力股份有限公司
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