Photovoltaic-commercial power complementary type charging and discharging maintenance device for 12-V storage battery
A technology for maintaining devices and batteries, applied in battery circuit devices, photovoltaic power generation, circuit devices, etc., can solve the problems of insufficient power of equipment, unstable use, unclear remaining battery power, etc., to achieve a high degree of automation, improve work efficiency and The effect of the service life
Active Publication Date: 2017-06-09
QUZHOU COLLEGE OF TECH
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Problems solved by technology
[0003] A battery that has been in an over-discharged or overcharged state for a long time, because the internal conductive ions cannot be effectively excited, will greatly affect its service life due to improper use. Users often do not know the remaining power of the battery when using the battery. Timely and effective charging and discharging may lead to insufficient power or unstable use of the equipment during work
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[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described here are only used to specifically illustrate the implementation of the present invention and do not constitute a limitation to the present invention.
[0043] Reference Figure 1-12 : 12V battery photovoltaic mains mutual supplementary discharge maintenance device, including power supply module, photovoltaic mains complementary combined logic control module, and battery charge and discharge comparison control module. The nominal voltage of the battery is 12V.
[0044] The photovoltaic mains complementary combination logic control module includes a non-self-locking button. In this embodiment, it is a double-pole double-throw switch S1 linked by two switches. One blade of the double-pole double-throw switch S1 passes through the RS button. The anti-shake circuit is connected to the double-D trigger c...
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The invention relates to a photovoltaic-commercial power complementary type charging and discharging maintenance device for a 12-V storage battery. The device comprises a photovoltaic-commercial power complementary combination logic control module and a storage battery charging and discharging comparison control module. A ratio of an R1 to an R2, a ratio of an R3 to an R4, and numerical values of a first reference voltage and a second reference voltage are set. When a terminal voltage of a storage battery reaches an over-charging turn-off voltage, a first voltage hysteresis comparator cuts off charging to the storage battery by a third relay and the over-charging turn-off state is kept until the terminal voltage of the storage battery reaches a charging turn-off recovery voltage; and then charging to the storage battery is recovered. When the terminal voltage of the storage battery reaches an over-discharging turn-off voltage, a second voltage hysteresis comparator cuts off discharging to a load by a fourth relay and the over-discharging turn-off state is kept until the terminal voltage of the storage battery reaches a discharging turn-off recovery voltage. Therefore, the state of the storage battery can be detected automatically; and automatic charging and discharging as well as turn-off control and turn-off recovery control is carried out.
Description
Technical field [0001] The invention relates to a photovoltaic mains mutual supplementary discharge maintenance device of a battery with a nominal voltage of 12V. Background technique [0002] In daily life, because the battery has the advantages of being portable and reusable, many commonly used electronic devices or instruments will use 12V batteries for power supply. Most of these electronic devices are mainly portable. With the development of renewable energy, It will become a trend to use photovoltaic and commercial power complementary methods to charge batteries. In addition, the correct charging and discharging method not only saves costs, but also effectively prolongs the service life of the battery. The ideal terminal voltage range of a battery with a nominal voltage of 12V is 12V to 13.5V. Whether the battery is in overdischarge or overcharge status, it will affect For the service life of the battery, during the use of a battery with a nominal voltage of 12V, try to av...
Claims
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IPC IPC(8): H02J7/35G01R19/165
CPCH02J7/35G01R19/16542G01R19/16576Y02E10/56
Inventor 廖东进李根吕舟
Owner QUZHOU COLLEGE OF TECH