KR102261322B1 - Charging / discharging system for starting fishing boat / farm machinery using solar charging module - Google Patents

Abstract

The present invention protects the battery from overcharging, which may occur reversely when anchoring and stopping of ships and agricultural machinery for a long time, and maintains the fully charged state at all times to maintain the optimal fully charged state so that it can be used immediately when necessary, while maintaining the lifespan of the battery It provides an optimal charging system for extension, and can be used for accident prevention and verification by operating the warning light and black box for ship identification using the power charged from the solar cell during the day even when the ship is not operating and anchored. We provide a battery charging/discharging system for starting a fishing vessel/agricultural machine using a solar module that can cope with a crisis by propagating at least an emergency situation using the power generated from the solar cell when a problem occurs in the ship's power system during operation.

Description

Battery charging/discharging system for starting fishing boat/farm machinery using solar module {Charging / discharging system for starting fishing boat / farm machinery using solar charging module}

The present invention relates to the charging and discharging of a battery for starting a fishing vessel or agricultural machine, and more particularly, it is not used for a certain period due to seasonal factors, and it is necessary by self-discharge or toxic discharge of a battery for starting a fishing vessel or agricultural machine that is anchored or stopped. It relates to a battery charging/discharging system for starting a fishing boat/agricultural machine using a solar module that can solve the problem of starting unstable.

In recent years, as the demand for portable electronic products such as notebook computers, video cameras, and portable telephones has rapidly increased, and development of electric vehicles, energy storage batteries, robots, satellites, etc. is in full swing, a high-performance secondary battery capable of repeatedly charging and discharging research is being actively conducted.

Currently commercialized secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel-based secondary batteries, so charging and discharging are free, The self-discharge rate is very low and the energy density is high, attracting attention.

When the secondary battery is fully discharged, the corresponding portable terminal can no longer be used, and in order to reuse, the fully discharged secondary battery must be recharged. However, since charging of the secondary battery is generally performed through AC power, when AC power is not available, such as when going out, there may be a problem in that the secondary battery cannot be charged. In addition, even where AC power is available, there is still a problem that AC power cannot be used without an AC adapter.

Recently, in order to improve this problem, a method of charging a battery using solar energy has been proposed. For example, Korean Publication No. 2009-0081894 and Korean Publication No. 2005-0052718 disclose a method of charging a battery by attaching a light collecting plate to a cell phone battery or a notebook body.

In addition, recently, ESS (Energy Storage System) using solar modules has been in the spotlight.

As such, research on charging using solar energy is being applied to various fields such as portable electronic devices, ESSs, homes, and workplaces.

On the other hand, vessels such as vehicles and fishing boats, and agricultural machinery such as cultivators and tractors are equipped with batteries to start them. Ships, cultivators, and tractors such as fishing boats are mainly used from spring to autumn, but are not used in winter to start the engine. battery could be discharged. In this case, it is inconvenient to separately charge the battery or replace the battery.

Prior Art 1: Republic of Korea Patent Publication No. 10-2009-0021785 (Apparatus and method for charging a battery using a solar cell) Prior Art 2: Republic of Korea Patent Publication No. 10-2011-0072216 (A battery pack charging device using a solar cell and a manufacturing method thereof)

Therefore, the present invention is to solve the various disadvantages and problems of the prior art as described above, and maintains a fully charged state at all times while protecting the overcharge of the battery that may be reversely generated when anchoring and stopping of ships and agricultural machinery is long. This provides an optimal charging system for extending the life of the battery while maintaining the optimal state of charge so that it can be used immediately when needed, and checks the vessel using the power charged from the solar cell during the day even when the vessel is not operating and anchored. It can be used for accident prevention and identification by operating the warning light and black box for use, and when a problem occurs in the ship's power system while the ship is running, it uses the power generated from the solar cell to at least propagate an emergency situation, and a solar module that can cope with the crisis. An object of the present invention is to provide a battery charging/discharging system for starting a fishing boat/agricultural machine.

In order to achieve the above object, the present invention includes: a battery 100 for supplying electricity required for starting a fishing boat or agricultural machine and electrical appliances of a fishing boat or agricultural machine; a load 200 operated by electricity including a motor of the fishing boat or agricultural machine, a warning light, and a black box; a solar module 300 for receiving sunlight and converting it into electricity to charge the battery 100; and controlling the electricity converted by the solar module 300 to be charged in the battery 100, from the output voltage of the solar module 300 to a first voltage level required for charging the battery 100 in advance. After removing the imaginary voltage of the battery 100 by charging for a set time, control to charge the battery 100 at a second voltage level relatively lower than the first voltage level until the battery 100 is fully charged to increase charging efficiency It provides a battery charging/discharging system for starting a fishing vessel / agricultural machine using a solar module, characterized in that it includes; a charging/discharging control device 400 for controlling the charging to 100).

Here, the battery 100, the load 200, the solar module 300, and the charge/discharge control device 400 using a solar module, characterized in that it is configured to be selectively attached to and detached from the fishing boat or agricultural machine. Battery charging/discharging system for starting fishing boats/agricultural machinery.

According to the present invention, the following effects are obtained.

First, it is possible to maintain the optimal battery charge state so that it can be used immediately when necessary by always maintaining the fully charged state while protecting the overcharge of the battery, which may occur reversely when anchoring and stopping of ships and agricultural machinery for a long time.

Second, it is possible to provide an optimal charging system for extending the lifespan of a battery while maintaining an optimal fully charged state.

Third, even when the ship is not operating and anchored, it can be used for accident prevention and inspection by operating the warning light and black box for checking the ship using the power charged from the solar cell during the day.

Fourth, when a problem occurs in the ship's power system during the operation of the ship, at least an emergency situation can be propagated using the power generated from the solar cell to cope with the crisis.

1 is a view for explaining an embodiment of a battery charging/discharging system for starting a fishing vessel / agricultural machinery using a solar module according to the present invention.
2 is a flowchart for explaining an embodiment of a charging/discharging method in a battery charging/discharging system for starting a fishing vessel/agricultural machinery using a solar module according to the present invention.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

In addition, the terms used in the present invention have been selected as widely used general terms as possible, but in certain cases, there are also terms arbitrarily selected by the applicant, and in this case, the meaning is described in detail in the description of the corresponding invention, so it is a simple term It is intended to clarify that the present invention should be understood as the meaning of the term, not the name. In addition, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

1 is a view for explaining an embodiment of a battery charging/discharging system for starting a fishing boat / agricultural machine using a solar module according to the present invention.

A battery charging/discharging system for starting a fishing boat/agricultural machinery using a solar module according to the present invention is as shown in FIG. 1 , a battery 100, a load 200, a solar module 300, and a charging/discharging control device 400 is composed of

Here, the battery 100 supplies electricity required for starting a fishing boat or agricultural machine and electrical appliances of a fishing boat or agricultural machine.

The load 200 is a device operated by electricity such as a motor of a fishing boat or agricultural machine, a warning light, a black box, and the like.

The solar module 300 receives sunlight, converts it into electricity, and charges the battery 100 .

The charge/discharge control device 400 controls to charge the electricity converted by the solar module 300 to the battery 100 .

In general, since the electric system of a fishing boat or agricultural machine is operated with two electric systems of 12V and 24V, the battery charging/discharging system using the solar module of the present invention is also configured with 12V and 24V.

However, in the case of a 12V battery, the voltage of the solar module 300 is 17-18V in order to charge the battery to 14.4V, and in the case of a 24V battery, the voltage of the solar module 300 is charged to 28.8V. was configured with 35-36V.

The reason why 12V and 24V batteries are charged at 14.4V and 28.8V is that the 12V battery 100 has a voltage of about 12.8V when fully charged (12V and 24V are nominal voltages), and the battery 100 is used ( When the battery is discharged), it drops below that level, and when charging the battery, there must be a potential difference of 1.5V (positive potential - negative potential) from the voltage when the battery is fully charged, so that electric energy (current) can be inserted between them. For example, a cell phone battery is usually charged at a voltage of 3.7V, but the charging voltage is from 4.2V to 5V.

2 is a flowchart for explaining an embodiment of a charging/discharging method in a battery charging/discharging system for starting a fishing vessel/agricultural machinery using a solar charging module according to the present invention.

In the following description, the battery is based on a 12V battery.

The solar module 300 is charged with a voltage of 14.4V (first voltage level) required for charging the battery from the voltage of 17V (S100).

At this time, if 14.4V is maintained for 30 minutes to 90 minutes (preferably 1 hour) as the primary (S110), 1/10 of the battery capacity in order to remove the empty voltage remaining in the battery and increase the charging efficiency Discharge with a current (A) of 1/40 to 1/40 (preferably 1/20) for 1 to 5 seconds (preferably 3 seconds) to remove the phantom voltage and then recharge (S120, S130). If this process is repeated 1 to 4 times (preferably 2 times), the battery 100 is considered to be in a fully charged state and is charged until charging is completed while maintaining the charging voltage at 13.5V (second voltage level) (S140). ).

On the other hand, when the voltage of the solar module 300 is 0V after 1 hour after sunset, the current (A) of 1/10 to 1/40 (preferably 1/20) of the battery capacity is 1 to 5 seconds (preferably) After discharging for 3 seconds), if the voltage of the battery 100 is 12.8V or higher, the battery is considered to be in a fully charged state, and after sunrise the next day, the charging voltage of the battery starts charging at 13.5V instead of 14.4V (S160).

Currently, the battery 100 generally used in fishing boats and agricultural machinery is an MF (Maintenance Free) type battery that cannot be refilled with distilled water, so the cause of the battery lifespan is overcharge and dilute sulfuric acid (Sg1.280 38wt %). It can be called depletion of electrolyte due to evaporation by electrolysis of water (H20) (wt62%). Therefore, the optimal charging condition of the battery is only required to be charged with a minimum amount of electrical energy for maintaining the battery 100 in a fully charged state. To this end, it is necessary to maintain a low (13.5V) potential difference of the charging voltage for maintaining the fully charged voltage (12.8V) of the battery.

For reference, the charging and discharging principle of a lead-in battery is,

Even if the battery 100 is fully charged, if the battery 100 is charged to 14.4V through the photovoltaic module 300 continuously, the electrical energy generated in the photovoltaic module 300 is stored as chemical energy and then continuously enters. Electrical energy is used for thermal energy (battery is warm while charging) and electrolysis of water (H2O) in electrolyte (H20 ↔ 2H + ½O2), and there was a problem that caused the electrolyte to be depleted by scattering as a gas. can

On the other hand, if the power generation by the solar module 300 is unstable for a long time, such as rain, if the battery voltage 1 hour after sunset (for example, the voltage after 3 seconds of discharging at 1/20 current) is 12.8V or less, the battery (100) after sunrise ) is, as described above, primarily maintained at 14.4V for 30 minutes to 90 minutes (preferably 1 hour), in order to remove the empty voltage remaining in the battery and increase the charging efficiency, 1 of the battery capacity Discharge with a current (A) of /10 to 1/40 (preferably 1/20) for 1 to 5 seconds (preferably 3 seconds) to remove the phantom voltage and then recharge. If this process is repeated 1 to 4 times (preferably 2 times), the battery 100 is considered to be in a fully charged state and is charged while maintaining the charging voltage at 13.5V.

To this end, an illuminance sensor is added to the charge/discharge control device 400 and may be operated through a timer of the controller of the charge/discharge control device 400 .

As described above, in the present invention, since an imaginary voltage is generated to charge the battery 100 , the charging is difficult regardless of the state of charge of the battery 100 (normally, when a constant voltage is reached in the constant voltage charging method, energy (current) is no longer entered. ), to overcome this, the spurious voltage for checking the full charge is removed. And if full charge is confirmed, charging the battery with energy (current) any longer is a factor that shortens the life of the battery.

On the other hand, the battery 100, the photovoltaic module 300, and the charge/discharge control device 400 shown in FIG. 1 are selectively detachable from the fishing vessel or agricultural machinery and detachable (separated) from the fishing vessel or agricultural machinery when not used for a long period of time. After storage, it is preferable to attach and use it as needed.

Although the present invention has been described with the above examples, the present invention is not necessarily limited to these examples, and various modifications may be made without departing from the technical spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these examples. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: battery 200: load
300: solar module 400: charge/discharge control device

Claims (2)

Battery 100 for supplying electricity required for starting fishing boats or agricultural machinery and electrical appliances of fishing boats or agricultural machinery;
a load 200 operated by electricity including a motor of the fishing boat or agricultural machine, a warning light, and a black box;
a solar module 300 for receiving sunlight and converting it into electricity to charge the battery 100; and
Control to charge the electricity converted in the photovoltaic module 300 to the battery 100, the output voltage of the photovoltaic module 300 is preset to a first voltage level required for charging the battery 100 Control to charge the battery 100 by controlling the battery 100 to be charged until the battery 100 is fully charged at a second voltage level that is relatively lower than the first voltage level after removing the imaginary voltage of the battery 100 by charging for a period of time and a charge/discharge control device 400 to
The charging and discharging of the battery 100 is,
When the battery 100 is a 12V battery by the charge/discharge control device 400 , the first voltage level is 14.4V when the battery 100 is charged through the voltage converted by the solar module 300 . After charging (S100, S110) while maintaining the furnace for 30 to 90 minutes, discharge for 1 to 5 seconds with a current (A) of 1/10 to 1/40 of the capacity of the battery 100 (S120) to empty the battery Voltage) is repeated 1 to 4 times (S130), and then, while maintaining the charging voltage at the second voltage level of 13.5V, charging until charging is complete (S140, S150),
The charge/discharge control device 400 is 1/10 to 1/40 of the capacity of the battery 100 when the voltage of the solar module 300 is 0V after 1 hour after sunset through the illuminance sensor and the timer. After discharging the battery 100 for 1 to 5 seconds with a current (A) of The charging voltage for the battery 100 is charged to the second voltage level of 13.5V (S160),
The battery 100, the load 200, the solar module 300 and the charge/discharge control device 400 are configured to be selectively attached to and detached from the fishing vessel or agricultural machine,
When the battery 100 is an MF (Maintenance Free) type battery that cannot be replenished with distilled water, the charge/discharge control device 400 adjusts the voltage of the solar module 300 to the battery while maintaining the charging voltage at 13.5V. (100) Battery charging/discharging system for starting fishing boats / agricultural machinery using a solar module, characterized in that charging. delete

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