WO2019075803A1

WO2019075803A1 - Charging and discharging method and device for power supply system of small boat

Info

Publication number: WO2019075803A1
Application number: PCT/CN2017/110047
Authority: WO
Inventors: 阮林; 赵自奇; 全惠文; 张瑞; 景帅文
Original assignee: 广船国际有限公司
Priority date: 2017-10-19
Filing date: 2017-11-08
Publication date: 2019-04-25
Also published as: CN107612089A

Abstract

A charging and discharging method and device for a power supply system of a small boat. The method comprises: when an engine stops working, making a first accumulator and a second accumulator be in parallel connection and supplying power to an electric consumption device (S110); determining whether a voltage value of the first accumulator is smaller than an engine starting voltage (S120); and if yes, disconnecting the first accumulator and the second accumulator by using an automatic charging device, and maintaining a state in which the second accumulator supplies power to the electric consumption device (S130). When the engine stops working, the two accumulators are in parallel connection to supply power to the electric consumption device in a small boat, when the voltage of the accumulators is lowered to the engine starting voltage, the two accumulators are timely disconnected, only a domestic accumulator is utilized to supply power, it is ensured that the power is normally supplied to the electric consumption device when the engine stops working, it is also ensured that after the accumulators are started, enough electric quantity is reserved for the engine to be restarted when the engine resumes work, and great convenience is brought to actual application.

Description

Charge and discharge method and device for small boat power supply system

Technical field

The embodiment of the invention relates to a charging and discharging technology of a small boat, in particular to a charging and discharging method and device for a small boat power supply system.

Background technique

The dinghy generally refers to a light boat. Because of its small size, relatively small fuel consumption and convenient handling, it can be widely used for play or rescue. In the power supply system of the small boat, a battery is included, and the battery has to bear the function of starting the engine, and also supplies power to the electric equipment on the boat when the engine is inoperable. Therefore, the normal operation of the power supply system of the small boat is too dependent on the battery. Once the battery fails, the power supply system will not operate normally, which will cause great trouble to the use process.

Summary of the invention

The embodiment of the invention provides a charging and discharging method and device for a small boat power supply system, so as to realize charging and discharging of the power supply system of the small boat.

In a first aspect, an embodiment of the present invention further provides a charging and discharging method for a small boat power supply system, the method comprising:

When the engine stops working, connecting the first battery and the second battery in parallel and supplying power to the powered device;

Determining whether the voltage value of the first battery is lower than an engine starting voltage;

If yes, disconnect the connection between the first battery and the second battery by using an automatic charging device And maintaining a state in which the second battery supplies power to the powered device.

Further, it also includes:

When the engine is started, if it is detected that the voltage value of the first battery is lower than the engine starting voltage, the first battery and the second battery are connected in parallel by an automatic charging device to supply power to the engine.

Further, it also includes:

When the engine is started, if it is detected that the first battery is unable to supply power, the second battery is used to supply power to the engine.

Further, it also includes:

After the engine is started, the first battery is charged by an engine charger in the engine.

Further, it also includes:

When detecting that the voltage of the first battery reaches a minimum reserve voltage, stopping charging the first battery and charging the second battery by using the engine charger.

In a second aspect, an embodiment of the present invention provides a charging and discharging device for a small boat power supply system, the device comprising: an engine, an automatic charging device, a first storage battery, and a second storage battery;

The first battery is connected to the engine, and is connected in parallel with the second battery to supply power to the power device when the engine stops working;

The automatic charging device is respectively connected to the first battery, the second battery and the engine, for detecting a voltage value of the first battery, and a voltage value of the first battery is lower than an engine starting voltage And disconnecting the connection between the first battery and the second battery, and starting the second battery to supply power to the power device.

Further, the automatic charging device is further configured to:

Detecting, when the engine is started, whether a voltage value of the first battery is lower than an engine starting voltage, and if so, establishing a parallel connection of the first battery and the second battery, so that the first battery and the The second battery collectively supplies power to the engine.

Further, the automatic charging device is further configured to:

When the engine is started, detecting whether the first battery is capable of supplying power, and if not, starting the second battery to supply power to the engine.

Further, the engine includes an engine charger for:

The first battery is charged when the engine is started.

Further, when the automatic charging device detects that the voltage of the first battery reaches a minimum reserve voltage, the engine charger is further configured to stop charging the first battery and charge the second battery.

In the technical solution of the embodiment of the present invention, when the engine stops working, two batteries are connected in parallel to supply power to the electric equipment in the small boat. When the voltage of the starting battery drops to the engine starting voltage, the connection of the two batteries is disconnected in time. Only use the daily battery for power supply, which not only ensures the normal power supply of the electrical equipment when the engine stops working, but also ensures that the starting battery retains enough power to enable the engine to start again when it returns to work, which provides great convenience for practical applications. .

DRAWINGS

1 is a flow chart of a charging and discharging method of a small boat power supply system according to Embodiment 1 of the present invention;

2 is a schematic structural view of a charging and discharging device of a small boat power supply system provided in the prior art;

3 is a schematic structural diagram of a charging and discharging device of a small boat power supply system according to Embodiment 2 of the present invention; Figure.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should also be noted that, for ease of description, only some, but not all, of the structures related to the present invention are shown in the drawings.

Embodiment 1

1 is a flow chart of a charging and discharging method for a small boat power supply system according to Embodiment 1 of the present invention. This embodiment can be applied to charging and discharging a power supply system of a small boat, and the method can be charged by a small boat power supply system. The discharge device is executed, and specifically includes:

S110: When the engine stops working, connect the first battery and the second battery in parallel and supply power to the power device.

Among them, the engine of the small boat needs to supply voltage to the engine during the starting process. 2 is a schematic structural view of a charging and discharging device of a small boat power supply system provided in the prior art. At present, a charging and discharging system generally used in a small boat is shown in FIG. 2, and the battery 220 is required to bear the function of starting the engine, and When the engine 210 is stopped or fails to operate, the powering device 230 on the boat is powered. Therefore, this method has a large dependence on the battery. The disadvantage is that once the battery fails or the voltage is too low, the engine cannot be started, and the power supply cannot be powered. The battery must be charged by an external power supply device, and the operation process is cumbersome, which also causes great inconvenience. In the technical solution of the embodiment of the present invention, in a normal case, the first battery can be used as a starting battery, and the main purpose may be The power supply for the engine start-up, the second battery can be used as a daily-use battery, and the main purpose can be emergency standby, which supplies power to the electrical equipment. The two batteries can be two identical batteries, which are distinguished only by the use. When the engine stops working, the battery is in a discharged state, and the first battery and the second battery can be connected in parallel to supply power to the electric device. Specifically, the first battery and the second battery may be connected in parallel by an automatic charging device.

S120. Determine whether the voltage value of the first storage battery is lower than an engine startup voltage. If yes, execute S130.

S130. Disconnect the connection between the first battery and the second battery by using an automatic charging device, and maintain a state in which the second battery supplies power to the powered device.

Wherein, the automatic charging device may include a voltage detecting mechanism, and the voltage detecting mechanism of the automatic charging device detects the voltage value of the first battery, and when the voltage value of the first battery is lower than the engine starting voltage, the automatic charging device may be disconnected. The connection between the first battery and the second battery maintains a state in which the second battery supplies power to the powered device. Wherein, the engine starting voltage may be a minimum voltage value capable of starting the engine, for example, may be 11V. Specifically, the connection between the first battery and the second battery may be disconnected, so that the second battery continues to supply power to the powered device separately. It is also possible to disconnect the connection between the two batteries and the electric equipment at the same time, and then establish a connection between the second battery and the electric equipment, so as to avoid the influence of sudden change of current on the line when the connection mode is directly switched. The above-mentioned objects can be achieved in the above manner, and may be selected according to actual conditions in the specific implementation process, and are not limited herein.

In the technical solution of the embodiment of the present invention, when the engine stops working, two batteries are connected in parallel to supply power to the electric equipment in the small boat. When the voltage of the starting battery drops to the engine starting voltage, the connection of the two batteries is disconnected in time. Only use the daily battery to supply power, which ensures the engine stops. The normal power supply of the electrical equipment during operation ensures that the starting battery maintains sufficient power to enable the engine to start again when it returns to work, which provides great convenience for practical applications.

Based on the above technical solutions, the method further includes:

Wherein, when the engine is started, the battery is required to supply power to the engine. When the automatic charging device detects that the voltage value of the first battery is lower than the engine starting voltage, at this time, only the first battery cannot start the engine, and the first device uses the automatic charging device. The battery and the second battery are connected in parallel to supply power to the engine. Assuming that the starting battery fails to work due to failure, the automatic charging device can make the starting battery and the daily battery in parallel to start the engine through emergency setting, and when the engine is started, the battery can be charged, which greatly reduces the external charging. Inconvenience.

Further, it also includes:

Wherein, after the engine is started, the automatic charging device preferentially causes the charger of the engine to charge the first battery through the detecting circuit, and ensures that the first battery reserves enough power to start the engine again. Preferably, when detecting that the voltage of the first battery reaches a minimum reserve voltage, stopping charging the first battery and charging the second battery by using the engine charger. Specifically, the automatic charging device may automatically close its internal circuit when the voltage of the first battery reaches the minimum reserve voltage, so that the engine charger charges the second battery. Wherein, the minimum reserve voltage may be a voltage that the first battery should normally reserve, and may be slightly larger than the minimum starting voltage of the motor, for example, It is 13.2V.

Embodiment 2

3 is a schematic structural diagram of a charging and discharging device of a small boat power supply system according to Embodiment 2 of the present invention. This embodiment can be applied to charging and discharging a power supply system of a small boat. The device can be implemented by software and/or hardware. The implementation specifically includes: an engine 210, an automatic charging device 320, a first storage battery 330, and a second storage battery 340.

The first battery 330 is connected to the engine 210 for connecting to the second battery 340 in parallel when the engine 210 stops operating, and supplying power to the power device 230;

The automatic charging device 320 is connected to the first battery 330, the second battery 340, and the engine 210, respectively, for detecting the voltage value of the first battery 330, and disconnecting the first when the voltage value of the first battery 330 is lower than the engine starting voltage. The connection between the battery 330 and the second battery 340 activates the second battery 340 to supply power to the powered device 230.

Further, the automatic charging device 320 is further configured to:

When the engine 210 is started, it is detected whether the voltage value of the first battery 330 is lower than the engine starting voltage, and if so, the parallel connection of the first battery 330 and the second battery 340 is established, so that the first battery 330 and the second battery 340 are common to each other. The engine 210 is powered.

Further, the automatic charging device 320 is further configured to:

When the engine 210 is started, it is detected whether the first battery 330 can supply power, and if not, the second battery 340 is activated to supply power to the engine 210.

Further, engine 210 includes an engine charger for:

The first battery 330 is charged when the engine 210 is started.

Further, when the automatic charging device 320 detects that the voltage of the first battery 330 reaches the minimum reserve voltage, the engine charger is further configured to stop charging the first battery 330 and charge the second battery 340.

The charging and discharging device of the above-mentioned small boat power supply system can perform the charging and discharging method of the small boat power supply system provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of performing the charging and discharging method of the small boat power supply system.

Note that the above are only the preferred embodiments of the present invention and the technical principles applied thereto. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various modifications, changes and substitutions may be made without departing from the scope of the invention. Therefore, the present invention has been described in detail by the above embodiments, but the present invention is not limited to the above embodiments, and other equivalent embodiments may be included without departing from the inventive concept. The scope is determined by the scope of the appended claims.

Claims

A charging and discharging method for a small boat power supply system, characterized in that it comprises:

When the engine stops working, connecting the first battery and the second battery in parallel and supplying power to the powered device;

Determining whether the voltage value of the first battery is lower than an engine starting voltage;

If so, the connection between the first battery and the second battery is disconnected by the automatic charging device, and the state in which the second battery is supplied with power to the powered device is maintained.
The method of claim 1 further comprising:

When the engine is started, if it is detected that the voltage value of the first battery is lower than the engine starting voltage, the first battery and the second battery are connected in parallel by an automatic charging device to supply power to the engine.
The method of claim 2, further comprising:

When the engine is started, if it is detected that the first battery is unable to supply power, the second battery is used to supply power to the engine.
The method of any of claims 1-3, further comprising:

After the engine is started, the first battery is charged by an engine charger in the engine.
The method of claim 4, further comprising:

When detecting that the voltage of the first battery reaches a minimum reserve voltage, stopping charging the first battery and charging the second battery by using the engine charger.
A charging and discharging device for a small boat power supply system, comprising: an engine, an automatic charging device, a first storage battery and a second storage battery;

The first battery is connected to the engine, and is connected in parallel with the second battery to supply power to the power device when the engine stops working;

The automatic charging device is respectively connected to the first battery, the second battery and the engine, for detecting a voltage value of the first battery, and a voltage value of the first battery is lower than an engine starting voltage And disconnecting the connection between the first battery and the second battery, and starting the second battery to supply power to the power device.
The device according to claim 6, wherein the automatic charging device is further configured to:

Detecting, when the engine is started, whether a voltage value of the first battery is lower than an engine starting voltage, and if so, establishing a parallel connection of the first battery and the second battery, so that the first battery and the The second battery collectively supplies power to the engine.
The device according to claim 7, wherein said automatic charging device is further configured to:

When the engine is started, detecting whether the first battery is capable of supplying power, and if not, starting the second battery to supply power to the engine.
A device according to claim 7 or claim 8 wherein said engine comprises an engine charger for:

The first battery is charged when the engine is started.
The apparatus according to claim 9, wherein said engine charger is further configured to stop charging said first battery when said automatic charging means detects that said first battery voltage reaches a minimum reserve voltage And charging the second battery.