Ship electromechanical power supply power-off protection device

Abstract

The utility model discloses a ship electromechanical power supply power-off protection device, which comprises a main power supply, a power-off detection module, a switching control module, a standby power supply, a protection circuit module and an alarm module, and is characterized in that the power-off detection module is directly connected to the main power supply and comprises a voltage detector, a current detector and a signal processor; the voltage detector and the current detector are used for collecting voltage and current signals, the signal processor is used for judging whether the signals are power failure or abnormal fluctuation and sending control signals to the switching control module, the switching control module comprises a relay, an electronic switch and a control chip, and the control chip is used for receiving the signals and controlling the switching control module. The protection circuit module comprises an over-current protection circuit, an over-voltage protection circuit and a power supply voltage stabilizing module and is used for monitoring and adjusting current and voltage when the standby power supply is switched, and the alarm module comprises a sound alarm and a light alarm and is used for giving an alarm when the standby power supply is switched.

Description

Technical Field

[0001] The utility model relates to a power-off protection device for a ship's electromechanical power supply. Background Art

[0002] During ship operation, the stability of the power supply system is crucial to the proper operation of electromechanical equipment. Especially during ocean voyages, power outages or abnormal fluctuations in the power supply system can easily lead to serious problems such as damage to electromechanical equipment and loss of ship control. Therefore, designing an effective power outage protection device to ensure protection of electromechanical equipment during power anomalies is an urgent need in the field. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a ship electromechanical power supply power failure protection device.

[0004] A ship electromechanical power supply power failure protection device includes a main power supply, a power failure detection module, a switching control module, a backup power supply, a protection circuit module and an alarm module. The power failure detection module is directly connected to the main power supply. The power failure detection module includes a voltage detector, a current detector and a signal processor. The voltage detector and the current detector are used to collect voltage and current signals. The signal processor is used to determine whether the signal is a power failure or abnormal fluctuation, and send a control signal to the switching control module. The switching control module includes a relay, an electronic switch and a control chip. The control chip is used to receive the signal of the power failure detection module and control the relay to complete the switching between the main power supply and the backup power supply through the electronic switch. The protection circuit module includes an overcurrent protection circuit, an overvoltage protection circuit and a power supply voltage stabilization module, which is used to monitor and adjust the current and voltage when switching to the backup power supply. The alarm module includes an audible and visual alarm, which is used to issue an alarm when switching to the backup power supply.

[0005] As a further improvement, the backup power supply is a lithium battery pack or a diesel generator set.

[0006] As a further improvement, the relay is a high-speed response relay to achieve millisecond-level switching between the main power supply and the backup power supply.

[0007] As a further improvement, the sound and light alarm is a buzzer and an indicator light.

[0008] As a further improvement, the electronic switch is a transistor or an optical coupler.

[0009] As a further improvement, the overcurrent protection circuit uses an electronic fuse to prevent the backup power supply from damaging the device due to excessive current.

[0010] Beneficial effects:

[0011] 1. Realize automatic protection of ship's electromechanical equipment when power is cut off to ensure the continuous operation of the equipment.

[0012] 2. Prevent damage to equipment caused by current fluctuations through backup power supply and protection circuit modules.

[0013] 3. Provide power failure alarm to facilitate crew members to carry out maintenance in time and ensure the reliability of the ship's power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a simplified structural diagram of a ship's electromechanical power supply power-off protection device; DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0016] like Figure 1 As shown, a ship electromechanical power supply power failure protection device includes a main power supply, a power failure detection module, a switching control module, a backup power supply, a protection circuit module and an alarm module;

[0017] The power outage detection module is directly connected to the main power supply and monitors the power supply voltage and current in real time. It includes a voltage detector, a current detector, and a signal processor. The voltage and current detectors collect voltage and current signals, while the signal processor determines whether the signals indicate a power outage or abnormal fluctuations and sends a control signal to the switching control module. When the voltage or current of the main power supply falls below a preset threshold or a power outage occurs, the detector collects the signal and analyzes it through the signal processor. If a power outage or abnormal fluctuation is determined, the detection module sends a control signal to the switching control module, initiating the subsequent power switching process.

[0018] The switching control module includes a relay, an electronic switch, and a control chip. The electronic switch is a transistor or optocoupler, and the relay is a high-speed response relay, enabling millisecond-level switching between the main and backup power sources. The control chip receives signals from the power outage detection module and controls the relay to switch between the main and backup power sources via the electronic switch. Upon receiving a power outage signal, the control chip triggers the relay, disconnecting the main power source and quickly activating the backup power source, ensuring seamless operation of the electromechanical equipment during the power switching process. The entire switching process is designed to complete in milliseconds, preventing equipment from being affected by power outages.

[0019] The backup power source is a lithium battery pack or diesel generator set with automatic charge and discharge protection to ensure it remains fully charged in the event of a power outage. The backup power source's capacity should be sufficient to support short-term operation of electromechanical equipment. An intelligent management system typically monitors the backup power source's charge status and issues maintenance reminders when necessary. Once switched to the backup power source, it provides independent power until the primary power source is restored.

[0020] The protection circuit module includes an overcurrent protection circuit, an overvoltage protection circuit, and a power supply stabilization module. These modules monitor and adjust current and voltage when switching to the backup power source. The overcurrent protection circuit uses an electronic fuse to prevent damage to the device from excessive current flowing through the backup power source, while the overvoltage protection circuit prevents damage to the device from excessive voltage. When switching to the backup power source, the protection circuit module monitors and adjusts current and voltage. The voltage stabilization module uses pulse-width modulation technology to adjust the output voltage, ensuring that current and voltage remain within the device's tolerances.

[0021] The alarm module includes audible and visual alarms, which sound an alarm when switching to the backup power source. These alarms are a buzzer and indicator light, which provide real-time alerts to the crew. In the event of a power outage, the alarm module immediately triggers the buzzer and indicator light to alert the crew. If the main power source returns to normal, the alarm module issues a reset signal, ending the alarm state.

[0022] Overall workflow

[0023] Normal status: The main power supply is supplying power normally, the power failure detection module continuously monitors the power status, and the backup power supply is on standby.

[0024] Power outage occurs: The power outage detection module detects voltage anomaly or power outage and sends a signal to the switching control module.

[0025] Switching process: The switching control module cuts off the main power supply, starts the backup power supply, and the protection circuit module is turned on simultaneously to protect the electromechanical equipment from being affected.

[0026] Fault alarm: The alarm module emits audible and visual alarms to alert the crew.

[0027] Reset recovery: After the main power is restored, the system detects normal operation, the switching control module switches the backup power supply back to the main power supply, the alarm stops, and the system is reset.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ship electromechanical power supply power failure protection device, characterized in that: It includes a main power supply, a power outage detection module, a switching control module, a backup power supply, a protection circuit module and an alarm module. The power outage detection module is directly connected to the main power supply. The power outage detection module includes a voltage detector, a current detector and a signal processor. The voltage detector and the current detector are used to collect voltage and current signals. The signal processor is used to determine whether the signal is a power outage or an abnormal fluctuation, and send a control signal to the switching control module. The switching control module includes a relay, an electronic switch and a control chip. The control chip is used to receive the signal from the power outage detection module, and control the relay to complete the switching between the main power supply and the backup power supply through the electronic switch. The protection circuit module includes an overcurrent protection circuit, an overvoltage protection circuit and a power supply voltage stabilization module, which is used to monitor and adjust the current and voltage when switching to the backup power supply. The alarm module includes an audio and visual alarm, which is used to issue an alarm when switching to the backup power supply.

2. A ship electromechanical power supply protection device according to claim 1, characterized in that: The backup power source is a lithium battery pack or a diesel generator set.

3. A ship electromechanical power supply protection device according to claim 1, characterized in that: The relay is a high-speed response relay to achieve millisecond-level switching between the main power supply and the backup power supply.

4. A ship electromechanical power supply power failure protection device according to claim 1, characterized in that: The sound and light alarm is a buzzer and an indicator light.

5. A ship electromechanical power supply protection device according to claim 1, characterized in that: The electronic switch is a transistor or an optical coupler.

6. A ship electromechanical power supply power failure protection device according to claim 1, characterized in that: The overcurrent protection circuit uses an electronic fuse to prevent the backup power supply from damaging the device due to excessive current.

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