Marine discharge equalization isolator

Abstract

The utility model relates to the technical field of ship electrical control, and discloses a ship discharge balancing isolator, including multiple input terminals and an output terminal, each input terminal is forwardly connected to a high-power diode between the output terminal, the output terminal is used to connect to a ship load, and the multiple input terminals are respectively connected to multiple ship batteries, the multiple ship batteries have a voltage of 24-48V and a power of 5-20KW. The utility model provides multiple battery access paths, and through the forward diodes connected to each battery path, the batteries will not interfere with each other during the discharge process of the multiple batteries, and can play a role in balanced discharge.

Description

Technical Field

[0001] The utility model relates to the technical field of ship electrical control, in particular to a ship-used discharge equalization isolator. Background Art

[0002] With the development of battery technology, ships are equipped with backup batteries or multiple main power batteries in addition to the main power battery to extend the battery power supply time.

[0003] When multiple power supply batteries are installed, they are generally connected in parallel, assisted by a power management circuit to monitor the battery power supply process. The commonly used power supply mode is to install a circuit breaker on each parallel battery circuit to select different batteries as power supply batteries to power the hull load (see Appendix Figure 3 ). When two or more batteries are connected in parallel to supply power to the marine load at the same time, the batteries will interfere with each other due to differences in circuits and internal resistance, resulting in uneven discharge, which can easily increase the current flow between batteries, causing power loss and safety hazards. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a ship-used discharge balancing isolator, which provides multiple battery access paths, and achieves the effect of balanced discharge by connecting forward diodes to each battery path so that the batteries will not interfere with each other during the discharge process of the multiple batteries.

[0005] The technical solution adopted by the utility model is:

[0006] A marine discharge equalization isolator is characterized in that it includes multiple input terminals and an output terminal, a high-power diode is forwardly connected between each input terminal and the output terminal, the output terminal is used to connect to a marine load, and the multiple input terminals are respectively connected to multiple marine batteries, and the voltage of the multiple marine batteries is 24-48V and the power is 5-20KW.

[0007] Furthermore, the voltage drop of the high-power diode is less than 3V.

[0008] Furthermore, the number of the input terminals is 2-6, and the number of the marine batteries is also 2-6 accordingly.

[0009] Furthermore, the isolator also includes a multi-way control switch and an indicator light, each control switch controls an input terminal, and each indicator light indicates the state of each input terminal.

[0010] Furthermore, the power levels of the multiple marine batteries at the input ends connected through the control switch are the same or similar.

[0011] The beneficial effects of the utility model are:

[0012] (1) During the discharge process of parallel batteries, the batteries will not interfere with each other and can achieve balanced discharge;

[0013] (2) Direct connection of multiple batteries, easy installation;

[0014] (3) Choose high-power diodes with small voltage drop and long life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the internal planar structure of the isolator of the utility model;

[0016] Attached Figure 2 This is a schematic diagram of the battery powered circuit after installation through the isolator;

[0017] Attached Figure 3 It is a schematic diagram of a battery power supply circuit in the prior art. DETAILED DESCRIPTION

[0018] The specific implementation of the marine discharge equalization isolator of the utility model is described in detail below with reference to the accompanying drawings.

[0019] See attached Figure 1 The marine discharge equalization isolator of this patent includes multiple input terminals 1 and an output terminal 2. A high-power diode 3 is forwardly connected between each input terminal 1 and the output terminal 2. The output terminal 2 is used to connect to the marine load. The multiple input terminals 1 are respectively connected to multiple marine batteries. The voltage of the multiple marine batteries is 24-48V and the power is 5-20KW.

[0020] Through the power management circuit, the isolator is also configured with a multi-way control switch 4 and an indicator light 5 , each control switch 4 controls an input terminal 1 , and each indicator light 5 indicates the state of each input terminal 1 .

[0021] See attached Figure 2 After installing the isolator, each of the three batteries is connected in series with a diode, and the load receives the output current of each of the three batteries at the same time. Due to the existence of the diode, no current will be generated between the three batteries due to the potential difference, ensuring the balanced discharge of each battery. The diode uses a high-power tube with a small reverse current and a voltage drop of less than 3V to reduce the impact on the battery power supply.

[0022] For ships of different displacement, 2-6 batteries can be configured for power supply at the same time according to their different power loads, and the isolator is also transformed into 2-6 input terminals and diodes. For multi-battery power supply, try to use batteries of the same capacity and power to ensure stable current output for the load.

[0023] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A marine discharge equalization isolator, characterized in that: It includes multiple input terminals and one output terminal, a high-power diode is forwardly connected between each input terminal and the output terminal, the output terminal is used to connect to a marine load, and the multiple input terminals are respectively connected to multiple marine batteries, the voltage of the multiple marine batteries is 24-48V, and the power is 5-20KW.

2. The marine discharge equalization isolator according to claim 1, characterized in that: The voltage drop of the high power diode is less than 3V.

3. The marine discharge equalization isolator according to claim 1, characterized in that: The number of the input terminals is 2-6, and the number of the marine batteries is also 2-6 accordingly.

4. The marine discharge equalization isolator according to any one of claims 1 to 3, characterized in that: The isolator further comprises a multi-way control switch and an indicator light, each control switch controls an input terminal, and each indicator light indicates the state of each input terminal.

5. The marine discharge equalization isolator according to claim 4, characterized in that: The power levels of the multiple marine batteries at the input ends connected through the control switch are the same or similar.

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