Battery system for bracket type small-sized low-voltage electric ship

Abstract

The utility model discloses a battery system for a bracket type small-sized low-voltage electric ship. The battery system comprises a battery rack, a plurality of battery boxes, a convergence high-voltage box, a charging box and an operation box, on one hand, the battery rack is designed in a gridding support mode, the battery rack can be expanded in the transverse direction and the longitudinal direction, and free configuration of the voltage and the capacity of a battery system is facilitated; on the other hand, the battery box and the confluence high-voltage box are integrated, the problems that the confluence high-voltage box independently occupies the ship space and is complex to install are solved, and the ship space utilization rate is increased; and on the other hand, the split type design is adopted, the charging box and the operation box are separated from the battery box, the installation position is more flexible, and design of the ship body is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of marine batteries, and in particular relates to a bracket-type small-sized low-voltage electric marine battery system. Background Art

[0002] In recent years, with the development of electrification and intelligence in the field of shipbuilding, more and more small ships have begun to adopt pure electric power systems, such as fishing, sightseeing, surveying and mapping, scientific research and other scenarios. Pure electric ships have zero noise and zero pollution during driving, which can bring users a safer and more comfortable experience. However, due to the compact space of small ships and the power battery system far away from the cab, it is very necessary to design a convenient and flexible power battery system to adapt to the separation of the battery compartment and the control room of small ships. Summary of the invention

[0003] The main purpose of the utility model is to overcome the shortcomings of the prior art and provide a bracket-type small low-voltage electric ship battery system, which networks the battery rack in a bracket-type design and can be expanded arbitrarily to facilitate the free configuration of the battery system voltage and capacity; and integrates the battery box and the converging high-voltage box to avoid the complexity of on-site installation; at the same time, the operating box is separated from the battery box and installed in the ship's control room, which is more convenient to operate.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a bracket-type small low-voltage electric marine battery system, including a battery rack, a plurality of battery boxes, a converging high-voltage box, a charging box and an operating box;

[0005] The battery rack is composed of a plurality of unit spaces for placing battery boxes;

[0006] The battery boxes are connected in series and in parallel to form a battery pack with a certain voltage level and capacity;

[0007] The confluence high-voltage box is installed on one side of the battery rack and is provided with an output power interface, an input power interface, an input communication interface, an output communication interface, a charging power interface and a charging communication interface;

[0008] The output power interface is connected to the load on the ship; the input power interface is electrically connected to a plurality of battery boxes; the input communication interface is communicatively connected to a plurality of battery boxes; the output communication interface is communicatively connected to the operation box; the number of the input power interfaces is equal to or greater than the number of battery boxes; the number of the output power interfaces is equal to or greater than the number of loads;

[0009] The charging box is installed on the hull and connected to the charging power interface and the charging communication interface of the converging high-voltage box through a connecting harness;

[0010] The operation box is installed in the ship's control room;

[0011] The busbar high-voltage box includes a relay, a fuse, a battery management system, a current sensor, an LCD display screen, a pre-charging group, and internal copper bars and wiring harnesses.

[0012] Preferably, the unit space is composed of a unit cross beam and a unit vertical beam, and the unit cross beam and the unit vertical beam are connected by bolts;

[0013] The unit spaces are stacked vertically and / or horizontally to form a battery rack;

[0014] The unit cross beams and unit vertical beams are provided with limiting grooves and bolt connection holes, and the stacked unit spaces are connected by bolts.

[0015] Preferably, the battery box comprises a battery box body and a battery cell; the battery cell is installed inside the battery box body;

[0016] The battery box body includes two battery box power interfaces and one battery box communication interface; one battery box power interface is a total positive battery box power interface, and the other battery box power interface is a total negative battery box power interface;

[0017] The power interface of the battery box is internally connected to the battery monomer and externally electrically connected to the input power interface of the converging high-voltage box;

[0018] The battery box communication interface is internally connected to the battery management system of the battery cell, and externally connected to the input communication interface of the busbar high-voltage box.

[0019] Preferably, the battery monomer is a marine lithium iron phosphate battery; the material of the battery box is sheet metal or stainless steel; and the battery box power interface is a DC power connector.

[0020] Preferably, the LCD display screen is installed on the surface of the busbar high-voltage box to display the status of the battery system, including battery cell voltage and temperature, relay status, total voltage, current, SOC and fault information.

[0021] Preferably, the charging box is composed of a charging box shell and a charging socket, and the charging socket is fixed to the charging box shell by bolts;

[0022] The charging socket adopts a national standard DC fast charging socket or a non-standard charging interface, one end of which is connected to the charger through a charging plug, and the other end is connected to the charging power interface and charging communication interface of the converging high-voltage box.

[0023] Preferably, the operating box is composed of a sheet metal shell and operating components;

[0024] The operating components include a switch, a battery meter, an emergency stop button, a mute button and an audible and visual buzzer;

[0025] The switch is used to control the power on and power off of the battery system;

[0026] The battery meter is used to display basic information of the battery system, including SOC, voltage and fault codes;

[0027] The emergency stop button is used to cut off the battery system in an emergency;

[0028] The mute button is used to manually confirm the fault state and eliminate the sound and light alarm generated by the sound and light buzzer after a fault occurs in the battery system;

[0029] The sound and light buzzer is used to give a sound and light alarm when a battery system fails;

[0030] The switch, battery meter, emergency stop button, mute button and sound and light buzzer are all connected to the junction high-voltage box through a low-voltage wiring harness, and the battery management system in the junction high-voltage box issues a control detection status or gives a control instruction.

[0031] Preferably, the switch is a push-button waterproof switch, and the color is green;

[0032] The battery meter is a round battery meter;

[0033] The color of the emergency stop button is red;

[0034] The mute button is a reset button.

[0035] Preferably, the emergency stop button is equipped with a protective cover.

[0036] Preferably, there are three sound and light buzzers, which are used for low battery alarm, combustible gas detection alarm and BMS alarm respectively.

[0037] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0038] A bracket-type small low-voltage electric ship battery system includes a battery box, a battery rack, a converging high-voltage box, a charging box and an operating box. By standardizing the battery box and gridding the battery rack, the power source can be expanded horizontally and vertically, which is convenient for the configuration of the battery system voltage and capacity; the converging high-voltage box is installed together with the battery rack, and there is no need to reserve a separate installation space for the converging high-voltage box on the ship; at the same time, the charging box and the operating box adopt a split design, and the installation position is more flexible and convenient. The entire battery system can be adapted to different small ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of a bracket-type small low-voltage electric ship battery system in an embodiment.

[0040] Explanation of the accompanying numbers: 1. Battery rack; 2. Battery box; 3. Converging high-voltage box; 4. Charging box; 5. Operation box; 201. Battery box power interface; 202. Battery box communication interface; 301. Output power interface; 302. Input power interface; 303. Input communication interface; 304. Output communication interface; 305. LCD display; 401. Charging box housing; 402. Charging socket; 501. Switch; 502. Emergency stop button; 503. Battery meter; 504. Mute button; 505. Sound and light buzzer. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0042] like Figure 1 As shown, this embodiment provides a bracket-type small low-voltage electric ship battery system, comprising a battery rack (1), a plurality of battery boxes (2), a converging high-voltage box (3), a charging box (4) and an operating box (5);

[0043] The battery rack (1) is composed of a plurality of unit spaces for placing battery boxes;

[0044] A plurality of battery boxes (2) are connected in series and in parallel to form a battery pack having a certain voltage level and capacity;

[0045] The converging high-voltage box (3) is installed on one side of the battery rack (1), and is provided with an output power interface (301), an input power interface (302), an input communication interface (303), an output communication interface (304), a charging power interface and a charging communication interface; the output power interface (301) is connected to the load on the ship; the input power interface (302) is electrically connected to a plurality of battery boxes (2) in the battery rack; the input communication interface (303) is communicatively connected to a plurality of battery boxes (2) in the battery rack; the output communication interface (304) is communicatively connected to the operation box (5); wherein the number of the input power interfaces is determined according to the number of battery boxes, and may be equal to or more than the number of battery boxes; similarly, the number of the output power interfaces is determined according to the number of loads, and may be equal to or more than the number of loads. In this embodiment, 4 groups of input power interfaces, 3 groups of output power interfaces, 1 group of input communication interfaces, 1 group of output communication interfaces, 1 group of charging power interfaces and 1 group of charging communication interfaces are included.

[0046] The charging box (4) is installed on the hull and connected to the charging power interface and the charging communication interface of the converging high-voltage box through a connecting harness; the operating box (5) is installed in the ship's control room and is separated from the battery box for easy operation and use; the converging high-voltage box (3) includes a relay, a fuse, a battery management system, a current sensor, an LCD display (305), a pre-charging group, and internal copper busbars and wiring harnesses (not shown in other figures).

[0047] In a specific embodiment, a unit space of a battery rack is composed of a unit cross beam and a unit vertical beam, and the two are connected and fixed by bolts; multiple unit spaces can be stacked in the vertical direction, or can be expanded horizontally, or combined in two directions to form a battery rack, so as to realize the configuration of different voltage levels and capacities of the battery system. The unit cross beam and the unit vertical beam are both provided with limit grooves and bolt connection holes, and the stacked unit spaces are connected by bolts to realize the lateral and longitudinal extension of the unit space. The unit cross beam and the unit vertical beam are made of materials with excellent corrosion resistance and strength (such as Q235 carbon steel), which can ensure the safety and long-term use of the ship.

[0048] In a specific embodiment, the battery box (2) comprises a battery box body and a battery cell, wherein the battery cell is installed inside the battery box body; the battery box body comprises two battery box power interfaces (201) and a battery box communication interface (202); one of the battery box power interfaces is a total positive battery box power interface, and the other battery box power interface is a total negative battery box power interface; the battery box power interface (201) is internally connected to the battery cell and externally electrically connected to an input power interface (302) of a high-voltage box; the battery box communication interface (202) is internally connected to a battery management system of the battery cell and externally communicatively connected to an input communication interface (303) of the high-voltage box.

[0049] Furthermore, the battery monomer adopts marine lithium iron phosphate battery, such as 14S, 16S, 18S lithium iron phosphate battery; the material of the battery box can be sheet metal or stainless steel (such as 304 or 316 stainless steel). The power interface of the battery box adopts a DC power connector.

[0050] In a specific embodiment, the LCD display screen (305) is installed on the surface of the busbar high-voltage box to display the status of the battery system, including battery cell voltage and temperature, relay status, total voltage, current, SOC and fault information, etc. Specifically, the LCD display screen is 7 inches.

[0051] In a specific embodiment, the charging box (4) is composed of a charging box shell (401) and a charging socket (402), and the charging socket (402) is fixed to the sheet metal shell (401) by bolts; the charging socket (402) adopts a national standard DC fast charging socket or a non-standard charging interface, one end of which is connected to the charger through a charging plug, and the other end is connected to the charging power interface and charging communication interface of the junction high-voltage box, and is used to charge the battery system and perform communication control.

[0052] In a specific embodiment, the operating box (5) is composed of a sheet metal shell and operating components; the operating components include a switch (501), a battery meter (503), an emergency stop button (502), a mute button (504) and an audible and visual buzzer (504);

[0053] The switch (501) is used to control the power on and power off of the battery system; specifically, the switch (501) is a push-button waterproof switch, and the color may be green.

[0054] The battery meter (503) is used to display basic information of the battery system, including SOC, voltage, fault code, etc.; specifically, the battery meter (503) may be a circular battery meter.

[0055] The emergency stop button (502) is used to cut off the battery system in an emergency; specifically, the color of the emergency stop button (502) may be red; optionally, a protective cover may be used for protection to prevent accidental touching.

[0056] The mute button (504) is used to manually confirm the fault state and eliminate the sound and light alarm generated by the sound and light buzzer after a fault occurs in the battery system; specifically, the mute button (504) is a reset button.

[0057] The sound and light buzzer (505) is used to issue a sound and light alarm when a battery system failure occurs; specifically, in this embodiment, there are three sound and light buzzers (505), which are respectively used for low battery alarm, combustible gas detection alarm and BMS alarm.

[0058] The switch, battery meter, emergency stop button, mute button and sound and light buzzer are all connected to the busbar high-voltage box through a low-voltage wiring harness, and the battery management system in the busbar high-voltage box issues a control detection status or gives a control instruction.

[0059] It should also be noted that in this specification, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bracket-type small low-voltage electric marine battery system, characterized in that: Including battery rack, several battery boxes, high voltage bus box, charging box and operation box; The battery rack is composed of a plurality of unit spaces for placing battery boxes; The battery boxes are connected in series and in parallel to form a battery pack with a certain voltage level and capacity; The confluence high-voltage box is installed on one side of the battery rack and is provided with an output power interface, an input power interface, an input communication interface, an output communication interface, a charging power interface and a charging communication interface; The output power interface is connected to the load on the ship; the input power interface is electrically connected to a plurality of battery boxes; the input communication interface is communicatively connected to a plurality of battery boxes; the output communication interface is communicatively connected to the operation box; the number of the input power interfaces is equal to or greater than the number of battery boxes; the number of the output power interfaces is equal to or greater than the number of loads; The charging box is installed on the hull and connected to the charging power interface and the charging communication interface of the converging high-voltage box through a connecting harness; The operation box is installed in the ship's control room; The busbar high-voltage box includes a relay, a fuse, a battery management system, a current sensor, an LCD display screen, a pre-charging group, and internal copper bars and wiring harnesses.

2. A bracket-type small low-voltage electric marine battery system as claimed in claim 1, characterized in that: The unit space is composed of a unit cross beam and a unit vertical beam, and the unit cross beam and the unit vertical beam are connected by bolts; The unit spaces are stacked vertically and / or horizontally to form a battery rack; The unit cross beams and unit vertical beams are provided with limiting grooves and bolt connection holes, and the stacked unit spaces are connected by bolts.

3. A bracket-type small low-voltage electric marine battery system as claimed in claim 1, characterized in that: The battery box comprises a battery box body and a battery cell; the battery cell is installed inside the battery box body; The battery box body includes two battery box power interfaces and one battery box communication interface; one battery box power interface is a total positive battery box power interface, and the other battery box power interface is a total negative battery box power interface; The power interface of the battery box is internally connected to the battery monomer and externally electrically connected to the input power interface of the converging high-voltage box; The battery box communication interface is internally connected to the battery management system of the battery cell, and externally connected to the input communication interface of the busbar high-voltage box.

4. A bracket-type small low-voltage electric marine battery system as claimed in claim 3, characterized in that: The battery monomer is a marine lithium iron phosphate battery; the material of the battery box is sheet metal or stainless steel; the battery box power interface is a DC power connector.

5. A bracket-type small low-voltage electric marine battery system as claimed in claim 1, characterized in that: The LCD display screen is installed on the surface of the busbar high-voltage box and is used to display the status of the battery system, including battery cell voltage and temperature, relay status, total voltage, current, SOC and fault information.

6. A bracket-type small low-voltage electric marine battery system as claimed in claim 1, characterized in that: The charging box is composed of a charging box shell and a charging socket, and the charging socket is fixed to the charging box shell by bolts; The charging socket adopts a national standard DC fast charging socket or a non-standard charging interface, one end of which is connected to the charger through a charging plug, and the other end is connected to the charging power interface and charging communication interface of the converging high-voltage box.

7. A small-sized low-voltage electric marine battery system as claimed in claim 1, characterized in that: The operation box is composed of a sheet metal shell and an operating component; The operating components include a switch, a battery meter, an emergency stop button, a mute button and an audible and visual buzzer; The switch is used to control the power on and power off of the battery system; The battery meter is used to display basic information of the battery system, including SOC, voltage and fault codes; The emergency stop button is used to cut off the battery system in an emergency; The mute button is used to manually confirm the fault state and eliminate the sound and light alarm generated by the sound and light buzzer after a fault occurs in the battery system; The sound and light buzzer is used to give a sound and light alarm when a battery system fails; The switch, battery meter, emergency stop button, mute button and sound and light buzzer are all connected to the junction high-voltage box through a low-voltage wiring harness, and the battery management system in the junction high-voltage box issues a control detection status or gives a control instruction.

8. A bracket-type small low-voltage electric marine battery system as claimed in claim 7, characterized in that: The switch is a push-button waterproof switch, and its color is green; The battery meter is a round battery meter; The color of the emergency stop button is red; The mute button is a reset button.

9. A bracket-type small low-voltage electric marine battery system as claimed in claim 8, characterized in that: The emergency stop button is provided with a protective cover.

10. A bracket-type small low-voltage electric marine battery system as claimed in claim 7, characterized in that: The number of the sound and light buzzers is three, which are used for low battery alarm, combustible gas detection alarm and BMS alarm respectively.

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