KR102643296B1 - Battery rack unit for marine hybrid propulsion - Google Patents

Abstract

The present invention relates to a battery rack device for a marine hybrid propulsion engine. More specifically, the present invention relates to a battery rack device for a marine hybrid propulsion engine. More specifically, a large-capacity battery can be conveniently installed in the engine room without space restrictions, effectively dissipating heat generated from the battery, and dissipating off-gas generated from the battery. This relates to a battery rack device for marine hybrid propulsion that can immediately detect and ensure battery safety.
This invention is provided in the engine room of a ship, supplies electric energy to the ship's hybrid propulsion device, and is designed to simultaneously load a plurality of battery modules consisting of battery cells and cooling channels, and a battery management module that integrates and manages the battery modules. As a result, the first accommodating space in which the battery management module is accommodated in a sliding manner by a plurality of vertical supports and a plurality of square pipe rails that connect the vertical supports horizontally while forming multiple layers at regular intervals above and below, and the battery module slides. A frame dividing each of the second receiving spaces, each accommodated in such a way; A casing surrounding the top, rear, and both sides of the frame; It is installed at the rear end of the frame in the space between the rear of the battery module and the casing, and a communication port communicating with the gas outlet of the battery module is formed on one side, and an exhaust port communicating with the outside is formed on the other side of the battery module. An exhaust duct that discharges off-gas due to overcharging to the outside; And a circulation supply pipe installed on the frame and circulating a cooling medium to the cooling channel. The technical gist is a battery rack device for a marine hybrid propulsion machine, characterized in that it consists of.

Description

Battery rack unit for marine hybrid propulsion}

The present invention relates to a battery rack device for a ship's hybrid propeller that supplies electric energy to the propulsion motor and generates electricity from the propulsion motor.

Recently, in order to protect the environment and reduce environmental pollution, ships have also been applying a hybrid propulsion system that uses the propulsion generated from fuel engines when propulsion at high speeds and the propulsion generated from propulsion motors when propulsion at low speeds.

These marine hybrid propulsion systems include a fuel engine that uses fuel to generate propulsion, a propulsion motor that generates propulsion using electrical energy or electric energy using the propulsion of a fuel engine, and a storage of the electrical energy generated by the propulsion motor. It consists of a gearbox that connects the output shaft of the battery and fuel engine and the output shaft of the propulsion motor to the propulsion shaft to which the propeller is connected.

Meanwhile, marine hybrid propulsion systems are not only being applied to new ships, but also to existing ships that have a long life remaining, excluding old ships.

In other words, the hybrid propulsion system is being applied to existing ships by changing the fuel engine propulsion system applied to existing ships to a hybrid propulsion system by additionally installing propulsion motors, gearboxes, and batteries.

However, there are many difficulties in converting existing ships to a hybrid propulsion system by installing additional propulsion motors, gearboxes, and batteries in the engine room.

In particular, the battery must store a large amount of electrical energy generated by the propulsion motor and supply a large amount of stored electrical energy to the propulsion motor, so it inevitably requires a relatively large capacity. Therefore, the volume and weight corresponding to the large capacity require a lot of installation time. It is causing difficulties.

In addition, batteries generate a significant amount of heat when storing or supplying electrical energy, so cooling facilities must be separately provided, making it difficult to select and apply cooling facilities. Additionally, the increase in volume and weight due to the addition of cooling facilities also requires installation. It is causing many difficulties.

In addition, batteries can release off-gas to the outside when pressure increases due to internal overheating. If off-gas is not detected early, thermal runaway occurs in the battery, causing a fire accident.

Therefore, it is a battery rack for marine hybrid propulsion that can conveniently install a large capacity battery in the engine room without space constraints and can effectively cool the heat generated from the battery while ensuring the safety of the battery by early detection of off-gases in the battery. Development of the device is necessary.

Republic of Korea Patent Publication No. 10-2007666, announced on August 6, 2019. Republic of Korea Patent Publication No. 10-2327389, announced on November 16, 2021.

The present invention was invented to solve the above-mentioned problems. It allows a large-capacity battery to be conveniently installed in the engine room without space restrictions, effectively dissipates heat generated from the battery, and immediately detects off-gas generated from the battery. To ensure the safety of the battery, the battery pack can be mounted in a drawer style, cooling equipment is provided to cool the battery pack, and safety means are installed to detect off-gases generated from the battery bag and stop charging and discharging of the battery pack. The purpose is to provide a battery rack device for marine hybrid propulsion.

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned can be clearly understood from the description below and can be fully included in the object of the present invention.

The battery rack device for a marine hybrid propulsion according to the present invention for achieving the above object is provided in the engine room of a ship, and includes a plurality of battery modules that supply electric energy to the marine hybrid propulsion and consisting of battery cells and cooling channels, and the battery. It is intended to simultaneously load a battery management module that integrates and manages modules, and the battery management module is slid by a plurality of vertical supports and a plurality of square tube rails that connect the vertical supports horizontally in multiple layers at regular intervals above and below. A frame dividing the first accommodating space into a second accommodating space where the battery modules are accommodated in a sliding manner, respectively; A casing surrounding the top, rear, and both sides of the frame; It is installed at the rear end of the frame in the space between the rear of the battery module and the casing, and a communication port communicating with the gas outlet of the battery module is formed on one side, and an exhaust port communicating with the outside is formed on the other side of the battery module. An exhaust duct that discharges off-gas due to overcharging to the outside; and a circulation supply pipe that is installed in the frame and circulates and supplies a cooling medium to the cooling channel.

The battery rack device for a marine hybrid propulsion according to the present invention with the above configuration can expect the following effects.

First, the frame is provided with a plurality of receiving spaces with a drawer-type structure, so that the battery management module and a plurality of battery modules can be easily accommodated in each receiving space by sliding, so that they can be easily installed inside the engine room without space restrictions.

In addition, an exhaust duct is provided that communicates with the gas outlet of the battery module accommodated in each accommodation space, so that off-gas generated by overcharging of the battery module can be discharged and detected to the outside, thereby preventing explosion and fire accidents of the battery module. there is.

In addition, a circulation supply pipe is provided to circulate the cooling medium to the cooling channel of the battery module accommodated in each accommodation space, effectively cooling the heat generated during charging and discharging of the battery module, allowing the battery module to be used safely and efficiently.

Figure 1 is a front perspective view showing a battery rack device for a marine hybrid propulsion according to a preferred embodiment of the present invention.
Figure 2 is a rear perspective view showing a battery rack device for a marine hybrid propulsion engine according to a preferred embodiment of the present invention.
Figure 3 is a front perspective view showing a state in which part of the gating of the battery rack device for a marine hybrid propulsion device according to a preferred embodiment of the present invention is opened.
Figure 4 is a plan view showing a state in which part of the gating of the battery rack device for a marine hybrid propulsion device according to a preferred embodiment of the present invention is opened.
Figure 5 is a rear perspective view showing a state in which part of the gating of the battery rack device for a marine hybrid propulsion device according to a preferred embodiment of the present invention is opened.
Figure 6 is an exemplary diagram showing the connection state of the circulation supply pipe and exhaust duct of the battery rack device for a marine hybrid propulsion device with external devices according to a preferred embodiment of the present invention.

The present invention relates to a battery rack device for a ship's hybrid propulsion machine for accommodating a plurality of battery packs that supply electric energy to the propulsion motor or store the electric energy generated by the propulsion motor according to two propulsion methods in the ship's hybrid propulsion machine. .

In particular, the battery rack device for a marine hybrid propulsion according to the present invention can conveniently install a large capacity battery in the engine room without space restrictions, effectively dissipates heat generated from the battery, and immediately detects off-gas generated from the battery. The feature is that it ensures the safety of the battery.

These features can be achieved by installing the battery pack in a drawer type, providing cooling equipment to cool the battery pack, and installing safety means to detect off-gases generated from the battery bag and stop charging and discharging of the battery pack. .

Hereinafter, the battery rack device for a marine hybrid propulsion device according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

The battery rack device for a marine hybrid propulsion according to a preferred embodiment of the present invention is provided in the engine room of a ship and includes a plurality of battery modules (B) that store electrical energy and a battery management module (M) that integrates and manages the battery modules (B). It is intended to load simultaneously, and may be composed of a frame 10, a casing 20, an exhaust duct 30, and a circulation supply pipe 40, as shown in FIGS. 1 to 5.

First, the frame 10 has a plurality of vertical supports 11 and square tube rails 12 connected to each other, so that a first receiving space 13 and a second receiving space 14 can be formed at the upper and lower parts, respectively. .

For this purpose, the vertical supports 11 may be installed vertically and spaced apart from each other on the left and right sides of the front end and the left and right sides of the rear end, respectively.

In addition, the square tube rails (12) are arranged side by side in the front and rear directions on the left and right sides, respectively, and the front end is connected to the vertical support 11 installed on the left side of the front end and the left side of the rear end, respectively, and the rear end is a vertical rail installed on the right side of the front end and the right side of the rear end, respectively. It can be connected to the support (11).

However, the square tube rails 12 may be connected to the vertical support 11 while being spaced apart from each other along the vertical direction, which is the longitudinal direction of the vertical support 11.

That is, the frame 10 can be divided into upper and lower multi-layers with a plurality of accommodation spaces along the boundary according to the position of the square tube rail 12 due to the structure and shape of the square tube rail 12 connected to the vertical support 11.

At this time, the battery management module (M) can be accommodated in the first accommodating space 13, which is an accommodating space partitioned on the highest floor among the plurality of accommodating spaces, and the second accommodating space is a plurality of accommodating spaces partitioned on the remaining floors except the top floor. A battery module (B) can be accommodated in (14).

And the battery management module (M) and the battery module (B) can be accommodated in the first accommodating space (13) and the second accommodating space (14) in a sliding manner along the upper surface of the square tube rail (12), respectively.

In addition, a stopper 121 protruding upward is installed on the upper surface of the front end of the square tube rail 12 to limit the sliding distance between the battery management module (S) and the battery module (B) to create a space between the first receiving space (13) and the second receiving space (13). Each can be accommodated at a designated location in the accommodation space 14.

In other words, not only can a plurality of battery modules (B) be easily accommodated in a drawer-type structure at each designated location, but the battery management module (M) for integrated management of the battery modules (B) can also be easily accommodated in a drawer-type structure at a designated location. can do.

Meanwhile, the battery module (B) is installed integrally with a hexahedral battery cell (C) on top of the battery cell (C) and includes a cooling channel ( C) may be configured.

In addition, the rear part of the battery cell (C) is provided with a gas outlet (G) through which off-gas that may occur due to overcharging is discharged, and an inlet (I) through which the cooling medium flows is provided on one side and the other side of the front part of the cooling channel (N). An outlet (O) through which the cooling medium flows may be installed, respectively.

Next, the casing 20 is installed to surround the top, rear, and both sides of the frame 10, and includes a battery management module (S) accommodated in the first and second accommodating spaces (13) and the second accommodating space (14), respectively. Except for the front part of the battery module (B), the remaining part can be protected from being exposed to the outside.

For this purpose, the casing 20 is composed of a top plate 21, a back plate 22, and a side plate 23, and can be installed on the top, rear, and both sides of the frame 10, respectively.

In addition, the back plate 22 and the side plate 23 can be integrally connected to the frame 10 while being fixed to the outer surface of the vertical support 11, and the top plate 21 is fixed to the top of the back plate 22 and the side plate 23. As a result, it can be integrally connected to the frame 10.

Next, the exhaust duct 30 is installed vertically up and down in the space between the frame 10 and the casing 20 in the middle of the rear end of the frame 10 to prevent overcharging from occurring during the charging operation of the battery module B. Potential off gas can be discharged to the outside.

For this purpose, the exhaust duct 30 is closed on the upper and lower surfaces and on both sides, and has a communication port (not shown) communicating with the gas outlet (G) of the battery module (B) each accommodated in the second accommodation space (14) at the front. It may have a rectangular cylindrical body shape with an exhaust port 31 formed at the upper rear portion that communicates with the outside.

Here, the exhaust duct 30 can be installed in a fixed position without moving in the space between the frame 10 and the casing 20 by the fixing bracket 32, the connecting plate 33, and the support pipe 34.

That is, the fixing bracket 32 may be connected to the upper and lower ends of the exhaust duct 30, and both ends may be fixed to the inner surface of the casing 20, respectively.

In addition, the connection plate 33 can be fixed to both sides of the exhaust duct 30, and the support pipe 34 has a thickness corresponding to the separation space and is fixed to the outer surface of the connection plate 33, and has one side and the other side. It can be in close contact with the back of the battery module (B) and the rear plate (22) of the casing (30), respectively.

Meanwhile, as shown in FIG. 6, an exhaust hose 35 may be connected to the end of the exhaust port 31 of the exhaust duct 30, and a blower 36 may be connected to the end of the exhaust hose 35. Additionally, a detection sensor 37 may be installed on the exhaust hose 35 to detect off-gas flowing out of the exhaust hose 35 through the exhaust port 31.

At this time, when the detection sensor 37 detects an off signal generated from the battery module (B) and flowing out to the exhaust hose 35 through the exhaust duct 30, the battery management module ( By transmitting a detection signal to M), safety accidents can be prevented in advance.

Lastly, the circulation supply pipe 40 is installed in the frame 10 to circulate and supply the cooling medium to the cooling channel (C) of the battery module (B).

For this purpose, the circulation supply pipe 40 is composed of an individual supply hose 41, an individual recovery hose 42, a collective supply hose 43, a collective recovery hose 44, a supply pipe 45, and a recovery pipe 46. You can.

Here, the individual supply hoses 41 have one end connected to the inlet (I) of the cooling channel (N) and penetrate the square pipe rails (12) arranged on the left, respectively, so that the other ends can be exposed to the rear end of the frame (10). One end of the individual recovery hose 42 is connected to the outlet O of the cooling channel N, and each end passes through the square pipe rail 12 disposed on the right side, and the other end is exposed to the rear end of the frame 10. You can.

And the collective supply hose 43 sequentially connects the other ends of the individual supply hoses 41 through the connection port 431, and the end can be exposed to the first receiving space 13, and the collective recovery hose 44 is connected to the connection port 431. The other ends of the individual recovery hoses 42 can be sequentially connected through 441 and the ends can be exposed to the first receiving space 13.

In addition, the supply pipe 45 is installed in the first receiving space 13 and is bent so that one end, which is the inlet, and the other end, which is the outlet, are located in the same direction. One end is connected to the end of the collective supply hose 43, and the other end is connected to the casing. It can be exposed to the outside by passing through, and the return pipe 46 is installed in the first receiving space 13 and has a bent shape so that one end, which is the inlet, and the other end, which is the outlet, are located in the same direction, and one end is a collective recovery hose ( 44), and the other end may penetrate the casing 20 and be exposed to the outside.

Meanwhile, the supply pipe 45 and the return pipe 46 may be connected to each other via a circulation hose 47, as shown in FIG. 6. At this time, a circulation pump 48 may be installed on the circulation hose 47 to pressurize the cooling medium and supply and recover it to the cooling channel (C). Additionally, a cooler 49 may be installed on the circulation hose 47 to cool the cooling medium by exchanging heat with seawater supplied from outside.

That is, according to the operation of the circulation pump (48), the cooling medium flows into the cooling channel (N) through the circulation hose (47), passes through the cooling channel (C), and then returns to the circulation hose (47). By being repeatedly cooled by the cooler 49 in the process, the battery cell (C) can be smoothly cooled by the cooling channel (N).

The above-described embodiments are merely illustrative, and various modifications thereof are possible for those skilled in the art.

Therefore, the true technical protection scope of the present invention should include not only the above embodiments but also other variously modified embodiments according to the technical spirit of the invention described in the claims below.

10: frame
11: Vertical support
12: Square pipe rail
121: stopper
13: First reception space
14: Second receiving space
20: Casing
21: top plate
22: back plate
23: side plate
30: exhaust duct
31: exhaust port
32: Fixing bracket
33: connection plate
34: Support angle pipe
35: exhaust hose
36: blower
37: Detection sensor
40: Circulation supply pipe
41: Individual supply hose
42: Individual recovery hose
43: Collective supply hose
431: Connection port
44: Assembly recovery hose
441: Connection port
45: supply pipe
46: recovery pipe
47: Circulating hose
48: Circulation pump
49: cooler
B: Battery module
C: battery cell
N: cooling channel
I: Inlet
O: outlet
M: Battery management module

Claims (5)

It is provided in the engine room of a ship and is intended to simultaneously load a plurality of battery modules that supply electric energy to the ship's hybrid propulsion system and consist of battery cells and cooling channels, and a battery management module that integrates and manages the battery modules.
A first receiving space in which the battery management module is accommodated in a sliding manner by a plurality of vertical supports and a plurality of square tube rails that horizontally connect the vertical supports at regular intervals above and below to form multiple layers, and the battery module is slidably accommodated. Frames dividing each second receiving space into which each space is accommodated;
A casing surrounding the top, rear, and both sides of the frame;
It is installed at the rear end of the frame in the space between the rear of the battery module and the casing, and a communication port communicating with the gas outlet of the battery module is formed on one side, and an exhaust port communicating with the outside is formed on the other side of the battery module. An exhaust duct that discharges off-gas due to overcharging to the outside; and
It consists of a circulation supply pipe installed on the frame and circulating a cooling medium to the cooling channel,
The exhaust duct is
A fixing bracket connected to the upper and lower ends of the exhaust duct and fixed to the inner surface of the casing, a connecting plate fixed to both sides of the exhaust duct, and a thickness corresponding to the separation space and fixed to the connecting plate. One side and the other side are supported in a fixed position by a support square tube in close contact with the rear of the battery module and the inner surface of the casing, respectively,
an exhaust hose connected to an end of the exhaust port;
A blower connected to the end of the exhaust hose; and
A detection sensor installed on the exhaust hose to detect the off gas and transmit a detection signal depending on whether it is detected to the battery management module to allow the battery management module to control the charging operation of the battery module; is included,
The circulation supply pipe is
Individual supply hoses, each of which has one end connected to the inlet of the cooling channel and each passing through the square pipe rail, the other end of which is exposed to the rear end of the frame, each end connected to the outlet of the cooling channel and facing the square pipe rail Individual recovery hoses that pass through each of the square pipe rails and have their other ends exposed to the rear end of the frame;
A collective supply hose in which the other ends of the individual supply hoses are sequentially connected and the end is exposed to the first receiving space, and a collective recovery hose in which the other ends of the individual recovery hoses are sequentially connected and the end is exposed to the first receiving space. and a supply pipe installed in the first receiving space, one end of which is connected to the end of the collective supply hose, and the other end having a bent shape so as to penetrate the casing and be exposed to the outside, and a supply pipe installed in the first receiving space, one end of which is connected to the end of the collective supply hose. A battery rack device for a marine hybrid propeller, characterized in that it consists of a recovery pipe connected to the end of the collective recovery hose and having a bent shape so that the other end penetrates the casing and is exposed to the outside. delete delete delete According to paragraph 1,
A circulation hose connecting the supply pipe and the recovery pipe;
A circulation pump installed on the circulation hose to pressurize and circulate the cooling medium; and
A cooler installed on the circulation hose to cool the cooling medium by exchanging heat with seawater supplied from the outside.

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