A noise reduction device for the engine room of a new energy ship

Abstract

This utility model relates to the field of noise reduction devices, and more particularly to a noise reduction device for the engine room of a new energy ship. The noise reduction shell has an internal installation chamber for installing battery packs. A cover is installed on the upper part of the noise reduction shell, and thin inserts are vertically installed at the bottom of the cover. The thin inserts are inserted into the gaps between each battery pack. Symmetrical limiting grooves are formed on both sides of the bottom of the thin inserts, and the bottom wall of the limiting grooves is fixedly connected to an arc-shaped rubber strip. The other end of the arc-shaped rubber strip is in contact with a rubber rebound block. In this utility model, the sound-absorbing structure in the inner layer of the noise reduction shell and cover effectively absorbs the noise generated by the internal components. Furthermore, multiple sets of thin inserts are provided at the bottom of the cover to fill the installation gaps between the battery packs, and a rubber buffer structure reduces possible displacement and collision between the battery packs, thereby effectively reducing noise generation and improving the noise reduction effect of the engine room.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction device technology, and in particular to a noise reduction device for the engine room of a new energy ship. Background Technology

[0002] New energy ships typically use electric propulsion systems, replacing the engines of traditional fuel-powered ships.

[0003] In existing technologies, because new energy ships can achieve lower operating noise compared to fuel-powered ships, some traditional new energy ships are generally not equipped with a complete noise reduction system. In actual use, passengers near the engine room can still hear high-frequency current noise or the humming sound of the transformer; or noise generated by the collision and contact between battery packs when the ship is sailing, which greatly reduces the riding experience. Therefore, there is an urgent need for a noise reduction device for the engine room of new energy ships. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a noise reduction device for the engine room of a new energy ship.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A noise reduction device for the engine room of a new energy ship includes a noise reduction housing. An installation chamber is provided inside the noise reduction housing for installing battery packs. A cover is installed on the upper part of the noise reduction housing. Thin inserts are vertically installed on the bottom of the cover. The thin inserts are inserted into the gaps between each battery pack. Limiting grooves are symmetrically opened on both sides of the bottom of the thin inserts. The bottom wall of the limiting groove is fixedly connected to an arc-shaped rubber strip. The other end of the arc-shaped rubber strip is in contact with a rubber rebound block.

[0007] In addition, a preferred structure is that the noise-reducing housing has a cavity inside, which is filled with rock wool, and a sound-absorbing plate is installed on the inner wall of the noise-reducing housing.

[0008] In addition, a preferred structure is that a rubber gasket is installed on the upper wall of the noise reduction housing, and when the noise reduction housing is connected to the cover, the cover and the rubber gasket are pressed into contact.

[0009] In addition, a preferred structure is that multiple sets of toothed rubber blocks are symmetrically installed at the bottom of the cover, and the bottom wall of the toothed rubber blocks is toothed.

[0010] Furthermore, in a preferred configuration, the upper end of the arc-shaped rubber strip is slidably mounted on the inner wall of the limiting groove, and an elastic sheet is embedded inside the arc-shaped rubber strip.

[0011] In addition, a preferred structure is that a rubber rebound block is fixedly installed on the top wall of the limiting groove, the rubber rebound block has multiple slots inside, the outer walls on both sides of the rubber rebound block are arc-shaped, and there is a gap between the outer walls on both sides of the rubber rebound block and the inner wall of the limiting groove.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, the sound-absorbing structure set in the inner layer of the noise-reducing shell and the cover can effectively absorb the noise generated by the internal components. In addition, the bottom of the cover is provided with multiple sets of thin inserts to fill the installation gap between the battery packs, and the rubber buffer structure reduces the displacement collision that may occur between the battery packs, thereby effectively reducing the noise generation and improving the noise reduction effect of the cabin. Attached Figure Description

[0014] Figure 1 An exploded view of the overall structure of a noise reduction device for the engine room of a new energy ship proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of the internal sandwich structure of the noise reduction shell proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the external structure of the cover body proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the thin insert proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the arc-shaped rubber strip structure proposed in this utility model;

[0019] Figure 6 This is a schematic diagram of the rubber rebound block structure proposed in this utility model.

[0020] In the diagram: 1. Noise-reducing shell; 11. Rock wool; 2. Sound-absorbing board; 3. Cover; 4. Thin insert; 41. Arc-shaped rubber strip; 411. Elastic sheet; 42. Rubber rebound block; 43. Limiting groove; 5. Rubber gasket; 6. Toothed rubber block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-6A noise reduction device for the engine room of a new energy ship includes a noise reduction housing 1. The interior of the noise reduction housing 1 has an installation chamber for installing battery packs. A cover 3 is installed on the upper part of the noise reduction housing 1. A thin insert 4 is vertically installed on the bottom of the cover 3. The thin insert 4 is inserted into the gap between each battery pack. Limiting grooves 43 are symmetrically opened on both sides of the bottom of the thin insert 4. The bottom wall of the limiting groove 43 is fixedly connected to an arc-shaped rubber strip 41. The other end of the arc-shaped rubber strip 41 is pressed into contact with a rubber rebound block 42.

[0023] The noise reduction housing 1 has a cavity inside, which is filled with rock wool 11, and a sound-absorbing plate 2 is installed on the inner wall of the noise reduction housing 1.

[0024] Rock wool 11 provides effective sound absorption;

[0025] The sound-absorbing panel 2 is specifically a perforated aluminum plate.

[0026] A rubber gasket 5 is installed on the upper wall of the noise reduction housing 1. When the noise reduction housing 1 is connected to the cover 3, the cover 3 and the rubber gasket 5 are pressed together, and the rubber gasket 5 increases the tightness of the connection and the buffering effect.

[0027] Multiple sets of toothed rubber blocks 6 are symmetrically installed on the bottom of the cover 3. The bottom wall of the toothed rubber blocks 6 is toothed. The toothed rubber blocks 6 press against the bottom of the battery pack, compressing the battery pack and providing an effective cushioning effect.

[0028] The upper end of the arc-shaped rubber strip 41 is slidably mounted on the inner wall of the limiting groove 43, and an elastic sheet 411 is embedded inside the arc-shaped rubber strip 41.

[0029] A rubber rebound block 42 is fixedly installed on the top wall of the limiting groove 43. The rubber rebound block 42 has multiple slots inside. The outer walls on both sides of the rubber rebound block 42 are arc-shaped, and there is a gap between the outer walls on both sides of the rubber rebound block 42 and the inner wall of the limiting groove 43.

[0030] The interior of the cover 3 is filled with rock wool 11.

[0031] In this embodiment, the noise-reducing housing 1 has two separate mounting chambers for installing the battery pack and its supporting components. The cover 3 is installed on the upper part of the noise-reducing housing 1 by fasteners. Multiple thin inserts 4 provided at the bottom of the cover 3 are inserted into the gaps between the battery packs to fill them. The arc-shaped rubber strips 41 provided on both sides of the thin inserts 4 are pressed into contact with the adjacent battery packs. The arc-shaped rubber strips 41 and the elastic sheet 411 are adaptively deformed to fit into the gaps. Then, the toothed rubber block 6 presses the edges of the battery packs to ensure installation stability.

[0032] In practical applications, the rock wool 11 and sound-absorbing plate 2 components installed in the cover 3 and noise-reducing shell 1 can effectively absorb noise.

[0033] When the ship is sailing, the displacement between the battery packs is absorbed and buffered by the deformation of the arc-shaped rubber strip 41. The arc-shaped rubber strip 41 deforms under force, becoming flattened and its upper end extends upward. The top of the arc-shaped rubber strip 41 presses against the bottom of the rubber rebound block 42. The rubber rebound block 42 deforms under force, and because its sides are arc-shaped, it is drum-shaped. When deformed under force, its overall structure flattens and shifts to both sides, causing it to squeeze into contact with the inner wall of the limiting groove 43. The relative force generated by the squeezing contact can effectively counteract the force generated by the displacement of the arc-shaped rubber strip 41 and drive the arc-shaped rubber strip 41 to rebound, thereby reducing the displacement between the battery packs and avoiding noise caused by collisions.

[0034] The specific installation method and circuit connection of the battery pack are common knowledge to those skilled in the art and will not be explained further.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new energy ship engine room noise reduction device, comprising a noise reduction shell (1), characterized in that, The noise reduction housing (1) has an installation chamber inside for installing battery packs. The upper part of the noise reduction housing (1) is covered with a cover (3). A thin insert (4) is vertically installed at the bottom of the cover (3). The thin insert (4) is inserted into the gap between each battery pack. The bottom sides of the thin insert (4) are symmetrically provided with limiting grooves (43). The bottom wall of the limiting groove (43) is fixedly connected to the arc-shaped rubber strip (41). The other end of the arc-shaped rubber strip (41) is pressed into contact with the rubber rebound block (42).

2. The noise reduction device of a new energy ship engine room according to claim 1, characterized in that, The noise reduction housing (1) has a cavity inside, which is filled with rock wool (11), and a sound-absorbing plate (2) is installed on the inner wall of the noise reduction housing (1).

3. The noise reduction device of a new energy ship engine room according to claim 1, characterized in that, The upper wall of the noise reduction housing (1) is equipped with a rubber gasket (5). When the noise reduction housing (1) is connected to the cover (3), the cover (3) and the rubber gasket (5) are pressed together.

4. The noise reduction device of a new energy ship engine room according to claim 1, characterized in that, Multiple sets of toothed rubber blocks (6) are symmetrically installed at the bottom of the cover (3), and the bottom wall of the toothed rubber blocks (6) is toothed.

5. The noise reduction device of a new energy ship engine room according to claim 1, characterized in that, The upper end of the arc-shaped rubber strip (41) is slidably mounted on the inner wall of the limiting groove (43), and an elastic sheet (411) is embedded inside the arc-shaped rubber strip (41).

6. The noise reduction device of a new energy ship engine room according to claim 1, characterized in that, A rubber rebound block (42) is fixedly installed on the top wall of the limiting groove (43). The rubber rebound block (42) has multiple slots inside. The outer walls on both sides of the rubber rebound block (42) are arc-shaped, and there is a gap between the outer walls on both sides of the rubber rebound block (42) and the inner wall of the limiting groove (43).

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