Closed sound insulation cabin

Abstract

The utility model provides a closed sound insulation cabin which can meet the noise reduction function of a light unmanned platform power system (a single-cylinder gasoline engine). The closed sound-proof cabin comprises a sound-proof cabin framework and a sound-proof cabin plate, the sound insulation cabin plate is installed on the outer surface of the sound insulation cabin framework and used for sealing the sound insulation cabin framework to enable the sound insulation cabin framework to form a sealed cabin body. The sound insulation cabin plate comprises a cabin plate body and a high-temperature-resistant sound insulation plate arranged on one side face of the cabin plate body, and the side, provided with the high-temperature-resistant sound insulation plate, of the sound insulation cabin plate faces the interior of the sound insulation cabin.

Description

Technical Field

[0001] The utility model relates to a sound insulation cabin, in particular to a closed sound insulation cabin, and belongs to the technical field of unmanned platforms. Background Art

[0002] As unmanned platforms pay more attention to NVH (noise, vibration and harshness) performance, the vibration and noise problems of the power system are becoming increasingly prominent. How to design a closed soundproof cabin with light weight and compact space to achieve the noise reduction function of the unmanned platform power system is a very urgent problem that needs to be solved for technicians in this technical field. Utility Model Content

[0003] In view of this, the utility model provides a closed soundproof cabin, which can meet the noise reduction function of the light unmanned platform power system (single-cylinder gasoline engine) and has a simple and light structure.

[0004] A closed soundproof cabin, comprising: a soundproof cabin frame and a soundproof cabin board; the soundproof cabin board is installed on the outer surface of the soundproof cabin frame and is used to close the soundproof cabin frame to form a closed cabin body;

[0005] The sound insulation cabin comprises a cabin body and a high temperature resistant sound insulation board arranged on one side of the cabin body, and the side of the sound insulation cabin having the high temperature resistant sound insulation board faces the inside of the sound insulation cabin.

[0006] As a preferred embodiment of the present invention: the sound insulation cabin board also includes a gasket; the gasket is a hollow structure whose shape matches the shape of the cabin board body, and the high temperature resistant sound insulation board is installed in the hollow frame thereof; the gasket with the high temperature resistant sound insulation board is fixed on the cabin board body.

[0007] As a preferred embodiment of the present invention: the cabin plate body is an aluminum alloy plate, and the high temperature resistant sound insulation plate is a melamine foam plate.

[0008] As a preferred embodiment of the present invention: the sound insulation cabin frame is a "cage" structure formed by welding steel pipes.

[0009] As a preferred embodiment of the present invention: the sound insulation cabin skeleton structure includes an upper trapezoidal structure, a middle rectangular structure and a lower inverted trapezoidal structure;

[0010] The sound insulation cabin panel includes an upper sound insulation board, a front upper sound insulation board, a front lower sound insulation board, a rear upper sound insulation board, a rear lower sound insulation board, a lower sound insulation board, two side upper sound insulation boards, two side middle sound insulation boards and two side lower sound insulation boards;

[0011] The upper sound insulation board is fixed to the upper end surface of the sound insulation cabin frame;

[0012] The lower sound insulation board is fixed to the lower end surface of the sound insulation cabin frame;

[0013] The lower part of the front end surface of the sound insulation cabin frame is provided with a cross bar, which divides the front end surface into upper and lower parts, which are respectively closed by a front upper sound insulation board and a front lower sound insulation board;

[0014] The middle part of the rear end face of the sound insulation cabin frame is provided with a cross bar, which divides the rear end face into upper and lower parts, which are respectively closed by an upper sound insulation board and a rear lower sound insulation;

[0015] The upper side sound insulation board, the middle side sound insulation board, and the lower side sound insulation board are respectively fixed on the side surfaces of the sound insulation cabin frame from top to bottom;

[0016] The sound insulation cabin frame is thus surrounded to form a closed structure.

[0017] As a preferred embodiment of the utility model: the front upper sound insulation board is provided with pipeline through holes; the rear upper sound insulation board is provided with power system exhaust holes; and the upper sound insulation board is provided with power system air intake holes.

[0018] As a preferred embodiment of the present invention: the sound insulation cabin frame is formed by butting two upper and lower parts.

[0019] Beneficial effects:

[0020] (1) In the soundproof cabin of the utility model, i.e., the power cabin, a soundproof cabin board is laid on the outside of the soundproof cabin frame. The structure is simple and can meet the noise reduction function of the light unmanned platform power system (single-cylinder gasoline engine).

[0021] (2) In the soundproof cabin of the utility model, the outer panel of the soundproof board is made of thin-walled lightweight aluminum alloy material, which is light in weight. An open-pore melamine foam plastic board is arranged on the inner side of the soundproof cabin board as a high-temperature resistant soundproof board; the melamine foam plastic board has excellent flame retardancy and can withstand temperatures of -150°C to 150°C, adapting to the high temperature environment in the power cabin; and the melamine foam plastic board has good sound absorption performance and can effectively reduce the noise of the power system.

[0022] (3) The high temperature resistant sound insulation board is installed on the cabin body through the gasket. The gasket is elastic and can absorb the gap and ensure sealing to a certain extent.

[0023] (4) The soundproof cabin of the utility model has an empty soundproof cabin frame formed by connecting the upper and lower parts, which has the advantage of easy installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front axonometric view of the overall structure of the closed soundproof cabin of the utility model;

[0025] Figure 2It is a rear axonometric view of the overall structure of the closed soundproof cabin of the utility model;

[0026] Figure 3 This is a skeleton diagram of the soundproof cabin of the utility model;

[0027] Figure 4 This is a diagram of the sound insulation board composition.

[0028] Among them: 1-front lower sound insulation board; 2-front upper sound insulation board; 21-pipe perforation, 3-upper sound insulation board, 31-air inlet hole; 4-rear upper sound insulation board, 41-exhaust hole; 5-rear lower sound insulation board; 6-side upper sound insulation board; 7-side middle sound insulation board; 8-side lower sound insulation board; 9-cabin body, 10-gasket, 11-high temperature resistant sound insulation board. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] This embodiment provides a closed soundproof cabin, which serves as a power cabin of an unmanned platform and has good sound absorption performance, and can effectively reduce the noise of the power system of the light unmanned platform.

[0031] like Figure 1 and Figure 2 As shown, the closed soundproof cabin includes a soundproof cabin frame and a soundproof cabin board; the soundproof cabin board is a structural board installed on the outer surface of the soundproof cabin frame and used to close the soundproof cabin frame to form a closed cabin body.

[0032] As an example, the sound insulation cabin frame is a "cage"-shaped structure made of welded steel pipes, and the sound insulation cabin frame can be split into two parts, that is, formed by connecting the upper and lower parts, to facilitate the installation and maintenance of the power cabin.

[0033] As an example, Figure 3 As shown, the soundproof cabin skeleton external structure includes an upper trapezoidal structure, a middle rectangular structure and a lower inverted trapezoidal structure; based on this, the top and bottom surfaces of the soundproof cabin skeleton are both rectangular frames, and the left and right sides are, from top to bottom, an outwardly inclined rectangular frame, a vertical rectangular frame and an inwardly inclined rectangular frame.

[0034] Based on the sound insulation cabin frame of the above structural form, the sound insulation cabin panels include a front lower sound insulation board 1, a front upper sound insulation board 2, an upper sound insulation board 3, a rear upper sound insulation board 4, a rear lower sound insulation board 5, a lower sound insulation board, two side upper sound insulation boards 6, two side middle sound insulation boards 7 and two side lower sound insulation boards 8; thereby, the sound insulation cabin frame is surrounded into a closed structure.

[0035] The upper sound insulation board 3 is fixed to the upper end surface of the sound insulation cabin frame by bolts; the upper sound insulation board 3 has a power system air intake hole 31 for connecting to an external air intake unit. The lower sound insulation board is fixed to the lower end surface of the sound insulation cabin frame.

[0036] The lower part of the rear end face of the soundproof cabin frame is provided with a cross bar, which divides its front end face into upper and lower parts, which are respectively closed by the front upper soundproof board 2 and the front lower soundproof board 1. The front upper soundproof board 2 and the front lower soundproof board 1 are fixed to the front end face of the soundproof cabin frame by bolts, wherein the front lower soundproof board 1 is an inverted trapezoidal board, which is used to close the front end face of the inverted trapezoidal structure of the lower part of the soundproof cabin frame, and the front end faces of the upper trapezoidal structure and the middle rectangular structure are closed by the front upper soundproof board 2. There is a pipeline through hole 21 on the front upper soundproof board 2, which is used to allow the pipeline to pass through and enter the soundproof cabin.

[0037] The middle part of the rear end face of the soundproof cabin frame is provided with a cross bar, which divides the rear end face into upper and lower parts, which are respectively closed by the rear upper soundproof board 4 and the rear lower soundproof board 5. The rear upper soundproof board 4 and the rear lower soundproof board 5 are fixed to the rear end face of the soundproof cabin frame by bolts. The rear upper soundproof board 4 is provided with a power system exhaust hole 41.

[0038] The upper side sound insulation board 6 is connected to the rectangular frame with the side inclined outward in the sound insulation cabin frame by bolts, the middle side sound insulation board 7 is connected to the vertical rectangular frame with the side in the sound insulation cabin frame by bolts, and the lower side sound insulation board 8 is connected to the rectangular frame with the side inclined inward in the sound insulation cabin frame by bolts.

[0039] As an example, Figure 4 As shown, the sound insulation cabin includes a cabin body 9, a gasket 10 and a high temperature resistant sound insulation board 11; wherein the gasket 10 is a hollow structure whose shape matches the shape of the cabin body 9, and the high temperature resistant sound insulation board 11 is installed in the hollow frame thereof, and then the gasket 10 with the high temperature resistant sound insulation board 11 is fixed on the cabin body 9; during installation, the side of the sound insulation cabin with the high temperature resistant sound insulation board 11 faces the interior of the sound insulation cabin.

[0040] In this example, the cabin panel body 9 is a 2mm thick thin-walled 6061T6 aluminum alloy plate, and the high temperature resistant sound insulation board 11 is a melamine foam board. The melamine foam plastic board has good flame retardancy and can withstand temperatures of -150°C to 150°C, adapting to the high temperature environment in the power cabin; the melamine foam plastic board is 30mm thick and has a surface density of 250g / m 2 The flat plate has a sound absorption coefficient α of up to 0.7, has good sound absorption performance, and can effectively reduce the noise of the power system. The gasket 10 is an EPDM gasket, which has elasticity, can absorb the gap, and ensure sealing to a certain extent.

[0041] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A closed soundproof cabin, characterized in that: It comprises a soundproof cabin frame and a soundproof cabin board; the soundproof cabin board is installed on the outer surface of the soundproof cabin frame and is used to close the soundproof cabin frame to form a closed cabin body; The sound insulation cabin comprises a cabin body and a high temperature resistant sound insulation board arranged on one side of the cabin body, and the side of the sound insulation cabin having the high temperature resistant sound insulation board faces the inside of the sound insulation cabin.

2. The closed soundproof cabin according to claim 1, characterized in that: The sound insulation cabin also includes a gasket; the gasket is a hollow structure whose shape matches the shape of the cabin body, and the high temperature resistant sound insulation board is installed in the hollow frame thereof; the gasket with the high temperature resistant sound insulation board is fixed on the cabin body.

3. The closed soundproof cabin according to claim 1 or 2, characterized in that: The cabin plate body is an aluminum alloy plate, and the high temperature resistant sound insulation plate is a melamine foam plate.

4. The closed soundproof cabin according to claim 1 or 2, characterized in that: The soundproof cabin frame is a cage-shaped structure formed by welding steel pipes.

5. The closed soundproof cabin according to claim 4, characterized in that: The soundproof cabin skeleton structure includes an upper trapezoidal structure, a middle rectangular structure and a lower inverted trapezoidal structure; The sound insulation cabin panel includes an upper sound insulation board, a front upper sound insulation board, a front lower sound insulation board, a rear upper sound insulation board, a rear lower sound insulation board, a lower sound insulation board, two side upper sound insulation boards, two side middle sound insulation boards and two side lower sound insulation boards; The upper sound insulation board is fixed to the upper end surface of the sound insulation cabin frame; The lower sound insulation board is fixed to the lower end surface of the sound insulation cabin frame; The lower part of the front end surface of the sound insulation cabin frame is provided with a cross bar, which divides the front end surface into upper and lower parts, which are respectively closed by a front upper sound insulation board and a front lower sound insulation board; The middle part of the rear end face of the sound insulation cabin frame is provided with a cross bar, which divides the rear end face into upper and lower parts, which are respectively closed by an upper sound insulation board and a rear lower sound insulation; The upper side sound insulation board, the middle side sound insulation board, and the lower side sound insulation board are respectively fixed on the side surfaces of the sound insulation cabin frame from top to bottom; The sound insulation cabin frame is thus surrounded to form a closed structure.

6. The closed soundproof cabin according to claim 5, characterized in that: The front upper sound insulation plate is provided with pipeline through holes; the rear upper sound insulation plate is provided with power system exhaust holes; and the upper sound insulation plate is provided with power system air intake holes.

7. The closed soundproof cabin according to claim 1 or 2, characterized in that: The soundproof cabin frame is formed by butting the upper and lower parts together.

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