New energy automobile air conditioner refrigeration pipeline noise reduction structure

Abstract

The utility model discloses a new energy automobile air conditioner refrigeration pipeline silencing structure, which belongs to the technical field of automobile silencers, and comprises an outer shell, a protective structure is fixed outside the outer shell, a plurality of first partition plates and second partition plates are arranged in the outer shell at intervals, and the interior of the outer shell is divided into a plurality of silencing cavities by the first partition plates and the second partition plates. Penetrating holes are formed in the first partition plate and the second partition plate, the protection structure comprises two arc-shaped protection shells matched with the outer shell, sound insulation cotton is mounted on the inner walls of the two protection shells, and mounting lugs are mounted at the top ends and the bottom ends of the two protection shells; according to the silencer, the first partition plate and the second partition plate are arranged at intervals, the second partition plate is obliquely arranged, and the multiple silencing cavities are formed between the first partition plate and the second partition plate, so that airflow and noise can be reflected and absorbed in the silencing cavities for multiple times, the noise can be better treated, and the silencing effect on the air conditioner refrigeration pipeline is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile silencer, concretely relates to a new energy automobile air conditioner refrigeration pipeline sound attenuation structure. BACKGROUND

[0002] The automobile silencer is the special equipment of hindering sound propagation and letting airflow pass, preventing and treating airflow dynamic noise, and is used to reduce the noise parts produced by the engine of the motor vehicle during operation. Since the length difference of the two pipelines is equal to half of the wavelength of the sound wave emitted by the automobile, the two sound waves are weakened by mutual cancellation when superimposed, so that the sound intensity is reduced, thereby achieving the effect of sound attenuation.

[0003] The new energy automobile air conditioner produces certain noise during operation, which affects the experience of the user, so it is necessary to install a sound attenuation structure in the automobile air conditioner refrigeration pipeline. The existing automobile air conditioner sound attenuation structure mostly only sets a single sound attenuation cavity, and the airflow noise absorption and reflection are limited, the sound attenuation effect is not good, and the silencer installed at the air conditioner pipeline is mostly exposed outside, and the installation position is close to the inner wall of the automobile, which cannot well protect the sound attenuation structure. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a new energy automobile air conditioner refrigeration pipeline sound attenuation structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new energy automobile air conditioner refrigeration pipeline sound attenuation structure, which comprises an outer shell body with a protective structure fixed outside, a plurality of first partitions and second partitions are arranged in the outer shell body, and the inner part of the outer shell body is divided into a plurality of sound attenuation cavities by the first partitions and the second partitions, perforations are formed in the first partitions and the second partitions, the protective structure comprises two arc-shaped protective shells matched with the outer shell body, soundproof cotton is installed on the inner walls of the two protective shells, and mounting ears are installed on the top and bottom ends of the two protective shells.

[0006] Preferably, the outer shell body comprises an air inlet channel and an air outlet pipeline, and the air inlet channel and the air outlet pipeline are respectively installed at both ends of the outer shell body.

[0007] Preferably, a filter pipeline is installed on the air outlet pipeline, and a second mounting sheet is installed at one end of the air outlet opening of the air outlet pipeline.

[0008] Preferably, a plurality of pipelines and a third partition are further installed in the outer shell body, one of the pipelines is connected with the air inlet channel, and the other plurality of pipelines are installed between the adjacent two first partitions.

[0009] Preferably, first mounting sheets are installed at both ends of the outer shell body, and mounting holes are formed in the two first mounting sheets.

[0010] Preferably, a fixing hole is formed on each of the two mounting ears, and a fixing bolt is arranged through the two fixing holes.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] (1) The utility model discloses a first baffle and a second baffle are arranged at intervals, and the second baffle is arranged obliquely, multiple sound absorption cavities are formed between the first baffle and the second baffle, airflow and noise can be reflected and absorbed multiple times in the sound absorption cavities, noise can be better treated, and the sound absorption effect of the air conditioner refrigeration pipeline is better.

[0013] (2) The utility model discloses a protection structure, two protective shells are arranged outside the outer shell body, and are fixed and installed together through fixing bolts, and the inner wall of the protective shell is provided with sound insulation cotton, the sound insulation cotton is attached to the outer wall of the outer shell body, on the one hand, the sound absorption structure can be better protected, and on the other hand, noise can be insulated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is an internal structure view of the utility model;

[0016] Figure 3 It is a front view of the first baffle of the utility model;

[0017] Figure 4 It is a structural schematic view of the protection structure of the utility model.

[0018] In the drawing: 1-outer shell body;2-protective shell;3-mounting ear;4-air inlet channel;5-first mounting piece;6-second mounting piece;7-filter pipeline;8-air outlet pipeline;9-pipeline;10-first baffle;11-second baffle;12-third baffle;13-perforation;14-fixing bolt;15-sound insulation cotton. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4As shown, the utility model provides technical schemes as follows: A new energy automobile air conditioner refrigeration pipeline sound attenuation structure, including the shell body 1 of external fixed protection structure, a plurality of first baffle 10 and second baffle 11 are arranged at intervals in shell body 1, and the inside of shell body 1 is divided into a plurality of sound attenuation cavities by first baffle 10 and second baffle 11, and the perforation 13 is formed on first baffle 10 and second baffle 11, and the protection structure includes two arc-shaped protective shell 2 matched with the shell body 1, the inner wall of two protective shell 2 is equipped with sound insulation cotton 15, and the top and bottom of two protective shell 2 are equipped with mounting lug 3;

[0021] Shell body 1 includes air inlet channel 4 and air outlet pipeline 8, and air inlet channel 4 and air outlet pipeline 8 are installed at both ends of shell body 1 respectively.

[0022] Filter pipeline 7 is installed on air outlet pipeline 8, filter pipeline 7 can filter out impurities in airflow, and the air outlet end of air outlet pipeline 8 is equipped with second mounting sheet 6, and second mounting sheet 6 is used to fix air outlet pipeline 8 to avoid vibration of air outlet pipeline 8 when exhausting.

[0023] For the above, when using the new energy automobile air conditioner refrigeration pipeline sound attenuation structure, first install two protective shell 2 on the outside of shell body 1, so that sound insulation cotton 15 is tightly attached to shell body 1, which can better protect the sound attenuation structure, then install shell body 1 in new energy automobile, connect air inlet channel 4 with automobile air conditioner refrigeration pipeline, and enter sound attenuation cavity from air inlet channel 4, and reflect and absorb by first baffle 10 and second baffle 11, because a plurality of sound attenuation cavities are formed between first baffle and second baffle, so that airflow and noise can be reflected and absorbed multiple times in sound attenuation cavity, and discharged from air outlet pipeline 8 after processing.

[0024] Specifically, as shown in the figure, Figure 2 Shell body 1 is also equipped with a plurality of pipelines 9 and third baffles 12, one of which is connected to air inlet channel 4, and the other plurality of pipelines 9 are installed between adjacent two first baffles 10, noise airflow enters pipeline 9 from air inlet channel 4, and enters sound attenuation cavity from pipeline 9, a plurality of pipelines 9 are provided with small holes for airflow to pass through, and are discharged after being reflected and absorbed by first baffle 10 and second baffle 11, and third baffle 12 is not provided with holes for uniform discharge of airflow.

[0025] Preferably, as shown in the figure, Figure 1 In the utility model, first mounting sheet 5 is installed at both ends of shell body 1, mounting holes are formed on two first mounting sheets 5, and shell body 1 can be fixed by bolt passing through mounting hole when shell body 1 is installed in new energy automobile.

[0026] In addition, as shown in the figures, Figure 1 And Figure 4As shown in the utility model, two mounting ears 3 are provided with fixing holes, and a fixing bolt 14 penetrates between the two fixing holes, during installation, the fixing bolt 14 is penetrated through the fixing hole on the mounting ear 3, thereby mounting the two protective shells 2 together.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle air conditioning refrigeration pipeline silencer structure, characterized by: The invention comprises an outer shell (1) with a protective structure fixed on the outside, wherein a plurality of first partitions (10) and second partitions (11) are arranged at intervals inside the outer shell (1), and the interior of the outer shell (1) is divided into a plurality of silencer cavities by the first partitions (10) and the second partitions (11), and the first partitions (10) and the second partitions (11) are both provided with perforations (13), and the protective structure comprises two arc-shaped protective shells (2) matching the outer shell (1), the inner walls of the two protective shells (2) are both installed with sound insulation cotton (15), and the top and bottom ends of the two protective shells (2) are both installed with mounting ears (3).

2. A new energy vehicle air conditioning refrigeration pipeline silencer structure according to claim 1, characterized in that: The outer shell (1) comprises an air inlet channel (4) and an air outlet pipe (8), and the air inlet channel (4) and the air outlet pipe (8) are respectively installed at two ends of the outer shell (1).

3. The silencing structure of the air conditioning refrigeration pipeline of a new energy vehicle according to claim 2 is characterized in that: A filter pipe (7) is installed on the air outlet pipe (8), and a second installation piece (6) is installed at one end of the air outlet of the air outlet pipe (8).

4. The silencing structure for air conditioning refrigeration pipelines of new energy vehicles according to claim 2 is characterized in that: A plurality of pipes (9) and a third partition (12) are also installed in the outer shell (1), wherein one of the pipes (9) is connected to the air intake channel (4), and the other plurality of pipes (9) are installed between two adjacent first partitions (10).

5. The silencing structure of the air conditioning refrigeration pipeline of a new energy vehicle according to claim 1 is characterized in that: First mounting pieces (5) are installed at both ends of the outer shell (1), and mounting holes are provided on the two first mounting pieces (5).

6. The silencing structure of the air conditioning refrigeration pipeline of a new energy vehicle according to claim 1 is characterized by: The two mounting ears (3) are both provided with fixing holes, and a fixing bolt (14) passes through the two fixing holes.

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