CN218093351U - Silencer cover - Google Patents

Abstract

The utility model relates to a muffler lid relates to muffler technical field, and it includes lid body, division board, connection body, first amortization subassembly and second amortization subassembly. The utility model provides a muffler lid is through setting up amortization chamber, amortization passageway, first amortization subassembly and second amortization subassembly isotructure, the air current gets into after the muffler noise elimination first cavity gets into afterwards the amortization passageway and first amortization subassembly department carries out amortization once more, gets into afterwards the second cavity and second amortization subassembly department carries out amortization once more, later discharges the lid body, above-mentioned in-process, through twice amortization of muffler lid can further reduce the noise, the practical application of being convenient for.

Description

A muffler cover

technical field

The utility model relates to the technical field of mufflers, in particular to a cover body of a muffler.

Background technique

While household refrigerator appliances bring us convenience, they also bring us troubles. The impact of refrigerator unit equipment noise on the environment and the use of rooms has been paid attention to by everyone. Among them, the built-in compressor of the refrigerator is one of the main noise sources. In order to reduce the noise, a muffler is usually added to the piping of the compressor.

Patent CN107642481A discloses a refrigerator compressor silencer. The refrigerator compressor silencer involved in the invention is novel in design and simple in structure. It can effectively eliminate the noise inside the compressor. The problem of excessive amplitude caused by the uneven force on the inner surface of the silencer pipe section better achieves the noise reduction effect and avoids the resonance between the exhaust pipe and the compressor or other components. The silencer can not only eliminate noise and reduce vibration, but also The cooling capacity of the compressor can be obviously increased, the market prospect is excellent, and the market potential is huge.

However, the existing muffler cover cannot further silence the sound. Therefore, the utility model proposes a muffler cover.

Utility model content

Aiming at the state of the prior art, the utility model provides a muffler cover, which can effectively solve the problem that the muffler cover in the prior art cannot further silence the sound.

The utility model is realized through the following technical solutions:

The utility model provides a muffler cover, comprising:

A cover body, wherein a sound-absorbing cavity penetrating through the cover body is formed in the cover body.

a partition plate, the partition plate is arranged in the sound-absorbing cavity for separating the inside of the sound-absorbing cavity into a first cavity and a second cavity, and the first cavity is located at the side of the second cavity Below, the partition board is provided with a plurality of sound-absorbing passages.

A connection body, the connection body is sealed at one end of the cover body away from the second cavity, the connection body is provided with a connection channel communicating with the first cavity, and the connection body is used to communicate with the first cavity. The muffler is sealed and communicated.

A first noise reduction component, at least one of the noise reduction channels is provided with the first noise reduction component.

A second noise reduction component, the second noise reduction component is arranged in the second cavity.

Further, the first silencing assembly includes a connected connecting piece and a silencing piece, the connecting piece is formed with a communication channel, the silencing piece is formed with a plurality of silencing holes, the connecting piece is connected to one end of the silencing channel The detachable connection, the sound-absorbing channel communicates with the sound-absorbing hole through the communication channel.

Further, the connecting piece is threadedly connected to one end of the sound-absorbing channel.

Further, the connecting piece is plugged into one end of the noise reduction channel.

Further, the sound absorbing element is spherical in shape and made of foam material.

Further, the connection body and the cover body are integrally formed.

Further, the second sound-absorbing assembly includes a support frame and a sound-absorbing plate, the support is mounted on the inner wall of the cover body and corresponds to the second cavity, and the sound-absorbing plate is arranged on the support frame.

Further, the support frame includes two frame bodies arranged on the inner wall of the cover body and distributed oppositely, at least two clamping spaces are formed between the two frame bodies, and at least one of the clamping spaces is used for Clip the sound-absorbing plate.

Further, the sound attenuation board includes a first net board, a foam board and a second net board which are sequentially bonded and connected.

Further, a filter screen is provided on the inner wall of the cover body and corresponding to the first cavity.

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

The muffler cover provided by the utility model is provided with structures such as the muffler cavity, the muffler channel, the first muffler assembly and the second muffler assembly, and the airflow enters the first cavity after passing through the muffler to eliminate noise, and then enters the The sound attenuation passage is carried out again at the first sound attenuation assembly, and then enters the second cavity and at the second attenuation assembly for another sound attenuation, and then discharges the cover body. During the above process, through The two mufflers of the muffler cover can further reduce noise, which is convenient for practical application.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of an embodiment of a muffler cover provided by the present invention;

Fig. 2 is the three-dimensional structural schematic diagram II of an embodiment of the muffler cover body provided by the utility model;

Fig. 3 is a top view structural schematic diagram of the structure shown in Fig. 1;

Fig. 4 is a schematic diagram of a cross-sectional structure in the A-A direction in Fig. 3;

Fig. 5 is a schematic diagram of a partially enlarged structure of part B in Fig. 4;

FIG. 6 is a schematic diagram of a cross-sectional structure along the D-D direction in FIG. 5 .

Reference signs: 1. Cover body; 11. Silencer cavity; 111. First cavity; 112. Second cavity; 12. Filter screen; 2. Partition plate; 21. Silencer channel; 3. Connecting body; 31 . Connecting channel; 4. The first silencer assembly; 41. Connector; 411. Communication channel; 42. Silencer; 421. Silencer hole; 5. The second silencer assembly; , Noise reduction board.

detailed description

The preferred embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. The accompanying drawings constitute a part of the application and are used together with the embodiments of the utility model to illustrate the utility model, not to limit the utility model.

As shown in Figures 1 to 6, a muffler cover body includes:

The cover body 1 is formed with a sound-absorbing chamber 11 penetrating through the cover body 1 .

The partition plate 2, the partition plate 2 is arranged in the sound-absorbing cavity 11 for separating the inside of the sound-absorbing cavity 11 into a first cavity 111 and a second cavity 112, and the first cavity 111 is located in Below the second cavity 112 , the partition plate 2 is opened with a plurality of sound-absorbing passages 21 .

The connection body 3 is sealed at the end of the cover body 1 away from the second cavity 112, and the connection body 3 is provided with a connection channel 31 communicating with the first cavity 111. The connecting body 3 is used for sealing communication with the muffler.

The first silencer assembly 4 , at least one of the silencer passages 21 is provided with the first silencer assembly 4 .

The second noise reduction component 5 is disposed in the second cavity 112 .

The muffler cover provided by the utility model is provided with structures such as the muffler cavity 11, the muffler channel 21, the first muffler assembly 4 and the second muffler assembly 5, and the airflow enters the first chamber 111 after passing through the muffler to eliminate noise. , then enter the silencing passage 21 and perform silencing again at the first silencing assembly 4, then enter the second cavity 112 and perform silencing again at the second silencing assembly 5, and then discharge all Referring to the cover body 1, in the above process, the noise can be further reduced and eliminated through the two noise reduction of the muffler cover body, which is convenient for practical application.

Wherein, the first sound-absorbing assembly 4 and the second sound-absorbing assembly 5 can be structures made of sound-absorbing materials such as foam or sound-absorbing cotton; the first sound-absorbing assembly 4 can be arranged at the port or inside of the sound-absorbing passage 21, The above installation methods can further reduce noise, and the installation position of the first noise reduction component 4 can be set according to the actual situation; the second noise reduction component 5 is preferably a plate-shaped sound-absorbing structure, so as to facilitate assembly and disassembly in practical applications. .

In practical applications, the shape and size of the connecting body 3 can be designed and manufactured according to actual needs, so as to be able to connect mufflers of different specifications.

In order to further reduce noise and facilitate the assembly and disassembly of the first noise reduction assembly 4, the first noise reduction assembly 4 includes a connected connection piece 41 and a noise reduction piece 42, and the connection piece 41 is formed with a communication channel 411, so The muffler 42 is formed with a plurality of muffler holes 421 , the connector 41 is detachably connected to one end of the muffler passage 21 , and the muffler passage 21 communicates with the muffler holes 421 via the communicating passage 411 . The connecting piece 41 is threadedly connected to one end of the noise reduction channel 21 . The connecting piece 41 is plugged with one end of the noise reduction channel 21 . This design is convenient for the assembly and disassembly of the first noise reduction assembly 4, and the noise reduction channel 21 can be a straight or arc channel, the connecting piece 41 is arranged at the port of the noise reduction channel 21, and the noise reduction part 42 It is located outside the port of the muffler channel 21 .

In order to further reduce noise, the sound absorber 42 is spherical in shape and made of foam material. This design makes the sound absorption effect better.

In order to facilitate the manufacture and application of the muffler cover body, the connection body 3 and the cover body 1 are integrally formed. This design facilitates the production and manufacture of the muffler cover body, and is convenient for practical application.

In order to further reduce noise and facilitate the assembly and disassembly of the second noise reduction assembly 5, the second noise reduction assembly 5 includes a support frame 51 and a noise reduction plate 52. The support frame 51 is arranged on the inner wall of the cover body 1 and corresponds to In the second cavity 112 , the sound-absorbing plate 52 is disposed on the supporting frame 51 . The support frame 51 includes two frame bodies arranged on the inner wall of the cover body 1 and relatively distributed, at least two clamping spaces 511 are formed between the two frame bodies, and at least one of the clamping spaces 511 is used for The sound-absorbing plate 52 is clamped. The sound-absorbing board 52 includes a first mesh board, a foam board and a second mesh board that are sequentially bonded and connected. In practical applications, the clamping space 511 facing away from the first cavity 111 can be used to set a sound-absorbing plate 52 or a protective plate, which is designed to further reduce noise; the clamping space 511 facing away from the first cavity 111 The space 511 can be used to set a protective plate, so that the design can effectively prevent dust and mud, and is convenient for practical application.

In order to further reduce noise and prevent the noise reduction channel 21 from being blocked, a filter 12 is provided on the inner wall of the cover body 1 corresponding to the first cavity 111 . The airflow entering the first cavity 111 can be filtered through the filter 12 first, so as to avoid the blockage of the muffler channel 21 and further reduce noise.

Compared with the prior art, the muffler cover provided by the utility model has the following beneficial effects:

The muffler cover provided by the utility model is provided with structures such as the muffler cavity 11, the muffler channel 21, the first muffler assembly 4 and the second muffler assembly 5, and the airflow enters the first chamber 111 after passing through the muffler to eliminate noise. , then enter the silencing passage 21 and perform silencing again at the first silencing assembly 4, then enter the second cavity 112 and perform silencing again at the second silencing assembly 5, and then discharge all Referring to the cover body 1, in the above process, the noise can be further reduced and eliminated through the two noise reduction of the muffler cover body, which is convenient for practical application.

The above are only preferred embodiments of the present utility model, and are not any formal restrictions on the present utility model. Any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present utility model all fall into the scope of the present utility model. within the scope of protection.

Claims (10)

1. A muffler cover, characterized in that, comprising: A cover body, wherein a sound-absorbing cavity penetrating through the cover body is formed in the cover body; a partition plate, the partition plate is arranged in the sound-absorbing cavity for separating the inside of the sound-absorbing cavity into a first cavity and a second cavity, and the first cavity is located at the side of the second cavity Below, the partition board is provided with a plurality of sound-absorbing passages; A connection body, the connection body is sealed at one end of the cover body away from the second cavity, the connection body is provided with a connection channel communicating with the first cavity, and the connection body is used to communicate with the first cavity. The above-mentioned muffler is sealed and communicated; A first noise reduction component, at least one of the noise reduction channels is provided with the first noise reduction component; A second noise reduction component, the second noise reduction component is arranged in the second cavity. 2. The muffler cover according to claim 1, characterized in that, the first muffler assembly comprises a connected connecting piece and a muffler, the connector is formed with a communication channel, and the muffler is formed with multiple The connecting piece is detachably connected to one end of the silencing channel, and the silencing channel communicates with the silencing hole via the communication channel. 3 . The muffler cover according to claim 2 , wherein the connecting piece is threadedly connected to one end of the muffler channel. 4 . 4 . The muffler cover according to claim 2 , wherein the connector is inserted into one end of the muffler channel. 5 . The muffler cover according to claim 2 , wherein the muffler is spherical in shape and made of foam material. 6 . 6 . The muffler cover according to claim 2 , wherein the connection body and the cover body are integrally formed. 6 . 7. The muffler cover according to claim 2, wherein the second muffler assembly comprises a support frame and a muffler plate, and the support is erected on the inner wall of the cover body and corresponds to the second cavity, The sound attenuation board is arranged on the support frame. 8. The muffler cover according to claim 7, wherein the support frame includes two frames arranged on the inner wall of the cover body and distributed oppositely, and at least There are two clamping spaces, at least one of which is used for clamping the sound-absorbing plate. 9 . The muffler cover according to claim 8 , wherein the muffler plate comprises a first mesh plate, a foam plate and a second mesh plate which are sequentially attached and connected. 10 . 10 . The muffler cover according to claim 9 , wherein a filter screen is provided on the inner wall of the cover body and corresponding to the first cavity. 11 .

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