CN206973988U - A kind of sound insulation compressor room and refrigerator - Google Patents

Abstract

The utility model provides a soundproof compressor cabin and a refrigerator. The soundproof compressor cabin is a cavity for accommodating a compressor, and includes a rear cover behind the compressor, and a rear sound insulation device is arranged outside the rear cover. By providing a rear sound insulation device on the outside of the rear cover, the rear sound insulation device does not need to occupy the space in the cavity, which is beneficial to the heat dissipation of the compressor; and the distance between the rear sound insulation device and the compressor is increased, which is beneficial to noise transmission The attenuation of the noise increases the effect of noise reduction; and the noise is first transmitted through the rear cover to reduce noise, and then transmitted to the rear sound insulation device, which is conducive to further increasing the effect of noise reduction; in addition, the assembly and manufacture of the rear sound insulation device is simple, which is conducive to Improve assembly speed and reduce costs.

Description

A soundproof compressor cabin and refrigerator

technical field

The utility model belongs to the technical field of refrigerators, in particular to a soundproof compressor cabin and a refrigerator with the compressor cabin.

Background technique

At present, various refrigerator manufacturers continue to launch silent design refrigerators to meet consumers' increasingly stringent requirements for refrigerator noise. Compressor noise is an important contributor to the overall noise of refrigerators. Various manufacturers are constantly trying various solutions to reduce and eliminate the noise generated by the compressor compartment of the refrigerator. With the mature application of compressor sound insulation devices on air conditioner outdoor units, sound insulation devices have been gradually adopted in refrigerator compressor compartments in recent years.

However, due to the space structure and cost constraints of the compressor compartment of the refrigerator, the existing technology is to paste a piece of sound-absorbing cotton material between the compressor and the back cover of the compressor compartment. The effect of the sound insulation device on the refrigerator is not very good, and no obvious noise reduction can be achieved. effect, and occupying space in the cabin affects heat dissipation.

Contents of the invention

The utility model aims at the above-mentioned problems existing in the prior art, and provides a sound-insulating compressor cabin, which is beneficial to the heat dissipation of the compressor and improves the effect of sound insulation and noise reduction.

In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical solutions to realize:

A soundproof compressor compartment is a cavity for accommodating a compressor, and includes a rear cover plate behind the compressor, and a rear sound insulation device is arranged on the outer side of the rear cover plate.

Further, the rear sound insulation device includes a rear support provided on the rear cover, and a rear sound absorption layer and a rear sound insulation layer located on the rear support and arranged from front to rear.

Further, the rear bracket has two rear guide grooves oppositely arranged left and right, and the left and right ends of the rear sound-insulating layer and the rear sound-absorbing layer are located in the rear guide grooves.

Further, the rear bracket also has a support plate whose two ends are respectively connected to the lower ends of the two rear guide grooves, and the lower ends of the rear sound-absorbing layer and the rear sound-insulating layer are located on the support plate.

Further, a number of sound-absorbing holes are opened in the area surrounded by the rear bracket on the rear cover.

Further, a front sound insulation device is also provided in front of the compressor.

Further, the soundproof compressor compartment also includes a front cover, and the front sound insulation device is located between the front cover and the compressor.

Further, the front sound insulation device includes a vertical front support, and a front sound absorption layer and a front sound insulation layer located on the front support and arranged from back to front.

Further, the soundproof compressor cabin also includes a bottom plate, and the front bracket is fixed on the bottom plate.

Based on the above-mentioned sound-insulated compressor compartment, the utility model also provides a refrigerator with the sound-insulated compressor compartment, which improves the effect of sound insulation and noise reduction without affecting the heat dissipation effect of the compressor; and the assembly and manufacture are simple, which is beneficial to increase the assembly speed and reduce the cost.

A refrigerator is provided with the above-mentioned soundproof compressor compartment.

In the soundproof compressor compartment provided by the utility model, a rear soundproof device is provided on the outside of the rear cover, so that the rear soundproof device does not need to occupy the space in the cavity, which is beneficial to the heat dissipation of the compressor; and the rear soundproof device and the compressor The distance between them is increased, which is conducive to the attenuation of noise transmission and increases the noise reduction effect; and the noise is first transmitted to the outside through the rear cover for noise reduction, and then transmitted to the rear sound insulation device, which is conducive to further increasing the noise reduction effect; In addition, the rear The assembly and manufacture of the sound insulation device is simple, which is beneficial to increase the assembly speed and reduce the cost.

After reading the specific implementation of the utility model in conjunction with the accompanying drawings, other features and advantages of the utility model will become clearer.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the soundproof compressor compartment proposed by the utility model;

Fig. 2 is a schematic diagram of part of the structure in Fig. 1;

Fig. 3 is a schematic diagram of an enlarged structure at the rear cover in Fig. 2;

Fig. 4 is a schematic diagram of the enlarged structure of the rear cover in Fig. 3;

Figure 5 is a schematic diagram of the enlarged structure of the front sound insulation device in Figure 2;

Fig. 6 is the experimental data comparison diagram of the sound absorption coefficient of the soundproof compressor room in Fig. 1 and the existing scheme;

Fig. 7 is a graph comparing the experimental data of the sound insulation volume of the compressor room in Fig. 1 with that of the existing scheme.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "upper", "lower", "left", "right" etc. is based on the positional relationship shown in the drawings, only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to Fig. 1-Fig. 7, it is an embodiment of the soundproof compressor compartment proposed by the utility model, a kind of soundproof compressor compartment, including bottom plate 2, rear cover plate 3, front cover 4, upper plate 5, left and right side plates 6 and 7, and are mutually assembled and fixed to form a cavity for accommodating the compressor 1. The compressor 1 is fixed on the bottom plate 2, and a rear sound insulation device 31 is provided on the outside of the rear cover 3. By setting the rear sound insulation device 31 on the outside of the rear cover plate 3, the rear sound insulation device 31 does not need to occupy the space in the cavity, which is beneficial to the heat dissipation of the compressor 1; and the distance between the rear sound insulation device 31 and the compressor 1 increases, It is conducive to the attenuation of noise transmission and increases the noise reduction effect; and the noise is firstly transmitted to the outside through the rear cover plate 3 for noise reduction, and then passed to the rear sound insulation device 31, which is conducive to further increasing the effect of noise reduction; in addition, the rear sound insulation device 31 The assembly and manufacture of the utility model are simple, which is conducive to improving the assembly speed and reducing the cost.

In this embodiment, as shown in FIG. 3 , the rear sound insulation device 31 includes a rear bracket 311 arranged on the rear cover 3 , and a rear sound-absorbing layer 312 and a rear sound-insulating layer 313 located on the rear bracket 311 , wherein the rear sound-absorbing layer 312 and the rear sound insulation layer 313 are arranged from front to rear, that is, the rear sound absorption layer 312 is located in front of the rear sound insulation layer 313 . That is, the noise transmitted to the rear sound insulation device 31 first passes through the rear sound-absorbing layer 312 to absorb part of the noise, and then reaches the rear sound-insulating layer 313 to prevent the noise from spreading outward; such two-layer arrangement is conducive to the absorption and weakening of noise , to achieve a better noise reduction effect. For the material selection of the rear sound-absorbing layer 312 and the rear sound-insulating layer 313, conventional sound-absorbing and sound-insulating materials can be used.

In this embodiment, as shown in FIG. 4 , the rear bracket 311 has two rear guide grooves 3111 opposite to each other. The left and right ends of the rear sound-absorbing layer 312 and the rear sound-insulating layer 313 are located in the rear guide grooves 3111 . The rear bracket 311 also has a support plate 3112 at the lower end. In this way, the rear sound-absorbing layer 312 and the rear sound-insulating layer 313 can be installed into the rear bracket 311 conveniently and quickly from the upper end.

In this embodiment, a number of sound-absorbing holes 32 are provided in the area surrounded by the rear bracket 311 on the rear cover 3, so that part of the noise generated by the compressor 1 during operation can pass through the sound-absorbing holes provided on the rear cover 3. Hole 32, the noise of part of the frequency band is absorbed through the sound-absorbing hole 32, which has a certain noise reduction effect; then the remaining noise reaches the rear sound insulation device 31, first passes through the rear sound-absorbing layer 312 to absorb part of the noise, and then reaches the rear sound-insulating layer 313 to prevent Noise spreads outward. The specific frequency band to be absorbed is related to various factors such as the size of the sound-absorbing holes 32 , the arrangement of the sound-absorbing holes 32 on the back cover 3 , and the thickness of the back cover 3 at the sound-absorbing holes 32 .

When the refrigerator is actually placed in the user's home, most of the time it is placed against the wall, and the new national standard noise test refrigerator is also placed against the wall; therefore, the user mainly comes from the front of the refrigerator, which makes the noise of the front of the refrigerator particularly prominent. In this embodiment, as shown in FIG. 2 , a front sound insulation device 8 is provided in front of the compressor 1 , and the front sound insulation device 8 is located between the front cover 4 and the compressor 1 . This not only effectively reduces the noise test value of the refrigerator, but also directly reduces the noise hearing in the front area of the refrigerator (the area where users often move), improving the noise comfort of the refrigerator.

In this embodiment, referring to FIG. 5, the front sound insulation device 8 includes a vertically arranged front bracket 81, and a front sound absorption layer 82 and a front sound insulation layer 83 located on the front bracket 81, and the front sound absorption layer 82 and the front sound insulation layer 83 It is arranged from the back to the front; that is, when the noise propagates forward and reaches the front sound insulation device 8, part of the noise is first absorbed by the front sound-absorbing layer 82, and then reaches the front sound-insulation layer 83 to prevent the noise from spreading forward. The front bracket 81 is fixed on the base plate 2 , and the height of the front sound insulation device 8 is higher than that of the compressor 1 , and the width of the front sound insulation device 8 in the left-right direction is larger than the width of the compressor 1 .

The soundproof compressor cabin in this embodiment can effectively reduce the overall noise of the refrigerator by about 1~2dB, basically about 2dB. Compared with the commonly used solutions at present, the sound insulation and sound absorption effect is obvious, and the low-frequency noise of the compressor 1 is significantly improved.

Referring to Figure 6, it is a comparison of the experimental data of the sound-absorbing coefficient of the sound-insulated compressor cabin in this embodiment and the existing scheme. It can be seen from the figure that the sound-absorbing effect of the present invention is obviously better than the existing scheme, especially in the centering Sound absorption of low frequency noise.

Referring to Fig. 7, it is a comparison of the experimental data of the soundproof compressor compartment in this embodiment and the volume of the existing scheme, and it can be seen from the figure that the volume of the present invention is far superior to that of the existing scheme, and The noise insulation effect is good in almost all frequency bands.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or remodel it into an equivalent change. Equivalent embodiment. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (10)

1. a kind of sound insulation compressor room, to accommodate the cavity of compressor, including the back shroud positioned at compressor rear, its feature exist In the outside of cover plate is provided with rear sound arrester in the rear.

2. sound insulation compressor room according to claim 1, it is characterised in that sound arrester includes setting in the rear after described After-poppet on cover plate and on the after-poppet and the rear sound absorbing layer set from front to back and rear puigging.

3. sound insulation compressor room according to claim 2, it is characterised in that the after-poppet has what left and right was oppositely arranged The left and right ends of guide groove after two, the rear puigging and rear sound absorbing layer are in the rear guide groove.

4. sound insulation compressor room according to claim 2, it is characterised in that the after-poppet also there are both ends to connect respectively The lower end of the supporting plate of guide groove lower end after two, the rear sound absorbing layer and rear puigging is located in the supporting plate.

5. the sound insulation compressor room according to any one of claim 2 to 4, it is characterised in that in the rear by institute on cover plate State and some sound-absorption holes are offered in after-poppet area defined.

6. the sound insulation compressor room according to any one of Claims 1-4, it is characterised in that in the front of the compressor It is additionally provided with preceding sound arrester.

7. sound insulation compressor room according to claim 6, it is characterised in that the sound insulation compressor room also includes front shroud, The preceding sound arrester is between the front shroud and compressor.

8. sound insulation compressor room according to claim 6, it is characterised in that the preceding sound arrester includes vertically arranged Fore-stock and on the fore-stock and the preceding sound absorbing layer set from back to front and preceding puigging.

9. sound insulation compressor room according to claim 8, it is characterised in that the sound insulation compressor room also includes bottom plate, The fore-stock is fixed on the bottom plate.

10. a kind of refrigerator, there is the sound insulation compressor room described in any one of claim 1 to 9.