A press chamber and a refrigeration and freezing device having the same

Abstract

The utility model provides a compressor bin and a refrigeration and freezing device having the same. The compressor bin includes a bin body and a silencer, the bin body has a first side wall and a second side wall that are arranged opposite to each other, and an installation space for installing a compressor between the first side wall and the second side wall, and the first side wall includes a first foam layer. A first through hole is arranged on the first side wall and passes through it. The silencer has a second through hole that passes through it. The thickness of the silencer is greater than or equal to the thickness of the first foam layer, the silencer is arranged on the first side wall and is in the installation space, and the first through hole is arranged opposite to the second through hole. The silencer is arranged in the installation space on the inner side of the first side wall, so that the silencer is not limited by the thickness of the foam layer, and there is no need to sacrifice the silencer effect to change the thickness of the silencer, thereby reducing the noise generated outward from the compressor bin, avoiding users from being subjected to large noise, and improving the user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a press bin and a refrigeration and freezing device having the same. Background Art

[0002] With the use of silencers on the compressor compartment of refrigerator products to reduce noise, silencers have become an important means of dealing with the operating noise of refrigerators (especially compressor noise). However, on the one hand, silencers are usually set in the foam layer of the compressor compartment, and on the other hand, the foam layers on both sides of the compressor compartment of some small-capacity refrigerators are thin. Therefore, after the silencers are installed in the foam layers of these small-capacity refrigerators, the silencers will be limited by the thin thickness, resulting in insufficient depth of the silencer channel, so that the noise carried in the heat dissipation airflow cannot be effectively consumed, which in turn causes the problem of unsatisfactory noise reduction effect, so that users still suffer from large noise. Utility Model Content

[0003] In view of the above problems, the present utility model is proposed to provide a press chamber and a refrigeration and freezing device having the same that overcome the above problems or at least partially solve the above problems, and can solve the problem that a silencer device of effective thickness cannot be installed in the foam layer of the refrigerator, thereby achieving the purpose of improving user experience.

[0004] Specifically, the utility model provides a press chamber, comprising:

[0005] The warehouse body has a first side wall and a second side wall which are arranged opposite to each other, and an installation space between the first side wall and the second side wall for installing a compressor, wherein the first side wall includes a first foaming layer and a first through hole is arranged on the first side wall.

[0006] A silencer having a second through hole passing therethrough, a thickness of the silencer being greater than or equal to a thickness of the first foaming layer, the silencer being disposed on the first side wall and within the installation space, the first through hole being disposed opposite to the second through hole.

[0007] Optionally, a surface of the silencer device facing the first side wall contacts and abuts against an inner surface of the first side wall.

[0008] An area ratio between a projection of the silencer on the inner surface of the first side wall and the inner surface of the first side wall is 3 / 4 to 1.

[0009] Optionally, the first side wall further comprises an inner wall and an outer wall spaced apart from the inner wall, and the first foaming layer is located between the inner wall and the outer wall. The silencer is mounted on the inner wall.

[0010] The thickness of the first side wall is less than or equal to the thickness of the muffler.

[0011] The silencer is connected to the first side wall by at least one of bonding, threading, riveting and snapping.

[0012] Optionally, the thickness of the silencer is in the range of 15 mm to 30 mm.

[0013] Furthermore, the thinnest thickness of the first side wall is less than or equal to 15 mm.

[0014] Optionally, the silencing device has one or more silencing cavities, and at least one sound absorbing opening is provided on the peripheral wall of the second through hole, and each of the sound absorbing openings is connected to at least one of the silencing cavities.

[0015] The silencing device is made of metamaterial, the silencing cavity is bent and extended, and the silencing cavity is arranged on the radial outside of the second through hole.

[0016] The plurality of sound absorbing openings are distributed at intervals along the circumference of the second through hole.

[0017] The plurality of sound absorbing openings include a first sound absorbing opening located below the axis of the second through hole and a second sound absorbing opening located above the axis of the second through hole.

[0018] An area of ​​the first sound absorbing opening is larger than an area of ​​the second sound absorbing opening.

[0019] The depth of the muffler cavity communicated with by the first sound absorbing opening is smaller than the depth of the muffler cavity communicated with by the second sound absorbing opening.

[0020] The number of the first sound absorbing openings is less than the number of the second sound absorbing openings.

[0021] Optionally, the second side wall includes a second foaming layer. The second side wall is provided with a third through hole penetrating therethrough.

[0022] The press chamber also has another silencer, the thickness of the other silencer is greater than or equal to the thickness of the second foaming layer, the other silencer is arranged on the second side wall and is located in the installation space, and the third through hole is arranged opposite to the second through hole of the other silencer.

[0023] Optionally, the first through hole is coaxial with the third through hole, or

[0024] There is a distance between the axis of the first through hole and the axis of the third through hole at least in the up-down direction.

[0025] A protective grille is disposed at or integrally formed at the outer end opening of the first through hole, and a protective grille is disposed at or integrally formed at the outer end opening of the second through hole.

[0026] The utility model also provides a refrigeration and freezing device, comprising:

[0027] A box body, wherein the box body has a press chamber as described in any one of the above items.

[0028] A compressor is arranged in the installation space.

[0029] Optionally, the distance between the compressor and the first side wall is smaller than the distance between the compressor and the second side wall.

[0030] The distance between the compressor and the first side wall is greater than the thickness of the muffler, and the distance between the compressor and the first side wall is less than or equal to 1.3 times the thickness of the muffler. Alternatively, the compressor is in contact with the muffler.

[0031] Optionally, the compressor comprises a compressor body and a compressor control box for controlling the compressor body. The compressor control box is installed on one side of the compressor body, and the compressor control box is located between the compressor body and the muffler.

[0032] Optionally, the compressor is a variable frequency compressor.

[0033] In the press chamber of the utility model, since the thickness of the foam layer of the first side wall is less than or equal to the thickness of the silencer, the silencer is arranged in the installation space on the inner side of the first side wall, so that the silencer is not limited by the thickness of the foam layer, and there is no need to sacrifice the silencer effect to change the thickness of the silencer. When the heat dissipation airflow passes through the first through hole and enters the second through hole, the noise is consumed by the silencer cavity, reducing the noise generated outward from the press chamber, avoiding users from being subjected to large noise, and achieving the purpose of improving user experience.

[0034] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 is a schematic front view of a refrigeration and freezing device according to an embodiment of the utility model;

[0037] Figure 2 It is a schematic partial structural diagram of a refrigeration and freezing device according to an embodiment of the utility model;

[0038] Figure 3 is a schematic partial cutaway view of a refrigeration and freezing device according to an embodiment of the utility model;

[0039] Figure 4 is a schematic partial cutaway view of a refrigeration and freezing device according to an embodiment of the utility model;

[0040] Figure 5 It is a schematic structural diagram of a silencing device according to an embodiment of the utility model.

[0041] List of reference numerals: 100, warehouse body; 110, installation space; 200, first side wall; 210, first through hole; 221, inner wall; 222, outer wall; 230, first foaming layer; 300, second side wall; 310, third through hole; 330, second foaming layer; 400, silencer; 410, second through hole; 420, sound absorption opening; 421, first sound absorption opening; 422, second sound absorption opening; 430, silencer chamber; 500, compressor; 600, protective grille. DETAILED DESCRIPTION

[0042] Refer to the following Figures 1 to 5 To describe the press bin of the embodiment of the utility model and the refrigeration and freezing device having the same. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0043] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0044] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] Figure 1 is a schematic front view of a refrigeration and freezing device according to an embodiment of the utility model, as shown Figure 1 As shown, and refer to Figures 2 to 5 The embodiment of the utility model provides a compressor bin, including a bin body 100 and a silencer 400. The bin body 100 has a first side wall 200 and a second side wall 300 arranged opposite to each other, and an installation space 110 for installing a compressor 500 between the first side wall 200 and the second side wall 300, and the first side wall 200 includes a first foaming layer 230. The first side wall 200 is provided with a first through hole 210 penetrating therethrough. The silencer 400 has a second through hole 410 penetrating therethrough. The thickness H of the silencer 400 is greater than or equal to the thickness h1 of the first foaming layer 230, the silencer 400 is arranged on the first side wall 200, and is located in the installation space 110, and the first through hole 210 and the second through hole 410 are arranged opposite to each other.

[0047] In this embodiment, the interior of the installation space 110 is connected to the outside of the refrigeration and freezing device through the first through hole 210 and the second through hole 410, thereby achieving the purpose of heat dissipation inside the compressor compartment. A silencer channel is provided inside the silencer 400, and the silencer channel of the silencer 400 is connected to the second through hole 410 so that the noise is consumed in the silencer channel. The silencer channel can be a resonant cavity. Alternatively, the silencer channel can also be a silencer cavity 430 with a labyrinth structure, an acoustic flow structure, a honeycomb structure or a straight tube structure. Since the thickness H of the silencer 400 is greater than or equal to the thickness h1 of the first foaming layer 230, the silencer 400 cannot be installed in the first foaming layer 230, or it cannot be ensured that both sides of the silencer 400 after installation can have foaming material flowing in and filling to fix the silencer 400. The silencer 400 is disposed on the first side wall 200 and is located in the installation space 110, so that the silencer 400 is not limited by the thickness h1 of the first foaming layer 230, that is, the noise generated by the compressor 500 is effectively consumed without changing the thickness H of the silencer 400. The silencer 400 is installed on the first side wall 200 and is located in the installation space 110, which reduces the noise generated outward by the compressor compartment, avoids the user from still being subjected to a large noise, and improves the user experience.

[0048] Moreover, compared with setting the silencer 400 in the first side wall 200, the silencer 400 is located in the installation space 110, which is closer to the sound source generated by the compressor 500, so that the noise reduction effect of the silencer 400 is better. Furthermore, the silencer 400 can be installed in the installation space 110 after the foaming process of the first foaming layer 230 is completed, and there is no need to consider the installation of the silencer 400 during the filling of the foaming material, which simplifies the disassembly and assembly process of the silencer 400, and is also convenient for solving after-sales problems caused by damage to the silencer 400, thereby improving the user experience.

[0049] In some embodiments of the press chamber of the present utility model, as Figure 1 and Figure 3 As shown, the surface of the muffler 400 facing the first side wall 200 contacts and abuts against the inner surface of the first side wall 200. The area ratio between the projection of the muffler 400 on the inner surface of the first side wall 200 and the inner surface of the first side wall 200 is 3 / 4 to 1.

[0050] In this embodiment, increasing the ratio of the projection area of ​​the silencer 400 on the inner surface of the first side wall 200 to the inner surface area of ​​the first side wall 200 is beneficial to improving the silencer effect of the silencer 400, thereby making the press chamber have a better noise reduction effect.

[0051] In some embodiments of the press chamber of the present invention, the silencer 400 is connected to the first side wall 200 by bonding.

[0052] In this embodiment, the silencer 400 is bonded to the first side wall 200. The housing 100 does not need to design and process the installation structure of the silencer 400 in advance during the manufacturing process. It only needs to perform the bonding operation when installing the silencer 400. Moreover, when the silencer 400 needs to be replaced or repaired, the bonded structure is easy to disassemble, which improves the user experience. This connection method facilitates the production and processing of the refrigeration and freezing device, simplifies the installation and disassembly methods of the silencer 400, and thus reduces the cost of production.

[0053] Alternatively, the silencer 400 may also be connected to the first side wall 200 by threaded connection, riveting, snap connection or other connection methods.

[0054] In some embodiments of the press chamber of the present utility model, as Figure 2 and Figure 4 As shown, the first side wall 200 further includes an inner wall 221 and an outer wall 222 spaced apart from the inner wall 221, and the first foaming layer 230 is located between the inner wall 221 and the outer wall 222. The silencer 400 is mounted on the inner wall 221. The thickness of the first side wall 200 is less than or equal to the thickness H of the silencer 400.

[0055] In this embodiment, the thickness of the first side wall 200 is less than or equal to the thickness H of the silencer 400, thereby making the thickness h1 of the first foaming layer 230 less than or equal to the thickness H of the silencer 400. The thickness h1 of the first foaming layer 230 is small, thereby reducing the production cost of the refrigeration and freezing device. Moreover, the silencer 400 is installed on the inner wall 221, thereby ensuring that the silencer cavity 430 in the silencer 400 has a sufficient depth, thereby ensuring the noise reduction effect of the silencer 400.

[0056] In some embodiments of the press chamber of the present invention, the thickness H of the muffler 400 is in the range of 15 mm to 30 mm. In addition, the thickness of the thinnest part of the first side wall 200 is less than or equal to 15 mm.

[0057] In this embodiment, a low-cost small refrigerator is used as an example of a refrigeration and freezing device. In order to reduce the production cost of the refrigeration and freezing device, the thickness of the thinnest part of the first side wall 200 is less than or equal to 15 mm, and the thickness h1 of the first foaming layer 230 is less than or equal to 15 mm. In addition, the thickness H of the silencer 400 is greater than or equal to 15 mm to ensure that the depth of the silencer cavity 430 in the silencer 400 is sufficient, so that the noise is effectively consumed after passing through the silencer cavity 430 to ensure the noise reduction effect. In addition, the thickness H of the silencer 400 is less than or equal to 30 mm, which reduces the volume of the silencer 400 to a certain extent while ensuring the utilization rate of the silencer cavity 430, thereby reducing the manufacturing cost of the silencer 400.

[0058] In some embodiments of the press chamber of the present utility model, as Figure 5 As shown, the silencer 400 has one or more silencer cavities 430 therein, and at least one sound absorption opening 420 is opened on the peripheral wall of the second through hole 410 , and each sound absorption opening 420 is connected to at least one silencer cavity 430 .

[0059] Furthermore, the silencing device 400 is made of metamaterial, the silencing cavity 430 is bent and extended, and the silencing cavity 430 is arranged radially outside the second through hole 410. A plurality of sound absorbing openings 420 are distributed at intervals along the circumference of the second through hole 410.

[0060] In this embodiment, the metamaterial may be a sound-absorbing metamaterial or a porous material to absorb noise. When the noise passes through the second through hole 410 , the sound-absorbing openings 420 spaced apart circumferentially of the second through hole 410 enter the silencing cavity, so that the noise is effectively consumed after passing through the silencing cavity 430 .

[0061] In some embodiments of the press chamber of the present utility model, as Figure 3 and Figure 5 As shown, the plurality of sound absorbing openings 420 include a first sound absorbing opening 421 located below the axis of the second through hole 410 and a second sound absorbing opening 422 located above the axis of the second through hole 410. The area of ​​the first sound absorbing opening 421 is larger than that of the second sound absorbing opening 422.

[0062] In this embodiment, on the one hand, since the first sound absorption opening 421 is mainly used to reduce the noise of high-frequency sound waves, and the second sound absorption opening 422 is mainly used to reduce the noise of low-frequency sound waves, the area of ​​the second sound absorption opening 422 is smaller than the area of ​​the first sound absorption opening 421, which is more conducive to improving the noise reduction effect of the second sound absorption opening 422 on low-frequency sound waves, and is more conducive to improving the noise reduction effect of the first sound absorption opening 421 on high-frequency sound waves, thereby improving the noise reduction effect of the compressor compartment, thereby reducing the noise emitted by the refrigeration and freezing device, so as to further improve the user experience. On the other hand, since the area of ​​the second sound absorption opening 422 is smaller than the area of ​​the first sound absorption opening 421, it is more conducive to dust removal and cleaning of the first sound absorption opening 421 with the opening facing upward and the muffler cavity 430 connected to the first sound absorption opening 421.

[0063] In some embodiments of the press chamber of the present utility model, as Figure 5 As shown, the depth of the muffler cavity 430 connected to the first sound absorbing opening 421 is smaller than the depth of the muffler cavity 430 connected to the second sound absorbing opening 422 .

[0064] In this embodiment, on the one hand, since the muffler cavity 430 includes the muffler cavity 430 connected to the second sound absorption opening 422 and the muffler cavity 430 connected to the first sound absorption opening 421, the depth of the muffler cavity 430 connected to the second sound absorption opening 422 is greater than the depth of the muffler cavity 430 connected to the first sound absorption opening 421. Therefore, based on the mechanism that the wavelength of low-frequency sound waves is longer than the wavelength of high-frequency sound waves, the muffler cavity 430 connected to the second sound absorption opening 422 is mainly used to reduce the noise of low-frequency sound waves, and the muffler cavity 430 connected to the first sound absorption opening 421 is mainly used to reduce the noise of high-frequency sound waves. In other words, the muffler device 400 can be used for both low-frequency noise reduction and high-frequency noise reduction. The muffler device 400 has a wide action band, a wide-band noise reduction effect and a good noise reduction effect, so that the compressor compartment can be effectively noise-reduced, the noise reduction effect of the refrigeration and freezing device is ensured, and the user experience is improved.

[0065] On the other hand, since the opening of the second sound absorption opening 422 connected to the muffler cavity 430 connected to the second sound absorption opening 422 faces downward, and the opening of the first sound absorption opening 421 connected to the muffler cavity 430 connected to the first sound absorption opening 421 faces upward. When in use, dust is not easy to enter the muffler cavity 430 connected to the second sound absorption opening 422, and the dust has little effect on the muffler cavity 430 connected to the second sound absorption opening 422. In addition, since the main frequency generated by the press chamber is low-frequency noise, even if dust enters the muffler cavity 430 connected to the first sound absorption opening 421, it will not have a significant impact on the noise reduction of the press chamber. Therefore, this design reduces the impact of dust on the noise reduction effect of the press chamber. In addition, since the depth of the muffler cavity 430 connected to the first sound absorption opening 421 is shallow, it is easier to clean and dust the muffler cavity 430 connected to the first sound absorption opening 421. The impact of dust on the noise reduction effect during use is reduced, so that the muffler device 400 has a good noise reduction effect.

[0066] In some embodiments of the press chamber of the present utility model, as Figure 5 As shown, the number of the first sound absorbing openings 421 is less than the number of the second sound absorbing openings 422 .

[0067] In this embodiment, since the number of the second sound absorption openings 422 is greater than the number of the first sound absorption openings 421, the number of the muffler cavities 430 connected to the second sound absorption openings 422 is greater than the number of the muffler cavities 430 connected to the first sound absorption openings 421. In addition, since the noise of the compressor compartment is mainly low-frequency noise, it is more conducive to the muffler device 400 to reduce the noise of the low-frequency sound waves, which can be more conducive to improving the noise reduction effect of the compressor compartment, thereby reducing the noise generated outward by the refrigeration and freezing device.

[0068] In some embodiments of the press chamber of the present invention, the second side wall 300 includes a second foaming layer 330. The second side wall 300 is provided with a third through hole 310 penetrating therethrough.

[0069] In this embodiment, the third through hole 310 and the first through hole 210 allow the airflow in the installation space 110 to flow in from one side and out from the other side, thereby improving the heat dissipation effect in the press chamber by allowing the airflow in the press chamber to flow quickly.

[0070] In some embodiments of the press chamber of the present utility model, as Figure 2 and Figure 3 As shown, the press chamber also has another silencer 400, the thickness H of the other silencer 400 is greater than or equal to the thickness h2 of the second foaming layer 330, the other silencer 400 is arranged on the second side wall 300 and is located in the installation space 110, and the third through hole 310 is arranged opposite to the second through hole 410 of the other silencer 400.

[0071] In this embodiment, when the noise propagates outward from the third through hole 310, it passes through the second through hole 410 and then enters the silencer cavity from the circumferentially spaced sound absorption openings 420 of the second through hole 410, so that the noise is effectively consumed after passing through the silencer cavity 430, thereby improving the noise reduction effect of the press chamber.

[0072] In some embodiments of the press chamber of the present utility model, as Figure 3 As shown, the first through hole 210 is coaxial with the third through hole 310 .

[0073] In this embodiment, the airflow flows through the two coaxially arranged first through holes 210 and third through holes 310, so that the airflow can flow more smoothly, reducing the resistance of the first side wall 200 and the second side wall 300 to the heat dissipation airflow, thereby improving the heat dissipation efficiency.

[0074] In some other embodiments of the press chamber of the present invention, there is a distance between the axis of the first through hole 210 and the axis of the third through hole 310 at least in the up and down direction.

[0075] In this embodiment, the axis of the first through hole 210 is located above the axis of the third through hole 310. When the compressor 500 is working, since the first through hole 210 and the third through hole 310 are staggered up and down, the high-temperature airflow in the compressor chamber flows upward and is discharged from the compressor chamber from the first through hole 210 located at the top. At the same time, since the high-temperature airflow flows upward, a negative pressure is generated at the bottom of the compressor chamber. Under the action of the atmospheric pressure outside the compressor chamber, the air outside the compressor chamber enters the compressor chamber through the third through hole 310 located at the bottom. In other words, the first through hole 210 located at the top is the airflow outlet, and the third through hole 310 located at the bottom is the airflow inlet, so as to form an airflow that runs through the compressor chamber, so that the airflow can quickly flow through the compressor chamber and take away the heat in the compressor chamber, which can further improve the heat dissipation effect in the compressor chamber.

[0076] In some embodiments of the press chamber of the present utility model, as Figure 2 As shown, a protective grille 600 is disposed at the outer opening of the first through hole 210 .

[0077] In this embodiment, the protective grille 600 can ensure ventilation and heat dissipation inside and outside the press chamber, and can also prevent debris, animals, etc. from entering.

[0078] Alternatively, the protection grille 600 is integrally formed at the outer end opening of the first through hole 210 .

[0079] In this embodiment, the protective grille 600 is integrally formed with the outer end opening of the first through hole 210. On the one hand, resonance and noise can be avoided at the connection between the protective grille 600 and the outer end of the first through hole 210 when the compressor 500 is working, thereby avoiding reduction in the sound quality of the refrigerator and freezer. On the other hand, the manufacturing efficiency of the protective grille 600 can be improved and the manufacturing cost can be reduced.

[0080] In some embodiments of the press chamber of the present invention, a protective grille 600 is provided at the outer opening of the second through hole 410 .

[0081] Alternatively, the protection grille 600 is integrally formed at the outer end opening of the second through hole 410 .

[0082] The utility model further provides a refrigeration and freezing device. In some embodiments of the refrigeration and freezing device of the utility model, the refrigeration and freezing device comprises a box body and a compressor 500. The box body has a compressor compartment in any of the above embodiments. The compressor 500 is arranged in the installation space 110.

[0083] In this embodiment, the silencer 400 is arranged on the first side wall 200 and is located in the installation space 110, so that the silencer 400 is not limited by the thickness h1 of the first foaming layer 230, that is, without changing the thickness H of the silencer 400, the noise carried in the heat dissipation airflow is effectively consumed. The silencer 400 is installed on the first side wall 200 and is located in the installation space 110, which reduces the noise generated by the compressor compartment outward, avoids the situation where the user is still subjected to a large noise, and achieves the purpose of improving the user experience. Moreover, compared with the silencer 400 being arranged in the first side wall 200, the silencer 400 is located in the installation space 110, which is close to the sound source generated by the compressor 500, so that the noise reduction effect of the silencer 400 is better. Furthermore, the silencer 400 can be installed in the installation space 110 after the foaming process of the first foaming layer 230 is completed. There is no need to consider the installation of the silencer 400 during the filling of the foaming material, which simplifies the disassembly and assembly process of the silencer 400, and facilitates solving after-sales problems caused by damage to the silencer 400, thereby improving the user experience.

[0084] In some embodiments of the refrigerator-freezer of the present invention, Figure 1 and Figure 3 As shown, the distance between the compressor 500 and the first sidewall 200 is smaller than the distance between the compressor 500 and the second sidewall 300 .

[0085] In this embodiment, the compressor 500 is close to the first side wall 200, that is, close to the first through hole 210. On the one hand, the heat generated by the compressor 500 is quickly discharged from the inside of the compressor chamber through the first through hole 210. On the other hand, the compressor 500 is close to the silencer 400, so that the silencer 400 has a better sound receiving effect on the noise generated by the compressor 500, thereby improving the noise reduction effect of the refrigeration and freezing device.

[0086] Preferably, the distance between the compressor 500 and the first side wall 200 is greater than the thickness H of the muffler 400 , and the distance between the compressor 500 and the first side wall 200 is less than or equal to 1.3 times the thickness H of the muffler 400 .

[0087] Alternatively, the compressor 500 may be in contact with the silencer 400 .

[0088] In some embodiments of the refrigerator and freezer of the present invention, the compressor 500 includes a compressor body and a compressor control box for controlling the compressor body. The compressor control box is installed on one side of the compressor body, and the compressor control box is located between the compressor body and the muffler 400.

[0089] In this embodiment, the compressor control box is installed on one side of the compressor body close to the silencer 400, so that the compressor control box is close to the first through hole 210 for heat dissipation, reducing the impact of heat generated by the compressor 500 on the compressor control box and increasing the service life of the compressor control box.

[0090] Preferably, the compressor 500 is a variable frequency compressor. The variable frequency compressor has low noise when working, which further reduces the noise generated by the compressor compartment, and further reduces the noise emitted by the refrigeration and freezing device, thus preventing users from being exposed to high noise and improving user experience.

[0091] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A press chamber, characterized in that: include: A silo body, the silo body having a first side wall and a second side wall arranged opposite to each other, and an installation space between the first side wall and the second side wall for installing a compressor, the first side wall comprising a first foaming layer; and the first side wall is provided with a first through hole penetrating therethrough; A silencer having a second through hole extending therethrough; a thickness of the silencer being greater than or equal to a thickness of the first foaming layer; the silencer being disposed on the first side wall and within the installation space; and the first through hole being disposed opposite to the second through hole.

2. The press chamber according to claim 1, characterized in that: The surface of the muffler device facing the first side wall contacts and abuts against the inner surface of the first side wall; An area ratio between a projection of the silencer on the inner surface of the first side wall and the inner surface of the first side wall is 3 / 4 to 1.

3. The press chamber according to claim 1, characterized in that: The first side wall further comprises an inner wall and an outer wall spaced apart from the inner wall, the first foaming layer is located between the inner wall and the outer wall; the silencer is mounted on the inner wall; The thickness of the first side wall is less than or equal to the thickness of the muffler; The silencer is connected to the first side wall by at least one of bonding, threading, riveting and snapping.

4. The press chamber according to claim 1, characterized in that: The thickness of the muffler is in the range of 15 mm to 30 mm; and The thinnest thickness of the first side wall is less than or equal to 15 mm.

5. The press chamber according to claim 1, characterized in that: The muffler device has one or more muffler cavities, and the peripheral wall of the second through hole is provided with at least one sound absorbing opening, and each of the sound absorbing openings is connected to at least one of the muffler cavities; The muffler device is made of metamaterial, the muffler cavity is bent and extended, and the muffler cavity is arranged radially outside the second through hole; The plurality of sound absorbing openings are distributed at intervals along the circumference of the second through hole; The plurality of sound absorbing openings include a first sound absorbing opening located below the axis of the second through hole and a second sound absorbing opening located above the axis of the second through hole; The area of ​​the first sound absorption opening is greater than the area of ​​the second sound absorption opening; The depth of the muffler cavity connected to the first sound absorbing opening is less than the depth of the muffler cavity connected to the second sound absorbing opening; The number of the first sound absorbing openings is less than the number of the second sound absorbing openings.

6. The press chamber according to claim 1, characterized in that: The second side wall includes a second foaming layer; the second side wall is provided with a third through hole penetrating therethrough; The press chamber also has another silencer, the thickness of the other silencer is greater than or equal to the thickness of the second foaming layer, the other silencer is arranged on the second side wall and is located in the installation space, and the third through hole is arranged opposite to the second through hole of the other silencer.

7. The press chamber according to claim 6, characterized in that: The first through hole is coaxial with the third through hole, or There is a distance between the axis of the first through hole and the axis of the third through hole at least in the up-down direction; A protective grille is disposed at or integrally formed at the outer end opening of the first through hole, and a protective grille is disposed at or integrally formed at the outer end opening of the second through hole.

8. A refrigeration and freezing device, characterized in that: include: A box body, the box body having a press chamber as claimed in any one of claims 1 to 7; A compressor is arranged in the installation space.

9. The refrigerator-freezer according to claim 8, characterized in that: The distance between the compressor and the first side wall is smaller than the distance between the compressor and the second side wall; The distance between the compressor and the first side wall is greater than the thickness of the silencer, and the distance between the compressor and the first side wall is less than or equal to 1.3 times the thickness of the silencer; or, the compressor is in contact with the silencer.

10. The refrigerator-freezer according to claim 8 or 9, characterized in that: The compressor comprises a compressor body and a compressor control box for controlling the compressor body; the compressor control box is installed on one side of the compressor body, and the compressor control box is located between the compressor body and the silencer.

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