CN220769662U - Silencer and refrigerating and freezing device - Google Patents

Abstract

The utility model relates to the technical field of refrigeration storage, in particular to a silencing device and a refrigeration and freezing device. The silencing device comprises a silencing body, at least one silencing cavity is arranged in the silencing body, a through hole penetrating through the silencing body is formed in the side wall of the silencing body, at least one sound absorption hole is formed in the peripheral wall of the through hole, and each sound absorption hole is communicated with the at least one silencing cavity; the silencing body is of a split structure, the silencing body is divided into a first body and a second body along the thickness direction of the silencing body, and the silencing cavity is formed by encircling the first body and the second body. In the silencer, the silencer body is of a split structure, so that the silencer body is convenient to manufacture and assemble, the manufacturing process can be simplified, and the production cost can be saved; in addition, be convenient for set up a plurality of not unidimensional sound attenuation chamber in amortization body inside to can more be favorable to realizing absorbing the noise of different frequencies.

Description

Silencer and refrigerating and freezing device

Technical Field

The utility model relates to the technical field of refrigeration storage, in particular to a silencing device and a refrigeration and freezing device.

Background

At present, refrigerator noise is an important index of refrigerator performance, compressor noise is the most dominant noise source, the noise contribution of the compressor noise is always more than 70%, and refrigerator abnormal sound frequently occurs in a compressor bin, so that the quality of refrigerator noise sound is seriously affected. In the prior art, silencing devices are arranged on the left side and the right side of a compressor bin generally, noise of the compressor bin is reduced through the silencing devices, and however, the existing silencing devices have the problems of complex manufacturing process and high production cost.

Disclosure of Invention

In view of the above problems, the present utility model has been made to provide a silencing device and a refrigerating and freezing device that overcome or at least partially solve the above problems, and aims to solve the problem that the existing silencing device has complicated manufacturing process, and achieve the purpose of reducing the production cost.

In one aspect, the present utility model provides a muffler device comprising:

the silencer comprises a silencing body, wherein at least one silencing cavity is arranged in the silencing body, a through hole penetrating through the silencing body is formed in the side wall of the silencing body, at least one sound absorption hole is formed in the peripheral wall of the through hole, and each sound absorption hole is communicated with at least one silencing cavity;

the silencing body is of a split structure, the silencing body is divided into a first body and a second body along the thickness direction of the silencing body, and the silencing cavity is formed by encircling the first body and the second body.

Optionally, the first body includes a first side plate, a peripheral wall, and a sound-deadening chamber partition located on the first side plate;

the second body comprises a second side plate and a slot which is positioned on the second side plate and is in plug-in fit with the silencing cavity partition plate, and the first side plate, the silencing cavity partition plate, the peripheral wall and the second side plate are jointly enclosed to form the through hole and the silencing cavity.

Optionally, the second side plate is provided with a convex strip forming the slot.

Optionally, gaps are formed between two side walls of the slot and the corresponding baffle plates of the silencing cavity.

Optionally, an edge of the peripheral wall remote from the first side plate is welded to the second side plate.

Alternatively, the type of welding is vibration friction welding or ultrasonic welding.

Optionally, the outer contour of the second side plate is greater than the outer contour of the peripheral wall.

Optionally, at least one of the sound-absorbing cavities is in a labyrinth structure or a sound flow structure or a honeycomb structure or a straight pipe structure;

the sound attenuation body is made of sound absorption metamaterial.

Optionally, the aperture of the through hole is 10-200 mm;

and the through hole is provided with an installation assembly interface for installing the ventilation grille.

In another aspect, the present utility model also provides a refrigerating and freezing apparatus, including:

the box body is internally provided with a compressor bin, the box body is internally provided with the silencing device according to any one of the above, and the through hole of the silencing device is communicated with the inner side of the compressor bin;

the silencing device is arranged on the inner side of the bin wall of the compressor bin; or the silencer is arranged on the outer side of the bin wall of the compressor bin, and corresponding through holes which are arranged corresponding to the through holes are formed in the bin wall.

In the silencer, the silencer body is of a split structure, so that the silencer body is convenient to manufacture and assemble, the manufacturing process can be simplified, and the production cost can be saved; in addition, be convenient for set up a plurality of not unidimensional sound attenuation chamber in amortization body inside to can more be favorable to realizing absorbing the noise of different frequencies.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic structural view of a muffler device according to an embodiment of the present utility model;

FIG. 2 is a schematic block diagram of a first body in accordance with one embodiment of the present utility model;

FIG. 3 is a schematic block diagram of a second body in accordance with one embodiment of the present utility model;

FIG. 4 is a schematic structural view of a muffler device according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

fig. 6 is a schematic structural view of a refrigerating apparatus according to an embodiment of the present utility model.

Detailed Description

The silencer and the refrigerating and freezing device according to the embodiment of the present utility model are described below with reference to fig. 1 to 6. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be connected, either permanently or removably, or integrally; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a 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 therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" 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. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural view of a muffler device, as shown in fig. 1, and referring to fig. 2 to 5, an embodiment of the present utility model provides a muffler device 100, which may be used for a refrigerating and freezing apparatus 100.

The silencer 100 comprises a silencing body, at least one silencing cavity 103 is arranged in the silencing body, a through hole 101 penetrating through the silencing body is formed in the side wall of the silencing body, at least one sound absorption hole 102 is formed in the peripheral wall 113 of the through hole 101, and each sound absorption hole 102 is communicated with at least one silencing cavity 103. The silencing body is of a split structure, the silencing body is divided into a first body 110 and a second body 120 along the thickness direction of the silencing body, and the silencing cavity 103 is formed by encircling the first body 110 and the second body 120.

During the manufacturing process, the first body 110 and the second body 120 are manufactured separately; after the first body 110 and the second body 120 are manufactured separately, the first body 110 and the second body 120 are assembled together, thereby constituting the muffler device 100. In the split manufacturing process, the plurality of silencing cavities 103 with different lengths, widths and heights are conveniently designed according to noise reduction requirements, so that the silencing cavities 103 with different sizes correspond to different noise reduction sound pressure frequency bands, and the silencing device 100 has better noise reduction effect.

As shown in fig. 6, in use, the muffler device 100 is installed inside the refrigerator-freezer for reducing noise in the compressor compartment. The noise reduction body can be arranged on the inner side of the compressor bin and the outer side of the compressor bin, when noise in the compressor bin is transmitted from inside to outside, the noise passes through the noise reduction body, and under the blocking effect of the side wall of the noise reduction body, the noise enters the noise reduction cavity 103 through the through hole 101 and the sound absorption hole 102, and under the noise reduction effect of the noise reduction cavity 103, the noise is obviously reduced. In addition, the through hole 101 of the sound deadening body has a heat radiation function, which can transfer the heat in the compressor compartment to the outside of the compressor.

In this embodiment, since the silencing body is of a split structure, the production and preparation of the first body 110 and the second body 120 are facilitated, and the difficulty of production and processing is reduced. Therefore, the silencing body is convenient to manufacture and assemble, so that the manufacturing process can be simplified, and the production cost can be saved; in addition, the silencing body is convenient to be internally provided with a plurality of silencing cavities 103 with different sizes, so that noise with different frequencies can be absorbed more favorably. In addition, the silencing body is provided with the silencing cavity 103, the through hole 101 and the sound absorption hole 102, so that the silencing body has the effects of absorbing sound and reducing noise and dissipating heat.

As shown in fig. 2-5, in some embodiments of the present utility model, the first body 110 includes a first side plate 111, a peripheral wall 113, and a sound damping chamber baffle 112 located on the first side plate 111; the second body 120 includes a second side plate 121 and a slot 122 located on the second side plate 121 and in plug-in fit with the muffler chamber partition 112, where the first side plate 111, the muffler chamber partition 112, the peripheral wall 113 and the second side plate 121 jointly enclose a through hole 101 and a muffler chamber 103.

In the manufacturing and assembling process, the first body 110 and the second body 120 are manufactured separately and then assembled together. Specifically, the muffler chamber partition 112 of the first body 110 is inserted into the slot 122 of the second body 120, and the peripheral wall 113 of the first body 110 contacts the second side plate 121 of the second body 120, so that the first body 110 and the second body 120 together enclose the through hole 101 and the muffler chamber 103.

In this embodiment, since the baffle 112 of the sound-deadening chamber is inserted into the slot 122, on one hand, each sound-deadening chamber 103 can be a closed chamber, so as to improve the sealing effect and the noise-reducing effect of each sound-deadening chamber 103; on the other hand, the positioning function can be achieved, so that the assembly efficiency of the first body 110 and the second body 120 can be improved.

Further, as shown in fig. 2, in some embodiments of the utility model, the sound damping chamber baffle 112 is perpendicular to the first side plate 111 for ease of manufacturing.

Further, as shown in fig. 2, the peripheral wall 113 is perpendicular to the first side plate 111, so that the muffler device 100 is beautiful in appearance and easy to manufacture.

As shown in fig. 3, in some embodiments of the present utility model, a protrusion 123 forming a slot 122 is provided on the second side plate 121. In some alternative embodiments of the utility model, a recess is provided in a surface of the first sidewall that forms the slot 122.

In this embodiment, since the slot 122 is formed by the protruding strips 123, the depth of the slot 122 can be increased, so that the size of the portion of the baffle 112 of the sound-deadening chamber inserted into the slot 122 can be increased, and the sealing effect and the noise reduction effect of each sound-deadening chamber 103 can be further improved.

As shown in fig. 5, in some embodiments of the utility model, there is a gap between both sidewalls of the slot 122 and the corresponding muffling chamber baffle 112.

In this embodiment, since the slot 122 is in clearance fit with the baffle 112 of the sound-damping cavity, the slot 122 is convenient to be inserted in place, and the tightness of the sound-damping cavity 103 can be further improved, so that the sound-damping cavity has a better noise-reducing effect.

In some embodiments of the utility model, the edge of the peripheral wall 113 remote from the first side plate 111 is welded to the second side plate 121.

In the manufacturing and assembling process, the muffler chamber partition 112 of the first body 110 is inserted into the insertion groove 122 of the second body 120, the peripheral wall 113 of the first body 110 is brought into contact with the second side plate 121 of the second body 120, and then the connection position of the peripheral wall 113 and the second side plate 121 is welded, thereby fixing the two together.

In this embodiment, compared with the fastening connection or the clamping connection, the welding manner can improve the sealing performance of the silencer 100, so that the silencer 100 has better noise reduction effect.

Further, in some embodiments of the utility model, the type of welding is vibration friction welding.

Specifically, the edge of the peripheral wall 113 away from the first side plate 111 is fixedly connected to the second side plate 121 by means of vibration friction welding. Vibration friction welding is a technology for realizing welding by utilizing heat generated by interface friction caused by relative vibration of two welding parts, wherein the welding parts are placed on a specified device, vibration is carried out on a contact surface under a certain pressure to generate friction until the interface starts to melt, then vibration is stopped, and pressure maintaining is continued until solidification is carried out, so that the welding purpose is achieved. By using the vibration friction welding, the connection strength between the peripheral wall 113 and the second side plate 121 can be improved, the welding speed can be improved, and no welding smoke and dust, and pollutants harmful to human bodies such as manganese and nickel are generated in the welding process.

In other embodiments of the utility model, the type of welding is ultrasonic welding.

Specifically, the edge of the peripheral wall 113 away from the first side plate 111 and the second side plate 121 are fixedly connected together by ultrasonic welding. Compared with the traditional welding method, the ultrasonic welding has the advantages of remarkable welding speed, high welding efficiency, good welding quality, attractive welding seam, clean and environment-friendly welding process and is very suitable for mass production. Therefore, ultrasonic welding is a rapid, clean and effective assembly process.

In some embodiments of the utility model, the outer contour of the second side plate 121 is greater than the outer contour of the peripheral wall 113 so that the welded seam or solder does not extend beyond the second body 120.

In the present embodiment, since the outer contour of the second side plate 121 is larger than the outer contour of the peripheral wall 113, the welding seam or solder between the two will not be at the outermost edge of the silencer 100 after welding, thereby making the appearance of the silencer 100 more attractive.

In some alternative embodiments of the utility model, the outer contour of the second side plate 121 is equal to the outer contour of the peripheral wall 113.

In some alternative embodiments of the utility model, the manner of the fixed connection between the peripheral wall 113 and the second side plate 121 is a secure connection. For example, connection holes are provided on both the second side plate 121 and the edge of the peripheral wall 113 away from the first side plate 111; the muffler chamber partition 112 of the first body 110 is inserted into the insertion groove 122 of the second body 120, the peripheral wall 113 of the first body 110 is brought into contact with the second side plate 121 of the second body 120, and then screws are inserted into the connection holes, and the first body 110 and the second body 120 are fastened and connected by the screws. The fastening connection mode has the advantages of being convenient to operate and high in assembly efficiency.

In other alternative embodiments of the present utility model, the peripheral wall 113 is fixedly connected to the second side plate 121 by a snap fit.

In some alternative embodiments of the utility model, at least one sound attenuation chamber 103 is in a labyrinth configuration.

In the present embodiment, compared with the acoustic cavity 103 of the acoustic streaming structure, the honeycomb structure, or the straight pipe structure, the depth of the acoustic cavity 103 of the labyrinth structure is deeper, and the propagation path of sound can be remarkably prolonged, so that the acoustic super structure is formed, and the noise reduction effect of the silencer 100 can be further improved.

In some alternative embodiments of the present utility model, at least one sound attenuation chamber 103 is in an acoustic streaming configuration.

In some alternative embodiments of the present utility model, at least one sound attenuation chamber 103 is in a honeycomb structure.

In some alternative embodiments of the present utility model, at least one of the sound attenuation chambers 103 is of straight tube construction.

In some alternative embodiments of the utility model, the sound attenuating body is a sound absorbing metamaterial.

Specifically, the sound-absorbing metamaterial (MAT metamaterial, MAT is an abbreviation of Metamaterial Absorption Technology) is a synthetic material with high sound-absorbing efficiency, and has a complex labyrinth texture structure, and each labyrinth channel can absorb specific frequency, so that the sound-absorbing efficiency is as high as 99%. In addition, compared with the common sound-absorbing material, the sound-absorbing metamaterial has the advantages of more stable chemical property, safer property, no smell, good elasticity, fire resistance, flame retardance, mildew resistance, bacteria resistance and good hand feeling and weight feeling.

In some alternative embodiments of the present utility model, the sound attenuating body is made of ABS.

In some alternative embodiments of the present utility model, the aperture of the through hole 101 is 10-200 mm.

For example: the aperture of the through hole 101 is 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 180mm or 200mm.

Specifically, since the through hole 101 on the silencing body can be used as the sound inlet hole and the heat dissipation hole at the same time, the aperture of the through hole 101 is large to facilitate heat dissipation, but the noise reduction amount is reduced due to the large aperture; the small hole diameter of the through hole 101 is advantageous for noise reduction, but the heat dissipation capacity is reduced. Therefore, in the present embodiment, by setting the aperture of the through hole 101 to a reasonable size, the muffler device 100 has both good noise reduction effect and good heat dissipation effect.

In some alternative embodiments of the present utility model, a mounting fitting interface 130 for mounting the ventilation grille is provided at the through hole 101. In this embodiment, the installation assembly interface 130 is of a clamping structure, and the installation assembly interface 130 is consistent with the existing interface, and is used for installing a ventilation grille, so that the universality and the practicability are improved, the cost is reduced, and the installation assembly interface 130 can be used for refrigerators of different types and different models.

As shown in fig. 6, the present utility model further provides a refrigerating and freezing device, where the refrigerating and freezing device includes a box 200, a compressor compartment 300 is provided in the box 200, and the muffler device 100 according to any one of the embodiments described above is further provided in the box 200, and the through hole 101 of the muffler device 100 is communicated with the inner side of the compressor compartment.

In this embodiment, by installing the silencer 100 inside the refrigerator, noise inside the refrigerator can be reduced, thereby improving the user experience. In addition, because the silencing body is of a split structure, the production and the preparation of the first body 110 and the second body 120 are facilitated, and the difficulty of production and processing is reduced. Therefore, the silencing body is convenient to manufacture and assemble, so that the manufacturing process can be simplified, and the production cost can be saved; in addition, the silencing body is convenient to be internally provided with a plurality of silencing cavities 103 with different sizes, so that noise with different frequencies can be absorbed more favorably.

In some alternative embodiments of the utility model, the muffler device 100 is mounted inside the wall of the compressor compartment. Corresponding bin walls are provided with through holes which are arranged corresponding to the through holes 101.

When the noise in the compressor bin is transmitted from inside to outside in use, through the silencing body, the noise enters the silencing cavity 103 through the through hole 101 and the sound absorption hole 102 under the blocking effect of the side wall of the silencing body, the transmission path of sound is prolonged, and the noise is remarkably reduced under the silencing effect of the silencing cavity 103. Heat within the compressor is transferred to the outside of the compressor compartment through the through-holes 101 and through the holes.

In alternative embodiments of the present utility model, the silencer 100 is installed at the outer side of the wall of the compressor compartment, and the corresponding wall is provided with a through hole corresponding to the through hole 101.

When the noise in the compressor bin is transmitted from inside to outside in use, through the silencing body, the noise enters the silencing cavity 103 through the through holes, the through holes 101 and the sound absorption holes 102 under the blocking effect of the side wall of the silencing body, and the noise is obviously reduced under the silencing effect of the silencing cavity 103. Heat within the compressor is transferred to the outside of the compressor compartment via the through holes and bores 101. In addition, install silencing device 100 in the foaming layer around the compressor storehouse, do not additionally occupy the volume of refrigerator, can be as little as possible lose the volume of refrigerator, and the installation is stable firm, and is shock-resistant, satisfies the transportation test.

In some embodiments of the present utility model, the refrigeration and freezer also includes a ventilation grille mounted to an end of the through-hole 101 facing away from the compressor compartment. Further, the ventilation grille is located outside the compressor compartment.

In order to facilitate the installation and versatility requirements of the ventilation grille, the ventilation grille is mounted at an end of the through hole 101 facing away from the compressor compartment by a clamping structure. The clamping structure comprises clamping hole strips, clamping convex blocks and a buckle. Two ends of the clamping hole strip are connected to the hole edge of one end, away from the compressor bin, of the through hole 101 so as to define a clamping hole. The clamping convex blocks are arranged in the clamping holes and are connected to the hole edges of one ends of the through holes 101, which are far away from the compressor bin. The buckle is connected to the surface of the ventilation grille, which faces the compressor bin, is inserted into the clamping hole and is matched with the clamping convex block.

In some alternative embodiments of the utility model, the refrigerated freezer is a refrigerator.

The refrigerator is internally provided with a refrigerating system, the refrigerating system is provided with a circulation loop for circulating and flowing a refrigerant, and the refrigerating system comprises a compressor, a condenser, a throttle pipeline and an evaporator which are sequentially connected in series, wherein at least the compressor is arranged in a compressor bin, and the compressor bin can be arranged at any position of the refrigerator, such as the bottom, the middle or the top of the refrigerator.

Preferably, the compressor compartment is located at the bottom of the refrigerator, i.e. the compressor compartment is located at the bottom of the cabinet.

In other alternative embodiments of the utility model, the refrigeration chiller is an ice bin.

In some alternative embodiments of the utility model, the cartridge walls include a front wall, a rear wall, a top wall, a bottom wall, a left wall, and a right wall. The silencer 100 is mounted to at least one of the left and right walls of the bin wall.

Preferably, the muffler device 100 is mounted on both the left and right walls of the bin wall.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A muffler device, characterized by comprising:

the silencer comprises a silencing body, wherein at least one silencing cavity is arranged in the silencing body, a through hole penetrating through the silencing body is formed in the side wall of the silencing body, at least one sound absorption hole is formed in the peripheral wall of the through hole, and each sound absorption hole is communicated with at least one silencing cavity;

the silencing body is of a split structure, the silencing body is divided into a first body and a second body along the thickness direction of the silencing body, and the silencing cavity is formed by encircling the first body and the second body.

2. The silencer according to claim 1, wherein,

the first body comprises a first side plate, a peripheral wall and a silencing cavity baffle plate positioned on the first side plate;

the second body comprises a second side plate and a slot which is positioned on the second side plate and is in plug-in fit with the silencing cavity partition plate, and the first side plate, the silencing cavity partition plate, the peripheral wall and the second side plate are jointly enclosed to form the through hole and the silencing cavity.

3. The silencer according to claim 2, wherein,

the second side plate is provided with a convex strip forming the slot.

4. The silencer according to claim 2, wherein,

gaps are formed between the two side walls of the slot and the corresponding baffle plates of the silencing cavity.

5. The silencer according to claim 2, wherein,

the edge of the peripheral wall, which is far away from the first side plate, is welded on the second side plate.

6. The silencer according to claim 5, wherein,

the type of welding is vibration friction welding or ultrasonic welding.

7. The silencer according to claim 5, wherein,

the second side plate has an outer contour greater than an outer contour of the peripheral wall.

8. The silencer according to claim 1, wherein,

at least one of the sound-absorbing cavities is in a labyrinth structure or a sound flow structure or a honeycomb structure or a straight pipe structure;

the sound attenuation body is made of sound absorption metamaterial.

9. The silencer according to claim 1, wherein,

the aperture of the through hole is 10-200 mm;

and the through hole is provided with an installation assembly interface for installing the ventilation grille.

10. A refrigeration and freezer comprising:

a compressor compartment is arranged in the box body, the silencing device as set forth in any one of the above claims 1-9 is also arranged in the box body, and a through hole of the silencing device is communicated with the inner side of the compressor compartment;

the silencing device is arranged on the inner side of the bin wall of the compressor bin; or the silencer is arranged on the outer side of the bin wall of the compressor bin, and corresponding through holes which are arranged corresponding to the through holes are formed in the bin wall.