Silencing device and refrigeration and freezing device

Abstract

A silencing device (100) and a refrigeration and freezing device. The silencing device (100) comprises: a silencing body, wherein a through hole (101) penetrating through the silencing body is formed in the side wall of the silencing body, and the hole diameter Φ of the through hole (101) is equal to nP, wherein n is a preset coefficient, and P is the stable power of a compressor (301). In the silencing device (100), a hole diameter calculation formula for the through hole (101) of the silencing device (100) is provided and can be used as a design standard, and the calculation mode can adapt to different types of refrigeration and freezing devices.

Description

Silencers and refrigeration units Technical Field

[0001] The present disclosure relates to the technical field of refrigeration storage, and in particular to a silencer and a refrigeration and freezing device. Background Art

[0002] Currently, refrigerator noise is a key performance indicator, with compressor noise being the primary source, contributing over 70%. Frequent noise within the compressor compartment can also affect refrigerator quality.

[0003] Summary of the Invention

[0004] The present disclosure provides a noise reduction device and a refrigeration and freezing device.

[0005] In one aspect, the present disclosure provides a noise reduction device, comprising:

[0006] The silencer body has a through hole penetrating the silencer body on its side wall, and the aperture of the through hole satisfies the following relationship: Φ=nP, wherein Φ is the aperture of the through hole, n is a preset coefficient, and P is the stable power of the compressor.

[0007] Optionally, the preset coefficient has a value range of 0.2 to 0.6.

[0008] Optionally, at least one silencer cavity is provided inside the silencer body, and at least one sound-absorbing hole is provided on the peripheral wall of the through hole, and each of the sound-absorbing holes is connected to at least one silencer cavity; the silencer body is divided into a first body and a second body along its thickness direction, and the at least one silencer cavity is enclosed by the first body and the second body.

[0009] Optionally, the first body includes a first side panel, a peripheral wall and a silencer chamber partition located on the first side panel; the second body includes a second side panel and a slot located on the second side panel and plugged into the silencer chamber partition, and the first side panel, the silencer chamber partition, the peripheral wall and the second side panel together enclose the through hole and the at least one silencer chamber.

[0010] Optionally, a convex strip forming the slot is provided on the second side panel.

[0011] Optionally, there is a gap between both side walls of the slot and the muffler chamber partition.

[0012] Optionally, an edge of the peripheral wall away from the first side plate is welded to the second side plate;

[0013] The type of welding is vibration friction welding or ultrasonic welding.

[0014] Optionally, the outer contour of the second side plate is larger than the outer contour of the peripheral wall.

[0015] Optionally, the at least one silencer cavity is in a labyrinthine structure, an acoustic flow structure, a honeycomb structure, or a straight tube structure; and the silencer body is made of a sound-absorbing metamaterial.

[0016] Optionally, the through hole has a diameter of 10 to 200 mm; and an installation and assembly interface for installing a ventilation grille is provided at the through hole.

[0017] In another aspect, the present disclosure further provides a refrigeration and freezing device, comprising:

[0018] A box body is provided with a compressor compartment, and a silencer as described in any one of the above items is also provided in the box body, and the through hole of the silencer device is connected to the inner side of the compressor compartment.

[0019] Optionally, the silencer is installed on the inner side of the compressor compartment wall; or, the silencer is installed on the outer side of the compressor compartment wall, and the corresponding compartment wall is provided with a through hole corresponding to the through hole.

[0020] Optionally, the compressor compartment includes a compartment wall, the compressor is provided in the compressor compartment, two silencers are provided in the box body, the first silencer of the two silencers is installed on the left wall of the compartment wall, and the second silencer of the two silencers is installed on the right wall of the compartment wall, the first through hole of the first silencer and the second through hole of the second silencer are staggered up and down, or the first through hole of the first silencer and the second through hole of the second silencer are coaxially arranged.

[0021] Optionally, when the first through hole of the first silencer device and the second through hole of the second silencer device are staggered up and down, the preset coefficient is the first preset coefficient; when the first through hole of the first silencer device and the second through hole of the second silencer device are coaxially arranged, the preset coefficient is the second preset coefficient; the second preset coefficient is greater than or equal to the first preset coefficient.

[0022] Optionally, the central axis of the first through hole is located between the top of the compressor and the top wall of the warehouse wall. When the first through hole of the first silencer device and the second through hole of the second device are staggered up and down, the second through hole is lower than the first through hole.

[0023] Optionally, the compressor includes an upper shell and a lower shell, and a connection area is provided between the upper shell and the lower shell; the central axis of the second through hole is located between the connection area and the bottom wall of the warehouse wall.

[0024] Optionally, a horizontal distance between the first through hole and the compressor is smaller than a horizontal distance between the second through hole and the compressor.

[0025] Optionally, a heat dissipation fan is further provided in the compressor compartment, and the heat dissipation fan is used to blow the air on the air inlet side of the compressor compartment to the air outlet side of the compressor compartment, and the compressor is located on the air outlet side of the compressor compartment.

[0026] Optionally, the refrigeration and freezing device also includes a condenser, which is arranged on the air inlet side of the compressor compartment, and the heat dissipation fan is located between the compressor compartment and the condenser; or, the heat dissipation fan is located on the air inlet side of the compressor compartment, and the condenser is located between the compressor compartment and the heat dissipation fan.

[0027] Optionally, the compressor includes an upper shell and a lower shell, and a connection area is provided between the upper shell and the lower shell; the central axis of the second through hole is located between the center position of the heat dissipation fan in the height direction and the bottom wall of the warehouse wall.

[0028] Optionally, the central axis of the second through hole is located between the center position of the condenser in the height direction and the bottom wall of the warehouse wall.

[0029] The silencer disclosed herein provides a calculation formula for the aperture size of the silencer's through-holes, which can serve as a design standard. This calculation method is applicable to a variety of different models of refrigerators and freezers. Because the aperture of the silencer's through-holes is designed based on the compressor's stable power, the silencer can simultaneously achieve both heat dissipation and noise reduction, thereby enhancing the user experience.

[0030] Based on the following detailed description of the specific embodiments of the present disclosure in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present disclosure will be described in detail in an illustrative 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.

[0032] FIG1 is a schematic structural diagram of a silencer according to an embodiment of the present disclosure.

[0033] FIG2 is a schematic structural diagram of a first body according to an embodiment of the present disclosure.

[0034] FIG3 is a schematic structural diagram of a second body according to an embodiment of the present disclosure.

[0035] FIG4 is a schematic structural diagram of a silencing device according to an embodiment of the present disclosure.

[0036] FIG. 5 is a cross-sectional view taken along line AA in FIG. 4 .

[0037] FIG6 is a schematic structural diagram of a refrigeration and freezing device according to an embodiment of the present disclosure.

[0038] FIG7 is a schematic structural diagram of a compressor compartment according to an embodiment of the present disclosure.

[0039] FIG8 is a schematic diagram of airflow distribution in a compressor compartment according to one embodiment of the present disclosure.

[0040] FIG9 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure.

[0041] FIG. 10 is a schematic diagram of airflow distribution in a compressor compartment according to another embodiment of the present disclosure.

[0042] FIG11 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure.

[0043] FIG12 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure.

[0044] FIG13 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure.

[0045] FIG14 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure.

[0046] FIG. 15 is a schematic structural diagram of a compressor compartment according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0047] The following describes the silencer device and the refrigeration and freezing device of the embodiment of the present disclosure with reference to Figures 1 to 15. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, 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 present disclosure, the meaning of "plurality" 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.

[0048] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they can refer to fixed or removable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0049] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but 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 or obliquely above the second feature, or simply means 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 means that the first feature is lower in level than the second feature.

[0050] In the description of the present embodiment, 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 present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0051] In the related art, a silencer can be installed at the ventilation windows on the left and right sides of the compressor compartment to reduce the noise of the compressor compartment through the silencer. A through hole is provided on the side wall of the silencer, a silencer cavity is provided inside the silencer body, and a sound absorption hole connected to the silencer cavity is provided on the peripheral wall of the through hole. Due to the serious heat dissipation problem of the compressor compartment, the energy consumption of the refrigerator is affected. In the case of no fan in the compressor compartment, the compressor compartment dissipates heat through natural convection. In other words, after the silencer is installed to reduce noise, the compressor compartment is basically in a closed state, and the heat is mainly dissipated by natural convection through the through holes on the side walls of the silencer. The aperture size of the through hole determines the effect of noise reduction and heat dissipation. If the aperture is too large, the noise reduction is small, and if the aperture is too small, the heat dissipation is small. However, there is currently no unified standard for the design of the aperture of the through hole of the silencer, which results in the silencer being unable to take into account both heat dissipation and noise reduction at the same time, reducing the user experience.

[0052] FIG1 is a schematic structural diagram of a silencer 100 . As shown in FIG1 , and with reference to FIG2 to FIG10 , an embodiment of the present disclosure provides a silencer 100 , which can be used in a refrigeration and freezing device.

[0053] The muffler device 100 includes a muffler body, which has at least one muffler cavity 103 defined therein. A through hole 101 is formed on the sidewall of the muffler body, extending therethrough. At least one sound-absorbing hole 102 is formed on the peripheral wall 113 of the through hole 101. Each sound-absorbing hole 102 communicates with at least one muffler cavity 103. The aperture Φ of the through hole 101 satisfies the following relationship: Φ = nP.

[0054] Where n is the preset coefficient, P is the stable power of the compressor, Φ is in millimeters, P is in watts, and the preset coefficient is in millimeters / watt. In some embodiments, one sound-absorbing hole 102 communicates with at least one muffler cavity 103. Assuming that five muffler cavities 103 are provided within the muffler body, one sound-absorbing hole 102 communicates with at least one of the five muffler cavities 103.

[0055] The operating principle of the silencer device 100 disclosed herein is as follows: When in use, the silencer device 100 can be placed inside or outside the compressor compartment 300 of a refrigerator, with the through-hole 101 connecting the inside and outside of the compressor compartment 300. As noise within the compressor compartment 300 propagates outward, it passes through the silencer device 100 inside or outside the compressor compartment 300. The noise is then blocked by the sidewalls of the silencer body and enters the silencer cavity 103 through the through-hole 101 and the sound-absorbing holes 102. The silencer cavity 103 significantly reduces the noise.

[0056] Specifically, the walls of the through-holes 101 serve as sound-absorbing surfaces. Furthermore, the through-holes 101 act as heat dissipation channels, transferring heat from the compressor compartment 300 to the exterior of the compressor, thereby dissipating heat from the compressor compartment 300. The size of the heat dissipation channels directly impacts the heat dissipation efficiency. As shown in Figures 7-10, when the compressor compartment 300 lacks a fan, heat dissipation from the compressor compartment 300 relies entirely on natural convection. During operation, the silencer 100 can be installed on the left and right sides of the compressor compartment 300. Once installed, the compressor compartment 300 is essentially sealed, with only the through-holes 101 on the left and right walls of the compressor compartment 300 providing ventilation. Other locations are essentially sealed, with the exception of screw holes or pre-reserved holes on the rear and bottom walls of the compressor compartment 300. Therefore, when the compressor compartment 300 is essentially sealed and lacks a cooling fan, heat dissipation occurs primarily through natural convection through the through-holes 101 on the left and right sides of the compressor compartment 300.

[0057] In the disclosed embodiments, the stable power of the compressor refers to the operating power of the compressor during stable operation. Compressors in different refrigerator models have different stable power ratings. The greater the stable power rating of the compressor, the greater the noise and heat dissipation generated during stable operation. Therefore, the aperture size of through hole 101 in the muffler body is designed based on the stable power rating of the compressor in the disclosed embodiments.

[0058] In the disclosed embodiments, a calculation formula for the aperture size of the through hole 101 of the muffler 100 is provided. This formula can serve as a design standard for the aperture size of the through hole 101 of the muffler 100. This calculation method is applicable to a variety of different models of refrigerators and freezers. Because the aperture size of the through hole 101 of the muffler 100 is designed based on the stable power of the compressor, the muffler 100 can achieve both heat dissipation and noise reduction, thereby improving the user experience.

[0059] In some embodiments of the present disclosure, the preset coefficient has a value range of 0.2 to 0.6 mm / W.

[0060] For example, the preset coefficients may be 0.2, 0.3, 0.4, 0.5, or 0.6 mm / W.

[0061] As shown in Figures 1-5, in some embodiments of the present disclosure, at least one silencer cavity 103 is provided inside the silencer body, and at least one sound absorption hole 102 is opened on the peripheral wall 113 of the through hole 101, and each of the sound absorption holes 102 is connected to at least one of the silencer cavity 103; the silencer body is a split structure, and the silencer body is divided into a first body 110 and a second body 120 along its thickness direction, and the silencer cavity 103 is enclosed by the first body 110 and the second body 120.

[0062] Specifically, during the manufacturing process, the first body 110 and the second body 120 are manufactured separately. After the first and second bodies 110, 120 are manufactured separately, they are assembled together to form the silencer 100. During this separate manufacturing process, multiple silencer cavities 103 of varying lengths, widths, and heights are designed based on noise reduction requirements. These cavities 103 of varying sizes correspond to different noise reduction pressure bands, thereby achieving improved noise reduction performance for the silencer 100.

[0063] In the disclosed embodiment, the split structure of the silencer body facilitates the production and preparation of the first body 110 and the second body 120, reducing the difficulty of production and processing. Therefore, the silencer body provided in the disclosed embodiment is easy to manufacture and assemble, simplifying the manufacturing process and saving costs. Furthermore, in the disclosed embodiment, multiple silencer cavities 103 of different sizes are provided within the silencer body, thereby further facilitating the absorption of noise of different frequencies. Furthermore, since the silencer body comprises the silencer cavity 103, the through hole 101, and the sound-absorbing holes 102, the silencer body not only absorbs and reduces noise but also dissipates heat.

[0064] As shown in Figures 2-5, in some embodiments of the present disclosure, the first body 110 includes a first side panel 111, a peripheral wall 113 and a silencer cavity partition 112 located on the first side panel 111; the second body 120 includes a second side panel 121 and a slot 122 located on the second side panel 121 and plugged into the silencer cavity partition 112. The first side panel 111, the silencer cavity partition 112, the peripheral wall 113 and the second side panel 121 together enclose a through hole 101 and a silencer cavity 103.

[0065] During the manufacturing and assembly process, the first body 110 and the second body 120 are first manufactured separately and then assembled together. Specifically, the muffler cavity baffle 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 is brought into contact with the second side plate 121 of the second body 120. Thus, the first body 110 and the second body 120 together enclose the through hole 101 and the muffler cavity 103.

[0066] In the embodiment of the present disclosure, since the silencer cavity partition 112 is inserted into the slot 122, on the one hand, each silencer cavity 103 can be a closed cavity, thereby improving the sealing effect and noise reduction effect of each silencer cavity 103; on the other hand, it can also play a positioning role, thereby improving the assembly efficiency of the first body 110 and the second body 120.

[0067] As shown in FIG. 5 , in some embodiments of the present disclosure, the muffler cavity partition 112 is perpendicular to the first side panel 111 to facilitate production and manufacturing.

[0068] As shown in FIG. 5 , the peripheral wall 113 is perpendicular to the first side plate 111 , so that the silencer 100 has an aesthetically pleasing appearance and is easy to manufacture.

[0069] In some embodiments of the present disclosure, a ridge 123 is provided on the second side plate 121 to form a slot 122. In some embodiments of the present disclosure, a recess is provided on the surface of the second side plate to form the slot 122.

[0070] In the embodiment of the present disclosure, since the slot 122 is composed of spaced ridges 123, the depth of the slot 122 can be increased, thereby increasing the size of the portion of the muffler cavity partition 112 inserted into the slot 122, thereby further improving the sealing effect and noise reduction effect of each muffler cavity 103.

[0071] In some embodiments of the present disclosure, there is a gap between both side walls of the slot 122 and the corresponding muffler cavity partition 112 .

[0072] In the embodiment of the present disclosure, since the slot 122 and the muffler cavity partition 112 are clearance-matched, the slot 122 can be easily inserted into place, and the sealing of the muffler cavity 103 can be further improved, thereby achieving a better noise reduction effect.

[0073] In some embodiments of the present disclosure, an edge of the peripheral wall 113 away from the first side plate 111 is welded to the second side plate 121 .

[0074] During the manufacturing and assembly process, the muffler cavity 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 is in contact with the second side plate 121 of the second body 120, and then the connection position between the peripheral wall 113 and the second side plate 121 is welded to fix the two together.

[0075] In this embodiment, the welding method can improve the sealing performance of the silencer 100 compared with the fastening connection or the clamping method, so that the silencer 100 can have a better noise reduction effect.

[0076] Furthermore, in some embodiments of the present disclosure, the type of welding is vibration friction welding.

[0077] 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 welding technology that utilizes the heat generated by interface friction caused by the relative vibration of two welds. The welds are placed on a specified device and, under a certain pressure, vibrate on the contact surface to generate friction until the interface begins to melt. The vibration is then stopped and the pressure is maintained until solidification occurs, thereby achieving the welding purpose. By using vibration friction welding, the connection strength between the peripheral wall 113 and the second side plate 121 can be improved, and the welding speed can also be increased. During the welding process, no welding smoke and pollutants such as manganese and nickel that are harmful to the human body are generated.

[0078] In some other embodiments of the present disclosure, the type of welding is ultrasonic welding.

[0079] Specifically, ultrasonic welding is used to securely connect the edge of the peripheral wall 113 away from the first side panel 111 to the second side panel 121. Compared to traditional welding methods, ultrasonic welding offers significant advantages: fast welding speed, high welding efficiency, high weld quality, and aesthetically pleasing welds. The welding process is clean and environmentally friendly, making it ideal for mass production. Therefore, ultrasonic welding is a fast, clean, and efficient assembly process.

[0080] In some embodiments of the present disclosure, the outer contour of the second side plate 121 is larger than the outer contour of the peripheral wall 113 so that the weld or the solder does not extend beyond the second body 120 after welding.

[0081] In this embodiment, since the outer contour of the second side plate 121 is larger than the outer contour of the peripheral wall 113, after welding, the weld or solder between the two will not be at the outermost edge of the silencer 100, thereby making the appearance of the silencer 100 more beautiful.

[0082] In some embodiments of the present disclosure, the outer contour of the second side plate 121 is equal to the outer contour of the peripheral wall 113 .

[0083] In some embodiments of the present disclosure, the fixed connection between the peripheral wall 113 and the second side panel 121 is a fastening connection. For example, connection holes are provided on the edges of the second side panel 121 and the peripheral wall 113 away from the first side panel 111; the muffler cavity 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 is brought into contact with the second side panel 121 of the second body 120. Screws are then inserted into the connection holes to fasten the first body 110 and the second body 120 together. This fastening connection method has the advantages of easy operation and high assembly efficiency.

[0084] In some embodiments of the present disclosure, the fixed connection between the peripheral wall 113 and the second side plate 121 is achieved by snap-fitting.

[0085] In some embodiments of the present disclosure, at least one of the muffler chambers 103 has a labyrinthine structure.

[0086] In this embodiment, compared with the sound-flow structure, honeycomb structure or straight tube structure of the silencer cavity 103, the labyrinth structure of the silencer cavity 103 is deeper, which can significantly extend the sound propagation path and constitute an acoustic superstructure, thereby further improving the noise reduction effect of the silencer device 100.

[0087] In some embodiments of the present disclosure, at least one of the muffler chambers 103 is an acoustic flow structure.

[0088] In some embodiments of the present disclosure, at least one of the muffler cavities 103 has a honeycomb structure.

[0089] In some embodiments of the present disclosure, at least one of the muffler chambers 103 is a straight tube structure.

[0090] In some embodiments of the present disclosure, the sound-absorbing body is a sound-absorbing metamaterial.

[0091] MAT metamaterials (MAT stands for Metamaterial Absorption Technology) utilize a highly effective synthetic material with a complex maze-like pattern. Each channel absorbs specific frequencies, resulting in a sound absorption efficiency of up to 99%. Furthermore, compared to conventional sound-absorbing materials, these metamaterials are chemically more stable and safer, odorless, flexible, fire-retardant, mildew-resistant, and possess a pleasant feel and weight.

[0092] In some embodiments of the present disclosure, the muffler body is made of ABS (Acrylonitrile butadiene styrene) material.

[0093] In some embodiments of the present disclosure, the diameter of the through hole 101 is 10 to 200 mm.

[0094] For example, the diameter of the through hole 101 is 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, 120 mm, 150 mm, 180 mm or 200 mm.

[0095] Specifically, because the through hole 101 in the muffler body serves as both a sound inlet and a heat dissipation hole, a large diameter of the through hole 101 facilitates heat dissipation, but a large diameter results in reduced noise reduction. A small diameter of the through hole 101 facilitates noise reduction, but reduces heat dissipation. Therefore, in this embodiment, by setting the diameter of the through hole 101 to a reasonable size, the muffler device 100 achieves both good noise reduction and good heat dissipation.

[0096] In some embodiments of the present disclosure, a mounting interface 130 for mounting a ventilation grille is provided at the through hole 101. In the disclosed embodiment, the mounting interface 130 is a snap-fit ​​structure, consistent with existing interfaces, for mounting ventilation grilles, improving versatility and practicality, reducing costs, and being applicable to refrigerators of different categories and models.

[0097] As shown in FIG6 , an embodiment of the present disclosure further provides a refrigerator-freezer, comprising a housing 200 . A compressor compartment 300 is disposed within the housing 200 . A muffler 100 as described in any of the above embodiments is also disposed within the housing 200 , wherein a through hole 101 of the muffler 100 communicates with the inner side of the compressor compartment 300 .

[0098] In the embodiment of the present disclosure, by installing a silencer 100 inside a refrigeration and freezing device, the noise inside the refrigeration and freezing device can be reduced, thereby improving the user experience. In addition, the embodiment of the present disclosure provides a calculation formula for the aperture size of the through hole 101 of the silencer 100, which can be used as a design standard for the aperture size of the through hole 101 of the silencer 100. This calculation method can be applied to a variety of different models of refrigeration and freezing devices. Since the aperture of the through hole 101 of the silencer 100 is designed according to the stable power of the compressor, the silencer 100 can take into account both heat dissipation and noise reduction, thereby improving the user experience.

[0099] In some embodiments of the present disclosure, the muffler device 100 is installed on the inner side of the compartment wall of the compressor compartment 300. A through hole corresponding to the through hole 101 is opened on the corresponding compartment wall.

[0100] During use, noise within the compressor compartment 300 propagates from the inside outward, passing through the muffler body. The noise, blocked by the muffler body's sidewalls, enters the muffler cavity 103 via the through-holes 101 and the sound-absorbing holes 102, extending the sound propagation path. The noise is significantly reduced within the muffler cavity 103. Simultaneously, heat within the compressor is transported outside the compressor compartment 300 through the through-holes 101 and the through-holes.

[0101] In other embodiments of the present disclosure, the muffler 100 is installed on the outer side of the compressor compartment 300 wall, and the compartment wall is provided with a through hole corresponding to the through hole 101. The muffler 100 is installed in the through hole.

[0102] During use, noise within the compressor compartment 300 propagates from the inside outward, passing through the muffler body. The noise, obstructed by the muffler body's sidewalls, enters the muffler cavity 103 via the through-holes, through-hole 101, and sound-absorbing holes 102. Within the muffler cavity 103, the noise is significantly reduced. Simultaneously, heat within the compressor is transferred to the exterior of the compressor compartment 300 via the through-holes and through-hole 101. Furthermore, by installing the muffler device 100 within the foam layer surrounding the compressor compartment 300, it takes up no additional refrigerator space, minimizing loss of refrigerator capacity. Furthermore, the installation is stable and impact-resistant, meeting transportation requirements.

[0103] In some embodiments of the present disclosure, the refrigerator-freezer further includes a ventilation grille installed at an end of the through hole 101 that is away from the compressor compartment 300. Furthermore, the ventilation grille is located outside the compressor compartment 300.

[0104] In order to facilitate installation and meet universal requirements, the ventilation grille is installed on the end of the through hole 101 facing away from the compressor compartment 300 through a snap-on structure. The snap-on structure includes a snap-on hole strip, a snap-on protrusion, and a snap buckle. The two ends of the snap-on hole strip are connected to the hole edge of the through hole 101 facing away from the compressor compartment 300 to define a snap-on hole. The snap-on protrusion is arranged in the snap-on hole and connected to the hole edge of the through hole 101 facing away from the compressor compartment 300. The snap buckle is connected to the surface of the ventilation grille facing the compressor compartment 300, inserted into the snap-on hole, and engaged with the snap-on protrusion.

[0105] In some embodiments of the present disclosure, the refrigerator-freezer is a refrigerator.

[0106] The refrigerator is equipped with a refrigeration system comprising a circulation circuit for circulating a refrigerant. The refrigeration system comprises a compressor 301, a condenser, a throttling line, and an evaporator, all connected in series. At least the compressor is housed in a compressor compartment 300. This compartment can be located anywhere in the refrigerator, such as at the bottom, middle, or top.

[0107] In some embodiments, the compressor compartment 300 is located at the bottom of the refrigerator, that is, the compressor compartment 300 is located at the bottom of the cabinet 200 .

[0108] In some embodiments of the present disclosure, the refrigeration and freezing device is a freezer.

[0109] In some embodiments of the present disclosure, the warehouse wall includes a front wall, a rear wall, a top wall, a bottom wall, a left wall, and a right wall. The muffler 100 is installed on at least one of the left wall and the right wall of the warehouse wall.

[0110] In some embodiments, silencers 100 are installed on both the left and right walls of the warehouse.

[0111] As shown in Figures 7 and 8, in some embodiments, the compressor compartment 300 includes a compartment wall, a compressor 301 is provided in the compressor compartment 300, and the silencer 100 is installed on the left and right walls of the compartment wall. The through holes 101 of the two silencer devices 100 are coaxially arranged, that is, the heights of the two through holes 101 are the same.

[0112] In some embodiments of the present disclosure, the through holes of the two silencers are coaxially arranged, and each through hole is both an air inlet and an air outlet, and the heat flow lines are relatively chaotic. Therefore, the symmetrically arranged through holes have a poor heat dissipation effect on the compressor compartment 300, which can easily cause overheating and shutdown and affect the service life of the compressor.

[0113] As shown in Figures 9 and 10, in some embodiments of the present disclosure, a compressor 301 is provided in a compressor compartment 300, and the compressor compartment 300 includes a compartment wall, and the silencer 100 is installed on the left wall and the right wall of the compartment wall, and the through holes 101 of the two silencers 100 are staggered up and down.

[0114] Specifically, the through holes 101 of the two silencers 100 are respectively a first through hole 1011 and a second through hole 1012, with the first through hole 1011 being higher than the second through hole 1012. The compressor compartment 300 has walls including a front wall, a rear wall, a top wall, a bottom wall, a left wall, and a right wall. The compressor compartment 300 is substantially enclosed except for the through holes and through holes 101 on the left and right sides of the compressor compartment 300. Heat is dissipated from the compressor compartment 300 through the through holes 101 on the left and right sides.

[0115] In some embodiments, because the through holes 101 of the two silencers 100 are staggered vertically, forming an asymmetrical structure, in a scenario where there is no cooling fan in the compressor compartment 300 and natural convection is used, which includes the scenario where only the compressor is installed in the compressor compartment 300, when the compressor is operating, the high-temperature air in the compressor compartment 300 flows upward and is discharged from the compressor compartment 300 through the upper through hole 101 (i.e., the first through hole 1011). At the same time, due to the upward flow of the high-temperature air, a negative pressure is generated at the bottom of the compressor compartment 300. Under the influence of atmospheric pressure, external air enters the compressor compartment 300 through the lower through hole 101 (i.e., the second through hole 1102). In other words, the upper through hole 101 (i.e., the first through hole 1011) serves as the air outlet, and the lower through hole 101 (i.e., the second through hole 1102) serves as the air inlet, thereby forming an airflow that penetrates the compressor compartment 300, quickly removing heat from the compressor compartment 300 and further improving the heat dissipation effect. Therefore, under the premise that the through holes 101 adopt the same aperture size, compared with the coaxial arrangement of the through holes 101 of the two silencer devices 100 (as shown in Figures 7-8), in this embodiment, the through holes 101 of the two silencer devices 100 are staggered up and down, which can further improve the heat dissipation efficiency of the compressor compartment 300.

[0116] In some embodiments of the present disclosure, when the through holes 101 of the two muffler devices 100 are vertically staggered, the preset coefficient is a first preset coefficient; when the through holes 101 of the two muffler devices 100 are coaxially arranged, the preset coefficient is a second preset coefficient; the second preset coefficient is equal to the first preset coefficient. Therefore, under the premise that the stable power of the compressor remains unchanged, when the aperture size is calculated according to the formula Φ = nP, the aperture size of the through holes 101 in both cases is the same. Therefore, through the above arrangement, compared with the coaxial arrangement of the two through holes 101, the muffler device 100 can provide a better heat dissipation effect while maintaining the same noise reduction effect by adopting the method of vertically staggered two through holes 101.

[0117] In some embodiments of the present disclosure, when the through holes 101 of the two silencers 100 are staggered up and down, the preset coefficient is a first preset coefficient; when the through holes 101 of the two silencers 100 are coaxially arranged, the preset coefficient is a second preset coefficient; the second preset coefficient is greater than the first preset coefficient.

[0118] Specifically, under the premise that the stable power of the compressor remains unchanged, when calculating the aperture size according to the formula Φ=nP, if the through holes 101 of the two silencers 100 are coaxially arranged, the preset coefficient used is recorded as the second preset coefficient, and the aperture size of the through hole 101 is recorded as the second aperture size; if the through holes 101 of the two silencers 100 are staggered vertically, the preset coefficient used is recorded as the first coefficient, and the aperture size of the through hole 101 is recorded as the first aperture size, and the first preset coefficient is smaller than the second preset coefficient. Therefore, under the premise that the stable power of the compressor remains unchanged, when calculating the aperture size according to the formula Φ=nP, the first aperture size is smaller than the second aperture size; through the above arrangement, compared with the method of arranging the two through holes 101 coaxially, the method of staggering the two through holes 101 vertically can make the silencer 100 have a better noise reduction effect while having the same heat dissipation effect; or, it can make the silencer 100 have better heat dissipation effect and noise reduction effect.

[0119] As shown in Figures 9-10, in some embodiments of the present disclosure, the central axis of the first through hole 1011 is located between the top of the compressor and the top wall of the warehouse wall, and the second through hole 1012 is lower than the first through hole 1011.

[0120] In this embodiment, since the central axis of the first through hole 1011 is located between the top of the compressor and the top wall of the chamber wall, it not only provides a precise reference for the design and manufacture of the first through hole 1011, facilitates the manufacture and assembly of the silencer 100 on the air outlet side of the compressor chamber 300, but also is more conducive to the discharge of high-temperature gas from the compressor chamber 300.

[0121] In some embodiments of the present disclosure, the compressor 301 includes an upper shell 3011 and a lower shell 3012, with a connection area 3013 between the upper shell 3011 and the lower shell 3012; the central axis of the second through hole 1012 is located between the connection area 3013 and the bottom wall of the warehouse wall.

[0122] In this embodiment, the central axis of the second through hole 1012 is located between the connection area 3013 and the bottom wall of the compartment wall. This creates a larger height difference between the first through hole 1011 and the second through hole 1012, which facilitates the entry of cold air into the compressor compartment 300 and extends the flow path of the airflow within the compressor compartment 300, thereby achieving a better heat dissipation effect for the compressor compartment 300. Furthermore, this provides a more precise reference for the design and manufacture of the second through hole 1012, facilitating the manufacture and assembly of the silencer 100 on the air inlet side of the compressor compartment 300 and improving manufacturing accuracy and production efficiency.

[0123] Furthermore, in some embodiments of the present disclosure, as shown in FIG11 , the connection area 3013 between the upper shell 3011 and the lower shell 3012 is a welding area. In other words, the upper shell 3011 and the lower shell 3012 are welded together.

[0124] In some embodiments of the present disclosure, the horizontal distance between the first through hole 1011 and the compressor is smaller than the horizontal distance between the second through hole 1012 and the compressor.

[0125] In this embodiment, since the compressor is located close to the first through hole 1011 (ie, the airflow outlet), it is more conducive to the rapid discharge of high-temperature airflow from the compressor compartment 300, thereby further improving the heat dissipation effect.

[0126] In some alternative embodiments of the present disclosure, the horizontal distance between the first through hole 1011 and the compressor is equal to the horizontal distance between the second through hole 1012 and the compressor. In other words, the compressor is located in the middle of the compressor compartment 300 and is equidistant from both sides of the compressor compartment 300.

[0127] As shown in Figures 12-13, in some embodiments of the present disclosure, a heat dissipation fan 302 is also provided in the compressor compartment 300. The heat dissipation fan 302 is used to blow the air on the air inlet side of the compressor compartment 300 to the air outlet side of the compressor compartment 300. The compressor 301 is located on the air outlet side of the compressor compartment 300.

[0128] Specifically, the first through hole 1011 is located on the air outlet side of the compressor compartment 300, and the second through hole 1012 is located on the air inlet side of the compressor compartment 300. When in use, the heat dissipation fan 302 can blow air from the air inlet side of the compressor through the second through hole 1012 to the first through hole 1011 located on the air outlet side of the compressor compartment 300, so that the air in the compressor compartment 300 flows out quickly from the side close to the compressor.

[0129] In the disclosed embodiment, the compressor 301 is located on the air outlet side of the compressor compartment 300. Under the action of the heat dissipation fan 302, it can draw in air with a lower temperature than the compressor 301 and accelerate the airflow speed within the compressor compartment 300, allowing the heat within the compressor compartment 300 to be quickly discharged. Therefore, compared with a solution in which only the compressor 301 is installed in the compressor compartment 300, the installation of the heat dissipation fan 302 in the compressor compartment 300 can further improve the heat dissipation efficiency of the compressor compartment 300, thereby achieving a better heat dissipation effect.

[0130] As shown in FIG14 , in other embodiments of the present disclosure, the refrigerator-freezer further includes a condenser 303. The condenser 303 is disposed in the compressor compartment 300, the condenser 303 being located on the air inlet side of the compressor compartment 300, and the heat dissipation fan 302 being located between the compressor compartment 300 and the condenser 303. In the embodiment of the present disclosure, the air enters the compressor compartment 300 from the side of the condenser 303, and the heat dissipation fan 302 can dissipate heat from the compressor and the condenser 303 at the same time. In other words, the compressor 301 and the condenser 303 share a heat dissipation fan 302, thereby increasing the storage space of the refrigerator-freezer.

[0131] As shown in FIG15 , in some embodiments, the refrigerator / freezer further includes a condenser 303. The condenser 303 is disposed within the compressor compartment 300, and the heat dissipation fan 302 is located on the air inlet side of the compressor compartment 300. The condenser 303 is located between the compressor compartment 300 and the heat dissipation fan 302. In this embodiment, the heat dissipation fan 302 can dissipate heat from both the compressor 301 and the condenser 303 simultaneously. In other words, the compressor and the condenser 303 share a single heat dissipation fan 302, thereby increasing the storage space of the refrigerator / freezer.

[0132] Furthermore, in some embodiments of the present disclosure, as shown in Figure 13, the compressor includes an upper shell 3011 and a lower shell 3012, with a connection area 3013 between the upper shell 3011 and the lower shell 3012. The central axis of the second through hole 1012 is located between the center position of the heat dissipation fan 302 in the height direction and the bottom wall of the warehouse wall.

[0133] Specifically, the central axis of the second through hole 1012 of the compressor compartment 300 is located between the center position of the heat dissipation fan 302 in the height direction and the center position of the compressor 301 in the height direction.

[0134] In the disclosed embodiment, on the one hand, the height center of the second through hole 1012 (air inlet) is set between the center positions of the heat dissipation fan 302 and the compressor 301 in the height direction, which can maximize the intake of air with a lower temperature than the compressor 301, thereby forming a larger height difference between the first through hole 1011 and the second through hole 1012, which is more conducive to the entry of cold air into the compressor compartment 300 and can extend the flow path of the airflow within the compressor compartment 300, thereby improving the heat dissipation effect. On the other hand, it provides a more accurate reference for the design and manufacture of the second through hole 1012, making it easier to manufacture and assemble the silencer 100 on the air inlet side of the compressor compartment 300, thereby improving manufacturing accuracy and production efficiency.

[0135] In some other embodiments of the present disclosure, as shown in FIG. 14 , the central axis of the second through hole 1012 is located between the center position of the condenser 303 in the height direction and the bottom wall of the bin wall.

[0136] In this embodiment, since the central axis of the second through hole 1012 is located between the center position of the condenser 303 in the height direction and the bottom wall of the warehouse wall, on the one hand, a larger height difference is formed between the first through hole 1011 and the second through hole 1012, which is more conducive to the entry of cold air into the compressor warehouse 300, and can extend the flow path of the airflow in the compressor warehouse 300, thereby improving the heat dissipation effect; on the other hand, it provides a more accurate benchmark for the design and manufacture of the second through hole 1012, which is more convenient for the manufacture and assembly of the silencer 100 on the air inlet side of the compressor warehouse 300, and can improve the manufacturing accuracy and production efficiency.

[0137] At this point, those skilled in the art will recognize that, although multiple exemplary embodiments of the present disclosure have been shown and described in detail herein, many other variations or modifications that are consistent with the principles of the present disclosure can be directly determined or derived from the contents of the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure should be understood and deemed to cover all such other variations or modifications.

Claims

1. A silencing device, characterized in that: include: The muffler body has a through hole on its side wall that penetrates the muffler body, and the aperture of the through hole satisfies the following relationship: Φ=nP, Wherein, Φ is the aperture of the through hole, n is a preset coefficient, and P is the stable power of the compressor.

2. The silencing device according to claim 1, characterized in that: The preset coefficient has a value range of 0.2 to 0.

6.

3. The silencing device according to claim 1, characterized in that: At least one muffler cavity is provided inside the muffler body, and at least one sound-absorbing hole is provided on the peripheral wall of the through hole, and each of the sound-absorbing holes is connected to at least one muffler cavity; The muffler body is divided into a first body and a second body along the thickness direction thereof, and the at least one muffler cavity is formed by enclosing the first body and the second body.

4. The silencing device according to claim 3, characterized in that: The first body comprises a first side plate, a peripheral wall and a muffler cavity partition located on the first side plate; The second body includes a second side plate and a slot located on the second side plate and plugged into the muffler chamber partition. The first side plate, the muffler chamber partition, the peripheral wall and the second side plate together enclose the through hole and the at least one muffler chamber.

5. The silencing device according to claim 4, characterized in that: The second side plate is provided with a convex strip forming the slot.

6. The silencing device according to claim 4, characterized in that: There are gaps between the two side walls of the slot and the muffler chamber partition.

7. The silencing device according to claim 4, characterized in that: The edge of the peripheral wall away from the first side plate is welded to the second side plate; The type of welding is vibration friction welding or ultrasonic welding.

8. The silencing device according to claim 7, characterized in that: The outer contour of the second side plate is larger than the outer contour of the peripheral wall.

9. The silencing device according to claim 3, characterized in that: The at least one muffler cavity is in a labyrinth structure, an acoustic flow structure, a honeycomb structure, or a straight tube structure; The sound-absorbing body is a sound-absorbing metamaterial.

10. The silencing device according to claim 1, characterized in that: The aperture of the through hole is 10 to 200 mm; The through hole is provided with an installation and assembly interface for installing the ventilation grille.

11. A refrigeration and freezing device, characterized in that: Including the box, A compressor compartment is provided in the box body. The housing is further provided with a silencer as described in any one of claims 1 to 10, wherein the through hole of the silencer is connected to the inner side of the compressor compartment.

12. The refrigerator-freezer according to claim 11, characterized in that: The silencer is installed on the inner side of the compressor compartment wall; or, The silencer is installed on the outer side of the compressor compartment wall, and the corresponding compartment wall is provided with The through hole corresponds to the set through hole.

13. The refrigerator-freezer according to claim 12, characterized in that: The compressor compartment includes a compartment wall, the compressor is arranged in the compressor compartment, two silencers are arranged in the box body, a first silencer of the two silencers is installed on the left wall of the compartment wall, and a second silencer of the two silencers is installed on the right wall of the compartment wall, a first through hole of the first silencer and a second through hole of the second silencer are staggered up and down, or the first through hole of the first silencer and the second through hole of the second silencer are coaxially arranged.

14. The refrigerator-freezer according to claim 13, characterized in that: When the first through hole of the first muffler device and the second through hole of the second muffler device are staggered up and down, the preset coefficient is a first preset coefficient; When the first through hole of the first muffler device and the second through hole of the second muffler device are coaxially arranged, the preset coefficient is a second preset coefficient; The second preset coefficient is greater than or equal to the first preset coefficient.

15. The refrigerator-freezer according to claim 13, characterized in that: The central axis of the first through hole is located between the top of the compressor and the top wall of the warehouse wall. When the first through hole of the first silencer device and the second through hole of the second device are staggered up and down, the second through hole is lower than the first through hole.

16. The refrigerator-freezer according to claim 15, characterized in that: The compressor comprises an upper shell and a lower shell, wherein a connection area is provided between the upper shell and the lower shell; The central axis of the second through hole is located between the connecting area and the bottom wall of the bin wall.

17. The refrigerator-freezer according to claim 13, characterized in that: A horizontal distance between the first through hole and the compressor is smaller than a horizontal distance between the second through hole and the compressor.

18. The refrigerator-freezer according to claim 13, characterized in that: A heat dissipation fan is also provided in the compressor compartment, and the heat dissipation fan is used to blow the wind on the air inlet side of the compressor compartment to the air outlet side of the compressor compartment, and the compressor is located on the air outlet side of the compressor compartment.

19. The refrigerator-freezer according to claim 18, characterized in that: It also includes a condenser, The condenser is arranged on the air inlet side of the compressor compartment, and the heat dissipation fan is located between the compressor compartment and the condenser; or, The heat dissipation fan is located at the air inlet side of the compressor compartment, and the condenser is located between the compressor compartment and the heat dissipation fan.

20. The refrigerator-freezer according to claim 19, characterized in that: The compressor comprises an upper shell and a lower shell, wherein a connection area is provided between the upper shell and the lower shell; The central axis of the second through hole is located between the central position of the heat dissipation fan in the height direction and the bottom wall of the warehouse wall.

21. The refrigerator-freezer according to claim 19, characterized in that: The central axis of the second through hole is located between the center position of the condenser in the height direction and the bottom wall of the warehouse wall.

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