Noise reduction assembly, refrigerating system and refrigerating equipment

Abstract

The utility model provides a noise reduction assembly, a refrigerating system and refrigerating equipment, the noise reduction assembly is used for the refrigerating system, the refrigerating system comprises a capillary tube, an evaporation tube and the noise reduction assembly, the noise reduction assembly comprises a first noise elimination assembly and a second noise elimination assembly, the first noise elimination assembly comprises a tube body, and the tube body is provided with a first end and a second end which are oppositely arranged in the length direction; the inner diameter of the pipe body is gradually increased from the first end to the second end, and the first end is used for being connected with the capillary tube so as to be used for reducing noise of a refrigerant flowing into the first silencing assembly from the capillary tube; the second silencing assembly is used for being arranged between the second end and the evaporation pipe and used for reducing noise of a refrigerant flowing from the first silencing assembly to the evaporation pipe, and the pipe body can reduce the possibility that the phenomena of angle vortexes and falling vortexes are generated due to sudden change of the inner diameter of the pipe body; the second silencing assembly can conduct secondary noise reduction on the refrigerant flowing to the evaporator from the capillary tube, and therefore the noise reduction effect can be improved.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, and in particular to a noise reduction component, a refrigeration system and a refrigeration device. Background Art

[0002] In the refrigeration system, the capillary tube is connected to the evaporator, and the refrigerant is converted from liquid to gas in the evaporator to achieve heat transfer. However, since the inner diameter of the evaporator tube of the evaporator is larger than the inner diameter of the capillary tube, a supersonic jet phenomenon will be generated at the connection between the capillary tube and the evaporator tube, resulting in violent mixing of the gas-liquid two phases, causing jet noise and bubbling sound, seriously affecting the quiet effect of the refrigerator.

[0003] In the related art, a connecting tube is arranged outside the capillary tube and the evaporator tube, and sound-absorbing material is filled between the inner wall of the connecting tube and the outer walls of the capillary tube and the evaporator tube. The sound-absorbing material is used to absorb the noise of the refrigerant flowing from the capillary tube to the evaporator tube. However, due to the large jet noise and bubbling sound, the sound-absorbing material arranged outside the capillary tube and the evaporator tube can only absorb part of the noise and cannot suppress the generation of noise. The noise reduction effect is not good. How to improve the noise reduction effect is a technical problem that needs to be urgently solved in this field. Utility Model Content

[0004] In view of the above problems, the present application provides a noise reduction component, a refrigeration system and a refrigeration device to solve the technical problem that the noise reduction effect of the noise reduction component in the prior art is poor.

[0005] In order to solve the above technical problems, the technical solution adopted in this application is as follows:

[0006] In a first aspect, the present application provides a noise reduction component for a refrigeration system, the refrigeration system comprising a capillary tube, an evaporating tube and the noise reduction component, the noise reduction component comprising: a first silencer component comprising a tube body, the tube body having a first end and a second end relatively arranged in a length direction, the inner diameter of the tube body gradually increasing from the first end to the second end, the first end being used to connect the capillary tube so as to reduce the noise of the refrigerant flowing from the capillary tube into the first silencer component; a second silencer component being used to be arranged between the second end and the evaporating tube so as to reduce the noise of the refrigerant flowing from the first silencer component to the evaporating tube.

[0007] Wherein, the angle between the inner side wall of the tube body and the central axis of the tube body is less than or equal to 6°.

[0008] Wherein, the first silencer assembly further includes a first connecting tube, and the first connecting tube is used to connect between the capillary tube and the first end, and the first connecting tube, the tube body and the second silencer assembly are coaxially arranged.

[0009] Wherein, the first connecting tube is cylindrical, and the inner diameter of the first connecting tube is equal to the inner diameter of the first end; or the first connecting tube is conical, the inner diameter of the first connecting tube gradually increases in the direction from the capillary to the tube body, and the inner diameter of one end of the first connecting tube close to the tube body is equal to the inner diameter of the first end.

[0010] Wherein, the noise reduction component also includes a buffer layer, which covers the outer surface of the tube body; or covers the outer surface of the tube body and extends from the outer surface of the tube body to both sides to cover at least part of the first connecting pipe and at least part of the second silencer component; or covers the outer surfaces of the tube body, the first connecting pipe and the second silencer component.

[0011] Wherein, the second silencer assembly comprises a second connecting pipe, a cavity and a third connecting pipe which are connected in sequence, wherein the end of the second connecting pipe away from the cavity is connected to the second end, the end of the third connecting pipe away from the cavity is connected to the evaporating tube, and the second connecting pipe, the cavity and the third connecting pipe are coaxially arranged.

[0012] The inner diameters of the second connecting pipe and the third connecting pipe are equal, and the ratio of the flow area of ​​the cavity to the flow area of ​​the second connecting pipe is greater than or equal to 2.

[0013] Wherein, the second muffler assembly includes a damping member, and the damping member is arranged in the cavity, between the second connecting pipe and the cavity, or between the cavity and the third connecting pipe.

[0014] In a second aspect, the present application provides a refrigeration system, comprising a capillary tube, an evaporating tube and the noise reduction component as described above.

[0015] In a third aspect, the present application provides a refrigeration device, comprising the noise reduction component as described above or the refrigeration system as described above.

[0016] Different from the prior art, the beneficial effects of the embodiments of the present application are as follows: the present application provides a noise reduction component, a refrigeration system and a refrigeration device, the noise reduction component is used for the refrigeration system, the refrigeration system includes a capillary tube, an evaporating tube and a noise reduction component, the noise reduction component includes a first silencer component and a second silencer component, the first silencer component includes a tube body, the tube body has a first end and a second end relatively arranged in the length direction, the inner diameter of the tube body gradually increases from the first end to the second end, the first end is used to connect the capillary tube to reduce the noise of the refrigerant flowing from the capillary tube into the first silencer component; the second silencer component is used to be arranged between the second end and the evaporating tube to reduce the noise of the refrigerant flowing from the first silencer component to the evaporating tube. The present application connects the capillary tube and the second silencer assembly by means of a tube body whose inner diameter gradually increases from the first end to the second end for connecting the capillary tube. The gradual change in the inner diameter of the tube body can reduce the possibility of angular vortices and shedding vortices caused by a sudden change in the inner diameter of the tube body, thereby reducing the generation of secondary noise. The present application further arranges a second silencer assembly between the second end of the tube body and the evaporator, which can perform secondary noise reduction on the refrigerant flowing from the capillary tube to the evaporator, thereby improving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a noise reduction component provided by the present application;

[0019] Figure 2 is a structural schematic diagram of another embodiment of the noise reduction component provided by the present application;

[0020] Figure 3 is a cross-sectional view of another embodiment of the noise reduction assembly provided by the present application;

[0021] Figure 4 is a cross-sectional view of a third embodiment of the noise reduction component provided in the present application;

[0022] Figure 5 It is a schematic diagram comparing the transmission loss curves of the noise reduction component provided by the present application and the comparative example;

[0023] Figure 6 It is a structural schematic diagram of an embodiment of the noise reduction component provided by the present application including a plurality of second noise reduction components;

[0024] Figure 7is a structural schematic diagram of another embodiment of the noise reduction component provided by the present application including a plurality of second noise reduction components;

[0025] Figure 8 It is a structural schematic diagram of the refrigeration equipment provided in this application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is 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 being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of a noise reduction component provided by the present application. The present application provides a noise reduction component 100. The noise reduction component 100 is used in a refrigeration system, and the refrigeration system includes a capillary tube, an evaporating tube and a noise reduction component 100. The evaporating tube can be an evaporating tube of an evaporator of a refrigeration system. The noise reduction component 100 can be arranged between the capillary tube and the evaporating tube. The noise reduction component 100 is used to gradually decelerate the refrigerant flowing out of the capillary tube, which can reduce the possibility of angular vortices and shedding vortices caused by a sudden change in the inner diameter of the tube body, suppress the generation of jet noise and bubbling noise, and can reduce the noise of the refrigerant in a specific frequency band to achieve a wide-band silencing effect, thereby realizing secondary noise reduction of the noise of the refrigerant flowing from the capillary tube to the evaporating tube, and further improving the noise reduction effect.

[0032] The noise reduction assembly 100 includes a first muffler assembly 10 and a second muffler assembly 20. The first muffler assembly 10 includes a tube body 11, and the tube body 11 has a first end 111 and a second end 112 arranged opposite to each other in the length direction. The inner diameter of the tube body 11 gradually increases from the first end 111 to the second end 112. The first end 111 of the tube body 11 is used to connect a capillary tube to reduce the noise of the refrigerant flowing from the capillary tube into the first muffler assembly 10, and the second muffler assembly 20 is used to be arranged between the second end 112 and the evaporation tube to reduce the noise of the refrigerant flowing from the first muffler assembly 10 to the evaporation tube.

[0033] The inner diameter of the tube body 11 gradually increases from the first end 111 to the second end 112. The gradual change in the inner diameter of the tube body 11 can gradually slow down the speed of the refrigerant flowing from the capillary tube into the first silencer assembly 10, so the speed of the refrigerant will not drop suddenly. This not only reduces the possibility of generating angular vortices and shedding vortices due to the inner diameter of the evaporating tube being larger than the inner diameter of the capillary tube, but also suppresses the generation of supersonic jet phenomena, thereby suppressing the generation of jet noise and bubbling sounds. In addition, the second silencer assembly 20 is arranged between the second end 112 and the evaporating tube, which can perform secondary noise reduction on the refrigerant flowing from the capillary tube to the evaporator, thereby improving the noise reduction effect.

[0034] The noise reduction component 100 provided in the present application connects the capillary and the second silencer component 20 through a tube body 11 whose inner diameter gradually increases from the first end 111 for connecting the capillary to the second end 112. The gradual change in the inner diameter of the tube body 11 can reduce the possibility of angular vortices and shedding vortices caused by sudden changes in the inner diameter of the tube body 11, thereby reducing the generation of secondary noise; and the present application further sets a second silencer component 20 between the second end 112 of the tube body 11 and the evaporator, which can perform secondary noise reduction on the refrigerant flowing from the capillary to the evaporator, thereby improving the noise reduction effect.

[0035] In some embodiments, the angle between the inner wall of the tube body 11 and the central axis of the tube body 11 is less than or equal to 6°.

[0036] It can be understood that since the inner diameter of the tube body 11 gradually increases from the first end 111 to the second end 112, an angle is formed between the inner side wall of the tube body 11 and the central axis of the tube body 11. The angle between the inner side wall of the tube body 11 and the central axis of the tube body 11 can be 0.5°, 0.85°, 1°, 1.25°, 1.5°, 1.75°, 2°, 2.3°, 2.55°, 2.68°, 2.84°, 3°, 3.18°, 3.5°, 3.69°, 3.9°, 4°, 4.33°, 4.5°, 4.87°, 5° , 5.2°, 5.55°, 5.8°, 5.89°, 6°, etc., or a range consisting of any two of the above values, for example, it can be 0.5°-3°, 0.5°-5°, 1°-2°, 1°-4°, 2°-3°, 2°-5°, 2°-6°, 3.5°-5°, 4°-5°, 5°-6°, etc. The angle between the inner side wall of the tube body 11 and the central axis of the tube body 11 can be selected according to actual needs, as long as the angle between the inner side wall of the tube body 11 and the central axis of the tube body 11 is less than or equal to 6°.

[0037] In the technical solution of the embodiment of the present application, the angle between the inner wall of the tube body 11 and the central axis of the tube body 11 is within a range of less than or equal to 6°, so that the inner diameter of the tube body 11 increases relatively smoothly from the first end 111 to the second end 112, and the change of the inner diameter of the tube body 11 from the first end 111 to the second end 112 is within a reasonable range, which can ensure that the inner diameter of the tube body 11 will not suddenly increase, and the tube body 11 can gradually decelerate the speed of the refrigerant flowing from the capillary tube to the evaporator tube, and the speed of the refrigerant flowing from the capillary tube through the tube body 11 to the evaporator tube will not drop suddenly, thereby reducing the possibility of generating corner vortices and shedding vortices, suppressing the generation of jet noise and bubbling sound, and improving the noise reduction effect.

[0038] In some embodiments, please refer to Figures 2 to 3 , Figure 2 is a structural schematic diagram of another embodiment of the noise reduction component provided by the present application; Figure 3 1 is a cross-sectional view of another embodiment of the noise reduction assembly provided in the present application; the noise reduction assembly 100 further includes a first connecting tube 12. The first connecting tube 12 is used to connect between the capillary tube and the first end 111. The first connecting tube 12, the tube body 11 and the second muffler assembly 20 are coaxially arranged.

[0039] The length of the tube body 11 in the length direction is greater than the length of the first connecting tube 12 in the length direction. The first connecting tube 12 is used to increase the connection strength between the noise reduction component 100 and the capillary tube, and to support the capillary tube so that the deformation of the capillary tube at the connection between the capillary tube and the noise reduction component 100 is reduced, ensuring that the refrigerant can flow from the capillary tube to the noise reduction component 100 in a horizontal flow manner, reducing the possibility of turbulence of the refrigerant at the connection between the capillary tube and the noise reduction component 100, and improving the noise reduction effect of the noise reduction component 100.

[0040] In some embodiments, the inner diameter of the first connecting tube 12 is equal to the inner diameter of the capillary tube, and the end of the first connecting tube 12 away from the first end 111 is butt-jointed with the capillary tube. The first connecting tube 12 and the capillary tube may be butt-jointed by welding or bonding, but is not limited thereto.

[0041] In some embodiments, the inner diameter of the first connecting tube 12 is larger than the outer diameter of the capillary tube, and the capillary tube can be inserted into the first connecting tube 12, thereby improving the connection strength between the noise reduction component 100 and the capillary tube, thereby suppressing the jittering sound generated when the refrigerant enters the noise reduction component 100 from the capillary tube. At the same time, the deformation of the capillary tube at the connection between the capillary tube and the noise reduction component 100 is reduced, ensuring that the refrigerant can flow from the capillary tube to the noise reduction component 100, reducing the possibility of turbulence of the refrigerant at the connection between the capillary tube and the noise reduction component 100.

[0042] In some embodiments, the first connecting tube 12 is cylindrical, and the inner diameter of the first connecting tube 12 is equal to the inner diameter of the first end 111 .

[0043] The inner diameter of the first connecting tube 12 is equal to the inner diameter of the first end 111, that is, the flow area of ​​the first connecting tube 12 is equal to the flow area of ​​the first end 111, so that when the refrigerant enters the tube body 11 from the first connecting tube 12, the refrigerant can smoothly pass through the connection between the first connecting tube 12 and the tube body 11, reducing the noise generated when the refrigerant passes through the connection between the first connecting tube 12 and the tube body 11.

[0044] In some embodiments, the first connecting tube 12 is conical, and the inner diameter of the first connecting tube 12 gradually increases in the direction from the capillary to the tube body 11 , and the inner diameter of one end of the first connecting tube 12 close to the tube body 11 is equal to the inner diameter of the first end 111 .

[0045] The inner diameter of the first connecting tube 12 gradually increases in the direction from the capillary to the tube body 11, and the inner diameter of the end of the first connecting tube 12 close to the tube body 11 is equal to the inner diameter of the first end 111, that is, the flow area of ​​the first connecting tube 12 gradually increases in the direction from the capillary to the tube body 11, and the flow area of ​​the end of the first connecting tube 12 close to the tube body 11 is equal to the flow area of ​​the first end 111. This can not only avoid a sudden drop in the speed of the refrigerant and suppress the generation of jet noise and bubbling sound, but also enable the refrigerant to smoothly pass through the connection between the first connecting tube 12 and the tube body 11 when entering the tube body 11 from the first connecting tube 12, thereby reducing the noise generated when the refrigerant passes through the connection between the first connecting tube 12 and the tube body 11.

[0046] In some embodiments, please refer to Figure 4 , Figure 4 1 is a cross-sectional view of the third embodiment of the noise reduction assembly provided by the present application; the noise reduction assembly 100 further includes a buffer layer 30. The buffer layer 30 covers the outer surface of the tube body 11; or covers the outer surface of the tube body 11 and extends from the outer surface of the tube body 11 to both sides to cover at least part of the first connecting pipe 12 and at least part of the second muffler assembly 20; or covers the outer surfaces of the tube body 11, the first connecting pipe 12 and the second muffler assembly 20.

[0047] Optionally, the buffer layer 30 covers the outer surface of the tube body 11 .

[0048] Optionally, the buffer layer 30 covers the outer surface of the tube body 11 , and extends from the outer surface of the tube body 11 to both sides to cover at least a portion of the first connecting pipe 12 and at least a portion of the second muffler assembly 20 .

[0049] Optionally, the buffer layer 30 covers the outer surfaces of the pipe body 11 , the first connecting pipe 12 and the second muffler assembly 20 .

[0050] By providing the buffer layer 30, the buffer layer 30 can buffer the impact force of the refrigerant on the tube body 11, the first connecting tube 12 and / or the second silencer assembly 20, thereby reducing the structural vibration noise of the noise reduction assembly 100. At the same time, the buffer layer 30 can also absorb the noise generated by the refrigerant flowing from the capillary tube to the evaporating tube, thereby further enhancing the noise reduction effect of the noise reduction assembly 100.

[0051] The material of the buffer layer 30 is selected from shock-absorbing and damping materials. For example, the material of the buffer layer 30 can be butyl rubber, nitrile rubber, sound-absorbing cotton, polyurethane foam, etc., but is not limited thereto.

[0052] In some embodiments, the second muffler assembly 20 includes a second connecting pipe 21, a cavity 22, and a third connecting pipe 23 that are connected in sequence. The end of the second connecting pipe 21 that is away from the cavity 22 is connected to the second end 112. The end of the third connecting pipe 23 that is away from the cavity 22 is connected to the evaporation pipe. The second connecting pipe 21, the cavity 22, and the third connecting pipe 23 are coaxially arranged.

[0053] The first connecting tube 12, the tube body 11 and the second silencer assembly 20 are coaxially arranged, and the second connecting tube 21, the cavity 22 and the third connecting tube 23 are coaxially arranged, that is, the first connecting tube 12, the tube body 11, the second connecting tube 21, the cavity 22 and the third connecting tube 23 are coaxially arranged, thereby reducing the possibility of generating angular vortices, and at the same time allowing the refrigerant entering the noise reduction assembly 100 from the capillary tube to pass through the noise reduction assembly 100 smoothly, thereby reducing the generation of secondary noise.

[0054] The second connecting pipe 21, the cavity 22 and the third connecting pipe 23 may be an integrally formed structure, thereby ensuring the structural strength and stability of the second muffler assembly 20, while also ensuring the consistency of the second muffler assembly 20, thereby reducing the generation of secondary noise.

[0055] In some embodiments, the inner diameters of the second connecting tube 21 and the third connecting tube 23 are equal, and the ratio of the flow area of ​​the cavity 22 to the flow area of ​​the second connecting tube 21 is greater than or equal to 2.

[0056] The ratio of the flow area of ​​the cavity 22 to the flow area of ​​the second connecting pipe 21 can be 2, 2.5, 3, 4, 4.5, 4.85, 5, 5.65, 5.88, 7, 7.31, 7.75, 8, 8.58, 8.89, 9, 9.15, 9.4, 9.55, 9.8, 10, 10.2, 10.5, 10.75, 11, 11.3, 11.5, 11.77, 12, 12.3, 12.6, 12.8, 13, 13.6, 13.975, 14, 14.5, 15, 15.55, 15.8, 16, 16.3, 16.5, 17, 17.35, 17.8, 18, 18.5, 19, 19.68, 20, 20.5, 21, 2 1.5, 22, 22.45, 22.88, 23, 23.357, 23.5, 24, 24.55, 25, 25.558, 26, 27, 27.5, 28, 28.5, 29, 30, etc., or a range consisting of any two of the above values, for example, it can be 2-5, 2-9, 5-9, 5-15, 7-10, 9-15.55, 9-20, 9-25, 9.55-22.88, 10-20, 10-23.5, 20-30, 26-30, etc. The ratio of the flow area of ​​the cavity 22 to the flow area of ​​the second connecting pipe 21 can be selected according to actual needs, as long as the ratio of the flow area of ​​the cavity 22 to the flow area of ​​the second connecting pipe 21 is greater than or equal to 2.

[0057] In some embodiments, the inner diameter of the second connecting tube 21 is equal to the inner diameter of the second end 112 .

[0058] By making the inner diameter of the second connecting tube 21 equal to the inner diameter of the second end 112, the refrigerant can flow smoothly into the second connecting tube 21 from the second end 112 of the tube body 11, thereby reducing the noise generated by the refrigerant passing through the connection between the second end 112 and the second connecting tube 21.

[0059] In some embodiments, the second muffler assembly 20 includes a damping member disposed in the cavity 22 , between the second connecting pipe 21 and the cavity 22 , or between the cavity 22 and the third connecting pipe 23 .

[0060] The damping member can be arranged in the cavity 22, or between the second connecting pipe 21 and the cavity 22; or between the cavity 22 and the third connecting pipe 23. The damping member can be a sound-absorbing material, for example, the damping member can be a micro-perforated plate or a porous filling material, but is not limited thereto. The micropores on the micro-perforated plate can allow the refrigerant to pass through. The micro-perforated plate has a high sound absorption coefficient and a wide absorption bandwidth, and can achieve a broadband sound absorption effect. The setting of the micro-perforated plate can achieve the purpose of further noise reduction and silencing. The porous filling material can be filled in the cavity 22. The porous filling material has a certain porosity, so that the refrigerant can pass through the porous filling material. The porous coating can not only buffer the impact force of the refrigerant on the cavity 22 and reduce pipeline vibration, but also can be used to absorb various noises and improve the noise reduction effect.

[0061] In some embodiments, the noise reduction assembly 100 further includes a plurality of buffer tube segments (not shown). The buffer tube segments may be disposed between the capillary tube and the first connecting tube 12, between the first connecting tube 12 and the first end 111 of the tube body 11, between the second end 112 of the tube body 11 and the second connecting tube 21, and / or between the second connecting tube 21 and the evaporation tube. The buffer tube segments are chamfered, which can not only improve the airtightness between two adjacent components, but also prevent the eddy current noise generated by the background airflow.

[0062] The second muffler assembly 20 may be an expansion chamber resonance muffler, and the transmission loss calculation formula of the second muffler assembly 20 is:

[0063]

[0064] Among them, the second muffler component 20 muffler frequency f w for:

[0065] According to the transmission loss calculation formula of the second muffler assembly 20 and the muffler frequency f of the second muffler assembly 20 w The calculation formula shows that the transmission loss and the silencing frequency f of the second silencing component 20 are affected by w The parameters include the flow area S1 of the second connecting pipe 21, the flow area S2 of the cavity 22, and the length l of the cavity 22. By designing and adjusting the flow area S1 of the second connecting pipe 21, the flow area S2 of the cavity 22, and the length l of the cavity 22 of the second muffler assembly 20, the second muffler assembly 20 can reduce the refrigerant noise in a specific frequency band and achieve a wide-band muffler effect, thereby meeting the noise reduction requirements and improving the user experience.

[0066] In some embodiments, the flow area S1 of the second connecting pipe 21 may be 10-30 mm 2 For example, the flow area S1 of the second connecting pipe 21 may be 10 mm 2 、10.55mm2 、10.8mm 2 、11mm 2 、11.625mm 2 、11.83mm 2 , 12mm 2 , 12.5mm 2 、13mm 2 , 13.5mm 2 、13.9mm 2 、14.7mm 2 , 15mm 2 、15.55mm 2 、15.862mm 2 、16mm 2 、16.8mm 2 、17mm 2 、17.56mm 2 、18mm 2 、18.86mm 2 、19mm 2 、19.35mm 2 、19.625mm 2 , 20mm 2 , 20.5mm 2 , 21mm 2 , 23mm 2 , 25mm 2 、28mm 2 , 30mm 2 etc., but not limited to.

[0067] In some embodiments, the flow area S2 of the cavity 22 may be 130-220 mm 2 For example, the flow area S2 of the cavity 22 may be 130 mm 2 、135mm 2 、140mm 2 、145.75mm 2 , 150mm 2 、156mm 2 、158.88mm 2 、160mm 2 、168mm 2 、170mm 2 、175mm 2 、176.625mm 2 、177mm 2 、178.5mm 2 、180mm 2 、185mm 2 、188.56mm2 、190mm 2 、195mm 2 , 200mm 2 、205.65mm 2 , 210mm 2 、210.5mm 2 、215.88mm 2 、220mm 2 etc., but not limited to.

[0068] In some embodiments, the length l of the cavity 22 can be 10-35mm. For example, the length l of the cavity 22 can be 10mm, 10.5mm, 11mm, 11.8mm, 12.5mm, 13mm, 13.625mm, 14mm, 15mm, 15.9mm, 16.5mm, 17mm, 18mm, 18.5mm, 19mm, 19.5mm, 20mm, 22.5mm, 23mm, 25mm, 25.5mm, 26.8mm, 27mm, 30mm, 32.8mm, 33mm, 33.6mm, 34mm, 35mm, etc., but is not limited to this.

[0069] In some embodiments, see Figure 5 , Figure 5 : is a schematic diagram comparing the transmission loss curves of the noise reduction component provided by the present application and the comparative example; wherein, Figure 5 The curve A in FIG. 1 represents that the noise reduction assembly 100 includes the first muffler assembly 10 and the second muffler assembly 20, and the flow area S1 of the second connecting pipe 21 is 19.625 mm 2 , the flow area S2 of the cavity 22 is 179.625mm 2 , the transmission loss curve when the length l of the cavity 22 is 19 mm, Figure 5 The curve B in the figure represents the transmission loss curve of the noise reduction assembly 100 including the first muffler assembly 10. In the embodiment of the present application, the flow area S1 of the second connecting pipe 21 of the second muffler assembly 20, the flow area S2 of the cavity 22, and the length l of the cavity 22 can be designed and adjusted, so that the second muffler assembly 20 can not only reduce the refrigerant noise in a specific frequency band, but also achieve a wide-band muffler effect, thereby further improving the noise reduction effect.

[0070] The number of the second muffler assembly 20 can be one, and of course, the number of the second muffler assembly 20 can also be multiple. For example, the number of the second muffler assembly 20 can be one, two, three, five, seven, eight, etc., but is not limited thereto. When the number of the second muffler assembly 20 is multiple, the multiple second muffler assemblies 20 can be sequentially arranged between the first muffler assembly 10 and the evaporation tube, or at least one second muffler assembly 20 is arranged between the capillary tube and the first muffler assembly 10, and the remaining second muffler assemblies 20 are arranged between the first muffler assembly 10 and the evaporation tube. The following embodiments take the number of the second muffler assembly 20 as an example to illustrate the case where the number of the second muffler assembly 20 is multiple.

[0071] Please also read Figure 6 , Figure 6 1 is a structural schematic diagram of an embodiment of a noise reduction assembly provided by the present application including a plurality of second muffler assemblies. In some embodiments, when the number of the second muffler assemblies 20 is two, the two second muffler assemblies 20 can be sequentially arranged between the first muffler assembly 10 and the evaporation tube. The inner diameters of the second connecting pipe 21 and the third connecting pipe 23 of the two second muffler assemblies 20 can be equal, or the inner diameters of the second connecting pipe 21 and the third connecting pipe 23 of the second muffler assembly 20 connected to the first muffler assembly 10 can be smaller than the inner diameters of the second connecting pipe 21 and the third connecting pipe 23 of the second muffler assembly 20 connected to the evaporation tube, and the inner diameters of the second connecting pipe 21 and the third connecting pipe 23 of the second muffler assembly 20 connected to the first muffler assembly 10 can be equal to the inner diameter of the second end 112 of the tube body 11, or slightly larger than the inner diameter of the second end 112, and the inner diameters of the second connecting pipe 21 and the third connecting pipe 23 of the second muffler assembly 20 connected to the evaporation tube can be equal to the inner diameter of the evaporation tube, or slightly smaller than the inner diameter of the evaporation tube.

[0072] Please also read Figure 7 , Figure 7 : is a structural schematic diagram of another embodiment of the noise reduction component provided by the present application including multiple second silencer components. In some embodiments, when the number of the second silencer components 20 is two, one of the second silencer components 20 is arranged between the capillary tube and the first silencer component 10, and the other second silencer component 20 is arranged between the first silencer component 10 and the evaporation tube. The inner diameter of the second connecting pipe 21 and the third connecting pipe 23 of the second silencer component 20 connected to the capillary tube can be equal to the inner diameter of the capillary tube, or slightly larger than the inner diameter of the capillary tube. The inner diameter of the second connecting pipe 21 and the third connecting pipe 23 of the second silencer component 20 connected to the evaporation tube can be equal to the inner diameter of the evaporation tube, or slightly smaller than the inner diameter of the evaporation tube.

[0073] In other embodiments, when the number of the second muffler components 20 is two, the two second muffler components 20 can be sequentially disposed between the capillary tube and the first muffler component 10 .

[0074] By providing a plurality of second silencer components 20, the noise of the refrigerant flowing from the capillary tube to the evaporating tube can be reduced multiple times, and the noise reduction effect is more significant.

[0075] The present application also provides a refrigeration system. The refrigeration system includes a capillary tube, an evaporation tube, and a noise reduction component 100 in any of the above embodiments. The noise reduction component 100 is arranged between the capillary tube and the evaporation tube.

[0076] In the embodiment of the present application, the specific structure of the noise reduction component 100 refers to the above embodiment. Since the refrigeration system adopts all the technical solutions of all the embodiments of the noise reduction component 100, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0077] See also Figure 8 , Figure 8 1 is a schematic diagram of the structure of the refrigeration device provided in the present application. The present application also provides a refrigeration device 1000. The refrigeration device 1000 includes the refrigeration system in any of the above embodiments or the noise reduction component 100 in any of the above embodiments. The refrigeration device 1000 may be a refrigerator or an air conditioner, but is not limited thereto.

[0078] In the embodiment of the present application, the specific structures of the noise reduction component 100 and the refrigeration system refer to the above-mentioned embodiment. Since the refrigeration equipment 1000 adopts all the technical solutions of all the embodiments of the above-mentioned noise reduction component 100 or the above-mentioned refrigeration system, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which are not described one by one here.

[0079] The present application provides a noise reduction component, a refrigeration system and a refrigeration device, the noise reduction component is used for a refrigeration system, the refrigeration system includes a capillary tube, an evaporating tube and the noise reduction component, the noise reduction component includes: a first silencer component, including a tube body, the tube body has a first end and a second end arranged opposite to each other in the length direction, the inner diameter of the tube body gradually increases from the first end to the second end, the first end is used to connect the capillary tube, so as to reduce the noise of the refrigerant flowing from the capillary tube into the first silencer component; a second silencer component is used to be arranged between the second end and the evaporating tube, so as to reduce the noise of the refrigerant flowing from the first silencer component to the evaporating tube, the tube body can reduce the possibility of angular vortex and shedding vortex phenomenon caused by sudden change in the inner diameter of the tube body, and the second silencer component can perform secondary noise reduction on the refrigerant flowing from the capillary tube to the evaporator, thereby improving the noise reduction effect.

[0080] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A noise reduction component, characterized in that: Used in a refrigeration system, the refrigeration system comprises a capillary tube, an evaporating tube and the noise reduction component, the noise reduction component comprises: A first muffler assembly, comprising a tube body, the tube body having a first end and a second end oppositely disposed in a length direction, the inner diameter of the tube body gradually increasing from the first end to the second end, the first end being used to connect the capillary tube to reduce the noise of the refrigerant flowing from the capillary tube into the first muffler assembly; The second silencer assembly is used to be arranged between the second end and the evaporator tube to reduce the noise of the refrigerant flowing from the first silencer assembly to the evaporator tube.

2. The noise reduction assembly according to claim 1, characterized in that The angle between the inner side wall of the tube body and the central axis of the tube body is less than or equal to 6°.

3. The noise reduction assembly according to claim 1, wherein: The first muffler assembly further includes a first connecting tube, which is used to connect between the capillary tube and the first end. The first connecting tube, the tube body and the second muffler assembly are coaxially arranged.

4. The noise reduction assembly according to claim 3, characterized in that: The first connecting tube is cylindrical, and the inner diameter of the first connecting tube is equal to the inner diameter of the first end; or the first connecting tube is conical, the inner diameter of the first connecting tube gradually increases in the direction from the capillary to the tube body, and the inner diameter of one end of the first connecting tube close to the tube body is equal to the inner diameter of the first end.

5. The noise reduction assembly according to claim 3, characterized in that: The noise reduction component further includes a buffer layer, and the buffer layer covers the outer surface of the tube body; or Covering the outer surface of the tube body, and extending from the outer surface of the tube body to both sides to cover at least a portion of the first connecting pipe and at least a portion of the second muffler assembly; or Covering the outer surfaces of the tube body, the first connecting pipe and the second muffler assembly.

6. The noise reduction assembly according to any one of claims 1 to 5, characterized in that: The second silencer assembly includes a second connecting pipe, a cavity and a third connecting pipe which are connected in sequence, wherein one end of the second connecting pipe facing away from the cavity is connected to the second end, one end of the third connecting pipe facing away from the cavity is connected to the evaporation tube, and the second connecting pipe, the cavity and the third connecting pipe are coaxially arranged.

7. The noise reduction assembly according to claim 6, wherein: The inner diameters of the second connecting pipe and the third connecting pipe are equal, and the ratio of the flow area of ​​the cavity to the flow area of ​​the second connecting pipe is greater than or equal to 2.

8. The noise reduction assembly according to claim 6, wherein: The second muffler assembly includes a damping member, which is arranged in the cavity, between the second connecting pipe and the cavity, or between the cavity and the third connecting pipe.

9. A refrigeration system, characterized in that: The invention comprises a capillary tube, an evaporation tube and the noise reduction component according to any one of claims 1 to 8.

10. A refrigeration device, characterized in that: It comprises the noise reduction component according to any one of claims 1 to 8 or the refrigeration system according to claim 9.

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