Silencing structure, refrigeration assembly and refrigerator

Abstract

The utility model provides a noise reduction structure, a refrigeration assembly and a refrigerator, the noise reduction structure is applied to the refrigerator, the refrigerator comprises a capillary tube and an evaporation tube, the noise reduction structure comprises a noise reduction tube connected between the capillary tube and the evaporation tube, and an overflowing channel is formed in the noise reduction tube; and the noise reduction part is arranged in the overflowing channel, the noise reduction part has elasticity, and the noise reduction part is used for absorbing vibration generated by overflowing refrigerants through elastic deformation of the noise reduction part. According to the noise reduction structure, the noise reduction piece is arranged in the noise reduction pipe, and due to the fact that the noise reduction piece has elasticity, part of kinetic energy of the refrigerant can be converted into elastic potential energy of the noise reduction piece, and then vibration generated in the refrigerant flowing process is absorbed and attenuated.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and particularly relates to a noise reduction structure, a refrigeration component and a refrigerator. Background Technology

[0002] The capillary tube and evaporator tube in existing refrigerators have a large difference in diameter, resulting in a large pressure difference when the refrigerant flows from the capillary tube to the evaporator tube. This causes a loud jetting sound during the refrigerant flow, which increases the noise of the refrigerator during operation and affects the user experience. Utility Model Content

[0003] This application provides a noise reduction structure, a refrigeration component, and a refrigerator to solve the problem of loud noise generated when the refrigerant flows from the capillary tube to the evaporator tube in existing refrigerators.

[0004] This application provides a noise-reducing structure applied to a refrigerator, the refrigerator including a capillary tube and an evaporator tube, the noise-reducing structure including:

[0005] A silencer tube is connected between the capillary tube and the evaporator tube, and a flow channel is formed inside the silencer tube;

[0006] A silencing component is disposed within the flow channel. The silencing component is elastic and is used to absorb the vibration generated by the flowing refrigerant through its own elastic deformation.

[0007] Optionally, the silencing component includes a silencing ring, which is concentrically arranged with the silencing pipe, and an overflow hole is formed inside the silencing ring.

[0008] Optionally, the noise-absorbing rings include multiple rings, and the multiple noise-absorbing rings are spaced apart within the flow channel.

[0009] Optionally, the inner radial diameter of the plurality of flow holes gradually increases near the end of the evaporator tube.

[0010] Optionally, the noise reduction component is made of silicone.

[0011] Optionally, the capillary tube and the evaporator tube are respectively inserted into both ends of the flow channel;

[0012] The cross-sectional area of ​​the flow channel is the same as that of the evaporator tube, while the cross-sectional area of ​​the capillary tube is smaller than that of the flow channel.

[0013] This application embodiment also provides a refrigeration component applied to a refrigerator, the refrigeration component comprising:

[0014] Capillary;

[0015] Evaporator tube;

[0016] As described above, the noise-reducing structure is connected between the capillary tube and the evaporator tube.

[0017] Optionally, the end of the capillary near the silencer tube is made with a bevel.

[0018] Optionally, the angle between the inclined plane where the oblique cut is located and the axis of the capillary is 30°.

[0019] This application also provides a refrigerator, characterized in that it includes the refrigeration components as described above.

[0020] The silencing structure provided in this application embodiment includes a silencing component inside the silencing pipe. Because the silencing component is elastic, it can convert some of the refrigerant's kinetic energy into its elastic potential energy, thereby absorbing and attenuating vibrations generated during refrigerant flow. Secondly, the elastic silencing component also has damping characteristics, converting the refrigerant's vibrational energy into heat energy, thus reducing vibration transmission. Furthermore, the damping effect can effectively reduce the system's resonant frequency, reducing noise caused by resonance. Simultaneously, the elastic silencing component can act as a vibration isolation element, isolating the vibration source, i.e., the refrigerant, from other parts of the system, such as the silencing pipe, preventing vibration from being transmitted to other components through the silencing pipe, thereby reducing noise propagation. Moreover, pressure fluctuations during refrigerant flow are another important factor generating noise; the elastic silencing component can smooth pressure fluctuations and reduce pressure pulsations, thus reducing noise. Finally, the installation of the elastic silencing component can alter the refrigerant's flow characteristics, such as flow velocity and flow regime, thereby reducing the formation of turbulence and eddies in the refrigerant, further reducing noise. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0023] Figure 1 This is a schematic diagram of the connection of the noise reduction structure provided in an embodiment of this application.

[0024] Figure 2 for Figure 1 A sectional view.

[0025] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0026] Figure 4 for Figure 2 A magnified view of a section at point B in the middle.

[0027] Figure 5 This is a noise simulation diagram of the cooling component provided in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Silencer tube; 11. Flow channel; 2. Silencer ring; 21. Flow hole; 3. Capillary tube; 31. Angled cut; 4. Evaporator tube. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0035] The capillary tube of existing refrigerators typically has an inner diameter of 0.65mm, while the evaporator tube typically has an inner diameter of 2mm. Due to the significant difference in diameter between the capillary tube and the evaporator tube, there is a large pressure difference when the refrigerant flows from the capillary tube to the evaporator tube. This results in a loud jetting sound during the refrigerant flow, which increases the noise level during refrigerator operation and affects the user experience.

[0036] This application provides a noise reduction structure, a refrigeration component, and a refrigerator to solve the problem of loud noise when the refrigerant flows from the capillary tube to the evaporator tube in existing refrigerators. The following description is in conjunction with the accompanying drawings.

[0037] The noise-reducing structure provided in this application embodiment is applied to a refrigerator. The refrigerator includes a capillary tube 3 and an evaporator tube 4, and the noise-reducing structure includes a noise-reducing tube 1 and a noise-reducing component. Please refer to... Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the connection of the noise reduction structure provided in the embodiments of this application. Figure 2 for Figure 1 In the cross-sectional view, the silencer tube 1 is connected between the capillary tube 3 and the evaporator tube 4, and a flow channel 11 is formed inside the silencer tube 1; the silencer component is set inside the flow channel 11, and the silencer component is elastic, and the silencer component is used to absorb the vibration generated by the flowing refrigerant through its own elastic deformation.

[0038] The silencing structure provided in this embodiment includes a silencing component inside the silencing pipe 1. Because the silencing component is elastic, it can convert some of the kinetic energy of the refrigerant into elastic potential energy, thereby absorbing and attenuating the vibration generated during refrigerant flow. Secondly, the elastic silencing component also has damping characteristics, converting the vibration energy of the refrigerant into heat energy, thus reducing vibration transmission. Furthermore, the damping effect can effectively reduce the system's resonant frequency, reducing noise caused by resonance. Simultaneously, the elastic silencing component can act as a vibration isolation element, isolating the vibration source, i.e., the refrigerant, from other parts of the system, such as the silencing pipe 1, preventing vibration from being transmitted to other components through the silencing pipe 1, thereby reducing noise propagation. Moreover, pressure fluctuations during refrigerant flow are another important factor generating noise; the elastic silencing component can smooth pressure fluctuations and reduce pressure pulsations, thus reducing noise. Finally, the installation of the elastic silencing component can alter the refrigerant's flow characteristics, such as flow velocity and flow state, thereby reducing the formation of turbulence and eddies in the refrigerant, thus reducing noise.

[0039] Optionally, the silencing component includes a silencing ring 2, which is concentrically arranged with the silencing pipe 1, and a flow-through hole 21 is formed inside the silencing ring 2. Since the silencing ring 2 is located inside the flow-through channel 11 of the silencing pipe 1, the inner diameter of the flow-through hole 21 of the silencing pipe 1 is smaller than the inner diameter of the flow-through channel 11 of the silencing pipe 1. When the refrigerant flows through the flow-through hole 21 of the silencing ring 2 in the flow-through channel 11, the cross-sectional area of ​​the refrigerant flow path changes sequentially from decreasing to increasing. During this process, the refrigerant velocity first increases and then decreases. By increasing the refrigerant velocity, the impact force of the refrigerant on the silencing ring 2 is increased, causing the silencing ring 2 to undergo greater elastic deformation, thereby improving the absorption and attenuation capacity of the refrigerant vibration. After flowing through the silencing ring 2, the refrigerant velocity decreases, reducing turbulence and eddies, and further improving the noise reduction effect. Meanwhile, the silencer ring 2 and the silencer pipe 1 are concentrically set, which reduces the pressure difference on both sides of the flow hole 21, making the pressure fluctuation of the refrigerant more stable when it flows through both sides of the flow hole 21.

[0040] Optionally, the muffler ring 2 can be interference-fitted into the muffler tube 1.

[0041] Optionally, the silencer rings 2 include multiple rings, which are spaced apart within the flow channel 11. By arranging multiple silencer rings 2 at intervals along the axial direction of the silencer pipe 1, the silencing effect on the refrigerant is further improved.

[0042] Optionally, the inner diameter of the multiple flow holes 21 gradually increases towards the end near the evaporator tube 4. By setting the inner diameter of the multiple flow holes 21 to gradually increase towards the end near the evaporator tube 4, the flow cross section of the silencing ring 2 gradually increases from the capillary tube 3 to the evaporator tube 4, achieving a step-by-step transition in the change of inner diameter between the capillary tube 3 and the evaporator tube 4. This makes the transition between adjacent silencing rings 2 smoother, reduces pressure fluctuations between adjacent silencing rings 2, and thus reduces noise.

[0043] In one specific implementation, the silencing rings 2 may include six, and the diameters of the flow holes 21 of the six silencing rings 2 may be 0.75mm, 0.95mm, 1.15mm, 1.35mm, 1.55mm, and 1.75mm respectively. The intervals between two adjacent silencing rings 2 may be 5mm, 8mm, 13mm, 21mm, and 34mm respectively. The length of the silencing tube 1 may be 100mm, and the thickness of each silencing ring 2 may be 1mm.

[0044] Optionally, the sound-absorbing components are made of silicone.

[0045] As an alternative implementation, the sound-absorbing component can also be made of other elastic materials that are resistant to high temperatures and refrigerant corrosion, such as rubber.

[0046] Optionally, the silencing component may also include a silencing block attached to the flow channel 11, wherein the maximum outer diameter of the silencing block is smaller than the inner diameter of the flow channel 11, to prevent the silencing block from blocking the flow channel 11 and to ensure the flow of refrigerant. The shape of the silencing block is not further limited here; in some examples, it may be rectangular, irregular, or spherical.

[0047] Optionally, the capillary tube 3 and the evaporator tube 4 are respectively inserted into the two ends of the flow channel 11; the flow cross section of the flow channel 11 is the same as that of the evaporator tube 4, and the flow cross section of the capillary tube 3 is smaller than that of the flow cross section of the flow channel 11.

[0048] For further details, please refer to Figure 4 , Figure 4 for Figure 2 The enlarged view at point B shows that the body of the silencer tube 1 near the evaporator tube 4 is thickened to accommodate the evaporator tube 4, while ensuring the connection strength between the silencer tube 1 and the evaporator tube 4 to prevent the silencer tube 1 from breaking or being damaged.

[0049] This application also provides a refrigeration assembly for use in a refrigerator. The refrigeration assembly includes a capillary tube 3, an evaporator tube 4, and a noise-reducing structure as described above. The noise-reducing structure is connected between the capillary tube 3 and the evaporator tube 4. The noise-reducing structure includes a noise-reducing pipe 1 and a noise-reducing component. The noise-reducing pipe 1 is connected between the capillary tube 3 and the evaporator tube 4, and a flow channel 11 is formed inside the noise-reducing pipe 1. The noise-reducing component is disposed inside the flow channel 11 and is elastic. The noise-reducing component is used to absorb the vibration generated by the flowing refrigerant through its own elastic deformation.

[0050] Optionally, please refer to Figure 3 , Figure 3 for Figure 2The enlarged view at point A shows that the end of the capillary tube 3 near the muffler tube 1 has a beveled end 31. By making the beveled end 31 of the capillary tube 3 near the muffler tube 1, the flow direction of the refrigerant is changed, so that the refrigerant does not directly and vertically impact the end of the muffler tube 1, but flows in at a certain angle, which alleviates the pressure fluctuation of the refrigerant. This reduces the impact force of the refrigerant on the end of the muffler tube 1, thus reducing the vibration and noise caused by the impact.

[0051] Optionally, the angle between the inclined plane where the oblique cut 31 is located and the axis of the capillary 3 is 30°.

[0052] As an alternative implementation, the angle between the inclined plane where the oblique cut 31 is located and the axis of the capillary 3 can also be 45°, 35° or 40°, etc.

[0053] refer to Figure 5 Figure 1 shows the finite element simulation results of the ejection noise of the refrigeration component when the angle between the oblique cut 31 and the axis of the capillary tube 3 is 30°. Figure 2 shows the finite element simulation results of the ejection noise when the capillary tube 3 is directly connected to the evaporator tube 4. As can be seen from the figures, by using the refrigeration component provided in this application, the noise value in almost the entire frequency band from 10Hz to 2000Hz is reduced by 4dB.

[0054] This application also provides a refrigerator, characterized in that it includes the refrigeration assembly as described above. The refrigeration assembly includes a capillary tube 3, an evaporator tube 4, and a noise-reducing structure as described above. The noise-reducing structure is connected between the capillary tube 3 and the evaporator tube 4. The noise-reducing structure includes a noise-reducing pipe 1 and a noise-reducing component. The noise-reducing pipe 1 is connected between the capillary tube 3 and the evaporator tube 4, and a flow channel 11 is formed inside the noise-reducing pipe 1; the noise-reducing component is disposed inside the flow channel 11, and the noise-reducing component is elastic, used to absorb the vibration generated by the flowing refrigerant through its own elastic deformation.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] The above provides a detailed description of the noise reduction structure, refrigeration components, and refrigerator provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A sound damping structure applied to a refrigerator, the refrigerator including a capillary tube and an evaporation tube, characterized in that, The sound-damping structure comprises: a sound-damping pipe connected between the capillary pipe and the evaporating pipe, and a flow passage being formed in the sound-damping pipe; a sound-damping member arranged in the flow passage, the sound-damping member being elastic and used for absorbing vibration generated by the flow-through refrigerant through elastic deformation of the sound-damping member.

2. The sound attenuating structure of claim 1, wherein, The sound-damping member comprises a sound-damping ring, the sound-damping ring is concentrically arranged with the sound-damping pipe, and a flow hole is formed in the sound-damping ring.

3. The sound attenuating structure of claim 2, wherein, The sound-damping ring comprises a plurality of sound-damping rings, and the plurality of sound-damping rings are arranged in the flow passage at intervals.

4. The sound attenuating structure of claim 3, wherein, The inner diameter of the plurality of flow holes gradually increases from one end close to the evaporating pipe.

5. The sound attenuating structure of claim 1, wherein, The sound-damping member is made of silica gel.

6. The sound attenuating structure of claim 1, wherein, The capillary pipe and the evaporating pipe are respectively inserted into two ends of the flow passage. The flow cross section of the flow passage is the same as the flow cross section of the evaporating pipe, and the flow cross section of the capillary pipe is smaller than the flow cross section of the flow passage.

7. A refrigeration assembly for use in a refrigerator, characterized by The refrigeration assembly comprises: a capillary pipe; an evaporating pipe; the sound-damping structure according to any one of claims 1-6, the sound-damping structure being connected between the capillary pipe and the evaporating pipe.

8. The refrigeration assembly of claim 7, wherein, An inclined cut is made at one end of the capillary pipe close to the sound-damping pipe.

9. The refrigeration assembly of claim 8, wherein, The included angle between the inclined surface where the inclined cut is located and the axis of the capillary pipe is 30°.

10. A refrigerator characterized by comprising: The refrigeration assembly according to any one of claims 7-9 is provided.

Images