Refrigerator capillary noise reduction structure, refrigerator refrigeration system and refrigerator

Abstract

This utility model discloses a capillary tube noise reduction structure, a refrigerator refrigeration system, and a refrigerator, relating to the field of household appliance technology, and is used to solve the problem of noise generated at the connection between the capillary tube and the evaporator tube in related technologies. The noise reduction mechanism includes an evaporator tube, a capillary tube, and a noise reduction mechanism. The capillary tube is connected to the evaporator tube and is interconnected with it. The noise reduction mechanism includes a noise reduction cylinder with a noise reduction cavity. The connection between the capillary tube and the evaporator tube is located within the noise reduction cavity. Both ends of the noise reduction cylinder are connected to the capillary tube and the evaporator tube, respectively. Multiple sound-insulating plates are arranged sequentially along the extension direction of the capillary tube on the inner wall of the noise reduction cylinder, and each sound-insulating plate also has a noise reduction unit. By setting the connection between the capillary tube and the evaporator tube to be located within the noise reduction cavity of the noise reduction cylinder, this utility model can effectively reduce the noise generated at the connection between the capillary tube and the evaporator tube, thereby improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a refrigerator capillary noise reduction structure, a refrigerator refrigeration system, and a refrigerator. Background Technology

[0002] With economic development, refrigerators have entered thousands of households, making a significant contribution to ensuring the freshness and safety of household food. Among them, the refrigeration system is an important system of the refrigerator.

[0003] A refrigerator's refrigeration system consists of components such as a compressor, evaporator, condenser, and capillary tube. These components need to be connected, including the capillary tube and the evaporator tube. However, in some technologies, the capillary tube and the evaporator tube are welded together. The refrigerant exiting the capillary tube is compressed by the refrigeration system, resulting in a high pressure. This leads to a significant pressure drop as the refrigerant enters the evaporator tube, causing noise during refrigerant flow in this section of the pipe, thus affecting the user's refrigerator experience. Utility Model Content

[0004] The main purpose of this utility model is to provide a refrigerator capillary tube noise reduction structure, a refrigerator refrigeration system and a refrigerator, in order to solve the problem in related technologies that noise is generated at the connection between the capillary tube and the evaporator tube, thereby affecting the user's refrigerator experience.

[0005] To solve the above-mentioned technical problems, this utility model provides a refrigerator capillary noise reduction structure, the noise reduction structure comprising: Evaporator tubes; A capillary tube is connected to the evaporator tube, and the capillary tube and the evaporator tube are in communication with each other; A noise reduction mechanism includes a noise reduction cylinder with a noise reduction cavity. The connection between the capillary tube and the evaporator tube is located inside the noise reduction cavity. Both ends of the noise reduction cylinder are connected to the capillary tube and the evaporator tube, respectively. The inner wall of the noise reduction cylinder has multiple sound insulation plates, which are arranged sequentially along the extension direction of the capillary tube. Each sound insulation plate also has a noise reduction unit. In one possible implementation, the noise reduction cylinder includes a first noise reduction sub-cylinder and a second noise reduction sub-cylinder connected to each other, the evaporator tube passing through at least a portion of the first noise reduction sub-cylinder, and the capillary tube passing through at least a portion of the second noise reduction sub-cylinder.

[0006] In one possible implementation, the first noise-reducing sub-tube and the second noise-reducing sub-tube are connected by a hinge.

[0007] In one possible implementation, the first noise-reducing sub-tube includes a first sub-segment and a second sub-segment connected to each other, the second sub-segment being connected to the second noise-reducing sub-tube, the inner wall of the first sub-segment being connected to the outer wall of the evaporator tube, and the inner diameter of the first sub-segment gradually decreasing from one end of the first sub-segment close to the second noise-reducing sub-tube towards the other end of the first sub-segment away from the second noise-reducing sub-tube.

[0008] In one possible implementation, the second noise-reducing sub-tube includes a third sub-segment and a fourth sub-segment connected to each other, the fourth sub-segment being connected to the first noise-reducing sub-tube, the inner wall of the third sub-segment being connected to the outer wall of the capillary, and the inner diameter of the third sub-segment gradually decreasing from one end of the third sub-segment closer to the first noise-reducing sub-tube toward the other end of the third sub-segment farther from the first noise-reducing sub-tube.

[0009] In one possible implementation, the sound insulation plate has a predetermined distance between the side of the sound insulation plate closest to the capillary tube and the evaporator tube and the outer wall of the capillary tube and the evaporator tube.

[0010] In one possible implementation, the noise reduction unit includes a sound-guiding groove formed on the surface of the sound insulation panel, the sound-guiding groove extending radially along the sound insulation panel.

[0011] In one possible implementation, the noise reduction unit further includes a sound-absorbing cavity formed in the sound insulation panel, the sound-absorbing cavity being in communication with the sound guide groove.

[0012] In one possible implementation, the present invention also provides a refrigerator refrigeration system, which includes the refrigerator capillary noise reduction structure described in this application.

[0013] In one possible implementation, the present invention also provides a refrigerator, which includes the refrigerator refrigeration system described in this application.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model proposes a refrigerator capillary tube noise reduction structure, a refrigerator refrigeration system, and a refrigerator. By setting the connection position of the capillary tube and the evaporator tube to be located inside the noise reduction cavity of the noise reduction cylinder, the noise generated at the connection point of the capillary tube and the evaporator tube can be effectively reduced, thereby improving the user experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional schematic diagram of the noise reduction structure provided in this embodiment of the utility model; Figure 2 A cross-sectional schematic diagram of the first and second noise reduction sub-tubes of the noise reduction structure provided in this embodiment of the utility model connected by a hinge; Figure 3 A schematic cross-sectional view of the first and second noise reduction sub-tubes of the noise reduction structure provided in this embodiment of the utility model, connected by a thread; Figure 4 A cross-sectional schematic diagram showing the rubber gasket placed between the noise reduction cylinder, capillary tube, and evaporator tube in an embodiment of this utility model; Figure 5 Provided for the embodiments of this utility model Figure 1 Schematic diagram of the cross section at point AA; Figure 6 This is a cross-sectional schematic diagram of the sound insulation panel provided in an embodiment of the present invention.

[0017] Reference numerals in the attached drawings: 1. Evaporator tube; 2. Capillary tube; 3. Noise reduction cylinder; 31. First noise reduction sub-cylinder; 311. First sub-segment; 312. Second sub-segment; 32. Second noise reduction sub-cylinder; 321. Third sub-segment; 322. Fourth sub-segment; 4. Sound insulation board; 5. Noise reduction cavity; 6. Noise reduction unit; 61. Sound guide groove; 62. Silencing cavity; 7. Hinge; 8. Rubber gasket. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that the terms "vertical", "horizontal", "above", "below", "upper side", "top surface" and "bottom surface" are all based on the corresponding view or the orientation in which the refrigerator is placed when it is in normal use.

[0023] Please see Figure 1 This utility model provides a refrigerator capillary noise reduction structure, which includes an evaporator tube 1, a capillary tube 2, and a noise reduction mechanism.

[0024] The capillary tube 2 is connected to the evaporator tube 1, and the capillary tube 2 and the evaporator tube 1 are interconnected.

[0025] The noise reduction mechanism includes a noise reduction cylinder 3, which has a noise reduction cavity 5. The connection between the capillary tube 2 and the evaporator tube 1 is located inside the noise reduction cavity 5. Both ends of the noise reduction cylinder 3 are connected to the capillary tube 2 and the evaporator tube 1, respectively. The inner wall of the noise reduction cylinder 3 has multiple sound insulation plates 4, which are arranged sequentially along the extension direction of the capillary tube 2. The sound insulation plates 4 also have noise reduction units 6. The capillary tube 2 is interconnected with the evaporator tube 1, allowing refrigerant to flow from the capillary tube 2 into the evaporator, completing the refrigeration cycle. The evaporator tube 1 may include an interconnected reducing pipe and an evaporator tube body. The evaporator tube body is connected to the evaporator, and the reducing pipe is connected to the capillary tube. The capillary tube 2 is typically made of copper, while the evaporator tube 1 is typically made of aluminum. The evaporator tube 1 is connected to the refrigerator's evaporator. The evaporator tube 1 and the capillary tube 2 can be connected by welding; however, the weld joints between the evaporator tube 1 and the capillary tube 2 are relatively fragile. Therefore, butyl rubber can be added to the weld joints of the evaporator tube 1 and the capillary tube 2 for protection, which also reduces noise generated by vibration at the weld joints.

[0026] In this embodiment, a noise reduction cylinder 3 is provided at the connection between the capillary tube 2 and the evaporator tube 1. The noise reduction cylinder 3 has a noise reduction cavity 5, that is, the noise reduction cylinder 3 can wrap the connection between the capillary tube 2 and the evaporator tube 1 to form a relatively independent space. The noise generated at the connection between the capillary tube 2 and the evaporator tube 1 can be isolated by the noise reduction cavity 5 of the noise reduction cylinder 3, which can reduce the outward propagation of noise, thereby reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0027] The sound insulation plate 4 and the inner wall of the noise reduction cylinder 3 can be detachably connected or integrally formed. When noise propagates in the noise reduction cavity 5, it can be blocked and absorbed by the sound insulation plate 4, resulting in noise loss and reducing the propagation efficiency of noise. This can further reduce the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0028] When the noise generated at the connection between the capillary tube 2 and the evaporator tube 1 is transmitted to the sound insulation plate 4, in addition to the sound insulation plate 4 absorbing some of the noise, the noise reduction unit 6 located on the sound insulation plate 4 can further absorb the noise, enhance the noise reduction effect of the sound insulation plate 4, and improve the overall performance of the noise reduction mechanism, thereby further reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0029] In addition, the noise reduction cylinder 3 can also protect the connection between the capillary tube 2 and the evaporator tube 1, making the connection between the capillary tube 2 and the evaporator tube 1 more reliable.

[0030] Based on the above design, in this embodiment, the connection position between the capillary tube 2 and the evaporator tube 1 is set inside the noise reduction cavity 5 of the noise reduction cylinder 3. When the refrigerant flows in the capillary tube 2 and the evaporator tube 1, a certain amount of noise will be generated. This noise will first propagate into the noise reduction cavity 5 and be absorbed and processed by the sound insulation plate 4 and the noise reduction unit 6. Since the sound insulation plate 4 is arranged sequentially along the extension direction of the capillary tube 2, it can intercept and absorb noise at multiple locations, thereby effectively reducing the intensity of the noise. At the same time, the noise reduction cylinder 3 wraps around the connection part of the capillary tube 2 and the evaporator tube 1, preventing the noise from propagating directly outward, thereby effectively reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1, and thus improving the user experience.

[0031] In one possible implementation, please refer to Figure 2 The noise reduction cylinder 3 includes a first noise reduction sub-cylinder 31 and a second noise reduction sub-cylinder 32 connected to each other. The evaporator tube 1 passes through at least a portion of the first noise reduction sub-cylinder 31, and the capillary tube 2 passes through at least a portion of the second noise reduction sub-cylinder 32.

[0032] The first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 are interconnected to form a complete noise-reducing tube 3. The evaporator tube 1 passes through the first noise-reducing sub-tube 31, so that a portion of the evaporator tube 1 is located within the noise-reducing cavity 5. The capillary tube 2 passes through the second noise-reducing sub-tube 32, so that a portion of the capillary tube 2 is also located within the noise-reducing cavity 5. In this way, the noise-reducing tube 3 can completely enclose the connection between the capillary tube 2 and the evaporator tube 1, ensuring that noise does not leak out from the connection. Moreover, dividing the noise-reducing tube 3 into the interconnected first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 makes it easier to place the noise-reducing tube 3 on the capillary tube 2 and the evaporator tube 1 during installation, thereby reducing the installation difficulty.

[0033] Specifically, the installer can first put the first noise reduction sub-tube 31 onto the evaporator tube 1, then put the second noise reduction sub-tube 32 onto the capillary tube 2, and then connect the first noise reduction sub-tube 31 and the second noise reduction sub-tube 32 to form a complete noise reduction tube 3. In this way, the noise reduction tube 3 can be installed more conveniently and quickly.

[0034] Furthermore, the first noise-reducing sub-tube 31 can be fixedly connected to the evaporator tube 1, for example, by welding the first noise-reducing sub-tube 31 to the evaporator tube 1. Similarly, the second noise-reducing sub-tube 32 can be fixedly connected to the capillary tube 2, for example, by welding the second noise-reducing sub-tube 32 to the capillary tube 2. Alternatively, the first noise-reducing sub-tube 31 and the evaporator tube 1 can be left unwelded, and an interference fit can be made between them; the second noise-reducing sub-tube 32 and the capillary tube 2 can also be left unwelded, and an interference fit can be made between them.

[0035] Optionally, the distance between two adjacent sound insulation panels 4 is greater than or equal to 3mm and less than or equal to 10mm. For example, the distance can be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm, etc. Setting the distance reasonably can improve the sound insulation effect of the sound insulation panel 4.

[0036] Optionally, the capillary tube 2 and the evaporator tube 1 can be fixedly connected by welding, which can make the connection between the capillary tube 2 and the evaporator tube 1 more secure. In addition, the sound insulation plate 4 can also protect the weld points between the capillary tube 2 and the evaporator tube 1, making the connection between the capillary tube 2 and the evaporator tube 1 more reliable.

[0037] In some embodiments, please refer again Figure 2 The first noise reduction sub-tube 31 and the second noise reduction sub-tube 32 are connected by a hinge 7.

[0038] The hinge 7 is a conventional hinge 7, which is an existing component. The installer can first put the first noise-reducing sub-tube 31 on the evaporator tube 1, then put the second noise-reducing sub-tube 32 on the capillary tube 2, and then connect the first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 through the hinge 7 to form a complete noise-reducing tube 3. In this way, the noise-reducing tube 3 can be installed more conveniently and quickly.

[0039] When maintenance or repair is required, the noise reduction cylinder 3 can be opened through the hinge 7, which makes it easier to inspect and repair the inside of the noise reduction cylinder 3.

[0040] In this embodiment, the first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 are connected by the hinge 7, which makes the connection between the first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 more flexible and easier to install and maintain. At the same time, the hinge 7 can ensure that the first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 are tightly connected when closed to prevent noise leakage. Therefore, connecting the first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 by the hinge 7 does not affect the noise reduction effect of the noise-reducing tube 3.

[0041] In other embodiments, please refer to Figure 3 The first noise-reducing sub-tube 31 and the second noise-reducing sub-tube 32 are connected by threads. For example, the inner diameter of the first noise-reducing sub-tube 31 at the connection point with the second noise-reducing sub-tube 32 is equal to the outer diameter of the second noise-reducing sub-tube 32, and the internal thread of the first noise-reducing sub-tube 31 is connected to the external thread of the second noise-reducing sub-tube 32. In this way, the noise-reducing tube 3 can be installed more conveniently and quickly.

[0042] In one possible implementation, please refer again. Figure 3 The first noise reduction sub-tube 31 includes a first sub-segment 311 and a second sub-segment 312 connected to each other. The second sub-segment 312 is connected to the second noise reduction sub-tube 32. The inner wall of the first sub-segment 311 is connected to the outer wall of the evaporator tube 1. The inner diameter of the first sub-segment 311 gradually decreases from one end of the first sub-segment 311 close to the second noise reduction sub-tube 32 to the other end of the first sub-segment 311 away from the second noise reduction sub-tube 32.

[0043] The gradually decreasing inner diameter of the first segment 311 allows it to better fit with the evaporator tube 1, ensuring a tight fit between the inner wall of the first segment 311 and the outer wall of the evaporator tube 1. This enhances the sealing of the connection between the first segment 311 and the evaporator tube 1, preventing noise leakage from the connection between the first segment 311 and the evaporator tube 1, thereby improving the noise reduction effect of the noise reduction cylinder 3.

[0044] In addition, the gradually decreasing inner diameter of the first segment 311 can guide the flow of refrigerant, making the refrigerant flow more smoothly into the noise reduction cavity 5 and reducing the noise caused by unstable refrigerant flow.

[0045] Specifically, when the refrigerant flows from the evaporator tube 1 into the noise reduction cavity 5, the gradually decreasing inner diameter of the first sub-segment 311 will gradually reduce the flow rate of the refrigerant and gradually stabilize the pressure. This can prevent the refrigerant from generating violent impacts and fluctuations when entering the noise reduction cavity 5, thereby reducing the generation of noise and enabling the refrigerator to operate quietly and stably.

[0046] In one possible implementation, the second noise-reducing sub-tube 32 includes a third sub-segment 321 and a fourth sub-segment 322 connected to each other. The fourth sub-segment 322 is connected to the first noise-reducing sub-tube 31. The inner wall of the third sub-segment 321 is connected to the outer wall of the capillary 2. The inner diameter of the third sub-segment 321 gradually decreases from one end of the third sub-segment 321 close to the first noise-reducing sub-tube 31 to the other end of the third sub-segment 321 away from the first noise-reducing sub-tube 31.

[0047] The gradually decreasing inner diameter of the third segment 321 allows for better cooperation with the capillary tube 2, ensuring a tight fit between the inner wall of the third segment 321 and the outer wall of the capillary tube 2. This enhances the sealing of the connection between the third segment 321 and the capillary tube 2, preventing noise leakage from the connection and thus improving the noise reduction effect of the noise reduction cylinder 3.

[0048] In addition, the gradually decreasing inner diameter of the third segment 321 can guide the flow of refrigerant, making the refrigerant flow more smoothly into the noise reduction cavity 5 and reducing the noise caused by unstable refrigerant flow.

[0049] Specifically, when the refrigerant flows from the evaporator tube 1 into the noise reduction cavity 5, the gradually decreasing inner diameter of the third segment 321 will gradually reduce the flow rate of the refrigerant and stabilize the pressure. This can prevent the refrigerant from generating violent impacts and fluctuations when entering the noise reduction cavity 5, thereby reducing the generation of noise and enabling the refrigerator to operate quietly and stably.

[0050] In one possible implementation, please refer again. Figure 1 The sound insulation plate 4 has a predetermined distance between the side of the sound insulation plate 4 and the outer wall of the capillary tube 2 and the evaporator tube 1.

[0051] This preset distance allows a buffer space to be formed between the capillary tube 2 and the evaporator tube 1 and the sound insulation plate 4. When noise propagates from the capillary tube 2 and the evaporator tube 1 to the sound insulation plate 4, the buffer space can attenuate the propagation speed and intensity of the noise to a certain extent.

[0052] In addition, the preset distance can also prevent the sound insulation plate 4 from directly contacting the capillary tube 2 and the evaporator tube 1, preventing the transmission of vibration caused by contact and further reducing the spread of noise.

[0053] Specifically, when refrigerant flows through the capillary tube 2 and the evaporator tube 1, generating noise, the noise first propagates into the buffer space. Within the buffer space, the noise is continuously reflected and scattered, gradually consuming energy. The attenuated noise then propagates to the sound insulation plate 4, where it is further absorbed and processed. Simultaneously, since the sound insulation plate 4 is not in direct contact with the capillary tube 2 and the evaporator tube 1, the vibrations of the capillary tube 2 and the evaporator tube 1 are not easily transmitted to the sound insulation plate 4, thus preventing the noise reduction mechanism from generating additional noise.

[0054] Optionally, in some embodiments, a rubber gasket 8 is provided between the noise reduction cylinder 3 and the evaporator tube 1 and the capillary tube 2. The rubber gasket 8 can reduce the vibration between the evaporator tube 1 and the capillary tube 2 and the noise reduction cylinder 3, thereby further reducing the noise of the structure.

[0055] In one possible implementation, please refer to Figure 1 , Figure 5 and Figure 6 The noise reduction unit 6 includes a sound guide groove 61 formed on the surface of the sound insulation plate 4, and the sound guide groove 61 extends radially along the sound insulation plate 4.

[0056] The sound guide groove 61 can guide the direction of noise propagation, so that the noise can enter the interior of the sound insulation board 4 more concentratedly for treatment. When the noise propagates to the surface of the sound insulation board 4, the sound guide groove 61 will introduce the noise into its interior, preventing the noise from being scattered randomly on the surface of the sound insulation board 4, thus improving the efficiency of noise treatment.

[0057] In addition, the sound guide groove 61 extends radially along the sound insulation plate 4, which can increase the propagation path of noise inside the sound insulation plate 4, so that the noise will continuously collide and reflect with the inner wall of the sound insulation plate 4 during propagation, consuming more energy, thereby improving the noise reduction effect of the noise reduction structure.

[0058] Specifically, when noise propagates to the surface of the sound insulation panel 4, the sound guide groove 61 guides the noise into its interior. As the noise propagates within the sound guide groove 61, it continuously propagates and reflects against the inner wall of the sound guide groove 61. Each collision and reflection consumes a portion of energy, causing the noise intensity to gradually decrease, thereby improving the noise reduction effect of the noise reduction structure.

[0059] In one possible implementation, please refer again. Figure 1 , Figure 5 and Figure 6 The noise reduction unit 6 further includes a sound-absorbing cavity 62 formed on the sound insulation plate 4, and the sound-absorbing cavity 62 is connected to the sound guide groove 61.

[0060] When noise enters the sound insulation plate 4 through the sound guide groove 61, it is further guided by the sound guide groove 61 into the silencing cavity 62. The noise can undergo multiple reflections and interferences within the silencing cavity 62, thereby consuming more of its energy. Specifically, when noise is reflected within the silencing cavity 62, reflected waves from different directions interfere with each other, and some noise waves cancel each other out, further reducing the noise intensity.

[0061] In addition, the connection between the silencing cavity 62 and the sound guide groove 61 allows noise to smoothly enter the silencing cavity 62 from the sound guide groove 61 for processing. This connection method ensures the continuity and efficiency of noise processing. When noise propagates in the sound guide groove 61, it will naturally flow into the silencing cavity 62, where a further noise reduction process will be completed.

[0062] Thus, the design of the silencing cavity 62 can significantly improve the performance of the noise reduction unit 6. Through the cooperation of the silencing cavity 62 and the sound guide groove 61, noise can be treated more effectively, further reducing the propagation and intensity of noise, thereby further improving the performance of the refrigerator and the user experience.

[0063] In one possible implementation, the present invention also provides a refrigerator refrigeration system, which includes the refrigerator capillary noise reduction structure described in this application.

[0064] During the circulation process of the refrigerant in the refrigerator's refrigeration system, it needs to be throttled and depressurized through the capillary tube 2, which generates some noise.

[0065] When the refrigerator capillary noise reduction structure of this application is applied to the refrigerator refrigeration system, the noise reduction structure can wrap the connection between the capillary tube 2 and the evaporator tube 1, and use the sound insulation plate 4 and the noise reduction unit 6 to absorb and block noise, thereby reducing the propagation and intensity of noise.

[0066] Specifically, since the refrigerator refrigeration system includes the refrigerator capillary tube noise reduction structure described in this application, a noise reduction cylinder 3 is provided at the connection between the capillary tube 2 and the evaporator tube 1 in the refrigerator refrigeration system. The noise reduction cylinder 3 has a noise reduction cavity 5, that is, the noise reduction cylinder 3 can wrap the connection between the capillary tube 2 and the evaporator tube 1 to form a relatively independent space. The noise generated at the connection between the capillary tube 2 and the evaporator tube 1 can be isolated by the noise reduction cavity 5 of the noise reduction cylinder 3, which can reduce the outward propagation of noise, thereby reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0067] The sound insulation plate 4 and the inner wall of the noise reduction cylinder 3 can be detachably connected or integrally formed. When noise propagates in the noise reduction cavity 5, it can be blocked and absorbed by the sound insulation plate 4, resulting in noise loss and reducing the propagation efficiency of noise. This can further reduce the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0068] When the noise generated at the connection between the capillary tube 2 and the evaporator tube 1 is transmitted to the sound insulation plate 4, in addition to the sound insulation plate 4 absorbing some of the noise, the noise reduction unit 6 located on the sound insulation plate 4 can further absorb the noise, enhance the noise reduction effect of the sound insulation plate 4, and improve the overall performance of the noise reduction mechanism, thereby further reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0069] In one possible implementation, the present invention also provides a refrigerator, which includes the refrigerator refrigeration system described in this application.

[0070] Since the refrigerator includes the refrigerator refrigeration system described in this application, a noise reduction cylinder 3 is provided at the connection between the capillary tube 2 and the evaporator tube 1 of the refrigerator. The noise reduction cylinder 3 has a noise reduction cavity 5, that is, the noise reduction cylinder 3 can wrap the connection between the capillary tube 2 and the evaporator tube 1 to form a relatively independent space. The noise generated at the connection between the capillary tube 2 and the evaporator tube 1 can be isolated by the noise reduction cavity 5 of the noise reduction cylinder 3, which can reduce the outward propagation of noise, thereby reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0071] The sound insulation plate 4 and the inner wall of the noise reduction cylinder 3 can be detachably connected or integrally formed. When noise propagates in the noise reduction cavity 5, it can be blocked and absorbed by the sound insulation plate 4, resulting in noise loss and reducing the propagation efficiency of noise. This can further reduce the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0072] When the noise generated at the connection between the capillary tube 2 and the evaporator tube 1 is transmitted to the sound insulation plate 4, in addition to the sound insulation plate 4 absorbing some of the noise, the noise reduction unit 6 located on the sound insulation plate 4 can further absorb the noise, enhance the noise reduction effect of the sound insulation plate 4, and improve the overall performance of the noise reduction mechanism, thereby further reducing the noise generated at the connection between the capillary tube 2 and the evaporator tube 1.

[0073] The above are merely various embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A capillary noise reduction structure for a refrigerator, characterized in that, The noise reduction structure includes: Evaporator tube (1); Capillary tube (2), the capillary tube (2) is connected to the evaporator tube (1), and the capillary tube (2) and the evaporator tube (1) are interconnected; The noise reduction mechanism includes a noise reduction cylinder (3), which has a noise reduction cavity (5). The connection between the capillary tube (2) and the evaporator tube (1) is located inside the noise reduction cavity (5). The two ends of the noise reduction cylinder (3) are respectively connected to the capillary tube (2) and the evaporator tube (1). The inner wall of the noise reduction cylinder (3) has multiple sound insulation plates (4). The multiple sound insulation plates (4) are arranged sequentially along the extension direction of the capillary tube (2). The sound insulation plates (4) also have noise reduction units (6).

2. The refrigerator capillary noise reduction structure according to claim 1, characterized in that, The noise reduction tube (3) includes a first noise reduction sub-tube (31) and a second noise reduction sub-tube (32) connected to each other. The evaporator tube (1) passes through at least a portion of the first noise reduction sub-tube (31), and the capillary tube (2) passes through at least a portion of the second noise reduction sub-tube (32).

3. The refrigerator capillary noise reduction structure according to claim 2, characterized in that, The first noise reduction sub-tube (31) and the second noise reduction sub-tube (32) are connected by a hinge (7).

4. The refrigerator capillary noise reduction structure according to claim 2, characterized in that, The first noise reduction sub-tube (31) includes a first sub-segment (311) and a second sub-segment (312) connected to each other. The second sub-segment (312) is connected to the second noise reduction sub-tube (32). The inner wall of the first sub-segment (311) is connected to the outer wall of the evaporator tube (1). The inner diameter of the first sub-segment (311) gradually decreases from one end of the first sub-segment (311) close to the second noise reduction sub-tube (32) to the other end of the first sub-segment (311) away from the second noise reduction sub-tube (32).

5. The refrigerator capillary noise reduction structure according to claim 2, characterized in that, The second noise reduction sub-tube (32) includes a third sub-section (321) and a fourth sub-section (322) connected to each other. The fourth sub-section (322) is connected to the first noise reduction sub-tube (31). The inner wall of the third sub-section (321) is connected to the outer wall of the capillary (2). The inner diameter of the third sub-section (321) gradually decreases from one end of the third sub-section (321) close to the first noise reduction sub-tube (31) to the other end of the third sub-section (321) away from the first noise reduction sub-tube (31).

6. The refrigerator capillary noise reduction structure according to claim 1, characterized in that, The sound insulation plate (4) has a predetermined distance between the side of the sound insulation plate (4) and the outer wall of the capillary tube (2) and the evaporator tube (1) and the outer wall of the capillary tube (2) and the evaporator tube (1).

7. The refrigerator capillary noise reduction structure according to any one of claims 1-6, characterized in that, The noise reduction unit (6) includes a sound guide groove (61) formed on the surface of the sound insulation plate (4), the sound guide groove (61) extending radially along the sound insulation plate (4).

8. The refrigerator capillary noise reduction structure according to claim 7, characterized in that, The noise reduction unit (6) also includes a sound-absorbing cavity (62) opened on the sound insulation plate (4), and the sound-absorbing cavity (62) is connected to the sound guide groove (61).

9. A refrigerator refrigeration system, characterized in that, The refrigerator refrigeration system includes the refrigerator capillary noise reduction structure as described in any one of claims 1-8.

10. A refrigerator, characterized in that, The refrigerator includes the refrigerator refrigeration system as described in claim 9.

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