Refrigeration equipment

Abstract

The invention relates to refrigeration equipment which comprises a refrigeration system, the refrigeration system is provided with a liquid storage device, and the liquid storage device comprises a shell internally provided with a liquid storage cavity; the inner end of the liquid inlet pipe extends into the liquid storage cavity; the outer end is exposed out of the shell; the inner end of the liquid outlet pipe communicates with the other end of the liquid storage cavity, and the outer end of the liquid outlet pipe is used for allowing refrigerants to flow out; a gradual change part is convexly arranged on the peripheral wall, positioned in the liquid storage cavity, of the liquid inlet pipe; the outer diameter of the gradual change part is gradually increased in the direction from the first end of the gradual change part to the second end of the gradual change part. Therefore, when refrigerants flow into the liquid storage cavity through the liquid inlet pipe, vibration energy generated by flowing of the refrigerants can be transmitted from the second end of the gradual change part to the first end of the gradual change part, the vibration energy can be dissipated and weakened in the vibration transmission process with the sectional area from large to small, and then the vibration and noise reduction performance of the liquid storage device and the refrigeration equipment can be improved.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Art

[0002] Refrigerator, freezer and other refrigeration equipment is one of the indispensable household appliances in people's home life. With the improvement of people's living standards, the requirements for refrigeration equipment products are getting higher and higher.

[0003] The accumulator is a container inside the refrigerator that stores refrigerator refrigerant so that it can be released into the refrigeration system when needed. The front end of the accumulator is connected to the evaporator and the back end is connected to the compressor. The role of the accumulator is to ensure a steady supply of refrigerant to maintain the refrigerator's cooling efficiency and temperature stability.

[0004] At present, in the refrigeration system of relevant refrigeration equipment, the structural design of the liquid storage device is not reasonable enough, lacks vibration reduction design, is prone to noise, and has weak vibration reduction and noise reduction capabilities. Summary of the invention

[0005] The object of the present invention is to provide a refrigeration device to optimize the structure of a liquid reservoir of the refrigeration device in the related art and to improve the vibration reduction and noise reduction performance of the liquid reservoir.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a refrigeration device, which comprises a box body and a refrigeration system arranged in the box body, wherein the refrigeration system has a liquid reservoir, and the liquid reservoir comprises: a shell body, wherein a liquid reservoir chamber is arranged inside the shell body; a liquid inlet pipe is arranged at one end of the shell body; the inner end of the liquid inlet pipe extends from one end of the liquid reservoir chamber into the liquid reservoir chamber and is communicated with the liquid reservoir chamber; the outer end of the liquid inlet pipe is exposed to the shell body and is used for refrigerant to flow in; a liquid outlet pipe is arranged at the other end of the shell body; the inner end of the liquid outlet pipe is communicated with the other end of the liquid reservoir chamber, and the outer end of the liquid outlet pipe is used for refrigerant to flow out; wherein, an integrally formed gradient portion is convexly provided on the outer peripheral wall of the liquid inlet pipe located in the liquid reservoir chamber; the end of the gradient portion close to the inner end of the liquid inlet pipe is the first end, and the end of the gradient portion close to the outer end of the liquid inlet pipe is the second end; in the direction from the first end of the gradient portion toward the second end thereof, the outer diameter of the gradient portion gradually increases.

[0008] According to another aspect of the present invention, the present invention provides a refrigeration device, which includes a box body and a refrigeration system arranged in the box body, wherein the refrigeration system has a liquid reservoir, and the liquid reservoir includes: a shell body, wherein a liquid reservoir chamber is arranged inside the shell body; a liquid inlet pipe is arranged at one end of the shell body; the inner end of the liquid inlet pipe extends from one end of the liquid reservoir chamber into the liquid reservoir chamber and is communicated with the liquid reservoir chamber; the outer end of the liquid inlet pipe is exposed to the shell body and is used for refrigerant to flow in; a liquid outlet pipe is arranged at the other end of the shell body; the inner end of the liquid outlet pipe is communicated with the other end of the liquid reservoir chamber, and the outer end of the liquid outlet pipe is used for refrigerant to flow out; wherein a gradient section is arranged between the liquid outlet pipe and the end of the shell body, and the inner end of the liquid outlet pipe passes through the gradient section and is communicated with the liquid reservoir chamber; in the direction from the axial direction of the liquid outlet pipe toward the shell body, the outer diameter of the gradient section gradually increases; and a vibration-damping sleeve is sleeved on the outer peripheral wall of the connection between the gradient section and the liquid outlet pipe.

[0009] The embodiments of the present invention have the following advantages and positive effects: in the refrigeration equipment of the embodiments of the present invention, the refrigeration system has a liquid reservoir, the liquid reservoir includes a shell, a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is extended from one end of the shell into a liquid storage cavity arranged in the shell, and a gradient portion is provided on the outer peripheral wall of the inner end of the liquid inlet pipe, and the outer diameter of the gradient portion gradually increases from the first end toward the second end. Therefore, when the refrigerant flows into the liquid storage cavity through the liquid inlet pipe, the vibration energy generated by the flow of the refrigerant can be transmitted from the second end of the gradient portion toward the first end, and the vibration energy can be dissipated and weakened in the vibration transmission process from large to small cross-sectional area, thereby improving the vibration reduction and noise reduction performance of the liquid reservoir and the refrigeration equipment to maintain the refrigeration efficiency of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a refrigeration device according to an embodiment of the present invention.

[0011] Figure 2 yes Figure 1 Schematic diagram of the structure of the internal evaporator and liquid receiver.

[0012] Figure 3 yes Figure 2 Schematic diagram of the structure of the liquid reservoir.

[0013] Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective.

[0014] Figure 5 yes Figure 3 Top view of the .

[0015] Figure 6 yes Figure 5 AA section view.

[0016] Figure 7 yes Figure 3 Front view of .

[0017] Figure 8 yes Figure 7 Middle BB section view.

[0018] Fig. 9 yes Figure 3 A cross-sectional view of .

[0019] Fig.10 yes Figure 6 Magnified view of area C.

[0020] Fig.11 yes Figure 4 Schematic diagram of local decomposition.

[0021] Fig.12 yes Figure 6 Magnified view of area D in the middle.

[0022] Fig.13 yes Figure 8 Magnified view of area E in the middle.

[0023] Fig.14 yes Figure 7 Schematic diagram of the structure under another installation method.

[0024] Fig.15 yes Fig.14 Top view of the .

[0025] Fig.16 yes Fig.15 FF section view.

[0026] The reference numerals in the accompanying drawings are explained as follows: 1. Box body; 11. Box door; 3. Evaporator; 31. Outlet pipe; 4. Liquid reservoir; 41. Shell; 410. Liquid storage chamber; 411. Marking part; 42. Liquid inlet pipe; 421. Vibration damping groove; 43. Liquid outlet pipe; 44. Gradient part; 45. Vibration damping member; 46. Gradient section; 47. Vibration damping sleeve; 48. Gradient member; 49. Vibration damping ring. DETAILED DESCRIPTION

[0027] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0028] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Figure 1 It is a structural schematic diagram of a refrigeration device according to an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of the structure of the internal evaporator 3 and the liquid reservoir 4.

[0032] See also Figure 1 to Figure 2 As shown, the refrigeration device provided in the embodiment of the present invention mainly includes a box body 1 and a refrigeration system arranged in the box body 1. The following takes a refrigerator as an example to illustrate the various structures of the refrigeration device. It should be noted that in other embodiments, the refrigeration device can also be other refrigeration devices such as a freezer and a display cabinet.

[0033] The box body 1 is configured as an outer shell of the refrigerator. The box body 1 adopts a rectangular hollow structure. It is understandable that in other embodiments, the box body 1 may also adopt a hollow shell 41 structure of other shapes.

[0034] A storage room (not shown in the figure) is arranged in the box body 1, and the storage room is used for storing food at low temperature.

[0035] In some embodiments, a plurality of mutually separated storage compartments (not shown in the figure) may be provided in the box body 1, and each separated storage compartment may be used as an independent low-temperature storage space, such as a freezer, a refrigerator, a fruit and vegetable compartment, and a temperature-changing chamber, etc., to meet different refrigeration requirements such as freezing, refrigeration, fruit and vegetable preservation, and temperature-changing according to different types of food, and to store them. The plurality of storage compartments may be arranged in upper and lower partitions, or in left and right partitions.

[0036] The box body 1 is provided with a box liner (not shown in the figure), the interior of the box liner is hollow, and the storage compartment is formed in the box liner. The front side of the box liner is open, and food can be put into the corresponding storage compartment through the front side opening of the box liner. It can be understood that a plurality of box liner can be provided in the box body 1, and one or more storage compartments can be formed in each box liner.

[0037] See also Figure 1 and Figure 2 As shown, a box door 11 is provided on the front side of the box body 1. The box door 11 is movably provided on the front side of the box body 1. The box door 11 is configured to be able to open and close the storage compartment, that is, the box door 11 can open and close the front opening of the box.

[0038] In some embodiments, the door 11 is a rotating door structure. The door 11 is rotatably arranged on the front side of the cabinet 1. In this case, the door 11 can be used as a common door structure, such as a refrigerator door, a freezer door, etc. Specifically, the door 11 can be connected to the cabinet 1 by a hinge, so that the door 11 of the refrigerator can rotate around the axis of the hinge to open and close the refrigerator door 11, thereby opening and closing the corresponding storage compartment.

[0039] It should be noted that, in some embodiments, the cabinet door 11 may also be a push-pull door structure. The cabinet door 11 is arranged on the front side of the cabinet 1 in a push-pull manner, and in this case, the cabinet door 11 can be used as a drawer door.

[0040] In some embodiments, a refrigeration system is provided in the box 1, and the refrigeration system is used to provide refrigeration for the inside of the refrigerator to maintain a low temperature environment in each storage room. The refrigeration system includes a compressor, a condenser, a throttle, an evaporator 3 and a liquid reservoir 4, etc., and a refrigeration cycle is formed between the compressor, the condenser, the throttle, the evaporator 3 and the liquid reservoir 4.

[0041] The compressor is arranged in the box body 1. Specifically, a compression chamber is arranged in the box body 1, and the compressor is installed in the compression chamber to facilitate the disassembly and assembly and heat dissipation of the compressor. The compressor is used to compress the refrigerant, so that the refrigerant in the compressor is converted into a high-temperature and high-pressure refrigerant. The compressor has an exhaust port and a return port. The high-temperature and high-pressure refrigerant flows out of the compressor from the exhaust port, and becomes a low-temperature and low-pressure refrigerant after a refrigeration cycle. The low-temperature and low-pressure refrigerant can return to the compressor from the return port and be compressed again by the compressor into a high-temperature and high-pressure refrigerant.

[0042] The condenser is arranged in the box body 1. Specifically, the condenser can also be arranged in the compression chamber. The inlet end of the condenser is connected to the exhaust port of the compressor, and the outlet end of the condenser is connected to the inlet end of the evaporator 3 through the throttle. The condenser can be used to condense the refrigerant flowing out of the compressor, and after throttling and reducing the pressure through the throttle, it is transported into the evaporator 3. In addition, the throttle can adopt a throttling component such as a capillary tube.

[0043] The evaporator 3 is arranged in the box body 1. Specifically, an evaporation chamber is arranged in the box body 1, and the evaporation chamber is separated from the storage room. When the refrigerant flows into the evaporator 3, the refrigerant evaporates and absorbs heat in the pipeline of the evaporator 3, so that the evaporator 3 can absorb the heat of the evaporation chamber, and then a large amount of cold air is formed in the evaporation chamber, and the cold air is transported to the corresponding storage room through the air duct, thereby realizing the refrigeration function of the storage room.

[0044] The outlet end of the evaporator 3 is connected to the return air port of the compressor. Therefore, the refrigerant in the evaporator 3 can return to the compressor for recompression, thereby forming a refrigeration cycle.

[0045] See also Figure 2 As shown, the accumulator 4 is arranged at the outlet end of the evaporator 3, and is arranged between the outlet end of the evaporator 3 and the return air port of the compressor. That is, one end of the accumulator 4 is connected to the outlet end of the evaporator 3, and the other end of the accumulator 4 is connected to the return air port of the compressor. The accumulator 4 is used to store the refrigerant so that it can be released into the refrigeration system when needed. The refrigerant in the pipeline of the evaporator 3 can flow into the accumulator 4 from the outlet end of the evaporator 3, and the refrigerant in the accumulator 4 can flow back to the compressor to realize the refrigeration cycle.

[0046] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle liquid reservoir 4. Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective. Figure 5 yes Figure 3 Top view of the . Figure 6 yes Figure 5 AA section view.

[0047] See also Figures 2 to 6 As shown, in some embodiments, the liquid reservoir 4 includes a shell 41 , a liquid inlet pipe 42 and a liquid outlet pipe 43 .

[0048] The shell 41 is a tank structure, and a liquid storage chamber 410 for storing refrigerant is formed inside the shell 41. The shell 41 can be a tubular structure with a circular cross section. In other embodiments, the shell 41 can also be a hollow structure with other cross sections.

[0049] The liquid inlet pipe 42 is arranged at one end of the shell 41. One end of the liquid inlet pipe 42 extends into the shell 41, and the other end of the liquid inlet pipe 42 is exposed to the shell 41. The end of the liquid inlet pipe 42 extending into the shell 41 is the inner end, and the inner end of the liquid inlet pipe 42 extends from the first end of the liquid storage chamber 410 into the liquid storage chamber 410, and is connected with the inside of the liquid storage chamber 410. The end of the liquid inlet pipe 42 exposed to the shell 41 is the outer end, and the outer end of the liquid inlet pipe 42 is used to be connected with the outlet end of the evaporator 3, and then used for the refrigerant to flow in. Therefore, the refrigerant flowing out of the pipeline of the evaporator 3 can flow into the liquid storage chamber 410 through the liquid inlet pipe 42. The flow direction of the refrigerant in the liquid inlet pipe 42 is from the outer end of the liquid inlet pipe 42 to the inner end of the liquid inlet pipe 42.

[0050] The liquid outlet pipe 43 is arranged at the other end of the shell 41. One end of the liquid outlet pipe 43 is connected to the liquid storage chamber 410 inside the shell 41, and the other end of the liquid outlet pipe 43 is used to connect to the return air port of the compressor. The end of the liquid outlet pipe 43 connected to the liquid storage chamber 410 is the inner end, that is, the inner end of the liquid outlet pipe 43 is connected to the liquid storage chamber 410. The other end of the liquid outlet pipe 43 is the outer end, that is, the outer end of the liquid outlet pipe 43 is used for the refrigerant to flow out. Therefore, the refrigerant flowing out of the pipeline of the evaporator 3 can flow into the liquid storage chamber 410 through the liquid inlet pipe 42, and flow out from the other end of the liquid storage chamber 410 and the liquid outlet pipe 43. The flow direction of the refrigerant in the liquid outlet pipe 43 is from the inner end of the liquid outlet pipe 43 to the outer end of the liquid outlet pipe 43.

[0051] Figure 7 yes Figure 3 Front view of . Figure 8 yes Figure 7 Middle BB section view. Fig. 9 yes Figure 3 A cross-sectional view of . Fig.10 yes Figure 6 Magnified view of area C.

[0052] See also Figures 2 to 10As shown, in some embodiments, inside the liquid storage chamber 410, a gradient portion 44 is convexly provided on the outer peripheral wall of the liquid inlet pipe 42, and the gradient portion 44 is integrally formed on the outer peripheral wall of the liquid inlet pipe 42. The gradient portion 44 is used to reduce vibration and noise of the liquid inlet pipe 42 when the refrigerant enters the liquid storage chamber 410 from the liquid inlet pipe 42. Specifically, the end of the gradient portion 44 close to the inner end of the liquid inlet pipe 42 is the first end, and the end of the gradient portion 44 close to the outer end of the liquid inlet pipe 42 is the second end. In the direction from the first end of the gradient portion 44 to the second end, the outer diameter of the gradient portion 44 gradually increases. Therefore, when the refrigerant flows into the liquid storage chamber 410 through the liquid inlet pipe 42, the refrigerant flows from the outer end of the liquid inlet pipe 42 to the inner end of the liquid inlet pipe 42, and then the vibration energy generated by the flow of the refrigerant can be transmitted from the second end of the gradient portion 44 toward the first end of the gradient portion 44. The cross-sectional area of ​​the liquid inlet pipe 42 gradually decreases in the direction from the second end of the gradient portion 44 toward the first end of the gradient portion 44. Therefore, the vibration energy can be dissipated and weakened in the process of vibration transmission from large to small cross-sectional area, thereby improving the vibration reduction and noise reduction performance of the liquid storage device 4 and the overall vibration reduction and noise reduction performance of the refrigeration equipment.

[0053] In some embodiments, the second end of the gradient portion 44 is integrally connected to the inner wall of the shell 41, that is, the second end of the gradient portion 44 is integrally connected to the inner end wall of the liquid storage chamber 410. Therefore, when the refrigerant flows into the liquid storage chamber 410 through the liquid inlet pipe 42, the vibration energy of the outer end of the liquid inlet pipe 42 and the vibration energy of the shell 41 can be directly transmitted toward the first end of the gradient portion 44 through the second end of the gradient portion 44, so that this part of the vibration energy can be dissipated and weakened during the transmission process on the gradient portion 44, thereby improving the vibration reduction and noise reduction performance of the liquid storage device 4.

[0054] In some embodiments, there is a gap between the first end of the gradient portion 44 and the inner end surface of the liquid inlet pipe 42, so that the inner end of the liquid inlet pipe 42 can be arranged deep inside the liquid storage chamber 410, thereby reducing the noise generated when the refrigerant at the inner end of the liquid inlet pipe 42 erupts.

[0055] See also Fig.10 As shown, in some embodiments, the outer peripheral wall of the gradient portion 44 is arranged in a curved surface, and the height of the curved surface of the gradient portion 44 conforms to the acoustic black hole formula: y = 0.06x 3, wherein the first end of the gradient portion 44 is the zero point, and the distance between the first end of the gradient portion 44 and the outer wall of the liquid inlet pipe 42 is zero; y is the height of the curved surface position of the gradient portion 44 protruding from the outer wall of the liquid inlet pipe 42, and x is the distance between the curved surface position of the gradient portion 44 and the first end of the gradient portion 44. Therefore, in the direction from the first end of the gradient portion 44 toward the second end, the outer diameter of the gradient portion 44 gradually increases, and the cross-sectional areas of the liquid inlet pipe 42 and the gradient portion 44 gradually increase. At the same time, an acoustic black hole can be formed in the gradient portion 44, so that when the refrigerant flows into the liquid storage chamber 410 through the liquid inlet pipe 42, the vibration energy generated by the flow of the refrigerant can be gradually dissipated and weakened during transmission at the gradient portion 44, thereby improving the vibration reduction and noise reduction effect of the liquid storage device 4.

[0056] See also Figures 6 to 10 As shown, in some embodiments, the gradient portion 44 is located within a preset angle range of the outer peripheral wall of the liquid inlet tube 42, and the area outside the preset angle range of the outer peripheral wall of the liquid inlet tube 42 is the internal space of the liquid storage chamber 410, thereby ensuring that the gradient portion 44 can improve the vibration reduction and noise reduction effect of the liquid reservoir 4, and can also ensure that the volume inside the liquid storage chamber 410 becomes larger.

[0057] In some embodiments, the contour shape of the gradual change portion 44 is a semicircular structure, that is, the preset angle is 180°, and the gradual change portion 44 is located within the 180° angle range of the outer peripheral wall of the liquid inlet tube 42. Therefore, in the axial length area of ​​the liquid inlet tube 42 where the gradual change portion 44 is located, the gradual change portion 44 is arranged in half of the outer peripheral wall of the liquid inlet tube 42, and the other half of the outer peripheral wall of the liquid inlet tube 42 is used to increase the internal volume of the liquid storage chamber 410.

[0058] It should be noted that, in other embodiments, the arrangement range of the gradual change portion 44 may also be larger or smaller than half the area, that is, the preset angle may also be larger or smaller than 180°. The arrangement range of the gradual change portion 44 may be adjusted as needed.

[0059] In some embodiments, the gradient portion 44 is formed by rotating the curved surface of the outer peripheral wall of the gradient portion 44 by a preset angle, that is, within the angle range of the gradient portion 44, the outer peripheral wall of the gradient portion 44 satisfies the curved surface height formula: y=0.06x 3 .

[0060] See also Figures 6 to 10As shown, in some embodiments, the liquid reservoir 4 further includes a vibration damping member 45, which is disposed at the connection between the first end of the gradient portion 44 and the inner end of the liquid inlet pipe 42. The vibration damping member 45 is made of a vibration damping material, such as clay, foam, etc. Since the vibration damping member 45 is located at the connection between the gradient portion 44 and the inner end of the liquid inlet pipe 42, it is located at the point where the cross-sectional curve of the inner wall of the liquid inlet pipe 42 changes the sharpest, that is, at the position where the cross-sectional thickness of the gradient portion 44 is the smallest, and the amplitude of the vibration energy is the largest at this point, so the vibration damping member 45 made of vibration damping material is arranged at this point, which can effectively dissipate the vibration energy and attenuate the amplitude, and the gradient portion 44 can gather the vibration energy at the vibration damping member 45 for dissipation, thereby further improving the vibration reduction and noise reduction performance of the liquid reservoir 4.

[0061] In some embodiments, a vibration-damping groove 421 is concavely formed on the outer peripheral wall of the connection between the first end of the gradient portion 44 and the inner end of the liquid inlet pipe 42, and the vibration-damping member 45 is embedded in the vibration-damping groove 421. Therefore, when the vibration energy is transmitted to the vibration-damping groove 421, the amplitude of the vibration energy is the largest, and the vibration-damping effect of the vibration-damping member 45 is the most obvious.

[0062] In some embodiments, one end of the vibration-damping groove 421 extends between the first end of the gradient portion 44 and the outer peripheral wall of the liquid inlet pipe 42, and the other end of the vibration-damping groove 421 is exposed to the outer peripheral wall of the gradient portion 44 and the liquid inlet pipe 42. Therefore, when the vibration-damping member 45 is embedded in the vibration-damping groove 421, one axial end of the vibration-damping member 45 can be clamped and fixed between the first end of the gradient portion 44 and the outer peripheral wall of the liquid inlet pipe 42, and the other axial end of the vibration-damping member 45 can be exposed to the outer peripheral wall of the gradient portion 44 and the liquid inlet pipe 42, so that the vibration-damping member 45 is stably fixed at the connection between the first end of the gradient portion 44 and the inner end of the liquid inlet pipe 42.

[0063] In some embodiments, the angle range of the vibration reduction groove 421 and the vibration reduction member 45 is consistent with the angle range of the gradient portion 44. That is, the vibration reduction groove 421 and the vibration reduction member 45 are arranged at the connection of the first end within the angle range of the gradient portion 44.

[0064] Fig.11 yes Figure 4 Schematic diagram of local decomposition. Fig.12 yes Figure 6 Magnified view of area D in the middle. Fig.13 yes Figure 8 Magnified view of area E in the middle.

[0065] See also Figures 3 to 13As shown, in some embodiments, a gradient section 46 is formed at the connection between the liquid outlet pipe 43 and the end of the shell 41, and the liquid outlet pipe 43 is connected to the end of the shell 41 through the gradient section 46. The inner end of the liquid outlet pipe 43 passes through the gradient section 46 and is connected to one end of the liquid storage chamber 410. In the direction from the liquid outlet pipe 43 axially toward the shell 41, the outer diameter of the gradient section 46 gradually increases. Therefore, when the refrigerant flows out from the inside of the liquid storage chamber 410 through the liquid outlet pipe 43, the vibration energy generated by the flow of the refrigerant can be transferred at the gradient section 46. And when the vibration energy is transmitted along the gradient section 46, the vibration energy is transmitted from the end with a large cross-sectional area to the end with a small cross-sectional area. Due to the cumulative effect of the vibration transmission, the vibration energy will be partially or completely dissipated and absorbed, thereby effectively improving the vibration reduction and noise reduction effect of the liquid storage device 4.

[0066] In some embodiments, the liquid outlet pipe 43 and the shell 41 are both columnar structures. The diameter of the liquid outlet pipe 43 is a first diameter, and the diameter of the shell 41 is a second diameter, and the second diameter is greater than the first diameter. At the same time, in the direction from the liquid outlet pipe 43 axially toward the shell 41, the diameter of the gradient section 46 gradually increases from the first diameter to the second diameter, so that one end of the gradient section 46 is smoothly or roundly connected to the outer peripheral wall of the liquid outlet pipe 43, and the other end of the gradient section 46 is smoothly or roundly connected to the outer peripheral wall of the shell 41. Therefore, in the direction from the liquid outlet pipe 43 toward the shell 41, the cross-sectional area of ​​the gradient section 46 gradually increases. When the refrigerant flows out from the liquid storage chamber 410 through the liquid outlet pipe 43, the vibration energy generated by the refrigerant flow and the vibration energy of the shell 41 can be transmitted from the end with a large cross-sectional area of ​​the gradient section 46 to the end with a small cross-sectional area. Due to the cumulative effect of vibration transmission, the vibration energy will be partially or completely dissipated and absorbed, thereby effectively improving the overall vibration reduction and noise reduction effect of the liquid storage device 4.

[0067] See also Fig.12 As shown, in some embodiments, the outer peripheral wall of the gradient section 46 is arranged in a curved surface, and the height of the curved surface of the gradient section 44 conforms to the acoustic black hole formula: y = 0.06x 3 . Among them, the end of the gradient section 46 close to the liquid outlet pipe 43 is the first end, and the first end of the gradient section 46 is taken as the zero point, and the distance between the first end of the gradient section 46 and the outer wall of the liquid inlet pipe 42 is zero. y is the height of the curved surface position of the gradient section 46 protruding from the outer wall of the liquid outlet pipe 43, and x is the distance between the curved surface position of the gradient section 46 and the first end of the gradient section 46. Therefore, in the direction from the first end of the gradient section 46 toward the second end, the outer diameter of the gradient section 46 gradually increases, and the cross-sectional area of ​​the gradient section 46 gradually increases. At the same time, an acoustic black hole can be formed in the gradient section 46, so that when the refrigerant flows into the liquid storage chamber 410 through the liquid outlet pipe 43, the vibration energy generated by the refrigerant flow can be gradually dissipated and weakened during transmission at the gradient section 46, thereby improving the vibration reduction and noise reduction effect of the liquid storage device 4.

[0068] See also Figures 11 to 13 As shown, in some embodiments, the liquid reservoir 4 further includes a vibration-damping sleeve 47, which is sleeved on the outer peripheral wall of the connection between the first end of the gradient section 46 and the liquid outlet pipe 43. The vibration-damping sleeve 47 is made of a vibration-damping material, such as clay, foam, etc. Since the vibration-damping sleeve 47 is located at the connection between the gradient section 46 and the liquid outlet pipe 43, it is located at the point where the cross-sectional curve of the liquid outlet pipe 43 and the gradient section 46 changes the sharpest, that is, it is located at the position where the cross-sectional area of ​​the gradient section 46 is the smallest, and the amplitude of the vibration energy is the largest here, so the vibration-damping sleeve 47 made of vibration-damping material is arranged here, which can effectively dissipate the vibration energy and attenuate the amplitude, and the gradient section 46 can collect the vibration energy at the vibration-damping sleeve 47 for dissipation, thereby further improving the vibration-damping and noise-reducing performance of the liquid reservoir 4.

[0069] It should be noted that vibration-damping material rings may also be provided on the outer wall of other positions of the gradient section 46 , which may also play a role in dissipating vibration energy and attenuating amplitude.

[0070] See also Figures 11 to 13 As shown, in some embodiments, the liquid reservoir 4 further includes a gradient member 48, which is annular and sleeved on the outer peripheral wall of the vibration-damping sleeve 47. At the same time, the axial thickness of the gradient member 48 gradually increases in the radial inward direction of the liquid outlet pipe 43. Therefore, when the residual energy of the vibration energy on the vibration-damping sleeve 47 can be transferred to the gradient member 48 and transferred from the inner peripheral edge of the gradient member 48 to the outer peripheral edge thereof, the residual vibration energy can be transferred from the inner edge with a larger cross-sectional area to the outer peripheral edge with a smaller cross-sectional area, so that the residual vibration energy can be gradually dissipated and weakened during the transmission at the gradient member 48, further improving the vibration reduction and noise reduction effect of the liquid reservoir 4.

[0071] In some embodiments, the gradient member 48 is sleeved on the end of the vibration-damping sleeve 47 close to the liquid outlet pipe 43. Therefore, it can be ensured that the residual vibration energy after vibration reduction on the vibration-damping sleeve 47 can be transferred from the end of the vibration-damping sleeve 47 close to the liquid outlet pipe 43 to the gradient member 48, and then the vibration and noise are further reduced through the energy transfer of the gradient member 48, thereby further improving the vibration and noise reduction effect of the liquid reservoir 4.

[0072] In some embodiments, the gradient piece 48 can clamp and fix the vibration-damping sleeve 47 on the outer peripheral wall of the liquid outlet pipe 43 , and ensure that the residual vibration energy on the vibration-damping sleeve 47 can be stably transferred to the gradient piece 48 .

[0073] In some embodiments, the end surface of the gradient member 48 facing away from the housing 41 is a plane, and the end surface of the gradient member 48 facing the housing 41 is a curved surface. The height of the curved surface of the gradient member 48 conforms to the acoustic black hole formula: y = 0.06x 3, wherein the outer peripheral edge of the gradient member 48 is the zero point, y is the height of the curved surface position of the gradient member 48 protruding from the end surface of the gradient member 48, and x is the distance between the curved surface position of the gradient member 48 and the outer peripheral edge of the gradient member 48. Therefore, the axial thickness of the gradient member 48 can be gradually increased along the radial inward direction of the liquid outlet pipe 43. At the same time, an acoustic black hole can be formed in the gradient member 48, so that when the refrigerant flows into the liquid storage chamber 410 through the liquid outlet pipe 43, the vibration energy generated by the flow of the refrigerant can first be gradually dissipated and weakened during transmission at the gradient section 46, and then gathered at the vibration reduction sleeve 47 for further dissipation and weakening, and the residual vibration energy on the vibration reduction sleeve 47 can be further gradually dissipated and weakened during transmission on the gradient member 48, thereby fully improving the vibration reduction and noise reduction effect of the liquid storage device 4.

[0074] See also Figures 11 to 13 As shown, in some embodiments, a vibration-damping ring 49 is attached to the end surface of the gradient member 48 facing away from the shell 41. The vibration-damping ring 49 is annular and arranged around the peripheral edge of the end surface of the gradient member 48. The vibration-damping ring 49 is made of vibration-damping material, such as clay, foam, etc. Since the vibration-damping ring 49 is located at the weakest part of the curved surface of the gradient member 48, that is, the vibration-damping ring 49 is located at the position where the wall thickness of the gradient member 48 is the smallest, the amplitude of the vibration energy here is the largest, so the vibration-damping ring 49 made of vibration-damping material is arranged here, which can effectively dissipate the vibration energy and attenuate the amplitude. The gradient member 48 can gather the vibration energy at the vibration-damping ring 49 for dissipation, and further improve the vibration-damping and noise-reducing performance of the liquid reservoir 4.

[0075] It should be noted that a vibration-damping material ring may also be provided on the end surface of other positions of the gradient member 48 , which may also play a role in dissipating the vibration energy and attenuating the amplitude.

[0076] See also Figures 2 to 7 As shown, in some embodiments, when the liquid storage device 4 is installed, the liquid storage device 4 is arranged horizontally, specifically, the shell 41 is arranged horizontally, and the liquid inlet pipe 42 and the liquid outlet pipe 43 are arranged horizontally. The outlet end of the evaporator 3 is formed with an outlet pipe 31, the outlet pipe 31 is arranged horizontally, and the outer end of the liquid inlet pipe 42 is horizontally connected to the outlet end of the evaporator 3. At the same time, the gradient portion 44 is arranged on the outer peripheral wall of the upper side of the inner end of the liquid inlet pipe 42. Therefore, in the liquid storage cavity 410, the gradient portion 44 is located in the upper area of ​​the liquid storage cavity 410, and the space under the gradient portion 44 and the liquid inlet pipe 42 is large, so more refrigerant liquid can be stored in the liquid storage cavity 410, so that the refrigerant liquid level in the liquid storage cavity 410 is reduced. When the refrigerant liquid flows into the liquid storage cavity 410 through the liquid inlet pipe 42, the vibration energy can be dissipated and weakened when it is transmitted at the gradient portion 44, and the gurgling bubbling sound at the inner end of the liquid inlet pipe 42 can be effectively reduced or avoided.

[0077] Fig.14 yes Figure 7 Schematic diagram of the structure under another installation method. Fig.15 yes Fig.14 Top view of the . Fig.16 yes Fig.15 FF section view.

[0078] See also Figures 14 to 16 As shown, in some embodiments, when the liquid reservoir 4 is installed, the liquid reservoir 4 is arranged horizontally, specifically, the shell 41 is arranged horizontally, and the liquid inlet pipe 42 and the liquid outlet pipe 43 are both arranged horizontally. An outlet pipe 31 is formed at the outlet end of the evaporator 3, and the outlet pipe 31 is arranged horizontally, and the outer end of the liquid inlet pipe 42 is horizontally connected to the outlet end of the evaporator 3. At the same time, the gradient portion 44 is arranged on the outer peripheral wall of the lower side of the inner end of the liquid inlet pipe 42. Therefore, in the liquid storage cavity 410, the gradient portion 44 is located in the lower area of ​​the liquid storage cavity 410, so the gradient portion 44 can be at least partially or completely immersed in the refrigerant liquid in the liquid storage cavity 410. When the refrigerant liquid flows into the liquid storage chamber 410 through the liquid inlet pipe 42, the vibration energy can be dissipated and weakened when transmitted at the gradient portion 44. At the same time, the vibration energy caused by the shaking of the liquid in the liquid storage chamber 410 can also be dissipated and weakened when transmitted at the gradient portion 44, thereby further improving the vibration reduction and noise reduction effect of the liquid storage device 4.

[0079] It should be noted that in some other embodiments, when the liquid reservoir 4 is installed, the liquid reservoir 4 is arranged horizontally, and the gradient portion 44 can also be arranged on the horizontal outer wall of the inner end of the liquid inlet pipe 42, or on the outer wall inclined upward and downward.

[0080] See also Figures 2 to 16 As shown, in some embodiments, a marking portion 411 is provided on the outer peripheral wall of the housing 41 and is arranged opposite to the gradient portion 44. The marking portion 411 may be a marking line or a marking surface or other marking symbols. The angle range of the marking portion 411 in the circumferential direction of the housing 41 is consistent with the angle range of the gradient portion 44 in the circumferential direction of the liquid inlet pipe 42. Therefore, the position of the gradient portion 44 in the liquid storage chamber 410 can be determined by determining the position of the marking portion 411 on the outer peripheral wall of the housing 41, thereby facilitating the adjustment and change of the installation position of the gradient portion 44 and the installation method of the liquid reservoir 4.

[0081] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigeration device, comprising a box and a refrigeration system arranged in the box, characterized in that: The refrigeration system has a liquid reservoir, and the liquid reservoir comprises: A shell, wherein a liquid storage cavity is provided inside the shell; A liquid inlet pipe is provided at one end of the shell; the inner end of the liquid inlet pipe extends from one end of the liquid storage cavity into the liquid storage cavity and is communicated with the liquid storage cavity; the outer end of the liquid inlet pipe is exposed to the shell and is used for the refrigerant to flow in; A liquid outlet pipe is provided at the other end of the shell; the inner end of the liquid outlet pipe is connected to the other end of the liquid storage chamber, and the outer end of the liquid outlet pipe is used for the refrigerant to flow out; Wherein, an integrally formed gradient portion is convexly provided on the outer peripheral wall of the liquid inlet tube located in the liquid storage cavity; an end of the gradient portion close to the inner end of the liquid inlet tube is a first end, and an end of the gradient portion close to the outer end of the liquid inlet tube is a second end; In a direction from the first end of the gradient portion toward the second end thereof, an outer diameter of the gradient portion gradually increases.

2. The refrigeration device according to claim 1, characterized in that: The second end of the gradient portion is integrally connected to the inner wall of the shell.

3. The refrigeration device according to claim 1, characterized in that: The liquid storage device comprises a vibration damping member, and the vibration damping member is arranged at the connection between the first end of the gradual change portion and the inner end of the liquid inlet pipe.

4. The refrigeration device according to claim 3, characterized in that: A vibration-damping groove is concavely provided on the outer peripheral wall of the connection between the first end of the gradual change portion and the inner end of the liquid inlet pipe, and the vibration-damping member is embedded in the vibration-damping groove.

5. The refrigeration device according to claim 4, characterized in that: One end of the vibration-damping groove extends between the first end of the gradient portion and the outer peripheral wall of the liquid inlet pipe, and the other end of the vibration-damping groove is exposed to the gradient portion and the outer peripheral wall of the liquid inlet pipe.

6. The refrigeration device according to claim 3, characterized in that: The outer peripheral wall of the gradient portion is arranged in a curved surface, and the height of the curved surface of the gradient portion conforms to the acoustic black hole formula: y=0.06x 3 , wherein y is the height of the curved surface position of the gradual change portion protruding from the outer wall of the liquid inlet pipe, and x is the distance between the curved surface position of the gradual change portion and the first end of the gradual change portion.

7. The refrigeration device according to claim 6, characterized in that: The gradient portion is arranged within a preset angle range of the outer peripheral wall of the liquid inlet pipe and is formed by rotating the curved surface of the gradient portion at a preset angle; The angle ranges of the vibration-damping groove and the vibration-damping member are consistent with the angle range of the gradual change portion.

8. The refrigeration device according to claim 7, characterized in that: The preset angle is 180°.

9. The refrigeration device according to claim 1, characterized in that: A gradient section is provided at the connection between the liquid outlet pipe and the end of the shell, and the inner end of the liquid outlet pipe passes through the gradient section and communicates with the liquid storage chamber; In the direction from the liquid outlet pipe axially toward the shell, the outer diameter of the gradual section gradually increases.

10. The refrigeration device according to claim 9, characterized in that: The diameter of the liquid outlet pipe is a first diameter, the diameter of the shell is a second diameter, and the second diameter is greater than the first diameter; In the direction from the liquid outlet pipe axially toward the shell, the diameter of the gradual section gradually increases from the first diameter to the second diameter.

11. The refrigeration device according to claim 9, characterized in that: The outer peripheral wall of the gradient section is arranged in a curved surface, and the height of the curved surface of the gradient section conforms to the acoustic black hole formula: y = 0.06x 3 , wherein y is the height of the curved surface position of the gradient section protruding from the outer wall of the liquid outlet pipe, and x is the distance between the curved surface position of the gradient section and the inner end of the liquid outlet pipe.

12. The refrigeration device according to claim 9, characterized in that: The liquid storage device also includes a vibration-damping sleeve, which is sleeved on the outer peripheral wall of the connection between the gradient section and the liquid outlet pipe.

13. The refrigeration device according to claim 12, characterized in that: The liquid storage device further comprises a gradient piece, which is annular and sleeved on the outer peripheral wall of the vibration-damping sleeve at one end close to the liquid outlet pipe; In the radially inward direction of the liquid outlet pipe, the axial thickness of the gradient member gradually increases.

14. The refrigeration device according to claim 13, characterized in that: The end surface of the gradient member facing away from the shell is a plane, and the end surface of the gradient member facing the shell is a curved surface. The height of the curved surface of the gradient member conforms to the acoustic black hole formula: y = 0.06x 3 , wherein y is the height of the curved surface position of the gradient member protruding from the end surface of the gradient member, and x is the distance between the curved surface position of the gradient member and the outer peripheral edge of the gradient member.

15. The refrigeration device according to claim 13, characterized in that: A vibration-damping ring is attached to the end surface of the gradient member facing away from the shell. The vibration-damping ring is annular and is arranged around the peripheral edge of the end surface of the gradient member.

16. The refrigeration device according to claim 1, characterized in that: The refrigeration system has an evaporator, and the liquid reservoir is arranged at the outlet end of the evaporator; The shell is arranged horizontally, and the outer end of the liquid inlet pipe is horizontally connected to the outlet end of the evaporator; The gradual change portion is arranged on the outer peripheral wall at the upper side of the inner end of the liquid inlet pipe; or, the gradual change portion is arranged on the outer peripheral wall at the lower side of the inner end of the liquid inlet pipe.

17. The refrigeration device according to claim 16, characterized in that: A marking portion is provided on the outer peripheral wall of the shell and is arranged opposite to the gradual change portion; The angular range of the marking portion in the circumferential direction of the shell is consistent with the angular range of the gradual change portion in the circumferential direction of the liquid inlet pipe.

18. A refrigeration device, comprising a box and a refrigeration system arranged in the box, characterized in that: The refrigeration system has a liquid reservoir, and the liquid reservoir comprises: A shell, wherein a liquid storage cavity is provided inside the shell; A liquid inlet pipe is provided at one end of the shell; the inner end of the liquid inlet pipe extends from one end of the liquid storage cavity into the liquid storage cavity and is communicated with the liquid storage cavity; the outer end of the liquid inlet pipe is exposed to the shell and is used for the refrigerant to flow in; A liquid outlet pipe is provided at the other end of the shell; the inner end of the liquid outlet pipe is connected to the other end of the liquid storage chamber, and the outer end of the liquid outlet pipe is used for the refrigerant to flow out; Wherein, a gradient section is provided between the liquid outlet pipe and the end of the shell, and the inner end of the liquid outlet pipe passes through the gradient section and communicates with the liquid storage chamber; in the direction from the axial direction of the liquid outlet pipe toward the shell, the outer diameter of the gradient section gradually increases; A vibration-damping sleeve is sleeved on the outer peripheral wall of the connection between the gradient section and the liquid outlet pipe.

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