Evaporator and storage equipment

Abstract

The invention discloses an evaporator and storage equipment, and belongs to the technical field of refrigeration. The evaporator comprises a base plate, an evaporation pipe, a capillary pipe and a silencer, the evaporation pipe is arranged on the base plate, and the outlet end of the evaporation pipe is used for being communicated with the outside; the capillary tube is arranged on the substrate; the inlet end of the capillary tube is communicated with the outside; the silencer comprises a shell and at least one perforated plate, the shell forms a containing cavity, the outlet end of the containing cavity is communicated with the inlet end of the evaporation pipe, the inlet end of the containing cavity is communicated with the outlet end of the capillary pipe to form a heat dissipation loop allowing a refrigerant to flow, the perforated plate is installed in the containing cavity, and a plurality of through holes are formed in the perforated plate. And the axis of the through hole is parallel to the flowing direction of the refrigerant. The silencer is arranged between the capillary tube and the evaporation tube, and the silencer comprises the shell and the perforated plate located in the shell, so that the transition length of a refrigerant from the capillary tube to the evaporation tube is prolonged as much as possible, fluid noise and vibration are weakened, the noise reduction effect is improved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of refrigeration, and particularly relates to an evaporator and a storage device. BACKGROUND

[0002] The blow evaporator is an evaporator made of double-layer aluminum plates. A certain specification of aluminum plate is treated on the surface, a pattern of evaporation pipe is printed on the butt joint surface of the aluminum plate, the composite panel is welded according to the pattern, and after heat treatment such as hot rolling, finally, nitrogen is used for blowing. At present, since the inner diameter of the outlet end of the capillary tube is much smaller than the inlet end of the evaporation pipe, when the refrigerant enters the evaporation pipe from the capillary tube, the pressure suddenly changes due to the sudden change of volume, that is, the pressure rapidly decreases, which causes the phase change of the refrigerant at the connection between the capillary tube and the evaporation pipe to generate a large amount of bubbles. At the same time, the bubbles will continue to grow with the decrease of pressure, and finally break to produce a burst noise. In addition, the larger the volume of the bubbles, the larger the burst noise generated, which affects the user experience. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an evaporator and a storage device, which sets an acoustic silencer between the capillary tube and the evaporation pipe, and the acoustic silencer comprises a shell and a perforated plate in the shell, so as to as far as possible to prolong the transition length between the capillary tube and the evaporation pipe, thereby strengthening the flow stabilization, weakening the fluid noise and vibration, improving the noise reduction effect, and improving the user experience.

[0004] In a first aspect, the present application provides an evaporator, comprising:

[0005] a substrate;

[0006] an evaporation pipe, the evaporation pipe is arranged on the substrate, and the outlet end of the evaporation pipe is used for communicating with the outside;

[0007] a capillary tube, the capillary tube is arranged on the substrate, and the inlet end of the capillary tube is used for communicating with the outside;

[0008] an acoustic silencer, the acoustic silencer comprises a shell and at least one perforated plate, the shell forms a containing cavity, the outlet end of the containing cavity is communicated with the inlet end of the evaporation pipe, the inlet end of the containing cavity and the outlet end of the capillary tube are communicated to form a heat dissipation loop for the refrigerant flow, and the perforated plate is installed in the containing cavity, and a plurality of through holes are arranged on the perforated plate, and the axis of the through hole is parallel to the flow direction of the refrigerant.

[0009] According to the evaporator of the present application, the refrigerant flows out of the outlet of the compressor and sequentially passes through the capillary tube, the sound absorber and the evaporating tube, and then returns to the compressor from the inlet of the compressor to form a heat dissipation circuit, so as to prolong the transition length of the refrigerant between the capillary tube and the evaporating tube as much as possible, thereby enhancing the flow stabilization, weakening the fluid noise and vibration, and improving the noise reduction effect. The perforated plate in the sound absorber helps to disperse and absorb sound waves, thereby reducing the propagation of noise and reducing the noise generated during the flow of the refrigerant; at the same time, the axis of the through hole is parallel to the flow direction of the refrigerant, which helps to reduce the resistance of the refrigerant flow and maintain the stability and continuity of the refrigerant flow. In addition, the shell in the sound absorber forms a containing cavity, which provides a stable space for the perforated plate and the refrigerant flow, so that the process of the refrigerant flowing from the capillary tube to the evaporating tube is smoother, the airflow noise caused by the rapid change of pressure and flow rate is reduced, and the overall operation of the evaporator is more stable, which not only improves the service life of the system, but also reduces the maintenance cost and operation cost, and improves the user experience.

[0010] According to an embodiment of the present application, when the number of the perforated plates is at least two, the two adjacent perforated plates are distributed in the flow direction of the refrigerant.

[0011] According to an embodiment of the present application, the shell comprises:

[0012] The first pipe segment, the inlet end of the first pipe segment is in communication with the outlet end of the capillary tube;

[0013] The main pipe segment, the perforated plate is installed in the main pipe segment, the inlet end of the main pipe segment is in communication with the outlet end of the first pipe segment, and the inner diameter of the main pipe segment is greater than the inner diameter of the first pipe segment;

[0014] The second pipe segment, the inlet end of the second pipe segment is in communication with the outlet end of the main pipe segment, the outlet end of the second pipe segment is in communication with the inlet end of the evaporating tube, and the inner diameter of the second pipe segment is smaller than the inner diameter of the main pipe segment.

[0015] According to an embodiment of the present application, the outer diameter of the second pipe segment is smaller than the inner diameter of the evaporating tube.

[0016] According to an embodiment of the present application, the inner diameter of the main pipe segment is greater than the inner diameter of the evaporating tube.

[0017] According to an embodiment of the present application, the inner diameter of the main pipe segment ranges from 6 to 18 mm.

[0018] According to an embodiment of the present application, the length of the main pipe segment is L, which satisfies the following condition: L=(2n+1) x λ / 4, wherein n is a natural number and λ is the target sound absorption frequency.

[0019] According to one embodiment of the present application, further comprising:

[0020] A noise reduction pipe assembly is arranged on the base plate, an inlet end of the noise reduction pipe assembly is communicated with the outlet end of the capillary pipe, and an outlet end of the noise reduction pipe assembly is communicated with the inlet end of the muffler, wherein an inner diameter of the noise reduction pipe assembly is greater than an outer diameter of the capillary pipe, and an outer diameter of the noise reduction pipe assembly is less than an inner diameter of the muffler pipe.

[0021] According to one embodiment of the present application, part of the noise reduction pipe assembly is arranged in the shell.

[0022] In a second aspect, the present application provides a storage device, which comprises:

[0023] A cabinet body;

[0024] A compressor arranged in the cabinet body; and

[0025] An evaporator as described above arranged in the cabinet body and connected with the compressor to form a heat dissipation loop.

[0026] According to the storage device of the present application, by arranging a muffler between the capillary pipe and the evaporation pipe in the evaporator, and the muffler comprising a shell and a porous plate arranged in the shell, the transition length of the refrigerant from the capillary pipe to the evaporation pipe is as long as possible, so that the flow stabilization is enhanced, the fluid noise and vibration are weakened, the noise reduction effect is improved, and the user experience is improved.

[0027] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0029] Figure 1 is one of the structural schematic diagrams of the evaporator provided by the embodiments of the present application;

[0030] Figure 2 is the second structural schematic diagram of the evaporator provided by the embodiments of the present application;

[0031] Figure 3 is the structural schematic diagram of the cooperation of the noise reduction pipe assembly and the muffler provided by the embodiments of the present application Figure 1 ;

[0032] Figure 4 is the structural schematic diagram of the cooperation of the noise reduction pipe assembly and the muffler provided by the embodiments of the present application Figure 2 ;

[0033] Figure 5 Fig. 1 is a structural schematic diagram of a porous plate provided by an embodiment of the present application.

[0034] Reference signs:

[0035] 100, substrate;

[0036] 200, evaporation pipe;

[0037] 300, capillary tube;

[0038] 400, return pipe;

[0039] 500, noise reduction pipe assembly; 510, transition pipe section; 511, straight pipe body; 512, elbow pipe body;

[0040] 520, throttle pipe section;

[0041] 600, muffler; 610, shell; 6101, accommodating cavity; 611, first pipe section; 612, main pipe section; 613, second pipe section;

[0042] 620, porous plate; 621, through hole. DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0044] Reference is made below to Figures 1-5 The evaporator provided by the embodiments of the present application is described below, which comprises a substrate 100, an evaporation pipe 200, a capillary tube 300 and a muffler 600.

[0045] The substrate 100 is used to provide a stable mounting position, which is made of metal or other strong materials to ensure that it can withstand the weight of the evaporation pipe 200, the capillary tube 300 and the noise reduction pipe, as well as the vibration and temperature change during operation. It should be noted that the size and shape of the substrate 100 can be designed according to actual needs, and the embodiments of the present application do not make specific limitations thereto.

[0046] The evaporation pipe 200 is arranged on the substrate 100, and the outlet end of the evaporation pipe 200 is used to communicate with the outside (such as the inlet end of the compressor). It should be noted that the specific size and shape of the evaporation pipe 200 can be designed according to actual needs, and the embodiments of the present application do not make specific limitations thereto.

[0047] In the embodiment, the evaporation pipe 200 is obtained by blow molding the substrate 100, i.e., the evaporator is a blow type evaporator, which not only improves the heat exchange efficiency, but also helps to reduce noise and vibration and improve the stability and service life of the entire evaporator due to the close contact of the evaporation pipe 200 to the substrate 100.

[0048] It can be understood that the evaporation pipe 200 is used to convert the liquid refrigerant into a gaseous state, i.e., the refrigerant absorbs heat and evaporates in the evaporation pipe 200, and then enters the compressor for the next cycle. The evaporation pipe 200 can be provided on only one side of the substrate 100, or the evaporation pipe 200 can be provided on both sides of the substrate 100, which is not specifically limited in the embodiment.

[0049] It should be noted that the refrigerant includes but is not limited to ammonia (NH3), freon (CFCs), hydrogen fluoride (HCFCs), hydrofluorocarbons, hydrofluorocarbons (HFCs), alkanes (HCs), and water.

[0050] The capillary tube 300 is provided on the substrate 100, and the inlet end of the capillary tube 300 is used to communicate with the outside (such as the outlet end of the compressor). The connection mode between the capillary tube 300 and the substrate 100 includes but is not limited to gluing, welding or threaded connection. It should be noted that the specific size and shape of the capillary tube 300 can be designed according to actual needs, which is not specifically limited in the embodiment.

[0051] It can be understood that since the outer diameter of the capillary tube 300 is much smaller than the inner diameter of the evaporation pipe 200, it can play a throttling role, and in addition, the inlet end of the capillary tube 300 is communicated with the outlet end of the compressor, which can adjust the state of the refrigerant to a low pressure state, and realize accurate control of the refrigerant flow.

[0052] The muffler 600 includes a shell 610 and at least one perforated plate 620, the shell 610 forms a containing cavity 6101, the outlet end of the containing cavity 6101 is communicated with the inlet end of the evaporation pipe 200, the inlet end of the containing cavity 6101 and the outlet end of the capillary tube 300 are communicated to form a heat dissipation circuit for the refrigerant flow, the perforated plate 620 is installed in the containing cavity 6101, and a plurality of through holes 621 are provided on the perforated plate 620, the axis of the through hole 621 is parallel to the flow direction of the refrigerant. The material of the shell 610 includes but is not limited to hard plastic, stainless steel, aluminum alloy or titanium alloy, etc. The connection mode between the perforated plate 620 and the containing cavity 6101 includes but is not limited to threaded connection, rivet connection, buckle connection or welding, etc. It should be noted that the shape and size of the shell 610 and the perforated plate 620 and the number and specific distribution of the through holes 621 can be designed according to actual needs, which is not specifically limited in the embodiment.

[0053] It can be understood that the refrigerant flows out through the outlet end of the compressor and sequentially passes through the capillary tube 300, the silencer 600 and the evaporating tube 200, and then returns to the compressor from the inlet end of the compressor to form a heat dissipation circuit, so as to as far as possible to prolong the transition length of the refrigerant between the capillary tube 300 and the evaporating tube 200, thereby strengthening the flow stabilization, weakening the fluid noise and vibration, and improving the noise reduction effect. The perforated plate 620 in the silencer 600 helps to disperse and absorb sound waves, thereby reducing the propagation of noise and reducing the noise generated when the refrigerant flows; meanwhile, the axis of the through hole 621 is parallel to the flow direction of the refrigerant, which helps to reduce the resistance of the refrigerant flow and maintain the stability and continuity of the refrigerant flow. In addition, the shell 610 in the silencer 600 forms a containing cavity 6101, which provides a stable space for the perforated plate 620 and the refrigerant flow, so that the process of the refrigerant flowing from the capillary tube 300 to the evaporating tube 200 is more smooth, the airflow noise caused by the rapid change of pressure and flow rate is reduced, and the overall operation of the evaporator is more stable, which not only improves the service life of the system, but also reduces the maintenance cost and operation cost, and improves the user experience.

[0054] According to the evaporator provided in the embodiments of the present application, by arranging the silencer 600 between the capillary tube 300 and the evaporating tube 200, and the silencer 600 comprising the shell 610 and the perforated plate 620 located in the shell 610, the transition length of the refrigerant between the capillary tube 300 and the evaporating tube 200 is as far as possible to be prolonged, thereby strengthening the flow stabilization, further weakening the fluid noise and vibration, improving the noise reduction effect, and improving the user experience.

[0055] In some embodiments, as shown in Figures 3 to 5 The number of the through holes 621 in each perforated plate 620 is between 150 and 200.

[0056] In some embodiments, as shown in Figure 3 and Figure 4 When the number of the perforated plates 620 is at least two, the adjacent two perforated plates 620 are distributed in the flow direction of the refrigerant.

[0057] It can be understood that the at least two perforated plates 620 are arranged in the containing cavity 6101, which not only helps to more evenly absorb and weaken the sound waves to as far as possible to improve the noise reduction effect in the limited length of the shell 610, but also can realize reducing the aggregation or blockage of the airflow in the local area during the refrigerant flow process, increasing the structural stability in the containing cavity 6101, and reducing the deformation of the silencer 600 caused by the refrigerant flow or other external factors. In the present embodiment, the number of the perforated plates 620 is three.

[0058] In some embodiments, as shown in Figure 3 andFigure 4 As shown, the shell 610 includes a first pipe segment 611, a main pipe segment 612, and a second pipe segment 613, the inlet end of the first pipe segment 611 is connected to the outlet end of the capillary tube 300; the porous plate 620 is installed in the main pipe segment 612, the inlet end of the main pipe segment 612 is connected to the outlet end of the first pipe segment 611, and the inner diameter of the main pipe segment 612 is larger than that of the first pipe segment 611; the inlet end of the second pipe segment 613 is connected to the outlet end of the main pipe segment 612, the outlet end of the second pipe segment 613 is connected to the inlet end of the evaporation pipe 200, and the inner diameter of the second pipe segment 613 is smaller than that of the main pipe segment 612.

[0059] It can be understood that, along the flow direction of the refrigerant, the capillary tube 300, the first pipe segment 611, the main pipe segment 612, the second pipe segment 613, and the evaporation pipe 200 are connected in sequence, and the inner diameter of the main pipe segment 612 is not only larger than that of the first pipe segment 611, but also larger than that of the second pipe segment 613, so that the accommodation cavity 6101 has a structure of first expansion and then contraction, which helps to make the refrigerant flow more smoothly and reduce turbulence and noise. At the same time, the first pipe segment 611 and the second pipe segment 613 help to guide the refrigerant to flow smoothly through the silencer 600, reduce the direct impact of the airflow on the porous plate 620, thereby reducing noise and improving the durability of the silencer 600.

[0060] In some embodiments, as shown in Figure 3 and Figure 4 the outer diameter of the second pipe segment 613 is smaller than the inner diameter of the evaporation pipe 200.

[0061] It can be understood that, the outer diameter of the second pipe segment 613 is smaller than the inner diameter of the evaporation pipe 200, which ensures the smooth transition of the refrigerant when flowing from the second pipe segment 613 into the evaporation pipe 200, and helps to reduce turbulence and noise caused by sudden changes in pipe cross-section, and reduce pressure loss caused by the connection of the second pipe segment 613 and the evaporation pipe 200.

[0062] In some embodiments, as shown in Figure 4 part of the second pipe segment 613 is installed in the evaporation pipe 200.

[0063] It can be understood that, considering that the outer diameter of the second pipe segment 613 is smaller than the inner diameter of the evaporation pipe 200, part of the second pipe segment 613 is located in the evaporation pipe 200, which can reduce the additional pressure loss caused by the second pipe segment 613 without affecting the overall flow control of the refrigerant, and at the same time, through this integrated design, it reduces additional connection points and potential leakage risks, saves space, and possibly reduces material and manufacturing costs, and improves the reliability of the evaporator in use.

[0064] In this embodiment, the length of the second pipe segment 613 located in the evaporation pipe 200 ranges from 5 to 10 mm.

[0065] In some embodiments, as Figure 3 and Figure 4 As shown, the inner diameter of the main pipe section 612 is larger than the inner diameter of the evaporation tube 200 .

[0066] It can be understood that the larger inner diameter of the main pipe section 612 can provide more surface area, which helps to pre-cool the refrigerant before it enters the evaporator tube 200, improve the heat exchange efficiency of the evaporator tube 200, and reduce friction and wear in the refrigerant flow, reduce noise and vibration, and help improve the working performance, efficiency and user experience of the evaporator.

[0067] In this embodiment, the inner diameter of the main pipe section 612 ranges from 6 mm to 18 mm.

[0068] In some embodiments, as Figure 3 and Figure 4 As shown, the length of the main pipe section 612 is L, which satisfies the following condition: L=(2n+1)×λ / 4, where n is a natural number and λ is the target cancellation frequency.

[0069] It can be understood that by setting the length of the main pipe section 612 to a quarter of the wavelength that meets a specific frequency, a resonant silencing effect on the target silencing frequency can be achieved, thereby achieving targeted reduction of noise within a specific frequency range, improving the overall performance of the silencer 600, and being able to select a suitable natural number n and target silencing frequency λ according to different application scenarios and silencing requirements to meet specific silencing requirements, thereby improving the flexibility of the evaporator.

[0070] In some embodiments, as Figure 2 to 4 As shown, the evaporator also includes a noise reduction tube assembly 500, which is arranged on the substrate 100, and the inlet end of the noise reduction tube assembly 500 is connected to the outlet end of the capillary tube 300, and the outlet end of the noise reduction tube assembly 500 is connected to the inlet end of the muffler 600, wherein the inner diameter of the noise reduction tube assembly 500 is larger than the outer diameter of the capillary tube 300, and the outer diameter of the noise reduction tube assembly 500 is smaller than the inner diameter of the muffler.

[0071] It should be noted that the refrigerant flows out through the outlet of the compressor and passes through the capillary tube 300, the noise reduction tube assembly 500, the muffler 600 and the evaporator tube 200 in sequence, and then returns to the compressor from the inlet to form a heat dissipation circuit, further extending the transition length of the refrigerant from the capillary tube 300 to the evaporator tube 200, thereby enhancing the flow stabilization effect, further weakening the fluid noise and vibration, and improving the noise reduction effect.

[0072] It can be understood that since the inner diameter of the noise reduction tube assembly 500 is larger than the outer diameter of the capillary tube 300, it helps to reduce the turbulence and impact sound generated by the refrigerant when flowing through; at the same time, the outer diameter of the noise reduction tube assembly 500 is smaller than the inner diameter of the first tube section 611, ensuring that the refrigerant can flow smoothly into the accommodating cavity 6101 without being obstructed by the size changes of the capillary tube 300 and the noise reduction tube assembly 500, thereby making the process of the refrigerant flowing from the capillary tube 300 to the muffler 600 smoother, reducing the airflow noise caused by rapid changes in pressure and flow rate, and making the overall operation of the evaporator more stable, which not only improves the service life of the system, but also reduces maintenance costs and operating costs, and improves the user experience.

[0073] In some embodiments, as Figure 4 As shown, a portion of the noise reduction tube assembly 500 is installed in the housing 610 .

[0074] It can be understood that by locating part of the noise reduction tube assembly 500 in the first tube section 611, the additional pressure loss caused by the connection between the noise reduction tube assembly 500 and the shell 610 can be reduced without affecting the overall flow control of the refrigerant. At the same time, this integrated design reduces additional connection points and potential leakage risks, saves space, and may reduce material and manufacturing costs, thereby improving the reliability of the evaporator.

[0075] In this embodiment, the length of the noise reduction tube assembly 500 within the first tube section 611 is in the range of 5 to 10 mm.

[0076] In some embodiments, as Figure 3 As shown, the noise reduction tube assembly 500 includes at least two transition tube sections 510 and at least one throttling tube section 520. The inner diameter of the transition tube section 510 is larger than the outer diameter of the capillary tube 300, and the outer diameter of the transition tube section 510 is smaller than the inner diameter of the evaporation tube 200. Two of the at least two transition tube sections 510 are connected to the capillary tube 300 and the first tube section 611, respectively. Two adjacent transition tube sections 510 are connected by a throttling tube section 520, and the outer diameter of the throttling tube section 520 is smaller than the inner diameter of the transition tube section 510. The connection method between the transition tube section 510 and the throttling tube section 520 includes, but is not limited to, gluing, welding, or threading. It should be noted that the specific size and shape of the transition tube section 510 and the throttling tube section 520 can be designed according to actual needs and are not specifically limited in this embodiment.

[0077] It should be noted that when two transition pipe sections 510 are provided, there is only one throttling pipe section 520, one of the transition pipe sections 510 is connected with the capillary tube 300 and the throttling pipe respectively, and the other transition pipe section 510 is connected with the first pipe section 611 and the throttling pipe respectively; when three or more transition pipe sections 510 are provided, there are at least two throttling pipe sections 520, one of the transition pipe sections 510 is connected with the capillary tube 300 and the throttling pipe respectively, and the other transition pipe section 510 is connected with the first pipe section 611 and the throttling pipe respectively, and the remaining transition pipe sections 510 are connected with two throttling pipes respectively.

[0078] It can be understood that by alternating the transition pipe sections 510 and the throttling pipe sections 520 with different inner diameters, the flow rate and pressure of the refrigerant can be further controlled, which helps to improve the stability and reliability of the entire evaporator, and reduce the possibility of mechanical failure caused by pressure fluctuations or excessive flow rate. At the same time, since the inner diameter of the transition pipe section 510 is greater than the outer diameter of the capillary tube 300, and the outer diameter of the transition pipe section 510 is less than the inner diameter of the first pipe section 611, the flow rate of the refrigerant is prevented from suddenly changing during the flow process from the capillary tube 300 to the muffler 600, and noise and vibration caused by flow rate changes are reduced. In addition, the outer diameter of the throttling pipe section 520 is less than the inner diameter of the transition pipe section 510, which can reduce the pressure of the refrigerant while controlling the flow rate into the transition pipe section 510. By precisely controlling the size and position of each of the throttling pipe section 520 and the transition pipe section 510, the refrigerant can be ensured to enter the first pipe section 611 at an appropriate flow rate and flow rate, thereby optimizing heat exchange efficiency.

[0079] In some embodiments, the material of at least one of the transition pipe section 510 and the throttling pipe section 520 includes but is not limited to copper, to further reduce vibration noise when the refrigerant flows. Exemplarily, the copper is TU2M (oxygen-free copper).

[0080] In some embodiments, the length of the transition pipe section 510 is not less than 120 mm, which prevents the occurrence of large turbulence when the refrigerant flows, plays a role in stabilizing the flow, ensures the weakening of fluid noise and vibration, and significantly improves the noise reduction effect.

[0081] In some embodiments, as shown in Figure 3 when the number of transition pipe sections 510 is at least three, the length of the transition pipe section 510 connected with one of the capillary tube 300 or the first pipe section 611 is greater than the length of the remaining transition pipe sections 510, thereby strengthening the flow stabilization effect, further weakening the fluid noise and vibration, and improving the noise reduction effect.

[0082] In some embodiments, as shown in Figure 3 the length of the transition pipe section 510 connected with one of the capillary tube 300 or the first pipe section 611 is not less than 180 mm.

[0083] It is understandable that, considering that one end of some transition pipe sections 510 needs to be connected to the capillary tube 300 or the first pipe section 611, by making the length of the transition pipe section 510 not less than 180 mm, the flow rate of the refrigerant can be more effectively controlled and the stability of the fluid dynamics can be maintained, the generation of turbulence and eddy currents can be reduced, and the response time of the refrigerant can be slowed down, reducing the mechanical stress and noise that may be generated by rapid response, and at the same time reducing local overheating or overcooling in the refrigerant flow, which helps to avoid unnecessary evaporation or condensation of the refrigerant and improve the reliability of the evaporator.

[0084] In this embodiment, Figure 3 As shown, three transition pipe sections 510 are provided and two throttling pipe sections 520 are provided, that is, the length of the transition pipe section 510 connected to the capillary tube 300 and the transition pipe section 510 connected to the evaporation tube 200 are not less than 180 mm, and the length of the transition pipe section 510 connected to the two throttling pipe sections 520 is not less than 120 mm.

[0085] In some embodiments, as Figure 3 As shown, the length of the throttling tube section 520 is 130 mm, which avoids the difficulty in controlling the flow rate and pressure of the refrigerant when the length is too short, and also avoids the excessive impact on the refrigerant flow in the entire evaporator when the length is too long, resulting in reduced refrigeration performance.

[0086] In some embodiments, as Figure 3 As shown, the partial throttling pipe section 520 is installed in the transition pipe section 510 .

[0087] It is understandable that, considering that the inner diameter of the transition pipe section 510 is larger than the outer diameter of the throttling pipe section 520, part of the throttling pipe section 520 is installed in the transition pipe section 510. This can reduce the additional pressure loss caused by the change in pipe diameter without affecting the overall flow control of the refrigerant. At the same time, this integrated design reduces additional connection points and potential leakage risks, saves space, and may reduce material and manufacturing costs, thereby improving the reliability of the evaporator.

[0088] In this embodiment, the length of the throttling pipe section 520 within the transition pipe section 510 ranges from 10 to 15 mm.

[0089] In some embodiments, as Figure 3As shown, the transition pipe section 510 includes two straight pipe bodies 511 and a curved pipe body 512, one of the two straight pipe bodies 511 is connected to the throttling pipe section 520, and the other of the two straight pipe bodies 511 is connected to the throttling pipe section 520, the capillary tube 300 or the first pipe section 611, and the extension direction of the straight pipe body 511 is consistent with the extension direction of the throttling pipe section 520; the two ends of the curved pipe body 512 are respectively connected to the two straight pipe bodies 511, and the outer wall of the curved pipe body 512 protrudes in the direction away from the straight pipe body 511.

[0090] It is understood that, considering the limited size of the base plate 100, the curved tube body 512 is provided to extend the transition length of the refrigerant from the capillary tube 300 to the evaporator tube 200 as much as possible within the limited space, thereby enhancing the flow stabilization effect, further reducing fluid noise and vibration, improving the noise reduction effect, optimizing the spatial layout, and improving the compactness and installation flexibility of the evaporator. At the same time, the straight tube body 511 provides a smooth transition area for the connection between the transition tube section 510 and the throttling tube section 520, the capillary tube 300, or the first tube section 611, respectively, reducing turbulence and noise caused by sudden changes in the pipe cross-section. In addition, the design of the curved tube body 512 helps to change the flow direction of the refrigerant while reducing the impact and vibration caused by the change in flow direction. The outer wall of the curved tube body 512 protrudes away from the straight tube body 511, which also helps to smoothly transition the refrigerant flow and reduce energy loss.

[0091] In some embodiments, as Figure 3 As shown, the bending radius R of the curved tube body 512 is not less than 25 mm, thereby avoiding the situation where the bending radius is too small, causing the refrigerant to encounter greater resistance and disturbance during the flow process, and the refrigerant flow state changes, resulting in eddy currents and greater noise.

[0092] In some embodiments, as Figure 3 As shown, the ratio of the inner diameter of the capillary tube 300 to the inner diameter of the transition tube section 510 is in the range of 0.3 to 0.5; and / or the inner diameter of the capillary tube 300 is the same as the inner diameter of the throttling tube section 520 .

[0093] It can be understood that, on the one hand, the ratio of the inner diameters of the capillary tube 300 and the transition tube section 510 is in the range of 0.3 to 0.5, and the inner diameters of the throttling tube section 520 and the capillary tube 300 are consistent, which helps to ensure the continuity and consistency of the refrigerant flow rate, ensure that the refrigerant flows smoothly in the system, and reduce pressure loss and noise caused by sudden changes in flow rate; on the other hand, precise control of the inner diameter ratio also helps to improve the heat exchange efficiency of the evaporator, prevent the refrigerant from generating unnecessary turbulence or eddy currents, thereby reducing energy loss and system wear, and simplifying the installation and maintenance process.

[0094] In this embodiment, the ratio of the inner diameter of the capillary tube 300 to the inner diameter of the transition tube section 510 is 0.4. The inner diameter of the capillary tube 300 is the same as the inner diameter of the throttling tube section 520, that is, the ratio of the inner diameter of the throttling tube section 520 to the inner diameter of the transition tube section 510 is also 0.4.

[0095] In some embodiments, as Figure 2 and Figure 3 As shown, a portion of the capillary tube 300 is installed in the noise reduction tube assembly 500 .

[0096] It can be understood that, considering that the inner diameter of the straight tube body 511 is larger than the outer diameter of the capillary tube 300, part of the capillary tube 300 is installed in the straight tube body 511. This can reduce the additional pressure loss caused by the change in tube diameter without affecting the overall flow control of the refrigerant. At the same time, this integrated design reduces additional connection points and potential leakage risks, saves space, and may reduce material and manufacturing costs, thereby improving the reliability of the evaporator.

[0097] In this embodiment, the length of the capillary tube 300 in the straight tube body 511 ranges from 10 to 15 mm.

[0098] In some embodiments, the wall thickness of the noise reduction tube assembly 500 ranges from 0.95 mm to 1.05 mm.

[0099] It is understandable that the difference between the outer diameter and inner diameter of the transition pipe section 510 and the throttling pipe section 520 is within the range of 0.95mm to 1.05mm, thereby controlling the weight and material cost of the assembly while ensuring the strength and noise reduction effect of the noise reduction pipe assembly 500.

[0100] In some embodiments, as Figure 2 As shown, the evaporator further includes a return air duct 400, which is disposed on the base plate 100. The inlet end of the return air duct 400 is connected to the outlet end of the evaporation tube 200. The outlet end of the return air duct 400 is used to communicate with the outside world (e.g., the inlet end of the compressor), and at least a portion of the capillary tube 300 is installed within the return air duct 400. The connection between the return air duct 400 and the base plate 100 includes, but is not limited to, gluing, welding, or threaded connection. It should be noted that the specific size and shape of the return air duct 400 can be designed according to actual needs and is not specifically limited in this embodiment.

[0101] It should be noted that the refrigerant flows out through the outlet of the compressor and passes through the capillary tube 300, the noise reduction tube assembly 500, the muffler 600, the evaporator tube 200 and the return air pipe 400 in sequence, and then returns to the compressor from the inlet to form a heat dissipation circuit, ensuring that the refrigerant circulates in the entire system, improving the efficiency and performance of the system. At the same time, the refrigerant flow in the capillary tube 300 is mixed with the refrigerant vapor in the return air pipe 400, which helps to pre-cool the refrigerant entering the compressor, thereby improving the working efficiency of the compressor.

[0102] It can be understood that at least part of the capillary tube 300 is installed in the return air pipe 400, which can pre-cool the refrigerant returning to the compressor, reduce the load of the compressor, extend its service life, improve the space utilization of the system, ensure the rationality of the refrigerant flow, and further reduce the vibration and noise caused by the refrigerant flow, thereby improving the user experience.

[0103] In this embodiment, the length of the capillary tube 300 in the return air pipe 400 is not less than 2000 mm.

[0104] The embodiment of the present application further provides a storage device, which includes a cabinet, a compressor, and the above-mentioned evaporator.

[0105] It should be noted that the storage equipment in the embodiment can be understood as refrigeration storage equipment in a broad sense, including but not limited to refrigerators, freezers, display cabinets, beverage cabinets, wine cabinets, cold storage cabinets and refrigerated vending machines and other refrigeration storage equipment. The storage equipment has diverse structural forms and a wide range of applications.

[0106] The cabinet body forms a storage cavity with a cabinet opening, which is used for storage. The cabinet body can be made of materials including, but not limited to, hard plastic, stainless steel, aluminum alloy, or titanium alloy. It should be noted that the shapes and sizes of the cabinet body, cabinet opening, and storage cavity can be designed according to actual needs and are not specifically limited in this embodiment.

[0107] The compressor is installed in the cabinet. The connection methods between the compressor and the cabinet include but are not limited to threaded connection, rivet connection, snap connection or welding.

[0108] It is understandable that the structure of the cabinet can provide a certain degree of sound insulation and vibration reduction for the compressor, help reduce the operating noise and vibration of the storage equipment, improve the user experience, and also play a role in dust protection, helping to maintain the stability and reliability of the storage system.

[0109] The evaporator is installed in the cabinet and connected to the compressor to form a heat dissipation circuit. The connection between the evaporator and the cabinet includes but is not limited to threaded connection, rivet connection, snap connection or welding.

[0110] It's understandable that connecting the evaporator to the compressor to form a heat dissipation circuit effectively manages the heat generated by the compressor, maintaining it at an appropriate operating temperature and improving its efficiency and lifespan. The cabinet structure also provides sound insulation and vibration reduction for the evaporator, helping to reduce operating noise and vibration in the storage device, improving the user experience. It also provides dust protection, helping to maintain the stability and reliability of the storage system.

[0111] According to the storage device provided in the embodiment of the present application, a silencer 600 is arranged between the capillary tube 300 and the evaporating tube 200 in the evaporator, and the silencer 600 includes a shell 610 and a porous plate 620 located in the shell 610, so as to extend the transition length of the refrigerant from the capillary tube 300 to the evaporating tube 200 as much as possible, thereby enhancing the flow stabilization effect, weakening the fluid noise and vibration, improving the noise reduction effect, and improving the user experience.

[0112] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship. Among them, the terms "first position" and "second position" are two different positions.

[0113] 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", "axial", "radial", "circumferential" 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 device or element referred to 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.

[0114] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0115] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0116] In the description of this application, “plurality” means two or more.

[0117] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0118] In the description of this application, the phrases "above," "above," and "above" a first feature of a second feature include the phrases "directly above" and "diagonally above" the first feature, or simply indicate that the first feature is higher in level than the second feature. The phrases "below," "below," and "below" a first feature of a second feature include the phrases "directly below" and "diagonally below" the first feature, or simply indicate that the first feature is lower in level than the second feature.

[0119] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0120] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An evaporator, characterized in that: include: substrate; an evaporation tube, wherein the evaporation tube is arranged on the substrate, and an outlet end of the evaporation tube is used to communicate with the outside world; A capillary tube is provided on the substrate, and an inlet end of the capillary tube is used for communicating with the outside world; A silencer comprising a shell and at least one porous plate, wherein the shell forms a accommodating cavity, the outlet end of the accommodating cavity is connected to the inlet end of the evaporating tube, the inlet end of the accommodating cavity and the outlet end of the capillary tube are connected to form a heat dissipation circuit for the flow of refrigerant, the porous plate is installed in the accommodating cavity, and a plurality of through holes are provided on the porous plate, and the axes of the through holes are parallel to the flow direction of the refrigerant.

2. The evaporator according to claim 1, characterized in that When there are at least two porous plates, two adjacent porous plates are spaced apart from each other along the flow direction of the refrigerant.

3. The evaporator according to claim 1, characterized in that The housing comprises: a first pipe section, wherein an inlet end of the first pipe section is connected to an outlet end of the capillary tube; a main pipe section, wherein the porous plate is installed in the main pipe section, the inlet end of the main pipe section is connected to the outlet end of the first pipe section, and the inner diameter of the main pipe section is larger than the inner diameter of the first pipe section; The second pipe section has an inlet end connected to the outlet end of the main pipe section, an outlet end of the second pipe section connected to the inlet end of the evaporation tube, and an inner diameter of the second pipe section is smaller than that of the main pipe section.

4. The evaporator according to claim 3, characterized in that The outer diameter of the second tube section is smaller than the inner diameter of the evaporation tube.

5. The evaporator according to claim 4, characterized in that The inner diameter of the main pipe section is larger than the inner diameter of the evaporation tube.

6. The evaporator according to claim 3, characterized in that The inner diameter of the main pipe section ranges from 6 to 18 mm.

7. The evaporator according to claim 3, characterized in that The length of the main pipe section is L, which satisfies the following condition: L=(2n+1)×λ / 4, where n is a natural number and λ is a target mute frequency.

8. The evaporator according to any one of claims 1 to 7, characterized in that Also includes: A noise reduction tube assembly is arranged on the substrate, the inlet end of the noise reduction tube assembly is connected to the outlet end of the capillary tube, and the outlet end of the noise reduction tube assembly is connected to the inlet end of the muffler, wherein the inner diameter of the noise reduction tube assembly is larger than the outer diameter of the capillary tube, and the outer diameter of the noise reduction tube assembly is smaller than the inner diameter of the muffler.

9. The evaporator according to claim 8, characterized in that Part of the noise reduction tube assembly is installed in the shell.

10. A storage device, characterized in that: include: Cabinet; A compressor, the compressor being installed in the cabinet; as well as The evaporator according to claims 1 to 9, wherein the evaporator is installed in the cabinet and connected to the compressor to form a heat dissipation circuit.

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