Refrigerator defrosting system and refrigerator
Patent Information
- Application Number
- CN202522270142.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0003]但是这种化霜系统中，电加热管的功率较大，比较耗能，且是通过辐射或热空气对流的方式进行的化霜，热转换效率较低，化霜时间长，且加热不均匀，容易造成蒸发器局部过热而导致蒸发器及其附近部件出现热损伤，影响用户使用体验
[0009]可以理解的是，本申请通过设置集水盘机构和输送机构，并将第一集水盘设于冷凝器的底部，使进口与第一集水盘连通，出口位于蒸发器的上方且朝蒸发器设置，如此，冷凝器在散热时能够将热量传递置第一集水盘内的水上，将水加热后，由输送机构输送至出口，以经过出口流至蒸发器上，通过热水与蒸发器直接接触进行热交换，实现蒸发器的化霜，耗能较小，且水的热传递效率相对较高，能够缩短化霜时间，并能够避免局部过热导致部件出现热损伤的问题发生。即本申请通过第一集水盘内的水对冷凝器散热时的废热进行回收，利用输送机构输送至蒸发器上进行热交换，满足蒸发器的高效、低耗的化霜需求，且通过将废热回收加热的水直接流至蒸发器进行热交换的化霜方式，能够避免蒸发器局部过热的情况发生。
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Figure CN224743918U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of refrigeration equipment technology, and in particular to a refrigerator defrosting system and a refrigerator. Background Technology
[0002] To meet user demands for a better user experience, most refrigerators currently available are frost-free. The defrosting system in existing frost-free refrigerators typically uses an electric heating element placed at the evaporator, utilizing the heat radiation from this element to assist in defrosting.
[0003] However, in this type of defrosting system, the electric heating element has a relatively high power consumption and consumes a lot of energy. Defrosting is carried out through radiation or hot air convection, resulting in low heat conversion efficiency, long defrosting time, and uneven heating. This can easily cause localized overheating of the evaporator, leading to thermal damage to the evaporator and its surrounding components, thus affecting the user experience. Utility Model Content
[0004] Therefore, it is necessary to provide a refrigerator defrosting system and refrigerator that can improve defrosting efficiency, avoid damage to the evaporator due to local overheating, and save energy.
[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0006] A refrigerator defrosting system includes a condenser and an evaporator, and the refrigerator defrosting system further includes:
[0007] The water collection tray mechanism includes a first water collection tray and a second water collection tray. The first water collection tray is located at the bottom of the condenser in the height direction of the refrigerator, and the second water collection tray is located at the bottom of the evaporator in the height direction of the refrigerator.
[0008] The conveying mechanism has an inlet and an outlet. The inlet is connected to the first water collection tray, and the outlet is located above the evaporator and faces the evaporator.
[0009] Understandably, this application, by setting up a water collection tray mechanism and a conveying mechanism, and placing the first water collection tray at the bottom of the condenser, with the inlet connected to the first water collection tray and the outlet located above and facing the evaporator, allows the condenser to transfer heat to the water in the first water collection tray during heat dissipation. The heated water is then conveyed to the outlet by the conveying mechanism, flowing through the outlet to the evaporator. Heat exchange occurs through direct contact between the hot water and the evaporator, achieving defrosting of the evaporator. This method consumes less energy, and the relatively high heat transfer efficiency of water shortens defrosting time and avoids localized overheating that could cause thermal damage to components. In other words, this application recovers waste heat from the condenser's heat dissipation using the water in the first water collection tray, and uses the conveying mechanism to transport it to the evaporator for heat exchange, meeting the evaporator's high-efficiency, low-energy defrosting requirements. Furthermore, by directly conveying the heated water to the evaporator for heat exchange, this defrosting method avoids localized overheating of the evaporator.
[0010] In one embodiment, the conveying mechanism includes a first conveying pipe and a water pump, the first conveying pipe having the inlet and the outlet, and the water pump being connected to the first conveying pipe.
[0011] Understandably, the water pump can provide the power to transport water through the first delivery pipe, enabling the water in the first and second collection trays to flow together.
[0012] In one embodiment, the first delivery pipe includes a first pipe body and a second pipe body communicating with the first pipe body, the inlet is located in the first pipe body, and the second pipe body is arranged along the length direction of the evaporator and has a plurality of outlets spaced apart.
[0013] It is understandable that by setting up the first and second pipes, the conveying direction of the first conveying pipe can be changed so that the water in the first water collection pan can be conveyed to the evaporator. This enables the water heated by the waste heat recovered from the condenser to assist in defrosting the evaporator, saving the energy required for defrosting the evaporator.
[0014] In one embodiment, the plurality of outlets are evenly arranged along the length of the second tube.
[0015] In one embodiment, the plurality of outlets cover a length L1 along the longitudinal direction of the evaporator, and the length of the evaporator along its longitudinal direction is L;
[0016] Where L≤L1.
[0017] Understandably, this setup ensures that the water flowing from the outlet to the evaporator can cover the evaporator, thereby improving the uniformity of defrosting at various locations on the evaporator and further enhancing the defrosting efficiency of the evaporator.
[0018] In one embodiment, the first water collection tray has a water storage layer and an overflow layer in the height direction of the refrigerator, the water storage layer being located below the overflow layer and communicating with the overflow layer.
[0019] The condenser is placed in the overflow layer, and one end of the first delivery pipe extends into the water storage layer.
[0020] Understandably, some of the water overflowing from the upper layer can be heated by the condenser and then flow to the storage layer for storage. This not only allows the water in the storage layer to be kept warm by the upper overflow layer, reducing the rate of temperature drop after the water is heated by the condenser, but also facilitates its delivery to the second water collection tray to heat and defrost the evaporator. Furthermore, the capacity of the first water collection tray with the double-layer structure is relatively large, which increases its water storage capacity, prevents excessive defrosting water from overflowing, and improves the user experience.
[0021] In one embodiment, the first water collection tray includes a first body and a partition. The first body has an upward-opening water storage tank in the height direction of the refrigerator. The partition is disposed in the water storage tank and divides the water storage tank in the height direction of the refrigerator to form the water storage layer and the overflow layer.
[0022] In one embodiment, the partition has an overflow hole, and one end of the first delivery pipe extends into the water storage layer through the overflow hole.
[0023] Understandably, the overflow hole connects the overflow layer and the water storage layer, allowing the water in the overflow layer to be heated by the condenser's heat dissipation and then flow to the water storage layer for insulation, in preparation for defrosting the evaporator.
[0024] In one embodiment, the conveying mechanism further includes a second conveying pipe, which is arranged along the height direction of the refrigerator, and the overflow layer is connected to the second water collection tray through the second conveying pipe.
[0025] Understandably, the second delivery pipe can transport the defrosting water from the evaporator and the water at a relatively low temperature after heat exchange with the evaporator back to the first water collection pan, where it can exchange heat with the condenser. This not only improves the heat dissipation efficiency of the condenser and saves overall energy consumption, but also allows for reheating through the condenser's heat dissipation to assist in defrosting the evaporator again.
[0026] This application also provides the following technical solutions:
[0027] A refrigerator includes a cabinet, a condenser, an evaporator, and a refrigerator defrosting system as described in any of the above embodiments. The condenser and the evaporator are both located in the cabinet, and the evaporator is located above the condenser in the height direction of the refrigerator.
[0028] Compared with existing technologies, the refrigerator defrosting system and refrigerator described herein utilize a water collection tray mechanism and a conveying mechanism. The first water collection tray is positioned at the bottom of the condenser, with the inlet connected to it and the outlet located above and facing the evaporator. This allows the condenser to transfer heat to the water in the first water collection tray during heat dissipation. The heated water is then conveyed to the outlet and flows onto the evaporator, where direct contact with the hot water facilitates heat exchange, thus defrosting the evaporator. This method consumes less energy, has relatively high water heat transfer efficiency, shortens defrosting time, and avoids localized overheating that could damage components. In other words, this application recovers waste heat from the condenser's heat dissipation using water in the first water collection tray and conveys it to the evaporator for heat exchange, meeting the evaporator's high-efficiency, low-energy defrosting requirements. Furthermore, by directly heating the recovered waste heat water to the evaporator for heat exchange, this defrosting method prevents localized overheating of the evaporator. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a structural diagram of the refrigerator provided in this application.
[0031] Figure 2 This is a schematic diagram of the rear structure of the refrigerator provided in this application after omitting the compressor compartment cover.
[0032] Figure 3 Provided for this application Figure 2 A magnified structural diagram of a section at point AA.
[0033] Figure 4 A simplified structural diagram of the second tube and evaporator provided in this application.
[0034] Figure 5 A schematic diagram of the structure of the second tube provided in this application.
[0035] Figure 6 Provided for this application Figure 2 A magnified structural diagram of a partial cross-section at point BB.
[0036] Figure 7 This is a partially enlarged structural diagram of the refrigerator provided in this application.
[0037] 100. Refrigerator defrosting system; 10. Condenser; 20. Evaporator; 30. Water collection tray mechanism; 31. First water collection tray; 311. Water storage layer; 312. Overflow layer; 313. First main body; 3131. Water storage tank; 3132. Opening; 314. Partition; 3141. Overflow hole; 32. Second water collection tray; 40. Conveying mechanism; 41. First conveying pipe; 411. First pipe body; 412. Second pipe body; 42. Water pump; 43. Inlet; 44. Outlet; 45. Second conveying pipe; 200. Refrigerator; 201. Compressor compartment cover. Detailed Implementation
[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0043] Please see Figures 1 to 7 This application provides a refrigerator defrosting system 100, including a condenser 10 and an evaporator 20, which is mainly used to improve the defrosting efficiency of the evaporator 20, reduce defrosting energy consumption, and avoid local overheating and thermal damage to the evaporator 20 during defrosting.
[0044] Specifically, the refrigerator defrosting system 100 also includes a water collection tray mechanism 30 and a conveying mechanism 40. The water collection tray mechanism 30 includes a first water collection tray 31 and a second water collection tray 32. The first water collection tray 31 is located at the bottom of the condenser 10 in the height direction z of the refrigerator, and the second water collection tray 32 is located at the bottom of the evaporator 20 in the height direction z of the refrigerator. The conveying mechanism 40 has an inlet 43 and an outlet 44. The inlet 43 is connected to the first water collection tray 31, and the outlet 44 is located above the evaporator 20 and is positioned towards the evaporator 20.
[0045] It is understood that this application sets up a water collection tray mechanism 30 and a conveying mechanism 40, and places the first water collection tray 31 at the bottom of the condenser 10, so that the inlet 43 is connected to the first water collection tray 31 and the outlet 44 is located above the evaporator 20 and facing the evaporator 20. In this way, when the condenser 10 dissipates heat, it can transfer heat to the water in the first water collection tray 31. After the water is heated, it is conveyed to the outlet 44 by the conveying mechanism 40, and then flows to the evaporator 20 through the outlet 44. Heat exchange is carried out through direct contact between the hot water and the evaporator 20, so as to achieve defrosting of the evaporator 20. The energy consumption is small, and the heat transfer efficiency of water is relatively high, which can shorten the defrosting time and avoid the problem of local overheating causing thermal damage to components. In other words, this application recovers the waste heat from the condenser 10 by using water in the first water collection pan 31, and then uses the conveying mechanism 40 to transport the water to the evaporator 20 for heat exchange, thus meeting the high-efficiency and low-consumption defrosting requirements of the evaporator 20. Furthermore, by directly sending the water heated by the waste heat recovery to the evaporator 20 for heat exchange, the defrosting method can avoid the occurrence of local overheating of the evaporator 20.
[0046] like Figure 2 and Figure 3As shown, in the height direction z of the refrigerator, the first water collection tray 31 forms a water storage layer 311 and an overflow layer 312. The water storage layer 311 is located below the overflow layer 312 and is connected to the overflow layer 312. The condenser 10 is placed in the overflow layer 312, and one end of the delivery pipe extends into the water storage layer 311. With this configuration, some of the water in the overflow layer 312 can flow to the water storage layer 311 for heat preservation after being heated by the condenser 10. This not only allows the water in the water storage layer 311 to be kept warm by the upper overflow layer 312, reducing the rate of temperature drop of the water after being heated by the condenser 10, thus facilitating the defrosting of the evaporator 20, but also provides a relatively large capacity for the first water collection tray 31 with a double-layer structure, increasing its water storage capacity, preventing excessive defrosting water from overflowing, and improving the user experience.
[0047] Specifically, the first water collection tray 31 includes a first main body 313 and a partition 314. The first main body 313 has a water storage tank 3131 with an opening 3132 facing upward in the height direction z of the refrigerator. The partition 314 is disposed in the water storage tank 3131 and divides the water storage tank 3131 in the height direction z of the refrigerator to form a water storage layer 311 and an overflow layer 312.
[0048] In one embodiment, the partition 314 is a polyurethane foam board. It is understood that the polyurethane foam board has the function of heat insulation and can keep the water in the water storage layer 311 warm, so that the evaporator 20 can use the water in the water storage layer 311 for defrosting.
[0049] Furthermore, the partition 314 can also be configured as a composite board consisting of a waterproof board and insulation material, a foam glass board, or an extruded polystyrene board, etc., which have both waterproof and insulation properties. Of course, it is not limited to this; the specific partition 314 used can be determined according to the actual situation.
[0050] Furthermore, the partition 314 has an overflow hole 3141, and one end of the conveying mechanism 40 extends into the water storage layer 311 through the overflow hole 3141. It can be understood that the overflow hole 3141 enables the overflow layer 312 and the water storage layer 311 to be connected, so that the water in the overflow layer 312 is heated by the heat dissipation temperature of the condenser 10 and flows to the water storage layer 311 for heat preservation, in preparation for defrosting the evaporator 20.
[0051] Here, the diameter of the overflow hole 3141 is larger than the diameter of the delivery pipe. This arrangement allows the overflow layer 312 and the water storage layer 311 to be connected.
[0052] Please continue to refer to this. Figures 2 to 7The conveying mechanism 40 includes a first conveying pipe 41 and a water pump 42. The first conveying pipe 41 has an inlet 43 and an outlet 44, and the water pump 42 is connected to the first conveying pipe 41. It can be understood that the water pump 42 can provide conveying power to the first conveying pipe 41, so that water can flow between the first water collection tray 31 and the second water collection tray 32.
[0053] Furthermore, the first conveying pipe 41 includes a first pipe body 411 and a second pipe body 412 communicating with the first pipe body 411. An inlet 43 is located in the first pipe body 411, and the second pipe body 412 is arranged along the length x of the evaporator and has multiple spaced outlets 44. In this way, by setting the first pipe body 411 and the second pipe body 412, the conveying direction of the first conveying pipe 41 can be changed so that water in the first water collection tray 31 can be conveyed to the evaporator 20. This enables the water heated by the waste heat recovered on the condenser 10 to assist in defrosting the evaporator 20, saving the energy required for defrosting the evaporator 20.
[0054] Here, multiple outlets 44 are evenly arranged along the length of the second tube 412.
[0055] In one embodiment, the second tube 412 is equipped with rotating members (not shown) on both sides of the evaporator along the longitudinal direction x. These rotating members allow the second tube 412 to rotate about its axis. This increases the coverage area of the water used for defrosting the evaporator 20, thereby further improving the defrosting efficiency of the evaporator 20.
[0056] Here, the rotating component can be a structure such as a rotary motor, and the rotation angle of the second tube 412 can be controlled by a controller.
[0057] In one embodiment, the outlet 44 is arranged in a gradually widening shape, with the diameter of the outlet 44 gradually increasing from a position further away from the evaporator 20 to a position closer to the evaporator 20. In this way, the coverage area of the water used for defrosting the evaporator 20 can be increased, thereby improving the uniform defrosting efficiency of the evaporator 20.
[0058] In another embodiment, a nozzle is installed at outlet 44, which is positioned towards the evaporator 20 and can radially spray water from the first water collection tray 31 onto the evaporator 20. This increases the coverage area of the evaporator 20 with water used for defrosting, further improving the uniform defrosting efficiency of the evaporator 20.
[0059] like Figure 4As shown, the coverage length of multiple outlets 44 in the longitudinal direction x of the evaporator is L1, and the length of the evaporator 20 in its longitudinal direction is L; where L≤L1. This arrangement ensures that the water flowing from the outlets 44 to the evaporator 20 can cover the evaporator 20, thereby improving the defrosting uniformity at various locations on the evaporator 20 and further enhancing the defrosting efficiency of the evaporator 20.
[0060] like Figure 2 and Figure 6 As shown, the conveying mechanism 40 also includes a second conveying pipe 45, which is arranged along the height direction z of the refrigerator, and the overflow layer 312 and the second water collection tray 32 are connected through the second conveying pipe 45. Thus, the second conveying pipe 45 can transport the defrosting water from the evaporator 20 and the water at a relatively low temperature after heat exchange with the evaporator 20 back to the first water collection tray 31, where it can exchange heat with the condenser 10. This not only improves the heat dissipation efficiency of the condenser 10 and saves overall energy consumption, but also allows for reheating through the heat dissipation of the condenser 10 to assist in defrosting the evaporator 20 again.
[0061] like Figure 5 and Figure 6 As shown, the second water collection tray 32 has a "V" or "U" shaped cross-section perpendicular to the length x of the evaporator, and one end of the second conveying pipe 45 is located at the bottom of the second water collection tray 32 in the height z direction of the refrigerator. In this way, the defrost water collected by the evaporator 20 in the second water collection tray 32 can be gathered at its bottom, allowing the water in the second water collection tray 32 to smoothly enter the first water collection tray 31 through the second conveying pipe 45 for reuse, further saving energy.
[0062] Here, the width of the opening 3132 of the second water collection tray 32 in the cross-section perpendicular to the length direction x of the evaporator is greater than the width of the evaporator 20. In this way, the second water collection tray 32 can smoothly collect the water left by the evaporator 20.
[0063] Please continue to refer to this. Figure 1 This application also provides the following technical solutions:
[0064] A refrigerator 200 includes a cabinet, a condenser 10, an evaporator 20, and a refrigerator defrosting system 100 as described in any of the above embodiments. The condenser 10 and the evaporator 20 are both disposed in the cabinet, and in the height direction z of the refrigerator, the evaporator 20 is located above the condenser 10.
[0065] It should be explained that, in this embodiment, the condenser 10 is located in the compressor compartment box, which is composed of the compressor compartment cover plate 201 and the refrigerator 200 box body, and the evaporator 20 is located in the refrigerator 200 box body. Both the condenser 10 and the evaporator 20 are components in the existing refrigerator 200 refrigeration system. Through the refrigerator defrosting system 100 of this application, the system can be recycled, and it will not occupy too much space in the refrigerator 200, and the modification cost is low.
[0066] The aforementioned conveying mechanism 40 can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the water pump 42 to perform corresponding operations, thereby realizing intelligent control of the refrigerator defrosting system 100 and improving the user experience.
[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.
Claims
1. A defrosting system for a refrigerator comprising a condenser and an evaporator, characterized in that, The refrigerator defrosting system also includes: The water collection tray mechanism includes a first water collection tray and a second water collection tray. The first water collection tray is located at the bottom of the condenser in the height direction of the refrigerator, and the second water collection tray is located at the bottom of the evaporator in the height direction of the refrigerator. The conveying mechanism has an inlet and an outlet. The inlet is connected to the first water collection tray, and the outlet is located above the evaporator and faces the evaporator.
2. The defrosting system of claim 1, wherein, The conveying mechanism includes a first conveying pipe and a water pump. The first conveying pipe has the inlet and the outlet, and the water pump is connected to the first conveying pipe.
3. The refrigerator defrosting system of claim 2, wherein, The first conveying pipe includes a first pipe body and a second pipe body communicating with the first pipe body. The inlet is located in the first pipe body, and the second pipe body is arranged along the length direction of the evaporator and has a plurality of outlets arranged at intervals.
4. The refrigerator defrosting system of claim 3, wherein, The multiple outlets are evenly arranged along the length of the second pipe.
5. The refrigerator defrosting system of claim 3, wherein, The coverage length of the plurality of outlets in the longitudinal direction of the evaporator is L1, and the length of the evaporator in the longitudinal direction is L; Where L≤L1.
6. The refrigerator defrosting system of claim 2, wherein, Along the height of the refrigerator, the first water collection tray has a water storage layer and an overflow layer, the water storage layer being located below the overflow layer and communicating with the overflow layer; The condenser is placed in the overflow layer, and one end of the first delivery pipe extends into the water storage layer.
7. The refrigerator defrosting system of claim 6, wherein The first water collection tray includes a first main body and a partition. The first main body has an upward-opening water storage tank in the height direction of the refrigerator. The partition is disposed in the water storage tank and divides the water storage tank in the height direction of the refrigerator to form the water storage layer and the overflow layer.
8. The refrigerator defrosting system of claim 7, wherein, The partition has an overflow hole, and one end of the first delivery pipe extends into the water storage layer through the overflow hole.
9. The refrigerator defrosting system of claim 7, wherein, The conveying mechanism further includes a second conveying pipe, which is arranged along the height of the refrigerator, and the overflow layer is connected to the second water collection tray through the second conveying pipe.
10. A refrigerator characterized by comprising: The refrigerator includes a cabinet, a condenser, an evaporator, and a refrigerator defrosting system as described in any one of claims 1 to 9. The condenser and the evaporator are both located in the cabinet, and the evaporator is located above the condenser in the height direction of the refrigerator.