Refrigeration device
By setting a drain pipe condenser in the drain pipe to connect to the compressor output end and using high-temperature and high-pressure refrigerant to heat the defrost water, the problem of drain pipe freezing is solved, and the refrigeration effect is improved with reduced costs and energy consumption.
Patent Information
- Application Number
- CN202422695369.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-04
AI Technical Summary
In air-cooled refrigerators, the low temperature around the evaporator causes the drain pipe to easily freeze, resulting in poor drainage. The existing technology uses a heating wire to heat the outer surface of the drain pipe to prevent freezing, but this is costly and increases energy consumption.
A drain pipe condenser is set in the drain pipe and connected to the compressor output end, so that high-temperature and high-pressure refrigerant enters the drain pipe condenser, and the defrost water temperature is increased through heat transfer to avoid the drain pipe from freezing, and the cooling capacity is increased by reducing the internal temperature of the drain pipe condenser.
No heating wire is required, which reduces production costs and energy consumption, while improving cooling effects, preventing drain pipes from freezing, and improving cooling efficiency.
Smart Images
Figure CN223484638U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of refrigeration technology, and in particular to a refrigeration device. Background Technology
[0002] With the improvement of people's living standards, refrigerators have become an indispensable appliance in modern family life. Refrigerators are mainly divided into direct cooling refrigerators, air-cooled refrigerators, hybrid refrigerators, and inverter refrigerators. Among them, the principle of air-cooled refrigerators is to use air for cooling. When high-temperature air flows through the built-in evaporator, due to the high air temperature and the low evaporator temperature, the two directly exchange heat, and the air temperature will drop. Cold air is blown into the refrigerator, and the refrigerator temperature is lowered through this continuous circulation.
[0003] After a period of use, frost will form on the surface of the evaporator of a refrigerator. When the frost layer accumulates to a thick thickness, it will affect the heat transfer rate. Therefore, the frost layer needs to be removed. To solve this problem, a defrost heater is usually installed below the evaporator. When defrosting is needed, the defrost heater is used to heat the evaporator to melt the frost attached to the surface of the evaporator. The defrost water is discharged through the drain pipe. However, since the temperature around the evaporator is usually low, ice can easily form inside the drain pipe, which will cause the drain pipe to drain poorly. Utility Model Content
[0004] Based on this, this application provides a refrigeration device.
[0005] This application provides a refrigeration device, including a compressor, a condenser, a throttling device, and an evaporator connected in sequence;
[0006] The refrigeration device further includes a first water receiving tray, a drain pipe, and a drain pipe condenser. The first water receiving tray is located below the evaporator and has a drain outlet. The drain pipe is connected to the drain outlet. At least a portion of the drain pipe condenser is located in the drain pipe. The input end of the drain pipe condenser is connected to the output end of the compressor, and the output end of the drain pipe condenser is connected to the input end of the condenser.
[0007] In some embodiments, the refrigeration device further includes an exhaust connection pipe, the input end of which is connected to the output end of the compressor, and the output end of which is connected to the input end of the drain pipe condenser.
[0008] In some embodiments, the refrigeration device further includes a housing, the housing including a bottom plate, the bottom plate being provided with the compressor and a second water receiving tray, the second water receiving tray being disposed below the drain pipe.
[0009] In some embodiments, at least a portion of the exhaust connection pipe is located within the second water receiving tray.
[0010] In some embodiments, the drain pipe condensate pipe includes a first pipe section, a connecting portion, and a second pipe section connected in sequence. The first pipe section, the second pipe section, and the connecting portion are all located inside the drain pipe. The connecting portion is located at one end of the drain pipe near the first water receiving tray. The ends of the first pipe section and the second pipe section that are opposite to the connecting portion are both located at one end of the drain pipe near the second water receiving tray.
[0011] In some embodiments, the connecting portion is bent or arc-shaped; and / or,
[0012] The first pipe section, the second pipe section, and the drain pipe extend in the same direction.
[0013] In some embodiments, the refrigeration device further includes a throttling device, the input of which is connected to the output of the condenser, and the output of which is connected to the input of the evaporator.
[0014] In some embodiments, the throttling device is a capillary tube, a thermostatic expansion valve, an electronic expansion valve, or a float throttling valve.
[0015] In some embodiments, the refrigeration device further includes a filter, the input of which is connected to the output of the condenser, and the output of which is connected to the input of the throttling device.
[0016] In some embodiments, the drain pipe / condensate pipe is a galvanized steel pipe or a copper pipe; and / or,
[0017] The refrigeration device is a refrigerator, freezer, beverage cooler, wine cooler, freezer box, ice cream machine, or ice maker.
[0018] The refrigeration device provided in this application embodiment has a drain pipe condenser installed inside the drain pipe. Since the drain pipe condenser is connected to the output end of the compressor, the high-temperature and high-pressure refrigerant flowing out of the compressor will enter the drain pipe condenser, making the drain pipe condenser have a high temperature. Because the drain pipe condenser can transfer heat to the drain pipe and the defrosting water flowing inside it, the temperature of the drain pipe and the defrosting water flowing inside it can be increased, thus preventing ice blockage in the drain pipe. Furthermore, since the temperature of the refrigerant inside the drain pipe condenser decreases during the heat exchange process, the cooling capacity of the system can be increased, thereby improving the cooling effect of the refrigeration device. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0020] Figure 1 This is a three-dimensional structural diagram of the refrigeration device provided in the embodiments of this application.
[0021] Figure 2 for Figure 1 A magnified view of region A in the middle.
[0022] Component symbol explanation:
[0023] 100. Refrigeration unit; 21. Compressor; 22. Condenser; 23. Throttling device; 24. Evaporator; 30. First drip tray; 31. Drain outlet; 40. Drain pipe; 50. Drain pipe condenser pipe; 60. Exhaust connection pipe; 71. Base plate; 72. Second drip tray; 80. Gas return pipe. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] 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. Therefore, 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.
[0027] 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 is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply 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 that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0029] Please see Figure 1 and Figure 2 This application provides a refrigeration device 100, which includes a compressor 21, a condenser 22, a throttling device 23 and an evaporator 24 connected in sequence.
[0030] Please see Figure 1 and Figure 2 The refrigeration device 100 further includes a first water receiving tray 30, a drain pipe 40, and a drain pipe condenser 50. The first water receiving tray 30 is disposed below the evaporator 24, and the first water receiving tray 30 is provided with a drain outlet 31. The drain pipe 40 is connected to the drain outlet 31. At least a portion of the drain pipe condenser 50 is disposed in the drain pipe 40. The input end of the drain pipe condenser 50 is connected to the output end of the compressor 21, and the output end of the drain pipe condenser 50 is connected to the input end of the condenser 22.
[0031] It is understood that in the embodiments of this application, "the first water receiving tray 30 is disposed below the evaporator 24" refers to the description of the refrigeration device 100 in the use state. When the refrigeration device 100 is in the use state and the evaporator 24 is defrosted, the frost layer on the surface of the evaporator 24 melts into water under the action of heating, and the water flows into the first water receiving tray 30 under the action of gravity.
[0032] The refrigeration device 100 provided in this application embodiment has a drain pipe condenser 50 installed inside the drain pipe 40. Since the drain pipe condenser 50 is connected to the output end of the compressor 21, the high-temperature and high-pressure refrigerant flowing out of the compressor 21 will enter the drain pipe condenser 50, making the drain pipe condenser 50 have a high temperature. Since the drain pipe condenser 50 can transfer heat to the drain pipe 40 and the defrosting water flowing inside it, the temperature of the drain pipe 40 and the defrosting water flowing inside it can be increased, avoiding ice blockage in the drain pipe 40. Furthermore, since the temperature of the refrigerant inside the drain pipe condenser 50 decreases during the heat exchange process, the cooling capacity of the system can be increased, thereby improving the cooling effect of the refrigeration device 100.
[0033] Currently, some air-cooled refrigerators use heating wires wrapped around the outer surface of the drain pipe to prevent it from freezing. However, this method is costly, and the use of heating wires also increases the refrigerator's energy consumption. The refrigeration device 100 provided in this embodiment does not require heating wires to heat the drain pipe 40, which reduces the refrigerator's production cost and energy consumption.
[0034] Please see Figure 1 and Figure 2 The refrigeration device 100 also includes an exhaust connection pipe 60, the input end of which is connected to the output end of the compressor 21, and the output end of which is connected to the input end of the drain pipe condenser pipe 50.
[0035] For example, the input end of the exhaust connection pipe 60 is connected to the output end of the compressor 21 by welding.
[0036] For example, the output end of the exhaust connection pipe 60 is connected to the input end of the drain pipe condenser pipe 50 by welding.
[0037] For example, the output end of the drain pipe condenser 50 is connected to the input end of the condenser 22 by welding.
[0038] Please see Figure 1 and Figure 2 The refrigeration device 100 also includes a housing, which includes a bottom plate 71. The bottom plate 71 is provided with the compressor 21 and a second water receiving tray 72, which is located below the drain pipe 40.
[0039] It is understood that in the embodiments of this application, "the second water receiving tray 72 is disposed below the second drain pipe 40" refers to the description of the refrigeration device 100 in use. When the refrigeration device 100 is in use and the evaporator 24 is being defrosted, the water from the melting frost on the surface of the evaporator 24 flows down into the first water receiving tray 30, and then flows from the drain pipe 40 into the second water receiving tray 72 under the action of gravity.
[0040] Please see Figure 1 and Figure 2 At least a portion of the exhaust connection pipe 60 is located within the second water receiving tray 72.
[0041] Please see Figure 1 and Figure 2 The drain pipe condensate pipe 50 includes a first pipe section, a connecting part, and a second pipe section connected in sequence. The first pipe section, the second pipe section, and the connecting part are all located inside the drain pipe 40. The connecting part is located at the end of the drain pipe 40 near the first water receiving tray 30. The ends of the first pipe section and the second pipe section that are away from the connecting part are both located at the ends of the drain pipe 40 near the second water receiving tray 72.
[0042] Please see Figure 1 and Figure 2 For example, the connecting portion is bent or arc-shaped.
[0043] For example, the first pipe segment and the second pipe segment are parallel to each other, and the first pipe segment, the second pipe segment and the drain pipe 40 extend in the same direction.
[0044] It is understood that the above arrangement means that the drain pipe condenser 50 is bent in the drain pipe 40, which is equivalent to two drain pipe condenser 50s being arranged side by side in the drain pipe 40. Since the heating effect of two drain pipe condenser 50s is greater than that of one drain pipe condenser 50, the heating effect of the drain pipe condenser 50 on the drain pipe 40 and the defrosting water flowing inside it can be improved, thus avoiding ice blockage in the drain pipe 40.
[0045] For example, the drain pipe condensate 50 can be bent into more pipe segments. For instance, the drain pipe condensate 50 includes multiple pipe segments arranged in parallel, which are connected by a connecting unit. For example, the extension direction of the multiple pipe segments is the same as the extension direction of the drain pipe 40.
[0046] Please see Figure 1 and Figure 2The refrigeration device 100 further includes a throttling device 23, the input end of which is connected to the output end of the condenser 22, and the output end of which is connected to the input end of the evaporator 24.
[0047] For example, the throttling device 23 is a capillary tube, a thermostatic expansion valve, an electronic expansion valve, or a float throttling valve.
[0048] In some embodiments, the refrigeration device 100 further includes a filter (not shown), the input of which is connected to the output of the condenser 22, and the output of which is connected to the input of the throttling device 23.
[0049] For example, the drain pipe condensate pipe 50 is a galvanized steel pipe or a copper pipe.
[0050] Galvanized steel pipes are welded steel pipes with a hot-dip galvanized or electro-galvanized layer on their surface. Galvanizing increases the corrosion resistance of the steel pipe. Galvanized steel pipes have good strength and ductility, making them easy to extend without breaking under external force. This allows the condenser pipe 50 to be installed in a bent state inside the drain pipe 40. The thermal conductivity of galvanized steel pipes is as high as 116 W / mK, allowing heat to dissipate very easily, which is beneficial for heat exchange between the condenser pipe 50 and the drain pipe 40.
[0051] Copper tubes have a thermal conductivity of around 401 W / mK, offering superior thermal conductivity, but they are relatively more expensive.
[0052] For example, the drain pipe 40 and the exhaust connection pipe 60 are each made of galvanized steel pipe or copper pipe.
[0053] For example, the refrigeration device 100 may be a refrigerator, freezer, beverage cooler, wine cooler, freezer box, ice cream machine, or ice maker, etc.
[0054] For example, the refrigeration device 100 further includes a return pipe 80, the input end of which is connected to the output end of the evaporator 24, and the output end of which is connected to the input end of the compressor 21.
[0055] For example, the return pipe 80 is in direct contact with the throttling device 23, or a heat-conducting medium is provided between the return pipe 80 and the throttling device 23.
[0056] It is understandable that by setting the return pipe 80 to be in direct contact with the throttling device 23, or by providing a heat-conducting medium between the return pipe 80 and the throttling device 23, the high-temperature refrigerant in the throttling device 23 can be used to heat the low-temperature refrigerant in the return pipe 80, thereby reducing or avoiding the appearance of liquid refrigerant. This can reduce or avoid liquid slugging accidents in the compressor 21. Furthermore, since the heat of the refrigerant in the throttling device 23 is absorbed by the low-temperature refrigerant in the return pipe 80, the temperature of the refrigerant in the throttling device 23 is reduced, thereby reducing the temperature of the refrigerant entering the evaporator 24 and thus increasing the cooling rate of the refrigeration equipment.
[0057] For example, when the throttling device 23 is a capillary tube, aluminum foil can be used to wrap the throttling device 23 around the outer surface of the return pipe 80.
[0058] The refrigeration device provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A refrigeration device, characterized in that, It includes a compressor, a condenser, a throttling device, and an evaporator connected in sequence; The refrigeration device further includes a first water receiving tray, a drain pipe, and a drain pipe condenser. The first water receiving tray is located below the evaporator and has a drain outlet. The drain pipe is connected to the drain outlet. At least a portion of the drain pipe condenser is located in the drain pipe. The input end of the drain pipe condenser is connected to the output end of the compressor, and the output end of the drain pipe condenser is connected to the input end of the condenser.
2. The refrigeration device according to claim 1, characterized in that, The refrigeration device also includes an exhaust connection pipe, the input end of which is connected to the output end of the compressor, and the output end of which is connected to the input end of the drain pipe condenser.
3. The refrigeration device according to claim 1 or 2, characterized in that, The refrigeration device also includes a housing, which includes a bottom plate. The bottom plate is provided with the compressor and a second water receiving tray, which is located below the drain pipe.
4. The refrigeration device according to claim 2, characterized in that, The refrigeration device also includes a housing, which includes a bottom plate. The bottom plate is provided with the compressor and a second water receiving tray, which is located below the drain pipe. At least a portion of the exhaust connection pipe is located inside the second water receiving tray.
5. The refrigeration device according to claim 3, characterized in that, The drain pipe condensate pipe includes a first pipe section, a connecting part, and a second pipe section connected in sequence. The first pipe section, the second pipe section, and the connecting part are all located inside the drain pipe. The connecting part is located at the end of the drain pipe near the first water receiving pan. The ends of the first pipe section and the second pipe section that are away from the connecting part are both located at the ends of the drain pipe near the second water receiving pan.
6. The refrigeration device according to claim 5, characterized in that, The connecting portion is bent or arc-shaped; and / or, The first pipe section, the second pipe section, and the drain pipe extend in the same direction.
7. The refrigeration device according to claim 1, characterized in that, The refrigeration device also includes a throttling device, the input end of which is connected to the output end of the condenser, and the output end of which is connected to the input end of the evaporator.
8. The refrigeration device according to claim 7, characterized in that, The throttling device is a capillary tube, a thermostatic expansion valve, an electronic expansion valve, or a float throttling valve.
9. The refrigeration device according to claim 7, characterized in that, The refrigeration device further includes a filter, the input end of which is connected to the output end of the condenser, and the output end of which is connected to the input end of the throttling device.
10. The refrigeration device according to claim 1, characterized in that, The drain pipe / condenser is a galvanized steel pipe or a copper pipe; and / or, The refrigeration device is a refrigerator, freezer, beverage cooler, wine cooler, freezer box, ice cream machine, or ice maker.