Evaporator and refrigeration equipment
By setting a guide section on the fins, the defrost water is guided to one side of the fins and then to the water collection tank, which solves the problem of abnormal noise from the defrost water dripping during the defrosting process of the air-cooled refrigerator and improves the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-14
AI Technical Summary
During the defrosting process of a frost-free refrigerator, defrosting water droplets falling onto the heater can cause unusual noises, affecting the user experience.
A guide section is provided on the fin to guide the defrosting water to one side of the fin and direct it into the water receiving tank, thus preventing the defrosting water from dripping onto the heater.
This effectively prevents defrosting water droplets from falling onto the heater and causing abnormal noise, thus improving the user experience.
Smart Images
Figure CN224121438U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical manufacturing technology, and in particular to an evaporator and refrigeration equipment. Background Technology
[0002] Air-cooled refrigerators are becoming increasingly popular with consumers because they have a defrosting heater installed at the bottom of the finned evaporator, which enables automatic defrosting and saves users from having to defrost manually.
[0003] When a frost-free refrigerator requests defrost, the refrigerator stops cooling, and the defrost heater starts operating. After running for a period of time, the surface temperature of the heater rises to about 300°C and remains there until the defrost sensor reaches its exit temperature, at which point heating stops. The defrost heater typically runs for about 30 minutes. During the operation of the defrost heater, the surface temperature of the evaporator rises, and the frost or ice on the evaporator surface gradually melts into water droplets, which drip along the evaporator fins onto the very hot surface of the defrost heater. The water droplets quickly vaporize upon contact with the heater surface, immediately producing a hissing sound. This sound continues until defrosting is complete. Especially when defrosting occurs late at night, the hissing sound can cause user discomfort, resulting in a poor user experience. Utility Model Content
[0004] Based on this, embodiments of this application provide an evaporator and a refrigeration device.
[0005] In a first aspect, embodiments of this application provide an evaporator, including a coil and a plurality of fins sleeved on the coil. Each fin includes a fin body, and at least one fin further includes a flow guide. The flow guide is disposed on one side of the fin body and connected to the fin body. The flow guide is used to collect liquid on the surface of the coil and the fin body and to discharge the liquid through the outlet of the flow guide.
[0006] In some embodiments, the flow guide has a first end and a second end disposed opposite to each other, wherein, in the operating state of the evaporator, the first end is positioned higher than the second end; and / or,
[0007] The fin body has a top end and a bottom end that are arranged opposite to each other, and the flow guide has a groove inside. When the evaporator is in use, the groove is recessed in a direction away from the top end of the fin.
[0008] In some embodiments, the flow guide is generally straight, and the angle between the extension direction of the flow guide and the direction from the top to the bottom of the fin body is an acute or obtuse angle; and / or,
[0009] The fin body has a first side and a second side disposed opposite to each other, wherein the second end of the flow guide is disposed close to the second side and maintains a distance from the second side; and / or,
[0010] On a cross-section perpendicular to the extension direction of the guide portion, the inner wall of the groove is arc-shaped.
[0011] In some embodiments, the coil includes a plurality of heat exchange tubes and a plurality of pipe fittings for connecting the plurality of heat exchange tubes together, wherein the plurality of heat exchange tubes extend in a first direction and are arranged at intervals in a second direction, and the plurality of fins are arranged at intervals in the first direction.
[0012] In some embodiments, the evaporator includes a first fixing plate and a second fixing plate disposed opposite to each other, both the first fixing plate and the second fixing plate being sleeved on the coil, and a plurality of the fins being disposed between the first fixing plate and the second fixing plate.
[0013] Secondly, embodiments of this application provide a refrigeration device, including the evaporator described above.
[0014] In some embodiments, the refrigeration equipment further includes a heater, which is disposed below the coils and fins of the evaporator when the evaporator is in use; and / or,
[0015] The evaporator further includes a first fixing plate and a second fixing plate disposed opposite to each other. The first fixing plate and the second fixing plate are both sleeved on the coil, and a plurality of the fins are disposed between the first fixing plate and the second fixing plate.
[0016] In some embodiments, at least one of the first fixing plate and the second fixing plate extends to a region corresponding to the heater, the heater including a heating tube, the heating tube passing through the first fixing plate and / or the second fixing plate to fix the heating tube.
[0017] In some embodiments, the refrigeration equipment further includes a housing and an air duct plate. The housing includes a back panel. The evaporator, the heater, and the air duct plate are all disposed inside the housing. Furthermore, the evaporator and the heater are both disposed between the back panel and the air duct plate.
[0018] In some embodiments, the refrigeration equipment further includes a fan disposed between the back plate and the duct plate, and, in the operating state of the evaporator, the fan is disposed above the evaporator.
[0019] The evaporator provided in this application embodiment, by providing a guide section on the fins, can guide the defrost water on the surface of the evaporator to one side of the fins and guide it to the water receiving tank, which can avoid the situation where defrost water drips onto the heater and causes a "hissing" noise, thereby improving the user experience. Attached Figure Description
[0020] 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.
[0021] Figure 1 This is a three-dimensional structural diagram of the evaporator provided in an embodiment of this application.
[0022] Figure 2 This is a three-dimensional structural diagram of the fins provided in an embodiment of this application.
[0023] Figure 3 for Figure 2 Enlarged schematic diagram of region A in the middle.
[0024] Figure 4 This is a schematic diagram of the structure of the coil provided in an embodiment of this application.
[0025] Figure 5 This is a first-view perspective three-dimensional structural diagram of the refrigeration device provided in an embodiment of this application.
[0026] Figure 6 This is a second-view perspective three-dimensional structural diagram of the refrigeration device provided in an embodiment of this application.
[0027] Figure 7 This is a partial structural schematic diagram of the refrigeration equipment provided in an embodiment of this application.
[0028] Component symbol explanation:
[0029] 100. Evaporator; 20. Coil; 21. Heat exchange tube; 22. Pipe joint; X, first direction; Y, second direction; 30. Fin; 31. Fin body; 313. First side; 314. Second side; 311. Top; 312. Bottom; 32. Guide section; 321. First end; 322. Second end; 323. Groove; 41. First fixing plate; 42. Second fixing plate; 200. Refrigeration equipment; 50. Heater; 51. Heating tube; 60. Housing; 61. Back plate; 62. Top plate; 63. First side plate; 64. Second side plate; 65. Air duct plate; 70. Fan. Detailed Implementation
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] Please see Figure 1 , Figure 2 and Figure 3 This application provides an evaporator 100, including a coil 20 and a plurality of fins 30 sleeved on the coil 20. Each fin 30 includes a fin body 31, and at least one fin 30 also includes a flow guide 32. The flow guide 32 is disposed on one side of the fin body 31 and connected to the fin body 31. The flow guide 32 is used to collect liquid (e.g., defrosting water) on the surface of the coil 20 and the fin body 31 and to discharge the liquid through the outlet of the flow guide 32.
[0036] The evaporator 100 provided in this application embodiment, by providing a guide portion 32 on the fins 30, can guide the defrosting water on the surface of the evaporator 100 to one side of the fins 30 and guide it to the water receiving tank, which can avoid the situation where defrosting water drips onto the heater 50 and causes a "hissing" noise, thereby improving the user experience.
[0037] Please see Figure 2 and Figure 3 The flow guide 32 has a first end 321 and a second end 322 that are disposed opposite to each other. In the working state of the evaporator 100, the position of the first end 321 is higher than the position of the second end 322.
[0038] It is understandable that the first end 321 is the top of the guide section 32, and the second end 322 is the bottom end and outlet of the guide section 32. By setting the position of the first end 321 of the guide section 32 to be higher than the position of the second end 322, that is, making the guide section 32 as a whole inclined, the defrosting water on the surface of the evaporator 100 can flow from the high position to the low position under the action of gravity, thereby accelerating the discharge of defrosting water on the guide section 32.
[0039] Please see Figure 2 and Figure 3 The flow guide 32 is generally straight, and the angle between the extension direction of the flow guide 32 and the direction from the top end 311 to the bottom end 312 of the fin body 31 is an acute angle or an obtuse angle.
[0040] Please see Figure 2 and Figure 3 The fin body 31 has a top end 311 and a bottom end 312 that are disposed opposite to each other. The flow guide 32 has a groove 323 inside. In the working state of the evaporator 100, the groove 323 is recessed in a direction away from the top end 311 of the fin 30.
[0041] It is understandable that by providing a groove 323 in the guide section 32 and making the groove 323 recessed in the direction away from the top 311 of the fin 30, the guide section 32 has a certain capacity. When there is a lot of defrost water on the surface of the evaporator 100 and the drainage capacity of the guide section 32 is limited, the guide section 32 can accommodate some of the defrost water that has not been drained temporarily, so as to prevent the defrost water from overflowing from the side of the guide section 32 onto the heating tube 51 and causing a "hissing" noise.
[0042] Please see Figure 2 and Figure 3 The fin body 31 has a first side 313 and a second side 314 disposed opposite to each other, wherein the second end 322 of the flow guide 32 is disposed close to the second side 314 and is spaced apart from the second side 314.
[0043] It should be noted that by setting the second end 322 (bottom end) of the guide section 32 close to the second side 314 of the fin 30 and maintaining a distance between them, that is, by forming a gap between the second end 322 (bottom end) of the guide section 32 and the second side 314 of the fin 30, the purpose of setting this gap is to allow defrosting water to flow out through the gap after reaching the second end 322 (bottom end) of the guide section 32. This is because the evaporator 100 is usually sandwiched between the back plate 61 and the air duct plate 65 of the housing 60. Without setting the gap, the defrosting water may be blocked by the back plate 61 of the housing 60 after reaching the second end 322 (bottom end) of the guide section 32, and thus cannot flow down into the water receiving tank.
[0044] Please see Figure 2 and Figure 3 On a cross-section perpendicular to the extending direction of the guide portion 32, the inner wall of the groove 323 is arc-shaped.
[0045] Understandably, the inner wall of the arc-shaped groove 323 is relatively smooth, and the resistance is small when the defrost water flows in the groove 323, thus accelerating the discharge of the defrost water.
[0046] Please see Figure 4 See also Figure 1 The coil 20 includes multiple heat exchange tubes 21 and multiple pipe joints 22 for connecting the multiple heat exchange tubes 21 together. The multiple heat exchange tubes 21 extend in a first direction X, and the multiple heat exchange tubes 21 are arranged at intervals in a second direction Y. The multiple fins 30 are arranged at intervals in the first direction X.
[0047] Please see Figure 1The evaporator 100 includes a first fixing plate 41 and a second fixing plate 42 disposed opposite to each other. The first fixing plate 41 and the second fixing plate 42 are both sleeved on the coil 20, and a plurality of the fins 30 are disposed between the first fixing plate 41 and the second fixing plate 42.
[0048] Please see Figure 5 , Figure 6 and Figure 7 This application also provides a refrigeration device 200, including the evaporator 100 in any of the above embodiments.
[0049] For example, the refrigeration equipment 200 can be a refrigerator, freezer, cold drink machine, refrigerated wine cabinet, freezer box, ice cream machine, ice maker, etc.
[0050] Please see Figure 7 The refrigeration equipment 200 also includes a heater 50, which is located below the coil 20 and fins 30 of the evaporator 100 when the evaporator 100 is in use.
[0051] Understandably, when frost forms on the surface of the evaporator 100, the frost can be melted into defrost water by heating with the heater 50, thus ensuring the stable cooling effect of the refrigeration equipment 200.
[0052] Please see Figure 7 The evaporator 100 further includes a first fixing plate 41 and a second fixing plate 42 disposed opposite to each other. The first fixing plate 41 and the second fixing plate 42 are both sleeved on the coil 20, and a plurality of the fins 30 are disposed between the first fixing plate 41 and the second fixing plate 42.
[0053] Please see Figure 7 At least one of the first fixing plate 41 and the second fixing plate 42 extends to the area corresponding to the heater 50, the heater 50 including a heating tube 51, the heating tube 51 passing through the first fixing plate 41 and / or the second fixing plate 42 to fix the heating tube 51.
[0054] Please see Figure 5 , Figure 6 and Figure 7 The refrigeration equipment 200 also includes a housing 60 and an air duct plate 65. The housing 60 includes a back plate 61. The evaporator 100, the heater 50 and the air duct plate 65 are all disposed inside the housing 60. Furthermore, the evaporator 100 and the heater 50 are both disposed between the back plate 61 and the air duct plate 65.
[0055] For example, the air duct plate 65 is provided with an air outlet for supplying low-temperature gas to the storage compartment (refrigeration compartment and / or freezer compartment) of the refrigeration equipment 200 (e.g., a refrigerator).
[0056] Please see Figure 5 and Figure 6 The housing 60 also includes a top plate 62, a first side plate 63, and a second side plate 64. The first side plate 63 and the second side plate 64 are respectively disposed on both sides of the back plate 61 and are both connected to the back plate 61. The first side plate 63, the second side plate 64, and the back plate 61 are all connected to the top plate 62.
[0057] Please see Figure 7 The refrigeration equipment 200 also includes a fan 70, which is disposed between the back plate 61 and the air duct plate 65, and when the evaporator 100 is in use, the fan 70 is disposed above the evaporator 100.
[0058] Understandably, by sandwiching the evaporator 100 and heater 50 between the back plate 61 and the air duct plate 65, that is, by forming an independent evaporator chamber between the back plate 61 and the air duct plate 65, the airflow in the air circulation system of the refrigeration equipment 200 enters the evaporator chamber and exchanges heat with the evaporator 100, thereby reducing the temperature of the airflow. The low-temperature airflow is then drawn to the storage chamber (refrigeration chamber and / or freezer chamber) by the fan 70 to cool the storage chamber.
[0059] Since the second end 322 (bottom end) of the guide section 32 of the evaporator 100 is close to the second side 314 of the fin 30 and maintains a distance, that is, a notch is formed between the second end 322 (bottom end) of the guide section 32 and the second side 314 of the fin 30, the defrosting water of the evaporator 100 can be discharged in time through the notch when it reaches the second end 322 (bottom end) of the guide section 32, thereby avoiding the situation where the defrosting water is blocked by the back plate 61 of the housing 60 and accumulates at the second end 322 (bottom end) of the guide section 32.
[0060] For example, the refrigeration device 200 also includes a water tray (not shown) disposed below the heater 50, and the water tray is disposed corresponding to the outlet of the guide section 32 so that liquid (e.g. defrosting water) discharged from the guide section 32 can enter the water tray.
[0061] The evaporator and refrigeration equipment provided in the embodiments of this application have 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. An evaporator, characterized in that, The device includes a coil and multiple fins sleeved on the coil. Each fin includes a fin body, and at least one fin also includes a flow guide. The flow guide is disposed on one side of the fin body and connected to the fin body. The flow guide is used to collect liquid on the surface of the coil and the fin body and to discharge the liquid through the outlet of the flow guide.
2. The evaporator according to claim 1, characterized in that, The flow guide has a first end and a second end disposed opposite to each other. In the operating state of the evaporator, the first end is positioned higher than the second end; and / or... The fin body has a top end and a bottom end that are arranged opposite to each other, and the flow guide has a groove inside. When the evaporator is in use, the groove is recessed in a direction away from the top end of the fin.
3. The evaporator according to claim 2, characterized in that, The flow guide is generally straight, and the angle between the extension direction of the flow guide and the direction from the top to the bottom of the fin body is an acute or obtuse angle; and / or, The fin body has a first side and a second side disposed opposite to each other, wherein the second end of the flow guide is disposed close to the second side and maintains a distance from the second side; and / or, On a cross-section perpendicular to the extension direction of the guide portion, the inner wall of the groove is arc-shaped.
4. The evaporator according to any one of claims 1-3, characterized in that, The coil includes multiple heat exchange tubes and multiple pipe joints for connecting the multiple heat exchange tubes together. The multiple heat exchange tubes extend in a first direction and are arranged at intervals in a second direction. The multiple fins are arranged at intervals in the first direction.
5. The evaporator according to any one of claims 1-3, characterized in that, The evaporator includes a first fixing plate and a second fixing plate disposed opposite to each other. Both the first fixing plate and the second fixing plate are sleeved on the coil, and a plurality of the fins are disposed between the first fixing plate and the second fixing plate.
6. A refrigeration device, characterized in that, Includes the evaporator as described in claim 1.
7. The refrigeration equipment according to claim 6, characterized in that, The refrigeration equipment further includes a heater, which, in the operating state of the evaporator, is positioned below the coils and fins of the evaporator; and / or, The evaporator further includes a first fixing plate and a second fixing plate disposed opposite to each other. The first fixing plate and the second fixing plate are both sleeved on the coil, and a plurality of the fins are disposed between the first fixing plate and the second fixing plate.
8. The refrigeration equipment according to claim 7, characterized in that, At least one of the first fixing plate and the second fixing plate extends to a region corresponding to the heater, the heater including a heating tube, the heating tube passing through the first fixing plate and / or the second fixing plate to fix the heating tube.
9. The refrigeration equipment according to claim 7, characterized in that, The refrigeration equipment also includes a housing and an air duct plate. The housing includes a back panel. The evaporator, the heater, and the air duct plate are all disposed inside the housing. Furthermore, the evaporator and the heater are both disposed between the back panel and the air duct plate.
10. The refrigeration equipment according to claim 9, characterized in that, The refrigeration equipment also includes a fan, which is disposed between the back plate and the air duct plate, and, in the operating state of the evaporator, the fan is disposed above the evaporator.