Evaporator assembly and refrigerator

Abstract

The embodiment of the utility model provides an evaporator assembly and a refrigerator, the evaporator assembly comprises an evaporator, a heater and at least one heat conducting plate, the heater is arranged below the evaporator in the gravity direction, each heat conducting plate is arranged between two fins, and the heater and an evaporation coil pipe are arranged on the heat conducting plates in a penetrating mode. The heat conduction plate is used for transferring heat of the heater to the evaporation coil so that the defrosting efficiency of a frost layer on the surface of the freezing evaporator can be improved, the defrosting time can be shortened, and the defrosting increment in the defrosting period can be shortened. The refrigerator comprises a refrigerator body, the evaporator assembly is arranged in the refrigerator body, and through the arrangement of the evaporator assembly, the whole machine energy consumption of the refrigerator is further reduced while the freezing effect of the refrigerator is guaranteed.

Description

Technical Field

[0001] The present application belongs to the field of household appliances, and in particular to an evaporator assembly and a refrigerator. Background Art

[0002] In order to ensure efficient and stable operation of the refrigerator system, the frost layer on the evaporator in the freezer compartment of an air-cooled refrigerator must be removed in a timely manner. Traditional air-cooled refrigerators use electric heating to defrost and remove the frost layer on the evaporator. However, this electric heating defrost is inefficient for the evaporator, the heat distribution is uneven, and the defrosting is not thorough, which easily leaves dead corners. In order to completely defrost, the defrosting time is long and consumes a lot of electricity. Due to the large temperature fluctuations in the freezer compartment, long-term defrosting has a certain impact on the freshness of food, which not only wastes electricity, but is also not conducive to the freezing and preservation effect of the product, and may even cause the product to deteriorate.

[0003] Useful content

[0004] The embodiments of the present application provide an evaporator assembly and a refrigerator to solve the problem of incomplete defrosting of the frost layer of the existing evaporator.

[0005] The present application provides an evaporator assembly, which is applied to a refrigerator. The evaporator assembly includes:

[0006] The evaporator comprises a plurality of fins arranged at intervals and an evaporation coil penetrating the fins;

[0007] A heater is arranged below the evaporator along the gravity direction;

[0008] At least one heat conducting plate, each of which is arranged between two of the fins, the heater and the evaporating coil are penetrated by the heat conducting plate, and the heat conducting plate is used to transfer the heat of the heater to the evaporating coil.

[0009] Optionally, at least one of the heat conducting plates is located between the plurality of fins and is arranged parallel to the fins.

[0010] Optionally, the heat conduction plate is provided with mounting openings and mounting holes at intervals along the gravity direction, the heater comprises a bent pipeline and two straight pipelines connected to each other, two straight pipelines adjacently arranged in the horizontal direction are passed through one of the mounting openings, and the bent pipeline is passed through the mounting hole.

[0011] Optionally, the evaporating coil comprises a plurality of straight sections arranged in parallel, the heat conducting plate is provided with a plurality of coil openings arranged at intervals, and two straight sections arranged adjacent to each other in the gravity direction are passed through one of the coil openings.

[0012] Optionally, the coil opening is arranged obliquely, and the mounting opening is arranged horizontally.

[0013] Optionally, the evaporator also includes a first mounting plate and a second mounting plate respectively arranged on both sides of the evaporation coil, the first mounting plate and the second mounting plate are arranged parallel to the heat conduction plate, one end of the heater is detachably connected to the first mounting plate, and the other end is detachably connected to the second mounting plate.

[0014] Optionally, the first mounting plate is provided with two first slots at intervals, the second mounting plate is provided with two second slots at intervals, one end of each of the straight pipes is connected to one of the first slots, and the other end is connected to one of the second slots.

[0015] Optionally, the evaporator assembly further includes two fixing brackets, which are respectively connected to the first mounting plate and the second mounting plate and protrude toward a side away from the evaporator, and are used to fix the evaporator assembly to the refrigerator.

[0016] The present application also provides a refrigerator, comprising:

[0017] Box;

[0018] As mentioned above, the evaporator assembly is arranged in the box.

[0019] Optionally, the refrigerator includes a refrigerating compartment and a freezing compartment, the refrigerating compartment and the freezing compartment are connected via a refrigerating return air duct, and the refrigerator further includes a sealing member, the sealing member is arranged at the connection between the refrigerating compartment and the refrigerating return air duct, and the sealing member is used to absorb moisture in the air flowing back from the refrigerating compartment to the freezing compartment.

[0020] The embodiment of the present application provides an evaporator assembly and a refrigerator, wherein the evaporator assembly includes an evaporator, a heater and at least one heat conducting plate, wherein the heater is arranged below the evaporator along the gravity direction, each heat conducting plate is arranged between two fins, the heater and the evaporation coil are arranged through the heat conducting plate, and the heat conducting plate is used to transfer the heat of the heater to the evaporation coil, so as to improve the defrosting efficiency of the frost layer on the surface of the freezing evaporator, and reduce the defrosting time and the defrosting increment during the defrosting cycle. The refrigerator includes a box body, and the evaporator assembly is arranged in the box body. By arranging the evaporator assembly, the energy consumption of the refrigerator can be further reduced while ensuring the freezing effect of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0022] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0023] Figure 1 A schematic diagram of the structure of the evaporator assembly provided in an embodiment of the present application.

[0024] Figure 2 for Figure 1 A front view of the evaporator assembly is shown.

[0025] Figure 3 for Figure 2 A side view of the evaporator assembly is shown.

[0026] Figure 4 A front view of the heat conducting plate provided in an embodiment of the present application.

[0027] Figure 5 A front view of a first mounting plate provided in an embodiment of the present application.

[0028] Figure 6 A side view of a fixing bracket provided in an embodiment of the present application.

[0029] Figure 7 A front view of a seal provided in an embodiment of the present application.

[0030] Figure 8 A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 100. Evaporator assembly;

[0033] 10. evaporator; 11. fin; 12. evaporating coil; 121. straight section; 122. curved section;

[0034] 20. Heater; 21. Bend pipeline; 211. First straight structure; 212. Second straight structure; 22. Straight pipeline; 23. First steering tube; 24. Second steering tube;

[0035] 30. Heat conducting plate; 31. Mounting port; 32. Mounting hole; 33. Coil opening;

[0036] 40. first mounting plate; 41. first card slot;

[0037] 50. second mounting plate; 51. second card slot;

[0038] 60. fixing bracket; 61. fixing portion; 62. first fixing hole;

[0039] 200, refrigerator; 201, refrigerating compartment; 202, freezing compartment; 203, sealing element; 2031, water absorption hole; DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0041] An embodiment of the present application provides an evaporator assembly and a refrigerator, which are used to solve the problem of incomplete defrosting of the frost layer of the existing evaporator. In order to more clearly illustrate the structure of the evaporator assembly and the refrigerator, the evaporator assembly and the refrigerator will be introduced below in conjunction with the accompanying drawings.

[0042] The current air-cooled refrigerator has the characteristics of fast refrigeration speed, uniform temperature in the room, and precise control. However, during the refrigeration operation of the refrigerator, the water vapor carried in the air and the water vapor generated by the stored food flow through the evaporator in the freezer through the return air duct, encountering condensation on the surface of the evaporator with a very low temperature. When certain conditions are met, frost will occur. As the system runs, the thick frost layer with large thermal resistance seriously affects the air circulation on the surface of the evaporator, reducing the refrigeration efficiency of the refrigeration system, greatly prolonging the working time of the compressor, causing a large amount of power waste, and is not conducive to the energy-saving and consumption-reducing effect of the product.

[0043] See also Figure 1-Figure 3 , Figure 1 This is a schematic diagram of the structure of the evaporator assembly provided in the embodiment of the present application. Figure 2 for Figure 1 A front view of the evaporator assembly is shown. Figure 3 for Figure 2The side view of the evaporator assembly shown. The present application provides an evaporator assembly 100, the evaporator assembly 100 includes an evaporator and a heater 20, the evaporator includes a plurality of fins 11 arranged at intervals and an evaporation coil 12 passing through the fins 11, the plurality of fins 11 are arranged in parallel, the evaporation coil 12 is bent and connected and inserted between the plurality of fins 11, the fins 11 can assist the evaporation coil 12 to exchange heat with the air in the refrigeration room of the refrigerator 200, so that the temperature can be quickly reduced. The heater 20 is arranged below the heater 20 along the gravity direction, and the heater 20 can be an electric heater 20, and the heater 20 is electrically heated to defrost. The evaporator assembly 100 also includes at least one heat conducting plate 30, each of which is arranged between two of the fins 11, the heater 20 and the evaporation coil 12 are passed through the heat conducting plate 30, and the heat conducting plate 30 is used to transfer the heat of the heater 20 to the evaporation coil 12. Specifically, the heat emitted by the heater 20 is conducted to the heat conducting plate 30, and the heat conducting plate 30 transfers the heat to the evaporator 10 to fully utilize the heat of the heater 20. Since the heater 20 is located at the lower part of the evaporator 10, the heat conducting plate 30 is introduced between the pipe of the freezing evaporator and the heater 20, and the heat of the heater 20 is directly guided to the upper and middle parts of the freezing evaporator, so that the heat of the upper, middle and lower parts of the evaporator 10 is evenly distributed to the maximum extent, and it is prevented that when the frost layer on the evaporator 10 melts, the bottom of the evaporator 10 absorbs too much heat, resulting in reduced defrosting efficiency.

[0044] For example, see Figure 4 , Figure 4 A front view of a heat conducting plate provided in an embodiment of the present application. At least one heat conducting plate 30 is disposed between the plurality of fins 11 and parallel to the fins 11. There may be three heat conducting plates 30, which are spaced apart and distributed at the left, middle, and right parts of the evaporator 10. To ensure the heating effect in the horizontal direction of the evaporator 10, the present application does not limit the number of heat conducting plates 30. In some embodiments, the number of heat conducting plates 30 may be four, five, etc., and those skilled in the art may set the number according to actual conditions.

[0045] Exemplarily, the heat conducting plate 30 is provided with mounting openings 31 and mounting holes 32 at intervals along the direction of gravity, and the heater 20 includes a bent pipeline 21 and two straight pipelines 22 connected to each other, and two straight pipelines 22 adjacently arranged in the horizontal direction are passed through one of the mounting openings 31, and the bent pipeline 21 is passed through the mounting hole 32. Specifically, the straight pipeline 22 includes a first pipeline and a second pipeline arranged at intervals, the heater 20 also includes a first steering tube 23 and a second steering tube 24, the bent pipeline 21 also includes a first straight structure 211 and a second straight structure 212, the first steering tube 23 is connected to one end of a straight pipeline 22, and is connected to the first straight structure 211, the first straight structure 211 is connected to the second straight structure 212, and the whole forms a V-shaped structure, the connection between the first straight structure 211 and the second straight structure 212 is penetrated through the mounting hole 32, the second straight structure 212 is connected to the second steering tube 24, and is connected to another straight pipeline 22 through the second steering tube 24. The V-shaped bent pipeline 21 can be provided to conveniently guide the defrosting melted water to the water receiving tray.

[0046] Exemplarily, the evaporation coil 12 includes a plurality of parallel straight sections 121, the heat conducting plate 30 is provided with a plurality of coil openings 33 arranged at intervals, and two straight sections 121 arranged adjacent to each other in the gravity direction are inserted through one of the coil openings 33. Specifically, the evaporation coil 12 includes a plurality of sequentially connected straight sections 121 and curved sections 122, the two ends of the straight section 121 and the curved section 122 are respectively connected to a straight section 121, and the evaporation coil 12 forms an S-shaped structure as a whole. The straight section 121 and the curved section 122 are matched and connected, so that the evaporation coil 12 can have a larger heat exchange area and increase the utilization of the refrigerator refrigeration compartment.

[0047] Exemplarily, the coil opening 33 is tilted and the mounting opening 31 is horizontally arranged. Specifically, the coil opening 33 is arranged as an inclined long strip structure according to the structure of the straight section 121, and the mounting opening 31 is arranged as a horizontal long strip structure according to the structure of the straight pipe 22. The long strip structure can increase the opening length, which is convenient for the removal and installation of the evaporating coil 12 and the heating tube. In some embodiments, the coil opening 33 and the mounting opening 31 can also be hole-shaped structures.

[0048] Exemplarily, the evaporating coil 12 includes a plurality of straight sections 121 and a bent section. The plurality of straight sections 121 are arranged in parallel, and a bent section is connected to each end. By matching and connecting the straight sections 121 and the bent sections, the evaporating coil 12 can have a larger heat exchange area and fully utilize the space of the refrigeration compartment of the refrigerator 200.

[0049] For example, please refer to Figure 5 , Figure 5The front view of the first mounting plate provided in the embodiment of the present application. The evaporator assembly 100 also includes a first mounting plate 40 and a second mounting plate 50 respectively disposed on both sides of the evaporation coil 12, the first mounting plate 40 and the second mounting plate 50 are disposed parallel to the heat conducting plate 30, one end of the heater 20 is detachably connected to the first mounting plate 40, and the other end is detachably connected to the second mounting plate 50. Specifically, the first mounting plate 40 is provided with two first card slots 41 at intervals, and the second mounting plate 50 is provided with two second card slots 51 at intervals, and one end of each of the straight pipes 22 is clamped to one of the first card slots 41, and the other end is clamped to one of the second card slots 51. Among them, one end of the first pipeline is clamped in a first clamping slot 41, and is bent upward after being passed through the first mounting plate 40, and the other end of the first pipeline is clamped in a second clamping slot 51 and connected to the second steering tube 24; one end of the second pipeline is clamped in a second clamping slot 51, and is bent upward after being passed through the second mounting plate 50, and the other end of the second pipeline is clamped in the first clamping slot 41 and connected to the first steering tube 23. The peripheries of the first clamping slot 41 and the second clamping slot 51 can be provided with flanges, and the stability of the clamping is ensured by the flange structure.

[0050] See also Figure 6 , Figure 6 A side view of a fixing bracket provided in an embodiment of the present application. The evaporator assembly 100 also includes two fixing brackets 60, which are respectively connected to the first mounting plate 40 and the second mounting plate 50, and protrude to a side away from the evaporator 10, and the fixing brackets 60 are used to fix the evaporator assembly 100 to the refrigerator 200. Specifically, one fixing bracket 60 is welded to the first mounting plate 40 and is perpendicular to the first mounting plate 40, and one fixing bracket 60 is welded to the second mounting plate 50 and is perpendicular to the second mounting plate 50, each of the fixing brackets 60 includes two fixing portions 61, each of the fixing portions 61 is provided with a first fixing hole 62, the refrigerator 200 is provided with a second fixing hole, and the fastener is passed through the first fixing hole 62 and the second fixing hole to fix the evaporator assembly 100 to the refrigerator 200.

[0051] Exemplarily, the heat conducting plate 30 may be made of a first metal material, and the heater 20 may be made of a second metal material. To ensure the heat conducting effect, the first metal material may be copper, aluminum alloy or the like. To ensure the stability of the heat source, the hardness of the second metal material is greater than that of the first metal material. The second metal material may be steel.

[0052] See also Figure 7 , Figure 8 , Figure 7 A front view of a seal provided in an embodiment of the present application, Figure 8A schematic diagram of the structure of a refrigerator provided by an embodiment of the present application. The present application also provides a refrigerator 200, which can be a cabinet refrigerator 200, a wall-mounted refrigerator 200, etc. The refrigerator 200 includes a box, and the evaporator assembly 100 as described above is arranged in the box, and as a part of the heat exchange system of the refrigerator 200, it realizes the heat exchange and transfer function of the refrigerant together with other heat exchange equipment such as a compressor and a condenser to adjust the temperature in the box and achieve a cooling effect. The refrigeration cycle system of the refrigerator 200 also includes a compressor, a condenser, a drying filter, a capillary tube, etc. connected by a refrigerant pipe. The evaporator assembly 100 is used to provide cold capacity for the compartment of the refrigerator 200. The compressor is connected to the evaporator assembly 100 through a pipeline, which is used to compress the room temperature and low pressure condensing agent in the evaporator assembly 100 into a high temperature and high pressure condensing agent. The condenser is connected to the evaporator assembly 100 through a pipeline, which is used to convert the high temperature and high pressure condensing agent output by the compressor into a low temperature and low pressure condensing agent, and then flow into the evaporator assembly 100. Since the specific component connections and working principles of the refrigerator 200 refrigeration cycle system are common knowledge, this application will not repeat them. By setting the evaporator assembly 100, the energy consumption of the refrigerator can be further reduced while ensuring the refrigeration effect of the refrigerator, thereby improving the product energy efficiency level.

[0053] The refrigerator 200 includes a refrigerating compartment 201 and a freezing compartment 202, wherein the refrigerating compartment 201 and the freezing compartment 202 are connected via a refrigerating return air duct. The refrigerator 200 also includes a sealing member 203, which is disposed at a connection between the refrigerating compartment 201 and the refrigerating return air duct, and is used to absorb moisture in the air that flows back from the refrigerating compartment 201 to the freezing compartment 202. Specifically, a seal 203 is added at the connection between the entrance of the cold storage return air duct and the cold storage compartment 201, and a groove is provided at the periphery of the return air duct entrance, and the seal 203 is embedded in the groove. The seal 203 can be a TPE seal, and a plurality of water absorption holes 2031 are provided in the seal. The water in the humid air flowing back from the cold storage compartment 201 to the evaporator 10 is absorbed as much as possible through the water absorption holes 2031, so as to reduce the thickness and density of the frost layer on the surface of the evaporator 10, which is more conducive to the melting of the frost layer on the surface of the evaporator 10, improve the defrosting efficiency, reduce the defrosting increment, thereby reducing the energy consumption of the whole machine, reducing the fluctuation of the compartment temperature during defrosting, and facilitating the preservation of food. In some embodiments, the seal 203 can be bonded to the entrance of the cold storage return air duct, and the specific installation method is not limited in this application.

[0054] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0055] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0056] The evaporator assembly and the refrigerator provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An evaporator assembly, applied to a refrigerator, characterized in that: The evaporator assembly comprises: The evaporator comprises a plurality of fins arranged at intervals and an evaporation coil penetrating the fins; A heater is arranged below the evaporator along the gravity direction; At least one heat conducting plate, each of which is arranged between two of the fins, the heater and the evaporating coil are penetrated by the heat conducting plate, and the heat conducting plate is used to transfer the heat of the heater to the evaporating coil.

2. An evaporator assembly according to claim 1, characterized in that: At least one of the heat conducting plates is disposed between the plurality of fins and parallel to the fins.

3. An evaporator assembly according to claim 2, characterized in that: The heat conduction plate is provided with mounting openings and mounting holes at intervals along the gravity direction. The heater comprises a bent pipeline and two straight pipelines connected to each other. Two straight pipelines adjacently arranged in the horizontal direction are passed through one of the mounting openings, and the bent pipeline is passed through the mounting hole.

4. An evaporator assembly according to claim 3, characterized in that: The evaporating coil comprises a plurality of parallel straight sections, the heat conducting plate is provided with a plurality of coil openings arranged at intervals, and two straight sections arranged adjacent to each other in the gravity direction are passed through one of the coil openings.

5. An evaporator assembly according to claim 4, characterized in that: The coil opening is arranged obliquely, and the installation opening is arranged horizontally.

6. An evaporator assembly according to claim 3, characterized in that: The evaporator assembly also includes a first mounting plate and a second mounting plate respectively arranged on both sides of the evaporator coil, the first mounting plate and the second mounting plate are arranged parallel to the heat conduction plate, one end of the heater is detachably connected to the first mounting plate, and the other end is detachably connected to the second mounting plate.

7. An evaporator assembly according to claim 6, characterized in that: The first mounting plate is provided with two first slots at intervals, the second mounting plate is provided with two second slots at intervals, one end of each of the straight pipes is connected to one of the first slots, and the other end is connected to one of the second slots.

8. An evaporator assembly according to claim 7, characterized in that: The evaporator assembly also includes two fixing brackets, which are respectively connected to the first mounting plate and the second mounting plate and protrude toward a side away from the evaporator. The fixing brackets are used to fix the evaporator assembly to the refrigerator.

9. A refrigerator, characterized in that: include: Box; The evaporator assembly according to any one of claims 1 to 8, wherein the evaporator assembly is arranged in the casing.

10. The refrigerator according to claim 9, characterized in that: The refrigerator comprises a refrigerating compartment and a freezing compartment, wherein the refrigerating compartment and the freezing compartment are connected via a refrigerating return air duct, and the refrigerator further comprises a sealing member, wherein the sealing member is arranged at a connection between the refrigerating compartment and the refrigerating return air duct, and the sealing member is used for absorbing moisture in air returning from the refrigerating compartment to the freezing compartment.

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