Vertical refrigerator
By adding dehumidifiers and polymer moisture absorbing materials in the refrigeration components of the vertical refrigerator, absorbing moisture in the cold air, the problems of frost, energy consumption and water leakage of the evaporator are solved, and more efficient refrigeration performance and more stable temperature control are achieved.
Patent Information
- Application Number
- CN202411799671.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-14
AI Technical Summary
When the existing vertical refrigerators deal with frosting of the evaporator, they lead to problems such as power consumption, rising indoor temperature in the freezer cabinet, and overflow in the melt-frost water storage tank.
A vertical refrigerator is adopted. By adding a dehumidification wheel in the refrigeration assembly, polymer moisture absorbing materials are used to absorb moisture in the cold air, reducing the humidity content of the cold air entering the evaporator, thereby avoiding frost on the surface of the evaporator.
It effectively avoids frost on the surface of the evaporator, reduces the energy consumption of the refrigeration system, and avoids the indoor temperature rise and sink overflow in the freezer cabinet.
Smart Images
Figure CN119617746A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of refrigeration equipment, and in particular to a vertical refrigerator. Background Art
[0002] With the rapid development of science and technology and economy, the living standards and quality of our people are constantly improving, making refrigerators and freezers indispensable refrigeration equipment in the home. Traditional horizontal freezers have problems such as inconvenient access, cumbersome defrosting, and incompatibility with home decoration. These problems have always troubled consumers. Therefore, vertical freezers came into being. They have the advantages of small footprint, easy classification and storage, convenient access, fashionable appearance, and better integration into home decoration, so they are favored by more and more families. At present, the refrigeration form of freezers is mainly divided into direct cooling and air cooling. Because air-cooled freezers have the advantages of precise temperature control and not easy to frost, they have become the first choice for consumers. However, the existing vertical freezers on the market generally have problems with evaporator frosting and low refrigeration performance. The reason is that most vertical freezers use the electric heating defrosting method of stopping the compressor when dealing with evaporator frosting. This method consumes power and easily causes the indoor temperature of the freezer to rise and the defrost water storage tank to overflow. Summary of the invention
[0003] In order to solve the above-mentioned problems of frosting, energy consumption and water leakage of the upright freezer, the present invention aims to provide an upright freezer which can effectively prevent frosting on the surface of the evaporator.
[0004] To this end, the present application provides a vertical refrigerator, comprising a cabinet having an outer shell and an inner liner and a refrigeration assembly, wherein the interior of the inner liner defines one or more storage compartments suitable for accommodating commodities, the refrigeration assembly is used to operate a refrigeration cycle to cool the one or more storage compartments, the refrigeration assembly comprises a compressor, a condenser, a throttling device and an evaporator, the cabinet also provides a first air duct and a second air duct that are thermally isolated from each other, the condenser is arranged in the first air duct, the first air duct is fluidly connected to the outside air, the evaporator is arranged in the second air duct, the inner liner has an air inlet and an air return port that are fluidly connected to the second air duct, the refrigeration assembly also includes a dehumidification wheel, the dehumidification wheel carries a regenerable desiccant and is configured to remove moisture from an air flow, the dehumidification wheel defines a processing side that can absorb moisture and a regeneration side that removes moisture, the dehumidification wheel is arranged with a motor transmission and can be driven by the motor to rotate between the processing side and the regeneration side, the processing side is positioned in the second air duct, and the regeneration side is positioned in the first air duct.
[0005] In the above technical solution, preferably, with respect to the air flow direction in the first air duct, the regeneration side is positioned downstream of the condenser.
[0006] In the above technical solution, preferably, a condenser fan is also arranged in the first air duct.
[0007] In the above technical solution, preferably, the condenser fan is located in the first air duct; in terms of the air flow direction in the first air duct, the condenser is located downstream of the condenser fan. In the above technical solution, preferably, the second air duct is located at the rear of the inner liner, and an air duct plate assembly is installed at the rear of the inner liner, the air duct plate assembly defines the front boundary of the second air duct, and the air duct plate assembly provides a plurality of air flow distribution holes for distributing the cold air from the air inlet to the one or more storage compartments.
[0008] In the above technical solution, preferably, an evaporator fan is provided in the second air duct.
[0009] In the above technical solution, preferably, one or more storage compartments are provided with storage drawers and / or storage boards.
[0010] In the above technical solution, preferably, the dehumidification wheel comprises a fiber wheel body, and the desiccant is coated on the wheel surface of the fiber wheel body.
[0011] In the above technical solution, preferably, the desiccant comprises a macromolecular hygroscopic material.
[0012] In the above technical solution, preferably, the motor is configured to drive the dehumidification wheel to rotate intermittently.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by adding a dehumidification wheel to adsorb water vapor in high-humidity cold air, the moisture content of the cold air entering the evaporator is reduced, and the problem of condensation and frosting on the evaporator surface is avoided; the condensation heat released by the condenser is used to separate the moisture adsorbed in the polymer adsorption material into the environment, and the problem of cold water generated after defrosting flowing into the sink and the sink overflowing is avoided; since the air entering the evaporator is low-temperature dry air, compared with the traditional vertical refrigerator device, the electric heating defrost device is reduced, and the entire system does not need to be stopped for heating and defrosting, and the air entering the box from the evaporator is continuously low-temperature air, so that the indoor temperature will not rise again. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of an upright freezer according to an embodiment of the present application; Figure 2 is a side cross-sectional schematic diagram of an upright refrigerator according to an embodiment of the present application; Figure 3 It is a schematic diagram of the composition of a vertical freezer refrigeration system according to an embodiment of the present application.
[0015] Among them: 100, upright freezer; 1, cabinet body; 2, cabinet door; 3, refrigeration component; 4, air duct plate component; 11, outer shell; 12 liner; 13, storage compartment; 14, storage rack; 15, storage drawer; 31, compressor; 32, condenser; 33, throttling device; 34, evaporator; 35, evaporator fan; 36, condenser fan; 101, first air duct; 102, second air duct; 121, air inlet; 122, return air outlet; 37, dehumidification wheel; 38, motor; 7, filter; 1011, grille air outlet. DETAILED DESCRIPTION
[0016] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.
[0017] See also Figure 1 and Figure 2 The vertical refrigerator 100 shown comprises a cabinet body 1 that can be supported on the ground and a cabinet door 2 mounted on the front side of the cabinet body 1. The cabinet door 2 is generally a foam cabinet door, which is rotatably mounted on the front of the cabinet body 1.
[0018] The cabinet body 1 is generally a double-layer structure consisting of an outer shell 11 and an inner liner 12. Foaming material (not shown in the figure) is filled between the inner liner 12 and the outer shell 11, and the foaming material can play a good role in heat preservation. The inner side of the inner liner defines a storage compartment 13 for storing items. The cabinet door 2 can close and open the storage compartment 13 from the front side of the cabinet body 1, so that the user can take items from the storage compartment 13 or store items to be refrigerated in the storage compartment 13.
[0019] In this example, the storage chamber 13 is divided into two layers, one connected from top to bottom. The upper area is an open area and one or more layers of storage racks 14 may be arranged in the upper area. The lower area is provided with a plurality of storage drawers 15 distributed from top to bottom. The user may choose to place the items to be refrigerated on the storage racks 14 or in the storage drawers 15.
[0020] In the upright freezer 100, the cabinet 1 is further provided with a refrigeration assembly 3 between the outer shell 11 and the inner tank 12. The refrigeration assembly 3 mainly includes a compressor 31, a condenser 32, a throttling device 33 and an evaporator 34. The refrigeration assembly 3 is usually installed at the lower part and the rear part of the cabinet 1. The compressor 31, the condenser 32, the throttling device 33 and the evaporator 34 are fluidly connected in sequence to form a refrigeration circuit for refrigerant circulation.
[0021] The refrigeration assembly 3 further includes an evaporator fan 35 and a condenser fan 36. The evaporator fan 35 can promote air flow through the evaporator 34, thereby enhancing the heat exchange efficiency of the evaporator 34; the condenser fan 36 takes away the heat in the condenser 32 by forcing air flow, thereby accelerating the cooling process of the refrigerant.
[0022] like Figure 3 As shown, the cabinet 1 also provides a first air duct 101 and a second air duct 102 that are thermally isolated from each other, and the condenser 32, the compressor 31 and the condenser fan 36 are arranged in the first air duct 101, and the first air duct 101 is in fluid communication with the outside air. The evaporator 34 and the evaporator fan 35 are arranged in the second air duct 102. The liner 12 has an air inlet 121 and an air return port 122 that are in fluid communication with the second air duct 102.
[0023] like Figure 2 As shown, the second air duct 102 is located at the rear of the inner liner 12, and a duct plate assembly 4 is installed at the rear of the inner liner 12. The duct plate assembly 4 defines the front boundary of the second air duct 102. The duct plate assembly 4 provides a plurality of air flow distribution holes for distributing cold air from the air inlet 121 to the storage compartment 13.
[0024] Continue as Figure 2 and Figure 3 As shown, the refrigeration assembly 3 further includes a dehumidifier wheel 37. The dehumidifier wheel 37 carries a regenerable moisture absorbent and is configured to remove moisture from the air flow. The dehumidifier wheel 37 defines a processing side capable of absorbing moisture and a regeneration side for removing moisture. The dehumidifier wheel 37 is arranged to be driven by a motor 38 and can be driven by the motor 38 to rotate between the processing side and the regeneration side. The processing side is positioned in the second air duct 102, and the regeneration side is positioned in the first air duct 101.
[0025] In terms of the air flow direction in the first air duct 101 , the regeneration side is located downstream of the condenser 32 , and the condenser 32 is located downstream of the condenser fan 36 .
[0026] The dehumidifying wheel 37 includes a fiber wheel body, and a desiccant is coated on the surface of the fiber wheel. The desiccant can be made of a high molecular weight hygroscopic material. The high molecular weight hygroscopic material is set to adsorb water vapor at -20°C-10°C and desorb water vapor at 30°C-80°C.
[0027] When the air flowing into the second air duct 102 from the return air port 122 flows over the left surface of the dehumidification wheel 37, the desiccant will absorb moisture in the air, reducing the humidity in the air. At this time, the desiccant material on the left surface of the dehumidification wheel 37 will become moist. Driven by the motor 38, the desiccant material moistened with moisture will rotate from the treatment side to the regeneration side; at the regeneration side, the hot air flow passing through the condenser 32 will take away the moisture, causing the desiccant to release the previously absorbed moisture. At this point, the desiccant is "regenerated" and ready to absorb new moisture. Driven by the motor 38, the desiccant wheel 37 will once again be sent to the treatment side after dehumidification and regeneration to repeat the process of desiccant and regeneration, continuously removing moisture from the air.
[0028] In some specific embodiments, the motor 38 is configured to drive the dehumidification wheel 37 to rotate intermittently. For example, the motor 38 is configured to be a timing motor. In addition, the contact position between the dehumidification wheel 37 and the first air duct 101 and the second air duct 102 is filled with a sealing material to prevent ambient air from penetrating into the cabinet 1.
[0029] Driven by the motor 38, the dehumidifier wheel 37 rotates and switches between the first air duct 101 and the second air duct 102. The high-humidity cold air from the storage room 13 enters the left surface of the dehumidifier wheel 37 through the second air duct 102. The low-temperature water vapor is adsorbed by the high-molecular hygroscopic material on the surface of the dehumidifier wheel 37 to reduce the moisture content of the cold air. The low-temperature and high-dryness cold air enters the evaporator 34 for heat exchange, thereby effectively avoiding the problem of condensation and frosting on the evaporator surface under low-temperature conditions in traditional air-cooled refrigerators; after the cold air is absorbed by the evaporator 34 and cooled, it enters the storage room 13 along the air inlet 121 driven by the evaporator fan 35, completing a cold air cycle.
[0030] At the same time, driven by the condenser fan 36 in the first air duct 101, the ambient air enters the first air duct 101 through the filter 7 at the entrance of the first air duct 101, and exchanges heat with the condenser 32 and the compressor 31. After being heated into high-temperature dry air (temperature range 40-70°C), it passes through the right side surface of the dehumidification wheel 37. The moisture adsorbed on the surface of the dehumidification wheel 37 is heated and separated from the polymer hygroscopic material in the form of water vapor, and is discharged into the environment through the grille air outlet 1011 on the first air duct 101, thereby effectively avoiding the problems of cold water flowing into the sink and sink overflowing after defrosting of traditional air-cooled refrigerators. At this time, the open circulation of air is completed through the heat exchange between the ambient air and the condenser 32 and the compressor 31, and the wet exchange with the dehumidification wheel 37.
[0031] Based on the above description, since the air entering the evaporator is low-temperature dry air, compared with the traditional upright freezer device, the electric heating defrost device is reduced, and the entire system does not need to be shut down for heating and defrosting. The air entering the box from the evaporator is continuously low-temperature air, so the indoor temperature will not rise again.
[0032] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.
Claims
1. A vertical refrigerator, comprising a cabinet having an outer shell and an inner liner and a refrigeration assembly, wherein the interior of the inner liner defines one or more storage compartments suitable for accommodating commodities, the refrigeration assembly is used to operate a refrigeration cycle to cool the one or more storage compartments, the refrigeration assembly comprises a compressor, a condenser, a throttling device and an evaporator, the cabinet also provides a first air duct and a second air duct that are thermally insulated from each other, the condenser is arranged in the first air duct, the first air duct is fluidly connected to the outside air, the evaporator is arranged in the second air duct, the inner liner has an air inlet and an air return port that are fluidly connected to the second air duct, and is characterized in that: The refrigeration component also includes a dehumidifier wheel, which carries a regenerable desiccant and is constructed to remove moisture from an air flow. The dehumidifier wheel defines a processing side that can absorb moisture and a regeneration side that removes moisture. The dehumidifier wheel is configured with a motor drive and can be driven by the motor to rotate between the processing side and the regeneration side. The processing side is positioned in the second air duct, and the regeneration side is positioned in the first air duct.
2. The vertical freezer according to claim 1, characterized in that: With respect to the air flow direction in the first air duct, the regeneration side is located downstream of the condenser.
3. The upright freezer according to claim 2, characterized in that: A condenser fan is also arranged in the first air duct.
4. The upright freezer according to claim 3, characterized in that: The condenser fan is located in the first air duct; in terms of the air flow direction in the first air duct, the condenser is located downstream of the condenser fan.
5. The upright freezer according to claim 1, characterized in that: The second air duct is located at the rear of the inner liner, and an air duct plate assembly is installed at the rear of the inner liner. The air duct plate assembly defines the front boundary of the second air duct, and the air duct plate assembly provides a plurality of air flow distribution holes for distributing the cold air from the air inlet to the one or more storage compartments.
6. The upright freezer according to claim 1, characterized in that: An evaporator fan is arranged in the second air duct.
7. The upright freezer according to claim 1, characterized in that: The one or more storage compartments are provided with storage drawers and / or storage boards.
8. The upright freezer according to claim 1, characterized in that: The dehumidifying wheel comprises a fiber wheel body, and the moisture absorbent is coated on the wheel surface of the fiber wheel body.
9. The upright freezer according to claim 8, characterized in that: The desiccant comprises a macromolecular desiccant material.
10. The upright freezer according to claim 1, characterized in that: The motor is configured to drive the dehumidification wheel to rotate intermittently.