CN210425712U - Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device - Google Patents

Abstract

The utility model relates to an air current dehumidification module and cold-stored refrigerating plant for cold-stored refrigerating plant, cold-stored refrigerating plant has the storing room that is used for storing article. The air flow dehumidification module comprises an air inlet pipe section, a cold transfer dehumidification pipe section and an air outlet pipe section which are sequentially communicated, the air inlet pipe section is communicated with the external environment, and the air outlet pipe section is communicated with the storage chamber. Pass cold dehumidification pipeline section and have the body and be in two at least mutually independent phase change energy storage units of body different positions department, carry out more abundant and thorough condensation dehumidification to the air current by room between the external environment flow direction storing in the different positions of passing cold dehumidification pipeline section with the cold volume that utilizes two at least mutually independent phase change energy storage units to store, so that the air current that flows to room between the storing is dry air current, thereby high-efficient prevented to refrigerate the inside frosting that produces of refrigerating device because of letting in high humid air current lastingly, the volume of frosting has been reduced, user's use experience has been improved.

Description

Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device

Technical Field

The utility model relates to a cold-stored refrigeration technique especially relates to an air current dehumidification module and cold-stored refrigeration device for cold-stored refrigeration device.

Background

Refrigerating and freezing devices, such as refrigerators, freezers, and refrigerated cabinets, are common electrical appliances used for storing various articles to be refrigerated or frozen, and are widely used in homes, supermarkets, and other various industries. After a certain period of use, a refrigerator-freezer can develop frost on its internal walls (especially in freezers, which produce a more pronounced amount of frost). One important reason for the formation of frost is that when the compressor is turned on or off, the pressure inside the refrigerating and freezing device changes, and the humid air from the external environment enters the refrigerating and freezing device through the door gap, and then the moisture in the humid air is condensed to form frost. The large amount of frost not only increases the amount of electricity used in the refrigerating and freezing apparatus, but also causes a poor experience when the user uses the apparatus.

In the prior art, a common method for reducing the frosting amount is to open a hole on a box body of a refrigeration and freezing device, connect the hole with the outside through a vent pipe, add a drying agent in the vent pipe, and enable the ventilation volume of the vent pipe to be larger than that of a door gap. When the compressor works, the external air is dehumidified by the desiccant through the pre-installed vent pipe and then enters the refrigeration and freezing device, so that the purpose of defrosting is achieved. However, the method has the problems that the service life of the drying agent in the vent pipe is short, the drying agent needs to be replaced periodically, and the use cost of a user is increased; in addition, hot air is directly introduced into the refrigerating and freezing device, so that the energy consumption of the refrigerating and freezing device is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an object of first aspect aims at overcoming at least one defect among the prior art, provides one kind can carry out the air current dehumidification module of dehumidification to the air current high-efficiently lastingly to reduce the frosting amount in the cold-stored refrigerating plant who has this air current dehumidification module, improve user's use and experience.

It is another object of the first aspect of the present invention to improve the dehumidification capacity and efficiency of an airflow dehumidification module.

The utility model discloses a further purpose of first aspect is with the phase change energy storage unit of air current dehumidification module and its regional part that frosts, avoids producing on the phase change energy storage unit and frosts and influence its performance.

Another further object of the first aspect of the present invention is to ensure that the cold storage of the phase change energy storage unit is more concentrated and rapid, avoiding heat transfer to the storage compartment of the cold storage freezer leading to an increase in energy consumption.

The utility model discloses the purpose of second aspect is to provide a cold-stored refrigeration device with above-mentioned air current dehumidification module.

According to a first aspect of the present invention, the present invention provides an airflow dehumidification module for a refrigeration and freezing apparatus, the refrigeration and freezing apparatus having a storage compartment for storing articles, the airflow dehumidification module comprising an air inlet pipe section, a cold transfer dehumidification pipe section and an air outlet pipe section which are sequentially communicated, the air inlet pipe section being communicated with an external environment, the air outlet pipe section being communicated with the storage compartment; and is

The cold transferring and dehumidifying pipe section is provided with a pipe body and at least two mutually independent phase change energy storage units which are arranged at different positions of the pipe body, so that cold energy stored by the at least two mutually independent phase change energy storage units is utilized to condense and dehumidify airflow flowing to the storage chamber from an external environment sequentially through the air inlet pipe section, the cold transferring and dehumidifying pipe section and the air outlet pipe section at different positions of the cold transferring and dehumidifying pipe section.

Optionally, the at least two mutually independent phase change energy storage units are arranged at intervals along the airflow flowing direction in the tube body so as to sequentially perform at least twice condensation and dehumidification on the airflow flowing from the external environment to the storage compartment.

Optionally, the at least two mutually independent phase change energy storage units are arranged on the outer side of the pipe body, and the cold energy stored in each phase change energy storage unit is transmitted to the inside of the pipe body through the pipe body of the cold transmission dehumidification pipe section.

Optionally, the refrigerating and freezing device is also provided with a box body, and the box body comprises an inner container, an outer shell and a foaming insulation layer formed between the inner container and the outer shell; and is

The air outlet pipe section, the cold transfer and dehumidification pipe section and the air inlet pipe section are at least arranged in the foaming heat insulation layer, and the at least two phase change energy storage units are arranged on one side of the pipe body, facing the inner container, and are in direct contact with the inner container.

Optionally, the phase change energy storage unit is a solid phase change energy storage block, one side of the phase change energy storage block is attached to the inner container to store cold energy from the inner container, and the other side of the phase change energy storage block is attached to the outer wall of the pipe body of the cold transfer dehumidification pipe section; or

The phase change energy storage unit comprises a cover plate and a phase change energy storage material, the cover plate is fixed on the outer side of the pipe body of the cold transfer dehumidification pipe section, one side of the cover plate is attached to the inner container, and a closed accommodating space is formed between the other side of the cover plate and the outer wall of the pipe body; the phase change energy storage material is arranged or filled in the accommodating space so as to store the cold energy transmitted from the inner container through the cover plate.

Optionally, each phase change energy storage unit is located in a gap between two adjacent evaporation tubes arranged outside the inner container; and is

The upper end and the lower end of each phase change energy storage unit are respectively contacted with the corresponding two evaporation tubes.

Optionally, the at least two mutually independent phase change energy storage units and the evaporation tube are uniformly arranged in the airflow direction in the tube body; and is

The distance between two adjacent phase change energy storage units is the same as the distance between two adjacent evaporation tubes arranged on the outer side of the inner container.

Optionally, the airflow dehumidification module further comprises:

and the fin assembly is arranged in the tube body of the cold transfer and dehumidification tube section to allow the cold energy stored in the at least two mutually independent phase change energy storage units to be transferred to the fin assembly through the tube body of the cold transfer and dehumidification tube section, so that the moisture in the air flow flowing through the cold transfer and dehumidification tube section is promoted to be condensed on the fin assembly.

Optionally, the airflow dehumidification module further comprises:

and the heating device is arranged on the outer wall of the tube body of the cold transfer dehumidification tube section and is used for promoting the frosting generated by the fin assembly to melt.

According to the utility model discloses a second aspect, the utility model discloses still provide a cold-stored refrigeration device, have the storing room that is used for storing article, still include above-mentioned arbitrary the air current dehumidification module, air current dehumidification module intercommunication external environment with the storing room to get into by external environment the air current of air current dehumidification module is sent to after carrying out the condensation dehumidification the storing room.

The utility model discloses an air current dehumidification module for cold-stored refrigerating plant communicates external environment and cold-stored refrigerating plant's storing space, and it passes cold dehumidification pipeline section and is equipped with phase change energy storage unit, the cold volume that usable phase change energy storage unit stored carries out the condensation dehumidification to the air current that passes through the cold dehumidification pipeline section of passing through, so that the air current of flow direction storing room is dry air current, thereby prevented that cold-stored refrigerating plant is inside to produce a large amount of frostings because of letting in high wet air current, its frosting amount has been reduced, user's use experience has been improved. The phase change energy storage unit releases the cold energy stored by the phase change energy storage unit in the phase change process, and the cold energy is utilized to promote the condensation of the moisture in the air flow circulating in the cold transfer and dehumidification pipe section, so that the aim of dehumidifying the air flow is fulfilled. Because the phase change process of the phase change energy storage unit is continuously carried out, the aim of dehumidification can be effectively achieved for a long time without regular replacement, and therefore frosting is effectively and durably prevented.

Simultaneously, because the quantity of phase change energy storage unit is at least two, and set up the different positions department at the body mutually independently, consequently, can carry out the condensation dehumidification operation to the air current that flows through it simultaneously in the different positions of biography cold dehumidification pipeline section, improved the dehumidification ability and the dehumidification efficiency of air current dehumidification module.

Further, because at least two phase change energy storage units set up in the body outside of passing cold dehumidification pipeline section, the cold volume of its storage passes through the body and transmits to the body of passing cold dehumidification pipeline section inside to the air current of the inside circulation of body carries out the condensation dehumidification, and is visible, and the comdenstion water that passes cold dehumidification pipeline section and produce or the frosting all are located its body inside. That is to say, the phase change energy storage unit and the frosting area of the airflow dehumidification module are separated, and the high-humidity airflow from the external environment cannot contact with the phase change energy storage unit, so that the performance of the phase change energy storage unit can be effectively prevented from being affected by the generation of condensed water or frosting on the phase change energy storage unit.

Furthermore, the cold transfer dehumidification pipe section with the phase change energy storage unit is in direct contact with the inner container of the box body of the refrigeration device, so that on one hand, the phase change energy storage unit is favorable for directly absorbing and storing cold energy through the inner container, and the cold storage of the phase change energy storage unit is more concentrated and faster; on the other hand, the phase change energy storage unit can also absorb heat radiated or transmitted to the inner container from the outside (the heat can be the heat of the air flow or the heat during defrosting), and the heat is prevented from being transmitted to the storage chamber through the inner container, so that the temperature fluctuation of the storage chamber and the energy consumption increase caused by the temperature fluctuation are avoided.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

figure 2 is a schematic cross-sectional view of a refrigeration and freezing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic block diagram of an airflow dehumidification module, according to one embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with another embodiment of the present invention;

FIG. 6 is a schematic exploded view of a cold transfer dehumidification segment in accordance with an embodiment of the present invention;

FIG. 7 is a schematic exploded view of a cold transfer dehumidification segment in accordance with another embodiment of the present invention;

FIG. 8 is a schematic front view of a portion of a cold transfer dehumidification section in accordance with another embodiment of the present invention;

figures 9 through 11 are schematic block diagrams of airflow dehumidification modules according to yet various embodiments of the present invention;

fig. 12 is a partial exploded view of a housing according to an embodiment of the invention.

Detailed Description

The utility model discloses at first provide an air current dehumidification module for cold-stored refrigerating plant, this cold-stored refrigerating plant can be for common storing device that has cold-stored and/or freezing function such as refrigerator, refrigerator-freezer, freezer. In particular, the refrigerating and freezing device of the present invention is preferably a refrigerator having a single storage compartment and having a pick-and-place opening at the top.

Fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic sectional view of the refrigerating and freezing apparatus according to an embodiment of the present invention. Referring to fig. 1 and 2, the refrigerating and freezing apparatus 1 of the present invention has a storage compartment 11 for storing articles. Specifically, the refrigerating and freezing device 1 includes a box 10, a storage compartment 11 and a compressor chamber 12 for accommodating a compressor 70 are defined in the box 10, and the compressor chamber 12 is communicated with the external environment. Typically, the compressor bin 12 is located at the bottom rear side within the tank 10. Further, the refrigerating and freezing device 1 further comprises a door body (for example, when the refrigerating and freezing device 1 is a refrigerator) or a box cover 90 (for example, when the refrigerating and freezing device 1 is a freezer or a freezer) for opening and/or closing the storage compartment 11.

Fig. 3 is a schematic block diagram of an airflow dehumidification module, according to an embodiment of the present invention. The utility model discloses an air current dehumidification module 20 is including the pipeline section 21 that admits air, pass cold dehumidification pipeline section 22 and the pipeline section 23 of giving vent to anger that are linked together in proper order, and the pipeline section 21 and the external environment intercommunication of admitting air give vent to anger pipeline section 23 and storing room 11 intercommunication between to allow the air current among the external environment to flow to storing room 11 through air current dehumidification module 20. Specifically, the joints between the air inlet pipe section 21 and the cooling dehumidification pipe section 22, between the cooling dehumidification pipe section 22 and the air outlet pipe section 23, and between the air outlet pipe section 23 and the storage chamber 11 are all sealed completely by using a sealing mechanism, so as to prevent the air flow in the air flow dehumidification module 20 from leaking outwards. The sealing structure may be, for example, a sealant, a gasket, and/or tape.

Further, the cold transfer and dehumidification pipe section 22 has a pipe body 221 and at least two mutually independent phase change energy storage units 222 located at different positions of the pipe body 221, so that the cold energy stored in the at least two mutually independent phase change energy storage units 222 is utilized to condense and dehumidify the airflow flowing from the external environment to the storage compartment 11 sequentially through the air inlet pipe section 21, the cold transfer and dehumidification pipe section 22 and the air outlet pipe section 23 at different positions of the cold transfer and dehumidification pipe section 22. When the compressor 70 is started, negative pressure is generated in the storage compartment 11. When the airflow sucked into the storage compartment 11 from the external environment passes through the cold transfer and dehumidification pipe section 22 due to the breathing effect, moisture in the airflow is condensed into water or frost and removed, so that the airflow flowing to the storage compartment 11 is dry airflow, thereby preventing a large amount of frost from being generated in the refrigeration and freezing device 1 (especially the storage compartment 11) due to the introduction of high-humidity airflow, reducing the frost formation amount of the refrigeration and freezing device, and improving the use experience of users.

Each phase change energy storage unit 222 comprises a phase change energy storage material, the phase change energy storage material can absorb and store cold energy from the refrigeration and freezing device 1 in one phase change process, the stored cold energy is released in the other phase change process, and the released cold energy is used for promoting the moisture in the air flow circulating in the cold transfer and dehumidification pipe section 22 to be condensed, so that the aim of dehumidifying the air flow is fulfilled. Because two phase change processes of the phase change energy storage material are continuously carried out, the air flow can be effectively condensed and dehumidified for a long time without periodic replacement, and therefore frosting is effectively and durably prevented.

Meanwhile, since the number of the phase change energy storage units 222 is at least two and the phase change energy storage units are independently arranged at different positions of the pipe body 221, the condensation and dehumidification operations can be simultaneously performed on the air flowing through the cooling and dehumidification pipe section 22 at different positions, and the dehumidification capability and the dehumidification efficiency of the air flow dehumidification module 20 are improved.

In some embodiments, the at least two mutually independent phase change energy storage units 222 are arranged at intervals along the airflow flowing direction in the tube body 221, so as to sequentially perform at least two times of condensation and dehumidification on the airflow flowing from the external environment to the storage compartment 11. Therefore, when the airflow flows through the cooling and dehumidifying pipe section 22, the phase change energy storage unit 222 located at the upstream of the airflow flowing direction firstly condenses and dehumidifies the airflow, and then the phase change energy storage unit 222 located at the downstream of the airflow flowing direction condenses and dehumidifies the airflow again, and so on. Therefore, the air flow flowing from the external environment to the storage compartment 11 can be more thoroughly and sufficiently dehumidified, and the dehumidification effect and the dehumidification capability of the air flow dehumidification module 20 are further improved.

In some embodiments, the at least two mutually independent phase change energy storage units 222 are disposed outside the pipe body 221, and the cold energy stored in each phase change energy storage unit 222 is transmitted to the inside of the pipe body 221 through the pipe body 221 of the cooling and dehumidifying pipe section 22, so as to condense and dehumidify the airflow inside the pipe body 221, and it can be seen that the condensed water or frost generated by the cooling and dehumidifying pipe section 22 is located inside the pipe body 221 thereof. That is, the area where the phase change energy storage unit of the airflow dehumidification module 20 is located is separated from the frosting area, so that the high humidity airflow from the external environment does not contact the phase change energy storage unit, and the performance of the phase change energy storage unit can be effectively prevented from being affected by the generation of condensed water or frosting on the phase change energy storage unit. Specifically, if the phase change energy storage unit frosts, the transmission of the cold energy stored in the phase change energy storage unit to the outside is blocked, so that the dehumidification effect is influenced; when defrosting, the phase change energy storage unit can absorb part of heat to influence the defrosting effect.

In some embodiments, the cabinet 10 of the refrigerating and freezing device 1 may include an inner container 13, an outer container 14, and a foamed insulation layer (not shown) formed between the inner container 13 and the outer container 14. At least the parts of the air outlet pipe section 23, the cooling and dehumidifying pipe section 22 and the air inlet pipe section 21 connected with the cooling and dehumidifying pipe section 22 are all arranged in the foamed heat insulation layer, and the at least two mutually independent phase change energy storage units 222 are positioned on one side of the pipe body 221 facing the inner container 13 and are in direct contact with the inner container 13. On one hand, the phase change energy storage unit 222 is beneficial to directly absorbing and storing cold energy through the inner container 13, and the cold storage is more concentrated and rapid; on the other hand, the phase change energy storage unit 222 may also absorb heat radiated or transferred from the outside to the inner container (the heat may be heat of air flow from the external environment or heat during defrosting), and prevent the heat from being transferred to the storage compartment through the inner container, thereby preventing temperature fluctuation of the storage compartment and energy consumption increase caused thereby.

In some embodiments, the phase change process of the phase change energy storage unit 222 may be a solid-solid phase change or a solid-liquid phase change. Fig. 4 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with an embodiment of the present invention. When the phase change process of the phase change energy storage unit 222 is solid-to-solid phase change, the phase change energy storage material is in a solid state. Referring to fig. 4, the phase change energy storage unit 222 may be a solid phase change energy storage block, one side of the phase change energy storage block is attached to the inner container 13 to store the cold energy from the inner container 13, and the other side is attached to the outer wall of the pipe body of the cold transmission and dehumidification pipe section 22 to transmit the stored cold energy to the inside of the cold transmission and dehumidification pipe section 22 through the pipe body 221 of the cold transmission and dehumidification pipe section 22, so as to facilitate the condensation of the moisture in the airflow flowing through the cold transmission and dehumidification pipe section 22, and the transmission efficiency is high and the loss of the cold energy is small. The phase change energy storage block can be completely attached to the inner container 13 so as to directly and quickly absorb and store the cold energy of the inner container 13, and further improve the concentration and rapidity of the cold storage.

Fig. 5 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with another embodiment of the present invention. When the phase change process of the phase change energy storage unit 222 is a solid-liquid phase change, the phase change energy storage material contained therein may be in a liquid form. Referring to fig. 5, when the phase change process of the phase change energy storage unit 222 is solid-solid phase change or solid-liquid phase change, the phase change energy storage unit 222 includes a cover plate 2221 and a phase change energy storage material, the cover plate 2221 is fixed to the outer side of the pipe body 2221 of the cooling and dehumidifying pipe section 22, one side of the cover plate 2221 is attached to the inner container 13, and a closed accommodating space 223 is formed between the other side of the cover plate and the outer wall of the pipe body 221 of the cooling and dehumidifying pipe section 22. The phase change energy storage material is disposed or filled in the accommodating space 223, that is, the phase change energy storage material may be a solid energy storage material disposed in the accommodating space 223 or a liquid energy storage material filled in the accommodating space 223, so as to store the cold energy transmitted from the inner container 13 through the cover plate 2221. The cold energy stored by the phase change energy storage material is directly transmitted to the interior of the cold transmission and dehumidification pipe section 22 through the pipe body 221 of the cold transmission and dehumidification pipe section 22, so that the moisture in the airflow flowing through the cold transmission and dehumidification pipe section 22 is promoted to be condensed, the transmission efficiency is high, and the cold energy loss is less. The cover plate 2221 can be completely attached to the inner container 13, so that the phase change energy storage material can rapidly absorb and store the cold energy of the inner container 13, and the cold accumulation concentration and rapidity are further improved. The cover plate 2221 is arranged to improve the convenience of assembling and fixing the solid phase change energy storage material, and provide a containing space for the solid-liquid phase change energy storage material to allow the solid-liquid phase change energy storage material to be used.

In some embodiments, the phase change energy storage unit 222 further includes a heat conductive material 2222 disposed on a surface thereof for directly contacting the inner container 13, so as to ensure reliable and stable transmission of cold energy. The heat conductive material 2222 may be, for example, a heat conductive grease or other heat conductive material with good heat conductivity. Specifically, when the phase change energy storage unit 222 is a solid phase change energy storage block, the heat conduction material 2222 may be coated on the surface of the phase change energy storage block, which is attached to the inner container 13, so as to ensure that the phase change energy storage block is completely attached to the inner container 13. When the phase change energy storage unit 222 includes the cover plate 2221, the heat conductive material 2222 may be coated on the surface of the cover plate 2221, which is attached to the inner container 13, so as to ensure that the cover plate 2221 is completely attached to the inner container 13.

In some embodiments, each phase change energy storage unit 222 is located in a gap between two adjacent evaporation tubes 60 disposed outside the inner container 13 to ensure reliable contact between the phase change energy storage unit 222 and the inner container 13. Further, the upper end and the lower end of each phase change energy storage unit 222 are respectively in contact with the two corresponding evaporation tubes 60, so that the phase change energy storage units 222 can absorb cold through the inner container 13 and also can absorb cold through the evaporation tubes 60 at the upper end and the lower end, the cold accumulation speed of the phase change energy storage units 222 is further increased, and the airflow in the airflow dehumidification module 20 is better condensed and dehumidified.

Further, the at least two mutually independent phase change energy storage units 222 and the evaporation tube 60 are uniformly arranged in the airflow direction in the tube body 221. The distance between two adjacent phase change energy storage units 222 is the same as the distance between two adjacent evaporation tubes 60 arranged outside the liner 13, so as to facilitate the arrangement of the phase change energy storage units 222 and the evaporation tubes 60. Specifically, the airflow dehumidification module 20 extends vertically as a whole, the air inlet pipe section 21 is located at the lowest position, the air outlet pipe section 22 is located at the uppermost position, and the airflow direction in the airflow dehumidification module is from bottom to top. The at least two mutually independent phase change energy storage units 222 and the evaporating pipes 60 are uniformly arranged in the vertical direction, and the vertical distance between two adjacent phase change energy storage units 222 is the same as the vertical distance between two adjacent evaporating pipes 60.

Fig. 6 is a schematic exploded view of a cold transfer dehumidification segment according to an embodiment of the present invention, and the straight arrows in fig. 6 indicate the airflow direction. In some embodiments, the airflow dehumidification module 20 further comprises a fin assembly 24, and the fin assembly 24 is disposed in the tubes 221 of the cooling and dehumidification section 22 to allow the cold energy stored in the at least two mutually independent phase change energy storage units 222 to be transferred to the fin assembly 24 through the tubes 221 of the cooling and dehumidification section 22, so as to promote the moisture in the airflow flowing through the cooling and dehumidification section 22 to be condensed on the fin assembly 24. The arrangement of the fin assembly 24 can increase the contact area with the air flow, so that the moisture in the air flow is more fully and completely condensed, the air flow flowing to the storage chamber 11 is dry air flow with low humidity, and the frosting amount in the storage chamber 11 is further reduced. Specifically, the inlet pipe section 21 and the outlet pipe section 23 may be thin pipe sections with a smaller inner diameter, and the inner diameter of the cooling and dehumidifying pipe section 22 is slightly larger due to the fin assembly 24. In order to reduce airflow resistance as much as possible and reduce influence of different inner diameters of the pipe sections on the flow speed of the airflow, the air inlet pipe section 21 and the air outlet pipe section 23 are communicated with the middle of the cooling and dehumidifying pipe section 22 in the direction perpendicular to the flow direction of the airflow, so that the airflow inlet and the airflow outlet of the cooling and dehumidifying pipe section 22 are located in the middle of the cooling and dehumidifying pipe section 22 in the direction perpendicular to the flow direction of the airflow.

Further, the fin assembly 24 may include a plurality of fin channels 242 partitioned by a plurality of spaced apart condensation fins 241, and the plurality of condensation fins 241 are arranged such that the amount of airflow through each fin channel 242 is the same. Therefore, each branch airflow can be fully condensed and dehumidified more fully.

It will be appreciated that there are a number of ways to achieve the same amount of airflow for each fin channel 242. One of the ways may be realized by the structure and arrangement of the plurality of condensing fins 241.

Specifically, each of the condensing fins 241 extends straightly along the flow direction of the air flow in the cooling and dehumidifying pipe section 22, so that the frost generated on the condensing fins 241 slides down. The plurality of condensing fins 241 are arranged at intervals in a direction perpendicular to the flow direction of the air current and are parallel to each other. The air flow inlet and the air flow outlet of the fin assembly 24 are both in the middle of the fin assembly 24 in the arrangement direction of the plurality of condensation fins 241. The plurality of condensing fins 241 are arranged such that: so that the width of the plurality of fin channels 242 arranged from the middle of the fin assembly 24 to both sides thereof gradually increases, and so that the distance between the air inlets of the plurality of fin channels 242 arranged from the middle of the fin assembly 24 to both sides thereof and the air flow inlet of the fin assembly 24 gradually increases. For example, when airflow dehumidification module 20 extends in the up-down direction, the airflow direction therein is also in the up-down direction. Each of the condensing fins 241 extends straightly in an up-down direction, and a plurality of the condensing fins 241 are arranged at intervals in a lateral direction. The air flow inlet and the air flow outlet of the fin assembly 24 are both located at the middle of the fin assembly 24 in the lateral direction. The width of the plurality of fin passages 242 arranged from the middle of the fin assembly 24 to both lateral sides thereof gradually increases, and the distance between the air inlets of the plurality of fin passages 242 arranged from the middle of the fin assembly 24 to both lateral sides thereof and the air flow inlet of the fin assembly 24 gradually increases. That is, the width of the fin channel 242 directly opposite the airflow inlet of the fin assembly 24 is smallest and closest to the airflow inlet of the fin assembly 24. The greater the width of the fin channel 242 that is offset from the airflow inlet of the fin assembly 24, the further away from the airflow inlet of the fin assembly 24. This ensures that the airflow volume is uniform in each fin passage 242.

Further, the distances from the air outlets of the plurality of fin channels 242 arranged from the middle to both sides of the fin assembly 24 to the air flow outlets of the fin assembly 24 are gradually increased to reduce the flow resistance of the air flow flowing out from each fin channel 242.

Fig. 7 is a schematic exploded view of a cooling and dehumidifying pipe section according to another embodiment of the present invention, fig. 8 is a partial schematic front view of a cooling and dehumidifying pipe section according to another embodiment of the present invention, and the flow direction of the air flow is indicated by the straight arrows in fig. 7 and 8. Referring to fig. 7 and 8, another way to achieve the same air flow rate of each fin channel 242 is to provide a first flow guide mechanism 243 for guiding the split flow at the air flow inlet of the fin channel 242. Specifically, each of the condensing fins 241 includes a fin main body 2411 extending straightly along the airflow flowing direction and a first flow deflector 2412 extending from a first end of the fin main body 2411 adjacent to the airflow inlet of the fin assembly 24 to a direction away from the fin main body 2411, and the first flow deflector 2412 forms a first preset included angle with the fin main body 2411. The first flow deflectors 2412 of the plurality of condensing fins 241 together form the first flow guiding mechanism 243.

Further, the air flow inlet of the fin assembly 24 is in the middle of the fin assembly 24 in the arrangement direction of the plurality of condensing fins 241. A first preset included angle formed between the fin main body 2411 and the first guide fin 2412 of the plurality of condensation fins 241 arranged from the middle to both sides of the fin assembly 24 is gradually reduced, so that the flow areas of the air inlets of the respective fin channels 242 are all the same, thereby ensuring that the air flow rates of the respective fin channels 242 are all the same. That is, the first guide flow 2412 of the plurality of condensation fins 241 arranged from the middle of the fin assembly 24 to both sides thereof is more and more inclined.

Further, each condensing fin 241 further includes a second flow deflector 2413 extending from a second end of the fin body 2411 thereof adjacent to the air flow outlet of the fin assembly 24 in a direction away from the fin body 2411. The second flow deflectors 2413 of the plurality of condensation fins 241 jointly form a second flow guiding mechanism 244 for guiding and converging the air flow flowing out of the fin assembly 24, so that the air flow flowing out of each fin channel 242 is converged together and then flows to the storage compartment 11, and the air flow flowing out of part of the fin channels 242 is prevented from encountering the inner wall of the air flow dehumidification module 20 to generate large flow resistance, thereby avoiding generating large influence on the flow speed of the air flow.

In some embodiments, airflow dehumidification module 20 further includes a heating device 25, and heating device 25 is disposed on an outer wall of tube body of cold transfer dehumidification tube section 22 for promoting melting of frost formed by fin assembly 24. Specifically, the heating device 25 may be controlled to start after the compressor 70 is shut down to promote the frost generated by the fin assembly 24 to melt, so that the fin assembly 24 has a good condensation and dehumidification function again. In particular, the heating device 25 may be a heating wire, a heating tube, or other suitable heating means.

Further, the density of the heating devices 25 in each region of the outer wall of the tube body of the cold transfer dehumidification section 22 is positively related to the amount of frost formation of the fin assemblies 24 in the corresponding region of the cold transfer dehumidification section 22. That is, the greater the frost formation amount, the more densely the heating devices 25 of the fin assembly 24 are arranged, so that the heat generated by the heating devices 25 can be matched with the actual frost formation amount of the fin assembly 24, and the uniformity and thoroughness of the frost formation of the fin assembly 24 are improved on the premise of avoiding the excessive heat generation of the heating devices 25.

Further, the heating device 25 is at least arranged in other areas outside the pipe body of the cooling and dehumidifying pipe section 22 except the area where the phase change energy storage unit 222 is located, so that heat generated by the heating device 25 can be prevented from being directly transferred to the phase change energy storage unit 222, and further transferred to the inside of the refrigeration and freezing device 1 through the phase change energy storage unit 222 to cause temperature fluctuation or energy consumption increase of the storage compartment 11.

Specifically, the outer wall of the body of the cold transfer dehumidification segment 22 includes a forward surface 2211 and a reverse surface 2212 that are oppositely disposed, and two lateral surfaces 2213 that are connected between the forward surface 2211 and the reverse surface 2212. The at least two phase change energy storage cells 222 are each disposed on the reverse surface 2212 disposed opposite to the inner container 13, and the heating device 25 is disposed in the other regions of the two lateral surfaces 2213 except for the region adjacent to the phase change energy storage cells 222 and on the forward surface 2211. That is, the heating device 25 is not disposed on the reverse surface 2212 of the outer wall of the tube 221 and in the region of the two lateral surfaces 2213 adjacent to the phase change energy storage unit 222, so that heat generated by the heating device 25 is prevented from being transferred to the inner container 13 through the phase change energy storage unit 222. To facilitate the arrangement of the fin assembly 24, the tube body 221 of the cold transfer dehumidification section 22 may include a main body 221a and a cover body 221b that are sealingly connected together, with an outer side surface of the cover body 221b forming the forward surface 2211.

In some embodiments, the lowest portion of the cold transfer and dehumidification section 22 connected to the intake section 21 is provided with a drain 226 for draining condensed water to the intake section 21. The heating device 25 is also disposed outside the section of the air intake pipe section 21 connected to the cold transfer dehumidification pipe section 22 to prevent the drain port 226 from being blocked by ice to affect the drainage of the condensed water.

Further, the heating device 25 is further arranged on the outer side of the end portion, connected with the storage chamber 11, of the air outlet pipe section 23, and can prevent water vapor generated during defrosting of the fin assembly 24 from being condensed and frosted at the airflow inlet 111 of the storage chamber 11 to block the airflow inlet 111, so that the problem that dry airflow cannot be continuously introduced into the storage chamber 11 after the airflow inlet 111 is blocked to influence the function of preventing frosting is avoided. The heating device 25 between the end of the air outlet pipe section 23 connected with the storage chamber 11 and the cold transfer and dehumidification pipe section 22 can be spirally wound on the outer wall of the air outlet pipe section 23 or linearly attached to the outer wall of the air outlet pipe section 23.

In the airflow dehumidification module 20, the number of the cold transfer dehumidification sections 22 can be set according to the air intake amount and the frost formation amount of the refrigeration and freezing device 1. In some embodiments, the number of the cooling dehumidification section 22 may be one or more, for example, in the embodiment shown in fig. 2, the number of the cooling dehumidification section 22 is one, and two phase change energy storage units 222 are disposed thereon.

One end of the air outlet pipe section 23 communicated with the storage compartment 11 forms an air outlet end 26 of the airflow dehumidification module 20, and one end of the air inlet pipe section 21 communicated with the external environment forms an air inlet end 27 of the airflow dehumidification module 20. Fig. 9 to 11 are schematic structural views of airflow dehumidification modules according to further various embodiments of the present invention. In other embodiments, the number of the air inlet pipe sections 21 may be one, and the air inlet pipe sections 21 are connected with a plurality of cold transfer dehumidification pipe sections 22 at the same time, so that the airflow dehumidification module 20 has only one air inlet end 27 (see the embodiment shown in fig. 9 and 10). Alternatively, the number of the air inlet pipe sections 21 and the number of the cooling and dehumidifying pipe sections 22 are the same, and each air inlet pipe section 21 is connected with a corresponding cooling and dehumidifying pipe section 22, so that the cooling and dehumidifying pipe section 20 has a plurality of air inlet ends 27 (see the embodiment shown in fig. 11). The plurality of intake ends 27 may be at different locations of the compressor bin 12. In these embodiments, when the number of the intake pipe sections 21 is one, the intake pipe sections 21 are double-pass pipes extending vertically; when the number of the intake pipe sections 21 is plural, the intake pipe sections 21 are multi-pass pipes having at least three branches.

Further, in some embodiments, the number of outlet pipe sections 23 is one, and the outlet pipe sections are connected to a plurality of cooling transfer dehumidification pipe sections 22 at the same time, so that the cooling transfer dehumidification pipe section 20 has only one outlet end 26 (see the embodiment shown in fig. 10 and 11). Alternatively, the outlet pipe sections 23 and the cooling and dehumidifying pipe sections 22 are multiple in number, and each outlet pipe section 23 is connected to a corresponding cooling and dehumidifying pipe section 22, so that the cooling and dehumidifying pipe section 20 has multiple outlet ends 26 (see the embodiment shown in fig. 9). The plurality of air outlet ends 26 can be communicated with different positions of the storage compartment 11. In these embodiments, when the number of the gas outlet pipe sections 23 is one, the gas outlet pipe sections 23 are double-pass pipes extending vertically; when the number of the outlet pipe sections 23 is plural, the outlet pipe section 23 is a multi-pass pipe having at least three branches.

In the embodiment shown in fig. 9-11, two phase change energy storage units 222 are provided for each cold transfer dehumidification section 22. In other alternative embodiments, three or more phase change energy storage units 222 may also be provided in the cold transfer dehumidification spool piece 22.

The utility model also provides a cold-stored refrigeration device 1, it has the storing compartment 11 that is used for storing article. The refrigerating and freezing device can be a common storage device with refrigerating and/or freezing functions, such as a refrigerator, an ice chest, a refrigerated cabinet and the like. In particular, the refrigerating and freezing device of the present invention is preferably a refrigerator having a single storage compartment and having a pick-and-place opening at the top.

Further, the refrigerating and freezing device 1 further comprises the airflow dehumidification module 20 described in any of the above embodiments. Airflow dehumidification module 20 intercommunication external environment and storing room 11 to the air current that gets into airflow dehumidification module 20 by the external environment carries out the condensation and send to storing room 11 after dehumidifying, thereby ensure that the air current that gets into storing room 11 is the drying air current, thereby prevented that cold-stored refrigeration device 1 is inside (especially storing room 11) because of letting in high wet air current and produce a large amount of frostings, reduced its amount of frosting, improved user's use experience.

In some embodiments, the intake duct section 21 of the airflow dehumidification module 20 may extend to the compressor compartment 12 and communicate with the outside environment through the compressor compartment 12. Thus, condensed water produced during condensation and/or defrosting in the cold transfer dehumidification section 22 may flow along the intake section 21 to the compressor bin 12. Since the compressor compartment 12 is typically located at the bottom of the refrigeration chiller 1, the removal of the condensed water from the airflow dehumidification module 20 is facilitated, thereby avoiding an impact on the airflow circulation. Meanwhile, a water pan is usually arranged in the compressor bin 12, and condensed water discharged through the air inlet pipe section 21 can be accommodated through the water pan, so that inconvenience brought to users due to the fact that a condensed water accommodating structure is additionally arranged or the condensed water directly flows to the ground is avoided.

Fig. 12 is a partial exploded view of a housing according to an embodiment of the invention. Further, the storage compartment 11 may be opened with an airflow inlet 111 for communicating with the airflow dehumidifying module 20, and the airflow inlet 111 is located at or near the top of the storage compartment 11 to prevent a user from blocking the airflow inlet 111 when placing an article and affecting the passing of an external airflow. Specifically, a gas-permeable protective cover 112 may be further disposed at the airflow inlet 111 of the storage compartment 11, and a plurality of gas-permeable holes are formed in the gas-permeable protective cover 112 to allow the airflow to pass therethrough and prevent impurities with large particles from entering the airflow dehumidification module 20 through the airflow inlet to obstruct the airflow. Specifically, the gas-permeable protecting cover 112 is detachably fixed at the gas flow inlet 111, so that the gas-permeable protecting cover 112 can be easily detached and replaced or periodically cleaned. For example, the gas-permeable cover 112 and the gas inlet 111 may be detachably connected by a snap-fit connection.

In some embodiments, a water pan 80 for collecting condensed water is further disposed in the compressor compartment 12, and the air inlet pipe section 21 of the airflow dehumidification module 20 extends above the water pan 80, so that the condensed water flowing out through the airflow dehumidification module 20 flows into the water pan 80, and inconvenience brought to users due to additional arrangement of a condensed water containing structure or direct flow of the condensed water to the ground is avoided.

Further, a water-receiving tray 80 may be disposed on the top of the compressor 70 to utilize heat generated by the compressor 70 to promote evaporation of condensed water in the water-receiving tray 80, so as to prevent the condensed water in the water-receiving tray 80 from overflowing. Alternatively, the drip pan 80 may be disposed on the bottom plate of the compressor compartment 12, so as to utilize the heat generated by the condenser disposed in the compressor compartment 12 to facilitate the evaporation of the condensed water in the drip pan 80, thereby preventing the condensed water in the drip pan 80 from overflowing.

It should be understood by those skilled in the art that, without specific description, terms used to represent orientations or positional relationships in the embodiments of the present invention, such as "upper," "lower," "inner," "outer," "horizontal," "front," "rear," and the like, are used with reference to actual usage status of the airflow dehumidification module 20 after being applied to the refrigeration and freezing apparatus 1, and are only used for convenience of description and understanding of the technical solutions of the present invention, and do not indicate or imply that the indicated device or component must have a specific orientation, and therefore, should not be construed as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. An air flow dehumidification module for a refrigeration and freezing apparatus having a storage compartment for storing goods,

the air flow dehumidification module comprises an air inlet pipe section, a cold transfer dehumidification pipe section and an air outlet pipe section which are sequentially communicated, the air inlet pipe section is communicated with the external environment, and the air outlet pipe section is communicated with the storage chamber; and is

The cold transferring and dehumidifying pipe section is provided with a pipe body and at least two mutually independent phase change energy storage units which are arranged at different positions of the pipe body, so that cold energy stored by the at least two mutually independent phase change energy storage units is utilized to condense and dehumidify airflow flowing to the storage chamber from an external environment sequentially through the air inlet pipe section, the cold transferring and dehumidifying pipe section and the air outlet pipe section at different positions of the cold transferring and dehumidifying pipe section.

2. The airflow dehumidification module of claim 1,

the at least two mutually independent phase change energy storage units are arranged at intervals along the airflow flowing direction in the pipe body so as to sequentially carry out condensation and dehumidification for at least two times on the airflow flowing from the external environment to the storage chamber.

3. The airflow dehumidification module of claim 1,

the at least two mutually independent phase change energy storage units are arranged on the outer side of the pipe body, and the cold energy stored by each phase change energy storage unit is transmitted to the inside of the pipe body through the pipe body of the cold transmission dehumidification pipe section.

4. The airflow dehumidification module of claim 3,

the refrigerating and freezing device is also provided with a box body, and the box body comprises an inner container, an outer shell and a foaming heat-insulating layer formed between the inner container and the outer shell; and is

The air outlet pipe section, the cold transfer and dehumidification pipe section and the air inlet pipe section are at least arranged in the foaming heat insulation layer, and the at least two phase change energy storage units are arranged on one side of the pipe body, facing the inner container, and are in direct contact with the inner container.

5. The airflow dehumidification module of claim 4,

the phase change energy storage unit is a solid phase change energy storage block, one side of the phase change energy storage block is attached to the inner container to store cold energy from the inner container, and the other side of the phase change energy storage block is attached to the outer wall of the pipe body of the cold transfer dehumidification pipe section; or

The phase change energy storage unit comprises a cover plate and a phase change energy storage material, the cover plate is fixed on the outer side of the pipe body of the cold transfer dehumidification pipe section, one side of the cover plate is attached to the inner container, and a closed accommodating space is formed between the other side of the cover plate and the outer wall of the pipe body; the phase change energy storage material is arranged or filled in the accommodating space so as to store the cold energy transmitted from the inner container through the cover plate.

6. The airflow dehumidification module of claim 5,

each phase change energy storage unit is arranged in a gap between two adjacent evaporation tubes arranged on the outer side of the inner container; and is

The upper end and the lower end of each phase change energy storage unit are respectively contacted with the corresponding two evaporation tubes.

7. The airflow dehumidification module of claim 6,

the at least two mutually independent phase change energy storage units and the evaporation tube are uniformly distributed in the airflow direction in the tube body; and is

The distance between two adjacent phase change energy storage units is the same as the distance between two adjacent evaporation tubes arranged on the outer side of the inner container.

8. The airflow dehumidification module of claim 1, further comprising:

and the fin assembly is arranged in the tube body of the cold transfer and dehumidification tube section to allow the cold energy stored in the at least two mutually independent phase change energy storage units to be transferred to the fin assembly through the tube body of the cold transfer and dehumidification tube section, so that the moisture in the air flow flowing through the cold transfer and dehumidification tube section is promoted to be condensed on the fin assembly.

9. The airflow dehumidification module of claim 8, further comprising:

and the heating device is arranged on the outer wall of the tube body of the cold transfer dehumidification tube section and is used for promoting the frosting generated by the fin assembly to melt.

10. A refrigerating and freezing apparatus having a storage compartment for storing articles, further comprising the airflow dehumidifying module of any one of claims 1 to 9, wherein the airflow dehumidifying module communicates with an external environment and the storage compartment to condense and dehumidify an airflow entering the airflow dehumidifying module from the external environment and then send the airflow to the storage compartment.

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