CN112097439A

CN112097439A - Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device

Info

Publication number: CN112097439A
Application number: CN201910528108.0A
Authority: CN
Inventors: 李靖; 房雯雯; 梁静娜; 田红荀
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-12-18
Anticipated expiration: 2039-06-18
Also published as: CN112097439B

Abstract

The invention relates to an airflow dehumidification module for a refrigeration and freezing device and the refrigeration and freezing device. 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. Be equipped with in the biography cold dehumidification pipeline section and be used for carrying out the fin subassembly that condenses the dehumidification to the air current that flows into the storing room by external environment for the air current that flows into the storing room is the very low dry air current of humidity, has reduced the indoor frosting volume between the storing, has improved user's use and has experienced. The fin assembly is arranged to evenly distribute the amount of frost in each region thereof. The airflow dehumidification module also comprises a heating device, and the heating device is at least arranged on the outer wall of at least part of the pipe body of the cooling dehumidification pipe section and is used for promoting frost formed by the fin assembly to melt; and the heat generated by the heating device on the outer wall of at least part of the tube body is uniformly distributed, so that the defrosting uniformity of the fin assembly is improved.

Description

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

Technical Field

The invention relates to a refrigeration and freezing technology, in particular to an airflow dehumidification module for a refrigeration and freezing device and the refrigeration and freezing 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, the operation difficulty is high, 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.

Disclosure of Invention

An object of the first aspect of the present invention is to overcome at least one of the drawbacks of the prior art, and to provide an airflow dehumidification module capable of sufficiently dehumidifying airflow for a long time, so as to reduce the amount of frost formation in a refrigeration and freezing apparatus having the airflow dehumidification module, and improve the user experience.

It is a further object of the first aspect of the invention to improve the uniformity of defrosting of the fin assembly.

It is a further object of the first aspect of the present invention to avoid the transfer of heat generated by the heating means to the interior of the refrigeration and freezing apparatus resulting in increased energy consumption or temperature fluctuations in the storage compartment.

The second aspect of the invention aims to provide a refrigerating and freezing device with the airflow dehumidification module.

According to a first aspect of the present invention, there is provided an airflow dehumidification module for a refrigeration and freezing apparatus having a storage compartment for storing items,

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 to allow air flow in the external environment to flow to the storage chamber through the air flow dehumidification module; wherein

The cold transfer dehumidification pipe section is internally provided with a fin assembly for condensing and dehumidifying airflow flowing from the external environment to the storage chamber, and the fin assembly is arranged to enable the frosting amount of each area to be uniformly distributed;

the airflow dehumidification module further comprises a heating device, the heating device is at least arranged on the outer wall of at least part of the pipe body of the cold transfer dehumidification pipe section and is used for promoting frost formed by the fin assembly to melt; and the heating device is arranged to evenly distribute the heat generated by the heating device on the outer wall of at least part of the pipe body.

Optionally, the fin assembly includes a plurality of fin channels partitioned by a plurality of spaced-apart condensation fins, and an airflow inlet of the fin assembly has a first flow guide mechanism for guiding and dividing airflow flowing to the fin assembly, so that airflow passing through each fin channel is the same, and a surface area for frosting of each condensation fin is the same, so that a frosting amount of each condensation fin is the same.

Optionally, a plurality of the condensing fins are arranged at intervals in a direction perpendicular to the airflow flowing direction in the airflow dehumidification module; each condensing fin comprises a fin main body extending straightly along the airflow flowing direction and a first flow deflector extending from a first end of the fin main body adjacent to the airflow inlet to the direction away from the fin main body, and a first preset included angle is formed between the first flow deflector and the fin main body; wherein

The first guide vanes of the plurality of condensation fins collectively form the first guide mechanism.

Optionally, the air flow inlet of the fin assembly is located in the middle of the fin assembly in the arrangement direction of the plurality of condensation fins; and is

The first preset included angle formed between the fin main body of the plurality of condensation fins and the first guide vane is gradually reduced from the middle of the fin component to the two sides of the fin component, so that the flow areas of the air inlets of the fin channels are the same.

Optionally, the cold transfer dehumidification pipe section further comprises at least one phase change energy storage unit arranged on the outer wall of the pipe body of the cold transfer dehumidification pipe section, so that cold energy stored in the phase change energy storage unit is allowed to be transferred to the fin assembly through the pipe body;

the heating device is uniformly arranged in other areas of the outer wall of the pipe body except for the area where the at least one phase change energy storage unit is located.

Optionally, the outer wall of the pipe body of the cold transfer dehumidification pipe section comprises a forward surface and a reverse surface which are oppositely arranged, and two lateral surfaces connected between the forward surface and the reverse surface; wherein

The at least one phase change energy storage unit is arranged on the reverse surface, and the heating devices are uniformly arranged in other areas of the two lateral surfaces except for the area adjacent to the phase change energy storage unit and on the forward surface.

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 dehumidification pipe section and the air inlet pipe section are at least arranged in the foaming heat insulation layer, and the at least one phase change energy storage unit is arranged outside the pipe section and on one side facing the inner container and is attached to the inner container to store cold energy from the inner container.

Optionally, the bottommost part of the cold transfer and dehumidification pipe section, which is connected with the air inlet pipe section, is provided with a water discharge port for discharging condensed water generated by the fin assembly to the air inlet pipe section; and is

The heating device is also arranged outside the section of the air inlet pipe section connected with the cold transfer and dehumidification pipe section to prevent the water outlet from being blocked by ice.

Optionally, the heating device is further arranged outside the end part of the air outlet pipe section connected with the storage chamber;

and the heating device positioned between the end part of the air outlet pipe section connected with the storage chamber and the cold transfer dehumidification pipe section is spirally wound on the outer wall of the air outlet pipe section or is attached to the outer wall of the air outlet pipe section.

According to a second aspect of the present invention, the present invention further provides a refrigeration and freezing apparatus, which has a storage compartment for storing articles, and further comprises any one of the above-mentioned airflow dehumidification modules, wherein the airflow dehumidification module is communicated with an external environment and the storage compartment, so as to condense and dehumidify an airflow entering the airflow dehumidification module from the external environment, and send the airflow to the storage compartment.

The airflow dehumidification module for the refrigeration and freezing device is communicated with the external environment and the storage space of the refrigeration and freezing device, and the fin assembly capable of increasing the contact area with the airflow is arranged in the cooling and dehumidification pipe section, so that moisture in the airflow flowing through the cooling and dehumidification pipe section can be fully condensed on the fin assembly to perform relatively thorough condensation and dehumidification on the airflow, the airflow flowing to the storage compartment is dry airflow with low humidity, a large amount of frosting caused by introduction of high-humidity airflow in the refrigeration and freezing device is prevented, the frosting amount of the refrigeration and freezing device is reduced, and the use experience of a user is improved. The frosting that produces on the fin subassembly can be got rid of through heating device for the fin subassembly possesses condensation dehumidification's function again, need not regularly to change any part alright reach the purpose of dehumidification effectively for a long time.

Meanwhile, the frosting amount of each area on the fin assembly is uniform, and the heating devices are uniformly arranged in each setting area of the outer wall of the cold transfer dehumidification pipe section, namely, the heat generated by the heating devices is matched with the frosting amount actually generated by the fin assembly, so that the defrosting uniformity of the fin assembly is improved.

Further, the outer wall of the cold transfer dehumidification pipe section of the airflow dehumidification module is provided with a phase change energy storage unit, the phase change energy storage unit can release cold energy stored in the phase change process, and the cold energy is transferred to the fin assembly, so that the fin assembly can condense and dehumidify the airflow conveniently. The heating device is not arranged in the area where at least the phase change energy storage unit of the outer wall of the cold transfer dehumidification pipe section is located, so that the heat generated by the heating device can be prevented from being directly transmitted to the phase change energy storage unit, and then the temperature fluctuation or energy consumption increase of the storage room is caused by the transmission of the phase change energy storage unit to the inside of the refrigeration and freezing device.

Further, heating device still sets up in the tip outside of giving vent to anger the pipeline section and linking to each other with the storing room, and the vapor that can prevent to produce when the fin subassembly defrosting meets the condensation and frosts at the air inlet department of storing room and blocks up the air inlet to can't continue to let in dry air current and influence the function that prevents frosting in the storing room after avoiding the air inlet to block up.

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 invention will be described in detail hereinafter, by way of illustration and not 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 freezer apparatus according to one embodiment of the 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 partial exploded view of an airflow dehumidification module, in accordance with one embodiment of the present invention;

FIG. 5 is an elevation view of a portion of a cold transfer dehumidification segment in accordance with one embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with one embodiment of the present invention;

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

FIGS. 8-10 are schematic block diagrams of airflow dehumidification modules according to further various embodiments of the present disclosure;

FIG. 11 is a partial exploded view of the housing according to one embodiment of the invention.

Detailed Description

The invention firstly provides an airflow dehumidification module for a refrigeration and freezing device, wherein the refrigeration and freezing device can be a common storage device with refrigeration 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 with an access opening at the top.

Fig. 1 is a schematic configuration diagram 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 device 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 one embodiment of the present disclosure. The air flow dehumidification module 20 comprises an air inlet pipe section 21, a cold transfer dehumidification pipe section 22 and an air outlet pipe section 23 which are sequentially communicated, wherein the air inlet pipe section 21 is communicated with the external environment, and the air outlet pipe section 23 is communicated with the storage chamber 11 so as to allow air flow in the external environment to flow to the storage chamber 11 through the air flow dehumidification module 20. The airflow dehumidification module 20 is used for condensing and dehumidifying the airflow flowing from the external environment to the storage compartment 11. Specifically, when the compressor 70 is turned on, 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 airflow dehumidification module 20 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, thereby preventing the interior of the refrigeration and freezing device 1 (especially the storage compartment 11) from frosting due to the introduction of high-humidity airflow, reducing the frosting amount of the storage compartment, and improving the use experience of a user. The joints between the air inlet pipe section 21 and the cooling and dehumidifying pipe section 22, between the cooling and dehumidifying 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 adopting a sealing mechanism, so that the air flow in the air flow dehumidifying module 20 is prevented from leaking outwards. The sealing structure may be, for example, a sealant, a gasket, and/or tape.

FIG. 4 is a partial exploded view of an airflow dehumidification module, in accordance with one embodiment of the present invention. Specifically, fig. 4 is a schematic exploded structural view of a cold transfer dehumidification section (see below) of an airflow dehumidification module, according to one embodiment of the invention. The straight arrows in fig. 4 indicate the airflow direction. Further, a fin assembly 24 for condensing and dehumidifying the air flowing from the external environment to the storage compartment 11 is disposed in the cooling and dehumidifying pipe section 22. The fin assembly 24 allows moisture in the airflow passing through the airflow dehumidification module 20 to condense on the fin assembly 24, thereby performing a condensation and dehumidification function. 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. Meanwhile, frosting generated on the fin assembly 24 can be removed through heating or other modes, so that the fin assembly 24 has the functions of condensation and dehumidification again, and the aim of dehumidification can be effectively achieved for a long time without replacing any part regularly.

Furthermore, airflow dehumidification module 20 further includes a heating device 25, and heating device 25 is disposed at least on an outer wall of at least a portion of tubes 221 of cold transfer dehumidification 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.

In particular, the fin assembly 24 is configured to evenly distribute the amount of frost in each region thereof. That is, the amount of frost is the same for each area of the fin assembly 24. The heating means 25 is arranged to distribute the heat generated at the outer wall of at least part of the tube 221 uniformly. For example, the heating devices 25 may be uniformly arranged in each of the areas on the outer wall of the tube body of the dehumidification cooling and dehumidification section 33 to ensure uniform distribution of the heat generated by the heating devices on the outer wall of at least part of the tube body 221. Therefore, the heat generated by the heating devices 25 in each area is matched with the actual frosting amount of the corresponding fin assembly 24, and the defrosting uniformity and thoroughness of the fin assembly 24 are improved on the premise of avoiding excessive heat generated by the heating devices 25.

In some embodiments, the fin assembly 24 includes a plurality of fin channels 242 separated by a plurality of spaced apart condensation fins 241. It is understood that a fin channel 242 is formed between each two adjacent condensation fins 241 and between the condensation fin 241 at the end and the inner wall of the airflow dehumidification module 20. 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 221b that are hermetically connected together. Specifically, the main body 221a and the cover body 221b may be hermetically connected together by a sealant that is resistant to low temperature and waterproof; the main body 221a and the cover 221b may be sealingly coupled together by means of a screw and a sealing ring. The main body 221a and the cover body 221b together define a receiving cavity communicating with the inlet pipe section 21 and the outlet pipe section 23, in which the fin assembly 24 is disposed, and may be integrally formed with the main body 221 a. In order to ensure that the heat generated by the heating device 25 can be uniformly and efficiently transferred to the respective condensation fins 241 of the fin assembly 24, the width of the condensation fins 241 may be set to be approximately equal to the width of the main body 221a of the tube body 221, so as to ensure that each condensation fin 241 is in contact with the cover 221b of the tube body 221 after the main body 221a and the cover 221b are assembled together, thereby uniformly and efficiently transferring the heat generated by the heating device 25 to each condensation fin 241 through the cover 221 b.

Further, the fin assembly 24 has a first flow guide mechanism 243 at the air flow inlet 24a (the position of the air flow inlet 24a of the fin assembly 24 is generally expressed by a dotted circle since it is an area) for guiding and dividing the air flow flowing to the fin assembly 24, so that the air flow volume through each fin channel 242 is the same. The surface area for frosting of each of the condensing fins 241 is the same so that the frosting amount of each of the condensing fins 241 is the same. Therefore, each branch airflow flowing through each fin channel 242 can be more fully and thoroughly condensed and dehumidified, and frosting of each condensing fin 241 is more uniform, which is beneficial to more uniform and more thorough defrosting of each condensing fin 241. Specifically, if the airflow quantity of each fin channel 242 is different, the airflow quantity of a part of the fin channels 242 is too large, and exceeds the condensation capacity of the condensation fin 241, so that the moisture in the branched airflow flowing through the part of the fin channels 242 cannot be completely and sufficiently condensed, and thus, after the airflow with higher humidity flows to the storage compartment 11, more frost is generated in the storage compartment 11, and the use experience of the user is affected. Instead, the air flow of the other part of the fin passage 242 is too small, and the amount of frost generated on the corresponding condensing fin 241 is small. It is conceivable that the condensation fins 241 may generate a large amount of frost, and the condensation fins 241 may generate a small amount of frost, which is very disadvantageous to complete defrosting of the condensation fins 241.

FIG. 5 is an elevation view of a portion of a cold transfer dehumidification segment in accordance with one embodiment of the present invention. In some embodiments, the plurality of condensing fins 241 are spaced apart in a direction perpendicular to the airflow flow direction in the airflow dehumidification module 20; each of the condensing fins 241 includes a fin main body 2411 extending straightly in the airflow flowing direction and a first guide plate 2412 extending from a first end of the fin main body 2411 adjacent to the airflow inlet 24a to a direction away from the fin main body 2411, wherein the first guide plate 2412 forms a first preset included angle with the fin main body 2411. Further, the fin main body 2411 of each condensation fin 241 has the same length and width to ensure that the frosting area of each condensation fin 241 for frosting is substantially the same. For example, when the airflow dehumidification module 20 extends vertically as a whole, the end thereof communicating with the external environment may be lowermost, and the end thereof communicating with the storage compartment 11 may be uppermost, so that the airflow flowing direction therein is from bottom to top. The airflow inlet 24a of the fin assembly 24 is located at the lower end thereof, and the airflow outlet 24b of the fin assembly 24 is located at the upper end thereof. The plurality of condensing fins 241 are arranged at intervals in the transverse direction, the fin main bodies 2411 of the condensing fins 241 extend in the up-down direction, and the first guide vanes 2411 are inclined downwards or extend straightly from the lower ends of the fin main bodies 2411, so that a first preset included angle is formed between the first guide vanes 2411 and the fin main bodies 2411.

Further, the first flow deflectors 2412 of the plurality of condensation fins 241 collectively form the first flow guiding mechanism 243. That is, the first flow guide mechanism 243 is formed by a partial structure of each of the condensing fins 241 together, simplifying the structure of the fin assembly 24. Of course, in other alternative embodiments, each condensing fin 241 may also extend straightly along the airflow flowing direction in the airflow dehumidification module 20, and the first flow guiding mechanism 243 is a separate component additionally disposed at the airflow inlet 24a of the fin assembly 24.

In some embodiments, the airflow inlet 24a of the fin assembly 24 is located at the middle of the fin assembly 24 in the arrangement direction of the plurality of condensing fins 241, so as to facilitate the airflow to flow to each fin channel 242 after being divided into a plurality of branches. For example, when the airflow dehumidification module 20 extends in the vertical direction, the plurality of condensation fins 241 are arranged at intervals in the lateral direction, and the airflow inlet 24a and the airflow outlet 24b of the fin assembly 24 are both located at the middle of the fin assembly 24 in the lateral direction. 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 minimize the influence of the difference in the inner diameters of the pipe sections on the flow velocity of the airflow, the air inlet pipe section 21 and the air outlet pipe section 23 are both 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 both in the middle of the cooling and dehumidifying pipe section 22 in the direction perpendicular to the flow direction of the airflow, and further the airflow inlet 24a and the airflow outlet 24b of the fin assembly 24 are in the middle of the cooling and dehumidifying pipe section in the direction perpendicular to.

Specifically, 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 decreased, so that the flow areas of the air inlets of the respective fin passages 242 are all the same. For example, when the airflow dehumidification module 20 extends vertically, a first preset included angle formed between the fin body 2411 of the plurality of condensation fins 241 arranged from the middle of the fin assembly 24 to both lateral sides thereof and the first guide fin 2412 gradually decreases. That is, the first guide piece 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 with respect to the fin body 2411 itself. In other words, the first preset included angle formed between the fin body 2411 of the condensing fin 241 facing the air flow inlet 24a of the fin assembly 24 and the first guide plate 2412 is the largest, and the inclination degree of the first guide plate 2412 is the smallest. The smaller the first preset included angle formed between the fin main body 2411 and the first guide fin 2412 of the condensation fin 241 toward the two sides is, the greater the inclination degree of the first guide fin 2412 is. Thus, the first flow guide mechanism 243 is formed to ensure that the flow rates of the respective fin passages 242 are uniform.

Specifically, in the embodiment shown in fig. 5, the fin body 2411 and the first guide vane2412, a first preset included angle formed between the fin body 2411 and the first guide vane 2412 of each condensing fin 241 is represented by a, and the magnitude relationship of the first preset included angle formed between the fin body 2411 and the first guide vane 2412 is as follows: a is₂＝a₃，a₄＝a₅，a₁＞a₃＞a₅。

In some embodiments, the fin bodies 2411 of each of the condensation fins 241 have the same length extending in the airflow flowing direction, and the width of the fin bodies of each of the condensation fins 241 is the same, so that the frost formation area of each of the condensation fins 241 is the same. For example, when the airflow dehumidification module 20 extends in the vertical direction, the fin body 2411 of each condensation fin 241 extends in the up-down direction by the same length. Because the airflow quantity of each fin channel 242 is the same and the frosting area of each condensing fin 241 is the same, not only can the branched airflow flowing through each fin channel 242 be fully and thoroughly dehumidified, but also the frosting quantity generated on each condensing fin 241 is relatively uniform, which is beneficial to more uniform and more thorough defrosting of each condensing fin 241.

In some embodiments, 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 24b of the fin assembly 24 in a direction away from the fin body 2411. For example, when airflow dehumidification module 20 extends vertically as a whole, airflow outlet 24b of fin assembly 24 is located at its upper end. The plurality of condensing fins 241 are arranged at intervals in the transverse direction, the fin main bodies 2411 of the condensing fins 241 extend in the up-down direction, and the second guide vanes 2413 are inclined upwards or extend straightly from the upper ends of the fin main bodies 2411, so that a second preset included angle is formed between the second guide vanes and the fin main bodies 2411.

Further, the second flow deflectors 2413 of the plurality of condensation fins 241 collectively form a second flow guiding mechanism 244 for guiding and converging the airflow flowing out of the fin assembly 24. The second flow guide mechanism 244 is simple in structure, and is convenient for the air flows flowing out of the fin channels 242 to converge together and flow to the storage compartment 11, so that the air flows flowing out of part of the fin channels 242 are prevented from encountering the inner wall of the air dehumidification module 20 to generate large flow resistance, and the flow rate of the air flows is prevented from being greatly influenced.

In order to facilitate better flow convergence, a second preset included angle formed between the fin main body 2411 and the second guide vane 2413 of the plurality of condensation fins 241 arranged from the middle to both sides of the fin assembly 24 is gradually decreased. That is, the second guide piece 2413 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 with respect to the fin body 2411 itself. Specifically, in the embodiment shown in fig. 5, a second preset included angle formed between the fin body 2411 of each condensing fin 241 and the second guide vane 2413 is denoted by b, and the magnitude relationship of the second preset included angle formed between the fin body 2411 of each condensing fin 241 and the second guide vane 2413 is as follows: b₂＝b₃，b₄＝b₅，b₁＞b₃＞b₅。

Further, the surface of each of the condensing fins 241 may be provided with a protrusion to increase the contact area of the condensing fin 241 with the air flow, thereby increasing the heat exchange area of the condensing fin 241, increasing the frost condensation speed, and further ensuring that the air flow passing through the condensing fin 241 is completely and thoroughly dehumidified. The protrusions may be, for example, serrated, wavy, or other suitable shapes.

In some embodiments, the bottommost portion of the cold transfer and dehumidification tube segment 22 connected to the air intake tube segment 21 is provided with a drain port 226 for draining the condensed water generated by the fin assembly 24 to the air intake tube segment 21. The drain port 226 smoothly transitions with the inner wall 221c of the dehumidifying pipe section 22 to drain the condensed water more thoroughly, ensuring no residue. 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.

In some embodiments, the cold transfer dehumidification section 22 also defines a frost containing space 225 therein above the drain 226 and below the fin assembly 24, the frost containing space 225 being sized to be greater than a frost formation volume created by the fin assembly 24 between defrosting operations. Therefore, the frosting amount generated by the fin assembly 24 between two defrosting operations can be completely stored in the frost accommodating space 225, so that the frosting generated on the fin assembly 24 can be completely stripped, and the defrosting thoroughness of the fin assembly 24 is improved. The heating means 25 is further disposed at an area of the outer wall of the tube body 221 corresponding to the frost-containing space 225 to ensure that the frost in the frost-containing space 225 is completely melted, thereby further preventing the drain port 226 from being blocked by ice.

In some embodiments, the heating device 25 is further disposed outside the end portion of the air outlet pipe section 23 connected to the storage compartment 11, so as to prevent the air inlet 111 of the storage compartment 11 from being blocked by water vapor generated during defrosting of the fin assembly 24 when the air inlet 111 meets condensation and frosting, thereby preventing the dry air from being continuously introduced into the storage compartment 11 after the air inlet 111 is blocked, and thus preventing frosting. 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 is spirally wound on the outer wall of the air outlet pipe section 23 or attached to the outer wall of the air outlet pipe section 23. Since the outlet pipe section 23 is less likely to produce frost in the pipe section between the end connected to the storage compartment 11 and the cooling and dehumidifying pipe section 22, the heating device 25 outside the pipe section can be wound around the pipe section in a large spiral manner or directly attached to the outer pipe wall of the pipe section in a straight line.

In some embodiments, the cold transfer dehumidification section 22 further comprises at least one phase change energy storage unit 222 disposed outside the tubes 221 thereof to allow cold stored by the phase change energy storage unit 222 to be transferred through the tubes 221 to the fin assembly 24 in the cold transfer dehumidification section 22. It will be appreciated that each phase change energy storage unit 222 comprises a phase change energy storage material, and the phase change energy storage material can absorb and store cold energy from the refrigeration and freezing device 1 during one phase change process, release the cold energy stored in the phase change material during the other phase change process, and use the released cold energy to promote the moisture in the airflow circulating in the cold transfer and dehumidification pipe section 22 to condense on the fin assembly 24, so as to achieve the purpose of dehumidifying the airflow. 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.

Further, the heating device 25 is uniformly disposed on the outer wall of the tube 221 in at least other regions except for the region where the at least one phase change energy storage unit 222 is located. Therefore, the 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.

In some embodiments, the outer wall of the body of the cold transfer dehumidification segment 22 may include oppositely disposed forward and reverse

surfaces

2211 and 2212, and two lateral surfaces 2213 connected between the forward and reverse

surfaces

2211 and 2212. Wherein the outer surface of the cover 221b forms a forward surface 2211. The at least one phase change energy storage cell 222 is disposed on the reverse surface 2212 (since the reverse surface 2212 is disposed opposite to the inner container 13), and the heating devices 25 are uniformly arranged on the forward surface 2211 and in other regions of the two lateral surfaces 2213 except for the region adjacent to the phase change energy storage cell 222. That is, the heating device 25 is not disposed in at least a partial region of the opposite surface 2212 and regions 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.

Preferably, the heating devices 25 may also be uniformly arranged in other areas of the reverse surface 2212 than the area where the at least one phase change energy storage unit 222 is located. For example, the at least one phase change energy storage cell 222 may be disposed in a middle region of the reverse surface 2212, and the heating device 25 may also be disposed in an upper region of the reverse surface 2212 above the middle region thereof and in a lower region below the middle region thereof. Therefore, the heating devices 25 in the middle region of the front surface 2211 opposite to the at least one phase change energy storage unit 222 can be uniformly attached to the front surface 2211 in an S-shaped or U-shaped winding extending manner, and the heating devices 25 above and below the at least one phase change energy storage unit 222 can be uniformly wound on the outer wall of the tube body 221 of the cold and moisture transfer pipe section 22 in a spiral manner. Thus, the arrangement of the heating device 25 is not only simple and easy to operate, but also successfully avoids the phase change energy storage unit 222.

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 foaming and insulating layer. The cold transfer dehumidification pipe section 22 is in direct contact with the inner container 13, and is beneficial to condensing and dehumidifying airflow flowing through the inner container 13 by using cold energy of the inner container.

Preferably, the at least one phase change energy storage unit 222 is disposed on a side of the tube 221 facing the inner container 13, and is attached to the inner container 13 to store cold energy from 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 can 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 avoid the heat from being transferred to the storage compartment 11 through the inner container, thereby avoiding temperature fluctuation of the storage compartment 11 and energy consumption increase caused thereby.

In some embodiments, the at least one phase change energy storage unit 222 is disposed outside the pipe 221, and the cold energy stored in each phase change energy storage unit 222 is transmitted to the inside of the pipe 221 through the pipe 221 of the cold transfer dehumidification section 22, so as to condense and dehumidify the airflow inside the pipe 221, and it can be seen that the condensed water or frost generated by the cold transfer dehumidification section 22 is located inside the pipe 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.

Further, when the number of the phase change energy storage units 222 is two or more, the two or more phase change energy storage units 222 are independently disposed at different positions outside the pipe body 221, so that the air flowing through the cooling and dehumidifying pipe section 22 can be condensed and dehumidified at different positions, thereby improving the dehumidifying capability and dehumidifying efficiency of the air dehumidifying module 20.

Furthermore, more than two phase change energy storage units 222 may be arranged at intervals along the airflow flowing direction in the pipe 221 to sequentially perform at least two times of condensation and dehumidification on the airflow flowing from the external environment to the storage compartment 11, thereby further improving the dehumidification effect and the dehumidification capability of the airflow dehumidification module 20.

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.

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. 6 is a schematic cross-sectional view of a cold transfer dehumidification segment in accordance with one 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. 6, 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. 7 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. 7, 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 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 cold transfer dehumidification sections 22 may be one or more. Each cold transfer and dehumidification pipe section 22 is provided with a fin assembly 24 inside, and at least part of the outer wall of the pipe body of each cold transfer and dehumidification pipe section 22 is uniformly provided with a heating device 25 for promoting the frost formed by the fin assembly 24 inside the cold transfer and dehumidification pipe section 22 to melt.

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. 8 to 10 are schematic structural views of airflow dehumidification modules according to further various embodiments of the present invention. For ease of viewing, the heating device 25 is hidden in fig. 8 to 10. 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. 8 and 9). 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. 10). 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 and dehumidifying pipe sections 22 at the same time, so that the cooling and dehumidifying pipe section 20 has only one outlet end 26 (see the embodiment shown in fig. 9 and 10). 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. 8). 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. 8 to 10, each of the airflow dehumidification modules 20 includes two cooling-transfer dehumidification pipe sections 22, wherein one cooling-transfer dehumidification pipe section 22 is provided with two phase change energy storage units 222, and the other cooling-transfer dehumidification pipe section 22 is provided with one phase change energy storage unit 222. In other alternative embodiments, the number of the cooling dehumidification section 22 may also be one or more than three, and other numbers of the phase change energy storage units 222 may also be disposed in the cooling dehumidification section 22.

The invention also provides a refrigerating and freezing device 1 which is provided with a storage chamber 11 for storing articles. 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 with an access 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. The number of airflow dehumidification modules 20 may be one or more. 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, an end of airflow dehumidification module 20 in communication with the outside environment may extend to compressor compartment 12 and communicate with the outside environment through 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. 11 is a partial exploded view of the housing according to one 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 an end of the airflow dehumidification module 20 communicating with the external environment may extend above the water pan 80, so that the condensed water flowing out of 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 in the embodiments of the present invention to indicate orientation or positional relationship such as "upper", "lower", "inner", "outer", "transverse", "front", "rear", etc. are based on the actual usage state of the airflow dehumidification module 20 applied to the refrigeration and freezing apparatus 1, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the device or component referred to 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 illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

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

2. The airflow dehumidification module of claim 1,

the fin assembly comprises a plurality of fin channels formed by a plurality of condensation fins arranged at intervals in a separating mode, a first flow guide mechanism used for guiding and shunting airflow flowing to the fin assembly is arranged at an airflow inlet of the fin assembly, so that airflow passing through each fin channel is the same, and the surface area of each condensation fin used for frosting is the same, and the frosting amount of each condensation fin is the same.

3. The airflow dehumidification module of claim 2,

the plurality of condensing fins are arranged at intervals in a direction perpendicular to the airflow flowing direction in the airflow dehumidification module; each condensing fin comprises a fin main body extending straightly along the airflow flowing direction and a first flow deflector extending from a first end of the fin main body adjacent to the airflow inlet to the direction away from the fin main body, and a first preset included angle is formed between the first flow deflector and the fin main body; wherein

4. The airflow dehumidification module of claim 3,

an air flow inlet of the fin assembly is positioned in the middle of the fin assembly in the arrangement direction of the plurality of condensation fins; and is

5. The airflow dehumidification module of claim 1,

the cold transfer dehumidification pipe section further comprises at least one phase change energy storage unit arranged on the outer wall of the pipe body of the cold transfer dehumidification pipe section, so that cold energy stored by the phase change energy storage unit is allowed to be transferred to the fin assembly through the pipe body; and is

6. The airflow dehumidification module of claim 5,

the outer wall of the pipe body of the cold transfer dehumidification pipe section comprises a forward surface and a reverse surface which are oppositely arranged, and two lateral surfaces connected between the forward surface and the reverse surface; wherein

7. The airflow dehumidification module of claim 5,

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

8. The airflow dehumidification module of claim 1,

a water outlet is formed in the bottommost part, connected with the air inlet pipe section, of the cold transfer and dehumidification pipe section and used for discharging condensed water generated by the fin assembly to the air inlet pipe section; and is

9. The airflow dehumidification module of claim 1,

the heating device is also arranged on the outer side of the end part of the air outlet pipe section connected with the storage chamber;

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.