Air duct assembly and refrigeration equipment

Abstract

The invention belongs to the technical field of refrigeration equipment, and particularly relates to an air duct assembly and refrigeration equipment. The air duct assembly comprises a shell and at least one heat absorption part, a containing cavity is formed in the shell, an air inlet and an air outlet which communicate with the containing cavity are further formed in the shell, the at least one heat absorption part is arranged in the containing cavity, and the heat absorption part is configured to absorb heat in the containing cavity when the temperature in the containing cavity is larger than the set temperature. Wherein the set temperature is larger than or equal to the temperature of a storage chamber of the refrigeration equipment. According to the air duct assembly, heat generated during defrosting of the evaporator enters the air duct assembly along with the air flow, when the temperature of the air flow in the containing cavity is larger than the set temperature, the heat absorbing piece can absorb heat in the containing cavity, and therefore the temperature of the air flow in the containing cavity is reduced, and the temperature of the air flow flowing out of the air duct assembly is close to the set temperature; and the working requirements of the refrigeration equipment are met.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigeration equipment, and specifically relates to an air duct assembly and refrigeration equipment. Background Art

[0002] At present, the evaporator is an indispensable part in the operation of the refrigerator. The evaporator can exchange heat with the outside air, thereby reducing the temperature of the surrounding air. During the operation of the evaporator, the outside of the evaporator is prone to low-temperature frost. This frosting phenomenon is due to the low external temperature of the evaporator during heat exchange, and the air contains a large amount of moisture. The low temperature condenses the moisture in the air into frost and covers the outer surface of the evaporator, thereby reducing the heat exchange efficiency of the evaporator.

[0003] At present, the evaporator of air-cooled refrigerators generally adopts the defrosting method of electric heating, that is, a heater is arranged at the bottom of the evaporator, and the hot air flow generated by the heater when working generates natural convection between the evaporator and the evaporator, thereby accelerating the defrosting of the evaporator surface. However, when the heater defrosts the evaporator, a large amount of hot air is generated, and the hot air can enter the freezer through natural convection, thereby causing the air temperature in the freezer to rise and reducing the preservation effect of food. Summary of the invention

[0004] The purpose of the present application is to at least solve the problem that the heat generated by the evaporator during defrosting enters the freezing chamber and affects the freezing effect in the freezing chamber. This purpose is achieved by:

[0005] The first aspect of the present application provides an air duct assembly for a refrigeration device, comprising:

[0006] A housing, wherein a receiving cavity is formed inside the housing, and the housing is further formed with an air inlet and an air outlet communicated with the receiving cavity;

[0007] At least one heat absorbing member is disposed in the accommodating cavity, and the heat absorbing member is configured to absorb heat in the accommodating cavity when the temperature in the accommodating cavity is greater than a set temperature, wherein the set temperature is greater than or equal to the temperature of the storage compartment of the refrigeration device.

[0008] For the air duct assembly according to the present application, the external air flow of the housing enters the accommodation cavity through the air inlet and flows out of the accommodation cavity through the air outlet. During the process of the air flow passing through the accommodation cavity, if the temperature of the air flow is greater than the set temperature, the heat absorption member absorbs the temperature of the air flow to reduce the temperature of the air flow, so that the air flow flowing out of the air duct assembly approaches the set temperature to meet the working requirements of the refrigeration equipment. When the air duct assembly in the present application is used in the freezer of the refrigeration equipment, the heat generated during the defrosting of the evaporator enters the air duct assembly along with the air flow. When the temperature of the air flow in the accommodation cavity is greater than the set temperature, the heat absorption member can absorb the heat in the accommodation cavity, thereby reducing the temperature of the air flow in the accommodation cavity, and further making the air flow flowing out of the air duct assembly approach the set temperature to meet the working requirements of the refrigeration equipment.

[0009] In addition, the air duct assembly according to the present application may further have the following additional technical features:

[0010] In some embodiments of the present application, the heat absorption member includes a box body and a heat absorption medium disposed in the box body. The heat absorption medium is configured to undergo a phase change and absorb the heat in the accommodation cavity when the temperature of the box body is greater than the set temperature.

[0011] In some embodiments of the present application, the difference range between the set temperature and the temperature of the storage compartment of the refrigeration equipment is from 0°C to 10°C.

[0012] In some embodiments of the present application, the heat absorption member is spaced apart from the inner wall surface of the housing along the thickness direction of the housing.

[0013] In some embodiments of the present application, the air duct assembly further includes a fan assembly. The fan assembly is disposed in the accommodation cavity and is disposed opposite to the air inlet. An air outlet duct is formed between the fan assembly and the air outlet. The heat absorption member is thermally connected to the air outlet duct.

[0014] In some embodiments of the present application, the heat absorption member includes a first heat absorption member. The air outlet includes a first air outlet and a second air outlet. The first air outlet and the second air outlet are spaced apart along the length direction of the housing and are disposed at the bottom of the housing. A first air outlet duct is formed between the first air outlet and the fan assembly, and a second air outlet duct is formed between the second air outlet and the fan assembly. The first heat absorption member is disposed between the first air outlet duct and the second air outlet duct.

[0015] In some embodiments of the present application, the heat absorber further includes a second heat absorber and a third heat absorber. The second heat absorber and the third heat absorber are respectively disposed on both sides of the first heat absorber along the length direction of the housing. The first heat absorber and the second heat absorber are respectively disposed on both sides of the first air outlet duct, and the first heat absorber and the third heat absorber are respectively disposed on both sides of the second air outlet duct.

[0016] In some embodiments of the present application, at least one of the first heat absorber, the second heat absorber, and the third heat absorber forms a partial side wall of the air outlet duct.

[0017] In some embodiments of the present application, the air duct assembly further includes at least one rib plate. The at least one rib plate is disposed in the accommodation cavity and encloses at least one installation cavity with the inner wall of the housing. At least one of the first heat absorber, the second heat absorber, and the third heat absorber is disposed in the installation cavity, and the at least one rib plate forms a partial side wall of the air outlet duct.

[0018] A second aspect of the present application further provides a refrigeration device. The refrigeration device has the air duct assembly described in any one of the above. A freezer compartment is provided inside the refrigeration device. The air duct assembly is disposed in the freezer compartment. The freezer compartment further includes a freezer compartment liner, an evaporator, and a drawer. The evaporator, the air duct assembly, and the drawer are respectively disposed in the freezer compartment liner, and the air duct assembly is disposed between the evaporator and the drawer.

[0019] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the following specifically describes the specific embodiments of the present application. Description of the Drawings

[0020] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0021] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0022] Figure 1 It is a schematic structural diagram of a refrigeration device according to an embodiment of the present application;

[0023] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the freezer compartment in

[0024] Figure 3 is Figure 2 a schematic exploded structure diagram of the freezer compartment in

[0025] Figure 4 is Figure 3 a schematic exploded structure diagram of the air duct assembly in

[0026] Figure 5 is Figure 4 a schematic structure diagram of the first heat absorption member in

[0027] Figure 6 is Figure 4 a schematic structure diagram of the second heat absorption member in

[0028] Figure 7 is Figure 4 a schematic structure diagram of the third heat absorption member in

[0029] Figure 8 is Figure 2 a schematic structure diagram of the evaporator in

[0030] The reference numerals in the drawings are shown as follows:

[0031] 1, refrigeration equipment;

[0032] 10, box body; 11, refrigerating chamber; 12, freezer compartment; 121, freezer compartment liner; 122, back panel; 123, refrigerating air duct inlet; 124, refrigerating air duct outlet; 13, door body; 14, drawer;

[0033] 20, evaporator; 21, first side plate; 22, second side plate; 23, heat exchange tube; 24, heat exchange fin;

[0034] 30, heating element;

[0035] 40, air duct assembly;

[0036] 41, housing; 411, first housing part; 4111, air inlet; 4112, first air outlet duct; 4113, second air outlet duct; 4114, third air outlet duct; 4115, fourth air outlet duct; 4116, fifth air outlet; 412, second housing part; 4121, first air outlet; 4122, second air outlet; 4123, third air outlet; 4124, fourth air outlet; 4125, positioning groove;

[0037] 42. First heat absorption member; 421. First box body; 422. First protruding end; 423. First mounting cap; 424. First groove; 425. First guiding surface; 426. Second guiding surface; 427. Avoidance groove;

[0038] 43. Second heat absorption member; 431. Second box body; 432. Second protruding end; 433. Second mounting cap; 434. Second groove; 435. Third guiding surface; 436. Fourth guiding surface;

[0039] 44. Third heat absorption member; 441. Third box body; 442. Third protruding end; 443. Third mounting cap; 444. Third groove; 445. Fifth guiding surface; 446. Sixth guiding surface;

[0040] 45. Fan assembly;

[0041] 46. First rib plate;

[0042] 47. Second rib plate;

[0043] 48. Third rib plate;

[0044] 49. Heat absorption member;

[0045] 50. Support assembly; 51. Support beam; 52. Guide plate;

[0046] 60. Air guide cover. Detailed implementation manners

[0047] Hereinafter, the exemplary embodiments of the present application will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be completely conveyed to those skilled in the art.

[0048] It should be understood that the terms used herein are only for the purpose of describing specific exemplary embodiments and are not intended to be limiting. Unless otherwise clearly indicated in the context, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is explicitly stated. It should also be understood that additional or alternative steps can be used.

[0049] Although terms such as first, second, and third may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first" and "second" and other numerical terms do not imply an order or sequence when used in the present text. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0050] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented as "above" or "over" the other element or feature. Thus, the exemplary term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the present text are to be interpreted accordingly.

[0051] To solve the problem that the heat generated during the defrosting of the evaporator enters the freezer compartment and affects the freezing effect in the freezer compartment, the present application proposes an air duct assembly and a refrigeration device having the air duct assembly. The refrigeration device may be a refrigerator, an air conditioner, or other electrical appliances with refrigeration functions. For ease of description, the present application only takes the refrigeration device as a refrigerator for illustration. When the air duct assembly in the present application is used in the freezer compartment of the refrigeration device, the heat generated during the defrosting of the evaporator follows the air flow into the air duct assembly. When the temperature of the air flow in the accommodation cavity of the air duct assembly is greater than the set temperature, the temperature of the air flow in the accommodation cavity can be reduced, so that the air flow flowing out of the air duct assembly approaches the set temperature to meet the working requirements of the refrigeration device.

[0052] Combined with Figures 1 to 4As shown, in some embodiments of the present application, the air duct assembly 40 is used for a refrigeration device 1. The air duct assembly 40 includes a housing 41 and at least one heat absorber 49. An accommodation cavity is formed inside the housing 41. The housing 41 further forms an air inlet 4111 and an air outlet that communicate with the accommodation cavity. At least one heat absorber 49 is disposed in the accommodation cavity. The heat absorber 49 is configured to absorb the heat in the accommodation cavity when the temperature in the accommodation cavity is greater than a set temperature, where the set temperature is greater than or equal to the temperature of the storage compartment of the refrigeration device 1.

[0053] In some embodiments of the present application, the refrigeration device 1 can be a refrigerator. The refrigerator includes a cabinet 10, and the cabinet 10 forms the overall external structure of the refrigerator. A storage compartment can be formed inside the cabinet 10. The storage compartment includes a refrigerating chamber 11 and a freezing chamber 12, and the refrigerating chamber 11 and the freezing chamber 12 can be arranged in sequence along the vertical direction. Specifically, the refrigerating chamber 11 can be disposed above the freezing chamber 12. A door body 13 is provided at the entrance of the refrigerating chamber 11, and at least one drawer 14 is provided at the entrance of the freezing chamber 12. The air duct assembly 40 in the present application can be disposed in the freezing chamber 12. The temperature of the storage compartment refers to the freezing temperature in the freezing chamber 12 when the refrigerator is operating normally. The freezing chamber 12 further includes a freezing chamber liner 121, an evaporator 20, and a drawer 14. The evaporator 20, the air duct assembly 40, and the drawer 14 are respectively disposed inside the freezing chamber liner 121, and the air duct assembly 40 is disposed between the evaporator 20 and the drawer 14. When refrigeration is required, the evaporator 20 cools the nearby air, and the cooled air can enter the drawer 14 through the air duct assembly 40, so as to freeze the food in the drawer 14. During the operation of the evaporator 20, the low temperature near the evaporator 20 condenses the moisture in the air into frost and covers the outer surface of the evaporator 20, thereby reducing the heat exchange efficiency of the evaporator 20. In order to improve the heat exchange efficiency of the evaporator 20, when defrosting the surface of the evaporator 20 is required. At this time, the heating element 30 can be operated, and the heating element 30 heats the surrounding air. The heated air can heat the evaporator 20, thereby defrosting the evaporator 20. At the same time, the heated air flow can also enter the drawer 14 through the air inlet 4111 of the air duct assembly 40, thereby affecting the freezing effect of the food in the drawer 14. Therefore, a heat absorber 49 needs to be provided in the air duct assembly 40 to absorb the heat of the hot air flow in the accommodation cavity.

[0054] According to the air duct assembly 40 of the present application, the external air flow of the housing 41 enters the accommodation cavity through the air inlet 4111 and flows out of the accommodation cavity through the air outlet. The heat generated during the defrosting of the evaporator 20 follows the air flow into the air duct assembly 40. When the temperature of the air flow in the accommodation cavity is greater than the set temperature, the heat absorber 49 can absorb the heat in the accommodation cavity, thereby reducing the temperature of the air flow in the accommodation cavity, and further making the air flow flowing out of the air duct assembly 40 approach the set temperature to meet the working requirements of the refrigeration device 1.

[0055] In some embodiments of the present application, the housing 41 may include a first housing portion 411 and a second housing portion 412. The first housing portion 411 and the second housing portion 412 are connected to each other and define an accommodation cavity therebetween. By splitting the housing 41 into two parts, namely the first housing portion 411 and the second housing portion 412, it is convenient to arrange the heat absorption member 49 or other structural members in the accommodation cavity. In some embodiments of the present application, the first housing portion 411 and the second housing portion 412 may also be provided as an integral structure, and the heat absorption member 49 may be fixed inside the housing 41 before the housing 41 is formed. Among them, the first housing portion 411 is disposed close to the evaporator 20, and an air inlet 4111 is provided through the plate surface thereof. The second housing portion 412 is disposed close to the drawer 14, and an air outlet is provided on the plate surface thereof. Thus, the cold air flow passing through the evaporator 20 can enter the interior of the housing 41 through the air inlet 4111 and flow into the drawer 14 through the air outlet, so as to freeze the food in the drawer 14. In some embodiments of the present application, an air outlet may also be provided on the first housing portion 411, or an air outlet may be provided between the first housing portion 411 and the second housing portion 412.

[0056] Combined Figure 2 、 Figure 3 、 Figure 4 and Figure 8 As shown in FIGS., in some embodiments of the present application, the air duct assembly 40 further includes a fan assembly 45. The fan assembly 45 is disposed in the accommodation cavity and is disposed opposite to the air inlet 4111. An air outlet duct is formed between the fan assembly 45 and the air outlet, and the heat absorption member 49 is thermally connected to the air outlet duct.

[0057] In some embodiments of the present application, the fan assembly 45 can generate an air flow through its own operation, so as to continuously output the low-temperature air generated by the evaporator 20. Among them, the fan assembly 45 may be disposed above the evaporator 20 in the vertical direction. When the fan assembly 45 operates, the air flow near the evaporator 20 moves towards the direction of the air inlet 4111 under the negative pressure generated by the fan assembly 45, so as to be absorbed by the fan assembly 45 and output to the outside of the air duct assembly 40 through the air outlet duct. The heating member 30 is disposed below the evaporator 20 in the vertical direction. When the evaporator 20 needs to be defrosted, the heating member 30 heats the surrounding air, and the heated air flows upward to the evaporator 20 by natural convection, so as to defrost the evaporator 20. At the same time, the heated air can also flow into the air inlet 4111 by natural convection and enter the interior of the air duct assembly 40. Therefore, the heat absorption member 49 needs to be thermally connected to the air outlet duct, so as to absorb the heat in the air duct assembly 40.

[0058] Specifically, the evaporator 20 includes a first side plate 21 and a second side plate 22, and the first side plate 21 and the second side plate 22 are respectively arranged to extend along the height direction. And the plate surfaces of the first side plate 21 and the second side plate 22 are arranged opposite to each other along the length direction. The evaporator 20 further includes a heat exchange tube 23, and the heat exchange tube 23 is wound between the first side plate 21 and the second side plate 22 and is respectively connected to the first side plate 21 and the second side plate 22. A heat exchange medium, which can be a refrigerant, is provided inside the heat exchange tube 23. During the refrigeration process of the evaporator 20, the liquid refrigerant absorbs the heat outside the heat exchange tube 23 to form a gaseous state, and reduces the temperature of the air outside the heat exchange tube 23, thereby achieving the refrigeration effect. In some embodiments of the present application, in order to improve the heat exchange effect between the heat exchange tube 23 and the surrounding air, the evaporator 20 further includes heat exchange fins 24, and the heat exchange fins 24 are arranged outside the heat exchange tube 23, so as to increase the heat exchange area between the evaporator 20 and the surrounding air through the heat exchange fins 24 and improve the refrigeration efficiency of the evaporator 20.

[0059] In some embodiments of the present application, the fan assembly 45 can be completely arranged inside the air duct assembly 40, and the air inlet end of the fan assembly 45 is arranged opposite to the air inlet 4111. Alternatively, the fan assembly 45 can be partially arranged inside the air duct assembly 40, and the air inlet end of the fan assembly 45 extends out of the air duct assembly 40 through the air inlet 4111, so as to absorb the cold air generated by the evaporator 20.

[0060] Combined with Figures 1 to 4 As shown, in some embodiments of the present application, the heat absorption member 49 includes a first heat absorption member 42, the air outlet includes a first air outlet 4121 and a second air outlet 4122, the first air outlet 4121 and the second air outlet 4122 are arranged at intervals along the length direction of the housing 41 at the bottom of the housing 41, a first air outlet duct 4112 is formed between the first air outlet 4121 and the fan assembly 45, a second air outlet duct 4113 is formed between the second air outlet 4122 and the fan assembly 45, and the first heat absorption member 42 is arranged between the first air outlet duct 4112 and the second air outlet duct 4113.

[0061] In some embodiments of the present application, the first air outlet 4121 and the second air outlet 4122 are arranged at intervals along the length direction of the second housing part 412 at the bottom of the second housing part 412 and communicate with the drawer 14. By providing the first air outlet 4121 and the second air outlet 4122, cold air can be simultaneously input into the drawer 14 through the first air outlet 4121 and the second air outlet 4122, thereby improving the refrigeration effect in the drawer 14. Among them. A first air duct 4112 is formed between the first air outlet 4121 and the fan assembly 45, and a second air duct 4113 is formed between the second air outlet 4122 and the fan assembly 45. The first heat absorption member 42 is arranged between the first air duct 4112 and the second air duct 4113, so that the air flow in the first air duct 4112 and the second air duct 4113 can be simultaneously heat-absorbed and cooled by the first heat absorption member 42.

[0062] Combined with Figures 1 to 5 As shown, in some embodiments of the present application, the first heat absorption member 42 includes a first box body 421 and a heat absorption medium arranged in the first box body 421. The heat absorption medium is configured to undergo a phase change and absorb the heat in the accommodation cavity when the temperature of the first box body 421 is greater than the set temperature.

[0063] Since the first heat absorption member 42 is respectively thermally connected to the first air duct 4112 and the second air duct 4113, when the air flow temperature in the first air duct 4112 and the second air duct 4113 rises above the set temperature, the first box body 421 can also rise above the set temperature. When the temperature of the first box body 421 is greater than the set temperature, the heat absorption medium can undergo a phase change and absorb the heat in the accommodation cavity, thereby cooling the air flow in the first air duct 4112 and the second air duct 4113, so that the air flow discharged from the air duct assembly 40 to the drawer 14 meets the refrigeration requirements.

[0064] In some embodiments of the present application, the difference range between the set temperature and the temperature of the storage compartment is 0°C to 10°C, that is, the set temperature is 0°C to 10°C higher than the temperature of the storage compartment. In some embodiments of the present application, the operating temperature of the freezer 12 is -18°C. When the freezer 12 is affected by the hot air flow and the actual temperature inside the freezer 12 is higher than -18°C within a certain range, it will not have too much impact on the refrigeration effect of the freezer 12. Therefore, the set temperature can be set to be higher than the operating temperature of the freezer 12. Specifically, the range value of the set temperature can be -8°C to -18°C.

[0065] In some embodiments of the present application, the set temperature is greater than or equal to -16°C, that is, the minimum value of the set temperature can be -16°C. When the temperature of the first box body 421 is greater than the set temperature, that is, when the air flow temperatures in the first air outlet duct 4112 and the second air outlet duct 4113 are greater than -16°C, the heat-absorbing medium can undergo a phase change and absorb the heat in the accommodation cavity, thereby cooling the air flow in the first air outlet duct 4112 and the second air outlet duct 4113, so that the air flow discharged from the air duct assembly 40 to the drawer 14 meets the refrigeration requirements.

[0066] In some embodiments of the present application, the heat-absorbing medium may include organic phase change heat storage materials, such as paraffin wax. Alternatively, the heat-absorbing medium may include inorganic phase change heat storage materials, such as inorganic salts, specifically nitrates, carbonates, etc. Alternatively, the heat-absorbing medium may include composite phase change heat storage materials, such as PCM materials.

[0067] In some embodiments of the present application, the heat-absorbing medium includes solid inorganic salts, and the liquefaction phase change temperature of the solid inorganic salts is -16°C. When the temperature of the solid inorganic salts reaches -16°C, the solid inorganic salts can undergo a phase change, and during this process, it absorbs the surrounding ambient temperature, thereby achieving the temperature of heat absorption and cooling.

[0068] Combined with Figures 3 to 5 As shown, in some embodiments of the present application, the heat-absorbing member 49 is disposed at an interval from the inner wall surface of the housing 41 in the thickness direction of the housing 41.

[0069] Since the volume of the solid inorganic salts increases during the phase change process, it causes the expansion and deformation of the first box body 421. To reduce the deformation of the air duct assembly 40 caused by the expanded first box body 421 squeezing the housing 41, the first heat-absorbing member 42 is disposed at an interval from the inner wall surface of the housing 41 in the thickness direction of the housing 41, so that there is sufficient space in the housing 41 to accommodate the deformed first box body 421. Among them, the specific interval dimension between the first heat-absorbing member 42 and the inner wall surface of the housing 41 in the thickness direction of the housing 41 can be 1 mm - 5 mm.

[0070] Combined with Figure 4 and Figure 5As shown, in some embodiments of the present application, the top of the first box body 421 is further provided with a first protruding end 422 and a first mounting cap 423. The top of the first protruding end 422 is provided with a first liquid injection port (not shown in the figure). The inorganic salt solution can be poured into the interior of the first box body 421 through the first liquid injection port and solidified into solid inorganic salt. The first mounting cap 423 is connected to the first protruding end 422, and the specific connection method can be various connection methods such as screwing, clamping, or bonding, so as to block the first liquid injection port. The first box body 421 is further provided with a plurality of first grooves 424 arranged crosswise, and the plurality of first grooves 424 divide the first box body 421 into a plurality of interconnected storage cavities, so as to enhance the structural strength of the first box body 421 and reduce the deformation of the first box body 421.

[0071] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, the heat absorber 49 further includes a second heat absorber 43 and a third heat absorber 44. The second heat absorber 43 and the third heat absorber 44 are respectively arranged on both sides of the first heat absorber 42 along the length direction of the housing 41. The first heat absorber 42 and the second heat absorber 43 are respectively arranged on both sides of the first air outlet duct 4112, and the first heat absorber 42 and the third heat absorber 44 are respectively arranged on both sides of the second air outlet duct 4113.

[0072] In some embodiments of the present application, the second heat absorber 43 and the third heat absorber 44 respectively have the same function as the first heat absorber 42, and are also configured to absorb the heat in the accommodation cavity when the temperature in the accommodation cavity is greater than the set temperature, so as to achieve the effect of reducing the temperature of the airflow discharged from the air duct assembly 40. Among them, the first heat absorber 42 and the second heat absorber 43 are respectively arranged on both sides of the first air outlet duct 4112, so as to absorb and cool the airflow in the first air outlet duct 4112 jointly by the first heat absorber 42 and the second heat absorber 43. The first heat absorber 42 and the third heat absorber 44 are respectively arranged on both sides of the second air outlet duct 4113, so as to absorb and cool the airflow in the second air outlet duct 4113 jointly by the first heat absorber 42 and the third heat absorber 44.

[0073] Combined with Figures 3 to 7As shown, in some embodiments of the present application, the second heat absorber 43 includes a second box body 431 and a heat absorption medium disposed in the second box body 431. The heat absorption medium is configured such that when the temperature of the second box body 431 is greater than a set temperature, the heat absorption medium can undergo a phase change and absorb the heat in the accommodation cavity. The top of the second box body 431 is further provided with a second protruding end 432 and a second mounting cap 433. The top of the second protruding end 432 is provided with a second liquid injection port (not shown in the figure). The inorganic salt solution can be poured into the interior of the second box body 431 through the second liquid injection port and solidify into solid inorganic salt. The second mounting cap 433 is connected to the second protruding end 432, and the specific connection method can be various connection methods such as screwing, clamping, or bonding, so as to block the second liquid injection port. The second box body 431 is further provided with a plurality of second grooves 434 arranged in a crosswise manner. The plurality of second grooves 434 divide the second box body 431 into a plurality of interconnected storage cavities, thereby enhancing the structural strength of the second box body 431 and reducing the deformation of the second box body 431.

[0074] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, the third heat absorber 44 includes a third box body 441 and a heat absorption medium disposed in the third box body 441. The heat absorption medium is configured such that when the temperature of the third box body 441 is greater than a set temperature, the heat absorption medium can undergo a phase change and absorb the heat in the accommodation cavity. The top of the third box body 441 is further provided with a third protruding end 442 and a third mounting cap 443. The top of the third protruding end 442 is provided with a third liquid injection port (not shown in the figure). The inorganic salt solution can be poured into the interior of the third box body 441 through the third liquid injection port and solidify into solid inorganic salt. The third mounting cap 443 is connected to the third protruding end 442, and the specific connection method can be various connection methods such as screwing, clamping, or bonding, so as to block the third liquid injection port. The third box body 441 is further provided with a plurality of third grooves 444 arranged in a crosswise manner. The plurality of third grooves 444 divide the third box body 441 into a plurality of interconnected storage cavities, thereby enhancing the structural strength of the third box body 441 and reducing the deformation of the third box body 441.

[0075] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, at least one of the first heat absorber 42, the second heat absorber 43, and the third heat absorber 44 forms part of the side wall of the air outlet duct.

[0076] Specifically, the first heat absorber 42 is disposed below the fan assembly 45, the second heat absorber 43 and the third heat absorber 44 are respectively disposed on both sides of the fan assembly 45. A first air outlet duct 4112 is formed between the first heat absorber 42 and the second heat absorber 43, and the first air outlet duct 4112 is communicated with the first air outlet 4121. Among them, a first guiding surface 425 is provided on the side surface of the first heat absorber 42 facing the second heat absorber 43, and a third guiding surface 435 is provided on the side surface of the second heat absorber 43 facing the first heat absorber 42. The first guiding surface 425 and the third guiding surface 435 respectively form partial side walls of the first air outlet duct 4112, and the first guiding surface 425 and the third guiding surface 435 are respectively arc-shaped surfaces and are arranged smoothly, for jointly guiding the air flow in the first air outlet duct 4112 to flow towards the first air outlet 4121. During the process of the air flow in the first air outlet duct 4112 flowing towards the first air outlet 4121, it can respectively enter into heat exchange with the first guiding surface 425 and the third guiding surface 435, so as to jointly absorb the heat of the air flow in the first air outlet duct 4112 through the first heat absorber 42 and the second heat absorber 43, in order to achieve the temperature for cooling the air flow.

[0077] A second air outlet duct 4113 is formed between the first heat absorber 42 and the third heat absorber 44, and the second air outlet duct 4113 is communicated with the second air outlet 4122. Among them, a second guiding surface 426 is provided on the side surface of the first heat absorber 42 facing the third heat absorber 44, and a fifth guiding surface 445 is provided on the side surface of the third heat absorber 44 facing the first heat absorber 42. The second guiding surface 426 and the fifth guiding surface 445 respectively form partial side walls of the second air outlet duct 4113, the second guiding surface 426 and the fifth guiding surface 445 are respectively arc-shaped surfaces and are arranged smoothly, for jointly guiding the air flow in the second air outlet duct 4113 to flow towards the second air outlet 4122. During the process of the air flow in the second air outlet duct 4113 flowing towards the second air outlet 4122, it can respectively conduct heat exchange with the second guiding surface 426 and the fifth guiding surface 445, so as to jointly absorb the heat of the air flow in the second air outlet duct 4113 through the first heat absorber 42 and the third heat absorber 44, in order to achieve the temperature for cooling the air flow.

[0078] Combined with Figures 3 to 7As shown, in some embodiments of the present application, two third air outlets 4123 are further provided at intervals along the length direction at the top of the second housing portion 412. A third air duct 4114 is further formed between a part of the second heat absorbing member 43 and the fan assembly 45, and the third air duct 4114 communicates with one of the third air outlets 4123. A fourth air duct 4115 is further formed between a part of the third heat absorbing member 44 and the fan assembly 45, and the fourth air duct 4115 communicates with the other third air outlet 4123. Among them, a fourth guiding surface 436 is provided on the side surface of the second heat absorbing member 43 facing the fan assembly 45. The fourth guiding surface 436 forms part of the side wall of the third air duct 4114, and the fourth guiding surface 436 is an arc surface and is arranged in a smooth manner with the outer peripheral surface of the fan assembly 45, and is used to guide the air flow in the third air duct 4114 to flow towards one of the third air outlets 4123. A sixth guiding surface 446 is provided on the side surface of the third heat absorbing member 44 facing the fan assembly 45. The sixth guiding surface 446 forms part of the side wall of the fourth air duct 4115, and the sixth guiding surface 446 is an arc surface and is arranged in a smooth manner with the outer peripheral surface of the fan assembly 45, and is used to guide the air flow in the fourth air duct 4115 to flow towards the other third air outlet 4123.

[0079] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, two fourth air outlets 4124 are further provided at the middle position of the second housing portion 412 along the height direction, and the two fourth air outlets 4124 are arranged at intervals along the length direction of the housing 41. The two fourth air outlets 4124 are respectively communicated with the first air duct 4112 and the second air duct 4113, and part of the air flow in the first air duct 4112 and the second air duct 4113 can flow out to the outside of the air duct assembly 40 through the two fourth air outlets 4124.

[0080] Among them, the first air outlet 4121, the third air outlet 4123 and the fourth air outlet 4124 are respectively arranged at intervals along different heights of the housing 41, so as to be respectively communicated with the drawers 14 arranged at different heights, and are used to convey cold air to the drawers 14 arranged at different heights.

[0081] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, the air duct assembly 40 further includes at least one rib plate. The at least one rib plate is arranged in the accommodation cavity and encloses at least one installation cavity with the inner wall of the housing 41. At least one of the first heat absorbing member 42, the second heat absorbing member 43 and the third heat absorbing member 44 is arranged in the installation cavity, and the at least one rib plate forms part of the side wall of the air duct.

[0082] By forming an installation cavity between the rib plate and the housing 41, it is convenient to place the heat absorption member 49 in the installation cavity, thereby positioning and installing the heat absorption member. By forming partial side walls of the air duct with the rib plate, it is used to guide the flow direction of the air flow in the accommodation cavity, and the rib plate can exchange heat with the air flow in the air duct. At the same time, the heat absorption member 49 in the installation cavity can exchange heat with the rib plate, so as to realize the heat exchange between the heat absorption member 49 and the air flow in the accommodation cavity, and then absorb the heat of the air flow in the accommodation cavity, achieving the purpose of cooling the air flow.

[0083] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, at least one rib plate includes a first rib plate 46, a second rib plate 47, and a third rib plate 48. The two ends of the first rib plate 46 along the thickness direction of the housing 41 are respectively connected to the inner wall surfaces of the first housing part 411 and the second housing part 412, thereby forming a first installation cavity for accommodating the first heat absorption member 42. The first heat absorption member 42 is arranged in the first installation cavity and is thermally connected to the air flow in the accommodation cavity through the first rib plate 46. The outer shape of the first rib plate 46 matches the outer shape of the first heat absorption member 42, and a first diversion surface and a second diversion surface are formed, which respectively match the first guiding surface 425 and the second guiding surface 426.

[0084] The two ends of the second rib plate 47 along the thickness direction of the housing 41 are respectively connected to the inner wall surfaces of the first housing part 411 and the second housing part 412, thereby forming a second installation cavity for accommodating the second heat absorption member 43. The second heat absorption member 43 is arranged in the second installation cavity and is thermally connected to the air flow in the accommodation cavity through the second rib plate 47. The outer shape of the second rib plate 47 matches the outer shape of the second heat absorption member 43, and a third diversion surface and a fourth diversion surface are formed, which respectively match the third guiding surface 435 and the fourth guiding surface 436.

[0085] The two ends of the third rib plate 48 along the thickness direction of the housing 41 are respectively connected to the inner wall surfaces of the first housing part 411 and the second housing part 412, thereby forming a third installation cavity for accommodating the third heat absorption member 44. The third heat absorption member 44 is arranged in the third installation cavity and is thermally connected to the air flow in the accommodation cavity through the third rib plate 48. The outer shape of the third rib plate 48 matches the outer shape of the third heat absorption member 44, and a fifth diversion surface and a sixth diversion surface are formed, which respectively match the fifth guiding surface 445 and the sixth guiding surface 446.

[0086] Combined with Figures 1 to 4 As shown, in some embodiments of the present application, a return air outlet (not shown in the figure) communicating with the drawer 14 is further provided at the bottom of the air duct assembly 40. After the cold air exchanges heat with the food in the drawer 14, it can return to the bottom of the evaporator 20 through the return air outlet, and form a circulating cold air flow under the action of the evaporator 20 and the fan assembly 45, and is output to the drawer 14 again.

[0087] Combined Figures 1 to 4 As shown, in some embodiments of the present application, a fifth air outlet 4116 communicating with the accommodation cavity is further provided on the housing 41, so that a part of the cold air generated by the evaporator 20 is output to the refrigerating chamber 11 through the fifth air outlet 4116, and then the food in the refrigerating chamber 11 is refrigerated.

[0088] In some embodiments of the present application, a fifth air outlet 4116 is provided at the top of the first housing portion 411, and a refrigerating air duct inlet 123 and a refrigerating air duct outlet 124 are further provided at the top of the freezer liner 121. The refrigerating air duct inlet 123 is disposed opposite to the fifth air outlet 4116. Part of the cold air in the air duct assembly 40 can enter the refrigerating chamber 11 through the fifth air outlet 4116 and the refrigerating air duct inlet 123 in sequence. After the cold air exchanges heat with the food in the refrigerating chamber 11, it enters the freezer liner 121 through the refrigerating air duct outlet 124, and finally flows to the evaporator 20, and forms a circulating cold air flow under the action of the evaporator 20 and the fan assembly 45, and is output to the refrigerating chamber 11 and the freezer 12 again. Specifically, the refrigerating air duct inlet 123 and the refrigerating air duct outlet 124 are provided above the back plate 122.

[0089] Combined Figures 1 to 4 As shown, in some embodiments of the present application, a wind guiding cover 60 is further provided in the freezer liner 121, and the wind guiding cover 60 is disposed between the back plate 122 and the air duct assembly 40. The air flow flowing out of the refrigerating air duct outlet 124 is guided by the wind guiding cover 60 to flow to the bottom of the evaporator 20, so as to increase the contact area between this part of the air flow and the evaporator 20 during the refrigeration process of the evaporator 20 and improve the refrigeration efficiency of the evaporator 20.

[0090] Combined Figures 1 to 3 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a support assembly 50, and the support assembly 50 is disposed in the freezer liner 121 and is connected to the freezer liner 121. Among them, the support assembly 50 includes a support beam 51 and a guide plate 52. The support beam 51 is arranged in the vertical direction, and both ends of the support beam 51 in the vertical direction are fixedly connected to the freezer liner 121. One end of the guide plate 52 in the pulling direction of the drawer 14 is connected to the support beam 51, and the other end is connected to the housing 41. A slide rail extending in the pulling direction of the drawer 14 is provided on the guide plate 52, and a sliding groove slidably connected to the slide rail is provided on the side surface of the drawer 14, and the slide rail is inserted into the sliding groove, so as to realize the sliding connection between the drawer 14 and the guide plate 52, and further realize the pulling action of the drawer 14.

[0091] Wherein, a positioning groove 4125 is recessed on the surface of the housing 41 facing the guide plate 52, that is, the positioning groove 4125 is recessed on the surface of the second housing part 412. The end of the guide plate 52 can be inserted into the positioning groove 4125, so as to realize the fixed connection between the guide plate 52 and the housing 41. Since the positioning groove 4125 is recessed on the second housing part 412, a relief groove 427 is recessed on the first box body 421 of the first heat absorbing member 42. The relief groove 427 is disposed opposite to the positioning groove 4125, and a part of the positioning groove 4125 can be inserted into the relief groove 427, so as to realize the setting of the positioning groove 4125 without increasing the thickness of the housing 41.

[0092] Combined with Figures 1 to 8 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a condenser (not shown in the figure) and a compressor (not shown in the figure). The evaporator 20, the condenser and the compressor together form the refrigeration system of the refrigeration device 1. Among them, the compressor is used to compress the refrigerant into a high-temperature and high-pressure gas. The condenser is used to cool the high-temperature and high-pressure gaseous refrigerant into a high-pressure liquid, and a large amount of heat is released in this process. The evaporator 20 absorbs the surrounding heat and converts the refrigerant from a liquid state to a gaseous state, thereby reducing the surrounding ambient temperature. During the operation of the refrigeration device 1, the refrigerant continuously circulates and flows between the compressor, the condenser and the evaporator 20, so as to achieve the refrigeration effect.

[0093] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air duct assembly for a refrigeration device, characterized in that, Comprising: A housing, an accommodation chamber is formed inside the housing, and the housing is further formed with an air inlet and an air outlet communicating with the accommodation chamber; At least one heat absorber, the at least one heat absorber is disposed in the accommodation chamber, and the heat absorber is configured to absorb heat in the accommodation chamber when the temperature in the accommodation chamber is greater than a set temperature, wherein the set temperature is greater than or equal to the temperature of the storage compartment of the refrigeration device.

2. The air duct assembly according to claim 1, characterized in that, The heat absorber includes a box body and a heat-absorbing medium disposed in the box body, and the heat-absorbing medium is configured to undergo a phase change and absorb heat in the accommodation chamber when the temperature of the box body is greater than the set temperature.

3. The air duct assembly according to claim 2, wherein, The difference range between the set temperature and the temperature of the storage compartment of the refrigeration device is from 0°C to 10°C.

4. The air duct assembly according to claim 1, wherein The heat absorber is spaced apart from the inner wall surface of the housing along the thickness direction of the housing.

5. The air duct assembly according to any one of claims 1 to 4, characterized in that The air duct assembly further includes a fan assembly, the fan assembly is disposed in the accommodation chamber and is opposite to the air inlet, an air outlet duct is formed between the fan assembly and the air outlet, and the heat absorber is thermally connected to the air outlet duct.

6. The air duct assembly according to claim 5, characterized in that, The heat absorber includes a first heat absorber, the air outlet includes a first air outlet and a second air outlet, the first air outlet and the second air outlet are spaced along the length direction of the housing and are disposed at the bottom of the housing, a first air outlet duct is formed between the first air outlet and the fan assembly, a second air outlet duct is formed between the second air outlet and the fan assembly, and the first heat absorber is disposed between the first air outlet duct and the second air outlet duct.

7. The air duct assembly according to claim 6, wherein The heat absorber further includes a second heat absorber and a third heat absorber, the second heat absorber and the third heat absorber are respectively disposed on both sides of the first heat absorber along the length direction of the housing, the first heat absorber and the second heat absorber are respectively disposed on both sides of the first air outlet duct, and the first heat absorber and the third heat absorber are respectively disposed on both sides of the second air outlet duct.

8. The air duct assembly according to claim 7, characterized in that, At least one of the first heat absorber, the second heat absorber, and the third heat absorber forms a partial side wall of the air outlet duct.

9. The air duct assembly according to claim 7, wherein, The air duct assembly further includes at least one rib plate, the at least one rib plate is disposed in the accommodation chamber and encloses at least one installation cavity with the inner wall of the housing, at least one of the first heat absorber, the second heat absorber, and the third heat absorber is disposed in the installation cavity, and the at least one rib plate forms a partial side wall of the air outlet duct.

10. A refrigeration device, characterized in that, Having the air duct assembly according to any one of claims 1 to 9, a freezer is provided inside the refrigeration device, the air duct assembly is disposed in the freezer, the freezer further includes a freezer liner, an evaporator, and a drawer, the evaporator, the air duct assembly, and the drawer are respectively disposed in the freezer liner, and the air duct assembly is disposed between the evaporator and the drawer.

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