Heat exchanger assembly and refrigeration equipment

Abstract

The invention belongs to the technical field of electrical equipment, and particularly relates to a heat exchanger assembly and refrigeration equipment. The heat exchanger assembly comprises a heat exchanger body and at least one baffle assembly, a heat exchange area is formed in the heat exchanger body, each baffle assembly comprises a first baffle and a second baffle which are arranged in the first direction in a spaced mode, and the first baffle and the second baffle intersect with the heat exchange area. The heat exchange area is divided into a first heat exchange area, a second heat exchange area and a third heat exchange area which are sequentially arranged in the first direction, at least part of the structure of the first baffle and at least part of the structure of the second baffle are arranged in an overlapped mode in the second direction, and airflow in the heat exchange area is configured to sequentially flow along the first heat exchange area, the second heat exchange area and the third heat exchange area; wherein the first heat exchange area forms the air inlet end of the heat exchanger body, the first direction and the second direction intersect, and the first direction is the length direction of the heat exchanger body. According to the heat exchanger assembly, the flowing path of airflow is prolonged, and the heat exchange efficiency of the heat exchanger assembly is improved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to a heat exchanger assembly and a refrigeration device. Background Art

[0002] At present, the heat exchanger is an indispensable component in the operation of air conditioners and refrigerators. The heat exchanger can exchange heat with the outside air, thereby reducing the temperature of the surrounding air.

[0003] The heat exchange method of the existing heat exchanger generally is that the air flow flows through the heat exchanger along the height direction of the heat exchanger, and heat exchange between the air flow and the heat exchanger is achieved during this process. Due to the limited height dimension of the heat exchanger, the heat exchange path between the air flow and the heat exchanger is short, and the heat exchange is insufficient, thereby reducing the heat exchange efficiency of the heat exchanger. Summary of the Invention

[0004] The purpose of this application is to at least solve the problem of low heat exchange efficiency of the heat exchanger. This purpose is achieved by the following means:

[0005] A first aspect of this application provides a heat exchanger assembly, which includes:

[0006] A heat exchanger body, which forms a heat exchange area;

[0007] At least one baffle assembly, the baffle assembly includes a first baffle and a second baffle arranged at intervals in a first direction. The first baffle and the second baffle are respectively arranged crosswise with the heat exchange area, and divide the heat exchange area into a first heat exchange area, a second heat exchange area and a third heat exchange area arranged in sequence along the first direction. At least part of the structure of the first baffle and at least part of the structure of the second baffle overlap along a second direction, and configure the air flow in the heat exchange area to flow sequentially along the first heat exchange area, the second heat exchange area and the third heat exchange area;

[0008] Wherein, the first heat exchange area forms the air inlet end of the heat exchanger body, the first direction intersects with the second direction, and the first direction is the length direction of the heat exchanger body.

[0009] For the heat exchanger assembly according to the present application, by crossing the first baffle and the second baffle with the heat exchange area respectively, the heat exchange area is divided into a first heat exchange area, a second heat exchange area, and a third heat exchange area arranged in sequence along the first direction, and the first heat exchange area forms the air inlet end of the heat exchanger body. The air flow outside the heat exchanger body enters the heat exchange area through the first heat exchange area and flows along the first baffle. When the flow path of the air flow in the first heat exchange area exceeds the first baffle, it enters the second heat exchange area. Since at least part of the structure of the first baffle and at least part of the structure of the second baffle overlap along the second direction, the air flow entering the second heat exchange area continues to flow along the second baffle. When the flow path of the air flow in the second heat exchange area exceeds the second baffle, it enters the third heat exchange area, thereby extending the flow path of the air flow in the heat exchange area, increasing the heat exchange area and heat exchange time between the air flow and the heat exchange area, and further improving the heat exchange efficiency of the heat exchanger assembly.

[0010] In addition, the heat exchanger assembly according to the present application may further have the following additional technical features:

[0011] In some embodiments of the present application, the first baffle includes a first insertion portion and a first extension portion connected to each other. The first insertion portion is inserted between the first heat exchange area and the second heat exchange area, and the first extension portion extends outside the heat exchange area along the second direction. An air inlet end is formed between the first extension portion and the heat exchanger body.

[0012] In some embodiments of the present application, the second baffle includes a second insertion portion and a second extension portion connected to each other. The second insertion portion is inserted between the second heat exchange area and the third heat exchange area, and the second extension portion extends outside the heat exchange area along the second direction. And the second extension portion and the first extension portion are respectively arranged on both sides of the heat exchange area along the second direction.

[0013] In some embodiments of the present application, the first insertion portion has a first end facing away from the first extension portion. Along the first direction, the first end has a first projection in the plane of the second baffle, and the first projection is located on the second baffle. The second insertion portion has a second end facing away from the second extension portion. Along the first direction, the second end has a second projection in the plane of the first baffle, and the second projection is located on the first baffle.

[0014] In some embodiments of the present application, along the second direction, the first insertion portion has a dimension H1, the second insertion portion has a dimension H2, and the heat exchange area has a dimension H3, where H1 is equal to H3 and H2 is less than H3.

[0015] In some embodiments of the present application, along the third direction, the two side edges of the first baffle are flush with or extend beyond the two side edges of the heat exchange area, and / or, along the third direction, the two side edges of the second baffle are flush with or extend beyond the two side edges of the heat exchange area, where the third direction is perpendicular to the first direction and the second direction respectively.

[0016] In some embodiments of the present application, the baffle assembly further includes at least one third baffle. The first baffle, the second baffle, and the at least one third baffle are sequentially arranged at intervals along the first direction. The third baffle intersects with the heat exchange area, and the third baffle partially overlaps with the adjacent baffle along the second direction.

[0017] In some embodiments of the present application, the number of the at least one baffle assembly is two, and the two baffle assemblies are symmetrically arranged on the heat exchange area along the first direction.

[0018] A second aspect of the present application further provides a refrigeration device. The refrigeration device has the heat exchanger assembly described in any one of the above. The refrigeration device further includes an air duct assembly. The air duct assembly is provided with an air inlet and an air return opening. The air inlet is communicated with the third heat exchange area, and the air return opening is communicated with the first heat exchange area.

[0019] In some embodiments of the present application, the refrigeration device includes a refrigerator. The refrigerator includes a freezer compartment, and the heat exchanger assembly is arranged in the freezer compartment.

[0020] 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 objects, features, and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. Description of the Drawings

[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] 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:

[0023] Figure 1 Schematic structural diagram of a refrigeration device according to an embodiment of the present application;

[0024] Figure 2 is Figure 1 Top view of the freezer compartment in

[0025] Figure 3 is Figure 2 Schematic cross-sectional structure diagram of the A-A section of the freezer compartment in

[0026] Figure 4 is Figure 3 Schematic relative position structure diagram of the heat exchanger assembly and the air duct assembly in

[0027] Figure 5 is Figure 4 Axonometric view of the heat exchanger assembly in

[0028] Figure 6 is Figure 5 Front view of the heat exchanger assembly in

[0029] Figure 7 is Figure 4 Schematic disassembled structure diagram of the air duct assembly in

[0030] Figure 8 is Figure 4 Schematic structure diagram of the water collecting box in

[0031] The reference numerals in the drawings are as follows:

[0032] 1, Refrigeration device;

[0033] 10, Box body; 11, Refrigerating compartment; 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;

[0034] 20, Heat exchanger assembly; 21, Heat exchanger body; 211, First mounting plate; 212, Second mounting plate; 213, Heat exchange tube; 214, Heat exchange area; 2141, First heat exchange area; 2142, Second heat exchange area; 2143, Third heat exchange area; 215, Heat exchange fin; 22, Baffle assembly; 221, First baffle; 2211, First plug-in part; 2212, First protruding part; 222, Second baffle; 2221, Second plug-in part; 2222, Second protruding part; 23, Water collecting box; 231, First side plate; 232, Second side plate; 233, Third side plate; 234, Bottom plate; 2341, Water leakage port; 24, Heating element;

[0035] 30. Air duct assembly; 31. First housing part; 311. Air inlet; 312. Rib plate; 3121. First air outlet duct; 3122. Second air outlet duct; 313. Third air outlet; 314. First air return opening; 315. Second air return opening; 32. Second housing part; 321. First air outlet; 322. Second air outlet; 323. First wind deflector; 324. Second wind deflector;

[0036] 40. Fan assembly. Detailed implementation manners

[0037] The exemplary embodiments of the present application will be described in more detail below 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 fully conveyed to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing specific exemplary embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, 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 particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. 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 used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0040] For ease of description, spatial relative relation terms may be used in the text to describe the relationship of one element or feature shown in the figure with respect to another element or feature. These relative relation terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relation terms are intended to include different orientations of the device in use or operation in addition to the orientations depicted in the figure. For example, if the device in the figure 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. Therefore, the exemplary term "below" can include both upward and downward orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relation descriptors used in the text are accordingly interpreted.

[0041] To solve the problem of low heat exchange efficiency of the heat exchanger, the present application proposes a heat exchanger assembly and a refrigeration device having the heat exchanger assembly. The refrigeration device may be a refrigerator, an air conditioner or other electrical devices with refrigeration functions. For convenience of description, the present application only takes the refrigeration device as a refrigerator for illustration. According to the heat exchanger assembly of the present application, the flow path of the air flow in the heat exchange area can be extended, the heat exchange area and the heat exchange time between the air flow and the heat exchange area are increased, and thus the heat exchange efficiency of the heat exchanger assembly is improved.

[0042] Combined Figures 1 to 6 As shown in the figure, in some embodiments of the present application, the heat exchanger assembly 20 is used for a refrigeration device 1 and includes a heat exchanger body 21 and at least one baffle assembly 22. The heat exchanger body 21 forms a heat exchange area 214. The baffle assembly 22 includes a first baffle 221 and a second baffle 222 spaced apart along a first direction. The first baffle 221 and the second baffle 222 are respectively disposed crosswise to the heat exchange area 214 and divide the heat exchange area 214 into a first heat exchange area 2141, a second heat exchange area 2142 and a third heat exchange area 2143 arranged in sequence along the first direction. At least a part of the structure of the first baffle 221 and at least a part of the structure of the second baffle 222 overlap along a second direction, and the air flow in the heat exchange area 214 is configured to flow sequentially through the first heat exchange area 2141, the second heat exchange area 2142 and the third heat exchange area 2143; wherein, the first heat exchange area 2141 forms the air inlet end of the heat exchanger body 21, the first direction intersects with the second direction, and the first direction is the length direction of the heat exchanger body 21.

[0043] In some embodiments of the present application, the heat exchange area 214 is the area where the heat exchanger body 21 exchanges heat with the air flow. The heat exchanger body 21 includes a first mounting plate 211 and a second mounting plate 212. The plate surfaces of the first mounting plate 211 and the second mounting plate 212 are arranged opposite to each other along a first direction, and the first direction can be the horizontal direction, specifically, the length direction of the heat exchanger body 21. Moreover, the first mounting plate 211 and the second mounting plate 212 are respectively arranged to extend along a second direction, and the second direction can be the vertical direction. The heat exchanger body 21 further includes a plurality of heat exchange tubes 213 that are sequentially connected in communication. The plurality of heat exchange tubes 213 are respectively arranged to extend along the first direction, and the plurality of heat exchange tubes 213 are arranged at intervals along the second direction. The plurality of heat exchange tubes 213 form the heat exchange area 214. Among them, the axial direction of the heat exchange tube 213 is the length direction of the heat exchanger body 21. The two ends of the heat exchange tube 213 can be respectively connected to the first mounting plate 211 and the second mounting plate 212, and adjacent heat exchange tubes 213 are connected by an arc-shaped pipeline, so that the plurality of heat exchange tubes 213 as a whole form a serpentine pipeline structure. In some embodiments of the present application, the heat exchanger body 21 can be an evaporator or a condenser. A heat exchange medium can be provided in the heat exchange tube 213, and the heat exchange medium can be a refrigerant. During the refrigeration process of the heat exchanger body 21, the liquid refrigerant absorbs the heat outside the heat exchange tube 213 to form a gaseous state, and reduces the temperature of the air outside the heat exchange tube 213, thereby achieving the refrigeration effect. In order to improve the heat exchange effect between the heat exchange tube 213 and the surrounding air, in some embodiments of the present application, the heat exchanger body 21 further includes heat exchange fins 215. The heat exchange fins 215 are arranged outside the heat exchange tube 213, so as to increase the heat exchange area between the heat exchanger body 21 and the surrounding air through the heat exchange fins 215, and improve the refrigeration efficiency of the heat exchanger body 21.

[0044] The first baffle 221 and the second baffle 222 are respectively arranged to intersect with the heat exchange area 214, that is, the first baffle 221 and the second baffle 222 are respectively arranged to intersect with the heat exchange tubes 213. Specifically, the heat exchange tubes 213 can be perpendicular to the first baffle 221 and the second baffle 222 and penetrate through the first baffle 221 and the second baffle 222, so as to fix the first baffle 221 and the second baffle 222 on the heat exchanger body 21, thereby facilitating the overall installation of the heat exchanger assembly 20.

[0045] In some embodiments of the present application, a first heat exchange area 2141 is formed between the first baffle 221 and the first mounting plate 211, a second heat exchange area 2142 is formed between the first baffle 221 and the second baffle 222, and a third heat exchange area 2143 is formed on the side of the second baffle 222 away from the first baffle 221. The air flow outside the heat exchanger body 21 enters the heat exchange area 214 through the first heat exchange area 2141 and flows along the first baffle 221. When the flow path of the air flow in the first heat exchange area 2141 exceeds the first baffle 221, it enters the second heat exchange area 2142. Since at least part of the structure of the first baffle 221 and at least part of the structure of the second baffle 222 are overlapped along the second direction, the air flow entering the second heat exchange area 2142 continues to flow along the second baffle 222. When the flow path of the air flow in the second heat exchange area 2142 exceeds the second baffle 222, it enters the third heat exchange area 2143, thereby extending the flow path of the air flow in the heat exchange area 214, increasing the heat exchange area and heat exchange time between the air flow and the heat exchange area 214, and further improving the heat exchange efficiency of the heat exchanger assembly 20. Among them, the flow direction of the air flow in the heat exchange area 214 is as Figure 6 shown by the black straight arrow direction in

[0046] Combined with Figures 1 to 4 shown, in some embodiments of the present application, the refrigeration device 1 can be a refrigerator. The refrigerator includes a box body 10, and the box body 10 forms the overall appearance structure of the refrigerator. A refrigerating chamber 11 and a freezing chamber 12 can be formed inside the box body 10, 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 arranged 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 freezing chamber 12 includes a freezing chamber liner 121, a heat exchanger assembly 20, an air duct assembly 30, and a drawer 14. The heat exchanger assembly 20, the air duct assembly 30, and the drawer 14 are respectively arranged inside the freezing chamber liner 121, and the air duct assembly 30 is arranged between the heat exchanger assembly 20 and the drawer 14. When refrigeration is required, the heat exchanger assembly 20 cools the nearby air, and the cooled air can enter the drawer 14 through the air duct assembly 30, so as to freeze the food in the drawer 14.

[0047] In some embodiments of the present application, the air duct assembly 30 includes an air inlet 311 and an air outlet. A fan assembly 40 is further arranged inside the air duct assembly 30. The air inlet end of the fan assembly 40 is arranged opposite to the air inlet 311, and an air outlet duct is formed between the air outlet end of the fan assembly 40 and the air outlet.

[0048] Combined with Figures 1 to 4As shown, in some embodiments of the present application, the fan assembly 40 can generate an air flow through its own operation, so as to continuously output the low-temperature air generated by the heat exchanger assembly 20. Among them, the air inlet end of the fan assembly 40 can be arranged above the heat exchanger body 21 in the vertical direction and is arranged opposite to the third heat exchange area 2143, and the third heat exchange area 2143 forms the air outlet end of the heat exchange area. When the fan assembly 40 operates, the air near the heat exchanger body 21 enters the heat exchange area 214 under the negative pressure generated by the fan assembly 40, and successively passes through the first heat exchange area 2141, the second heat exchange area 2142 and the third heat exchange area 2143, and finally enters the air duct assembly 30 through the air inlet end of the fan assembly 40 and is discharged into the drawer 14 through the air outlet of the air duct assembly 30 for freezing the food in the drawer 14.

[0049] In some embodiments of the present application, the fan assembly 40 can be completely arranged in the air duct assembly 30, and the air inlet end of the fan assembly 40 is arranged opposite to the air inlet 311. Alternatively, the fan assembly 40 can be partially arranged in the air duct assembly 30, and the air inlet end of the fan assembly 40 extends out of the air duct assembly 30 through the air inlet 311 to absorb the cold air generated by the heat exchanger assembly 20.

[0050] Combined with Figure 5 and Figure 6 As shown, in some embodiments of the present application, the first baffle 221 includes a connected first insertion portion 2211 and a first extension portion 2212. The first insertion portion 2211 is inserted between the first heat exchange area 2141 and the second heat exchange area 2142. The first extension portion 2212 extends out of the heat exchange area 214 in the second direction, and an air inlet end is formed between the first extension portion 2212 and the heat exchanger body 21.

[0051] In some embodiments of the present application, the first insertion portion 2211 is inserted into the heat exchange area 214 and divides a part of the heat exchange area 214 into a first heat exchange area 2141 and a second heat exchange area 2142. The first extension portion 2212 extends downward in the second direction below the heat exchange area 214, and an air inlet end is formed between the first extension portion 2212 and the first mounting plate 211. The air flow outside the heat exchanger body 21 enters the heat exchange area 214 through the first heat exchange area 2141. Due to the blocking effect of the first baffle 221, the air flow in the first heat exchange area 2141 cannot directly enter the second heat exchange area 2142, but flows upward along the first baffle 221 and enters the second heat exchange area 2142 from above the first baffle 221, thereby extending the flow path of the air flow in the heat exchange area 214.

[0052] Combined with Figure 5 and Figure 6As shown, in some embodiments of the present application, the second baffle 222 includes a second plug-in portion 2221 and a second extending portion 2222 that are connected to each other, the second plug-in portion 2221 is plugged between the second heat exchange zone 2142 and the third heat exchange zone 2143, the second extending portion 2222 extends to the outside of the heat exchange zone 214 along the second direction, and the second extending portion 2222 and the first extending portion 2212 are respectively arranged on both sides of the heat exchange zone 214 along the second direction.

[0053] In some embodiments of the present application, the second plug-in portion 2221 is plugged into the heat exchange zone 214, and a portion of the heat exchange zone 214 is divided into a second heat exchange zone 2142 and a third heat exchange zone 2143. The second extension portion 2222 extends upward along the second direction to the top of the heat exchange zone 214, and forms an air outlet of the heat exchange zone 214 on the side of the second baffle 222 away from the first baffle 221. After the airflow enters the second heat exchange zone 2142 from the first heat exchange zone 2141, due to the shielding effect of the second baffle 222, it cannot directly enter the third heat exchange zone 2143, but flows along the second baffle 222, and enters the third heat exchange zone 2143 from the bottom of the second baffle 222, thereby extending the flow path of the airflow in the heat exchange zone 214.

[0054] Combination Figure 5 and Figure 6 As shown, in some embodiments of the present application, the first plug-in portion 2211 has a first end facing away from the first protruding portion 2212, and along the first direction, the first end has a first projection in the plane where the second baffle 222 is located, and the first projection is located on the second baffle 222, and the second plug-in portion 2221 has a second end facing away from the second protruding portion 2222, and along the first direction, the second end has a second projection in the plane where the first baffle 221 is located, and the second projection is located on the first baffle 221.

[0055] In some embodiments of the present application, by setting the projection of the first end of the first plug-in portion 2211 on the plane where the second baffle 222 is located within the range of the second baffle 222, and setting the projection of the second end of the second plug-in portion 2221 on the plane where the first baffle 221 is located within the range of the first baffle 221, a portion of the first baffle 221 and a portion of the second baffle 222 are overlapped along the second direction, so that the airflow in the second heat exchange zone 2142 cannot flow directly to the third heat exchange zone 2143, but needs to flow along the second baffle 222 for a certain path, and then exceed the second end of the second baffle 222 to enter the third heat exchange zone 2143, thereby extending the flow path of the airflow in the heat exchange zone 214.

[0056] In some embodiments of the present application, the first end of the first plugging portion 2211 may be flush with the upper end of the heat exchange area 214, that is, the dimension of the first plugging portion 2211 in the second direction is consistent with the dimension of the heat exchange area 214 in the second direction. The second end of the second plugging portion 2221 is disposed between the upper end and the lower end of the heat exchange area 214, that is, the dimension of the second plugging portion 2221 in the second direction is smaller than the dimension of the heat exchange area 214 in the second direction.

[0057] Combined with Figure 5 and Figure 6 As shown, in some embodiments of the present application, along the second direction, the first plugging portion 2211 has a dimension H1, the second plugging portion 2221 has a dimension H2, and the heat exchange area 214 has a dimension H3, where H1 is equal to H3 and H2 is less than H3.

[0058] Setting H1 equal to H3, that is, the dimension of the first plugging portion 2211 in the second direction is equal to the dimension of the heat exchange area 214, so that the air flow in the first heat exchange area 2141 can flow into the second heat exchange area 2142 after being in full contact with the first heat exchange area 2141 along the second direction. Setting H2 less than H3, that is, the dimension of the second plugging portion 2221 in the second direction is smaller than the dimension of the heat exchange area 214, so that the air flow in the second heat exchange area 2142 can flow to the third heat exchange area 2143 through the inside of the heat exchange area 214, reducing the occurrence of the phenomenon that the air flow flowing out of the second heat exchange area 2142 flows back to the first heat exchange area 2141 below the heat exchange area 214. Specifically, 1 / 2H3 ≤ H2 < H3.

[0059] Combined with Figure 5 and Figure 6 As shown, in some embodiments of the present application, along the third direction, the two side edges of the first baffle 221 are flush with or extend beyond the two side edges of the heat exchange area 214, and / or, along the third direction, the two side edges of the second baffle 222 are flush with or extend beyond the two side edges of the heat exchange area 214, where the third direction is perpendicular to the first direction and the second direction respectively.

[0060] In some embodiments of the present application, the third direction may be the thickness direction of the heat exchanger body 21, and the thickness direction is perpendicular to the length direction and the height direction of the heat exchanger body 21. By arranging the two side edges of the first baffle 221 flush with or extending beyond the two side edges of the heat exchange area 214 along the third direction, the air flow in the first heat exchange area 2141 flowing into the second heat exchange area 2142 through the two sides of the first baffle 221 can be reduced. By arranging the two side edges of the second baffle 222 flush with or extending beyond the two side edges of the heat exchange area 214 along the third direction, the air flow in the second heat exchange area 2142 flowing into the third heat exchange area 2143 through the two sides of the second baffle 222 can be reduced.

[0061] Combined with Figure 5 and Figure 6 As shown, in some embodiments of the present application, the baffle assembly 22 further includes at least one third baffle (not shown in the figure). The first baffle 221, the second baffle 222, and at least one third baffle are sequentially arranged at intervals along the first direction. The third baffle is arranged in a cross manner with the heat exchange area 214, and the third baffle partially overlaps with the adjacent baffle along the second direction.

[0062] In some embodiments of the present application, at least one third baffle may be arranged on the side of the second baffle 222 away from the first baffle 221. By overlapping a part of the third baffle with the adjacent baffle along the second direction, the flow path of the air flow in the heat exchange area 214 can be further extended. Specifically, when the number of the third baffles is one, the structure of the third baffle may be the same as that of the first baffle 221. A part of the third baffle is inserted into the heat exchange area 214, and a third heat exchange area 2143 is formed between the third baffle and the second baffle 222. Another part of the third baffle extends downward to the outside of the heat exchange area 214 along the second direction, and a fourth heat exchange area (not shown in the figure) is formed on the side of the third baffle away from the second baffle 222. The fourth heat exchange area forms the air outlet end of the heat exchange area 214. The air flow flowing into the heat exchange area 214 through the first heat exchange area 2141 can flow out of the heat exchange area 214 along the first heat exchange area 2141, the second heat exchange area 2142, the third heat exchange area 2143, and the fourth heat exchange area in sequence. When the number of the third baffles is two, the structure of the third baffle close to the second baffle 222 may be the same as that of the first baffle 221, and a fourth heat exchange area is formed between the third baffle and the second baffle 222. The structure of the third baffle far from the second baffle 222 may be the same as that of the second baffle 222, and a fifth heat exchange area (not shown in the figure) is formed between the third baffle far from the second baffle 222 and the third baffle close to the second baffle 222. The fifth heat exchange area forms the air outlet of the heat exchange area 214. When the number of the third baffles is more, it can be set by analogy.

[0063] Combined with Figure 5 and Figure 6As shown, in some embodiments of the present application, the number of at least one baffle assembly 22 is two, and the two baffle assemblies 22 are symmetrically arranged in the heat exchange area 214 along the first direction.

[0064] In some embodiments of the present application, the two baffle assemblies 22 are symmetrically arranged in the heat exchange area 214 along the first direction. Among them, each baffle assembly 22 is respectively provided with a first baffle 221 and a second baffle 222. Specifically, the arrangement form of the baffles in the heat exchange area 214 is as follows. Along the first direction, the first baffle 221, the second baffle 222, the second baffle 222, and the first baffle 221 are arranged in sequence. Among them, the first baffles 221 on both sides respectively form a first heat exchange area 2141 with the first mounting plate 211 and the second mounting plate 212 on both sides, that is, air inlets are respectively formed at both ends of the heat exchange area 214 along the length direction. The second heat exchange areas 2142 are respectively formed between the first baffles 221 and the second baffles 222 on both sides, and the third heat exchange area 2143 is formed between the two second baffles 222. The third heat exchange area 2143 forms the air outlet end of the heat exchange area 214. The air flow outside the heat exchanger body 21 can enter the heat exchange area 214 through the first heat exchange areas 2141 on both sides, enter the third heat exchange area 2143 through the second heat exchange areas 2142 on both sides, and flow out of the heat exchange area 214 through the third heat exchange area 2143.

[0065] Combined with Figures 1 to 6 As shown, in some embodiments of the present application, the air inlet 311 of the air duct assembly 30 can be arranged between the two second baffles 222. Thus, under the action of the fan assembly 40, the air flow in the heat exchange area 214 can flow into the air inlet 311 through the third heat exchange area 2143 between the two second baffles 222, and be output to the freezer 12 and the refrigerator compartment 11 through the air duct assembly 30.

[0066] Combined with Figure 2 、 Figure 3 、 Figure 4 and Figure 7As shown, in some embodiments of the present application, the air duct assembly 30 includes a first housing portion 31 and a second housing portion 32. The first housing portion 31 and the second housing portion 32 are connected to each other and enclose an accommodation cavity therebetween. By splitting the air duct assembly 30 into two parts, namely the first housing portion 31 and the second housing portion 32, it is convenient to arrange the fan assembly 40 or other structural members in the accommodation cavity. In some embodiments of the present application, the first housing portion 31 and the second housing portion 32 can also be set as an integral structure, and the fan assembly 40 can be fixed inside the air duct assembly 30 before the air duct assembly 30 is formed. Among them, the first housing portion 31 is arranged close to the heat exchanger assembly 20, and an air inlet 311 is provided through the plate surface thereof. The second housing portion 32 is arranged close to the drawer 14, and an air outlet is provided on its plate surface. Thus, the cold air flow passing through the heat exchanger body 21 can enter the interior of the air duct assembly 30 through the air inlet 311 and flow into the drawer 14 through the air outlet, for freezing the food in the drawer 14. In some embodiments of the present application, an air outlet can also be provided on the first housing portion 31, or an air outlet can be provided between the first housing portion 31 and the second housing portion 32.

[0067] In some embodiments of the present application, a rib plate 312 protrudes from the plate surface of the first housing portion 31 facing the second housing portion 32, and the end of the rib plate 312 is connected to the inner wall surface of the second housing portion 32. Thus, an air outlet duct is enclosed among the first housing portion 31, the second housing portion 32, and the rib plate 312. Among them, a first air outlet duct 3121 and a second air outlet duct 3122 are formed at the bottom of the air outlet duct along the second direction. Two first air outlets 321 are arranged side by side along the first direction on the second housing portion 32, and the two first air outlets 321 are respectively arranged corresponding to and communicated with the first air outlet duct 3121 and the second air outlet duct 3122. Thus, cold air is conveyed into the drawer 14 through the two first air outlets 321 together. The second housing portion 32 is also provided with a plurality of second air outlets 322. The second air outlets 322 are arranged above the first air outlets 321 along the second direction and are communicated with the air outlet ducts on both sides of the air inlet 311. The second air outlets 322 can convey cold air into the drawer 14. Thus, cold air is conveyed to different positions of the drawer 14 along the second direction through the first air outlets 321 and the second air outlets 322. According to the different numbers of drawers 14 arranged along the second direction, more air outlets communicated with the drawers 14 can also be provided.

[0068] Combined with Figure 2 、 Figure 3 、 Figure 4 and Figure 7 As shown, in some embodiments of the present application, the air duct assembly 30 is also provided with a third air outlet 313 communicated with the accommodation cavity. Thus, a part of the cold air generated by the heat exchanger assembly 20 is output to the refrigerating chamber 11 through the third air outlet 313, and further refrigerates the food in the refrigerating chamber 11.

[0069] In some embodiments of the present application, a third air outlet 313 is provided at the top of the first housing portion 31. A refrigerating air duct inlet 123 and a refrigerating air duct outlet 124 are further provided at the top of the refrigerating chamber liner 121. The refrigerating air duct inlet 123 is disposed opposite to the third air outlet 313. Part of the cold air in the air duct assembly 30 can enter the refrigerating chamber 11 sequentially through the third air outlet 313 and the refrigerating air duct inlet 123. After the cold air exchanges heat with the food in the refrigerating chamber 11, it enters the refrigerating chamber liner 121 through the refrigerating air duct outlet 124, and finally flows to the heat exchanger assembly 20. Under the action of the heat exchanger assembly 20 and the fan assembly 40, a circulating cold air flow is formed and output to the refrigerating chamber 11 and the freezing chamber 12 again. Specifically, the refrigerating air duct inlet 123 and the refrigerating air duct outlet 124 are provided above the back plate 122.

[0070] Combined with Figures 3 to 7 As shown, in some embodiments of the present application, an air return opening is further provided on the air duct assembly 30, and the air return opening is communicated with the drawer 14. After the cold air exchanges heat with the food in the drawer 14, it can return to the bottom of the heat exchanger assembly 20 through the air return opening. Under the action of the heat exchanger assembly 20 and the fan assembly 40, a circulating cold air flow is formed and output to the drawer 14 again.

[0071] In some embodiments of the present application, an air return opening is formed at the bottom of the first housing portion 31, and the air return opening is correspondingly disposed with the first heat exchange area 2141 or is disposed below the first heat exchange area 2141. The number of air return openings can be two, namely a first air return opening 314 and a second air return opening 315. The first air return opening 314 and the second air return opening 315 are spaced along the first direction at the bottom of the first housing portion 31, and the first air return opening 314 and the second air return opening 315 are respectively communicated with the first heat exchange areas 2141 on both sides of the heat exchanger assembly 20. The air flow that exchanges heat with the food in the drawer 14 can flow out to one side of the air duct assembly 30 facing the heat exchanger assembly 20 through the air return openings on both sides, and flow into the heat exchange area 214 through the first heat exchange areas 2141 on both sides of the heat exchanger assembly 20. Thus, cold air is formed again under the action of the heat exchanger body 21, and returns to the drawer 14 again through the air duct assembly 30, thereby forming a circulating cold air.

[0072] In some embodiments of the present application, a first wind deflector 323 and a second wind deflector 324 are spaced along the first direction at the bottom of the second housing portion 32. The first wind deflector 323 and the second wind deflector 324 are respectively disposed opposite to the first air return opening 314 and the second air return opening 315, so as to guide the air flow flowing out of the drawer 14 to the first air return opening 314 and the second air return opening 315, and flow out to one side of the air duct assembly 30 provided with the heat exchanger assembly 20 through the first air return opening 314 and the second air return opening 315.

[0073] Combined Figures 3 to 6 As shown, in some embodiments of the present application, the heat exchanger assembly 20 further includes a heating element 24.

[0074] During the refrigeration operation of the heat exchanger assembly 20, the low temperature near the heat exchanger body 21 condenses the moisture in the air into frost, which covers the outer surface of the heat exchanger body 21, thereby reducing the heat exchange efficiency of the heat exchanger body 21. In order to improve the heat exchange efficiency of the heat exchanger body 21, when defrosting the surface of the heat exchanger body 21 is required. The heating element 24 is disposed below the heat exchange area 214, that is, the heating element 24 is disposed below the heat exchange tubes 213. By operating the heating element 24, the heating element 24 heats the surrounding air, and the heated air can heat the heat exchanger body 21, thereby defrosting the heat exchanger body 21, and further improving the refrigeration efficiency of the heat exchanger body 21.

[0075] Combined Figure 3 、 Figure 4 and Figure 8 As shown, in some embodiments of the present application, the heat exchanger assembly 20 further includes a water collection box 23. During the defrosting process of the heat exchanger body 21, the ice and frost melt into water and fall vertically, or the ice and frost directly fall vertically. Part of the water collection box 23 is disposed at the bottom of the heat exchanger body 21 and is used to collect the fallen water or ice and frost. Wherein, the water collection box 23 includes a first side plate 231, a second side plate 232 and a third side plate 233 connected in sequence, and the water collection box 23 further includes a bottom plate 234 respectively connected to the bottom edges of the first side plate 231, the second side plate 232 and the third side plate 233, so that the first side plate 231, the second side plate 232, the third side plate 233 and the bottom plate 234 jointly enclose a cavity structure with an open top and open sides. During installation, the bottom plate 234 can be disposed below the heat exchanger body 21, and the bottom of the heat exchanger body 21 can be placed in the cavity structure of the water collection box 23 through the side opening, so as to collect the water or ice and frost falling from the heat exchanger body 21 through the water collection box 23. Wherein, in order to facilitate the discharge of the water in the water collection box 23, a water leakage port 2341 is provided through the bottom plate 234, and along the direction of the four peripheral edges of the bottom plate 234 towards the water leakage port 2341, the bottom plate 234 is inclined downward in the vertical direction, so that the water in the water collection box 23 flows towards the water leakage port 2341 and is discharged to the outside of the freezer liner 121 through the water leakage port 2341 connected to the pipeline.

[0076] 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 thought of 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. A heat exchanger assembly, characterized in that, Comprising: A heat exchanger body, in which a heat exchange area is formed. At least one baffle assembly, the baffle assembly includes a first baffle and a second baffle arranged at intervals along a first direction, the first baffle and the second baffle are respectively arranged intersecting with the heat exchange area, and divide the heat exchange area along the first direction into a first heat exchange area, a second heat exchange area and a third heat exchange area arranged in sequence. At least part of the structure of the first baffle and at least part of the structure of the second baffle overlap along a second direction, and configure the air flow in the heat exchange area to flow sequentially along the first heat exchange area, the second heat exchange area and the third heat exchange area. Wherein, the first heat exchange area forms the air inlet end of the heat exchanger body, the first direction intersects with the second direction, and the first direction is the length direction of the heat exchanger body.

2. The heat exchanger assembly according to claim 1, wherein, The first baffle includes a first insertion part and a first extending part connected to each other. The first insertion part is inserted between the first heat exchange area and the second heat exchange area, and the first extending part extends along the second direction to the outside of the heat exchange area. An air inlet end is formed between the first extending part and the heat exchanger body.

3. The heat exchanger assembly according to claim 2, wherein, The second baffle includes a second insertion part and a second extending part connected to each other. The second insertion part is inserted between the second heat exchange area and the third heat exchange area, and the second extending part extends along the second direction to the outside of the heat exchange area, and the second extending part and the first extending part are respectively arranged on both sides of the heat exchange area along the second direction.

4. The heat exchanger assembly according to claim 3, characterized in that, The first insertion part has a first end facing away from the first extending part. Along the first direction, the first end has a first projection in the plane of the second baffle, and the first projection is located on the second baffle. The second insertion part has a second end facing away from the second extending part. Along the first direction, the second end has a second projection in the plane of the first baffle, and the second projection is located on the first baffle.

5. The heat exchanger assembly according to claim 4, characterized in that, Along the second direction, the first insertion part has a dimension H1, the second insertion part has a dimension H2, and the heat exchange area has a dimension H3. Wherein, H1 is equal to H3, and H2 is less than H3.

6. The heat exchanger assembly according to claim 1, characterized in that, Along a third direction, the two side edges of the first baffle are flush with or extend beyond the two side edges of the heat exchange area, and / or, along the third direction, the two side edges of the second baffle are flush with or extend beyond the two side edges of the heat exchange area, wherein the third direction is respectively perpendicular to the first direction and the second direction.

7. The heat exchanger assembly according to claim 1, wherein The baffle assembly further includes at least one third baffle. The first baffle, the second baffle and the at least one third baffle are arranged at intervals in sequence along the first direction. The third baffle is arranged intersecting with the heat exchange area, and the third baffle partially overlaps with the adjacent baffle along the second direction.

8. The heat exchanger assembly according to any one of claims 1 to 7, characterized in that The number of the at least one baffle assembly is two, and the two baffle assemblies are symmetrically arranged on the heat exchange area along the first direction.

9. A refrigeration device, characterized in that, Having the heat exchanger assembly according to any one of claims 1 to 8, the refrigeration device further includes an air duct assembly, the air duct assembly is provided with an air inlet and an air return opening, the air inlet is communicated with the third heat exchange area, and the air return opening is communicated with the first heat exchange area.

10. The refrigeration device according to claim 9, characterized in that, The refrigeration device includes a refrigerator, the refrigerator includes a freezer compartment, and the heat exchanger assembly is arranged in the freezer compartment.

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